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Alpine Immune Sciences

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FY2017 Annual Report · Alpine Immune Sciences
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

(Mark One)
☒

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2017

OR

☐

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD
FROM                      TO                     

Commission File Number 001-37449

ALPINE IMMUNE SCIENCES, INC.

(Exact name of Registrant as specified in its Charter)

Delaware
(State or other jurisdiction of
incorporation or organization)

201 Elliott Avenue West, Suite 230
Seattle, WA
(Address of principal executive offices)

20-8969493
(I.R.S. Employer
Identification No.)

98119
(Zip Code)

Registrant’s telephone number, including area code: (206) 788-4545

Securities registered pursuant to Section 12(b) of the Act: Common Stock, Par Value $0.001 Per Share; Common stock traded on the NASDAQ stock market
Securities registered pursuant to Section 12(g) of the Act: None
Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. YES ☐ NO ☒
Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. YES ☐ NO ☒
Indicate by check mark whether the Registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such
shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. YES ☒ NO ☐
Indicate by check mark whether the Registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to
Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit and post such files). YES ☒ NO ☐
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405) is not contained herein, and will not be contained, to the best of Registrant’s knowledge,
in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ☒
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions
of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer

Non-accelerated filer

  ☐

  ☐  (Do not check if a smaller reporting company)

Emerging growth company

  ☒

   Accelerated filer

   Smaller reporting company

  ☐

  ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards
provided pursuant to Section 13(a) of the Exchange Act.  ☒
Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). YES ☐ NO ☒
The aggregate market value of the voting and non-voting common equity held by non-affiliates of the Registrant, based on the closing price of the shares of common stock on The NASDAQ Stock
Market on June 30, 2017, was approximately $28.4 million. Shares of common stock held by each executive officer and director and by each other person who may be deemed to be an affiliate of
the Registrant, have been excluded from this computation. The determination of affiliate status for this purpose is not necessarily a conclusive determination for other purposes.
The number of shares of Registrant’s Common Stock outstanding as of March 20, 2018 was 13,846,084.
Portions of the registrant’s definitive proxy statement to be filed with the Securities and Exchange Commission in connection with the registrant’s 2018 Annual Meeting of Stockholders, which will
be filed subsequent to the date hereof, are incorporated by reference into Part III of this Form 10-K. Such proxy statement will be filed with the Securities and Exchange Commission not later than
120 days following the end of the registrant’s fiscal year ended December 31, 2017.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
PART I
Item 1.
Item 1A.
Item 1B.
Item 2.
Item 3.
Item 4.

PART II
Item 5.
Item 6.
Item 7.
Item 7A.
Item 8.
Item 9.
Item 9A.
Item 9B.

PART III
Item 10.
Item 11.
Item 12.
Item 13.
Item 14.

PART IV
Item 15.

Table of Contents

Forward-Looking Statements

Business
Risk Factors
Unresolved Staff Comments
Properties
Legal Proceedings
Mine Safety Disclosures

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
Selected Financial Data
Management’s Discussion and Analysis of Financial Condition and Results of Operations
Quantitative and Qualitative Disclosures About Market Risk
Financial Statements and Supplementary Data
Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
Controls and Procedures
Other Information

Directors, Executive Officers and Corporate Governance
Executive Compensation
Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Certain Relationships and Related Transactions, and Director Independence
Principal Accounting Fees and Services

Exhibits, Financial Statement Schedules

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Forward-Looking Statements

This Annual Report on Form 10-K contains forward-looking statements and information within the meaning of Section 27A of the Securities Act of

1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, which are subject to the “safe harbor” created by those sections. In
some cases you can identify these statements by forward-looking words such as “believe,” “may,” “will,” “estimate,” “continue,” “anticipate,” “intend,”
“could,” “would,” “project,” “plan,” “expect,” or similar expressions, or the negative or plural of these words or expressions. You should read these
statements carefully because they discuss future expectations, contain projections of future results of operations or financial condition, or state other
“forward-looking” information. These statements relate to our future plans, objectives, expectations, intentions and financial performance and the
assumptions that underlie these statements. These forward-looking statements include, but are not limited to:

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our ability to identify additional products or product candidates;

our estimates regarding our expenses, revenues, anticipated capital requirements and our needs for additional financing;

our ability to obtain funding for our operations;

the implementation of our business model and strategic plans for our business and technology;

the timing of the commencement, progress and receipt of data from any of our preclinical and potential clinical trials;

the expected results of any preclinical or clinical trial and the impact on the likelihood or timing of any regulatory approval;

the scope of protection we are able to establish and maintain for intellectual property rights covering our technology and product candidates;

the timing or likelihood of regulatory filings and approvals;

the therapeutic benefits, effectiveness and safety of our product candidates;

the rate and degree of market acceptance and clinical utility of any future products

our ability to maintain and establish collaborations;

our expectations regarding market risk, including interest rate changes;

developments relating to our competitors and our industry; and

our expectations regarding licensing, acquisitions and strategic operations.

These forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those
anticipated in the forward-looking statements. Factors that might cause such a difference include, but are not limited to, those discussed in this report in Part
II, Item 1A — “Risk Factors,” and elsewhere in this report. Forward-looking statements are based on our management’s beliefs and assumptions and on
information currently available to our management. These statements, like all statements in this report, speak only as of their date, and we undertake no
obligation to update or revise these statements in light of future developments, except as required by law.

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Item 1. Business.

Overview

PART I

Our company is focused on discovering and developing innovative, protein-based immunotherapies targeting the immune synapse to treat cancer,

autoimmune/inflammatory disorders, and other diseases. Our proprietary scientific platform uses a process known as directed evolution to create therapeutics
potentially capable of modulating human immune system proteins.

In our pre-clinical studies, our scientific platform has proven capable of identifying novel molecules, including single domains capable of modulating

multiple targets. These molecules have demonstrated efficacy in in vitro and in vivo mouse models. We believe therapeutics generated by our scientific
platform have the potential to provide benefit in a broad range of immune system disorders. We have chosen to focus our initial efforts in select areas with
unmet medical needs in oncology and inflammatory/autoimmune diseases.

The human immune system is a complex system evolved to protect humans from external infections and harmful changes of internal cells. The
Immunoglobulin Superfamily (abbreviated “IgSF”) is the name given to the largest family of adhesion, costimulatory (activating), and inhibitory (blocking)
proteins found on the surface of immunological, neurological, and other human cell types. Our scientific approach and platform are based upon IgSF protein
units (referred to as “domains”). We believe the IgSF protein family is particularly valuable because many IgSF proteins naturally bind multiple binding
partners, also referred to as “counterstructures”.

The scientific discoveries resulting from our work to date have resulted from applying our technology to IgSF proteins to create what we call “Variant

Ig Domains” or “vIgDs”. Ours is a platform technology, and we believe our scientific platform represents a novel approach to targeting the immune system.
Our scientists create vIgDs through directed evolution—an iterative scientific engineering process purposefully conducted to “evolve” an IgSF protein
towards a desired therapeutic function. The potential to create therapies capable of working within a formed synapse, forcing a synapse to occur, or
preventing a synapse from occurring are important, novel attributes of our scientific platform.

In cancer, the immune system is often suppressed by inhibitory signals (or quiescent due to lack of costimulatory signals) within the tumor
microenvironment. We believe our vIgDs can stimulate the immune system by delivering an activating signal, blocking an inhibitory signal, or both. The
potential of vIgDs to modulate multiple inhibitory and/or activating pathways simultaneously for the treatment of cancer is a powerful and novel attribute of
our scientific platform.

In autoimmune and inflammatory conditions, the immune system has become overactive and mistakenly attacks healthy cells. Our vIgDs are
potentially capable of delivering an inhibitory signal, blocking an activating signal, or both—potentially diminishing the severity of autoimmune and
inflammatory conditions.

Our scientific platform creates a variety of molecules with broad potential applicability across diseases. vIgDs can be formatted in many different

ways, including standard Fc fusion proteins, localized Fc fusion proteins, and monoclonal antibody fusion proteins as well as formulated as a Transmembrane
Immunomodulatory Protein (“TIP”) or as a Secreted Immunomodulatory Protein (“SIP”) The ability to utilize different formats potentially broadens future
applications of vIgDs in addition to potentially conferring useful therapeutic properties.

ALPN-101 is our lead program and is being developed for the treatment of autoimmune and inflammatory diseases. We are developing our ALPN-

202 program for the treatment of cancer.

We expect to request regulatory approval to begin human clinical trials of ALPN-101 (ICOSL vIgD-Fc), our dual ICOS/CD28 antagonist, in the

fourth quarter of 2018. We expect the target indications for ALPN-101 will be inflammatory and/or autoimmune disorders or both.

We expect to request regulatory approval to begin human clinical trials with a molecule from our ALPN-202 program in 2019. The ALPN-202

program is a CD80 vIgD-Fc, a dual PD-1/CTLA-4 antagonist with CD28 costimulation. The target indication for the ALPN-202 program will be the
treatment of cancer.

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In addition to advancing programs internally, we continue to seek partners who can bring therapeutic area experience, development expertise,

commercialization capabilities, and funding allowing us to maximize the potential of vIgDs and our scientific platform.

In October 2015, we signed a research and license agreement with Kite Pharma, a Gilead company (“Kite”), granting Kite an exclusive license to two

of our TIP programs for use in Kite’s ECT programs. We received $5.5 million in up-front cash and are eligible to receive up to $530.0 million in
developmental, clinical, and regulatory milestone payments in addition to royalties on any products containing our TIPs. In the collaboration, we provide the
TIPs and perform in vitro testing, while Kite is responsible for in vivo testing, manufacturing, clinical trials and commercialization of any resulting therapies.
This collaboration was renewed in October 2017.

Immunology Background

Our therapies are being evaluated for their potential to target immune system disorders, including oncology (cancer), infectious disease, and
inflammatory/autoimmune disease. Based on preclinical data generated to date, we believe vIgDs have the potential to provide therapeutic benefit in a broad
range of immune system disorders. We have chosen to focus our initial efforts on select therapeutic areas with unmet medical needs in oncology and
inflammatory/autoimmune disease.

The human immune system is a complex system evolved to protect the host from external infection and harmful alterations of natural cells. At the

most basic level, this system has evolved to detect antigens. Antigens are essentially anything causing the immune system to try and mount an immune
response. Antigens vary from pathogens like a virus, mutated cells like those involved in causing cancer, or even otherwise healthy cells. In special situations
such as transplanted organs or cells from a bone marrow transplant, the body sees antigens from these otherwise normal cells as “non-self”.

The immune system determines if an antigen is harmful or not, and then acts accordingly—activating to destroy cells displaying the target antigen or
inhibiting the immune system from doing anything if the target antigen is judged not harmful. The immune system has a memory for antigens so it can mount
an activating or inhibitory response more quickly if a previously-seen antigen is encountered again.

The basic actors within the immune system are as follows:

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Antigen presenting cells (“APCs”) responsible for gathering antigens and presenting them to the immune system.

T cells armed to destroy cells the immune system has decided are harmful—including pathogens, cancer cells, and transplanted cells.

B cells capable of recognizing foreign antigens and secreting antibodies to facilitate removal of the identified antigens.

Regulatory T cells and suppressive myeloid cells which inhibit the immune system from responding, preventing the immune system from
attacking healthy cells.

Importantly, the APCs in the immune system gather antigens to determine whether they are harmful or not. If the antigens are judged harmful by the

immune system, cytotoxic (effector) cells are activated to eliminate the harmful cells. If the antigens are judged not harmful by the immune system,
regulatory cells inhibit the immune system to ensure no normal healthy cells are killed.

Activation and inhibition can be thought of like applying the gas or pressing the brake in an automobile. When viewed through the lens of activation

(costimulation) and inhibition, our scientists work to develop therapies seeking to do one of four things:

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Deliver an activating signal (press on the gas) to get a stronger immune response

Block an inhibitory signal (release the brake) to get a stronger immune response

Deliver an inhibitory signal (press on the brake) to slow down an existing immune response

Block an activating signal (release the gas) to slow down an existing immune response

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The above can also be expressed in more precise scientific terminology this way:

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Agonize a costimulatory receptor to press on the gas

Antagonize an inhibitory receptor to release the brake

Agonize an inhibitory receptor to press on the brake

Antagonize a costimulatory receptor to release the gas

For infectious disease or cancer, patients need a stronger immune response so we seek to develop therapies delivering an activating signal, blocking an

inhibitory signal, or both. If a patient has an inflammatory/autoimmune disease or has received a transplant, we seek to develop therapies delivering an
inhibitory signal, blocking an activating signal, or both.

IgSF Proteins Defined

The IgSF is the name given to the largest family of adhesion, costimulatory (activating), and inhibitory proteins found on the surface of

immunological, neurological, and other human cell types. Structurally predicted to number over 400 proteins, these cell surface and soluble molecules are
broadly involved with recognition of antigens, assisting in the formation of the immune synapse, and performing costimulatory, co‑inhibitory, and cytokine
receptor signaling functions.

Figure 1 below shows several IgSF protein types ranging from a CD1 protein with a single “V” domain to the IgM protein which has a variety of “V”

and “C” domains (referred to in scientific literature as “IgC” and “IgV” domains). This family of proteins underpins our technology because our scientific
approach and platform are based upon engineering these IgC and IgV domains for therapeutic benefit.

Figure 1

IgSF proteins like those in Figure 1 have evolved to play a primary role in the immune system of higher order species. This is reflected in the central
components of the adaptive immune system—such as antibodies, MHC molecules, T cell receptors (“TCRs”), and B cell receptors—all being composed of
IgSF domains. Other critical IgSF components of T cell responses include the TCR co-receptors, CD4 and CD8.

Current therapeutic advances in oncology block “checkpoint inhibitor” IgSF domains such as PD-1 and CTLA-4. The next generation of therapeutics
target checkpoint inhibitor IgSF domains such as TIGIT, LAG-3, TIM-3, and BTLA. Critical costimulatory ligands of the B7 family are all IgSF proteins, as
are their activating receptors CD28, ICOS, CD226, and

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TMIGD2. IgSF domains participate in the most critical aspects of adaptive immunity. Figure 2 below shows a subset of the over 400 identified IgSF proteins
and where they are typically found on tumor cells and immune system cells.

Figure 2

Figure 2 illustrates how some IgSFs appear on multiple cell types. For example, CD28 (and its ligand binding partners or “counterstructures”, CD80

and CD86) and ICOS (and its counterstructure ICOSL) show up on CD4 helper T cells, myeloid/myeloid-derived suppressor cells, CD4 TREG regulatory
cells, and CD8 T cells. A vIgD targeting ICOS and CD28, to continue the example, could therefore potentially have activity across a number of these cell
types.

Previous utilizations of IgSF domains as therapeutic products have been limited by the generally low affinities of native, unmodified IgSFs (also

referred to as “wild-type” IgSFs) have for their various counterstructures. We believe our expertise in protein engineering and immunological function
enables novel therapeutic mechanisms of action not previously appreciated by the biopharmaceutical industry.

Specifically, our scientists apply directed evolution via our scientific platform to strategically engineer single IgSF domains to potentially bind to

multiple IgSF counterstructures. The ability to potentially bind multiple counterstructures with varying affinity has resulted in increased functional activity in
our pre-clinical work and potentially represents the discovery of novel biology by using our scientific platform.

While the IgSF family also includes antibodies, and monoclonal antibodies are commonly used as therapeutics by the biotechnology industry, we are

interested instead in the native, non-antibody, IgSF proteins secreted or expressed on the surface of human cells. We believe these members of the IgSF
family are particularly valuable in terms of therapeutic potential compared to antibodies because IgSF proteins have often evolved to bind multiple
counterstructures.

Even though our non-antibody vIgDs possess novel functional activity not associated with antibody reagents, we believe vIgDs will share many of the

beneficial biochemical properties making antibodies attractive therapeutic molecules, such as stability, manufacturability, and flexible formatting—while
retaining novel vIgD benefits and potentially enabling new opportunities to target human disease.

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Immune Synapse Defined

The immune synapse is a temporary, dynamic interaction at the core of the immune system’s response to antigens. When the synapse is created

between two cells (like an APC and a T cell, or a tumor cell and a T cell), adhesion molecules hold cell membranes in tight formation to enable sufficient
antigen presentation and/or receptor signaling. When this exchange works well, the body is adequately defended against a wide range of pathologies—
including cancer and infectious diseases. When the exchange malfunctions, harmful cells are not destroyed or normal/healthy cells are mistakenly attacked.

The immune synapse is very small and often exists for just minutes. While intact, cells forming the synapse exchange a wide variety of information.
Environmental cues, ligand/receptor expression ratios, and specific receptor orientations come together in a dynamic fashion to determine whether a T cell is
going to respond to a given antigen or recognize it as harmless. Importantly, IgSF proteins are the principal players in the immune synapse—another reason
we chose to focus our scientific platform on IgSF proteins.

Some of our research is targeted to these critical moments of T cell activation where vIgD-based therapeutics generated by our proprietary scientific

platform can be used to modulate the spatial arrangement and signaling of multiple targets in the immune synapse. Other research projects seek to develop the
ability to force synapses to occur, or prevent them from occurring, based upon the desired therapeutic outcome. This flexibility to work within a formed
immune synapse, force an immune synapse to occur, or prevent an immune synapse from occurring is an important, novel attribute of our vIgDs.

Inflammatory/Autoimmune Disease

Inflammatory or autoimmune diseases like Type I diabetes, systemic lupus erythematosus (“lupus”), inflammatory myositis (for example,
polymyositis and dermatomyositis), Sjögren’s syndrome, and inflammatory bowel disease are a result of the immune system targeting the body’s healthy
tissues by mistake. There are more than 80 known types of inflammatory/autoimmune diseases, many of which are severely debilitating and/or life
threatening. A related condition is when a transplant patient’s body attacks the newly transplanted organ (graft rejection) or, in the case of stem cell
transplants, the newly transplanted cells attack the patient’s body (graft versus host disease). These are all immune system disorders caused by the immune
system having too much activation or too little inhibition. For simplicity, we refer to autoimmune and inflammatory diseases as simply “inflammatory
diseases” for the remainder of this section, or both.

Our therapeutic goal with inflammatory disease is to press on the brake by delivering an inhibitory signal or release the gas by blocking an activating

signal. We believe one novel aspect of our proprietary scientific platform is the potential ability to create a single vIgD-based therapeutic capable of doing
both. We do not currently have a therapeutic targeting inflammatory diseases in human clinical trials or on the market. However, based upon evidence from
preclinical studies to date, we believe our scientific platform has the potential to produce vIgD‑based therapeutics targeting inflammatory diseases.

Substantial progress has been made over the last decade in developing disease-modifying therapies to slow or stop disease progression in multiple
inflammatory indications. Inhibitors of the pro-inflammatory cytokine TNFα, as well as approved drugs like abatacept and belatacept, have led to disease
reductions and improvements in quality of life for patients with a variety of inflammatory disorders including rheumatoid arthritis, psoriasis, ulcerative colitis,
Crohn’s disease, and others.

Challenges in Inflammatory Disease

We believe there remains a large unmet need for improved efficacy in the treatment of inflammatory diseases. For example, in rheumatoid arthritis,
where arguably the greatest advances in treating inflammatory disease have been made, patients frequently cycle through different biologic therapies and a
recent meta-analysis found only just over half of patients on anti-TNFα therapies achieved at least a twenty percent improvement in disease activity. 1

The need for novel therapies is particularly acute for patients with chronic diseases such as lupus, for which only one new drug has been approved by

the FDA in the last 50 years. Belimumab, a monoclonal antibody inhibiting B-cell activating factor, was approved in 2011 by the FDA despite concerns the
therapy resulted only in modest improvement for lupus patients. Belimumab demonstrated a reduction in corticosteroid usage and an acceptable safety profile,
but was not approved for use in severe active lupus nephritis or severe active central nervous system lupus.

1 Lloyd, et al, Rheumatology (Oxford), v 45 n 112, December 2010, pp 2313-21

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Graft versus host disease (“GvHD”), with a mortality rate of 75% or more, is an inflammatory disease which has been particularly challenging for

development of new therapies and where there exists a substantial unmet need. Over the last two decades, a multitude of therapies including stem cell
transplant, IL-2 antagonists, antithymocyte globulin, anti-CD52, anti-TNF therapies, and others have been studied. While ibrutinib was recently approved for
chronic GvHD, there are no approved therapies for the treatment of acute GvHD and a significant number of chronic GvHD patients did not have durable
responses to ibrutinib.

How We Are Different

We currently plan to develop therapeutics for inflammatory diseases by focusing on key activating and inhibitory IgSFs driving aberrant immune

reactions. For these diseases, we plan on using our proprietary scientific platform to create vIgD-based therapies intended to affect the immune synapse
(usually by preventing its formation) and/or interacting directly with those IgSF proteins causing immune system reactions to healthy tissues. We do not
currently have a therapeutic targeting inflammatory diseases in human clinical trials or on the market. However, based upon evidence from preclinical studies
to date, we believe our scientific platform has the potential to produce therapeutics targeting inflammatory diseases.

Although some signaling between cells occurs between singular ligand and receptor pairs, there are an increasing number of examples where
signaling between cells involves multi-protein complexes consisting of three or more proteins recognized in cytokine, adhesion, inhibitory, and other
signaling pathways. IgSF domains are exquisitely evolved for such complex interactions. Our next-generation therapies target multi-protein complexes and
could potentially facilitate transformative patient care by forcing complexes consisting of the desired protein combinations.

Our scientific platform is flexible enough to be able to take combined approaches like blocking costimulatory proteins ICOS and CD28. When
formatted properly, the resulting domain could potentially work in the immune synapse—or potentially prevent an immune synapse from forming—thereby
potentially simultaneously decreasing the activating signal and sparing the inhibitory signal, ideally reducing or eliminating symptoms of inflammatory
disease.

Oncology

Cancer is broadly defined as normal human cells growing in an uncontrolled fashion and capable of spreading this aberrant activity elsewhere in the

body. Cancer can also be seen as a failure of the immune system to recognize transformed, harmful cells. Tumors develop because cancer cells learn to evade
the immune system or dampen immune system activity to such a low level the tumor grows despite an otherwise healthy immune system.

Traditional cancer treatments have focused on directly killing tumor cells through the use of toxic chemicals like chemotherapy or other approaches
like irradiating cells. The 2010 FDA approval of sipuleucel-T marked a meaningful change in how tumors are treated. Sipuleucel-T represented the FDA’s
first approval of an active cancer immunotherapy. It was designed to help a patient’s immune system attack prostate cancer cells. Brought to FDA approval by
one of the founders of our company, the approval of sipuleucel-T energized the field to focus more closely on how to make use of the immune system to treat
cancer.

The subsequent development of therapies targeting “checkpoint inhibitors” or pathways responsible for inhibiting an immune response has resulted in

several recent FDA-approved therapeutics. Targeting checkpoint inhibitors, thereby releasing the brake on the immune system, has provided meaningful
efficacy for a subset of cancer patients.

The first drug approved in this therapeutic class was ipilimumab, an antibody interfering with inhibitory signals from an IgSF protein called CTLA-4.
In 2014, two antibodies blocking the inhibitory IgSF protein PD-1— pembrolizumab and nivolumab—were approved in multiple indications. Antagonists of
the IgSF protein PD-L1 followed (atezolizumab, avelumab, and durvalumab).

In addition to modulators of these IgSF proteins, several other immunotherapies for cancer are either approved or in development including adoptive

T cell therapies (CAR-T, TCR and autologous T cells called “TILs”), cancer vaccines, and oncolytic viruses.

As noted in more detail below, we believe there is a significant unmet medical need for cancer patients for whom existing immunotherapies fail to

help or who relapse after initial success on these existing immunotherapies.

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Challenges in Oncology

While checkpoint inhibitors have meaningfully changed cancer treatment, their benefit is only observed in a minority of patients and response rates
vary substantially by tumor type, disease stage, and other factors. For example, observed response rates for PD-1 inhibitors in melanoma and non-small cell
lung cancer are among the highest and range from 20%–40%—possibly due to the higher mutational burden frequently found in these tumors. In contrast,
response rates of checkpoint inhibitors in ovarian cancers are lower, with clinical data to date demonstrating a 10%–15% response rate. Therapies designed to
stimulate the immune system to attack tumors often have their effect diminished by a tumor’s evolved ability to generate redundant inhibitory signals, or
dampen costimulatory signals, effectively shutting down productive immune responses before the tumor can be cleared.

One of our goals is to “raise the tail of the survival curve” for cancer patients while potentially minimizing further adverse events. In Figure 3, the

arrows represent this concept of “lifting the tail”— achieving a higher percentage of patients with durable relief from their cancer diagnosis.

Adapted from: Cell, v161, n2. April 2015.

Figure 3

While the field of cancer immunotherapy advanced significantly since the approval of sipuleucel-T, no single immunotherapy is capable of creating a

durable anti-tumor response in more than a third of cancer patients—and some types of cancer continue to be resistant to any immunological approach. The
field has initially tried to address this unmet medical need by combining different checkpoint inhibitors—essentially trying to release the brake twice as hard.
Despite several attempts, however, this approach has not resulted in success across a broad variety of cancers.

How We Are Different

Our proprietary scientific platform is potentially capable of engineering wild-type IgSF proteins for therapeutic benefit and with potentially novel

attributes and activity. For example, our platform creates novel IgSF mutants we call vIgDs designed to be capable of antagonizing (blocking) an inhibitory
receptor while agonizing (delivering) an activating signal,

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boosting the immune system’s response to cancer cells. We are evaluating whether these vIgD-based therapeutics will work in patients where there might be
too much inhibition or too little activation in the tumor micro-environment (abbreviated “TME”), or both.

We believe antagonizing inhibitory signals to release the brakes on the immune system is important, but insufficient for most patients. One way we are

different than approved immune-oncology therapeutics is our focus on agonizing activating receptors, pressing on the gas to stimulate the immune system. A
potentially unique attribute of our scientific platform is its ability to create single vIgDs capable of both antagonizing inhibitory receptors (release the brake)
and agonizing activating receptors (press the gas).

We are also developing molecules intended to force synapses to form, delivering activating signals, blocking inhibitory signals, or both. We intend to

evaluate whether these types of therapies could potentially work in situations where there might be insufficient T cells in the TME.

Our early research suggests working with vIgDs engineered through our scientific platform potentially create a more powerful immune system
response compared to unmodified, wild-type IgSF proteins. We do not currently have a therapeutic targeting cancer in human clinical trials or on the market.
However, based upon evidence from our preclinical studies to date, we believe our scientific platform has the potential to produce vIgD-based therapeutics
targeting cancer.

Our Scientific Platform

Our proprietary scientific platform is potentially capable of engineering native IgSF proteins for use as therapeutics. For example, vIgDs can be
engineered with improved binding to single or multiple protein partners or counterstructures. A core potential advantage of our scientific platform is creating
vIgDs with the ability to potentially strengthen binding to one counterstructure while losing or diminishing binding to another—potentially increasing
selectivity for novel therapeutic outcomes. These protein engineering efforts may also potentially uncover binding to previously under-appreciated
counterstructures with the potential to positively impact therapeutic efficacy.

Directed Evolution

We recognize how evolution resulted in a finely-tuned and delicately-balanced human immune system in general, and the important role of complex
IgSF protein interactions in particular. Our aim is to leverage our scientists’ expertise in protein engineering and understanding of the immune system. Our
scientific platform seeks to engineer or evolve natural, wild-type IgSFs in a manner conferring a therapeutic benefit when administered to patients.

Our scientists utilize yeast display protein library strategies to identify variants of wild-type IgSFs with desired binding characteristics. The power of

yeast library approaches derives from the fact libraries can contain up to 109 protein variants with either random or rationally targeted amino acid mutations at
any desired frequency per variant. At this level of protein diversity, it is usually possible to find at least a small fraction of variants with desired binding
profiles. Thus, this technology can potentially provide us with protein variants of interest we can later optimize to potentially achieve the desired biology. We
call this process “directed evolution” and its purpose is to alter the domains on wild-type IgSF proteins to achieve a desired therapeutic goal. This process is
our proprietary scientific platform and we call the altered domains produced by our scientific platforms “vIgDs”.

We believe the key advantages to our approach are:

•

•

•

potential broad applicability since many critical immuno-regulatory proteins are composed of IgSF members;

potentially rapid and precise selection of desired binding properties; and

potential early elimination of unstable proteins because the yeast display platform biases recovery of affinity-modified proteins towards a well-
folded, non-aggregated, and stable subset of proteins;

Figure 4 shows the work flow process of directed evolution in our scientific platform. We start with a wild-type IgSF protein and then enter a cycle of

library generation and yeast display. Flow cytometry or other methods are used to sort for yeast clones displaying variants with desired binding
characteristics. Biologic and biophysical assays of purified proteins assess biological function and manufacturing characteristics. The end product is an
optimized vIgD. Additional cycles can be carried out by building next generation libraries from the output of prior libraries to result in further optimization.

9

 
 
 
 
Figure 4

A key skill in our directed evolution approach is our ability to construct productive libraries. When the structure of the wild-type IgSF protein is

available, potential predictions can be made regarding the optimal amino acid alterations necessary to obtain the desired binding profile. We use these
predictions to create a “rationally designed” library featuring mutations introduced in specific regions of the target IgSF protein. When such information is not
available, mutations can be randomly introduced into the target protein at any desired average number of mutations per variant creating a “random” library.
When our scientists apply these library designs, either approach can yield useful candidate proteins.

Our scientific platform is generally able to improve upon native IgSF activity regardless of whether natural binding affinity is weak or strong. When

starting affinity is very weak, techniques employed by our scientists have accomplished several thousand-fold increases in binding affinity with sometimes as
few as two library generation cycles. Even when starting affinity is very high, our scientific platform can still improve binding affinities. The same general
strategies can be used when the desired therapeutic profile requires reduced affinity compared to the wild-type IgSF.

Our scientists rely on results from various in vitro analyses using human immune cells to guide outputs from our scientific platform. Upon the

completion of one generation of the directed evolution process described above, the identified proteins are reformatted from display on yeast to soluble Fc
fusion proteins produced in mammalian cells, and then tested in vitro with human immune cells. Candidates for further discovery research are identified by
their desired immune system activity compared to the activity of the wild-type IgSF protein or other reference molecules. Those engineered vIgDs most
strongly outperforming wild-type IgSFs and/or reference molecules may then be potentially used as the basis for second- or even third-generation directed
evolution cycles.

Discovering New Biology

We believe the advantages of our scientific platform allow us to identify new biology. Our lead program is an example of this where a single ICOSL
domain, normally only binding ICOS with any physiological relevance, is engineered into a vIgD able to bind both ICOS and CD28. We have replicated this
type of novel biology in other programs directed to disclosed and undisclosed targets.

10

In preclinical animal models, we often find our engineered vIgDs can outperform the relevant wild-type IgSF protein and/or other reference molecules

when the vIgD differs from the wild-type IgSF by as few as one to three mutations. Based on in silico analyses and analogous FDA-approved therapies, we
do not believe vIgDs are unusually susceptible to immunogenic effects causing adverse events or loss of drug activity.

Highly Productive

Our scientific platform is highly productive. A single library run through the directed evolution process can potentially create vIgDs useful in both

oncology and inflammatory/autoimmune conditions. While this potential advantage is not universal for every IgSF target, our experience is most of our
successful discovery campaigns result in vIgDs applicable to a broad variety of therapeutic protein designs and indications. We believe this is a novel attribute
given most other platforms require each molecule to be painstakingly purpose-built for each intended therapeutic area.

Potential vIgD Formats

We believe our vIgDs are highly flexible. In many cases, a single affinity-maturation campaign can result in potential multiple domains suitable for

use in the formats such as those appearing in Figure 5.

Figure 5

Which format is chosen depends upon the therapeutic application of the vIgD, the desired product profile, and/or the needs of our current and future

partners. Figure 5 is not a complete listing as some formats in our discovery program remain undisclosed.

vIgD-Fc

The vIgD-Fc fusion protein is the simplest format. Our lead autoimmune/inflammation program, ALPN-101, and lead oncology program, ALPN‑202,

are both examples of vIgD-Fc formats.

The IgV(s), IgC(s), or both of an engineered vIgD protein are fused to an Fc backbone. Combining vIgDs with antibody Fc domains to make Fc
fusion proteins potentially allows better expression, facilitates purification, and improves pharmacokinetic (dosing) properties. Fc fusion proteins are a
standard format in the industry, with examples such as etanercept, abatacept, and belatacept. In most of our early programs, the Fc backbone is effectorless. In
certain situations, the Fc backbone can be designed to have effector function, potentially capable of depleting problematic cell populations. A vIgD-Fc could
potentially be administered intravenously, subcutaneously, topically, or other methods

Multifunction vIgD-based Molecule

Multiple vIgDs can be combined or “stacked” together with or without an Fc backbone to create a multifunctional, vIgD-based molecule. With the

potential to make use of novel biology discovered using our scientific platform, an Fc fusion with just two domains can potentially affect three, four, or more
IgSF targets.

11

 
 
Unlike most other approaches trying to target multiple checkpoints or costimulatory molecules, or both, our vIgD-based therapeutics are not
traditional antibody constructs or large and unwieldy scaffolds. In general, all of our vIgD-based therapeutics utilize domains appearing very much like the
native IgSF proteins.

V-mAb

Figure 6

Our V-mAb technology potentially allows targeting a vIgD into the tumor microenvironment with a monoclonal antibody. A “V-mAb” is a vIgD

joined with a monoclonal antibody recognizing a validated target (as depicted in Figure 6). Our V-mAbs use the targeting antibody to localize the vIgD to the
TME or target tissue to potentially deliver specific, locally-active immuno-modulation.

Tumors thrive in environments of immune suppression. Immune cells have often been recruited to the TME, but are not responding correctly. In many

cases, the T cells are recognizing antigen in the form of MHC peptide, but this signal is not supported by required costimulatory activity. In these cases, T
cells could benefit from tumor or APC expression of costimulatory ligands such as CD80, CD86, or ICOSL. This strategy will potentially invigorate tumor
immune responses in a tumor-specific context, which could potentially be safer than activating T cells with systemic costimulatory agonists.

From a manufacturing standpoint, V-mAbs may potentially have advantages compared to antibody-drug conjugates or ADCs. ADCs typically join a
targeting monoclonal antibody with a cytotoxic drug. Our V-mAbs are potentially different from the complex four-step manufacturing process (mAb, linker,
drug, and conjugation) necessary for ADCs and do not contain toxic chemicals potentially harmful to bystander cells.

12

 
 
TIP Program

Figure 7

Engineered Cellular Therapies (“ECTs”) in the form of CAR-T cells, engineered TCR human T cells, and engineered TILs have captured the attention

of the scientific community and patients. The first CAR-T products were approved by the FDA in 2017, ushering in a new era of cancer immunotherapy.

Our TIP program (depicted in Figure 7) was created to potentially improve ECTs. The cytotoxicity, cytokine production, and survival of ECTs can
potentially benefit from costimulatory signaling. We created vIgD-based extracellular domains engineered to potentially bind multiple powerful activating
receptors on the surface of the T cell, which we call “TIPs”. By expressing costimulatory TIPs on CAR-Ts or TCR-engineered T cells, a TIP-enabled product
could potentially increase the activity of infused CAR-T/ TCR cells and endogenous T cells present in the tumor environment—potentially causing enhanced
and/or more persistent responses to tumors via enhanced costimulatory (activating) signaling.

In October of 2015, Kite and Alpine entered into a research and license agreement pursuant to which we granted Kite an exclusive license to two of

our TIP programs, which Kite plans to further engineer into CAR and TCR product candidates. This agreement was extended in October 2017.

SIP Program

Our scientific platform is not restricted to transmembrane proteins expressed on the surface of engineered cell therapies in the TIP format. Infused

CAR-T or modified TCR T cells—or even oncolytic viruses—can also be potentially modified to express vIgD-based SIPs.

Potential applications include secretion of SIPs into the extracellular space to antagonize inhibitory receptor activity, which often restricts T cell

responses in the tumor environment. Cellular therapies can be engineered to express therapeutic molecules in the tumor environment, such as secreted
cytokines or modulators of both inhibitory and activating receptors. The potential result could be ECTs or oncolytic viruses capable of carrying their own
localized signals to modify the immune synapse with no need for combination use with expensive checkpoint monoclonal antibodies.

We believe SIPs are a promising approach to antagonize inhibitory receptors because of a SIP’s small size as well as the demonstrated ability of T

cells to express SIPs compared to monoclonal antibodies or antibody fragments.

13

 
 
Collaboration with Kite Pharma, a Gilead Company

In October 2015, we entered into an exclusive, worldwide license and research agreement with Kite to research, develop, and commercialize

autologous ECTs incorporating two programs from our TIP technology. The research term of this agreement was extended in October 2017.

Overview

Under the terms of the license and research agreement with Kite, we will conduct initial research to deliver two program TIPs with certain pre-defined
characteristics. Kite will then conduct further research on the program TIPs with the goal of demonstrating proof-of-concept. If successful, Kite would further
engineer the program TIPs into certain CAR-T and TCR product candidates to potentially enhance anti-tumor response.

Pursuant to the terms of the license and research agreement, we are responsible for conducting a research plan to deliver TIPs to two specified IgSF
targets. Kite is responsible for integrating the TIPs into their ECT constructs. Kite is also responsible for performing in vitro and in vivo studies of resulting
TIP/ECT therapeutics, manufacturing, and clinical trials.

Financial Terms

Under the terms of the agreement, Kite paid us a $5.0 million upfront payment plus $0.5 million in additional payments to support our research. These

amounts became non-refundable upon completion of a milestone in March 2016. We are eligible to receive an additional $0.5 million research support
payment payable by Kite in two tranches.  In addition, we remain eligible to receive up to $530.0 million in total milestone payments based upon the
successful completion of pre-specified research, clinical and regulatory milestones relating to both program TIPs. At Kite’s option, a portion of the milestone
payments may be paid in shares of Kite’s common stock. We will also be eligible to receive a low, single-digit percentage royalty for sales on a licensed-
product-by-licensed-product and country-by-country basis, until the later of (1) the date on which the licensed product is no longer covered by certain
intellectual property rights, and (2) the expiration of a defined term beginning on the first commercial sale of the licensed product. We also granted to Kite an
exclusive right of first negotiation to negotiate an exclusive, worldwide, sublicensable, royalty-bearing license, to practice and exploit any pharmaceutical or
biologic product containing certain allogeneic T cells developed for use as a therapy for cancer, which we refer to as the Allogeneic Products. In addition,
Kite has a one-time right of first refusal prior to our accepting any offer to license such Allogeneic Products on terms substantially similar to terms offered by
Kite.

Kite may terminate the agreement with prior written notice after expiration of the research term. Either party may also terminate the agreement upon
certain insolvency events of the other party, or with written notice upon material breach by the other party, if such breach has not been cured within a defined
period of receiving such notice. We may terminate the agreement with prior written notice if Kite or Kite’s affiliates or sublicensees challenge the validity,
enforceability or scope of any Alpine licensed patents.

Exclusivity

Kite has worldwide exclusive use of TIPs engineered to target two IgSF proteins chosen by Kite. The license exclusivity is limited to these targets

used as ECTs. We retain the right to develop or outlicense these two target families outside of ECTs as well as the right to develop or license any other IgSF
targets for use in ECTs.

Intellectual Property Related to Kite Transaction

Each party will each solely own any inventions, and patents claiming those inventions, generated and invented solely by such party, respectively,

subject to the exclusive licenses granted by us to Kite. Each party will jointly own any inventions, and patents claiming those inventions, generated or
invented by both parties pursuant to the activities conducted under the license and research agreement, subject to the exclusive licenses granted by us to Kite.

14

 
Our Strategy

Our goal is to create modern therapies targeting the immune synapse, using our directed- evolution based scientific platform to treat patients with

serious conditions such as cancer and inflammatory/autoimmune diseases. To achieve our goals, we intend to:

Aggressively move our lead inflammation/autoimmune program ALPN-101 to clinical trials for the treatment of autoimmune/inflammatory diseases.

ALPN-101 is an ICOS/CD28 dual antagonist vIgD fused to an effectorless Fc backbone. ALPN‑101 is based on the discovery, using our scientific

platform, of a single vIgD with increased binding affinity for both ICOS and CD28. Molecules in the ALPN-101 program have demonstrated activity in vitro
and in vivo in multiple models of disease. IND-enabling nonclinical and manufacturing efforts have started and we intend to apply for authorization in the
fourth quarter of 2018 to begin clinical trials. We currently plan to study ALPN-101 initially in healthy volunteers. We may subsequently study ALPN-101 in
patients with diseases such as GvHD, systemic lupus erythematosus, Sjögren’s syndrome, inflammatory myositis (e.g., polymyositis, dermatomyositis),
and/or arthritis.

Aggressively move our lead oncology program ALPN-202 to clinical trials.

Molecules in the ALPN-202 program are designed to antagonize PD-L1 and CTLA-4, while also providing tumor-localized CD28 agonism.

Molecules in the ALPN-202 program are thus potentially capable of blocking inhibitory signals from PD-L1 and CTLA-4 while providing CD28
costimulation. This is accomplished with a single vIgD fused to an effectorless Fc backbone. The ALPN-202 program is based on the discovery, using
directed evolution and our scientific platform, of a single domain capable of interacting with PD-L1, CD28, and CTLA-4. Molecules in the ALPN-202
program have demonstrated in vivo activity in a mouse model of PD-L1 positive tumors. We intend to file an IND in 2019 to begin clinical trials.

Maximize the value of our pipeline and platform via partnering activities.

We believe our scientific platform is highly productive, with affinity maturation campaigns often resulting in hundreds of potential hits producing

dozens of vIgDs with potentially desirable biologic activity. Our discovery efforts to date have resulted in vIgDs with potential uses in cancer,
autoimmune/inflammatory, and infectious disease. We believe this provides significant opportunity for partnering discussions. Our first such collaboration,
with Kite Pharma, involved two targets for use in ECTs and provided us $5.5 million in cash plus $530.0 million in potential developmental, clinical, and
regulatory milestone payments. While difficult to predict the timing of such partnerships or whether we will be successful in our efforts to enter into further
collaborations, we are continually in discussions with multiple potential partners ranging from small biotechnology firms to large pharmaceutical companies.

Product Pipeline

Figure 8

15

 
Lead inflammation/autoimmune program: ALPN-101, a Dual ICOS/CD28 vIgD-Fc Antagonist

Our lead autoimmune/inflammation program is comprised of a novel single domain vIgD binding both ICOS and CD28 at higher affinity than wild-

type molecules. This vIgD is fused to an effectorless Fc backbone and is intended for the potential treatment of certain inflammatory and autoimmune
conditions.

Inducible T cell Costimulator (“ICOS”) is part of the CD28 costimulatory family of molecules, including PD-1, CD28, and CTLA-4. ICOS is related
to CD28, but, in contrast, is poorly expressed in naïve T cells, and rapidly induced upon activation.2 It appears to be a dominant costimulatory pathway in at
least some effector or pathogenic T cells, particularly in the absence of CD28.3 Elevated levels of ICOS‑expressing T cells have been described in an
increasing number of inflammatory diseases, correlating with disease activity.4,5 Inhibition of ICOS is effective in several preclinical inflammatory disease
models. The ICOS pathway may therefore represent a major costimulatory pathway, nonredundant with CD28 and highly relevant to inflammatory diseases.

Cluster of Differentiation 28 (“CD28”) is the dominant costimulatory pathway in naïve, antigen-inexperienced T cells, and required for their
activation.6 However, optimal activation of activated and/or effector T cells often occurs independently of CD28.7 CD28 expression becomes progressively
reduced during activation in at least some T cell populations, and CD28-negative T cells have been observed in a growing number of autoimmune diseases,
often correlated with disease activity.8 Therapeutic agents directed against the CD28 pathway alone, such as abatacept, have proven only partially effective or
ineffective in some inflammatory diseases,9 and/or only induce only partial disease improvement in their approved indications.10 Therefore, an additional,
non-CD28, costimulatory pathway(s) likely participates in activated, effector T cells, and may be particularly relevant to inflammatory disease pathogenesis.
The known ligands for CD28 are CD80 and CD86. CD28 functions akin to a rheostat—the more CD28 signaling occurs, the faster and stronger the
subsequent immune response.

Few studies have examined the effect of therapeutic blockade of ICOS in humans, but early clinical trial findings with the anti-ICOSL mAb AMG-

55711 suggest inhibition of the ICOS pathway alone may also be insufficient to achieve complete efficacy in many inflammatory conditions.

ALPN-101 is designed to inhibit both the CD28 and ICOS pathways to potentially dampen an overactive immune response. Since it addresses
potential deficiencies of single pathway blockade, we hypothesize it to be capable of delivering deeper clinical responses by blockading two key T cell
costimulatory pathways with a single therapeutic. Using our scientific platform, we have potentially created a powerful dual ICOS/CD28antagonist with
significantly increased binding affinity for both ICOS and CD28 and capable of modulating both targets with a single domain.

2   Wikenheiser & Stumhofer, Frontiers in Immunology, v7 n304. August 2016
3   e.g. Wang et al. Journal of Immunology, v172 n10. May 2004, pp 5917-5923
4 e.g. Choi, et al. Arthritis and Rheumatology, v67 n4. March 2015 pp 988-999
5 e.g. Fonseca, et al. Arthritis and Rheumatology. (In press 10.1002/art.40424)
6   McKnight, et al. Journal of Immunology, v152 n11. June 1994, pp 5220-5225
7 Schweitzer & Sharpe, Journal of Immunology, v161 n6. September 1998, pp 2762-2771
8   Maly & Schirmer, Journal of Immunology Research, n348746. March 2015
9   e.g. Furie, et al, Arthritis & Rheumatology, v66 n2. January 2014, pp 379-389
10   e.g. Maxwell & Singh, Cochrane Database of Systematic Reviews, v2009 n4. October 2009
11   Cheng, et al. Annals of the Rheumatic Diseases, v76 n2. 2017 p. 151

16

 
Figure 9 is a graphical representation of ALPN-101 and the theorized mechanism of action in humans.

Figure 9

The left side of Figure 9 represents how the interaction typically works to activate T cells when they connect with antigen-presenting cells (“APCs”).

CD80/CD86 binds to CD28, and ICOSL binds to ICOS. The resulting costimulatory signal boosts T cell activity (press on the gas). In the case of autoimmune
disease and inflammation, this is unwanted activity.

The center of Figure 9 depicts two single ICOSL vIgDs engineered with our scientific platform, each capable of binding CD28 and ICOS. These

ICOSL vIgDs are fused to an effectorless Fc.

The right side of Figure 9 shows the goal of ALPN-101—specifically, to block the ability of CD80/CD86 and ICOSL to bind their respective
receptors. Put more simply, ALPN-101 seeks to block activating signals (release the gas pedal). When these powerful CD28 and ICOS costimulatory signals
are blocked, we believe unwanted immune system activity may be reduced to potentially help patients with inflammatory conditions. The versatility of this
therapeutic will potentially allow us to affect a number of different autoimmune/inflammatory diseases and different sets of refractory patient populations.

Notably, ALPN-101 is not a bispecific antibody construct. A traditional bispecific would be constructed of one domain binding ICOS and one domain

binding CD28. Instead, ALPN-101 makes use of a novel single domain engineered by our scientists using our proprietary scientific platform.

We have performed a number of pre-clinical experiments demonstrating molecules in the ALPN‑101 program are active in both in vitro (lab bench)

and in vivo (animal) models.

Novel Biology

The dual ICOS/CD28 antagonist vIgD at the core of the ALPN-101 program represents potentially novel biology. The mixed-lymphocyte reaction
(“MLR”) assay used in this test is an in vitro assay using real human immune system cells. The MLR assay helps gauge the relative immune activity of our
early discovery candidates. The data in Figure 10 below show

17

 
ALPN-101 is a much better inhibitor of T cell activity, as measured by interferon gamma (IFN-γ) than either belatacept or abatacept, two drugs approved for
autoimmune/inflammatory indications.

Figure 10

Superior Activity in Human Xenograft GvHD Model

Molecules in the ALPN-101 program were studied in an in vivo mouse model of Graft versus Host Disease (“GvHD”), a damaging and even

potentially fatal inflammatory disease most often brought about during stem cell and/or bone marrow transplant treatments for cancer or other serious
diseases. The results represented in Figure 11 show an ALPN-101 program molecule had superior survival (right panel) and a better Disease Activity Index
(left panel). Belatacept, an FDA-approved drug for prevention of renal allograft rejection (a type of inflammation-related rejection process analogous to
GvHD) is used as a comparison.

Figure 11

18

 
 
Arthritis Model

Figure 12 shows data from an in vivo collagen-induced arthritis model. This model is designed to test a drug’s ability to reduce the kinds of
inflammatory signals associated with rheumatoid arthritis and other types of inflammatory arthritis conditions. In this experiment, an early molecule in the
ALPN-101 program was superior in suppressing arthritic inflammation to abatacept, a drug approved by the FDA to treat rheumatoid and psoriatic arthritis. 

Summary of ALPN-101 Program Preclinical Data

Our scientists have demonstrated in preclinical studies molecules in the ALPN-101 program:

Figure 12

•

•

•

potently inhibit T cell activity;

improve the disease activity index and extend survival in an in vivo animal GvHD model with comparable activity to belatacept, an FDA-
approved drug for immunosuppression in renal transplantation with data in GvHD; and

reduce disease severity and delays onset time relative to control in a pilot in vivo arthritis model with activity superior to abatacept, an FDA-
approved drug for rheumatoid and psoriatic arthritis.

ALPN-101 Clinical Plans

Our goal is to file for regulatory authorization for our first ALPN-101 clinical trial in the fourth quarter of 2018. While subject to change, we expect

that the initial clinical study will involve cohorts of healthy volunteers who will receive single or multiple ascending doses of ALPN-101 to ascertain its
safety, pharmacokinetics, and pharmacodynamics (the biological effects of ALPN-101, as measured in the blood and/or other tissues)

ALPN-202 Program in Oncology

The ALPN-202 program is our lead program for immuno-oncology. Our scientists used wild‑type CD80 as the basis for a directed evolution campaign

using our proprietary scientific platform. They were able to create a number of interesting vIgDs, including a series capable of blocking PD-1 inhibition and
delivering costimulation via CD28. Some vIgDs from this campaign also have significant binding to CTLA-4, another inhibitory checkpoint IgSF.

19

 
 
 
 
Programmed cell death protein ligand 1 (“PD-L1”) and its counterstructure, PD-1, are responsible for suppressing immune system responses.
Cytotoxic T-lymphocyte Associated protein 4 (“CTLA-4”) also suppresses immune system responses. Both are IgSFs commonly referred to as checkpoint
proteins since they act as inhibitory checks against immune system activation, pressing the brakes on an immune reaction. As noted above, CD28 provides a
costimulatory signal necessary for T cell activation and survival. It is believed to be the most potent T cell costimulatory receptor of the immune system.

It has long been recognized CD28 is required for T cell activation and CD28 is the most important of the costimulatory molecules.12 The tumor

microenvironment often features exhausted T cells suppressed via PD-1/PD-L1 engagement as seen on the left of Figure 13 below. The development of anti
PD-1/L1 mAbs have helped relieve one aspect of the exhausted phenotype, but less than 30% of patients typically respond – likely attributable to the minority
of patients who do have sufficient CD28 costimulation as depicted in the center panel of Figure 13. More recent research has, in fact, shown CD28
costimulation is required for anti PD-1/L1 efficacy, absent which tumors do not respond due to inadequate costimulation as seen in the third panel of Figure
13.13 Therefore, there may be a need for a therapeutic providing both checkpoint antagonism and CD28 costimulation.

Figure 13

The goal of the ALPN-202 program is to create a therapeutic capable of blocking checkpoint inhibitor activity to take the brakes off the immune

system while providing for CD28 costimulation to step on the gas and increase immune system response. Among the potential therapeutic molecules in the
ALPN-202 program are those we believe have three modes of activity:

•

•

•

antagonize PD-L1 to inhibit immune responses;

agonize CD28 to increase immune response, but only in the presence of PD‑L1—a potential mechanism of action we call PD-L1 “dependent”
activity; and

antagonize CTLA-4 to decrease CTLA-4’s ability to inhibit immune response.

We believe we have one or more therapeutic candidates in the ALPN-202 program capable of this triple-action mechanism. This has been
accomplished with a single vIgD fused to an effectorless Fc backbone. The fact we have engineered a single vIgD to accomplish this, instead of relying on
multiple IgSF domains fused together, represents a potentially important scientific advance and emphasizes the potential power of our scientific platform to
create novel therapeutics. We are studying molecules in the ALPN-202 program using in vivo models to better understand their activity against tumors.

We will present additional data on the ALPN-202 program at scientific conferences over the coming year.

12 Krummel & Allison, Journal of Experimental Medicine, v182 n2. August 1995, pp 459-65
13 Kamphorst et al, Science, v355 n6332. March 2017, pp 1423-1427

20

 
 
 
 
ALPN-202 Program Clinical Plans

Our goal is to file for regulatory approval for our first ALPN-202 clinical trials in 2019. We have not yet determined which cancer indication or

indications we will investigate first.

Active Discovery Programs

We have a number of active discovery programs under way. In addition to active target research programs listed in Figure 14 below, we are working

on a number of undisclosed IgSF targets using our proprietary scientific platform.

In addition to ongoing target discovery work, we are pursuing preclinical development work on a number of undisclosed therapeutic programs plus

Figure 14

the following three discovery-stage programs.

Inhibitory Receptor Agonist (IRA) Program

A subset of IgSFs includes immune inhibitory or “checkpoint” receptors, such as PD-1, CTLA-4, TIGIT, LAG-3, and BTLA. These checkpoint

receptors reduce inflammation in several proposed ways, such as competing with activating ligands and/or initiating negative signaling within cells—
essentially putting the brakes on the immune system. They are thought to play critical roles in inflammation since genetic flaws affecting their activity have
been associated with many autoimmune and inflammatory conditions. Additionally, therapeutic interventions reducing or eliminating their activity result in
autoimmunity and/or inflammation in preclinical models.

Agonizing one or more of these checkpoint receptors, therefore, may be particularly effective in the treatment of multiple autoimmune/inflammatory

disorders. True inhibitory receptor agonists, however, appear to have been generally difficult to generate reliably in drug-like formats.

Traditional approaches to make inhibitory receptor agonists have included monoclonal antibodies mAb14 or ligand-Fc fusion biologics15, but to date,

no such agonists have been approved for clinical use.

14 Dixon, et. al. Journal of Immunology v200 n6, March 2018. In Press
15 Carter, et al. European Journal of Immunology v32 n3 February 2002, pp 634-643

21

 
 
Our proprietary scientific platform may provide a particularly unique and advantageous means to achieve inhibitory receptor agonism, since it is

based upon potently functional IgSF domains highly similar to naturally evolved checkpoint ligands. This potentially allows greater physiologic accessibility
to the immune synapse and the ability to modulate specific interactions therein. We are investigating the ability of appropriately engineered vIgD inhibitory
receptor agonists to target specifically pathogenic inflammatory cells, creating potent yet directed immunosuppressants.

Trastuzumab/ICOSL V-mAb Program

As noted above, one potential advantage of vIgDs is they can be formatted in a number of different ways. To demonstrate the ability of vIgDs to be
integrated into monoclonal antibodies—what we call V-mAbs—we advanced a development program to fuse a costimulatory ICOSL vIgD targeting ICOS
and CD28 with trastuzumab, a monoclonal antibody targeting HER2-neu, which is FDA-approved for treating HER2-positive breast and gastric cancers.

Figure 15 below shows a number of alternate ways to attach vIgDs to trastuzumab. While not all of the formats were equally easy to manufacture, all

variations shown were producible in sufficient quantities for in vitro testing.

Figure 15

In preclinical in vitro investigations, certain of the trastuzumab/ICOSL V-mAbs were able to retain binding to trastuzumab as well as their original

binding to ICOS and CD28. Additionally, molecules in the trastuzumab/ICOSL V-mAb program were able to stimulate human T cells in a manner thought to
be important for anti-tumor immunity, in the presence of HER2-positive tumor cells.

The goal of the V-mAb program is to use vIgDs to provide tumor-localized costimulation and/or tumor-localized checkpoint antagonism by using the

targeting capability of monoclonal antibodies.

22

 
Tumor-Localized vIgD Program

As noted above, multiple vIgDs can be fused together on an Fc backbone. There are some IgSF members more likely to be present on the surface of
tumors than anywhere else. We undertook a development program on one such IgSF, using it to localize an ICOS/CD28 dual costimulatory signal to tumor
cells. Figure 16 is a schematic for how localization could work.

This approach was tested using a pilot in vivo mouse model. The CT26 murine colon tumor model was transfected with the target IgSF and implanted

in mice. The vIgD-Fc created to target this IgSF was then given to the mice. Figure 17 below is a comparison of anti-tumor activity for the set of mice with
the largest tumors prior to dosing. When used in combination with an anti PD-1 monoclonal antibody, complete tumor control was shown. These data are
from a preliminary proof-of-concept molecule which, unlike molecules in the ALPN-202 program, work better in combination with anti PD-1 monoclonal
antibodies.

Figure 16

23

 
 
 
Figure 17

Manufacturing

We have established in-house recombinant protein generation capabilities for producing sufficient protein material to enable our scientific platform

process, validate new scientific discoveries, and enable our discovery in vivo programs as currently contemplated. Having protein production capabilities in-
house allows more rapid progression from yeast libraries to in vivo study results.

To date, generating our most promising leads—including our lead program ALPN-101 – has been accomplished through standard protein production
and purification methods. As noted above, we believe one advantage of our scientific platform is selection outputs are generally manufacturable. Because the
directed evolution process itself requires some level of protein production, second and third generation maturation campaigns usually select for proteins
readily expressed with favorable biochemical properties. We produce our vIgDs and vIgD-Fc constructs in mammalian cell lines using both HEK293 and
CHO cell expression systems in our in-house protein production processes.

We have not yet manufactured any of our proteins at commercial scale. Abatacept is a wild-type IgSF protein commercially approved for multiple

indications with no publicly-reported manufacturing difficulties. Belatacept is an IgSF protein with two mutations, likewise approved in multiple countries.
We believe these two examples are potentially similar (in manufacturing terms) to our vIgD-based products.

We have chosen a U.S.-based contract drug substance manufacturer for our initial clinical trial supplies of ALPN-101. We believe this contract
manufacturer’s particular expertise is in protein analytics and production, and it has the capability to meet rapid timelines encompassing the development of
production cell-lines to manufacturing of clinical trial quantities of the biopharmaceutical product.

Competition

We participate in the highly competitive sector of biotechnology and pharmaceuticals and in the subsector of immune modulation. This subsector has
undergone tremendous technological advancement over the last decade due to advancements in understanding the role of the immune system across multiple
therapeutic areas, including oncology and autoimmune/inflammatory disease. While we believe our novel technology platform, discovery programs,
knowledge, experience, and scientific resources offer competitive advantages, we face competition from major pharmaceutical and biotechnology companies,
academic institutions, governmental agencies, public and private research institutions, and others.

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Any products we successfully develop and commercialize will face competition from currently approved therapies and new therapies potentially available in
the future.

The availability of reimbursement from government and other third-party payors will also significantly affect the pricing and competitiveness of our
products. Our competitors also may obtain FDA or other regulatory approval for their products more rapidly than we may obtain approval for our products,
which could result in our competitors establishing a strong market position before we are able to enter the market.

Many of the companies we compete against may have significantly greater financial resources and expertise in research and development,

manufacturing, preclinical testing, conducting clinical trials, obtaining regulatory approvals, and marketing approved products. Smaller or early-stage
companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies. These
competitors also compete with us in recruiting and retaining qualified scientific and management personnel and establishing clinical trial sites and patient
registration for clinical trials, as well as in acquiring technologies complementary to, or necessary for, our programs.

Specifically, our competitors include companies developing therapies with the same target(s) as ALPN-101 and ALPN-202 as well as companies

building novel platforms to generate multi-specific antibody or non-antibody-based targeting proteins.

ICOSL/CD28 Competitors

The competitors listed below have programs targeting either ICOS or CD28 (or one of their counterstructures). To our knowledge, there are currently

no competitors with a single molecule targeting ICOS and CD28 simultaneously.

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an anti-ICOSL/B7RP-1 monoclonal antibody being developed by Amgen, Inc. (may be referred to as AMG557 or MEDI5872);

an anti-ICOS monoclonal antibody being developed by MedImmune, Inc. (MEDI570);

an anti-CD28 monoclonal antibody fragment being developed by OSE ImmunoTherapeutics SA and Johnson & Johnson Inc. (FR104);

a CTLA-4 selective for CD86 fusion protein being developed by Astellas Pharma Inc. (ASP 2408/09);

a CD28 superagonist monoclonal antibody being developed by TheraMab LLC (TAB08); and

an anti-BAFF, anti-ICOSL bispecific antibody being developed by Amgen, Inc (AMG/570/MEDI0700).

ALPN-202 program competitors

There are hundreds of clinical trials for immuno-oncology products used as a single agent or in combination. One of the potentially novel attributes of

the ALPN-202 program is how it targets multiple IgSFs with a single molecule and how it combines inhibitory receptor antagonism with activating
costimulation.

Other attempt to target multiple targets for immune-oncology are listed below. To our knowledge, there are currently no competitors with a single

molecule targeting PD-L1, CD28, and CTLA-4.

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a wild-type CD80 Fc being developed by Five Prime Therapeutics, Inc. (FPT155);

another wild-type CD80 molecule studied by University of Maryland Baltimore County;

bispecific monoclonal antibodies being developed by Xencor, Inc. including XmAb20717 targeting CTLA-4 and PD-1, XmAb22841 targeting
CTLA-4 and LAG-3, and XmAb23104 targeting PD-1 and ICOS;

bispecific constructs called “DARTs” being developed by Macrogenics Inc., including MGD013 targeting PD-1 and LAG-3 and MGD019
targeting PD-1 and CTLA-4;

bispecific monoclonal antibodies being developed by Tesoro, Inc., including targeting PD-1 and TIM3 or PD-1 and LAG-3;

small molecule antagonists being developed by Curis, Inc., including CA-170 targeting PD-L1 and VISTA and CA-327 targeting PD-L1 and
TIM-3;

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FS118, a bispecific monoclonal antibody targeting PD-1 and LAG-3 being developed by F-star Biotechnology, Ltd.; and

various combinations of separate anti PD-1/L1 and anti-CTLA-4 monoclonal antibodies.

Novel Platform Competitors

Platforms potentially competitive with our proprietary scientific platform include:

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Nanobody® (Ablynx NV), being purchased by Sanofi Pharma, Inc. : Platform technology of single-domain, heavy-chain antibody fragments
derived from camelidae (e.g., camels and llamas);

DART® (Macrogenics Inc): Dual-Affinity Re-Targeting and Trident technology platforms bind multiple targets with a single molecule;
Anticalin® (Pieris Pharmaceuticals Inc): Engineered proteins derived from natural lipocalins found in blood plasma; Targeted
Immunomodulation™ (Compass Therapeutics LLC): Antibody discovery targeting the tumor-immune synapse;

Harpoon Therapeutics Inc: Trispecific antigen-binding proteins;

various bispecific antibody platforms (e.g., Amgen Inc (BiTE®—approved), Roche AG (RG7828), Zymeworks Inc (Azymetric™), Xencor
Inc (XmAb Bispecific), Compass Therapeutics (StitchMabsTM));

Five Prime Therapeutics®: Proprietary protein library and rapid protein production and testing platform;

Regeneron®: VEGF Trap and VelociSuite® antibody technology platforms; and

Shattuck Labs®: Agonist Redirected Antibody platform claimed to bind tumor-necrosis factor (“TNF”) and checkpoint targets.

Intellectual Property

Our scientific platform and substantially all our intellectual property has been developed internally. As of December 31, 2017, our patent portfolio

consists of over 13 pending patent applications. Our initial patent application is directed to our scientific platform itself. Our second patent application is
directed to the TIP program. We filed subsequent patent applications directed to our SIP program as well as to various target domains under development. To
date, some of these applications have published but none have yet matured into granted patents. Each of these patent applications is solely owned by us. As
we continue the development of our scientific platform and target vIgDs, we intend to continue pursuing intellectual property protection for these
technologies.

We have in-licensed some intellectual property and trade secret materials on a non-exclusive basis. To date, such non-exclusive in-licenses are solely
related to commercially-available cell lines involved in the manufacture of our vIgD programs. To date, no other intellectual property related to our scientific
platform has been in-licensed.  We have out-licensed two programs under our TIP technology to Kite Pharma Inc. (a Gilead Company) on an exclusive basis.
No other out-licenses have been made.

Although we do not believe our technology infringes any intellectual property rights owned by third parties, we are aware of one or more patents and

patent applications that may relate to our technology. Third parties may assert claims against us alleging infringement of their intellectual property rights
regardless of whether their allegations have merit. Allegations of infringement could harm our reputation, may result in the expenditure of significant
resources to defend and resolve such allegations, and could require us to pay monetary damages if we are found to have infringed any third party intellectual
property rights.

Government Regulation

The FDA and comparable regulatory authorities in state and local jurisdictions and in other countries impose substantial and burdensome
requirements on the clinical development, manufacture, marketing, and distribution of therapeutic candidates. These agencies and other federal, state, and
local entities regulate research and development activities and the testing, manufacture, quality control, safety, effectiveness, labeling, storage, record keeping,
approval, advertising and promotion, and export and import of therapeutic candidates and products.

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In the U.S., the FDA regulates drugs, medical devices, and biologic products under the Federal Food, Drug, and Cosmetic Act, or FFDCA, its
implementing regulations and other laws, including, in the case of biologics, the Public Health Service Act. Our potential therapeutic candidates and products
will be subject to regulation by the FDA as biologics. Biologics require the submission of a Biologics License Application (“BLA”) and approval by the FDA
before being marketed in the U.S. None of our therapeutic candidates have been approved by the FDA for marketing in the U.S., and we currently have no
BLAs pending. If we fail to comply with applicable FDA or other requirements at any time during the product development process, clinical testing, the
approval process, or after approval, we may become subject to administrative or judicial sanctions. These sanctions could include the FDA’s refusal to
approve pending applications, license suspension or revocation, withdrawal of an approval, warning letters, product recalls, product seizures, total or partial
suspension of production or distribution, injunctions, fines, civil penalties, or criminal prosecution. Any FDA enforcement action could have a material
adverse effect on us. The process required by the FDA before biologic therapeutic candidates may be marketed in the U.S. generally involves the following:

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completion of extensive preclinical laboratory tests, preclinical animal studies, and formulation studies all performed in accordance with the
FDA’s current good laboratory practice (“cGLP”), regulations;

submission to the FDA of an IND application which must become effective before human clinical trials in the U.S. may begin;

performance of adequate and well-controlled human clinical trials to establish the safety and efficacy of the drug candidate for each proposed
indication;

submission to the FDA of a BLA;

satisfactory completion of an FDA inspection of the manufacturing facility or facilities at which the product is produced to assess compliance
with cGMP regulations; and

FDA review and approval of the BLA prior to any commercial marketing, sale, or shipment of the therapeutic product.

The testing and approval process requires substantial time, effort, and financial resources, and we cannot be certain any approvals for our therapeutic

candidates will be granted on a timely basis, if at all.

Once a therapeutic candidate is identified for development, it enters the preclinical testing stage. Preclinical studies include laboratory evaluations of

protein chemistry, formulation, and stability, as well as studies to evaluate toxicity in animals. The results of the preclinical studies, together with
manufacturing information and analytical data, are submitted to the FDA as part of an IND application. Currently, the IND automatically becomes effective
30 days after receipt by the FDA, unless the FDA, within the 30-day period, raises concerns or questions about the conduct of the clinical trial, including
concerns that human research subjects will be exposed to unreasonable health risks. In such a case, the IND sponsor and the FDA must resolve any
outstanding concerns before the clinical trial can begin. Submission of an IND may result in the FDA not allowing the clinical trials to commence or not
allowing the clinical trials to commence on the terms originally specified in the IND. A separate submission to an existing IND must also be made for each
successive clinical trial conducted during drug development, and the FDA must grant permission, either explicitly or implicitly by not objecting, before each
clinical trial can begin. We have not yet commenced clinical trials for any of our current therapeutic candidates.

Clinical trials involve the administration of the therapeutic candidate to human subjects under the supervision of qualified investigators. Clinical trials

are conducted under protocols detailing, among other things, the objectives of the clinical trial, the parameters to be used in monitoring safety, and the
effectiveness criteria to be used. Each protocol must be submitted to the FDA as part of the IND. For each medical center proposing to conduct a clinical trial
, an institutional review board (“IRB”) must also review and approve a plan for any clinical trial before it can begin at that center and the IRB must monitor
the clinical trial until it is completed. The FDA, an IRB, or the sponsor may suspend or discontinue a clinical trial at any time on various grounds, including a
finding the subjects are being exposed to an unacceptable health risk. Clinical testing also must satisfy extensive Good Clinical Practice requirements,
including the requirements for informed consent.

All clinical research performed in the U.S. in support of a BLA must be authorized in advance by the FDA under the IND regulations and procedures

described above. However, a sponsor who wishes to conduct a clinical trial outside the U.S. may, but need not, obtain FDA authorization to conduct the
clinical trial under an IND. If a foreign clinical trial is not conducted under an IND, the sponsor may submit data from the clinical trial to the FDA in support
of a BLA so long as the clinical trial is conducted in compliance with an international guideline for the ethical conduct of clinical research known as the
Declaration of Helsinki and/or the laws and regulations of the country or countries in which the clinical trial is performed, whichever provides the greater
protection to the participants in the clinical trial.

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Clinical Trials

For purposes of BLA submission and approval, clinical trials are typically conducted in three sequential phases, which may overlap or be combined.

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Phase I clinical trials are initially conducted in a limited population of subjects to test the therapeutic candidate for safety, dose tolerance,
absorption, metabolism, distribution, and excretion in healthy humans or, on occasion, in patients with severe problems or life-threatening
diseases to gain an early indication of its effectiveness.

Phase II clinical trials are generally conducted in a limited patient population to evaluate preliminarily the efficacy of the therapeutic candidate
for specific targeted indications in patients with the disease or condition under study; evaluate dosage tolerance and appropriate dosage; and
identify possible adverse effects and safety risks.

Phase III clinical trials are commonly definitive efficacy studies of the experimental medication. Phase III trials are typically conducted when
Phase II clinical trials demonstrate a dose range of the therapeutic candidate is effective and has an acceptable safety profile. Phase III clinical
trials are generally undertaken with large numbers of patients, such as groups of several hundred to several thousand, to provide substantial
evidence of clinical efficacy and to further test for safety in an expanded patient population at multiple, geographically-dispersed clinical trial
sites.

In some cases, the FDA may condition approval of a BLA on the sponsor’s agreement to conduct additional post-approval clinical trials to further

assess the biologic’s safety and effectiveness after BLA approval. Such post-approval clinical trials are typically referred to as Phase IV clinical trials.

Concurrent with clinical trials, companies usually complete additional animal trials and must also develop additional information about the chemistry

and physical characteristics of the biologic and finalize a process for manufacturing the biologic in commercial quantities in accordance with cGMP
requirements. The manufacturing process must be capable of consistently producing quality batches of the therapeutic candidate and, among other things, the
manufacturer must develop methods for testing the identity, strength, quality, and purity of the final biologic product. Additionally, appropriate packaging
must be selected and tested and stability studies must be conducted to demonstrate the therapeutic candidate does not undergo unacceptable deterioration over
its shelf life.

Biologics License Applications

The results of preclinical studies and of the clinical trials, together with other detailed information, including extensive manufacturing information and

information on the chemistry, pharmacology, clinical pharmacology, and the clinical effects of the biologic, are submitted to the FDA in the form of a BLA
requesting approval to market the biologic for one or more specified indications. The FDA reviews a BLA to determine, among other things, whether a
biologic is safe, pure, and potent and whether the facility in which the biological product is manufactured, processed, packed, or held meets standards
designed to assure the biological product continues to be safe, pure, and potent.

Once a BLA has been accepted for filing, by law the FDA will review the application and respond to the applicant but the review process may be

significantly delayed by FDA’s requests for additional information or clarification. Under the Prescription Drug User Fee Act, the FDA evaluates a standard
original BLA submission within the first 60 days of its receipt to determine if it is sufficiently complete to conduct a full review, and the FDA has a goal of
responding to the submission within ten months of the 60-day filing date, but this timeframe is often extended. The FDA may refer the application to an
advisory committee for review, evaluation, and/or recommendation as to whether the application should be approved. The FDA is not bound by the
recommendation of an advisory committee, but it generally follows such recommendations. The FDA may deny approval of a BLA if the applicable statutory
and regulatory criteria are not satisfied, or for any reason, or it may require additional clinical data. Even if such data are submitted, the FDA may ultimately
decide the BLA does not satisfy the criteria for approval. Data from clinical trials are not always conclusive and the FDA may interpret data differently than
we interpret data. Once the FDA approves a BLA, or supplement thereto, the FDA may withdraw the approval if ongoing regulatory requirements are not met
or if safety problems are identified after the biologic reaches the market. Where a withdrawal may not be appropriate, the FDA still may seize existing
inventory of such biologic or require a recall of any biologic already on the market. In addition, the FDA may require testing, including Phase IV clinical
trials and surveillance programs to monitor the effect of approved biologics which have been commercialized. The FDA has the authority to prevent or limit
further marketing of a biologic based on the results of these post-marketing programs.

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A sponsor may also seek approval of its therapeutic candidates under programs designed to accelerate FDA review and approval of BLAs. For

instance, a sponsor may seek FDA designation of a therapeutic candidate as a “fast track product.” Fast track products are those products intended for the
treatment of a serious or life- threatening disease or condition and which demonstrate the potential to address unmet medical needs for such diseases or
conditions. If fast track designation is obtained, the FDA may initiate review of sections of a BLA before the application is complete. This “rolling review” is
available if the applicant provides, and the FDA approves, a schedule for the remaining information. In some cases, a fast track product may be approved on
the basis of either a surrogate endpoint that is reasonably likely to predict clinical benefit, or on a clinical endpoint that can be measured earlier than
irreversible morbidity or mortality, that is reasonably likely to predict an effect on irreversible morbidity or mortality or other clinical benefit, taking into
account the severity, rarity, or prevalence of the condition and the availability or lack of alternative treatments, under the FDA’s accelerated approval program.
Approvals of this kind typically include requirements for appropriate post-approval confirmatory clinical trials to validate the surrogate endpoint or otherwise
confirm the effect of the clinical endpoint.

In addition, the Food and Drug Administration Safety and Innovation Act, (“FDASIA”) which was enacted and signed into law in 2012, established a

new category of drugs referred to as “breakthrough therapies” that may be subject to accelerated approval. A sponsor may seek FDA designation of a drug
candidate as a “breakthrough therapy” if the drug is intended, alone or in combination with one or more other drugs, to treat a serious or life- threatening
disease or condition and preliminary clinical evidence indicates the drug may demonstrate substantial improvement over existing therapies on one or more
clinically significant endpoints, such as substantial treatment effects observed early in clinical development.

Therapeutic candidates may also be eligible for “priority review,” or review within a six-month timeframe from the 60-day filing date, if a sponsor

provides sufficient clinical data demonstrating its therapeutic candidate provides a significant improvement compared to marketed products. Even if a
therapeutic candidate qualifies for one or more of these programs, the FDA may later decide the therapeutic candidate no longer meets the conditions for
qualification or that the period for FDA review or approval will be lengthened. When appropriate, we intend to seek fast track designation and/or accelerated
approval for our biologics. We cannot predict whether any of our therapeutic candidates will obtain a fast track and/or accelerated approval designation and, if
so, whether such designation will be maintained or rescinded by FDA, or the ultimate impact, if any, of the fast track or the accelerated approval process on
the timing or likelihood of FDA approval of any of our proposed biologics.

Biologics may be marketed only for the FDA approved indications and in accordance with the provisions of the approved labeling. Further, if there
are any modifications to the biologic, including changes in indications, labeling, or manufacturing processes, equipment, or facilities, the applicant may be
required to submit and obtain FDA approval of a new BLA or BLA supplement, which may require us to develop additional data or conduct additional
preclinical studies and clinical trials.

Before approving an application, the FDA will inspect the facility or the facilities at which the biologic product is manufactured, and will not approve

the product unless cGMP compliance is satisfactory. The FDA may also inspect the sites at which the clinical trials were conducted to assess their
compliance, and will not approve the biologic unless compliance with Good Clinical Practice requirements is satisfactory.

The testing and approval processes require substantial time, effort, and financial resources, and each may take several years to complete. The FDA

may not grant approval on a timely basis, or at all. Even if we believe a clinical trial has demonstrated safety and efficacy of one of our therapeutic candidates
for the treatment of a disease, the results may not be satisfactory to the FDA. Preclinical and clinical data may be interpreted by the FDA in different ways,
which could delay, limit, or prevent regulatory approval. We may encounter difficulties or unanticipated costs in our efforts to secure necessary governmental
approvals which could delay or preclude us from marketing our therapeutic candidates. The FDA may limit the indications for use or place other conditions
on any approvals restricting the commercial application of the products. After approval, certain changes to the approved biologic, such as adding new
indications, change in personnel, manufacturing changes, or additional labeling claims, are subject to further FDA review and approval. Depending on the
nature of the change proposed, a BLA supplement—which may require additional studies to evaluate the effect of such change on the identity, strength,
quality, purity, or potency of the product as they may relate to the safety or effectiveness of the product—must be filed and approved before the change may
be implemented. As with new BLAs, the review process for BLA supplements may be delayed by the FDA through requests for additional information or
clarification.

We believe any of our therapeutic products approved as a biological product under a BLA might qualify for a 12-year period of exclusivity currently

permitted by the Biologics Price Competition and Innovation Act (“BPCIA”). Specifically, the BPCIA established an abbreviated pathway for the approval of
biosimilar and interchangeable biological products. The new

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abbreviated regulatory pathway establishes legal authority for the FDA to review and approve biosimilar biologics, including the possible designation of a
biosimilar as “interchangeable” based on its similarity to an existing brand product. Under the BPCIA, an application for a biosimilar product cannot be
submitted by an applicant until four years after the date the reference product was first licensed and cannot be approved by the FDA until 12 years after the
original branded product was first licensed under a BLA. There is a risk the U.S. Congress could amend the BPCIA to significantly shorten this exclusivity
period or the FDA will not consider our therapeutic candidates to be reference products for competing products, potentially creating the opportunity for
competition sooner than anticipated. Moreover, the extent to which a biosimilar, once approved, will be substituted for any one of our reference products in a
way similar to traditional generic substitution for non-biological products is not yet clear, and will depend on a number of marketplace and regulatory factors
that are still developing. The BPCIA is complex and is only beginning to be interpreted and implemented by the FDA and the courts. As a result, its ultimate
impact, implementation, and meaning are subject to uncertainty. While it is uncertain when any such processes may be fully adopted by the FDA, any such
processes operating to limit the scope or length of exclusivity afforded by the BPCIA could have a material adverse effect on the future commercial prospects
for our biological products. In addition, foreign regulatory authorities may also provide for exclusivity periods for approved biological products or for
abbreviated pathways for follow on biological products. For example, biological products in Europe may be eligible for a 10-year period of exclusivity.

Under the Orphan Drug Act, the FDA may grant orphan drug designation to therapeutic candidates intended to treat a rare disease or condition, which
is generally a disease or condition affecting fewer than 200,000 individuals in the U.S. or more than 200,000 individuals in the U.S. and for which there is no
reasonable expectation the cost of developing and making available in the U.S. a therapeutic candidate for this type of disease or condition will be recovered
from sales in the U.S. for that therapeutic candidate. Orphan drug designation must be requested before submitting a marketing application for the therapeutic
for that particular rare disease or condition. After the FDA grants orphan drug designation, the identity of the therapeutic agent and its potential orphan use
are disclosed publicly by the FDA. Orphan drug designation does not convey any advantage in, or shorten the duration of, the regulatory review and approval
process. The FDA may revoke orphan drug designation, and if it does, it will publicize the drug is no longer designated as an orphan drug. If a therapeutic
candidate with orphan drug designation subsequently receives the first FDA approval for the disease for which it has such designation, the therapeutic
candidate is entitled to orphan product exclusivity, which means the FDA may not approve any other applications to market the same therapeutic candidate
for the same indication, except in very limited circumstances, for seven years. Orphan drug exclusivity, however, could also block the approval of one of our
therapeutic candidates for seven years if a competitor obtains approval of the same therapeutic candidate as defined by the FDA or if our therapeutic
candidate is determined to be contained within the competitor’s therapeutic candidate for the same indication or disease.

Under the Best Pharmaceuticals for Children Act, certain therapeutic candidates may obtain an additional six months of exclusivity if the sponsor

submits information requested in writing by the FDA, referred to as a “Written Request,” relating to the use of the active moiety of the therapeutic candidate
in children. The FDA may not issue a Written Request for studies on unapproved or approved indications where it determines information relating to the use
of a therapeutic candidate in a pediatric population, or part of the pediatric population, may not produce health benefits in that population. In addition, the
Pediatric Research Equity Act (“PREA”) requires a sponsor to conduct pediatric studies for most therapeutic candidates and biologics, for a new active
ingredient, new indication, new dosage form, new dosing regimen, or new route of administration. Under PREA, original NDAs, BLAs and supplements
thereto must contain a pediatric assessment unless the sponsor has received a deferral or waiver. The required assessment must assess the safety and
effectiveness of the therapeutic candidate for the claimed indications in all relevant pediatric subpopulations and support dosing and administration for each
pediatric subpopulation for which the therapeutic candidate is safe and effective. The sponsor or the FDA may request a deferral of pediatric studies for some
or all of the pediatric subpopulations. A deferral may be granted for several reasons, including a finding the drug or biologic is ready for approval for use in
adults before pediatric studies are complete or additional safety or effectiveness data needs to be collected before the pediatric studies begin. The FDA must
send a noncompliance letter to any sponsor failing to submit the required assessment, keep a deferral current, or fails to submit a request for approval of a
pediatric formulation.

Other Regulatory Requirements

Any biologics manufactured or distributed by us or our collaborators pursuant to FDA approvals would be subject to continuing regulation by the
FDA, including recordkeeping requirements and reporting of adverse experiences associated with the product. Manufacturers and their subcontractors are
required to register their establishments with the FDA and certain state agencies, and are subject to periodic unannounced inspections by the FDA and certain
state agencies for compliance with ongoing regulatory requirements, including cGMPs, which impose certain procedural and documentation requirements
upon us and third-party manufacturers. Failure to comply with the statutory and regulatory requirements can

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subject a manufacturer to possible legal or regulatory action, such as warning letters, suspension of manufacturing, seizure of product, injunctive action or
possible civil penalties. Our company cannot be certain it or its present or future third-party manufacturers or suppliers will be able to comply with the cGMP
regulations and other ongoing FDA regulatory requirements. If our company or its present or future third-party manufacturers or suppliers are not able to
comply with these requirements, the FDA may halt our clinical trials, require us to recall a drug from distribution, or withdraw approval of the BLA for the
therapeutic product.

The FDA closely regulates the post-approval marketing and promotion of biologics, including standards and regulations for direct-to-consumer

advertising, off-label promotion, industry-sponsored scientific and educational activities, and promotional activities involving the Internet. A company can
make only those claims relating to safety and efficacy approved by the FDA. Failure to comply with these requirements can result in adverse publicity,
warning letters, corrective advertising, and potential civil and criminal penalties. Physicians may prescribe legally available biologics for uses not described in
the product’s labeling and different from those tested by us and approved by the FDA. Such off-label uses are common across medical specialties. Physicians
may believe such off-label uses are the best treatment for many patients in varied circumstances. The FDA does not regulate the behavior of physicians in
their choice of treatments. The FDA does, however, impose stringent restrictions on manufacturers’ communications regarding off-label use.

Healthcare Reform

In March 2010, Congress passed the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act

(collectively, the “ACA”), a sweeping law intended to broaden access to health insurance, reduce or constrain the growth of health spending, enhance
remedies against fraud and abuse, add new transparency requirements for the healthcare and health insurance industries, impose new taxes and fees on the
health industry, and impose additional policy reforms. The ACA contains a number of provisions, including those governing enrollment in federal healthcare
programs, reimbursement changes, and fraud and abuse, impacting existing government healthcare programs and resulting in the development of new
programs, including Medicare payment for performance initiatives, and improvements to the physician quality reporting system and feedback program. The
Affordable Care Act also does, among other things, the following:

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Increases pharmaceutical manufacturer rebate liability under the Medicaid Drug Rebate Program due to an increase in the minimum basic
Medicaid rebate on most branded prescription drugs, and the application of Medicaid rebate liability to drugs used in risk-based Medicaid
managed care plans.

Expands the 340B Drug Pricing Program to require discounts for “covered outpatient drugs” sold to certain children’s hospitals, critical access
hospitals, freestanding cancer hospitals, rural referral centers, and sole community hospital.

Requires pharmaceutical companies to offer discounts on brand-name drugs to patients who fall within the Medicare Part D coverage gap,
commonly referred to as the “Donut Hole.”

Requires pharmaceutical companies to pay an annual non-tax-deductible fee to the federal government based on each company’s market share
of prior year total sales of branded drugs to certain federal healthcare programs, such as Medicare, Medicaid, Department of Veterans Affairs,
and Department of Defense.

Establishes the Independent Payment Advisory Board, which, since 2014, has had authority to recommend certain changes to the Medicare
program to reduce expenditures by the program when spending exceeds a certain growth rate and such changes could result in reduced
payments for prescription drugs. Under certain circumstances, these recommendations will become law unless Congress enacts legislation
achieving the same or greater Medicare cost savings. However, as of early 2018, the President has yet to nominate anyone to serve on the
board and there is legislation being proposed to repeal it.

Establishes the Patient-Centered Outcomes Research Institute to identify priorities in, and conduct comparative clinical effectiveness research,
along with funding for such research. The research conducted by the Patient-Centered Outcomes Research Institute may affect the market for
certain pharmaceutical products.

Establishes The Center for Medicare and Medicaid Innovation within the Centers for Medicare and Medicaid Services (“CMS”) to test
innovative payment and service delivery models to lower Medicare and Medicaid spending, potentially including prescription drug spending.
Funding has been allocated to support the mission of the Center for Medicare and Medicaid Innovation from 2011 to 2019.

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From time to time, legislation is drafted, introduced, and passed in Congress that could significantly change the statutory provisions governing the

sale, marketing, coverage, and reimbursement of products regulated by the CMS or other government agencies. In addition to new legislation, CMS
regulations and policies are often revised or interpreted by the agency in ways significantly affecting our business and our products.

In particular, we expect the Administration and Congress will continue to seek to modify, repeal, or otherwise invalidate all, or certain provisions of,

the U.S. healthcare reform legislation. Since taking office, President Trump has continued to support the repeal of all or portions of the ACA. President
Trump has also issued an executive order in which he stated it is his Administration’s policy to seek the repeal of the ACA and directed executive departments
and federal agencies to waive, defer, grant exemptions from, or delay the implementation of the provisions of the ACA to the maximum extent permitted by
law. There is still uncertainty with respect to the impact President Trump’s Administration and Congress may have, if any, and any changes will likely take
time to unfold. Such reforms could have an adverse effect on anticipated revenues from therapeutic candidates we may successfully develop and for which we
may obtain regulatory approval and may affect our overall financial condition and ability to develop therapeutic candidates. However, we cannot predict the
ultimate content, timing, or effect of any healthcare reform legislation or the impact of potential legislation on our company.

Furthermore, political, economic, and regulatory influences are subjecting the health care industry in the U.S. to fundamental change. Initiatives to

reduce the federal budget and debt and to reform health care coverage are increasing cost-containment efforts. We anticipate federal agencies, Congress, state
legislatures, and the private sector will continue to review and assess alternative health care benefits, controls on health care spending, and other fundamental
changes to the healthcare delivery system. Any proposed or actual changes could limit coverage for or the amounts federal and state governments will pay for
health care products and services, which could also result in reduced demand for our products or additional pricing pressures, and limit or eliminate our
spending on development projects and affect our ultimate profitability.

Third-Party Payor Coverage and Reimbursement

Significant uncertainty exists as to the coverage and reimbursement status of any products for which we may obtain regulatory approval. In the U.S.,

sales of any products for which we may receive regulatory approval for commercial sale will depend in part on the availability of coverage and
reimbursement from third- party payors. Third-party payors include government authorities such as Medicare, Medicaid, TRICARE, and the Veterans
Administration, managed care providers, private health insurers and other organizations.

The Medicaid Drug Rebate Program, which is part of the federal Medicaid program, a program for financially needy patients, among others, requires

pharmaceutical manufacturers to enter into and have in effect a national rebate agreement with the Secretary of the Department of Health and Human Services
as a condition for states to receive federal matching funds for the manufacturer’s outpatient drugs furnished to Medicaid patients.

In order for a pharmaceutical product to receive federal reimbursement under Medicare Part B, part of the federal Medicare program covering

outpatient items and services for the aged and disabled, and Medicaid programs or to be sold directly to U.S. government agencies, the manufacturer must
extend discounts to entities eligible to participate in the 340B drug pricing program, a federal program requiring manufacturers to provide discounts to certain
safety-net providers. The required 340B discount on a given product is calculated based upon certain Medicaid Drug Rebate Program metrics reported by the
manufacturer.

The process for determining whether a payor will provide coverage for a product is typically separate from the process for setting the reimbursement
rate a payor will pay for the product. Third-party payors may limit coverage to specific products on an approved list or formulary which might not include all
of the FDA-approved products for a particular indication. Also, third-party payors may refuse to include a particular branded product on their formularies or
otherwise restrict patient access to a branded drug when a less costly generic equivalent or other alternative is available. However, under Medicare Part D—
Medicare’s outpatient prescription drug benefit—there are protections in place to ensure coverage and reimbursement for oncology products and all Part D
prescription drug plans are required to cover substantially all anti-cancer agents. Furthermore, a payor’s decision to provide coverage for a product does not
imply an adequate reimbursement rate will be available. Adequate third-party reimbursement may not be available to enable us to maintain price levels
sufficient to realize an appropriate return on our investment in product development.

Third-party payors are increasingly challenging the price and examining the medical necessity and cost- effectiveness of medical products and

services, in addition to their safety and efficacy. In order to obtain coverage and reimbursement for any product approved for sale, we may need to pursue
compendia listings or conduct expensive pharmacoeconomic studies in

32

order to demonstrate the medical necessity and cost- effectiveness of any products, in addition to the costs required to obtain regulatory approvals. Our drug
candidates may not be considered medically necessary or cost-effective. If third-party payors do not consider a product to be cost-effective compared to other
available therapies, they may not cover an approved product as a benefit under their plans or, if they do, the level of payment may not be sufficient to allow a
company to sell its products at a profit.

Other Healthcare Laws and Regulations

If we obtain regulatory approval of our products, we may be subject to various federal and state laws targeting fraud and abuse in the healthcare

industry. These laws may impact, among other things, our proposed sales and marketing strategies. In addition, we may be subject to patient privacy
regulation by both the federal government and the states in which we conduct our business. The laws affecting our ability to operate include, but are not
limited to:

•

•

•

•

•

•

the federal Anti-Kickback Statute, which prohibits, among other things, persons from knowingly and willfully soliciting, receiving, offering,
or paying remuneration (a term interpreted broadly to include anything of value, including, for example, gifts, discounts, and credits), directly
or indirectly, in cash or in kind, to induce or reward, or in return for, either the referral of an individual for, or the purchase, order, or
recommendation of, an item or service reimbursable under a federal health care program, such as the Medicare and Medicaid programs;

federal civil and criminal false claims laws and civil monetary penalty laws, which prohibit, among other things, individuals or entities from
knowingly presenting, or causing to be presented, claims for payment to Medicare, Medicaid, or other third-party payors that are false or
fraudulent, or making a false statement or record material to payment of a false claim or avoiding, decreasing, or concealing an obligation to
pay money owed to the federal government;

provisions of HIPAA,  prohibiting knowingly and willfully executing a scheme to defraud any health care benefit program and making false
statements relating to health care matters;

provisions of HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act and its implementing
regulations, which imposes certain requirements relating to the privacy, security, and transmission of individually identifiable health
information;

the federal transparency laws, including the federal Physician Payment Sunshine Act, which was part of the Affordable Care Act, requiring
manufacturers of certain drugs and biologics to track and disclose payments and other transfers of value they make to U.S. physicians and
teaching hospitals, as well as physician ownership and investment interests in the manufacturer, which information is subsequently made
publicly available in a searchable format on a CMS website; and

state law equivalents of each of the above federal laws, such as anti-kickback and false claims laws which may apply to items or services
reimbursed by any third-party payor, including commercial insurers, state transparency reporting and compliance laws, and state laws
governing the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways
and may not have the same effect, thus complicating compliance efforts.

The ACA broadened the reach of the fraud and abuse laws by, among other things, amending the intent requirement of the federal Anti-Kickback

Statute and the applicable criminal healthcare fraud statutes contained within 42 U.S.C. § 1320a-7b. Pursuant to the statutory amendment, a person or entity
no longer needs to have actual knowledge of this statute or specific intent to violate it in order to have committed a violation. In addition, the ACA provides
the government may assert a claim including items or services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent
claim for purposes of the civil False Claims Act or the civil monetary penalties statute. Many states have adopted laws similar to the federal Anti-Kickback
Statute, some of which apply to the referral of patients for healthcare items or services reimbursed by any source, not only the Medicare and Medicaid
programs.

Employees

As of December 31, 2017, we had 38 employees, of which 29 are engaged in research and development activities. None of our employees are

represented by labor unions or covered by collective bargaining agreements. We consider our relationship with our employees to be good.

33

 
 
 
 
 
 
Facilities

We lease a facility containing our research and development, laboratory, and office space, which consists of approximately 11,158 square feet located

at 201 Elliott Avenue West, Seattle, Washington.

In January 2018, we entered into a lease amendment for approximately 6,184 square feet of additional office and laboratory space adjacent to our

existing leased premises in Seattle, Washington.

The lease expires on December 31, 2019 and has two options to extend the lease term with each option enabling us to extend the lease term by twelve

months.

Corporate Information

On July 24, 2017, Alpine Immune Sciences, Inc. completed its business combination with Nivalis Therapeutics, Inc., a publicly held company. In

connection with the merger, Nivalis Therapeutics, Inc. changed its name to Alpine Immune Sciences, Inc. For additional information regarding this business
combination, see Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Overview — Business
Combination with Nivalis” contained elsewhere in this Annual Report on Form 10-K. Nivalis Therapeutics, Inc. was incorporated in Delaware in March
2007.  Alpine Immune Sciences, Inc. (prior to its business combination with Nivalis Therapeutics, Inc.) was incorporated in Delaware on December 30, 2014.

Our principal executive office is located at 201 Elliott Avenue West, Suite 230, Seattle WA, 98119. Our telephone number is (206) 788-4545. Our

website is www.alpineimmunesciences.com. Information contained in, or that can be accessed through, our website is not a part of, and is not incorporated
into, this report.

This Annual Report on Form 10-K includes our trademarks and registered trademarks, including “vIgD” Each other trademark, trade name or service

mark appearing in this Annual Report on Form 10-K belongs to its holder.

Item 1A. Risk Factors.

You should carefully consider the following risk factors, in addition to the other information contained in this Annual Report on Form 10-K, including the
section of this report captioned “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and our consolidated financial
statements and related notes. If any of the events described in the following risk factors and the risks described elsewhere in this report occurs, our business,
operating results and financial condition could be seriously harmed. This report on Form 10-K also contains forward-looking statements that involve risks
and uncertainties. Our actual results could differ materially from those anticipated in the forward-looking statements as a result of factors that are described
below and elsewhere in this report.

Risks Related to Our Financial Position, Capital Needs and Business

We will need to raise substantial additional funds to advance development of our therapeutic candidates, and we cannot guarantee we will have sufficient
funds available in the future to develop and commercialize our current or future therapeutic candidates.

We will need to raise substantial additional funds to expand our development, regulatory, manufacturing, marketing, and sales capabilities or contract

with other organizations to provide these capabilities to us. We have used substantial funds to develop our therapeutic candidates and will require significant
funds to conduct further research and development, preclinical testing, and clinical trials of our therapeutic candidates, to seek regulatory approvals for our
therapeutic candidates, and to manufacture and market products, if any are approved for commercial sale. As of December 31, 2017, we had $81.2 million in
cash, cash equivalents and short-term investments. Based on our current operating plan, we believe our available cash and cash equivalents, will be sufficient
to fund our planned level of operations for at least the next 12 months. Our future capital requirements and the period for which we expect our existing
resources to support our operations may vary significantly from what we expect. Our monthly spending levels vary based on new and ongoing development
and corporate activities. Because the length of time and activities associated with successful development of our therapeutic candidates are highly uncertain,
we are unable to estimate the actual funds we will require for development and any approved marketing and commercialization activities. To execute our
business plan, we will need, among other things:

•

to obtain the human and financial resources necessary to develop, test, obtain regulatory approval for, manufacture, and market our therapeutic
candidates;

34

 
•

•

•

•

•

•

•

•

to build and maintain a strong intellectual property portfolio and avoid infringing intellectual property of third parties;

to establish and maintain successful licenses, collaborations, and alliances;

to satisfy the requirements of clinical trial protocols, including patient enrollment;

to establish and demonstrate the clinical efficacy and safety of our therapeutic candidates;

to obtain regulatory approvals;

to manage our spending as costs and expenses increase due to preclinical studies, clinical trials, regulatory approvals, manufacturing scale-up,
and commercialization;

to obtain additional capital to support and expand our operations; and

to market our products to achieve acceptance and use by the medical community in general.

If we are unable to obtain necessary funding on a timely basis or on acceptable terms, we may have to delay, reduce, or terminate our research and
development programs, preclinical studies, or clinical trials, if any, limit strategic opportunities, or undergo reductions in our workforce or other corporate
restructuring activities. We also could be required to seek funds through arrangements with collaborators or others requiring us to relinquish rights to some of
our technologies or therapeutic candidates we would otherwise pursue on our own. We do not expect to realize revenue from product sales or royalties in the
foreseeable future, if at all. Our revenue sources are, and will remain, extremely limited unless and until our therapeutic candidates are clinically tested,
approved for commercialization, and successfully marketed.

To date, we have financed our operations primarily through the sale of equity securities and payments received under our license and research

agreement with Kite, a Gilead company. We will be required to seek additional funding in the future and intend to do so through a combination of public or
private equity offerings, debt financings, credit and loan facilities, research collaborations, and license agreements. Our ability to raise additional funds from
these or other sources will depend on financial, economic, and other factors, many of which are beyond our control. Additional funds may not be available to
us on acceptable terms or at all.

If we raise additional funds by issuing equity securities, our stockholders will suffer dilution, and the terms of any financing may adversely affect the

rights of our stockholders. For example, in July 2016, we entered into a sales agreement with Cowen and Company, LLC, or Cowen, to sell up to $30.0
million worth of shares of our common stock, from time to time, through an “at the market” equity offering program under which Cowen will act as sales
agent. In addition, as a condition to providing additional funds to us, future investors may demand, and may be granted, rights superior to those of existing
stockholders. Debt financing, if available, may involve restrictive covenants limiting our flexibility in conducting future business activities, and, in the event
of a liquidation or insolvency, debt holders would be repaid before holders of equity securities receive any distribution of corporate assets. Our failure to raise
capital or enter into such other arrangements within a reasonable timeframe would have a negative impact on our financial condition, and we may have to
delay, reduce, or terminate our research and development programs, preclinical or clinical trials, or undergo reductions in our workforce or other corporate
restructuring activities.

We are an early stage biopharmaceutical company with a history of losses, we expect to continue to incur significant losses for the foreseeable future, and
we may never achieve or maintain profitability and we have a limited operating history that may make it difficult for investors to evaluate the potential
success of our business.

We are a development-stage immunotherapy company, with a limited operating history, focused on developing treatments for

autoimmune/inflammatory diseases and cancer. Since inception, we have devoted our resources to developing novel protein-based immunotherapies using
our proprietary scientific platform technology, which produces variant Ig domains or vIgDs. We have had significant operating losses since inception. For
2017, our net loss was $7.8 million. Substantially all of our losses have resulted from expenses incurred in connection with our research programs and from
general and administrative costs associated with our operations. Our technologies and therapeutic candidates are in early stages of development, and we are
subject to the risks of failure inherent in the development of therapeutic candidates based on novel technologies.

We have historically generated revenue primarily from the receipt of research funding and upfront payments under our license and research

agreement with Kite. We have not generated, and do not expect to generate, any revenue from product sales for the foreseeable future, and we expect to
continue to incur significant operating losses for the foreseeable future due

35

 
 
 
 
 
 
 
 
to the cost of research and development, preclinical studies, clinical trials, and the regulatory approval process for therapeutic candidates. The amount of
future losses is uncertain. Our ability to achieve profitability, if ever, will depend on, among other things, our or our existing collaborators, or any future
collaborators, successfully developing therapeutic candidates, obtaining regulatory approvals to market and commercialize therapeutic candidates,
manufacturing any approved products on commercially reasonable terms, establishing a sales and marketing organization or suitable third party alternatives
for any approved product, and raising sufficient funds to finance business activities. If we or our existing collaborators, or any future collaborators, are unable
to develop and commercialize one or more of our therapeutic candidates or if sales revenue from any therapeutic candidate receiving approval is insufficient,
we will not achieve profitability, which could have a material adverse effect on our business, financial condition, results of operations, and prospects.

Our approach to the discovery and development of innovative therapeutic treatments based on our technology is unproven and may not result in
marketable products.

We plan to develop novel protein-based immunotherapies using our proprietary vIgD technology for the treatment of cancer and

autoimmune/inflammatory diseases. The potential to create therapies capable of working within and/or modulating an immune synapse, forcing a synapse to
occur, or preventing a synapse from occurring is an important, novel attribute of our vIgDs. However, the scientific research forming the basis of our efforts to
develop therapeutic candidates based on our platform is relatively new. Further, the scientific evidence to support the feasibility of developing therapeutic
treatments based on our vIgDs is both preliminary and limited.

Relatively few therapeutic candidates based on immunoglobulin superfamily, or IgSF, domains have been tested in animals or humans, and a number

of clinical trials conducted by other companies using IgSF domains technologies have not been successful. We may discover the therapeutic candidates
developed using our scientific platform do not possess certain properties required for the therapeutic to be effective, such as the ability to remain stable or
active in the human body for the period of time required for the therapeutic to reach the target tissue and/or cell. We currently have only limited data, and no
conclusive evidence, to suggest we can introduce these necessary therapeutic properties into vIgDs. We may spend substantial funds attempting to introduce
these properties and may never succeed in doing so. In addition, vIgDs may demonstrate different chemical and pharmacological properties in human
subjects or patients than they do in laboratory studies. Even if our programs, such as the ALPN-101 program, have successful results in animal studies, they
may not demonstrate the same chemical and pharmacological properties in humans and may interact with human biological systems in unforeseen,
ineffective, or harmful ways. For example, in the context of immunotherapies, in a Phase I clinical trial of TeGenero AG’s product candidate TGN1412,
healthy volunteer subjects receiving the product candidate experienced a systemic inflammatory response resulting in renal and pulmonary failure requiring
interventions such as dialysis and critical care support. Following this experience, regulatory agencies now ask for evaluation of immunomodulatory
antibodies with a number of in vitro assays with human cells. While we are currently performing in vitro and in vivo proof of concept studies for several of
our vIgDs preclinically, the risk profile in humans has yet to be assessed. As a result, we may never succeed in developing a marketable therapeutic, we may
not become profitable, and the value of our common stock will decline.

Further, we believe that the FDA has no prior experience with vIgDs and no regulatory authority has granted approval to any person or entity,

including our company, to market and commercialize therapeutics using vIgDs, which may increase the complexity, uncertainty, and length of the regulatory
approval process for our therapeutic candidates. Our company and our current collaborators, or any future collaborators, may never receive approval to
market and commercialize any therapeutic candidate. Even if our company or a collaborator obtains regulatory approval, the approval may be for disease
indications or patient populations not as broad as we intended or desired or may require labeling, including significant use or distribution restrictions or safety
warnings. Our company or a collaborator may be required to perform additional or unanticipated clinical trials to obtain approval or be subject to post-
marketing testing requirements to maintain regulatory approval. If therapeutic candidates we develop using our scientific platform prove to be ineffective,
unsafe, or commercially unviable, our entire platform and pipeline would have little, if any, value, which could have a material adverse effect on our
business, financial condition, results of operations, and prospects.

The market may not be receptive to our therapeutic products based on a novel therapeutic modality, and we may not generate any future revenue from the
sale or licensing of therapeutic products.

Even if approval is obtained for a therapeutic candidate, we may not generate or sustain revenue from sales of the therapeutic product due to factors

such as whether the therapeutic product can be sold at a competitive price and otherwise accepted in the market. Therefore, any revenue from sales of the
therapeutic product may not offset the costs of development. The therapeutic candidates we are developing are based on new technologies and therapeutic
approaches. Market participants with significant influence over acceptance of new treatments, such as physicians and third-party payors, may not adopt a

36

treatment based on our vIgDs, and we may not be able to convince the medical community and third-party payors to accept and use, or to provide favorable
coverage or reimbursement for, any therapeutic products developed by our company, our existing collaborator, or any future collaborators. Market acceptance
of our therapeutic products will depend on, among other factors:

•

•

•

•

•

•

•

•

•

•

•

•

•

the timing of our receipt of any marketing and commercialization approvals;

the terms of any approvals and the countries in which approvals are obtained;

the safety and efficacy of our therapeutic products;

the prevalence and severity of any adverse side effects associated with our therapeutic products;

the prevalence and severity of any adverse side effects associated with therapeutics of the same type or class as our therapeutic products;

limitations or warnings contained in any labeling approved by the FDA or other regulatory authority;

relative convenience and ease of administration of our therapeutic products;

the willingness of patients to accept any new methods of administration;

the success of our physician education programs;

the availability of adequate government and third-party payor coverage and reimbursement;

the pricing of our products, particularly as compared to alternative treatments;

our ability to compliantly market and sell our products; and

availability of alternative effective treatments for the disease indications our therapeutic products are intended to treat and the relative risks,
benefits, and costs of those treatments.

With our focus on engineering wild-type IgSFs proteins, these risks may increase to the extent this field becomes more competitive or less favored in
the commercial marketplace. Additional risks apply in relation to any disease indications we pursue which are classified as rare diseases and allow for orphan
drug designation by regulatory agencies in major commercial markets, such as the United States, European Union, and Japan. Because of the small patient
population for a rare disease, if pricing is not approved or accepted in the market at an appropriate level for an approved therapeutic product with orphan drug
designation, such drug may not generate enough revenue to offset costs of development, manufacturing, marketing, and commercialization despite any
benefits received from the orphan drug designation, such as market exclusivity, assistance in clinical trial design, or a reduction in user fees or tax credits
related to development expense. Market size is also a variable in disease indications not classified as rare. Our estimates regarding potential market size for
any rare indication may be materially different from what we discover to exist at the time we commence commercialization, if any, for a therapeutic product,
which could result in significant changes in our business plan and have a material adverse effect on our business, financial condition, results of operations,
and prospects.

If a therapeutic product with orphan drug designation subsequently receives the first FDA approval for the indication for which it has such
designation, the therapeutic product is entitled to orphan product exclusivity, which means the FDA may not approve any other applications to market the
same therapeutic product for the same indication, except in very limited circumstances, for seven years. Orphan drug exclusivity, however, could also block
the approval of one of our therapeutic products for seven years if a competitor obtains approval of the same therapeutic product as defined by the FDA or if
our therapeutic product is determined to be within the same class as the competitor’s therapeutic product for the same indication or disease.

As in the United States, we may apply for designation of a therapeutic product as an orphan drug for the treatment of a specific indication in the

European Union before the application for marketing authorization is made. Sponsors of orphan drugs in the European Union can enjoy economic and
marketing benefits, including up to ten years of market exclusivity for the approved indication unless another applicant can show its therapeutic product is
safer, more effective, or otherwise clinically superior to the orphan-designated therapeutic product. The respective orphan designation and exclusivity
frameworks in the United States and in the European Union are subject to change, and any such changes may affect our ability to obtain EU or U.S. orphan
designations in the future.

37

 
 
 
 
 
 
 
 
 
 
 
 
 
Our therapeutic candidates are in early stages of development and may fail in development or suffer delays that materially and adversely affect their
commercial viability.

We have no products on the market and all of our therapeutic candidates are in early stages of development. Our ability to achieve and sustain

profitability depends on obtaining Institutional Review Board, or IRB, approval to conduct clinical trials at particular sites, regulatory approvals and
successfully commercializing our therapeutic candidates, either alone or with third parties, such as our collaborator Kite. Before obtaining regulatory
approval for the commercial distribution of our therapeutic candidates, we or a collaborator must conduct extensive preclinical tests and clinical trials to
demonstrate the safety and efficacy in humans of our therapeutic candidates. Preclinical testing and clinical trials are expensive, difficult to design and
implement, can take many years to complete, and are uncertain as to outcome. The start or end of a clinical study is often delayed or halted due to changing
regulatory requirements, manufacturing challenges, required clinical trial administrative actions, slower than anticipated patient enrollment, changing
standards of care, availability or prevalence of use of a comparative therapeutic or required prior therapy, clinical outcomes, or financial constraints. For
instance, delays or difficulties in patient enrollment or difficulties in retaining trial participants can result in increased costs, longer development times, or
termination of a clinical trial. Clinical trials of a new therapeutic candidate require the enrollment of a sufficient number of patients, including patients who
are suffering from the disease the therapeutic candidate is intended to treat and who meet other eligibility criteria. Rates of patient enrollment are affected by
many factors, including the size of the patient population, the eligibility criteria for the clinical trial, the age and condition of the patients, the stage and
severity of disease, the nature of the protocol, the proximity of patients to clinical sites, and the availability of effective treatments for the relevant disease.

A therapeutic candidate can unexpectedly fail at any stage of preclinical and clinical development. The historical failure rate for therapeutic
candidates is high due to scientific feasibility, safety, efficacy, changing standards of medical care, and other variables. The novelty of our platform may mean
our failure rates are higher than historical norms. The results from preclinical testing or early clinical trials of a therapeutic candidate may not predict the
outcome of later phase clinical trials of the therapeutic candidate, particularly in immuno-oncology and autoimmune/inflammatory disorders. We, the FDA,
an IRB, an independent ethics committee, or other applicable regulatory authorities may suspend clinical trials of a therapeutic candidate at any time for
various reasons, including a belief that subjects participating in such trials are being exposed to unacceptable health risks or adverse side effects. Similarly, an
IRB or ethics committee may suspend a clinical trial at a particular trial site. We may not have the financial resources to continue development of, or to enter
into collaborations for, a therapeutic candidate if we experience any problems or other unforeseen events delaying or preventing regulatory approval of, or
our ability to commercialize, therapeutic candidates, including:

•

•

•

•

•

•

•

•

•

•

•

negative or inconclusive results from our clinical trials, or the clinical trials of others for therapeutic candidates similar to ours, leading to a
decision or requirement to conduct additional preclinical testing or clinical trials or abandon a program;

serious and unexpected drug-related side effects experienced by participants in our clinical trials or by individuals using therapeutics similar to
our therapeutic candidates;

serious drug-related side effects experienced in the past by individuals using therapeutics similar to our therapeutic candidates;

delays in submitting Investigational New Drug, or IND, applications or clinical trial applications, or comparable foreign applications, or
delays or failure in obtaining the necessary approvals from regulators or IRBs to commence a clinical trial, or a suspension or termination of a
clinical trial once commenced;

conditions imposed by the FDA or comparable foreign authorities, such as the European Medicines Agency, or EMA, regarding the scope or
design of our clinical trials;

delays in enrolling research subjects in clinical trials;

high drop-out rates of research subjects;

inadequate supply or quality of therapeutic product or therapeutic candidate components, or materials or other supplies necessary for the
conduct of our clinical trials, including those owned, manufactured, or provided by companies other than ours;

greater than anticipated clinical trial costs, including the cost of any approved drugs used in combination with our therapeutic candidates;

poor effectiveness of our therapeutic candidates during clinical trials;

unfavorable FDA or other regulatory agency inspection and review of a clinical trial site;

38

 
 
 
 
 
 
 
 
 
 
 
•

•

•

failure of our third-party contractors or investigators to comply with regulatory requirements or otherwise meet their contractual obligations in
a timely manner, or at all;

delays and changes in regulatory requirements, policies, and guidelines, including the imposition of additional regulatory oversight around
clinical testing generally or with respect to our technology in particular; or

varying interpretations of data by the FDA and similar foreign regulatory agencies.

Product development involves a lengthy and expensive process with an uncertain outcome, and results of earlier pre-clinical and clinical trials may not
be predictive of future clinical trial results.

Clinical testing is expensive and generally takes many years to complete, and the outcome is inherently uncertain. Failure can occur at any time
during the clinical trial process. The results of pre-clinical trials and early clinical trials of our product candidates may not be predictive of the results of
larger, later-stage controlled clinical trials. Product candidates showing promising results in early-stage clinical trials may still suffer significant setbacks in
subsequent clinical trials. We have conducted no clinical trials to date. We will have to conduct trials in our proposed indications to verify the results obtained
to date and to support any regulatory submissions for further clinical development. A number of companies in the biopharmaceutical industry have suffered
significant setbacks in advanced clinical trials due to lack of efficacy or adverse safety profiles despite promising results in earlier, smaller clinical trials.
Moreover, clinical data are often susceptible to varying interpretations and analyses. We do not know whether Phase 1, Phase 2, Phase 3, or other clinical
trials we may conduct will demonstrate consistent or adequate efficacy and safety with respect to the proposed indication for use sufficient to receive
regulatory approval or market our therapeutic candidates.

To date, our revenue has been primarily derived from our license and research agreement with Kite, and we are dependent on Kite for the successful
development of therapeutic candidates in the collaboration.

In October 2015, we entered into an exclusive, worldwide license and research agreement with Kite to research, develop, and commercialize

engineered autologous T cell therapies incorporating two programs from our technology. Pursuant to the license and research agreement, we will be
potentially eligible to receive up to $530.0 million in total milestone payments upon the successful completion of research, clinical, and regulatory
milestones. We will also potentially be eligible to receive a low single-digit percentage royalty for sales on a licensed product-by-licensed product and
country-by-country basis.

Continued success of our collaboration with Kite, and our realization of the milestone and royalty payments under the agreement, depends upon the
efforts of Kite. Kite has sole discretion in determining and directing the efforts and resources, including the ability to discontinue all efforts and resources, it
applies to the development and, if approval is obtained, commercialization and marketing of the therapeutic candidates covered by the collaboration. Kite
may not be effective in obtaining approvals for the therapeutic candidates developed under the collaboration arrangement or marketing or arranging for
necessary supply, manufacturing, or distribution relationships for any approved products. Kite may change its strategic focus or pursue alternative
technologies in a manner resulting in reduced, delayed, or no revenue to us. Kite has a variety of marketed products and its own corporate objectives and
strategies may not be consistent with our best interests. If Kite fails to develop, obtain regulatory approval for, or ultimately commercialize any therapeutic
candidate under the collaboration or if Kite terminates the collaboration, our business, financial condition, results of operations, and prospects could be
materially and adversely affected. In addition, any dispute or litigation proceedings we may have with Kite in the future could delay development programs,
create uncertainty as to ownership of intellectual property rights, distract management from other business activities and generate substantial expense.

If we are unable to secure intellectual property rights to programs covered under the license and research agreement, Kite may terminate the

agreement and our business, financial condition, results of operations, and prospects could be materially and adversely affected. In addition, any dispute or
litigation proceedings we may have with Kite related to intellectual property rights or other aspects of the agreement or the relationship could delay
development programs, create uncertainty as to ownership of intellectual property rights, may distract management from other business activities and
generate substantial expense.

In October 2017, Kite was acquired by Gilead Pharma, Inc., or Gilead. While the research term of the collaboration was extended after the closing of
the acquisition, there is no guarantee Gilead will place the same emphasis on the collaboration or wish to continue the collaboration. If either of these occurs,
our business, financial condition, results of operations, and prospects could be materially and adversely affected.

39

 
 
 
If third parties on which we depend to conduct our preclinical studies, or any future clinical trials, do not perform as expected, fail to satisfy regulatory or
legal requirements, or miss expected deadlines, our development program could be delayed, which may result in materially adverse effects on our
business, financial condition, results of operations, and prospects.

We rely, in part, on third party clinical investigators, contract research organizations, or CROs, clinical data management organizations, and
consultants to design, conduct, supervise, and monitor preclinical studies of our therapeutic candidates and may do the same for any clinical trials. Because
we rely on third parties to conduct preclinical studies or clinical trials, we have less control over the timing, quality, compliance, and other aspects of
preclinical studies and clinical trials than we would if we conducted all preclinical studies and clinical trials on our own. These investigators, CROs, and
consultants are not our employees and we have limited control over the amount of time and resources they dedicate to our programs. These third parties may
have contractual relationships with other entities, some of which may be our competitors, which may draw their time and resources away from our programs.
The third parties with which we contract might not be diligent, careful, compliant, or timely in conducting our preclinical studies or clinical trials, resulting in
the preclinical studies or clinical trials being delayed or unsuccessful.

If we cannot contract with acceptable third parties on commercially reasonable terms, or at all, or if these third parties do not carry out their expected

duties, satisfy legal and regulatory requirements for the conduct of preclinical studies or clinical trials, or meet expected deadlines, our clinical development
programs could be delayed and otherwise adversely affected. In all events, we are responsible for ensuring each of our preclinical studies and clinical trials is
conducted in accordance with the general investigational plan and protocols for the trial. The FDA and certain foreign regulatory authorities, such as the
EMA, require preclinical studies to be conducted in accordance with applicable Good Laboratory Practices, or GLPs, and clinical trials to be conducted in
accordance with applicable FDA regulations and Good Clinical Practices, or GCPs, including requirements for conducting, recording, and reporting the
results of preclinical studies and clinical trials to assure data and reported results are credible and accurate and the rights, integrity, and confidentiality of
clinical trial participants are protected. Our reliance on third parties we do not control does not relieve us of these responsibilities and requirements. Any such
event could have a material adverse effect on our business, financial condition, results of operations, and prospects.

Because we rely on third party manufacturing and supply partners, our supply of clinical trial materials may become limited or interrupted or may not be
of satisfactory quantity or quality.

We have established in-house recombinant protein generation capabilities for producing sufficient protein materials to enable a portion of our current
preclinical studies. We rely on third party supply and manufacturing partners to supply the materials, components, and manufacturing services for a portion of
preclinical studies and all our clinical trial drug supplies. We do not own manufacturing facilities or supply sources for such components and materials for
clinical trial supplies and our current manufacturing facilities are insufficient to supply such components and materials for all of our preclinical studies.
Certain raw materials necessary for the manufacture of our therapeutic products, such as cell lines, are available from a single or limited number of source
suppliers on a purchase order basis. There can be no assurance our supply of research and development, preclinical study, and clinical trial drugs and other
materials will not be limited, interrupted, restricted in certain geographic regions, of satisfactory quality or quantity, or continue to be available at acceptable
prices. In particular, any replacement of our therapeutic substance manufacturer could require significant effort and expertise and could result in significant
delay of our preclinical or clinical activities because there may be a limited number of qualified replacements.

The manufacturing process for a therapeutic candidate is subject to FDA and foreign regulatory authority review. Suppliers and manufacturers must
meet applicable manufacturing requirements and undergo rigorous facility and process validation tests required by regulatory authorities in order to comply
with regulatory standards, such as cGMPs. In the event any of our suppliers or manufacturers fails to comply with such requirements or to perform its
obligations to us in relation to quality, timing, or otherwise, or if our supply of components or other materials becomes limited or interrupted for other
reasons, we may experience shortages resulting in delayed shipments, supply constraints, and/or stock-outs of our products, be forced to manufacture the
materials alone, for which we currently does not have the capabilities or resources, or enter into an agreement with another third party, which we may not be
able to do on reasonable terms, if at all. In some cases, the technical skills or technology required to manufacture our therapeutic candidates may be unique or
proprietary to the original manufacturer and we may have difficulty, or there may be contractual and intellectual property restrictions prohibiting us from,
transferring such skills or technology to another third party and a feasible alternative may not exist. These factors may increase our reliance on such
manufacturer or require us to obtain a license from such manufacturer in order to have another third party manufacture our therapeutic candidates. If we are
required to change manufacturers for any reason, we will be required to verify the new manufacturer maintains facilities and procedures complying with
quality standards and with all

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applicable regulations. The delays associated with the verification of a new manufacturer could negatively affect our ability to develop therapeutic candidates
in a timely manner, within budget, or at all.

We expect to continue to rely on third party manufacturers if we receive regulatory approval for any therapeutic candidate. To the extent we have
existing, or enter into future, manufacturing arrangements with third parties, we will depend on these third parties to perform their obligations in a timely
manner consistent with contractual and regulatory requirements, including those related to quality control and assurance. If we are unable to obtain or
maintain third-party manufacturing for therapeutic candidates, or to do so on commercially reasonable terms, we may not be able to develop and
commercialize our therapeutic candidates successfully. Our, or a third party’s, failure to execute on our manufacturing requirements could adversely affect
our business in a number of ways, including as a result of:

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an inability to initiate or continue preclinical studies or clinical trials of therapeutic candidates under development;

delay in submitting regulatory applications, or receiving regulatory approvals, for therapeutic candidates;

the loss of the cooperation of a collaborator;

subjecting manufacturing facilities of our therapeutic candidates to additional inspections by regulatory authorities;

requirements to cease distribution or to recall batches of our therapeutic candidates; and

in the event of approval to market and commercialize a therapeutic candidate, an inability to meet commercial demands for our products.

We may not successfully engage in strategic transactions, including any additional collaborations we seek, which could adversely affect our ability to
develop and commercialize therapeutic candidates, impact our cash position, increase our expenses, and present significant distractions to our
management.

From time to time, we may consider strategic transactions, such as collaborations, acquisitions of companies, asset purchases, and out- or in-
licensing of therapeutic candidates or technologies. In particular, in addition to our current arrangements with Kite, we intend to evaluate and, if strategically
attractive, seek to enter into additional collaborations, including with major biotechnology or pharmaceutical companies. The competition for collaborative
partners is intense, and the negotiation process is time-consuming and complex. Any new collaboration may be on suboptimal terms for us, and we may be
unable to maintain any new or existing collaboration if, for example, development or approval of a therapeutic candidate is delayed, sales of an approved
therapeutic candidate do not meet expectations, or the collaborator terminates the collaboration. Any such collaboration, or other strategic transaction, may
require us to incur non-recurring or other charges, increase our near- and long-term expenditures and pose significant integration or implementation
challenges or disrupt our management or business.

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These transactions would entail numerous operational and financial risks, including:

exposure to unknown liabilities;

disruption of our business and diversion of our management’s time and attention in order to manage a collaboration or develop acquired
therapeutic candidates, or technologies;

incurrence of substantial debt or dilutive issuances of equity securities to pay transaction consideration or costs;

higher than expected collaboration, acquisition, or integration costs;

write-downs of assets or goodwill, or incurring impairment charges or increased amortization expenses; and

difficulty and cost in facilitating the collaboration or combining the operations and personnel of any acquired business or impairment of
relationships with key suppliers, manufacturers, or customers of any acquired business due to changes in management and ownership and the
inability to retain key employees of any acquired business.

Accordingly, although there can be no assurance we will undertake or successfully complete any transactions of the nature described above, any

transactions we do complete may be subject to the foregoing or other risks and have a material adverse effect on our business, results of operations, financial
condition, and prospects. Conversely, any failure to enter any collaboration or other strategic transaction beneficial to us could delay the development and
potential commercialization of our therapeutic candidates and have a negative impact on the competitiveness of any therapeutic candidate reaching market.

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We face competition from entities that have developed or may develop therapeutic candidates for our target disease indications, including companies
developing novel treatments and technology platforms based on modalities and technology similar to us. If these companies develop technologies or
therapeutic candidates more rapidly than we do, or their technologies, including delivery technologies, are more effective, our ability to develop and
successfully commercialize therapeutic candidates may be adversely affected.

The development and commercialization of therapeutic candidates is highly competitive. We believe a significant number of products are currently

under development, and may become commercially available in the future, for the treatment of conditions for which we may try to develop therapeutic
candidates. There are also competitors to our proprietary therapeutic candidates currently in development, some of which may become commercially
available before our therapeutic candidates.

We compete with a variety of multinational pharmaceutical companies and specialized biotechnology companies, as well as with technologies being

developed at universities and other research institutions. Our competitors have developed, are developing, or may develop therapeutic candidates and
processes competitive with our therapeutic candidates. Competitive therapeutic treatments include those already approved and accepted by the medical
community and any new treatments entering or about to enter the market. We are aware of multiple companies developing therapies with the same target as at
least one target of our lead program (ICOSL and/or CD28) as well as companies building novel platforms to generate multi-specific antibody or non-
antibody-based targeting proteins. While it is still premature for us to determine which indications may be targeted by our lead program, potential competitors
to our lead program include:

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an anti-ICOSL/B7RP-1 monoclonal antibody being developed by Amgen, Inc. (may be referred to as AMG557 or MEDI5872);

an anti-ICOS monoclonal antibody being developed by MedImmune, Inc. (MEDI570);

an anti-CD28 monoclonal antibody fragment being developed by OSE ImmunoTherapeutics SA and Johnson & Johnson Inc. (FR104);

a CTLA-4 Ig fusion selective for CD86 fusion protein being developed by Astellas Pharma Inc. (ASP 2408/09);

a CD28 superagonist monoclonal antibody being developed by TheraMab LLC (TAB08); and

an anti-BAFF, anti-ICOSL bispecific antibody being developed by Amgen, Inc (AMG/570/MEDI0700)

Platforms potentially competitive with our scientific platform include:

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Nanobody® (Ablynx NV): Platform technology of single-domain, heavy-chain antibody fragments derived from camelidae (e.g., camels and
llamas);

DART® (Macrogenics Inc): Dual-Affinity Re-Targeting and Trident technology platforms bind multiple targets with a single molecule;

Anticalin® (Pieris Pharmaceuticals Inc): Engineered proteins derived from natural lipocalins found in blood plasma;

Targeted Immunomodulation™ (Compass Therapeutics LLC): Antibody discovery targeting the tumor-immune synapse;

Harpoon Therapeutics Inc: Trispecific antigen-binding proteins;

Various bispecific antibody platforms (e.g., Amgen Inc (BiTE®—approved), Roche AG (RG7828), Zymeworks Inc (Azymetric™), Xencor
Inc (XmAb Bispecific), Compass Therapeutics (StitchMabs™);

Five Prime Therapeutics®: Proprietary protein library and rapid protein production and testing platform;

Regeneron®: VEGF Trap and VelociSuite® antibody technology platforms; and

Shattuck Labs® Agonist Redirected Antibody platform claimed to bind tumor-necrosis factor (“TNF”) and checkpoint targets.

Additionally, there are a number of other therapies for autoimmune/inflammatory diseases or cancer approved or in development that are also

competitive with our lead program and other programs in development. Many of the other therapies include other types of immunotherapies with different
targets than our programs. Other potentially competitive therapies work in ways distinct from our development programs.

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Many of our competitors have significantly greater financial, technical, manufacturing, marketing, sales, and supply resources or experience than we

have. If we successfully obtain approval for any therapeutic candidate, we will face competition based on many different factors, including safety and
effectiveness, ease with which our products can be administered and the extent to which patients accept relatively new routes of administration, timing and
scope of regulatory approvals, availability and cost of manufacturing, marketing and sales capabilities, price, reimbursement coverage, and patent position of
our products. Competing products could present superior treatment alternatives, including by being more effective, safer, less expensive, or marketed and
sold more effectively than any products we may develop. Competitive products may make any products we develop obsolete or noncompetitive before we
recover the expense of developing and commercializing our therapeutic candidates. Competitors could also recruit our employees, which could negatively
impact our ability to execute our business plan.

Any inability to attract and retain qualified key management and technical personnel would impair our ability to implement our business plan.

Our success largely depends on the continued service of key management and other specialized personnel, including Mitchell H. Gold, M.D., our

Executive Chairman and Chief Executive Officer, Jay R. Venkatesan, M.D., our President and a member of our board of directors, Stanford Peng, M.D.,
Ph.D., our Executive Vice President of Research and Development and Chief Medical Officer, and Paul Rickey, our Senior Vice President and Chief
Financial Officer.

The loss of one or more members of our management team or other key employees or advisors could delay our research and development programs

and materially harm our business, financial condition, results of operations, and prospects. The relationships our key managers have cultivated within our
industry make us particularly dependent upon their continued employment with us. We are dependent on the continued service of our technical personnel
because of the highly technical nature of our therapeutic candidates and technologies, and the specialized nature of the regulatory approval process. Because
our management team and key employees are not obligated to provide us with continued service, they could terminate their employment with us at any time
without penalty. We do not maintain key person life insurance policies on any of our management team members or key employees. Our future success will
depend in large part on our continued ability to attract and retain other highly qualified scientific, technical, and management personnel, as well as personnel
with expertise in clinical testing, manufacturing, governmental regulation, and commercialization. We face competition for personnel from other companies,
universities, public and private research institutions, government entities, and other organizations, including significant competition in the Seattle
employment market.

If our therapeutic candidates advance into clinical trials, we may experience difficulties in managing our growth and expanding our operations.

We have limited experience in therapeutic development and very limited experience with clinical trials of therapeutic candidates. As our therapeutic

candidates enter and advance through preclinical studies and any clinical trials, we will need to expand our development, regulatory, and manufacturing
capabilities or contract with other organizations to provide these capabilities for us. In the future, we expect to have to manage additional relationships with
collaborators or partners, suppliers, and other organizations. Our ability to manage our operations and future growth will require us to continue to improve
our operational, financial, and management controls, reporting systems, and procedures. We may not be able to implement improvements to our management
information and control systems in an efficient or timely manner and may discover deficiencies in existing systems and controls.

If any of our therapeutic candidates are approved for marketing and commercialization and we are unable to develop sales, marketing and distribution
capabilities on our own or enter into agreements with third parties to perform these functions on acceptable terms, we may be unable to successfully
commercialize any such future products.

We currently have no sales, marketing, or distribution capabilities or experience. If any of our therapeutic candidates are approved, we will need to
develop internal sales, marketing, and distribution capabilities to commercialize such products, which may be expensive and time-consuming, or enter into
collaborations with third parties to perform these services. If we decide to market our products directly, we will need to commit significant financial, legal,
and managerial resources to develop a marketing and sales force with technical expertise and supporting distribution, administration, and compliance
capabilities. If we rely on third parties with such capabilities to market our approved products, or decide to co-promote products with collaborators, we will
need to establish and maintain marketing and distribution arrangements with third parties, and there can be no assurance we will be able to enter into such
arrangements on acceptable, compliant terms or at all. In entering into third-party marketing or distribution arrangements, any revenue we receive will
depend upon the efforts of the third parties and there can be no assurance such third parties will establish adequate sales and distribution capabilities

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or be successful in gaining market acceptance of any approved therapeutic. If we are not successful in commercializing any therapeutic approved in the
future, either on our own or through third parties, our business, financial condition, results of operations, and prospects could be materially and adversely
affected.

If we fail to comply with U.S. and foreign regulatory requirements, regulatory authorities could limit or withdraw any marketing or commercialization
approvals we may receive and subject us to other penalties that could materially harm our business.

Our company, our therapeutic candidates, our suppliers, and our contract manufacturers, distributors, and contract testing laboratories are subject to

extensive regulation by governmental authorities in the European Union, the United States, and other countries, with regulations differing from country to
country.

Even if we receive marketing and commercialization approval of a therapeutic candidate, we and our third-party service providers will be subject to
continuing regulatory requirements, including a broad array of regulations related to establishment registration and product listing, manufacturing processes,
risk management measures, quality and pharmacovigilance systems, post-approval clinical studies, labeling, advertising and promotional activities, record
keeping, distribution, adverse event reporting, import and export of pharmaceutical products, pricing, sales, and marketing, and fraud and abuse requirements.
Any product promotion and advertising will also be subject to regulatory requirements and continuing regulatory review.

We are required to submit safety and other post market information and reports, and are subject to continuing regulatory review, including in relation

to adverse patient experiences with the product and clinical results reported after a product is made commercially available, both in the United States and in
any foreign jurisdiction in which we seek regulatory approval. The FDA and certain foreign regulatory authorities, such as the EMA, have significant post-
market authority, including the authority to require labeling changes based on new safety information and to require post-market studies or clinical trials to
evaluate safety risks related to the use of a product or to require withdrawal of the product from the market.

The FDA also has the authority to require a Risk Evaluation and Mitigation Strategies, or REMS, plan either before or after approval, which may

impose further requirements or restrictions on the distribution or use of an approved therapeutic. The EMA now routinely requires risk management plans, or
RMPs, as part of the marketing authorization application process, and such plans must be continually modified and updated throughout the lifetime of the
product as new information becomes available. In addition, the relevant governmental authority of any EU member state can request an RMP whenever there
is a concern about the risk/ benefit balance of the product.

The manufacturers and manufacturing facilities we use to make a future product, if any, will also be subject to periodic review and inspection by the

FDA and other regulatory agencies, including for continued compliance with cGMP requirements. The discovery of any new or previously unknown
problems with our third-party manufacturers, manufacturing processes or facilities may result in restrictions on the product, manufacturers or facilities,
including withdrawal of the product from the market. If we rely on third-party manufacturers, we will not have control over compliance with applicable rules
and regulations by such manufacturers.

If we or our collaborators, manufacturers, or service providers fail to comply with applicable continuing regulatory requirements in the U.S. or

foreign jurisdictions in which we seek to market our products, we may be subject to, among other things, fines, warning and untitled letters, clinical holds,
delay or refusal by the FDA or foreign regulatory authorities to approve pending applications or supplements to approved applications, suspension, refusal to
renew or withdrawal of regulatory approval, product recalls, seizures, or administrative detention of products, refusal to permit the import or export of
products, operating restrictions, inability to participate in government programs including Medicare and Medicaid, and total or partial suspension of
production or distribution, injunction, restitution, disgorgement, debarment, civil penalties, and criminal prosecution.

Imposed price controls may adversely affect our future profitability.

In most countries, the pricing of prescription drugs is subject to governmental control. In these countries, pricing negotiations with governmental

authorities can take considerable time after receipt of marketing approval for a product. In addition, there can be considerable pressure by governments and
other stakeholders on prices and reimbursement levels, including as part of cost containment measures. Political, economic, and regulatory developments may
further complicate pricing and reimbursement negotiations, and pricing negotiations may continue after reimbursement has been obtained.

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Reference pricing used by various EU member states and parallel distribution, or arbitrage between low-priced and high-priced member states, can
further reduce prices. In some countries, we or our collaborators may be required to conduct a clinical trial or other studies comparing the cost-effectiveness
of our vIgD therapeutic candidates to other available therapies in order to obtain or maintain reimbursement or pricing approval. Publication of discounts by
third-party payors or authorities may lead to further pressure on the prices or reimbursement levels within the country of publication and other countries. If
reimbursement of any product candidate approved for marketing is unavailable or limited in scope or amount, or if pricing is set at unsatisfactory levels, our
business, financial condition, results of operations, or prospects could be adversely affected.

Our business entails a significant risk of product liability and our ability to obtain sufficient insurance coverage could harm our business, financial
condition, results of operations, or prospects.

Our business exposes us to significant product liability risks inherent in the development, testing, manufacturing, and marketing of therapeutic

treatments. Product liability claims could delay or prevent completion of our development programs. If we succeed in marketing products, such claims could
result in an investigation by certain regulatory authorities, such as FDA or foreign regulatory authorities, of the safety and effectiveness of our products, our
manufacturing processes and facilities, or our marketing programs and potentially a recall of our products or more serious enforcement action, limitations on
the approved indications for which they may be used, or suspension or withdrawal of approvals. Regardless of the merits or eventual outcome, liability claims
may also result in decreased demand for our products, injury to our reputation, costs to defend the related litigation, a diversion of management’s time and
our resources, substantial monetary awards to trial participants or patients, and a decline in our valuation. We currently have product liability insurance we
believe is appropriate for our stage of development and may need to obtain higher levels of product liability insurance prior to marketing any therapeutic
candidates. Any insurance we have or may obtain may not provide sufficient coverage against potential liabilities. Furthermore, clinical trial and product
liability insurance is becoming increasingly expensive. As a result, we may be unable to obtain sufficient insurance at a reasonable cost to protect us against
losses caused by product liability claims with a potentially material adverse effect on our business.

Our employees may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements, which
could have a material adverse effect on our business.

We are exposed to the risk of employee fraud or other misconduct. Misconduct by employees could include, but is not limited to:

intentional failures to comply with FDA or U.S. health care laws and regulations, or applicable laws, regulations, guidance, or codes of
conduct set by foreign governmental authorities or self-regulatory industry organizations;

a provision of inaccurate information to any governmental authorities such as FDA;

noncompliance with manufacturing standards we may establish;

noncompliance with federal and state healthcare fraud and abuse laws and regulations; and

a failure to report financial information or data accurately or a failure to disclose unauthorized activities to us.

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In particular, sales, marketing and business arrangements in the healthcare industry are subject to extensive laws, regulations, guidance and codes of

conduct intended to prevent fraud, kickbacks, self-dealing and other abusive practices. These laws, regulations, guidance statements, and codes of conduct
may restrict or prohibit a wide range of pricing, discounting, marketing and promotion, sales commission, customer incentive program, health care
professional, and other business arrangements.

Employee misconduct could also involve the improper use of information obtained in the course of clinical trials, which could result in regulatory

sanctions, including debarment or disqualification of those employees from participation in FDA regulated activities and serious harm to our reputation. This
could include violations of provisions of the U.S. federal Health Insurance Portability and Accountability Act, or HIPAA, as amended by the Health
Information Technology for Economic and Clinical Health Act, or HITECH, other U.S. federal and state law, and requirements of non-U.S. jurisdictions,
including the European Union Data Protection Directive.

It is not always possible to identify and deter employee misconduct, and the precautions we take to detect and prevent this activity may not be

effective in controlling unknown or unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming
from a failure to be in compliance with such laws, regulations, guidance,

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or codes of conduct. If any such actions are instituted against us, and we are not successful in defending such actions or asserting our rights, those actions
could have a significant impact on our business, including the imposition of significant fines, exclusion from government programs, or other sanctions.

Our business involves the use of hazardous materials and we and our third-party manufacturers must comply with environmental laws and regulations,
which may be expensive and restrict how we conduct business.

Our third-party manufacturers’ activities and our own activities involve the controlled storage, use and disposal of hazardous and flammable

materials, including the components of our pharmaceutical product candidates, test samples and reagents, biological materials and other hazardous
compounds. We and our manufacturers are subject to federal, state, local and foreign laws and regulations governing the use, generation, manufacture,
storage, handling and disposal of these hazardous materials. Although we believe our safety procedures for handling and disposing of these materials and
waste products comply with the standards prescribed by these laws and regulations, we cannot eliminate the risk of accidental injury or contamination from
the use, storage, handling or disposal of hazardous materials. In the event of an accident, state or federal or other applicable authorities may curtail our use of
these materials and/or interrupt our business operations. In addition, if an accident or environmental discharge occurs, or if we discover contamination caused
by prior operations, including by prior owners and operators of properties we acquire, we could be liable for cleanup obligations, damages, and fines. If such
unexpected costs are substantial, this could significantly harm our financial condition and results of operations.

Compliance with governmental regulations regarding the treatment of animals used in research could increase our operating costs, which would
adversely affect the commercialization of our technology.

The Animal Welfare Act, or AWA, is the federal law covering the treatment of certain animals used in research. Currently, the AWA imposes a wide

variety of specific regulations governing the humane handling, care, treatment, and transportation of certain animals by producers and users of research
animals, most notably relating to personnel, facilities, sanitation, cage size and feeding, watering and shipping conditions. Third parties with whom we
contract are subject to registration, inspections, and reporting requirements under the AWA. Furthermore, some states have their own regulations, including
general anti-cruelty legislation, which establish certain standards in handling animals. Comparable rules, regulations, and or obligations exist in many foreign
jurisdictions. If we or our contractors fail to comply with regulations concerning the treatment of animals used in research, we may be subject to fines and
penalties and adverse publicity, and our operations could be adversely affected.

Our information technology systems could face serious disruptions adversely affecting our business.

Our information technology and other internal infrastructure systems, including corporate firewalls, servers, leased lines, and connection to the

Internet, face the risk of systemic failure potentially disruptive to our operations. A significant disruption in the availability of our information technology
and other internal infrastructure systems could cause interruptions in our collaborations with our partners and delays in our research and development work.

Our current operations are concentrated in one location and any events affecting this location may have material adverse consequences.

Our current operations are located in facilities situated in Seattle. Any unplanned event, such as flood, fire, explosion, earthquake, extreme weather
condition, medical epidemics, power shortage, power outage, telecommunication failure, or other natural or manmade accidents or incidents resulting in our
company being unable to fully utilize the facilities, may have a material adverse effect on our ability to operate our business, particularly on a daily basis, and
have significant negative consequences on our financial and operating conditions. Loss of access to these facilities may result in increased costs, delays in the
development of our therapeutic candidates, or interruption of our business operations. As part of our risk management policy, we maintain insurance coverage
at levels we believe are appropriate for our business. However, in the event of an accident or incident at these facilities, we cannot assure you the amounts of
insurance will be sufficient to satisfy any damages and losses or that the insurance covers all risks. If our facilities are unable to operate because of an
accident or incident or for any other reason, even for a short period of time, any or all of our research and development programs may be harmed. Any
business interruption may have a material adverse effect on our business, financial position, results of operations, and prospects.

The investment of our cash, cash equivalents, and fixed income in marketable securities is subject to risks which may cause losses and affect the liquidity
of these investments.

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As of December 31, 2017, we had $81.2 million in cash, cash equivalents, and investments. We expect to invest our excess cash in marketable

securities. These investments are subject to general credit, liquidity, market and interest rate risks, including potential future impacts similar to the impact of
U.S. sub-prime mortgage defaults previously affecting various sectors of the financial markets and which caused credit and liquidity issues. We may realize
losses in the fair value of these investments, an inability to access cash in these investments for a potentially meaningful period, or a complete loss of these
investments, which would have a negative effect on our financial statements.

Changes in accounting rules and regulations, or interpretations thereof, could result in unfavorable accounting charges or require us to change our
compensation policies.

Accounting methods and policies for biopharmaceutical companies, including policies governing revenue recognition, research and development and
related expenses, and accounting for stock-based compensation, are subject to review, interpretation, and guidance from our auditors and relevant accounting
authorities, including the SEC. Changes to accounting methods or policies, or interpretations thereof, may require us to reclassify, restate, or otherwise
change or revise our financial statements.

Nivalis’ pre-merger net operating loss carryforwards and certain other tax attributes are likely subject to limitations. The pre-merger net operating loss
carryforwards and certain other tax attributes of Alpine and of the combined organization may also be subject to limitations as a result of ownership
changes resulting from the merger.

In general, a corporation that undergoes an “ownership change” is subject to limitations on its ability to utilize its pre-change net operating loss
carryforwards, or NOLs, to offset future taxable income. In general, an ownership change occurs if the aggregate stock ownership of certain stockholders,
generally stockholders beneficially owning five percent or more of a corporation’s common stock, applying certain look-through and aggregation rules,
increases by more than 50 percentage points over such stockholders’ lowest percentage ownership during the testing period, generally three years. Nivalis
may have experienced ownership changes in the past and may experience ownership changes in the future. In addition, the closing of the merger likely
resulted in an ownership change for Nivalis. It is likely that, due to the method by which limitations on the utilization of NOL carryforwards are calculated,
we will not be able to utilize any of Nivalis’ net operating loss carryforwards and certain other tax attributes. It is also possible that Alpine’s net operating
loss carryforwards and certain other tax attributes may be subject to limitation as a result of ownership changes in the past and/or the closing of the merger.
Consequently, even if we achieve profitability, we may not be able to utilize a material portion of Alpine’s, or any of Nivalis’, net operating loss
carryforwards and certain other tax attributes, which could have a material adverse effect on cash flow and results of operations.

 Provisions of our debt instruments may restrict our ability to pursue our business strategies.

Our term loan agreement requires us, and any debt financing we may obtain in the future may require us, to comply with various covenants that limit

our ability to, among other things:

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dispose of assets;

compete mergers or acquisitions;

incur indebtedness;

encumber assets;

pay dividends or make other distributions to holders of our capital stock;

make specified investments;

engage in any new line or business; and

engagement in certain transactions with our affiliates

These restrictions could inhibit our ability to pursue our business strategies.  If we default under our term loan agreement, and such event of default is

not cured or waived, the lenders could terminate commitments to lend and cause all amounts outstanding with respect to the debt to be due and payable
immediately, which in turn could result in cross defaults under other debt instruments. Our assets and cash flow may not be sufficient to fully repay
borrowings under our outstanding debt instruments if some or all of these instruments are accelerated upon a default. We may incur additional indebtedness in
the future. The debt instruments governing such indebtedness could contain provisions that are as, or more, restrictive than our existing debt instruments. If
we are unable to repay, refinance or restructure our indebtedness when payment is due, the

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lenders could proceed against the collateral granted to them to secure such indebtedness or force us into bankruptcy or liquidation.

Our business may be affected by litigation and government investigations.

We may from time to time receive inquiries and subpoenas and other types of information requests from government authorities and others and we

may become subject to claims and other actions related to our business activities. While the ultimate outcome of investigations, inquiries, information
requests, and legal proceedings is difficult to predict, defense of litigation claims can be expensive, time-consuming and distracting, and adverse resolutions
or settlements of those matters may result in, among other things, modification of our business practices, costs, and significant payments, any of which could
have a material adverse effect on our business, financial condition, results of operations, and prospects.

We believe our development programs and platform have a particular mechanism of action, but this mechanism of action has not been proven
conclusively.

Our scientific platform is novel and the underlying science is not exhaustively understood nor conclusively proven. In particular, the interaction of vIgDs

with the immune synapse, the ability of vIgDs to slow, stop, restart, or accelerate immune responses, and the ability of vIgD domains to interact with multiple
counterstructures is still largely theoretical. Graphical representations of proposed mechanisms of action of our therapies, the size, actual or relative, of our
therapeutics, and how our therapeutics might interface with other cells within the human body, inside the immune synapse, or inside the disease and/or the tumor
microenvironment are similarly theoretical and not yet conclusively proven. The lack of a proven mechanism of action may adversely affect our ability to raise
sufficient capital, complete preclinical studies, adequately manufacture drug product, obtain regulatory clearance for clinical trials, or approval for marketing, or
interfere with our ability to market our product to patients and physicians or achieve reimbursement from payors.

Because we have no products currently in human clinical trials, any inability to present our data in scientific journals or at scientific conferences could
adversely impact our business and stock price.

We may from time to time submit data related to our research and development in peer-reviewed scientific publications or apply to present data

related to our research and development at scientific or other conferences. We have no control over whether these submissions or applications are accepted.
Even if accepted for a conference, we have no control over whether presentations at scientific conferences will be accepted for oral presentation, poster
presentation, or abstract publication only. Even when accepted for publication, we have no control over the timing of the release of the publication. Rejection
by publications, delays in publication, rejection for presentation, or a less-preferred format for a presentation may adversely impact our stock price, ability to
raise capital, and business.

Our business may be affected by adverse scientific publications or editorial or discussant opinions.

We may from time to time publish data related to our research and development in peer-reviewed scientific publications or present data related to our
research and development at scientific or other conferences. Editorials or discussants unrelated to us may provide opinions on our presented data unfavorable
to us. In addition, scientific publications or presentations may be made which are critical of our science or research or the field of immunotherapy in general.
This may adversely affect our ability to raise necessary capital, complete preclinical studies, adequately manufacture drug product, obtain regulatory
clearance for clinical trials, or approval for marketing, or interfere with our ability to market our product to patients and physicians or achieve reimbursement
from payors.

Risks Related to Our Intellectual Property

If we are not able to obtain and enforce patent protection for our technology, including therapeutic candidates, therapeutic products, and platform
technology, development of our therapeutic candidates and platform, and commercialization of our therapeutic products may be materially and adversely
affected.

Our success depends in part on our ability to obtain and maintain patents and other forms of intellectual property rights, including in-licenses of

intellectual property rights of others, for our technology, including platform and therapeutic candidates and products, methods used to manufacture our
therapeutic candidates, and products and methods for treating patients using our therapeutic candidates and products, as well as our ability to preserve our
trade secrets, to prevent third parties from infringing upon our proprietary rights, and to operate without infringing upon the proprietary rights of others. As of
December 31, 2017, our patent portfolio consists of over 13 pending patent applications. We may not be able to apply for patents on certain aspects of our
technology, including therapeutic candidates and products, in a timely fashion or at all. Any

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future patents we obtain may not be sufficiently broad to prevent others from using our technology or from developing competing therapeutics and
technology. There is no guarantee that any of our pending patent applications will result in issued or granted patents, any of our issued or granted patents will
not later be found to be invalid or unenforceable, or any issued or granted patents will include claims sufficiently broad to cover our technology, including
therapeutic candidates and products, or to provide meaningful protection from our competitors. Moreover, the patent position of pharmaceutical and
biotechnology companies can be highly uncertain because it involves complex legal and factual questions. We will be able to protect our proprietary rights
from unauthorized use by third parties only to the extent our current and future technology, including therapeutic candidates and products, are covered by
valid and enforceable patents or are effectively maintained as trade secrets. If third parties disclose or misappropriate our proprietary rights, it may materially
and adversely impact our competitive position in the market.

The U.S. Patent and Trademark Office, or USPTO, and various foreign governmental patent agencies require compliance with a number of

procedural, documentary, fee payment, and other provisions during the patent process. There are situations in which noncompliance can result in
abandonment or lapse of a patent or patent application, resulting in partial or complete loss of patent rights in the relevant jurisdiction. In such an event,
competitors might be able to enter the market earlier than would otherwise have been the case. The standards applied by the USPTO and foreign patent
offices in granting patents are not always applied uniformly or predictably. For example, there is no uniform worldwide policy regarding patentable subject
matter or the scope of claims allowable in biotechnology and pharmaceutical patents. As such, we do not know the degree of future protection we will have
on our technology, including therapeutic candidates and products. While we will endeavor to try to protect our technology, including therapeutic candidates
and products, with intellectual property rights such as patents, as appropriate, the process of obtaining patents is time-consuming, expensive, and sometimes
unpredictable, and we can provide no assurances our technology, including therapeutic candidates and products, will be adequately protected in the future
against unauthorized uses or competing claims by third parties.

In addition, recent and future changes to the patent laws and to the rules of the USPTO or other foreign patent offices may have a significant impact
on our ability to protect our technology, including therapeutic candidates and products, and enforce our intellectual property rights. For example, the Leahy-
Smith America Invents Act enacted in 2011 involves significant changes in patent legislation. In addition, we cannot assure you court rulings or
interpretations of any court decision will not adversely impact our patents or patent applications. In addition to increasing uncertainty with regard to our
ability to obtain patents in the future, there also may be uncertainty with respect to the value of patents, once obtained. Depending on decisions by the U.S.
Congress, the federal courts, and the USPTO, the laws and regulations governing patents could change in unpredictable ways that would weaken our ability
to obtain new patents or to enforce our existing patents and patents we might obtain in the future.

Once granted, patents may remain open to opposition, interference, re-examination, post-grant review, inter partes review, nullification, or derivation

action in court or before patent offices or similar proceedings for a given period before or after allowance or grant, during which time third parties can raise
objections against such initial grant. In the course of such proceedings, which may continue for a protracted period of time, the patent owner may be
compelled to limit the scope of the allowed or granted claims thus attacked, or may lose the allowed or granted claims altogether. Our patent risks include
that:

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others may, or may be able to, make, use or sell compounds that are the same as or similar to our therapeutic candidates and products but that
are not covered by the claims of the patents we own or license;

we or our licensors, collaborators, or any future collaborators may not be the first to file patent applications covering certain aspects of our
technology, including therapeutic candidates and products;

others may independently develop similar or alternative technology or duplicate any of our technology without infringing our intellectual
property rights;

a third party may challenge our patents and, if challenged, a court may not hold that our patents are valid, enforceable, and non-infringing;

a third party may challenge our patents in various patent offices and, if challenged, we may be compelled to limit the scope of our allowed or
granted claims or lose the allowed or granted claims altogether;

any issued patents we own or have licensed may not provide us with any competitive advantages, or may be challenged by third parties;

we may not develop additional proprietary technologies that are patentable;

the patents of others could harm our business; and

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our competitors could conduct research and development activities in countries where we do not or will not have enforceable patent rights and
then use the information learned from such activities to develop competitive products for sale in major commercial markets where we do not
or will not have enforceable patent rights.

We license patent rights from third-party owners or licensees. If such owners or licensees do not properly or successfully obtain, maintain or enforce the
patents underlying such licenses, or if they retain or license to others any competing rights, our competitive position and business prospects may be
materially and adversely affected.

We rely, and will continue to rely, upon intellectual property rights licensed from third parties to protect our technology, including platform
technology and therapeutic candidates and products. We are a party to a number of licenses granting us rights to third-party intellectual property necessary or
useful for our business. We may also license additional third-party intellectual property in the future. Our success will depend in part on the ability of our
licensors to obtain, maintain, and enforce patent protection for our licensed intellectual property, in particular those patents to which we have secured
exclusive rights. Our licensors may elect not to prosecute, or may be unsuccessful in prosecuting, the patent applications licensed to us. Even if patents issue
or are granted, our licensors may fail to maintain these patents, may determine not to pursue litigation against other companies infringing these patents, or
may pursue litigation less aggressively than we would. Further, substantially all of our existing licenses are non-exclusive and we may not be able to obtain
exclusive rights in licenses obtained in the future, which would potentially allow third parties to develop competing products or technology. Without
protection for, or exclusive right to, the intellectual property we license, other companies might be able to offer substantially identical products for sale,
which could adversely affect our competitive business position and harm our business prospects. In addition, we may sublicense our rights under our third-
party licenses to current or future collaborators or any future strategic partners. Any impairment of these sublicensed rights could result in reduced revenue
under or result in termination of an agreement by one or more of our collaborators or any future strategic partners.

We may be unable to protect our patent intellectual property rights throughout the world.

Obtaining a valid and enforceable issued or granted patent covering our technology, including therapeutic candidates and products, in the United

States and worldwide can be extremely costly. In jurisdictions where we have not obtained patent protection, competitors may use our technology, including
therapeutic candidates and products, to develop their own products, and further, may commercialize such products in those jurisdictions and export otherwise
infringing products to territories where we have not obtained patent protection. In certain instances, a competitor may be able to export otherwise infringing
products in territories where we will obtain patent protection. In jurisdictions outside the United States where we will obtain patent protection, it may be more
difficult to enforce a patent as compared to the United States. Competitor products may compete with our future products in jurisdictions where we do not or
will not have issued or granted patents or where our issued or granted patent claims or other intellectual property rights are not sufficient to prevent
competitor activities in these jurisdictions. The legal systems of certain countries, particularly certain developing countries, make it difficult to enforce
patents and such countries may not recognize other types of intellectual property protection, particularly relating to biopharmaceuticals. This could make it
difficult for us to prevent the infringement of our patents or marketing of competing products in violation of our proprietary rights generally in certain
jurisdictions. Proceedings to enforce our patent rights in foreign jurisdictions could result in substantial cost and divert our efforts and attention from other
aspects of our business.

We generally file a provisional patent application first (a priority filing) at the USPTO. A U.S. utility application and international application under

the Patent Cooperation Treaty, or PCT, are usually filed within twelve months after the priority filing. Based on the PCT filing, national and regional patent
applications may be filed in various international jurisdictions, such as the European Union, Japan, Australia, and Canada. We have so far not filed for patent
protection in all national and regional jurisdictions where such protection may be available. In addition, we may decide to abandon national and regional
patent applications before they are granted. Finally, the grant proceeding of each national or regional patent is an independent proceeding which may lead to
situations in which applications might in some jurisdictions be refused by the relevant registration authorities, while granted by others. It is also quite
common that, depending on the country, various scopes of patent protection may be granted on the same therapeutic candidate, product, or technology. The
laws of some jurisdictions do not protect intellectual property rights to the same extent as the laws in the United States, and many companies have
encountered significant difficulties in protecting and defending such rights in such jurisdictions. If we or our licensors encounter difficulties in protecting, or
are otherwise precluded from effectively protecting, the intellectual property rights important for our business in such jurisdictions, the value of these rights
may be diminished and we may face additional competition from others in those jurisdictions. Many countries have compulsory licensing laws under which a
patent owner may be compelled to grant licenses to third parties. In addition, many countries limit the enforceability of patents against government agencies
or government contractors. In these countries, the patent owner may have limited

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remedies, which could materially diminish the value of such patent. If we or any of our licensors are forced to grant a license to third parties with respect to
any patents relevant to our business, our competitive position in the relevant jurisdiction may be impaired and our business and results of operations may be
adversely affected.

We or our licensors, collaborators, or any future strategic partners may become subject to third party claims or litigation alleging infringement of patents
or other proprietary rights or seeking to invalidate patents or other proprietary rights, and we may need to resort to litigation to protect or enforce our
patents or other proprietary rights, all of which could be costly, time consuming, delay or prevent the development of our therapeutic candidates and
commercialization of our therapeutic products, or put our patents and other proprietary rights at risk.

We or our licensors, licensees, collaborators, or any future strategic partners may be subject to third-party claims for infringement or
misappropriation of patent or other proprietary rights. We are generally obligated under our license or collaboration agreements to indemnify and hold
harmless our licensors, licensees, or collaborators for damages arising from intellectual property infringement by us. If we or our licensors, licensees,
collaborators, or any future strategic partners are found to infringe a third-party patent or other intellectual property rights, we could be required to pay
damages, potentially including treble damages, if we are found to have willfully infringed. In addition, we or our licensors, licensees, collaborators, or any
future strategic partners may choose to seek, or be required to seek, a license from a third party, which may not be available on acceptable terms, if at all.
Even if a license can be obtained on acceptable terms, the rights may be non-exclusive, which could give our competitors access to the same technology or
intellectual property rights licensed to or from us. If we fail to obtain a required license, we or our licensee or collaborator, or any future licensee or
collaborator, may be unable to effectively market therapeutic products based on our technology, which could limit our ability to generate revenue or achieve
profitability and possibly prevent us from generating revenue sufficient to sustain our operations. In addition, we may find it necessary to pursue claims or
initiate lawsuits to protect or enforce our patent or other intellectual property rights. The cost to us in defending or initiating any litigation or other proceeding
relating to patent or other proprietary rights, even if resolved in our favor, could be substantial, and litigation would divert our management’s attention. Some
of our competitors may be able to sustain the costs of complex patent litigation more effectively than we can because they have substantially greater
resources. Uncertainties resulting from the initiation and continuation of patent litigation or other proceedings could delay our research and development
efforts and limit our ability to continue our s operations.

Although we do not believe our technology infringes the intellectual property rights of others, we are aware of one or more patents or patent

applications that may relate to our technology, and third parties may assert against our claims alleging infringement of their intellectual property rights
regardless of whether their claims have merit. Infringement claims could harm our reputation, may result in the expenditure of significant resources to defend
and resolve such claims, and could require us to pay monetary damages if we are found to have infringed the intellectual property rights of others.

If we were to initiate legal proceedings against a third party to enforce a patent covering our technology, including therapeutic candidates and
products, the defendant could counterclaim that our patent is invalid or unenforceable. In patent litigation in the United States, defendant counterclaims
alleging invalidity or unenforceability are commonplace. Grounds for a validity challenge could be an alleged failure to meet any of several statutory
requirements, for example, patent ineligibility, lack of novelty, lack of written description, obviousness, or non-enablement. Grounds for an unenforceability
assertion could be an allegation someone connected with prosecution of the patent withheld relevant information from the USPTO, or made a misleading
statement, during prosecution. The outcome following legal assertions of invalidity and unenforceability during patent litigation is unpredictable. With
respect to the validity question, for example, we cannot be certain there is no invalidating prior art, of which we and the patent examiner were unaware during
prosecution. If a defendant were to prevail on a legal assertion of invalidity or unenforceability, we would lose at least part, and perhaps all, of the patent
protection on our technology, including therapeutic candidates and products. Such a loss of patent protection could have a material adverse impact on our
business. Patents and other intellectual property rights also will not protect our technology, including therapeutic candidates and products, if competitors
design around our protected technology, including therapeutic candidates and products, without legally infringing our patents or other intellectual property
rights.

It is also possible we have failed to identify relevant third-party patents or applications. For example, patent applications in the United States and

elsewhere are published approximately 18 months after the earliest filing for which priority is claimed, with such earliest filing date being commonly referred
to as the priority date. Therefore, patent applications covering our technology, including therapeutic candidates and products, could have been filed by others
without our knowledge. Additionally, pending patent applications which have been published can, subject to certain limitations, be later amended in a manner
that could cover our technology, including therapeutic candidates and products. Third party intellectual property rights holders may also actively bring
infringement claims against us. We cannot guarantee we will be able to successfully settle or otherwise resolve such infringement claims. If we are unable to
successfully settle future claims

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on terms acceptable to us, we may be required to engage in or continue costly, unpredictable, and time-consuming litigation and may be prevented from, or
experience substantial delays in, marketing our technology, including therapeutic candidates and products. If we fail in any such dispute, in addition to being
forced to pay damages, we may be temporarily or permanently prohibited from commercializing our technology, including a therapeutic product, held to be
infringing. We might, if possible, also be forced to redesign therapeutic candidates or products so we no longer infringe the third party intellectual property
rights. Any of these events, even if we were ultimately to prevail, could require us to divert substantial financial and management resources we would
otherwise be able to devote to our business.

If we fail to comply with our obligations under any license, collaboration, or other agreements, we may be required to pay damages and could lose
intellectual property rights necessary for developing and protecting our technology, including our platform technology, therapeutic candidates, and
therapeutic products, or we could lose certain rights to grant sublicenses, either of which could have a material adverse effect on our results of operations
and business prospects.

Our current licenses impose, and any future licenses we enter into are likely to impose, various development, commercialization, funding, milestone,

royalty, diligence, sublicensing, insurance, patent prosecution and enforcement, and other obligations on us. If we breach any of these obligations, or use the
intellectual property licensed to us in an unauthorized manner, we may be required to pay damages and the licensor may have the right to terminate the
license, which could result in us being unable to develop, manufacture, and sell products covered by the licensed technology or enable a competitor to gain
access to the licensed technology. Moreover, our licensors may own or control intellectual property that has not been licensed to us and, as a result, we may
be subject to claims, regardless of their merit, that we are infringing or otherwise violating the licensor’s rights. In addition, while we cannot currently
determine the amount of the royalty obligations we would be required to pay on future sales of licensed products, if any, the amounts may be significant. The
amount of our future royalty obligations will depend on the technology and intellectual property we use in therapeutic products we successfully develop and
commercialize, if any. Therefore, even if we successfully develop and commercialize therapeutic products, we may be unable to achieve or maintain
profitability.

If we are unable to protect the confidentiality of our trade secrets, our business and competitive position would be harmed.

In addition to seeking patent protection for certain aspects of our technology, including platform technology and therapeutic candidates and products,

we also consider trade secrets, including confidential and unpatented know-how, important to the maintenance of our competitive position. We protect trade
secrets and confidential and unpatented know-how, in part, by entering into non-disclosure and confidentiality agreements with parties who have access to
such knowledge, such as our employees, corporate collaborators, outside scientific collaborators, CROs, contract manufacturers, consultants, advisors, and
other third parties. We also enter into confidentiality and invention or patent assignment agreements with our employees and consultants obligating them to
maintain confidentiality and assign their inventions to us. Despite these efforts, any of these parties may breach the agreements and disclose our proprietary
information, including our trade secrets, and we may not be able to obtain adequate remedies for such breaches. Enforcing a claim that a party illegally
disclosed or misappropriated a trade secret is difficult, expensive, and time-consuming, and the outcome is unpredictable. In addition, some courts in the
United States and certain foreign jurisdictions are less willing or unwilling to protect trade secrets. If any of our trade secrets were to be lawfully obtained or
independently developed by a competitor, we would have no right to prevent them from using that technology or information to compete with us. If any of
our trade secrets were to be disclosed to or independently developed by a competitor, our competitive position would be harmed.

We are also subject both in the United States and outside the United States to various regulatory schemes regarding requests for the information we

provide to regulatory authorities, which may include, in whole or in part, trade secrets or confidential commercial information. While we are likely to be
notified in advance of any disclosure of such information and would likely object to such disclosure, there can be no assurance our challenge to the request
would be successful.

We may be in the future subject to claims we or our employees or consultants have wrongfully used or disclosed alleged trade secrets of our employees’ or
consultants’ former employers or their clients. These claims may be costly to defend and if we do not successfully do so, we may be required to pay
monetary damages, may be prohibited from using some of our research and development and may lose valuable intellectual property rights or personnel.

Many of our employees were previously employed at universities or biotechnology or pharmaceutical companies, including our current and potential
competitors. We may receive correspondence from other companies alleging the improper use or disclosure, and have received, and may in the future receive,
correspondence from other companies regarding the use or disclosure, by certain of our employees who have previously been employed elsewhere in our
industry, including with our competitors, of their former employer’s trade secrets or other proprietary information. Responding to

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these allegations can be costly and disruptive to our business, even when the allegations are without merit, and can be a distraction to management. We may
be subject to claims in the future that our employees have, or we have, inadvertently or otherwise used or disclosed trade secrets or other proprietary
information of their former employers. Litigation may be necessary to defend against these claims. If we fail in defending current or future claims, in addition
to paying monetary damages, we may lose valuable intellectual property rights, personnel, or the ability to use some of our research and development. A loss
of intellectual property, key research personnel, or their work product could hamper our ability to commercialize, or prevent us from commercializing, our
therapeutic candidates, which could severely harm our business. Even if we are successful in defending against these claims, litigation could result in
substantial costs and be a distraction to management.

If our trademarks and trade names are not adequately protected, then we may not be able to build name recognition in our markets of interest and our
business may be materially and adversely affected.

Our trademarks or trade names may be challenged, infringed, circumvented, or declared generic or determined to be infringing on other marks. Any

trademark litigation could be expensive. We may not be able to protect our rights to these trademarks and trade names or may be forced to stop using these
names, which we need for name recognition by potential partners or customers in our markets of interest. If we are unable to establish name recognition
based on our trademarks and trade names, we may not be able to compete effectively and our business may be materially and adversely affected.

Third parties may independently develop similar or superior technology.

There can be no assurance others will not independently develop, or have not already developed, similar or more advanced technologies than our

technology or that others will not design around, or have not already designed around, aspects of our technology or our trade secrets developed therefrom. If
third parties develop technology similar or superior to our technology, or they successfully design around our current or future technology, our competitive
position, business prospects, and results of operations could be materially and adversely affected.

Breaches of our internal computer systems, or those of our contractors, vendors, or consultants, may place our patents or proprietary rights at risk.

The loss of preclinical data or data from any future clinical trial involving our technology, including therapeutic candidates and products, could result

in delays in our development and regulatory filing efforts and significantly increase our costs. In addition, theft or other exposure of data may interfere with
our ability to protect our intellectual property, trade secrets, and other information critical to our operations. We have experienced in the past, and may
experience in the future, unauthorized intrusions into our internal computer systems, including portions of our internal computer systems storing information
related to our platform technology, therapeutic candidates and products, and we can provide no assurances that certain sensitive and proprietary information
relating to one or more of our therapeutic candidates or products has not been, or will not in the future be, compromised. Although we have invested
significant resources to enhance the security of our computer systems, there can be no assurances we will not experience additional unauthorized intrusions
into our computer systems, or those of our CROs, vendors, contractors, and consultants, that we will successfully detect future unauthorized intrusions in a
timely manner, or that future unauthorized intrusions will not result in material adverse effects on our financial condition, reputation, or business prospects.
Payments related to the elimination of ransomware may materially affect our financial condition and results of operations.

Certain data breaches must also be reported to affected individuals and the government, and in some cases to the media, under provisions of HIPAA,

as amended by HITECH, other U.S. federal and state law, and requirements of non-U.S. jurisdictions, including the European Union Data Protection
Directive, and financial penalties may also apply.

Risks Related to Government Regulation

We may be unable to obtain U.S. or foreign regulatory approval and, as a result, may be unable to commercialize our therapeutic candidates.

Our therapeutic candidates are subject to extensive governmental regulations relating to, among other things, research, development, testing,
manufacture, quality control, approval, labeling, packaging, promotion, storage, record-keeping, advertising, distribution, sampling, pricing, sales and
marketing, safety, post-approval monitoring and reporting, and export and import of drugs. Rigorous preclinical testing and clinical trials and an extensive
regulatory approval process are required to be completed successfully in the United States and in many foreign jurisdictions before a new therapeutic can be
marketed. Satisfaction of these and other regulatory requirements is costly, time consuming, uncertain, and subject to unanticipated

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delays. It is possible none of the therapeutic candidates we may develop will obtain the regulatory approvals necessary for us or our collaborators to begin
selling them.

We have very limited experience in conducting and managing the clinical trials necessary to obtain regulatory approvals, including approval by the

FDA as well as foreign regulatory authorities, such as the EMA. The time required to obtain FDA and foreign regulatory approvals is unpredictable but
typically takes many years following the commencement of clinical trials, depending upon the type, complexity, and novelty of the therapeutic candidate. The
standards the FDA and its foreign counterparts use when regulating us are not always applied predictably or uniformly and can change. Any analysis we
perform of data from preclinical and clinical activities is subject to confirmation and interpretation by regulatory authorities, who could delay, limit, or
prevent regulatory approval. We may also encounter unexpected delays or increased costs due to new government regulations, for example, from future
legislation or administrative action, or from changes in the policy of FDA or foreign regulatory authorities during the period of product development, clinical
trials, and regulatory review by the FDA or foreign regulatory authorities. It is impossible to predict whether legislative changes will be enacted, or whether
FDA or foreign laws, regulations, guidance, or interpretations will be changed, or what the impact of such changes, if any, may be.

Because the therapeutics we are developing may represent a new class of therapeutics, the FDA and its foreign counterparts have not yet established

any definitive policies, practices, or guidelines in relation to these drugs. While we believe the therapeutic candidates we are currently developing are
regulated as new biological products under the Public Health Service Act, or PHSA, the FDA could decide to reclassify them, namely to regulate them or
other products we may develop as drugs under the Federal Food, Drug, and Cosmetic Act, or FDCA. The lack of policies, practices, or guidelines may hinder
or slow review by the FDA or foreign regulatory authorities of any regulatory filings we may submit. Moreover, the FDA or foreign regulatory authorities
may respond to these submissions by defining requirements we may not have anticipated. Such responses could lead to significant delays in the clinical
development of our therapeutic candidates. In addition, because there may be approved treatments for some of the diseases for which we may seek approval,
in order to receive regulatory approval, we may need to demonstrate through clinical trials the therapeutic candidates we develop to treat these diseases, if
any, are not only safe and effective, but safer or more effective than existing products.

Any delay or failure in obtaining required approvals could have a material adverse effect on our ability to generate revenues from the particular
therapeutic candidate for which we are seeking approval. Furthermore, any regulatory approval to market a product may be subject to limitations on the
approved uses for which we may market the product or the labeling or other restrictions. Regulatory authorities also may impose requirements for costly
post-marketing studies or clinical trials and surveillance to monitor the safety or efficacy of the therapeutic. In addition, the FDA has the authority to require
a REMS plan as part of a Biologics License Application, or BLA, or New Drug Application, or NDA, or after approval, which may impose further
requirements or restrictions on the distribution or use of an approved drug or biologic, such as limiting prescribing to certain physicians or medical centers
that have undergone specialized training, limiting treatment to patients who meet certain safe-use criteria, and requiring treated patients to enroll in a registry.
These limitations and restrictions may limit the size of the market for the therapeutic and affect coverage and reimbursement by third-party payors.

We are also subject to numerous foreign regulatory requirements governing, among other things, the conduct of clinical trials, manufacturing,

marketing authorization, pricing, and third-party reimbursement. The foreign regulatory approval process varies among countries and may include all of the
risks associated with FDA approval described above as well as risks attributable to the satisfaction of local regulations in foreign jurisdictions. Moreover, the
time required to obtain approval may differ from that required to obtain FDA approval. Approval by the FDA does not ensure approval by regulatory
authorities outside the U.S. and vice versa.

If we or our existing or future collaborators, manufacturers, or service providers fail to comply with healthcare laws and regulations, we or such other
parties could be subject to enforcement actions, which could adversely affect our ability to develop, market, and sell our therapeutics and may harm our
reputation.

Although we do not currently have any products on the market, once we begin commercializing our therapeutic candidates we will be subject to

additional healthcare statutory and regulatory requirements and enforcement by the federal, state, and foreign governments of the jurisdictions in which we
conduct our business. Healthcare providers, physicians, and third-party payors play a primary role in the recommendation and prescription of any therapeutic
candidates for which we obtain marketing approval. Our future arrangements with third-party payors and customers may expose us to broadly applicable
fraud, abuse, and other healthcare laws and regulations constraining the business or financial arrangements and relationships through which we market, sell,
and distribute the therapeutic candidates for which we obtain marketing approval. Restrictions under applicable federal and state healthcare laws and
regulations include the following:

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the U.S. federal Anti-Kickback Statute, which prohibits, among other things, persons from soliciting, receiving, offering, or providing
remuneration, directly or indirectly, to induce either the referral of an individual for a healthcare item or service, or the purchasing or ordering
of an item or service, for which payment may be made, in whole or in part, under a federal healthcare program such as Medicare or Medicaid;

the U.S. federal False Claims Act, which imposes criminal and civil penalties, including through civil whistleblower or qui tam actions,
against individuals or entities for knowingly presenting, or causing to be presented, to the federal government, false or fraudulent claims for
payment or making a false statement to avoid, decrease, or conceal an obligation to pay money to the federal government. In addition, the
government may assert a claim including items and services resulting from a violation of the federal Anti-Kickback Statute constitutes a false
or fraudulent claim for purposes of the False Claims Act;

state all-payor fraud laws, which impose criminal and civil liability for executing a scheme to defraud any healthcare benefit program, or
knowingly and willfully falsifying, concealing, or covering up a material fact or making any materially false statement in connection with the
delivery of or payment for healthcare benefits, items or services; similar to the federal Anti-Kickback Statute, a person or entity does not need
to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation;

HIPAA, HITECH, and their implementing regulations, which impose obligations on certain covered entity healthcare providers, health plans,
and healthcare clearinghouses as well as their business associates performing certain services involving the use or disclosure of individually
identifiable health information, including mandatory contractual terms, with respect to safeguarding the privacy, security, and transmission of
individually identifiable health information, and require notification to affected individuals and regulatory authorities of certain breaches of
security of individually identifiable health information;

the federal Physician Payment Sunshine Act and its implementing regulations, also referred to as “Open Payments,” issued under the Patient
Protection and Affordable Care Act, as amended by the Health Care and Education Affordability Reconciliation Act, or ACA, and any
subsequent amending legislation or executive actions, which require manufacturers of pharmaceutical and biological drugs reimbursable under
Medicare, Medicaid, and Children’s Health Insurance Programs to report to the Department of Health and Human Services all consulting fees,
travel reimbursements, research grants, and other payments, transfers of value or gifts made to physicians and teaching hospitals with limited
exceptions; and

analogous state laws and regulations, such as, state anti-kickback and false claims laws potentially applicable to sales or marketing
arrangements and claims involving healthcare items or services reimbursed by non-governmental third-party payors, including private
insurers; and some state laws require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary compliance
guidelines and the relevant compliance guidance promulgated by the federal government in addition to requiring drug manufacturers to report
information related to payments to physicians and other healthcare providers or marketing expenditures, and state laws governing the privacy
and security of health information in certain circumstances, many of which differ from each other in significant ways and often are not
preempted by HIPAA, thus complicating compliance efforts.

Ensuring our future business arrangements with third-parties comply with applicable healthcare laws and regulations could involve substantial costs.

If our operations are found to be in violation of any such requirements, we may be subject to penalties, including civil or criminal penalties, monetary
damages, the curtailment or restructuring of our operations, or exclusion from participation in government contracting, healthcare reimbursement, or other
government programs, including Medicare and Medicaid, any of which could adversely affect our financial results. Although effective compliance programs
can mitigate the risk of investigation and prosecution for violations of these laws, these risks cannot be entirely eliminated. Any action against us for an
alleged or suspected violation could cause our company to incur significant legal expenses and could divert our management’s attention from the operation of
our business, even if our defense is successful. In addition, achieving and sustaining compliance with applicable laws and regulations may be costly to us in
terms of money, time, and resources.

If we or our current or future collaborators, manufacturers, or service providers fail to comply with applicable federal, state, or foreign laws or

regulations, we could be subject to enforcement actions, which could affect our ability to develop, market, and sell our therapeutics successfully and could
harm our reputation and lead to reduced acceptance of our therapeutics by the market. These enforcement actions include, among others:

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adverse regulatory inspection findings;

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warning or untitled letters;

voluntary product recalls with public notification or medical product safety alerts to healthcare professionals;

restrictions on, or prohibitions against, marketing our therapeutics;

restrictions on, or prohibitions against, importation or exportation of our therapeutics;

suspension of review or refusal to approve pending applications or supplements to approved applications;

exclusion from participation in government-funded healthcare programs;

exclusion from eligibility for the award of government contracts for our therapeutics;

FDA debarment;

suspension or withdrawal of therapeutic approvals;

seizures or administrative detention of therapeutics;

injunctions; and

civil and criminal penalties and fines.

Any therapeutics we develop may become subject to unfavorable pricing regulations, third-party coverage and reimbursement practices, or healthcare
reform initiatives, thereby harming our business.

The regulations governing marketing approvals, pricing, coverage, and reimbursement for new drugs and biologics vary widely from country to
country. Many countries require approval of the sale price of a drug before it can be marketed. In many countries, the pricing review period begins after
marketing or product licensing approval is granted. In some foreign markets, prescription pharmaceutical pricing remains subject to continuing governmental
control even after initial approval is granted. Although we intend to monitor these regulations, our programs are currently in the early stages of development
and we will not be able to assess the impact of price regulations for a number of years. As a result, we might obtain regulatory approval for a product in a
particular country, but then be subject to price regulations delaying our commercial launch of the product and negatively impacting the revenues we are able
to generate from the sale of the product in that country.

Our ability to commercialize any therapeutics successfully also will depend in part on the extent to which coverage and reimbursement for these

products and related treatments will be available from government health administration authorities, private health insurers, and other organizations.
However, there may be significant delays in obtaining coverage for newly-approved therapeutics. Moreover, eligibility for coverage does not necessarily
signify a therapeutic will be reimbursed in all cases or at a rate covering our costs, including research, development, manufacture, sale, and distribution costs.
Also, interim payments for new therapeutics, if applicable, may be insufficient to cover our costs and may not be made permanent. Thus, even if we succeed
in bringing one or more therapeutics to the market, these products may not be considered cost-effective, and the amount reimbursed for any of them may be
insufficient to allow us to sell them on a competitive basis. Because our programs are in the early stages of development, we are unable at this time to
determine their cost effectiveness, coverage prospects, potential compendia listings, or the likely level or method of reimbursement, if covered.

It is equally difficult for us to predict how Medicare coverage and reimbursement policies will be applied to our products in the future, and coverage

and reimbursement under different federal healthcare programs are not always consistent. Medicare reimbursement rates may also reflect budgetary
constraints placed on the Medicare program.

Third-party payors often rely upon Medicare coverage policies and payment limitations in setting their own reimbursement rates. These coverage

policies and limitations may rely, in part, on compendia listings for approved therapeutics. Our inability to promptly obtain relevant compendia listings,
coverage, and adequate reimbursement from both government-funded and private payors for new therapeutics we develop and for which we obtain regulatory
approval could have a material adverse effect on our operating results, our ability to raise capital needed to commercialize products, and our financial
condition.

We believe the efforts of governments and third-party payors to contain or reduce the cost of healthcare, and legislative and regulatory proposals to

broaden the availability of healthcare, will continue to affect the business and financial condition of pharmaceutical and biopharmaceutical companies. A
number of legislative and regulatory changes in the healthcare system in the United States and other major healthcare markets have been proposed, and such
efforts have

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expanded substantially in recent years. These developments could, directly or indirectly, affect our ability to sell our products, if approved, at a favorable
price. In addition, third-party payors who reimburse patients or healthcare providers, such as government and private insurance plans, are seeking greater
upfront discounts, additional rebates, and other concessions to reduce the prices for therapeutics. If the price we are able to charge for any therapeutics we
develop, or the reimbursement provided for such products, is inadequate, our return on investment could be adversely affected.

Pursuant to health reform legislation and related initiatives, the Centers for Medicare and Medicaid Services, or CMS, are working with various
healthcare providers to develop, refine, and implement Accountable Care Organizations, or ACOs, and other innovative models of care for Medicare and
Medicaid beneficiaries, including the Bundled Payments for Care Improvement Initiative, the Comprehensive Primary Care Initiative, the Duals
Demonstration, and other models. The continued development and expansion of ACOs and other innovative models of care will have an uncertain impact on
any future reimbursement we may receive for approved therapeutics administered by such organizations.

In addition, in recent years, the U.S. Congress has enacted various laws seeking to reduce the federal debt level and contain healthcare expenditures.

For example, as a result of the Budget Control Act of 2011 and the Bipartisan Budget Act of 2015, an annual 2% reduction to Medicare payments that took
effect in 2013 has been extended through 2025. These across-the-board spending cuts could adversely affect our future revenues, earnings, and cash flows.

From time to time, legislation is drafted, introduced, and passed in Congress that could significantly change the statutory provisions governing

coverage, reimbursement, and marketing of products regulated by CMS or other government agencies. In addition to new legislation, CMS coverage and
reimbursement policies are often revised or interpreted in ways that may significantly affect our business and our products. In particular, we expect the
Administration and Congress will seek to modify, repeal, or otherwise invalidate all, or certain provisions of, U.S. healthcare legislation. A number of
additional executive orders have been issued affecting, or potentially affecting, the ACA and other aspects of the healthcare market in the United States. There
is a high degree of uncertainty with respect to the impact President Trump’s Administration and Congress may have, and any changes will likely take time to
unfold. Such reforms could have an adverse effect on anticipated revenues from therapeutic candidates we may successfully develop and for which we may
obtain regulatory approval and may affect our overall financial condition and ability to develop therapeutic candidates. However, we cannot predict the
ultimate content, timing, or effect of any healthcare reform legislation or executive orders or the impact of potential legislation and executive orders on us.

The healthcare industry is heavily regulated in the U.S. at the federal, state, and local levels, and our failure to comply with applicable requirements may
subject us to penalties and negatively affect our financial condition.

As a healthcare company, our operations, clinical trial activities, and interactions with healthcare providers will be subject to extensive regulation in

the United States, particularly if we receive FDA approval for any of our products in the future. For example, if we receive FDA approval for a therapeutic
for which reimbursement is available under a federal healthcare program, it would be subject to a variety of federal laws and regulations, including those
prohibiting the filing of false or improper claims for payment by federal healthcare programs, prohibiting unlawful inducements for the referral of business
reimbursable by federal healthcare programs, and requiring disclosure of certain payments or other transfers of value made to U.S.-licensed physicians and
teaching hospitals. We are not able to predict how government authorities will interpret these laws. They may challenge our practices and activities under one
or more of these laws. If our past or present operations are found to be in violation of any of these laws, we could be subject to civil and criminal penalties,
which could hurt our business, operations, and financial condition.

Similarly, some state laws prohibit, among other offenses, knowingly and willfully executing a scheme to defraud any health care benefit program,

including private payors, or falsifying, concealing, or covering up a material fact or making any materially false, fictitious, or fraudulent statement in
connection with the delivery of or payment for items or services under a health care benefit program. We may also be subject to the privacy and security
provisions of HIPAA, as amended by HITECH, which restricts the use and disclosure of patient-identifiable health information, mandates the adoption of
standards relating to the privacy and security of patient-identifiable health information, and requires the reporting of certain security breaches to healthcare
provider customers with respect to such information. Additionally, many states have enacted similar laws imposing more stringent requirements on entities
like us. Failure to comply with applicable laws and regulations could result in substantial penalties and adversely affect our financial condition and results of
operations.

Our ability to obtain services, reimbursement, or funding from the federal government may be impacted by possible reductions in federal spending.

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The U.S. federal budget remains in flux and could, among other things, cut Medicare payments to providers. The Medicare program is frequently

mentioned as a target for spending cuts. The full impact on our business of any future cuts in Medicare or other programs is uncertain. In addition, we cannot
predict any impact President Trump’s administration and Congress may have on the federal budget. If federal spending is reduced, anticipated budgetary
shortfalls may also impact the ability of relevant agencies such as the FDA or the National Institutes of Health to continue to function at current levels.
Amounts allocated to federal grants and contracts may be reduced or eliminated. These reductions may also impact the ability of relevant agencies to timely
review and approve drug research and development, manufacturing, and marketing activities, which may delay our ability to develop, market, and sell any
therapeutics we may develop.

If any of our therapeutic candidates receives marketing approval and we or others later identify undesirable side effects caused by the therapeutic
candidate, our ability to market and derive revenue from the therapeutic candidates could be compromised.

In the event any of our therapeutic candidates receive regulatory approval and we or others identify undesirable side effects, adverse events, or other

problems caused by one of our therapeutics, any of the following adverse events could occur, which could result in the loss of significant revenue to us and
materially and adversely affect our results of operations and business:

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regulatory authorities may withdraw their approval of the product or seize the product;

we may need to recall the therapeutic or change the way the therapeutic is administered to patients;

additional restrictions may be imposed on the marketing of the particular therapeutic or the manufacturing processes for the therapeutic or any
component thereof;

we may not be able to secure or maintain adequate coverage and reimbursement for our proprietary therapeutic candidates from government
(including U.S. federal health care programs) and private payors;

we may lose or see adverse alterations to compendia listings or treatment protocols specified by accountable care organizations;

we may be subject to fines, restitution, or disgorgement of profits or revenues, injunctions, or the imposition of civil penalties or criminal
prosecution;

regulatory authorities may require the addition of labeling statements, such as a “black box” warning, or equivalent, or a contraindication;

regulatory authorities may require us to implement a REMS plan, or to conduct post-marketing studies or clinical trials and surveillance to
monitor the safety or efficacy of the product;

we may be required to create a Medication Guide outlining the risks of such side effects for distribution to patients;

we could be sued and held liable for harm caused to patients;

the therapeutic may become less competitive; and

our reputation may suffer.

Significant developments stemming from the United Kingdom’s recent referendum on membership in the European Union could have a material adverse
effect on us.

In June 2016, the United Kingdom held a referendum and voted in favor of leaving the European Union. This referendum has created political and
economic uncertainty, particularly in the United Kingdom and the European Union, and this uncertainty may last for years. Any business we conduct, now
and in the future, in the United Kingdom, the European Union, and worldwide could be affected during this period of uncertainty, and perhaps longer, by the
impact of the United Kingdom’s referendum. There are many ways in which our business could be affected, only some of which we can identify as of the
date of this filing.

The referendum, and the likely withdrawal of the United Kingdom from the European Union it triggers, has caused and, along with events

potentially occurring in the future as a consequence of the United Kingdom’s withdrawal, including the possible breakup of the United Kingdom, may
continue to cause significant volatility in global financial markets, including in global currency and debt markets. This volatility could cause a slowdown in
economic activity in the United

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Kingdom, Europe, or globally, which could adversely affect our operating results and growth prospects. In addition, our business could be negatively affected
by new trade agreements between the United Kingdom and other countries, including the United States, and by the possible imposition of trade or other
regulatory barriers in the United Kingdom.

It is currently unknown how regulations affecting clinical trials, the approval of our future products, and the sale of these products will be affected by

this referendum either in the United Kingdom or elsewhere in Europe.

These possible negative impacts, and others resulting from the United Kingdom’s actual or threatened withdrawal from the EU, may adversely affect

our operating results and growth prospects.

Risks Related to Ownership of Our Common Stock

Our stock price may be volatile and an active, liquid and orderly trading market may not develop for our common stock. As a result, stockholders may not
be able to resell shares at or above their purchase price.

Although our common stock is listed on NASDAQ, an active trading market for our common stock may not develop or, if it develops, may not be

sustained. The lack of an active market may impair the ability of our stockholders to sell their shares at the time they wish to sell them or at a price that they
consider reasonable, which may reduce the fair market value of their shares. Further, an inactive market may also impair our ability to raise capital by selling
our common stock should we determine additional funding is required.

The market price of our common stock could be subject to significant fluctuations. Market prices for securities of early-stage pharmaceutical,

biotechnology, and other life sciences companies have historically been particularly volatile. Some of the factors that may cause the market price of our
common stock to fluctuate following the merger include:

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our ability to obtain regulatory approvals for product candidates, and delays or failures to obtain such approvals;

the failure of any of our product candidates, if approved, to achieve commercial success;

issues in manufacturing our approved products, if any, or product candidates;

the results of current, and any future, preclinical or clinical trials of our product candidates;

the entry into, or termination of, key agreements, including key licensing, collaboration or acquisition agreements;

the initiation or material developments in, or conclusion of, litigation to enforce or defend any of our intellectual property rights or defend
against the intellectual property rights of others;

announcements by commercial partners or competitors of new commercial products, clinical progress (or the lack thereof), significant
contracts, commercial relationships, or capital commitments;

adverse publicity relating to our markets, including with respect to other products and potential products in such markets;

the introduction of technological innovations or new therapies competing with our potential products;

the loss of key employees;

changes in estimates or recommendations by securities analysts, if any, who cover our common stock;

general and industry-specific economic conditions potentially affecting our research and development expenditures;

changes in the structure of health care payment systems;

unanticipated serious safety concerns related to the use of any of our product candidates;

failure to meet or exceed financial and development projections we may provide to the public;

failure to meet or exceed the financial and development projections of the investment community;

the perception of the pharmaceutical industry by the public, legislators, regulators, and the investment community;

adverse regulatory decisions;

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disputes or other developments relating to proprietary rights, including patents, litigation matters, and our ability to obtain patent protection for
our technologies;

commencement of, or our involvement in, litigation;

sales of our common stock by us or our stockholders in the future;

trading volume of our common stock;

period-to-period fluctuations in our financial results; and

the other factors described in this “Risk Factors” section.

Moreover, the stock markets in general have experienced substantial volatility that has often been unrelated to the operating performance of
individual companies or the biotechnology sector. These broad market fluctuations may also adversely affect the trading price of our common stock.

In the past, following periods of volatility in the market price of a company’s securities, stockholders have often instituted class action securities

litigation against those companies. Such litigation, if instituted, could result in substantial costs and diversion of management attention and resources, which
could significantly harm our business and reputation.

Our officers and directors, and their respective affiliates, have a controlling influence over our business affairs and may make business decisions with
which stockholders disagree and which may adversely affect the value of their investment.

Our executive officers and directors together with their respective affiliates, own approximately 68% of our outstanding common stock as of

December 31, 2017. As a result, if some of these persons or entities act together, they will have the ability to exercise significant influence over matters
submitted to the stockholders for approval, including the election of directors, amendments to the certificate of incorporation and bylaws and the approval of
any strategic transaction requiring the approval of the stockholders. These actions may be taken even if they are opposed by other stockholders. This
concentration of ownership may also have the effect of delaying or preventing a change of control of our company or discouraging others from making tender
offers for our shares, which could prevent our stockholders from receiving a premium for their shares. Some of these persons or entities who make up our
principal stockholders may have interests different from other stockholders. The significant concentration of stock ownership may adversely affect the trading
price of our common stock due to investors’ perception that conflicts of interest may exist or arise.

Future sales, or the perception of future sales, of a substantial amount of our common stock could depress the trading price of our common stock.

Our stock price could decline as a result of sales of a large number of shares of our common stock or the perception that these sales could occur.

These sales, or the possibility that these sales may occur, also might make it more difficult for us to sell equity securities in the future at a time and at a price
that we deem appropriate.

The resale of approximately 10.3 million shares was previously prohibited as a result of lock-up agreements entered into by certain of our
stockholders in connection with our merger with Alpine Immune Sciences, Inc. in July 2017; however, subject to applicable securities law restrictions, these
shares became eligible for sale in the public market beginning January 21, 2018. In addition, the shares subject to outstanding options and warrants, of which
options and warrants to purchase 377,550 shares and 14,039 shares, respectively, were exercisable as of December 31, 2017, and the shares reserved for
future issuance under our equity incentive plans will become available for sale immediately upon the exercise of such options.

We also register the offer and sale of all shares of common stock that we may issue under our equity incentive plans. Once we register the offer and
sale of shares for the holders of registration rights and option holders, they can be freely sold in the public market upon issuance, subject to any related lock-
up agreements or applicable securities laws.

In addition, in the future, we may issue additional shares of common stock or other equity or debt securities convertible into common stock in
connection with a financing, acquisition, litigation settlement, employee arrangements or otherwise. Any such future issuance, including any issuances
pursuant to our “at the market” equity offering program under our sales agreement with Cowen, could result in substantial dilution to our existing
stockholders and could cause our stock price to decline.

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We will have broad discretion over the use of the proceeds to us from our “at the market” equity offering program and may apply the proceeds to uses that
do not improve our operating results or the value of your securities.

We will have broad discretion to use the net proceeds to us from our “at the market” equity offering program put into place in July 2016, and
investors will be relying solely on the judgment of our board of directors and management regarding the application of these proceeds. Although we expect to
use the net proceeds from our “at the market” equity offering program for general corporate purposes, we have not allocated these net proceeds for specific
purposes. Investors will not have the opportunity, as part of their investment decision, to assess whether the proceeds are being used appropriately. Our use of
the proceeds may not improve our operating results or increase the value of the securities offered pursuant to the “at the market” equity offering program.

The JOBS Act allows us to postpone the date by which we must comply with certain laws and regulations intended to protect investors and to reduce the
amount of information we provide in our reports filed with the SEC. We cannot be certain if this reduced disclosure will make our common stock less
attractive to investors.

The JOBS Act is intended to reduce the regulatory burden on “emerging growth companies.” As defined in the JOBS Act, we qualify as an

“emerging growth company” and could remain an “emerging growth company” until as late as December 31, 2020. For so long as we are an “emerging
growth company,” we will, among other things:

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not be required to comply with the auditor attestation requirements of Section 404(b) of Sarbanes- Oxley;

not be required to hold a nonbinding advisory stockholder vote on executive compensation pursuant to Section 14A of the Exchange Act;

not be required to seek stockholder approval of any golden parachute payments not previously approved pursuant to Section 14A of the
Exchange Act;

be exempt from any rule adopted by the Public Company Accounting Oversight Board, requiring mandatory audit firm rotation or a
supplemental auditor discussion and analysis; and

be subject to reduced disclosure obligations regarding executive compensation in our periodic reports and proxy statements.

We have previously decided to opt out of an extended transition period under the JOBS Act that permits an emerging growth company to delay the
adoption of certain accounting standards until those standards would otherwise apply to private companies. Our decision is irrevocable. As a result, we will
adopt new or revised accounting standards on the relevant dates on which adoption of such standards is required for other companies.

Furthermore, if we take advantage of some or all of the reduced disclosure requirements above, investors may find our common stock less attractive,

which may result in a less active trading market for our common stock and greater stock price volatility.

If we fail to maintain proper and effective internal controls, our ability to produce accurate financial statements on a timely basis could be impaired.

We are subject to the reporting requirements of the Exchange Act, the Sarbanes-Oxley Act and the rules and regulations of The NASDAQ Stock

Market LLC. The Sarbanes-Oxley Act requires, among other things, that we maintain effective disclosure controls and procedures and internal control over
financial reporting. We must perform system and process evaluation and testing of our internal control over financial reporting to allow management to report
on the effectiveness of our internal controls over financial reporting in our Annual Report on Form 10-K filing for that year, as required by Section 404 of the
Sarbanes-Oxley Act.

We may discover weaknesses in our system of internal financial and accounting controls and procedures that could result in a material misstatement

of our financial statements. Our internal control over financial reporting will not prevent or detect all errors and all fraud. An internal control system, no
matter how well designed and operated, can provide only reasonable, not absolute, assurance that the internal control system’s objectives will be met.
Because of the inherent limitations in all internal control systems, no evaluation of internal controls can provide absolute assurance that misstatements due to
error or fraud will not occur or that all internal control issues and instances of fraud will be detected.

If we are not able to comply with the requirements of Section 404 of the Sarbanes- Oxley Act, or if we are unable to maintain proper and effective

internal controls, we may not be able to produce timely and accurate financial statements. If

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that were to happen, the market price of our common stock could decline and we could be subject to sanctions or investigations by The NASDAQ Stock
Market LLC, the SEC, or other regulatory authorities.

Our disclosure controls and procedures may not prevent or detect all errors or acts of fraud.

Our disclosure controls and procedures are designed to reasonably ensure that information required to be disclosed by us in reports we file or
submits under the Exchange Act is accumulated and communicated to management and recorded, processed, summarized and reported within the time
periods specified in the rules and forms of the SEC. We believe that any disclosure controls and procedures as well as internal controls and procedures, no
matter how well-conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are and will be met.
These inherent limitations include the realities that judgments in decision-making can be faulty and that breakdowns can occur because of simple error or
mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more people or by an unauthorized
override of the controls. Accordingly, because of the inherent limitations in our control system, misstatements due to error or fraud may occur and not be
detected.

We will continue to incur costs and demands upon management as a result of complying with the laws and regulations affecting public companies.

We will incur significant legal, accounting, and other expenses Alpine did not incur as a private company, including costs associated with public

company reporting requirements. We will also incur costs associated with corporate governance requirements, including requirements under the Sarbanes-
Oxley Act, as well as new rules implemented by the SEC and The NASDAQ Stock Market LLC. Although the JOBS Act may for a limited period of time
somewhat lessen the cost of complying with these additional regulatory and other requirements, we nonetheless expect that these rules and regulations will
increase our legal and financial compliance costs and to make some activities more time-consuming and costly. For example, our management team will
consist of the executive officers of Alpine prior to the merger, some of whom may not have previously managed and operated a public company. These
executive officers and other personnel will need to devote substantial time to gaining expertise regarding operations as a public company and compliance
with applicable laws and regulations. These rules and regulations may also make it difficult and expensive for us to obtain directors and officer’s liability
insurance. As a result, it may be more difficult for us to attract and retain qualified individuals to serve on our board of directors or as executive officers of
our company, which may adversely affect investor confidence in us and could cause our business or stock price to suffer.

Anti-takeover provisions in our charter documents and under Delaware or Washington law could discourage, delay or prevent a change in control of our
company, limit attempts by our stockholders to replace or remove our current management and may affect the trading price of our common stock.

Our corporate documents contain provisions that may delay or discourage transactions involving an actual or potential change in our control or

change in our management, including transactions in which stockholders might otherwise receive a premium for their shares, or transactions that our
stockholders might otherwise deem to be in their best interests. Therefore, these provisions could adversely affect the price of our stock. Among other things,
our certificate of incorporation and bylaws:

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stagger the terms of our board of directors and require 66 and 2/3% stockholder voting to remove directors, who may only be removed for
cause;

provide that the authorized number of directors may be changed only by resolution of the board of directors;

provide that all vacancies, including newly-created directorships, may, except as otherwise required by law, be filled by the affirmative vote of
a majority of directors then in office, even if less than a quorum;

authorize our board of directors to issue “blank check” preferred stock and to determine the rights and preferences of those shares, which may
be senior to our common stock, without prior stockholder approval;

establish advance notice requirements for nominating directors and proposing matters to be voted on by stockholders at stockholders’
meetings;

prohibit our stockholders from calling a special meeting and prohibit stockholders from acting by written consent;

require 66 and 2/3% stockholder voting to effect certain amendments to our certificate of incorporation and bylaws; and

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prohibit cumulative voting in the election of directors, which limits the ability of minority stockholders to elect director candidates.

In addition, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporation Law,

which generally prohibits a Delaware corporation from engaging in any of a broad range of business combinations with any “interested” stockholder for a
period of three years following the date on which the stockholder became an “interested” stockholder. Likewise, because our principal executive offices are
located in Washington, the anti-takeover provisions of the Washington Business Corporation Act may apply to us under certain circumstances now or in the
future. These provisions prohibit a “target corporation” from engaging in any of a broad range of business combinations with any stockholder constituting an
“acquiring person” for a period of five years following the date on which the stockholder became an “acquiring person.” These provisions could discourage,
delay or prevent a transaction involving a change in control of our company. These provisions could also discourage proxy contests and make it more difficult
for stockholders to elect directors of their choosing and cause us to take other corporate actions our stockholders desire.

Claims for indemnification by our directors and officers may reduce our available funds to satisfy successful third-party claims against us and may
reduce the amount of available cash.

Our amended and restated certificate of incorporation provides that we will indemnify our directors to the fullest extent permitted by Delaware law.

In addition, as permitted by Section 145 of the DGCL, our amended and restated bylaws and our indemnification agreements that we have entered

into with our directors and officers provide that:

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we will indemnify our directors and officers for serving us in those capacities or for serving other business enterprises at our request, to the
fullest extent permitted by Delaware law. Delaware law provides that a corporation may indemnify such person if such person acted in good
faith and in a manner such person reasonably believed to be in or not opposed to the best interests of the corporation and, with respect to any
criminal proceeding, had no reasonable cause to believe such person’s conduct was unlawful.

we may, in our discretion, indemnify other employees and agents in those circumstances where indemnification is permitted by applicable law.

we are required to advance expenses, as incurred, to our directors and officers in connection with defending a proceeding, except that such
directors or officers shall undertake to repay such advances if it is ultimately determined that such person is not entitled to indemnification.

we will not be obligated pursuant to our amended and restated bylaws to indemnify any director or officer in connection with any proceeding
(or part thereof) initiated by such person unless the proceeding was authorized in the specific case by our board of directors or such
indemnification is required to be made pursuant to our amended and restated bylaws.

The rights conferred in our amended and restated bylaws are not exclusive, and we are authorized to enter into indemnification agreements
with our directors, officers, employees and agents and to obtain insurance to indemnify such persons.

we may not retroactively amend our amended and restated bylaw provisions to reduce our indemnification obligations to our directors or
officers.

As a result, if we are required to indemnify one or more of our directors or officers, it may reduce our available funds to satisfy successful third-party

claims against us, may reduce the amount of available cash and may have a material adverse effect on our business and financial condition.

Our amended and restated certificate of incorporation designates the Court of Chancery of the State of Delaware as the sole and exclusive forum for
certain types of actions and proceedings that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain a favorable
judicial forum for disputes with us or our directors, officers, employees or agents.

Our amended and restated certificate of incorporation provides that, unless we consent in writing to an alternative forum, the Court of Chancery of

the State of Delaware will be the sole and exclusive forum for any derivative action or proceeding brought on our behalf, any action asserting a claim of
breach of a fiduciary duty owed by any of our directors, officers, employees or agents to us or our stockholders, any action asserting a claim arising pursuant
to any provision of the

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DGCL, our amended and restated certificate of incorporation or our amended and restated bylaws or any action asserting a claim that is governed by the
internal affairs doctrine, in each case subject to the Court of Chancery having personal jurisdiction over the indispensable parties named as defendants therein
and the claim not being one which is vested in the exclusive jurisdiction of a court or forum other than the Court of Chancery or for which the Court of
Chancery does not have subject matter jurisdiction. Any person purchasing or otherwise acquiring any interest in any shares of our common stock shall be
deemed to have notice of and to have consented to this provision of our amended and restated certificate of incorporation. This choice of forum provision may
limit our stockholders’ ability to bring a claim in a judicial forum that it finds favorable for disputes with us or our directors, officers, employees or agents,
which may discourage such lawsuits against us and our directors, officers, employees and agents even though an action, if successful, might benefit our
stockholders. Stockholders who do bring a claim in the Court of Chancery could face additional litigation costs in pursuing any such claim, particularly if
they do not reside in or near Delaware. The Court of Chancery may also reach different judgments or results than would other courts, including courts where
a stockholder considering an action may be located or would otherwise choose to bring the action, and such judgments or results may be more favorable to us
than to our stockholders. Alternatively, if a court were to find this provision of our amended and restated certificate of incorporation inapplicable to, or
unenforceable in respect of, one or more of the specified types of actions or proceedings, we may incur additional costs associated with resolving such matters
in other jurisdictions, which could have a material adverse effect on our business, financial condition or results of operations.

We do not expect to pay any dividends on our common stock for the foreseeable future.

We currently expect to retain all future earnings, if any, for future operations and expansion, and have no current plans to pay any cash dividends to

holders of our common stock for the foreseeable future. Any decision to declare and pay dividends in the future will be made at the discretion of our board of
directors and will depend on, among other things, our results of operations, financial condition, cash requirements, contractual restrictions and other factors
that our board of directors may deem relevant. As a result, stockholders may not receive any return on an investment in our common stock unless
stockholders sell our common stock for a price greater than that which they paid for it.

If equity research analysts do not publish research or reports, or publish unfavorable research or reports, about us, our business or our market, our stock
price and trading volume could decline.

The trading market for our common stock will be influenced by the research and reports that equity research analysts publish about us and our

business. Equity research analysts may elect not to provide research coverage of our common stock or discontinue existing research coverage, and such lack
of research coverage may adversely affect the market price of our common stock. We do not have any control over the analysts or the content and opinions
included in their reports. The price of our common stock could decline if one or more equity research analysts downgrade our stock or issue other unfavorable
commentary or research. If one or more equity research analysts ceases coverage of us or fails to publish reports regularly, demand for our common stock
could decrease, which in turn could cause our stock price or trading volume to decline.

NASDAQ may delist our common stock from its exchange, which could limit investors’ ability to make transactions in our securities and subject us to
additional trading restrictions.

Our common shares are listed on NASDAQ under the trading symbol “ALPN.” Our securities may fail to meet the continued listing requirements to

be listed on NASDAQ. If NASDAQ delists our common shares from trading on its exchange, we could face significant material adverse consequences,
including:

•

•

•

•

•

significant impairment of the liquidity for our common stock, which may substantially decrease the market price of our common stock;

a limited availability of market quotations for our securities;

a determination that our common stock qualifies as a “penny stock” which will require brokers trading in our common stock to adhere to more
stringent rules and possibly resulting in a reduced level of trading activity in the secondary trading market for our common stock;

a limited amount of news and analyst coverage for our company; and

a decreased ability to issue additional securities or obtain additional financing in the future.

64

 
 
 
 
 
Item 1B. Unresolved Staff Comments.

None.

Item 2. Properties.

We lease a facility containing our research and development, laboratory, and office space, which consists of approximately 11,158 square feet located

at 201 Elliott Avenue West, Seattle, Washington.

In January 2018, we entered into a lease amendment for approximately 6,184 square feet of additional office and laboratory space adjacent to our

existing leased premises in Seattle, Washington.

The lease expires on December 31, 2019 and has two options to extend the lease term with each option enabling us to extend the lease term by twelve

months.

Item 3. Legal Proceedings.

We are not engaged in any material legal proceedings. From time to time, we may become involved in litigation relating to claims arising from the

ordinary course of business. We believe that there are no claims or actions pending against us currently, the ultimate disposition of which would have a
material adverse effect on our consolidated results of operation, financial condition or cash flows.

Item 4. Mine Safety Disclosures.

Not applicable.

65

PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.

Market Information

Our common stock is traded on The NASDAQ Global Market under the symbol “ALPN.” From June 17, 2015 through July 24, 2017, our common

stock was traded under the symbol “NVLS.” On July 24, 2017, in connection with the business combination of Nivalis Therapeutics, Inc. and Alpine Immune
Sciences, Inc., we completed a 1-for-4 reverse stock split. Commencing on July 25, 2017, our common stock began trading on The NASDAQ Global Market
under the symbol “ALPN.” The share-related information presented in this Annual Report on Form 10-K, including the high and low sales prices for our
common stock as reported on The NASDAQ Global Market and set forth in the table below, has been adjusted to reflect the reverse stock split.

Year Ended December 31, 2017
Fourth Quarter
Third Quarter
Second Quarter
First Quarter

Year Ended December 31, 2016
Fourth Quarter
Third Quarter
Second Quarter
First Quarter

Holders

HIGH

LOW

  $
  $
  $
  $

  $
  $
  $
  $

12.87    $
11.95    $
12.16    $
14.52    $

32.44    $
37.40    $
20.98    $
30.72    $

9.62 
7.20 
8.20 
8.24

8.00 
16.84 
15.16 
14.72

As of March 20, 2018, we have approximately 27 stockholders of record for our common stock, which excludes stockholders whose shares were held

in nominee or street name accounts through brokers.

Dividends

We have never declared or paid any cash dividends on our capital stock and do not anticipate paying any cash dividends in the foreseeable future.

Payment of cash dividends, if any, in the future will be at the discretion of our board of directors and will depend on then-existing conditions, including our
financial condition, operating results, contractual restrictions, capital requirements, business prospects and other factors our board of directors may deem
relevant.

Stock Performance Graph

As a “smaller reporting company,” as defined by Rule 12b-2 of the Exchange Act, and pursuant to Instruction 6 to Item 201(e) of Regulation S-K we

are not required to provide the stock performance graph.

Recent Sales of Unregistered Securities

None

Use of Proceeds from Initial Public Offering

Not applicable.

66

 
 
 
 
 
 
 
 
    
 
  
 
 
 
   
   
   
 
 
 
Issuer Purchases of Equity Securities

The following table summarizes stock repurchases during the three months ended December 31, 2017:

Period

December 1, 2017 to December 31, 2017 (1)
Total

Total Number of Shares
Purchased

Average Price Paid Per
Share

Total Number of Shares
Purchased as Part of
Publicly Announced Plans
or Programs

Minimum Number of
Shares that May be
Purchased Under the
Plans or Programs

50,467    $
50,467    $

0.00201   
0.00201   

—   
—   

— 
—

(1) On December 21, 2017, in connection with the voluntary departure of one of our former employees and pursuant to the terms of a common stock
purchase agreement, we exercised an option to repurchase 50,467 shares of our common stock acquired by our former employee that had not yet
vested pursuant to the terms of the common stock purchase agreement. The price per share paid by us was equal to the original purchase price
per share paid by our former employee.

Item 6. Selected Financial Data.

Statement of Operations Data:

Collaboration revenue
Operating expenses:

Research and development
General and administrative

Total operating expenses
Loss from operations
Other income (expense)

Bargain purchase gain (1)
Interest expense
Interest and other income

Income (loss) before taxes
Income tax benefit (expense)
Basic and diluted net loss attributable to
   common stockholders

Basic and diluted net loss per share applicable to common stockholders

Weighted-average shares used to compute basic and diluted net loss per
   share attributable to common stockholders

2017

December 31,
2016

2015

(in thousands, except share and per share amounts)

  $

1,731 

 $

2,950    $

10,626 
6,079 
16,705 
(14,974)

6,601 
(152)
542 
(7,983)
200 

2,989   
1,149   
4,138   
(1,188)  

—   
—   
22   
(1,166)  
(66)  

  $

  $

(7,783)

 $

(1.20)   $

(1,232)   $

(2.18)   $

492 

422 
441 
863 
(371)

— 
— 
2 
(369)
— 

(369)

(0.74)

6,481,665   

564,816   

496,900

(1) The bargain purchase gain relates solely to the excess of the estimated fair values of net assets acquired over the acquisition consideration paid

for Nivalis.

Balance Sheet Data:

Cash and cash equivalents
Short-term investments
Working capital
Total assets
Total liabilities
Convertible preferred stock
Accumulated deficit
Total stockholders’ equity (deficit)

2017

  $

As of December 31,
2016

(in thousands)

2015

 $

8,000 
73,240 
80,653 
85,222 
6,305 
— 
(9,384)
78,917 

11,819    $
—   
9,451   
12,595   
2,517   
11,535   
(1,601)  
(1,457)  

5,423 
— 
2,260 
5,439 
5,181 
610 
(369)
(352)

67

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
    
 
  
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
  
    
 
  
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

You should read the following discussion and analysis of our financial condition and results of operations together with our consolidated financial
statements and the related notes appearing elsewhere in this Annual Report on Form 10-K. In addition to historical information, some of the information
contained in this discussion and analysis or set forth elsewhere in this report, including information with respect to our plans and strategy for our business,
future financial performance, expense levels and liquidity sources, includes forward-looking statements that involve risks and uncertainties. You should read
the “Risk Factors” section of this report for a discussion of important factors that could cause actual results to differ materially from the results described in
or implied by the forward-looking statements contained in the following discussion and analysis.

Overview

We are a development-stage immunotherapy company focused on developing treatments for autoimmune/inflammatory diseases and cancer. Our
proprietary scientific platform produces Variant Immunoglobulin Domains (“vIgDs”), using a process known as directed evolution, to create therapeutics
potentially capable of modulating the human immune system.

Our goal is to create modern therapies targeting the immune synapse, using our directed-evolution based discovery platform to potentially treat

patients with serious conditions such as cancer and inflammatory diseases. To achieve our goal, we currently plan to:

•

•

•

•

advance our lead program ALPN-101 for the treatment of autoimmune/inflammatory diseases to clinical trials;

advance our oncology program ALPN-202 for the treatment of cancer to clinical trials;

develop our inhibitory (checkpoint) receptor agonist and V-mAb programs; and

maximize the value of our pipeline and platform via partnering activities.

Our operations to date have been limited to business planning, raising capital, developing our platform technology, identifying potential
immunotherapy candidates, and other research and development activities. To date, we have financed operations primarily through private placements of
convertible preferred stock, funds received from a license and research agreement, debt, and assets acquired upon the close of our merger with Nivalis
Therapeutics Inc. (“Nivalis”). We do not have any products approved for sale and have not generated any product sales. Since inception and through
December 31, 2017, we have raised an aggregate of $103.8 million to fund operations, of which $49.2 million was from the sale of convertible preferred
stock, $5.5 million was through a license and research agreement, $5.0 million obtained from a long-term loan, and $44.1 million in cash, cash equivalents,
and marketable securities acquired through the merger with Nivalis. As of December 31, 2017, we had cash, cash equivalents, and short-term investments
totaling $81.2 million.

Our net loss was $7.8 million, $1.2 million and $0.4 million for the years ended December 31, 2017, 2016 and 2015, respectively. We expect to

continue incurring significant expenses and operating losses for at least the next several years as we:

•

•

•

•

•

•

initiate and complete clinical trials for product candidates, including ALPN-101, a dual ICOS/CD28 antagonist program targeting
autoimmune/inflammatory disorders and ALPN-202, a CD80 vIgD-Fc, or multi PD-1 inhibitor and CD28 costimulatory vIgD targeting
cancer;

contract to manufacture and perform additional process development for our product candidates;

continue research and development efforts to build our pipeline beyond the current product candidates;

maintain, expand, and protect our intellectual property portfolio;

hire additional clinical, quality control, scientific, and management personnel; and

add operational and financial personnel to support our product development efforts and operational support applicable to operating as a public
company.

We do not expect to generate product revenue unless and until we successfully complete development of, obtain marketing approval for and

commercialize our product candidates, either alone or in collaboration with third parties. We expect these activities will take a number of years and our
success in these efforts is subject to significant uncertainty. Accordingly, we will need to raise additional capital prior to the regulatory approval and
commercialization of any of our

68

 
 
 
 
 
 
 
 
 
 
product candidates. Until such time, if ever, as we can generate substantial product revenues, we expect to finance our operating activities through public
equity or debt financings, collaborations or licenses, capital lease transactions, or other available financing transactions. However, additional capital may not
be available on reasonable terms, if at all, and if we raise additional funds through the issuance of additional equity or debt securities, it could result in
dilution to our existing stockholders and increased fixed payment obligations.

Business Combination with Nivalis

On April 18, 2017, we entered into a merger agreement (the “Merger Agreement”) with Nivalis, a public biotechnology company.  Upon the closing
of the merger, (1) a wholly-owned subsidiary of Nivalis merged with and into Alpine, with Alpine (renamed as “AIS Operating Co., Inc.”) remaining as the
surviving entity; and (2) Nivalis was renamed as “Alpine Immune Sciences, Inc.”. On July 24, 2017, the business combination of Alpine and Nivalis was
completed. Under the terms of the Merger Agreement, Alpine’s preexisting stockholders, warrantholders and optionholders received approximately 76% of
the fully-diluted shares of common stock of the combined organization in exchange for the transfer of all of Alpine’s common stock. This transaction was
consummated to provide us with increased access to sources of capital and a broader range of investors to support the clinical development of our products.
The acquired assets and liabilities of Nivalis are included in our consolidated balance sheet as of December 31, 2017 and Nivalis’ results of operations and
cash flows for the period from July 25, 2017 through December 31, 2017 are included in our consolidated statement of comprehensive income and cash flows
for the period from July 1, 2017 through December 31, 2017. See notes to the consolidated financial statements included in this Form 10-K for further
information regarding the business combination.

Financial Overview

Revenue

Collaboration and Licensing Revenue

We derive all our revenue from our License and Research Agreement (the “Collaboration Agreement”), with Kite Pharma, Inc. (“Kite”). In October

2015, we entered into the Collaboration Agreement providing Kite with access to two transmembrane immunomodulatory protein (“TIP”) programs for use in
Kite’s engineered cellular therapy programs. We received $5.5 million in upfront cash and are eligible to receive up to $530.0 million upon successful
achievement of pre-specified research, clinical, and regulatory milestones in addition to royalties on any products containing our TIPs. In the collaboration,
we provide the TIPs and perform in vitro testing, while Kite is responsible for in vivo testing, manufacturing, and clinical trials. Kite will receive an exclusive,
worldwide license to research, develop, and commercialize engineered autologous T cell therapies incorporating two TIP programs coming from our
platform.

On October 20, 2017, we entered into an amendment (the “Amendment”) with Kite to extend the research term of the Collaboration Agreement.

Under the Amendment, we are eligible to receive an additional $450,000 research support payment from Kite in two tranches (instead of a single tranche as
previously contemplated by the Collaboration Agreement). The Amendment also amended and restated the original research plan. We have adjusted our
expected recognition period of the remaining deferred upfront payments over the expected life of the amended research plan and will recognize the potential
$450,000 in additional research support only when the stated milestones have been completed.

We have recognized $5.2 million in revenue from inception through December 31, 2017 related to the Collaboration Agreement. We may generate

revenue in the future from milestone payments made pursuant to the Collaboration Agreement, or from payments from future license or collaboration
agreements, product sales, or government contracts and grants. We expect any revenue we generate will fluctuate from quarter to quarter.

Research and Development Expenses

We focus our resources on research and development activities, including the conduct of preclinical studies and product development and expense

such costs as they are incurred. Our research and development expenses consist of:

•

•

employee-related expenses, including salaries, benefits, taxes, travel, and stock-based compensation expense for personnel in research and
development functions;

expenses related to process development and production of product candidates paid to contract manufacturing organizations;

69

 
 
•

•

costs associated with preclinical activities and regulatory operations, including the cost of acquiring, developing, and manufacturing research
material; and

allocation of facilities, depreciation, and amortization of laboratory equipment and other expenses.

We incurred $10.6 million, $3.0 million and $0.4 million in research and development expenses for the years ended December 31, 2017, 2016, and

2015, respectively. We plan to increase our research and development activities for the foreseeable future as we continue to develop our platform and product
candidates.

The successful development of our platform and product candidates is highly uncertain. At this time, we cannot reasonably estimate the nature,
timing, or costs of the efforts necessary to finish developing any of our product candidates or the period in which material net cash, if any, from these product
candidates may commence. This is due to the numerous risks and uncertainties associated with developing therapeutics, including the uncertainty of:

•

•

•

•

the scope, rate of progress, expense, and results of planned clinical trials that we may conduct;

the scope, rate of progress, and expense of process development and manufacturing;

preclinical and other research activities; and

the timing of regulatory approvals.

General and Administrative Expenses

General and administrative expenses consist primarily of salaries and related costs for employees in executive, business development, and finance

functions. Other significant general and administrative expenses include professional fees for accounting and legal services, expenses associated with
obtaining and maintaining patents and other intellectual property, and allocation of facilities costs.

We expect general and administrative expenses will increase as we expand infrastructure to support operating as a public company. These increases

will include increased costs for director and officer liability insurance, costs related to the hiring of additional personnel, and increased fees for directors,
outside consultants, lawyers, and accountants. We expect to incur significant costs to comply with corporate governance, internal controls, and similar
requirements applicable to public companies.

Bargain Purchase Gain

As Alpine was the accounting acquirer in the Merger Agreement, we allocated the purchase price to the acquired tangible and intangible assets and

assumed liabilities of Nivalis based on their estimated fair values as of the acquisition date. The excess of the estimated fair values of net assets acquired over
the acquisition consideration paid was recorded as a bargain purchase gain in the consolidated statements of operations and comprehensive income (loss). The
determination of the fair values of the assets acquired and liabilities assumed requires significant judgment, including third party valuation estimates relating
to the value of the acquired in-process research and development asset (“IPR&D”).

Interest Expense

Interest expense consists of accrued interest and the amortization of the debt discount associated with our $5.0 million term loan.

Interest and Other Income

Interest income consists of interest earned on our cash, cash equivalents, and short-term investments.

Income Tax Expense

We had federal taxable income in 2016, due to acceleration of our deferred revenue balance under Rev. Proc. 2004-34. Consequently, we have

recorded current federal and state income tax payable for the year ended December 31, 2016.

70

 
 
 
 
 
 
 
Results of Operations

Comparison of Years Ended December 31, 2017 and 2016

The following table summarizes our results of operations for the years ended December 31, 2017 and 2016 (in thousands):

Collaboration revenue
Operating expenses:

Research and development
General and administrative

Total operating expenses
Loss from operations

Bargain purchase gain
Interest expense
Interest and other income

Loss before taxes
Income tax benefit (expense)
Basic and diluted net income (loss) attributable to
   common stockholders

Revenues

Years Ended December 31,

2017

2016

Increase/
(Decrease)

  $

1,731    $

2,950    $

(1,219)

10,626   
6,079   
16,705   
(14,974)  
6,601   
(152)  
542   
(7,983)  
200   

2,989   
1,149   
4,138   
(1,188)  
—   
—   
22   
(1,166)  
(66)  

7,637 
4,930 
12,567 
(13,786)
6,601 
(152)
520 
(6,817)
266 

  $

(7,783)   $

(1,232)   $

(6,551)

The $1.2 million decrease in revenues was primarily attributable to the timing of revenue recognized under our Collaboration Agreement with Kite.

Under the terms of the Collaboration Agreement, we received upfront payments of $5.5 million, which were initially recorded as deferred revenue and
expensed over the period of the research term. During the current period, the expected research term was extended pursuant to the Amendment.

Research and Development Expenses

The $7.6 million increase in research and development expenses was primarily attributable to an increase of $3.9 million in direct research, contract
manufacturing, and process development activities to support ALPN-101, an increase of $3.1 million in personnel-related expenses as a result of growth in
headcount to support ongoing discovery and development programs, and an increase of $0.6 million in allocated overhead and facilities.

General and Administrative Expenses

The $4.9 million increase in general and administrative expenses was primarily attributable to a $2.8 million increase in professional and legal service

fees to support the merger and operating as a public company, a $2.0 million increase in personnel-related expenses primarily related to an increase in
administrative headcount, and a $0.1 million increase in insurance and facility costs to support the growth and expansion of our business.

Bargain Purchase Gain

The bargain purchase gain relates solely to the excess of the estimated fair values of net assets acquired over the acquisition consideration paid for

Nivalis.

71

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Comparison of Years Ended December 31, 2016 and 2015

The following table summarizes our results of operations for the years ended December 31, 2016 and 2015 (in thousands):

Collaboration revenue
Operating expenses:

Research and development
General and administrative

Total operating expenses
Loss from operations

Bargain purchase gain
Interest expense
Interest and other income

Loss before taxes
Income tax benefit (expense)
Basic and diluted net income (loss) attributable to
   common stockholders

Revenues

Years Ended December 31,

2016

2015

Increase/
(Decrease)

  $

2,950    $

492    $

2,989   
1,149   
4,138   
(1,188)  
—   
—   
22   
(1,166)  
(66)  

422   
441   
863   
(371)  
—   
—   
2   
(369)  
—   

  $

(1,232)   $

(369)   $

2,458 

2,567 
708 
3,275 
(817)
— 
— 
20 
(797)
(66)

(863)

The $2.5 million increase in revenue was attributable to a full year of revenue recognized under the collaboration with Kite as opposed to only three

months in 2015 as the agreement was entered into in October 2015.

Research and Development Expenses

The $2.6 million increase was primarily attributable to an increase of $1.6 million in personnel-related expenses as a result of growth in headcount to
support ongoing research and development programs, $0.7 million in direct laboratory and support costs and an increase of $0.3 million in allocated overhead
for facility and equipment.

General and Administrative Expenses

The $0.7 million increase was primarily attributable to the $0.3 million increase in professional service fees to support our growth in headcount to

support ongoing operations, a $0.3 million increase in personnel-related expenses, primarily related to an increase in administrative headcount to support the
growth and expansion of our business and $0.1 million increase for facility costs.

Income Tax Expense

We had a net loss before tax of $1.2 million and $0.4 million for 2016 and 2015, respectively. We had taxable income of $0.4 million in 2016 due to
acceleration of our deferred revenue balance under Rev. Proc. 2004-34. Consequently, we recorded current federal and state income tax payable for the year-
ended December 31, 2016 of $0.1 million.

Liquidity and Capital Resources

As of December 31, 2017, we had cash, cash equivalents, and short-term investment totaling $81.2 million. We have raised an aggregate of $103.8

million to fund operations, of which $49.2 million was from the sale of convertible preferred stock, $5.5 million was through a license and research
agreement, $5.0 million advanced from a long-term loan, and $44.1 million in cash, cash equivalents, and marketable securities acquired through the merger
with Nivalis. In addition to our existing cash, cash equivalents, and marketable securities, we are eligible to receive research and development funding and to
earn milestone and other contingent payments for the achievement of defined collaboration objectives and certain development and regulatory milestones and
royalty payments under the Collaboration Agreement. Our ability to earn these milestone and contingent payments and the timing of achieving these
milestones is primarily dependent upon the outcome Kite’s research and development activities and is uncertain.

We have incurred operating losses since inception. We expect to continue to incur significant expenses and operating losses for the foreseeable future

as we continue our research and preclinical and clinical development of our product candidates; expand the scope of our current studies for our product
candidates; initiate additional preclinical, clinical or other

72

 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
studies for our product candidates, including under any collaboration agreements; change or add additional manufacturers or suppliers; seek regulatory and
marketing approvals for any of our product candidates that successfully complete clinical studies; seek to identify, evaluate and validate additional product
candidates; acquire or in-license other product candidates and technologies; maintain, protect and expand our intellectual property portfolio; attract and retain
skilled personnel; and experience any delays or encounter issues with any of the above.

Until such time as we can generate substantial product revenue, if ever, we expect to finance our cash needs through a combination equity or debt

financings and collaboration agreements. Except for any obligations of our collaborator to make milestone payments under our agreement with them, we do
not have any committed external sources of capital. To the extent that we raise additional capital through the future sale of equity or debt, the ownership
interest of our stockholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of our
existing common stockholders. If we raise additional funds through collaboration agreements in the future, we may have to relinquish valuable rights to our
technologies, future revenue streams or product candidates or grant licenses on terms that may not be favorable to us. If we are unable to raise additional
funds through equity or debt financings when needed, we may be required to delay, limit, reduce or terminate our product development or future
commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves.

Our future capital requirements are difficult to forecast and will depend on many factors, including:

•

•

•

•

•

•

•

•

•

the number and characteristics of the future product candidates we pursue either from our internal research efforts or through acquiring or in-
licensing other product candidates or technologies;

the scope, progress, results and costs of independently researching and developing any of our future product candidates, including conducting
preclinical research and clinical trials;

whether our existing collaboration generates substantial milestone payments and, ultimately, royalties on future approved products for us;

the timing of, and the costs involved in, obtaining regulatory approvals for any future product candidates we develop independently;

the cost of future commercialization activities, if any;

the cost of manufacturing our future product candidates and products, if any;

our ability to maintain our existing collaboration and to establish new collaborations, licensing or other arrangements and the financial terms
of such arrangements;

the costs of preparing, filing, prosecuting, maintaining, defending and enforcing patents, including litigation costs and the outcome of such
litigation; and

the timing, receipt and amount of sales of, or royalties on, our current or future collaborators’ product candidates, and our future products, if
any.

Based on our research and development plans and our timing expectations related to the progress of our programs, we expect that our existing cash,
cash equivalents and marketable securities as of the date of this report and research funding that we expect to receive under our existing collaboration, will
enable us to fund our operating expenses and capital expenditure requirements for at least the next 12 months. We have based this estimate on assumptions
that may prove to be wrong, and we could use our capital resources sooner than we expect. Additionally, the process of testing drug candidates in preclinical
and clinical studies is costly, and the timing of progress in these studies remains uncertain.

Financing Agreements

Prior to execution and delivery of the Merger Agreement certain holders of our Series A-1 convertible preferred stock purchased shares of our Series

A-1 convertible preferred stock. In March 2017, we issued and sold 707,330 shares of Series A convertible preferred stock and received a total of $4.0
million. In April 2017, we issued and sold 2,947,211 shares of our Series A-1 convertible preferred stock for an aggregate of $16.7 million in net proceeds. In
addition, contemporaneously with the close of the Merger certain existing stockholders of Alpine purchased 1,335,118 additional shares of Alpine’s capital
stock for an aggregate of $17.0 million in net proceeds.

In July 2016, we entered into a sales agreement with a sales agent to sell shares of our common stock through an "at the market" equity offering

program for up to $30.0 million in gross cash proceeds. The sales agreement allows us to set the

73

 
 
 
 
 
 
 
 
 
 
parameters for the sale of shares, including the number of shares to be issued, the time period during which sales are requested to be made, limits on the
number of shares that may be sold in any one trading day and a minimum price below which sales may not be made. Under the terms of the sales agreement,
commission expenses to the sales agent will be 3% of the gross sales price per share sold through the sales agent. The sales agreement shall automatically
terminate upon the issuance and sale of placement shares equaling sales proceeds of $30.0 million and may be terminated earlier by either us, or the sales
agent upon 10 days’ notice. As of December 31, 2017, approximately 5,000 shares of common stock (as adjusted to reflect the impact of our one-for-four
reverse stock split in July 2017), have been sold at an average sales price of $32.00 per share (as adjusted to reflect the impact of our one-for-four reverse
stock split in July 2017) under the sales agreement, net of offering costs of approximately $140,000. Although the sales agreement is for sales of our common
stock of up to $30.0 million in the aggregate, the amount of shares that we may sell from time to time may be limited due to our status as a smaller reporting
company and the market value of our voting and non-voting common equity held by non-affiliates.

Long-Term Financing

In December 2016, we entered into a term loan agreement with Silicon Valley Bank pursuant to which up to $5.0 million could be borrowed. On June
30, 2017, we drew down a term loan of $5.0 million pursuant to the agreement. The loan has an interest-only period expiring on July 1, 2018, at which point
we will make thirty consecutive equal monthly payments of principal (each in an amount that will fully amortize the loan), plus accrued interest. Interest
accrues at a floating per annum rate equal to the lender’s prime rate minus 1.75%. As a condition to the loan, we agreed to pay a final payment fee of 7.5%, or
$375,000, upon repayment of the loan. The final payment fee was recorded in long-term debt with an offsetting reduction in long-term debt and was
accounted for as a debt discount.

Pursuant to the loan agreement we have pledged substantially all of our assets, excluding intellectual property, as collateral. The obligations under the
loan agreement are subject to acceleration upon the occurrence of specified events of default, including a material adverse change in our business, operations
or financial or other condition. The term loan agreement contains customary conditions to borrowings, events of default and negative covenants, including
covenants that could limit our ability to, among other things, incur additional indebtedness, liens or other encumbrances, make dividends or other
distributions; buy, sell or transfer assets; engage in any new line of business; and enter into certain transactions with affiliates. We were in compliance with
our covenants as of December 31, 2017.

Cash Flows

The following is a summary of our cash flows (in thousands):

Net cash used in operating activities
Net cash used in investing activities
Net cash provided by financing activities

Net Cash (Used in) Provided by Operating Activities:

  $

2017

Years Ended December 31,
2016

2015

(16,572)   $
(29,803)  
42,688   

(3,797)   $
(782)  
10,975   

4,820 
(7)
610

Net cash used in operating activities was $16.6 million for the year ended December 31, 2017 compared to $3.8 million for the year ended December
31, 2016. The increase in cash used in operations in 2017 as compared to the 2016 period was primarily attributable to personnel-related expenses as a result
of increased headcount, increased direct contract research costs to support product development, and cash used to support the merger.

Net cash used in operating activities was $3.8 million for the year ended December 31, 2016, compared to net cash provided by operating activities of

$4.8 million for the year ended December 31, 2015. The increase in cash used in operating activities from 2015 to 2016 was primarily due to an increase in
research and development personnel-related expenses as a result of growth to support product development. For the year ended December 31, 2015, cash
provided by the Collaboration was $5.5 million and was offset by $0.9 million in operating expenses.

Net Cash Used in Investing Activities:

Net cash used in investing activities was $29.8 million for the year ended December 31, 2017 and consisted primarily of consideration acquired in the
merger, purchases and sales of short-term investments in U.S. Treasury securities, commercial paper, and corporate debt securities, and purchases of property
and equipment. Net cash used in investing

74

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
activities was $0.8 million during the year ended December 31, 2016, and primarily related to the purchase of property and equipment to build out our
laboratory at our Seattle facility.

Net cash used in investing activities was $0.8 million for the year ended December 31, 2016 and was negligible for the year ended December 31,

2015. Net cash used in investing activities for the year ended December 31, 2016 primarily related to the purchase of property and equipment to build out our
laboratory at our current Seattle facility that we moved into in 2016.

Net Cash Provided by Financing Activities:

Net cash provided by financing activities was $42.7 million for the year ended December 31, 2017 and consisted primarily of $37.7 million in
proceeds from the sale of preferred stock and $5.0 million from the advance of a long-term loan. Net cash provided by financing activities was $11.0 million
for the year ended December 31, 2016 and consisted primarily of the sale of preferred stock.

Net cash provided by financing activities was $11.0 million for the year ended December 31, 2016, compared to $0.6 million for the year ended

December 31, 2015. Net cash provided by financing activities for the periods presented primarily related to the sale of convertible preferred stock. In 2016,
we sold shares of Series Seed convertible preferred stock for proceeds of $0.6 million and shares of Series A-1 convertible preferred stock for net proceeds of
$10.3 million. In 2015, we sold shares of Series Seed convertible preferred stock for proceeds of $0.6 million.

Contractual Obligations and Contingent Liabilities

The following table summarizes our contractual obligations at December 31, 2017 (in thousands):

Operating leases
Notes payable (principal and interest)
Total

  $

  $

1,211    $
5,613   
6,824    $

605    $

1,131   
1,736    $

606    $

4,482   
5,088    $

Total

  Less than one year  

1 to 3 years

3 to 5 years

  More than 5 years  
— 
— 
—

—    $
—   
—    $

Operating leases

Operating leases represent future minimum lease payments under non-cancelable operating leases in effect as of December 31, 2017, including the

remaining lease payments for our headquarters in Seattle. The minimum lease payments above do not include real estate taxes or other leasehold-related
charges. In January 2018, we entered into a lease amendment for approximately 6,184 square feet of additional office and laboratory space adjacent to our
existing leased premises in Seattle, Washington. The lease expires on December 31, 2019 and has two options to extend the lease term with each option
enabling us to extend the lease term by twelve months. The annual base rent due under the lease is $295,000 for the first year and will increase by 3.0% each
year thereafter.  Lease payments in connection with this amendment are not included in the table above.

Inflation

We do not believe that inflation has had a material effect on our business, financial condition or results of operations in the last three fiscal years.

Off-Balance Sheet Arrangements

We did not have during the periods presented, and we do not currently have, any off-balance sheet arrangements, as defined under SEC rules.

JOBS Act

On April 5, 2012, the JOBS Act was enacted. Section 107 of the JOBS Act provides that an emerging growth company can take advantage of the

extended transition period provided in Section 7(a)(2)(B) of the Securities Act of 1933, as

75

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
amended, or the Securities Act, for complying with new or revised accounting standards. Thus, an emerging growth company can delay the adoption of
certain accounting standards until those standards would otherwise apply to private companies. We have irrevocably elected not to avail ourselves of this
extended transition period and, as a result, we will adopt new or revised accounting standards on the relevant dates on which adoption of such standards is
required for other public companies.

Critical Accounting Policies and Estimates

Our management’s discussion and analysis of our financial condition and results of operations is based on our consolidated financial statements,

which we have prepared in accordance with generally accepted accounting principles in the United States, or GAAP. The preparation of these consolidated
financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent
assets and liabilities at the date of the consolidated financial statements, as well as the reported revenues and expenses during the reporting periods. We
evaluate these estimates and judgments on an ongoing basis. We base our estimates on historical experience and on various other factors that we believe are
reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not
readily apparent from other sources. Our actual results may differ from these estimates under different assumptions or conditions.

While our significant accounting policies are more fully described in Note 2 to our consolidated financial statements appearing at the end of this
report, we believe that the following accounting policies are the most critical to fully understanding and evaluating our financial condition and results of
operations.

Business Combination

We use our best estimates and assumptions to accurately assign fair value to the tangible and intangible assets acquired and liabilities assumed at the

acquisition date. Our estimates are inherently uncertain and subject to refinement. During the measurement period, which may be up to one year from
the acquisition date, we may record adjustments to the fair value of these tangible and intangible assets acquired and liabilities assumed, with the
corresponding offset to bargain purchase gain. In addition, uncertain tax positions and tax-related valuation allowances are initially established in connection
with a business combination as of the acquisition date. Our management collects new information and reevaluates these estimates and assumptions quarterly
and records any adjustments to our preliminary estimates to bargain purchase gain during the measurement period. Upon the conclusion of the measurement
period or final determination of the fair value of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to our
consolidated statements of operations and comprehensive income (loss).

We allocated the preliminary purchase price to the acquired tangible and intangible assets and assumed liabilities of Nivalis based on their estimated

fair values as of the acquisition date. The fair value of our identifiable intangible asset is based on detailed valuations using information and assumptions
provided by management. The allocation of the purchase consideration to the assets acquired and liabilities assumed in our financial statements was finalized
as of December 31, 2017.  

Intangible Asset

Our intangible asset is our indefinite-life GSNOR inhibitor in-process research and development asset (“IPR&D”) acquired from Nivalis. The IPR&D

represents the processes, expertise, and technology employed in the development of S-nitrosoglutathione reductase (“GSNOR”) inhibitors and Nivalis’ lead
product candidate, cavosonstat. The IPR&D represents the estimated fair value as of the acquisition date of substantive in-process projects that have not
reached technological feasibility. The primary basis for determining technological feasibility of these projects is obtaining regulatory approval. The valuation
of IPR&D is determined using a discounted cash flow method. In determining the value of IPR&D, management considers, among other factors, the stage of
completion of the projects, the technological feasibility of the projects, whether the projects have an alternative future use, and the estimated residual cash
flows that could be generated from the various projects and technologies over their respective projected economic lives. The discount rate used is determined
at the time of acquisition and includes a rate of return which accounts for the time value of money, as well as risk factors reflecting the economic risk that the
projected cash flows may not be realized

We review our IPR&D at least annually for possible impairment. IPR&D is reviewed for possible impairment between annual tests if an event occurs

or circumstances change that would more likely than not reduce the fair value of the IPR&D below their carrying values. We test our IPR&D each year on
October 1. Our IPR&D asset totaled $1.5 million at December 31, 2017.

76

Accrued Liabilities

As part of the process of preparing our financial statements, we are required to estimate accruals for professional services and research and
development expenses. This process involves reviewing contracts and vendor agreements, and communicating with applicable personnel to identify services
that have been performed on our behalf. We estimate the level of service performed and the associated cost incurred for the service when we have not yet
been invoiced or otherwise notified of the actual cost. We estimate accrued liabilities as of each balance sheet date based on known facts and circumstances.

Although we do not expect our estimates to be materially different from amounts actually incurred, if our estimates of the status and timing of services
performed differ from the actual status and timing of services performed, we may report amounts that are too high or too low in any particular period. To date,
we have not experienced any significant adjustments to our estimates.

Revenue Recognition

We derive our revenue from collaboration and licensing agreements. We recognize revenue when each of the following four criteria are met:

(1) persuasive evidence of an arrangement exists; (2) products have been delivered or services have been rendered; (3) the sales price is fixed or determinable;
and (4) collectability is reasonably assured.

We recognize revenue under the Collaboration Agreement in accordance with the guidance on multiple element arrangements. Multiple elements or

deliverables may include (1) grants of, or options to obtain, intellectual property licenses; (2) research and development services; and/or (3) manufacturing or
supply services. Payments typically received under these arrangements include one or more of the following: non-refundable upfront license fees, option
exercise fees, payment for research and/or development efforts, amounts due upon the achievement of specified objectives, and/or royalties on future product
sales.

The evaluation of multiple-element arrangements requires management to make judgments about (1) the identification of deliverables; (2) whether

such deliverables are separable from other aspects of the contractual relationship; (3) the estimated selling price of each deliverable; and (4) the expected
period of performance for each deliverable. To determine the units of accounting under a multiple-element arrangement, management evaluates certain
separation criteria, including whether the deliverables have stand-alone value, based on the relevant facts and circumstances for each arrangement.
Management then estimates the selling price for each unit of accounting and allocates the arrangement consideration to each unit using the relative selling
price method. The allocated consideration for each unit of accounting is recognized based on the method most appropriate for that unit of account and in
accordance with the revenue recognition criteria detailed above. If there are deliverables in an arrangement that are not separable from other aspects of the
contractual relationship, they are treated as a combined unit of accounting, with the allocated revenue for the combined unit recognized in a manner consistent
with the revenue recognition criteria applicable to the final deliverable in the combined unit. Payments received prior to satisfying the relevant revenue
recognition criteria are recorded as deferred revenue in the accompanying consolidated balance sheets and recognized as revenue when the related revenue
recognition criteria are met.

The Collaboration Agreement provides for non-refundable milestone payments. We recognize revenue that is contingent upon the achievement of a

substantive milestone in its entirety in the period in which the milestone is achieved. A milestone is considered substantive when the consideration payable to
us for such milestone (1) is consistent with our performance necessary to achieve the milestone or the increase in value to the collaboration resulting from our
performance; (2) relates solely to our past performance; and (3) is reasonable relative to all of the other deliverables and payments within the arrangement. In
making this assessment, we consider all facts and circumstances relevant to the arrangement, including factors such as the scientific, regulatory, commercial,
and other risks that must be overcome to achieve the milestone, the level of effort and investment required to achieve the milestone and whether any portion
of the milestone consideration is related to future performance or deliverables.

We will periodically review the estimated performance periods under the Collaboration Agreement which provides for non-refundable upfront

payments and fees. We will adjust the periods over which revenue should be recognized when appropriate to reflect changes in assumptions relating to the
estimated performance periods. We could accelerate revenue recognition in the event of early termination of programs or if our expectations change.
Alternatively, we could decelerate revenue recognition if programs are extended or delayed. While such changes to our estimates have no impact on our
reported cash flows, the timing of revenue recorded in future periods could be materially impacted.

77

Stock-based Compensation

We account for all stock-based compensation granted to employees and non-employees using a fair value method. Stock-based compensation awarded

to employees and non-employees is measured at the grant date fair value for stock option grants. Stock-based compensation to employees is recognized over
the requisite service period of the awards, usually the vesting period, on a straight-line basis. Stock-based compensation awarded to non-employees is
revalued over its vesting period using a Black-Sholes option pricing model. We recognize forfeiture of awards as they occur rather than estimating the
expected forfeiture rate.

We use the Black-Scholes option pricing model to estimate the fair value of stock option grants. The Black-Scholes option pricing model relies on a

number of key assumptions to calculate estimated fair value, including the risk-free interest rate, expected life, expected volatility, and expected dividend
yield. For risk-free interest rate, we use the zero-coupon U.S. Treasury instruments security rate with a term equal to the expected life of the option. We use
the “simplified method” for options to determine the expected term of stock option granted to employees. Under this approach, the weighted-average
expected life is presumed to be the average of the vesting term and the contractual term of the option. For expected volatility, we analyzed the stock price
volatility of companies at a similar stage of development to estimate expected volatility of our stock price. Our assumed dividend yield of zero as we have
never paid cash dividends and have no present intention to pay cash dividends.

 If factors change and we employ different assumptions for estimating stock-based compensation expense in future periods, or if we decide to use a
different valuation model, the stock-based compensation expense we recognize in future periods may differ significantly from what we have recorded in the
current period and could materially affect our financial statements.

Recently Issued Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from
Contracts with Customers, as amended, which amends the guidance for revenue recognition to replace numerous industry specific requirements. ASU 2014-
09, as amended, implements a five-step process for customer contract revenue recognition focusing on transfer of control, as opposed to transfer of risk and
rewards. ASU 2014-09, as amended, also requires enhanced disclosures regarding the nature, amount, timing, and uncertainty of revenues and cash flows
from contracts with customers. Other major provisions include ensuring the time value of money is considered in the transaction price, and allowing estimates
of variable consideration to be recognized before contingencies are resolved in certain circumstances. ASU 2014-09, as amended, is effective for reporting
periods beginning after December 15, 2017. Early adoption is permitted, but not before December 15, 2016. Entities can transition to the standard either
retrospectively or as a cumulative-effect adjustment as of the date of adoption. We adopted this new standard effective January 1, 2018, on a modified
retrospective basis, which requires the cumulative effect of the adoption to be recognized as an adjustment to opening retained earnings in the first period of
adoption. The adoption of ASU No. 2014-09 did not have a material impact on recorded amounts when applied to the opening balance sheet as of January 1,
2018, and is not expected to have a material impact on the amount or timing of the future amounts of net income. Additional impacts could still result when
the standard is first applied to revenue transactions during the first quarter of 2018.

In February 2016, the FASB issued ASU No. 2016-02, Leases. ASU 2016-02 requires a lessee to separate the lease components from the non-lease
components in a contract and recognize in the statement of financial position a liability to make lease payments (the lease liability) and a right-of-use asset
representing its right to use the underlying asset for the lease term. It also aligns lease accounting for lessors with the revenue recognition guidance in ASU
2014-09. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, and is to be
applied at the beginning of the earliest period presented using a modified retrospective approach. We are continuing to evaluate the effect the standard will
have on our financial statements and related disclosures.

In August 2016, the FASB issued ASU No. 2016-15 which provides new guidance on the classification of certain cash receipts and payments in the

statement of cash flows. The new guidance is intended to reduce diversity in practice in how certain transactions are classified in the statement of cash flows.
We will be required to adopt the new guidance beginning with the first fiscal quarter of 2018; early adoption is permitted. We are currently assessing the
impact the new guidance will have on our consolidated statements of cash flows.

In May 2017, the FASB issued ASU No. 2017-09 to provide clarity and reduce both diversity in practice and cost and complexity when applying the
guidance in Compensation - Stock Compensation (Topic 718) about a change to the terms and conditions of a share-based payment award. The amendments
in this update provide guidance about which changes to the

78

terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. The amendments in this update are
effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2017. Early adoption is permitted, and
applied prospectively to modifications occurring on or after the adoption date. We do not expect the adoption of this standard to have a material impact on our
financial statements. For the year ended December 31, 2017, there were no modifications to the terms or conditions of a share-based payment award.

Recently Adopted Accounting Pronouncements

In August 2014, the FASB issued ASU No.2014-15, Disclosures of Uncertainties about an Entity’s Ability to Continue as a Going Concern. Under the

new guidance, management is required to assess an entity’s ability to continue as a going concern and to provide related footnote disclosures in certain
circumstances. The provisions of this standard are effective for annual periods ending after December 31, 2016, and for annual and interim periods thereafter.
We adopted this guidance this year and management believes our existing cash and cash equivalents as of December 31, 2017 are sufficient to fund our
operations and do not raise substantial doubt about our ability to continue as a going concern.

In March 2016, the FASB issued ASU No. 2016-09- Improvements to Employee Share-Based Payment Accounting, which simplified the accounting

for share-based payment transactions, including the income tax consequences, the calculation of diluted earnings per share, the treatment of forfeitures, the
classification of awards as either equity or liabilities, and the classification on the statement of cash flows. For public business entities, the amendments in this
update are effective for annual periods beginning after December 15, 2016 and interim periods within those annual periods. Early adoption is permitted for
any entity in any interim or annual period. We adopted ASU 2016-09 with effect from January 1, 2015. The adoption of this standard did not have an impact
on our financial statements.

In November 2016, the FASB issued ASU No. 2016-18 relating to restricted cash. The new guidance requires amounts generally described as
restricted cash and restricted cash equivalents to be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total
amounts shown on the consolidated statement of cash flows. This guidance is required to be adopted beginning with the first fiscal quarter of 2018; early
adoption is permitted. We adopted this guidance effective June 30, 2017, which required us to include restricted cash within the beginning and ending balance
of cash and cash equivalents for the year ended December 31, 2017. We had no restricted cash prior to adopting this guidance, thus we were not required to
revise prior period statements of cash flows. The adoption of this guidance does not impact our financial position or results of operations.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

We are exposed to market risk related to changes in interest rates. As of December 31, 2017, we had cash, cash equivalents, and short-term
investments of $81.2 million, consisting of deposits with commercial banks in checking, money market funds, U.S. Treasury securities, commercial paper,
and corporate debt securities with a final maturity of each security of less than one year. The primary objectives of our investment policy are to preserve
principal and maintain liquidity to meet operating needs, while also maximizing total returns in a manner that complies with our primary two objectives.

Our investment policy specifies credit quality standards for our investments and limits the amount of credit exposure to any single issue, issuer, or
type of investment. Our primary exposure to market risk is interest rate sensitivity, which is affected by changes in the general level of U.S. interest rates,
particularly because our investments are in short-term securities. We believe that we do not have any material exposure to changes in the fair value of these
assets as a result of changes in interest rates due to the short-term nature of our cash equivalents and marketable securities. Declines in interest rates, however,
would reduce future investment income. Due to the short-term duration of our investment portfolio and the low risk profile of our investments, an immediate
10% change in interest rates during any of the periods presented would not have had a material effect on the fair market value of our portfolio, or on our
financial statements.

We are subject to interest rate risk in connection with the borrowings under our term loan agreement. As of December 31, 2017, we had $5.0 million

outstanding principal amount under our term loan agreement. The term loan bears interest at a rate equal to the lender’s prime rate minus 1.75%. A 10%
change in interest rates during any of the periods presented would not have had a material effect on our interest obligations under the term loan agreement.

79

Item 8. Financial Statements and Supplementary Data.

For information regarding our financial statements and supplementary data, please refer to the Notes to the Consolidated Financial Statements included

elsewhere in this report.

As a “smaller reporting company,” as defined by Rule 12b-2 of the Exchange Act and pursuant to Article 8, Regulation X and Item 302 of Regulation S-

K, we are permitted to provide scaled Item 8 disclosure.

Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure.

None.

Item 9A. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls

and procedures as of December 31, 2017. The term "disclosure controls and procedures," as defined in Rules 13a-15(e) and 15d-15(e) under the Securities
Exchange Act of 1934, or the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be
disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods
specified in the Securities and Exchange Commission's rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures
designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and
communicated to the company's management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding
required disclosure. Our management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable
assurance of achieving their objectives and our management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and
procedures. Based on the evaluation of our disclosure controls and procedures as of December 31, 2017, our Chief Executive Officer and Chief Financial Officer
concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.

Management's Annual Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rule 13a-15(f) and Rule

15d-15(f) of the Exchange Act. Our internal control over financial reporting is a process to provide reasonable assurance regarding the reliability of financial
reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. Our internal control over
financial reporting includes those policies and procedures that:

(i)

(ii)

pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of our assets;

provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with
generally accepted accounting principles, and that our receipts and expenditures are being made only in accordance with authorizations of our
management and directors; and

(iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of our assets that could

have a material effect on the financial statements.

The effectiveness of any system of internal control over financial reporting, including ours, is subject to inherent limitations, including the exercise of

judgment in designing, implementing, operating, and evaluating the controls and procedures, and the inability to eliminate misconduct completely.
Accordingly, any system of internal control over financial reporting, including ours, no matter how well designed and operated, can only provide reasonable,
not absolute, assurances. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate
because of changes in conditions or that the degree of compliance with the policies or procedures may deteriorate. Our management assessed the effectiveness
of our internal control over financial reporting as of December 31, 2017. In making this assessment, our management used the criteria set forth by the
Committee of Sponsoring Organizations of the

80

 
 
 
Treadway Commission (COSO) Internal Control-Integrated Framework (2013). Based on our assessment using those criteria, our management has concluded
that, as of December 31, 2017, our internal control over financial reporting was effective.

Changes in Internal Control Over Financial Reporting

No significant changes in our internal control over financial reporting occurred during the fiscal quarter ended December 31, 2017, that has materially

affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Item 9B. Other Information.

None.

81

Item 10. Directors, Executive Officers and Corporate Governance.

PART III

The information required by Item 10 of Form 10-K is incorporated by reference to our Proxy Statement for the 2018 Annual Meeting of Shareholders

to be filed with the SEC within 120 days after the end of the fiscal year ended December 31, 2017.

Item 11. Executive Compensation.

The information required by Item 11 of Form 10-K is incorporated by reference to our Proxy Statement for the 2018 Annual Meeting of Shareholders

to be filed with the SEC within 120 days after the end of the fiscal year ended December 31, 2017.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

The information required by Item 12 of Form 10-K is incorporated by reference to our Proxy Statement for the 2018 Annual Meeting of Shareholders

to be filed with the SEC within 120 days after the end of the fiscal year ended December 31, 2017.

Item 13. Certain Relationships and Related Transactions, and Director Independence.

The information required by Item 13 of Form 10-K is incorporated by reference to our Proxy Statement for the 2018 Annual Meeting of Shareholders

to be filed with the SEC within 120 days after the end of the fiscal year ended December 31, 2017.

Item 14. Principal Accounting Fees and Services.

The information required by Item 14 of Form 10-K is incorporated by reference to our Proxy Statement for the 2018 Annual Meeting of Shareholders

to be filed with the SEC within 120 days after the end of the fiscal year ended December 31, 2017.

82

Item 15. Exhibits, Financial Statement Schedules.

(a)

The financial statements, schedules and exhibits filed as a part of this Annual Report on Form 10-K are as follows:

PART IV

(1)

(2)

(3)

Financial statements – The financial statements included in Item 8 are filed as part of this Annual Report on Form 10-K.

Financial Statement Schedules – All schedules have been omitted because they are not applicable or required, or the information
required to be set forth therein is included in the consolidated Financial Statements or notes thereto included in Item 8 of this Annual
Report on Form 10-K.

Exhibits – The exhibits required to be filed as part of this report are listed in the Exhibit List attached hereto and are incorporated
herein by reference.

83

 
 
 
 
Exhibit
Number

2.1†

2.2

2.3

2.4

2.5

3.1+

3.2

4.1+

4.2

4.3

4.4

4.5+

4.6+

10.1*

10.2*

10.3*

10.4*

10.5*

INDEX TO EXHIBITS

Description

 Agreement and Plan of Merger, dated as of April 18, 2017, by and
among Nivalis Therapeutics, Inc., Nautilus Merger Sub, Inc. and
Alpine Immune Sciences, Inc.

 Form of Support Agreement, by and between Nivalis Therapeutics,
Inc. and certain stockholders of Alpine Immune Sciences, Inc.

 Form of Support Agreement, by and between Alpine Immune
Sciences, Inc. and certain stockholders of Nivalis Therapeutics, Inc.

 Form of Support Agreement, by and between Alpine Immune
Sciences, Inc. and The Estate of Arnold H. Snider, III

 Form of Support Agreement, by and between Alpine Immune
Sciences, Inc. and the Deerfield Signatories

 Amended and Restated Certificate of Incorporation of the Registrant,
as amended

Form

8-K

8-K

8-K

8-K

8-K

Incorporated by Reference

File No.

Exhibit

Filing Date

001-37449

2.1

April 18, 2017

001-37449

001-37449

001-37449

001-37449

2.2

2.3

2.4

2.5

April 18, 2017

April 18, 2017

April 18, 2017

April 18, 2017

 Amended and Restated Bylaws of the Registrant

S-1

333-204127  

3.4

May 13, 2015

 Form of Common Stock Certificate of the Registrant

 Second Amended and Restated Warrant to Purchase Common Stock,
dated February 18, 2011, issued to Horizon Credit I LLC

 Second Amended and Restated Warrant to Purchase Common Stock,
dated February 18, 2011, issued to Horizon Credit II LLC

 Second Amended and Restated Investor Rights Agreement, dated
November 18, 2014

 Warrant to Purchase Shares, dated December 16, 2016, by and
between Alpine Immune Sciences, Inc. and Silicon Valley Bank

 Form of Warrant to Purchase Shares of Common Stock issued to
certain service providers on April 12, 2017 pursuant to the Amended
and Restated 2015 Stock Plan, as amended

 Nivalis Therapeutics, Inc. 2015 Equity Incentive Plan

 Form of Notice of Stock Option Grant and Stock Option Agreement
for Employees under the Nivalis Therapeutics, Inc. 2015 Equity
Incentive Plan

 Form of Notice of Stock Option Grant and Stock Option Agreement
for Non-Employee Directors under the Nivalis Therapeutics, Inc. 2015
Equity Incentive Plan

 N30 Pharmaceuticals, Inc. 2012 Stock Incentive Plan

 Form of Stock Option Agreement pursuant to N30 Pharmaceuticals,
Inc. 2012 Stock Incentive Plan

84

S-1

S-1

S-1

333-204127  

4.2

May 13, 2015

333-204127  

4.3

May 13, 2015

333-204127  

4.4

May 13, 2015

S-8

S-8

333-205220  

333-205220  

4.4

4.5

June 25, 2015

June 25, 2015

S-8

333-205220  

4.6

June 25, 2015

S-1

S-1

333-204127  

10.2

333-204127  

10.3

May 13, 2015

May 13, 2015

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
Exhibit
Number

10.6*

10.7*

10.8*

10.9*

10.10*

10.11*

10.12*

10.13*

10.14*

10.15*

10.16*

10.17*

10.18*

10.19*

10.20*

10.21*

10.22*

  Nivalis Therapeutics, Inc. Employee Stock Purchase Plan

Description

  Employment Agreement, dated as of January 1, 2015, by and between the
Registrant and Jon Congleton

  Amendment to Employment Agreement, dated as of March 6, 2015, by
and between the Registrant and Jon Congleton

  Amendment to Employment Agreement, dated as of January 12, 2017, by
and between the Registrant and Jon Congleton

  Confidential Separation Agreement and General Release, dated as of
January 15, 2017, by and between the Registrant and Jon Congleton

Incorporated by Reference

Form
S-8

S-1

File No.
333-205220

Exhibit
4.7

Filing Date
June 25, 2015

333-204127

10.6

May 13, 2015

S-1

333-204127

10.7

May 13, 2015

10-K

001-37449

10.9

February 13, 2017

10-K

001-37449

  10.10  

February 13, 2017

  Employment Agreement, dated as of November 1, 2012, by and between
the Registrant and Janice Troha

  Amendment to Employment Agreement, dated as of December 15, 2014,
by and between the Registrant and Janice Troha

  Amendment to Employment Agreement, dated as of March 6, 2015, by
and between the Registrant and Janice Troha

S-1

S-1

S-1

333-204127

10.8

May 13, 2015

333-204127

10.9

May 13, 2015

333-204127

  10.10  

May 13, 2015

  Amendment to Employment Agreement, dated as of January 12, 2017, by
and between the Registrant and Janice Troha

  Retention Bonus letter agreement, dated as of January 9, 2017, by and
between the Registrant and Janice Troha

  Employment Agreement, dated as of January 21, 2015, by and between
the Registrant and R. Michael Carruthers

  Amendment to Employment Agreement, dated as of January 12, 2017, by
and between the Registrant and R. Michael Carruthers

  Retention Bonus letter agreement, dated as of January 9, 2017, by and
between the Registrant and R. Michael Carruthers

  Employment Agreement, dated as of April 18, 2016, by and between the
Registrant and David M. Rodman, M.D.

  Amendment to Employment Agreement, dated as of January 12, 2017, by
and between the Registrant and David M. Rodman, M.D.

  Confidential Separation Agreement and General Release, dated as of
January 15, 2017, by and between the Registrant and David Rodman,
M.D.

  Notice of Inducement Stock Option Grant and Inducement Stock Option
Agreement, each dated April 18, 2016 by and between the Registrant and
David M. Rodman, M.D.

85

10-K

001-37449

  10.14  

February 13, 2017

10-K

001-37449

  10.15  

February 13, 2017

S-1

333-204127

  10.11  

May 13, 2015

10-K

001-37449

  10.17  

February 13, 2017

10-K

001-37449

  10.18  

February 13, 2017

10-Q

001-37449

10.1

May 3, 2016

10-K

001-37449

  10.20  

February 13, 2017

10-K

001-37449

  10.21  

February 13, 2017

10-Q

001-37449

10.2

May 3, 2016

 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
Exhibit
Number

10.23*

10.24*

10.25*

10.26+

10.27

10.28

10.29#

10.30#

Description

  Notice of Restricted Stock Unit Inducement Grant and Inducement
Restricted Stock Unit Agreement, each dated April 18, 2016 by and
between the Registrant and David M. Rodman, M.D.

  Form of Indemnification Agreement entered into by and between the
Registrant and its directors and officers

  Separation and Release Agreement effective July 19, 2017 between Janice
Troha and Nivalis Therapeutics, Inc.

  Loan and Security Agreement, dated December 16, 2016, by and among
Alpine Immune Sciences, Inc. and Silicon Valley Bank

  Sales Agreement, dated July 5, 2016, by and between the Registrant and
Cowen and Company, LLC

  Non-Employee Director Compensation Guidelines

  License and Research Agreement by and between Alpine Immune
Sciences, Inc. and Kite Pharma, Inc., effective as of October 26, 2015

  License and Research Agreement Amendment No. 1 by and between AIS
Operating Co., Inc. and Kite Pharma, Inc., effective as of October 20,
2017

Incorporated by Reference

Form
10-Q

File No.
001-37449

Exhibit
10.3

Filing Date
May 3, 2016

S-1

8-K

333-204127

  10.18  

May 13, 2015

001-37449

99.2

July 20, 2017

S-3

333-212404

10.1

July 6, 2016

10-Q

8-K

001-37449

001-37449

10.1

10.1

August 4, 2015

October 24, 2017

8-K

001-37449

10.2

October 24, 2017

10.31*

  Change of Control and Severance Policy

8-K

001-37449

10.1

  December 11, 2017

10.32+*

10.33+*

10.34+*

10.35+*

10.36+*

10.37+*

10.38*

10.39*

10.40*

  Employment Agreement, dated as of March 14, 2017, by and between the
Registrant and Mitchell H. Gold, M.D.

  Employment Agreement, dated as of January 1, 2018, by and between the
Registrant and Mitchell H. Gold, M.D.

  Employment Agreement, dated as of April 1, 2017, by and between the
Registrant and Paul Rickey

  Employment Agreement, dated as of January 1, 2018, by and between the
Registrant and Paul Rickey

  Employment Agreement, dated as of August 14, 2016, by and between the
Registrant and Stanford Peng, M.D., Ph.D.

  Employment Agreement, dated as of January 1, 2018 , by and between the
Registrant and Stanford Peng, M.D., Ph.D.

  Alpine Immune Sciences, Inc. (now known as AIS Operating Co., Inc.)
Amended and Restated 2015 Stock Plan, as amended

  Form of Option Agreement under the Alpine Immune Sciences, Inc. (now
known as AIS Operating Co., Inc.) Amended and Restated 2015 Stock
Plan, as amended

  Separation and Release Agreement effective July 19, 2017 between R.
Michael Carruthers and Nivalis Therapeutics, Inc.

21.1+

  List of subsidiaries of the Registrant

86

  S-8 POS  

333-218134

4.1

  September 11, 2017

  S-8 POS  

333-218134

4.2

  September 11, 2017

8-K

001-37449

99.1

July 20, 2017

 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
Exhibit
Number

23.1+

24.1+

31.1+

31.2+

32.1+

32.2+

Description

Form

File No.

Exhibit

Filing Date

Incorporated by Reference

  Consent of Independent Registered Public Accounting Firm

  Powers of Attorney (contained on signature page)

  Certification of Principal Executive Officer Required Under Rules 13a-
14(a) and 15d-14(a) of the Securities Exchange Act of 1934, as amended

  Certification of Principal Financial Officer Required Under Rules 13a-
14(a) and 15d-14(a) of the Securities Exchange Act of 1934, as amended

  Certification of Principal Executive Officer Required Under Rule 13a-
14(b) of the Securities Exchange Act of 1934, as amended, and 18 U.S.C.
Section 1350

  Certification of Principal Financial Officer Required Under Rule 13a-
14(b) of the Securities Exchange Act of 1934, as amended, and 18 U.S.C.
Section 1350

101.INS+

  XBRL Instance Document

101.SCH+

  XBRL Taxonomy Extension Schema Document

101.CAL+

  XBRL Taxonomy Extension Calculation Linkbase Document

101.LAB+

  XBRL Taxonomy Extension Label Linkbase Document

101.PRE+

  XBRL Taxonomy Extension Presentation Linkbase Document

101.DEF+

  XBRL Taxonomy Extension Definition Linkbase Document

*
+
†

#

Indicates a management contract or a compensatory plan, contract or arrangement.
Filed herewith.
All schedules and exhibits to the Merger Agreement have been omitted pursuant to Item 601(b)(2) of Regulation S-K.  A copy of any omitted
schedule and/or exhibit will be furnished to the Securities and Exchange Commission upon request.
Portions of this exhibit have been omitted pursuant to a request for confidential treatment and the omitted portions have been filed separately with the
Securities and Exchange Commission. 

87

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Report to

be signed on its behalf by the undersigned, thereunto duly authorized.

SIGNATURES

Date: March 28, 2018

Date: March 28, 2018

ALPINE IMMUNE SCIENCES, INC.

By:
Name:
Title

/s/  Mitchell Gold
Mitchell Gold
Executive Chairman and Chief Executive Officer

ALPINE IMMUNE SCIENCES, INC.

By:
Name:
Title:

/s/  Paul Rickey
Paul Rickey
Senior Vice President and Chief Financial Officer

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Mitchell Gold and
Paul Rickey, and each of them, with full power of substitution and resubstitution and full power to act without the other, as his or her true and lawful attorney-
in-fact and agent to act in his or her name, place and stead and to execute in the name and on behalf of each person, individually and in each capacity stated
below, and to file, any and all documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and
agents, and each of them, full power and authority to do and perform each and every act and thing, ratifying and confirming all that said attorneys-in-fact and
agents or any of them or their and his or her substitute or substitutes, may lawfully do or cause to be done by virtue thereof.

POWER OF ATTORNEY

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this Report has been signed below by the following persons on

behalf of the Registrant in the capacities and on the dates indicated.

Name

/s/ Mitchell Gold
Mitchell Gold

/s/ Paul Rickey
Paul Rickey

/s/ Peter Thomson
Peter Thompson

/s/ James N. Topper
James N. Topper

/s/ Jay Venkatesan
Jay Venkatesan

/s/ Robert Conway
Robert Conway

/s/ Peter Sekhri
Peter Sekhri

Title

Date

Executive Chairman and Chief Executive Officer (Principal
Executive Officer)

  March 28, 2018

Senior Vice President and Chief Financial Officer (Principal
Accounting and Financial Officer)

  Director

  Director

  Director

  Director

  Director

88

  March 28, 2018

  March 28, 2018

  March 28, 2018

  March 28, 2018

  March 28, 2018

  March 28, 2018

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
   
   
 
 
 
 
 
   
   
 
 
 
 
 
   
   
 
 
 
 
 
   
   
 
 
 
 
 
   
   
 
 
 
 
 
   
   
 
 
 
INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm

Consolidated Balance Sheets

Consolidated Statements of Operations and Comprehensive Income (Loss)

Consolidated Statements of Convertible Preferred Stock and Stockholders’ Equity (Deficit)

Consolidated Statements of Cash Flows

Notes to Consolidated Financial Statements

F-1

F-2

F-3

F-4

F-5

F-6

F-7

 
 
 
 
 
 
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm

To the Stockholders and the Board of Directors of Alpine Immune Sciences, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Alpine Immune Sciences, Inc. as of December 31, 2017 and 2016, the related consolidated
statements of operations and comprehensive income (loss), convertible preferred stock and stockholders' equity (deficit) and cash flows for each of the three
years in the period ended December 31, 2017, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the
consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2017 and 2016, and the results
of its operations and its cash flows for each of the three years in the period ended December 31, 2017 in conformity with U.S. generally accepted accounting
principles.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company’s financial
statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB)
and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of
the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor
were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of
internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial
reporting. Accordingly, we express no such opinion.  

Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and
performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the
financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating
the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

/s/ Ernst & Young LLP

We have served as the Company’s auditor since 2015.

Seattle, Washington
March 28, 2018

F-2

 
 
 
ALPINE IMMUNE SCIENCES, INC.
CONSOLIDATED BALANCE SHEETS
(in thousands, except share and per share amounts)

Assets
Current assets:

Cash and cash equivalents
Short-term investments
Prepaid expenses and other current assets

Total current assets

Restricted cash
Property and equipment, net
Intangible assets

Total assets

Liabilities, convertible preferred stock and stockholders' equity (deficit)
Current liabilities:

Accounts payable
Accrued liabilities
Income taxes payable
Deferred revenue
Deferred rent, current portion
Current portion of long-term debt

Total current liabilities
Deferred rent, long-term portion
Deferred tax liability
Long-term debt
Total liabilities
Commitments and contingencies
Convertible preferred stock, $0.001 par value, 10,000,000 shares authorized and
   zero shares issued and outstanding at December 31, 2017; $0.0001 par value,
   22,081,852 shares authorized and 4,311,770 shares issued and outstanding at
   December 31, 2016; aggregate liquidation preference of zero and $11,583 at
   December 31, 2017 and 2016, respectively
Stockholders' equity (deficit):

Common stock, $0.001 par value, 200,000,000 shares authorized, 13,881,645 shares issued and
13,831,178 shares outstanding at December 31, 2017; $0.0001 par value, 46,500,000 shares
authorized, 608,701 shares issued and outstanding at December 31, 2016
Treasury stock, at cost; 50,467 and zero shares at December 31, 2017 and 2016, respectively
Additional paid-in capital
Accumulated other comprehensive loss
Accumulated deficit

Total stockholders' equity (deficit)

Total liabilities, redeemable convertible preferred stock and stockholders'
   equity (deficit)

  $

  $

  $

December 31,

2017

2016

8,000    $
73,240   
1,308   
82,548   
132   
1,089   
1,453   
85,222    $

193    $
382   
—   
277   
48   
995   
1,895   
66   
305   
4,039   
6,305   

11,819 
— 
36 
11,855 
— 
740 
— 
12,595 

127 
170 
66 
2,008 
33 
— 
2,404 
— 
— 
113 
2,517 

—   

11,535 

14   
—   
88,346   
(59)  
(9,384)  
78,917   

— 
— 
144 
— 
(1,601)
(1,457)

  $

85,222    $

12,595

The accompanying notes are an integral part of these consolidated financial statements.

F-3

 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ALPINE IMMUNE SCIENCES, INC.
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS)
(in thousands except share and per share amounts)

Collaboration revenue
Operating expenses:

Research and development
General and administrative

Total operating expenses
Loss from operations
Other income (expense):
Bargain purchase gain
Interest expense
Interest and other income

Loss before taxes
Income tax benefit (expense)
Basic and diluted net loss attributable to common stockholders

Comprehensive loss:

Unrealized loss on investments

Comprehensive loss

Basic and diluted net loss per share applicable to common stockholders

Weighted-average shares used to compute basic and diluted net
   loss per share attributable to common stockholders

2017

Years Ended December 31,
2016

2015

  $

1,731    $

2,950    $

10,626   
6,079   
16,705   
(14,974)  

6,601   
(152)  
542   
(7,983)  
200   
(7,783)   $

(59)  
(7,842)   $

(1.20)   $

2,989   
1,149   
4,138   
(1,188)  

—   
—   
22   
(1,166)  
(66)  
(1,232)   $

—   
(1,232)   $

(2.18)   $

  $

  $

  $

492 

422 
441 
863 
(371)

— 
— 
2 
(369)
— 
(369)

— 
(369)

(0.74)

6,481,665   

564,816   

496,900

The accompanying notes are an integral part of these consolidated financial statements.

F-4

 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
ALPINE IMMUNE SCIENCES, INC.
CONSOLIDATED STATEMENT OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY (DEFICIT)
(in thousands, except share amounts)

Convertible
Preferred Stock

Shares

  Amount  
— 
— 

—    $
—     

Common Stock

Treasury

Additional
Paid-in  

  Shares  

  Amount  

  Capital

Shares

— 
496,900 

  Amount  
  $

—     
—     

—    $
—     

—    $
—     

Accumulated
Other
Comprehensive 
Loss

  Accumulated 
Deficit

Total
Stockholders’ 
Equity

Balance, January 1, 2015

Issuance common stock
Issuance of convertible
preferred stock
Stock-based compensation and
warrant expense
Net loss

Balance, December 31, 2015

Issuance of convertible
preferred stock, net of
   issuance costs
Exercise of stock options
Stock-based compensation
Net loss

Balance, December 31, 2016
Issuance of Series A-1
convertible preferred stock
Conversion of convertible
preferred stock to
   common stock
Common stock acquired in
business combination
Adjustment of par value from
$0.0001 per share to $0.001 per
share
Conversion of warrant liability
to equity
Exercise of stock options and
common stock
   warrants
Repurchase of common stock    
Stock-based compensation
Unrealized loss on investments    
Net loss

Balance, December 31, 2017

    1,212,436     

—     
—     
    1,212,436     

    3,099,334     
—     
—     
—     
    4,311,770     

    4,989,663     

610 

— 
— 
610 

10,925 
— 
— 
— 
11,535 

37,666 

— 

—     

—     

—     

— 
— 
496,900 

— 
111,801 
— 
— 
608,701 

—     
—     
—     

—     
—     
—     
—     
—     

—     
—     
—     

—     
—     
—     
—     
—     

—     
—     
—     

—     
—     
—     
—     
—     

— 

—     

—     

—     

  $

— 
1 

— 

16 
— 
17 

— 
50 
77 
— 
144 

— 

    (9,301,433)    

(49,201)  

    9,301,433 

1     

—     

—     

49,200 

—     

— 

    3,914,058 

—     

—     

—     

38,103 

— 

— 

13     

—     

—     

(13)    

—     

—     

—     

52 

  $

— 
— 

— 

— 
— 
— 

— 
— 
— 
— 
— 

— 

— 

— 

— 

— 

  $

— 
— 

— 

— 
(369)    
(369)    

— 
— 
— 
(1,232)    
(1,601)    

— 

— 

— 

— 

— 

57,453 
(50,467)    
— 
— 
— 
    13,831,178 

  $

—     
—     
—     
—     
—     
14     

—     
50,467     
—     
—     
—     
50,467    $

—     
—     
—     
—     
—     
—    $

22 
— 
838 
— 
— 
88,346 

  $

— 
— 
— 
(59)    
— 
(59)   $

— 
— 
— 
— 
(7,783)    
(9,384)   $

—     

—     

—     
—     
—     
—     
—     
—    $

— 

— 

— 
— 
— 
— 
— 
— 

— 
1 

— 

16 
(369)
(352)

— 
50 
77 
(1,232)
(1,457)

— 

49,201 

38,103 

— 

52 

22 
— 
838 
(59)
(7,783)
78,917 

The accompanying notes are an integral part of these consolidated financial statements

F-5

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
   
 
   
   
   
   
   
 
   
   
   
   
   
   
 
   
   
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
   
   
 
   
   
   
   
   
   
 
   
   
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
   
   
   
   
   
   
 
   
   
   
   
   
 
   
   
   
   
   
 
   
   
   
   
   
   
 
   
   
   
   
   
 
   
   
   
   
   
 
   
   
   
   
   
 
   
   
   
   
   
 
   
   
   
   
   
 
 
 
ALPINE IMMUNE SCIENCES, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)

Operating activities:
Net loss
Adjustments to reconcile net loss to net cash used in operating
   activities:

Bargain purchase gain
Depreciation expense
Non-cash interest expense
Common stock issued for intellectual property
Stock-based compensation expense
Changes in operating assets and liabilities:

Prepaid expenses
Accounts payable
Deferred revenue
Accrued liabilities
Deferred income tax
Deferred rent and other

Net cash (used in) provided by operating activities

Investing activities:

Purchase of property and equipment
Purchase of short-term investments
Proceeds from sale short-term investments
Cash and cash equivalents acquired in connection with merger

Net cash used in investing activities

Financing activities:

Proceeds from sale of preferred stock
Proceeds from borrowings
Proceeds from exercise of stock options and common stock
   warrants

Net cash provided by financing activities

Net (decrease) increase in cash and cash equivalents and restricted cash
Cash and cash equivalents and restricted cash at beginning of period
Cash and cash equivalents and restricted cash at end of period

Supplemental Information

Convertible preferred stock exchanged for common stock
Discount in connection with issuance of debt
Cash paid for income taxes
Cash paid for interest
Reclass of preferred stock warrant liability to equity

2017

Years Ended December 31,
2016

2015

  $

(7,783)   $

(1,232)   $

(369)

(6,601)  
241   
87   
—   
838   

(1,193)  
66   
(1,731)  
(259)  
(204)  
(33)  
(16,572)  

(586)  
(88,307)  
27,960   
31,130   
(29,803)  

37,666   
5,000   

22   
42,688   
(3,687)  
11,819   
8,132    $

49,201    $
428    $
76    $
53    $
52    $

—   
69   
—   
—   
77   

(26)  
80   
(2,950)  
39   
—   
146   
(3,797)  

(782)  
—   
—   
—   
(782)  

10,925   
—   

50   
10,975   
6,396   
5,423   
11,819    $

—    $
—    $
—    $
—    $
—    $

— 
1 
— 
1 
16 

(10)
47 
4,958 
176 
— 
— 
4,820 

(7)
— 
— 
— 
(7)

610 
— 

— 
610 
5,423 
— 
5,423 

— 
— 
— 
— 
—

  $

  $
  $
  $
  $
  $

The accompanying notes are an integral part of these consolidated financial statements.

F-6

 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
ALPINE IMMUNE SCIENCES INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. Description of Business

Alpine Immune Sciences, Inc. (the “Company”, “Alpine”, “we”, “us”, or “our”) is focused on discovering and developing modern, protein-based

immunotherapies targeting the immune synapse to treat cancer, inflammation, and other diseases. Our proprietary scientific platform uses a process known as
directed evolution, or an iterative scientific engineering process purposefully conducted to “evolve” a protein to create therapeutics potentially capable of
modulating immune system interactions. In our pre-clinical animal studies, our platform has proven capable of identifying novel molecules, including single
domains capable of modulating multiple targets. We were incorporated under the laws of the State of Delaware and are headquartered in Seattle, Washington.

Significant estimates inherent in the preparation of the accompanying consolidated financial statements include recoverability and useful lives of

intangible assets and the fair value of equity based awards.

Reverse Merger and Subscription Agreement

On April 18, 2017, we entered into a merger agreement with Nivalis Therapeutics, Inc. (“Nivalis”), a public biotechnology company, and one of its

wholly-owned subsidiaries pursuant to which, the subsidiary merged with and into Alpine, with Alpine continuing as a wholly owned subsidiary of Nivalis and
the surviving corporation of the merger (the “Merger Agreement”). Nivalis Therapeutics, Inc. was incorporated in Delaware in March 2007.  Alpine Immune
Sciences, Inc. (prior to its business combination with Nivalis Therapeutics, Inc.) was incorporated in Delaware on December 30, 2014.

The merger is intended to qualify for federal income tax purposes as a tax-free reorganization under the provisions of Section 368(a) of the Internal
Revenue Code of 1986, as amended. At the closing of the merger, each outstanding share of our capital stock (common stock and preferred stock) was converted
into the right to receive shares of Nivalis common stock (subject to the payment of cash in lieu of fractional shares and after giving effect to a 1:4 reverse stock
split of Nivalis common stock) such that, immediately following the effective time of the merger, preexisting Nivalis stockholders, optionholders, and
warrantholders owned, or held rights to acquire, approximately 26% of the fully-diluted common stock of Nivalis, which changed its name to “Alpine Immune
Sciences, Inc.” following the completion of the merger and Alpine’s preexisting stockholders, optionholders, and warrantholders owned, or held rights to acquire
approximately 74% of the fully-diluted common stock of Nivalis. The issuance of the shares to our pre-existing stockholders was registered under the Securities
Act of 1933, as amended, pursuant to a registration statement on Form S-4 (No. 333-218134) (the “Registration Statement”) declared effective by the Securities
and Exchange Commission (the “SEC”) on June 6, 2017.

Contemporaneously with the execution and delivery of the Merger Agreement, certain of our pre-existing stockholders entered into a subscription

agreement with us pursuant to which such stockholders purchased, immediately prior to the closing of the merger, 1,335,118 shares of our capital stock at a
purchase price of $12.74 per share for an aggregate purchase price of approximately $17.0 million.

The merger and the subscription described above were consummated on July 24, 2017.

2. Summary of Significant Accounting Policies

Basis of Presentation and Use of Estimates

The accompanying consolidated financial statements have been prepared in accordance with the rules and regulations of the SEC and generally
accepted accounting principles in the United States of America (“GAAP”). The preparation of financial statements in conformity with GAAP requires
management to make judgments, estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying
notes. We base our estimates and assumptions on historical experience when available and on various factors we believe to be reasonable under the
circumstances. Actual results could differ materially from those estimates.

F-7

 
 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

Principles of Consolidation

Our consolidated financial statements include the financial position and results of operations of Alpine and AIS Operating Co., Inc., our wholly

owned subsidiary and operating company. On July 24, 2017, we closed the merger on the terms described in more detail in Note 1. In connection with the
merger, Nivalis effected a 1:4 reverse stock split of its common stock. Upon the closing of the merger, (1) a wholly-owned subsidiary of Nivalis merged with
and into Alpine, with Alpine (renamed as “AIS Operating Co., Inc.”) remaining as the surviving entity; and (2) Nivalis was renamed as “Alpine Immune
Sciences, Inc.”

Segments

We operate in one segment and use cash flow as the primary measure to manage our business and do not segment the business for internal reporting or

decision-making purposes.

Business Combination

We use our best estimates and assumptions to accurately assign fair value to the tangible and intangible assets acquired and liabilities assumed at the

acquisition date. Our estimates are inherently uncertain and subject to refinement. During the measurement period, which may be up to one year from
the acquisition date, we may record adjustments to the fair value of these tangible and intangible assets acquired and liabilities assumed, with the
corresponding offset to bargain purchase gain. In addition, uncertain tax positions and tax-related valuation allowances are initially established in connection
with a business combination as of the acquisition date. Our management collects new information and reevaluates these estimates and assumptions quarterly
and records any adjustments to our preliminary estimates to bargain purchase gain during the measurement period. Upon the conclusion of the measurement
period or final determination of the fair value of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to our
consolidated statements of operations and comprehensive income (loss).

We allocated the preliminary purchase price to the acquired tangible and intangible assets and assumed liabilities of Nivalis based on their estimated

fair values as of the acquisition date. The fair value of our identifiable intangible asset is based on detailed valuations using information and assumptions
provided by management. The allocation of the purchase consideration to the assets acquired and liabilities assumed in our financial statements was finalized
as of December 31, 2017.  

Cash and cash equivalents

We consider all highly liquid investments with an original maturity of 90 days or less at the time of purchase to be cash equivalents. Cash and cash

equivalents consist of deposits with commercial banks in checking and interest-bearing accounts, and highly liquid money market funds.

Concentrations of Credit Risk

Cash and cash equivalents, receivables, accounts payable and accrued liabilities, which are recorded at invoiced amount or cost, approximate fair
value based on the short-term nature of these financial instruments. The fair value of short-term investments is based on quoted market prices. Financial
instruments that potentially subject us to concentrations of credit risk consist primarily of cash and cash equivalents and short-term investments. Periodically,
we maintain deposits in financial institutions in excess of government insured limits. We believe we are not exposed to significant credit risk as our deposits
are held at financial institutions we believe to be of high credit quality securities such as money market funds, U.S. Treasury securities, and commercial paper.
To date, we have not realized any losses on these deposits.

Short-Term Investments

Our short-term investments include funds invested in highly liquid money market funds, U.S. Treasury securities, commercial paper, and corporate

debt securities with a final maturity of each security of less than one year. All investments are classified as available-for-sale securities and are recorded at fair
value based on quoted prices in active markets, with unrealized gains and losses excluded from earnings and reported in other comprehensive income (loss).
Purchase premiums and discounts are recognized as interest income using the interest method over the terms of the securities. Realized gains and

F-8

 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

losses and declines in fair value deemed to be other than temporary are reflected in the consolidated statements of operations and comprehensive income
(loss) using the specific-identification method.

Property and Equipment

Property and equipment are stated at cost, net of accumulated depreciation. Depreciation is recorded using the straight-line method the estimated
useful lives of the assets, generally three to five years, while leasehold improvements are amortized over the shorter of their estimated useful lives or the
related lease term. Upon retirement or sale, the cost of assets disposed of and the related accumulated depreciation are removed from the accounts and any
resulting gain or loss is credited or charged to operations. Maintenance and repairs are expensed as incurred. Major improvements are capitalized as additions
to property and equipment.

Intangible Asset

Our intangible asset is our indefinite-life GSNOR inhibitor in-process research and development asset (“IPR&D”) acquired from Nivalis. The IPR&D

represents the processes, expertise, and technology employed in the development of S-nitrosoglutathione reductase (“GSNOR”) inhibitors and Nivalis’ lead
product candidate, cavosonstat. The IPR&D represents the estimated fair value as of the acquisition date of substantive in-process projects that have not
reached technological feasibility. The primary basis for determining technological feasibility of these projects is obtaining regulatory approval. The valuation
of IPR&D is determined using a discounted cash flow method. In determining the value of IPR&D, management considers, among other factors, the stage of
completion of the projects, the technological feasibility of the projects, whether the projects have an alternative future use, and the estimated residual cash
flows that could be generated from the various projects and technologies over their respective projected economic lives. The discount rate used is determined
at the time of acquisition and includes a rate of return which accounts for the time value of money, as well as risk factors reflecting the economic risk that the
projected cash flows may not be realized.

We review our IPR&D at least annually for possible impairment. IPR&D is reviewed for possible impairment between annual tests if an event occurs

or circumstances change that would more likely than not reduce the fair value of the IPR&D below their carrying values. We test our IPR&D each year on
October 1. Our IPR&D asset totaled $1.5 million at December 31, 2017.

Impairment of Long-lived Assets

We evaluate our long-lived tangible assets for impairment whenever events or changes in circumstances indicate that the carrying amount of such

assets may not be recoverable. If the carrying value exceeds the undiscounted future cash flows estimated to result from the use and eventual disposition of
the asset, we write down the asset to its estimated fair value. Impairment is assessed by comparing the undiscounted cash flows expected to be generated by
the asset to its carrying value. We did not record any impairments in the years ended December 31, 2017, 2016 and 2015.

Accrued Liabilities

As part of the process of preparing our consolidated financial statements, we are required to estimate accruals for professional services and research

and development expenses. This process involves reviewing contracts and vendor agreements, and communicating with applicable personnel to identify
services that have been performed on our behalf. We estimate the level of service performed and the associated cost incurred for the service when we have not
yet been invoiced or otherwise notified of the actual cost. We estimate accrued liabilities as of each balance sheet date based on known facts and
circumstances.

Although we do not expect our estimates to be materially different from amounts actually incurred, if our estimates of the status and timing of services
performed differ from the actual status and timing of services performed, we may report amounts that are too high or too low in any particular period. To date,
we have not experienced any significant adjustments to our estimates.

F-9

 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

Leases and Deferred Rent

We have entered into lease agreements for office and laboratory space. These leases are classified as operating leases. Rent payments, rent-free

periods and rent increases are recognized as rent expense on a straight-line basis over the lease term. The difference between rent expense recognized and
rental payments is recorded as deferred rent in the accompanying consolidated balance sheets.

Common Stock Warrants

We granted common stock warrants to certain non-employee professional advisers. We account for our warrants at fair value, with changes in fair
value recognized in operating expenses. Common stock warrants are initially recorded at their issuance date fair value and are subsequently remeasured at
each balance sheet date. These warrants are valued using the Black-Scholes option pricing model based on the estimated market value of the underlying
common stock at the valuation measurement dates, the remaining contractual term of the warrant, risk-free interest rates, expected dividends, and expected
volatility of the price of the underlying common stock.

Derivative Financial Instruments

We evaluate all of our financial instruments, including issued stock purchase warrants, to determine if such instruments are derivatives or
contain features qualifying as embedded derivatives. For derivative financial instruments accounted for as liabilities, the derivative instrument is initially
recorded at its fair value and is then re-valued at each reporting date, with changes in the fair value reported in the consolidated statement of operations and
comprehensive income (loss). We use the Black-Scholes option-pricing model to value the derivative instruments at inception and subsequent valuation dates.
The classification of derivative instruments, including whether such instruments should be recorded as liabilities or as equity, is re-assessed at the end of each
reporting period. We do not use derivative instruments to hedge exposures to cash flow, market, or foreign currency risks.

Revenue Recognition

We derive our revenue from collaboration and licensing agreements. We recognize revenue when each of the following four criteria are met:

(1) persuasive evidence of an arrangement exists; (2) products have been delivered or services have been rendered; (3) the sales price is fixed or determinable;
and (4) collectability is reasonably assured.

We recognize revenue under our License and Research Agreement (the “Collaboration Agreement”) with Kite Pharma, Inc. (“Kite”) in accordance
with the guidance on multiple element arrangements. Multiple elements or deliverables may include (1) grants of, or options to obtain, intellectual property
licenses; (2) research and development services; and/or (3) manufacturing or supply services. Payments typically received under these arrangements include
one or more of the following: non-refundable upfront license fees, option exercise fees, payment for research and/or development efforts, amounts due upon
the achievement of specified objectives, and/or royalties on future product sales.

The evaluation of multiple-element arrangements requires management to make judgments about (1) the identification of deliverables; (2) whether

such deliverables are separable from other aspects of the contractual relationship; (3) the estimated selling price of each deliverable; and (4) the expected
period of performance for each deliverable. To determine the units of accounting under a multiple-element arrangement, management evaluates certain
separation criteria, including whether the deliverables have stand-alone value, based on the relevant facts and circumstances for each arrangement.
Management then estimates the selling price for each unit of accounting and allocates the arrangement consideration to each unit using the relative selling
price method. The allocated consideration for each unit of accounting is recognized based on the method most appropriate for that unit of account and in
accordance with the revenue recognition criteria detailed above. If there are deliverables in an arrangement that are not separable from other aspects of the
contractual relationship, they are treated as a combined unit of accounting, with the allocated revenue for the combined unit recognized in a manner consistent
with the revenue recognition criteria applicable to the final deliverable in the combined unit. Payments received prior to satisfying the relevant revenue
recognition criteria are recorded as deferred revenue in the accompanying consolidated balance sheets and recognized as revenue when the related revenue
recognition criteria are met.

The Collaboration Agreement provides for non-refundable milestone payments. We recognize revenue that is contingent upon the achievement of a

substantive milestone in its entirety in the period in which the milestone is achieved. A

F-10

 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

milestone is considered substantive when the consideration payable to us for such milestone (1) is consistent with our performance necessary to achieve the
milestone or the increase in value to the collaboration resulting from our performance; (2) relates solely to our past performance; and (3) is reasonable relative
to all of the other deliverables and payments within the arrangement. In making this assessment, we consider all facts and circumstances relevant to the
arrangement, including factors such as the scientific, regulatory, commercial, and other risks that must be overcome to achieve the milestone, the level of
effort and investment required to achieve the milestone and whether any portion of the milestone consideration is related to future performance or
deliverables.

We will periodically review the estimated performance periods under the Collaboration Agreement which provides for non-refundable upfront

payments and fees. We will adjust the periods over which revenue should be recognized when appropriate to reflect changes in assumptions relating to the
estimated performance periods. We could accelerate revenue recognition in the event of early termination of programs or if our expectations change.
Alternatively, we could decelerate revenue recognition if programs are extended or delayed. While such changes to our estimates have no impact on our
reported cash flows, the timing of revenue recorded in future periods could be materially impacted.

Research and Development

Research and development costs are expensed as incurred. Research and development costs include payroll and personnel expense, consulting costs,
external contract research and development expenses, raw materials, drug product manufacturing costs and allocated overhead – including depreciation, rent
and utilities. Research and development costs that are paid in advance of performance are capitalized as a prepaid expense and amortized over the service
period as the services are provided.

Stock-based Compensation

We account for all stock-based compensation granted to employees and non-employees using a fair value method. Stock-based compensation awarded

to employees and non-employees is measured at the grant date fair value for stock option grants. We use the Black-Scholes option pricing model to estimate
the fair value of stock options at the grant date. Stock-based compensation to employees is recognized over the requisite service period of the awards, usually
the vesting period, on a straight-line basis. Stock-based compensation awarded to non-employees is revalued over its vesting period using a Black-Sholes
option pricing model. For performance-based awards where the vesting of the options may be accelerated upon the achievement of certain milestones, vesting
and the related stock-based compensation is recognized as an expense when it is probable the milestone will be met. We recognize forfeiture of awards as they
occur rather than estimating the expected forfeiture rate.

When awards are modified, we compare the fair value of the affected award measured immediately prior to modification to its value after

modification. To the extent that the fair value of the modified award exceeds the original award, the incremental fair value of the modified award is
recognized as compensation on the date of modification for vested awards, and over the remaining vesting period for unvested awards.

Income Taxes

Income taxes are accounted for using an asset and liability approach that requires the recognition of deferred tax assets and liabilities for the expected
future tax consequences of temporary differences between the consolidated financial statement and tax bases of assets and liabilities at the applicable enacted
tax rates. We will establish a valuation allowance for deferred tax assets if it is more likely than not that these items will expire before we are able to realize
their benefits or that future deductibility is uncertain.

We recognize the tax benefit from uncertain tax positions only if it is more likely than not that the tax position will be sustained on examination by the

tax authorities, based on the technical merits of the position. The tax position is measured based on the largest benefit that has a greater than 50% likelihood
of being realized upon ultimate settlement. We recognize interest and penalties related to income tax matters in income tax expense if incurred.

F-11

 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

Comprehensive Income (Loss)

Comprehensive income (loss) is comprised of net income (loss) and certain changes in equity excluded from net income (loss). For the year ended

December 31, 2017, other comprehensive loss consists of unrealized losses on our short-term investments. There was no difference between comprehensive
income (loss) and net income (loss) for the years ended December 31, 2016 and 2015.

Recently Issued Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from
Contracts with Customers, as amended, which amends the guidance for revenue recognition to replace numerous industry specific requirements. ASU 2014-
09, as amended, implements a five-step process for customer contract revenue recognition focusing on transfer of control, as opposed to transfer of risk and
rewards. ASU 2014-09, as amended, also requires enhanced disclosures regarding the nature, amount, timing, and uncertainty of revenues and cash flows
from contracts with customers. Other major provisions include ensuring the time value of money is considered in the transaction price, and allowing estimates
of variable consideration to be recognized before contingencies are resolved in certain circumstances. ASU 2014-09, as amended, is effective for reporting
periods beginning after December 15, 2017. Early adoption is permitted, but not before December 15, 2016. Entities can transition to the standard either
retrospectively or as a cumulative-effect adjustment as of the date of adoption. We adopted this new standard effective January 1, 2018, on a modified
retrospective basis, which requires the cumulative effect of the adoption to be recognized as an adjustment to opening retained earnings in the first period of
adoption. The adoption of ASU No. 2014-09 did not have a material impact on recorded amounts when applied to the opening balance sheet as of January 1,
2018, and is not expected to have a material impact on the amount or timing of the future amounts of net income. Additional impacts could still result when
the standard is first applied to revenue transactions during the first quarter of 2018.

In February 2016, the FASB issued ASU No. 2016-02, Leases. ASU 2016-02 requires a lessee to separate the lease components from the non-lease
components in a contract and recognize in the statement of financial position a liability to make lease payments (the lease liability) and a right-of-use asset
representing its right to use the underlying asset for the lease term. It also aligns lease accounting for lessors with the revenue recognition guidance in ASU
2014-09. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, and is to be
applied at the beginning of the earliest period presented using a modified retrospective approach. We are continuing to evaluate the effect the standard will
have on our financial statements and related disclosures.

In August 2016, the FASB issued ASU No. 2016-15 which provides new guidance on the classification of certain cash receipts and payments in the

statement of cash flows. The new guidance is intended to reduce diversity in practice in how certain transactions are classified in the statement of cash flows.
We will be required to adopt the new guidance beginning with the first fiscal quarter of 2018; early adoption is permitted. We are currently assessing the
impact the new guidance will have on our consolidated statements of cash flows.

In May 2017, the FASB issued ASU No. 2017-09 to provide clarity and reduce both diversity in practice and cost and complexity when applying the
guidance in Compensation - Stock Compensation (Topic 718) about a change to the terms and conditions of a share-based payment award. The amendments
in this update provide guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification
accounting in Topic 718. The amendments in this update are effective for annual periods, including interim periods within those annual periods, beginning
after December 15, 2017. Early adoption is permitted, and applied prospectively to modifications occurring on or after the adoption date. We do not expect
the adoption of this standard to have a material impact on our financial statements.  For the year ended December 31, 2017, there were no modifications to the
terms or conditions of a share-based payment award.

Recently Adopted Accounting Pronouncements

In August 2014, the FASB issued ASU No.2014-15, Disclosures of Uncertainties about an Entity’s Ability to Continue as a Going Concern. Under the

new guidance, management is required to assess an entity’s ability to continue as a going concern and to provide related footnote disclosures in certain
circumstances. The provisions of this standard are effective for annual periods ending after December 31, 2016, and for annual and interim periods thereafter.
We adopted this guidance this year and management believes our existing cash and cash equivalents as of December 31, 2017 are sufficient to fund our
operations and do not raise substantial doubt about our ability to continue as a going concern.

F-12

 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

In March 2016, the FASB issued ASU No. 2016-09- Improvements to Employee Share-Based Payment Accounting, which simplified the accounting

for share-based payment transactions, including the income tax consequences, the calculation of diluted earnings per share, the treatment of forfeitures, the
classification of awards as either equity or liabilities, and the classification on the statement of cash flows. For public business entities, the amendments in this
update are effective for annual periods beginning after December 15, 2016 and interim periods within those annual periods. Early adoption is permitted for
any entity in any interim or annual period. We adopted ASU 2016-09 with effect from January 1, 2015. The adoption of this standard did not have an impact
on our financial statements.

In November 2016, the FASB issued ASU No. 2016-18 relating to restricted cash. The new guidance requires amounts generally described as
restricted cash and restricted cash equivalents to be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total
amounts shown on the consolidated statement of cash flows. This guidance is required to be adopted beginning with the first fiscal quarter of 2018; early
adoption is permitted. We adopted this guidance effective June 30, 2017, which required us to include restricted cash within the beginning and ending balance
of cash and cash equivalents for the year ended December 31, 2017. We had no restricted cash prior to adopting this guidance, thus we were not required to
revise prior period statements of cash flows. The adoption of this guidance does not impact our financial position or results of operations.

3. Business Combination

On July 24, 2017, we closed the merger on the terms described in more detail in Note 1. In connection with the merger, Nivalis effected a 1:4 reverse

stock split of its common stock. Upon the closing of the merger, (1) a wholly-owned subsidiary of Nivalis merged with and into Alpine, with Alpine (renamed
as “AIS Operating Co., Inc.”) remaining as the surviving entity; and (2) Nivalis was renamed as “Alpine Immune Sciences, Inc.”

Under the terms of the Merger Agreement, Nivalis issued shares of its common stock to Alpine’s stockholders, at an exchange rate of 0.4969 shares of

Nivalis common stock, after taking into account the 1:4 reverse stock split, for each share of Alpine’s common stock and preferred stock outstanding
immediately prior to the merger. The exchange rate was determined through arms’-length negotiations between Nivalis and Alpine. Nivalis also assumed all
of the stock options outstanding under Alpine’s Amended and Restated 2015 Stock Plan, as amended (the “Alpine Plan”), and stock warrants for Alpine’s
capital stock outstanding immediately prior to the merger, with such stock options and warrants henceforth representing the right to purchase a number of
shares of the Nivalis common stock equal to 0.4969 multiplied by the number of shares of Alpine’s common stock or preferred stock previously represented
by such options and warrants. Nivalis also assumed the Alpine Plan. Immediately after the merger, there were 13,881,645 shares of common stock
outstanding. Immediately after the merger, Alpine’s former stockholders, warrantholders, and optionholders owned, or held rights to acquire, approximately
74% of the fully-diluted common stock of Nivalis, which for these purposes is defined as the outstanding common stock of Nivalis, plus “in the money”
options and warrants to purchase shares of Nivalis’ common stock, assuming all “in the money” options and warrants of Nivalis outstanding immediately
prior to the merger are exercised on a cashless basis immediately prior to the closing of the merger, with Nivalis’ stockholders, optionholders, and
warrantholders immediately prior to the merger owning, or holding rights to acquire, approximately 26% of the fully diluted common stock of Nivalis. More
than 74% of Nivalis’ common stock outstanding immediately after the merger was held by stockholders party to lock-up agreements, pursuant to which such
stockholders have agreed, except in limited circumstances, not to sell, transfer, or engage in swap or similar transactions with respect to shares of Nivalis’
common stock, including, as applicable, shares received in the merger and issuable upon exercise of certain warrants and options, for a period of 180 days
following the completion of the merger.

The issuance of shares of Nivalis’ common stock to our pre-existing stockholders was registered with the SEC pursuant to the Registration Statement.

Immediately prior to the merger, we issued and sold an aggregate of approximately $17.0 million of shares of our capital stock to certain existing
stockholders. For accounting purposes, our historical financial statements were not adjusted to reflect the merger, other than adjustments to the capital
structure to reflect the historical capital structure of Nivalis. No other adjustments to our historical assets and liabilities were made as a result of the merger.

In addition to the operating assets and liabilities of Nivalis, we also acquired Nivalis’ tax attributes, which primarily consisted of net operating losses

which begin to expire in 2032. Our ability to utilization the tax attributes of Nivalis may be limited under Section 382 of the U.S. Internal Revenue Service
and as such, have been reserved. We recorded a deferred tax liability related to future tax benefits arising from IPR&D acquired in the Merger. The combined
organization is focusing on the development and commercialization of our innovative immunotherapies. Following the merger, the increased cash

F-13

 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

resources and increased access to capital of the combined organization will help to support the clinical development of our products.

Consideration Transferred

The fair value of the consideration transferred was based on the most reliable measure, which was determined to be the market price of Nivalis shares
of common stock as of the acquisition date. The fair value of the consideration transferred consisted of the following (in thousands except share and per share
amounts):

Outstanding Nivalis common stock

Per share fair value of Nivalis common stock

Outstanding Nivalis stock options

Weighted average per share fair value of Nivalis stock options

Total fair value of consideration

$

$
$

3,914,058 
9.60 
421,992 
1.25 
38,103

Pursuant to the Merger Agreement, unvested Nivalis stock options immediately vested as of the closing of the business combination and were

adjusted to give effect to the recapitalization.

Purchase Price Allocation

As Alpine was the accounting acquirer in the merger, we allocated the purchase price to the acquired tangible and intangible assets and assumed
liabilities of Nivalis based on their estimated fair values as of the acquisition date. The excess of the estimated fair values of net assets acquired over the
acquisition consideration paid was recorded as a bargain purchase gain in the consolidated statements of operations and comprehensive income (loss). The
determination of the fair values of the assets acquired and liabilities assumed requires significant judgment, including third party valuation estimates relating
to the value of the acquired IPR&D. The allocation of the purchase consideration to the assets acquired and liabilities assumed in our financial statements was
finalized as of December 31, 2017.  

Since the acquisition date, we have recorded adjustments to the allocation of the purchase consideration that included increases of $77,000 and
$15,000 to other receivables and accrued liabilities, respectively, which resulted in a decrease of $62,000 in our bargain purchase gain. These purchase price
adjustments are reflected in the accompanying consolidated balance sheet as of December 31, 2017. The final allocation of the purchase consideration is as
follows (in thousands):

Assets:
Cash and cash equivalents
Marketable securities
Other receivables
IPR&D

Total assets acquired

Liabilities:
Accrued liabilities
Deferred tax liability

Total liabilities assumed

Bargain purchase gain
Total

$

$

31,130 
12,952 
79 
1,453 
45,614 

(401)
(509)
(910)
(6,601)
38,103

We relied on significant Level 3 unobservable inputs to estimate the fair value of our acquired IPR&D using management’s estimate of future

royalties and expected earnings of the assets after taking into account an estimate of future expenses necessary to bring the products to completion. These
projected cash flows were then discounted to their present values using a discount rate of 17%, which was considered commensurate with the risks and stages
of development of the IPR&D.

F-14

 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

The bargain purchase gain resulted from expenses incurred by Nivalis between the time the purchase price was negotiated and the close of the

transaction, and changes in the Nivalis stock price during that period as the exchange ratio was fixed when the purchase price was negotiated.

We recognized acquisition-related costs of $1.5 million for the year ended December 31, 2017. These costs are included within general and

administrative expense in our consolidated statements operations and of comprehensive income (loss).

Pro Forma Financial Information

The following pro forma consolidated results of net loss for the years ended December 31, 2017 and 2016 assume the business combination was

completed as of January 1, 2016 (in thousands, except per share amounts):

Pro forma revenues
Pro forma net loss
Pro forma basic and diluted net loss per share

Years Ended December 31,

2017

2016

  $

  $

1,731    $

(18,327)  

(1.32)   $

2,950 
(32,695)
(2.37)

For purposes of the pro forma disclosures above, the primary adjustments for the years ended December 31, 2017 include the elimination of

acquisition related costs and acceleration of stock compensation expense upon the change in control.

4. Net Loss Per Share

We compute net loss per share attributable to common stockholders using the two-class method required for participating securities. We consider our
convertible preferred stock to be participating securities. In accordance with the two-class method, earnings allocated to these participating securities, which
include participation rights in undistributed earnings, are subtracted from net income to determine total undistributed earnings to be allocated to common
stockholders. Net loss is not allocated to participating securities as there is no contractual obligation to share in net losses.

Basic net loss per share attributable to common stockholders is computed by dividing net loss attributable to common stockholders by the weighted-

average number of common shares outstanding during the period. All participating securities are excluded from basic weighted-average common shares
outstanding. Because of net losses recognized in each period, potential common shares issuable upon the exercise of outstanding stock options and warrants
and the conversion of preferred shares into common shares have not been reflected in the calculation of diluted net loss per share due to the anti-dilutive
effect. Diluted net loss per share, therefore, does not differ from basic net loss per share.

The basic and diluted net loss per share for the years ended December 31, 2017, 2016, and 2015 were computed based on the shares of common stock

outstanding during the respective periods.  The net loss per share for the year ended December 31, 2017 includes the conversion 9,301,433 shares of our
convertible preferred stock into common stock, and 3,914,058 shares acquired in connection with the merger.  The significant number of shares issued has
affected the year-over-year comparability of our net loss per share calculations.

The common stock issuable upon the conversion or exercise of the following dilutive securities has been excluded from the diluted net loss per share

attributable to common stockholders calculation because their effect would have been antidilutive for the periods presented:

Convertible preferred stock
Warrants to purchase common stock
Options to purchase common stock
Total

2017

— 
24,123 
1,611,996 
1,636,119 

December 31,
2016

4,311,770 
12,422 
520,739 
4,844,931 

2015

1,212,436 
12,422 
401,688 
1,626,546

F-15

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
  
  
 
 
  
  
 
 
  
  
 
 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

5. Cash Equivalents and Short-Term Investments

The amortized cost and fair value of our cash equivalents and short-term investments are as follows (in thousands):

Assets:

Money market funds
U.S. treasury bills
Corporate debt securities and commercial paper
Total

Amortized
Cost

  $

  $

5,680    $
19,909   
53,390   
78,979    $

December 31, 2017

Gross
unrealized
gains

Gross
unrealized
losses

—    $
—   
—   
—    $

Fair market
value

—    $
(21)  
(38)  
(59)   $

5,680 
19,888 
53,352 
78,920

All short-term investments held as of December 31, 2017 were classified as available-for-sale securities and had contractual maturities of less than

one year. There were no realized gains and losses on these securities for the periods presented. There were no short-term investments as of December 31,
2016.

6. Fair Value Measurements

Fair value is defined as the exchange price received for an asset or paid to transfer a liability, or an exit price, in the principal or most advantageous

market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair
value must maximize the use of observable inputs and minimize the use of unobservable inputs. The three-tier fair value hierarchy, which prioritizes the
inputs used in measuring fair value, is as follows:

Level 1: Quoted prices in active markets for identical assets or liabilities.

Level 2: Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in inactive markets, or other

inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3: Unobservable inputs supported by little or no market activity and significant to the fair value of the assets or liabilities.

At December 31, 2016, we had cash of $11.8 million and no assets measured using Level 1, Level 2, or Level 3 inputs. As of December 31, 2017,

cash of $2.3 million is excluded from the fair value table below.

The following table summarizes our financial assets and liabilities measured at fair value on a recurring basis (in thousands):

Assets:

Money market funds
U.S. treasury bills
Corporate debt securities and commercial paper
Total

Level 1

Level 2

Level 3

Total

December 31, 2017

  $

  $

5,680    $
19,888   
—   
25,568    $

—    $
—   
53,352   
53,352    $

—    $
—   
—   
—    $

5,680 
19,888 
53,352 
78,920

Our Level 2 assets consist of commercial paper and corporate debt securities. We review trading activity and pricing for our available-for-sale

securities as of the measurement date. When sufficient quoted pricing for identical securities is not available, we use market pricing and other observable
market inputs for similar securities obtained from various third-party data providers. These inputs either represent quoted prices for similar assets in active
markets or have been derived from observable market data.

On June 30, 2017, we issued Series A-1 preferred stock warrants in connection with long-term debt. The warrant liability was classified as a Level 3
liability and the fair value was determined using the Black-Scholes option-pricing model with the following key assumptions: (1) stock price of $9.64; (2) a
risk-free rate of 2.31%; (3) an expected volatility of 78%; and (4) a term of 9.5 years. Both observable and unobservable inputs are used to determine the fair
value of the warrant liability. As a result, the unrealized gains and losses of the warrant liability may include changes in fair value attributable to

F-16

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

both observable inputs (e.g., changes in market interest rates) and unobservable inputs (e.g., probabilities of the occurrence of an early termination event).

In July 2017, in connection with the closing of the merger, our preferred stock warrants converted to common stock warrants. As a result of the
change in the underlying shares, the warrants were equity-classified beginning on July 24, 2017. As of the date of conversion, we remeasured the fair value of
the warrants, which resulted in a $1,000 decrease in fair value, which was recorded as other income in our accompanying consolidated statements of
operations and comprehensive income (loss). See Note 10 for additional discussion of the warrants.

The following table shows the reconciliation of the Level 3 warrant liability measured and recorded at fair value on a recurring basis, using significant

unobservable inputs (in thousands):

Balance as of January 1, 2017
Fair value of warrants at issuance (June 30, 2017)
Change in fair value of warrant liability in connection with merger
Conversion of warrant liability to equity
Balance as of December 31, 2017

7. Prepaid expenses and other current assets

Prepaid expenses and other current assets consists of the following (in thousands):

Prepaid research and development
Prepaid insurance
Prepaid other
Other receivables
Prepaid expenses and other current assets

8. Property and Equipment

Property and equipment consist of the following (in thousands):

Laboratory equipment
General equipment and furniture
Computer equipment and software
Leasehold improvements
Property and equipment, at cost
Less accumulated depreciation and amortization
Property and equipment, net

Estimated
Fair Value

— 
53,000 
(1,000)
(52,000)
—

$

$

December 31,

2017

2016

791    $
298   
91   
128   
1,308    $

December 31,

2017

2016

1,161    $
110   
82   
47   
1,400   
(311)  
1,089    $

— 
8 
28 
— 
36

660 
74 
70 
6 
810 
(70)
740

  $

  $

  $

  $

Depreciation expense was $241,000, $69,000 and 1,000 for the years ended December 31, 2017, 2016 and 2015, respectively.

F-17

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

9. Accrued Liabilities

Accrued liabilities and other current liabilities consisted of the following (in thousands):

Accrued research and development
Accrued professional fees
Deferred compensation
Accrued taxes and licenses
Accrued other
Total

10. Long-term Debt

December 31,

2017

2016

  $

  $

197    $
112   
—   
30   
43   
382    $

— 
5 
61 
61 
43 
170

On June 30, 2017, we drew down a term loan of $5.0 million from Silicon Valley Bank with whom we had entered into a long-term financing

arrangement on December 16, 2016. The loan has an interest-only period that expires on July 1, 2018, at which point we will be obligated to make thirty
consecutive equal monthly payments of principal (each in an amount that will fully amortize the loan), plus accrued interest. Interest accrues at a floating per
annum rate equal to the lender’s prime rate minus 1.75%. As a condition to the loan, we agreed to pay a final payment fee of 7.5%, or $375,000, upon
repayment of the loan. The final payment fee was recorded in long-term debt with an offsetting reduction in long-term debt and was accounted for as a debt
discount.

Pursuant to the loan agreement we have pledged substantially all of our assets, excluding intellectual property, as collateral. The obligations under the
loan agreement are subject to acceleration upon the occurrence of specified events of default, including a material adverse change in our business, operations,
financial, or other condition. We assessed the likelihood of the lender accelerating payment of the loan due to a material adverse change in our business,
operations, financial, or other condition as remote. As such, as of December 31, 2017, the classification of the loan is split between current and noncurrent
based on the timing of payment obligations. The term loan agreement contains customary conditions to borrowings, events of default and negative covenants,
including covenants that could limit our ability to, among other things, incur additional indebtedness, liens or other encumbrances; make dividends or other
distributions; buy, sell or transfer assets; engage in any new line of business; and enter into certain transactions with affiliates. We were in compliance with
our covenants as of December 31, 2017.

Also, in connection with the drawdown of the loan, we also granted the financial institution 7,069 Series A-1 Preferred Stock warrants at an exercise
price of $12.38 per share. The fair value of the warrants on the date of issuance was $53,000, determined using the Black-Scholes option-pricing model, and
was recorded as a discount to the note and as a warrant liability on the accompanying consolidated balance sheets. In connection with the merger and
conversion of all outstanding Series A-1 preferred stock, the warrants became exercisable for 7,069 fully vested shares of our common stock. As a result of
the change in the underlying shares, the warrants were equity-classified beginning on July 24, 2017.  

The debt discount is being amortized to interest expense using the effective interest method over the repayment term of the initial loan amount. Non-

cash interest expense associated with the amortization of the discount was $87,000, for year ended December 31, 2017. The unamortized discount was
$341,000 as of December 31, 2017.

11. Commitments and Contingencies

Operating Lease

In 2016, we entered into a non-cancelable operating lease to rent office and laboratory space in Seattle, Washington. In April 2016, we amended the
agreement to lease additional premises adjacent to our existing leased premises. Under our lease agreements, we lease approximately 11,158 square feet of
office and laboratory space with an annual base rent of $566,000 in the first year, which will increase by 3% each year thereafter. The leases expire on
December 31, 2019 and has two options to extend the lease term with each option enabling us to extend the lease term by twelve months. As required by the
terms of the lease, in May 2017, we entered into a line of credit to establish collateral to support the security deposit in an amount of $132,000. This is
recorded as restricted cash in the accompanying consolidated balance sheets.

F-18

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

We recognize rent expense on a straight-line basis over the lease period and accrue for rent expense incurred but not paid. The lease also requires us to
pay additional amounts for operating and maintenance expenses. Rent expense was $529,000, $267,000 and $43,000 for the years ended December 31, 2017,
2016 and 2015, respectively.

Future minimum lease payments for our non-cancelable operating leases at December 31, 2017 are as follows (in thousands):

2018
2019
2020
2021
2022
Total future minimum lease payments

  Minimum Lease Payments

$

$

605 
606 
— 
— 
— 
1,211

In January 2018, we entered into a lease amendment for approximately 6,184 square feet of additional office and laboratory space adjacent to our

existing leased premises in Seattle, Washington. The lease expires on December 31, 2019 and has two options to extend the lease term with each option
enabling us to extend the lease term by twelve months. The annual base rent due under the lease is $295,000 for the first year and will increase by 3.0% each
year thereafter. Lease payments in connection with this amendment are not included in the table above.

12. License and Collaboration Agreement

In October 2015, we entered into a Collaboration and Licensing Agreement with Kite Pharma, Inc. to discover and develop protein-based

immunotherapies targeting the immune synapse to treat cancer. Under our agreement, we are to perform certain research services and grant to Kite an
exclusive license to two programs from our transmembrane immunomodulatory protein (TIP™) technology, which Kite is planning to further engineer into
chimeric antigen receptor (“CAR”) and T cell receptor (“TCR”) product candidates.

Under the terms of the Collaboration Agreement, Kite made upfront payments to us of $5.5 million, which were initially recorded as deferred revenue.

We will also be eligible to receive milestone payments based upon the successful achievement of pre-specified research, clinical, and regulatory milestones
totaling up to $530.0 million plus royalty payments on product sales, if any. Kite will receive an exclusive, worldwide license to research, develop, and
commercialize engineered autologous T cell therapies incorporating two programs coming from our platform.

On October 20, 2017, we entered into an amendment with Kite to extend the research term of the Collaboration Agreement. Under the amended

agreement, we are eligible to receive an additional $450,000 research support payment from Kite in two tranches (instead of a single tranche as previously
contemplated by the original Collaboration Agreement) (the “Amendment”). The Amendment also amended and restated the original research plan. We
adjusted our estimated service period over the extended term and have adjusted the revenue recognition accordingly.

We recorded revenue of $1.7 million, $2.9 million and $492,000 for the years ended December 31, 2017, 2016 and 2015, respectively.

13. Convertible Preferred Stock

Between January 2015 and November 2015, we issued and sold 1,212,436 shares of Series Seed convertible preferred stock and received a total of

$610,000. In April 2016, we issued and sold an additional 1,272,064 shares of Series Seed convertible preferred stock and received a total of $640,000.

In June 2016, the we issued and sold 1,827,270 shares of Series A convertible preferred stock and received $10.3 million. We incurred $48,000 of
issuance costs related to the June 2016 issuance. In March 2017, we issued and sold 707,330 shares of Series A convertible preferred stock and received a
total of $4.0 million. In April 2017, prior to the execution and delivery of the Merger Agreement certain holders of our Series A-1 convertible preferred stock
purchased 2,947,211 shares

F-19

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

of Series A-1 preferred stock for $16.7 million in proceeds. Contemporaneously with the execution and delivery of the Merger Agreement certain of our pre-
existing stockholders entered into a subscription agreement with us pursuant to which such stockholders purchased immediately prior to the closing of the
merger 1,335,118 shares of our convertible preferred stock at a purchase price of $12.74 per share for an aggregate purchase price of approximately $17.0
million.

Upon the closing of the merger, all outstanding shares of our convertible preferred stock converted into 9,301,433 shares of common stock. As of

December 31, 2017, we do not have any convertible preferred stock outstanding.

A summary of convertible preferred stock as of December 31, 2016 is as follows (amounts in thousands, except share and per share data):

Series Seed
Series A
Total

Issued Price
per Share

Shares
Authorized

December 31, 2016
Shares
Issued and
Outstanding  

Aggregate
Liquidation
Preference

Carrying
Value

  $
  $

0.51     
5,000,000     
5.66      17,081,852     
       22,081,852     

2,484,500    $
1,827,270     
4,311,770    $

1,250    $
10,333     
11,583    $

1,250 
10,285 
11,535

The convertible preferred stock had the following rights, preferences and privileges: full voting rights and powers as common stock on an as-

converted basis, dividends at a rate of six percent of the original issue price per share per annum, rights and obligations to participate in future tranches,
optional conversion features, mandatory conversion features, special conversion features and a liquidation preference of $5.66 per share plus any declared but
unpaid dividends.

Preferred Stock Warrants

In connection with our drawdown of a term loan on June 30, 2017, we granted the lender 7,069 of fully vested Series A-1 preferred stock warrants at

an exercise price of $12.38 per share and a term of ten years. The fair value of the warrants on the date of issuance was $53,000 and was recorded as a
discount to the note and as a warrant liability within the accompanying consolidated balance sheets. The warrants were initially classified as a liability
because the underlying to the warrants were puttable shares.

On July 24, 2017, in connection with the merger and conversion of all outstanding Series A-1 preferred stock, the warrants became exercisable for

7,069 fully vested shares of our common stock. As a result of the change in the underlying shares, the warrants were equity-classified beginning on July 24,
2017. As a result of the equity classification, the warrant liability was remeasured as of July 24, 2017 and the change in fair value was recognized within other
(income) expense in our consolidated statements of operations and comprehensive income (loss) and the carrying value of the revised warrant liability was
reclassified to additional paid-in capital within stockholders’ deficit.

14. Stockholders’ Deficit

Common Stock

We had 13,831,178 and 608,701 shares of common stock outstanding as of December 31, 2017 and 2016, respectively. Shares of common stock

reserved for future issuance were as follows:

Shares to be issued upon conversion of convertible preferred stock
Shares to be issued upon exercise of outstanding stock options
Shares to be issued upon conversion of common stock warrants
Shares available for future stock grants
Shares to be issued under employee stock purchase plan
Shares of common stock reserved for future issuance

F-20

December 31,

2017

2016

—   
1,611,996   
24,123   
576,722   
45,211   
2,258,052   

4,311,770 
520,739 
12,422 
545,078 
— 
5,390,009

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

In December 2017, we repurchased 50,467 shares of unvested common stock issued to one of our former employees for the original purchase price of

$0.002 per share.

Common Stock Warrants

In connection with our drawdown of a term loan on June 30, 2017, we granted the lender 7,069 of fully vested Series A-1 preferred stock warrants at

an exercise price of $12.38 per share and a term of ten years. On July 24, 2017, in connection with the merger and conversion of all outstanding Series A-1
preferred stock, the warrants became exercisable for 7,069 fully vested shares of our common stock. Additionally, in connection with the merger, we assumed
4,632 fully vested warrants to purchase common stock at an exercise price of $97.12.

We have also issued common stock warrants on two occasions to certain non-employee professional advisers. On each occasion, the warrants were
convertible into 12,422 shares of common stock. The warrants issued on April 24, 2015 had an exercise price of $0.11 per share, a vesting commencement
date of October 1, 2014, and vested ratably over 24 months. These warrants were exercised in full on March 20, 2017. The warrants issued on April 12, 2017
have an exercise price of $5.02 per share, a vesting commencement date of March 29, 2017, and vest ratably over 48 months. Stock-based compensation
expense related to these warrants is included in general and administrative expenses for all periods presented

Equity Incentive Plans

In July 2017, in connection with the merger, we assumed Nivalis’ Employee Stock Purchase Plan (the ESPP). Upon assumption of the ESPP, there

were 45,211 shares available for issuance under the ESPP. As of December 31, 2017, we have not activated the ESPP.

In July 2017, in connection with the merger, we assumed Nivalis’ 2015 Equity Incentive Plan (the “2015 EIP”). The 2015 EIP provides for the

granting of incentive and nonqualified stock options, stock appreciation rights, restricted stock, restricted stock units, performance-based awards and other
stock-based awards to our employees, directors and consultants. Upon assumption of the 2015 EIP, a total of 658,275 shares of common stock were
authorized for issuance. The 2015 EIP provides that an additional number of shares will automatically be added to the shares authorized for issuance under
the 2015 EIP on January 1 of each calendar year, through January 1, 2025. The number of shares added each year will be equal to: (a) 5% of the total number
of shares of common stock issued and outstanding on December 31 of the preceding calendar year; or (b) such lesser number of shares of common stock
approved by the Board of Directors on or prior to such immediately preceding December 31. On January 1, 2018 a total of 691,558 additional shares were
automatically added to the shares authorized for issuance under the 2015 EIP.

In February 2015, our board of directors approved the 2015 Stock Plan (the “2015 Plan”) to provide incentive stock options and non-qualified stock

options to employees, non-qualified stock options to members of the board of directors and advisory board, and non-employees. The terms of the stock
awards, including vesting requirements, are determined by the board of directors, subject to the provisions of the 2015 Plan. Stock options granted under the
2015 Plan generally vest within four years and vested options are exercisable from the grant date until ten years after the date of grant. Vesting of certain
employee options may be accelerated in the event of a change in control of the Company. We grant stock options to employees with exercise prices equal to
the fair value of our common stock on the date of grant. The term of incentive stock options may not exceed ten years from the date of grant.

As of December 31, 2017, a total of 2,370,395 shares of common stock were authorized for issuance under our 2015 Plan and 2015 EIP, of which

576,722 shares were available for future grants.

F-21

 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

A summary of stock option activity under our plans is presented below:

Outstanding at December 31, 2015
Granted
Exercised
Forfeited/Expired
Outstanding at December 31, 2016

Options assumed in the merger
Options assumed in the merger, expired during period
Granted
Exercised
Forfeited/Expired
Outstanding at December 31, 2017

Vested and expected to vest after December 31, 2017

Exercisable at December 31, 2017

Options
Outstanding

Weighted-
average
Exercise
Price

Weighted-
average
Remaining
Contract
Term
(in years)

Aggregate
Intrinsic
Value
(in thousands)

401,688    $
512,844    $
(111,802)   $
(281,991)   $
520,739    $

421,992    $
(253,194)   $
997,368    $
(45,031)   $
(29,878)   $
1,611,996    $

1,611,996    $

377,550    $

0.42   
0.53   
0.45   
0.45   
0.51   

22.97   
30.66   
4.94   
0.45   
4.72   
4.32   

4.32   

5.39   

9.22    $

179 

8.35    $

8.35    $

5.70    $

11,525 

11,525 

2,600

As of December 31, 2017 there was $4.1 million of unrecognized stock-based compensation expense related to nonvested stock options that is
expected to be recognized over a weighted-average period of 3.3 years. The aggregate intrinsic value of stock options exercised during the year ended
December 31, 2017 was $18,000. The total fair value of shares vested during the year ended December 31, 2017 was $139,000.

Stock-Based Compensation Expense

We use the Black-Scholes option pricing model to estimate the fair value of stock options at the grant date. The Black-Scholes option pricing model

requires us to make certain estimates and assumptions, including assumptions related to the expected price volatility of our stock, the period during which the
options will be outstanding, the rate of return on risk-free investments, and the expected dividend yield of our stock. The fair values of stock options granted
to employees were calculated using the following assumptions:

Weighted-average estimated fair value
Risk-free interest rate (1)
Expected term of options (in years) (2)
Expected stock price volatility (3)
Expected dividend yield (4)

  $

2017
4.69
1.90% - 2.26%
5.69 - 6.32
72% - 83%
—%

    $

Years Ended December 31,
2016
0.42
1.14% - 2.24%
5.22 – 7.00
72% - 79%
—%

    $

2015
0.38
1.79% - 2.24%
5.21 - 10.00
70% - 85%
—%

(1)

(2)

(3)

The risk-free interest rate assumption was based on zero-coupon U.S. Treasury instruments that had terms consistent with the expected term of our
stock option grants.

We used the “simplified method” for options to determine the expected term of stock option granted to employees. Under this approach, the weighted-
average expected life is presumed to be the average of the vesting term and the contractual term of the option.

Volatility is a measure of the amount by which a financial variable, such as share price, has fluctuated or is expected to fluctuate during a period. We
analyzed the stock price volatility of companies at a similar stage of development to estimate expected volatility of our stock price.

(4)

We have never declared or paid any cash dividends and do not presently plan to pay cash dividends in the foreseeable future.

F-22

 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
   
   
 
 
   
   
 
 
   
   
 
 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

The fair value of each non-employee stock option is estimated at the date of grant using the Black-Scholes option pricing model and are remeasured

over the vesting term, as earned. Assumptions used in valuing non-employee stock options are generally consistent with those used for employee stock
options with the exception that the expected term is over the contractual life.

Stock-based compensation expense is classified in the statements of operations as follows (amounts in thousands):

Employee:

Research and development
General and administrative

Non-Employee:

Research and development
General and administrative

Total stock-based compensation expense

2017

Years Ended December 31,
2016

2015

  $

  $

183    $
588   

52   
15   
838    $

14    $
53   

5   
5   
77    $

— 
10 

2 
4 
16

In May 2016 we extended the vesting period of 567,500 unvested share options held by 5 employees. As a result of this modification, we recognized

additional compensation expense of $4,000 for the year ended December 31, 2016.

15. Income Taxes
On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”). The
Tax Act incorporates broad and complex changes to the U.S. tax code. The main provision of the Tax Act that is applicable to us is the reduction of a
maximum federal tax rate of 35% to a flat tax rate of 21%, effective January 1, 2018. We incorporated the change in federal tax rates in our annual tax
provision. As a result of the rate change, we reduced our net deferred tax asset balance by $2.0 million, with a corresponding reduction to our valuation
allowance of $2.2 million, resulting in a deferred income tax benefit of $200,000. At December 31, 2017, we have not completed accounting for the tax
effects of Tax Act.  We have made reasonable estimates of the effects of the Tax Act on existing deferred tax balances. We will continue to refine our
calculations as additional analysis is completed. Our estimates may be affected as we gain a more thorough understanding of the Tax Act.

Our entire income (loss) before taxes is considered domestic (United States) as we have no foreign operations.

We received $5.5 million in advanced payments from Kite in 2015. As of December 31, 2016, $2.0 million of this $5.5 million was deferred for

financial reporting purposes but was included in taxable income for the year ended December 31, 2016. As a result of this timing difference, we incurred
current federal and state income tax expense in the year ended December 31, 2016. We expect to be in a loss position for tax purposes in 2017 and thereafter
for the foreseeable future.

The provision for income taxes is composed of the following (in thousands):

Current:

U.S. - Federal
U.S. - State
Total current

Deferred:

U.S. - Federal
U.S. - State
Total deferred

Total income tax expense

Years Ended December 31,

2017

2016

  $

  $

(1)   $
5   
4   

(204)  
—   
(204)  
(200)   $

4 
62 
66 

— 
— 
— 
66

F-23

 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

The effective tax rate of the provision for income taxes differs from the federal statutory rate as follows:

U.S. Statutory rate
Effect of:
State taxes (net of federal benefit)
Permanent differences
Federal research and development credit
Change in valuation allowance
Benefit of a lower tax rate
Stock-based compensation
Non-deductible merger costs
Bargain purchase gain
Tax rate change
Effective income tax rate

Years Ended December 31,

2017

2016

35.0%  

(1.6%)  
(0.1%)  
4.4%  
(19.4%)  
0.2%  
(2.6%)  
(17.6%)  
28.9%  
(24.7%)  
2.5%  

34.0%

5.6%
(0.3%)
9.4%
(54.0%)
0.9%
(1.2%)
(—%)
(—%)
(—%)
(5.6%)

We recorded a tax benefit of $200,000 for the year ended December 31, 2017 and tax expense of $66,000 for the year ended December 31, 2016,

representing effective tax rates of 2.5% and (5.6)% for the years ended December 31, 2017 and 2016, respectively. The difference between the U.S. federal
statutory tax rate of 35% and our effective tax rate in all periods is primarily due to a full valuation allowance related to our deferred tax assets, the
generation, and consumption of, federal R&D tax credits, and, specific to 2017, a change in future federal income tax rates due to tax reform, non-deductible
transaction costs, and the non-taxable bargain purchase gain recorded on the Nivalis merger.

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting

purposes and the amounts used for income tax purposes. The following table represents the significant components of our deferred tax assets and liabilities
for the periods presented (in thousands):

Deferred tax assets:

Net operating loss
Deferred compensation
Research and development credits
Intangible asset basis
Deferred revenue
Deferred rent
Stock based compensation
Other
Gross deferred tax assets
Valuation allowance
Total deferred tax assets, net of valuation allowance

Deferred tax liabilities:
Prepaid expenses
Fixed asset basis
Intangible asset basis
Total deferred tax liability

Net deferred tax assets and liabilities

December 31,

2017

2016

  $

  $

2,475    $
—   
458   
—   
58   
24   
810   
12   
3,837   
(3,722)  
115   

(63)  
(110)  
(247)  
(420)  
(305)   $

— 
24 
103 
16 
800 
58 
3 
— 
1,004 
(786)
218 

(12)
(206)

(218)
—

As part of the merger with Nivalis, we identified $1.5 million of acquired IPR&D. IPR&D acquired in a business combination is an indefinite-lived

intangible asset until the completion or abandonment of the associated R&D efforts. Once the R&D efforts are completed or abandoned, the IPR&D will
either be impaired or amortized over the asset life as a finite-lived intangible.

F-24

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

As the acquired IPR&D is not completed, and has not been abandoned, it is considered indefinite-lived for accounting purposes. Any future reversal
of a deferred tax liability resulting from IPR&D costs cannot be scheduled for tax purposes and therefore cannot be considered as a source of future taxable
income. Thus, we have recorded a deferred tax liability of $305,000 as a result of the acquired IPR&D having a financial reporting basis of $1.5 million and a
tax basis of zero.

A valuation allowance is provided for deferred tax assets where the recoverability of the assets is uncertain. The determination to provide a valuation

allowance is dependent upon the assessment of whether it is more likely than not that sufficient taxable income will be generated to utilize the deferred tax
assets. Based on the weight of the available evidence, which includes our historical operating losses, uncertainty of future taxable income, and the
accumulated deficit, we provided a full valuation allowance against our deferred tax assets. The valuation allowance increased by $2.9 million and $629,000
during the year ended December 31, 2017 and December 31, 2016, respectively.

We have net operating loss carryforwards as follows (in thousands):

Federal

Federal

Federal and state net operating loss carryforwards would begin to expire in 2037.

We have net research and development tax credit carryforwards as follows (in thousands):

December 31,

2017

2016

  $

11,784    $

—

2017

December 31,

458    $

2016

103

  $

Federal research and development tax credit carryforwards begin to expire in 2035.

Current tax laws impose substantial restrictions on the utilization of R&D credit and net operating loss carryforwards in the event of an ownership
change, as defined by the Internal Revenue Code Section 382 and 383. Such an event may limit our ability to utilize our net operating losses and R&D tax
credit carryforwards. Under Internal Revenue Code Section 382 and 383, the Q3 2017 merger with Nivalis is likely considered an ownership change with
respect to the potential limitation of the Nivalis federal tax credits and net operating losses. As such, it is likely that any future utilization of Nivalis federal
tax credits and net operating losses is substantially limited.

Therefore, as of December 31, 2017, all Nivalis tax credit and net operating loss carryforwards have been reduced to zero.

We account for uncertainty in income taxes in accordance with ASC 740. Tax positions are evaluated in a two-step process, whereby we first
determine whether it is more likely than not that a tax position will be sustained upon examination by the tax authority, including resolutions of any related
appeals or litigation processes, based on technical merit. If a tax position meets the more-likely-than-not recognition threshold it is then measured to
determine the amount of benefit to recognize in the financial statements. The tax position is measured as the largest amount of benefit that is greater than 50%
likely of being realized upon ultimate settlement.

The following table summarized the activity related to unrecognized tax benefits (in thousands):

Unrecognized benefits – beginning of year
Gross decreases – prior year tax positions
Gross increases – current year tax positions
Unrecognized benefit – end of year

December 31,

2017

2016

  $

  $

34    $
(4)  
84   
114    $

7 
— 
27 
34

All of the unrecognized tax benefits as of December 31, 2017 are accounted for as a reduction in our deferred tax assets. Due to our valuation

allowance, none of the $114,000 of unrecognized tax benefits would affect our effective tax rate,

F-25

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ALPINE IMMUNE SCINECES, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

if recognized. We do not believe it is reasonably possible that our unrecognized tax benefits will significantly change in the next twelve months.

We recognize interest and penalties related to unrecognized tax benefits as income tax expense. There were no accrued interest or penalties related to

unrecognized tax benefits for 2017 and 2016.

We do not expect any significant change in our unrecognized tax benefits during the next twelve months.

Our material income tax jurisdictions are the United States (federal), and California (state). We are subject to audit for tax years 2012 and forward for

federal purposes, and 2015 and forward for California.

16. Related Party Transactions

We have a shared services agreement with Alpine BioVentures GP, LLC, pursuant to which we incurred costs of $0, $17,000 and $47,000 years ended

December 31, 2017, 2016 and 2015, respectively. We had an accrual of $5,000 related to the shared services agreement at December 31, 2016, which was
paid in April 2017.

17. 401(k) Retirement Plan

We have adopted a 401(k) plan. To date, we have not matched employee contributions to the plan. All employees are eligible to participate, provided

they meet the requirements of the plan.

F-26

 
Exhibit 3.1

CERTIFICATE OF AMENDMENT

TO THE

AMENDED AND RESTATED

CERTIFICATE OF INCORPORATION

OF

NIVALIS THERAPEUTICS, INC.

Nivalis Therapeutics, Inc. (the “Corporation”), a corporation organized and existing under and by virtue of the General Corporation Law of the State of
Delaware, as amended (the “DGCL”), hereby certifies as follows:

A.

B.

The name of the Corporation is Nivalis Therapeutics, Inc. The predecessor to the Corporation, N30 Pharmaceuticals, LLC, was
originally formed as a limited liability company under Section 18-201 of the Delaware Limited Liability Company Act on March 30,
2007. Effective as of 12:01 a.m. Eastern Time on August 1, 2012, the Corporation’s predecessor was converted into a Delaware
corporation pursuant to a Certificate of Conversion filed with the Secretary of State of the State of Delaware on July 31, 2012. The
Corporation’s original Certificate of Incorporation was filed with the Secretary of State of the State of Delaware on July 31, 2012
under the name N30 Pharmaceuticals, Inc. On February 11, 2015, the Corporation changed its name from N30 Pharmaceuticals, Inc. to
Nivalis Therapeutics, Inc.

This Certificate of Amendment to the Amended and Restated Certificate of Incorporation (the “Certificate of Amendment”) amends
the Corporation’s Amended and Restated Certificate of Incorporation filed with the Secretary of State of the State of Delaware on June
22, 2015 (the “Prior Certificate”), and has been duly adopted by the Corporation’s Board of Directors and stockholders in accordance
with the provisions of Sections 242 and 228 of the DGCL.

C.

Article IV of the Prior Certificate is hereby amended to add the following Section D:

“D. Immediately upon the filing of this Certificate of Amendment of Amended and Restated Certificate of Incorporation with the Secretary of State of the
State of Delaware each one (1) share of Common Stock outstanding immediately prior to such filing shall be automatically reclassified into one-fourth (1/4)
of one share of Common Stock. The aforementioned reclassification shall be referred to collectively as the “Reverse Split.”

The Reverse Split shall occur without any further action on the part of the Corporation or stockholders of the Corporation and whether or not certificates
representing such stockholders’ shares prior to the Reverse Split are surrendered for cancellation. No fractional interest in a share of Common Stock shall be
deliverable upon the Reverse Split. All shares of Common Stock (including fractions thereof) issuable upon the Reverse Split held by a holder prior to the
Reverse Split shall be aggregated for purposes of determining whether the Reverse Split would result in the issuance of any fractional share. Any fractional
share resulting from such aggregation upon the Reverse Split shall be rounded down to the nearest whole number. Each holder who would otherwise be
entitled to a fraction of a share of Common Stock upon the Reverse Split (after aggregating all fractions of a share to which such stockholder would otherwise
be entitled) shall, in lieu thereof, be entitled to receive a cash payment in an amount equal to the fraction to which the stockholder would otherwise be entitled
multiplied by the closing price of the Corporation’s Common Stock as reported on The NASDAQ Global Market on the trading day immediately preceding
the filing of this Certificate of Amendment

 
 
 
 
 
of Amended and Restated Certificate of Incorporation with the Secretary of State of the State of Delaware. The Corporation shall not be obliged to issue
certificates evidencing the shares of Common Stock outstanding as a result of the Reverse Split unless and until the certificates evidencing the shares held by
a holder prior to the Reverse Split are either delivered to the Corporation or its transfer agent, or the holder notifies the Corporation or its transfer agent that
such certificates have been lost, stolen or destroyed and executes an agreement satisfactory to the Corporation to indemnify the Corporation from any loss
incurred by it in connection with such certificates.”

D.

The Certificate of Amendment of the Prior Certificate so adopted reads in full as set forth above and is hereby incorporated by
reference. All other provisions of the Prior Certificate remain in full force and effect.

IN WITNESS WHEREOF, Nivalis Therapeutics, Inc. has caused this Certificate of Amendment to be signed by Michael Carruthers, a duly

authorized officer of the Corporation, on July 24, 2017.

NIVALIS THERAPEUTICS, INC.

By:
Name:
Title:

/s/ R. Michael Carruthers
R. Michael Carruthers
Interim President and Chief Financial Officer

2

 
 
 
 
 
 
CERTIFICATE OF AMENDMENT

TO THE

AMENDED AND RESTATED

CERTIFICATE OF INCORPORATION

OF

NIVALIS THERAPEUTICS, INC.

Nivalis Therapeutics, Inc. (the “Corporation”), a corporation organized and existing under and by virtue of the General Corporation Law of the

State of Delaware, as amended (the “DGCL”), hereby certifies as follows:

A.

The name of the Corporation is Nivalis Therapeutics, Inc. The predecessor to the Corporation, N30 Pharmaceuticals, LLC, was

originally formed as a limited liability company under Section 18-201 of the Delaware Limited Liability Company Act on March 30, 2007. Effective as of
12:01 a.m. Eastern Time on August 1, 2012, the Corporation’s predecessor was converted into a Delaware corporation pursuant to a Certificate of Conversion
filed with the Secretary of State of the State of Delaware on July 31, 2012. The Corporation’s original Certificate of Incorporation was filed with the
Secretary of State of the State of Delaware on July 31, 2012 under the name N30 Pharmaceuticals, Inc. On February 11, 2015, the Corporation changed its
name from N30 Pharmaceuticals, Inc. to Nivalis Therapeutics, Inc.

B.

This Certificate of Amendment to the Amended and Restated Certificate of Incorporation (the “Certificate of Amendment”) amends
the Corporation’s Amended and Restated Certificate of Incorporation filed with the Secretary of State of the State of Delaware on June 22, 2015 (the “Prior
Certificate”), and has been duly adopted by the Corporation’s Board of Directors and stockholders in accordance with the provisions of Sections 242 and 228
of the DGCL.

C.

Article I of the Prior Certificate is hereby amended and restated to read as follows:

The name of the corporation is Alpine Immune Sciences, Inc. (the “Corporation”).”

“ARTICLE I 

D.

The Certificate of Amendment of the Prior Certificate so adopted reads in full as set forth above and is hereby incorporated by

reference. All other provisions of the Prior Certificate remain in full force and effect.

IN WITNESS WHEREOF, Nivalis Therapeutics, Inc. has caused this Certificate of Amendment to be signed by Mitchell H. Gold, M.D., a duly

authorized officer of the Corporation, on July 24, 2017.

NIVALIS THERAPEUTICS, INC.

By:
Name:
Title:

/s/ Mitchell H. Gold
Mitchell H. Gold, M.D.
Chief Executive Officer

3

 
 
 
 
AMENDED AND RESTATED
CERTIFICATE OF INCORPORATION
OF
NIVALIS THERAPEUTICS, INC.

(Pursuant to Sections 242 and 245 of the
General Corporation Law of the State of Delaware)

Nivalis Therapeutics, Inc. (the “Corporation”), a corporation organized and existing under the General Corporation Law of the State of

Delaware, as amended (the “DGCL”),

DOES HEREBY CERTIFY:

1.

2.

The name of the Corporation is Nivalis Therapeutics, Inc.  The predecessor to the Corporation, N30 Pharmaceuticals, LLC, was originally formed
as a limited liability company under Section 18-201 of the Delaware Limited Liability Company Act on March 30, 2007.  Effective as of 12:01
a.m. Eastern Standard Time on August 1, 2012, the Corporation’s predecessor was converted into a Delaware corporation pursuant to a Certificate
of Conversion filed with the Delaware Secretary of State on July 31, 2012.  The Corporation’s original Certificate of Incorporation was filed with
the Delaware Secretary of State on July 31, 2012 under the name N30 Pharmaceuticals, Inc.  On February 11, 2015, the Corporation changed its
name from N30 Pharmaceuticals, Inc. to Nivalis Therapeutics, Inc.

This Amended and Restated Certificate of Incorporation (the “Amended and Restated Certificate of Incorporation”) amends and restates the
Corporation’s Amended and Restated Certificate of Incorporation filed with the Secretary of State of the State of Delaware on February 9, 2015,
as amended by the Certificate of Amendment of Amended and Restated Certificate of Incorporation filed with the Secretary of State of the State
of Delaware on February 11, 2015 (the “Prior Certificate”), and has been duly adopted in accordance with the provisions of Sections 242, 245
and 228 of the DGCL.

3.

The text of the Prior Certificate is hereby amended and restated in its entirety to read as set forth in Exhibit A attached hereto.

IN WITNESS WHEREOF, this Amended and Restated Certificate of Incorporation has been executed by a duly authorized officer of this

Corporation on this 19th day of June, 2015.

By:

/s/ Jon Congleton
Jon Congleton, Chief Executive Officer

4

 
 
 
 
EXHIBIT A

The name of this Corporation is Nivalis Therapeutics, Inc.

ARTICLE I

ARTICLE II

The address of the registered office of the Corporation in the State of Delaware is 615 South DuPont Highway, Dover, County of Kent, Delaware

19901.  The name of its registered agent at such address is National Corporate Research, LTD.

The nature of the business or purposes to be conducted or promoted is to engage in any lawful act or activity for which corporations may be

organized under the DGCL.

ARTICLE III

ARTICLE IV

A.

The total number of shares of all classes of stock which the Corporation shall have authority to issue is (i) 200,000,000 shares of

Common Stock, $0.001 par value per share (“Common Stock”), and (ii) 10,000,000 shares of Preferred Stock, $0.001 par value per share (“Preferred
Stock”).

B.

The Preferred Stock may be issued from time to time in one or more series.  The Board of Directors of the Company (the

“Board”) is hereby expressly authorized, by filing a certificate (“Certificate of Designation”) pursuant to the DGCL, to provide for the issue of any or all of
the unissued and undesignated shares of the Preferred Stock in one or more series, and to fix the number of shares and to determine or alter for each such
series, such voting powers, full or limited, or no voting powers, and such designation, preferences and relative, participating, optional, or other rights and such
qualifications, limitations or restrictions thereof as shall be stated and expressed in the resolution or resolutions adopted by the Board providing for the
issuance of such shares and as may be permitted by the DGCL.  The Board of Directors is also expressly authorized to increase or decrease the number of
shares of any series subsequent to the issuance of shares of that series, but not below the number of shares of such series then outstanding.  In case the number
of shares of any series shall be decreased in accordance with the foregoing sentence, the shares constituting such decrease shall resume the status that they
had prior to the adoption of the resolution originally fixing the number of shares of such series.  The number of authorized shares of Preferred Stock may be
increased or decreased (but not below the number of shares thereof then outstanding) by the affirmative vote of the holders of a majority of the voting power
of the stock of the Company entitled to vote thereon, without a separate vote of the holders of the Preferred Stock, or of any series thereof, unless a vote of
any such holders is required pursuant to the terms of any certificate of designation filed with respect to any series of Preferred Stock.

C.

Each outstanding share of Common Stock shall entitle the holder thereof to one vote on each matter properly submitted to the

stockholders of the Company for their vote; provided, however, that, except as otherwise required by law, holders of Common Stock shall not be entitled to
vote on any amendment to this Amended and Restated Certificate of Incorporation (this “Certificate of Incorporation”) (including any Certificate of
Designation filed with respect to any series of Preferred Stock) that relates solely to the terms of one or more outstanding series of Preferred Stock if the
holders of such affected series of Preferred Stock are entitled, either separately or together as a class with the holders of one or more other series of Preferred
Stock, to vote thereon by law or pursuant to this Certificate of Incorporation (including any Certificate of Designation filed with respect to any series of
Preferred Stock).

5

 
ARTICLE V

In furtherance and not in limitation of the powers conferred by the DGCL, subject to the rights of the holders of any series of Preferred Stock that
may be designated from time to time, the Board is expressly authorized to adopt, amend or repeal the bylaws of the Corporation (the “Bylaws”), subject to the
power of the stockholders of the Corporation to alter or repeal any Bylaws whether adopted by them or otherwise; provided, however, that, in addition to any
vote of the holders of any class or series of stock of the Corporation required by law or by this Certificate of Incorporation (including any Certificate of
Designation that may be filed from time to time), the affirmative vote of holders of not less than sixty-six and two-thirds percent (66 2/3%) of the votes of all
outstanding shares of capital stock of the Corporation entitled to vote generally in the election of directors, considered for purposes hereof as a single class,
shall be required for the stockholders to adopt new Bylaws or to alter, amend or repeal the Bylaws.

ARTICLE VI

A.

The management of the business and the conduct of the affairs of the Corporation shall be vested in the Board.  The number of

directors which shall constitute the whole Board shall be fixed exclusively by one or more resolutions adopted from time to time by the Board.

B.

The directors shall be divided into three classes, designated as Class I, Class II and Class III, as nearly equal in number as
possible.  Directors shall be assigned to each class in accordance with a resolution or resolutions adopted by the Board.  At the first annual meeting of
stockholders following the effectiveness of this Certificate of Incorporation (the “Qualifying Record Date”), the term of office of the Class I directors shall
expire and Class I directors shall be elected for a full term of three years.  At the second annual meeting of stockholders following the Qualifying Record
Date, the term of office of the Class II directors shall expire and Class II directors shall be elected for a full term of three years.  At the third annual meeting of
stockholders following the Qualifying Record Date, the term of office of the Class III directors shall expire and Class III directors shall be elected for a full
term of three years.  At each succeeding annual meeting of stockholders, directors shall be elected for a full term of three years to succeed the directors of the
class whose terms expire at such annual meeting.  Notwithstanding the foregoing provisions of this Article VI.B., each director shall serve until his or her
successor is duly elected and qualified, or until his or her earlier death, resignation or removal.  No decrease in the number of directors constituting the Board
shall shorten the term of any incumbent director.

C.

The Board or any individual director may be removed from office only for cause at a meeting of stockholders called for that

purpose, by the affirmative vote of the holders of at least at least sixty-six and two-thirds percent (66 2/3%) of the voting power of all the then outstanding
shares of voting stock of the Corporation entitled to vote at an election of directors, voting together as a single class.

D.

Any vacancies on the Board resulting from death, resignation, disqualification, removal or other causes and any newly created

directorships resulting from any increase in the number of directors shall, unless the Board determines by resolution that any such vacancies or newly created
directorships shall be filled by the stockholders, except as otherwise provided by law and or by this Certificate of Incorporation or any Certificate of
Designation that may be filed with respect to a series of Preferred Stock, be filled only by the affirmative vote of a majority of the directors then in office,
even though less than a quorum of the Board, and not by the stockholders.  Any director elected in accordance with the preceding sentence shall hold office
for the remainder of the full term of the director for which the vacancy was created or occurred and until such director’s successor shall have been elected and
qualified.

E.

F.

The directors of the Corporation need not be elected by written ballot unless the Bylaws so provide.

There shall be no cumulative voting in the election of directors.

6

 
ARTICLE VII

A.

Subject to the rights of the holders of any series of Preferred Stock or any other class of stock or series thereof having a preference

over the Common Stock as to dividends or upon liquidation, any action required or permitted to be taken by the stockholders of the Corporation must be
effected at a duly called annual or special meeting of the stockholders of the Corporation.  The taking of any action by written consent of the stockholders in
lieu of a meeting of the stockholders is specifically denied.

B.

Special meetings of the stockholders of the Corporation may be called, for any purpose or purposes, by the Secretary of the

Corporation at the direction of the Board, pursuant to a resolution adopted by a majority of the entire Board, but such special meetings may not be called by
any other person or persons.

C.

Advance notice of stockholder nominations for the election of directors and of business to be brought by stockholders before any

meeting of the stockholders of the Corporation shall be given in the manner provided in the Bylaws of the Corporation.

ARTICLE VIII

A.

To the fullest extent permitted by the DGCL, a director of the Corporation shall not be personally liable to the Corporation or its

stockholders for monetary damages for breach of fiduciary duty as a director.  If the DGCL is amended after approval by the stockholders of this Article VIII
to authorize corporate action further eliminating or limiting the personal liability of directors, then the liability of a director of the Corporation shall be
eliminated or limited to the fullest extent permitted by the DGCL as so amended.

B.

Any repeal or modification of the foregoing provisions of this Article VIII shall not adversely affect any right or protection of a

director of the Corporation existing at the time of, or increase the liability of any director of the Corporation with respect to any acts or omissions of such
director occurring prior to, such repeal or modification.

ARTICLE IX

Unless the Corporation consents in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware shall, to the

fullest extent permitted by law, be the sole and exclusive forum for (a) any derivative action or proceeding brought on behalf of the Corporation, (b) any
action asserting a claim of breach of a fiduciary duty owed by any director, officer, employee or agent of the Corporation to the Corporation or the
Corporation’s stockholders, (c) any action asserting a claim arising pursuant to any provision of the DGCL, this Certificate of Incorporation or the Bylaws, or
(d) any action asserting a claim that is governed by the internal affairs doctrine, in each such case subject to the Court of Chancery having personal
jurisdiction over the indispensable parties named as defendants therein and the claim not being one which is vested in the exclusive jurisdiction of a court or
forum other than the Court of Chancery or for which the Court of Chancery does not have subject matter jurisdiction.  Any person purchasing or otherwise
acquiring any interest in any shares of the Corporation’s capital stock shall be deemed to have notice of, and to have consented to the provisions of this
Article IX.

Notwithstanding any other provisions of this Certificate of Incorporation or any provision of law which might otherwise permit a lesser vote or no

vote, but in addition to any affirmative vote of the holders of any particular class or series of the Corporation required by law or by this Certificate of
Incorporation or any Certificate of Designation that may be filed with respect to a series of Preferred Stock, the affirmative vote of the holders of at least
sixty-six and two-thirds percent (66 2/3%) of the voting power of all of the then-outstanding shares of capital stock of the Corporation entitled to vote
generally in the election of directors, voting together as a single class, shall be required to alter, amend or repeal Articles VI, VII, VIII, IX and this Article X.

ARTICLE X

* * *

7

 
Number CS-

Exhibit 4.1

* * Shares

Common Stock

ALPINE IMMUNE SCIENCES, INC
a Delaware Corporation
Incorporated on July 21, 2012

Common Stock
Par Value: $0.001

THIS CERTIFIES THAT  is the record holder of   ( ) shares of Common Stock of Alpine Immune Sciences, Inc., a Delaware corporation (the

“Corporation”), transferable only on the books of the Corporation by the holder, in person, or by duly authorized attorney, upon surrender of this certificate
properly endorsed or assigned.

This certificate and the shares represented hereby are issued and shall be held subject to all the provisions of the Certificate of Incorporation and the

Bylaws of the Corporation and any amendments thereto, all of which the holder of this certificate, by acceptance hereof, assents.

A statement of all of the rights, preferences, privileges and restrictions granted to or imposed upon the respective classes or series of stock of the

Corporation and upon the holders thereof may be obtained by any stockholder without charge upon request delivered to the secretary of the Corporation at the
principal office of the Corporation.

IN WITNESS WHEREOF, the Corporation has caused this certificate to be signed by its duly authorized officers this day of, 2015.

President

Secretary

 
 
 
 
 
 
 
 
 
 
 
 
FOR VALUE RECEIVED HEREBY SELLS, ASSIGNS AND TRANSFERS UNTO SHARES REPRESENTED BY THE WITHIN CERTIFICATE AND
DOES HEREBY IRREVOCABLY CONSTITUTE AND APPOINT ATTORNEY TO TRANSFER THE SAID SHARES ON THE SHARE REGISTER OF
THE WITHIN NAMED CORPORATION WITH FULL POWER OF SUBSTITUTION IN THE PREMISES.

DATED 

NOTICE: THE SIGNATURE ON THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THIS
CERTIFICATE, IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT, OR ANY CHANGE WHATEVER.

(Signature)

 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
THIS  WARRANT  AND  THE  SHARES  ISSUABLE  HEREUNDER  HAVE  NOT  BEEN  REGISTERED  UNDER  THE
SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR THE SECURITIES LAWS OF ANY STATE AND, EXCEPT
AS  SET  FORTH  IN  SECTIONS  5.3  AND  5.4  BELOW,  MAY  NOT  BE  OFFERED,  SOLD,  PLEDGED  OR  OTHERWISE
TRANSFERRED UNLESS AND UNTIL REGISTERED UNDER SAID ACT AND LAWS OR IN FORM AND SUBSTANCE
SATISFACTORY TO THE COMPANY, SUCH OFFER, SALE, PLEDGE OR OTHER TRANSFER IS EXEMPT FROM SUCH
REGISTRATION.

Exhibit 4.5

Company:
Number of Shares:
Type/Series of Stock:
Warrant Price:
Issue Date:
Expiration Date:
Credit Facility:

WARRANT TO PURCHASE STOCK

ALPINE IMMUNE SCIENCES, INC., a Delaware corporation
That number of Shares which Holder is entitled to purchase pursuant to Section 1.7.
Series A-1 Preferred
$2.81 per share
December 16, 2016
December 16, 2026     See also Section 5.1(b).
This Warrant to Purchase Stock (as the same may from time to time be amended, modified,
supplemented or restated, the “Warrant”) is issued in connection with that certain Loan and
Security  Agreement  of  even  date  herewith  between  Silicon  Valley  Bank  and  the  Company
(as  the  same  may  from  time  to  time  be  amended,  modified,  supplemented  or  restated,  the
“Loan Agreement”).

THIS WARRANT CERTIFIES THAT, for good and valuable consideration, SILICON VALLEY BANK (together with
any successor or permitted assignee or transferee of this Warrant or of any shares issued upon exercise hereof, “Holder”) is entitled
to  purchase  the  number  of  fully  paid  and  non-assessable  shares  (the  “Shares”)  of  the  above-stated  Type/Series  of  Stock  (the
“Class”) of the above-named company (the “Company”) at the above-stated Warrant Price, all as set forth above and as adjusted
pursuant  to  Section  2  of  this  Warrant,  subject  to  the  provisions  and  upon  the  terms  and  conditions  set  forth  in  this  Warrant.
Reference is made to Section 5.4 of this Warrant whereby Silicon Valley Bank shall transfer this Warrant to its parent company,
SVB Financial Group.

SECTION 1.

EXERCISE.

1.1

Method of Exercise. Holder may at any time and from time to time exercise this Warrant, in whole or in part,
by delivering to the Company the original of this Warrant together with a duly executed Notice of Exercise in substantially the form
attached hereto as Appendix 1 and, unless Holder is exercising this Warrant pursuant to a cashless exercise set forth in Section 1.2,
a check, wire transfer of same-day funds (to an account designated by the Company), or other form of payment acceptable to the
Company for the aggregate Warrant Price for the Shares being purchased.

 
 
 
1.2

Cashless Exercise. On any exercise of this Warrant, in lieu of payment of the aggregate Warrant Price in the
manner as specified in Section 1.1 above, but otherwise in accordance with the requirements of Section 1.1, Holder may elect to
receive  Shares  equal  to  the  value  of  this  Warrant,  or  portion  hereof  as  to  which  this  Warrant  is  being  exercised.  Thereupon,  the
Company  shall  issue  to  the  Holder  such  number  of  fully  paid  and  non-assessable  Shares  as  are  computed  using  the  following
formula:

X = Y(A-B)/A

where:

X =

Y =

A =

B =

the number of Shares to be issued to the Holder;

the number of Shares with respect to which this Warrant is being exercised (inclusive of the Shares
surrendered to the Company in payment of the aggregate Warrant Price);

the Fair Market Value (as determined pursuant to Section 1.3 below) of one Share; and

the Warrant Price.

1.3

Fair  Market  Value.  If  the  Company’s  common  stock  is  then  traded  or  quoted  on  a  nationally  recognized
securities  exchange,  inter-dealer  quotation  system  or  over-the-counter  market  (a  “Trading  Market”)  and  the  Class  is  common
stock,  the  fair  market  value  of  a  Share  shall  be  the  closing  price  or  last  sale  price  of  a  share  of  common  stock  reported  for  the
Business  Day  immediately  before  the  date  on  which  Holder  delivers  this  Warrant  together  with  its  Notice  of  Exercise  to  the
Company.  If  the  Company’s  common  stock  is  then  traded  in  a  Trading  Market  and  the  Class  is  a  series  of  the  Company’s
convertible preferred stock, the fair market value of a Share shall be the closing price or last sale price of a share of the Company’s
common stock reported for the Business Day immediately before the date on which Holder delivers this Warrant together with its
Notice of Exercise to the Company multiplied by the number of shares of the Company’s common stock into which a Share is then
convertible.  If  the  Company’s  common  stock  is  not  traded  in  a  Trading  Market,  the  Board  of  Directors  of  the  Company  shall
determine the fair market value of a Share in its reasonable good faith judgment.

1.4

Delivery of Certificate and New Warrant. Within a reasonable time after Holder exercises this Warrant in the
manner set forth in Section 1.1 or 1.2 above, the Company shall deliver to Holder a certificate representing the Shares issued to
Holder  upon  such  exercise  and,  if  this  Warrant  has  not  been  fully  exercised  and  has  not  expired,  a  new  warrant  of  like  tenor
representing the Shares not so acquired.

1.5

Replacement  of  Warrant.  On  receipt  of  evidence  reasonably  satisfactory  to  the  Company  of  the  loss,  theft,
destruction  or  mutilation  of  this  Warrant  and,  in  the  case  of  loss,  theft  or  destruction,  on  delivery  of  an  indemnity  agreement
reasonably satisfactory in form, substance and amount to the Company or, in the case of mutilation, on surrender of this Warrant to
the Company for cancellation, the Company shall, within a reasonable time, execute and deliver to Holder, in lieu of this Warrant, a
new warrant of like tenor and amount.

2

 
 
 
 
 
 
1.6

Treatment of Warrant Upon Acquisition of Company.

(a)

Acquisition.  For  the  purpose  of  this  Warrant,  “Acquisition”  means  any  transaction  or  series  of
related transactions involving: (i) the sale, lease, exclusive license, or other disposition of all or substantially all of the assets of the
Company  (ii)  any  merger  or  consolidation  of  the  Company  into  or  with  another  person  or  entity  (other  than  a  merger  or
consolidation  effected  exclusively  to  change  the  Company’s  domicile),  or  any  other  corporate  reorganization,  in  which  the
stockholders of the Company in their capacity as such immediately prior to such merger, consolidation or reorganization, own less
than a majority of the Company’s (or the surviving or successor entity’s) outstanding voting power immediately after such merger,
consolidation or reorganization; or (iii) any sale or other transfer by the stockholders of the Company of shares representing at least
a majority of the Company’s then-total outstanding combined voting power.

(b)

Treatment of Warrant at Acquisition. In the event of an Acquisition in which the consideration to be
received  by  the  Company’s  stockholders  consists  solely  of  cash,  solely  of  Marketable  Securities  or  a  combination  of  cash  and
Marketable  Securities  (a  “Cash/Public Acquisition”),  and  the  fair  market  value  of  one  Share  as  determined  in  accordance  with
Section  1.3  above  would  be  greater  than  the  Warrant  Price  in  effect  on  such  date  immediately  prior  to  such  Cash/Public
Acquisition,  and  Holder  has  not  exercised  this  Warrant  pursuant  to  Section  1.1  above  as  to  all  Shares,  then  this  Warrant  shall
automatically be deemed to be Cashless Exercised pursuant to Section 1.2 above as to all Shares effective immediately prior to and
contingent  upon  the  consummation  of  a  Cash/Public  Acquisition.  In  connection  with  such  Cashless  Exercise,  Holder  shall  be
deemed to have restated each of the representations and warranties in Section 4 of the Warrant as the date thereof and the Company
shall  promptly  notify  the  Holder  of  the  number  of  Shares  (or  such  other  securities)  issued  upon  exercise.  In  the  event  of  a
Cash/Public Acquisition where the fair market value of one Share as determined in accordance with Section 1.3 above would be
less than the Warrant Price in effect immediately prior to such Cash/Public Acquisition, then this Warrant will expire immediately
prior to the consummation of such Cash/Public Acquisition.

(c)

Upon  the  closing  of  any  Acquisition  other  than  a  Cash/Public  Acquisition  defined  above,  the
acquiring, surviving or successor entity shall assume the obligations of this Warrant, and this Warrant shall thereafter be exercisable
for  the  same  securities  and/or  other  property  as  would  have  been  paid  for  the  Shares  issuable  upon  exercise  of  the  unexercised
portion  of  this  Warrant  as  if  such  Shares  were  outstanding  on  and  as  of  the  closing  of  such  Acquisition,  subject  to  further
adjustment from time to time in accordance with the provisions of this Warrant.

(d)

As  used  in  this  Warrant,  “Marketable  Securities”  means  securities  meeting  all  of  the  following
requirements: (i) the  issuer  thereof  is  then  subject  to  the  reporting  requirements of Section 13 or Section 15(d) of the Securities
Exchange  Act  of  1934,  as  amended  (the  “Exchange  Act”),  and  is  then  current  in  its  filing  of  all  required  reports  and  other
information under the Act and the Exchange Act; (ii) the class and series of shares or other security of the issuer that would be
received by Holder in connection with the Acquisition were Holder to exercise this Warrant on or prior to the closing thereof is then
traded in Trading Market, and (iii) following the closing of such Acquisition, Holder would not be restricted from

3

 
 
publicly  re-selling  all  of  the  issuer’s  shares  and/or  other  securities  that  would  be  received  by  Holder  in  such  Acquisition  were
Holder to exercise or convert this Warrant in full on or prior to the closing of such Acquisition, except to the extent that any such
restriction (x) arises solely under federal or state securities laws, rules or regulations, and (y) does not extend beyond six (6) months
from the closing of such Acquisition.

1.7

Number of Shares Granted to Holder. On the Funding Date of each Term Loan Advance, the Company shall
be deemed to have automatically granted to Holder the right to purchase, at an exercise price per share equal to the Warrant Price,
that number of Shares equal to one and three-quarters of one percent (1.75%) of the original principal amount of such Term Loan
Advance divided by the Warrant Price. For purposes of clarification only, if the aggregate original principal amount of the Term
Loan Advances advanced to the Company is $3,000,000, then Holder shall automatically be deemed to have been granted the right
to purchase 18,683 Shares (i.e., 0.0175 multiplied by $3,000,000, then divided by the Warrant Price). Capitalized terms used but
not defined in this Section 1.7 shall have the meanings given to them in the Loan Agreement.

SECTION 2.

ADJUSTMENTS TO THE SHARES AND WARRANT PRICE.

2.1

Stock  Dividends,  Splits,  Etc.  If  the  Company  declares  or  pays  a  dividend  or  distribution  on  the  outstanding
shares of the Class payable in common stock or other securities or property (other than cash), then upon exercise of this Warrant,
for  each  Share  acquired,  Holder  shall  receive,  without  additional  cost  to  Holder,  the  total  number  and  kind  of  securities  and
property  which  Holder  would  have  received  had  Holder  owned  the  Shares  of  record  as  of  the  date  the  dividend  or  distribution
occurred. If the Company subdivides the outstanding shares of the Class by reclassification or otherwise into a greater number of
shares,  the  number  of  Shares  purchasable  hereunder  shall  be  proportionately  increased  and  the  Warrant  Price  shall  be
proportionately decreased. If the outstanding shares of the Class are combined or consolidated, by reclassification or otherwise, into
a lesser number of shares, the Warrant Price shall be proportionately increased and the number of Shares shall be proportionately
decreased.

2.2

Reclassification,  Exchange,  Combinations  or  Substitution.  Upon  any  event  whereby  all  of  the  outstanding
shares  of  the  Class  are  reclassified,  exchanged,  combined,  substituted,  or  replaced  for,  into,  with  or  by  Company  securities  of  a
different class and/or series, then from and after the consummation of such event, this Warrant will be exercisable for the number,
class  and  series  of  Company  securities  that  Holder  would  have  received  had  the  Shares  been  outstanding  on  and  as  of  the
consummation of such event, and subject to further adjustment thereafter from time to time in accordance with the provisions of
this  Warrant.  The  provisions  of  this  Section  2.2  shall  similarly  apply  to  successive  reclassifications,  exchanges,  combinations
substitutions, replacements or other similar events.

2.3

Conversion of Preferred Stock. If the Class is a class and series of the Company’s convertible preferred stock,
in the event that all outstanding shares of the Class are converted, automatically or by action of the holders thereof, into common
stock pursuant to the provisions of the Company’s Certificate of Incorporation, including, without limitation, in connection with the
Company’s initial, underwritten public offering and sale of its common stock pursuant to an effective registration statement under
the Act (the “IPO”), then from and after the date on which

4

 
 
all outstanding shares of the Class have been so converted, this Warrant shall be exercisable for such number of shares of common
stock into which the Shares would have been converted had the Shares been outstanding on the date of such conversion, and the
Warrant Price shall equal the Warrant Price in effect as of immediately prior to such conversion divided by the number of shares of
common stock into which one Share would have been converted, all subject to further adjustment thereafter from time to time in
accordance with the provisions of this Warrant.

2.4

Adjustments  for  Diluting  Issuances.  Without  duplication  of  any  adjustment  otherwise  provided  for  in  this
Section  2,  the  number  of  shares  of  common  stock  issuable  upon  conversion  of  the  Shares  shall  be  subject  to  anti-dilution
adjustment from time to time in the manner set forth in the Company’s Articles or Certificate of Incorporation as if the Shares were
issued and outstanding on and as of the date of any such required adjustment, if any.

2.5

No Fractional Share.  No  fractional  Share  shall  be  issuable  upon  exercise  of  this  Warrant  and  the  number  of
Shares to be issued shall be rounded down to the nearest whole Share. If a fractional Share interest arises upon any exercise of the
Warrant, the Company shall eliminate such fractional Share interest by paying Holder in cash the amount computed by multiplying
the fractional interest by (i) the fair market value (as determined in accordance with Section 1.3 above) of a full Share, less (ii) the
then-effective Warrant Price.

2.6

Notice/Certificate  as  to  Adjustments.  Upon  each  adjustment  of  the  Warrant  Price,  Class  and/or  number  of
Shares,  the  Company,  at  the  Company’s  expense,  shall  notify  Holder  in  writing  within  a  reasonable  time  setting  forth  the
adjustments to the Warrant Price, Class and/or number of Shares and facts upon which such adjustment is based. The Company
shall, upon written request from Holder, furnish Holder with a certificate of its Chief Financial Officer, including computations of
such adjustment and the Warrant Price, Class and number of Shares in effect upon the date of such adjustment.

SECTION 3.

REPRESENTATIONS AND COVENANTS OF THE COMPANY.

3.1

Representations  and  Warranties.  The  Company  represents  and  warrants  to,  and  agrees  with,  the  Holder  as

follows:

The initial Warrant Price referenced on the first page of this Warrant is not greater than the price per
share at which shares of the Class were last sold and issued prior to the Issue Date hereof in an arms-length transaction in which at
least $500,000 of such shares were sold.

(a)

(b)

All Shares which may be issued upon the exercise of this Warrant, and all securities, if any, issuable
upon conversion of the Shares, shall, upon issuance, be duly authorized, validly issued, fully paid and non-assessable, and free of
any liens and encumbrances except for restrictions on transfer provided for herein or under applicable federal and state securities
laws. The Company covenants that it shall at all times cause to be reserved and kept available out of its authorized and unissued
capital stock such number of shares of the Class, common stock and other securities as will be sufficient to permit the exercise in
full of this Warrant and the conversion of the Shares into common stock or such other securities.

5

 
 
material respects, as of the Issue Date.

(c)

The  Company’s  capitalization  table  attached  hereto  as  Schedule  1  is  true  and  complete,  in  all

3.2

Notice of Certain Events. If the Company proposes at any time to:

whether in cash, property, stock, or other securities and whether or not a regular cash dividend;

(a)

declare  any  dividend  or  distribution  upon  the  outstanding  shares  of  the  Class  or  common  stock,

(b)

offer  for  subscription  or  sale  pro  rata  to  the  holders  of  the  outstanding  shares  of  the  Class  any
additional shares of any class or series of the Company’s stock (other than pursuant to contractual pre-emptive rights, including, but
not limited to, in connection with the “Second Tranche Closing” or “Third Tranche Closing,” each as defined in that certain Alpine
Immune Sciences, Inc., Series A Preferred Stock Purchase Agreement dated June 10, 2016);

the outstanding shares of the Class;

(c)

effect any reclassification, exchange, combination, substitution, reorganization or recapitalization of

(d)

(e)

effect an Acquisition or to liquidate, dissolve or wind up; or

effect an IPO;

then, in connection with each such event, the Company shall give Holder:

(1)

at least seven (7) Business Days prior written notice of the date on which a record will be taken for
such dividend, distribution, or subscription rights (and specifying the date on which the holders of outstanding shares of
the Class will be entitled thereto) or for determining rights to vote, if any, in respect of the matters referred to in (a) and
(b) above;

(2)

in  the  case  of  the  matters  referred  to  in  (c)  and  (d)  above  at  least  seven  (7)  Business  Days  prior
written notice of the  date  when  the  same  will  take  place  (and  specifying  the  date on which the holders of outstanding
shares  of  the  Class  will  be  entitled  to  exchange  their  shares  for  the  securities  or  other  property  deliverable  upon  the
occurrence of such event and such reasonable information as Holder may reasonably require regarding the treatment of
this Warrant in connection with such event giving rise to the notice); and

(3)

with respect to the IPO, at least seven (7) Business Days prior written notice of the date on which the

Company proposes to file its registration statement in connection therewith.

Company will also provide information requested by Holder that is reasonably necessary to enable Holder to comply with Holder’s
accounting or reporting requirements.

6

 
 
SECTION 4.

REPRESENTATIONS, WARRANTIES OF THE HOLDER.

The Holder represents and warrants to the Company as follows:

4.1

Purchase for Own Account. This Warrant and the securities to be acquired upon exercise of this Warrant by
Holder are being acquired for investment for Holder’s account, not as a nominee or agent, and not with a view to the public resale
or  distribution  within  the  meaning  of  the  Act.  Holder  also  represents  that  it  has  not  been  formed  for  the  specific  purpose  of
acquiring this Warrant or the Shares.

4.2

Disclosure of Information. Holder is aware of the Company’s business affairs and financial condition and has
received or has had full access to all the information it considers necessary or appropriate to make an informed investment decision
with respect to the acquisition of this Warrant and its underlying securities. Holder further has had an opportunity to ask questions
and  receive  answers  from  the  Company  regarding  the  terms  and  conditions  of  the  offering  of  this  Warrant  and  its  underlying
securities and to obtain additional information (to the extent the Company possessed such information or could acquire it without
unreasonable effort or expense) necessary to verify any information furnished to Holder or to which Holder has access.

4.3

Investment  Experience.  Holder  understands  that  the  purchase  of  this  Warrant  and  its  underlying  securities
involves  substantial  risk.  Holder  has  experience  as  an  investor  in  securities  of  companies  in  the  development  stage  and
acknowledges that Holder can bear the economic risk of such Holder’s investment in this Warrant and its underlying securities and
has such knowledge and experience in financial or business matters that Holder is capable of evaluating the merits and risks of its
investment in this Warrant and its underlying securities and/or has a preexisting personal or business relationship with the Company
and certain of its officers, directors or controlling persons of a nature and duration that enables Holder to be aware of the character,
business acumen and financial circumstances of such persons.

4.4

Accredited  Investor  Status.  Holder  is  an  “accredited  investor”  within  the  meaning  of  Regulation  D

promulgated under the Act.

4.5

The  Act.  Holder  understands  that  this  Warrant  and  the  Shares  issuable  upon  exercise  hereof  have  not  been
registered under the Act in reliance upon a specific exemption therefrom, which exemption depends upon, among other things, the
bona fide nature of the Holder’s investment intent as expressed herein. Holder understands that this Warrant and the Shares issued
upon  any  exercise  hereof  must  be  held  indefinitely  unless  subsequently  registered  under  the  Act  and  qualified  under  applicable
state securities laws, or unless exemption from such registration and qualification are otherwise available. Holder is aware of the
provisions of Rule 144 promulgated under the Act.

4.6

Market  Stand-off  Agreement.  The  Holder  agrees  that  the  Shares  shall  be  subject  to  the  Market  Standoff
provisions in Section 2.10 of that certain Amended and Restated Investor Rights Agreement dated effective as of June 10, 2016, as
may be amended from time to time.

4.7

Voting Agreement. Holder, as a Holder of this Warrant, will not have any voting rights until the exercise of this

Warrant. Upon exercise of this Warrant, the Holder hereby agrees

7

 
 
and covenants to become a party to the Voting Agreement dated January 23, 2015 (the “Voting Agreement”) among the Company
and investors signatories thereto, provided, that, in the event that the Voting Agreement, in effect as of the Issue Date, is amended,
modified or waived in a way that materially adversely affects the obligations or rights of the Holder associated with the Shares in a
different  manner  than  such  amendment,  modification  or  waiver  affects  the  stockholder  parties  thereunder  holding  shares  of  the
same  series  and  class  as  the  Shares,  then  such  amendment,  modification  or  waiver  shall  not  affect  Holder  or  Holder’s  Shares
without Holder’s prior written consent.

5.1

Term and Automatic Conversion Upon Expiration.

SECTION 5.

MISCELLANEOUS.

at any time and from time to time on or before 6:00 PM, Pacific time, on the Expiration Date and shall be void thereafter.

(a)

Term. Subject to the provisions of Section 1.6 above, this Warrant is exercisable in whole or in part

(b)

Automatic Cashless Exercise upon Expiration. In the event that, upon the Expiration Date, the fair
market value of one Share (or other security issuable upon the exercise hereof) as determined in accordance with Section 1.3 above
is greater than the Warrant Price in effect on such date, then this Warrant shall automatically be deemed on and as of such date to be
exercised  pursuant  to  Section  1.2  above  as  to  all  Shares  (or  such  other  securities)  for  which  it  shall  not  previously  have  been
exercised, and the Company shall, within a reasonable time, deliver a certificate representing the Shares (or such other securities)
issued upon such exercise to Holder.

5.2

Legends. The Shares (and the securities issuable, directly or indirectly, upon conversion of the Shares, if any)

shall be imprinted with a legend in substantially the following form:

THE  SHARES  EVIDENCED  BY  THIS  CERTIFICATE  HAVE  NOT  BEEN
REGISTERED  UNDER  THE  SECURITIES  ACT  OF  1933,  AS  AMENDED  (THE
“ACT”),  OR  THE  SECURITIES  LAWS  OF  ANY  STATE  AND,  EXCEPT  AS  SET
FORTH  IN  THAT  CERTAIN  WARRANT  TO  PURCHASE  STOCK  ISSUED  BY  THE
ISSUER TO SILICON VALLEY BANK DATED DECEMBER 16, 2016 MAY NOT BE
OFFERED,  SOLD,  PLEDGED  OR  OTHERWISE  TRANSFERRED  UNLESS  AND
UNTIL  REGISTERED  UNDER  SAID  ACT  AND  LAWS  OR  IN  FORM  AND
SUBSTANCE SATISFACTORY TO THE ISSUER, SUCH OFFER, SALE, PLEDGE OR
OTHER TRANSFER IS EXEMPT FROM SUCH REGISTRATION.

5.3

Compliance  with  Securities  Laws  on  Transfer.  This  Warrant  and  the  Shares  issuable  upon  exercise  of  this
Warrant (and the securities issuable, directly or indirectly, upon conversion of the Shares, if any) may not be transferred or assigned in
whole or in part except in compliance with applicable federal and state securities laws by the transferor and the transferee

8

 
 
(including,  without  limitation,  the  delivery  of  investment  representation  letters  and  legal  opinions  reasonably  satisfactory  to  the
Company, as reasonably requested by the Company). The Company shall not require Holder to provide an opinion of counsel if the
transfer is to SVB Financial Group (Silicon Valley Bank’s parent company) or any other affiliate of Holder, provided that any such
transferee is an “accredited investor” as defined in Regulation D promulgated under the Act. Additionally, the Company shall also not
require an opinion of counsel if there is no material question as to the availability of Rule 144 promulgated under the Act.

5.4

Transfer Procedure.  After  receipt  by  Silicon  Valley  Bank  of  the  executed  Warrant,  Silicon  Valley  Bank  will
transfer all of this Warrant to its parent company, SVB Financial Group. By its acceptance of this Warrant, SVB Financial Group
hereby makes to the Company each of the representations and warranties set forth in Section 4 hereof and agrees to be bound by all
of  the  terms  and  conditions  of  this  Warrant  as  if  the  original  Holder  hereof.  Subject  to  the  provisions  of  Section  5.3  and  upon
providing  the  Company  with  written  notice,  SVB  Financial  Group  and  any  subsequent  Holder  may  transfer  all  or  part  of  this
Warrant or the Shares issuable upon exercise of this Warrant (or the securities issuable directly or indirectly, upon conversion of the
Shares, if any) to any transferee, provided, however, in connection with any such transfer, SVB Financial Group or any subsequent
Holder  will  give  the  Company  notice  of  the  portion  of  the  Warrant  being  transferred  with  the  name,  address  and  taxpayer
identification number of the transferee and Holder will surrender this Warrant to the Company for reissuance to the transferee(s)
(and  Holder  if  applicable);  and  provided  further,  that  any  subsequent  transferee  other  than  SVB  Financial  Group  shall  agree  in
writing with the Company to be bound by all of the terms and conditions of this Warrant. Notwithstanding any contrary provision
herein,  at  all  times  prior  to  the  IPO,  Holder  may  not,  without  the  Company’s  prior  written  consent,  transfer  this  Warrant  or  any
portion hereof, or any Shares issued upon any exercise hereof, or any shares or other securities issued upon any conversion of any
Shares  issued  upon  any  exercise  hereof,  to  any  person  or  entity  who  directly  competes  with  the  Company,  except  in  connection
with an Acquisition of the Company by such a direct competitor.

5.5

Notices. All notices and other communications hereunder from the Company to the Holder, or vice versa, shall
be deemed delivered and effective (i) when given personally, (ii) on the third (3rd) Business Day after being mailed by first-class
registered or certified  mail,  postage  prepaid,  (iii)  upon  actual  receipt  if  given by facsimile or electronic mail and such receipt is
confirmed in writing by the recipient, or (iv) on the first Business Day following delivery to a reliable overnight courier service,
courier  fee  prepaid,  in  any  case  at  such  address  as  may  have  been  furnished  to  the  Company  or  Holder,  as  the  case  may  be,  in
writing  by  the  Company  or  such  Holder  from  time  to  time  in  accordance  with  the  provisions  of  this  Section  5.5.  All  notices  to
Holder  shall  be  addressed  as  follows  until  the  Company  receives  notice  of  a  change  of  address  in  connection  with  a  transfer  or
otherwise:

SVB Financial Group
Attn: Treasury Department
3003 Tasman Drive, HC 215
Santa Clara, CA 95054
Telephone: (408) 654-7400
Facsimile: (408) 988-8317
Email: derivatives@svb.com

9

 
 
Notice to the Company shall be addressed as follows until Holder receives notice of a change in address:

Alpine Immune Sciences, Inc.
Attn: Mitchell Gold, Chief Executive Officer
201 Elliott Ave West, Suite 230
Seattle, Washington 98101
Telephone: (206) 788-4545
Facsimile:
Email: mgold@alpinebio.com

With a copy to (which shall not constitute notice):

Ascent Law Partners, LLP
Attn: Van Katzman
719 Second Ave., Ste. 1150
Seattle, WA 98104
Email: vkatzman@ascentllp.com

5.6

Waiver. This Warrant and any term hereof may be changed, waived, discharged or terminated (either generally
or in a particular instance and either retroactively or prospectively) only by an instrument in writing signed by the party against
which enforcement of such change, waiver, discharge or termination is sought.

5.7

Attorney’s Fees. In the event of any dispute between the parties concerning the terms and provisions of this
Warrant,  the  party  prevailing  in  such  dispute  shall  be  entitled  to  collect  from  the  other  party  all  costs  incurred  in  such  dispute,
including reasonable attorneys’ fees.

5.8

Counterparts;  Facsimile/Electronic  Signatures.  This  Warrant  may  be  executed  in  counterparts,  all  of  which
together shall constitute one and the same agreement. Any signature page delivered electronically or by facsimile shall be binding
to  the  same  extent  as  an  original  signature  page  with  regards  to  any  agreement  subject  to  the  terms  hereof  or  any  amendment
thereto.

5.9

Governing Law. This Warrant shall be governed by and construed in accordance with the laws of the State of

California, without giving effect to its principles regarding conflicts of law.

5.10

Headings. The headings in this Warrant are for purposes of reference only and shall not limit or otherwise

affect the meaning of any provision of this Warrant.

5.11
Bank is closed.

Business Days. “Business Day” is any day that is not a Saturday, Sunday or a day on which Silicon Valley

[Remainder of page left blank intentionally]
[Signature page follows]

10

 
 
 
 
IN  WITNESS  WHEREOF.  the  parties  have  caused  this  Warrant  to  Purchase  Stock  to  be  executed  by  their  duly

authorized representatives effective as of the Issue Date written above.

“COMPANY”

ALPINE IMMUNE SCIENCES. INC.

By:  /s/ Mitchell H. Gold, MD

 Name: Mitchell H. Gold, MD
 Title: Executive Chairman and CEO

“HOLDER”

SILICON VALLEY BANK

By:  /s/ Jackie Spencer

 Name: Jackie Spencer
 Title: Director

[SIGNATURE PAGE TO WARRANT TO PURCHASE STOCK]

 
 
 
  
 
  
 
 
 
 
 
  
 
  
 
 
 
 
 
APPENDIX 1

NOTICE OF EXERCISE

1.

The  undersigned  Holder  hereby  exercises  its  right  purchase  ____________  shares  of  the  Common/Series
_______Preferred [circle one] Stock of ALPINE IMMUNE SCIENCES, INC. (the “Company”) in accordance with the attached
Warrant To Purchase Stock, and tenders payment of the aggregate Warrant Price for such shares as follows:

[   ]

[   ]

[   ]

[   ]

2.

check in the amount of $________ payable to order of the Company enclosed herewith

Wire transfer of immediately available funds to the Company’s account

Cashless Exercise pursuant to Section 1.2 of the Warrant

Other [Describe]

Please issue a certificate or certificates representing the Shares in the name specified below:

Holder’s Name

(Address)

3.

By its execution below and for the benefit of the Company, Holder hereby restates each of the representations

and warranties in Section 4 of the Warrant to Purchase Stock as of the date hereof.

HOLDER:

By:

Name:

Title:

(Date):

[Appendix 1]

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SCHEDULE 1

Company Capitalization Table

See attached

[Schedule 1]

 
 
 
 
CAPITALIZATION TABLE
(as of November 1, 2016)

Total Authorized: 68,581,852

Common Stock (authorized: 46,500,000)

Name

Shares of
Common
Stock

Price Per
Share

Total Investment

% of
Series

% Fully
Diluted

Various Common Stock Holders

1,225,000

Various.

$             1,000.00

100.00%

10.15% 

Common Stock Warrants*

Various Common Stock Warrant Holders (unexercised)

Name

Shares of
Common
Stock

1,225,000

Exercise
Price Per
Share

$ 0.05

% Fully Diluted

0.21% 

Series Seed Preferred Stock (authorized: 5,000,000)

Name

Shares of
Series
Seed

Price Per
Share

Total Investment

% of
Series

% Fully
Diluted

Various Series Seed Holders

5,000,000

$ 0.250

$       1,250,000.00

100.00%

41.42% 

Series A-1 Preferred Stock (authorized: 14,590,748)

Name

Shares of
Series
A-1

Price Per
Share

Total Investment

% of
Series

% Fully
Diluted

Various Series A-1 Holders

3,677,343

$ 2.810

$    10,333,333.83

100.00%

30.46% 

Amended and Restated 2015 Stock Option Plan

Shares

Authorized Shares Under Plan

Total Options Outstanding/Committed

Total Shares Issued Against the Plan

Total Warrants Outstanding/Committed Against Plan

Options Available for Future Issuance

Total Shares Outstanding

Total Fully Diluted

* Counted against the 2015 Stock Option Plan.

2,394,935 

1,054,400 

225,000 

25,000 

1,090,535 

9,902,343  

12,072,278  

14

% Fully
Diluted

19.84% 

8.73% 

1.86% 

0.21% 

10.90% 

82.03% 

100.00% 

 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES
ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT
WITH  A  VIEW  TO,  OR  IN  CONNECTION  WITH,  THE  SALE  OR  DISTRIBUTION  THEREOF.    NO  SUCH  SALE  OR
DISTRIBUTION  MAY  BE  EFFECTED  WITHOUT  AN  EFFECTIVE  REGISTRATION  STATEMENT  RELATED  THERETO
OR AN OPINION OF COUNSEL IN A FORM SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT
REQUIRED UNDER THE SECURITIES ACT.

Warrant No. [                   ]
Date of Issuance: April 12, 2017
Vesting Commencement Date: March 29, 2017

Number of Shares: [                   ]
(subject to adjustment)

Exhibit 4.6

ALPINE IMMUNE SCIENCES, INC.

Common Stock Purchase Warrant

Alpine  Immune  Sciences,  Inc.,  a  Delaware  corporation  (the  “Company”),  for  value  received,  hereby  certifies  that
[                   ], an individual, or her registered assigns (the “Registered Holder”), is entitled, subject to the terms set forth below, to
purchase from the Company, at any time after the date hereof and on or before the Expiration Date (as defined in Section 5 below),
up to [                   ] ([                   ]) shares (subject to the vesting provisions of Section 1(a) below or as adjusted from time to time
pursuant  to  the  provisions  of  this  Warrant)  of  Common  Stock  of  the  Company,  at  a  purchase  price  per  share  equal  to  U.S.
[                   ] (U.S. $[                   ]).  The shares of Common Stock purchasable upon exercise of this Warrant and the purchase
price per share, as adjusted from time to time pursuant to the provisions of this Warrant, are sometimes hereinafter referred to as the
“Warrant Stock” and the “Purchase Price,” respectively.

1.

Exercise.

(a)

Manner  of  Exercise;  Vesting.    The  vested  portion  of  this  Warrant  may  be  exercised  by  the
Registered Holder, in whole or in part, by surrendering this Warrant, with the purchase form appended hereto as Exhibit A duly
executed  by  such  Registered  Holder  or  by  such  Registered  Holder’s  duly  authorized  attorney,  at  the  principal  office  of  the
Company, or at such other office or agency as the Company may designate, accompanied by payment in full of the Purchase Price
payable in respect of the number of shares of Warrant Stock purchased upon such exercise.  The Warrant Stock shall initially be
unvested  and  shall  vest  and  become  exercisable  as  follows:  one  forty-eighth  (1/48th)  of  the  shares  shall  vest  on  each  monthly
anniversary of the Vesting Commencement Date set forth above such that all shares shall be vested and exercisable upon the four
(4)-year anniversary of the Vesting Commencement Date; provided, however, that such vesting shall terminate in the event that that
certain Engagement Letter dated [                   ] by and between the Company and [                   ] is terminated for any reason.

 
 
 
 
 
 
(b)

Effective  Time  of  Exercise.  Each  exercise  of  this  Warrant  shall  be  deemed  to  have  been  effected
immediately  prior  to  the  close  of  business  on  the  day  on  which  this  Warrant  shall  have  been  surrendered  to  the  Company  as
provided in Section 1(a) above.  At such time, the person or persons in whose name or names any certificates for Warrant Stock
shall be issuable upon such exercise as provided in Section 1(d) below shall be deemed to have become the holder or holders of
record of the Warrant Stock represented by such certificates.

(c)

Net Issue Exercise.

In  lieu  of  exercising  this  Warrant  in  the  manner  provided  above  in  Section  1(a),  the
Registered  Holder  may  elect  to  receive  shares  equal  to  the  value  of  this  Warrant  (or  the  portion  thereof  being  canceled)  by
surrender of this Warrant at the principal office of the Company together with notice of such election in which event the Company
shall issue to holder a number of shares of Common Stock computed using the following formula:

(i)

X =  Y (A - B)
        A

Where

X =

The number of shares of Warrant Stock to be issued to the Registered Holder.

Y =

A =

B =

The number of shares of Warrant Stock purchasable under this Warrant (at the date of such calculation).

The fair market value of one share of Warrant Stock (at the date of such calculation).

The Purchase Price (as adjusted to the date of such calculation).

on the date of calculation shall mean with respect to each share of Warrant Stock:

(ii)

For purposes of this Section 1(c), the fair market value of one share of Warrant Stock

if the exercise is in connection with an initial public offering of the Company’s
Common Stock, and if the Company’s Registration Statement relating to such public offering has been declared effective by the
Securities and Exchange Commission, then the fair market value per share of Common Stock shall be the product of (1) the initial
“Price to Public” specified in the final prospectus with respect to the offering and (2) the number of shares of Common Stock into
which each share of Warrant Stock is convertible at the date of calculation; or

(A)

if  the  exercise  is  other  than  in  connection  with  an  initial  public  offering  of  the
Company’s Common Stock, the fair market value shall be at the highest price per share which the Company could obtain on the
date of calculation from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company,
from authorized but unissued shares, as determined in good faith by the Company’s board of directors (the “Board of Directors”),
unless the Company is at such time subject to an acquisition as described in Section 5(b)

(B)

-2-

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
below, in which case the fair market value per share of Common Stock shall be deemed to be the value of the consideration per
share received by the holders of such stock pursuant to such acquisition.

Delivery to Holder.  As soon as practicable after the exercise of this Warrant in whole or in part, and
in any event within thirty (30) days thereafter, the Company at its expense will cause to be issued in the name of, and delivered to,
the Registered Holder, or as such Holder (upon payment by such Holder of any applicable transfer taxes) may direct:

(d)

Registered Holder shall be entitled, and

(i)

a  certificate  or  certificates  for  the  number  of  shares  of  Warrant  Stock  to  which  such

in case such exercise is in part only, a new warrant or warrants (dated the date hereof)
of like tenor, calling in the aggregate on the face or faces thereof for the number of shares of Warrant Stock equal (without giving
effect  to  any  adjustment  therein)  to  the  number  of  such  shares  called  for  on  the  face  of  this  Warrant  minus  the  number  of  such
shares purchased by the Registered Holder upon such exercise as provided in Section 1(a) above.

(ii)

2.

Adjustments.

(a)

Stock  Splits  and  Dividends.    If  outstanding  shares  of  the  Company’s  Common  Stock  shall  be
subdivided  or  combined  into  a  greater  or  smaller  number  of  shares  or  a  dividend  in  Common  Stock  shall  be  paid  in  respect  of
Common  Stock,  the  Purchase  Price  in  effect  immediately  prior  to  such  subdivision  or  at  the  record  date  of  such  dividend  shall
simultaneously  with  the  effectiveness  of  such  subdivision  or  immediately  after  the  record  date  of  such  dividend  be  adjusted  by
multiplying  the  Purchase  Price  in  effect  immediately  prior  to  such  subdivision,  combination  or  dividend  by  a  fraction,  the
numerator  of  which  shall  be  the  number  of  shares  of  Common  Stock  outstanding  before  giving  effect  to  such  subdivision,
combination  or  dividend  and  the  denominator  shall  be  the  number  of  shares  of  Common  Stock  outstanding  immediately  after
giving effect to such subdivision, combination or dividend.  When any adjustment is required to be made in the Purchase Price, the
number of shares of Warrant Stock purchasable upon the exercise of this Warrant shall be changed to the number determined by
dividing  (i)  an  amount  equal  to  the  number  of  shares  issuable  upon  the  exercise  of  this  Warrant  immediately  prior  to  such
adjustment,  multiplied  by  the  Purchase  Price  in  effect  immediately  prior  to  such  adjustment,  by  (ii)  the  Purchase  Price  in  effect
immediately after such adjustment.

(b)

Reclassification, Etc.  In case of any reclassification or change of the outstanding securities of the
Company  or  of  any  reorganization  of  the  Company  (or  any  other  corporation  the  stock  or  securities  of  which  are  at  the  time
receivable upon the exercise of this Warrant) or any similar corporate reorganization on or after the date hereof, then and in each
such case the holder of this Warrant, upon the exercise hereof at any time after the consummation of such reclassification, change,
reorganization, merger or conveyance, shall be entitled to receive, in lieu of the stock or other securities and property receivable
upon the exercise hereof prior to such consummation, the stock or other securities or property to which such holder would have
been

-3-

 
 
 
entitled  upon  such  consummation  if  such  holder  had  exercised  this  Warrant  immediately  prior  thereto,  all  subject  to  further
adjustment as provided in Section 2(a); and in each such case, the terms of this Section 2 shall be applicable to the shares of stock
or other securities properly receivable upon the exercise of this Warrant after such consummation.

(c)

Adjustment Certificate.  When any adjustment is required to be made in the Warrant Stock or the
Purchase Price pursuant to this Section 2, the Company shall promptly mail to the Registered Holder a certificate setting forth (i) a
brief statement of the facts requiring such adjustment, (ii) the Purchase Price after such adjustment and (iii) the kind and amount of
stock or other securities or property into which this Warrant shall be exercisable after such adjustment.

3.

Transfers.

(a)

Unregistered Security.  Each holder of this Warrant acknowledges that this Warrant and the Warrant
Stock  have  not  been  registered  under  the  Securities  Act,  and  agrees  not  to  sell,  pledge,  distribute,  offer  for  sale,  transfer  or
otherwise  dispose  of  this  Warrant  or  any  Warrant  Stock  issued  upon  its  exercise  in  the  absence  of  (i)  an  effective  registration
statement under the Act as to this Warrant or such Warrant Stock and registration or qualification of this Warrant or such Warrant
Stock  under  any  applicable  U.S.  federal  or  state  securities  law  then  in  effect  or  (ii)  an  opinion  of  counsel,  satisfactory  to  the
Company, that such registration and qualification are not required.  Each certificate or other instrument for Warrant Stock issued
upon the exercise of this Warrant shall bear a legend substantially to the foregoing effect.

(b)

Transferability.    Subject  to  the  provisions  of  Section  3(a)  hereof  this  Warrant  and  all  rights
hereunder are transferable, in whole or in part, upon surrender of the Warrant with a properly executed assignment (in the form of
Exhibit B hereto) at the principal office of the Company. Notwithstanding anything else in this Warrant, Holder may not assign or
transfer this Warrant without the Company’s prior written consent.

(c)

Warrant Register. The Company will maintain a register containing the names and addresses of the
Registered Holders of this Warrant.  Until any transfer of this Warrant is made in the warrant register, the Company may treat the
Registered Holder of this Warrant as the absolute owner hereof for all purposes; provided, however, that if this Warrant is properly
assigned  in  blank,  the  Company  may  (but  shall  not  be  required  to)  treat  the  bearer  hereof  as  the  absolute  owner  hereof  for  all
purposes,  notwithstanding  any  notice  to  the  contrary.   Any  Registered  Holder  may  change  such  Registered  Holder’s  address  as
shown on the warrant register by written notice to the Company requesting such change.

4.

No Impairment. The Company will not, by amendment of its charter or through reorganization, consolidation,
merger, dissolution, sale of assets or any other voluntary action, avoid or seek to avoid the observance or performance of any of the
terms of this Warrant, but will at all times in good faith assist in the carrying out of all such terms and in the taking of all such
action as may be necessary or appropriate in order to protect the rights of the holder of this Warrant against impairment.

-4-

 
 
 
5.

Termination. This Warrant (and the right to purchase securities upon exercise hereof) shall terminate upon the
earliest to occur of the following (the “Expiration Date”): (a) the seventh (7th) anniversary of the Date of Issuance set forth above,
(b) the sale of all or substantially all of the Company’s assets, or any stock sale, merger, or consolidation of the Company with or
into another corporation or business entity other than a stock sale, merger, or consolidation in which the holders of more than fifty
percent (50%) of the shares of capital stock of the Company outstanding immediately prior to such transaction continue to hold
(either  by  the  voting  securities  remaining  outstanding  or  by  their  being  converted  into  voting  securities  of  the  surviving  entity)
more  than  fifty  percent  (50%)  of  the  total  voting  power  represented  by  the  voting  securities  of  the  Company,  or  such  surviving
entity, outstanding immediately after such transaction; provided, however, that this Section 5(b) shall not apply to a merger effected
exclusively for the purpose of changing the domicile of the Company, or in the event of a bona fide equity financing transaction, or
(c) the closing of a firm commitment underwritten public offering pursuant to a registration statement under the Securities Act.

6.

Notices of Certain Transactions.  In case:

(a)

the Company shall take a record of the holders of its Common Stock (or other stock or securities at
the time deliverable upon the exercise of this Warrant) for the purpose of entitling or enabling them to receive any dividend or other
distribution, or to receive any right to subscribe for or purchase any shares of stock of any class or any other securities, or to receive
any other right, to subscribe for or purchase any shares of stock of any class or any other securities, or to receive any other right, or

(b)

of  any  capital  reorganization  of  the  Company,  any  reclassification  of  the  capital  stock  of  the
Company,  any  consolidation  or  merger  of  the  Company,  any  consolidation  or  merger  of  the  Company  with  or  into  another
corporation  (other  than  a  consolidation  or  merger  in  which  the  Company  is  the  surviving  entity),  or  any  transfer  of  all  or
substantially all of the assets of the Company, or

(c)

of the voluntary or involuntary dissolution, liquidation or winding-up of the Company, then, and in
each such case, the Company will mail or cause to be mailed to the Registered Holder of this Warrant a notice specifying, as the
case may be, (i) the date on which a record is to be taken for the purpose of such dividend, distribution or right, and stating the
amount and character of such dividend, distribution or right, or (ii) the effective date on which such reorganization, reclassification,
consolidation,  merger,  transfer,  dissolution,  liquidation  or  winding-up  is  to  take  place,  and  the  time,  if  any  is  to  be  fixed,  as  of
which the holders of record of Common Stock (or such other stock or securities at the time deliverable upon such reorganization,
reclassification, consolidation, merger, transfer, dissolution, liquidation or winding-up) are to be determined.  Such notice shall be
mailed at least ten (10) days prior to the record date or effective date for the event specified in such notice.

7.

Reservation of Stock.  The Company will at all times reserve and keep available, solely for the issuance and

delivery upon the exercise of this Warrant, such shares of Warrant Stock

-5-

 
 
 
and other stock, securities and property, as from time to time shall be issuable upon the exercise of this Warrant.

8.

Exchange of Warrants.    Upon  the  surrender  by  the  Registered  Holder  of  any  Warrant  or  Warrants,  properly
endorsed, to the Company at the principal office of the Company, the Company will, subject to the provisions of Section 3 hereof,
issue and deliver to or upon the order of such Holder, at the Company’s expense, a new Warrant or Warrants of like tenor, in the
name of such Registered Holder or as such Registered Holder (upon payment by such Registered Holder of any applicable transfer
taxes) may direct, calling in the aggregate on the face or faces thereof for the number of shares of Common Stock called for on the
face or faces of the Warrant or Warrants so surrendered.

9.

Replacement of Warrants.  Upon receipt of evidence reasonably satisfactory to the Company of the loss, theft,
destruction  or  mutilation  of  this  Warrant  and  (in  the  case  of  loss,  theft  or  destruction)  upon  delivery  of  an  indemnity  agreement
reasonably satisfactory to the Company, or (in the case of mutilation) upon surrender and cancellation of this Warrant, the Company
will issue, in lieu thereof, a new Warrant of like tenor.

10.

Notices.  Any notice required or permitted by this Warrant shall be in writing and shall be deemed sufficient
upon receipt, when delivered personally or by courier, overnight delivery service or confirmed facsimile, or forty-eight (48) hours
after  being  deposited  in  the  regular  mail  as  certified  or  registered  mail  (airmail  if  sent  internationally)  with  postage  prepaid,
addressed (a) if to the Registered Holder, to the address of the Registered Holder most recently furnished in writing to the Company
and (b) if to the Company, to the address set forth below or subsequently modified by written notice to the Registered Holder.

11.

No Rights as Stockholder.  Until the exercise of this Warrant, the Registered Holder of this Warrant shall not

have or exercise any rights by virtue hereof as a stockholder of the Company.

12.

No Fractional Shares.  No fractional shares of Common Stock or Warrant Stock will be issued in connection
with any exercise hereunder.  In lieu of any fractional shares which would otherwise be issuable, the Company shall pay cash equal
to  the  product  of  such  fraction  multiplied  by  the  fair  market  value  of  one  share  of  Common  Stock  on  the  date  of  exercise,  as
determined in good faith by the Board of Directors.

13.

Amendment  or  Waiver.    Any  term  of  this  Warrant  may  be  amended  or  waived  only  by  an  instrument  in

writing signed by the party against which enforcement of the amendment or waiver is sought.

14.

Headings.   The  headings  in  this  Warrant  are  for  purposes  of  reference  only  and  shall  not  limit  or  otherwise

affect the meaning of any provision of this Warrant.

-6-

 
 
 
15.

Governing Law.  This Warrant shall be governed, construed and interpreted in accordance with the laws of the

State of Washington, without giving effect to principles of conflicts of law.

16.

Issuance of Shares.  The Company covenants that the Warrant Stock, when issued pursuant to exercise of this
Warrant,  will  be  duly  and  validly  issued,  fully-paid  and  non-assessable,  and  free  from  all  liens  and  changes  with  respect  to  the
issuance thereof.

17.

Additional  Agreements.    Registered  Holder  hereby  agrees,  upon  the  exercise  of  this  Warrant  and  as  a
condition  to  the  Company’s  obligation  to  issue  any  Warrant  Stock  upon  the  exercise  of  this  Warrant,  to  become  a  party  to  any
shareholder  agreements,  voting  agreements,  and/or  right  of  first  refusal  agreements  of  the  Company  to  which  similarly  situated
shareholders are parties which may contain, among other things, a market standoff provision.

(signature page follows)

-7-

 
 
 
IN WITNESS WHEREOF, this Common Stock Purchase Warrant (CSW-004) is hereby executed effective as of the Date

of Issuance set forth above.

COMPANY:

ALPINE IMMUNE SCIENCES, INC.,
a Delaware corporation

By:
Name:
Its:

Address:

Dr. Mitchell H. Gold
Executive Chairman

201 Elliott Avenue West, Ste. 230
Seattle, WA 98119

ACCEPTED AND AGREED:

[                   ],
an individual

By:
Name:

Address:

[                   ]

[                   ]
[                   ]
[                   ]

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EXHIBIT 1

PURCHASE FORM

To:

Alpine Immune Sciences, Inc.             Dated: _______________

The undersigned, pursuant to the provisions set forth in the attached Warrant No. CSW-004, hereby irrevocably elects to
purchase  ___________________shares  of  the  Common  Stock  covered  by  such  Warrant  and  herewith  makes  payment  of
$___________, representing the full purchase price for such shares at the price per share provided for in such Warrant.

Signature:

Name (print):

Title (if applicable)

Company (if applicable):

 
 
 
 
 
 
 
 
EXHIBIT 2

ASSIGNMENT FORM

FOR VALUE RECEIVED, _____________________________________________ hereby sells, assigns and transfers all
of the rights of the undersigned under the attached Warrant with respect to the number of shares of Common Stock covered thereby
set forth below, to:

Name of Assignee

  Mailing Address and E-mail Address

No. of Shares

Dated:

Signature:             

Printed Name:

Witness:

Printed Name:

-2-

 
 
 
 
   
   
 
   
   
 
   
   
 
   
   
 
   
   
 
 
 
 
 
 
 
LOAN AND SECURITY AGREEMENT

Exhibit 10.26

THIS LOAN AND SECURITY AGREEMENT (this “Agreement”) dated as of December 16, 2016 (the “Effective Date”) between
SILICON  VALLEY  BANK,  a  California  corporation  (“Bank”),  and  ALPINE  IMMUNE  SCIENCES,  INC.,  a  Delaware  corporation
(“Borrower”), provides the terms on which Bank shall lend to Borrower and Borrower shall repay Bank.  The parties agree as follows:

1.

ACCOUNTING AND OTHER TERMS

Accounting terms not defined in this Agreement shall be construed following GAAP. Calculations and determinations must be made
following GAAP.  Capitalized terms not otherwise defined in this Agreement shall have the meanings set forth in Section 13.  All other terms
contained  in  this  Agreement,  unless  otherwise  indicated,  shall  have  the  meaning  provided  by  the  Code  to  the  extent  such  terms  are  defined
therein.

2.

LOAN AND TERMS OF PAYMENT

all Credit Extensions and accrued and unpaid interest thereon as and when due in accordance with this Agreement.

2.1

Promise to Pay.  Borrower hereby unconditionally promises to pay Bank the outstanding principal amount of

2.1.1

Term Loan Advances.

(a)

Availability.    Subject  to  the  terms  and  conditions  of  this  Agreement,  Borrower  may
request that Bank make certain term loan advances (each, a “Term Loan Advance” and, collectively, the “Term Loan Advances”) in two (2)
tranches  in  an  aggregate  original  principal  amount  not  to  exceed  the  Term  Loan  Commitment,  as  follows:  (i)  the  first  (1st)  tranche  shall  be
available to Borrower from the Effective Date through the Tranche One Commitment Termination Date in multiple advances in the aggregate
original principal amount not to exceed Four Million Dollars ($4,000,000) (each, a “Tranche One Term Loan Advance”), and (ii) provided
that  Borrower  has  achieved  the  Tranche  Two  Milestone,  the  second  (2nd)  tranche  shall  be  available  to  Borrower  from  the  date  on  which
Borrower achieves the Tranche Two Milestone through the Tranche Two Commitment Termination Date in multiple advances in the aggregate
original principal amount not to exceed One Million Dollars ($1,000,000) (each, a “Tranche Two Term Loan Advance”).  Each Term Loan
Advance, other than the final Term Loan Advance, must be in an amount of not less than Five Hundred Thousand Dollars ($500,000).  After
repayment, no Term Loan Advance may be re-borrowed.

(b)

Repayment.

Interest  Only  Payments.    For  each  Term  Loan  Advance,  Borrower  shall
make monthly payments of accrued interest-only commencing on the first (1st) calendar day of the first (1st) month following the month in
which the Funding Date occurs with respect to such Term Loan Advance and continuing thereafter during the Interest-Only Period on the first
(1st) calendar day of each successive month.

(i)

Principal  and  Interest  Payments.    For  each  Term  Loan  Advance,
commencing on July 1, 2018 (the “Conversion Date”) and continuing on the first (1st) calendar day of each month thereafter, Borrower shall
make thirty (30) consecutive equal monthly payments of principal each in an amount which would fully amortize the outstanding Term Loan

(ii)

 
 
 
 
Advances,  as  of  the  Conversion  Date,  over  the  Term  Loan  Repayment  Period,  plus  accrued  interest.   All  unpaid  principal  and  accrued  and
unpaid interest on the Term Loan Advances is due and payable in full on the Term Loan Maturity Date.

(c)

Prepayment.

Mandatory  Prepayment  Upon  an  Acceleration.    If  the  Term  Loan
Advances are accelerated following the occurrence of an Event of Default, Borrower shall immediately pay to Bank an amount equal to the
sum  of  (A)  all  accrued  and  unpaid  interest  with  respect  to  the  Term  Loan  Advances  through  the  date  the  prepayment  is  made,  plus  (B)  all
outstanding  principal  with  respect  to  the  Term  Loan  Advances,  plus  (C)  the  Final  Payment,  plus  (D)  all  other  sums,  if  any,  that  shall  have
become due and payable hereunder in connection with the Term Loan Advances, including interest at the Default Rate with respect to any past
due amounts.

(i)

Permitted Prepayment.    Borrower  shall  have  the  option  to  prepay  all  or
any portion of the Term Loan Advances advanced by Bank under this Agreement, provided Borrower (A) delivers written notice to Bank of its
election to prepay the Term Loan Advances at least thirty (30) days prior to such prepayment, and (B) pays, on the date of such prepayment (1)
all accrued and unpaid interest with respect to such Term Loan Advances being prepaid through the date the prepayment is made, plus (2) all
unpaid principal with respect to such Term Loan Advances being prepaid, plus (3) the Final Payment, plus (4) all other sums, if any, that shall
have become due and payable hereunder in connection with the Term Loan Advances, including interest at the Default Rate with respect to any
past due amounts.

(ii)

2.2

Payment of Interest on the Credit Extensions.

Interest  Rate.    Subject  to  Section  2.2(b),  the  principal  amount  outstanding  for  each  Term  Loan
Advance shall accrue interest at a floating per annum rate equal to the Prime Rate minus one and three-quarters of one percent (1.75%), which
interest shall be payable monthly in accordance with Section 2.2(d).

(a)

(b)

Default Rate. Immediately upon the occurrence and during the continuance of an Event of Default,
Obligations shall bear interest at a rate per annum which is four percent (4.0%) above the rate that is otherwise applicable thereto (the “Default
Rate”).  Fees and expenses which are required to be paid by Borrower pursuant to the Loan Documents (including, without limitation, Bank
Expenses) but are not paid when due shall bear interest until paid at a rate equal to the highest rate applicable to the Obligations.  Payment or
acceptance of the increased interest rate provided in this Section 2.2(b) is not a permitted alternative to timely payment and shall not constitute
a waiver of any Event of Default or otherwise prejudice or limit any rights or remedies of Bank.

to the Prime Rate shall be effective on the effective date of any change to the Prime Rate and to the extent of any such change.

(c)

Adjustment to Interest Rate. Changes to the interest rate of any Credit Extension based on changes

(d)

Payment; Interest Computation.  Interest is payable monthly on the first (1st) calendar day of each
month and shall be computed on the basis of a three hundred sixty (360)-day year for the actual number of days elapsed. In computing interest,
(i) all payments received after 12:00 p.m. Pacific time on any day shall be deemed received at the opening of business on the next Business
Day, and (ii) the date of the making of any Credit Extension shall be included and the date of payment shall be excluded; provided, however,
that if any Credit Extension is repaid on the same day on which it is made, such day shall be included in computing interest on such Credit
Extension.

-2-

 
 
2.3

Fees. Borrower shall pay to Bank:

Good Faith Deposit.  Borrower has paid to Bank a deposit of Fifteen Thousand Dollars ($15,000)
(the “Good Faith Deposit”) to initiate Bank’s due diligence review process. Any portion of the Good Faith Deposit not utilized to pay Bank
Expenses on the Effective Date will be deposited into Borrower’s Designated Deposit Account;

(a)

Final Payment.  The Final Payment due on the earlier of (i) the Term Loan Maturity Date, (ii) the
final payment date of each Term Loan Advance, or (iii) at the time of a prepayment for those amounts being prepaid pursuant to the terms of
Sections 2.1.1(c)(i) and 2.1.1(c)(ii);

(b)

Bank  Expenses.    All  Bank  Expenses  (including  reasonable  attorneys’  fees  and  expenses  for
documentation and negotiation of this Agreement) incurred through and after the Effective Date, when due (or, if there is no stated due date,
upon demand by Bank).  Upon request of Borrower, Bank shall provide its standard closing invoice for documentation of this Agreement on the
Effective Date.

(c)

(d)

Fees Fully Earned.  Unless otherwise provided in this Agreement or in a separate writing by Bank,
Borrower shall not be entitled to any credit, rebate, or repayment of any fees earned by Bank pursuant to this Agreement notwithstanding any
termination of this Agreement or the suspension or termination of Bank’s obligation to make loans and advances hereunder.  Bank may deduct
amounts owing by Borrower under the clauses of this Section 2.3 pursuant to the terms of Section 2.4(c).  Bank shall provide Borrower written
notice of deductions made from the Designated Deposit Account pursuant to the terms of the clauses of this Section 2.3.

2.4

Payments; Application of Payments; Debit of Accounts.

(a)

All  payments  to  be  made  by  Borrower  under  any  Loan  Document  shall  be  made  in  immediately
available funds in Dollars, without setoff or counterclaim, before 12:00 p.m. Pacific time on the date when due.  Payments of principal and/or
interest received after 12:00 p.m. Pacific time are considered received at the opening of business on the next Business Day.  When a payment is
due on a day that is not a Business Day, the payment shall be due the next Business Day, and additional fees or interest, as applicable, shall
continue to accrue until paid.

Bank has the exclusive right to determine the order and manner in which all payments with respect
to the Obligations may be applied.  Borrower shall have no right to specify the order or the accounts to which Bank shall allocate or apply any
payments  required  to  be  made  by  Borrower  to  Bank  or  otherwise  received  by  Bank  under  this  Agreement  when  any  such  allocation  or
application is not specified elsewhere in this Agreement.

(b)

principal and interest payments or any other amounts Borrower owes Bank when due.  These debits shall not constitute a set-off.

(c)

Bank may debit any of Borrower’s deposit accounts, including the Designated Deposit Account, for

2.5

Withholding.  Payments received by Bank from Borrower under this Agreement will be made free and clear
of and without deduction for any and all present or future taxes, levies, imposts, duties, deductions, withholdings, assessments, fees or other
charges  imposed  by  any  Governmental  Authority  (including  any  interest,  additions  to  tax  or  penalties  applicable  thereto).    Specifically,
however,  if  at  any  time  any  Governmental  Authority,  applicable  law,  regulation  or  international  agreement  requires  Borrower  to  make  any
withholding  or  deduction  from  any  such  payment  or  other  sum  payable  hereunder  to  Bank,  Borrower  hereby  covenants  and  agrees  that  the
amount due from

-3-

 
 
Borrower  with  respect  to  such  payment  or  other  sum  payable  hereunder  will  be  increased  to  the  extent  necessary  to  ensure  that,  after  the
making of such required withholding or deduction, Bank receives a net sum equal to the sum which it would have received had no withholding
or deduction been required, and Borrower shall pay the full amount withheld or deducted to the relevant Governmental Authority.  Borrower
will,  upon  request,  furnish  Bank  with  proof  reasonably  satisfactory  to  Bank  indicating  that  Borrower  has  made  such  withholding  payment;
provided, however, that Borrower need not make any withholding payment if the amount or validity of such withholding payment is contested
in  good  faith  by  appropriate  and  timely  proceedings  and  as  to  which  payment  in  full  is  bonded  or  reserved  against  by  Borrower.    The
agreements and obligations of Borrower contained in this Section 2.5 shall survive the termination of this Agreement.

3.

CONDITIONS OF LOANS

Conditions Precedent to Initial Credit Extension.  Bank’s obligation to make the initial Credit Extension is
subject to the condition precedent that Bank shall have received, in form and substance satisfactory to Bank, such documents, and completion
of such other matters, as Bank may reasonably deem necessary or appropriate, including, without limitation:

3.1

(a)

(b)

(c)

duly executed original signatures to the Loan Documents;

duly executed original signatures to the Warrant;

duly executed original signatures to the Control Agreement;

the Operating Documents and good standing certificates of Borrower certified by the Secretaries of
State (or equivalent agency thereof) of the States of Delaware and Washington and each other jurisdiction in which Borrower is qualified to
conduct business, each as of a date no earlier than thirty (30) days prior to the Effective Date;

(d)

(e)

duly executed original signatures to the completed Borrowing Resolutions for Borrower;

certified  copies,  dated  as  of  a  recent  date,  of  financing  statement  searches,  as  Bank  may  request,
accompanied by written evidence (including any UCC termination statements) that the Liens indicated in any such financing statements either
constitute Permitted Liens or have been or, in connection with the initial Credit Extension, will be terminated or released;

(f)

(g)

(h)

the Perfection Certificate of Borrower, together with the duly executed original signature thereto;

a  landlord’s  consent  in  favor  of  Bank  for  201  Elliott  Ave  West,  Suite  230,  Seattle,  Washington

98119 by the landlord thereof, together with the duly executed original signatures thereto;

amendments thereto;

(i)

a copy of Borrower’s Registration Rights Agreement and/or Investors’ Rights Agreement and any

evidence satisfactory to Bank that the insurance policies and endorsements required by Section 6.5
hereof  are  in  full  force  and  effect,  together  with  appropriate  evidence  showing  lender  loss  payable  and/or  additional  insured  clauses  or
endorsements in favor of Bank; and

(j)

-4-

 
 
 
(k)

payment of the fees and Bank Expenses then due as specified in Section 2.3 hereof.

including the initial Credit Extension, is subject to the following conditions precedent:

3.2

Conditions  Precedent  to  all  Credit  Extensions.    Bank’s  obligations  to  make  each  Credit  Extension,

(a)

timely receipt of an executed Payment/Advance Form;

(b)

the  representations  and  warranties  in  this  Agreement  shall  be  true,  accurate,  and  complete  in  all
material respects on the date of the Payment/Advance Form and on the Funding Date of each Credit Extension; provided, however, that such
materiality qualifier shall not be applicable to any representations and warranties that already are qualified or modified by materiality in the text
thereof;  and  provided,  further  that  those  representations  and  warranties  expressly  referring  to  a  specific  date  shall  be  true,  accurate  and
complete  in  all  material  respects  as  of  such  date,  and  no  Event  of  Default  shall  have  occurred  and  be  continuing  or  result  from  the  Credit
Extension.    Each  Credit  Extension  is  Borrower’s  representation  and  warranty  on  that  date  that  the  representations  and  warranties  in  this
Agreement  remain  true,  accurate,  and  complete  in  all  material  respects;  provided,  however,  that  such  materiality  qualifier  shall  not  be
applicable to any representations and warranties that already are qualified or modified by materiality in the text thereof; and provided, further
that those representations and warranties expressly referring to a specific date shall be true, accurate and complete in all material respects as of
such date; and

Bank determines to its satisfaction that there has not been any material impairment in the general
affairs, management, results of operation, financial condition or the prospect of repayment of the Obligations, or any material adverse deviation
by Borrower from the most recent business plan of Borrower presented to and accepted by Bank.

(c)

Post-Closing Conditions.  Within thirty (30) days after the Effective Date, Bank shall have received, in form
and substance satisfactory to Bank, a landlord’s consent in favor of Bank for (a) 201 Elliott Ave West, Suite 230, Seattle, WA 98119 and (b) 600
Stewart Street, Suite 1503, Seattle, WA 98101, in each case, by the landlord thereof, together with the duly executed original signatures thereto.

3.3

3.4

Covenant to Deliver.  Except as otherwise provided in Section 3.3, Borrower agrees to deliver to Bank each
item required to be delivered to Bank under this Agreement as a condition precedent to any Credit Extension. Borrower expressly agrees that a
Credit Extension made prior to the receipt by Bank of any such item shall not constitute a waiver by Bank of Borrower’s obligation to deliver
such item, and the making of any Credit Extension in the absence of a required item shall be in Bank’s sole discretion.

3.5

Procedures for Borrowing.  Subject to the prior satisfaction of all other applicable conditions to the making
of  a  Term  Loan  Advance  set  forth  in  this  Agreement,  to  obtain  a  Term  Loan  Advance,  Borrower  shall  notify  Bank  (which  notice  shall  be
irrevocable) by electronic mail, facsimile, or telephone by 12:00 p.m. Pacific time on the Funding Date of the Term Loan Advance.  Together
with any such electronic or facsimile notification, Borrower shall deliver to Bank by electronic mail or facsimile a completed Payment/Advance
Form executed by a Responsible Officer or his or her designee.  Bank may rely on any telephone notice given by a person whom Bank believes
is a Responsible Officer or designee.  Bank shall credit the Term Loan Advances to the Designated Deposit Account on the Funding Date of
such Term Loan Advance.  Bank may make Term Loan Advances under

-5-

 
 
this  Agreement  based  on  instructions  from  a  Responsible  Officer  or  his  or  her  designee  if  the  Term  Loan  Advances  are  necessary  to  meet
Obligations which have become due.

4.

CREATION OF SECURITY INTEREST.

Grant of Security Interest.  Borrower hereby grants Bank, to secure the payment mand performance in full
of  all  of  the  Obligations,  a  continuing  security  interest  in,  and  pledges  to  Bank,  the  Collateral,  wherever  located,  whether  now  owned  or
hereafter acquired or arising, and all proceeds and products thereof.

4.1

Borrower  acknowledges  that  it  previously  has  entered,  and/or  may  in  the  future  enter,  into  Bank  Services
Agreements  with  Bank.  Regardless  of  the  terms  of  any  Bank  Services  Agreement,  Borrower  agrees  that  any  amounts  Borrower  owes  Bank
thereunder shall be deemed to be Obligations hereunder and that it is the intent of Borrower and Bank to have all such Obligations secured by
the first priority perfected security interest in the Collateral granted herein (subject only to Permitted Liens that are permitted pursuant to the
terms of this Agreement to have superior priority to Bank’s Lien in this Agreement).

If this Agreement is terminated, Bank’s Lien in the Collateral shall continue until the Obligations (other than
inchoate  indemnity  obligations)  are  repaid  in  full  in  cash.    Upon  payment  in  full  in  cash  of  the  Obligations  (other  than  inchoate  indemnity
obligations)  and  at  such  time  as  Bank’s  obligation  to  make  Credit  Extensions  has  terminated,  Bank  shall,  at  the  sole  cost  and  expense  of
Borrower, release its Liens in the Collateral and all rights therein shall revert to Borrower.  Bank shall cooperate in good faith and shall take all
actions reasonably requested by Borrower to memorialize the release of its Liens in the Collateral, including, but not limited to, the filing of
UCC-3 financing statements. In the event (x) all Obligations (other than inchoate indemnity obligations), except for Bank Services, are satisfied
in full, and (y) this Agreement is terminated, Bank shall terminate the security interest granted herein upon Borrower providing cash collateral
acceptable to Bank in its good faith business judgment for Bank Services, if any.  In the event such Bank Services consist of outstanding Letters
of Credit, Borrower shall provide to Bank cash collateral in an amount equal to (x) if such Letters of Credit are denominated in Dollars, then at
least one hundred five percent (105%); and (y) if such Letters of Credit are denominated in a Foreign Currency, then at least one hundred ten
percent (110%), of the Dollar Equivalent of the face amount of all such Letters of Credit plus all interest, fees, and costs due or to become due
in connection therewith (as estimated by Bank in its business judgment), to secure all of the Obligations relating to such Letters of Credit.

4.2

Priority of Security Interest.  Borrower represents, warrants, and covenants that the security interest granted
herein is and shall at all times continue to be a first priority perfected security interest in the Collateral (subject only to Permitted Liens that are
permitted pursuant to the terms of this Agreement to have superior priority to Bank’s Lien under this Agreement).  If Borrower shall acquire a
commercial tort claim, Borrower shall promptly notify Bank in a writing signed by Borrower of the general details thereof and grant to Bank in
such writing a security interest therein and in the proceeds thereof, all upon the terms of this Agreement, with such writing to be in form and
substance reasonably satisfactory to Bank.

Authorization to File Financing Statements. Borrower hereby authorizes Bank to file financing statements,
without notice to Borrower, with all appropriate jurisdictions to perfect or protect Bank’s interest or rights hereunder, including a notice that any
disposition of the Collateral, by either Borrower or any other Person, shall be deemed to violate the rights of Bank under the Code.

4.3

-6-

 
 
 
5.

REPRESENTATIONS AND WARRANTIES

Borrower represents and warrants as follows:

5.1

Due Organization, Authorization; Power and Authority.  Borrower is duly existing and in good standing
as  a  Registered  Organization  in  its  jurisdiction  of  formation  and  is  qualified  and  licensed  to  do  business  and  is  in  good  standing  in  any
jurisdiction in which the conduct of its business or its ownership of property requires that it be qualified except where the failure to do so could
not  reasonably  be  expected  to  have  a  material  adverse  effect  on  Borrower’s  business.    In  connection  with  this  Agreement,  Borrower  has
delivered to Bank a completed certificate signed by Borrower, entitled “Perfection Certificate”.  Borrower represents and warrants to Bank that
(a) Borrower’s exact legal name is that indicated on the Perfection Certificate and on the signature page hereof; (b) Borrower is an organization
of  the  type  and  is  organized  in  the  jurisdiction  set  forth  in  the  Perfection  Certificate;  (c)  the  Perfection  Certificate  accurately  sets  forth
Borrower’s organizational identification number or accurately states that Borrower has none; (d) the Perfection Certificate accurately sets forth
Borrower’s place of business, or, if more than one, its chief executive office as well as Borrower’s mailing address (if different than its chief
executive  office);  (e)  Borrower  (and  each  of  its  predecessors)  has  not,  in  the  past  five  (5)  years,  changed  its  jurisdiction  of  formation,
organizational  structure  or  type,  or  any  organizational  number  assigned  by  its  jurisdiction;  and  (f)  all  other  information  set  forth  on  the
Perfection  Certificate  pertaining  to  Borrower  and  each  of  its  Subsidiaries  is  accurate  and  complete  (it  being  understood  and  agreed  that
Borrower may from time to time update certain information in the Perfection Certificate after the Effective Date to the extent permitted by one
or more specific provisions in this Agreement).

The execution, delivery and performance by Borrower of the Loan Documents to which it is a party have been duly authorized, and
do  not  (i)  conflict  with  any  of  Borrower’s  organizational  documents,  (ii)  contravene,  conflict  with,  constitute  a  default  under  or  violate  any
material  Requirement  of  Law,  (iii)  contravene,  conflict  or  violate  any  applicable  order,  writ,  judgment,  injunction,  decree,  determination  or
award of any Governmental Authority by which Borrower or any of its Subsidiaries or any of their property or assets may be bound or affected,
(iv) require any action by, filing, registration, or qualification with, or Governmental Approval from, any Governmental Authority (except such
Governmental Approvals which have already been obtained and are in full force and effect (or are being obtained pursuant to Section 6.1(b)) or
(v)  conflict  with,  contravene,  constitute  a  default  or  breach  under,  or  result  in  or  permit  the  termination  or  acceleration  of,  any  material
agreement by which Borrower is bound.  Borrower is not in default under any agreement to which it is a party or by which it is bound in which
the default could reasonably be expected to have a material adverse effect on Borrower’s business.

5.2

Collateral.  Borrower has good title to, rights in, and the power to transfer each item of the Collateral upon
which it purports to grant a Lien hereunder, free and clear of any and all Liens except Permitted Liens. Borrower has no Collateral Accounts at
or with any bank or financial institution other than Bank or Bank’s Affiliates except for the Collateral Accounts described in the Perfection
Certificate  delivered  to  Bank  in  connection  herewith  and  which  Borrower  has  taken  such  actions  as  are  necessary  to  give  Bank  a  perfected
security interest therein, pursuant to the terms of Section 6.6(b).  The Accounts are bona fide, existing obligations of the Account Debtors.

The Collateral is not in the possession of any third party bailee (such as a warehouse) except as otherwise provided in the Perfection
Certificate.  None of the components of the Collateral shall be maintained at locations other than as provided in the Perfection Certificate or as
permitted pursuant to Section 7.2.

All Inventory is in all material respects of good and marketable quality, free from material defects.

-7-

 
 
 
Borrower  is  the  sole  owner  of  the  Intellectual  Property  which  it  owns  or  purports  to  own  except  for  (a)  non-exclusive  licenses
granted to its customers in the ordinary course of business, (b) over-the-counter software that is commercially available to the public, and (c)
material Intellectual Property licensed to Borrower and noted on the Perfection Certificate.  Each Patent which it owns or purports to own and
which is material to Borrower’s business is valid and enforceable, and no part of the Intellectual Property which Borrower owns or purports to
own and which is material to Borrower’s business has been judged invalid or unenforceable, in whole or in part.  To the best of Borrower’s
knowledge, no claim has been made that any part of the Intellectual Property violates the rights of any third party except to the extent such
claim would not reasonably be expected to have a material adverse effect on Borrower’s business.

Except as noted on the Perfection Certificate, Borrower is not a party to, nor is it bound by, any Restricted License.

Litigation.   There  are  no  actions  or  proceedings  pending  or,  to  the  knowledge  of  any  Responsible  Officer,
threatened in writing by or against Borrower or any of its Subsidiaries involving more than, individually or in the aggregate, Fifty Thousand
Dollars ($50,000).

5.3

5.4

Financial Statements; Financial Condition.  All consolidated financial statements for Borrower and any of
its  Subsidiaries  delivered  to  Bank  fairly  present  in  all  material  respects  Borrower’s  consolidated  financial  condition  and  Borrower’s
consolidated results of operations.  There has not been any material deterioration in Borrower’s consolidated financial condition since the date
of the most recent financial statements submitted to Bank.

Solvency.    The  fair  salable  value  of  Borrower’s  consolidated  assets  (including  goodwill  minus  disposition
costs)  exceeds  the  fair  value  of  Borrower’s  liabilities;  Borrower  is  not  left  with  unreasonably  small  capital  after  the  transactions  in  this
Agreement; and Borrower is able to pay its debts (including trade debts) as they mature.

5.5

5.6

Regulatory  Compliance.    Borrower  is  not  an  “investment  company”  or  a  company  “controlled”  by  an
“investment company” under the Investment Company Act of 1940, as amended. Borrower is not engaged as one of its important activities in
extending credit for margin stock (under Regulations X, T and U of the Federal Reserve Board of Governors). Borrower (a) has complied in all
material respects with all Requirements of Law, and (b) has not violated any Requirements of Law the violation of which could reasonably be
expected to have a material adverse effect on its business.  None of Borrower’s or any of its Subsidiaries’ properties or assets has been used by
Borrower  or  any  Subsidiary  or,  to  the  best  of  Borrower’s  knowledge,  by  previous  Persons,  in  disposing,  producing,  storing,  treating,  or
transporting  any  hazardous  substance  other  than  legally.    Borrower  and  each  of  its  Subsidiaries  have  obtained  all  consents,  approvals  and
authorizations of, made all declarations or filings with, and given all notices to, all Government Authorities that are necessary to continue their
respective businesses as currently conducted.

other equity securities except for Permitted Investments.

5.7

Subsidiaries; Investments.    Borrower  does  not  own  any  stock,  partnership,  or  other  ownership  interest  or

5.8

Tax Returns and Payments; Pension Contributions.  Borrower has timely filed all required tax returns and
reports,  and  Borrower  has  timely  paid  all  foreign,  federal,  state  and  local  taxes,  assessments,  deposits  and  contributions  owed  by  Borrower
except (a) to the extent such taxes are being contested in good faith by appropriate proceedings promptly instituted and diligently conducted, so
long as such reserve or other appropriate provision, if any, as shall be required in conformity with GAAP

-8-

 
 
shall have been made therefor, or (b) if such taxes, assessments, deposits and contributions do not, individually or in the aggregate, exceed Five
Thousand Dollars ($5,000).

To the extent Borrower defers payment of any contested taxes, Borrower shall (i) notify Bank in writing of the commencement of,
and any material development in, the proceedings, and (ii) post bonds or take any other steps required to prevent the governmental authority
levying such contested taxes from obtaining a Lien upon any of the Collateral that is other than a “Permitted Lien.”  Borrower is unaware of
any claims or adjustments proposed for any of Borrower’s prior tax years which could result in additional taxes becoming due and payable by
Borrower.  Borrower has paid all amounts necessary to fund all present pension, profit sharing and deferred compensation plans in accordance
with their terms, and Borrower has not withdrawn from participation in, and has not permitted partial or complete termination of, or permitted
the  occurrence  of  any  other  event  with  respect  to,  any  such  plan  which  could  reasonably  be  expected  to  result  in  any  liability  of  Borrower,
including any liability to the Pension Benefit Guaranty Corporation or its successors or any other governmental agency.

fund its general business requirements and not for personal, family, household or agricultural purposes.

5.9

Use of Proceeds.  Borrower shall use the proceeds of the Credit Extensions solely as working capital and to

5.10

Full Disclosure.    No  written  representation,  warranty  or  other  statement  of  Borrower  in  any  certificate  or
written statement given to Bank, as of the date such representation, warranty, or other statement was made, taken together with all such written
certificates and written statements given to Bank, contains any untrue statement of a material fact or omits to state a material fact necessary to
make the statements contained in the certificates or statements not misleading (it being recognized by Bank that the projections and forecasts
provided by Borrower in good faith and based upon reasonable assumptions are not viewed as facts and that actual results during the period or
periods covered by such projections and forecasts may differ from the projected or forecasted results).

Definition of “Knowledge.”  For purposes of the Loan Documents, whenever a representation or warranty is
made to Borrower’s knowledge or awareness, to the “best of” Borrower’s knowledge, or with a similar qualification, knowledge or awareness
means the actual knowledge, after reasonable investigation, of any Responsible Officer.

5.11

6.

AFFIRMATIVE COVENANTS

Borrower shall do all of the following:

6.1

Government Compliance.

Maintain  its  and  all  its  Subsidiaries’  legal  existence  and  good  standing  in  their  respective
jurisdictions  of  formation  and  maintain  qualification  in  each  jurisdiction  in  which  the  failure  to  so  qualify  would  reasonably  be  expected  to
have a material adverse effect on Borrower’s business or operations.  Borrower shall comply, and have each Subsidiary comply, in all material
respects, with all laws, ordinances and regulations to which it is subject.

(a)

Obtain  all  of  the  Governmental  Approvals  necessary  for  the  performance  by  Borrower  of  its
obligations  under  the  Loan  Documents  to  which  it  is  a  party  and  the  grant  of  a  security  interest  to  Bank  in  the  Collateral.    Borrower  shall
promptly provide copies of any such obtained Governmental Approvals to Bank.

(b)

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6.2

Financial Statements, Reports, Certificates. Provide Bank with the following:

Monthly Financial Statements.  As soon as available, but no later than thirty (30) days after the last
day  of  each  month,  a  company-prepared  consolidated  balance  sheet  and  income  statement  covering  Borrower’s  consolidated  operations  for
such month certified by a Responsible Officer and in a form acceptable to Bank (the “Monthly Financial Statements”);

(a)

Monthly  Compliance  Certificate.    Within  thirty  (30)  days  after  the  last  day  of  each  month  and
together with the Monthly Financial Statements, a duly completed Compliance Certificate signed by a Responsible Officer, certifying that as of
the end of such month, Borrower was in full compliance with all of the terms and conditions of this Agreement, and such other information as
Bank may reasonably request;

(b)

(c)

Annual  Operating  Budget  and  Financial  Projections.    Commencing  with  the  2017  fiscal  year  of
Borrower,  within  ninety  (90)  days  after  the  last  day  of  each  fiscal  year  of  Borrower  (and  more  frequently  as  updated),  (i)  annual  operating
budgets (including income statements, balance sheets and cash flow statements, by month) for the upcoming fiscal year of Borrower, and (ii)
annual financial projections for the following fiscal year (on a quarterly basis) as approved by Borrower’s board of directors, together with any
related business forecasts used in the preparation of such annual financial projections;

(d)

Annual  Financial  Statements.    (A)  at  all  times  that  Borrower’s  Board  of  Directors  requires
Borrower to prepare audited financial statements, as soon as available, but no later than one hundred eighty (180) days after the last day of
Borrower’s  fiscal  year,  audited  consolidated  financial  statements  prepared  under  GAAP,  consistently  applied,  together  with  an  unqualified
opinion on the financial statements from an independent certified public accounting firm reasonably acceptable to Bank and (B) at all other
times,  as  soon  as  available,  but  no  later  than  seventy-five  (75)  days  after  the  last  day  of  Borrower’s  fiscal  year,  a  company-prepared
consolidated  balance  sheet  and  income  statement  covering  Borrower’s  consolidated  operations  during  such  fiscal  year  certified  by  a
Responsible Officer and in a form acceptable to Bank;

made available to Borrower’s security holders or to any holders of Subordinated Debt;

(e)

Other Statements.    Within  five  (5)  days  of  delivery,  copies  of  all  statements,  reports  and  notices

(f)

SEC Filings.  In the event that Borrower becomes subject to the reporting requirements under the
Exchange Act within five (5) days of filing, copies of all periodic and other reports, proxy statements and other materials filed by Borrower
with the SEC, any Governmental Authority succeeding to any or all of the functions of the SEC or with any national securities exchange, or
distributed to its shareholders, as the case may be. Documents required to be delivered pursuant to the terms hereof (to the extent any such
documents are included in materials otherwise filed with the SEC) may be delivered electronically and if so delivered, shall be deemed to have
been  delivered  on  the  date  on  which  Borrower  posts  such  documents,  or  provides  a  link  thereto,  on  Borrower’s  website  on  the  Internet  at
Borrower’s  website  address;  provided,  however,  Borrower  shall  promptly  notify  Bank  in  writing  (which  may  be  by  electronic  mail)  of  the
posting of any such documents;

Legal Action Notice.  A prompt report of any legal actions pending or threatened in writing against
Borrower  or  any  of  its  Subsidiaries  that  could  result  in  damages  or  costs  to  Borrower  or  any  of  its  Subsidiaries  of,  individually  or  in  the
aggregate, Fifty Thousand Dollars ($50,000) or more; and

(g)

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(h)

Other Financial Information.  Other financial information reasonably requested by Bank.

6.3

Inventory;  Returns.    Keep  all  Inventory  in  good  and  marketable  condition,  free  from  material  defects.
Returns and allowances between Borrower and its Account Debtors shall follow Borrower’s customary practices as they exist at the Effective
Date.  Borrower  must  promptly  notify  Bank  of  all  returns,  recoveries,  disputes  and  claims  that  involve  more  than  Fifty  Thousand  Dollars
($50,000).

6.4

Taxes; Pensions.  Timely file, and require each of its Subsidiaries to timely file, all required tax returns and
reports and timely pay, and require each of its Subsidiaries to timely pay, all foreign, federal, state and local taxes, assessments, deposits and
contributions  owed  by  Borrower  and  each  of  its  Subsidiaries,  except  for  deferred  payment  of  any  taxes  contested  pursuant  to  the  terms  of
Section 5.8 hereof, and shall deliver to Bank, on demand, appropriate certificates attesting to such payments, and pay all amounts necessary to
fund all present pension, profit sharing and deferred compensation plans in accordance with their terms.

6.5

Insurance.

(a)

Keep  its  business  and  the  Collateral  insured  for  risks  and  in  amounts  standard  for  companies  in
Borrower’s industry and location as reasonably determined by Borrower’s board of directors and as Bank may reasonably request.  Insurance
policies shall be in a form, with financially sound and reputable insurance companies that are not Affiliates of Borrower, and in amounts that
are satisfactory to Bank, in its reasonable discretion.  All property policies shall have a lender’s loss payable endorsement showing Bank as the
sole lender loss payee.  All liability policies shall show, or have endorsements showing, Bank as an additional insured.  Bank shall be named as
lender loss payee and/or additional insured with respect to any such insurance providing coverage in respect of any Collateral.

(b)

Ensure that proceeds payable under any property policy are, at Bank’s option, payable to Bank on
account of the Obligations.  Notwithstanding the foregoing, (a) so long as no Event of Default has occurred and is continuing, Borrower shall
have the option of applying the proceeds of any casualty policy up to Two Hundred Thousand Dollars ($200,000) with respect to any loss, but
not  exceeding  Two  Hundred  Fifty  Thousand  Dollars  ($250,000)  in  the  aggregate  for  all  losses  under  all  casualty  policies  in  any  one  year],
toward the replacement or repair of destroyed or damaged property; provided that any such replaced or repaired property (i) shall be of equal or
like  value  as  the  replaced  or  repaired  Collateral  and  (ii)  shall  be  deemed  Collateral  in  which  Bank  has  been  granted  a  first  priority  security
interest, and (b) after the occurrence and during the continuance of an Event of Default, all proceeds payable under such casualty policy shall,
at the option of Bank, be payable to Bank on account of the Obligations.

(c)

At Bank’s request, Borrower shall deliver certified copies of insurance policies and evidence of all
premium payments. Each provider of any such insurance required under this Section 6.5 shall agree, by endorsement upon the policy or policies
issued by it or by independent instruments furnished to Bank, that it will give Bank thirty (30) days prior written notice before any such policy
or policies shall be materially altered or canceled.  If Borrower fails to obtain insurance as required under this Section 6.5 or to pay any amount
or  furnish  any  required  proof  of  payment  to  third  persons  and  Bank,  Bank  may  make  all  or  part  of  such  payment  or  obtain  such  insurance
policies required in this Section 6.5, and take any action under the policies Bank deems prudent.

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6.6

Operating Accounts.

(a)

Maintain Borrower’s primary banking relationship, including, without limitation, its operating and
other  deposit  accounts,  investment  management,  Letters  of  Credit,  and  foreign  exchange  services,  with  Bank  and  Bank’s  Affiliates,  which
accounts  (i)  within  thirty  (30)  days  from  the  Effective  Date,  shall  represent  at  least  50%  of  the  dollar  value  of  Borrower’s  accounts  at  all
financial institutions and (ii) within ninety (90) days from the Effective Date, shall represent at least 100% of the dollar value of Borrower’s
accounts at all financial institutions.

(b)

Provide  Bank  five  (5)  days  prior  written  notice  before  establishing  any  Collateral  Account  at  or
with any bank or financial institution other than Bank or Bank’s Affiliates.  For each Collateral Account that Borrower at any time maintains,
Borrower shall cause the applicable bank or financial institution (other than Bank) at or with which any Collateral Account is maintained to
execute and deliver a Control Agreement or other appropriate instrument with respect to such Collateral Account to perfect Bank’s Lien in such
Collateral Account in accordance with the terms hereunder which Control Agreement may not be terminated without the prior written consent
of  Bank.    The  provisions  of  the  previous  sentence  shall  not  apply  to  deposit  accounts  exclusively  used  for  payroll,  payroll  taxes  and  other
employee wage and benefit payments to or for the benefit of Borrower’s employees and identified to Bank by Borrower as such.

6.7

6.8

Reserved.

Protection of Intellectual Property Rights.

(a)

(i)  Protect,  defend  and  maintain  the  validity  and  enforceability  of  its  Intellectual  Property;  (ii)
promptly advise Bank in writing of material infringements or any other event that could reasonably be expected to materially and adversely
affect the value of its Intellectual Property; and (iii) not allow any Intellectual Property material to Borrower’s business (with such materiality
to be determined in the reasonable discretion of Borrower’s board of directors) to be abandoned, forfeited or dedicated to the public without
Bank’s written consent.

(b)

Provide  written  notice  to  Bank  within  thirty  (30)  days  of  entering  or  becoming  bound  by  any
Restricted License (other than over-the-counter software that is commercially available to the public). Borrower shall take such commercially
reasonable steps as Bank reasonably requests to obtain the consent of, or waiver by, any person whose consent or waiver is necessary for (i) any
Restricted License to be deemed “Collateral” and for Bank to have a security interest in it that might otherwise be restricted or prohibited by
law or by the terms of any such Restricted License, whether now existing or entered into in the future, and (ii) Bank to have the ability in the
event of a liquidation of any Collateral to dispose of such Collateral in accordance with Bank’s rights and remedies under this Agreement and
the other Loan Documents.

6.9

Litigation Cooperation.    From  the  date  hereof  and  continuing  through  the  termination  of  this  Agreement,
make available to Bank, without expense to Bank, Borrower and its officers, employees and agents and Borrower’s books and records, to the
extent that Bank may deem them reasonably necessary to prosecute or defend any third-party suit or proceeding instituted by or against Bank
with respect to any Collateral or relating to Borrower.

6.10

6.11

Reserved.

Formation or Acquisition of Subsidiaries.    Notwithstanding  and  without  limiting  the  negative  covenants

contained in Sections 7.3 and 7.7 hereof, at the time that Borrower forms

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any direct or indirect Subsidiary or acquires any direct or indirect Subsidiary after the Effective Date, Borrower shall, upon Bank’s request in its
sole and absolute discretion, (a) cause such new Subsidiary to provide to Bank either a joinder to this Agreement to cause such Subsidiary to
become a co-borrower hereunder or a Guaranty, together with such appropriate financing statements and/or Control Agreements, all in form
and substance satisfactory to Bank (including being sufficient to grant Bank a first priority Lien (subject to Permitted Liens) in and to the assets
of such newly formed or acquired Subsidiary), (b) provide to Bank appropriate certificates and powers and financing statements, pledging all of
the direct or beneficial ownership interest in such new Subsidiary, in form and substance satisfactory to Bank, and (c) provide to Bank all other
documentation in form and substance satisfactory to Bank, including one or more opinions of counsel satisfactory to Bank, which in its opinion
is  appropriate  with  respect  to  the  execution  and  delivery  of  the  applicable  documentation  referred  to  above.   Any  document,  agreement,  or
instrument executed or issued pursuant to this Section 6.11 shall be a Loan Document.

6.12

Further Assurances.  Execute any further instruments and take further action as Bank reasonably requests
to perfect or continue Bank’s Lien in the Collateral or to effect the purposes of this Agreement. Deliver to Bank, within five (5) days after the
same  are  sent  or  received,  copies  of  all  correspondence,  reports,  documents  and  other  filings  with  any  Governmental  Authority  regarding
compliance with or maintenance of Governmental Approvals or Requirements of Law or that could reasonably be expected to have a material
effect on any of the Governmental Approvals or otherwise on the operations of Borrower or any of its Subsidiaries.

7.

NEGATIVE COVENANTS

Borrower shall not do any of the following without Bank’s prior written consent:

7.1

Dispositions.    Convey,  sell,  lease,  transfer,  assign,  or  otherwise  dispose  of  (collectively,  “Transfer”),  or
permit any of its Subsidiaries to Transfer, all or any part of its business or property, except for Transfers (a) of Inventory in the ordinary course
of  business;  (b)  of  worn-out  or  obsolete  Equipment  that  is,  in  the  reasonable  judgment  of  Borrower,  no  longer  economically  practicable  to
maintain or useful in the ordinary course of business of Borrower; (c) consisting of Permitted Liens and Permitted Investments; (d) consisting
of the sale or issuance of any stock of Borrower permitted under Section 7.2 of this Agreement; (e) consisting of Borrower’s use or transfer of
money or Cash Equivalents in the ordinary course of its business for the payment of ordinary course business expenses in a manner that is not
prohibited  by  the  terms  of  this  Agreement  or  the  other  Loan  Documents,  and  (f)  of  non-exclusive  licenses  for  the  use  of  the  property  of
Borrower  or  its  Subsidiaries  in  the  ordinary  course  of  business  and  licenses  that  could  not  result  in  a  legal  transfer  of  title  of  the  licensed
property but that may be exclusive in respects other than granting rights to a specific geographical territory and that may be exclusive as to
territory only as to discreet geographical areas outside of the United States.

7.2

Changes  in  Business,  Management,  Control,  or  Business  Locations.    (a)  Engage  in  or  permit  any  of  its
Subsidiaries  to  engage  in  any  business  other  than  the  businesses  currently  engaged  in  by  Borrower  and  such  Subsidiary,  as  applicable,  or
reasonably  related  thereto,  as  determined  by  Borrower’s  board  of  directors  in  its  reasonable  discretion;  (b)  liquidate  or  dissolve;  (c)  have  a
change in management, provided, however, that the addition of new corporate officers shall not be deemed a change in management as long as
Mitchell Gold or Jay Venkatesan remains in a senior management role with Borrower, or (d) permit or suffer any Change in Control.

Borrower  shall  not,  without  at  least  thirty  (30)  days  prior  written  notice  to  Bank:  (1)  add  any  new  offices  or  business
locations, including warehouses (unless such new offices or business locations contain less than Ten Thousand Dollars ($10,000) in Borrower’s
assets or property) or deliver any portion of the Collateral valued, individually or in the aggregate, in excess of Ten Thousand Dollars

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($10,000)  to  a  bailee  at  a  location  other  than  to  a  bailee  and  at  a  location  already  disclosed  in  the  Perfection  Certificate,  (2)  change  its
jurisdiction of organization, (3) change its organizational structure or type, (4) change its legal name, or (5) change any organizational number
(if any) assigned by its jurisdiction of organization. If Borrower intends to deliver any portion of the Collateral valued, individually or in the
aggregate, in excess of Ten Thousand Dollars ($10,000) to a bailee, and Bank and such bailee are not already parties to a bailee agreement
governing both the Collateral and the location to which Borrower intends to deliver the Collateral, then Borrower will first receive the written
consent of Bank, and such bailee shall execute and deliver a bailee agreement in form and substance satisfactory to Bank.

7.3

Mergers or Acquisitions.  Merge or consolidate, or permit any of its Subsidiaries to  merge  or  consolidate,
with any other Person, or acquire, or permit any of its Subsidiaries to acquire, all or substantially all of the capital stock or property of another
Person (including, without limitation, by the formation of any Subsidiary).  A Subsidiary may merge or consolidate into another Subsidiary or
into Borrower.

other than Permitted Indebtedness.

7.4

Indebtedness.  Create, incur, assume, or be liable for any Indebtedness, or permit any  Subsidiary  to  do  so,

7.5

Encumbrance. Create, incur, allow, or suffer any Lien on any of its property, or assign or convey any right to
receive income, including the sale of any Accounts, or permit any of its Subsidiaries to do so, except for Permitted Liens, permit any Collateral
not to be subject to the first priority security interest granted herein, or enter into any agreement, document, instrument or other arrangement
(except  with  or  in  favor  of  Bank)  with  any  Person  which  directly  or  indirectly  prohibits  or  has  the  effect  of  prohibiting  Borrower  or  any
Subsidiary from assigning, mortgaging, pledging, granting a security interest in or upon, or encumbering any of Borrower’s or any Subsidiary’s
Intellectual Property, except as is otherwise permitted in Section 7.1 hereof and the definition of “Permitted Liens” herein.

Section 6.6(b) hereof.

7.6

Maintenance  of  Collateral  Accounts.    Maintain  any  Collateral  Account  except  pursuant  to  the  terms  of

7.7

Distributions; Investments.  (a) Pay any dividends or make any distribution or payment or redeem, retire or
purchase any capital stock, provided that (i) Borrower may convert any of its convertible securities into other securities pursuant to the terms of
such convertible securities or otherwise in exchange thereof, (ii) Borrower may pay dividends solely in common stock; and (iii) Borrower may
repurchase the stock of former employees or consultants pursuant to stock repurchase agreements so long as an Event of Default does not exist
at  the  time  of  such  repurchase  and  would  not  exist  after  giving  effect  to  such  repurchase,  provided  that  the  aggregate  amount  of  all  such
repurchases does not exceed Two Hundred Fifty Thousand Dollars ($250,000) per fiscal year; or (b) directly or indirectly make any Investment
(including, without limitation, by the formation of any Subsidiary) other than Permitted Investments, or permit any of its Subsidiaries to do so.

Transactions with Affiliates.  Directly or indirectly enter into or permit to exist any material transaction with
any Affiliate of Borrower, except for transactions that are in the ordinary course of Borrower’s business, upon fair and reasonable terms that are
no less favorable to Borrower than would be obtained in an arm’s length transaction with a non-affiliated Person.

7.8

Subordinated Debt.  (a) Make or permit any payment on any Subordinated Debt, except under the terms of
the  subordination,  intercreditor,  or  other  similar  agreement  to  which  such  Subordinated  Debt  is  subject,  or  (b)  amend  any  provision  in  any
document relating to the Subordinated

7.9

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Debt which would increase the amount thereof, provide for earlier or greater principal, interest, or other payments thereon, or adversely affect
the subordination thereof to Obligations owed to Bank.

7.10

Compliance.    Become  an  “investment  company”  or  a  company  controlled  by  an  “investment  company”,
under the Investment Company Act of 1940, as amended, or undertake as one of its important activities extending credit to purchase or carry
margin  stock  (as  defined  in  Regulation  U  of  the  Board  of  Governors  of  the  Federal  Reserve  System),  or  use  the  proceeds  of  any  Credit
Extension  for  that  purpose;  fail  to  (a)  meet  the  minimum  funding  requirements  of  ERISA,  (b)  prevent  a  Reportable  Event  or  Prohibited
Transaction, as defined in ERISA from occurring, or (c) comply with the Federal Fair Labor Standards Act, the failure of any of the conditions
described in clauses (a) through (c) which could reasonably be expected to have a material adverse effect on Borrower’s business; or violate
any other law or regulation, if the violation could reasonably be expected to have a material adverse effect on Borrower’s business, or permit
any of its Subsidiaries to do so; withdraw or permit any Subsidiary to withdraw from participation in, permit partial or complete termination of,
or permit the occurrence of any other event with respect to, any present pension, profit sharing and deferred compensation plan which could
reasonably  be  expected  to  result  in  any  liability  of  Borrower,  including  any  liability  to  the  Pension  Benefit  Guaranty  Corporation  or  its
successors or any other governmental agency.

8.

EVENTS OF DEFAULT

Any one of the following shall constitute an event of default (an “Event of Default”) under this Agreement:

8.1

Payment Default.  Borrower fails to (a) make any payment of principal or interest on any Credit Extension
when due, or (b) pay any other Obligations within three (3) Business Days after such Obligations are due and payable (which three (3) Business
Day  cure  period  shall  not  apply  to  payments  due  on  the  Term  Loan  Maturity  Date).  During  the  cure  period,  the  failure  to  make  or  pay  any
payment specified under clause (b) hereunder is not an Event of Default (but no Credit Extension will be made during the cure period);

8.2

Covenant Default.

applicable), 6.8(b), 6.10 or violates any covenant in Section 7; or

(a)

Borrower  fails  or  neglects  to  perform  any  obligation  in  Sections  3.3,  6.2,  6.4,  6.5,  6.6,  6.7  (if

(b)

Borrower  fails  or  neglects  to  perform,  keep,  or  observe  any  other  term,  provision,  condition,
covenant or agreement contained in this Agreement or any Loan Documents, and as to any default (other than those specified in this Section 8)
under such other term, provision, condition, covenant or agreement that can be cured, has failed to cure the default within ten (10) days after the
occurrence thereof; provided, however, that if the default cannot by its nature be cured within the ten (10) day period or cannot after diligent
attempts by Borrower be cured within such ten (10) day period, and such default is likely to be cured within a reasonable time, then Borrower
shall have an additional period (which shall not in any case exceed thirty (30) days) to attempt to cure such default, and within such reasonable
time period the failure to cure the default shall not be deemed an Event of Default (but no Credit Extensions shall be made during such cure
period). Cure periods provided under this section shall not apply, among other things, to financial covenants (if any) or any other covenants set
forth in clause (a) above;

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8.3

8.4

Material Adverse Change.  A Material Adverse Change occurs;

Attachment; Levy; Restraint on Business.

(a)

(i) The service of process seeking to attach, by trustee or similar process, any funds of Borrower or
of any entity under the control of Borrower (including a Subsidiary), or (ii) a notice of lien or levy is filed against any of Borrower’s assets by
any  Governmental  Authority,  and  the  same  under  subclauses  (i)and  (ii)  hereof  are  not,  within  ten  (10)  days  after  the  occurrence  thereof,
discharged or stayed (whether through the posting of a bond or otherwise); provided, however, no Credit Extensions shall be made during any
ten (10) day cure period; or

(i)  any  material  portion  of  Borrower’s  assets  is  attached,  seized,  levied  on,  or  comes  into
possession of a trustee or receiver, or (ii) any court order enjoins, restrains, or prevents Borrower from conducting all or any material part of its
business;

(b)

8.5

Insolvency.  (a) Borrower or any of its Subsidiaries is unable to pay its debts (including trade debts) as they
become due or otherwise becomes insolvent; (b) Borrower or any of its Subsidiaries begins an Insolvency Proceeding; or (c) an Insolvency
Proceeding is begun against Borrower or any of its Subsidiaries and is not dismissed or stayed within thirty (30) days (but no Credit Extensions
shall be made while any of the conditions described in clause (a) exist and/or until any Insolvency Proceeding is dismissed);

8.6

Other Agreements.  There is, under any agreement to which Borrower is a party with a third party or parties,
(a) any default resulting in a right by such third party or parties, whether or not exercised, to accelerate the maturity of any Indebtedness in an
amount individually or in the aggregate in excess of Fifty Thousand Dollars ($50,000); or (b) any breach or default by Borrower, the result of
which could have a material adverse effect on Borrower’s business;

8.7

Judgments; Penalties.  One or more fines, penalties or final judgments, orders or decrees for the payment of
money  in  an  amount,  individually  or  in  the  aggregate,  of  at  least  Fifty  Thousand  Dollars  ($50,000)  (not  covered  by  independent  third-party
insurance as to which liability has been accepted by such insurance carrier) shall be rendered against Borrower by any Governmental Authority,
and  the  same  are  not,  within  ten  (10)  days  after  the  entry,  assessment  or  issuance  thereof,  discharged,  satisfied,  or  paid,  or  after  execution
thereof, stayed or bonded pending appeal, or such judgments are not discharged prior to the expiration of any such stay (provided that no Credit
Extensions will be made prior to the satisfaction, payment, discharge, stay, or bonding of such fine, penalty, judgment, order or decree);

Misrepresentations.    Borrower  or  any  Person  acting  for  Borrower  makes  any  representation,  warranty,  or
other  statement  now  or  later  in  this  Agreement,  any  Loan  Document  or  in  any  writing  delivered  to  Bank  or  to  induce  Bank  to  enter  this
Agreement or any Loan Document, and such representation, warranty, or other statement is incorrect in any material respect when made;

8.8

8.9

Subordinated Debt.  Any document, instrument, or agreement evidencing any Subordinated  Debt  shall  for
any reason be revoked or invalidated or otherwise cease to be in full force and effect, any Person shall be in breach thereof or contest in any
manner the validity or enforceability thereof or deny that it has any further liability or obligation thereunder, or the Obligations shall for any
reason be subordinated or shall not have the priority contemplated by this Agreement; or

modified in an adverse manner or not renewed in the ordinary course for a

8.10

Governmental Approvals.  Any Governmental Approval shall have been (a) revoked, rescinded, suspended,

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full term or (b) subject to any decision by a Governmental Authority that designates a hearing with respect to any applications for renewal of
any of such Governmental Approval or that could result in the Governmental Authority taking any of the actions described in clause (a) above,
and such decision or such revocation, rescission, suspension, modification or non-renewal (i) cause, or could reasonably be expected to cause, a
Material Adverse Change, or (ii) adversely affects the legal qualifications of Borrower or any of its Subsidiaries to hold such Governmental
Approval in any applicable jurisdiction and such revocation, rescission, suspension, modification or non-renewal could reasonably be expected
to affect the status of or legal qualifications of Borrower or any of its Subsidiaries to hold any Governmental Approval in any other jurisdiction.

9.

BANK’S RIGHTS AND REMEDIES

without notice or demand, do any or all of the following:

9.1

Rights and Remedies.  Upon the occurrence and during the continuance of an Event of Default, Bank may,

Section 8.5 occurs all Obligations are immediately due and payable without any action by Bank);

(a)

declare  all  Obligations  immediately  due  and  payable  (but  if  an  Event  of  Default  described  in

any other agreement between Borrower and Bank;

(b)

stop advancing money or extending credit for Borrower’s benefit under this Agreement or under

(c)

for any Letters of Credit, demand that Borrower (i) deposit cash with Bank in an amount equal to
(x) if such Letters of Credit are denominated in Dollars, then at least one hundred five percent (105%); and (y) if such Letters of Credit are
denominated in a Foreign Currency, then at least one hundred ten percent (110%) of the Dollar Equivalent of the aggregate face amount of all
of such Letters of Credit remaining undrawn (plus all interest, fees, and costs due or to become due in connection therewith (as estimated by
Bank  in  its  good  faith  business  judgment)),  to  secure  all  of  the  Obligations  relating  to  such  Letters  of  Credit,  as  collateral  security  for  the
repayment of any future drawings under such Letters of Credit, and Borrower shall forthwith deposit and pay such amounts, and (ii) pay in
advance all letter of credit fees scheduled to be paid or payable over the remaining term of any Letters of Credit;

(d)

terminate any FX Contracts;

verify  the  amount  of,  demand  payment  of  and  performance  under,  and  collect  any  Accounts  and
General  Intangibles,  settle  or  adjust  disputes  and  claims  directly  with  Account  Debtors  for  amounts  on  terms  and  in  any  order  that  Bank
considers advisable, and notify any Person owing Borrower money of Bank’s security interest in such funds;

(e)

(f)

make any payments and do any acts it considers necessary or reasonable to protect the Collateral
and/or  its  security  interest  in  the  Collateral.  Borrower  shall  assemble  the  Collateral  if  Bank  requests  and  make  it  available  as  Bank
designates.    Bank  may  enter  premises  where  the  Collateral  is  located,  take  and  maintain  possession  of  any  part  of  the  Collateral,  and  pay,
purchase, contest, or compromise any Lien which appears to be prior or superior to its security interest and pay all expenses incurred. Borrower
grants Bank a license to enter and occupy any of its premises, without charge, to exercise any of Bank’s rights or remedies;

Bank owing to or for the credit or the account of Borrower;

(g)

apply to the Obligations any (i) balances and deposits of Borrower it holds, or (ii) amount held by

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(h)

ship, reclaim, recover, store, finish, maintain, repair, prepare for sale, advertise for sale, and sell the
Collateral.  Bank  is  hereby  granted  a  non-exclusive,  royalty-free  license  or  other  right  to  use,  without  charge,  Borrower’s  labels,  Patents,
Copyrights, mask works, rights of use of any name, trade secrets, trade names, Trademarks, and advertising matter, or any similar property as it
pertains to the Collateral, in completing production of, advertising for sale, and selling any Collateral and, in connection with Bank’s exercise
of its rights under this Section, Borrower’s rights under all licenses and all franchise agreements inure to Bank’s benefit;

place a “hold” on any account maintained with Bank and/or deliver a notice of exclusive control,
any  entitlement  order,  or  other  directions  or  instructions  pursuant  to  any  Control  Agreement  or  similar  agreements  providing  control  of  any
Collateral;

(i)

(j)

(k)

demand and receive possession of Borrower’s Books; and

exercise all rights and remedies available to Bank under the Loan Documents or at law or equity,

including all remedies provided under the Code (including disposal of the Collateral pursuant to the terms thereof).

9.2

Power  of  Attorney.    Borrower  hereby  irrevocably  appoints  Bank  as  its  lawful  attorney-in-fact,  exercisable
upon  the  occurrence  and  during  the  continuance  of  an  Event  of  Default,  to:  (a)  endorse  Borrower’s  name  on  any  checks  or  other  forms  of
payment or security; (b) sign Borrower’s name on any invoice or bill of lading for any Account or drafts against Account Debtors; (c) settle and
adjust disputes and claims about the Accounts directly with Account Debtors, for amounts and on terms Bank determines reasonable; (d) make,
settle, and adjust all claims under Borrower’s insurance policies; (e) pay, contest or settle any Lien, charge, encumbrance, security interest, and
adverse claim in or to the Collateral, or any judgment based thereon, or otherwise take any action to terminate or discharge the same; and (f)
transfer the Collateral into the name of Bank or a third party as the Code permits. Borrower hereby appoints Bank as its lawful attorney-in-fact
to  sign  Borrower’s  name  on  any  documents  necessary  to  perfect  or  continue  the  perfection  of  Bank’s  security  interest  in  the  Collateral
regardless of whether an Event of Default has occurred until all Obligations have been satisfied in full and Bank is under no further obligation
to  make  Credit  Extensions  hereunder.    Bank’s  foregoing  appointment  as  Borrower’s  attorney  in  fact,  and  all  of  Bank’s  rights  and  powers,
coupled with an interest, are irrevocable until all Obligations have been fully repaid and performed and Bank’s obligation to provide Credit
Extensions terminates.

9.3

Protective Payments.  If Borrower fails to obtain the insurance called for by Section 6.5 or fails to pay any
premium thereon or fails to pay any other amount which Borrower is obligated to pay under this Agreement or any other Loan Document or
which may be required to preserve the Collateral, Bank may obtain such insurance or make such payment, and all amounts so paid by Bank are
Bank Expenses and immediately due and payable, bearing interest at the then highest rate applicable to the Obligations, and secured by the
Collateral.  Bank will make reasonable efforts to provide Borrower with notice of Bank obtaining such insurance at the time it is obtained or
within a reasonable time thereafter.  No payments by Bank are deemed an agreement to make similar payments in the future or Bank’s waiver
of any Event of Default.

9.4

Application of Payments and Proceeds Upon Default.  If an Event of Default has occurred and is continuing,
Bank shall have the right to apply in any order any funds in its possession, whether from Borrower account balances, payments, proceeds realized
as the result of any collection of Accounts or other disposition of the Collateral, or otherwise, to the Obligations.  Bank shall pay any surplus to
Borrower by credit to the Designated Deposit Account or to other Persons legally entitled thereto; Borrower shall remain liable to Bank for any
deficiency.  If Bank, directly or indirectly, enters into a deferred payment or other credit transaction with any purchaser at any sale of Collateral,
Bank shall have the

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option, exercisable at any time, of either reducing the Obligations by the principal amount of the purchase price or deferring the reduction of the
Obligations until the actual receipt by Bank of cash therefor.

9.5

Bank’s Liability for Collateral.  So long as Bank complies with reasonable banking practices regarding the
safekeeping of the Collateral in the possession or under the control of Bank, Bank shall not be liable or responsible for: (a) the safekeeping of
the Collateral; (b) any loss or damage to the Collateral; (c) any diminution in the value of the Collateral; or (d) any act or default of any carrier,
warehouseman, bailee, or other Person.  Borrower bears all risk of loss, damage or destruction of the Collateral.

9.6

No Waiver; Remedies Cumulative.    Bank’s  failure,  at  any  time  or  times,  to  require  strict  performance  by
Borrower of any provision of this Agreement or any other Loan Document shall not waive, affect, or diminish any right of Bank thereafter to
demand strict performance and compliance herewith or therewith.  No waiver hereunder shall be effective unless signed by the party granting
the  waiver  and  then  is  only  effective  for  the  specific  instance  and  purpose  for  which  it  is  given.  Bank’s  rights  and  remedies  under  this
Agreement  and  the  other  Loan  Documents  are  cumulative.    Bank  has  all  rights  and  remedies  provided  under  the  Code,  by  law,  or  in
equity.  Bank’s exercise of one right or remedy is not an election and shall not preclude Bank from exercising any other remedy under this
Agreement or other remedy available at law or in equity, and Bank’s waiver of any Event of Default is not a continuing waiver.  Bank’s delay in
exercising any remedy is not a waiver, election, or acquiescence.

Demand  Waiver.    Borrower  waives  demand,  notice  of  default  or  dishonor,  notice  of  payment  and
nonpayment,  notice  of  any  default,  nonpayment  at  maturity,  release,  compromise,  settlement,  extension,  or  renewal  of  accounts,  documents,
instruments, chattel paper, and guarantees held by Bank on which Borrower is liable.

9.7

10.

NOTICES

All  notices,  consents,  requests,  approvals,  demands,  or  other  communication  by  any  party  to  this  Agreement  or  any  other  Loan
Document must be in writing and shall be deemed to have been validly served, given, or delivered: (a) upon the earlier of actual receipt and
three  (3)  Business  Days  after  deposit  in  the  U.S.  mail,  first  class,  registered  or  certified  mail  return  receipt  requested,  with  proper  postage
prepaid; (b) upon transmission, when sent by electronic mail or facsimile transmission; (c) one (1) Business Day after deposit with a reputable
overnight courier with all charges prepaid; or (d) when delivered, if hand-delivered by messenger, all of which shall be addressed to the party to
be notified and sent to the address, facsimile number, or email address indicated below. Bank or Borrower may change its mailing or electronic
mail address or facsimile number by giving the other party written notice thereof in accordance with the terms of this Section 10.

If to Borrower:

Alpine Immune Sciences, Inc.
201 Elliott Ave West, Suite 230
Seattle, Washington 98119
Attn: Mitchell Gold, Chief Executive Officer
Fax:
Email: mgold@alpinebio.com

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With a copy to:

If to Bank:

Van Katzman
Ascent Law Partners, LLP
719 Second Avenue, Suite 1150
Seattle, WA 98104
Email: vkatzman@ascentllp.com

Silicon Valley Bank
555 Mission Street, Suite 900
San Francisco, California 94105
Attn: Jackie Spencer, Director
Email:

jspencer@svb.com

11.

CHOICE OF LAW, VENUE, JURY TRIAL WAIVER AND JUDICIAL REFERENCE

Except as otherwise expressly provided in any of the Loan Documents, California law governs the Loan Documents without regard
to principles of conflicts of law.  Borrower and Bank each submit to the exclusive jurisdiction of the State and Federal courts in Santa Clara
County, California; provided, however, that nothing in this Agreement shall be deemed to operate to preclude Bank from bringing suit or taking
other legal action in any other jurisdiction to realize on the Collateral or any other security for the Obligations, or to enforce a judgment or other
court order in favor of Bank.  Borrower expressly submits and consents in advance to such jurisdiction in any action or suit commenced in any
such court, and Borrower hereby waives any objection that it may have based upon lack of personal jurisdiction, improper venue, or forum non
conveniens  and  hereby  consents  to  the  granting  of  such  legal  or  equitable  relief  as  is  deemed  appropriate  by  such  court.    Borrower  hereby
waives personal service of the summons, complaints, and other process issued in such action or suit and agrees that service of such summons,
complaints, and other process may be made by registered or certified mail addressed to Borrower at the address set forth in, or subsequently
provided by Borrower in accordance with, Section 10 of this Agreement and that service so made shall be deemed completed upon the earlier to
occur of Borrower’s actual receipt thereof or three (3) days after deposit in the U.S. mails, proper postage prepaid.

TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, BORROWER AND BANK EACH WAIVE THEIR
RIGHT  TO  A  JURY  TRIAL  OF  ANY  CLAIM  OR  CAUSE  OF  ACTION  ARISING  OUT  OF  OR  BASED  UPON  THIS
AGREEMENT,  THE  LOAN  DOCUMENTS  OR  ANY  CONTEMPLATED  TRANSACTION,  INCLUDING  CONTRACT,  TORT,
BREACH OF DUTY AND ALL OTHER CLAIMS.  THIS WAIVER IS A MATERIAL INDUCEMENT FOR BOTH PARTIES TO
ENTER INTO THIS AGREEMENT. EACH PARTY HAS REVIEWED THIS WAIVER WITH ITS COUNSEL.

WITHOUT INTENDING IN ANY WAY TO LIMIT THE PARTIES’ AGREEMENT TO WAIVE THEIR RESPECTIVE RIGHT
TO A TRIAL BY JURY, if the above waiver of the right to a trial by jury is not enforceable, the parties hereto agree that any and all disputes or
controversies of any nature between them arising at any time shall be decided by a reference to a private judge, mutually selected by the parties
(or, if they cannot agree, by the Presiding Judge of the Santa Clara County, California Superior Court) appointed in accordance with California
Code of Civil Procedure Section 638 (or pursuant to comparable provisions of federal law if the dispute falls within the exclusive jurisdiction of
the federal courts), sitting without a jury, in Santa Clara County, California; and the parties hereby submit to the jurisdiction of such court.  The
reference  proceedings  shall  be  conducted  pursuant  to  and  in  accordance  with  the  provisions  of  California  Code  of  Civil  Procedure  §§  638
through  645.1,  inclusive.    The  private  judge  shall  have  the  power,  among  others,  to  grant  provisional  relief,  including  without  limitation,
entering temporary restraining orders, issuing preliminary and permanent injunctions and

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appointing receivers.  All such proceedings shall be closed to the public and confidential and all records relating thereto shall be permanently
sealed.  If during the course of any dispute, a party desires to seek provisional relief, but a judge has not been appointed at that point pursuant to
the  judicial  reference  procedures,  then  such  party  may  apply  to  the  Santa  Clara  County,  California  Superior  Court  for  such  relief.    The
proceeding before the private judge shall be conducted in the same manner as it would be before a court under the rules of evidence applicable
to judicial proceedings.  The parties shall be entitled to discovery which shall be conducted in the same manner as it would be before a court
under the rules of discovery applicable to judicial proceedings.  The private judge shall oversee discovery and may enforce all discovery rules
and orders applicable to judicial proceedings in the same manner as a trial court judge. The parties agree that the selected or appointed private
judge shall have the power to decide all issues in the action or proceeding, whether of fact or of law, and shall report a statement of decision
thereon pursuant to California Code of Civil Procedure § 644(a).  Nothing in this paragraph shall limit the right of any party at any time to
exercise  self-help  remedies,  foreclose  against  collateral,  or  obtain  provisional  remedies.    The  private  judge  shall  also  determine  all  issues
relating to the applicability, interpretation, and enforceability of this paragraph.

This Section 11 shall survive the termination of this Agreement.

12.

GENERAL PROVISIONS

12.1

Termination Prior to Term Loan Maturity Date; Survival.  All covenants, representations and warranties
made in this Agreement shall continue in full force until this Agreement has terminated pursuant to its terms and all Obligations have been
satisfied.  So long as Borrower has satisfied the Obligations (other than inchoate indemnity obligations, any other obligations which, by their
terms, are to survive the termination of this Agreement, and any Obligations under Bank Services Agreements that are cash collateralized in
accordance  with  Section  4.1  of  this  Agreement),  this  Agreement  may  be  terminated  prior  to  the  Term  Loan  Maturity  Date  by  Borrower
pursuant  to  the  terms  and  conditions  set  forth  in  Section  2.1.1(c)(ii).    Those  obligations  that  are  expressly  specified  in  this  Agreement  as
surviving this Agreement’s termination shall continue to survive notwithstanding this Agreement’s termination.

12.2

Successors  and  Assigns.    This  Agreement  binds  and  is  for  the  benefit  of  the  successors  and  permitted
assigns of each party. Borrower may not assign this Agreement or any rights or obligations under it without Bank’s prior written consent (which
may be granted or withheld in Bank’s discretion).  Bank has the right, without the consent of or notice to Borrower, to sell, transfer, assign,
negotiate, or grant participation in all or any part of, or any interest in, Bank’s obligations, rights, and benefits under this Agreement and the
other Loan Documents (other than the Warrant, as to which assignment, transfer and other such actions are governed by the terms thereof).

12.3

Indemnification.    Borrower  agrees  to  indemnify,  defend  and  hold  Bank  and  its  directors,  officers,
employees, agents, attorneys, or any other Person affiliated with or representing Bank (each, an “Indemnified Person”) harmless against: (i)
all  obligations,  demands,  claims,  and  liabilities  (collectively,  “Claims”)  claimed  or  asserted  by  any  other  party  in  connection  with  the
transactions contemplated by the Loan Documents; and (ii) all losses or expenses (including Bank Expenses) in any way suffered, incurred, or
paid by such Indemnified Person as a result of, following from, consequential to, or arising from this Agreement and any other transactions
between  Bank  and  Borrower  (including  reasonable  attorneys’  fees  and  expenses),  except  for  Claims  and/or  losses  directly  caused  by  such
Indemnified Person’s gross negligence or willful misconduct.

This Section 12.3 shall survive until all statutes of limitation with respect to the Claims, losses, and expenses for which indemnity is

given shall have run.

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12.4

Time of Essence.  Time is of the essence for the performance of all Obligations in this Agreement.

12.5
determining the enforceability of any provision.

Severability  of  Provisions.    Each  provision  of  this  Agreement  is  severable  from  every  other  provision  in

Documents consistent with the agreement of the parties.

12.6

Correction  of  Loan  Documents.    Bank  may  correct  patent  errors  and  fill  in  any  blanks  in  the  Loan

12.7

Amendments  in  Writing;  Waiver;  Integration.    No  purported  amendment  or  modification  of  any  Loan
Document, or waiver, discharge or termination of any obligation under any Loan Document, shall be enforceable or admissible unless, and only
to  the  extent,  expressly  set  forth  in  a  writing  signed  by  the  party  against  which  enforcement  or  admission  is  sought.    Without  limiting  the
generality of the foregoing, no oral promise or statement, nor any action, inaction, delay, failure to require performance or course of conduct
shall operate as, or evidence, an amendment, supplement or waiver or have any other effect on any Loan Document.  Any waiver granted shall
be limited to the specific circumstance expressly described in it, and shall not apply to any subsequent or other circumstance, whether similar or
dissimilar, or give rise to, or evidence, any obligation or commitment to grant any further waiver.  The Loan Documents represent the entire
agreement  about  this  subject  matter  and  supersede  prior  negotiations  or  agreements.   All  prior  agreements,  understandings,  representations,
warranties, and negotiations between the parties about the subject matter of the Loan Documents merge into the Loan Documents.

separate counterparts, each of which, when executed and delivered, is an original, and all taken together, constitute one Agreement.

12.8

Counterparts.  This Agreement may be executed in any number of counterparts and by different parties on

12.9

Confidentiality.  In handling any confidential information, Bank shall exercise the same degree of care that
it  exercises  for  its  own  proprietary  information,  but  disclosure  of  information  may  be  made:  (a)  to  Bank’s  Subsidiaries  or  Affiliates  (such
Subsidiaries and Affiliates, together with Bank, collectively, “Bank Entities”); (b) to prospective transferees or purchasers of any interest in the
Credit  Extensions  (provided,  however,  Bank  shall  use  its  best  efforts  to  obtain  any  prospective  transferee’s  or  purchaser’s  agreement  to  the
terms  of  this  provision);  (c)  as  required  by  law,  regulation,  subpoena,  or  other  order;  (d)  to  Bank’s  regulators  or  as  otherwise  required  in
connection with Bank’s examination or audit; (e) as Bank considers appropriate in exercising remedies under the Loan Documents; and (f) to
third-party service providers of Bank so long as such service providers have executed a confidentiality agreement with Bank with terms no less
restrictive  than  those  contained  herein.    Confidential  information  does  not  include  information  that  is  either:  (i)  in  the  public  domain  or  in
Bank’s possession when disclosed to Bank, or becomes part of the public domain (other than as a result of its disclosure by Bank in violation of
this Agreement) after disclosure to Bank; or (ii) disclosed to Bank by a third party, if Bank does not know that the third party is prohibited from
disclosing the information.

Bank Entities may use anonymous forms of confidential information for aggregate datasets, for analyses or reporting, and for any
other uses not expressly prohibited in writing by Borrower. The provisions of the immediately preceding sentence shall survive termination of
this Agreement.

Attorneys’ Fees, Costs and Expenses.  In any action or proceeding between Borrower and Bank arising
out  of  or  relating  to  the  Loan  Documents,  the  prevailing  party  shall  be  entitled  to  recover  its  reasonable  attorneys’  fees  and  other  costs  and
expenses incurred, in addition to any other relief to which it may be entitled.

12.10

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12.11

Electronic  Execution  of  Documents.    The  words  “execution,”  “signed,”  “signature”  and  words  of  like
import in any Loan Document shall be deemed to include electronic signatures or the keeping of records in electronic form, each of which shall
be of the same legal effect, validity and enforceability as a manually executed signature or the use of a paper-based recordkeeping systems, as
the  case  may  be,  to  the  extent  and  as  provided  for  in  any  applicable  law,  including,  without  limitation,  any  state  law  based  on  the  Uniform
Electronic Transactions Act.

interpretation of this Agreement.

12.12

Captions.    The  headings  used  in  this  Agreement  are  for  convenience  only  and  shall  not  affect  the

Construction  of  Agreement.    The  parties  mutually  acknowledge  that  they  and  their  attorneys  have
participated in the preparation and negotiation of this Agreement.  In cases of uncertainty this Agreement shall be construed without regard to
which of the parties caused the uncertainty to exist.

12.13

Relationship.  The relationship of the parties to this Agreement is determined solely by the provisions of
this Agreement.  The parties do not intend to create any agency, partnership, joint venture, trust, fiduciary or other relationship with duties or
incidents different from those of parties to an arm’s-length contract.

12.14

12.15

Third  Parties.    Nothing  in  this  Agreement,  whether  express  or  implied,  is  intended  to:  (a)  confer  any
benefits,  rights  or  remedies  under  or  by  reason  of  this  Agreement  on  any  persons  other  than  the  express  parties  to  it  and  their  respective
permitted successors and assigns; (b) relieve or discharge the obligation or liability of any person not an express party to this Agreement; or (c)
give any person not an express party to this Agreement any right of subrogation or action against any party to this Agreement.

13.

DEFINITIONS

Definitions.  As used in the Loan Documents, the word “shall” is mandatory, the word “may” is permissive,
the word “or” is not exclusive, the words “includes” and “including” are not limiting, the singular includes the plural, and numbers denoting
amounts that are set off in brackets are negative.  As used in this Agreement, the following capitalized terms have the following meanings:

13.1

includes, without limitation, all accounts receivable and other sums owing to Borrower.

“Account”  is  any  “account”  as  defined  in  the  Code  with  such  additions  to  such  term  as  may  hereafter  be  made,  and

made.

“Account Debtor” is any “account debtor” as defined in the Code with such additions to such term as may hereafter be

“Affiliate” is, with respect to any Person, each other Person that owns or controls directly or indirectly the Person, any
Person  that  controls  or  is  controlled  by  or  is  under  common  control  with  the  Person,  and  each  of  that  Person’s  senior  executive  officers,
directors, partners and, for any Person that is a limited liability company, that Person’s managers and members.

“Agreement” is defined in the preamble hereof.

“Bank” is defined in the preamble hereof.

“Bank Entities” is defined in Section 12.9.

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“Bank  Expenses”  are  all  audit  fees  and  expenses,  costs,  and  expenses  (including  reasonable  attorneys’  fees  and
expenses)  for  preparing,  amending,  negotiating,  administering,  defending  and  enforcing  the  Loan  Documents  (including,  without  limitation,
those incurred in connection with appeals or Insolvency Proceedings) or otherwise incurred with respect to Borrower.

“Bank  Services”  are  any  products,  credit  services,  and/or  financial  accommodations  previously,  now,  or  hereafter
provided  to  Borrower  or  any  of  its  Subsidiaries  by  Bank  or  any  Bank  Affiliate,  including,  without  limitation,  any  letters  of  credit,  cash
management  services  (including,  without  limitation,  merchant  services,  direct  deposit  of  payroll,  business  credit  cards,  and  check  cashing
services), interest rate swap arrangements, and foreign exchange services as any such products or services may be identified in Bank’s various
agreements related thereto (each, a “Bank Services Agreement”).

“Borrower” is defined in the preamble hereof.

“Borrower’s  Books”  are  all  Borrower’s  books  and  records  including  ledgers,  federal  and  state  tax  returns,  records
regarding Borrower’s assets or liabilities, the Collateral, business operations or financial condition, and all computer programs or storage or any
equipment containing such information.

Exhibit D.

“Borrowing Resolutions” are, with respect to any Person, those resolutions substantially in the form attached hereto as

“Business Day” is any day that is not a Saturday, Sunday or a day on which Bank is closed.

“Cash Equivalents” means (a) marketable direct obligations issued or unconditionally guaranteed by the United States
or any agency or any State thereof having maturities of not more than one (1) year from the date of acquisition; (b) commercial paper maturing
no more than one (1) year after its creation and having the highest rating from either Standard & Poor’s Ratings Group or Moody’s Investors
Service, Inc.; and (c) Bank’s certificates of deposit issued maturing no more than one (1) year after issue.

“Change in Control” means (a) at any time, any “person” or “group” (as such terms are used in Sections 13(d) and 14(d)
of  the  Securities  Exchange  Act  of  1934,  as  amended  (the  “Exchange  Act”)),  (other  than  Alpine  Immunosciences,  L.P.,  OrbiMed  Private
Investments VI, LP, and Frazier Life Sciences VIII, L.P) shall become, or obtain rights (whether by means or warrants, options or otherwise) to
become, the “beneficial owner” (as defined in Rules 13(d)-3 and 13(d)-5 under the Exchange Act), directly or indirectly, of twenty-five percent
(25%) or more of the ordinary voting power for the election of directors of Borrower (determined on a fully diluted basis) other than by the sale
of Borrower’s equity securities in a public offering or to venture capital, private equity, strategic, family office, or other similar investors in a
bona  fide  equity  financing  so  long  as  Borrower  identifies  to  Bank  the  investors  at  least  seven  (7)  Business  Days  prior  to  the  closing  of  the
transaction  and  provides  to  Bank  a  description  of  the  material  terms  of  the  transaction;  (b)  during  any  period  of  twelve  (12)  consecutive
months,  a  majority  of  the  members  of  the  board  of  directors  or  other  equivalent  governing  body  of  Borrower  cease  to  be  composed  of
individuals (i) who were members of that board or equivalent governing body on the first day of such period, (ii) whose election or nomination
to that board or equivalent governing body was approved by individuals referred to in clause (i) above constituting at the time of such election
or  nomination  at  least  a  majority  of  that  board  or  equivalent  governing  body  or  (iii)  whose  election  or  nomination  to  that  board  or  other
equivalent  governing  body  was  approved  by  individuals  referred  to  in  clauses  (i)  and  (ii)  above  constituting  at  the  time  of  such  election  or
nomination at least a majority of that board or equivalent governing body; (c) Alpine Immunosciences, L.P., OrbiMed Private Investments VI,
LP, and Frazier Life Sciences VIII, L.P cease to collectively own at least 50% of the voting securities of Borrower; or (d) at any time, Borrower
shall cease to own and control, of record and beneficially, directly

-24-

 
 
or indirectly, one hundred percent (100%) of each class of outstanding capital stock of each subsidiary of Borrower free and clear of all Liens
(except Liens created by this Agreement).

“Claims” is defined in Section 12.3.

“Code” is the Uniform Commercial Code, as the same may, from time to time, be enacted and in effect in the State of
California;  provided,  that,  to  the  extent  that  the  Code  is  used  to  define  any  term  herein  or  in  any  Loan  Document  and  such  term  is  defined
differently in different Articles or Divisions of the Code, the definition of such term contained in Article or Division 9 shall govern; provided
further, that in the event that, by reason of mandatory provisions of law, any or all of the attachment, perfection, or priority of, or remedies with
respect  to,  Bank’s  Lien  on  any  Collateral  is  governed  by  the  Uniform  Commercial  Code  in  effect  in  a  jurisdiction  other  than  the  State  of
California, the term “Code” shall mean the Uniform Commercial Code as enacted and in effect in such other jurisdiction solely for purposes of
the provisions thereof relating to such attachment, perfection, priority, or remedies and for purposes of definitions relating to such provisions.

“Collateral” is any and all properties, rights and assets of Borrower described on Exhibit A.

“Collateral Account” is any Deposit Account, Securities Account, or Commodity Account.

hereafter be made.

“Commodity Account”  is  any  “commodity  account”  as  defined  in  the  Code  with  such  additions  to  such  term  as  may

“Compliance Certificate” is that certain certificate in the form attached hereto as Exhibit B.

“Contingent Obligation” is, for any Person, any direct or indirect liability, contingent or not, of that Person for (a) any
indebtedness, lease, dividend, letter of credit or other obligation of another such as an obligation, in each case, directly or indirectly guaranteed,
endorsed, co-made, discounted or sold with recourse by that Person, or for which that Person is directly or indirectly liable; (b) any obligations
for  undrawn  letters  of  credit  for  the  account  of  that  Person;  and  (c)  all  obligations  from  any  interest  rate,  currency  or  commodity  swap
agreement, interest rate cap or collar agreement, or other agreement or arrangement designated to protect a Person against fluctuation in interest
rates,  currency  exchange  rates  or  commodity  prices;  but  “Contingent  Obligation”  does  not  include  endorsements  in  the  ordinary  course  of
business.    The  amount  of  a  Contingent  Obligation  is  the  stated  or  determined  amount  of  the  primary  obligation  for  which  the  Contingent
Obligation is made or, if not determinable, the maximum reasonably anticipated liability for it determined by the Person in good faith; but the
amount may not exceed the maximum of the obligations under any guarantee or other support arrangement.

“Control  Agreement”  is  any  control  agreement  entered  into  among  the  depository  institution  at  which  Borrower
maintains a Deposit Account or the securities intermediary or commodity intermediary at which Borrower maintains a Securities Account or a
Commodity  Account,  Borrower,  and  Bank  pursuant  to  which  Bank  obtains  control  (within  the  meaning  of  the  Code)  over  such  Deposit
Account, Securities Account, or Commodity Account.

“Conversion Date” is defined in Section 2.1.1(b)(ii).

-25-

 
 
work of authorship and derivative work thereof, whether published or unpublished and whether or not the same also constitutes a trade secret.

“Copyrights” are any and all copyright rights, copyright applications, copyright registrations and like protections in each

“Credit Extension” is any Term Loan Advance or any other extension of credit by Bank for Borrower’s benefit.

“Default Rate” is defined in Section 2.2(b).

made.

“Deposit Account” is any “deposit account” as defined in the Code with such additions to such term as may hereafter be

maintained by Borrower with Bank.

“Designated  Deposit  Account”  is  the  multicurrency  account  denominated  in  Dollars,  account  number  *******___,

“Dollar Equivalent” is, at any time, (a) with respect to any amount denominated in Dollars, such amount, and (b) with
respect to any amount denominated in a Foreign Currency, the equivalent amount therefor in Dollars as determined by Bank at such time on the
basis of the then-prevailing rate of exchange in San Francisco, California, for sales of the Foreign Currency for transfer to the country issuing
such Foreign Currency.

“Dollars,” “dollars” or use of the sign “$” means only lawful money of the United States and not any other currency,
regardless of whether that currency uses the “$” sign to denote its currency or may be readily converted into lawful money of the United States.

“Effective Date” is defined in the preamble hereof.

“Equipment” is all “equipment” as defined in the Code with such additions to such term as may hereafter be made, and
includes  without  limitation  all  machinery,  fixtures,  goods,  vehicles  (including  motor  vehicles  and  trailers),  and  any  interest  in  any  of  the
foregoing.

“ERISA” is the Employee Retirement Income Security Act of 1974, and its regulations.

“Event of Default” is defined in Section 8.

“Exchange Act” is the Securities Exchange Act of 1934, as amended.

“Final Payment” is a payment (in addition to and not a substitution for the regular monthly payments of principal and
accrued interest) due on the dates set forth in Section 2.3(b), equal to the Loan Amount of the applicable Term Loan Advance, multiplied by the
Final Payment Percentage.

“Final Payment Percentage” is, for each Term Loan Advance, equal to seven and one-half of one percent (7.50%).

“Financing” means a new bona fide second tranche of equity financing (closed after the Effective Date) with investors
and on terms satisfactory to Bank in its sole discretion, including but not limited to the “Second Tranche Closing” as defined in that certain
Alpine Immune Sciences, Inc., Series A Preferred Stock Purchase Agreement dated June 10, 2016.

“Foreign Currency” means lawful money of a country other than the United States.

-26-

 
 
Business Day.

“Funding Date”  is  any  date  on  which  a  Credit  Extension  is  made  to  or  for  the  account  of  Borrower  which  shall  be  a

purchase from or sell to Bank a specific amount of Foreign Currency on a specified date.

“FX Contract” is any foreign exchange contract by and between Borrower and Bank under which Borrower commits to

“GAAP”  is  generally  accepted  accounting  principles  set  forth  in  the  opinions  and  pronouncements  of  the  Accounting
Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting
Standards Board or in such other statements by such other Person as may be approved by a significant segment of the accounting profession,
which are applicable to the circumstances as of the date of determination.

“General Intangibles” is all “general intangibles” as defined in the Code in effect on the date hereof with such additions
to such term as may hereafter be made, and includes without limitation, all Intellectual Property, claims, income and other tax refunds, security
and other deposits, payment intangibles, contract rights, options to purchase or sell real or personal property, rights in all litigation presently or
hereafter  pending  (whether  in  contract,  tort  or  otherwise),  insurance  policies  (including  without  limitation  key  man,  property  damage,  and
business interruption insurance), payments of insurance and rights to payment of any kind.

“Good Faith Deposit” is defined in Section 2.3(a).

accreditation, registration, filing or notice, of, issued by, from or to, or other act by or in respect of, any Governmental Authority.

“Governmental  Approval”  is  any  consent,  authorization,  approval,  order,  license,  franchise,  permit,  certificate,

“Governmental Authority”  is  any  nation  or  government,  any  state  or  other  political  subdivision  thereof,  any  agency,
authority,  instrumentality,  regulatory  body,  court,  central  bank  or  other  entity  exercising  executive,  legislative,  judicial,  taxing,  regulatory  or
administrative functions of or pertaining to government, any securities exchange and any self-regulatory organization.

restated, modified or otherwise supplemented.

“Guaranty”  is  any  guarantee  of  all  or  any  part  of  the  Obligations,  as  the  same  may  from  time  to  time  be  amended,

“Indebtedness”  is  (a)  indebtedness  for  borrowed  money  or  the  deferred  price  of  property  or  services,  such  as
reimbursement  and  other  obligations  for  surety  bonds  and  letters  of  credit,  (b)  obligations  evidenced  by  notes,  bonds,  debentures  or  similar
instruments, (c) capital lease obligations, and (d) Contingent Obligations.

“Indemnified Person” is defined in Section 12.3.

“Insolvency Proceeding” is any proceeding by or against any Person under the United States Bankruptcy Code, or any
other bankruptcy or insolvency law, including assignments for the benefit of creditors, compositions, extensions generally with its creditors, or
proceedings seeking reorganization, arrangement, or other relief.

-27-

 
 
“Intellectual Property”  means,  with  respect  to  any  Person,  all  of  such  Person’s  right,  title,  and  interest  in  and  to  the

following:

(a)

(b)

its Copyrights, Trademarks and Patents;

any  and  all  trade  secrets  and  trade  secret  rights,  including,  without  limitation,  any  rights  to  unpatented

inventions, know-how, operating manuals;

(c)

(d)

any and all source code;

any and all design rights which may be available to such Person;

any and all claims for damages by way of past, present and future infringement of any of the foregoing, with
the right, but not the obligation, to sue for and collect such damages for said use or infringement of the Intellectual Property rights identified
above; and

(e)

(f)

all amendments, renewals and extensions of any of the Copyrights, Trademarks or Patents.

“Interest-Only Period” means, for each Term Loan Advance, the period commencing on the first (1st) calendar day of
the first (1st) month following the month in which the Funding Date of such Term Loan Advance occurs and continuing through June 30, 2018.

“Inventory” is all “inventory” as defined in the Code in effect on the date hereof with such additions to such term as may
hereafter  be  made,  and  includes  without  limitation  all  merchandise,  raw  materials,  parts,  supplies,  packing  and  shipping  materials,  work  in
process  and  finished  products,  including  without  limitation  such  inventory  as  is  temporarily  out  of  Borrower’s  custody  or  possession  or  in
transit and including any returned goods and any documents of title representing any of the above.

and any loan, advance or capital contribution to any Person.

“Investment” is any beneficial ownership interest in any Person (including stock, partnership interest or other securities),

application, guarantee, indemnity, or similar agreement.

“Letter of Credit” is a standby or commercial letter of credit issued by Bank upon request of Borrower based upon an

whether voluntarily incurred or arising by operation of law or otherwise against any property.

“Lien”  is  a  claim,  mortgage,  deed  of  trust,  levy,  charge,  pledge,  security  interest  or  other  encumbrance  of  any  kind,

“Loan Amount” in respect of each Term Loan Advance is the original principal amount of such Term Loan Advance.

“Loan  Documents”  are,  collectively,  this  Agreement  and  any  schedules,  exhibits,  certificates,  notices,  and  any  other
documents  related  to  this  Agreement,  the  Warrant,  any  Bank  Services  Agreement,  any  subordination  agreement,  any  note,  or  notes  or
guaranties executed by Borrower or any guarantor, and any other present or future agreement by Borrower and/or any guarantor with or for the
benefit of Bank in connection with this Agreement or Bank Services, all as amended, restated, or otherwise modified.

in the value of such Collateral; (b) a material adverse change in the

“Material Adverse Change” is (a) a material impairment in the perfection or priority of Bank’s Lien in the Collateral or

-28-

 
 
business,  operations,  or  condition  (financial  or  otherwise)  of  Borrower;  or  (c)  a  material  impairment  of  the  prospect  of  repayment  of  any
portion of the Obligations.

“Monthly Financial Statements” is defined in Section 6.2(a).

“Net  Proceeds”  means  the  gross  proceeds  received  by  Borrower  from  the  Financing,  less  reasonable  and  customary
closing costs (including, but not limited to, reasonable attorneys’ fees, brokers’ fees or commissions, investment bankers’ fees or commissions
and similar items) owed to any Person in an arm’s length transaction that are actually incurred in connection with the Financing.

“Obligations” are Borrower’s obligations to pay when due any debts, principal, interest, fees, Bank Expenses, and other
amounts Borrower owes Bank now or later, whether under this Agreement, the other Loan Documents (other than the Warrant), or otherwise,
including, without limitation, all obligations relating to letters of credit (including reimbursement obligations for drawn and undrawn letters of
credit), cash management services, and foreign exchange contracts, if any, and including interest accruing after Insolvency Proceedings begin
and debts, liabilities, or obligations of Borrower assigned to Bank, and to perform Borrower’s duties under the Loan Documents (other than the
Warrant).

“Operating Documents” are, for any Person, such Person’s formation documents, as certified by the Secretary of State
(or equivalent agency) of such Person’s jurisdiction of organization on a date that is no earlier than thirty (30) days prior to the Effective Date,
and, (a) if such Person is a corporation, its bylaws in current form, (b) if such Person is a limited liability company, its limited liability company
agreement  (or  similar  agreement),  and  (c)  if  such  Person  is  a  partnership,  its  partnership  agreement  (or  similar  agreement),  each  of  the
foregoing with all current amendments or modifications thereto.

divisions, continuations, renewals, reissues, extensions and continuations-in-part of the same.

“Patents”  means  all  patents,  patent  applications  and  like  protections  including  without  limitation  improvements,

“Payment/Advance Form” is that certain form attached hereto as Exhibit C.

“Perfection Certificate” is defined in Section 5.1.

“Permitted Indebtedness” is:

(a)

(b)

(c)

(d)

(e)

Borrower’s Indebtedness to Bank under this Agreement and the other Loan Documents;

Indebtedness existing on the Effective Date and shown on the Perfection Certificate;

Subordinated Debt;

unsecured Indebtedness to trade creditors incurred in the ordinary course of business;

Indebtedness  incurred  as  a  result  of  endorsing  negotiable  instruments  received  in  the  ordinary  course  of

business;

-29-

 
 
hereunder; and

(f)

Indebtedness  secured  by  Liens  permitted  under  clauses  (a)  and  (c)  of  the  definition  of  “Permitted  Liens”

extensions, refinancings, modifications, amendments and restatements of any items of Permitted Indebtedness
(a)  through  (f)  above,  provided  that  the  principal  amount  thereof  is  not  increased  or  the  terms  thereof  are  not  modified  to  impose  more
burdensome terms upon Borrower or its Subsidiary, as the case may be.

(g)

“Permitted Investments” are:

Perfection Certificate;

(a)

(b)

Investments  (including,  without  limitation,  Subsidiaries)  existing  on  the  Effective  Date  and  shown  on  the

Investments consisting of Cash Equivalents;

(c)
transactions in the ordinary course of Borrower;

Investments  consisting  of  the  endorsement  of  negotiable  instruments  for  deposit  or  collection  or  similar

(d)

(e)

Investments consisting of deposit accounts in which Bank has a perfected security interest;

Investments accepted in connection with Transfers permitted by Section 7.1;

Investments (i) by Borrower in Subsidiaries not to exceed Fifty Thousand Dollars ($50,000) in the aggregate
in any fiscal year and (ii) by Subsidiaries in other Subsidiaries not to exceed Fifty Thousand Dollars ($50,000) in the aggregate in any fiscal
year or in Borrower;

(f)

Investments  consisting  of  (i)  travel  advances  and  employee  relocation  loans  and  other  employee  loans  and
advances in the ordinary course of business, and (ii) loans to employees, officers or directors relating to the purchase of equity securities of
Borrower or its Subsidiaries pursuant to employee stock purchase plans or agreements approved by Borrower’s Board of Directors;

(g)

Investments  (including  debt  obligations)  received  in  connection  with  the  bankruptcy  or  reorganization  of
customers or suppliers and in settlement of delinquent obligations of, and other disputes with, customers or suppliers arising in the ordinary
course of business; and

(h)

Investments  consisting  of  notes  receivable  of,  or  prepaid  royalties  and  other  credit  extensions,  to  customers
and  suppliers  who  are  not  Affiliates,  in  the  ordinary  course  of  business;  provided  that  this  paragraph  (i)  shall  not  apply  to  Investments  of
Borrower in any Subsidiary.

(i)

“Permitted Liens” are:

and the other Loan Documents;

(a)

Liens existing on the Effective Date and shown on the Perfection Certificate or arising under this Agreement

Liens for taxes, fees, assessments or other government charges or levies, either (i) not due and payable or (ii)
being contested in good faith and for which Borrower maintains adequate reserves on its Books, provided that no notice of any such Lien has
been filed or recorded under the Internal Revenue Code of 1986, as amended, and the Treasury Regulations adopted thereunder;

(b)

-30-

 
 
purchase money Liens (i) on Equipment acquired or held by Borrower incurred for financing the acquisition of
the  Equipment  securing  no  more  than  Fifty  Thousand  Dollars  ($50,000)  in  the  aggregate  amount  outstanding,  or  (ii)  existing  on  Equipment
when acquired, if the Lien is confined to the property and improvements and the proceeds of the Equipment;

(c)

(d)

Liens  of  carriers,  warehousemen,  suppliers,  or  other  Persons  that  are  possessory  in  nature  arising  in  the
ordinary  course  of  business  so  long  as  such  Liens  attach  only  to  Inventory,  securing  liabilities  in  the  aggregate  amount  not  to  exceed  Fifty
Thousand Dollars ($50,000) and which are not delinquent or remain payable without penalty or which are being contested in good faith and by
appropriate proceedings which proceedings have the effect of preventing the forfeiture or sale of the property subject thereto;

and other like obligations incurred in the ordinary course of business (other than Liens imposed by ERISA);

(e)

Liens to secure payment of workers’ compensation, employment insurance, old-age pensions, social security

Liens incurred in the extension, renewal or refinancing of the indebtedness secured by Liens described in (a)
through (c), but any extension, renewal or replacement Lien must be limited to the property encumbered by the existing Lien and the principal
amount of the indebtedness may not increase;

(f)

(g)

leases or subleases of real property granted in the ordinary course of Borrower’s business (or, if referring to
another  Person,  in  the  ordinary  course  of  such  Person’s  business),  and  leases,  subleases,  non-exclusive  licenses  or  sublicenses  of  personal
property  (other  than  Intellectual  Property)  granted  in  the  ordinary  course  of  Borrower’s  business  (or,  if  referring  to  another  Person,  in  the
ordinary course of such Person’s business), if the leases, subleases, licenses and sublicenses do not prohibit granting Bank a security interest
therein;

(h)

non-exclusive licenses of Intellectual Property granted to third parties in the ordinary course of business, and
licenses of Intellectual Property that could not result in a legal transfer of title of the licensed property that may be exclusive in respects other
than granting rights to a specific geographical territory and that may be exclusive as to territory only as to discreet geographical areas outside of
the United States;

Default under Sections 8.4 and 8.7; and

(i)

Liens arising from attachments or judgments, orders, or decrees in circumstances not constituting an Event of

Liens  in  favor  of  other  financial  institutions  arising  in  connection  with  Borrower’s  deposit  and/or  securities
accounts  held  at  such  institutions,  provided  that  Bank  has  a  perfected  security  interest  in  the  amounts  held  in  such  deposit  and/or  securities
accounts.

(j)

“Person”  is  any  individual,  sole  proprietorship,  partnership,  limited  liability  company,  joint  venture,  company,  trust,
unincorporated  organization,  association,  corporation,  institution,  public  benefit  corporation,  firm,  joint  stock  company,  estate,  entity  or
government agency.

“Prime Rate” is the rate of interest per annum from time to time published in the money rates section of The Wall Street
Journal or any successor publication thereto as the “prime rate” then in effect; provided that, in the event such rate of interest is less than zero,
such rate shall be deemed to be zero for purposes of this Agreement; and provided further that if such rate of interest, as set forth from time to
time in the money rates section of The Wall Street Journal, becomes unavailable for any reason as determined by Bank, the “Prime Rate” shall
mean the rate of interest per annum announced by Bank as its

-31-

 
 
prime rate in effect at its principal office in the State of California (such Bank announced Prime Rate not being intended to be the lowest rate of
interest charged by Bank in connection with extensions of credit to debtors).

may hereafter be made.

“Registered Organization” is any “registered organization” as defined in the Code with such additions to such term as

“Requirement  of  Law”  is  as  to  any  Person,  the  organizational  or  governing  documents  of  such  Person,  and  any  law
(statutory  or  common),  treaty,  rule  or  regulation  or  determination  of  an  arbitrator  or  a  court  or  other  Governmental  Authority,  in  each  case
applicable to or binding upon such Person or any of its property or to which such Person or any of its property is subject.

Operations, and Controller of Borrower.

“Responsible Officer”  is  any  of  the  Chief  Executive  Officer,  President,  Chief  Financial  Officer,  Director  of  Business

“Restricted License” is any material license or other agreement with respect to which Borrower is the licensee (a) that
prohibits  or  otherwise  restricts  Borrower  from  granting  a  security  interest  in  Borrower’s  interest  in  such  license  or  agreement  or  any  other
property, or (b) for which a default under or termination of could interfere with the Bank’s right to sell any Collateral.

“SEC”  shall  mean  the  Securities  and  Exchange  Commission,  any  successor  thereto,  and  any  analogous  Governmental

Authority.

hereafter be made.

“Securities  Account”  is  any  “securities  account”  as  defined  in  the  Code  with  such  additions  to  such  term  as  may

“Subordinated  Debt”  is  indebtedness  incurred  by  Borrower  subordinated  to  all  of  Borrower’s  now  or  hereafter
indebtedness to Bank (pursuant to a subordination, intercreditor, or other similar agreement in form and substance satisfactory to Bank entered
into between Bank and the other creditor), on terms acceptable to Bank.

“Subsidiary” is, as to any Person, a corporation, partnership, limited liability company or other entity of which shares of
stock or other ownership interests having ordinary voting power (other than stock or such other ownership interests having such power only by
reason of the happening of a contingency) to elect a majority of the board of directors or other managers of such corporation, partnership or
other  entity  are  at  the  time  owned,  or  the  management  of  which  is  otherwise  controlled,  directly  or  indirectly  through  one  or  more
intermediaries, or both, by such Person. Unless the context otherwise requires, each reference to a Subsidiary herein shall be a reference to a
Subsidiary of Borrower.

“Term Loan Advance” is defined in Section 2.1.1(a).

“Term Loan Commitment” is Five Million Dollars ($5,000,000).

“Term Loan Maturity Date” is December 1, 2020.

Conversion Date.

“Term  Loan  Repayment  Period”  is  a  period  of  time  equal  to  thirty  (30)  consecutive  months  commencing  on  the

“Trademarks”  means  any  trademark  and  servicemark  rights,  whether  registered  or  not,  applications  to  register  and
registrations  of  the  same  and  like  protections,  and  the  entire  goodwill  of  the  business  of  Borrower  connected  with  and  symbolized  by  such
trademarks.

-32-

 
 
“Tranche One Commitment Termination Date” is June 30, 2017.

“Tranche One Term Loan Advance” is defined in Section 2.1.1(a).

“Tranche Two Commitment Termination Date” is December 31, 2017.

“Tranche  Two  Milestone”  means  Bank’s  receipt  of  evidence  satisfactory  to  Bank  in  its  sole  discretion  that  either  (a)
Borrower  has  received  aggregate  Net  Proceeds  of  at  least  Twenty  Million  Dollars  ($20,000,000)  or  (b)  Borrower  has  received  the  first
milestone payment from Kite Pharma in the amount of at least Twenty Million Dollars ($20,000,000).

“Tranche Two Term Loan Advance” is defined in Section 2.1.1(a).

“Transfer” is defined in Section 7.1.

Bank, as the same may be amended, modified, supplemented or restated from time to time.

“Warrant”  is  that  certain  Warrant  to  Purchase  Stock  dated  as  of  the  Effective  Date  executed  by  Borrower  in  favor  of

[Signature page follows]

-33-

 
 
 
 
 
IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed as of the Effective Date.

BORROWER:

ALPINE IMMUNE SCIENCES, INC.

By:

  /s/ Mitchell H. Gold, MD
  Name: Mitchell H. Gold, MD
  Title: Executive Chairman and CEO

BANK:

SILICON VALLEY BANK

By:

  /s/ Jackie Spencer
  Name: Jackie Spencer
  Title: Director

[Signature Page to Loan and Security Agreement]

 
 
 
   
 
   
 
 
 
   
 
   
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EXHIBIT A

COLLATERAL DESCRIPTION

The Collateral consists of all of Borrower’s right, title and interest in and to the following personal property:

All  goods,  Accounts  (including  health-care  receivables),  Equipment,  Inventory,  contract  rights  or  rights  to  payment  of  money,
leases,  license  agreements,  franchise  agreements,  General  Intangibles  (except  for  Intellectual  Property  as  provided  below),  commercial  tort
claims,  documents,  instruments  (including  any  promissory  notes),  chattel  paper  (whether  tangible  or  electronic),  cash,  deposit  accounts,
fixtures,  letters  of  credit  rights  (whether  or  not  the  letter  of  credit  is  evidenced  by  a  writing),  securities,  and  all  other  investment  property,
supporting obligations, and financial assets, whether now owned or hereafter acquired, wherever located; and

All Borrower’s Books relating to the foregoing, and any and all claims, rights and interests in any of the above and all substitutions
for, additions, attachments, accessories, accessions and improvements to and replacements, products, proceeds and insurance proceeds of any or
all of the foregoing.

Notwithstanding  the  foregoing,  the  Collateral  does  not  include  any  Intellectual  Property;  provided,  however,  the  Collateral  shall
include all Accounts and all proceeds of Intellectual Property.  If a judicial authority (including a U.S. Bankruptcy Court) would hold that a
security  interest  in  the  underlying  Intellectual  Property  is  necessary  to  have  a  security  interest  in  such  Accounts  and  such  property  that  are
proceeds of Intellectual Property, then the Collateral shall automatically, and effective as of the Effective Date, include the Intellectual Property
solely for the purpose and to the extent necessary to permit perfection of Bank’s security interest in such Accounts and such other property of
Borrower that are proceeds of the Intellectual Property.

Pursuant  to  the  terms  of  a  certain  negative  pledge  arrangement  with  Bank,  Borrower  has  agreed  not  to  encumber  any  of  its
Intellectual Property without Bank’s prior written consent; provided, however, that nothing shall prohibit or impair Borrower’s ability to license
its  Intellectual  Property,  whether  on  an  exclusive  or  non-exclusive  basis,  in  conjunction  with  third-party  business  development  transactions
intended to generate royalties or other revenues for Borrower.

 
 
 
EXHIBIT B

COMPLIANCE CERTIFICATE

TO:

SILICON VALLEY BANK

Date:

FROM:

ALPINE IMMUNE SCIENCES, INC.

The  undersigned  authorized  officer  of  ALPINE  IMMUNE  SCIENCES,  INC.,  a  Delaware  corporation  (“Borrower”),  certifies  that  under  the

terms and conditions of the Loan and Security Agreement between Borrower and Bank (the “Agreement”):

(1) Borrower is in complete compliance for the period ending ______________________ with all required covenants except as noted below; (2)
there are no Events of Default; (3) all representations and warranties in the Agreement are true and correct in all material respects on this date except as noted
below; provided, however, that such materiality qualifier shall not be applicable to any representations and warranties that already are qualified or modified
by materiality in the text thereof; and provided, further that those representations and warranties expressly referring to a specific date shall be true, accurate
and  complete  in  all  material  respects  as  of  such  date;  (4)  Borrower,  and  each  of  its  Subsidiaries,  has  timely  filed  all  required  tax  returns  and  reports,  and
Borrower has timely paid all foreign, federal, state and local taxes, assessments, deposits and contributions owed by Borrower except as otherwise permitted
pursuant to the terms of Section 5.8 of the Agreement; and (5) no Liens have been levied or claims made against Borrower or any of its Subsidiaries relating
to unpaid employee payroll or benefits of which Borrower has not previously provided written notification to Bank.

Attached are the required documents supporting the certification.  The undersigned certifies that these are prepared in accordance with GAAP
consistently  applied  from  one  period  to  the  next  except  as  explained  in  an  accompanying  letter  or  footnotes.    The  undersigned  acknowledges  that  no
borrowings  may  be  requested  at  any  time  or  date  of  determination  that  Borrower  is  not  in  compliance  with  any  of  the  terms  of  the  Agreement,  and  that
compliance is determined not just at the date this certificate is delivered.  Capitalized terms used but not otherwise defined herein shall have the meanings
given them in the Agreement.

Please indicate compliance status by circling Yes/No under “Complies” column.

Reporting Covenants

Monthly financial statements + 
Compliance Certificate (“CC”)
Annual financial statement + CC

Annual budget and board-approved projections
10-Q, 10-K and 8-K

*commencing with 2017 fiscal year of Borrower.

Other Matters

Required

Monthly within 30 days

(a) if Board requires audited financial statement, FYE
within 180 days (CPA Audited) and (b) at all other
times, FYE within 60 days (company-prepared)
FYE within 90 days*
Within 5 days after filing with SEC

Complies

Yes     No

Yes     No

Yes     No
Yes     No

Have there been any amendments of or other changes to the capitalization table of Borrower and to the Operating Documents of
Borrower or any of its Subsidiaries (other than the issuance of stock option grants under Borrower’s 2016 Stock Plan)? If yes,
provide copies of any such amendments or changes with this Compliance Certificate.

Yes

No

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The following are the exceptions with respect to the certification above: (If no exceptions exist, state “No exceptions to note.”)

ALPINE IMMUNE SCIENCES, INC.

By:

Name:

Title:

BANK USE ONLY

Received by:

Date:

Verified:

Date:

AUTHORIZED SIGNER

AUTHORIZED SIGNER

Compliance Status:

Yes

No

 
 
 
 
 
 
 
   
 
 
   
   
 
   
 
   
 
 
 
 
   
 
 
   
   
 
 
 
   
 
 
   
   
 
 
 
   
 
 
 
 
   
 
 
 
   
 
 
 
 
 
   
 
 
 
EXHIBIT C

LOAN PAYMENT/ADVANCE REQUEST FORM

Deadline For Same Day Processing Is Noon Pacific Time

Date:

ALPINE IMMUNE SCIENCES, INC.
To Account #

(Deposit Account #)

(Loan Account #)

and/or Interest $

Phone Number:

Fax To:

LOAN PAYMENT:

From Account #

Principal $

Authorized Signature:
Print Name/Title:

LOAN ADVANCE:

Complete Outgoing Wire Request section below if all or a portion of the funds from this Credit Extension are for an outgoing wire.

From Account #

To Account #

(Loan Account #)

(Deposit Account #)

Amount of Credit Extension $

All Borrower’s representations and warranties in the Loan and Security Agreement are true, correct and complete in all material respects on the date of the request for a Credit Extension ;
provided, however, that such materiality qualifier shall not be applicable to any representations and warranties that already are qualified or modified by materiality in the text thereof; and
provided, further that those representations and warranties expressly referring to a specific date shall be true, accurate and complete in all material respects as of such date:

Authorized Signature:
Print Name/Title:

Phone Number:

OUTGOING WIRE REQUEST:
Complete only if all or a portion of funds from the Credit Extension above is to be wired.
Deadline for same day processing is noon, Pacific Time

Beneficiary Name:
Beneficiary Bank:
City and State:

Beneficiary Bank Transit (ABA)#:

Intermediary Bank:
For Further Credit to:

  Amount of wire: $
  Account Number:

Beneficiary Bank Code (Swift, Sort, Chip, etc.):

(For International Wire Only)

Transit (ABA) #:

Special Instructions:
By signing below, I (we) acknowledge and agree that my (our) funds transfer request shall be processed in accordance with and subject to the terms and conditions set forth in the agreement(s)
covering funds transfer service(s), which agreement(s) were previously received and executed by me (us).

Authorized Signature:

Print Name/Title:

Telephone #:

2nd Signature (if required):

Print Name/Title:

Telephone:

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EXHIBIT D

FORM OF BORROWING RESOLUTIONS

[See Attached]

 
 
CORPORATE BORROWING CERTIFICATE

BORROWER:
BANK:

ALPINE IMMUNE SCIENCES, INC.
SILICON VALLEY BANK

I hereby certify as follows, as of the date set forth above:

DATE:

DECEMBER ___, 2016

1.

2.

I am the Secretary, Assistant Secretary or other officer of Borrower. My title is as set forth below.

Borrower’s exact legal name is set forth above. Borrower is a corporation existing under the laws of the State of Delaware.

Attached hereto are true, correct and complete copies of Borrower’s Articles/Certificate of Incorporation (including amendments), as
3.
filed with the Secretary of State of the state in which Borrower is incorporated as set forth above. Such Articles/Certificate of Incorporation
have not been amended, annulled, rescinded, revoked or supplemented, and remain in full force and effect as of the date hereof.

The following resolutions were duly and validly adopted by Borrower’s Board of Directors at a duly held meeting of such directors
4.
(or pursuant to a unanimous written consent or other authorized corporate action). Such resolutions are in full force and effect as of the date
hereof and have not been in any way modified, repealed, rescinded, amended or revoked, and Silicon Valley Bank (“Bank”) may rely on them
until Bank receives written notice of revocation from Borrower.

RESOLVED, that any one of the following officers or employees of Borrower, whose names, titles and signatures are below, may act
on behalf of Borrower:

Name

Title

Signature

Authorized to
Add or Remove
Signatories

☐

☐

☐

☐

RESOLVED FURTHER, that any one of the persons designated above with a checked box beside his or her name may, from time to
time, add or remove any individuals to and from the above list of persons authorized to act on behalf of Borrower.

RESOLVED FURTHER, that such individuals may, on behalf of Borrower:

Borrow Money.  Borrow money from Bank.
Execute Loan Documents.  Execute any loan documents Bank requires.
Grant Security.  Grant Bank a security interest in any of Borrower’s assets.
Negotiate Items.  Negotiate or discount all drafts, trade acceptances, promissory notes, or other indebtedness in which
Borrower has an interest and receive cash or otherwise use the proceeds.
Apply for Letters of Credit.  Apply for letters of credit from Bank.
Enter Derivative Transactions.  Execute spot or forward foreign exchange contracts, interest rate swap agreements, or
other derivative transactions.
Issue Warrants.  Issue warrants for Borrower’s capital stock.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Further  Acts.    Designate  other  individuals  to  request  advances,  pay  fees  and  costs  and  execute  other  documents  or
agreements (including documents or agreement that waive Borrower’s right to a jury trial) they believe to be necessary to
effect these resolutions.

RESOLVED FURTHER, that all acts authorized by the above resolutions and any prior acts relating thereto are ratified.

5.

The persons listed above are Borrower’s officers or employees with their titles and signatures shown next to their names.

By:

  Name:
  Title:

***  If  the  Secretary,  Assistant  Secretary  or  other  certifying  officer  executing  above  is  designated  by  the  resolutions  set  forth  in
paragraph  4  as  one  of  the  authorized  signing  officers,  this  Certificate  must  also  be  signed  by  a  second  authorized  officer  or  director  of
Borrower.

I, the _______________________ of Borrower, hereby certify as to paragraphs 1 through 5 above, as of the date set forth above.

By:

  Name:
  Title:

 
 
   
 
 
 
 
   
 
 
 
 
EMPLOYMENT AGREEMENT

Exhibit 10.32

This  Employment  Agreement  (“Agreement”)  is  entered  into  as  of  March  14,  2017,  by  and  between  Alpine  Immune
Sciences, Inc., a Delaware corporation (“Company”), and Dr. Mitchell H. Gold, an individual (“Executive”). Each of Company and
Executive may be referred to individually as a “party” or collectively as the “parties.”

WITNESSETH:

WHEREAS, Executive has consistently served the Company as its Executive Chairman since January 16, 2015;

WHEREAS,  Executive  began  serving  the  Company  as  acting  Chief  Executive  Officer  on  June  29,  2016  on  what  was
initially anticipated to be an interim basis; however, the parties now wish to extend Executive’s service as Chief Executive Officer
of the Company and enter into this Agreement in order to set forth the terms and conditions under which the Executive shall be
employed by Company.

NOW,  THEREFORE,  for  and  in  consideration  of  the  mutual  promises,  covenants  and  obligations  contained  herein,

AGREEMENT:

Company and Executive agree as follows:

ARTICLE 1

EMPLOYMENT AND DUTIES

1.1

Employment; Effective Date. Executive shall continue to be employed by the Company throughout the Term
(as defined below). Effective as of January 20, 2017 (the “Effective Date”), and continuing until the time set forth in Article 2 of this
Agreement, Executive’s employment by Company shall be subject to the terms and conditions of this Agreement.

1.2

Position. From and after the Effective Date, Company shall employ Executive as the Executive Chairman and

Chief Executive Officer of the Company, initially reporting to the Company’s board of directors (the “Board”).

1.3

Duties  and  Services.  From  and  after  the  Effective  Date,  executive  agrees  to  serve  the  Company  as  the
Executive Chairman and Chief Executive Officer of the Company and to perform diligently and to the best of his abilities the duties
and services appertaining to such offices, as well as such additional duties and services appropriate to such offices which the parties
mutually  may  agree  upon  from  time  to  time.  Executive’s  employment  shall  also  be  subject  to  the  policies  maintained  and
established  by  Company  that  are  of  general  applicability  to  Company’s  executive  employees,  as  such  policies  may  be  amended
from time to time.

1.4

Other Interests. Executive agrees, during the period of his employment by Company, to devote substantially
all of his business time, energy and best efforts to the business and affairs of Company and its affiliates and not to engage, directly
or indirectly, in any other business or businesses, whether or not similar to that of the Company, except with the consent of

1

 
 
the Board, which consent shall not be unreasonably withheld. The foregoing notwithstanding, the parties recognize and agree that
Executive  may  engage  in  charitable  and  civic  pursuits  without  the  consent  of  the  Board,  as  long  as  Executive  is  not  actively
involved  in  the  operation  of  such  businesses  and  such  pursuits  do  not  conflict  with  the  business  and  affairs  of  Company  or  its
affiliates or interfere with Executive’s performance of his duties hereunder, which shall be in the determination of the Board whose
approval shall not be unreasonably withheld.

1.5

Duty of Loyalty. Executive acknowledges and agrees that Executive owes a fiduciary duty of loyalty to act at
all  times  in  the  best  interests  of  Company.  In  keeping  with  such  duty,  Executive  shall  make  full  disclosure  to  Company  of  all
business  opportunities  pertaining  to  Company’s  business  and  shall  not  appropriate  for  Executive’s  own  benefit  business
opportunities concerning Company’s business.

ARTICLE 2

TERM AND TERMINATION OF EMPLOYMENT

2.1

Term.  The  initial  term  of  employment  under  this  Agreement  (the  “Initial  Term”)  shall  be  for  the  period
beginning  on  the  Effective  Date  and  ending  on  the  third  (3rd)  anniversary  of  the  Effective  Date,  unless  earlier  terminated  as
provided  in  paragraph  2.2.  The  employment  term  hereunder  shall  automatically  be  extended  for  successive  one  (1)-year  periods
commencing with the third (3rd) anniversary of the Effective Date (“Extension Terms” and, collectively with the Initial Term, the
“Term”) unless earlier terminated in accordance with this Agreement.

2.2

Company’s Right to Terminate. Notwithstanding the provisions of paragraph 2.1, Company shall have the

right to terminate Executive’s employment under this Agreement for any of the following reasons:

(i)

upon Executive’s death;

(ii)

upon  Executive’s  disability,  which  shall  mean  Executive’s  becoming  incapacitated  by  accident,
sickness,  or  other  circumstances  which  renders  him  mentally  or  physically  incapable  of  performing  the  duties  and
services required of him hereunder for ninety (90) or more days (whether or not consecutive) out of any consecutive one
hundred eighty (180)-day period, unless any of the days would constitute leave under the Family and Medical Leave Act;

(iii)

for “Cause,” which shall mean Executive has (A) engaged in gross negligence, gross incompetence or
willful  misconduct  in  the  performance  of  the  duties  required  of  him  hereunder;  (B)  refused  without  proper  reason  to
perform  the  reasonable  and  lawful  duties  and  reasonable  and  lawful  responsibilities  required  of  him  hereunder  causing
material injury to the Company or its affiliates (monetarily or otherwise), and failed to cure such breach (in the event that
such breach is capable of being cured) within thirty (30) days following written receipt of notice from the Company setting
forth in reasonable detail the nature of such breach; (C) materially breached any provision of this Agreement and failed to
cure such breach (in the event that such breach is capable of being cured) within thirty (30) days following receipt of notice
from  the  Company  setting  forth  in  reasonable  detail  the  nature  of  such  breach;  (D)  willfully  engaged  in  conduct  that  is
materially injurious to the Company or its affiliates (monetarily or otherwise); (E) committed an act of fraud,

2

 
 
embezzlement or willful breach of fiduciary duty to the Company or an affiliate (including the unauthorized disclosure of
confidential or proprietary material information of the Company or an affiliate); or (F) been convicted of (or pleaded no
contest to) a crime involving fraud, dishonesty or moral turpitude or any felony; or

(iv)

at any time for any other reason, or for no reason whatsoever, in the sole discretion of the Board.

2.3

Executive’s Right to Terminate. Notwithstanding the provisions of paragraph 2.1, Executive shall have the

right to terminate his employment under this Agreement for any of the following reasons:

(i)

for “Good Reason,” which shall mean, in connection with or based upon, without Executive’s consent,
(A)  a  material  diminution  in  Executive’s  Base  Salary  (as  defined  below),  other  than  in  connection  with  an  across  the
board  salary  reduction  or  deferral  that  applies  proportionately  to  all  employees  of  the  Company  in  conjunction  with  a
capital shortfall; (B) a material diminution in Executive’s responsibilities, duties or authority, including a diminution in
Executive’s job title or reporting relationship; or (C) a material breach by the Company of any material provision of this
Agreement; or

(ii)

at any time for any other reason, or for no reason whatsoever, in the sole discretion of Executive.

2.4

Notice of Termination. If the Company desires to terminate Executive’s employment hereunder at any time it
shall  do  so  by  giving  a  thirty  (30)-day  written  notice  to  Executive  that  it  has  elected  to  terminate  Executive’s  employment
hereunder and stating the effective date and reason for such termination, provided, however, that that no such action shall alter or
amend any other provisions hereof or rights arising hereunder; and provided, further, however, that the Company may terminate
Executive’s employment relationship with the Company immediately upon written notice to Executive in the event the Company
terminates  Executive’s  employment  for  Cause  and  no  cure  period  applies.  If  Executive  desires  to  terminate  his  employment
hereunder at any time he shall do so by giving a thirty (30)-day written notice to the Company that he has elected to terminate his
employment hereunder and stating the effective date and reason for such termination, provided, however that no such action shall
alter  or  amend  any  other  provisions  hereof  or  rights  arising  hereunder.  In  the  case  of  any  notice  by  Executive  of  his  intent  to
terminate  his  employment  hereunder  for  Good  Reason,  Executive  shall  provide  Company  with  notice  of  the  existence  of  the
condition(s) constituting the Good Reason within thirty (30) days after the initial existence of such condition(s) and the Company
shall have thirty (30) days following Executive’s provision of such notice to remedy such condition(s). If the Company remedies
the  condition(s)  constituting  the  Good  Reason  within  such  thirty  (30)-day  period,  then  Executive’s  employment  hereunder  shall
continue and his notice of termination shall become void and of no further effect. If the Company does not remedy the condition(s)
constituting the Good Reason within such thirty (30)-day period, Executive’s employment with the Company shall terminate on the
date that is thirty-one (31) days following the date of Executive’s notice of termination and Executive shall be entitled to receive
the payments and benefits described in paragraph 4.3.

3

 
 
2.5

Deemed Resignations. Unless otherwise agreed and approved by the Board, any termination of Executive’s
employment shall constitute an automatic resignation of Executive as an officer of the Company and each affiliate of the Company,
and if applicable, an automatic resignation of Executive from the Board in his capacity as the “CEO Director.”

ARTICLE 3

COMPENSATION AND BENEFITS

3.1

Base  Salary.  During  the  Term,  the  Executive  shall  receive  an  initial  base  salary  at  a  rate  of  U.S.  Three
Hundred  Thousand  Dollars  (U.S.  $300,000)  per  annum,  and  such  salary  shall  be  paid  in  accordance  with  the  customary  payroll
practices of the Company, subject to annual review by the Board in its sole discretion (the “Base Salary”).

3.2

Initial  Stock  Option  Grant.  In  connection  with  the  execution  of  this  Agreement,  the  Company  will
recommend that the Board grant Executive an option (the “Initial Option”) to purchase up to six hundred five thousand (605,000)
shares  of  the  Company’s  Common  Stock  (the  “Common  Stock”),  subject  to  approval  of  the  Board  and  to  the  terms  of  the
Company’s 2015 Stock Plan and Stock Option Agreement, with an exercise price per share equal to the fair market value of the
Common Stock on the date of grant (as determined in good faith by the Board). Unless otherwise determined by the Board, the
Initial Option will vest as follows:

(i)

Vesting Schedule.  One-fourth  (1/4th)  of  the  Initial  Option  shall  vest  and  become  exercisable  on  the
twelve  (12)-month  anniversary  of  the  Effective  Date,  and  one  thirty-sixth  (1/36th)  of  the  remaining  number  of  shares
shall vest each month thereafter, such that one hundred percent (100%) of the shares subject to the Initial Option shall be
vested  and  exercisable  as  of  the  four  (4)  year  anniversary  of  the  Effective  Date.  Subject  to  the  provisions  of  Section
3.2(ii)  below,  continued  vesting  of  the  Initial  Option  will  stop  on  the  date  Executive’s  employment  or  consulting
relationship with the Company is terminated; provided, however, that if Executive continues to serve as the Executive
Chairman of the Board following such termination then vesting shall continue during the period of such continued Board
service.

(ii)

Double  Trigger  Acceleration.  In  the  event  of  a  Change  of  Control  (as  defined  below),  if:  (1)
Executive  is  terminated  without  Cause  by  the  Company  or  the  successor  corporation  or  a  parent  or  subsidiary  of  such
successor  corporation  of  the  Company  (the  “Successor  Corporation”)  within  the  ninety  (90)  day  period  prior  to  the
consummation  of  the  Change  of  Control  transaction  or  within  twelve  (12)  months  following  consummation  of  the
Change of Control transaction; or (2) Executive terminates his employment or consulting relationship with the Company
or  the  Successor  Corporation,  each  as  applicable,  for  Good  Reason  within  the  ninety  (90)  day  period  prior  to  the
consummation  of  the  Change  of  Control  transaction  or  within  twelve  (12)  months  following  consummation  of  the
transaction,  then  the  Initial  Option  or  any  cancelled,  assumed,  or  substituted  Option  held  by  Executive  in  lieu  of  the
Initial Option at the time of Executive’s termination shall become fully accelerated and fully vested immediately prior to
the effective date of termination. As used herein, “Change of Control” shall mean a sale of all or substantially all of the
Company’s  assets,  or  any  stock  sale,  merger,  or  consolidation  of  the  Company  with  or  into  another  corporation  or
business entity other than a stock sale, merger, or consolidation in which the holders of more than fifty percent

4

 
 
(50%) of the shares of capital stock of the Company outstanding immediately prior to such transaction continue to hold
(either by the voting securities remaining outstanding or by their being converted into voting securities of the surviving
entity) more than fifty percent (50%) of the total voting power represented by the voting securities of the Company, or
such  surviving  entity,  outstanding  immediately  after  such  transaction;  provided,  however,  that  a  bona  fide  equity
financing by the Company will not be deemed to be a Change of Control.

3.3

Additional Option Grant. In addition to the Initial Option, the Company will recommend that the Board grant
Executive  an  additional  option  at  the  Second  Tranche  Closing  (as  defined  in  that  certain  Alpine  Immune  Sciences,  Inc.  Series  A
Preferred  Stock  Purchase  Agreement  dated  as  of  June  10,  2016)  to  purchase  that  number  of  shares  of  Common  Stock  that,  when
accumulated with the Initial Option, will equal 5% of the Company’s fully-diluted capitalization, as measured immediately following
the Second Tranche Closing (the “Additional Option”). The Additional Option shall be subject to approval of the Board and to the
terms of the Company’s 2015 Stock Plan and Stock Option Agreement, with an exercise price per share equal to the fair market value
of the Common Stock on the date of grant (as determined in good faith by the Board). Unless otherwise determined by the Board, the
Additional Option will vest as follows:

(i)

Vesting Schedule. One-fourth (1/4th) of the Additional Option shall vest and become exercisable on
the twelve (12)-month anniversary of the Effective Date, and one thirty-sixth (1/36th) of the remaining number of shares
shall  vest  each  month  thereafter,  such  that  one  hundred  percent  (100%)  of  the  shares  subject  to  the  Additional  Option
shall  be  vested  and  exercisable  as  of  the  four  (4)  year  anniversary  of  the  Effective  Date.  Subject  to  the  provisions  of
Section  3.3(ii)  below,  continued  vesting  of  the  Additional  Option  will  stop  on  the  date  Executive’s  employment  or
consulting relationship with the Company is terminated; provided, however, that if Executive continues to serve as the
Executive  Chairman  of  the  Board  following  such  termination  then  vesting  shall  continue  during  the  period  of  such
continued Board service.

(ii)

Double  Trigger  Acceleration.  In  the  event  of  a  Change  of  Control  (as  defined  below),  if:  (1)
Executive is terminated without Cause by the Company or the Successor Corporation within the ninety (90) day period
prior to the consummation of the Change of Control transaction or within twelve (12) months following consummation of
the  Change  of  Control  transaction;  or  (2)  Executive  terminates  his  employment  or  consulting  relationship  with  the
Company or the Successor Corporation, each as applicable, for Good Reason within the ninety (90) day period prior to
the  consummation  of  the  Change  of  Control  transaction  or  within  twelve  (12)  months  following  consummation  of  the
transaction, then the Additional Option or any cancelled, assumed, or substituted Option held by Executive in lieu of the
Additional  Option  at  the  time  of  Executive’s  termination  shall  become  fully  accelerated  and  fully  vested  immediately
prior to the effective date of termination.

3.4

Subsequent Grants. Subject to the discretion of the Board of Directors, Executive shall be eligible to receive
future grants of stock options or purchase rights from time to time in the future, on such terms and subject to such conditions as the
Board shall determine as of the date of any such grant.

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3.5

Benefit Plan Eligibility. Executive shall be entitled to: (i) participate in the Company’s healthcare coverage
plan  and  401(k)  or  similar  retirement  plan;  and  (ii)  receive  paid  vacation  and  sick  leave,  with  levels  to  be  determined  by  the
Company’s Board (or, if established, the Compensation Committee), all upon the same terms as such benefits are made available to
other senior executives of the Company.

3.6

Reimbursement  of  Expenses.  Executive  shall  be  entitled  to  payment  or  reimbursement  of  all  reasonable,
ordinary, and necessary business expenses incurred by Executive in the performance of his responsibilities and the promotion of the
Company’s business, including but not limited to professional expenses such as memberships and medical licensing, provided that
those expenses are consistent with the Company policy and limits. Executive shall submit to the Company periodic statements of
all expenses so incurred. Subject to such reviews as the Company may deem necessary, the Company shall reimburse Executive the
full amount of any such expenses advanced by him in the ordinary course of business.

ARTICLE 4

EFFECT OF TERMINATION ON COMPENSATION

4.1

In General. Upon a termination of Executive’s employment for any reason, the Executive (or the Executive’s
estate)  shall  be  entitled  to  receive  the  sum  of  Executive’s  Base  Salary  through  the  date  of  termination  not  theretofore  paid;  any
unpaid expense reimbursements owed to the Executive under paragraph 3.5; and any amount arising from Executive’s participation
in, or benefits under, any employee benefit plans, programs or arrangements under paragraph 3.4 (including without limitation, any
disability or life insurance benefit plans, programs or arrangements), which amounts shall be payable in accordance with the terms
and conditions of such employee benefit plans, programs or arrangements. Except as otherwise provided in this Article 4, all of
Executive’s rights to salary, fringe benefits and other compensation hereunder shall cease upon such date of termination, other than
those expressly required under applicable law.

4.2

Termination by the Company. If Executive’s employment hereunder shall be terminated by the Company at
any  time  for  reasons  other  than  those  provided  in  Sections  2.2(i),  (ii),  or  (iii),  then  the  Company  shall:  (a)  provide  for  the
participation  of  Executive  and/or  his  dependents,  as  applicable,  in  the  Company’s  medical  and  dental  benefits  in  which  they  are
enrolled at the time of such termination for a period of three (3) months following the termination date of Executive’s employment,
at the Company’s expense, to the extent that such continuation is permitted at the time of such termination under the terms of such
Company benefit plans and insurance arrangements, and if such continuation is not permitted then the Company shall reimburse
Executive  for  the  cost  of  Executive  procuring  the  same  or  substantially  similar  benefits  himself,  unless  Executive  is  otherwise
eligible to receive benefit coverage of a roughly equivalent nature by virtue of his employment with any subsequent employer; and
(b) accelerate the vesting of Executive’s Initial Option (and the Additional Option, if granted) by a period of twelve (12) months,
provided Executive agrees to remain reasonably available to consult with the Company, on an as needed as requested basis, for a
period of twelve (12) months, on any issues reasonably requested by the Company.

4.3

Termination by Executive. If Executive’s employment hereunder shall be terminated by Executive for Good

Reason, then the Company shall: (a) provide for the

6

 
 
participation  of  Executive  and/or  his  dependents,  as  applicable,  in  the  Company’s  medical  and  dental  benefits  in  which  they  are
enrolled at the time of such termination for a period of three (3) months following the termination date of Executive’s employment,
at the Company’s expense, to the extent that such continuation is permitted at the time of such termination under the terms of such
Company benefit plans and insurance arrangements, and if such continuation is not permitted then the Company shall reimburse
Executive  for  the  cost  of  Executive  procuring  the  same  or  substantially  similar  benefits  himself,  unless  Executive  is  otherwise
eligible to receive benefit coverage of a roughly equivalent nature by virtue of his employment with any subsequent employer; and
(b) accelerate the vesting of Executive’s Initial Option (and the Additional Option, if granted) by a period of twelve (12) months,
provided Executive agrees to remain reasonably available to consult with the Company, on an as needed as requested basis, for a
period of twelve (12) months, on any issues reasonably requested by the Company.

4.4

Release and Full Settlement. Anything to the contrary herein notwithstanding, as a condition to the receipt of
the additional termination payments and benefits under paragraph 4.2 or 4.3 hereof, as applicable, Executive shall first execute a
release,  in  the  form  established  by  the  Board,  releasing  the  Board,  the  Company,  and  the  Company’s  parent  corporation,
subsidiaries, affiliates, and their respective shareholders, owners, partners, officers, directors, employees, attorneys and agents from
any and all claims and from any and all causes of action of any kind or character including, but not limited to, all claims or causes
of  action  arising  out  of  Executive’s  employment  with  the  Company  or  its  affiliates  or  the  termination  of  such  employment,  but
excluding  all  claims  to  vested  benefits  and  payments  Executive  may  have  under  any  compensation  or  benefit  plan,  program  or
arrangement,  including  this  Agreement.  Executive  shall  provide  such  release  no  later  than  thirty  (30)  days  after  the  date  of  his
termination  of  employment  with  the  Company  and,  as  a  condition  to  the  Company’s  obligation  to  provide  the  additional
termination  payments  and  benefits  in  accordance  with  paragraphs  4.2  and  4.3,  Executive  shall  not  revoke  such  release.  The
performance  of  the  Company’s  obligations  hereunder  and  the  receipt  of  any  termination  payments  and  benefits  provided  under
paragraphs 4.2 and 4.3 shall constitute full settlement of all such claims and causes of action, subject to the limitations set forth
above.

4.5

Liquidated  Damages.  In  light  of  the  difficulties  in  estimating  the  damages  for  an  early  termination  of
Executive’s employment under this Agreement, the Company and Executive hereby agree that the payments and benefits, if any, to
be received by Executive pursuant to this Article 4 shall be received by Executive as liquidated damages.

4.6

Section  409A  Matters.  Notwithstanding  any  provision  in  this  Agreement  to  the  contrary,  if  Executive  is  a
specified  employee  (within  the  meaning  of  Section  409A(a)(2)(B)(i)  of  the  Internal  Revenue  Code  of  1986,  as  amended  (the
“Code”),  and  applicable  administrative  guidance  thereunder  and  determined  in  accordance  with  any  method  selected  by  the
Company  that  is  permitted  under  the  regulations  issued  under  Section  409A  of  the  Code),  and  the  payment  of  any  amount  or
benefit under this Agreement to or on behalf of Executive would be subject to additional taxes and interest under Section 409A of
the  Code  because  the  timing  of  such  payment  is  not  delayed  as  provided  in  Section  409A(a)(2)(B)(i)  of  the  Code  and  the
regulations  thereunder,  then  any  such  payment  or  benefit  that  Executive  would  otherwise  be  entitled  to  during  the  first  six  (6)
months following the date of Executive’s separation from service (within the meaning of Section 409A(a)(2)(A)(i) of the Code and
applicable administrative guidance

7

 
 
thereunder) shall be accumulated and paid or provided, as applicable, on the date that is six (6) months after Executive’s separation
from service (or if such date does not fall on a business day of the Company, the next following business day of the Company), or
such earlier date upon which such amount can be paid or provided under Section 409A of the Code without being subject to such
additional taxes and interest; provided, however, that Executive shall be entitled to receive the maximum amount permissible under
Section  409A  of  the  Code  and  the  applicable  administrative  guidance  thereunder  during  the  six-month  period  following  his
separation from service that will not result in the imposition of any additional tax or penalties on such amount. For all purposes of
this  Agreement,  Executive  shall  be  considered  to  have  terminated  employment  with  the  Company  when  Executive  incurs  a
“separation  from  service”  with  the  Company  within  the  meaning  of  Section  409A(a)(2)(A)(i)  of  the  Code  and  the  applicable
administrative  guidance  issued  thereunder.  To  the  extent  that  any  reimbursements  pursuant  to  this  Agreement  are  taxable  to  the
Executive, any reimbursement payment due to the Executive pursuant to such provision shall be paid to the Executive on or before
the last day of the Executive’s taxable year following the taxable year in which the related expense was incurred. The Executive
agrees  to  provide  prompt  notice  to  the  Company  of  any  such  expenses  (and  any  other  documentation  that  the  Company  may
reasonably  require  to  substantiate  such  expenses)  in  order  to  facilitate  the  Company’s  timely  reimbursement  of  the  same.  The
reimbursements  and  benefits  pursuant  to  this  Agreement  are  not  subject  to  liquidation  or  exchange  for  another  benefit  and  the
amount of such reimbursements  and  benefits  that  the  Executive  receives  in  one taxable year shall not affect the amount of such
reimbursements or benefits that the Executive receives in any other taxable year. To the extent that Section 409A of the Code is
applicable to this Agreement, the provisions of this Agreement shall be interpreted as necessary to comply with such section and
the applicable administrative guidance issued thereunder.

4.7

Other  Benefits.  This  Agreement  governs  the  rights  and  obligations  of  Executive  and  the  Company  with
respect to Executive’s Base Salary, initial stock option grant, benefits, and certain perquisites of employment. Except as expressly
provided herein, Executive’s rights and obligations both during the term of his employment and thereafter with respect to his direct
and indirect ownership rights in the Company, and other benefits under the plans and programs maintained by the Company, shall
be governed by the separate agreements, plans and the other documents and instruments governing such matters.

ARTICLE 5

PROTECTION OF CONFIDENTIAL INFORMATION

5.1

PIIA. Executive acknowledges and agrees that all compensation paid to Executive by the Company pursuant
to this Agreement is conditioned upon Executive’s confirmation of that certain Proprietary Information and Inventions Agreement
previously  executed  by  the  parties  on  January  16,  2015,  a  copy  of  which  is  attached  as  Exhibit  A  (the  “PIIA”),  which  is
incorporated herein by this reference. Executive hereby covenants to abide by the terms and conditions of the PIIA, including, but
not  limited  to,  the  assignment  of  inventions  and  confidentiality  provisions  of  the  PIIA  as  if  re-executed  by  the  parties  on  the
Effective Date.

5.2

Remedies.  Executive  acknowledges  that  money  damages  would  not  be  sufficient  remedy  for  any  breach  of
this  Article  5  by  Executive,  and  the  Company  or  its  affiliates  shall  be  entitled  to  enforce  the  provisions  of  this  Article  5  by
terminating payments then owing to Executive under this Agreement or otherwise and to specific performance and injunctive relief
as

8

 
 
remedies for such breach. Such remedies shall not be deemed the exclusive remedies for a breach of this Article 5 but shall be in
addition to all remedies available at law or in equity, including the recovery of damages from Executive and his agents.

ARTICLE 6

NON-COMPETITION AND NON-SOLICITATION OBLIGATIONS

6.1

Non-Competition and Non-Solicitation Obligations. As part of the consideration for the compensation and
benefits to be paid to Executive hereunder; to protect the trade secrets and confidential information of the Company that have been
or will in the future be disclosed or entrusted to Executive, the business good will of the Company and its affiliates that has been
and will in the future be developed in Executive, or the business opportunities that have been and will in the future be disclosed or
entrusted to Executive by the Company and its affiliates; the Company and Executive agree to the following provisions:

(i)

Executive  hereby  agrees  that  during  the  term  of  his  direct  or  indirect  employment  or  consulting
relationship with the Company (as the case may be), and for a period of twelve (12) months following the termination of
his employment or consulting relationship with the Company (as the case may be) for any reason, Executive shall not
directly  or  indirectly  solicit,  induce,  recruit,  hire  or  encourage  any  of  the  Company’s  employees  or  consultants  to
terminate their relationship with the Company, or attempt any of the foregoing, either for himself or any other person or
entity. For a period of twelve (12) months following termination of Executive’s employment or consulting relationship
with  the  Company  (as  the  case  may  be)  for  any  reason,  Executive  hereby  covenants  not  to  solicit  any  licensor  to  or
customer of the Company or licensee of the Company’s products, that are known to him with respect to any business,
products or services that are competitive to the products or services offered by the Company or under development as of
the  date  of  termination  of  his  relationship  with  the  Company.  In  the  event  that  Executive’s  employment  with  the
Company is terminated by the Company without Cause or if Executive resigns for Good Reason, then the twelve (12)
month periods referenced above in this section shall each be reduced to six (6) months.

(ii)

Executive  hereby  agrees  that  during  the  term  of  his  direct  or  indirect  employment  or  consulting
relationship  with  the  Company  (as  the  case  may  be)  and  for  twelve  (12)  months  following  the  termination  of  his
employment  or  consulting  relationship  with  the  Company  (as  the  case  may  be)  for  any  reason,  he  will  not,  without  the
Company’s prior written consent, directly or indirectly work on any products or services that are competitive with products
or services (a) being commercially developed or exploited by the Company during his employment or consultancy with the
Company (as the case may be) and (b) on which he worked or about which he learned Proprietary Information (as defined
in the PIIA) during his employment or consultancy with the Company (as the case may be). In the event that Executive’s
employment with the Company is terminated by the Company without Cause or if Executive resigns for Good Reason, then
the twelve (12) month period referenced above in this section shall be reduced to six (6) months.

6.2

Enforcement and Remedies. Executive acknowledges that money damages would not be sufficient remedy
for  any  breach  of  this  Article  6  by  Executive,  and  the  Company  shall  be  entitled  to  enforce  the  provisions  of  this  Article  6  by
terminating any payments then

9

 
 
owing to Executive under this Agreement and/or to specific performance and injunctive relief as remedies for such breach. Such
remedies shall not be deemed the exclusive remedies for a breach of this Article 6, but shall be in addition to all remedies available
at law or in equity to the Company, including, without limitation, the recovery of damages from Executive and Executive’s agents
involved in such breach and remedies available to the Company pursuant to other agreements with Executive.

6.3

Reformation. It is expressly understood and agreed that the Company and Executive consider the restrictions
contained in this Article 6 to be reasonable and necessary to protect the proprietary information of the Company and its affiliates.
Nevertheless, if any of the aforesaid restrictions are found by a court having jurisdiction to be unreasonable, or overly broad as to
geographic area or time, or otherwise unenforceable, the parties intend for the restrictions therein set forth to be modified by such
courts so as to be reasonable and enforceable and, as so modified by the court, to be fully enforced.

ARTICLE 7

NONDISPARAGEMENT

Executive  agrees  not  to  disparage  the  Company,  any  of  its  products  or  practices,  or  any  of  its  directors,  officers,
employees,  agents,  representatives,  stockholders  or  affiliates,  either  orally  or  in  writing,  at  any  time  and  the  Company  and  its
Affiliates shall not and shall instruct members of the Board and executive officers of the Company not to disparage the Executive,
either orally or in writing, at any time; provided, that, either party may confer in confidence with its legal representatives and make
truthful statements as required by law or as required by any applicable rules of professional conduct.

ARTICLE 8

MISCELLANEOUS

8.1

Notices. For purposes of this Agreement, notices and all other communications provided for herein shall be in
writing  and  shall  be  deemed  to  have  been  duly  given  when  personally  delivered  or  when  mailed  by  United  States  registered  or
certified mail, return receipt requested, postage prepaid, addressed as follows:

To the Company:

With copy to:

To Executive:

  Alpine Immune Sciences, Inc.
  600 Stewart St., Ste. 1503
  Seattle, WA 98101

  Van Katzman
  Ascent Law Partners, LLP
  719 Second Ave, Ste. 1150
  Seattle, WA 98104

  Dr. Mitchell H. Gold
  5754-63rd Ave. NE
  Seattle, WA 98105

or to such other address as either party may furnish to the other in writing in accordance herewith, except that notices or changes of
address shall be effective only upon receipt.

10

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
8.2
the State of Washington.

Applicable Law. This Agreement is entered into under, and shall be governed for all purposes by the laws of

8.3

No Waiver. No failure by either party hereto at any time to give notice of any breach by the other party of, or
to  require  compliance  with,  any  condition  or  provision  of  this  Agreement  shall  be  deemed  a  waiver  of  similar  or  dissimilar
provisions or conditions at the same or at any prior or subsequent time.

8.4

Severability. If a court of competent jurisdiction determines that any provision of this Agreement is invalid or
unenforceable, then the invalidity or unenforceability of that provision shall not affect the validity or enforceability of any other
provision of this Agreement, and all other provisions shall remain in full force and effect.

8.5

Counterparts. This Agreement may be executed in one or more counterparts, each of which shall be deemed

to be an original, but all of which together will constitute one and the same agreement.

8.6

Withholding of Taxes and Other Employee Deductions. The Company may withhold from any benefits and
payments made pursuant to this Agreement or otherwise all federal, state, city and other taxes as may be required pursuant to any
law or governmental regulation or ruling and all other normal employee deductions made with respect to the Company’s employees
generally.

8.7
interpretive purposes.

Headings. The paragraph headings have been inserted for purposes of convenience and shall not be used for

8.8

Affiliate.  As  used  in  this  Agreement,  the  term  “affiliate”  shall  mean  any  entity  which  owns  or  controls,  is

owned or controlled by, or is under common ownership or control with, the Company.

8.9

Assignment.  This  Agreement  shall  be  binding  upon  and  inure  to  the  benefit  of  the  Company  and  any
successor of the Company, by merger or otherwise. This Agreement shall also be binding and inure to the benefit of Executive and
his heirs. Except as provided in the preceding sentence, this Agreement, and the rights and obligations of the parties hereunder, are
personal  and  neither  this  Agreement,  nor  any  right,  benefit,  or  obligation  of  either  party  hereto,  shall  be  subject  to  voluntary  or
involuntary assignment, alienation or transfer, whether by operation of law or otherwise, without the prior written consent of the
other party.

8.10

Term.  This  Agreement  has  a  term  co-extensive  with  the  term  of  employment  provided  in  Article  2.
Termination  shall  not  affect  any  right  or  obligation  of  any  party  which  is  accrued  or  vested  prior  to  such  termination.  The
provisions of paragraphs 2.5, 4.4 to 4.7 and Articles 5, 6, 7 and 8 shall survive any termination of this Agreement.

8.11

Entire Agreement.  This  Agreement,  the  PIIA,  the  2015  Stock  Plan  and  the  Stock  Option  Agreement  will
constitute the entire agreement of the parties with regard to the subject matter hereof, and will contain all the covenants, promises,
representations, warranties and agreements between the parties with respect to employment of Executive by the Company. Without
limiting the scope of the preceding sentence, all understandings and agreements

11

 
 
preceding the date of execution of this Agreement and relating to the subject matter hereof are as of the Effective Date superseded
by this Agreement and null and void and of no further force and effect. Any modification of this Agreement will be effective only if
it is in writing and signed by the party to be charged.

8.12

Liability  Insurance.  The  Company  may  maintain  a  directors’  and  officers’  insurance  liability  policy
throughout the term of this Agreement and may provide Executive with coverage under such policy consistent with those provided
to other the Company directors and officers.

8.13

Arbitration.

(i)

The Company and Executive agree to submit to final and binding arbitration any and all disputes or
disagreements concerning the interpretation or application of this Agreement, the termination of this Agreement, or any
other  aspect  of  the  Executive’s  employment  relationship  with  Company.  Any  such  dispute  or  disagreement  will  be
resolved  by  arbitration  in  accordance  with  the  National  Rules  for  the  Resolution  of  Employment  Disputes  of  the
American Arbitration Association before a single arbitrator. Arbitration will take place in Seattle, Washington, unless the
parties  mutually  agree  to  a  different  location.  Company  and  Executive  agree  that  the  decision  of  the  arbitrator  will  be
final and binding on both parties. Any court having jurisdiction may enter a judgment upon the award rendered by the
arbitrator. The costs of the proceedings shall be borne equally by the parties unless the arbitrator orders otherwise.

(ii)

Notwithstanding the provisions of paragraph 8.13(i), Company may, if it so chooses, bring an action
in any court of competent jurisdiction for temporary or preliminary injunctive relief to enforce Executive’s obligations
under Articles 5 (including the PIIA), 6 or 7 hereof, pending a decision by the arbitrator in accordance with paragraph
8.13(i).

[Signature page follows.]

12

 
 
 
 
IN WITNESS WHEREOF, the parties hereto have executed this Agreement to be effective as of the Effective Date.

EXECUTIVE:

DR. MITCHELL H. GOLD,
an individual

By:
Name: Dr. Mitchell H. Gold

/s/ Dr. Mitchell H. Gold

COMPANY:

ALPINE IMMUNE SCIENCES, INC.,
a Delaware corporation

By:
Name:
Its: President

/s/ Jay Venkatesan
Jay Venkatesan

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EXHIBIT A

PIIA

 
 
ALPINE IMMUNE SCIENCES, INC.
AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT

Exhibit 10.33

THIS  AMENDED  AND  RESTATED  EXECUTIVE  EMPLOYMENT  AGREEMENT  (the  “Agreement”)  is  entered  into  as  of
January  1,  2018  (the  “Effective  Date”)  between  Alpine  Immune  Sciences,  Inc.  (the  “Company”),  and  Mitchell  H.  Gold  (“Executive”)
(collectively referred to as the “Parties” or individually as a “Party”).

R E C I T A L S

WHEREAS, the Company desires to continue to employ Executive as its Chief Executive Officer and Executive Chairman, and to

enter into an agreement embodying the terms of such continued at-will employment;

WHEREAS, the Company desires for Executive to continue to serve as a member of its Board of Directors during the Employment

Term (as defined below); and

WHEREAS, Executive desires to accept such continued employment and enter into such an agreement.

A G R E E M E N T

NOW, THEREFORE, in consideration of the premises and mutual covenants herein and for other good and valuable consideration,

the Parties agree as follows:

1.

Duties and Scope of Employment.

(a)

Positions and Duties.   As  of  the  Effective  Date,  Executive  will  continue  to  serve  as  Chief  Executive  Officer  and
Executive Chairman of the Company, subject to the terms and conditions of this Agreement.  Executive will continue to render such business and
professional services in the performance of his duties, consistent with Executive’s position within the Company, as shall continue to be reasonably be
assigned to him by the Company’s Board of Directors (the “Board”) and, as such, from and after the date hereof, shall report directly to and shall be
subject to the direction of the Board.  The period of Executive’s continued at-will employment under the terms of this Agreement is referred to herein
as the “Employment Term.”

(b)

Obligations.  During the Employment Term, Executive will continue to perform his duties faithfully and to the
best of his ability and will continue to devote his full business efforts and time to the Company.  For the duration of the Employment Term, and
as  before,  Executive  agrees  not  to  actively  engage  in  any  other  employment,  occupation  or  consulting  activity  for  any  direct  or  indirect
remuneration without the prior written approval of the Board.

2.

At-Will Employment.  Subject to Sections 6 below, the parties agree that Executive’s employment with the Company will
continue  to  be  “at-will”  employment  and,  as  such,  may  be  terminated  at  any  time  with  or  without  cause  or  notice,  for  any  reason  or  no
reason.  Executive further understands and agrees that, as before, neither his job performance nor promotions, commendations, bonuses or the
like from the Company give rise to or in any way serve as the basis for modification, amendment, or extension, by implication or otherwise, of
his employment with the Company.

 
 
 
3.

Compensation.

(a)

Base Salary.  During the Employment Term, the Company will pay Executive as compensation for his services
a base salary at a rate of $400,000 per year, as modified from time to time at the discretion of the Board or a duly constituted committee of the
Board (the “Base Salary”).  The Base Salary, as before, will be paid in regular installments in accordance with the Company’s normal payroll
practices (subject to required withholding).  Any modification in Base Salary (together with the then existing Base Salary) shall serve as the
“Base  Salary”  for  future  employment  under  this  Agreement.    The  first  and  last  payment  will  be  adjusted,  if  necessary,  to  reflect  a
commencement or termination date other than the first or last working day of a pay period.

(b)

Annual Bonus.  During the Employment Term, for each calendar year, Executive shall be eligible to earn an
annual  discretionary  bonus  based  upon  the  achievement  of  certain  Company  and  individual  goals  as  determined  by  the  Company  in  its
discretion  after  consultation  with  Executive  (the  “Annual  Bonus”).    The  Board  will  determine  in  its  discretion  whether  the  performance
objectives for any Annual Bonus have been achieved.  In connection with the Annual Bonus, subject to the corresponding performance levels
being achieved, the Executive shall be eligible for an annual target bonus of up to 50% of the Executive’s Base Salary (the “Target Bonus”)
with  an  annual  maximum  bonus  equal  to  100%  of  the  Target  Bonus.   The  Board  does,  however,  retain  the  option  of  increasing  the  Annual
Bonus in any given year by an additional discretionary amount in the event Executive significantly exceeds the above-referenced performance
objectives  for  that  year,  as  determined,  in  all  cases,  by  the  Board  in  its  sole  discretion.   Any  such  Annual  Bonus  (including  any  additional
discretionary increase, if awarded by the Board) will be determined and, to the extent earned, paid on an annual basis, at the time and manner in
which such bonuses are normally paid to employees at Executive’s level, but in no event will such payment be made later than March 15 of the
year following the year such Annual Bonus was earned.  Receipt of any Annual Bonus is contingent upon Executive’s continued employment
with the Company through the date the Annual Bonus is earned and any Annual Bonus for a calendar year will not be considered earned if
Executive is terminated prior to December 1.  No “pro-rated” or partial bonus will be provided in the event of Executive’s earlier separation
from employment, except as provided by this Agreement.

(c)

Equity.  The  Executive  acknowledges  and  agrees  that  Executive  has  been  previously  awarded  the  options  to
purchase shares of the Company’s common stock detailed in Schedule 1 hereto, subject to the terms, definitions and conditions, including vesting
requirements,  of  the  relevant  stock  option  agreements  between  Executive  and  the  Company  (the  “Option  Agreements”)  and  the  Company’s
Amended and Restated 2015 Stock Plan and 2015 Equity Incentive Plan, as applicable (collectively, the “Equity Plans”).

4.

Employee Benefits.  During the Employment Term, Executive will be continue to be eligible to participate in the employee
benefit  plans  currently  and  hereafter  maintained  by  the  Company  of  general  applicability  to  similarly-situated  senior  executives  of  the
Company, subject to the terms and conditions of the applicable policies.  The Company, as before, reserves the right to cancel or change the
benefit plans and programs it offers to its employees at any time.

5.

Business Expenses.  During the Employment Term, the Company will reimburse Executive for reasonable business travel,
entertainment  or  other  business  expenses  incurred  by  Executive  in  the  furtherance  of  or  in  connection  with  the  performance  of  Executive’s
duties  hereunder,  in  accordance  with  the  Company’s  expense  reimbursement  policy  as  in  effect  from  time  to  time.    Except  as  expressly
provided otherwise herein, no reimbursement payable to the Executive pursuant to any provision of this Agreement or pursuant to any plan or
arrangement of the Company shall be paid later than the last day of the calendar year following the calendar year in which the related expense
was incurred, and no such reimbursement during any calendar year shall affect the amounts eligible for reimbursement in any other calendar
year, except, in each

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case, to the extent that the right to reimbursement does not provide for a “deferral of compensation” within the meaning of Section 409A of the
Internal  Revenue  Code  of  1986,  as  amended  (the  “Code”),  and  the  final  regulations  and  any  formal  guidance  issued  thereunder  (“Section
409A”).

6.

Termination and Severance.  As discussed above, the Company shall be entitled to terminate Executive at any time and for
any reason, and Executive shall be entitled to resign at any time and for any reason.  Executive may, however, be entitled to receive certain
severance  benefits  in  connection  with  his  separation  from  employment  under  the  Company’s  Change  of  Control  and  Severance  Policy  (the
“Severance  Policy”).    Any  such  severance,  if  applicable,  will  be  subject  to  the  terms  and  conditions  of  the  Severance  Policy,  as  may  be
amended or modified from time to time.

7.

Company Matters.

(a)

Proprietary  Information  and  Inventions.    Executive  acknowledges  and  agrees  that,  as  a  condition  of  his
continued  employment,  he  is  required  to  sign  and  abide  by  the  terms  of  the  At-Will  Employment,  Confidential  Information,  Invention
Assignment, and Arbitration Agreement (the “Confidentiality Agreement”), including the arbitration agreement and provisions governing the
nondisclosure  of  confidential  information  and  restrictive  covenants  contained  therein.   A  copy  of  the  Confidentiality  Agreement  is  attached
hereto as Exhibit A.

(b)

Ventures.    If,  during  his  employment  and  as  before,  Executive  is  engaged  in  or  associated  with  planning  or
implementing of any project, program or venture involving the Company and any third parties, all rights in such project, program or venture
shall belong to the Company (or third party, to the extent provided in any agreement between the Company and the third party).  Except as
approved  by  the  Board  in  writing,  Executive  shall  not  be  entitled  to  any  interest  in  such  project,  program  or  venture  or  to  any  commission,
finder’s fee or other compensation in connection therewith other than the salary or other compensation to be paid to Executive as provided in
this Agreement.

Notification  of  New  Employer.    In  the  event  that  Executive  leaves  the  employ  of  the  Company,  Executive
grants  consent  to  notification  by  the  Company  to  Executive’s  new  employer  about  his  rights  and  obligations  under  this  Agreement  and  the
Confidentiality Agreement.

(c)

8.

ARBITRATION.  IN CONSIDERATION OF EXECUTIVE’S EMPLOYMENT WITH THE COMPANY, ITS PROMISE
TO ARBITRATE ALL EMPLOYMENT-RELATED DISPUTES AND EXECUTIVE’S RECEIPT OF THE COMPENSATION, PAY RAISES
AND OTHER BENEFITS PAID TO EXECUTIVE BY THE COMPANY, AT PRESENT AND IN THE FUTURE, EXECUTIVE AGREES
THAT  ANY  AND  ALL  CONTROVERSIES,  CLAIMS,  OR  DISPUTES  WITH  ANYONE  (INCLUDING  THE  COMPANY  AND  ANY
EMPLOYEE, OFFICER, DIRECTOR, SHAREHOLDER OR BENEFIT PLAN OF THE COMPANY, IN THEIR CAPACITY AS SUCH OR
OTHERWISE),  ARISING  OUT  OF,  RELATING  TO,  OR  RESULTING  FROM  EXECUTIVE’S  EMPLOYMENT  WITH  THE  COMPANY
OR  THE  TERMINATION  OF  EXECUTIVE’S  EMPLOYMENT  WITH  THE  COMPANY,  INCLUDING  ANY  BREACH  OF  THIS
AGREEMENT, SHALL BE SUBJECT TO BINDING ARBITRATION, AS SET FORTH IN THE CONFIDENTIALITY AGREEMENT.

9.

Assignment.    This  Agreement  will  be  binding  upon  and  inure  to  the  benefit  of  (a)  the  heirs,  executors  and  legal
representatives  of  Executive  upon  Executive’s  death  and  (b)  any  successor  of  the  Company.   Any  such  successor  of  the  Company  will  be
deemed substituted for the Company under the terms of this Agreement for all purposes. For this purpose, “successor” means any person, firm,
corporation  or  other  business  entity  which  at  any  time,  whether  by  purchase,  merger  or  otherwise,  directly  or  indirectly  acquires  all  or
substantially  all  of  the  assets  or  business  of  the  Company.    None  of  the  rights  of  Executive  to  receive  any  form  of  compensation  payable
pursuant to this Agreement may be assigned or transferred except

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by will or the laws of descent and distribution.  Any other attempted assignment, transfer, conveyance or other disposition of Executive’s right
to compensation or other benefits will be null and void.

10.

Notices.  All notices, requests, demands and other communications called for under this Agreement shall be in writing
and shall be delivered personally by hand or by courier, mailed by United States first-class mail, postage prepaid, or sent by facsimile directed
to the Party to be notified at the address or facsimile number indicated for such Party on the signature page to this Agreement, or at such other
address or facsimile number as such Party may designate by ten (10) days’ advance written notice to the other Parties hereto.  All such notices
and  other  communications  shall  be  deemed  given  upon  personal  delivery,  three  (3)  days  after  the  date  of  mailing,  or  upon  confirmation  of
facsimile transfer.

11.

Severability.    In  the  event  that  any  provision  hereof  becomes  or  is  declared  by  a  court  of  competent  jurisdiction  to  be

illegal, unenforceable or void, this Agreement will continue in full force and effect without said provision.

12.

Integration.    This  Agreement,  together  with  the  Severance  Policy,  the  Equity  Plans,  the  Option  Agreements  and  the
Confidentiality  Agreement,  represents  the  entire  agreement  and  understanding  between  the  parties  as  to  the  subject  matter  herein  and
supersedes all prior or contemporaneous agreements whether written or oral, including the Employment Agreement dated as of March 14, 2017
by and between the Company and Executive (the “Prior Employment Agreement”).  The Executive and Company acknowledge and agree
that the Prior Employment Agreement shall be of no further force and effect.  No waiver, alteration, or modification of any of the provisions of
this Agreement will be binding unless in writing and signed by duly authorized representatives of the parties hereto.

13.

Tax Withholding.  All payments, as before, made pursuant to this Agreement will be subject to withholding of applicable

taxes.

14.

Waiver.  No Party shall be deemed to have waived any right, power or privilege under this Agreement or any provisions
hereof unless such waiver shall have been duly executed in writing and acknowledged by the Party to be charged with such waiver.  The failure
of any Party at any time to insist on performance of any of the provisions of this Agreement shall in no way be construed to be a waiver of such
provisions, nor in any way to affect the validity of this Agreement or any part hereof.  No waiver of any breach of this Agreement shall be held
to be a waiver of any other subsequent breach

15.

Governing Law.    This  Agreement  will  be  governed  by  the  laws  of  the  State  of  Washington  (with  the  exception  of  its

conflict of law provisions).

16.

Conflict Waiver.  Each of the Parties to this Agreement understands that Wilson Sonsini Goodrich & Rosati, Professional
Corporation (“WSGR”) is serving as counsel to the Company in connection with the transactions contemplated hereby, and that discussion of
such  transactions  with  Executive  could  be  construed  to  create  a  conflict  of  interest.    By  executing  this  Agreement,  the  Parties  hereto
acknowledge the potential conflict of interest and waive the right to claim any conflict of interest at a later date.  Furthermore, by executing this
Agreement, the Parties acknowledge that if a conflict of interest exists and any litigation arises between Executive and the Company, WSGR
would represent the Company.  Executive represents and warrants that he has had the opportunity to seek independent counsel in his review of
this and all related agreements and that he is not relying on WSGR for any legal, tax or other advice relating to such agreements.

17.

Acknowledgment.  Executive acknowledges that he has had the opportunity to discuss this matter with and obtain advice from
his legal counsel, has had sufficient time to, and has carefully read and fully understands all the provisions of this Agreement, and is knowingly and
voluntarily entering into this Agreement.  Executive further acknowledges and agrees that, as of the date hereof, the Company has paid or provided all
earned

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salary, wages, bonuses, accrued vacation/paid time off, leave, allowances, reimbursable expenses, commissions, stock, stock options, vesting, and any
and all other benefits and compensation that may be due to Executive.

18.

Counterparts.    This  Agreement  may  be  executed  in  multiple  counterparts,  each  of  which  shall  be  deemed  to  be  an

original, and all such counterparts shall constitute but one instrument.

19.
the construction hereof.

Effect of Headings.  The section and subsection headings contained herein are for convenience only and shall not affect

20.

Construction of Agreement.  This Agreement has been negotiated by the respective Parties, and the language shall not be

construed for or against either Party.

21.

Section 409A. The Section 409A paragraph of the Severance Policy are incorporated herein by reference.

22.

Protected  Activity  Not  Prohibited.    Executive  understands  that  nothing  in  this  Agreement,  or  any  other  agreement  or
policy with or by the Company, shall in any way limit or prohibit Executive from engaging in any Protected Activity.  For purposes of this
Agreement,  “Protected  Activity”  shall  mean  filing  a  charge,  complaint,  or  report  with,  or  otherwise  communicating,  cooperating,  or
participating  in  any  investigation  or  proceeding  that  may  be  conducted  by,  any  federal,  state  or  local  government  agency  or  commission,
including  the  Securities  and  Exchange  Commission,  the  Equal  Employment  Opportunity  Commission,  the  Occupational  Safety  and  Health
Administration,  and  the  National  Labor  Relations  Board  (“Government  Agencies”).    Executive  understands  that  in  connection  with  such
Protected  Activity,  Executive  is  permitted  to  disclose  documents  or  other  information  as  permitted  by  law,  and  without  giving  notice  to,  or
receiving authorization from, the Company.  Notwithstanding the foregoing, Executive agrees to take all reasonable precautions to prevent any
unauthorized use or disclosure of any information that may constitute Company confidential information under the Confidentiality Agreement
to any parties other than the Government Agencies.  Executive further understands that “Protected Activity” does not include the disclosure of
any Company attorney-client privileged communications.  Any language in the Confidentiality Agreement, or any other agreement or policy of
the Company, regarding Executive’s right to engage in Protected Activity that conflicts with, or is contrary to, this paragraph is superseded by
this  provision.    In  addition,  pursuant  to  the  Defend  Trade  Secrets  Act  of  2016,  Executive  is  notified  that  an  individual  will  not  be  held
criminally or civilly liable under any federal or state trade secret law for the disclosure of a trade secret that (a) is made in confidence to a
federal,  state,  or  local  government  official  (directly  or  indirectly)  or  to  an  attorney  solely  for  the  purpose  of  reporting  or  investigating  a
suspected violation of law, or (b) is made in a complaint or other document filed in a lawsuit or other proceeding, if (and only if) such filing is
made under seal.  In addition, an individual who files a lawsuit for retaliation by an employer for reporting a suspected violation of law may
disclose  the  trade  secret  to  the  individual’s  attorney  and  use  the  trade  secret  information  in  the  court  proceeding,  if  the  individual  files  any
document containing the trade secret under seal and does not disclose the trade secret, except pursuant to court order.

23.

Clawback  Provisions.    Notwithstanding  any  other  provisions  in  this  Agreement  to  the  contrary,  any  incentive-based
compensation,  or  any  other  compensation,  paid  to  Executive  pursuant  to  this  Agreement  or  any  other  agreement  or  arrangement  with  the
Company or any of its affiliates, which is subject to recovery under any law, government regulation or stock exchange listing requirement, will
be  subject  to  such  deductions  and  clawback  as  may  be  required  to  be  made  pursuant  to  such  law,  government  regulation  or  stock  exchange
listing requirement (or any policy adopted by the Company or any of their affiliates pursuant to any such law, government regulation or stock
exchange listing requirement), including for any violations of the Confidentiality Agreement, if applicable.

[Remainder of page is intentionally blank; Signature page follows]

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IN WITNESS WHEREOF, each of the Parties has executed this Agreement as of the day and year first above written.

“COMPANY”

ALPINE IMMUNE SCIENCES, INC.

By:
Name:
Its:

Address:

Fax Number:

 /s/ Paul Rickey
 Paul Rickey
 Chief Financial Officer

 201 Elliott Avenue West, Suite 230
 Seattle, WA 98119

“EXECUTIVE”

MITCHELL H. GOLD

/s/ Mitchell H. Gold
Mitchell H. Gold

Address:

Fax Number:

AMENDED AND RESTATED EXECUTIVE 
EMPLOYMENT AGREEMENT SIGNATURE PAGE

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Grant Date
12/16/2015
03/14/2017
04/12/2017
01/02/2018

Number of Shares
149,069*
300,624
208,916
70,000

SCHEDULE 1

Vesting
Commencement Date
01/16/2015
01/20/2017
01/20/2017
01/02/2018

Exercise Price
$0.45
$0.65
$5.02
$11.31

Vesting
Schedule
(1)
(2)
(2)
(2)

*

Includes options for 97,827 shares of common stock that were exercised prior to the Effective Date.

(1)

(2)

50% of the shares shall vest on May 16, 2016, and 1/32nd of the remaining shares shall vest on each monthly anniversary thereafter,
such  that  all  of  the  shares  subject  to  the  option  shall  be  fully  vested  and  exercisable  as  of  the  4-year  anniversary  of  the  Vesting
Commencement Date.

1/4th of the shares shall vest on the one-year anniversary of the Vesting Commencement Date, and 1/36th of the remaining shares shall
vest  on  each  monthly  anniversary  thereafter,  such  that  100%  of  the  shares  shall  be  fully  vested  and  exercisable  as  of  the  4-year
anniversary of the Vesting Commencement Date.

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EXHIBIT A

(CONFIDENTIALITY AGREEMENT)

 
 
 
EMPLOYMENT AGREEMENT

Exhibit 10.34

This  Employment  Agreement  (“Agreement”)  is  entered  into  as  of  April  1,  2017,  by  and  between  Alpine  Immune
Sciences,  Inc.,  a  Delaware  corporation  (“Company”),  and  Paul  Rickey,  an  individual  (“Executive”).    Each  of  Company  and
Executive may be referred to individually as a “party” or collectively as the “parties.”

WITNESSETH:

WHEREAS, Executive and the Company are entering into this Agreement in order to set forth the terms and conditions

under which the Executive shall be employed by Company.

NOW,  THEREFORE,  for  and  in  consideration  of  the  mutual  promises,  covenants  and  obligations  contained  herein,

AGREEMENT:

Company and Executive agree as follows:

ARTICLE 1

EMPLOYMENT AND DUTIES

1.1

Employment;  Effective  Date.    Executive’s  employment  with  the  Company  shall  commence  as  of  April  1,
2017  (the  “Effective  Date”).    Effective  as  of  the  Effective  Date,  and  continuing  until  the  time  set  forth  in  Article  2  of  this
Agreement, Executive’s employment by Company shall be subject to the terms and conditions of this Agreement.

1.2

Position.  From and after the Effective Date, Company shall employ Executive as Senior Vice President and

Chief Financial Officer of the Company, initially reporting to the CEO of the Company.

1.3

Duties and Services.  From and after the Effective Date, executive agrees to serve the Company as the Senior
Vice President and Chief Financial Officer of the Company and to perform diligently and to the best of his abilities the duties and
services appertaining to such offices, as well as such additional duties and services appropriate to such offices which the parties
mutually  may  agree  upon  from  time  to  time.    Executive’s  employment  shall  also  be  subject  to  the  policies  maintained  and
established  by  Company  that  are  of  general  applicability  to  Company’s  executive  employees,  as  such  policies  may  be  amended
from time to time.

1.4

Other Interests.  Executive agrees, during the period of his employment by Company, to devote substantially
all of his business time, energy and best efforts to the business and affairs of Company and its affiliates and not to engage, directly
or  indirectly,  in  any  other  business  or  businesses,  whether  or  not  similar  to  that  of  the  Company,  except  with  the  consent  of  the
board  of  directors  of  the  Company  (the  “Board”),  which  consent  shall  not  be  unreasonably  withheld.    The  foregoing
notwithstanding, the parties recognize and agree that Executive may engage in charitable and civic pursuits without the consent of
the Board, as long as Executive is not actively involved in

1

 
 
the  operation  of  such  businesses  and  such  pursuits  do  not  conflict  with  the  business  and  affairs  of  Company  or  its  affiliates  or
interfere with Executive’s performance of his duties hereunder, which shall be in the determination of the Board whose approval
shall not be unreasonably withheld.

1.5

Duty of Loyalty.  Executive acknowledges and agrees that Executive owes a fiduciary duty of loyalty to act at
all  times  in  the  best  interests  of  Company.    In  keeping  with  such  duty,  Executive  shall  make  full  disclosure  to  Company  of  all
business  opportunities  pertaining  to  Company’s  business  and  shall  not  appropriate  for  Executive’s  own  benefit  business
opportunities concerning Company’s business.

ARTICLE 2

TERM AND TERMINATION OF EMPLOYMENT

2.1

Term.    The  initial  term  of  employment  under  this  Agreement  (the  “Initial  Term”)  shall  be  for  the  period
beginning  on  the  Effective  Date  and  ending  on  the  third  (3rd)  anniversary  of  the  Effective  Date,  unless  earlier  terminated  as
provided in paragraph 2.2.  The employment term hereunder shall automatically be extended for successive one (1)-year periods
commencing with the third (3rd) anniversary of the Effective Date (“Extension Terms” and, collectively with the Initial Term, the
“Term”) unless earlier terminated in accordance with this Agreement.

2.2

Company’s Right to Terminate.  Notwithstanding the provisions of paragraph 2.1, Company shall have the

right to terminate Executive’s employment under this Agreement for any of the following reasons:

(i)

upon Executive’s death;

(ii)

upon  Executive’s  disability,  which  shall  mean  Executive’s  becoming  incapacitated  by  accident,
sickness,  or  other  circumstances  which  renders  him  mentally  or  physically  incapable  of  performing  the  duties  and
services required of him hereunder for ninety (90) or more days (whether or not consecutive) out of any consecutive one
hundred eighty (180)-day period, unless any of the days would constitute leave under the Family and Medical Leave Act;

(iii)

for “Cause,” which shall mean Executive has (A) engaged in gross negligence, gross incompetence or
willful  misconduct  in  the  performance  of  the  duties  required  of  him  hereunder;  (B)  refused  without  proper  reason  to
perform the reasonable  and  lawful  duties and  reasonable  and  lawful  responsibilities required of him hereunder causing
material injury to the Company or its affiliates (monetarily or otherwise), and failed to cure such breach (in the event that
such  breach  is  capable  of  being  cured)  within  thirty  (30)  days  following  written  receipt  of  notice  from  the  Company
setting forth in reasonable detail the nature of such breach; (C) materially breached any provision of this Agreement and
failed  to  cure  such  breach  (in  the  event  that  such  breach  is  capable  of  being  cured)  within  thirty  (30)  days  following
receipt of notice from the Company setting forth in reasonable detail the nature of such breach; (D) willfully engaged in
conduct  that  is  materially  injurious  to  the  Company  or  its  affiliates  (monetarily  or  otherwise);  (E)  committed  an  act  of
fraud, embezzlement or willful breach of fiduciary duty to the Company or an affiliate (including

2

 
 
the  unauthorized  disclosure  of  confidential  or  proprietary  material  information  of  the  Company  or  an  affiliate);  or  (F)
been convicted of (or pleaded no contest to) a crime involving fraud, dishonesty or moral turpitude or any felony; or

(iv)

at any time for any other reason, or for no reason whatsoever, in the sole discretion of the Board.

2.3

Executive’s Right to Terminate.  Notwithstanding the provisions of paragraph 2.1, Executive shall have the

right to terminate his employment under this Agreement for any of the following reasons:

(i)

for “Good Reason,” which shall mean, in connection with or based upon, without Executive’s consent,
(A)  a  material  diminution  in  Executive’s  Base  Salary  (as  defined  below),  other  than  in  connection  with  an  across  the
board  salary  reduction  or  deferral  that  applies  proportionately  to  all  employees  of  the  Company  in  conjunction  with  a
capital shortfall; (B) a material diminution in Executive’s responsibilities, duties or authority, including a diminution in
Executive’s job title or reporting relationship; or (C) a material breach by the Company of any material provision of this
Agreement; or

(ii)

at any time for any other reason, or for no reason whatsoever, in the sole discretion of Executive.

2.4

Notice of Termination.  If the Company desires to terminate Executive’s employment hereunder at any time it
shall  do  so  by  giving  a  thirty  (30)-day  written  notice  to  Executive  that  it  has  elected  to  terminate  Executive’s  employment
hereunder and stating the effective date and reason for such termination, provided, however, that that no such action shall alter or
amend any other provisions hereof or rights arising hereunder; and provided, further, however, that the Company may terminate
Executive’s employment relationship with the Company immediately upon written notice to Executive in the event the Company
terminates  Executive’s  employment  for  Cause  and  no  cure  period  applies.    If  Executive  desires  to  terminate  his  employment
hereunder at any time he shall do so by giving a thirty (30)-day written notice to the Company that he has elected to terminate his
employment hereunder and stating the effective date and reason for such termination, provided, however that no such action shall
alter  or  amend  any  other  provisions  hereof  or  rights  arising  hereunder.    In  the  case  of  any  notice  by  Executive  of  his  intent  to
terminate  his  employment  hereunder  for  Good  Reason,  Executive  shall  provide  Company  with  notice  of  the  existence  of  the
condition(s) constituting the Good Reason within thirty (30) days after the initial existence of such condition(s) and the Company
shall have thirty (30) days following Executive’s provision of such notice to remedy such condition(s).  If the Company remedies
the  condition(s)  constituting  the  Good  Reason  within  such  thirty  (30)-day  period,  then  Executive’s  employment  hereunder  shall
continue and his notice of termination shall become void and of no further effect.  If the Company does not remedy the condition(s)
constituting the Good Reason within such thirty (30)-day period, Executive’s employment with the Company shall terminate on the
date that is thirty-one (31) days following the date of Executive’s notice of termination and Executive shall be entitled to receive
the payments and benefits described in paragraph 4.3.

3

 
 
2.5

Deemed Resignations.  Unless otherwise agreed and approved by the Board, any termination of Executive’s
employment shall constitute an automatic resignation of Executive as an officer of the Company and each affiliate of the Company,
and if applicable, an automatic resignation of any seat that he may hold on the Board (including any committee of the Board, if
applicable).

ARTICLE 3

COMPENSATION AND BENEFITS

3.1

Base Salary.  During the Term, the Executive shall receive an initial base salary at a rate of U.S. Two Hundred
Seventy-Five Thousand Dollars (U.S. $275,000) per annum, and such salary shall be paid in accordance with the customary payroll
practices of the Company, subject to annual review by the Board in its sole discretion (the “Base Salary”).

3.2

Initial  Stock  Option  Grant.    In  connection  with  the  execution  of  this  Agreement,  the  Company  will
recommend that the Board grant Executive an option (the “Option”) to purchase up to one hundred fifty thousand (150,000) shares
of  the  Company’s  Common  Stock  (the  “Common Stock”),  subject  to  approval  of  the  Board  and  to  the  terms  of  the  Company’s
Amended  and  Restated  2015  Stock  Plan,  as  amended,  and  the  terms  of  a  Stock  Option  Agreement  to  be  entered  into  by  and
between the Company and Executive, with an exercise price per share equal to the fair market value of the Common Stock on the
date  of  grant  (as  determined  in  good  faith  by  the  Board).    Unless  otherwise  determined  by  the  Board,  the  Option  will  vest  as
follows:

(i)

Vesting Schedule.  One-fourth (1/4th) of the Option shall vest and become exercisable on the twelve
(12)-month anniversary of the Effective Date, and one thirty-sixth (1/36th) of the remaining number of shares shall vest
each  month  thereafter,  such  that  one  hundred  percent  (100%)  of  the  shares  subject  to  the  Option  shall  be  vested  and
exercisable as of the four (4) year anniversary of the Effective Date.  Subject to the provisions of Section 3.2(ii) below,
continued  vesting  of  the  Option  will  stop  on  the  date  Executive’s  employment  or  consulting  relationship  with  the
Company is terminated.

(ii)

Double  Trigger  Acceleration.    In  the  event  of  a  Change  of  Control  (as  defined  below),  if:  (1)
Executive  is  terminated  without  Cause  by  the  Company  or  the  successor  corporation  or  a  parent  or  subsidiary  of  such
successor  corporation  of  the  Company  (the  “Successor  Corporation”)  within  the  ninety  (90)  day  period  prior  to  the
consummation of the Change of Control transaction or within twelve (12) months following consummation of the Change
of Control transaction; or (2) Executive terminates his employment or consulting relationship with the Company or the
Successor Corporation, each as applicable, for Good Reason within the ninety (90) day period prior to the consummation
of the Change of Control transaction or within twelve (12) months following consummation of the transaction, then the
Option or any cancelled, assumed, or substituted Option held by Executive in lieu of the Option at the time of Executive’s
termination  shall  become  fully  accelerated  and  fully  vested  immediately  prior  to  the  effective  date  of  termination.   As
used herein, “Change of Control” shall mean a sale of all or substantially all of the Company’s assets, or any stock sale,
merger, or consolidation of the Company with or into another corporation or business entity

4

 
 
other than a stock sale, merger, or consolidation in which the holders of more than fifty percent (50%) of the shares of
capital  stock  of  the  Company  outstanding  immediately  prior  to  such  transaction  continue  to  hold  (either  by  the  voting
securities remaining outstanding or by their being converted into voting securities of the surviving entity) more than fifty
percent  (50%)  of  the  total  voting  power  represented  by  the  voting  securities  of  the  Company,  or  such  surviving  entity,
outstanding immediately after such transaction; provided, however, that a bona fide equity financing by the Company will
not be deemed to be a Change of Control.

3.3

Bonus Eligibility.    Each  of  the  Company  and  Executive  acknowledge  and  agree  that  the  Company  is  in  the
process  of  negotiating  a  potential  transaction  known  as  “Project  Nautilus”  (the  “Nautilus  Transaction”).    In  recognition  of
Executive’s efforts and contributions to the Nautilus Transaction, and subject to the consummation and final closing of the Nautilus
Transaction,  the  Company  will  pay  to  Executive  a  one  (1)-time  cash  bonus  in  the  amount  of  U.S.  Fifty  Thousand  Dollars  (U.S.
$50,000)  upon  the  final  closing  of  the  Nautilus  Transaction,  as  determined  in  good  faith  by  the  Board;  provided  however,  that
Executive  must  be  employed  by  the  Company  on  such  date  in  order  to  remain  eligible  for  such  bonus  payment.    Such  bonus
payment, if earned, will be paid by the Company to Executive within fifteen (15) days following the date upon which the Board has
confirmed the closing of the Nautilus Transaction.

3.4

Subsequent Grants.  Subject to the discretion of the Board of Directors, Executive shall be eligible to receive
future grants of stock options or purchase rights from time to time in the future, on such terms and subject to such conditions as the
Board shall determine as of the date of any such grant.

3.5

Benefit Plan Eligibility.  Executive shall be entitled to: (i) participate in the Company’s healthcare coverage
plan  and  401(k)  or  similar  retirement  plan;  and  (ii)  receive  paid  vacation  and  sick  leave,  with  levels  to  be  determined  by  the
Company’s  Board  (or,  if  established,  the  Compensation  Committee  of  the  Board),  all  upon  the  same  terms  as  such  benefits  are
made available to other senior executives of the Company.

3.6

Reimbursement  of  Expenses.    Executive  shall  be  entitled  to  payment  or  reimbursement  of  all  reasonable,
ordinary, and necessary business expenses incurred by Executive in the performance of his responsibilities and the promotion of the
Company’s business, provided that those expenses are consistent with the Company policy and limits.  Executive shall submit to
the Company periodic statements of all expenses so incurred.  Subject to such reviews as the Company may deem necessary, the
Company shall reimburse Executive the full amount of any such expenses advanced by him in the ordinary course of business.

ARTICLE 4

EFFECT OF TERMINATION ON COMPENSATION

4.1

In General.  Upon a termination of Executive’s employment for any reason, the Executive (or the Executive’s
estate)  shall  be  entitled  to  receive  the  sum  of  Executive’s  Base  Salary  through  the  date  of  termination  not  theretofore  paid;  any
unpaid expense reimbursements owed to the Executive under paragraph 3.6; and any amount arising from Executive’s participation
in, or benefits under, any employee benefit plans, programs or arrangements under paragraph 3.5

5

 
 
(including  without  limitation,  any  disability  or  life  insurance  benefit  plans,  programs  or  arrangements),  which  amounts  shall  be
payable  in  accordance  with  the  terms  and  conditions  of  such  employee  benefit  plans,  programs  or  arrangements.    Except  as
otherwise provided in this Article 4, all of Executive’s rights to salary, fringe benefits and other compensation hereunder shall cease
upon such date of termination, other than those expressly required under applicable law.

4.2

Termination by the Company.  If Executive’s employment hereunder shall be terminated by the Company at
any time for reasons other than those provided in Sections 2.2(i), (ii), or (iii), then the Company shall: (a) provide Executive with a
cash payment equal to one-fourth (1/4th) of Executive’s Base Salary at the rate in effect under paragraph 3.1 on the date of such
termination,  (b)  provide  for  the  participation  of  Executive  and/or  his  dependents,  as  applicable,  in  the  Company’s  medical  and
dental benefits in which they are enrolled at the time of such termination for a period of three (3) months following the termination
date of Executive’s employment, at the Company’s expense, to the extent that such continuation is permitted at the time of such
termination under the terms of such Company benefit plans and insurance arrangements, and if such continuation is not permitted
then the Company shall reimburse Executive for the cost of Executive procuring the same or substantially similar benefits himself,
unless Executive is otherwise eligible to receive benefit coverage of a roughly equivalent nature by virtue of his employment with
any  subsequent  employer;  and  (c)  accelerate  the  vesting  of  Executive’s  Option  by  a  period  of  twelve  (12)  months,  provided
Executive agrees to remain reasonably available to consult with the Company, on an as needed as requested basis, for a period of
twelve (12) months, on any issues reasonably requested by the Company.

4.3

Termination by Executive.  If Executive’s employment hereunder shall be terminated by Executive for Good
Reason, then the Company shall: (a) provide Executive with a cash payment equal to one-fourth (1/4th) of Executive’s Base Salary
at the rate in effect under paragraph 3.1 on the date of such termination, (b) provide for the participation of Executive and/or his
dependents, as applicable, in the Company’s medical and dental benefits in which they are enrolled at the time of such termination
for a period of three (3) months following the termination date of Executive’s employment, at the Company’s expense, to the extent
that such continuation is permitted at the time of such termination under the terms of such Company benefit plans and insurance
arrangements,  and  if  such  continuation  is  not  permitted  then  the  Company  shall  reimburse  Executive  for  the  cost  of  Executive
procuring the same or substantially similar benefits himself, unless Executive is otherwise eligible to receive benefit coverage of a
roughly equivalent nature by virtue of his employment with any subsequent employer; and (c) accelerate the vesting of Executive’s
Option by a period of twelve (12) months, provided Executive agrees to remain reasonably available to consult with the Company,
on an as needed as requested basis, for a period of twelve (12) months, on any issues reasonably requested by the Company.

4.4

Release and Full Settlement.  Anything to the contrary herein notwithstanding, as a condition to the receipt of
the additional termination payments and benefits under paragraph 4.2 or 4.3 hereof, as applicable, Executive shall first execute a
release,  in  the  form  established  by  the  Board,  releasing  the  Board,  the  Company,  and  the  Company’s  parent  corporation,
subsidiaries, affiliates, and their respective shareholders, owners, partners, officers, directors, employees,

6

 
 
attorneys  and  agents  from  any  and  all  claims  and  from  any  and  all  causes  of  action  of  any  kind  or  character  including,  but  not
limited to, all claims or causes of action arising out of Executive’s employment with the Company or its affiliates or the termination
of  such  employment,  but  excluding  all  claims  to  vested  benefits  and  payments  Executive  may  have  under  any  compensation  or
benefit plan, program or arrangement, including this Agreement.  Executive shall provide such release no later than thirty (30) days
after the date of his termination of employment with the Company and, as a condition to the Company’s obligation to provide the
additional  termination  payments  and  benefits  in  accordance  with  paragraphs  4.2  and  4.3,  Executive  shall  not  revoke  such
release.    The  performance  of  the  Company’s  obligations  hereunder  and  the  receipt  of  any  termination  payments  and  benefits
provided  under  paragraphs  4.2  and  4.3  shall  constitute  full  settlement  of  all  such  claims  and  causes  of  action,  subject  to  the
limitations set forth above.

4.5

Liquidated  Damages.    In  light  of  the  difficulties  in  estimating  the  damages  for  an  early  termination  of
Executive’s employment under this Agreement, the Company and Executive hereby agree that the payments and benefits, if any, to
be received by Executive pursuant to this Article 4 shall be received by Executive as liquidated damages.

4.6

Section 409A Matters.    Notwithstanding  any  provision  in  this  Agreement  to  the  contrary,  if  Executive  is  a
specified  employee  (within  the  meaning  of  Section  409A(a)(2)(B)(i)  of  the  Internal  Revenue  Code  of  1986,  as  amended  (the
“Code”),  and  applicable  administrative  guidance  thereunder  and  determined  in  accordance  with  any  method  selected  by  the
Company  that  is  permitted  under  the  regulations  issued  under  Section  409A  of  the  Code),  and  the  payment  of  any  amount  or
benefit under this Agreement to or on behalf of Executive would be subject to additional taxes and interest under Section 409A of
the  Code  because  the  timing  of  such  payment  is  not  delayed  as  provided  in  Section  409A(a)(2)(B)(i)  of  the  Code  and  the
regulations  thereunder,  then  any  such  payment  or  benefit  that  Executive  would  otherwise  be  entitled  to  during  the  first  six  (6)
months following the date of Executive’s separation from service (within the meaning of Section 409A(a)(2)(A)(i) of the Code and
applicable administrative guidance thereunder) shall be accumulated and paid or provided, as applicable, on the date that is six (6)
months after Executive’s separation from service (or if such date does not fall on a business day of the Company, the next following
business day of the Company), or such earlier date upon which such amount can be paid or provided under Section 409A of the
Code without being subject to such additional taxes and interest; provided, however, that Executive shall be entitled to receive the
maximum amount permissible under Section 409A of the Code and the applicable administrative guidance thereunder during the
six-month period following his separation from service that will not result in the imposition of any additional tax or penalties on
such amount.  For all purposes of this Agreement, Executive shall be considered to have terminated employment with the Company
when Executive incurs a “separation from service” with the Company within the meaning of Section 409A(a)(2)(A)(i) of the Code
and the applicable administrative guidance issued thereunder.  To the extent that any reimbursements pursuant to this Agreement
are  taxable  to  the  Executive,  any  reimbursement  payment  due  to  the  Executive  pursuant  to  such  provision  shall  be  paid  to  the
Executive  on  or  before  the  last  day  of  the  Executive’s  taxable  year  following  the  taxable  year  in  which  the  related  expense  was
incurred.  The Executive agrees to provide prompt notice to the Company of any such expenses (and any other documentation that
the Company may reasonably

7

 
 
require to substantiate such expenses) in order to facilitate the Company’s timely reimbursement of the same.  The reimbursements
and  benefits  pursuant  to  this  Agreement  are  not  subject  to  liquidation  or  exchange  for  another  benefit  and  the  amount  of  such
reimbursements and benefits that the Executive receives in one taxable year shall not affect the amount of such reimbursements or
benefits that the Executive receives in any other taxable year.  To the extent that Section 409A of the Code is applicable to this
Agreement,  the  provisions  of  this  Agreement  shall  be  interpreted  as  necessary  to  comply  with  such  section  and  the  applicable
administrative guidance issued thereunder.

4.7

Other  Benefits.    This  Agreement  governs  the  rights  and  obligations  of  Executive  and  the  Company  with
respect to Executive’s Base Salary, initial stock option grant, benefits, and certain perquisites of employment.  Except as expressly
provided herein, Executive’s rights and obligations both during the term of his employment and thereafter with respect to his direct
and indirect ownership rights in the Company, and other benefits under the plans and programs maintained by the Company, shall
be governed by the separate agreements, plans and the other documents and instruments governing such matters.

ARTICLE 5

PROTECTION OF CONFIDENTIAL INFORMATION

5.1

PIIA.  Executive acknowledges and agrees that all compensation paid to Executive by the Company pursuant
to this Agreement is conditioned upon Executive signing a Proprietary Information and Inventions Agreement in the form attached
hereto  as  Exhibit  A,  which  is  incorporated  herein  by  this  reference.    Executive  hereby  covenants  to  abide  by  the  terms  and
conditions of the PIIA, including, but not limited to, the assignment of inventions and confidentiality provisions of the PIIA.

5.2

Remedies.    Executive  acknowledges  that  money  damages  would  not  be  sufficient  remedy  for  any  breach  of
this  Article  5  by  Executive,  and  the  Company  or  its  affiliates  shall  be  entitled  to  enforce  the  provisions  of  this  Article  5  by
terminating payments then owing to Executive under this Agreement or otherwise and to specific performance and injunctive relief
as remedies for such breach.  Such remedies shall not be deemed the exclusive remedies for a breach of this Article 5 but shall be in
addition to all remedies available at law or in equity, including the recovery of damages from Executive and his agents.

ARTICLE 6

NON-COMPETITION AND NON-SOLICITATION OBLIGATIONS

6.1

Non-Competition and Non-Solicitation Obligations.  As part of the consideration for the compensation and
benefits to be paid to Executive hereunder; to protect the trade secrets and confidential information of the Company that have been
or will in the future be disclosed or entrusted to Executive, the business good will of the Company and its affiliates that has been
and will in the future be developed in Executive, or the business opportunities that have been and will in the future be disclosed or
entrusted to Executive by the Company and its affiliates; the Company and Executive agree to the following provisions:

(i)

Executive  hereby  agrees  that  during  the  term  of  his  direct  or  indirect  employment  or  consulting

relationship with the Company (as the case may be), and for a

8

 
 
period of twelve (12) months following the termination of his employment or consulting relationship with the Company
(as the case may be) for any reason, Executive shall not directly or indirectly solicit, induce, recruit, hire or encourage any
of  the  Company’s  employees  or  consultants  to  terminate  their  relationship  with  the  Company,  or  attempt  any  of  the
foregoing, either for himself or any other person or entity.  For a period of twelve (12) months following termination of
Executive’s  employment  or  consulting  relationship  with  the  Company  (as  the  case  may  be)  for  any  reason,  Executive
hereby covenants not to solicit any licensor to or customer of the Company or licensee of the Company’s products, that
are  known  to  him  with  respect  to  any  business,  products  or  services  that  are  competitive  to  the  products  or  services
offered by the Company or under development as of the date of termination of his relationship with the Company.  In the
event  that  Executive’s  employment  with  the  Company  is  terminated  by  the  Company  without  Cause  or  if  Executive
resigns for Good Reason, then the twelve (12) month periods referenced above in this section shall each be reduced to six
(6) months.

(ii)

Executive  hereby  agrees  that  during  the  term  of  his  direct  or  indirect  employment  or  consulting
relationship  with  the  Company  (as  the  case  may  be)  and  for  twelve  (12)  months  following  the  termination  of  his
employment or consulting relationship with the Company (as the case may be) for any reason, he will not, without the
Company’s  prior  written  consent,  directly  or  indirectly  work  on  any  products  or  services  that  are  competitive  with
products  or  services  (a)  being  commercially  developed  or  exploited  by  the  Company  during  his  employment  or
consultancy with the Company (as the case may be) and (b) on which he worked or about which he learned Proprietary
Information (as defined in the PIIA) during his employment or consultancy with the Company (as the case may be).  In
the event that Executive’s employment with the Company is terminated by the Company without Cause or if Executive
resigns for Good Reason, then the twelve (12) month period referenced above in this section shall be reduced to six (6)
months.

6.2

Enforcement and Remedies.  Executive acknowledges that money damages would not be sufficient remedy
for  any  breach  of  this  Article  6  by  Executive,  and  the  Company  shall  be  entitled  to  enforce  the  provisions  of  this  Article  6  by
terminating any payments then owing to Executive under this Agreement and/or to specific performance and injunctive relief as
remedies for such breach.  Such remedies shall not be deemed the exclusive remedies for a breach of this Article 6, but shall be in
addition to all remedies available at law or in equity to the Company, including, without limitation, the recovery of damages from
Executive and Executive’s agents involved in such breach and remedies available to the Company pursuant to other agreements
with Executive.

6.3

Reformation.  It is expressly understood and agreed that the Company and Executive consider the restrictions
contained  in  this  Article  6  to  be  reasonable  and  necessary  to  protect  the  proprietary  information  of  the  Company  and  its
affiliates.  Nevertheless, if any of the aforesaid restrictions are found by a court having jurisdiction to be unreasonable, or overly
broad  as  to  geographic  area  or  time,  or  otherwise  unenforceable,  the  parties  intend  for  the  restrictions  therein  set  forth  to  be
modified by such courts so as to be reasonable and enforceable and, as so modified by the court, to be fully enforced.

9

 
 
ARTICLE 7

NONDISPARAGEMENT

Executive  agrees  not  to  disparage  the  Company,  any  of  its  products  or  practices,  or  any  of  its  directors,  officers,
employees,  agents,  representatives,  stockholders  or  affiliates,  either  orally  or  in  writing,  at  any  time  and  the  Company  and  its
Affiliates shall not and shall instruct members of the Board and executive officers of the Company not to disparage the Executive,
either orally or in writing, at any time; provided, that, either party may confer in confidence with its legal representatives and make
truthful statements as required by law or as required by any applicable rules of professional conduct.

ARTICLE 8

MISCELLANEOUS

8.1

Notices.  For purposes of this Agreement, notices and all other communications provided for herein shall be in
writing  and  shall  be  deemed  to  have  been  duly  given  when  personally  delivered  or  when  mailed  by  United  States  registered  or
certified mail, return receipt requested, postage prepaid, addressed as follows:

To the Company:

With copy to:

To Executive:

  Alpine Immune Sciences, Inc.
  201 Elliott Ave. W., Ste. 230
  Seattle, WA 98119

  Van Katzman
  Ascent Law Partners, LLP
  719 Second Ave, Ste. 1150
  Seattle, WA 98104

  Paul Rickey
  201 Elliott Ave. W., Ste 230
  Seattle, WA 98119

or to such other address as either party may furnish to the other in writing in accordance herewith, except that notices or changes of
address shall be effective only upon receipt.

8.2
the State of Washington.

Applicable Law.  This Agreement is entered into under, and shall be governed for all purposes by the laws of

8.3

No Waiver.  No failure by either party hereto at any time to give notice of any breach by the other party of, or
to  require  compliance  with,  any  condition  or  provision  of  this  Agreement  shall  be  deemed  a  waiver  of  similar  or  dissimilar
provisions or conditions at the same or at any prior or subsequent time.

8.4

Severability.  If a court of competent jurisdiction determines that any provision of this Agreement is invalid or
unenforceable, then the invalidity or unenforceability of that provision shall not affect the validity or enforceability of any other
provision of this Agreement, and all other provisions shall remain in full force and effect.

10

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
8.5

Counterparts.  This Agreement may be executed in one or more counterparts, each of which shall be deemed

to be an original, but all of which together will constitute one and the same agreement.

8.6

Withholding of Taxes and Other Employee Deductions.  The Company may withhold from any benefits and
payments made pursuant to this Agreement or otherwise all federal, state, city and other taxes as may be required pursuant to any
law or governmental regulation or ruling and all other normal employee deductions made with respect to the Company’s employees
generally.

8.7
interpretive purposes.

Headings.  The paragraph headings have been inserted for purposes of convenience and shall not be used for

8.8

Affiliate.   As  used  in  this  Agreement,  the  term  “affiliate”  shall  mean  any  entity  which  owns  or  controls,  is

owned or controlled by, or is under common ownership or control with, the Company.

8.9

Assignment.    This  Agreement  shall  be  binding  upon  and  inure  to  the  benefit  of  the  Company  and  any
successor of the Company, by merger or otherwise.  This Agreement shall also be binding and inure to the benefit of Executive and
his heirs.  Except as provided in the preceding sentence, this Agreement, and the rights and obligations of the parties hereunder, are
personal  and  neither  this  Agreement,  nor  any  right,  benefit,  or  obligation  of  either  party  hereto,  shall  be  subject  to  voluntary  or
involuntary assignment, alienation or transfer, whether by operation of law or otherwise, without the prior written consent of the
other party.

8.10

Term.    This  Agreement  has  a  term  co-extensive  with  the  term  of  employment  provided  in  Article
2.    Termination  shall  not  affect  any  right  or  obligation  of  any  party  which  is  accrued  or  vested  prior  to  such  termination.    The
provisions of paragraphs 2.5, 4.4 to 4.7 and Articles 5, 6, 7 and 8 shall survive any termination of this Agreement.

8.11

Entire Agreement.  This Agreement, together with the PIIA, the Amended and Restated 2015 Stock Plan and
the Stock Option Agreement, will constitute the entire agreement of the parties with regard to the subject matter hereof, and will
contain all the covenants, promises, representations, warranties and agreements between the parties with respect to employment of
Executive by the Company.  Without limiting the scope of the preceding sentence, all understandings and agreements preceding the
date  of  execution  of  this  Agreement  and  relating  to  the  subject  matter  hereof  are  as  of  the  Effective  Date  superseded  by  this
Agreement and null and void and of no further force and effect.  Any modification of this Agreement will be effective only if it is in
writing and signed by the party to be charged.

8.12

Liability  Insurance.    The  Company  may  maintain  a  directors’  and  officers’  insurance  liability  policy
throughout the term of this Agreement and may provide Executive with coverage under such policy consistent with those provided
to other the Company directors and officers.

11

 
 
8.13

Arbitration.

(i)

The  Company  and  Executive  agree  to  submit  to  final  and  binding  arbitration  any  and  all  disputes  or
disagreements  concerning  the  interpretation  or  application  of  this  Agreement,  the  termination  of  this  Agreement,  or  any  other
aspect  of  the  Executive’s  employment  relationship  with  Company.    Any  such  dispute  or  disagreement  will  be  resolved  by
arbitration  in  accordance  with  the  National  Rules  for  the  Resolution  of  Employment  Disputes  of  the  American  Arbitration
Association  before  a  single  arbitrator.   Arbitration  will  take  place  in  Seattle,  Washington,  unless  the  parties  mutually  agree  to  a
different location.  Company and Executive agree that the decision of the arbitrator will be final and binding on both parties.  Any
court having jurisdiction may enter a judgment upon the award rendered by the arbitrator.  The costs of the proceedings shall be
borne equally by the parties unless the arbitrator orders otherwise.

(ii)

Notwithstanding  the  provisions  of  paragraph  8.13(i),  Company  may,  if  it  so  chooses,  bring  an  action  in  any
court of competent jurisdiction for temporary or preliminary injunctive relief to enforce Executive’s obligations under Articles 5
(including the PIIA), 6 or 7 hereof, pending a decision by the arbitrator in accordance with paragraph 8.13(i).

[Signature page follows.]

12

 
 
IN WITNESS WHEREOF, the parties hereto have executed this Agreement to be effective as of the Effective Date.

EXECUTIVE:

PAUL RICKEY,
an individual

By:
Name:

 /s/ Paul Rickey
 Paul Rickey

COMPANY:

ALPINE IMMUNE SCIENCES, INC.,
a Delaware corporation

By:
Name:
Its:

 /s/ Dr. Mitchell H. Gold
 Dr. Mitchell H. Gold
 Chief Executive Officer

 
 
   
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
  
 
 
 
 
EXHIBIT A

PIIA

 
 
 
ALPINE IMMUNE SCIENCES, INC.

PROPRIETARY INFORMATION AND INVENTIONS AGREEMENT

In  exchange  for  my  becoming  employed  (or  my  employment  being  continued),  or  retained  as  a  consultant,  officer  or
director (or such relationship being continued), as the case may be, by Alpine Immune Sciences, Inc., a Delaware corporation, or its
subsidiaries, affiliates, predecessors, or successors (collectively, the “Company”), and for any cash and/or equity compensation for
my services, I hereby agree as follows:

1.

Duties.    I  will  perform  for  the  Company  such  duties  as  may  be  designated  by  the  Company  from  time  to
time.  During my period of employment or consulting relationship with the Company (as the case may be), I will devote my best
efforts to the interests of the Company and will not engage in other employment or in any activities detrimental to the best interests
of the Company without the prior written consent of the Company.

2.

Confidentiality Obligation.  I understand and agree that all Proprietary Information (as defined below) shall be
the  sole  property  of  the  Company  and  its  assigns,  including  all  trade  secrets,  patents,  copyrights  and  other  rights  in  connection
therewith.  I hereby assign to the Company any rights I may acquire in such Proprietary Information.  I will hold in confidence and
not directly or indirectly use or disclose, both during my employment by, or consulting relationship with, the Company (as the case
may  be)  and  after  its  termination  (regardless  of  the  reason  for  such  termination),  any  Proprietary  Information  I  obtain  or  create
during  the  period  of  my  employment  or  consulting  relationship,  whether  or  not  during  working  hours,  except  to  the  extent
authorized  by  the  Company,  until  such  Proprietary  Information  becomes  generally  known.    I  agree  not  to  make  copies  of  such
Proprietary Information except as authorized by the Company.  Upon termination of my employment or consulting relationship (as
the  case  may  be)  or  upon  an  earlier  request  of  the  Company,  I  will  return  or  deliver  to  the  Company  all  tangible  forms  of  such
Proprietary  Information  in  my  possession  or  control,  including  but  not  limited  to  drawings,  specifications,  documents,  records,
devices, models or any other material and copies or reproductions thereof.

3.

Ownership of Physical Property.  All documents, apparatus, equipment and other physical property in any form,
whether or not pertaining to Proprietary Information, furnished to me by the Company or produced by me or others in connection with
my employment or consulting relationship (as the case may be) shall be and remain the sole property of the Company.  I shall return to
the Company all such documents, materials and property as and when requested by the Company, except only (a) my personal copies
of records relating to my compensation, (b) if applicable, my personal copies of any materials evidencing shares of the Company’s
capital stock purchased by me and/or options to purchase shares of the Company’s capital stock granted to me, (c) my copy of this
Agreement  and  (d)  my  personal  property  and  personal  documents  I  brought  with  me  to  the  Company  and  any  personal
correspondence and personal materials that I accumulated and kept at my office during my employment or consulting relationship (as
the case may be) (my “Personal Documents”).  Even if the Company does not so request, I shall return all such documents, materials
and property upon termination of my employment or consulting relationship (as the case may be), and, except for

Exhibit A-1

 
 
my Personal Documents, I will not take with me any such documents, material or property or any reproduction thereof upon such
termination.

4.

Assignment of Inventions.

(a)

Without further compensation, I hereby agree promptly to disclose to the Company, all Inventions (as
defined  below)  which  I  may  solely  or  jointly  develop  or  reduce  to  practice  during  or  prior  to  the  period  of  my  employment  or
consulting relationship with the Company (as the case may be) which (a) pertain to any line of business activity of the Company,
(b) are aided by the use of time, material or facilities of the Company, whether or not during working hours or (c) relate to any of
my work during the period of my employment or consulting relationship with the Company (as the case may be), whether or not
during normal working hours (“Company Inventions”).  During the term of my employment or consulting relationship (as the case
may be), all Company Inventions that I conceive, reduce to practice, develop or have developed (in whole or in part, either alone or
jointly with others) shall be the sole property of the Company and its assigns to the maximum extent permitted by law (and to the
fullest extent permitted by law shall be deemed “works made for hire”), and the Company and its assigns shall be the sole owner of
all  patents,  copyrights,  trademarks,  trade  secrets  and  other  rights  in  connection  therewith.    I  hereby  assign  to  the  Company  any
rights that I may have or acquire in such Company Inventions.

(b)

I  attach  hereto  as  Exhibit  A  a  complete  list  of  all  Inventions,  if  any,  made  by  me  prior  to  my
employment or consulting relationship with the Company that are relevant to the Company’s business, and I represent and warrant
that such list is complete.  If no such list is attached to this Agreement, I represent that I have no such Inventions at the time of
signing this Agreement.  If in the course of my employment or consulting relationship with the Company (as the case may be), I
use or incorporate into a product or process an Invention not covered by Section 4(a) of this Agreement in which I have an interest,
the Company is hereby granted a nonexclusive, fully paid-up, royalty-free, perpetual, worldwide license of my interest to use and
sublicense such Invention without restriction of any kind.

NOTICE REQUIRED BY REVISED CODE OF WASHINGTON 49.44.140:

Any  assignment  of  Inventions  required  by  this  Agreement  does  not  apply  to  an  Invention  for  which  no  equipment,
supplies, facility, or trade secret information of the Company was used and which was developed entirely on the employee’s own
time, unless (a) the Invention relates (i) directly to the business of the Company or (ii) to the Company’s actual or demonstrably
anticipated research or development, or (b) the Invention results from any work performed by the employee for the Company.

5.

Further Assistance; Power of Attorney.  I agree to perform, during and after my employment or consulting
relationship with the Company (as the case may be), all acts deemed necessary or desirable by the Company to permit and assist it,
at  its  expense,  in  obtaining  and  enforcing  the  full  benefits,  enjoyment,  rights  and  title  throughout  the  world  in  the  Inventions
assigned to the Company as set forth in Section 4 above.  Such acts may include, but are not limited to, execution of documents and
assistance or cooperation in legal proceedings.  I hereby irrevocably

Exhibit A-2

 
 
designate  the  Company  and  its  duly  authorized  officers  and  agents  as  my  agent  and  attorney-in  fact,  to  execute  and  file  on  my
behalf any such applications and to do all other lawful acts to further the prosecution and issuance of patents, copyright and mask
work registrations related to such Inventions.  This power of attorney shall not be affected by my subsequent incapacity.

6.

Inventions.    As  used  in  this  Agreement,  the  term  “Inventions”  means  discoveries,  developments,  concepts,
designs, ideas, know-how, improvements, inventions, trade secrets and/or original works of authorship, whether or not patentable,
copyrightable  or  otherwise  legally  protectable.    This  includes,  but  is  not  limited  to,  any  new  product,  machine,  article  of
manufacture,  biological  material,  method,  procedure,  process,  technique,  use,  equipment,  device,  apparatus,  system,  compound,
formulation, composition of matter, design or configuration of any kind, or any improvement thereon.

7.

Proprietary Information.  As used in this Agreement, the term “Proprietary Information” means information or
physical  material  not  generally  known  or  available  outside  the  Company  or  information  or  physical  material  entrusted  to  the
Company  by  third  parties.    This  includes,  but  is  not  limited  to,  Inventions,  confidential  knowledge,  copyrights,  product  ideas,
techniques, processes, formulas, object codes, biological materials, mask works and/or any other information of any type relating to
documentation, 
laboratory  notebooks,  data,  schematics,  algorithms,  flow  charts,  mechanisms,  research,  manufacture,
improvements, assembly, installation, marketing, forecasts, sales, pricing, customers, customer lists, customer data, including but
not limited to customers’ personally identifiable information, the salaries, duties, qualifications, performance levels and terms of
compensation  of  other  employees,  and/or  cost  or  other  financial  data  concerning  any  of  the  foregoing  or  the  Company  and  its
operations.  Proprietary Information may be contained in material such as drawings, samples, procedures, specifications, reports,
studies,  customer  or  supplier  lists,  budgets,  cost  or  price  lists,  compilations  or  computer  programs,  or  may  be  in  the  nature  of
unwritten knowledge or know-how.

8.

No  Conflicts.    I  represent  that  my  performance  of  all  the  terms  of  this  Agreement  as  an  employee  of  or
consultant  to  the  Company  (as  the  case  may  be)  does  not  and  will  not  breach  any  agreement  to  keep  in  confidence  proprietary
information, knowledge or data acquired by me in confidence or in trust prior to my becoming an employee or consultant of the
Company  (as  the  case  may  be),  and  I  will  not  disclose  to  the  Company,  or  induce  the  Company  to  use,  any  confidential  or
proprietary  information  or  material  belonging  to  any  previous  employer  or  others.    I  agree  not  to  enter  into  any  written  or  oral
agreement that conflicts with the provisions of this Agreement.

9.

No  Interference.    I  certify  that  I  am  not  a  party  to  any  other  agreement  which  will  interfere  with  my  full

compliance with this Agreement.

10.

Effects of Agreement.  This Agreement (a) shall survive for a period of five (5) years beyond the termination
of my employment by or consulting relationship with the Company (as the case may be), (b) inures to the benefit of successors and
assigns of the Company and (c) is binding upon my heirs and legal representatives.

Exhibit A-3

 
 
11.

At-Will Relationship.  I understand and acknowledge that my employment or consulting relationship with the
Company  (as  the  case  may  be)  is  and  shall  continue  to  be  at-will,  as  defined  under  applicable  law,  meaning  that  either  I  or  the
Company may terminate the relationship at any time for any reason or no reason, without further obligation or liability.

12.

Injunctive Relief.  I acknowledge that violation of this Agreement by me may cause irreparable injury to the
Company,  and  I  agree  that  the  Company  will  be  entitled  to  seek  extraordinary  relief  in  court,  including,  but  not  limited  to,
temporary restraining orders, preliminary injunctions and permanent injunctions without the necessity of posting a bond or other
security and without prejudice to any other rights and remedies that the Company may have for a breach of this Agreement.

13.

Miscellaneous.  This Agreement, the Employment Agreement between the parties to which this Agreement is
referred,  if  any,  the  Offer  Letter  between  the  parties  to  which  this  Agreement  is  referred,  if  any,  the  Independent  Contractor
Agreement to which this Agreement is referred, if any, the Intellectual Property Assignment Agreement between the parties, if any,
and the exhibits to this Agreement constitute the entire understanding and agreement of the parties to this Agreement concerning
the subject matter of this Agreement and supersede any oral, written or other communications or agreements concerning the subject
matter of this Agreement.  This Agreement may be amended or waived only by a written instrument signed by me and the President
of the Company.  This Agreement shall be governed by the laws of the State of Washington applicable to contracts entered into and
performed entirely within the State of Washington, without giving effect to principles of conflict of laws.  If any provision of this
Agreement is held to be unenforceable under applicable law, then such provision shall be excluded from this Agreement only to the
extent unenforceable, and the remainder of such provision and of this Agreement shall be enforceable in accordance with its terms.

14.

Acknowledgment.  I certify and acknowledge that I have carefully read all of the provisions of this Agreement

and that I understand and will fully and faithfully comply with such provisions.

[Signature Page to Follow]

Exhibit A-4

 
 
 
 
ALPINE IMMUNE SCIENCES, INC.,
a Delaware corporation an individual

PAUL RICKEY,
an individual

By:
Name:
Its:

 /s/ Dr. Mitchell H. Gold
 Dr. Mitchell H. Gold
 Chief Executive Officer

By:
Name:

 /s/ Paul Rickey
 Paul Rickey

Dated as of: April 1, 2017

Dated as of: April 1, 2017

Exhibit A-1

 
 
 
 
 
  
 
 
  
 
  
 
 
  
 
 
 
 
  
 
  
 
 
  
 
 
 
 
 
 
   
 
 
 
 
Exhibit A

Alpine Immune Sciences, Inc.
201 Elliott Ave. W., Ste. 230
Seattle, WA 98119

Ladies and Gentlemen:

1.

The  following  is  a  complete  list  of  all  Inventions  relevant  to  the  subject  matter  of  my  employment  by  the
Company that have been made or conceived or first reduced to practice by me, alone or jointly with others or which has become
known to me prior to my employment by the Company. I represent that such list is complete.

None.

2.

I  propose  to  bring  to  my  employment  or  consultancy  the  following  materials  and  documents  of  a  former

employer:

  No materials or documents.
  See below:

/s/ Paul Rickey
Paul Rickey, an individual

Exhibit A-1

 
 
 
 
 
 
 
 
 
ALPINE IMMUNE SCIENCES, INC.
AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT

Exhibit 10.35

THIS  AMENDED  AND  RESTATED  EXECUTIVE  EMPLOYMENT  AGREEMENT  (the  “Agreement”)  is  entered  into  as  of
January 1, 2018 (the “Effective Date”) between Alpine Immune Sciences, Inc. (the “Company”), and Paul Rickey (“Executive”) (collectively
referred to as the “Parties” or individually as a “Party”).

R E C I T A L S

WHEREAS, the Company desires to continue to employ Executive as its Senior Vice President and Chief Financial Officer, and to

enter into an agreement embodying the terms of such continued at-will employment;

WHEREAS, Executive desires to accept such continued employment and enter into such an agreement.

A G R E E M E N T

NOW, THEREFORE, in consideration of the premises and mutual covenants herein and for other good and valuable consideration,

the Parties agree as follows:

1.

Duties and Scope of Employment.

(a)

Positions and Duties. As of the Effective Date, Executive will continue to serve as Senior Vice President and Chief
Financial  Officer  of  the  Company,  subject  to  the  terms  and  conditions  of  this  Agreement.  Executive  will  continue  to  render  such  business  and
professional services in the performance of his duties, consistent with Executive’s position within the Company, as shall continue to be reasonably
be assigned to him by the Company and, as such, from and after the date hereof, shall report directly to and shall be subject to the direction of the
Chief Executive Officer. The period of Executive’s continued at-will employment under the terms of this Agreement is referred to herein as the
“Employment Term.”

(b)

Obligations. During the Employment Term, Executive will continue to perform his duties faithfully and to the
best of his ability and will continue to devote his full business efforts and time to the Company. For the duration of the Employment Term, and
as  before,  Executive  agrees  not  to  actively  engage  in  any  other  employment,  occupation  or  consulting  activity  for  any  direct  or  indirect
remuneration without the prior written approval of the Board.

2.

At-Will Employment. Subject to Sections 6 below, the parties agree that Executive's employment with the Company will
continue to be “at-will” employment and, as such, may be terminated at any time with or without cause or notice, for any reason or no reason.
Executive further understands and agrees that, as before, neither his job performance nor promotions, commendations, bonuses or the like from
the  Company  give  rise  to  or  in  any  way  serve  as  the  basis  for  modification,  amendment,  or  extension,  by  implication  or  otherwise,  of  his
employment with the Company.

3.

Compensation.

a base salary at a rate of $335,000 per year, as modified from time to time

(a)

Base Salary. During the Employment Term, the Company will pay Executive as compensation for his services

-1-

 
 
at the discretion of the Board or a duly constituted committee of the Board (the “Base Salary”). The Base Salary, as before, will be paid in
regular installments in accordance with the Company’s normal payroll practices (subject to required withholding). Any modification in Base
Salary (together with the then existing Base Salary) shall serve as the “Base Salary” for future employment under this Agreement. The first and
last  payment  will  be  adjusted,  if  necessary,  to  reflect  a  commencement  or  termination  date  other  than  the  first  or  last  working  day  of  a  pay
period.

(b)

Annual  Bonus.  During  the  Employment  Term,  for  each  calendar  year,  Executive  shall  be  eligible  to  earn  an
annual discretionary bonus based upon the achievement of certain Company and individual goals as determined by the Company in its discretion
after consultation with Executive (the “Annual Bonus”). The Board will determine in its discretion whether the performance objectives for any
Annual Bonus have been achieved. In connection with the Annual Bonus, subject to the corresponding performance levels being achieved, the
Executive shall be eligible for an annual target bonus of up to 35% of the Executive’s Base Salary (the “Target Bonus”) with an annual maximum
bonus equal to 100% of the Target Bonus. The Board does, however, retain the option of increasing the Annual Bonus in any given year by an
additional  discretionary  amount  in  the  event  Executive  significantly  exceeds  the  above-referenced  performance  objectives  for  that  year,  as
determined, in all cases, by the Board in its sole discretion. Any such Annual Bonus (including any additional discretionary increase, if awarded by
the Board) will be determined and, to the extent earned, paid on an annual basis, at the time and manner in which such bonuses are normally paid
to employees at Executive’s level, but in no event will such payment be made later than March 15 of the year following the year such Annual
Bonus was earned. Receipt of any Annual Bonus is contingent upon Executive’s continued employment with the Company through the date the
Annual Bonus is earned and any Annual Bonus for a calendar year will not be considered earned if Executive is terminated prior to December 1.
No  “pro-rated”  or  partial  bonus  will  be  provided  in  the  event  of  Executive’s  earlier  separation  from  employment,  except  as  provided  by  this
Agreement.

(c)

Equity. The  Executive  acknowledges  and  agrees  that  Executive  has  been  previously  awarded  the  options  to
purchase  shares  of  the  Company’s  common  stock  detailed  in  Schedule  1  hereto,  subject  to  the  terms,  definitions  and  conditions,  including
vesting  requirements,  of  the  relevant  stock  option  agreements  between  Executive  and  the  Company  (the  “Option  Agreements”)  and  the
Company’s Amended and Restated 2015 Stock Plan and 2015 Equity Incentive Plan, as applicable (the “Equity Plan”).

4.

Employee Benefits. During the Employment Term, Executive will be continue to be eligible to participate in the employee
benefit  plans  currently  and  hereafter  maintained  by  the  Company  of  general  applicability  to  similarly-situated  senior  executives  of  the
Company, subject to the terms and conditions of the applicable policies. The Company, as before, reserves the right to cancel or change the
benefit plans and programs it offers to its employees at any time.

5.

Business Expenses. During the Employment Term, the Company will reimburse Executive for reasonable business travel,
entertainment  or  other  business  expenses  incurred  by  Executive  in  the  furtherance  of  or  in  connection  with  the  performance  of  Executive’s
duties hereunder, in accordance with the Company’s expense reimbursement policy as in effect from time to time. Except as expressly provided
otherwise  herein,  no  reimbursement  payable  to  the  Executive  pursuant  to  any  provision  of  this  Agreement  or  pursuant  to  any  plan  or
arrangement of the Company shall be paid later than the last day of the calendar year following the calendar year in which the related expense
was incurred, and no such reimbursement during any calendar year shall affect the amounts eligible for reimbursement in any other calendar
year, except, in each case, to the extent that the right to reimbursement does not provide for a “deferral of compensation” within the meaning of
Section  409A  of  the  Internal  Revenue  Code  of  1986,  as  amended  (the  “Code”),  and  the  final  regulations  and  any  formal  guidance  issued
thereunder (“Section 409A”).

-2-

 
 
6.

Termination and Severance. As discussed above, the Company shall be entitled to terminate Executive at any time and for
any  reason,  and  Executive  shall  be  entitled  to  resign  at  any  time  and  for  any  reason.  Executive may, however, be entitled to receive certain
severance  benefits  in  connection  with  his  separation  from  employment  under  the  Company’s  Change  of  Control  and  Severance  Policy  (the
“Severance  Policy”).  Any  such  severance,  if  applicable,  will  be  subject  to  the  terms  and  conditions  of  the  Severance  Policy,  as  may  be
amended or modified from time to time.

7.

Company Matters.

(a)

Proprietary  Information  and  Inventions.  Executive  acknowledges  and  agrees  that,  as  a  condition  of  his
continued  employment,  he  is  required  to  sign  and  abide  by  the  terms  of  the  At-Will  Employment,  Confidential  Information,  Invention
Assignment, and Arbitration Agreement (the “Confidentiality Agreement”), including the arbitration agreement and provisions governing the
nondisclosure  of  confidential  information  and  restrictive  covenants  contained  therein.  A  copy  of  the  Confidentiality  Agreement  is  attached
hereto as Exhibit A.

(b)

Ventures. If,  during  his  employment  and  as  before,  Executive  is  engaged  in  or  associated  with  planning  or
implementing of any project, program or venture involving the Company and any third parties, all rights in such project, program or venture
shall  belong  to  the  Company  (or  third  party,  to  the  extent  provided  in  any  agreement  between  the  Company  and  the  third  party).  Except  as
approved  by  the  Board  in  writing,  Executive  shall  not  be  entitled  to  any  interest  in  such  project,  program  or  venture  or  to  any  commission,
finder’s fee or other compensation in connection therewith other than the salary or other compensation to be paid to Executive as provided in
this Agreement.

Notification  of  New  Employer.  In  the  event  that  Executive  leaves  the  employ  of  the  Company,  Executive
grants  consent  to  notification  by  the  Company  to  Executive’s  new  employer  about  his  rights  and  obligations  under  this  Agreement  and  the
Confidentiality Agreement.

(c)

8.

ARBITRATION. IN CONSIDERATION OF EXECUTIVE’S EMPLOYMENT WITH THE COMPANY, ITS PROMISE
TO ARBITRATE ALL EMPLOYMENT-RELATED DISPUTES AND EXECUTIVE’S RECEIPT OF THE COMPENSATION, PAY RAISES
AND OTHER BENEFITS PAID TO EXECUTIVE BY THE COMPANY, AT PRESENT AND IN THE FUTURE, EXECUTIVE AGREES
THAT  ANY  AND  ALL  CONTROVERSIES,  CLAIMS,  OR  DISPUTES  WITH  ANYONE  (INCLUDING  THE  COMPANY  AND  ANY
EMPLOYEE, OFFICER, DIRECTOR, SHAREHOLDER OR BENEFIT PLAN OF THE COMPANY, IN THEIR CAPACITY AS SUCH OR
OTHERWISE),  ARISING  OUT  OF,  RELATING  TO,  OR  RESULTING  FROM  EXECUTIVE’S  EMPLOYMENT  WITH  THE  COMPANY
OR  THE  TERMINATION  OF  EXECUTIVE’S  EMPLOYMENT  WITH  THE  COMPANY,  INCLUDING  ANY  BREACH  OF  THIS
AGREEMENT, SHALL BE SUBJECT TO BINDING ARBITRATION, AS SET FORTH IN THE CONFIDENTIALITY AGREEMENT.

9.

Assignment.  This  Agreement  will  be  binding  upon  and  inure  to  the  benefit  of  (a)  the  heirs,  executors  and  legal
representatives of Executive upon Executive's death and (b) any successor of the Company. Any such successor of the Company will be deemed
substituted for the Company under the terms of this Agreement for all purposes. For this purpose, “successor” means any person, firm, corporation
or other business entity which at any time, whether by purchase, merger or otherwise, directly or indirectly acquires all or substantially all of the
assets or business of the Company. None of the rights of Executive to receive any form of compensation payable pursuant to this Agreement may
be assigned or transferred except by will or the laws of descent and distribution. Any other attempted assignment, transfer, conveyance or other
disposition of Executive’s right to compensation or other benefits will be null and void.

-3-

 
 
10.

Notices. All notices, requests, demands and other communications called for under this Agreement shall be in writing
and shall be delivered personally by hand or by courier, mailed by United States first-class mail, postage prepaid, or sent by facsimile directed
to the Party to be notified at the address or facsimile number indicated for such Party on the signature page to this Agreement, or at such other
address or facsimile number as such Party may designate by ten (10) days’ advance written notice to the other Parties hereto. All such notices
and  other  communications  shall  be  deemed  given  upon  personal  delivery,  three  (3)  days  after  the  date  of  mailing,  or  upon  confirmation  of
facsimile transfer.

11.

Severability. In  the  event  that  any  provision  hereof  becomes  or  is  declared  by  a  court  of  competent  jurisdiction  to  be

illegal, unenforceable or void, this Agreement will continue in full force and effect without said provision.

12.

Integration.  This  Agreement,  together  with  the  Severance  Policy,  the  Equity  Plans,  the  Option  Agreements  and  the
Confidentiality  Agreement,  represents  the  entire  agreement  and  understanding  between  the  parties  as  to  the  subject  matter  herein  and
supersedes all prior or contemporaneous agreements whether written or oral, including the Employment Agreement, dated April 1, 2017 by and
between the Company and Executive (the “Prior Employment Agreement”). The  Executive  and  Company  acknowledge  and  agree  that  the
Prior Employment Agreement shall be of no further force and effect. No  waiver,  alteration,  or  modification  of  any  of  the  provisions  of  this
Agreement will be binding unless in writing and signed by duly authorized representatives of the parties hereto.

13.

Tax Withholding. All payments, as before, made pursuant to this Agreement will be subject to withholding of applicable

taxes.

14.

Waiver. No Party shall be deemed to have waived any right, power or privilege under this Agreement or any provisions
hereof unless such waiver shall have been duly executed in writing and acknowledged by the Party to be charged with such waiver. The failure
of any Party at any time to insist on performance of any of the provisions of this Agreement shall in no way be construed to be a waiver of such
provisions, nor in any way to affect the validity of this Agreement or any part hereof. No waiver of any breach of this Agreement shall be held
to be a waiver of any other subsequent breach

15.
conflict of law provisions).

Governing Law. This  Agreement  will  be  governed  by  the  laws  of  the  State  of  Washington  (with  the  exception  of  its

16.

Conflict Waiver. Each of the Parties to this Agreement understands that Wilson Sonsini Goodrich & Rosati, Professional
Corporation (“WSGR”) is serving as counsel to the Company in connection with the transactions contemplated hereby, and that discussion of
such  transactions  with  Executive  could  be  construed  to  create  a  conflict  of  interest.  By  executing  this  Agreement,  the  Parties  hereto
acknowledge the potential conflict of interest and waive the right to claim any conflict of interest at a later date. Furthermore, by executing this
Agreement, the Parties acknowledge that if a conflict of interest exists and any litigation arises between Executive and the Company, WSGR
would represent the Company. Executive represents and warrants that he has had the opportunity to seek independent counsel in his review of
this and all related agreements and that he is not relying on WSGR for any legal, tax or other advice relating to such agreements.

17.

Acknowledgment. Executive acknowledges that he has had the opportunity to discuss this matter with and obtain advice
from  his  legal  counsel,  has  had  sufficient  time  to,  and  has  carefully  read  and  fully  understands  all  the  provisions  of  this  Agreement,  and  is
knowingly and voluntarily entering into this Agreement. Executive further acknowledges and agrees that, as of the date hereof, the Company
has paid or provided all earned salary, wages, bonuses, accrued vacation/paid time off, leave, allowances,

-4-

 
 
reimbursable  expenses,  commissions,  stock,  stock  options,  vesting,  and  any  and  all  other  benefits  and  compensation  that  may  be  due  to
Executive.

18.

Counterparts.  This  Agreement  may  be  executed  in  multiple  counterparts,  each  of  which  shall  be  deemed  to  be  an

original, and all such counterparts shall constitute but one instrument.

19.
the construction hereof.

Effect of Headings. The section and subsection headings contained herein are for convenience only and shall not affect

20.

Construction of Agreement. This Agreement has been negotiated by the respective Parties, and the language shall not be

construed for or against either Party.

21.

Section 409A. The Section 409A paragraph of the Severance Policy are incorporated herein by reference.

22.

Protected  Activity  Not  Prohibited.  Executive  understands  that  nothing  in  this  Agreement,  or  any  other  agreement  or
policy  with  or  by  the  Company,  shall  in  any  way  limit  or  prohibit  Executive  from  engaging  in  any  Protected  Activity.  For  purposes  of  this
Agreement,  “Protected  Activity”  shall  mean  filing  a  charge,  complaint,  or  report  with,  or  otherwise  communicating,  cooperating,  or
participating  in  any  investigation  or  proceeding  that  may  be  conducted  by,  any  federal,  state  or  local  government  agency  or  commission,
including  the  Securities  and  Exchange  Commission,  the  Equal  Employment  Opportunity  Commission,  the  Occupational  Safety  and  Health
Administration,  and  the  National  Labor  Relations  Board  (“Government  Agencies”).  Executive  understands  that  in  connection  with  such
Protected  Activity,  Executive  is  permitted  to  disclose  documents  or  other  information  as  permitted  by  law,  and  without  giving  notice  to,  or
receiving authorization from, the Company. Notwithstanding the foregoing, Executive agrees to take all reasonable precautions to prevent any
unauthorized use or disclosure of any information that may constitute Company confidential information under the Confidentiality Agreement
to any parties other than the Government Agencies. Executive further understands that “Protected Activity” does not include the disclosure of
any Company attorney-client privileged communications. Any language in the Confidentiality Agreement, or any other agreement or policy of
the Company, regarding Executive’s right to engage in Protected Activity that conflicts with, or is contrary to, this paragraph is superseded by
this provision. In addition, pursuant to the Defend Trade Secrets Act of 2016, Executive is notified that an individual will not be held criminally
or civilly liable under any federal or state trade secret law for the disclosure of a trade secret that (a) is made in confidence to a federal, state, or
local government official (directly or indirectly) or to an attorney solely for the purpose of reporting or investigating a suspected violation w, or
(b) is made in a complaint or other document filed in a lawsuit or other proceeding, if (and only if) such filing is made under seal. In addition,
an individual who files a lawsuit for retaliation by an employer for reporting a suspected violation of law may disclose the trade secret to the
individual’s  attorney  and  use  the  trade  secret  information  in  the  court  proceeding,  if  the  individual  files  any  document  containing  the  trade
secret under seal and does not disclose the trade secret, except pursuant to court order.

23.

Clawback  Provisions.  Notwithstanding  any  other  provisions  in  this  Agreement  to  the  contrary,  any  incentive-based
compensation,  or  any  other  compensation,  paid  to  Executive  pursuant  to  this  Agreement  or  any  other  agreement  or  arrangement  with  the
Company or any of its affiliates, which is subject to recovery under any law, government regulation or stock exchange listing requirement, will
be  subject  to  such  deductions  and  clawback  as  may  be  required  to  be  made  pursuant  to  such  law,  government  regulation  or  stock  exchange
listing requirement (or any policy adopted by the Company or any of their affiliates pursuant to any such law, government regulation or stock
exchange listing requirement), including for any violations of the Confidentiality Agreement, if applicable.

[Remainder of page is intentionally blank; Signature page follows]

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IN WITNESS WHEREOF, each of the Parties has executed this Agreement as of the day and year first above written.

“COMPANY”

ALPINE IMMUNE SCIENCES, INC.

By:
Name:
Its:

  /s/ Mitchell Gold
  Mitchell Gold
  Chief Financial Officer

Address:

  201 Elliott Avenue West, Suite 230
  Seattle, WA 98119

Fax Number:

“EXECUTIVE”

PAUL RICKEY

/s/ Paul Rickey
Paul Rickey

Address:

Fax Number:

AMENDED AND RESTATED EXECUTIVE
EMPLOYMENT AGREEMENT SIGNATURE PAGE

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Grant Date
04/12/2017
4/12/2017
01/02/2018

Number of Shares
63,434
11,101
45,000

SCHEDULE 1

Vesting
Commencement Date
04/01/2017
04/01/2017
01/02/2018

Exercise Price
$5.02
$5.02
$11.31

Vesting
Schedule
(1)
(1)
(1)

(1)

1/4th of the shares shall vest on the one-year anniversary of the Vesting Commencement Date, and 1/36th of the remaining shares shall
vest  on  each  monthly  anniversary  thereafter,  such  that  100%  of  the  shares  shall  be  fully  vested  and  exercisable  as  of  the  4-year
anniversary of the Vesting Commencement Date.

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EXHIBIT A

(CONFIDENTIALITY AGREEMENT)

 
 
EMPLOYMENT AGREEMENT

Exhibit 10.36

This  Employment  Agreement  (“Agreement”)  is  made  as  of  August  14,  2016,  by  and  between  Alpine  Immune  Sciences,  Inc.,  a
Delaware  corporation  (“Company”),  and  Dr.  Stanford  Peng,  MD,  an  individual  (“Executive”).    Each  of  Company  and  Executive  may  be
referred to individually as a “party” or collectively as the “parties.”

WHEREAS, the parties are entering into this Agreement in order to set forth the terms and conditions under which the Executive

shall be employed by Company.

WITNESSETH:

NOW, THEREFORE, for and in consideration of the mutual promises, covenants and obligations contained herein, Company and

Executive agree as follows:

AGREEMENT:

ARTICLE 1
EMPLOYMENT AND DUTIES

1.1

Employment;  Effective  Date.    Executive’s  employment  with  the  Company  shall  commence  as  of  September  6,  2016
(the “Effective Date”).  Effective as of the Effective Date, and continuing until the time set forth in Article 2 of this Agreement, Executive’s
employment by Company shall be subject to the terms and conditions of this Agreement.

1.2

Position.    From  and  after  the  Effective  Date,  Company  shall  employ  Executive  as  the  Chief  Medical  Officer  of

Company, reporting to the CEO of Company.

1.3

Duties and Services.  Executive agrees to serve Company as the Chief Medical Officer, and to perform diligently and to
the best of his abilities the duties and services appertaining to such office, as well as such additional duties and services appropriate to such
office which the parties mutually may agree upon from time to time.  Executive’s employment shall also be subject to the policies maintained
and established by Company that are of general applicability to Company’s executive employees, as such policies may be amended from time
to time.

1.4

Other Interests.  Executive agrees, during the period of his employment by Company, to devote substantially all of his
business time, energy and best efforts to the business and affairs of Company and its affiliates and not to engage, directly or indirectly, in any
other  business  or  businesses,  whether  or  not  similar  to  that  of  Company,  except  with  the  consent  of  the  Company’s  board  of  directors  (the
“Board”), which consent shall not be unreasonably withheld.  The foregoing notwithstanding, the parties recognize and agree that Executive
may engage in charitable and civic pursuits without the consent of the Board, as long as Executive is not actively involved in the operation of
such  businesses  and  such  pursuits  do  not  conflict  with  the  business  and  affairs  of  Company  or  its  affiliates  or  interfere  with  Executive’s
performance of his duties hereunder, which shall be in the determination of the Board whose approval shall not be unreasonably withheld.

1.5

Duty of Loyalty.  Executive acknowledges and agrees that Executive owes a fiduciary duty of loyalty to act at all times

in the best interests of Company.  In keeping with such duty, Executive

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shall make full disclosure to Company of all business opportunities pertaining to Company’s business and shall not appropriate for Executive’s
own benefit business opportunities concerning Company’s business.

ARTICLE 2
TERM AND TERMINATION OF EMPLOYMENT

2.1

Term.  The initial term of employment under this Agreement (the “Initial Term”) shall be for the period beginning on the
Effective  Date  and  ending  on  the  third  (3rd)  anniversary  of  the  Effective  Date,  unless  earlier  terminated  as  provided  in  paragraph  2.2.   The
employment term hereunder shall automatically be extended for successive one (1)-year periods commencing with the third (3rd) anniversary of
the Effective Date (“Extension Terms”  and,  collectively  with  the  Initial  Term,  the  “Term”)  unless  earlier  terminated  in  accordance  with  this
Agreement.

2.2

Company’s  Right  to  Terminate.    Notwithstanding  the  provisions  of  paragraph,  Company  shall  have  the  right  to

terminate Executive’s employment under this Agreement for any of the following reasons:

(i)

upon Executive’s death;

(ii)

upon Executive’s disability, which shall mean Executive’s becoming incapacitated by accident, sickness,
or other circumstances which renders him mentally or physically incapable of performing the duties and services required of him
hereunder for ninety (90) or more days (whether or not consecutive) out of any consecutive one hundred eighty (180)-day period,
unless any of the days would constitute leave under the Family and Medical Leave Act;

(iii)

for  “Cause,”  which  shall  mean  Executive  has  (A)  engaged  in  gross  negligence,  gross  incompetence  or
willful  misconduct  in  the  performance  of  the  duties  required  of  him  hereunder;  (B)  refused  without  proper  reason  to  perform  the
reasonable  and  lawful  duties  and  reasonable  and  lawful  responsibilities  required  of  him  hereunder  causing  material  injury  to  the
Company or its affiliates (monetarily or otherwise), and failed to cure such breach (in the event that such breach is capable of being
cured) within thirty (30) days following written receipt of notice from the Company setting forth in reasonable detail the nature of
such breach; (C) materially breached any provision of this Agreement and failed to cure such breach (in the event that such breach is
capable of being cured) within thirty (30) days following receipt of notice from the Company setting forth in reasonable detail the
nature  of  such  breach;  (D)  willfully  engaged  in  conduct  that  is  materially  injurious  to  Company  or  its  affiliates  (monetarily  or
otherwise); (E) committed an act of fraud, embezzlement or willful breach of fiduciary duty to Company or an affiliate (including
the unauthorized disclosure of confidential or proprietary material information of Company or an affiliate); or (F) been convicted of
(or pleaded no contest to) a crime involving fraud, dishonesty or moral turpitude or any felony; or

(iv)

at any time for any other reason, or for no reason whatsoever, in the sole discretion of the Board.

2.3

Executive’s  Right  to  Terminate.    Notwithstanding  the  provisions  of  paragraph,  Executive  shall  have  the  right  to

terminate his employment under this Agreement for any of the following reasons:

(i)

for “Good Reason,” which shall mean, in connection with or based upon, without Executive’s consent, (A)

a material diminution in Executive’s Base Salary (as defined below),

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other than in connection with an across the board salary reduction or deferral that applies proportionately to all employees of the
Company  in  conjunction  with  a  capital  shortfall;  (B)  a  material  diminution  in  Executive’s  responsibilities,  duties  or  authority,
including a diminution in Executive’s job title or reporting relationship (provided that a change in the CEO shall not constitute a
diminution in reporting relationship); or (C) a material breach by Company of any material provision of this Agreement; or

(ii)

at any time for any other reason, or for no reason whatsoever, in the sole discretion of Executive.

2.4

Notice of Termination.  If Company desires to terminate Executive’s employment hereunder at any time it shall do so by
giving a thirty (30)-day written notice to Executive that it has elected to terminate Executive’s employment hereunder and stating the effective
date  and  reason  for  such  termination,  provided,  however,  that  that  no  such  action  shall  alter  or  amend  any  other  provisions  hereof  or  rights
arising hereunder; and provided, further, however, that the Company may terminate Executive’s employment relationship with the Company
immediately  upon  written  notice  to  Executive  in  the  event  the  Company  terminates  Executive’s  employment  for  Cause  and  no  cure  period
applies.  If Executive desires to terminate his employment hereunder at any time he shall do so by giving a thirty (30)-day written notice to
Company that he has elected to terminate his employment hereunder and stating the effective date and reason for such termination, provided,
however that no such action shall alter or amend any other provisions hereof or rights arising hereunder.  In the case of any notice by Executive
of his intent to terminate his employment hereunder for Good Reason, Executive shall provide Company with notice of the existence of the
condition(s) constituting the Good Reason within thirty (30) days after the initial existence of such condition(s) and Company shall have thirty
(30) days following Executive’s provision of such notice to remedy such condition(s). If Company remedies the condition(s) constituting the
Good  Reason  within  such  thirty  (30)-day  period,  then  Executive’s  employment  hereunder  shall  continue  and  his  notice  of  termination  shall
become void and of no further effect.  If Company does not remedy the condition(s) constituting the Good Reason within such thirty (30)-day
period, Executive’s employment with Company shall terminate on the date that is thirty-one (31) days following the date of Executive’s notice
of termination and Executive shall be entitled to receive the payments and benefits described in paragraph 4.3.

2.5

Deemed  Resignations.    Unless  otherwise  agreed  and  approved  by  the  Board,  any  termination  of  Executive’s
employment shall constitute an automatic resignation of Executive as an officer of Company and each affiliate of Company, and if applicable,
an automatic resignation of Executive from the Board and from the board of directors or similar governing body of any affiliate of Company,
and an automatic resignation from the board of directors or similar governing body of any corporation, limited liability company or other entity
in  which  Company  or  any  affiliate  holds  an  equity  interest  and  with  respect  to  which  board  or  similar  governing  body  Executive  serves  as
Company’s or such affiliate’s designee or other representative.

ARTICLE 3
COMPENSATION AND BENEFITS

3.1

Base Salary.  During the Term, the Executive shall receive an initial base salary at a rate of U.S. Three Hundred Seventy
Five  Thousand  Dollars  (U.S.  $375,000)  per  annum,  and  such  salary  shall  be  paid  in  accordance  with  the  customary  payroll  practices  of  the
Company, subject to annual review by the Board in its sole discretion (the “Base Salary”).

3.2

Initial Stock Option Grant.  In connection with the commencement of Executive’s  employment  relationship  with  the

Company, the Company will recommend that the Board grant

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Executive  an  option  (the  “Option”)  to  purchase  up  to  Three  Hundred  Twenty  Five  Thousand  (325,000)  shares  of  the  Company’s  Common
Stock  (the  “Common Stock”),  subject  to  approval  of  the  Board  of  Directors  and  to  the  terms  of  the  Company’s  2015  Stock  Plan  and  Stock
Option Agreement, with an exercise price per share equal to the fair market value of the Common Stock on the date of grant (as determined in
good faith by the Board of Directors).  Unless otherwise determined by the Board of Directors, the Option will vest as follows:

(i)

Vesting Schedule.  One-fourth (1/4th) of the Option shall vest and become exercisable on the twelve (12)-
month  anniversary  of  the  Effective  Date,  and  one  thirty-sixth  (1/36th)  of  the  remaining  number  of  shares  shall  vest  each  month
thereafter, such that one hundred percent (100%) of the shares subject to the Option shall be vested and exercisable as of the four (4)
year anniversary of the Effective Date.  Subject to the provisions of Section 3.2(ii) below, continued vesting of the Option will stop
on the date Executive’s employment or consulting relationship with the Company is terminated.

(ii)

Double Trigger Acceleration.  In the event of a Change of Control (as defined below), if: (1) Executive is
terminated without Cause by the Company or the successor corporation or a parent or subsidiary of such successor corporation of
the Company (the “Successor Corporation”) within the ninety (90) day period prior to the consummation of the Change of Control
transaction or within twelve (12) months following consummation of the Change of Control transaction; or (2) Executive terminates
his  or  her  employment  or  consulting  relationship  with  the  Company  or  the  Successor  Corporation,  each  as  applicable,  for  Good
Reason  within  the  ninety  (90)  day  period  prior  to  the  consummation  of  the  Change  of  Control  transaction  or  within  twelve  (12)
months  following  consummation  of  the  transaction,  then  the  Option  or  any  cancelled,  assumed,  or  substituted  Option  held  by
Executive in lieu of the Option at the time of Executive’s termination shall become fully accelerated and fully vested immediately
prior to the effective date of termination.  As used herein, “Change of Control” shall mean a sale of all or substantially all of the
Company’s assets, or any stock sale, merger, or consolidation of the Company with or into another corporation or business entity
other than a stock sale, merger, or consolidation in which the holders of more than fifty percent (50%) of the shares of capital stock
of  the  Company  outstanding  immediately  prior  to  such  transaction  continue  to  hold  (either  by  the  voting  securities  remaining
outstanding  or  by  their  being  converted  into  voting  securities  of  the  surviving  entity)  more  than  fifty  percent  (50%)  of  the  total
voting  power  represented  by  the  voting  securities  of  the  Company,  or  such  surviving  entity,  outstanding  immediately  after  such
transaction; provided, however, that a bona fide equity financing by the Company will not be deemed to be a Change of Control.

3.3

Subsequent Grants.    Subject  to  the  discretion  of  the  Board  of  Directors,  Executive  shall  be  eligible  to  receive  future
grants  of  stock  options  or  purchase  rights  from  time  to  time  in  the  future,  on  such  terms  and  subject  to  such  conditions  as  the  Board  shall
determine as of the date of any such grant.

3.4

Benefit Plan Eligibility.  Executive shall be entitled to: (i) participate in the Company’s healthcare coverage plan and
401(k) or similar retirement plan; and (ii) receive paid vacation and sick leave, with levels to be determined by the Company’s Board (or, if
established,  the  Compensation  Committee),  all  upon  the  same  terms  as  such  benefits  are  made  available  to  other  senior  executives  of  the
Company.

3.5

Reimbursement of Expenses.  Executive shall be entitled to payment or reimbursement of all reasonable, ordinary, and
necessary business expenses incurred by Executive in the performance of his responsibilities and the promotion of the Company’s business,
including but not limited to professional expenses such as memberships and medical licensing, provided that those expenses are

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consistent with Company policy and limits.  Executive shall submit to the Company periodic statements of all expenses so incurred.  Subject to
such reviews as the Company may deem necessary, the Company shall reimburse Executive the full amount of any such expenses advanced by
him in the ordinary course of business.

ARTICLE 4
EFFECT OF TERMINATION ON COMPENSATION

4.1

In General.  Upon a termination of Executive’s employment for any reason, the Executive  (or  the  Executive’s  estate)
shall  be  entitled  to  receive  the  sum  of  Executive’s  Base  Salary  through  the  date  of  termination  not  theretofore  paid;  any  unpaid  expense
reimbursements owed to the Executive under paragraph 3.5; and any amount arising from Executive’s participation in, or benefits under, any
employee benefit plans, programs or arrangements under paragraph 3.4 (including without limitation, any disability or life insurance benefit
plans, programs or arrangements), which amounts shall be payable in accordance with the terms and conditions of such employee benefit plans,
programs  or  arrangements.    Except  as  otherwise  provided  in  this  Article  4,  all  of  Executive’s  rights  to  salary,  fringe  benefits  and  other
compensation hereunder shall cease upon such date of termination, other than those expressly required under applicable law.

4.2

Termination  by  Company.    If  Executive’s  employment  hereunder  shall  be  terminated  by  Company  at  any  time  for
reasons other than those provided in Sections 2.2(i), (ii), or (iii), then Company shall: (a) provide Executive with a cash payment equal to one-
fourth  (1/4th)  of  Executive’s  Base  Salary  at  the  rate  in  effect  under  paragraph  3.1  on  the  date  of  such  termination;  (b)  provide  for  the
participation of Executive and/or his dependents, as applicable, in the Company’s medical and dental benefits in which they are enrolled at the
time of such termination for a period of three (3) months following the termination date of Executive’s employment, at Company’s expense, to
the extent that such continuation is permitted at the time of such termination under the terms of such Company benefit plans and insurance
arrangements, and if such continuation is not permitted then Company shall reimburse Executive for the cost of Executive procuring the same
or substantially similar benefits himself, unless Executive is otherwise eligible to receive benefit coverage of a roughly equivalent nature by
virtue  of  his  employment  with  any  subsequent  employer;  and  (c)  accelerate  the  vesting  of  Executive’s  Option  by  a  period  of  twelve  (12)
months,  provided  Executive  agrees  to  remain  reasonably  available  to  consult  with  the  Company,  on  an  as  needed  as  requested  basis,  for  a
period of twelve (12) months, on any issues reasonably requested by Company. Subject to paragraph 4.4, any cash payment due to Executive in
accordance with this section shall be paid to Executive in three equal monthly installments over the three month period following the date of
Executive’s termination of employment with Company.

4.3

Termination by Executive. If  Executive’s  employment  hereunder  shall  be  terminated  by  Executive  for  Good  Reason,
then Company shall: (a) provide Executive with a cash payment equal to one-fourth (1/4th) Executive’s Base Salary at the rate in effect under
paragraph  3.1  on  the  date  of  such  termination;  (b)  provide  for  the  participation  of  Executive  and/or  his  dependents,  as  applicable,  in  the
Company’s medical and dental benefits in which they are enrolled at the time of such termination for a period of three (3) months following the
termination  date  of  Executive’s  employment,  at  Company’s  expense,  to  the  extent  that  such  continuation  is  permitted  at  the  time  of  such
termination  under  the  terms  of  such  Company  benefit  plans  and  insurance  arrangements,  and  if  such  continuation  is  not  permitted  then
Company shall reimburse Executive for the cost of Executive procuring the same or substantially similar benefits himself, unless Executive is
otherwise eligible to receive benefit coverage of a roughly equivalent nature by virtue of his employment with any subsequent employer; and
(c) accelerate the vesting of Executive’s Option by a period of twelve (12) months, provided Executive agrees to remain reasonably available to
consult with the Company, on an as needed as requested basis, for a period of

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twelve  (12)  months,  on  any  issues  reasonably  requested  by  Company.  Subject  to  paragraph  4.4,  any  cash  payment  due  to  Executive  in
accordance with this section shall be paid to Executive in three equal monthly installments over the three month period following the date of
Executive’s termination of employment with Company.

4.4

Release  and  Full  Settlement.  Anything  to  the  contrary  herein  notwithstanding,  as  a  condition  to  the  receipt  of  the
additional termination payments and benefits under paragraph 4.2 or 4.3 hereof, as applicable, Executive shall first execute a release, in the
form established by the Board, releasing the Board, Company, and Company’s parent corporation, subsidiaries, affiliates, and their respective
shareholders,  owners,  partners,  officers,  directors,  employees,  attorneys  and  agents  from  any  and  all  claims  and  from  any  and  all  causes  of
action  of  any  kind  or  character  including,  but  not  limited  to,  all  claims  or  causes  of  action  arising  out  of  Executive’s  employment  with
Company or its affiliates or the termination of such employment, but excluding all claims to vested benefits and payments Executive may have
under any compensation or benefit plan, program or arrangement, including this Agreement. Executive shall provide such release no later than
thirty  (30)  days  after  the  date  of  his  termination  of  employment  with  Company  and,  as  a  condition  to  Company’s  obligation  to  provide  the
additional  termination  payments  and  benefits  in  accordance  with  paragraphs  4.2  and  4.3,  Executive  shall  not  revoke  such  release.  The
performance of Company’s obligations hereunder and the receipt of any termination payments and benefits provided under paragraphs 4.2 and
4.3 shall constitute full settlement of all such claims and causes of action, subject to the limitations set forth above.

4.5

Liquidated  Damages.    In  light  of  the  difficulties  in  estimating  the  damages  for  an  early  termination  of  Executive’s
employment under this Agreement, Company and Executive hereby agree that the payments and benefits, if any, to be received by Executive
pursuant to this Article 4 shall be received by Executive as liquidated damages.

4.6

Section  409A  Matters.    Notwithstanding  any  provision  in  this  Agreement  to  the  contrary,  if  Executive  is  a  specified
employee (within the meaning of Section 409A(a)(2)(B)(i) of the Internal Revenue Code of 1986, as amended (the “Code”),  and  applicable
administrative guidance thereunder and determined in accordance with any method selected by Company that is permitted under the regulations
issued under Section 409A of the Code), and the payment of any amount or benefit under this Agreement to or on behalf of Executive would be
subject  to  additional  taxes  and  interest  under  Section  409A  of  the  Code  because  the  timing  of  such  payment  is  not  delayed  as  provided  in
Section  409A(a)(2)(B)(i)  of  the  Code  and  the  regulations  thereunder,  then  any  such  payment  or  benefit  that  Executive  would  otherwise  be
entitled to during the first six (6) months following the date of Executive’s separation from service (within the meaning of Section 409A(a)(2)
(A)(i) of the Code and applicable administrative guidance thereunder) shall be accumulated and paid or provided, as applicable, on the date that
is  six  (6)  months  after  Executive’s  separation  from  service  (or  if  such  date  does  not  fall  on  a  business  day  of  Company,  the  next  following
business  day  of  Company),  or  such  earlier  date  upon  which  such  amount  can  be  paid  or  provided  under  Section  409A  of  the  Code  without
being  subject  to  such  additional  taxes  and  interest;  provided,  however,  that  Executive  shall  be  entitled  to  receive  the  maximum  amount
permissible under Section 409A of the Code and the applicable administrative guidance thereunder during the six-month period following his
separation  from  service  that  will  not  result  in  the  imposition  of  any  additional  tax  or  penalties  on  such  amount.  For  all  purposes  of  this
Agreement, Executive shall be considered to have terminated employment with Company when Executive incurs a “separation from service”
with Company within the meaning of Section 409A(a)(2)(A)(i) of the Code and the applicable administrative guidance issued thereunder. To
the extent that any reimbursements pursuant to this Agreement are taxable to the Executive, any reimbursement payment due to the Executive
pursuant to such provision shall be paid to the Executive on or before the last day of the Executive’s taxable year following the taxable year in
which the related expense was incurred. The Executive agrees to provide

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prompt notice to the Company of any such expenses (and any other documentation that the Company may reasonably require to substantiate
such  expenses)  in  order  to  facilitate  the  Company’s  timely  reimbursement  of  the  same.  The  reimbursements  and  benefits  pursuant  to  this
Agreement  are  not  subject  to  liquidation  or  exchange  for  another  benefit  and  the  amount  of  such  reimbursements  and  benefits  that  the
Executive receives in one taxable year shall not affect the amount of such reimbursements or benefits that the Executive receives in any other
taxable year. To the extent that Section 409A of the Code is applicable to this Agreement, the provisions of this Agreement shall be interpreted
as necessary to comply with such section and the applicable administrative guidance issued thereunder.

4.7

Other  Benefits.    This  Agreement  governs  the  rights  and  obligations  of  Executive  and  Company  with  respect  to
Executive’s  Base  Salary,  initial  stock  option  grant,  benefits,  and  certain  perquisites  of  employment.    Except  as  expressly  provided  herein,
Executive’s rights and obligations both during the term of his employment and thereafter with respect to his direct and indirect ownership rights
in Company, and other benefits under the plans and programs maintained by Company, shall be governed by the separate agreements, plans and
the other documents and instruments governing such matters.

ARTICLE 5
PROTECTION OF CONFIDENTIAL INFORMATION

5.1

PIIA.  Executive  acknowledges  and  agrees  that  all  compensation  paid  to  Executive  by  the  Company  pursuant  to  this
Agreement is conditioned upon Executive signing a Proprietary Information and Inventions Agreement in the form attached hereto as Exhibit
A, which is incorporated herein by this reference. Executive hereby covenants to abide by the terms and conditions of the PIIA, including, but
not limited to, the assignment of inventions and confidentiality provisions of the PIIA.

5.2

Remedies.  Executive acknowledges that money damages would not be sufficient remedy for any breach of this Article 5
by Executive, and Company or its affiliates shall be entitled to enforce the provisions of this Article 5 by terminating payments then owing to
Executive  under  this  Agreement  or  otherwise  and  to  specific  performance  and  injunctive  relief  as  remedies  for  such  breach.  Such  remedies
shall not be deemed the exclusive remedies for a breach of this Article 5 but shall be in addition to all remedies available at law or in equity,
including the recovery of damages from Executive and his agents.

ARTICLE 6
NON-COMPETITION AND NON-SOLICITATION OBLIGATIONS

6.1

Non-Competition and Non-Solicitation Obligations.  As part of the consideration for the compensation and benefits to
be paid to Executive hereunder; to protect the trade secrets and confidential information of Company that have been or will in the future be
disclosed or entrusted to Executive, the business good will of Company and its affiliates that has been and will in the future be developed in
Executive,  or  the  business  opportunities  that  have  been  and  will  in  the  future  be  disclosed  or  entrusted  to  Executive  by  Company  and  its
affiliates; Company and Executive agree to the following provisions:

(i)

Executive  hereby  agrees  that  during  the  term  of  his  direct  or  indirect  employment  or  consulting
relationship  with  the  Company  (as  the  case  may  be),  and  for  a  period  of  twelve  (12)  months  following  the  termination  of  his
employment  or  consulting  relationship  with  the  Company  (as  the  case  may  be)  for  any  reason,  Executive  shall  not  directly  or
indirectly solicit, induce, recruit, hire or encourage any of the Company’s employees or consultants to terminate their relationship
with  the  Company,  or  attempt  any  of  the  foregoing,  either  for  himself  or  any  other  person  or  entity.  For  a  period  of  twelve  (12)
months following termination of Executive’s employment or consulting relationship with the Company (as the case may be) for any
reason,

9050608_1.docx

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Executive hereby covenants not to solicit any licensor to or customer of the Company or licensee of the Company’s products, that
are known to him with respect to any business, products or services that are competitive to the products or services offered by the
Company or under development as of the date of termination of his relationship with the Company. In the event that Executive’s
employment  with  the  Company  is  terminated  by  the  Company  without  Cause  or  if  Executive  resigns  for  Good  Reason,  then  the
twelve (12) month periods referenced above in this section shall each be reduced to six (6) months.

(ii)

Executive  hereby  agrees  that  during  the  term  of  his  direct  or  indirect  employment  or  consulting
relationship  with  the  Company  (as  the  case  may  be)  and  for  twelve  (12)  months  following  the  termination  of  his  employment  or
consulting  relationship  with  the  Company  (as  the  case  may  be)  for  any  reason,  he  will  not,  without  the  Company’s  prior  written
consent,  directly  or  indirectly  work  on  any  products  or  services  that  are  competitive  with  products  or  services  (a)  being
commercially developed or exploited by the Company during his employment or consultancy with the Company (as the case may
be) and (b) on which he worked or about which he learned Proprietary Information (as defined in the PIIA) during his employment
or consultancy with the Company (as the case may be). In the event that Executive’s employment with the Company is terminated
by the Company without Cause or if Executive resigns for Good Reason, then the twelve (12) month period referenced above in this
section shall be reduced to six (6) months.

6.2

Enforcement  and  Remedies.  Executive  acknowledges  that  money  damages  would  not  be  sufficient  remedy  for  any
breach of this Article 6 by Executive, and Company shall be entitled to enforce the provisions of this Article 6 by terminating any payments
then owing to Executive under this Agreement and/or to specific performance and injunctive relief as remedies for such breach. Such remedies
shall not be deemed the exclusive remedies for a breach of this Article 6, but shall be in addition to all remedies available at law or in equity to
Company, including, without limitation, the recovery of damages from Executive and Executive’s agents involved in such breach and remedies
available to Company pursuant to other agreements with Executive.

6.3

Reformation. It is expressly understood and agreed that Company and Executive consider the restrictions contained in
this Article 6 to be reasonable and necessary to protect the proprietary information of Company and its affiliates. Nevertheless, if any of the
aforesaid restrictions are found by a court having jurisdiction to be unreasonable, or overly broad as to geographic area or time, or otherwise
unenforceable, the parties intend for the restrictions therein set forth to be modified by such courts so as to be reasonable and enforceable and,
as so modified by the court, to be fully enforced.

ARTICLE 7
NONDISPARAGEMENT

Executive agrees not to disparage the Company, any of its products or practices, or any of its directors, officers, employees, agents,
representatives, stockholders or affiliates, either orally or in writing, at any time and the Company and its Affiliates shall not and shall instruct
members of the Board and executive officers of the Company not to disparage the Executive, either orally or in writing, at any time; provided,
that, either party may confer in confidence with its legal representatives and make truthful statements as required by law or as required by any
applicable rules of professional conduct.

9050608_1.docx

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8.1

Notices.  For purposes of this Agreement, notices and all other communications provided for herein shall be in writing
and shall be deemed to have been duly given when personally delivered or when mailed by United States registered or certified mail, return
receipt requested, postage prepaid, addressed as follows:

ARTICLE 8
MISCELLANEOUS

To the Company:

  Alpine Immune Sciences, Inc.
  Stewart St., Ste. 1503
  Seattle, WA 98101

With copy to:

To Executive:

  Van Katzman
  Ascent Law Partners, LLP
  719 Second Ave, Ste. 1150
  Seattle, WA 98104

  Dr. Stanford Peng, MD
  33rd Ave. NE
  Seattle, WA 98115

or to such other address as either party may furnish to the other in writing in accordance herewith, except that notices or changes of address
shall be effective only upon receipt.

8.2

Applicable Law. This Agreement is entered into under, and shall be governed for all purposes by the laws of the State of

Washington.

8.3

No Waiver. No failure by either party hereto at any time to give notice of any breach by the other party of, or to require
compliance with, any condition or provision of this Agreement shall be deemed a waiver of similar or dissimilar provisions or conditions at the
same or at any prior or subsequent time.

8.4

Severability.    If  a  court  of  competent  jurisdiction  determines  that  any  provision  of  this  Agreement  is  invalid  or
unenforceable, then the invalidity or unenforceability of that provision shall not affect the validity or enforceability of any other provision of
this Agreement, and all other provisions shall remain in full force and effect.

8.5

Counterparts.  This Agreement may be executed in one or more counterparts, each of which shall be deemed to be an

original, but all of which together will constitute one and the same agreement.

8.6

Withholding  of  Taxes  and  Other  Employee  Deductions.  Company  may  withhold  from  any  benefits  and  payments
made pursuant to this Agreement or otherwise all federal, state, city and other taxes as may be required pursuant to any law or governmental
regulation or ruling and all other normal employee deductions made with respect to Company’s employees generally.

8.7

Headings. The paragraph headings have been inserted for purposes of convenience and shall not be used for interpretive

purposes.

9050608_1.docx

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8.8

Affiliate.   As  used  in  this  Agreement,  the  term  “affiliate”  shall  mean  any  entity  which  owns  or  controls,  is  owned  or

controlled by, or is under common ownership or control with, Company.

8.9

Assignment. This Agreement shall be binding upon and inure to the benefit of Company and any successor of Company,
by merger or otherwise. This Agreement shall also be binding and inure to the benefit of Executive and his heirs. Except as provided in the
preceding sentence, this Agreement, and the rights and obligations of the parties hereunder, are personal and neither this Agreement, nor any
right, benefit, or obligation of either party hereto, shall be subject to voluntary or involuntary assignment, alienation or transfer, whether by
operation of law or otherwise, without the prior written consent of the other party.

8.10

Term. This Agreement has a term co-extensive with the term of employment provided in Article 2. Termination shall
not affect any right or obligation of any party which is accrued or vested prior to such termination. The provisions of paragraphs 2.5, 4.4 to 4.7
and Articles 5, 6, 7 and 8 shall survive any termination of this Agreement.

8.11

Entire Agreement. This Agreement, the PIIA, the 2015 Stock Plan, and the Stock Option Agreement will constitute the
entire agreement of the parties with regard to the subject matter hereof, and will contain all the covenants, promises, representations, warranties
and  agreements  between  the  parties  with  respect  to  employment  of  Executive  by  Company.  Without  limiting  the  scope  of  the  preceding
sentence, all understandings and agreements preceding the date of execution of this Agreement and relating to the subject matter hereof are as
of the Effective Date superseded by this Agreement and null and void and of no further force and effect. Any modification of this Agreement
will be effective only if it is in writing and signed by the party to be charged.

8.12

Liability Insurance. Company may maintain a directors’ and officers’ insurance liability policy throughout the term of
this Agreement and may provide Executive with coverage under such policy consistent with those provided to other Company directors and
officers.

8.13

Arbitration.

(i)

Company  and  Executive  agree  to  submit  to  final  and  binding  arbitration  any  and  all  disputes  or
disagreements concerning the interpretation or application of this Agreement, the termination of this Agreement, or any other aspect
of  the  Executive’s  employment  relationship  with  Company.  Any  such  dispute  or  disagreement  will  be  resolved  by  arbitration  in
accordance with the National Rules for the Resolution of Employment Disputes of the American Arbitration Association before a
single  arbitrator.  Arbitration  will  take  place  in  Seattle,  Washington,  unless  the  parties  mutually  agree  to  a  different  location.
Company  and  Executive  agree  that  the  decision  of  the  arbitrator  will  be  final  and  binding  on  both  parties.  Any  court  having
jurisdiction may enter a judgment upon the award rendered by the arbitrator. The costs of the proceedings shall be borne equally by
the parties unless the arbitrator orders otherwise.

(ii)

Notwithstanding the provisions of paragraph 8.13(i), Company may, if it so chooses, bring an action in
any court of competent jurisdiction for temporary or preliminary injunctive relief to enforce Executive’s obligations under Articles 5
(including the PIIA), 6 or 7 hereof, pending a decision by the arbitrator in accordance with paragraph 8.13(i).

9050608_1.docx

[Signature page follows.]

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IN WITNESS WHEREOF, the parties hereto have executed this Agreement to be effective as of the Effective Date.

EXECUTIVE:
DR. STANFORD PENG, MD,
an individual

By:
Name:

  /s/ Dr. Stanford Peng, MD
  Dr. Stanford Peng, MD

COMPANY:
ALPINE IMMUNE SCIENCES, INC.,
a Delaware corporation

By:
Name:
Its:

 /s/ David D. Miller
 David D. Miller
 Director of Operations

9050608_1.docx

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9050608_1.docx

EXHIBIT A

PIIA

 
ALPINE IMMUNE SCIENCES, INC.
AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT

Exhibit 10.37

THIS AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT (the “Agreement”) is entered into
as  of  January  1,  2018  (the  “Effective  Date”)  between  Alpine  Immune  Sciences,  Inc.  (the  “Company”),  and  Stanford  Peng
(“Executive”) (collectively referred to as the “Parties” or individually as a “Party”).

R E C I T A L S

WHEREAS,  the  Company  desires  to  continue  to  employ  Executive  as  its  Executive  Vice  President  of  Research  and
Development  and  Chief  Medical  Officer,  and  to  enter  into  an  agreement  embodying  the  terms  of  such  continued  at-will
employment;

WHEREAS, Executive desires to accept such continued employment and enter into such an agreement.

NOW,  THEREFORE,  in  consideration  of  the  premises  and  mutual  covenants  herein  and  for  other  good  and  valuable

A G R E E M E N T

consideration, the Parties agree as follows:

1.

Duties and Scope of Employment.

(a)

Positions  and  Duties.    As  of  the  Effective  Date,  Executive  will  continue  to  serve  as
Executive  Vice  President  of  Research  and  Development  and  Chief  Medical  Officer  of  the  Company,  subject  to  the  terms  and
conditions of this Agreement.  Executive will continue to render such business and professional services in the performance of his
duties,  consistent  with  Executive’s  position  within  the  Company,  as  shall  continue  to  be  reasonably  be  assigned  to  him  by  the
Company  and,  as  such,  from  and  after  the  date  hereof,  shall  report  directly  to  and  shall  be  subject  to  the  direction  of  the  Chief
Executive Officer.  The period of Executive’s continued at-will employment under the terms of this Agreement is referred to herein
as the “Employment Term.”

(b)

Obligations.    During  the  Employment  Term,  Executive  will  continue  to  perform  his
duties faithfully and to the best of his ability and will continue to devote his full business efforts and time to the Company.  For the
duration of the Employment Term, and as before, Executive agrees not to actively engage in any other employment, occupation or
consulting activity for any direct or indirect remuneration without the prior written approval of the Board.

2.

At-Will Employment.  Subject to Sections 6 below, the parties agree that Executive's employment with the
Company will continue to be “at-will” employment and, as such, may be terminated at any time with or without cause or notice, for
any  reason  or  no  reason.    Executive  further  understands  and  agrees  that,  as  before,  neither  his  job  performance  nor  promotions,
commendations, bonuses or the like from the Company give rise to or in any way serve as the basis for modification, amendment,
or extension, by implication or otherwise, of his employment with the Company.

 
 
3.

Compensation.

(a)

Base  Salary.    During  the  Employment  Term,  the  Company  will  pay  Executive  as
compensation for his services a base salary at a rate of $400,000 per year, as modified from time to time at the discretion of the
Board or a duly constituted  committee  of  the  Board  (the  “Base Salary”).   The  Base  Salary,  as  before,  will  be  paid  in  regular
installments in accordance with the Company’s normal payroll practices (subject to required withholding). Any modification in
Base  Salary  (together  with  the  then  existing  Base  Salary)  shall  serve  as  the  “Base  Salary”  for  future  employment  under  this
Agreement.  The first and last payment will be adjusted, if necessary, to reflect a commencement or termination date other than
the first or last working day of a pay period.

(b)

Annual Bonus.  During the Employment Term, for each calendar year, Executive shall
be  eligible  to  earn  an  annual  discretionary  bonus  based  upon  the  achievement  of  certain  Company  and  individual  goals  as
determined by the Company in its discretion after consultation with Executive (the “Annual Bonus”). The Board will determine
in its discretion whether the performance objectives for any Annual Bonus have been achieved.  In connection with the Annual
Bonus, subject to the corresponding performance levels being achieved, the Executive shall be eligible for an annual target bonus
of up to 35% of the Executive’s Base Salary (the “Target Bonus”) with an annual maximum bonus equal to 100% of the Target
Bonus.  The  Board  does,  however,  retain  the  option  of  increasing  the  Annual  Bonus  in  any  given  year  by  an  additional
discretionary amount in the event Executive significantly exceeds the above-referenced performance objectives for that year, as
determined,  in  all  cases,  by  the  Board  in  its  sole  discretion.   Any  such  Annual  Bonus  (including  any  additional  discretionary
increase, if awarded by the Board) will be determined and, to the extent earned, paid on an annual basis, at the time and manner
in which such bonuses are normally paid to employees at Executive’s level, but in no event will such payment be made later than
March  15  of  the  year  following  the  year  such  Annual  Bonus  was  earned.    Receipt  of  any  Annual  Bonus  is  contingent  upon
Executive’s continued employment with the Company through the date the Annual Bonus is earned and any Annual Bonus for a
calendar year will not be considered earned if Executive is terminated prior to December 1.  No “pro-rated” or partial bonus will
be provided in the event of Executive’s earlier separation from employment, except as provided by this Agreement.

(c)

Equity.   The  Executive  acknowledges  and  agrees  that  Executive  has  been  previously
awarded  the  options  to  purchase  shares  of  the  Company’s  common  stock  detailed  in  Schedule  1  hereto,  subject  to  the  terms,
definitions and conditions, including vesting requirements, of the relevant stock option agreements between Executive and the
Company (the “Option Agreements”) and the Company’s Amended and Restated 2015 Stock Plan and 2015 Equity Incentive
Plan, as applicable (the “Equity Plans”).  

4.

Employee Benefits.  During the Employment Term, Executive will be continue to be eligible to participate in
the employee benefit plans currently and hereafter maintained by the Company of general applicability to similarly-situated senior
executives of the Company, subject to the terms and conditions of the applicable policies.  The Company, as before, reserves the
right to cancel or change the benefit plans and programs it offers to its employees at any time.  

5.

Business Expenses.  During the Employment Term, the Company will reimburse Executive for reasonable
business  travel,  entertainment  or  other  business  expenses  incurred  by  Executive  in  the  furtherance  of  or  in  connection  with  the
performance of Executive’s duties hereunder, in accordance with the Company’s expense reimbursement policy as in effect from
time to time.  Except as expressly provided otherwise herein, no reimbursement payable to the Executive pursuant to any provision
of this
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Agreement  or  pursuant  to  any  plan  or  arrangement  of  the  Company  shall  be  paid  later  than  the  last  day  of  the  calendar  year
following the calendar year in which the related expense was incurred, and no such reimbursement during any calendar year shall
affect  the  amounts  eligible  for  reimbursement  in  any  other  calendar  year,  except,  in  each  case,  to  the  extent  that  the  right  to
reimbursement  does  not  provide  for  a  “deferral  of  compensation”  within  the  meaning  of  Section  409A  of  the  Internal  Revenue
Code of 1986, as amended (the “Code”), and the final regulations and any formal guidance issued thereunder (“Section 409A”).

6.

Termination and Severance.  As  discussed  above,  the  Company  shall  be  entitled  to  terminate  Executive  at
any time and for any reason, and Executive shall be entitled to resign at any time and for any reason.  Executive may, however, be
entitled to receive certain severance benefits in connection with his separation from employment under the Company’s Change of
Control  and  Severance  Policy  (the  “Severance  Policy”).    Any  such  severance,  if  applicable,  will  be  subject  to  the  terms  and
conditions of the Severance Policy, as may be amended or modified from time to time.

7.

 Company Matters.

(a)

Proprietary Information and Inventions.  Executive acknowledges and agrees that, as a
condition  of  his  continued  employment,  he  is  required  to  sign  and  abide  by  the  terms  of  the  At-Will Employment, Confidential
Information,  Invention  Assignment,  and  Arbitration  Agreement  (the  “Confidentiality  Agreement”),  including  the  arbitration
agreement and provisions governing the non-disclosure of confidential information and restrictive covenants contained therein.  A
copy of the Confidentiality Agreement is attached hereto as Exhibit A.

(b)

Ventures.    If,  during  his  employment  and  as  before,  Executive  is  engaged  in  or
associated  with  planning  or  implementing  of  any  project,  program  or  venture  involving  the  Company  and  any  third  parties,  all
rights  in  such  project,  program  or  venture  shall  belong  to  the  Company  (or  third  party,  to  the  extent  provided  in  any  agreement
between the Company and the third party).  Except as  approved by the Board in writing, Executive shall not be entitled to any
interest in such project, program or venture or to any commission, finder’s fee or other compensation in connection therewith other
than the salary or other compensation to be paid to Executive as provided in this Agreement.  

Notification of New Employer.  In the event that Executive leaves the employ of the
Company, Executive grants consent to notification by the Company to Executive’s new employer about his rights and obligations
under this Agreement and the Confidentiality Agreement.

(c)

8.

ARBITRATION.    IN  CONSIDERATION  OF  EXECUTIVE’S  EMPLOYMENT  WITH  THE  COMPANY,
ITS  PROMISE  TO  ARBITRATE  ALL  EMPLOYMENT-RELATED  DISPUTES  AND  EXECUTIVE’S  RECEIPT  OF  THE
COMPENSATION, PAY RAISES AND OTHER BENEFITS PAID TO EXECUTIVE BY THE COMPANY, AT PRESENT AND
IN  THE  FUTURE,  EXECUTIVE  AGREES  THAT  ANY  AND  ALL  CONTROVERSIES,  CLAIMS,  OR  DISPUTES  WITH
ANYONE (INCLUDING THE COMPANY AND ANY EMPLOYEE, OFFICER, DIRECTOR, SHAREHOLDER OR BENEFIT
PLAN  OF  THE  COMPANY,  IN  THEIR  CAPACITY  AS  SUCH  OR  OTHERWISE),  ARISING  OUT  OF,  RELATING  TO,  OR
RESULTING FROM EXECUTIVE’S EMPLOYMENT WITH THE COMPANY OR THE TERMINATION OF EXECUTIVE’S
EMPLOYMENT  WITH  THE  COMPANY,  INCLUDING  ANY  BREACH  OF  THIS  AGREEMENT,  SHALL  BE  SUBJECT  TO
BINDING ARBITRATION, AS SET FORTH IN THE CONFIDENTIALITY AGREEMENT.
-3-

9.

Assignment.  This Agreement will be binding upon and inure to the benefit of (a) the heirs, executors and
legal  representatives  of  Executive  upon  Executive's  death  and  (b)  any  successor  of  the  Company.    Any  such  successor  of  the
Company  will  be  deemed  substituted  for  the  Company  under  the  terms  of  this  Agreement  for  all  purposes.    For  this  purpose,
“successor”  means  any  person,  firm,  corporation  or  other  business  entity  which  at  any  time,  whether  by  purchase,  merger  or
otherwise, directly or indirectly acquires all or substantially all of the assets or business of the Company.  None of the rights of
Executive to receive any form of compensation payable pursuant to this Agreement may be assigned or transferred except by will
or the laws of descent and distribution.  Any other attempted assignment, transfer, conveyance or other disposition of Executive’s
right to compensation or other benefits will be null and void.

10.

Notices.  All notices, requests, demands and other communications called for under this Agreement shall be
in writing and shall be delivered personally by hand or by courier, mailed by United States first-class mail, postage prepaid, or sent
by facsimile directed to the Party to be notified at the address or facsimile number indicated for such Party on the signature page to
this Agreement, or at such other address or facsimile number as such Party may designate by ten (10) days’ advance written notice
to the other Parties hereto.  All such notices and other communications shall be deemed given upon personal delivery, three (3) days
after the date of mailing, or upon confirmation of facsimile transfer.

11.

Severability.    In  the  event  that  any  provision  hereof  becomes  or  is  declared  by  a  court  of  competent

jurisdiction to be illegal, unenforceable or void, this Agreement will continue in full force and effect without said provision.

12.

Integration.  This Agreement, together with the Severance Policy, the Equity Plans, the Option Agreements
and the Confidentiality Agreement, represents the entire agreement and understanding between the parties as to the subject matter
herein  and  supersedes  all  prior  or  contemporaneous  agreements  whether  written  or  oral,  including  the  Employment  Agreement
dated as of August 14, 2016 by and between the Company and Executive (the “Prior Employment Agreement”).  The Executive
and Company acknowledge and agree that the Prior Employment Agreement shall be of no further force and effect.  No waiver,
alteration,  or  modification  of  any  of  the  provisions  of  this  Agreement  will  be  binding  unless  in  writing  and  signed  by  duly
authorized representatives of the parties hereto.

13.

Tax Withholding.  All payments, as before, made pursuant to this Agreement will be subject to withholding

of applicable taxes.

14.

Waiver.  No Party shall be deemed to have waived any right, power or privilege under this Agreement or
any provisions hereof unless such waiver shall have been duly executed in writing and acknowledged by the Party to be charged
with such waiver.  The failure of any Party at any time to insist on performance of any of the provisions of this Agreement shall in
no  way  be  construed  to  be  a  waiver  of  such  provisions,  nor  in  any  way  to  affect  the  validity  of  this  Agreement  or  any  part
hereof.  No waiver of any breach of this Agreement shall be held to be a waiver of any other subsequent breach

15.

Governing  Law.    This  Agreement  will  be  governed  by  the  laws  of  the  State  of  Washington  (with  the

exception of its conflict of law provisions).

16.

Conflict  Waiver.    Each  of  the  Parties  to  this  Agreement  understands  that  Wilson  Sonsini  Goodrich  &
Rosati,  Professional  Corporation  (“WSGR”)  is  serving  as  counsel  to  the  Company  in  connection  with  the  transactions
contemplated hereby, and that discussion of such transactions with
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Executive  could  be  construed  to  create  a  conflict  of  interest.    By  executing  this  Agreement,  the  Parties  hereto  acknowledge  the
potential  conflict  of  interest  and  waive  the  right  to  claim  any  conflict  of  interest  at  a  later  date.    Furthermore,  by  executing  this
Agreement,  the  Parties  acknowledge  that  if  a  conflict  of  interest  exists  and  any  litigation  arises  between  Executive  and  the
Company,  WSGR  would  represent  the  Company.    Executive  represents  and  warrants  that  he  has  had  the  opportunity  to  seek
independent counsel in his review of this and all related agreements and that he is not relying on WSGR for any legal, tax or other
advice relating to such agreements.

17.

Acknowledgment.  Executive acknowledges that he has had the opportunity to discuss this matter with and
obtain advice from his legal counsel, has had sufficient time to, and has carefully read and fully understands all the provisions of
this Agreement, and is knowingly and voluntarily entering into this Agreement.  Executive further acknowledges and agrees that, as
of the date hereof, the Company has paid or provided all earned salary, wages, bonuses, accrued vacation/paid time off, leave, allowances,
reimbursable  expenses,  commissions,  stock,  stock  options,  vesting,  and  any  and  all  other  benefits  and  compensation  that  may  be  due  to
Executive.

18.

Counterparts.  This Agreement may be executed in multiple counterparts, each of which shall be deemed to

be an original, and all such counterparts shall constitute but one instrument.

19.

Effect of Headings.  The  section  and  subsection  headings  contained  herein  are  for  convenience  only  and

shall not affect the construction hereof.

20.

Construction  of  Agreement.    This  Agreement  has  been  negotiated  by  the  respective  Parties,  and  the

language shall not be construed for or against either Party.

21.

Section 409A.  The Section 409A paragraph of the Severance Policy are incorporated herein by reference.

22.

Protected  Activity  Not  Prohibited.    Executive  understands  that  nothing  in  this  Agreement,  or  any  other
agreement or policy with or by the Company, shall in any way limit or prohibit Executive from engaging in any Protected Activity.
For  purposes  of  this  Agreement,  “Protected  Activity”  shall  mean  filing  a  charge,  complaint,  or  report  with,  or  otherwise
communicating,  cooperating,  or  participating  in  any  investigation  or  proceeding  that  may  be  conducted  by,  any  federal,  state  or
local government agency or commission, including the Securities and Exchange Commission, the Equal Employment Opportunity
Commission,  the  Occupational  Safety  and  Health  Administration,  and  the  National  Labor  Relations  Board  (“Government
Agencies”). Executive understands that in connection with such Protected Activity, Executive is permitted to disclose documents or
other  information  as  permitted  by  law,  and  without  giving  notice  to,  or  receiving  authorization  from,  the  Company.
Notwithstanding the foregoing, Executive agrees to take all reasonable precautions to prevent any unauthorized use or disclosure of
any information that may constitute Company confidential information under the Confidentiality Agreement to any parties other
than  the  Government  Agencies.  Executive  further  understands  that  “Protected  Activity”  does  not  include  the  disclosure  of  any
Company attorney-client privileged communications. Any language in the Confidentiality Agreement, or any other agreement or
policy  of  the  Company,  regarding  Executive’s  right  to  engage  in  Protected  Activity  that  conflicts  with,  or  is  contrary  to,  this
paragraph is superseded by this provision. In addition, pursuant to the Defend Trade Secrets Act of 2016, Executive is notified that
an individual will not be held criminally or civilly liable under any federal or state trade secret law for the disclosure of a trade
secret that (a) is made in confidence to a federal, state, or local government official (directly or indirectly) or to an attorney solely
for the purpose of reporting or investigating a suspected violation of law, or (b) is made in a complaint or other document filed in a
lawsuit or other proceeding, if (and only if) such filing is made under seal. In addition, an individual who
-5-

files  a  lawsuit  for  retaliation  by  an  employer  for  reporting  a  suspected  violation  of  law  may  disclose  the  trade  secret  to  the
individual’s attorney and use the trade secret information in the court proceeding, if the individual files any document containing
the trade secret under seal and does not disclose the trade secret, except pursuant to court order.

23.

Clawback Provisions. Notwithstanding any other provisions in this Agreement to the contrary, any incentive-
based  compensation,  or  any  other  compensation,  paid  to  Executive  pursuant  to  this  Agreement  or  any  other  agreement  or
arrangement with the Company or any of its affiliates, which is subject to recovery under any law, government regulation or stock
exchange listing requirement, will be subject to such deductions and clawback as may be required to be made pursuant to such law,
government  regulation  or  stock  exchange  listing  requirement  (or  any  policy  adopted  by  the  Company  or  any  of  their  affiliates
pursuant  to  any  such  law,  government  regulation  or  stock  exchange  listing  requirement),  including  for  any  violations  of  the
Confidentiality Agreement, if applicable.

[Remainder of page is intentionally blank; Signature page follows]

-6-

IN WITNESS WHEREOF, each of the Parties has executed this Agreement as of the day and year first above written.

“COMPANY”

ALPINE IMMUNE SCIENCES, INC.

/s/ Paul Rickey

By:
Name:
Its: Chief Financial Officer

Paul Rickey

Address:
Seattle, WA 98119

201 Elliott Avenue West, Suite 230

Fax Number:

“EXECUTIVE”

STANFORD PENG

/s/ Stanford Peng
Stanford Peng

Address:

Fax Number:

AMENDED AND RESTATED EXECUTIVE
EMPLOYMENT AGREEMENT SIGNATURE PAGE

-7-

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SCHEDULE 1

Grant Date
09/22/2016
03/14/2017
01/02/2018

Number of Shares

161,492
37,267
65,000

Vesting Commencement Date
09/06/2016
09/06/2016
01/02/2018

Exercise Price
$0.65
$0.65
$11.31

Vesting
Schedule
(1)
(1)
(1)

(1)1/4th of the shares shall vest on the one-year anniversary of the Vesting Commencement Date, and 1/36th of the remaining shares
shall vest on each monthly anniversary thereafter, such that 100% of the shares shall be fully vested and exercisable as of the 4-
year anniversary of the Vesting Commencement Date.

-8-

 
 
 
 
 
 
EXHIBIT A

(CONFIDENTIALITY AGREEMENT)

 
SUBSIDIARIES OF ALPINE IMMUNE SCIENCES, INC.

Name of Subsidiary
AIS Operating Co., Inc.

State or other Jurisdiction of Incorporation
Delaware

Exhibit 21.1

 
 
 
Exhibit 23.1

We consent to the incorporation by reference in the following Registration Statements:

Consent of Independent Registered Public Accounting Firm

(1)

(2)

(3)

(4)

Registration Statement (Form S-3 No. 333-212404) of Nivalis Therapeutics, Inc.,

Registration  Statement  (Form  S-8  No.  333-205220)  pertaining  to  the  2012  Stock  Incentive  Plan  of  N30
Pharmaceuticals, Inc., 2015 Equity Incentive Plan of Nivalis Therapeutics, Inc. and Employee Stock Purchase
Plan of Nivalis Therapeutics, Inc.,

Registration  Statement  (Form  S-8  No.  333-211197)  pertaining  to  the  Employment  Inducement  Awards  of
Nivalis Therapeutics, Inc.,

Registration  Statement  (Post-Effective  Amendment  No.  1  on  Form  S-8  to  Form  S-4  No.  333-218134)
pertaining to the Amended and Restated 2015 Stock Plan of Alpine Immune Sciences, Inc., as amended,

of  our  report  dated  March  28,  2018,  with  respect  to  the  consolidated  financial  statements  of  Alpine  Immune  Sciences,  Inc.,
included in this Annual Report (Form 10-K) of Alpine Immune Sciences, Inc. for the year ended December 31, 2017.

/s/ Ernst & Young LLP

Seattle, Washington
March 28, 2018

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CERTIFICATION PURSUANT TO
RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,
AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 31.1

I, Mitchell Gold, certify that:

1.

2.

3.

4.

I have reviewed this Annual Report on Form 10-K of Alpine Immune Sciences, Inc.;

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the
statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this
report;

Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the
financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-
15(f)) for the registrant and have:

(a)

(b)

(c)

(d)

Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to
ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this report is being prepared;

Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for
external purposes in accordance with generally accepted accounting principles;

Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent
fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to
materially affect, the registrant’s internal control over financial reporting; and

5.

The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the
registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)

(b)

All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are
reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal
control over financial reporting.

Date: March 28, 2018

  By:

/s/ Mitchell Gold
Mitchell Gold
Executive Chairman and Chief Executive Officer
(Principal Executive Officer)

 
 
 
 
 
 
 
 
 
   
 
   
 
 
CERTIFICATION PURSUANT TO
RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,
AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 31.2

I, Paul Rickey, certify that:

1.

2.

3.

4.

I have reviewed this Annual Report on Form 10-K of Alpine Immune Sciences, Inc.;

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the
statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this
report;

Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the
financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-
15(f)) for the registrant and have:

(a)

(b)

(c)

(d)

Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to
ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this report is being prepared;

Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for
external purposes in accordance with generally accepted accounting principles;

Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent
fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to
materially affect, the registrant's internal control over financial reporting; and

5.

The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the
registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a)

(b)

All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are
reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal
control over financial reporting.

Date: March 28, 2018

  By:

/s/ Paul Rickey
Paul Rickey
Senior Vice President and Chief Financial Officer
(Principal Accounting Officer and Principal Financial Officer)

 
 
 
 
 
 
 
 
 
   
 
   
 
 
ALPINE IMMUNE SCIENCES, INC.
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32.1

In connection with the Annual Report of Alpine Immune Sciences, Inc. (the “Company”) on Form 10-K for the period ending December 31, 2017 as

filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Mitchell Gold, Executive Chairman and Chief Executive Officer
(Principal Executive Officer) of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that
that to my knowledge:

(1)

(2)

The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the
Company.

Date: March 28, 2018

  By:

/s/ Mitchell Gold
Mitchell Gold
Executive Chairman and Chief Executive Officer
(Principal Executive Officer)

A signed original of this written statement required by Section 906 of the Sarbanes-Oxley Act of 2002 has been provided to the Company and will

be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

This certification accompanies the Report to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to be
incorporated by reference into any filing of Alpine Immune Sciences, Inc. under the Securities Act of 1933, as amended, or the Securities Exchange Act of
1934, as amended (whether made before or after the date of the Report), irrespective of any general incorporation language contained in such filing.

 
 
 
 
 
   
 
   
 
 
 
 
ALPINE IMMUNE SCIENCES, INC.
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32.2

In connection with the Annual Report of Alpine Immune Sciences, Inc. (the “Company”) on Form 10-K for the period ending December 31, 2017, as

filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Paul Rickey, Senior Vice President and Chief Financial Officer
(Principal Accounting Officer and Principal Financial Officer), certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act
of 2002, that:

(1)

(2)

The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the
Company.

Date: March 28, 2018

  By:

/s/ Paul Rickey
Paul Rickey
Senior Vice President and Chief Financial Officer
(Principal Accounting Officer and Principal Financial Officer)

A signed original of this written statement required by Section 906 of the Sarbanes-Oxley Act of 2002 has been provided to the Company and will

be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

This certification accompanies the Report to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to be
incorporated by reference into any filing of Alpine Immune Sciences, Inc. under the Securities Act of 1933, as amended, or the Securities Exchange Act of
1934, as amended (whether made before or after the date of the Report), irrespective of any general incorporation language contained in such filing.