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Aptevo Therapeutics Inc.

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FY2022 Annual Report · Aptevo Therapeutics Inc.
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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, 2022
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 001-37746

APTEVO THERAPEUTICS INC.

(Exact name of Registrant as specified in its Charter)

Delaware
(State or other jurisdiction of
incorporation or organization)
2401 4  Avenue, Suite 1050
Seattle, Washington
(Address of principal executive offices)

th

Securities registered pursuant to Section 12(b) of the Act: 

Title of Each Class
Common Stock, $0.001 par value per share

Trading Symbol
APVO

Registrant’s telephone number, including area code: (206) 838-0500

Securities registered pursuant to Section 12(g) of the Act: 
None

81-1567056
(I.R.S. Employer
Identification No.)

98121
(Zip Code)

Name of Exchange on Which Registered
The Nasdaq Stock Market LLC
(The Nasdaq Capital Market)

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 every Interactive Data File required to be submitted 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 such files). YES ☒ NO ☐
Indicate  by  check  mark  whether  the  Registrant  is  a  large  accelerated  filer,  an  accelerated  filer,  a  non-accelerated  filer,  a  smaller  reporting  company,  or  emerging  growth  company.  See  the 
definition 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

  ☐
   ☒  

  Accelerated filer

Smaller reporting company

  Emerging growth 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 has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 
404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.   ☐
If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to 
previously issued financial statements. ☐
Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive 
officers during the relevant recovery period pursuant to §240.10D-1(b). ☐
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    YES ☐ NO ☒
The aggregate market value of common stock held by non-affiliates of the Registrant as of June 30, 2022, the last business day of the Registrant’s most recently completed second fiscal quarter, 
was $18 million, based upon the closing price of the Registrant’s common stock on the Nasdaq Stock Market LLC on June 30, 2022, the last trading day of the fiscal quarter.
Excludes an aggregate of 51,342 shares of the Registrant’s common stock held as of such date by officers, directors, and stockholders that the registrant has concluded are or were affiliates of the 
Registrant.  Exclusion  of  such  shares  should  not  be  construed  to  indicate  that  the  holder  of  any  such  shares  possesses  the  power,  direct  or  indirect,  to  direct  or  cause  the  direction  of  the 
management or policies of the Registrant or that such person is controlled by or under common control with the Registrant.
As of March 30, 2023, the number of shares of Registrant’s common stock outstanding was 7,239,471.

Portions of the Registrant’s definitive proxy statement to be filed with the Securities and Exchange Commission pursuant to Regulation 14A, not later than 120 days after the end of the fiscal year 
covered by this Annual Report on Form 10-K, relating to the Registrant’s 2023 Annual Meeting of Stockholders are incorporated by reference into Part III of this Report.

DOCUMENTS INCORPORATED BY REFERENCE

  
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

  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
  [Reserved]
  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
  Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

  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 Accountant Fees and Services

  Exhibits, Financial Statement Schedules
  Form 10-K Summary

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.
Item 9C.

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

PART IV
Item 15.
Item 16.

Page

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In  this  Annual  Report  on  Form  10-K,  “we,”  “our,”  “us,”  “Aptevo,”  and  the  “Company”  refer  to  Aptevo  Therapeutics  Inc.  and,  where  appropriate,  its 
consolidated subsidiaries.

ii

  
 
 
 
  
 
    
 
  
 
 
 
 
 
 
  
 
  
 
 
    
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
    
 
 
 
 
 
 
 
  
 
  
 
 
    
 
 
 
 
 
 
 
 
 
Cautionary Note Regarding Forward-Looking Information

PART I

This  Annual  Report  on  Form  10-K  includes  “forward-looking  statements”  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 (the Exchange Act). Statements in this Annual Report on Form 10-K, other 
than  statements  of  historical  facts,  including  statements  regarding  our  strategy,  future  operations,  including  the  timing  of  future  clinical  trials,  future 
financial  position,  future  revenues,  projected  costs,  prospects,  plans,  intentions,  expectations,  and  objectives  could  be  forward-looking  statements.  The 
words  “anticipates,”  “believes,”  “could,”  “designed,”  “estimates,”  “expects,”  “goal,”  “intends,”  “may,”  “plans,”  “projects,”  “pursuing,”  “will,” 
“would” and similar expressions (including the negatives thereof) are intended to identify forward-looking statements, although not all forward-looking 
statements  contain  these  identifying  words.  Any  forward-looking  statements  are  based  upon  management’s  assumptions,  expectations,  projections, 
intentions, objectives and/or beliefs about future events or occurrences and are subject to a number of risks and uncertainties. The timing of certain events 
and circumstances and known and unknown risks and uncertainties could cause actual results to differ materially from the plans, intentions, expectations 
and objectives underlying or disclosed in the forward-looking statements that we make. Therefore, you should not place undue reliance on our forward-
looking statements. Some factors that we believe could cause actual results or events to differ materially from our forward-looking statements include, but 
are  not  limited  to,  those  discussed  in  “Risk  Factors”,  “Management’s  Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations”  and 
elsewhere in this Annual Report on Form 10-K. Our forward-looking statements in this Annual Report on Form 10-K are based on current information and 
we do not assume any obligation to update any forward-looking statements except as required by the federal securities laws. 

You  should  read  the  following  discussion  and  analysis  together  with  the  financial  statements  and  the  related  notes  to  those  statements  included 

elsewhere in this Annual Report on Form 10-K.

Item 1. Business.

OVERVIEW

We  are  a  clinical-stage,  research  and  development  biotechnology  company  focused  on  developing  novel  immunotherapy  candidates  for  the 
treatment  of  different  forms  of  cancer.  We  have  developed  two  versatile  and  enabling  platform  technologies  for  rational  design  of  precision  immune 
modulatory drugs. Our lead clinical candidates, APVO436 and ALG.APV-527, and preclinical candidates, APVO603 and APVO711, were developed using 
our ADAPTIR™ modular protein technology platform. Our preclinical candidate APVO442 was developed using our ADAPTIR-FLEX™ modular protein 
technology platform.

Our ADAPTIR and ADAPTIR-FLEX platforms are designed to generate monospecific, bispecific, and multi-specific antibody candidates capable 
of enhancing the human immune system against cancer cells. ADAPTIR and ADAPTIR-FLEX are both modular platforms, which gives us the flexibility 
to  potentially  generate  immunotherapeutic  candidates  with  a  variety  of  mechanisms  of  action.  This  flexibility  in  design  allows  us  to  generate  novel 
therapeutic candidates that may provide effective strategies against difficult to treat, as well as advanced forms of cancer. We have successfully designed 
and constructed numerous investigational-stage product candidates based on our ADAPTIR platform. The ADAPTIR platform technology is designed to 
generate  monospecific  and  bispecific  immunotherapeutic  proteins  that  specifically  bind  to  one  or  more  targets,  for  example,  bispecific  therapeutic 
molecules,  which  may  have  structural  and  functional  advantages  over  monoclonal  antibodies.  The  structural  differences  of  ADAPTIR  molecules  over 
monoclonal antibodies allow for the development of ADAPTIR immunotherapeutics that are designed to engage immune effector cells and disease targets 
to produce signaling responses that modulate the immune system to kill tumor cells.

We believe we are skilled at candidate generation, validation, and subsequent preclinical and clinical development using the ADAPTIR platform and 
the  ADAPTIR-FLEX  platform  to  generate  multi-specific  candidates  or  other  candidates  to  our  platform  capabilities.    We  have  developed  a  preclinical 
candidate based on the ADAPTIR-FLEX platform which is advancing in our pipeline. We are developing our ADAPTIR and ADAPTIR-FLEX molecules 
using our protein engineering, preclinical development, process development, and clinical development capabilities.

1

  
 
 
  
  
STRATEGY

We seek to grow our business by, among other things: 

Advancing  our  lead  clinical  stage  candidate,  APVO436,  through  clinical  development  to  evaluate  its  therapeutic  potential  alone  and  in 
combination with other therapies. Based on the positive results from our Phase 1 dose escalation and dose expansion study, we plan to initiate a Phase 2 
clinical trial in the second half of 2023 to continue to assess efficacy of APVO436 in combination with Venetoclax and Azacitidine for the treatment of 
acute myelogenous leukemia (AML). 

Advancing our solid tumor candidate, ALG.APV-527, developed in partnership with Alligator Bioscience AB (Alligator), further in the clinic. 
Aptevo  and  Alligator  continue  to  investigate  ALG.APV-527  for  the  treatment  of  multiple  5T4-tumor  expressing  antigens  in  multiple  solid  tumor 
indications in a first-in-human Phase I clinical study that started in the first quarter of 2023. We are currently enrolling new patients. ALG.APV-527 targets 
the 4-1BB co-stimulatory receptor (on T lymphocytes and NK cells) and 5T4 (solid tumor antigen) and is designed to promote anti-tumor immunity.

Continued development and advancement our preclinical candidates, APVO603 (targeting 4-1BB (CD137) and OX40 (CD134), both members of 
the  TNF-receptor  family),  APVO442  (targeting  Prostate  Specific  Membrane  Antigen  (PSMA),  a  tumor  antigen  that  is  highly  expressed  on  prostate 
cancer cells and CD3), and APVO711 (an anti-PD-L1 x anti-CD40 compound). We continue advance APVO603 and APVO442 through preclinical and 
IND-enabling studies. In January 2023, we filed a provisional patent with the U.S. Patent and Trademark Office (USPTO) pertaining to APVO711, with the
potential to treat a range of solid malignancies such as head and neck cancer. APVO711 is a dual mechanism bispecific antibody candidate that is designed 
to provide synergistic stimulation of CD40 on antigen presenting cells while simultaneously blocking the PD-1/PD-L1 inhibitory pathway to potentially 
promote a robust anti-tumor response. Preclinical studies are planned to further evaluate the mechanism of action and efficacy of APVO711.

Development of novel bispecific and multi-specific proteins for the treatment of cancer using our ADAPTIR and ADAPTIR-FLEX platforms. 
We  have  expertise  in  molecular  and  cellular  biology,  immunology,  oncology,  pharmacology,  translational  sciences,  antibody  engineering  and  the 
development of protein therapeutics. This includes target validation, preclinical proof of concept, cell line development, protein purification, bioassay and 
process development and analytical characterization. We focus on product development using our ADAPTIR and ADAPTIR-FLEX platforms. We plan to 
generate additional monospecific, bispecific, and multi-specific protein immunotherapies for development, potentially with other collaborative partners, to 
exploit  the  potential  of  the  ADAPTIR  and  ADAPTIR-FLEX  platforms.  We  will  select  novel  candidates  that  have  the  potential  to  demonstrate  proof  of 
concept early in development. We expect to continue to expand the ADAPTIR and ADAPTIR-FLEX product pipelines to address areas of unmet medical 
need. 

Establishing  collaborative  partnerships  to  broaden  our  pipeline  and  provide  funding  for  research  and  development.  We  intend  to  pursue 

collaborations with other biotechnology and pharmaceutical companies, academia, and non-governmental organizations to advance our product portfolio. 

PLATFORM TECHNOLOGY AND PRODUCT CANDIDATES 

Characteristics

Drug Targeting

Genetic and Structural Format

Half-life

Effector Function
Manufacturing

Current Pipeline Candidates

Technology

ADAPTIR
Bind up to two targets
Single gene that assembles into a homodimer based on an 
antibody backbone

ADAPTIR-FLEX
Bind up to four targets
Two genes that assemble into a heterodimer based on a mutated 
antibody backbone

Contains Immunoglobulin Gamma 1 Fc
Demonstrated antibody-like half-life in mice
Fc mutations may be utilized to eliminate binding to Fc Gamma Receptors or to enhance effector function
Antibody-like manufacturing processes

APVO436 (CD123 x CD3)
ALG.APV-527 (41BB x 5T4)
APVO603 (41BB x OX40)
APVO711 (PD-L1 x CD40)

2

APVO442 (PSMA x CD3)

  
 
 
Platform Technology 

ADAPTIR  and  ADAPTIR-FLEX  Platform  Technologies.  The  ADAPTIR  and  ADAPTIR-FLEX  platform  technologies  can  be  used  to  produce 
monospecific,  bispecific,  and  multi-specific  immunotherapeutic  proteins.  These  protein  candidates  bind  to  one  or  more  targets  on  tumor  cells,  immune 
cells, or other cells in circulation to either amplify, suppress, or otherwise regulate the body’s defense mechanisms to treat cancer. We focus on developing 
drugs for treatment of oncology indications, but also may pursue other indications, including inflammatory diseases. We believe we are well positioned for 
the  development  of  monospecific,  bispecific,  and  multi-specific  therapeutics,  which  are  antibody-based  molecules  that  can  bind  one  or  more  targets  of 
therapeutic interest, utilizing our innovative ADAPTIR (modular protein technology) and ADAPTIR-FLEX platform technologies. This allows us to take 
an innovative approach to cancer immunotherapy or treatment of other diseases.

ADAPTIR and ADAPTIR-FLEX molecules are similar to antibodies; they can exhibit similar therapeutic properties to an antibody but can be easily 
modified to either eliminate or incorporate activities, while maintaining a similar size, stability, half-life and manufacturing advantages of a monoclonal 
antibody. The ADAPTIR molecules are single-chain polypeptides comprising customized elements, including a protein domain that binds to one or more 
targets  connected  to  the  hinge  domain  and  a  set  of  antibody  constant  domains  known  as  the  fragment  crystallizable  region,  or  Fc  region  of  a  human 
antibody. A second protein binding domain can be connected to the Fc region using a linker.  The antibody Fc region can elicit an immune response by 
binding to the corresponding Fc receptors found on various immune cells such as natural killer (NK) cells, and other cells bearing Fc receptors to mediate 
antibody-dependent cell cytotoxicity resulting in killing the target. With the ADAPTIR platform, the Fc region can be modified to enhance or eliminate 
these functions. Incorporation of the Fc region into the ADAPTIR platform also provides for an extended serum half-life by engaging recycling via the
neonatal Fc receptor or FcRn. A longer serum half-life could potentially reduce dosing frequency and dose quantity. The ADAPTIR-FLEX molecules are 
comprised of at least two polypeptides that are comprised of customized elements similar to ADAPTIR candidates. The Fc region of these molecules can 
be modified to enable formation of a stable heterodimer. These candidates have similar mutations in the Fc region as ADAPTIR candidates to enable or 
eliminate binding to Fc receptors but retaining binding to FcRn to provide for an extended serum half-life.

3

  
The ADAPTIR platform technology enables the design of both monospecific and bispecific bi-valent protein therapeutics.

Bispecific ADAPTIR molecules are similar in structure to monospecific ADAPTIR molecules, with the exception that they have two customized 
target binding domains on the ends of the Fc region. We have created several bispecific molecules that are able to redirect T cell cytotoxicity (RTCC). T 
cells are white blood cells that fight infections and tumor cells. RTCC ADAPTIR molecules are designed to activate T cells to specifically kill  tumor cells. 
The RTCC ADAPTIR does so by binding to a common T cell component CD3, a receptor complex that activates T cells, when engaging a specific tumor 
antigen on a specific tumor via the second binding domain, thereby activating the T cell to kill the tumor cell.

4

  
 
 
Our ADAPTIR-FLEX platform technology extends advantages of ADAPTIR technology to create protein therapeutics with varied specificity and 

valency and potentially new modes of action.

ADAPTIR-FLEX molecules are composed of two different polypeptides that form a hetero-dimer through modifying specific sequences in the Fc 
region of each polypeptide. Each end of the polypeptide may contain one or two different binding domains, enabling the ADAPTIR-FLEX molecules to 
bind up to four targets. In addition, the ADAPTIR-FLEX platform can be used to modify the valency of binding to each target, which means it can bind a 
target, through one binding domain or through multiple binding domains, to a specific target to enable modifying the strength of binding to a specific target.  

We  believe  that  ADAPTIR  and  ADAPTIR-FLEX  are  promising  platform  technologies  within  the  rapidly  growing  field  of  immuno-oncology 
therapeutics. The structural differences between ADAPTIR and ADAPTIR-FLEX molecules and monoclonal antibodies allow for the development of new 
immunotherapeutics that engage disease targets in a novel manner and produce a unique signaling response. By customizing the binding domains of our 
molecules, we can select the desired potency, half-life, toxicity and stability/manufacturability. We have the potential to develop products with mechanisms 
of  action  including,  but  not  limited  to,  redirected  T  cell  cytotoxicity  (RTCC),  modulating  signals  through  immunostimulatory  or  immunoinhibitory 
receptors and targeted cytokine delivery. We believe we can expand our ADAPTIR and ADAPTIR-FLEX platforms to generate monospecifics, bispecifics, 
or multi-specifics that target tumor antigens in combination with co-stimulatory molecules, including TNF-Receptor family members and other activating 
or  inhibitory  signaling  receptors.  We  believe  the  ADAPTIR  and  ADAPTIR-FLEX  platform  technologies  may  prove  to  have  advantages  over  other 
immunotherapeutics  and  other  bispecific  T  cell  engaging  technologies.  In  preclinical  studies,  our  data  indicates  that  APVO436,  a  RTCC  ADAPTIR 
bispecific that binds CD123, may have high potency and activity at low doses with reduced cytokine release compared to other bispecifics targeting the 
same  tumor  antigen  and  CD3.  The  ADAPTIR  and  ADAPTIR-FLEX  monospecifics,  bispecifics,  and  multi-specifics  can  be  produced  using  standard 
manufacturing practices. Further clinical and preclinical studies may not confirm the anticipated benefits of this platform.

Our ADAPTIR and ADAPTIR-FLEX platform intellectual property (IP) portfolio consists of IP that we solely own and control, with the exception 
of  non-exclusive  licenses  to  Chinese  hamster  ovary  (CHO)  cell  lines  and  related  expression  systems,  and  a  non-exclusive  license  to  certain  transgenic 
rodents of Open Monoclonal Technology, Inc.’s (OMT) OmniAb platform, which we non-exclusively license from various third parties.  See “Intellectual 
Property” for additional information about the ownership rights to ADAPTIR and ADAPTIR-FLEX platform intellectual property. 

5

  
 
 
Product Portfolio

Our current product candidate pipeline is summarized in the table below:

Product Candidates

Our  pipeline  includes  investigational  clinical  and  preclinical  stage  anti-cancer  drug  candidates  with  clinical  impact  potential  for  treating  both 

hematologic malignancies, also known as “liquid” tumors, and solid tumor malignancies.

APVO436. APVO436 is a bispecific ADAPTIR that is designed to engage CD3 and CD123 to redirect T-cells to destroy leukemia cells expressing 
the target CD123 molecule on their surface. We have finished enrollment into a multi-center, multi-cohort Phase 1b clinical trial to evaluate APVO436 in 
adult  patients  with  AML  both  as  monotherapy  and  in  combination  with  current  standard-of-care  therapies  (APVO436-5001).  This  antibody-like 
recombinant protein therapeutic candidate is designed to engage both leukemia cells and T-cells of the immune system and activate T cells via CD3 only 
when  engaging  CD123  to  trigger  the  destruction  of  leukemia  cells  as  well  as  leukemic  stem  cells.  Importantly,  CD123  is  not  only  expressed  on  the 
leukemic blast cells but is also expressed on leukemic stem cells. APVO436 has been engineered using our proprietary ADAPTIR platform technology and 
is uniquely designed to reduce the likelihood and severity of cytokine release syndrome (CRS). APVO436 has received orphan drug designation ("orphan 
status") for the treatment of acute myelogenous leukemia from the U.S. Food and Drug Administration (FDA). 

In Part 2 of APVO436-5001, which was the dose expansion part of this Phase 1b multi-center study, 5 cohorts of AML patients were planned to be 
enrolled  to  evaluate  safety  and  efficacy.  Cohorts  included  both  monotherapy  and  combination  therapy  protocols.  The  dose  expansion  part  of  the  trial 
evaluated  the  safety  and  tolerability  of  APVO436  when  used  as  an  adjunct  to  other  therapies  with  MEC  (Mitoxantrone,  Etoposide,  Cytarabine)  or 
Venetoclax plus Azacitidine, and as a monotherapy, and to obtain a preliminary assessment of the anti-leukemia activity of APVO436 in both modalities. 
Aptevo has concluded enrollment and presented preliminary data at the 64th American Society of Hematology (ASH) annual meeting on December 11, 
2022 for those cohorts where enrollment of patients occurred.

6

  
 
 
Overview of Cohorts and Study Design: This Phase 1b study was designed to enroll five (5) cohorts in parallel at up to 20 trial sites in the U.S. – up 
to 18 patients per cohort were planned for a total of up to 90 patients. At the 64th annual ASH meeting, data from cohorts with enrollment were presented. 
Following  the  analysis  of  promising  data  in  Cohort  2,  Aptevo  decided  to  conclude  enrollment  and  move  forward  with  a  Phase  2  study  and  explore 
APVO436 combination therapy with venetoclax and azacitidine in AML patients. The table below shows the originally planned Phase 1b cohort treatment 
paradigms.

Patients received APVO436 by intravenous dosing for up to four 28-day cycles. The objective of the trial was to evaluate safety, pharmacokinetics, 

and pharmacodynamics of APVO436. Forty-four AML patients were enrolled in the dose expansion part of the study across three cohorts.

The  Company  observed  positive  clinical  data  from  its  Phase  1b  trial  and  summarized  the  safety  profile  and  efficacy  data  in  a  heavily  pretreated 
population in the table below. APVO436 was generally well tolerated, with the highest response rate of 82% composite clinical remission (Composite CR) 
and  73%  complete  remission/complete  remission  with  incomplete  hematologic  recovery  (CR/CRi)  observed  in  Cohort  2  in  Venetoclax  naïve  patients,
where we saw 91% clinical benefit.

The table below shows the patient response rate to APVO436 treatment as of February 21, 2023 for patients enrolled in Cohorts 1, 2, and 3:

Cohort 1

Cohort 2 

Cohort Descripon

APVO436 + MEC

APVO436 + Ven/Aza

Cohort 2 (Venetoclax 
naïve)
APVO436 + Ven/Aza

Cohort 3

APVO436 only aer CT 
inducon

Paents enrolled, n
Paents evaluable, n
CR, n
CRi, n
MLFS, n
SD, n
CBR, %
Composite CR, %
CR/Cri %

18
11
5
0
1
3
82
55
45

19
16
5
3
1
3
75
56
50

12
11
5
3
1
1
91
82
73

7
4
0
0
1
2
75
25
0

Overall, patients had a median age of 63.5 years (range 25–84). The median number (range) of administered APVO436 cycles were 1.0 (1–4), 2.0 
(1–4), 2.0 (1–4), and 3.0 (3–3) for Cohorts 1, 2, 3, and 5, respectively. The most common TEAEs (reported in ≥20%) were fatigue (33%), pyrexia (31%), 
hypokalemia (29%), nausea (24%), and anemia (21%). Ten of the 42 patients developed Cytokine Release Syndrome (CRS). The majority of cases were 
mild to moderate (grade 1 or 2). However, one patient experienced a treatment related grade 5 CRS event, although this case was highly confounded by 
sepsis and pneumonia which made a causality assessment difficult.

7

  
 
 
 
A  potential  complication  associated  with  treatment  using  bispecific,  T  cell  engaging  antibodies  is  a  systemic  inflammatory  syndrome  known  as 
CRS. CRS may occur within minutes to hours after infusion of the bispecific T cell engaging antibody or emerge as a delayed onset complication after 
several  days.  Clinical  manifestations  of  CRS  may  range  from  mild  to  severe  including  hypotension,  hypoxia,  and  uncontrolled  systemic  inflammatory 
response with circulatory collapse, vascular leakage, peripheral and/or pulmonary edema, renal failure, cardiac dysfunction, and fatal multiorgan system 
failure.  Heart failure can also be a consequence of the systemic inflammatory syndrome of CRS. Another form of systemic inflammation a bispecific T cell 
engaging antibody can cause is Hemophagocytic Lymphohistiocytosis (HLH)/Macrophage Activation Syndrome (MAS) which shares many clinical and 
laboratory features with CRS.  HLH/MAS is considered a form of CRS when it occurs after treatment with a bispecific T cell engaging antibody.  

CRS cases occurred in some APVO436 patients in both the dose escalation as well as the dose expansion phases. These patients were effectively 
treated  using  the  generally  recommended  standard  CRS  treatment,  which  includes  the  use  of  tocilizumab  and  dexamethasone,  combined  with  standard 
supportive care. This has been confirmed to be generally effective in the APVO436 patients that have experienced CRS.

On November 26, 2019, the FDA granted Orphan Drug Designation for the treatment of acute myelogenous leukemia to APVO436, which grants us 

potential exclusive marketing and development rights, as well as eligibility for market exclusivity upon FDA approval of APVO436.

ALG.APV-527. ALG.APV-527 is a novel investigational bispecific ADAPTIR candidate, developed in partnership with Alligator Bioscience AB 
(Alligator), featuring a mechanism of action designed to simultaneously target 4-1BB (CD137) and 5T4, a tumor antigen overexpressed in several different 
types of cancer. 4-1BB, a co-stimulatory receptor on T cells, is known to enhance the immune response to cancer through activation of tumor-specific T 
cells and is believed to be a promising target for new immunotherapeutic approaches. ALG.APV-527 could potentially have utility in the treatment of a 
broad  spectrum  of  cancers  over-expressing  the  5T4  tumor  antigen,  including  malignant  pleural  mesothelioma,  non-small  cell  lung,  gastric/gastro-
esophageal, head and neck squamous cell carcinoma, pancreatic, renal, ovarian, prostate, breast, cervical, colorectal, endometrial, and bladder cancers. 

Aptevo and Alligator continue to advance ALG.APV-527 for the treatment of solid tumors and commenced a first-in-human study started in the first 

quarter of 2023. We continue to enroll new patients across the United States.

APVO603. APVO603  is  a  preclinical  dual  agonist  bispecific  ADAPTIR  candidate  designed  to  simultaneously  target  4-1BB  (CD137)  and  OX40 
(CD134), both members of the TNF-receptor family.  Dual targeting of 4-1BB and OX40 provides synergistic co-stimulation of T cells with the potential to 
amplify the cytotoxic function of activated T cells and NK cells, potentially leading to robust anti-tumor responses. APVO603’s combined activation of 
both the 4-1BB and OX40 TNF receptors represents an attractive approach in potentially overcoming the immunosuppressive tumor microenvironment. 
The targeted co-stimulation of 4-1BB and OX40 has the potential to promote an important immunological cascade, enhancing T cell activation, prolonging 
T cell survival, and improving tumor cell killing. Of note, this product candidate is not dependent on any one tumor antigen and has the potential to treat 
multiple solid tumors. IND-enabling studies continue for APVO603.

APVO442. APVO442 is a novel bispecific candidate based on the ADAPTIR-FLEX platform technology that binds to PSMA with two identical 
binding domains and with one binding domain to CD3 with reduced binding affinity. This candidate was designed to increase biodistribution of drugs to 
PSMA  positive  tumors  for  treatment  of  prostate  cancer.  The  low-affinity  single  binding  domain  to  CD3  has  the  potential  to  allow  for  increased 
concentrations at the tumor due to reduced binding of the drug by circulating peripheral T cells.  Preclinical studies are being concluded and demonstrate in 
vitro RTCC that is directed to PSMA bearing tumor cell lines in vitro and in animal tumor models. IND-enabling studies are beginning.

APVO711. APVO711 is a preclinical dual mechanism bispecific ADAPTIR candidate that is designed to provide synergistic stimulation of CD40 on 
antigen  presenting  cells  while  simultaneously  blocking  the  PD-1/PD-L1  inhibitory  pathway  to  potentially  promote  a  more  robust  anti-tumor  response. 
Preclinical studies both in vitro and in vivo will continue to provide us a better understanding of the mechanism of action and the efficacy of APVO711.

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Competition 

We  face,  and  will  continue  to  face,  intense  competition  from  both  U.S.-based  and  foreign  producers  of  both  large  and  small  molecule 
immunotherapeutic  products,  some  of  which  have  lower  cost  structures,  greater  access  to  capital,  greater  resources  for  research  and  development,  and 
sophisticated marketing capabilities. Any product candidate that we successfully develop and commercialize is likely to compete with currently marketed 
products, as well as other novel product candidates that are in development for the same indications. 

APVO436: We anticipate that APVO436 would compete with other agents targeting both CD123 and non-CD123 that are in development if they are 
also  approved.  Antibody  therapies  in  development  targeting  CD123  include:  MGD024  (Macrogenics  &  Gilead),  and  IMGN632  (ImmunoGen  &  Jazz). 
There are numerous CAR-T therapies in development: CART123 (University of Penn.), CARTCD123 (NCI/City of Hope), UCART123 (Cellectis), MB-
102  (Mustang  Bio)  and  several  others  in  development  in  China.  Other  competitive  products  targeting  CD123  are:  tagraxofusp  (formerly  SL-401,  an 
antibody immunotoxin, Stemline), KHK2833 (monoclonal antibody, Kyowa Hakko Kirin Pharma), CSL362 (monoclonal antibody, CSL/Janssen), AVC-
101 (VenCell Therapeutics), and IPH6101 (Innate Pharma).

ALG.APV-527:  This asset targets 4-1BB in a bispecific format when cross-linked with the tumor antigen 5T4.  We anticipate that ALG.APV-527 
would compete with bispecifics targeting 5T4 and 4-1BB, which are currently in preclinical development (Crescendo Biologics). Bispecific in the clinic 
targeting 5T4 include GenMab and Abbvie’s (GEN1044), a 5T4 x CD3 DuoBody, in Phase 1/2 trials. In addition, other competitors include bispecifics 
targeting  4-1BB  in  combination  with  other  targets  such  as  4-1BB  x  FAP  (FAP  is  expressed  on  tumor  associated  stromal  fibroblasts).    4-1BB  x  FAP  is 
currently in phase 1 clinical development by Molecular Partners and Amgen (AMG506) and Hoffmann-La Roche (RO7122290) for treatment of advanced 
solid  tumors.  Another  bispecific  targets  4-1BB  x  HER  (Cinrebafusp  Alfa,  PRS343)  which  is  in  phase  2  clinical  development  by  Pieris  for  treatment  of 
HER2+ solid tumors.

Furthermore, we face significant competition in the oncology market in general, including from: AbbVie Inc., Affirmed, Amgen Inc., AnaptysBio, 
Inc., Astellas Pharma Inc., Bayer AG, Biogen Idec Inc., Boehringer Ingelheim GmbH, Bristol Myers Squibb, F-Star Biotechnology Ltd., Genentech Inc. (a 
subsidiary  of  F.  Hoffmann-La  Roche  Ltd.),  Genmab  A/S,  Gilead  Sciences  Inc.,  GlaxoSmithKline  plc,  Grifols  USA  LLC,  Harpoon  Therapeutics,  I-Mab 
Biopharma, ImmunoGen, Inc., Immunomedics, Inc., Inhibrx Inc., Janssen BioTech Inc., Johnson & Johnson, Macrogenics, Inc., Pieris Pharmaceuticals, 
Inc.,  Sanofi-Aventis  US  LLC,  Takeda  Pharmaceuticals  U.S.A.,  Inc.,  Xencor,  Inc.  Y-mAbs  Therapeutics,  Inc.,  and  Zymeworks  Biopharmaceuticals,  Inc. 
Additionally, there may be other potential competitors or companies developing competitive products that may not be known to us at this time.

COLLABORATIONS WITH ALLIGATOR BIOSCIENCE 

On July 20, 2017, our wholly owned subsidiary Aptevo Research and Development LLC (Aptevo R&D), entered into a collaboration and option 
agreement  (the  Collaboration  Agreement)  with  Alligator  Bioscience  AB,  (Alligator),  pursuant  to  which  Aptevo  R&D  and  Alligator  are  collaboratively 
developing ALG.APV-527, a lead bispecific antibody candidate simultaneously targeting 4-1BB (CD137), a member of the TNFR superfamily of a co-
stimulatory receptor found on activated T cells, and 5T4 a tumor antigen overexpressed in a number of different types of cancer. This product candidate is 
built on our novel ADAPTIR platform. A first-in-human clinical study of ALG.APV-527 started in the first quarter of 2023. We continue to enroll new 
patients  across  the  United  States.  ALG.APV-527  targets  4-1BB  (T  lymphocyte  co-stimulatory  receptor)  and  5TA  (tumor  antigen)  and  is  designed  to 
reactivate antigen-primed T cells.

Subject to certain exceptions for Aptevo R&D’s manufacturing and platform technologies, the parties jointly own intellectual property generated in 
the performance of the development activities under the Collaboration Agreement. Under the terms of the Collaboration Agreement, the parties intend to 
share revenue received from a third-party commercialization partner equally, or, if the development costs are not equally shared under the Collaboration 
Agreement, in proportion to the development costs borne by each party. 

The Collaboration Agreement also contains several points in development at which either party may elect to “opt-out” (i.e., terminate without cause) 
and, following a termination notice period, cease paying development costs for this product candidate, which would be borne fully by the continuing party. 
Following an opt-out by a party, the continuing party will be granted exclusive rights to continue the development and commercialization of this product 

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candidate, subject to a requirement to pay a percentage of revenue received from any future commercialization partner for this product, or, if the continuing 
party elects to self-commercialize, tiered royalties on the net sales of this product by the continuing party ranging from the low to mid-single digits, based 
on  the  point  in  development  at  which  the  opt-out  occurs.  The  parties  have  also  agreed  on  certain  technical  criteria  or  “stage  gates”  related  to  the 
development  of  this  product  that,  if  not  met,  will  cause  an  automatic  termination  and  wind-down  of  the  Collaboration  Agreement  and  the  activities 
thereunder, provided that the parties do not agree to continue.

The Collaboration Agreement contains industry standard termination rights, including for material breach following a specified cure period, and in 

the case of a party’s insolvency.

INTELLECTUAL PROPERTY 

We  rely  on  a  combination  of  patents,  trademarks,  trade  secrets,  and  nondisclosure  and  non-competition  agreements  to  protect  our  proprietary 
intellectual property and will continue to do so. We own or exclusively license the patents and patent applications in our patent portfolio that support the 
ADAPTIR-FLEX  platform,  ADAPTIR  platform  and  pipeline  products  with  the  exception  of  certain  cell  line  rights  and  other  research  tools,  which  we 
license on a non-exclusive basis. We practice patent life cycle management by filing patent applications to protect new inventions relating to meaningful 
improvements to our products and related methods. We primarily seek patent protection for inventions that support our products and product candidates, 
but from time to time, we may seek patent protection for inventions that could, for instance, support a potential business opportunity or block a competitor 
from designing around our existing patents.

In general, and where possible, we pursue patent protection in countries where we believe there will be a significant market for the corresponding 
product or product candidate. We generally do not seek patent protection in countries where we have reason to believe we would not be able to enforce 
patents. For instance, we tend to not file in countries that are frequently listed on the Priority Watch List of the Special 301 Report prepared by the Office of 
the United States Trade Representative, with the exception that we typically file patent applications in China, Russia and India. We may also decide to take 
a narrower filing approach for secondary and improvement type inventions as compared to inventions that are more foundational to our products. We do 
not seek patent protection in countries that are on the United Nations, or U.N., list of Least Developed Countries. 

The  term  of  protection  for  various  patents  associated  with,  and  expected  to  be  associated  with,  our  marketed  product  and  product  candidates  is 
typically twenty years from the filing date, but may vary depending on a variety of factors, including the date of filing of the patent application or the date 
of patent issuance and the legal term of patents in the countries in which they are obtained. The protection afforded by a patent varies on a product-by-
product  basis  and  country-to-country  basis  and  depends  upon  many  factors,  including  the  type  of  patent,  the  scope  of  its  coverage,  the  availability  of 
regulatory-related  extensions,  the  necessity  for  terminal  disclaimers,  the  availability  of  legal  remedies  in  a  particular  country,  and  the  validity  and 
enforceability of the patents. 

In  some  cases,  we  may  decide  that  the  best  way  to  protect  our  intellectual  property  is  to  retain  proprietary  information  as  trade  secrets  and 
confidential  information,  rather  than  to  apply  for  patents,  which  would  involve  disclosure  of  proprietary  information  to  the  public.  When  determining 
whether  to  protect  intellectual  property  as  a  trade  secret,  we  consider  many  factors  including,  for  instance,  our  ability  to  maintain  the  trade  secret,  the 
likelihood that a competitor will independently develop the information, our ability to patent protect the intellectual property and the likelihood we would 
be able to enforce a resulting patent. 

We  are  a  party  to  a  number  of  license  agreements  under  which  we  license  patents,  patent  applications,  and  other  intellectual  property.  These 
agreements  impose  various  commercial  diligence  and  financial  payment  obligations  on  us.  We  expect  to  continue  to  enter  into  these  types  of  license 
agreements in the future. 

ADAPTIR and ADAPTIR-FLEX Platforms. We protect the ADAPTIR platform technology through a combination of patents and trade secrets. We 
own all ADAPTIR and ADAPTIR-FLEX platform intellectual property, with the exception that we have licenses to certain intellectual property related to 
third party research tools that we use in conjunction with our ADAPTIR platform technology such as cell lines, vectors, expression systems, and transgenic 
rodents.  For instance, we have a non-exclusive commercial license and research license with Lonza Group AG (Lonza) related to its CHO cell lines and 
vectors. Under our Lonza research license, we have an option to take a license to use the GS System to develop and manufacture therapeutic proteins for 
our commercial purposes. We also have a non-exclusive license to certain transgenic rodents of OMT’s OmniAb platform.

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The  initial  version  of  the  ADAPTIR  platform  technology  was  originally  developed  by  Trubion  Pharmaceuticals,  Inc.  (Trubion)  prior  to  its 
acquisition by Emergent BioSolutions Inc (Emergent). A patent family supporting use of unique linkers in the homodimer (a molecule consisting of two 
identical halves) version of the ADAPTIR platform was invented jointly by Trubion and Wyeth Pharmaceuticals, Inc. (Wyeth) as part of a collaboration 
between the two companies. Wyeth assigned the rights it had in that platform patent family to Trubion. We subsequently received the rights to the platform
patent family upon our spinoff from Emergent. 

In order to differentiate our platform inventions from antibodies and other antibody-like constructs that have been publicly disclosed, many of our 

patents and patent applications are directed to unique aspects or components of our platform such as linkers, targets, or binding domains. 

We  have  patents  relating  to  the  ADAPTIR  platform  issued  in  the  United  States,  Australia,  Israel,  Japan,  Malaysia,  Mexico,  New  Zealand, 
Philippines, Russia, Singapore, South Africa, South Korea, and Vietnam. We also have applications pending in various territories including Brazil, Canada, 
and Norway. We plan to continue to improve our ADAPTIR platform and to file patent applications on those improvements. Our decision as to where to 
file any new ADAPTIR improvement inventions will be based in part on the significance of the improvement. If patents issue on the pending ADAPTIR 
patent applications, the patent term for those patents are estimated to expire between 2027 and 2036.  As our ADAPTIR platform technology evolves, we 
may decide to allow patent applications and patents to expire if they contain claims that are limited to aspects of the platform that are no longer of value to 
Aptevo.  

ADAPTIR-FLEX, our heterodimer platform, is covered by patent application under the Patent Cooperation Treaty (PCT) that we filed in 2021. The 
PCT patent application allows us to file patent applications in PCT member state countries including, for instance, the United States, Europe, Japan, China, 
Australia,  and  Canada.  If  patents  claiming  priority  to  the  pending  ADAPTIR-FLEX  patent  application  are  issued,  the  resulting  patents  are  estimated  to 
expire in 2041.

We  own  patent  families  directed  to  use  of  particular  binding  domains  in  the  ADAPTIR  and  ADAPTIR-FLEX  platforms.    For  instance,  we  have 
some patents that cover the use of an ADAPTIR therapeutic to target CD3.  We also have pending patent applications that cover ADAPTIR therapeutics 
containing our preferred humanized CD3 binding domain polypeptide sequences.   

APVO436. We nationalized our core patent family, which covers the APVO436 product candidate in various countries and territories including the 
U.S.,  Australia,  Brazil,  Canada,  China,  Colombia,  Eurasia,  Europe,  Hong  Kong,  India,  Indonesia,  Israel,  Japan,  Malaysia,  Mexico,  New  Zealand, 
Philippines, Singapore, South Africa, South Korea, Ukraine, and Vietnam.

ALG.APV-527. We co-own with Alligator a patent family corresponding to PCT application PCT/EP2018/069850, which covers the ALG.APV-527 
product candidate. In January and February of 2020, this patent family was nationalized in various countries. Aptevo and Alligator also co-own U.S. patent 
10,239,949, which relates to protein molecules that specifically bind to 5T4 and/or 4-1BB and U.S. patent 11,312,786, which relates to the 4-1BB binding 
domain.  

In  addition  to  the  co-owned  assets,  Alligator  owns  a  patent  family  corresponding  to  PCT  application  PCT/EP2017/059656,  which  also  covers 

ALG.APV-527. Aptevo has an exclusive license from Alligator to this patent family for the development of the ALG.APV-527 product candidate.

Preclinical Therapeutic Candidates. We routinely file United States provisional patent applications and/or Patent Cooperation Treaty (PCT) patent 
applications  on  our  preclinical  therapeutic  assets  when  we  believe  we  have  sufficient  data  to  support  a  patent  application  filing.    Aptevo  owns  pending 
patent applications for its APVO603 therapeutic candidate, which was nationalized in various countries and territories, as well as APVO442 and APVO711 
therapeutic candidates.

Trademarks owned by Aptevo Therapeutics Inc. and its subsidiaries. Where possible, we pursue registered trademarks for our marketed products 
in  significant  markets.  We  own  trademark  registrations  and  pending  applications  for  the  marks:  APTEVO  THERAPEUTICS,  APTEVO 
BIOTHERAPEUTICS, APTEVO RESEARCH AND DEVELOPMENT, the Aptevo logo, ADAPTIR, and ADAPTIR-FLEX in relevant jurisdictions.

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REGULATION

Regulations in the United States and other countries have a significant impact on our product development, manufacturing, and marketing activities. 
Government  authorities  in  the  United  States,  at  the  federal,  state,  and  local  level,  and  in  other  countries,  extensively  regulate,  among  other  things,  the 
research, development, testing, approval, manufacture, packaging, storage, recordkeeping, labeling, advertising, promotion, distribution, marketing, import, 
and  export  of  biopharmaceutical  products.  In  addition,  sponsors  of  biopharmaceutical  products  participating  in  Medicaid  and  Medicare  are  required  to 
comply with mandatory price reporting, discount, and rebate requirements. The processes for obtaining regulatory approvals in the United States and in 
foreign countries, along with compliance with applicable statutes and regulations, require the expenditure of substantial time and financial resources. In the 
United States, the FDA regulates biopharmaceutical products under the Federal Food, Drug, and Cosmetic Act, or FDCA, the Public Health Services Act, 
or PHSA, and their implementing regulations. FDA’s requirements and expectations with respect to product development are constantly evolving. 

U.S. Product Development for Therapeutics

The process required by the FDA before a biologic may be marketed in the United States generally involves the following:

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completion of preclinical laboratory tests, animal studies according to Good Laboratory Practices, or GLP;

submission to the FDA of an investigational new drug application, or IND, which must become effective before human clinical trials may 
begin;

performance of adequate and well-controlled human clinical trials according to Good Clinical Practices, or GCP, to establish the safety and 
efficacy of the proposed drug or safety, purity and potency of the proposed biologic, for the intended use;

preparation and submission to the FDA of biologics license application, or BLA;

a determination by the FDA within 60 days of its receipt of a BLA to file the application for review;

satisfactory  completion  of  an  FDA  inspection  of  the  manufacturing  facility  or  facilities  at  which  the  product,  or  components  thereof,  are 
produced to assess compliance with current Good Manufacturing Practices, or cGMP;

review of the product candidate by an FDA advisory committee, where appropriate and if applicable;

payment of user fees for FDA review of the BLA (unless a fee waiver applies);

FDA audits of some clinical trial sites to ensure compliance with GCP; and

FDA review and approval of the BLA.

Preclinical Testing. Before beginning testing of any compounds with potential therapeutic value in human subjects in the United States, stringent 
government requirements for preclinical data must be satisfied. Preclinical testing includes both in vitro, or in an artificial environment outside of a living 
organism, and in vivo, or within a living organism, laboratory evaluation and characterization of the safety and efficacy of a drug and its formulation, as 
well as its chemistry, pharmacology, and toxicity. We perform preclinical testing on all of our product candidates before we initiate any human trials.

Investigational  New  Drug  Application.  Before  clinical  testing  may  begin,  the  results  of  preclinical  testing,  together  with  manufacturing 
information, analytical data and any other available clinical data or literature, must be submitted to the FDA, as part of an IND. The sponsor must also 
include  an  initial  protocol  detailing  the  first  phase  of  the  proposed  clinical  investigation,  together  with  information  regarding  the  qualifications  of  the 
clinical investigators. The provided data must provide an adequate basis for evaluating both the safety and the scientific rationale for the initial clinical 
studies in human volunteers. The IND automatically becomes effective 30 days after receipt by the FDA unless the FDA imposes a clinical hold within that 
30-day time period. In such a case, the IND sponsor and the FDA must resolve any outstanding concerns before the clinical trial can begin. Clinical holds 
also may be imposed by 

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the  FDA  at  any  time  before  or  during  trials  due  to  safety  concerns  or  non-compliance.  As  a  result,  submission  of  an  IND  may  not  result  in  FDA 
authorization to commence a clinical trial.

Clinical Trials. Clinical trials involve the administration of the drug to healthy human volunteers, or to patients with the target disease or disorder 
under  the  supervision  of  a  qualified  physician  (also  called  an  investigator)  pursuant  to  an  FDA-reviewed  protocol.  Human  clinical  trials  typically  are 
conducted in three sequential phases, although the phases may overlap with one another. Clinical trials must be conducted under protocols that detail the 
objectives of the study, the parameters to be used to monitor safety and the efficacy criteria, if any, to be evaluated. Each protocol, and any subsequent 
amendments, must be submitted to the FDA, as part of the IND, or comparable foreign regulatory authorities.

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Phase  1  clinical  trials  test  for  safety,  dose  tolerance,  absorption,  bio-distribution,  metabolism,  excretion,  structure  activity  relationships, 
mechanism of action, and clinical pharmacology and, if possible, for early evidence regarding efficacy. Phase 1 studies may be conducted in 
healthy human volunteers or patients with the target disease or condition. Phase 1a is typically a dose escalation trial. Phase 1b may involve 
cohort  expansion  at  one  or  more  dose  levels  combinations,  or  in  different  populations  to  determine  the  recommended  Phase  2  dose  and 
strategy.

Phase 2 clinical trials are controlled studies that involve a small sample of individuals with the target disease or disorder and seek to assess 
the  efficacy  of  the  drug  for  specific  targeted  indications  to  determine  dose  response  and  the  optimal  dose  range  and  dose  regimen  and  to 
gather additional information relating to safety and potential adverse effects.

Phase 3 clinical trials are adequate and controlled studies that consist of expanded, large-scale studies of patients, at geographically dispersed 
sites, with the target disease or disorder to obtain definitive statistical evidence of the efficacy and safety of the proposed product and dosing 
regimen.  The  safety  and  efficacy  data  generated  from  Phase  3  clinical  trials  typically  form  the  basis  for  FDA  or  comparable  foreign 
regulatory authority approval of the product candidate, as well as product labeling. Typically, two Phase 3 trials are required by the FDA for 
product approval. Under some limited circumstances, however, the FDA may approve a BLA based upon a single Phase 3 clinical study plus 
confirmatory evidence or a single large multicenter trial without confirmatory evidence.

Phase 4 clinical trials, if conducted, are conducted after a product has been approved. These trials can be conducted for a number of purposes, 
including to collect long-term safety information or to collect additional data about a specific population. As part of a product approval, the 
FDA  or  comparable  foreign  regulatory  authorities  may  require  that  certain  Phase  4  studies,  which  are  called  post-marketing  commitment 
studies, be conducted post-approval.  The results of Phase 4 studies can confirm or refute the effectiveness of a product candidate, and can 
provide important safety information.

In March 2022, the FDA released a final guidance entitled “Expansion Cohorts: Use in First-In-Human Clinical Trials to Expedite Development of 
Oncology Drugs and Biologics,” which outlines how drug developers can utilize an adaptive trial design commonly referred to as a seamless trial design in 
early stages of oncology drug development (i.e., the first-in-human clinical trial) to compress the traditional three phases of trials into one continuous trial 
called an expansion cohort trial. Information to support the design of individual expansion cohorts are included in IND applications and assessed by FDA. 
Expansion cohort trials can potentially bring efficiency to drug development and reduce developmental costs and time.

Additional  kinds  of  data  may  also  help  to  support  a  BLA  or  product  development,  such  as  patient  experience  and  real-world  evidence.    For 
appropriate indications sought through supplemental BLAs, data summaries may provide marketing application support. For genetically targeted products 
and variant protein targeted products intended to address an unmet medical need in one or more patient subgroups with a serious or life threatening rare 
disease or condition, the FDA may allow a sponsor to rely upon data and information previously developed by the sponsor or for which the sponsor has a 
right  of  reference,  that  was  submitted  previously  to  support  an  approved  application  for  a  product  that  incorporates  or  utilizes  the  same  or  similar 
genetically  targeted  technology  or  a  product  that  is  the  same  or  utilizes  the  same  variant  protein  targeted  drug  as  the  product  that  is  the  subject  of  the 
application.

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In addition, under the Pediatric Research Equity Act of 2003, or PREA, BLAs and supplements for a new active ingredient, indication, dosage form, 
dosage  regimen,  or  route  of  administration  must  contain  data  to  assess  the  safety  and  efficacy  of  the  product  for  the  claimed  indications  in  all  relevant 
pediatric subpopulations and to support dosing and administration for each pediatric subpopulation for which the product is safe and effective. The FDA 
may grant deferrals for submission of data or full or partial waivers. Unless otherwise required by regulation, PREA does not apply to any drug or biologic 
for an indication for which orphan designation has been granted for the relevant indication except that PREA will apply to an original BLA for a new active 
ingredient that is orphan-designated if the biologic is a molecularly targeted cancer product intended for the treatment of an adult cancer and is directed at a 
molecular target that FDA determines to be substantially relevant to the growth or progression of a pediatric cancer.

Good Clinical Practice. All of the phases of clinical studies must be conducted in conformance with the FDA’s GCP or equivalent standards from 
comparable foreign regulatory authorities, which are ethical and scientific quality standards for conducting, recording and reporting clinical trials to assure 
that  the  data  and  reported  results  are  credible  and  accurate  and  that  the  rights,  safety  and  well-being  of  trial  participants  are  protected.  GCP  include 
requirements that all research subjects provide their informed consent in writing for their participation in any clinical trial. Investigators must also provide 
certain information to the clinical trial sponsors to allow the sponsors to make certain financial disclosures to the FDA. In addition, an Institutional Review 
Board, or IRB, at each study site participating in the clinical trial or a central IRB must review and approve the plan for any clinical trial, informed consent 
forms, and communications to study subjects before a study commences at that site. An IRB considers, among other things, whether the risks to individuals 
participating  in  the  trials  are  minimized  and  are  reasonable  in  relation  to  anticipated  benefits,  and  whether  the  planned  human  subject  protections  are 
adequate. The IRB must continue to oversee the clinical trial while it is being conducted. Once an IND is in effect, each new clinical protocol and any 
amendments to the protocol must be submitted to FDA for review, and to the IRB for approval. If a product candidate is being investigated for multiple 
intended indications, separate INDs may also be required. Progress reports detailing the results of the clinical trials must also be submitted at least annually 
to the FDA and the IRB and more frequently if serious and unexpected suspected adverse events are observed or other significant safety information is 
found, such as any findings from other studies or animal or in vitro testing that suggest a significant risk in humans exposed to the product. The sponsor 
must submit an IND safety report within 15 calendar days after the sponsor determines that the information qualifies for reporting. The sponsor also must 
notify the FDA of any unexpected fatal or life-threatening suspected adverse reaction within seven calendar days after the sponsor's initial receipt of the 
information.

Information about certain clinical trials, including a description of the study and study results, must be submitted within specific timeframes to the 
National Institutes of Health, or NIH, for public dissemination on their clinicaltrials.gov website. Sponsors or distributors of investigational products for the 
diagnosis, monitoring, or treatment of one or more serious diseases or conditions must also have a publicly available policy on evaluating and responding 
to requests for expanded access requests.

The manufacture of investigational biologics for the conduct of human clinical trials is subject to FDA’s current Good Manufacturing Practice, or 
cGMP  requirements.  Investigational  biologics  and  therapeutic  substances  imported  into  the  United  States  are  also  subject  to  regulation  by  the  FDA. 
Further, the export of investigational products outside of the United States is subject to regulatory requirements of the receiving country as well as U.S. 
export requirements under the FDCA.

Concurrent  with  clinical  trials,  companies  usually  complete  additional  animal  studies  and  must  also  develop  additional  information  about  the 
chemistry  and  physical  characteristics  of  the  product  candidate  as  well  as  finalize  a  process  for  manufacturing  the  product  in  commercial  quantities  in 
accordance with cGMP requirements. The manufacturing process must be capable of consistently producing quality batches of the product candidate and, 
among other things, manufacturers must develop methods for testing the identity, strength, quality, potency, and purity of the final product. Additionally, 
appropriate  packaging  must  be  selected  and  tested,  and  stability  studies  must  be  conducted  to  demonstrate  that  the  product  candidate  does  not  undergo 
unacceptable deterioration over its shelf life.

The FDA may order the temporary, or permanent, discontinuation of a clinical trial at any time, or impose other sanctions, if it believes that the 
clinical trial either is not being conducted in accordance with FDA requirements or presents an unacceptable risk to the clinical trial patients. An IRB may
also require the clinical trial at the site to be halted, either temporarily or permanently, for failure to comply with the IRB’s requirements or if the trial poses 
an unexpected serious harm to subjects. The FDA or an IRB may also impose conditions on the conduct of a clinical trial. Clinical trial sponsors may also 
choose to discontinue clinical trials as a result of risks to subjects, a lack of favorable results, or changing business priorities.

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Marketing Approval - Biologics

Biologics  License  Application.  All  data  obtained  from  a  comprehensive  development  program,  including  research  and  product  development, 
manufacturing, preclinical and clinical trials, labeling and related information are submitted in a biologics license application, or BLA, to the FDA and in 
similar  regulatory  filings  with  the  corresponding  agencies  in  other  countries  for  review  and  approval.  In  most  cases,  the  submission  of  a  marketing 
application is subject to a substantial application user fee. These user fees must be paid at the time of the first submission of the application, even if the 
application is being submitted on a rolling basis. Fee waivers or reductions are available in certain circumstances.  By example, product candidates that are 
designated as orphan products, which are further described below, are not subject to application user fees unless the application includes an indication other 
than the orphan indication.

The submission of an application is not a guarantee that the FDA will find the application complete and accept it for filing. The FDA may refuse to 
file the application and request additional information rather than accept the application for filing, in which case the application must be resubmitted with 
the  supplemental  information.  The  resubmitted  application  is  also  subject  to  review  before  the  FDA  accepts  it  for  filing.  The  FDA  has  two  months  to 
review an application for its acceptability for filing. 

Once  an  application  is  accepted  for  filing,  the  FDA  begins  an  in-depth  substantive  review.    The  Prescription  Drug  User  Fee  Act,  or  PDUFA, 
establishes a two-tiered review system: Standard Review and Priority Review. When conducting Priority Review, the FDA has a goal to review and act on 
BLA submissions within six months from the date of the FDA’s acceptance for filing of the application, rather than the ten-month goal under a Standard 
Review. The FDA gives Priority Review status to product candidates that provide safe and effective therapies where no satisfactory alternative exists or to a 
product candidate that are intended to treat serious conditions and, if approved, would provide significant improvements in the safety or effectiveness of the 
treatment, diagnosis, or prevention of the serious condition. The PDUFA date is only a goal, thus, the FDA does not always meet its PDUFA dates. The 
review  process  and  the  PDUFA  date  may  also  be  extended  if  the  FDA  requests  or  the  sponsor  otherwise  provides  substantial  additional  information  or 
clarification regarding the submission.

The FDA may refer certain applications to an advisory committee. Before approving a product candidate for which no active ingredient (including 
any ester or salt of active ingredients) has previously been approved by the FDA, the FDA must either refer that product candidate to an external advisory 
committee or provide in an action letter, a summary of the reasons why the FDA did not refer the product candidate to an advisory committee. The FDA 
may also refer other product candidates to an advisory committee if FDA believes that the advisory committee’s expertise would be beneficial. An advisory 
committee is typically a panel that includes clinicians and other experts, which review, evaluate, and make a recommendation as to whether the application 
should  be  approved  and  under  what  conditions.  The  FDA  is  not  bound  by  the  recommendations  of  an  advisory  committee,  but  it  considers  such 
recommendations carefully when making decisions.

The FDA reviews applications to determine, among other things, whether a product candidate meets the agency’s approval standards and whether 
the manufacturing methods and controls are adequate to assure and preserve the product’s identity, strength, quality, potency, and purity. Before approving
a marketing application, the FDA typically will inspect the facility or facilities where the product is manufactured, referred to as a Pre-Approval Inspection. 
The  FDA  will  not  approve  an  application  unless  it  determines  that  the  manufacturing  processes  and  facilities,  including  contract  manufacturers  and 
subcontractors,  are  in  compliance  with  cGMP  requirements  and  adequate  to  assure  consistent  production  of  the  product  within  required  specifications. 
Additionally, before approving a marketing application the FDA will inspect one or more clinical trial sites to assure compliance with GCP.

In  reviewing  a  BLA,  the  FDA  may  grant  approval  or  deny  the  application  through  a  complete  response  letter,  or  CRL,  if  it  determines  the 
application does not provide an adequate basis for approval requesting additional information. A CRL indicates that the review cycle of the application is 
complete and the application is not ready for approval and describes all of the specific deficiencies that the FDA identified. A CRL generally contains a 
statement  of  specific  conditions  that  must  be  met  in  order  to  secure  final  approval  of  the  marketing  application,  and  may  require  additional  clinical  or 
preclinical testing in order for the FDA to reconsider the application. The deficiencies identified may be minor, for example, requiring labeling changes; or 
major, for example, requiring additional clinical trials. If a CRL is issued, the applicant may either: resubmit the marketing application, addressing all of the 
deficiencies identified in the letter; withdraw the application; or request an opportunity for a hearing.  Even if additional information outlined in a CRL is 
submitted, the FDA may ultimately decide that the BLA does not satisfy the criteria for approval. 

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The  receipt  of  regulatory  approval  often  takes  many  years,  involving  the  expenditure  of  substantial  financial  resources.  The  speed  with  which 
approval is granted often depends on a number of factors, including the severity of the disease in question, the availability of alternative treatments and the 
risks and benefits demonstrated in clinical trials. The FDA may also impose conditions upon approval. For example, it may require a Risk Evaluation and 
Mitigation Strategy, or REMS, for a product. This can include various required elements, such as publication of a medication guide, patient package insert, 
a  communication  plan  to  educate  health  care  providers  of  the  drug’s  risks  and/or  restrictions  on  distribution  and  use,  such  as  limitations  on  who  may 
prescribe or dispense the drug. Following product approval, a REMS may also be required by the FDA if new safety information is discovered and the 
FDA determines that a REMS is necessary to ensure that the benefits of the product outweigh the risks.

The  FDA  may  also  significantly  limit  the  indications  or  populations  approved  for  a  given  product,  require  that  contraindications,  warnings,  or 
precautions  be  included  in  the  product  labeling,  including  a  boxed  warning,    and/or  require,  as  a  condition  of  approval,  enhanced  labeling,  special 
packaging or labeling, post-approval clinical trials, distribution or other risk management mechanisms, expedited reporting of certain adverse events, pre-
approval  of  promotional  materials  or  restrictions  on  direct-to-consumer  advertising,  any  of  which  could  negatively  impact  the  commercial  success  of  a 
drug. The FDA may also not approve label statements that are necessary for successful commercialization and marketing.

After  approval,  some  types  of  changes  to  the  approved  product,  such  as  adding  new  indications,  manufacturing  changes,  and  additional  labeling 
claims, are subject to further testing requirements and FDA review and approval. The FDA may also withdraw the product approval if compliance with the 
pre- and post-marketing regulatory standards are not maintained or if problems occur after the product reaches the marketplace. Further, should new safety 
information arise, additional testing, product labeling, or FDA notification may be required.

Designated Platform Technology. Under the Food and Drug Omnibus Reform Act of 2022, or FDORA, a platform technology incorporated within 
or utilized by a biologic is eligible for designation as a designated platform technology if (1) the platform technology is incorporated in, or utilized by, a 
product approved under a BLA; (2) preliminary evidence submitted by the sponsor of the approved or licensed product, or a sponsor that has been granted a 
right of reference to data submitted in the application for such product, demonstrates that the platform technology has the potential to be incorporated in, or 
utilized by, more than one product without an adverse effect on quality, manufacturing, or safety; and (3) data or information submitted by the applicable 
person  indicates  that  incorporation  or  utilization  of  the  platform  technology  has  a  reasonable  likelihood  to  bring  significant  efficiencies  to  the  drug 
development  or  manufacturing  process  and  to  the  review  process.  A  sponsor  may  request  the  FDA  to  designate  a  platform  technology  as  a  designated 
platform  technology  concurrently  with,  or  at  any  time  after,  submission  of  an  IND  application  for  a  product  that  incorporates  or  utilizes  the  platform 
technology that is the subject of the request. If so designated, the FDA may expedite the development and review of any subsequent original BLA for a 
product  that  uses  or  incorporates  the  platform  technology.  Designated  platform  technology  status  does  not  ensure  that  a  product  will  be  developed  or 
reviewed  by  the  FDA  more  quickly  or  receive  FDA  approval.  In  addition,  the  FDA  may  revoke  a  designation  if  the  FDA  determines  that  a  designated 
platform technology no longer meets the criteria for such designation.

Breakthrough Therapy. Under the provisions of the Food and Drug Administration Safety and Innovation Act, or FDASIA, the FDA may designate 
a product as a breakthrough therapy if the product is intended, alone or in combination with one or more other products, to treat a serious or life-threatening 
disease or condition, and preliminary clinical evidence indicates that the product may demonstrate substantial improvement over existing therapies on one 
or more clinically significant endpoints, such as substantial treatment effects observed early in clinical development. Products designated as breakthrough 
therapies are also eligible for accelerated approval. A sponsor may request that a product candidate be designated as a breakthrough therapy concurrently 
with, or at any time after, the submission of an IND, and the FDA must determine if the candidate qualifies for breakthrough therapy designation within 60 
days  of  receipt  of  the  sponsor’s  request.  If  so  designated,  the  FDA  must  take  certain  actions,  such  as  holding  timely  meetings  and  providing  advice, 
intended to expedite the development and review of an application for approval of a breakthrough therapy. The FDA may rescind breakthrough therapy 
designation if the product candidate does not continue to meet the criteria for such designation.

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Orphan Drugs. Under the Orphan Drug Act, an applicant can request the FDA to designate a product as an “orphan drug” in the United States if the 
drug is intended to treat an orphan, or rare, disease or condition. A disease or condition is considered orphan if it affects fewer than 200,000 people in the 
United States, or affecting more than 200,000 in the United States and for which there is no reasonable expectation that the cost of developing and making 
the product available in the United States will be recovered from United States sales. Additionally, sponsors must present a plausible hypothesis for clinical 
superiority to obtain orphan drug designation if there is a product already approved by the FDA that that is considered by the FDA to be the same as the 
already  approved  product  and  is  intended  for  the  same  indication.  This  hypothesis  must  be  demonstrated  to  obtain  orphan  exclusivity.  Orphan  drug 
designation  must  be  requested  before  submitting  a  BLA.  Products  designated  as  orphan  drugs  are  eligible  for  special  grant  funding  for  research  and 
development, potential tax credits for research, waived user fees for marketing applications and a seven-year period of market exclusivity after marketing 
approval. The tax advantages, however, were limited in the 2017 Tax Cuts and Jobs Act. 

Orphan drug exclusivity (afforded to the first applicant to receive approval for an orphan designated drug) prevents FDA approval of applications by 
others for the same drug for the designated orphan disease or condition. The FDA may approve a subsequent application from another applicant if the FDA 
determines that the application is for a different drug or different use, or if the FDA determines that the subsequent product is clinically superior, or that the 
holder of the initial orphan drug approval cannot assure the availability of sufficient quantities of the drug to meet the public’s need. A grant of an orphan 
designation is not a guarantee that a product will be approved. On November 26, 2019 FDA granted Orphan Drug Designation to APVO436, a bispecific 
antibody candidate, for the treatment of acute myelogenous leukemia. APVO436 is currently being evaluated in a Phase 1b clinical trial in patients with 
AML and MDS.

Post-Approval Requirements. Any biologic for which we receive FDA approval will be subject to continuing regulation by the FDA, including, 
among other things, record keeping requirements, reporting of adverse experiences, reporting of deviations and shortages, providing the FDA with updated 
safety and efficacy information, product sampling and distribution requirements, cGMP, and restrictions on advertising and promotion. Adverse events that 
are reported after marketing approval can result in additional limitations being placed on the product’s distribution or use and, potentially, withdrawal or 
suspension  of  the  product  from  the  market.  In  addition,  the  FDA  authority  to  require  post-approval  clinical  trials  and/or  safety  labeling  changes  if 
warranted. In certain circumstances, the FDA may impose a REMS after a product has been approved. 

Facilities involved in the manufacture and distribution of approved products are required to register their establishments with the FDA and certain 
state agencies, list their manufactured products, and are subject to periodic unannounced inspections by the FDA for compliance with cGMP and other 
laws.  Manufacturers  and  other  parties  involved  in  the  supply  chain  for  prescription  drug  products  must  also  comply  with  product  tracking  and  tracing 
requirements  and  for  notifying  the  FDA  of  counterfeit,  diverted,  stolen  and  intentionally  adulterated  products  or  products  that  are  otherwise  unfit  for 
distribution  in  the  United  States.  Recently,  the  information  that  must  be  submitted  to  FDA  regarding  manufactured  products  was  expanded  through  the 
Coronavirus  Aid,  Relief,  and  Economic  Security,  or  CARES,  Act  to  include  the  volume  of  drugs  produced  during  the  prior  year.    Manufacturers  must 
continue to expend time, money, and effort in the areas of production and quality-control to maintain compliance with cGMP. Regulatory authorities may 
withdraw  product  approvals,  require  label  modifications,  or  request  product  recalls,  among  other  actions,  if  a  company  fails  to  comply  with  regulatory 
standards, if it encounters problems following initial marketing, or if previously unrecognized problems are subsequently discovered.

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The FDA also closely monitors advertising and promotional materials we may disseminate for our products for compliance with restrictions on off-
label  promotion  and  other  laws.  We  may  not  promote  our  products  for  conditions  of  use  that  are  not  included  in  the  approved  package  inserts  for  our 
products. Physicians, in their independent professional medical judgment, however, may prescribe legally available products for unapproved indications 
that are not described in the product’s labeling and that differ from those tested and approved by the FDA. Certain additional restrictions on advertising and 
promotion  exist  for  products  that  have  boxed  warnings  in  their  approved  package  inserts.    The  FDA  and  other  agencies  actively  enforce  the  laws  and 
regulations  prohibiting  the  promotion  of  off-label  uses,  and  a  company  that  is  found  to  have  improperly  promoted  off-label  uses  may  be  subject  to 
significant liability, including, but not limited to, criminal and civil penalties under the FDCA and False Claims Act, exclusion from participation in federal
healthcare programs, mandatory compliance programs under corporate integrity agreements, suspension and debarment from government contracts, and 
refusal of orders under existing government contracts.

Biosimilars and Exclusivity. The Biologics Price Competition and Innovation Act of 2009, or BPCIA, creates an abbreviated approval pathway for 
biological  products  shown  to  be  highly  similar  to  or  interchangeable  with  an  FDA-licensed  reference  biological  product.  Biosimilarity  sufficient  to 
reference  a  prior  FDA-approved  product  requires  a  high  similarity  to  the  reference  product  notwithstanding  minor  differences  in  clinically  inactive 
components,  and  no  clinically  meaningful  differences  between  the  biological  product  and  the  reference  product  in  terms  of  safety,  purity,  and  potency. 
Biosimilarity  must  be  shown  through  analytical  studies,  animal  studies,  and  at  least  one  clinical  trial,  absent  a  waiver  by  the  FDA.  There  must  be  no 
difference between the reference product and a biosimilar in mechanism of action, conditions of use, route of administration, dosage form, and strength. A 
biosimilar product may be deemed interchangeable with a prior approved product if it meets the higher hurdle of demonstrating that it can be expected to 
produce the same clinical results as the reference product and, for products administered multiple times, the biologic and the reference biologic may be 
switched after one has been previously administered without increasing safety risks or risks of diminished efficacy relative to exclusive use of the reference 
biologic.

A reference biologic is granted 12 years of exclusivity from the time of first licensure, and no application for a biosimilar can be submitted for four 
years from the date of licensure. However, certain changes and supplements to an approved BLA, and subsequent applications filed by the same sponsor, 
manufacturer,  licensor,  predecessor  in  interest,  or  other  related  entity  do  not  qualify  for  the  twelve-year  exclusivity  period.  The  first  biologic  product 
submitted under the abbreviated approval pathway that is determined to be interchangeable with the reference product is eligible for a period of exclusivity 
against  other  biologics  submitted  under  the  abbreviated  approval  pathway  during  which  time  the  FDA  may  not  determine  that  another  product  is 
interchangeable with the same reference product for any condition of use. The FDA may approve multiple “first” interchangeable products so long as they 
are all approved on the same first day of marketing. This exclusivity period, which may be shared amongst multiple first interchangeable products, lasts for 
the lesser of (i) one year after the first commercial marketing, (ii) 18 months after approval if there is no legal challenge, (iii) 18 months after the resolution 
in the applicant’s favor of a lawsuit challenging the biologic’s patents if an application has been submitted, or (iv) 42 months after the application has been 
approved if a lawsuit is ongoing within the 42-month period. The PHSA also includes provisions to protect reference products that have patent protection. 
The biosimilar product sponsor and reference product sponsor may exchange certain patent and product information for the purpose of determining whether 
there should be a legal patent challenge. Based on the outcome of negotiations surrounding the exchanged information, the reference product sponsor may 
bring a patent infringement suit and injunction proceedings against the biosimilar product sponsor. The biosimilar applicant may also be able to bring an 
action for declaratory judgment concerning the patent. 

In an effort to increase competition in the biologic product marketplace, Congress, the executive branch, and  the FDA have taken certain legislative 
and  regulatory  steps.  For  example,  in  2020,  FDA  finalized  a  guidance  to  facilitate  drug  and  biologic  product  importation.  Moreover,  the  2020  Further 
Consolidated  Appropriations  Act  included  provisions  requiring  that  sponsors  of  approved  biologic  products,  including  those  subject  to  REMS,  provide 
samples  of  the  approved  products  to  persons  developing  biosimilar  products  within  specified  timeframes,  in  sufficient  quantities,  and  on  commercially 
reasonable market-based terms. Failure to do so can subject the approved product sponsor to civil actions, penalties, and responsibility for attorney’s fees 
and costs of the civil action. This same bill also includes provisions with respect to shared and separate REMS programs for reference and generic drug 
products.

Patent Term Restoration.  If approved, biologic products may also be eligible for periods of U.S. patent term restoration. If granted, patent term 
restoration extends the patent life of a single unexpired patent, that has not previously been extended, for a maximum of five years. The total patent life of 
the product with the extension also cannot exceed fourteen years from the product’ approval date. Subject to the prior limitations, the period of the 

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extension is calculated by adding half of the time from the effective date of an IND to the initial submission of a marketing application, and all of the time 
between the submission of the marketing application and its approval. This period may also be reduced by any time that the applicant did not act with due 
diligence.

Regulation in the European Union. Product development, the regulatory approval process and safety monitoring of medicinal products and their 
manufacturers in the European Union proceed broadly in the same way as they do in the United States. Therefore, many of the issues discussed above 
apply similarly in the context of the European Union. In addition, drugs are subject to the extensive price and reimbursement regulations of the various EU 
member states. The Clinical Trial Regulation EU 536/2014 (CTR) repealed the Clinical Trials Directive 2001/20/EC, as amended (CTD) on January 31, 
2022, subject to a three-year transition period. The CTR makes it possible within the EU for sponsors to submit a single harmonized electronic submission 
via a single online platform known as the Clinical Trials Information System (CTIS) for approval to conduct a clinical trial in several European countries 
and have a single assessment process for clinical trials conducted in multiple member states. Under the CTR, sponsors can use the CTIS from January 31, 
2022 but are not obliged to use it immediately, in line with a three-year transition period.  Sponsors may use CTIS to apply to conduct a clinical trial under 
the CTR or may choose to apply to conduct a trial under the CTD until January 30, 2023.  From January 31, 2023, sponsors will need to use CTIS to apply 
to start a new clinical trial in the EU/EEA.  From January 31, 2025, any trials approved under the CTD that continue running will need to comply with the 
CTR and their sponsors must have recorded information on such trials in CTIS.

Healthcare Fraud and Abuse and Anti-Corruption Laws

Various federal and state laws pertaining to health care “fraud and abuse” exist, including state and federal anti-kickback laws false claims laws, and 
patent privacy and security laws. Anti-kickback laws make it illegal for a drug manufacturer to knowingly and willfully solicit, offer, receive or pay any 
remuneration in exchange for, to induce, or in return for, the referral of business that may be reimbursed by a third party payor (including Medicare and 
Medicaid), including the purchase, prescribing or recommendation of a particular drug. Due to the breadth of the statutory provisions, it is possible that our 
practices might be challenged under anti-kickback or similar laws. Civil and criminal false claims laws, false statement laws and civil monetary penalty 
laws prohibit, among other things, anyone from knowingly presenting, or causing to be presented for payment, to third-party payors (including Medicare 
and  Medicaid)  claims  for  reimbursed  drugs  or  services  that  are  false  or  fraudulent,  claims  for  items  or  services  not  provided  as  claimed  or  claims  for 
medically  unnecessary  items  or  services.  Our  activities  relating  to  the  sale  and  marketing  of  our  products  may  be  subject  to  scrutiny  under  these  laws. 
Privacy and security laws, such as the Health Insurance Portability and Accountability Act of 1996, or HIPAA, create federal 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. Additionally, HIPAA, as amended by 
the  Health  Information  Technology  for  Economic  and  Clinical  Health,  or  HITECH,  and  their  respective  implementing  regulations,  impose  certain 
requirements relating to the privacy, security, and transmission of individually identifiable health information. 

In  addition,  as  part  of  the  Affordable  Care  Act,  the  federal  government  enacted  the  Physician  Payment  Sunshine  Act.  Manufacturers  of  drugs 
biologics  and  devices  that  are  reimbursed  by  Medicare,  Medicaid  or  the  Children’s  Health  Insurance  Program  are  required  to  annually  report  to  CMS 
payments and transfers of value made to physicians (defined to include doctors, dentists, optometrists, podiatrists and chiropractors) and teaching hospitals, 
and ownership or investment interest held by physicians and their family members. Effective January 1, 2022, these reporting obligations extend to include 
transfers  of  value  made  to  certain  non-physician  providers  (physician  assistants,  nurse  practitioners,  clinical  nurse  specialists,  certified  registered  nurse 
anesthetists and anesthesiologist assistants, and certified-nurse midwives).

Our operations are also subject to compliance with the U.S. Foreign Corrupt Practices Act, or FCPA, which prohibits corporations and individuals 
from directly or indirectly paying, offering to pay, or authorizing the payment of anything of value to any foreign government official or employee, or any 
foreign political party or political candidate in an attempt to obtain or retain business or to otherwise influence such official, employee, party or candidate 
in his or her or its official capacity. Our operations are also subject to compliance with the U.K. Bribery Act of 2010, which applies to activities both in the 
public and private sector, Canada’s Corruption of Foreign Public Officials Act and similar laws and industry codes in other countries where we do business.

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Other Regulation

Our  present  and  future  business  has  been  and  will  continue  to  be  subject  to  various  other  laws  and  regulations.  Various  laws,  regulations  and 
recommendations relating to safe working conditions, laboratory practices, the experimental use of animals, and the purchase, storage, movement, import, 
export,  use  and  disposal  of  hazardous  or  potentially  hazardous  substances,  including  radioactive  compounds  and  infectious  disease  agents  used  in 
connection with our product development, are or may be applicable to our activities.

Employees and Office Location

HUMAN CAPITAL

Aptevo employed 45 full-time persons as of December 31, 2022. The team is comprised of a dedicated group of accomplished professionals who 
bring a broad range of academic achievements combined with significant industry experience. We believe that our future success will depend in part on our 
continued  ability  to  attract,  hire  and  retain  qualified  personnel.  To  this  end,  we  strive  to  maintain  competitive  base  compensation  structures  and 
comprehensive benefits packages, and to engage our employees through ongoing development and training. None of our employees are represented by a 
labor union or covered by collective bargaining agreements. We believe our relationships with our employees are positive.

Our principal executive offices are located at 2401 4th Ave., Suite 1050, Seattle, Washington 98121. Our telephone number is (206) 838-0500. 

Corporate Values

Leading by our core values unifies Aptevo and enables every employee to be an agent of positive culture. We believe that our success depends on 
creating  an  environment  that  is  personally  and  professionally  rewarding  and  creating  opportunities  for  personal  and  professional  development.  These 
values, which are the foundation of our Company culture, are:

•

Empowerment

o

o

o

Act respectfully with all;

Deal with each other directly, clearly, and transparently; and

Routinely seek feedback and receive it maturely.

•

Ownership

o Work towards objectives with focus and speed without sacrificing quality;

o

o

Approach our work like the business owners; and

Invest with the best interest of the Company in mind.

•

Professionalism

o

o

o

Assume all employees are capable and collegial adults;

Leaders enable employees to accept delegation; and

Bureaucracy and administrative tasks must be justified.

We  consider  these  values  to  be  an  integral  part  of  our  corporate  goal  setting  and  review  process.  We  believe  in  empowering  our  employees  and 
consider them as owners of the business. We treat each other with respect and maintain a high level of professionalism and accountability. Our Board of 
Directors and executive team continues to monitor and focus on our human capital resources to ensure we live by our core values.

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Diversity, Equity, and Inclusion

Diversity,  equity,  and  inclusion  (DEI)  is  of  great  importance  to  our  culture,  day-to-day  operations,  and  future  success.  Aptevo  is  an  equal 
opportunity employer, and we are committed to fostering DEI within our work environment and beyond. We believe DEI promotes our business growth, 
drives  innovation  in  the  therapeutic  product  candidates  we  develop,  and  in  the  way  we  solve  problems.  Our  efforts  are  focused  on  hiring  and  retaining 
qualified candidates, and promoting a supportive and inclusive working environment for all of our employees. The Company is resolute on its commitment
to the development and fair treatment of all candidates and employees, including equal opportunity hiring and advancement practices and policies, and anti-
harassment and anti-retaliation policies. We believe that fostering diversity, equity, and inclusion is a key element to discovering, developing, and bringing 
transformative therapies to patients. As of December 31, 2022, 60% of our workforce and 50% of our leadership (at the Director level and above) were 
female. In addition, 40% of our workforce and 36% of our leadership (at the Director level and above) were racially or ethnically diverse. We strive to build 
a workforce representative of the people we serve and to nurture an inclusive culture where all voices are welcomed, heard, and respected. 

Recruiting and Retention

We invest in resources to recruit, develop, and retain the talent needed to achieve our business goals. We believe in supporting our employees to 
reach their full potential and strive to promote internally. We have been successful in attracting and retaining talented personnel to support our business, 
though competition for personnel in our industry is intense. 

Compensation and Benefits

Our compensation packages are designed to attract and retain talent, drive Company performance and achieve business goals. In setting appropriate 
compensation levels, we look at the average base pay rate for each position based on market data. We also offer an annual cash incentive program and long-
term  equity  incentive  plans  designed  to  assist  in  attracting,  retaining,  and  motivating  employees  and  promoting  the  creation  of  long-term  value  for 
stockholders. Further, all employees are eligible for health insurance and other health benefits, paid and unpaid leaves, retirement benefits with Company 
match,  and  life  and  disability  coverage/insurance.  We  have  an  unlimited  paid  time  off  policy  that  provides  employees  with  considerable  flexibility  in 
scheduling time away from work.

Health & Safety

Employee safety and well-being is of paramount importance to us and was of continued focus in 2022 in light of the ongoing COVID-19 global 
pandemic. The Company maintains a hybrid working environment. Our essential employees, which mainly include our research and development team, 
work onsite, and non-essential employees work remotely or hybrid. We equip our employees working remotely or hybrid with necessary equipment and 
tools to continue to collaborate and remain productive. 

Additionally,  we  have  an  Environmental,  Health  and  Safety  program  that  focuses  on  implementing  policies  and  training  programs,  as  well  as 

performing self-audits to enhance work safety.

ORGANIZATIONAL HISTORY

Aptevo  was  formed  as  a  wholly-owned  subsidiary  of  Emergent  for  the  purpose  of  serving  as  the  parent  company  for  the  development-based 
biotechnology  business  focused  on  novel  oncology,  hematology,  and  autoimmune  and  inflammatory  therapeutics  and  was  incorporated  in  Delaware  in 
February  2016.  On  August  1,  2016,  Emergent  effectuated  a  spin-off  of  Aptevo  into  an  independent  publicly  traded  company  and  made  a  pro  rata 
distribution  of  Aptevo  common  stock  to  Emergent’s  stockholder  base  at  that  time.  Accordingly,  Aptevo  has  operated  as  an  independent  publicly  traded 
company since August 1, 2016. 

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AVAILABLE INFORMATION

The Aptevo website is located at www.AptevoTherapeutics.com. Aptevo makes certain filings with the Securities and Exchange Commission (the 
SEC), including its Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and all amendments to those reports 
filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act available free of charge through its website as soon as reasonably practicable after 
we electronically file those reports with, or furnish them to, the SEC.

In  addition,  all  disclosures  that  are  required  to  be  posted  by  applicable  law,  the  rules  of  the  SEC  or  the  Nasdaq  listing  standards  regarding  any 
amendment to, or waiver of, our code of business conduct and ethics are available free of charge on our website. We intend to use our website as a means 
of  disclosing  material  non-public  information  and  for  complying  with  our  disclosure  obligations  under  Regulation  FD.  Accordingly,  investors  should 
monitor our website, in addition to following our press releases, investor deck, SEC filings and public conference calls and webcasts. We have included our 
website  address  as  an  inactive  textual  reference  only.  The  information  contained  on,  or  that  can  be  accessed  through,  our  website  is  not  a  part  of,  or 
incorporated by reference into, this Annual Report on form 10-K. 

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Item 1A. Risk Factors. 

We  are  subject  to  significant  risks  and  uncertainties  that  could  impact  the  Company’s  businesses,  results  of  operations  and  financial  condition, 
including by causing our actual results to differ materially from those projected in any forward-looking statements. Additional risks and uncertainties that 
are not currently known to the Company or management or that are not currently believed by the Company or management to be material may also harm 
the Company’s business, financial condition and results of operation. You should carefully consider the following risks and other information in this Annual 
Report on Form 10-K in evaluating us and our common stock. 

RISK FACTOR SUMMARY

The following is a summary of the material risks to our business, operations, and ownership of our common stock:

•

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•

We have a history of losses and may not be profitable in the future. 

We will require additional capital and may be unable to raise capital when needed or on acceptable terms. 

Our  success  is  dependent  on  our  continued  ability  to  attract,  motivate  and  retain  key  personnel,  and  any  failure  to  attract  or  retain  key 
personnel may negatively affect our business.

If we experience delays or difficulties in the commencement, site initiation, enrollment of patients or completion of our clinical trials, the 
time to reach critical trial data and receipt of any necessary regulatory approvals could be delayed.

Our  long-term  success  depends,  in  part,  upon  our  ability  to  develop,  receive  regulatory  approval  for  and  commercialize  our  product 
candidates. 

We  may  not  be  successful  in  establishing  and  maintaining  collaborations  that  leverage  our  capabilities  in  pursuit  of  developing  and 
commercializing our product candidates.

We face and will continue to face substantial competition and our failure to effectively compete may prevent us from achieving significant 
market penetration for our product candidates, if approved.

Our business is affected by macroeconomic conditions, including rising and fluctuating inflation, interest rates, market volatility, economic 
uncertainty, and supply chain constraints.

We may not be successful in our efforts to use and further develop our ADAPTIR or ADAPTIR-FLEX platforms.

If we are unable to protect our intellectual proprietary rights, our business could be harmed.

The ongoing COVID-19 pandemic, including the identification of new variants of the COVID-19 virus, could adversely impact our business, 
including our clinical trials.

Actions  of  activist  stockholders  against  us  have  been  and  could  be  disruptive  and  costly  and  may  cause  uncertainty  about  the  strategic 
direction of our business.

Our future cash flow will depend, in part, on the ability of Pfizer to successfully sell RUXIENCE and our receipt of milestone payments from 
HCR  in  connection  therewith.  If  Pfizer  is  unable,  or  does  not  devote  sufficient  resources,  to  maintain  or  continue  increasing  sales  of 
RUXIENCE, or if HCR does not comply with the Royalty Purchase Agreement, our results of operations will be adversely affected.

The  results  of  our  current  and  planned  preclinical  studies  and  clinical  trials  may  not  satisfy  the  requirements  of  the  FDA  or  non-U.S. 
regulatory authorities. Results from early-preclinical studies and clinical trials may not be predictive of results from later-stage or other trials 
and interim or top line data may be subject to change or qualification based on the complete analysis of data.

Serious adverse events, undesirable side effects or other unexpected properties of our product candidates may be identified that could delay, 
prevent,  or  cause  the  withdrawal  of  regulatory  approval,  limit  the  commercial  potential,  or  result  in  significant  negative  consequences 
following marketing approval.

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•

•

•

•

•

We depend on third parties to conduct our clinical and non-clinical trials. If these third parties do not effectively carry out their contractual 
duties,  comply  with  regulatory  requirements  or  meet  expected  deadlines,  we  may  not  be  able  to  obtain  regulatory  approval  for  or
commercialize our product candidates and our business could be substantially harmed.

Our stock price may be volatile.

Our common stock may be at risk for delisting from the Nasdaq Capital Market in the future if we do not maintain compliance with Nasdaq’s 
continued listing requirements. Delisting could adversely affect the liquidity of our common stock and the market price of our common stock 
could decrease.

We may be subject to periodic litigation, which could result in losses or unexpected expenditure of time and resources. 

Our  future  income  will  depend,  in  part,  on  the  ability  of  Medexus  to  successfully  further  develop,  market  and  commercialize  IXINITY, 
resulting in milestone payments and deferred payments to the Company by Medexus. 

RISKS RELATED TO OUR BUSINESS

Financial Risks

We have a history of losses and may not be profitable in the future. 

We have experienced significant operating losses in the past and may not be profitable in the future. For the year ended December 31, 2022, we had 
net income of $8.0 million compared to $28.5 million net loss for the same period in 2021. The net income for the year ended December 31, 2022 was due 
to a one-time $37.2 million gain recognized as a result of Amendment to Royalty Purchase Agreement with HCR. As of December 31, 2022, we had an 
accumulated deficit of $206.0 million. We expect to continue to incur annual net operating losses for the foreseeable future, and will require substantial 
resources over the next several years as we expand our efforts to discover, develop and commercialize immunotherapeutic candidates. While we believe 
our  existing  cash  and  cash  equivalents  and  the  funding  provided  by  our  IXINITY  deferred  payment  streams,  the  ability  to  receive  Milestone  Amounts 
under the Royalty Purchase Agreement with HCR, access to credit under the Credit Agreement with MidCap Financial, our ability to issue securities under 
the Equity Distribution Agreement with Piper Sandler and our Purchase Agreement with Lincoln Park Capital, and exercises of warrants will provide us 
with sufficient liquidity to meet our cash requirements through at least the next twelve months, our future success and ability to attain profitability will 
depend upon our ability to develop and commercialize our product candidates.

We will require additional capital and may be unable to raise capital when needed or on acceptable terms. 

As of December 31, 2022, we had cash, cash equivalents, and restricted cash in the amount of $22.6 million. We will require additional funding to 
grow  our  business  including  to  support  the  ongoing  clinical  development  of  APVO436,  develop  additional  products,  support  commercial  marketing 
activities or otherwise provide additional financial flexibility. If we are not able to secure adequate additional funding, we may need to make reductions in 
spending. This may include extending payment terms with suppliers, liquidating assets, and suspending or curtailing planned programs. We may also have 
to delay, reduce the scope of, suspend or eliminate one or more research and development programs. We may also be forced to grant rights to develop and 
market our product candidates that we would otherwise prefer to develop or market ourselves or we may be unable to take advantage of future business 
opportunities. A failure to raise the additional funding or to effectively implement cost reductions could harm our business, results of operations and future 
prospects. Our future capital requirements will depend on many factors, including: 

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•

•

•

the level, timing and receipt of any milestone or deferred payments under our agreement with Medexus with respect to the sales of IXINITY;

whether and to what extent future milestone payments are received under our Amendment to Royalty Purchase Agreement with HCR; 

the extent to which we invest in products or technologies; 

the ability to satisfy the payment obligations and covenants under any future indebtedness;

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•

•

•

•

•

•

the ability to secure partnerships and/or collaborations that generate additional cash; 

capital improvements to our facilities; 

the scope, progress, results, and costs of our development activities;

clinical  development  costs,  timing,  and  other  requirements  to  complete  dosing  of  our  Phase  1b  clinical  trial  for  APVO436  and  Phase  1 
clinical trial of ALG.APV-527, as well as future clinical trials;

the  cost  of  preparing,  filing  and  prosecuting  patent  applications,  obtaining,  maintaining,  enforcing  and  protecting  our  intellectual  property 
rights and defending intellectual property-related claims; and

macroeconomic conditions, including the impact of inflation and cost of capital.

Further, changing circumstances, some of which may be beyond our control, such as macroeconomic conditions, could cause us to consume capital 

significantly faster than we currently anticipate, and we may need to seek additional funds sooner than planned.

We  cannot  guarantee  that  future  financing  will  be  available  in  sufficient  amounts,  or  on  commercially  reasonable  terms,  or  at  all.  If  our  capital 
resources are insufficient to meet our future capital requirements, we will need to finance our cash needs through bank loans, public or private equity or 
debt offerings, collaboration and licensing arrangements, or other strategic transactions. Our ability to raise future capital on acceptable terms or at all will 
be impacted by the macroeconomic environment, including rising and fluctuating interest rates, economic uncertainty and volatility in the capital market, 
geopolitical tensions, including the ongoing war between Ukraine and Russia, or other factors could also adversely impact our ability to access capital as
and  when  needed  or  increase  our  costs  in  order  to  raise  capital.  Current  capital  market  conditions,  including  the  impact  of  inflation,  have  increased 
borrowing  rates  and  can  be  expected  to  significantly  increase  our  cost  of  capital  as  compared  to  prior  periods.  Future  issuances  of  common  stock  may 
include, but not be limited to, (i) any sale of up to $50.0 million worth of shares of our common stock pursuant to our Equity Distribution Agreement with 
Piper Sandler, (ii) any sale of up to $35 million worth of shares of our common stock to issue from our Purchase Agreement with Lincoln Park, (iii) the 
issuance of up to 350,589 remaining outstanding shares of common stock upon the exercise of warrants issued in connection with our March 2019 public 
offering of common stock and warrants or (iv) the issuance of common stock in a firm commitment offering or private placement. Public or bank debt 
financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional 
debt, making capital expenditures, pursuing acquisition opportunities, declaring dividends, our ability to acquire, sell or license intellectual property rights 
and  other  operating  restrictions  that  could  adversely  impact  our  ability  to  conduct  our  business.  If  we  raise  funds  by  issuing  equity  securities,  our 
stockholders  will  experience  dilution.  If  we  raise  funds  through  collaboration  and  licensing  arrangements  with  third  parties  or  enter  into  other  strategic 
transactions, it may be necessary to relinquish valuable rights to our technologies or product candidates or grant licenses on terms that may not be favorable 
to us. If financing is unavailable or lost, our business, results of operations, financial condition and financial prospects would be adversely affected and we
could be forced to delay, reduce the scope of or eliminate many of our planned activities.

Further, SEC regulations limit the amount of funds we can raise during any 12-month period pursuant to our shelf registration statement on Form S-
3. On March 29, 2022, we filed an amendment to the prospectus related to the Registration Statement on Form S-3 filed on December 14, 2020 pursuant to 
General  Instruction  I.B.6  of  Form  S-3  (General  Instruction  I.B.6),  which  updates  the  amount  of  shares  that  we  are  eligible  to  sell  under  the  Equity 
Distribution Agreement. So long as the aggregate market value of our common stock held by non-affiliates is less than $75 million, we will not sell shares 
under the Equity Distribution Agreement with a value of more than one-third of the aggregate market value of our common stock held by non-affiliates in 
any 12-month period due to the limitations of General Instruction I.B.6 of Form S-3 and the current public float of our common stock. The limitations of 
General  Instruction  I.B.6  do  not  apply  to  sales  of  our  shares  under  our  Purchase  Agreement  with  Lincoln  Park  Financial  LLC  as  those  sales  were 
committed prior to us being subject to the limitations of General Instruction I.B.6. If we are required to file a new registration statement on another form, 
we may incur additional costs and be subject to delays in raising capital due to review by SEC staff.

Our  business  is  affected  by  macroeconomic  conditions,  including  rising  and  fluctuating  inflation,  interest  rates,  market  volatility,  economic 
uncertainty, and supply chain constraints.  

Various macroeconomic factors have in the past and could adversely affect in the future our business and the results of our operations and financial 

condition, including changes in inflation, interest rates and overall economic 

25

 
conditions  and  uncertainties  such  as  those  resulting  from  the  current  and  future  conditions  in  the  global  financial  markets.  For  instance,  inflation  has 
negatively  impacted  the  Company  by  increasing  our  labor  costs,  through  higher  wages  and  higher  interest  rates,  and  operating  costs.  Supply  chain 
constraints have led to higher inflation, which if sustained could have a negative impact on the Company's product development and operations. If inflation 
or other factors were to significantly increase our business costs, our ability to develop our current pipeline and new therapeutic products may be negatively 
affected. Interest rates, the liquidity of the credit markets and the volatility of the capital markets could also affect the operation of our business and our 
ability to raise capital on favorable terms, or at all, in order to fund our operations. 

We are susceptible to changes in the U.S. economy.  The U.S. economy has been affected from time to time by economic downturns or recessions, 
supply  chain  constraints,  rising  and  fluctuating  inflation  and  interest  rates,  restricted  credit,  poor  liquidity,  reduced  corporate  profitability,  volatility  in 
credit, equity and foreign exchange markets, bankruptcies and overall uncertainty with respect to the economy. For example, on March 10 and March 12, 
2023, the Federal Deposit Insurance Corporation (“FDIC”) took control and was appointed receiver of Silicon Valley Bank (“SVB”) and Signature Bank, 
respectively,  after  each  bank  was  unable  to  continue  their  operations.  These  events  exposed  vulnerabilities  in  the  banking  sector,  including  legal 
uncertainties, significant volatility and contagion risk, and caused market prices of regional bank stocks to plummet. As of the date of this filing, we don’t 
have any exposure to SVB and Signature Bank, however, we are unable to predict the extent or nature of the impacts of these evolving circumstances at 
this  time.  If,  for  example,  other  banks  and  financial  institutions  enter  receivership  or  become  insolvent  in  the  future  in  response  to  financial  conditions 
affecting the banking system and financial markets, our ability to access our existing cash, cash equivalents and investments may be threatened. While it is 
not possible at this time to predict the extent of the impact that the failure of SVB and Signature Bank or the high market volatility and instability of the 
banking sector could have on economic activity and our business in particular, the failure of other banks and financial institutions and the measures taken 
by  governments,  businesses  and  other  organizations  in  response  to  these  events  could  adversely  impact  our  business,  financial  condition  and  results  of 
operations.

In addition, any further deterioration in the U.S. economy would likely affect the operation of our business and ability to raise capital.  In addition, 
U.S. debt ceiling and budget deficit concerns have increased the possibility of additional credit-rating downgrades and economic slowdowns, or a recession 
in the United States. Although U.S. lawmakers passed legislation to raise the federal debt ceiling on multiple occasions, ratings agencies have lowered or 
threatened  to  lower  the  long-term  sovereign  credit  rating  on  the  United  States.  The  impact  of  this  or  any  further  downgrades  to  the  U.S.  government’s 
sovereign credit rating or its perceived creditworthiness could adversely affect the U.S. and global financial markets and economic conditions. Similarly, 
these macroeconomic factors could affect the ability of our third-party suppliers and manufacturers to manufacture clinical trial materials for our product 
candidates.

Actions of activist stockholders against us have been and could be disruptive and costly and may cause uncertainty about the strategic direction of our 
business.

Stockholders have in the past and may, from time to time, engage in proxy solicitations or advance stockholder proposals, or otherwise attempt to 
effect changes and assert influence on our board of directors and management. For example, on February 9, 2021, Tang Capital Partners LP, Tang Capital 
Management,  LLC  and  Kevin  Tang  (collectively,  “Tang”)  submitted  an  advisory  stockholder  proposal  for  consideration  at  our  2021  annual  meeting  of 
stockholders to commence a process to sell Aptevo to the highest bidder. Activist campaigns that contest or conflict with our strategic direction or seek 
changes in the composition of our board of directors or management could have an adverse effect on our operating results and financial condition. A proxy 
contest  would  require  us  to  incur  significant  legal  and  advisory  fees,  proxy  solicitation  expenses  and  administrative  and  associated  costs  and  require 
significant time and attention by our board of directors and management, diverting their attention from the pursuit of our business strategy. Any perceived 
uncertainties as to our future direction and control, our ability to execute on our strategy, or changes to the composition of our board of directors or senior 
management team arising from a proxy contest could lead to the perception of a change in the direction of our business or instability which may result in
the  loss  of  potential  business  opportunities,  make  it  more  difficult  to  pursue  our  strategic  initiatives,  or  limit  our  ability  to  attract  and  retain  qualified
personnel and business partners, any of which could adversely affect our business and operating results. If individuals are ultimately elected to our board of 
directors  with  a  specific  agenda,  it  may  adversely  affect  our  ability  to  effectively  implement  our  business  strategy  and  create  additional  value  for  our 
stockholders. We may choose to initiate, or may become subject to, litigation as a result of a proxy contest or matters arising from the proxy contest, which 
would serve as a further distraction to our board of directors and management and would require us to incur 

26

 
significant additional costs. In addition, actions such as those described above could cause significant fluctuations in our stock price based upon temporary 
or speculative market perceptions or other factors that do not necessarily reflect the underlying fundamentals and prospects of our business.

Our  future  income  will  depend,  in  part,  on  the  ability  of  Medexus  to  successfully  further  develop,  market  and  commercialize  IXINITY,  resulting  in 
milestone payments and deferred payments to the Company by Medexus.

On February 28, 2020, we entered into a Purchase Agreement with Medexus, pursuant to which we sold all of the issued and outstanding limited 
liability company interests of Aptevo BioTherapeutics, a subsidiary of Aptevo that wholly owns the IXINITY and related Hemophilia B business. We are 
entitled  to  receive  future  potential  payments  to  the  extent  of  the  achievement  of  certain  regulatory  and  commercial  milestones  and  through  deferred 
payments based on net sales of IXINITY. Royalties were earned at the rate of 2% of net revenue through June 2022. As of June 30, 2022, the royalty rate 
on net revenue of IXINITY increased to 5%. We no longer control the development, marketing, and commercialization of IXINITY and are dependent on 
Medexus to successfully do so.  Although Medexus has agreed to use commercially reasonable efforts to commercialize IXINITY in the ordinary course of 
business  in  good  faith,  Medexus  may  not  commit  adequate  resources  to  the  further  development,  marketing,  and  commercialization  of  IXINITY,  may 
experience  financial  difficulties,  may  face  competition,  or  may  prioritize  other  products  or  initiatives.    Medexus’  ability  to  continue  to  successfully 
commercialize the IXINITY business may be affected, and we may experience potential impacts on our future deferred payments from Medexus due to the 
macroeconomic environment and ongoing COVID-19 pandemic. The failure of Medexus to successfully market and commercialize IXINITY, including 
because of factors outside of Medexus’ control, could result in lower than expected milestone or deferred payments to us and negatively impact our future 
financial and operating results.

Our operating results are unpredictable and may fluctuate.  

Our  operating  results  are  difficult  to  predict  and  will  likely  fluctuate  from  quarter  to  quarter  and  year  to  year,  as  a  result  of  a  variety  of  factors, 

including:

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•

•

•

the level and timing of any milestone or deferred payments with respect to sales of IXINITY by Medexus;

whether and to what extent future milestone payments are received under our Amendment to Royalty Purchase Agreement with HCR; 

the extent of any payments received from collaboration arrangements and development funding as well as the achievement of development 
and clinical milestones under collaboration and license agreements that we may enter into from time to time and that may vary significantly 
from quarter to quarter; and,

the timing, cost, and level of investment in our research and development and clinical activities as well as expenditures we will or may incur 
to acquire or develop additional technologies, products and product candidates.

Due  to  the  ongoing  COVID-19  pandemic  and  macroeconomic  environment,  we  may  experience  delays  in  opportunities  to  partner  our  product 
candidates, due to financial and other impacts on potential partners. Additionally, we may experience potential impacts on our future milestone or deferred 
payments from Medexus, which may impact Medexus’ ability to continue to successfully commercialize the IXINITY businesses. These and other factors 
may have a material adverse effect on our business, results of operations and financial condition. 

Our future cash flow will depend, in part, on the ability of Pfizer to successfully sell RUXIENCE and our receipt of milestone payments from HCR in 
connection therewith. If Pfizer is unable, or does not devote sufficient resources, to maintain or continue increasing sales of RUXIENCE, or if HCR 
does not comply with the Royalty Purchase Agreement, our results of operations will be adversely affected.

On  June  25,  2020,  we  announced  that  we  were  entitled  to  royalty  payments  from  Pfizer  related  to  sales  of  a  rituximab  biosimilar  product, 
RUXIENCE (Rituximab-pvvr), which was approved by the U.S. Food and Drug Administration in July 2019 and launched by Pfizer in the United States 
and Japan in early 2020, and the European Union in the third quarter of 2020. The payments from Pfizer relate to a Collaboration and License Agreement 
acquired by us as part of our spin-off from Emergent in 2016, which applies a fixed royalty rate of 2.5% on global net sales of RUXIENCE. The agreement 
was originally executed by Trubion Pharmaceuticals (which was subsequently acquired by Emergent) and Wyeth (a wholly-owned subsidiary of Pfizer). 

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On March 30, 2021, we entered into and closed a Royalty Purchase Agreement with HCR (Royalty Purchase Agreement) pursuant to which we sold 
to HCR the right to receive royalty payments made by Pfizer in respect of net sales of RUXIENCE. Under the terms of the Royalty Purchase Agreement, 
we  received  $35  million  at  closing  and  we  were  eligible  to  receive  additional  payments  in  aggregate  of  up  to  an  additional  $32.5  million  based  on  the 
achievement of sales milestones in 2021, 2022 and 2023. The Company received the 2021 milestone payments in the collective amount of $10 million on 
March 8, 2022. The proceeds from these milestone payments, net of transaction costs, were recorded as an additional liability related to the sale of royalties 
on the consolidated balance sheet as of March 31, 2022. In order to non-dilutively address a Nasdaq listing compliance matter, on June 7, 2022, we entered 
into  and  closed  an  amendment  to  the  Royalty  Purchase  Agreement  (the  Amendment  to  Royalty  Purchase  Agreement),  pursuant  to  which  we  agreed  to 
forego  our  right  to  receive  50%  of  incremental  RUXIENCE  royalty  revenue  after  HCR  received  aggregate  royalty  payments  totaling  190%  of  the 
Investment Amount plus Milestone Amounts to the extent paid by HCR. We received 2022 milestone payment of $2.5 million on February 28, 2023. The 
proceed from 2022 milestone payment was recorded as other income in the consolidated statement of operations for the year ended December 31, 2022. 
The  Amendment  to  Royalty  Purchase  Agreement  continues  to  include  the  opportunity  receive  additional  milestone  payment  of  $10  million  based  on 
achievement of sales milestones in 2023.

We  have  no  control  over  the  sales  of  RUXIENCE  and  are  therefore  dependent  on  the  efforts  and  ability  of  Pfizer  to  generate  net  sales  of 
RUXIENCE sufficient for us to receive Milestone Payments under the Royalty Purchase Agreement.  The failure of Pfizer to successfully generate such net 
sales could negatively impact our future financial and operating results and our results of operations could therefore be adversely affected. Additionally, 
even  if  Pfizer  is  able  to  generate  net  sales  of  RUXIENCE  sufficient  for  us  to  receive  such  milestone  payments,  if  HCR  breaches  the  Royalty  Purchase 
Agreement (for example, by not making required payments when due, or at all), disputes or litigation may arise. Such disputes or litigation could be time-
consuming and expensive and could adversely affect our business.

We  face  product  liability  exposure,  which  could  cause  us  to  incur  substantial  liabilities  and  negatively  affect  our  business,  financial  condition,  and 
results of operations. 

The nature of our business exposes us to potential liability inherent in pharmaceutical products, including with respect to the testing of our product 
candidates in clinical trials and any product candidates that we successfully develop. Product liability claims might be made by patients in clinical trials, 
consumers, health care providers or pharmaceutical companies or others that sell any products that we successfully develop. These claims may be made 
even  with  respect  to  those  products  that  are  manufactured  in  licensed  and  regulated  facilities  or  otherwise  receive  regulatory  approval  for  study  or 
commercial sale. We cannot predict the frequency, outcome or cost to defend any such claims. 

If we cannot successfully defend ourselves against future claims that our product candidates caused injuries, we may incur substantial liabilities. 

Regardless of merit or eventual outcome, product liability claims may result in: 

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adverse publicity and/or injury to our reputation; 

withdrawal of clinical trial participants; 

costs to defend the related litigation; 

substantial monetary awards to trial participants or patients; 

decreased demand or withdrawal of an approved product; 

loss of revenue; and 

an inability to commercialize products that we may develop. 

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The amount of insurance that we currently hold may not be adequate to cover all liabilities that may occur. Further product liability insurance may 
be difficult and expensive to obtain. We may not be able to maintain insurance coverage at a reasonable cost and we may not be able to obtain insurance 
coverage that will be adequate to satisfy all potential liabilities. Claims or losses in excess of our product liability insurance coverage could have a material 
adverse effect on our business, financial condition, and results of operations. The cost of defending any product liability litigation or other proceeding, even 
if resolved in our favor, could be substantial. Uncertainties resulting from the initiation and continuation of product liability litigation or other proceedings 
could have a material adverse effect on our ability to compete in the marketplace. Product liability claims, regardless of merit or eventual outcome, may 
absorb  significant  management  time  and  result  in  reputational  harm,  potential  loss  of  revenue  from  decreased  demand  for  any  product  candidates  we 
successfully develop, withdrawal of clinical trial participants and potential termination of clinical trial sites or entire clinical programs, and could cause our 
stock price to fall. 

Our success is dependent on our continued ability to attract, motivate and retain key personnel, and any failure to attract or retain key personnel may 
negatively affect our business. 

Because of the specialized scientific nature of our business, our ability to develop products and to compete with our current and future competitors 
largely depends upon our ability to attract, retain and motivate highly qualified managerial and key scientific and technical personnel. If we are unable to 
retain  the  services  of  one  or  more  of  the  principal  members  of  senior  management,  including  our  Chief  Executive  Officer,  Marvin  L.  White,  our  Chief 
Operating Officer, Jeffrey G. Lamothe, our Chief Financial Officer, Daphne Taylor, our General Counsel, SoYoung Kwon, or other key employees, our 
ability  to  implement  our  business  strategy  could  be  materially  harmed.  We  face  intense  competition  for  qualified  employees  from  biotechnology  and 
pharmaceutical  companies,  research  organizations  and  academic  institutions.  Moreover,  we  have  experienced  increased  levels  of  attrition.  Attracting, 
retaining  or  replacing  these  personnel  on  acceptable  terms  may  be  difficult  and  time-consuming  given  the  high  demand  in  our  industry  for  similar 
personnel.  We  believe  part  of  being  able  to  attract,  motivate  and  retain  personnel  is  our  ability  to  offer  a  competitive  compensation  package,  including 
equity incentive awards. If we cannot offer a competitive compensation package or otherwise attract and retain the qualified personnel necessary for the 
continued development of our business, we may not be able to maintain our operations or grow our business. 

The ongoing COVID-19 pandemic, including the identification of new variants of the COVID-19 virus, could adversely impact our business, including 
our clinical trials.

The COVID-19 pandemic has caused severe global economic and societal disruptions and uncertainties, and we have experienced disruptions that 
have  impacted  our  business  and  clinical  trials.  Although  nearly  all  of  the  restrictions  placed  to  reduce  the  spread  of  COVID-19  have  been  lifted  and 
COVID-19  vaccines  are  available,  we  may  continue  to  experience  disruptions  in  the  future,  or  additional  disruptions  that  could  severely  impact  our 
business, such as delays or difficulties to the financing environment and raising capital due to economic uncertainty or volatility; supply constraints; delays 
in opportunities to partner our product candidates, due to financial and other impacts on potential partners; diversion of healthcare resources away from the 
conduct  of  clinical  trials;  potential  impacts  on  our  future  deferred  payments  and  milestones  from  Medexus  due  to  the  environment  which  may  impact 
Medexus’  ability  to  continue  to  successfully  commercialize  the  IXINITY  business  or  Pfizer  to  successfully  commercialize  RUXIENCE;  and  negative 
impacts on suppliers and licensees.

The extent to which the direct and indirect effects of the ongoing COVID-19 pandemic may impact our business and clinical trials will depend on 
future developments, which are highly uncertain and cannot be predicted with confidence.  For example, new variants may emerge and may result in the 
need  to  delay  initiation  of  trial  sites,  suspend  enrollment  into  studies,  patient  withdrawals,  postponement  of  preclinical  studies,  study  modification, 
suspension, or termination, the introduction of remote study procedures and modified informed consent procedures, study site changes, direct delivery of 
investigational  products  to  patient  homes  requiring  state  licensing,  study  deviations  or  noncompliance,  and  changes  or  delays  in  site  monitoring.    The 
foregoing  may  also  impact  the  integrity  of  our  study  data.  The  pandemic  could  further  impact  our  ability  to  interact  with  the  FDA  or  other  regulatory 
authorities, and may result in delays in the conduct of inspections or review of pending submissions. 

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The  ongoing  COVID-19  pandemic  may  further  impact  our  suppliers  and  manufacturers.    If  any  of  our  suppliers  cannot  obtain  the  necessary 
supplies, or if such third parties need to prioritize other products or customers over us, we may experience delays or disruptions in our supply chain, which 
could have a material and adverse impact on our business and development plans. Third party manufacturers may also need to implement measures and 
changes, or deviate from typical requirements, pandemic that may otherwise adversely impact our supply chains or the quality of the resulting products or 
supplies.

The ongoing COVID-19 pandemic may result in changes in laws, policies, and regulations.  By example, due to the potential impact of the COVID-
19 pandemic FDA issued guidance several times concerning how sponsors and investigators may address these challenges.  FDA’s guidance is continually 
evolving.  This and any future changes in law may require that we change our internal processes and procedures to ensure continued compliance.

The terms of our credit agreement may restrict the operation of our business and limit the cash available for investment in our business operations.

In  August  2020,  we  entered  into  a  Credit  and  Security  Agreement  (the  Credit  Agreement),  by  and  among  us  and  certain  of  our  subsidiaries  as 
borrowers, MidCap Financial, as agent, and the lenders from time-to-time party thereto. The terms of the Credit Agreement and borrowings we may make 
under the Credit Agreement in the future, could have significant adverse consequences for our business, including:

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requiring us to dedicate a substantial portion of any cash flow from operations to payment on our debt, which would reduce the amounts 
available to fund other corporate initiatives;

increasing the amount of interest that we have to pay on borrowings under the Credit Agreement if market rates of interest increase;

requiring compliance with restrictive covenants restricting, among other things, certain indebtedness, liens, dividends and other distributions, 
repayment  of  subordinated  indebtedness,  mergers,  dispositions,  investments,  acquisitions,  transactions  with  affiliates  and  modification  of 
organizational documents or certain other agreements, subject to certain exceptions;

requiring compliance with affirmative covenants including payment and reporting covenants; and

placing  us  at  a  competitive  disadvantage  compared  to  our  competitors  that  have  less  debt,  better  debt  servicing  options  or  stronger  debt 
servicing capacity.

We may not have sufficient funds or be able to obtain additional financing to pay the amounts due under the Credit Agreement. In addition, failure 
to comply with the covenants under the Credit Agreement, including those outside of our control, could result in an event of default. An event of default 
could result in the acceleration of amounts due under the Credit Agreement, and we may not be able to obtain additional financing to make any accelerated 
payments. Under these circumstances, our lenders could seek to enforce security interests in our assets securing our indebtedness, including our intellectual 
property.

We  completed  a  Section  382  study  and  have  concluded  that  we  experienced  an  “ownership  change”  as  defined  in  Section  382  of  the  U.S.  Internal 
Revenue Code of 1986, as amended (the Code), and thus the tax benefits of our pre-“ownership change” net operating loss carryforwards and certain 
other tax attributes will be subject to an annual limitation under Sections 382 and 383 of the Code.  

In  general,  a  corporation  undergoes  an  “ownership  change”  under  Section  382  of  the  Code  if,  among  other  things,  the  stockholders  who  own, 
directly or indirectly, 5% or more of the corporation’s stock (by value), or are otherwise treated as “5% stockholders” under Section 382 of the Code and 
the  Treasury  regulations  promulgated  thereunder,  increase  their  aggregate  percentage  ownership  (by  value)  of  the  corporation’s  stock  by  more  than  50 
percentage points over the lowest percentage of stock owned by the 5% stockholders at any time during the applicable testing period, which is generally the 
rolling  three-year  period  preceding  the  date  of  the  potential  ownership  change  testing  event.  Such  potential  ownership  change  testing  events  include 
changes  involving  a  stockholder  becoming  a  5%  stockholder  or  arising  from  a  new  issuance  of  capital  stock  or  share  repurchases  by  the  corporation, 
subject to certain exceptions.

In  the  event  of  an  “ownership  change,”  Sections  382  and  383  of  the  Code  impose  an  annual  limitation  on  the  amount  of  taxable  income  a 

corporation may offset with pre-change net operating loss carryforwards and certain other 

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tax attributes. The annual limitation is generally equal to the value of the outstanding stock of the corporation immediately before the ownership change 
(excluding certain capital contributions), multiplied by the long-term tax-exempt rate as published by the IRS for the month in which the ownership change 
occurs (the long-term tax-exempt rate for November 2020 is 0.89%). Any unused annual limitation may generally be carried over to subsequent years until 
the pre-ownership change net operating loss carryforwards and certain other tax attributes expire or are fully utilized by the corporation. Similar provisions 
of state tax law may also apply to limit the use of state net operating loss carryforwards and certain other tax attributes.

Additionally, Section 382 of the Code includes special rules that apply to a corporation with a significant amount of net unrealized built-in gains or 
net  unrealized  built-in  losses  in  its  assets  immediately  prior  to  ownership  change  under  Section  382  of  the  Code.  In  general,  certain  built-in  gains 
recognized during the five-year period beginning on the date of the ownership change increases the corporation’s annual limitation under Sections 382 and 
383 of the Code in the taxable year that such built-in gains are recognized or deemed recognized (but only up to the amount of the net unrealized built-in 
gain), while certain built-in losses recognized during such five-year period are subject to the annual limitation under Section 382 of the Code (but only up 
to the amount of the net unrealized built-in loss). 

As  of  December  31,  2022,  we  had  approximately  $156.2  million  and  $71.1  million  of  federal  and  state  net  operating  loss  carryforwards, 
respectively, available to reduce future taxable income that will begin to expire in 2037 for federal income tax purposes. We completed an IRC Section 382 
study through December 31, 2021. The study concluded that we have experienced an ownership change in November of 2020 and December of 2020 and 
$162.6 of our NOL carry forwards are subject to an annual limitation. It is not expected that the annual limitations will result in the expiration of NOL 
carryforwards prior to utilization assuming sufficient income.  

We cannot predict or control the occurrence or timing of another ownership change under Section 382 of the Code in the future. In addition, it is 
possible that any offering of securities by us could result in an ownership change. If another ownership change were to occur, future limitations could apply 
to our net operating losses and certain other tax attributes, which could result in a material amount of our net operating loss carryforwards and certain other 
tax attributes becoming unavailable to offset future income tax liabilities.

The realization of all or a portion of our deferred income tax assets (including net operating loss carryforwards) is dependent upon the generation of 
future  income  during  the  statutory  carryforward  periods.  Our  inability  to  utilize  our  limited  pre-ownership  change  net  operating  loss  carryforwards  and 
certain other tax attributes, or the occurrence of a future ownership change and resulting additional limitations to these tax attributes, could have a material 
adverse effect on our financial condition, results of operations and cash flows.

The change to the deductibility of our research and development expenditures enacted under the Tax Cuts and Jobs Act (TCJA) could increase the 
amount of taxes to which we are subject and our effective tax rate. 

Beginning in 2022, the TCJA eliminates the option to deduct research and development expenditures currently and requires taxpayers to capitalize 
and amortize these expenditures over five or fifteen years depending on the type of research and development expenditure pursuant to Section 174 of the 
Code. Such change to the deductibility of our research and development expenditures could increase the amount of taxes to which we are subject and our 
effective tax rate.

Our  investments  are  subject  to  market  and  credit  risks  that  could  diminish  their  value  and  these  risks  could  be  greater  during  periods  of  extreme 
volatility  or  disruption  in  the  financial  and  credit  markets,  which  could  adversely  impact  our  business,  financial  condition,  results  of  operations, 
liquidity and cash flows. 

Our investments are subject to risks of credit defaults and changes in market values. Periods of macroeconomic weakness or recession, heightened 
volatility or disruption in the financial and credit markets, such as the current macroeconomic environment, increase these risks, potentially resulting in 
other-than-temporary  impairment  of  assets  in  our  investment  portfolio.  The  impact  of  geopolitical  tension,  such  as  a  deterioration  in  the  bilateral 
relationship between the US and China or Russia’s invasion of Ukraine, including any additional sanctions, export controls or other restrictive actions that 
may be imposed by the United States and/or other countries against governmental or other entities in, for example, Russia, also could lead to disruption, 
instability and volatility in the global markets, which may have an impact on our investments across negatively impacted sectors or geographies. 

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Product Development Risks 

The results of our current and planned preclinical studies and clinical trials may not satisfy the requirements of the FDA or non-U.S. regulatory 
authorities.  Results from early preclinical studies and clinical trials may not be predictive of results from later-stage or other trials and interim or top 
line data may be subject to change or qualification based on the complete analysis of data. 

We are conducting our Phase 1b clinical trial with APVO436 and first-in-human Phase 1 clinical study of ALG.APV-527. None of our other product 
candidates have entered clinical development. Clinical failure can occur at any stage of preclinical or clinical development. Preclinical studies and clinical 
trials may produce inconsistent, negative or inconclusive results. The FDA or a non-US regulatory authority may require us to conduct additional clinical 
or preclinical testing. Success in early preliminary data, preclinical studies and clinical trials does not mean that future larger registration clinical trials will 
be  successful  and  interim  results  of  a  clinical  trial  do  not  necessarily  predict  final  results.  Product  candidates  in  later-stage  clinical  trials  may  fail  to 
demonstrate  sufficient  safety  and  efficacy  to  the  satisfaction  of  the  FDA  and  non-U.S.  regulatory  authorities  despite  having  progressed  through  initial 
clinical  trials.  In  some  instances,  there  can  be  significant  variability  in  safety  or  efficacy  results  between  different  clinical  trials  of  the  same  product 
candidate due to numerous factors, including changes in trial procedures set forth in protocols, differences in the size and type of the patient populations, 
changes in adherence to the dosing regimen and other clinical trial protocols and the rate of dropout among clinical trial participants. In addition, preclinical 
and clinical data are often susceptible to various interpretations and analyses, and many companies whose product candidates performed satisfactorily in 
preclinical studies and clinical trials have nonetheless failed to obtain marketing approval. Product candidates in later stages of clinical trials may fail to 
show the desired safety and efficacy profile despite having progressed through preclinical studies and initial clinical trials. A number of companies in the 
pharmaceutical  and  biopharmaceutical  industry  have  suffered  significant  setbacks  in  advanced  clinical  trials  due  to  lack  of  efficacy  or  adverse  safety 
profiles, notwithstanding promising results in earlier studies, and we cannot be certain that we will not face similar setbacks. Even if early-stage clinical 
trials  are  promising,  we  may  need  to  conduct  additional  clinical  trials  of  our  product  candidates  in  additional  patient  populations  or  under  different 
treatment  conditions  before  we  are  able  to  seek  approvals  from  the  FDA  and  regulatory  authorities  outside  the  United  States  to  market  and  sell  these 
product candidates. Any of these events could limit the commercial potential of our product candidates and have a material adverse effect on our business, 
prospects, financial condition and results of operations. A number of companies in the pharmaceutical industry, including those with greater resources and 
experience than us, have suffered significant setbacks in advanced clinical trials, even after obtaining promising results in earlier clinical trials.

In addition, our APVO436 clinical trial is an open-label study and is conducted at a limited number of clinical sites on a limited number of patients.  
An “open-label” clinical trial is one where both the patient and investigator know whether the patient is receiving the investigational product candidate or 
an existing approved drug.  Most typically, open-label clinical trials test only the investigational product candidate and sometimes may do so at different 
dose levels or in combination with other drugs. Open-label clinical trials are subject to various limitations that may exaggerate any therapeutic effect as 
patients in open-label clinical trials are aware when they are receiving treatment. Open-label clinical trials may be subject to a “patient bias” where patients 
perceive their symptoms to have improved merely due to their awareness of receiving an experimental treatment. In addition, open-label clinical trials may 
be subject to an “investigator bias” where those assessing and reviewing the physiological outcomes of the clinical trials are aware of which patients have 
received treatment and may interpret the information of the treated group more favorably given this knowledge. The results from these clinical trials may 
not  be  predictive  of  future  clinical  trial  results  with  APVO436  or  other  product  candidates.  In  addition,  although  the  FDA  issued  a  “may  proceed” 
notification  which  allowed  us  and  Alligator  to  initiate  our  Phase  1  clinical  trial  of  ALG.APV-527,  we  cannot  guarantee  that  this  trial  or  future  trials  of 
ALG.APV-527 will show the desired safety and efficacy.

We may publicly disclose top line or interim data from time to time, which is based on a preliminary analysis of then-available data, and the results 
and related findings and conclusions are subject to change following a more comprehensive review of the data related to the particular study or trial. The 
top line or interim results that we report may differ from future results of the same studies, or different conclusions or considerations may qualify such 
results once additional data have been received and fully evaluated. For example, we released preliminary data regarding our APVO436 Phase 1b clinical
trial study which may change or be inconsistent with future results.  Even in situations where a clinical stage candidate appears to be benefiting a patient, 
that benefit may not be of a permanent nature. Top line and interim data also remain subject to audit and verification procedures, that may result in the final 
data being materially different from the preliminary data we previously published. In addition, the achievement of one primary 

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endpoint for a trial does not guarantee that additional co-primary endpoints or secondary endpoints will be achieved. Further, others, including regulatory 
agencies, may not accept or agree with our assumptions, estimates, calculations, conclusions or analyses or may interpret or weigh the importance of data 
differently, which could impact the value of the particular program, the approvability or commercialization of the particular product candidate or product 
and our company in general. In addition, the information we choose to publicly disclose regarding a particular study or clinical trial is based on what is 
typically extensive information, and you or others may not agree with what we determine is material or otherwise appropriate information to include in our 
disclosure. 

Our future clinical trials may not be successful. Moreover, should there be a flaw in a clinical trial, it may not become apparent until the clinical trial 
is well advanced. We may also experience numerous unforeseen events during, or as a result of, clinical trials that could delay or prevent our ability to 
receive marketing approval or commercialize our product candidates, including:

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regulators or Institutional Review Boards (IRBs) may not authorize us or our investigators to commence or continue a clinical trial, conduct a 
clinical trial at a prospective trial site, or amend trial protocols, or regulators or IRBs may require that we modify or amend our clinical trial 
protocols;

we  may  experience  delays  in  reaching,  or  fail  to  reach,  agreement  on  acceptable  clinical  trial  contracts  or  clinical  trial  protocols  with 
prospective trial sites and our contract research organizations (CROs);

regulators may require us to perform additional or unanticipated clinical trials to obtain approval or we may be subject to additional post-
marketing testing, surveillance, or Risk Evaluation and Mitigation Strategy (REMS) requirements to maintain regulatory approval;

clinical trials of our product candidates may produce negative or inconclusive results, or our studies may fail to reach the necessary level of 
statistical significance;

changes in marketing approval policies, laws, regulations, or the regulatory review process during the development period rendering our data 
insufficient to obtain marketing approval;

the cost of clinical trials of our product candidates may be greater than we anticipate or we may have insufficient funds for a clinical trial or 
to pay the substantial user fees required by the FDA upon the filing of a marketing application;

the  supply  or  quality  of  our  product  candidates  or  other  materials  necessary  to  conduct  clinical  trials  of  our  product  candidates  may  be 
insufficient or inadequate;

we may fail to reach an agreement with regulators or IRBs regarding the scope, design, or implementation of our clinical trials;

we may have delays in adding new investigators or clinical trial sites, or we may experience a withdrawal of clinical trial sites;

there may be regulatory questions or disagreements regarding interpretations of data and results, or new information may emerge regarding 
our product candidates;

the FDA or comparable foreign regulatory authorities may disagree with our study design, including endpoints, or our interpretation of data 
from non-clinical studies and clinical trials or find that a product candidate’s benefits do not outweigh its safety risks;

the FDA or comparable foreign regulatory authorities may not accept data from studies with clinical trial sites in foreign countries;

the FDA or comparable regulatory authorities may disagree with our intended indications;

the FDA or comparable foreign regulatory authorities may fail to approve or subsequently find fault with the manufacturing processes or our 
contract manufacturer’s manufacturing facility for clinical and future commercial supplies; and

we  may  not  be  able  to  demonstrate  that  a  product  candidate  provides  an  advantage  over  current  standards  of  care  or  current  or  future 
competitive therapies in development.

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Further,  our  product  candidates  may  not  be  approved  even  if  they  achieve  their  primary  endpoints  in  Phase  3  clinical  trials  or  registration  trials. 
Regardless of any advisory committee recommendation, the FDA may decline to approve the BLA for a number of reasons including, if the clinical benefit, 
safety profile or effectiveness of the drug is not deemed by the FDA to warrant approval. The FDA or other non-U.S. regulatory authorities may disagree 
with  our  trial  design,  and  our  interpretation  of  data  from  non-clinical  studies  and  clinical  trials.  In  particular,  the  FDA  may  not  view  our  data  as  being 
clinically  meaningful  or  statistically  persuasive.  The  regulatory  authorities  and  policies  governing  the  development  of  our  product  candidates  may  also 
change at any time. In addition, any of these regulatory authorities may change requirements for the approval of a product candidate even after reviewing 
and  providing  comments  or  advice  on  a  protocol  for  a  pivotal  Phase  3  clinical  trial.  Any  of  these  regulatory  authorities  may  also  approve  a  product 
candidate  for  fewer  or  more  limited  indications  than  we  request  or  may  grant  approval  contingent  on  the  performance  of  costly  post-marketing  clinical 
trials.  The  FDA  or  other  non-U.S.  regulatory  authorities  may  not  approve  the  labeling  claims  that  we  believe  would  be  necessary  or  desirable  for  the 
successful commercialization of our product candidates.

We may not be able to file INDs or IND amendments to commence additional clinical trials on the timelines we expect, and even if we are able to, the 
FDA may not permit us to proceed.

We submitted an IND for ALG.APV-527 to the FDA in the second half of 2022 for which we received a “may proceed” notification from the FDA. 
However, we may not be able to file future INDs for our product candidates on the timelines we expect. For example, we may experience manufacturing 
delays or other delays with IND-enabling studies. Moreover, we cannot be sure that submission of future INDs will result in the FDA allowing clinical 
trials to begin, or that, once begun, issues will not arise that suspend or terminate clinical trials. Additionally, even if such regulatory authorities agree with 
the  design  and  implementation  of  the  clinical  trials  set  forth  in  an  IND,  we  cannot  guarantee  that  such  regulatory  authorities  will  not  change  their 
requirements in the future. These considerations also apply to new clinical trials we may submit as amendments to existing INDs or to a new IND. Any 
failure  to  file  INDs  on  the  timelines  we  expect  or  to  obtain  regulatory  approvals  for  our  trials  may  prevent  us  from  completing  our  clinical  trials  or 
commercializing our products on a timely basis, if at all.

If we experience delays or difficulties in the commencement, site initiation, enrollment of patients or completion of our clinical trials, the time to reach 
critical trial data and receipt of any necessary regulatory approvals could be delayed.

We may not be able to initiate or continue clinical trials for our product candidates if we are unable to locate, enroll and maintain a sufficient number 
of eligible patients to participate in these trials as required by the FDA or similar regulatory authorities outside the United States. In addition, some of our 
competitors have ongoing clinical trials for product candidates that treat the same indications as our product candidates, and patients who would otherwise 
be eligible for our clinical trials may instead enroll in clinical trials of our competitors’ product candidates. Furthermore, APVO436 has received orphan 
drug designation for acute myelogenous leukemia and thus has a relatively small patient population. Also, the eligibility criteria of our clinical trials may 
further limit the pool of available study participants as we require that patients have specific characteristics that we can measure to assure their disease is 
either severe enough or not too advanced to include them in a study. In addition, the global spread of the COVID-19 pandemic makes it more difficult to 
initiate clinical trials and enroll patients and the process of finding and diagnosing eligible patients under these conditions may prove costly.

Patient enrollment is affected by other factors including:

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the severity of the disease under investigation; 

the design of the clinical trial, including the patient eligibility criteria for the study in question; 

the perceived risks and benefits of the product candidate under study; 

our payments for conducting clinical trials; 

the patient referral practices of physicians; 

our ability to recruit clinical trial investigators with the appropriate competencies and experiences;

our ability to obtain and maintain patient consents;

the ability to monitor patients adequately during and after treatment;

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reporting of preliminary results of any of our clinical trial sites;

the proximity and availability of clinical trial sites for prospective patients; and

factors we may not be able to control that may limit patients, principal investigators or staff or clinical site availability, such as the ongoing 
COVID-19 pandemic.

Our inability to enroll a sufficient number of patients for clinical trials could result in significant delays and could require us to abandon one or more 
clinical trials altogether. Site initiation and enrollment delays in our clinical trials may result in increased development costs for our product candidates, 
delays in the availability of preliminary or final results, and delays to commercially launching our product candidates, if approved, which may cause the 
value of our company to decline and limit our ability to obtain additional financing.

Serious adverse events, undesirable side effects or other unexpected properties of our product candidates may be identified that could delay, prevent, or
cause  the  withdrawal  of  regulatory  approval,  limit  the  commercial  potential,  or  result  in  significant  negative  consequences  following  marketing
approval.

Serious adverse events or undesirable side effects caused by, or other unexpected properties of any of our product candidates, either when used alone 
or  in  combination  with  other  approved  or  investigational  therapies,  could  cause  us  or  regulatory  authorities  to  interrupt,  delay  or  halt  our  development 
activities  and  manufacturing  and  distribution  operations  and  could  result  in  a  more  restrictive  label,  the  imposition  of  a  clinical  hold,  suspension, 
distribution or use restrictions or the delay or denial of regulatory approval by the FDA or comparable foreign regulatory authorities. If any of our product 
candidates  are  associated  with  serious  adverse  events  or  undesirable  side  effects  or  have  properties  that  are  unexpected,  we  may  need  to  abandon  their 
development or limit development to certain uses or subpopulations in which the undesirable side effects or other characteristics are less prevalent, less 
severe or more acceptable from a risk-benefit perspective. Many compounds that initially showed promise in clinical or earlier stage testing have later been 
found to cause undesirable or unexpected side effects that prevented further development of the compound. 

As  we  continue  developing  our  product  candidates  and  conduct  clinical  trials  of  our  product  candidates,  serious  adverse  events,  or  SAEs, 
undesirable  side  effects,  relapse  of  disease  or  unexpected  characteristics  may  emerge  causing  us  to  abandon  these  product  candidates  or  limit  their 
development to more narrow uses or subpopulations in which the SAEs or undesirable side effects or other characteristics are less prevalent, less severe or 
more acceptable from a risk-benefit perspective or in which efficacy is more pronounced or durable. Undesirable side effects, or other unexpected adverse 
events or properties of any of our product candidates, could arise or become known either during clinical development or, if approved, after the approved 
product has been marketed. If such an event occurs during development, the FDA or comparable foreign regulatory authorities could suspend or terminate a 
clinical  trial  or  deny  approval  of  our  product  candidates.  Furthermore,  we  are  currently  and  may  in  the  future  evaluate  our  product  candidates  in 
combination with approved and/or experimental therapies. These combinations may have additional or more severe side effects than caused by our product 
candidate as monotherapies. The uncertainty resulting from the use of our product candidate in combination with other therapies may make it difficult to 
accurately  predict  side  effects  or  efficacy  in  potential  future  clinical  trials.  If  our  product  candidates  receive  marketing  approval  and  we  or  others  later 
identify undesirable side effects caused by such products, a number of potentially significant negative consequences may result, including: 

•

•

•

•

•

regulatory authorities may require us to conduct additional clinical trials or abandon our research efforts for our other product candidates;

regulatory authorities may require additional warnings on the label or impose distribution or use restrictions; 

regulatory authorities may require one or more post-market studies; 

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

regulatory  authorities  may  require  implementation  of  a  REMS,  Field  Safety  Corrective  Actions  or  equivalent,  which  may  include  safety 
surveillance,  restricted  distribution  and  use,  patient  education,  enhanced  labeling,  special  packaging  or  labeling,  expedited  reporting  of 
certain adverse events, preapproval of promotional materials and restrictions on direct-to-consumer advertising; 

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•

•

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

our reputation may suffer. 

Any of these events could prevent us from achieving or maintaining market approval and acceptance of the affected product candidate, or could 
substantially increase commercialization costs and expenses, which could delay or prevent us from generating revenue from the sale of our products and 
materially harm our business and results of operations. 

We depend on third parties to conduct our clinical and non-clinical trials. If these third parties do not effectively carry out their contractual duties, 
comply with regulatory requirements or meet expected deadlines, we may not be able to obtain regulatory approval for or commercialize our product 
candidates and our business could be substantially harmed. 

We  do  not  have  the  ability  to  independently  conduct  the  clinical  and  preclinical  trials  required  to  obtain  regulatory  approval  for  our  product 
candidates. We depend on third parties, such as independent clinical investigators, research sites, contract research organizations, or CROs, and other third-
party service providers to conduct the clinical and preclinical trials of our product candidates, and we expect to continue to do so. For example, Dr. Dirk 
Huebner,  Chief  Medical  Officer,  is  providing  clinical  trial  and  medical  affairs  oversight  duties  as  an  independent  consultant.  We  rely  heavily  on  Dr. 
Huebner and these other third parties for successful execution and oversight of our clinical and non-clinical trials, but we do not exercise day to day control 
over their activities. 

While  we  have  agreements  governing  the  activities  of  third  parties,  we  have  limited  influence  and  control  over  their  actual  performance  and 
activities. For instance, our third-party service providers are not our employees, and except for remedies available to us under our agreements with such 
third parties we cannot control whether or not they devote sufficient time and resources to our ongoing clinical, and non-clinical programs. Our third-party 
service providers may also have relationships with other entities, some of which may be our competitors, for whom they may also be conducting trials or 
other  therapeutic  development  activities  that  could  harm  our  competitive  position.    If  these  third  parties  do  not  successfully  carry  out  their  contractual 
duties, meet expected deadlines or conduct our non-clinical studies or clinical trials in accordance with regulatory requirements or our stated protocols, if 
they  need  to  be  replaced  or  if  the  quality  or  accuracy  of  the  data  they  obtain  is  compromised  due  to  the  failure  to  adhere  to  our  protocols,  regulatory 
requirements  or  for  other  reasons,  our  trials  may  be  repeated,  extended,  delayed,  or  terminated,  we  may  not  be  able  to  obtain,  or  may  be  delayed  in 
obtaining,  marketing  approvals  for  our  product  candidates,  we  may  not  be  able  to,  or  may  be  delayed  in  our  efforts  to,  successfully  commercialize  our 
product candidates, or we or they may be subject to regulatory enforcement actions. 

Our reliance on third-party service providers does not relieve us of our regulatory responsibilities, including ensuring that our trials are conducted in 
accordance  with  the  FDA-approved  good  clinical  practices,  or  GCPs,  and  the  plans  and  protocols  contained  in  the  relevant  regulatory  application.  In 
addition,  these  organizations  and  individuals  may  not  complete  these  activities  on  our  anticipated  or  desired  timeframe.  We  also  may  experience 
unexpected cost increases that are beyond our control. Problems with the timeliness or quality of the work of a contract research organization may lead us 
to seek to terminate the relationship and use an alternative service provider, which may prove difficult and/or costly and result in a delay of our trials. In 
addition, business disruptions arising from circumstances out of our control, such as the ongoing COVID-19 pandemic could negatively affect the ability of 
some  of  the  independent  clinical  investigators,  contract  research  organizations  and  other  third-party  service  providers  that  conduct  our  clinical  and 
preclinical  trials  of  our  product  candidates.  Any  delay  in  or  inability  to  complete  our  trials  could  delay  or  prevent  the  development,  approval,  and 
commercialization of our product candidates. 

If CROs or other third parties assisting us or our study sites fail to comply with applicable GCPs, the clinical data generated in our clinical trials may 
be  deemed  unreliable  and  the  FDA  or  its  non-U.S.  counterparts  may  require  us  to  perform  additional  clinical  trials  before  approving  our  marketing 
applications.  We  or  they  may  also  face  regulatory  enforcement  action.    We  cannot  assure  you  that,  upon  inspection,  the  FDA  or  non-U.S.  regulatory 
agencies will determine that any of our clinical trials comply with GCP. In addition, our clinical trials must be conducted with product produced under 
GMP  and  similar  regulations  outside  of  the  United  States.  Our  failure,  or  the  failure  of  our  product  candidate  manufacturers,  to  comply  with  these 
regulations may require us to repeat or redesign clinical trials, or conduct additional trials, which would increase our development costs and delay or impact 
the conduct of our preclinical studies, clinical trials, and the likelihood of regulatory approval. 

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If third parties do not carry out their duties under their agreements with us, if the quality or accuracy of the data they obtain is compromised due to 
the failure to adhere to our clinical protocols, including dosing requirements, or regulatory requirements, or if they otherwise fail to comply with clinical 
trial  protocols  or  meet  expected  deadlines,  our  clinical  trials  may  not  meet  regulatory  requirements.  If  our  clinical  trials  do  not  meet  regulatory 
requirements or if these third parties need to be replaced, our clinical trials may be extended, delayed, suspended or terminated. 

Agreements with third parties conducting or otherwise assisting with our clinical or non-clinical studies might terminate for a variety of reasons, 
including  a  failure  to  perform  by  the  third  parties.  If  any  of  our  relationships  with  these  third  parties  terminate,  we  may  not  be  able  to  enter  into 
arrangements with alternative providers or to do so on commercially reasonable terms. Switching or adding additional third parties involves additional cost 
and requires management time and focus. In addition, there is a natural transition period when a new third party commences work. As a result, if we need 
to enter into alternative arrangements, it could delay our product development activities and adversely affect our business. Though we carefully manage our 
relationships with our third parties, there can be no assurance that we will not encounter challenges or delays in the future or that these delays or challenges 
will not have a material adverse impact on our business, financial condition and prospects, and results of operations.

If any of these events occur, we may not be able to obtain regulatory approval of our product candidates or succeed in our efforts to create approved 
line extensions for certain of our existing products or generate additional useful clinical data in support of these products. Moreover, if we are unable to 
obtain any necessary third-party services on acceptable terms or if these service providers do not successfully carry out their contractual duties or meet 
expected deadlines, our efforts to obtain regulatory approvals for our product candidates may be delayed or prevented. 

Manufacture  of  our  product  candidates,  especially  in  large  quantities,  is  complex  and  time  consuming.  The  loss  of  any  of  our  third-party 
manufacturers,  or  delays  or  problems  in  the  manufacture  of  our  product  candidates,  could  result  in  product  shortages  and/or  delays  in  clinical 
development.

We do not have manufacturing capabilities and do not plan to develop such capacity in the foreseeable future. We depend on a limited number of 
third-party  suppliers  for  the  production  of  our  product  candidates.  Accordingly,  our  ability  to  develop  and  deliver  product  candidates  in  a  timely  and 
competitive manner and to enable us to conduct our development programs depends on our third-party manufacturers being able to continue to meet our 
ongoing  clinical  trial  needs  and  perform  their  contractual  obligations.  In  order  to  successfully  develop  and  commercialize  our  product  candidates  in  a 
timely manner, we and our third-party manufacturers must be able to develop and execute on manufacturing processes and reach agreement on contract 
terms.

Our  current  and  anticipated  future  dependence  upon  others  for  the  manufacture  of  our  product  candidates  or  any  product  that  we  develop  may 
adversely affect our future profit margins and our ability to commercialize any products that receive marketing approval on a timely and competitive basis. 
In addition, any performance failure on the part of our existing or future manufacturers could delay clinical development or marketing approval.

If  these  third-party  manufacturers  do  not  successfully  carry  out  their  contractual  duties,  meet  expected  deadlines  or  manufacture  our  product 
candidates  in  accordance  with  regulatory  requirements,  if  there  are  disagreements  between  us  and  such  parties,  or  if  such  parties  are  unable  to  expand 
capacities to support commercialization of any of our product candidates for which we obtain marketing approval, we may not be able to produce, or may 
be  delayed  in  producing  sufficient  product  candidates  to  meet  our  supply  requirements.  Any  delays  in  obtaining  adequate  supplies  with  respect  to  our 
product candidates and components may delay the development or commercialization of our product candidates.

We  may  not  succeed  in  our  efforts  to  establish  manufacturing  relationships  or  other  alternative  arrangements  for  any  of  our  product  candidates, 
components, and programs. Our product candidates may compete with other products and product candidates for access to manufacturing facilities. There 
are a limited number of manufacturers that operate under cGMP regulations and that are both capable of manufacturing for us and willing to do so. 

If our existing third-party manufacturers, or the third parties that we engage in the future to manufacture a product or component for commercial 
sale or for our clinical trials should cease to continue to do so for any reason, we likely would experience delays in obtaining sufficient quantities of our 
product candidates for us to meet commercial demand or to advance our clinical trials while we identify and qualify replacement suppliers. These third-
party facilities may also be affected by natural disasters, such as floods or fire, or such facilities could face manufacturing issues, such as contamination or 
regulatory  findings  following  a  regulatory  inspection  of  such  facility.  In  such  instances,  we  may  need  to  locate  an  appropriate  replacement  third-party 
relationship, which may not be readily 

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available or on acceptable terms, which would cause additional delay and increased expense. In some cases, the technical skills required to manufacture our 
products  or  product  candidates  may  be  unique  or  proprietary  to  the  original  manufacturer  and  we  may  have  difficulty,  or  there  may  be  contractual 
restrictions  prohibiting  us  from,  transferring  such  skills  to  an  alternate  supplier  in  a  timely  fashion  if  at  all.  The  addition  of  a  new  or  alternative 
manufacturer may also require FDA approvals and may have a material adverse effect on our business.

If for any reason we are unable to obtain adequate supplies of our product candidates or the components used to manufacture them, it will be more 
difficult for us to develop our product candidates and compete effectively. Further, even if we do establish such collaborations or arrangements, our third-
party manufacturers may breach, terminate, or not renew these agreements.

We or our third-party manufacturers may also encounter shortages in the raw materials or therapeutic substances necessary to produce our product 
candidates in the quantities needed for our clinical trials or, if our product candidates are approved, in sufficient quantities for commercialization or to meet 
an increase in demand. Such shortages may occur for a variety of reasons, including capacity constraints, delays or disruptions in the market, and shortages 
caused by the purchase of such materials by our competitors or others. We may also not be able to obtain such materials on favorable terms as a result of 
global  trade  policies.    Our  third-party  manufacturers’  failure  to  obtain  the  raw  materials,  therapeutic  substances,  or  active  pharmaceutical  ingredients 
necessary to manufacture sufficient quantities of our product candidates may have a material adverse effect on our business.

All  of  our  current  product  candidates  are  biologics.  Our  product  candidates  must  be  made  consistently  and  in  compliance  with  a  clearly  defined 
manufacturing process. Problems may arise during manufacturing for a variety of reasons, including problems with raw materials, equipment malfunction 
or  replacement  and  failure  to  follow  specific  protocols  and  procedures.  Slight  deviations  anywhere  in  the  manufacturing  process,  including  obtaining 
materials, maintaining master seed or cell banks and preventing genetic drift, seed or cell growth, fermentation and contamination including from, among 
other things, particulates, filtration, filling, labeling, packaging, storage and shipping, and quality control testing, may result in lot failures or manufacturing 
shut-down,  delays  in  the  release  of  lots,  product  recalls,  spoilage  or  regulatory  action.  Due  to  the  ongoing  COVID-19  pandemic,  our  third-party 
manufacturers may experience difficulties, such as supply shortages, that impact our product candidates and production timelines. 

Additionally,  our  development  and  commercialization  strategy  involves  entering  into  arrangements  with  corporate  and  academic  collaborators, 
contract research organizations, distributors, third-party manufacturers, licensors, licensees and others to conduct development work, manage or conduct 
our clinical trials, manufacture our product candidates and market and sell our products outside of the United States and maintain our existing arrangements 
with respect to the commercialization or manufacture of our products. We may not have the expertise or the resources to conduct all of these activities for 
all  products  and  product  candidates  on  our  own  and,  as  a  result,  are  particularly  dependent  on  third  parties  in  many  areas.  Any  current  or  future 
arrangements for development and commercialization may not be successful, as the amount and timing of resources that third parties devote to developing, 
manufacturing, and commercializing our products candidates are not within our control. If we are not able to establish or maintain agreements relating to 
our product candidates in development, our results of operations and prospects would be materially and adversely affected. 

Any  loss  of  a  third-party  manufacturer,  any  delays,  or  problems  in  the  manufacture  of  our  products,  or  termination  of  any  arrangements  for 
development and commercialization of our products could have a material adverse effect on our business, operations, results of operations and financial 
condition. We may be required to replace our manufacturer and if this were to occur, we may incur added costs and delays in identifying and qualifying any 
such replacements. We may also not be able to enter into such arrangements on favorable commercial terms.

Changes in product candidate manufacturing or formulation may result in additional costs or delay.

As product candidates are developed through preclinical studies to late-stage clinical trials toward approval and commercialization, it is common 
that various aspects of the development program, such as manufacturing methods, manufacturing sites, and formulation, are altered along the way in an 
effort to optimize processes and results. Any of these changes could cause our product candidates to perform differently and affect the results of planned 
clinical  trials  or  other  future  clinical  trials  conducted  with  the  altered  materials.  Such  changes  may  also  require  additional  testing,  clinical  trials,  FDA 
notification, or FDA approval. Any of the foregoing could limit our future revenues and growth.

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Failure of our third-party manufacturers to successfully manufacture material that conforms to our specifications and the FDA’s or foreign regulatory 
authorities’ strict regulatory requirements, may prevent regulatory approval of those manufacturing facilities. 

We  rely  on  third  parties  to  manufacture  all  clinical  trial  materials  for  our  product  candidates,  and  we  will  rely  on  third  parties  to  manufacture 
commercial supplies, if any such product candidates are ultimately approved for commercial sale. Manufacturers of our product candidates and therapeutic 
substances must comply with GMP requirements enforced by the FDA that are applicable to both finished products and their active components used both 
for  clinical  and  commercial  supply.  The  FDA  enforces  these  requirements  through  its  facilities  inspection  program.  Our  product  candidates,  including 
APVO436  and  ALG.APV-527,  will  not  be  approved  for  marketing  by  the  FDA  or  other  foreign  regulatory  authorities  unless  the  FDA  or  their  foreign 
equivalents  also  approve  the  facilities  used  by  our  third-party  manufacturers  to  produce  them  for  commercialization.  If  our  third-party  manufacturers 
cannot successfully manufacture material that conforms to our specifications and the FDA’s or foreign regulatory authorities’ strict regulatory requirements, 
the FDA or their foreign counterparts will not approve their manufacturing facilities, which would result in significant delays in obtaining FDA or foreign 
marketing approvals for our product candidates.   If this were to occur, we may also never receive marketing approval, we may need to repeat clinical trials, 
we  may  need  to  undertake  costly  corrective  actions,  including  product  recalls,  we  may  risk  harm  to  subjects  or  patients,  and  we  may  face  enforcement 
actions.  

While we are ultimately responsible for the manufacture of our product candidates, other than through our contractual arrangements, we have little 
control over our manufacturers’ compliance with these regulations and standards. If the FDA or a comparable foreign regulatory authority does not approve 
these  facilities  for  the  manufacture  of  our  product  candidates  or  if  it  withdraws  any  such  approval  in  the  future,  we  may  need  to  find  alternative 
manufacturing  facilities,  which  would  significantly  impact  our  ability  to  develop,  obtain  and  maintain  regulatory  approval  for  or  market  our  product 
candidates,  if  approved.  Additionally,  we  may  be  unable  to  contract  with  alternative  manufacturers  on  favorable  or  reasonable  terms.  Any  new 
manufacturers would need to either obtain or develop the necessary manufacturing know-how, and obtain the necessary equipment and materials, which 
may take substantial time and investment. In some cases, the technical skills required to manufacture our products or product candidates may be unique or 
proprietary to the original manufacturer and we may have difficulty, or there may be contractual restrictions prohibiting us from, transferring such skills to 
a back-up or alternate supplier, or we may be unable to transfer such skills at all. In addition, if we are required to change manufacturers for any reason, we 
will  be  required  to  verify  that  the  new  manufacturer  maintains  facilities  and  procedures  that  comply  with  quality  standards  and  with  all  applicable 
regulations.  We  will  also  need  to  verify,  such  as  through  a  manufacturing  comparability  study,  that  any  new  manufacturing  process  will  produce  our 
product  candidate  according  to  the  specifications  previously  submitted  to  the  FDA  or  any  other  regulatory  authority.  The  delays  associated  with  the 
verification of a new manufacturer could negatively affect our ability to develop product candidates or commercialize our products in a timely manner or 
within  budget.  Furthermore,  a  manufacturer  may  possess  technology  related  to  the  manufacture  of  our  product  candidate  that  such  manufacturer  owns 
independently. This would increase our reliance on such manufacturer or require us to obtain a license from such manufacturer in order to have another 
manufacturer  produce  our  product  candidates.  In  addition,  changes  in  manufacturers  often  involve  changes  in  manufacturing  procedures  and  processes, 
which could require that we conduct bridging studies between our prior clinical supply used in our clinical trials and that of any new manufacturer. We may 
be unsuccessful in demonstrating the comparability of clinical supplies which could require the conduct of additional clinical trials. We must also receive 
FDA approval for the use of any new manufacturers for commercial supply.

We and our third-party manufacturers may not be able to meet these manufacturing process requirements for any of our current product candidates, 
all of which have complex manufacturing processes, which make meeting these requirements even more challenging. Due to the direct and indirect effects 
of  the  ongoing  COVID-19  pandemic,  our  third-party  manufacturers  may  experience  difficulties  that  impact  our  product  candidates.  If  we  are  unable  to 
develop manufacturing processes for our clinical product candidates that satisfy these requirements, we will not be able to supply sufficient quantities of 
test material to conduct our clinical trials in a timely or cost-effective manner, and as a result, our development programs will be delayed, our financial 
performance will be adversely impacted and we will be unable to meet our long-term goals. 

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Certain  of  our  product  candidates  have  received  orphan  drug  designation  from  the  FDA.  However,  there  is  no  guarantee  that  we  will  be  able  to 
maintain  this  designation,  receive  this  designation  for  any  of  our  other  product  candidates,  or  receive  or  maintain  any  corresponding  benefits, 
including periods of exclusivity.

Certain  of  our  product  candidates  have  received  orphan  drug  designation.  We  may  also  seek  orphan  drug  designation  for  our  other  product 
candidates, as appropriate. While orphan drug designation does provide us with certain advantages, it neither shortens the development time or regulatory 
review time of a product candidate nor gives the product candidate any advantage in the regulatory review or approval process.

Generally, if a product candidate with orphan drug designation subsequently receives marketing approval before another product considered by the 
FDA to be the same for the same orphan indication, the product is entitled to a period of marketing exclusivity, which precludes the FDA from approving 
another marketing application for the same drug or biologic for the same indication for a period of seven years in the United States.

We may not be able to obtain any future orphan drug designations that we apply for. Orphan drug designations do not guarantee that we will be able 
to successfully develop our product candidates, and there is no guarantee that we will be able to maintain any orphan drug designations that we receive. For 
instance,  orphan  drug  designations  may  be  revoked  if  the  FDA  finds  that  the  request  for  designation  contained  an  untrue  statement  of  material  fact  or
omitted material information, or if the FDA finds that the product candidate was not eligible for designation at the time of the submission of the request.

Moreover, even if we are able to receive and maintain orphan drug designations, we may ultimately not receive any period of regulatory exclusivity 
if our product candidates are approved. For instance, we may not receive orphan product regulatory exclusivity if the indication for which we receive FDA 
approval is broader than the orphan drug designation. Orphan exclusivity may also be lost for the same reasons that orphan drug designation may be lost. 
Orphan exclusivity may further be lost if we are unable to assure a sufficient quantity of the product to meet the needs of patients with the rare disease or 
condition.

Even if we obtain orphan exclusivity for any of our current or future product candidates, that exclusivity may not effectively protect the product 
from  competition  as  different  products  can  be  approved  for  the  same  condition  or  products  that  are  the  same  as  ours  can  be  approved  for  different 
conditions. Even after an orphan product is approved, the FDA can also subsequently approve a product containing the same principal molecular features 
for the same condition if the FDA concludes that the later product is clinically superior. The FDA may further grant orphan drug designation to multiple 
sponsors for the same compound or active molecule and for the same indication. If another sponsor receives FDA approval for such product before we do, 
we  would  be  prevented  from  launching  our  product  in  the  United  States  for  the  orphan  indication  for  a  period  of  at  least  seven  years,  unless  we  can 
demonstrate clinical superiority. Moreover, third-party payors may reimburse for products off-label even if not indicated for the orphan condition.

We  may  seek  Breakthrough  Therapy  designation  by  the  FDA  for  a  product  candidate  that  we  develop,  and  we  may  be  unsuccessful.  If  we  are 
successful, the designation may not lead to a faster development or regulatory review or approval process, and it does not increase the likelihood that 
our product candidates will receive marketing approval.

We  may  seek  Breakthrough  Therapy  designation  for  any  product  candidate  that  we  develop.  A  breakthrough  therapy  is  defined  as  a  drug  that  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 that the drug may demonstrate substantial improvement over currently approved therapies on one or more clinically significant endpoints, such as 
substantial  treatment  effects  observed  early  in  clinical  development.  For  drugs  that  have  been  designated  as  breakthrough  therapies,  interaction  and 
communication between the FDA and the sponsor of the trial can help to identify the most efficient path for clinical development while minimizing the 
number of patients placed in ineffective control regimens. Drugs designated as breakthrough therapies by the FDA are also eligible for accelerated approval 
and priority review.

Even if we believe a product candidate we develop meets the criteria for designation as a breakthrough therapy, the FDA may disagree and instead 
determine not to make such designation. In any event, the receipt of Breakthrough Therapy designation for a product candidate may not result in a faster 
development  process,  review  or  approval  compared  to  drugs  considered  for  approval  under  conventional  FDA  procedures  and  does  not  assure  ultimate 
approval 

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by the FDA. In addition, even if the product candidates we develop qualify as breakthrough therapies, the FDA may later decide that the drugs no longer 
meet the conditions for qualification and rescind the designation.

We may seek designation for our ADAPTIR and ADAPTIR-FLEX platform technologies as a designated platform technology, but we might not receive 
such designation, and even if we do, such designation may not lead to a faster development, regulatory review or approval process.

We may seek designation for our ADAPTIR and ADAPTIR-FLEX platform technologies as a designated platform technology. Under the FDORA, a 
platform  technology  incorporated  within  or  utilized  by  a  biologic  is  eligible  for  designation  as  a  designated  platform  technology  if  (1)  the  platform 
technology  is  incorporated  in,  or  utilized  by,  a  product  approved  under  a  BLA;  (2)  preliminary  evidence  submitted  by  the  sponsor  of  the  approved  or 
licensed product, or a sponsor that has been granted a right of reference to data submitted in the application for such product, demonstrates that the platform 
technology has the potential to be incorporated in, or utilized by, more than one product without an adverse effect on quality, manufacturing, or safety; and 
(3) data or information submitted by the applicable person indicates that incorporation or utilization of the platform technology has a reasonable likelihood 
to bring significant efficiencies to the drug development or manufacturing process and to the review process. A sponsor may request the FDA to designate 
a  platform  technology  as  a  designated  platform  technology  concurrently  with,  or  at  any  time  after,  submission  of  an  IND  application  for  a  product  that 
incorporates or utilizes the platform technology that is the subject of the request. If so designated, the FDA may expedite the development and review of 
any subsequent original BLA for a product that uses or incorporates the platform technology. Even if we believe our platform technology meets the criteria 
for such designation, the FDA may disagree and instead determine not to grant such designation. In addition, the receipt of such designation for a platform 
technology does not ensure that a product will be developed more quickly or receive a faster FDA review process or ultimate FDA approval. Moreover, the 
FDA may revoke a designation if the FDA determines that a designated platform technology no longer meets the criteria for such designation.

We  have  in  the  past  and  may  in  the  future  conduct  clinical  trials  for  our  product  candidates  outside  the  United  States,  and  the  FDA  or  non-U.S. 
regulatory authorities may not accept data from such trials in the development or approval of our product candidates in those jurisdictions.

We have in the past and may in the future conduct clinical trials outside the U.S. and the FDA and foreign regulatory authorities may not accept 
those data in support of the further development or approval of our product candidates. The acceptance of trial data from clinical trials conducted outside 
the United States by the FDA or applicable foreign regulatory authority may be subject to certain conditions. In cases where data from foreign clinical trials 
are intended to serve as the basis for marketing approval in the United States, the FDA will generally not approve the application on the basis of foreign 
data alone unless (i) the data are applicable to the United States population and United States medical practice; (ii) the trials were performed by clinical 
investigators of recognized competence; and (iii) the data may be considered valid without the need for an on-site inspection by the FDA, or if the FDA 
considers such an inspection to be necessary, the FDA is able to validate the data through an on-site inspection or other appropriate means. Additionally, 
the FDA’s clinical trial requirements, including sufficient size of patient populations and statistical powering, must be met. Many foreign regulatory bodies 
have similar approval requirements.

In addition, such foreign trials will be subject to the applicable local laws of the foreign jurisdictions where the trials are conducted. There can be no 
assurance that the FDA or any applicable foreign regulatory authority will accept data from trials conducted outside of the United States. If the FDA or any 
applicable foreign regulatory authority does not accept such data, it would result in the need to conduct additional trials beyond those we have planned, 
which would be costly and time-consuming and delay aspects of our business plan, and which may result in our product candidates not receiving marketing 
approval for commercialization in the applicable jurisdiction.

Commercialization Risks 

Our ability to grow revenues and execute on our long-term strategy depends heavily on our ability to discover, develop, and obtain marketing approval 
for our product candidates. 

We currently have no products approved for commercial distribution. We have invested a significant portion of our efforts and financial resources in 
the development of our product candidates. Our business depends on the successful development and commercialization of our product candidates, which 
will require additional clinical and preclinical development, regulatory approval, commercial manufacturing arrangements, establishment of a 

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commercial organization, significant marketing efforts, and further investment, which may never occur. Our ability to generate revenues is substantially 
dependent on our ability to develop, obtain regulatory approval for, and then successfully commercialize our product candidates. Except for the revenues 
from previously sold products, we currently generate no revenues from sales of any products, and we may never be able to develop or commercialize a 
marketable product.

In order for us to achieve our long-term business objectives, we will need to successfully discover and/or develop and commercialize our product 
candidates. Although we have made, and expect to continue to make, significant investments in research and development, we have had only a limited 
number of our internally-discovered product candidates reach the clinical development stage. We currently have two clinical-stage candidates, APVO436 
and ALG.APV-527, which were built on the ADAPTIR platform. Drug discovery and development is a complex, time-consuming and expensive process 
that  is  fraught  with  risk  and  a  high  rate  of  failure.  Our  product  candidates  are  susceptible  to  the  risks  of  failure  inherent  at  any  stage  of  product 
development,  including  the  appearance  of  unexpected  or  unacceptable  adverse  events  or  failure  to  demonstrate  efficacy  in  clinical  trials.  Failure  to 
successfully discover and/or develop, obtain marketing approval for and commercialize additional products and product candidates would likely have a 
material adverse effect on our ability to grow revenues and improve our financial condition. If we are required to conduct additional clinical trials or other 
testing of our product candidates that we develop beyond those that we currently expect, if we are unable to successfully complete clinical trials of our 
product candidates or other testing, if the results of these trials or tests are not positive or are only modestly positive, or if there are safety concerns, we may 
be  delayed  in  obtaining  marketing  approval  for  our  product  candidates,  not  obtain  marketing  approval  at  all,  obtain  approval  for  limited  indications  or 
patient populations, with a label without claims necessary for us to successfully market our products, or with significant labeled warnings. We may also be 
subject  to  additional  post-marketing  testing  requirements,  surveillance  requirements,  or  REMS.  To  the  extent  any  of  the  foregoing  should  occur,  our 
business may be materially harmed.

We may not be successful in our efforts to use and further develop our ADAPTIR or ADAPTIR-FLEX platforms.

A key element of our strategy is to expand our product pipeline of immunotherapeutics based on our ADAPTIR and ADAPTIR-FLEX platform 
technologies. We plan to select and create product candidates for early development, potentially with other collaborative partners. We expect to continue to 
develop the platform to address unmet medical needs through directed cytokine delivery via monospecifics and bispecifics in areas including oncology, and 
multi-specific  molecules  in  oncology  and  other  therapeutic  areas.  Our  goal  is  to  leverage  this  technology  to  make  targeted  investment  in  monospecific, 
bispecific, and multi-specific ADAPTIR and ADAPTIR-FLEX therapeutics. Even if we are successful in continuing to build our pipeline, the potential 
product candidates that we identify may not be suitable for clinical development, including as a result of being shown to have harmful side effects or other 
characteristics  that  indicate  that  they  are  unlikely  to  be  products  that  will  receive  marketing  approval  and  achieve  market  acceptance.  If  we  do  not 
successfully  develop  and  commercialize  product  candidates  based  on  our  ADAPTIR  and  ADAPTIR-FLEX  platform  technologies,  our  ability  to  obtain 
product revenues in future periods may be adversely affected, which likely would result in harm to our financial position and our financial prospects, and 
adversely affect our stock price. 

We  face  and  will  continue  to  face  substantial  competition  and  our  failure  to  effectively  compete  may  prevent  us  from  achieving  significant  market 
penetration for our product candidates, if approved.

The development and commercialization of new biotechnology products is highly competitive and subject to rapid technological advances. We may 
face future competition with respect to our current product candidates and any product candidates we may seek to develop or commercialize in the future 
obtained from other companies and governments, universities, and other non-profit research organizations. Our competitors may develop products that are 
safer, more effective, more convenient, or less costly than any products that we may develop or market, or may obtain marketing approval for their products 
from the FDA, or equivalent foreign regulatory bodies more rapidly than we may obtain approval for our product candidates. Our competitors may have 
greater resources and may devote greater resources to research and develop their products, research and development capabilities, adapt more quickly to 
new technologies, scientific advances or patient preferences and needs, initiate or withstand substantial price competition or macroeconomic impacts more 
successfully, or more effectively negotiate third-party licensing and collaborative arrangements. 

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We  believe  that  our  most  significant  competitors  in  the  oncology  market  include:  AbbVie  Inc.,  Affimed,  Amgen  Inc.,  AnaptysBio,  Inc.,  Astellas 
Pharma  Inc.,  Bayer  AG,  Biogen  Idec  Inc.,  Boehringer  Ingelheim  GmbH,  Bristol  Myers  Squibb,  Cellectis,  Chinook  Therapeutics,  City  of  Hope,  F-Star 
Biotechnology Ltd., Genentech Inc. (a subsidiary of F. Hoffmann-La Roche Ltd.), Genmab A/S, Gilead Sciences, Inc., GlaxoSmithKline plc, Grifols USA 
LLC,  Harpoon  Therapeutics,  ImmunoGen,  Inc.,  Immunomedics,  Inc.,  Inhibrx  Inc.,  Innate  Pharma,  Janssen  BioTech  Inc.,  Johnson  &  Johnson,  Kyowa 
Hakko  Kirin  Pharma,  Macrogenics,  Inc.,  Mustang  Bio,  Pieris  Pharmaceuticals,  Inc.,  ProMab  Biotechnologies,  Sanofi-Aventis  US  LLC,  Strike  Pharma, 
Takeda  Pharmaceuticals  U.S.A.,  Inc.,  University  of  Pennsylvania,  VenCell  Therapeutics,  Xencor,  Inc.,  Y-mAbs  Therapeutics,  Inc.,  and  Zymeworks 
Biopharmaceuticals, Inc. We expect to compete on the basis of product efficacy, safety, ease of administration, price and economic value compared to drugs 
used  in  current  practice  or  currently  being  developed.  If  we  are  not  successful  in  demonstrating  these  attributes,  physicians  and  other  key  healthcare 
decision makers may choose other products over any products we successfully develop, switch from our products to new products or choose to use our 
products only in limited circumstances, which could adversely affect our business, financial condition and results of operations. 

Any of our product candidates, if approved, may become subject to unfavorable pricing regulations or third-party coverage and reimbursement policies, 
which would harm our business.

The  success  of  our  product  candidates,  if  approved,  will  depend  upon,  among  other  things,  their  acceptance  by  physicians,  patients,  third-party 
payors, and other members of the medical community as a therapeutic and cost-effective alternative to competing products and treatments. If any of our 
product candidates do not achieve and maintain an adequate level of acceptance, we may not generate material revenues from sales of these products. The 
degree  of  market  acceptance  of  our  products  will  depend  on  a  number  of  factors,  including:  our  ability  to  provide  acceptable  evidence  of  safety  and 
efficacy; the prevalence and severity of any side effects; availability, relative cost and relative efficacy of alternative and competing treatments; the ability 
to offer our products for sale at competitive prices; our ability to continuously supply the market without interruption; the relative convenience and ease of
administration; the willingness of the target patient population to try new products and of physicians to prescribe these products; the strength of marketing 
and distribution support; publicity concerning our products or competing products and treatments; and the sufficiency of coverage or reimbursement by 
third parties. 

Legislative or healthcare reform measures may have a material adverse effect on our business and results of operations.

In the United States, there have been and continue to be a number of legislative initiatives to contain healthcare costs. For example, in March 2010, 
the ACA was enacted, which substantially changed the way health care is financed by both governmental and private insurers, and significantly impacted 
the U.S. pharmaceutical industry. However, some provisions of the ACA have yet to be fully implemented and certain provisions have been subject to legal 
and  political  challenges,  as  well  as  efforts  to  repeal,  replace  delay,  circumvent,  or  loosen  certain  aspects  of  the  ACA  or  mandates  required  thereby. 
Additionally,  Congress  has  considered  legislation  that  would  repeal  or  repeal  and  replace  all  or  part  of  the  ACA.  While  Congress  has  not  passed 
comprehensive repeal legislation, it has enacted laws that modify certain provisions of the ACA, such as removing penalties as of January 1, 2019 for not 
complying with the ACA’s individual mandate to carry health insurance, delaying the implementation of certain ACA-mandated fees, and increasing the 
point-of-sale  discount  that  is  owed  by  pharmaceutical  manufacturers  who  participate  in  Medicare  Part  D.  On  June  17,  2021,  the  U.S.  Supreme  Court 
dismissed  the  most  recent  judicial  challenge  to  the  ACA  brought  by  several  states  without  specifically  ruling  on  the  constitutionality  of  the  ACA.  It  is 
unclear how other healthcare reform measures of the Biden administration or other efforts, if any, to challenge, repeal or replace the ACA will impact our 
business. In addition, other legislative changes have been proposed and adopted in the United States since the ACA was enacted: 

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On August 2, 2011, the Budget Control Act of 2011 among other things, included aggregate reductions of Medicare payments to providers of 
2%  per  fiscal  year.  These  reductions  went  into  effect  on  April  1,  2013  and,  due  to  subsequent  legislative  amendments  to  the  statute,  will 
remain in effect through 2030, with the exception of a temporary suspension from May 1, 2020 through March 31, 2022 due to the COVID-
19 pandemic. Following the temporary suspension, a 1% payment reduction occurred beginning April 1, 2022 through June 30, 2022, and the 
2% payment reduction will resume on July 1, 2022.

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•

On May 30, 2018, the Right to Try Act, was signed into law. The law, among other things, provides a federal framework for certain patients 
to access certain investigational new drug products that have completed a Phase 1 clinical trial and that are undergoing investigation for FDA 
approval.  Under  certain  circumstances,  eligible  patients  can  seek  treatment  without  enrolling  in  clinical  trials  and  without  obtaining  FDA 
permission under the FDA expanded access program. There is no obligation for a pharmaceutical manufacturer to make its drug products 
available to eligible patients as a result of the Right to Try Act.

In  addition,  other  legislative  changes  have  been  proposed  and  adopted  in  the  United  States  since  the  ACA  was  enacted.  On  August  2,  2011,  the 
Budget Control Act of 2011 among other things, created measures for spending reductions by Congress. A Joint Select Committee on Deficit Reduction, 
tasked with recommending a targeted deficit reduction of at least $1.2 trillion for the years 2013 through 2021, was unable to reach required goals, thereby 
triggering the legislation’s automatic reduction to several government programs. This includes aggregate reductions of Medicare payments to providers of 2 
percent per fiscal year. These reductions went into effect on April 1, 2013 and, due to subsequent legislative amendments to the statute, will remain in 
effect through 2030 unless additional Congressional action is taken. 

Additionally,  there  has  been  heightened  governmental  scrutiny  recently  over  the  manner  in  which  manufacturers  set  prices  for  their  marketed 
products. For example, there have been several recent Congressional inquiries and proposed and enacted federal and state legislation designed to, among 
other things, bring more transparency to drug pricing, review the relationship between pricing and manufacturer patient programs, and reform government 
program  reimbursement  methodologies  for  drug  products,  including  by  tying  reimbursement  to  the  price  of  products  in  other  developed  countries.  For 
example,  proposals  have  been  made  to  increase  drug  manufacturer  competition,  increase  the  negotiating  power  of  certain  federal  healthcare  programs, 
incentivize manufacturers to lower the list price of their products, and reduce the out-of-pocket costs of drug products paid by consumers. Individual states 
in the United States have also become increasingly active in passing legislation and implementing regulations designed to control pharmaceutical product 
pricing,  including  price  or  patient  reimbursement  constraints,  discounts,  restrictions  on  certain  product  access  and  marketing  cost  disclosure  and 
transparency  measures,  and,  in  some  cases,  designed  to  encourage  importation  from  other  countries  and  bulk  purchasing.  Legislative  and  regulatory 
agendas, as they relate to the healthcare and pharmaceutical industries and the economy as a whole, of the Biden administration and the U.S. Congress 
currently remain uncertain. One example of President Biden’s priorities came via an executive order that he issued on July 9, 2021 directing the FDA to, 
among other things, continue to clarify and improve the approval framework for biosimilars, including the standards for interchangeability of biological 
products, facilitate the development and approval of biosimilar and interchangeable products, clarify existing requirements and procedures related to the 
review  and  submission  of  BLAs,  and  identify  and  address  any  efforts  to  impede  biosimilar  competition.  Any  new  laws  and  initiatives  may  result  in 
additional  reductions  in  Medicare  and  other  healthcare  funding  or  impose  additional  regulatory  requirements  on  drug  development  or  approval,  which 
could have a material adverse effect on our future customers and accordingly, our financial operations.

We  expect  that  additional  state  and  federal  healthcare  reform  measures  will  be  adopted  in  the  future,  any  of  which  could  limit  the  amounts  that 
federal  and  state  governments  will  pay  for  healthcare  products  and  services,  which  could  result  in  reduced  demand  for  any  product  candidates  we 
successfully develop or additional pricing pressures. 

Regulatory and Compliance Risks 

Our long-term success depends, in part, upon our ability to develop, receive regulatory approval for and commercialize our product candidates. 

Our product candidates and the activities associated with their development, including testing, manufacture, recordkeeping, storage, and approval, 
are subject to comprehensive regulation by the FDA and other regulatory agencies in the United States and by comparable authorities in other countries. 
Failure to obtain regulatory approval for a product candidate will prevent us from commercializing the product candidate. We have limited resources for 
use  in  preparing,  filing,  and  supporting  the  applications  necessary  to  gain  regulatory  approvals  and  expect  to  rely  on  third-party  contract  research 
organizations and consultants to assist us in this process. 

The  FDA  and  other  comparable  regulatory  agencies  in  foreign  countries  impose  substantial  and  rigorous  requirements  for  the  development, 
production, marketing authorization and commercial introduction of drug products. These requirements include non-clinical, laboratory and clinical testing 
procedures,  sampling  activities,  clinical  trials,  and  other  costly  and  time-consuming  procedures.  In  addition,  regulation  is  not  static,  and  regulatory 
authorities, 

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including  the  FDA  evolve  in  their  staff  interpretations  and  practices  and  may  impose  more  stringent  or  different  requirements  than  currently  in  effect, 
which may adversely affect our planned and ongoing drug development and/or our sales and marketing efforts. 

In the United States, to obtain approval from the FDA to market any of our future biologic products, we will be required to submit a BLA to the
FDA. Ordinarily, the FDA requires a sponsor to support a BLA with substantial evidence of the product’s safety, purity, and potency in treating the targeted 
indication based on data derived from adequate and well-controlled clinical trials, including Phase 3 safety and efficacy trials conducted in patients with the 
disease or condition being targeted. 

Developing  and  obtaining  regulatory  approval  for  product  candidates  is  a  lengthy  process,  often  taking  a  number  of  years,  is  uncertain  and 
expensive. All of the product candidates that we are developing, or may develop in the future, require research and development, non-clinical studies, non-
clinical testing, and clinical trials prior to seeking regulatory approval, and commencing commercial sales. In addition, we may need to address a number of 
technological challenges in order to complete development of our product candidates. As a result, the development of product candidates may take longer 
than anticipated or not be successful at all. 

Our product candidate development costs will also increase if we experience delays in testing or approvals, and we may not have sufficient funding 
to complete the testing and approval process for any of our product candidates. We may be required to obtain additional funds to complete clinical trials 
and  prepare  for  possible  commercialization  of  our  product  candidates.  We  do  not  know  whether  any  non-clinical  tests  or  clinical  trials  above  what  we 
currently have planned will be required, will begin as planned, will need to be restructured, or will be completed on schedule, or at all. Significant delays 
relating  to  any  preclinical  or  clinical  trials  also  could  shorten  any  periods  during  which  we  may  have  the  exclusive  right  to  commercialize  our  product 
candidates or allow our competitors to bring products to market before we do. This may prevent us from receiving marketing approvals and impair our 
ability to successfully commercialize our product candidates and may harm our business and results of operations. In addition, many of the factors that 
cause, or lead to, delays in clinical trials may ultimately lead to the denial of marketing approval of any of our product candidates. If any of this occurs, our 
business, financial condition, results of operations, and prospects will be materially harmed.

Generally,  no  product  can  receive  FDA  approval,  marketing  authorization  from  the  European  Commission  or  the  competent  authorities  of  the  EU 
Member States, or approval from comparable regulatory agencies in foreign countries unless data generated in human clinical trials demonstrates both 
safety and efficacy for each target indication in accordance with such authority’s standards. 

The  large  majority  of  product  candidates  that  begin  human  clinical  trials  fail  to  demonstrate  the  required  safety  and  efficacy  characteristics 
necessary for marketing approval. Failure to demonstrate the safety and efficacy of any of our product candidates for each target indication in clinical trials
would prevent us from obtaining required approvals from regulatory authorities, which would prevent us from commercializing those product candidates. 
Negative  or  inconclusive  results  from  the  clinical  trials  or  adverse  medical  events  during  the  trials  could  lead  to  requirements  that  trials  be  repeated  or 
extended,  or  that  additional  trials  be  conducted,  any  of  which  may  not  be  clinically  feasible  or  financially  practicable,  that  the  conduct  of  trials  be 
suspended, or that a program be terminated. 

Any regulatory approval we ultimately obtain may limit the indicated uses for the product or subject the product to restrictions or post-approval 
commitments that render the product commercially non-viable. Securing regulatory approval requires the submission of extensive non-clinical and clinical 
data,  information  about  product  manufacturing  processes  and  inspection  of  facilities  and  supporting  information  to  the  regulatory  authorities  for  each 
therapeutic indication to establish the product’s safety and efficacy. If we are unable to submit the necessary data and information, for example, because the 
results of clinical trials are not favorable, or if the applicable regulatory authority delays reviewing or does not approve our applications, we will be unable 
to obtain regulatory approval. 

Delays  in  obtaining  or  failure  to  obtain  regulatory  approvals  may  delay  or  prevent  the  successful  commercialization  of  any  of  the  products  or 

product candidates in the jurisdiction for which approval is sought; diminish our competitive advantage; and defer or decrease our receipt of revenue. 

Some  of  our  product  candidates  previously  in  development  experienced  regulatory  and/or  clinical  setbacks.  Clinical  development  has  been 
discontinued for product candidates otlertuzumab, APVO414, and APVO210. Both APVO414 and APVO210 were discontinued after patients developed 
ADA.  Most  recently,  in  2019,  we  elected  to  discontinue  the  APVO210  development  program  following  the  review  of  data  from  the  Phase  1  multiple 
ascending 

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dose (MAD) clinical study of APVO210 in healthy volunteers that suggests that APVO210 would not meet the desired target product profile for future 
commercialization. Specifically, the clinical data showed evidence of increasing titers of ADA with repeated doses of APVO210, which had varying impact 
on APVO210 drug levels in subjects’ blood.  The cause of the ADA is uncertain; however, we believe that appearance of ADA is related to the mechanism 
of  action  of  APVO210,  and  not  due  to  the  structure,  or  sequences  characteristic  of  the  ADAPTIR  platform.      Although  we  have  re-designed  certain 
components of the ADAPTIR platform based on what we have learned in prior clinical trials, there is no guarantee that the occurrence of ADA or other 
clinical setbacks will not occur in the development of our existing and future ADAPTIR product candidates.

The procedures to obtain marketing approvals vary among countries and can involve additional clinical trials or other pre-filing requirements. The 
time required to obtain foreign regulatory approval may differ from that required to obtain FDA approval. The foreign regulatory approval process may 
include all the risks associated with obtaining FDA approval, or different or additional risks. Regulatory agencies may have varying interpretations of the 
same data, and approval by one regulatory authority does not ensure approval by regulatory authorities in other jurisdictions. Accordingly, approval by the 
FDA does not ensure approval by the regulatory authorities in other countries, and approval by one foreign regulatory authority does not ensure approval 
by the FDA or regulatory authorities in other foreign countries. Failure to obtain regulatory approval in one jurisdiction, however, may impact the decision 
of other jurisdictions.  We may not be able to file for regulatory approvals and may not receive necessary approvals to commercialize our products and 
products in development in any market on a timely basis, if at all.

Inadequate  funding  for  the  FDA,  the  SEC  and  other  government  agencies,  including  from  government  shutdowns,  or  other  disruptions  to  these 
agencies’ operations, could hinder their ability to hire and retain key leadership and other personnel, prevent new products and services from being 
developed  or  commercialized  in  a  timely  manner  or  otherwise  prevent  those  agencies  from  performing  normal  business  functions  on  which  the 
operation of our business may rely, which could negatively impact our business.

The ability of the FDA to review and approve new products can be affected by a variety of factors, including government budget and funding levels, 
the ability to hire and retain key personnel and accept the payment of user fees, and statutory, regulatory and policy changes. Average review times at the 
agency have fluctuated in recent years as a result. In addition, government funding of the SEC and other government agencies on which our operations may 
rely, including those that fund research and development activities, is subject to the political process, which is inherently fluid and unpredictable.

Disruptions  at  the  FDA  and  other  agencies  may  also  slow  the  time  necessary  for  new  product  candidates  to  be  reviewed  and/or  approved  by 
necessary government agencies, which would adversely affect our business. If a prolonged government shutdown occurs, it could significantly impact the 
ability of the FDA to timely review and process our regulatory submissions, which could have a material adverse effect on our business. Further, future 
government shutdowns could impact our ability to access the public markets and obtain necessary capital in order to properly capitalize and continue our 
operations.

Our product candidates are and will continue to be subject to ongoing obligations and continued regulatory review, which may result in significant 
additional expense.  We may be subject to penalties if we fail to comply with regulatory requirements or experience unanticipated problems with our 
products.

We  and  our  product  candidates  are  subject  to  extensive  and  ongoing  requirements  of  and  review  by  the  FDA  and  other  regulatory  authorities, 
including requirements related to the conduct of clinical and non-clinical studies, manufacturing processes, post-approval clinical data, labeling, packaging, 
distribution, adverse event reporting, storage, recordkeeping, export, import, advertising, marketing, and promotional activities for such products. These 
requirements further include submissions of safety and other post-marketing information, including manufacturing deviations and reports, registration and 
listing  requirements,  the  payment  of  annual  fees,  continued  compliance  with  GMP-requirements  relating  to  manufacturing,  quality  control,  quality 
assurance, and corresponding maintenance of records and documents, and requirements regarding the distribution of samples to physicians. Manufacturers 
and manufacturers’ facilities are required to comply with extensive FDA, and comparable foreign regulatory authority requirements, including ensuring 
that quality control and manufacturing procedures conform to GMP requirements and applicable product tracking and tracing requirements.

FDA and comparable foreign regulatory authorities will continue to closely monitor the safety profile of any product even after approval. If the FDA 

or comparable foreign regulatory authorities become aware of new safety 

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information after approval of any of our product candidates, they may, among other actions, withdraw approval, require labeling changes or establishment 
of a REMS or similar strategy, impose significant restrictions on a product’s indicated uses or marketing, or impose ongoing requirements for potentially 
costly post-approval studies or post-market surveillance. Any such restrictions could limit sales of the product.

We and any of our collaborators could be subject to periodic unannounced inspections by the FDA to monitor and ensure compliance with GMPs 
and other FDA regulatory requirements. Application holders must further notify the FDA, and depending on the nature of the change, obtain FDA pre-
approval for product and manufacturing changes.  In addition, later discovery of previously unknown adverse events or that the product is less effective 
than previously thought or other problems with our products, manufacturers or manufacturing processes, or failure to comply with regulatory requirements 
both before and after approval, may yield various results, including:

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restrictions on manufacturing or distribution, or marketing of such products;

modifications to promotional pieces and product labels;

issuance of corrective information;

requirements to conduct post-marketing studies or other clinical trials;

clinical holds or termination of clinical trials;

requirements to establish or modify a REMS or a similar strategy;

changes to the way the product is administered;

liability for harm caused to patients or subjects;

reputational harm;

the product becoming less competitive;

warning, untitled, or cyber letters;

suspension of marketing or withdrawal of the products from the market;

regulatory authority issuance of safety alerts, Dear Healthcare Provider letters, press releases, or other communications containing warnings 
or other safety information about the product;

refusal to approve pending applications or supplements to approved applications that we submit;

recalls of products;

fines, restitution or disgorgement of profits or revenues;

suspension or withdrawal of marketing approvals;

refusal to permit the import or export of our products;

product seizure or detention;

FDA debarment, suspension and debarment from government contracts, and refusal of orders under existing government contracts, exclusion 
from federal healthcare programs, consent decrees, or corporate integrity agreements; or

injunctions or the imposition of civil or criminal penalties, including imprisonment.

Any of these events could prevent us from achieving or maintaining product approval and market acceptance of the particular product candidate, if 
approved, or could substantially increase the costs and expenses of developing and commercializing such product, which in turn could delay or prevent us 
from generating significant revenues from its sale. Any of these events could further have other material and adverse effects on our operations and business 
and could adversely impact our stock price and could significantly harm our business, financial condition, results of operations, and prospects.

The  FDA’s  policies  may  change  and  additional  government  laws  and  regulations  may  be  enacted  that  could  prevent,  limit,  or  delay  regulatory 

approval of our product candidates, that could limit the marketability of our product 

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candidates,  or  that  could  impose  additional  regulatory  obligations  on  us.  For  example,  the  current  administration  may  implement  new  or  revised  laws, 
regulatory requirements, and associated compliance obligations, as well as postponed or frozen regulatory requirements.  Changes in medical practice and 
standard  of  care  may  also  impact  the  marketability  of  our  product  candidates.  If  we  are  slow  or  unable  to  adapt  to  changes  in  existing  requirements, 
standards of care, or the adoption of new requirements or policies, or if we are not able to maintain regulatory compliance, we may lose any marketing 
approval that we may have obtained and be subject to regulatory enforcement action.

Should any of the above actions take place, they could adversely affect our ability to achieve or sustain profitability. Further, the cost of compliance 

with post-approval regulations may have a negative effect on our operating results and financial condition. 

If we fail to comply with foreign, federal, state, and local healthcare laws, including fraud and abuse and health information privacy and security laws, 
we could face substantial penalties and our business, results of operations, financial condition and prospects could be adversely affected. 

As a biotechnology company, even though we do not provide healthcare services or receive payments directly from or bill directly to Medicare, 
Medicaid, or other third-party payors for our products, certain federal, state, local and foreign healthcare laws and regulations pertaining to fraud and abuse 
and  patients’  rights  are  applicable  to  our  business.  We  are  subject  to  healthcare  fraud  and  abuse  and  patient  privacy  regulation  by  both  the  federal 
government and the states in which we conduct our business. The laws that may affect our ability to operate include: 

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the federal Anti-Kickback Statute makes it illegal for any person or entity, including a prescription drug manufacturer (or a party acting on its 
behalf) to knowingly and willfully solicit, receive, offer or pay remuneration, directly or indirectly, overtly or covertly, to induce, or in return 
for,  either  the  referral  of  an  individual,  or  the  purchase,  lease,  prescribing  or  recommendation  of  an  item,  good,  facility  or  service 
reimbursable  by  a  federally  funded  healthcare  program,  such  as  the  Medicare  or  Medicaid  program.  The  term  “remuneration”  has  been 
interpreted  broadly  and  may  constrain  our  marketing  practices,  educational  programs,  pricing  policies  and  relationships  with  healthcare 
providers or other entities, among other activities; 

federal  civil  and  criminal  false  claims,  including  the  federal  False  Claims  Act,  and  false  statement  laws  and  civil  monetary  penalty  laws, 
which  impose  criminal  and  civil  penalties,  including  through  civil  whistleblower  or  qui  tam  actions,  on  individuals  or  entities  for,  among 
other things, knowingly presenting, or causing to be presented, claims for payment or approval from Medicare, Medicaid or other federal 
health  care  programs  that  are  false  or  fraudulent  or  knowingly  making  any  materially  false  statement  in  connection  with  the  delivery  or 
payment for healthcare benefits, items or services;

the  U.S.  federal  Health  Insurance  Portability  and  Accountability  Act  of  1996,  as  amended,  or  HIPAA,  which  imposes  criminal  and  civil
liability for, among other things, knowingly and willfully executing, or attempting to execute, a scheme to defraud any healthcare benefit 
program or obtain, by means of false or fraudulent pretenses, representations, or promises, any of the money or property owned by, or under 
the  custody  or  control  of,  any  healthcare  benefit  program,  regardless  of  the  payor  (e.g.,  public  or  private)  and  knowingly  and  willfully 
falsifying, concealing or covering up by any trick or device 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 U.S. 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,  as  amended  by  the  Health  Information  Technology  for  Economic  and  Clinical  Health,  or  HITECH,  and  their  respective 
implementing  regulations  mandates,  among  other  things,  the  adoption  of  uniform  standards  for  the  electronic  exchange  of  information  in 
common  healthcare  transactions,  as  well  as  standards  relating  to  the  privacy,  security  and  transmission  of  individually  identifiable  health 
information,  which  require  the  adoption  of  administrative,  physical  and  technical  safeguards  to  protect  such  information.  Among  other 
things,  HITECH  makes  HIPAA's  security  standards  directly  applicable  to  "business  associates",  or  independent  contractors  or  agents  of 
covered  entities  that  create,  receive  or  obtain  protected  health  information  in  connection  with  providing  a  service  for  or  on  behalf  of  a 
covered entity; 

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•

•

the Physician Payments Sunshine Act and its implementing regulations, which requires certain manufacturers of drugs, biologics, medical 
devices and medical supplies for which payment is available under Medicare, Medicaid or the CMS, certain payments and transfers of value 
made to physicians and teaching hospitals, and ownership or investment interests held by physicians and their immediate family members. 
Effective January 1, 2022, applicable manufacturers are required to report information regarding payments and transfers of value provided to 
physician assistants, nurse practitioners, clinical nurse specialists, certified nurse anesthetists, and certified nurse-midwives; 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  and  foreign  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;  state,  local  and  foreign  laws  that  require  pharmaceutical  companies  to  comply  with  the  pharmaceutical 
industry’s  voluntary  compliance  guidelines  and  the  relevant  compliance  guidance  promulgated  by  the  federal  government,  obtain 
pharmaceutical agent licensure, and/or otherwise restrict payments that may be made to healthcare providers and entities; and state, local and 
foreign  laws  and  industry  codes  that  require  drug  manufacturers  to  report  information  related  to  payments  and  other  transfers  of  value  to 
healthcare providers or entities, or marketing expenditures. 

Because of the breadth of these laws and the narrowness of the statutory exceptions and safe harbors available under the U.S. federal Anti-Kickback 
Statute, it is possible that some of our business activities could be subject to challenge under one or more of such laws. Moreover, recent health care reform 
legislation has strengthened these laws. For example, the ACA, among other things, amends the intent requirement of the federal Anti-Kickback Statute 
and criminal health care fraud statutes, so that a person or entity no longer needs to have actual knowledge of the statute or specific intent to violate it. In 
addition, the ACA provides that the government may assert that 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 False Claims Act. 

Recently, several pharmaceutical and other healthcare companies have been prosecuted under the federal false claims laws for allegedly inflating 
drug prices they report to pricing services, which in turn are used by the government to set Medicare and Medicaid reimbursement rates, and for allegedly 
providing  free  product  to  customers  with  the  expectation  that  the  customers  would  bill  federal  programs  for  the  product.  In  addition,  certain  marketing 
practices, including off-label promotion, interactions with specialty pharmacies, and patient assistance programs may also violate fraud and abuse laws. To 
the extent that any product we make is sold in a foreign country, we may be subject to similar foreign laws and regulations. 

In addition, certain state and local laws mandate that we comply with a state code of conduct, adopt a company code of conduct under state criteria, 
disclose marketing payments made to health care professionals and entities, disclose drug pricing information and/or report compliance information to the 
state  authorities.  The  shifting  compliance  environment  and  the  need  to  build  and  maintain  robust  and  expandable  systems  to  comply  in  multiple 
jurisdictions with different compliance and reporting requirements increase the possibility that a pharmaceutical company may violate one or more of the 
requirements. Any failure to comply with these reporting requirements could result in significant fines and penalties. 

The risks of complying with these laws cannot be entirely eliminated. The risk of violation of such laws is also increased because many of them 
have not been fully interpreted by the regulatory authorities or the courts, and their provisions are open to a variety of interpretations. Any action against us 
for  violation  of  these  laws,  even  if  we  successfully  defend  against  it,  could  cause  us  to  incur  significant  legal  expenses  and  divert  our  management’s 
attention  from  the  operation  of  our  business.  Moreover,  achieving  and  sustaining  compliance  with  applicable  federal,  state,  local  and  foreign  privacy, 
security, fraud and transparency laws may prove costly. If our past or present operations, or those of our distributors are found to be in violation of any of 
the  laws  described  above  or  any  other  governmental  regulations  that  apply  to  us,  we  may  be  subject  to  sanctions,  including  civil  and  administrative 
penalties,  criminal  fines,  damages,  disgorgement,  exclusion  from  participation  in  U.S.  federal  or  state  health  care  programs,  individual  imprisonment, 
integrity  obligations,  and  the  curtailment  or  restructuring  of  our  operations,  any  of  which  could  materially  adversely  affect  our  ability  to  operate  our 
business  and  our  financial  results.  Similarly,  if  healthcare  providers,  distributors  or  other  entities  with  whom  we  do  business  are  found  to  be  out  of 
compliance with applicable laws and regulations, they may be subject to sanctions, which could also have a negative impact on us. 

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Our  employees,  independent  contractors,  consultants,  commercial  partners,  principal  investigators,  or  CROs  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,  independent  contractors,  consultants,  commercial 
partners, manufacturers, investigators, or CROs could include intentional, reckless, negligent, or unintentional failures to comply with FDA regulations or 
applicable fraud and abuse laws, provide accurate information to the FDA, properly calculate pricing information required by federal programs, comply 
with federal procurement rules or contract terms, report financial information or data accurately or disclose unauthorized activities to us. This misconduct 
could also involve the improper use or misrepresentation of information obtained in the course of clinical trials, which could result in regulatory sanctions 
and serious harm to our reputation. It is not always possible to identify and deter this type of 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 or regulations. Moreover, it is possible for a whistleblower to pursue a False Claims 
Act case against us even if the government considers the claim unmeritorious and declines to intervene, which could require us to incur costs defending 
against  such  a  claim.  Further,  due  to  the  risk  that  a  judgment  in  a  False  Claims  Act  case  could  result  in  exclusion  from  federal  health  programs  or 
debarment from government contracts, whistleblower cases often result in large settlements. If any such actions are instituted against us, and we are not 
successful in defending ourselves or asserting our rights, those actions could have a significant impact on our business, financial condition, and results of 
operations, including the imposition of significant fines or other sanctions.

Our  operations,  including  our  use  of  hazardous  materials,  chemicals,  bacteria,  and  viruses,  require  us  to  comply  with  regulatory  requirements  and 
expose us to significant potential liabilities. 

Our operations involve the use of hazardous materials, including chemicals, and may produce dangerous waste products. Accordingly, we, along 
with the third parties that conduct clinical trials and manufacture our products and product candidates on our behalf, are subject to federal, state, local and 
foreign laws and regulations that govern the use, manufacture, distribution, storage, handling, exposure, disposal and recordkeeping with respect to these 
materials.  We  are  also  subject  to  a  variety  of  environmental  and  occupational  health  and  safety  laws.  Compliance  with  current  or  future  laws  and 
regulations can require significant costs and we could be subject to substantial fines and penalties in the event of noncompliance. In addition, the risk of 
contamination or injury from these materials cannot be completely eliminated. In such event, we could be held liable for substantial civil damages or costs 
associated with the cleanup of hazardous materials. 

Intellectual Property Risks 

If we are unable to protect our intellectual proprietary rights, our business could be harmed. 

Our commercial success will depend, in large part, on our ability to obtain and maintain protection in the United States and other countries for the 
intellectual  property  covering  or  incorporated  into  our  technology,  products  and  product  candidates.  Obtaining  and  maintaining  this  protection  is  very 
costly.  The  patentability  of  technology  in  the  biotechnology  field  generally  is  highly  uncertain  and  involves  complex  legal  and  scientific  questions.  We 
cannot  be  certain  that  our  patents  and  patent  applications,  including  our  own  and  those  that  we  have  rights  through  licenses  from  third  parties,  will 
adequately protect our intellectual property. Our success in protecting our intellectual property depends significantly on our ability to: 

•

•

•

•

•

obtain and maintain U.S. and foreign patents, that are meaningful to our products, including defending those patents against adverse claims; 

secure patent term extension for the patents covering our approved products; 

protect trade secrets; 

operate without infringing the proprietary rights of others; and,

prevent others from infringing our proprietary rights. 

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We may not be able to obtain issued patents relating to our technology or product candidates. Even if issued, patents may inadvertently lapse or be 
challenged, narrowed, invalidated, or circumvented, which could limit our ability to stop competitors from marketing similar products or limit the duration 
of patent protection we may have for our product candidates. Further, patents may lapse prior to the regulatory approval of the underlying product in one or 
more territories. In the past, we have abandoned the prosecution and/or maintenance of patent applications related to patent families in the ordinary course 
of business. In the future, we may choose to abandon such prosecution and/or maintenance in a similar fashion. If these patent rights are later determined to 
be valuable or necessary to our business, our competitive position may be adversely affected. Changes in patent laws or administrative patent office rules or 
changes in interpretations of patent laws in the United States and in other countries may diminish the value of our intellectual property or narrow the scope 
of our patent protection, or result in costly defensive measures. 

Patent  and  other  intellectual  property  laws  outside  the  United  States  are  even  more  uncertain  than  in  the  United  States  and  are  continually 
undergoing review and revisions in many countries. Further, the laws of some foreign countries may not protect our intellectual property rights to the same 
extent as the laws of the United States. For example, certain countries do not grant patent claims that are directed to business methods and processes. In 
addition, we may have to participate in additional opposition proceedings, like the proceedings described above, to determine the validity of our foreign 
patents or our competitors’ foreign patents, which could result in substantial costs and diversion of our efforts.

Our collaborative partners and licensors may not adequately protect our intellectual property rights. These third parties may have the first right to 
maintain or defend intellectual property rights in which we have an interest and, although we may have the right to assume the maintenance and defense of 
such intellectual property rights if these third parties do not do so, our ability to maintain and defend such intellectual property rights may be compromised 
by the acts or omissions of these third parties. 

The  cost  of  litigation  to  uphold  the  validity  of  patents,  once  obtained,  to  prevent  infringement  or  to  otherwise  protect  or  enforce  our  proprietary 
rights  could  be  substantial  and,  from  time  to  time,  our  patents  are  subject  to  patent  office  proceedings.  Some  of  our  competitors  may  be  better  able  to 
sustain the costs of complex patent litigation because they may have substantially greater financial resources. Intellectual property lawsuits are expensive 
and unpredictable and would consume management’s time and attention and other resources, even if the outcome were successful. In addition, there is a 
risk that a court would decide that our patents are not valid and that we do not have the right to stop the other party from using the inventions covered by or 
incorporating  them.  There  is  also  a  risk  that,  even  if  the  validity  of  a  patent  were  upheld,  a  court  would  refuse  to  stop  the  other  party  from  using  the 
invention(s), including on the grounds that its activities do not infringe the patent. If any of these events were to occur, our business, financial condition and 
operating results could be materially and adversely affected. 

In addition to patent litigation, we may be a party to adversarial proceedings before the Patent Trial and Appeal Board (PTAB) of the USPTO, or the 
Opposition  Division  of  the  European  Patent  Office  (EPO).  Potential  proceedings  before  the  PTAB  include  inter  partes  review  proceedings,  post-grant 
review proceedings and interference proceedings. Depending on our level of success at the PTAB and Opposition Division of the EPO, these proceedings 
could adversely impact our intellectual property rights with respect to our products and technology. 

In addition, the U.S. Supreme Court has ruled on several patent cases in recent years, either narrowing the scope of patent protection available in 
certain circumstances or weakening the rights of patent owners in certain situations. This combination of events has created uncertainty with respect to the 
value of patents, once obtained, and with regard to our ability to obtain patents in the future. 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 that we might obtain in the future. Patent and intellectual property laws outside of the United States may also 
change and be uncertain.

Our patents, once obtained, also may not afford us protection against competitors with similar technology. Because patent applications in the United 
States and many foreign jurisdictions are typically not published until eighteen months after filing, or in some cases not at all, and because publications of 
discoveries in the scientific literature often lag behind actual discoveries, neither we nor our licensors can be certain that others have not filed or maintained 
patent applications for technology used by us or covered by our pending patent applications without our being aware of these applications.

We also will rely on current and future trademarks to establish and maintain recognized brands, including APTEVO THERAPEUTICS, APTEVO 

BIOTHERAPEUTICS, APTEVO RESEARCH AND DEVELOPMENT, the 

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Aptevo logo, ADAPTIR, and ADAPTIR-FLEX in relevant jurisdictions. If we fail to acquire and protect such trademarks, our ability to market and sell our 
products, if approved for marketing, will be harmed. In addition, our current and future trademarks may be challenged, infringed, circumvented, declared 
generic, lapsed or determined to be infringing on or dilutive of other marks and we may not be able to protect our rights in these trademarks, which we need
in order to build name recognition. Any of the foregoing could have a material and adverse effect on our business, financial condition and operating results.

If approved, our products regulated as biologics may face competition from biosimilars approved through an abbreviated regulatory pathway. 

The Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010, or collectively the ACA, 
includes  a  subtitle  called  the  Biologics  Price  Competition  and  Innovation  Act  of  2009,  or  BPCIA,  which  created  an  abbreviated  approval  pathway  for 
biological products that are biosimilar to or interchangeable with an FDA-licensed reference biological product. Under the BPCIA, an application for a 
biosimilar  product  may  not  be  submitted  to  the  FDA  until  four  years  following  the  date  that  the  reference  product  was  first  licensed  by  the  FDA.  In 
addition, the approval of a biosimilar product may not be made effective by the FDA until 12 years from the date on which the reference product was first 
licensed. During this 12-year period of exclusivity, another company may still market a competing version of the reference product if the FDA approves a 
BLA for the competing product containing the sponsor’s own preclinical data and data from adequate and well-controlled clinical trials to demonstrate the 
safety, purity, and potency of the other company’s product. The law is complex and is still being interpreted and implemented by the FDA. As a result, its 
ultimate impact, implementation, and meaning are subject to uncertainty. We believe that any of our product candidates approved as a biological product 
under a BLA should qualify for the 12-year period of exclusivity. However, there is a risk that this exclusivity could be shortened due to congressional 
action or otherwise, or that the FDA will not consider our investigational medicines to be reference products for competing products, potentially creating 
the opportunity for generic competition sooner than anticipated. Other aspects of the BPCIA, some of which may impact the BPCIA exclusivity provisions, 
have also been the subject of recent litigation. 

There is a similar abbreviated pathway for the approval of biosimilar products in the EU. Reference products in the EU benefit from an eight year 
data exclusivity period during which the data included in the dossier for the reference product may not be referenced for the purposes of an abbreviated 
biosimilar application. Following the expiration of the data exclusivity period, there is an additional two year period of market exclusivity during which a 
biosimilar marketing authorization application can be submitted, and the innovator’s data may be referenced, but no product can be placed on the market 
until the expiration of such period. The overall 10-year period can be extended to a maximum of 11 years in certain circumstances. As in the U.S., there is 
no  guarantee  that  a  product  will  qualify  for  the  prescribed  period  of  exclusivity  and,  even  if  a  product  does  qualify,  another  company  may  market  a
competing  version  of  the  reference  product  if  such  company  obtained  a  marketing  authorization  with  a  complete  independent  data  package  of 
pharmaceutical tests, preclinical tests and clinical trials.

Moreover,  the  extent  to  which  a  biosimilar,  once  licensed,  will  be  substituted  for  any  one  of  our  reference  products  in  a  way  that  is  similar  to 
traditional generic substitution for non-biological products, and will depend on a number of marketplace and regulatory factors that are still developing. If 
competitors  are  able  to  obtain  marketing  approval  for  biosimilars  referencing  any  of  our  products,  if  approved,  our  products  may  become  subject  to 
competition from such biosimilars, which would impair our ability to successfully commercialize and generate revenues from sales of such products.

Third parties may choose to file patent infringement claims against us. 

Our development and commercialization activities, as well as any product candidates or products resulting from these activities, may infringe or be 
claimed to infringe patents and other intellectual property rights of third parties under which we do not hold sufficient licenses or other rights. Third parties 
may  be  successful  in  obtaining  patent  protection  for  technologies  that  cover  development  and  commercialization  activities  in  which  we  are  already 
engaged.  These  third  parties  may  have  substantially  greater  financial  resources  than  us  and  could  bring  claims  against  us  that  could  cause  us  to  incur 
substantial expenses to defend against these claims and, if successful against us, could cause us to pay substantial damages. If a patent infringement or 
other similar suit were brought against us, we could be forced to stop or delay development, manufacturing or sales of the product or product candidate that 
is the subject of the suit. Intellectual property litigation in the biotechnology industry is common, and we expect this trend to continue. 

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As a result of patent infringement or other similar claims, or to avoid potential claims, we may choose or be required to seek a license from the third 
party and be required to pay license fees or royalties or both. These licenses may not be available on acceptable terms, or at all. Even if we were able to 
obtain a license, the rights may be non-exclusive, which could result in our competitors gaining access to the same intellectual property. Ultimately, we 
could be prevented from commercializing a product, or be forced to cease some aspect of our business operations, if, as a result of actual or threatened 
patent infringement claims, we are unable to enter into licenses on acceptable terms, if at all, or if an injunction is granted against us, which could harm our 
business significantly. 

There  has  been  substantial  litigation  and  other  proceedings  regarding  patent  and  other  intellectual  property  rights  in  the  pharmaceutical  and 
biotechnology industries. In addition to infringement claims against us, we may become a party to other patent litigation and other adversarial proceedings 
such as proceedings before the Patent Trial Appeals Board and opposition proceedings in the European Patent Office, regarding intellectual property rights 
that could impact our products and technology. 

Patent litigation and other proceedings may also absorb significant management time. The cost to us of any patent litigation or other proceeding, 
even  if  resolved  in  our  favor,  could  be  substantial.  Some  of  our  competitors  may  be  able  to  sustain  the  costs  of  such  litigation  or  proceedings  more 
effectively  than  we  can  because  of  their  substantially  greater  financial  resources.  Uncertainties  resulting  from  the  initiation  and  continuation  of  patent 
litigation or other proceedings could have a material adverse effect on our ability to compete in the marketplace. Patent litigation and other proceedings 
may also absorb significant management time. 

Our Aptevo trademarks may be opposed which could have a material and adverse effect on our business. 

We have an application pending that covers the APTEVO THERAPEUTICS trademark and received a notice of allowance from the USPTO for the 
APTEVO  BIOTHERAPEUTICS  and  APTEVO  RESEARCH  AND  DEVELOPMENT  trademarks  in  August  2022.  We  refer  to  these  trademarks  as  our 
house  marks.  If  a  third  party  opposes  any  of  these  house  marks  and  we  are  unable  to  reach  settlement  prior  to  the  commencement  of  an  opposition 
proceeding, we may incur significant expense in the course of participating in the opposition process, which can be expensive and lengthy. Any settlement 
with a third party may result in our agreeing to be subject to restrictions on our use of the relevant house mark. In addition, if we are unsuccessful in an 
opposition against a house mark, we would lose the ability to obtain trademark registration for one or more uses of the relevant mark both in the United 
States and in other territories which could have a material and adverse effect on our business. 

We may be subject to claims that our employees have wrongfully used or disclosed alleged trade secrets of their former employers. 

As is common in the biotechnology and pharmaceutical industry, we employ individuals who were previously employed at other biotechnology or 
pharmaceutical companies, including our competitors or potential competitors. We may be subject to claims that these employees 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. Even if we are successful in defending against these claims, litigation could result in substantial costs and be a distraction to management. 

Failure to comply with our obligations in our intellectual property licenses with third parties, could result in loss of license rights or other damages. 

We are a party to a number of license agreements and expect to enter into additional license agreements in the future. Our existing licenses impose, 
and we expect future licenses will impose, various diligence, milestone payment, royalty, insurance, and other obligations on us. If we fail to comply with 
these obligations, the licensor may have the right to terminate the license in whole or in part, terminate the exclusive nature of the license and/or sue us for 
breach, which could cause us to not be able to market any product that is covered by the licensed patents and may be subject to damages. 

If we are unable to protect the confidentiality of our proprietary information and know-how, the value of our technology and product candidates could 
be adversely affected. 

In  addition  to  patented  technology,  we  rely  upon  unpatented  proprietary  technology,  information  processes  and  know-how.  These  types  of  trade 
secrets can be difficult to protect. We seek to protect this confidential information, in part, through agreements with our employees, consultants and third 
parties as well as confidentiality policies and 

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audits, although these may not be successful in protecting our trade secrets and confidential information. These agreements may be breached, and we may 
not have adequate remedies for any such breach. In addition, our trade secrets may otherwise become known, including through a potential cyber security 
breach, or may be independently developed by competitors. If we are unable to protect the confidentiality of our proprietary information and know-how, 
competitors may be able to use this information to develop products that compete with our products, which could adversely impact our business. 

Risks Related to Collaborations and Other Transactions 

We may not be successful in establishing and maintaining collaborations and entering into other transactions that leverage our capabilities in pursuit 
of developing and commercializing our product candidates and any such collaborations and transactions, if any, could result in financial results that 
differ from market expectations. 

For each of our product candidates we plan to evaluate the merits of entering into collaboration arrangements with third parties, including leading 
biotechnology companies or non-governmental organizations. In July 2017, we entered into a collaboration agreement with Alligator pursuant to which 
Aptevo  R&D  and  Alligator  have  been  collaboratively  developing  ALG.APV-527,  a  lead  bispecific  antibody  candidate  simultaneously  targeting  4-1BB 
(CD137), a member of the TNFR superfamily of a co-stimulatory receptor found on activated T cells, and 5T4, a tumor antigen widely overexpressed in a 
number  of  different  types  of  cancer.  We  intend  to  pursue  collaboration  arrangements  with  third  parties  that  have  particular  technology,  expertise  or 
resources  for  the  development  or  commercialization  of  our  product  candidates  or  for  accessing  particular  markets.  We  face,  and  will  continue  to  face, 
significant competition in seeking appropriate partners for our product candidates. If we are unable to identify partners whose capabilities complement and 
integrate well with ours and reach collaboration arrangements with such partners on a timely basis, on acceptable terms or at all, or if the arrangements we 
establish  are  unproductive  for  us,  we  may  fail  to  meet  our  business  objectives  for  the  particular  product  candidate.  Our  ability  to  enter  into  such 
arrangements with respect to products in development that are subject to licenses may be limited by the terms of those licenses.

Our collaboration agreement with Alligator, or any collaboration agreement we may consider entering into, may not be successful and the success of 
our collaboration arrangements will depend heavily on the efforts and activities of our collaborative partners. It is likely that our collaborative partners will 
have significant discretion in determining the efforts and resources that they will apply to these collaborations. 

The risks that we are subject to in any of our collaborations include, among others: 

•

•

•

•

our collaborative partners may not commit adequate resources to the development, marketing and distribution of any collaboration products, 
limiting our potential revenues from these products; 

our collaborative partners may experience financial difficulties and may therefore be unable to meet their commitments to us; 

our  collaborative  partners  may  pursue  a  competing  product  candidate  developed  either  independently  or  in  collaboration  with  others, 
including our competitors; and,

our collaborative partners may terminate our relationship. 

The failure of any of our current or future collaboration partners to perform as expected could place us at a competitive disadvantage and adversely 
affect us financially, including delay and increased costs of development, loss of market opportunities, lower than expected revenues and impairment of the 
value  of  the  related  product  candidate.  A  loss  of  our  collaboration  agreement  with  Alligator  would  result  in  a  burden  of  locating  a  replacement  partner 
under  potentially  less  favorable  terms  at  an  additional  cost.  Collaborations  are  a  critical  part  of  our  business  strategy,  and  any  inability  on  our  part  to 
establish  and  successfully  maintain  such  arrangements  on  terms  favorable  to  us  or  to  work  successfully  with  our  collaborative  partners  could  have  an 
adverse  effect  on  our  operations  and  financial  performance.  Due  to  the  ongoing  COVID-19  pandemic  and  macroeconomic  factors,  we  may  experience 
delays in opportunities to develop our product candidates, due to financial and other impacts on potential partners. 

In  addition,  in  the  normal  course  of  business,  the  Company  engages  in  discussions  with  third  parties  regarding  possible  strategic  alliances,  joint 
ventures, acquisitions, divestitures and business combinations to further develop or commercialize our product candidates. As a result of such transactions, 
our  financial  results  may  differ  from  our  own  or  the  investment  community's  expectations  in  a  given  fiscal  quarter  or  over  the  long  term.  Furthermore, 
efforts to engage in such transactions require varying levels of management resources, which may divert the Company’s 

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attention from other business operations. Any transactions we engage in could result in our financial results differing materially from market expectations.

In  connection  with  our  separation  from  Emergent,  we  and  Emergent  agreed  to  indemnify  the  other  party  for  certain  liabilities.  The  Emergent 
indemnity  may  not  be  sufficient  to  hold  us  harmless  from  the  full  amount  of  liabilities  for  which  Emergent  will  be  allocated  responsibility,  and 
Emergent may not be able to satisfy its indemnification obligations in the future. 

Pursuant to the separation agreement and certain other agreements with Emergent, Emergent has agreed to indemnify us for certain liabilities, and 
we  agreed  to  indemnify  Emergent  for  certain  liabilities.  Indemnities  that  we  may  be  required  to  provide  Emergent  are  not  subject  to  any  cap,  may  be 
significant  and  could  negatively  impact  our  business,  particularly  indemnities  relating  to  our  actions  that  could  impact  the  tax-free  nature  of  the 
distribution. Third parties could also seek to hold us responsible for any of the liabilities that Emergent has agreed to retain. Any amounts we are required 
to pay pursuant to these indemnification obligations and other liabilities could require us to divert cash that would otherwise have been used in furtherance
of our operating business. Further, the indemnity from Emergent may not be sufficient to protect us against the full amount of such liabilities, and Emergent 
may not be able to fully satisfy its indemnification obligations. Moreover, even if we ultimately succeed in recovering from Emergent any amounts for 
which we are held liable, we may be temporarily required to bear these losses ourselves. Each of these risks could negatively affect our business, results of 
operations and financial condition. 

Risks Related to Our Common Stock and General Risks

Our stock price may be volatile.

Our stock price has fluctuated in the past and is likely to be volatile in the future. Between August 1, 2016 and December 31, 2022, the reported 
closing  price  of  our  common  stock  has  fluctuated  between  $2.00  and  $83.16  per  share  (as  adjusted  to  reflect  our  1-for-14  reverse  stock  split  of  our 
outstanding common stock that was effective on March 26, 2020). The stock market in general, and the market for biotechnology companies in particular, 
have experienced extreme volatility that has often been unrelated to the operating performance of particular companies. In particular, the stock market has 
experienced  extreme  volatility  in  recent  months  as  a  result  of  the  geopolitical  climate,  including  the  war  in  Ukraine,  and  macroeconomic  conditions, 
including  rising  and  fluctuating  inflation  and  interest  rates  and  reduced  consumer  confidence.  The  market  price  of  our  common  stock  may  fluctuate 
significantly due to a number of factors, some of which may be beyond our control or unrelated to our operations, including, among others: 

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changes in earnings estimated by securities analysts or management, or our ability to meet those estimates; 

investor perceptions or negative announcements by our competitors, suppliers, or partners regarding their own performance; 

the success of competitive products or technologies; 

the timing, expenses, and results of clinical and preclinical trials of our product candidates; 

announcements regarding clinical trial results and product introductions by us or our competitors; 

announcements of acquisitions, collaborations, financings or other transactions by us or our competitors; 

public concern as to the safety of our product candidates; 

termination or delay of a development program; 

the recruitment or departure of key personnel; 

estimated or actual sales of IXINITY by Medexus;

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whether and to what extent future milestone payments are received under our Amendment to Royalty Purchase Agreement with HCR; 

actual or anticipated variations in our cash flows or results of operations; 

the operating and stock price performance of comparable companies; 

the impact of the ongoing COVID-19 pandemic or similar global health challenges; 

general industry conditions and domestic and global financial, economic, and geopolitical instability; and,

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

Biotechnology  company  stock  prices  have  declined  significantly  in  certain  instances  where  companies  have  failed  to  obtain  FDA  or  foreign 
regulatory authority approval of a product candidate or if the timing of FDA or foreign regulatory authority approval is delayed. If the FDA’s or any foreign 
regulatory authority’s response to any application for approval is delayed or not favorable for any of our product candidates, our stock price could decline 
significantly. 

In addition, when the market price of a company’s common stock drops significantly, stockholders often institute securities class action lawsuits 
against the company. A lawsuit against us could cause us to incur substantial costs and could divert the time and attention of our management and other 
resources. 

In  the  event  that  coverage  under  our  directors’  and  officers’  liability  insurance  is  reduced  or  terminated  as  a  result  of  an  ownership  change  or 
otherwise, our indemnification obligations and limitations of our directors’ and officers’ liability insurance may have a material adverse effect on our 
financial condition, results of operations and cash flows.

Under Delaware law, our certificate of incorporation, and our by-laws and certain indemnification agreements to which we are a party, we have an 
obligation to indemnify, or we have otherwise agreed to indemnify, certain of our current and former directors and officers with respect to past, current, and
future investigations and litigation. In order to reduce the risk of expense of these obligations, we maintain directors’ and officers’ liability insurance. A 
significant change in the Company’s risk profile, such as the Tang Ownership Change, could increase the cost to us of our directors’ and officers’ liability 
insurance  coverage  or  the  coverage  thereunder  may  be  reduced  or  terminated  in  full.  In  the  event  that  the  coverage  under  our  directors’  and  officers’ 
liability insurance is reduced or terminated, we will be required to pay the expenses of indemnifying our current and former directors and officers in their 
defense  of  current  and  future  investigations  and  litigation,  which  expenses  may  be  significant.  The  increased  costs  to  us  of  our  directors’  and  officers’ 
liability insurance coverage, or our indemnification obligations if our directors’ and officers’ liability insurance coverage is reduced or terminated, could 
result in the diversion of our financial resources, and may have a material adverse effect on our financial condition, results of operations and cash flows.

If we do not maintain effective internal controls, we may not be able to accurately report our financial results and our business could be harmed. 

The Sarbanes-Oxley Act requires, among other things, that we assess the effectiveness of our internal control over financial reporting annually and 
the effectiveness of our disclosure controls and procedures quarterly. In particular, Section 404 of the Sarbanes-Oxley Act, or Section 404, requires us to 
perform system and process evaluation and testing of our internal control over financial reporting to allow management to report on, and our independent 
registered public accounting firm potentially to attest to, the effectiveness of our internal control over financial reporting. In the past, we were an emerging 
growth  company  and  we  currently  are  a  non-accelerated  filer  and  have  availed  ourselves  of  the  exemption  from  the  requirement  that  our  independent 
registered  public  accounting  firm  attest  to  the  effectiveness  of  our  internal  control  over  financial  reporting  under  Section  404.  If  we  cease  to  be  a  non-
accelerated  filer  and  our  independent  registered  public  accounting  firm  is  required  to  undertake  an  assessment  of  our  internal  control  over  financial 
reporting,  the  cost  of  our  compliance  with  Section  404  will  correspondingly  increase.    Our  compliance  with  applicable  provisions  of  Section  404  will 
require that we incur substantial accounting expense and expend significant management time on compliance-related issues as we implement additional 
corporate  governance  practices  and  comply  with  reporting  requirements.  Moreover,  if  we  are  not  able  to  comply  with  the  requirements  of  Section  404 
applicable  to  us  in  a  timely  manner,  or  if  we  or  our  independent  registered  public  accounting  firm  identifies  deficiencies  in  our  internal  control  over 
financial reporting that are deemed to be material 

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weaknesses, the market price of our stock could decline and we could be subject to sanctions or investigations by the SEC or other regulatory authorities, 
which would require additional financial and management resources. 

Investor perceptions of our company may suffer if material weaknesses are found, and this could cause a decline in the market price of our common 
stock.  Irrespective  of  compliance  with  Section  404,  any  failure  of  our  internal  control  over  financial  reporting  could  harm  our  operating  results  and 
reputation. If we are unable to implement these requirements effectively or efficiently, it could harm our operations, financial reporting, or financial results 
and could result in an adverse opinion on our internal controls from our independent registered public accounting firm.

The public announcement of data from clinical trials or news of any developments related to our product pipeline may cause significant volatility in 
our stock price. 

The announcement of data from clinical trials by us or our collaborative partners or news of any developments related to our key pipeline product 
candidates has in the past caused and may in the future cause significant volatility in our stock price. Furthermore, the announcement of any negative or 
unexpected data or the discontinuation of development of any of our key pipeline product candidates, or any delay in our anticipated timelines for filing for 
regulatory approval, could cause our stock price to decline significantly. There can be no assurance that data from clinical trials will support a filing for 
regulatory approval or even if approved, that any of our key pipeline products will become commercially successful. 

Our  common  stock  may  be  at  risk  for  delisting  from  the  Nasdaq  Capital  Market  in  the  future  if  we  do  not  maintain  compliance  with  Nasdaq’s 
continued listing requirements. Delisting could adversely affect the liquidity of our common stock and the market price of our common stock could 
decrease.

Our common stock is currently listed on the Nasdaq Capital Market LLC (Nasdaq). Nasdaq has minimum requirements that a company must meet 
in order to remain listed on Nasdaq, including corporate governance standards and a requirement that we maintain a minimum closing bid price of $1.00 
per share.

On April 1, 2022, the Company received a letter from Nasdaq indicating that it was not in compliance with Nasdaq Listing Rule 5550(b)(1), which 
requires companies listed on Nasdaq to maintain a minimum of $2,500,000 in stockholders’ equity for continued listing. On its annual report for the year 
ended December 31, 2021, the Company reported stockholders’ equity of $1,216,000, and, as a result, did not satisfy Listing Rule 5550(b)(1). In the second 
quarter of 2022, the Company regained compliance with the Nasdaq Listing Rule.

In  the  future,  if  we  fail  to  maintain  such  minimum  requirements  and  a  final  determination  is  made  by  Nasdaq  that  our  common  stock  must  be 
delisted, the liquidity of our common stock would be adversely affected and the market price of our common stock could decrease. In addition, if delisted, 
we would no longer be subject to Nasdaq rules, including rules requiring us to have a certain number of independent directors and to meet other corporate 
governance standards. Our failure to be listed on Nasdaq or another established securities market would have a material adverse effect on the value of your 
investment in us.

If our common stock is not listed on Nasdaq or another national exchange, the trading price of our common stock is below $5.00 per share and we 
have net tangible assets of $6,000,000 or less, the open-market trading of our common stock will be subject to the “penny stock” rules promulgated under 
the Securities Exchange Act of 1934, as amended. If our shares become subject to the “penny stock” rules, broker-dealers may find it difficult to effectuate 
customer transactions and trading activity in our securities may be adversely affected. 

Your percentage of ownership in Aptevo may be diluted in the future. 

In the future, your percentage ownership in Aptevo may be diluted because of equity issuances or securities convertible into equity for acquisitions, 
capital market transactions or otherwise, including, but not limited to, equity issuances under our existing Purchase Agreement with Lincoln Park, under 
our  Equity  Distribution  Agreement  with  Piper  Sandler,  under  our  Rights  Plan  with  Broadridge  Corporate  Issuer  Solutions,  Inc.,  upon  the  exercise  of 
warrants  issued  in  connection  with  our  March  2019  public  offering,  and  equity  awards  to  our  directors,  officers  and  employees.  Our  employees  have 
options to purchase shares of our common stock and from time to time, we expect to issue additional options, restricted stock units, or other stock-based 
awards to our employees under our employee benefits plans. 

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In addition, our restated certificate of incorporation authorizes us to issue, without the approval of our stockholders, one or more classes or series of 
preferred stock having such designation, powers, preferences and relative, participating, optional and other special rights, including preferences over our 
common stock respecting dividends and distributions, as our board of directors generally may determine. The terms of one or more classes or series of 
preferred stock could dilute the voting power or reduce the value of our common stock. For example, we could grant the holders of preferred stock the right 
to  elect  some  number  of  our  directors  in  all  events  or  on  the  happening  of  specified  events  or  the  right  to  veto  specified  transactions.  Similarly,  the 
repurchase  or  redemption  rights  or  liquidation  preferences  we  could  assign  to  holders  of  preferred  stock  could  affect  the  residual  value  of  the  common 
stock. 

Provisions under Delaware law and in our restated certificate of incorporation, amended and restated by-laws and rights agreement may discourage 
acquisition proposals, delay a change in control or prevent transactions that stockholders may consider favorable. 

Certain provisions in our restated certificate of incorporation and amended and restated by-laws, and under Delaware law, may discourage, delay, or 
prevent  a  merger,  acquisition  or  other  changes  in  control  that  stockholders  may  consider  favorable,  including  transactions  in  which  stockholders  might 
otherwise  receive  a  premium  for  their  shares.  These  provisions  may  also  prevent  or  frustrate  attempts  by  our  stockholders  to  replace  or  remove  our 
incumbent directors and management. 

These provisions include: 

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the classification of our directors; 

limitations on the removal of directors; 

limitations on filling vacancies on the board; 

advance notice requirements for stockholder nominations of candidates for election to the Board of Directors and other proposals; 

the inability of stockholders to act by written consent; 

the inability of stockholders to call special meetings; and,

the ability of our Board of Directors to designate the terms of and issue a new series of preferred stock without stockholder approval. 

The affirmative vote of holders of our capital stock representing at least 75% of the voting power of all outstanding stock entitled to vote is required 
to amend or repeal the above provisions of our certificate of incorporation. The affirmative vote of either a majority of the directors present at a meeting of 
our Board of Directors or holders of our capital stock representing at least 75% of the voting power of all outstanding stock entitled to vote is required to 
amend or repeal our by-laws. 

In  addition,  Section  203  of  the  General  Corporation  Law  of  Delaware  prohibits  a  corporation  from  engaging  in  a  business  combination  with  an 
interested stockholder, generally a person which, together with its affiliates, owns or within the last three years has owned 15% or more of the corporation’s 
voting  stock,  for  a  period  of  three  years  after  the  date  of  the  transaction  in  which  the  person  became  an  interested  stockholder,  unless  the  business 
combination is approved in a prescribed manner. Accordingly, Section 203 may discourage, delay or prevent a change in control of us. Tang is an interested 
stockholder for purposes of Section 203.

Moreover,  we  currently  have  a  short-term  stockholder  rights  agreement  in  effect.  This  rights  agreement  was  amended  on  November  4,  2021  to 
extend  the  expiration  date  of  such  agreement  from  November  8,  2021  to  November  5,  2022  and  further  amended  on  November  4,  2022  to  extend  the 
expiration of such agreement to November 4, 2023. This rights agreement could render more difficult, or discourage a merger, tender offer, or assumption 
of control of the Company that is not approved by our Board that some stockholders may consider favorable. The rights agreement, however, should not 
interfere with any merger, tender or exchange offer or other business combination approved by our Board. Nor does the rights agreement prevent our Board 
from considering any offer that it considers to be in the best interest of our stockholders.

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Our by-laws include a forum selection clause, which may impact your ability to bring actions against us.

Subject to certain limitations, our bylaws provide that, unless we consent in writing to the selection of an alternative forum, the Court of Chancery in 
the  State  of  Delaware  will  be  the  sole  and  exclusive  forum  for  any  stockholder  (including  a  beneficial  owner)  to  bring:  (a)  any  derivative  action  or 
proceeding brought on our behalf; (b) any action asserting a claim of breach of fiduciary duty owed by any of our directors, officers or other employees or 
our stockholders; (c) any action asserting a claim arising pursuant to any provision of the DGCL or our certificate of incorporation or by-laws; or (d) any 
action asserting a claim governed by the internal affairs doctrine. In addition, our bylaws provide that unless we consent in writing to the selection of an 
alternative forum, the federal district courts of the United States will be the exclusive forum for resolving any complaint asserting a cause of action arising 
under the federal securities laws of the United States against us, our officers, directors, employees or underwriters. These limitations on the forum in which 
stockholders may initiate action against us could create costs, inconvenience or otherwise adversely affect your ability to seek legal redress.

Section  22  of  the  Securities  Act  creates  concurrent  jurisdiction  for  federal  and  state  courts  over  all  suits  brought  to  enforce  any  duty  or  liability 
created by the Securities Act or the rules and regulations thereunder. As a result, a court may decline to enforce these exclusive forum provisions with 
respect  to  suits  brought  to  enforce  any  duty  or  liability  created  by  the  Securities  Act  or  any  other  claim  for  which  the  federal  and  state  courts  have 
concurrent  jurisdiction,  and  our  stockholders  may  not  be  deemed  to  have  waived  our  compliance  with  the  federal  securities  laws  and  the  rules  and 
regulations thereunder. If a court were to find the exclusive forum provisions to be inapplicable or unenforceable in an action, we may incur additional 
costs associated with resolving such action in other jurisdictions.

We may be subject to periodic litigation, which could result in losses or unexpected expenditure of time and resources. 

From time to time, we may be called upon to defend ourselves against lawsuits relating to our business. Any litigation, regardless of its merits, could 
result in substantial costs and a diversion of management’s attention and resources that are needed to successfully run our business. Due to the inherent 
uncertainties of litigation, we cannot accurately predict the ultimate outcome of any such proceedings. An unfavorable outcome in any such proceedings 
could  have  an  adverse  impact  on  our  business,  financial  condition  and  results  of  operations.  If  our  stock  price  is  volatile,  we  may  become  involved  in 
securities class action lawsuits in the future. 

Our failure to comply with data protection laws and regulations could lead to government enforcement actions and significant penalties against us, and 
adversely impact our operating results. 

EU  Member  States,  Switzerland  and  other  countries  have  adopted  data  protection  laws  and  regulations,  which  impose  significant  compliance 
obligations. For example, European Union, or EU, member states and other foreign jurisdictions, including Switzerland, have adopted data protection laws 
and regulations which impose significant compliance obligations. Moreover, the collection and use of personal health data in the EU is now governed under 
the  EU  General  Data  Protection  Regulation,  or  the  GDPR,  effective  in  May  2018.  The  GDPR,  which  is  wide-ranging  in  scope,  imposed  several 
requirements  relating  to  the  consent  of  the  individuals  to  whom  the  personal  data  relates,  the  information  provided  to  the  individuals,  the  security  and 
confidentiality of the personal data, data breach notification and the use of third-party processors in connection with the processing of personal data. The 
GDPR also imposes strict rules on the transfer of personal data out of the EU to the U.S., provides an enforcement authority and imposes large penalties for 
noncompliance,  including  the  potential  for  fines  of  up  to  €20  million  or  4%  of  the  annual  global  revenues  of  the  noncompliant  company,  whichever  is 
greater. The GDPR requirements apply not only to third-party transactions, but also to transfers of information between us and our subsidiaries, including 
employee information. The GDPR increases our responsibility and liability in relation to personal data that we process, including in clinical trials, and we 
may be required to put in place additional mechanisms to ensure compliance with the GDPR, which could divert management’s attention and increase our 
cost of doing business. In addition, new regulation or legislative actions regarding data privacy and security (together with applicable industry standards) 
may increase our costs of doing business. However, despite our ongoing efforts, we may not be successful either due to various factors within our control, 
such as limited financial or human resources, or other factors outside our control. It is also possible that local data protection authorities may have different 
interpretations of the GDPR, leading to potential inconsistencies amongst various EU member states. Any failure or alleged failure (including as a result of 
deficiencies  in  our  policies,  procedures,  or  measures  relating  to  privacy,  data  security,  marketing,  or  communications)  by  us  to  comply  with  laws, 
regulations,  policies,  legal  or  contractual  obligations,  industry  standards,  or  regulatory  guidance  relating  to  privacy  or  data  security,  may  result  in 
governmental investigations and enforcement actions, litigation, fines and penalties or 

59

 
adverse publicity. In addition, we expect that there will continue to be new proposed laws, regulations and industry standards relating to privacy and data 
protection in the United States, the EU and other jurisdictions, such as the California Consumer Privacy Act of 2018, which has been characterized as the 
first “GDPR-like” privacy statute to be enacted in the United States, and we cannot determine the impact such future laws, regulations and standards may 
have on our business. 

If we experience a significant disruption in our information technology systems or breaches of data security, including due to a cyber-security incident, 
our business could be adversely affected.

We  rely  on  information  technology  systems  to  keep  financial  records,  capture  laboratory  data,  maintain  clinical  trial  data  and  corporate  records, 
communicate  with  staff  and  external  parties  and  operate  other  critical  functions.  Our  information  technology  systems  are  potentially  vulnerable  to 
disruption due to breakdown, malicious intrusion and computer viruses or other disruptive events including but not limited to natural disaster. The impact 
of the ongoing COVID-19 pandemic also poses an increased security risk, due to the remote working environment. 

We  also  face  the  challenge  of  promptly  detecting  and  remediating  any  cyber-security  breaches.    Our  information  technology  systems  security 
measures are focused on the prevention, detection and remediation of damage from computer viruses, unauthorized access, cyber-attack and other similar 
disruptions.  However,  our  information  technology  systems  protection  measures  may  not  be  successful  in  preventing  unauthorized  access,  intrusion  and 
damage.  Threats  to  our  systems  can  derive  from  human  error,  fraud  or  malice  on  the  part  of  employees  or  third  parties,  including  computer  hackers, 
encryption by ransomware, or may result from technological failure.  

If we were to experience a prolonged system disruption in our information technology systems or those of certain of our vendors, it could delay or 
negatively  impact  our  development  and  commercialization  of  our  product  candidates,  which  could  adversely  impact  our  business.  If  operations  at  our 
facilities were disrupted, it may cause a material disruption in our business if we are not capable of restoring function on an acceptable timeframe. 

In addition, as discussed above, our information technology systems are potentially vulnerable to data security breaches—whether by employees or 
others, intentionally or unintentionally—which may expose sensitive or personal data to unauthorized persons. Such data security breaches could lead to 
the  loss  of  trade  secrets  or  other  intellectual  property,  or  could  lead  to  the  public  exposure  of  personal  information  (including  sensitive  personal 
information) of our employees, customers and others, any of which could have a material adverse effect on our business, financial condition and results of 
operations. 

Moreover, a security breach or privacy violation that leads to destruction, loss, alteration, unauthorized use or access, disclosure or modification of, 
personally  identifiable  information  or  personal  data,  could  harm  our  reputation,  compel  us  to  comply  with  federal,  state  and/or  international  breach 
notification laws, subject us to mandatory corrective or regulatory action, require us to verify the correctness of database contents and otherwise subject us 
to  liability  under  laws  and  regulations  that  protect  personal  data,  including  the  GDPR  and  the  California  Consumer  Privacy  Act  of  2018,  which  could 
disrupt  our  business,  result  in  increased  costs  or  loss,  and/or  result  in  significant  legal  and  financial  exposure.  In  addition,  a  data  security  breach  could 
result in loss of clinical trial data or damage to the integrity of that data. 

If we are unable to implement and maintain adequate organizational and technical measures to prevent such security breaches or privacy violations, 
or  to  respond  adequately  in  the  event  of  a  breach,  our  operations  could  be  disrupted,  and  we  may  suffer  loss  of  reputation,  problems  with  regulatory 
authorities, financial loss and other negative consequences. In addition, these breaches and other inappropriate access can be difficult to detect, and any 
delay in identifying them may lead to increased harm of the type described above.

If  a  breach  of  our  information  technology  systems  occurs,  we  may  incur  additional  costs  related  to  repairing  or  rebuilding  our  internal  systems, 
complying with breach notification laws, defending legal claims or proceedings, responding to regulatory actions, incurring penalties, and paying damages. 
Moreover, it may be determined that as a result of such a breach there was a material weakness or significant deficiency in our internal controls or other 
failure  of  our  control  environment.    If  such  a  breach  occurs,  it  may  have  a  material  adverse  effect  on  our  business,  results  of  operations,  and  financial 
condition, and it may also negatively impact our reputation.

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A significant portion of our shares may be sold into the market at any time which could depress our stock price. 

If our stockholders sell a substantial number of shares of our common stock in the public market, our market price could decline. In connection with 
the transaction with Lincoln Park, we registered under the Securities Act of 1933, as amended, the resale of shares of common stock that have been and 
may be issued under the Purchase Agreement with Lincoln Park. Any such sales or perception that such sales may occur, whether under the Lincoln Park 
Purchase Agreement or otherwise, could decrease the market price of our common stock.

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Item 1B. Unresolved Staff Comments.

None. 

Item 2. Properties.

We lease our headquarters office and laboratory space in Seattle, Washington. The Seattle facility is approximately 48,000 square feet and the lease 

for the Seattle facility expires in April 2030. 

Item 3. Legal Proceedings.

We  may  from  time  to  time  be  named  as  a  party  to  legal  claims,  actions  and  complaints,  including  matters  involving  employment  claims,  our 
intellectual property or other third party claims. Our management believes that there are currently no claims or actions pending against us, the ultimate 
disposition of which could have a material adverse effect on our results of operations, financial condition, or cash flows. 

Item 4. Mine Safety Disclosures.

Not applicable.

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PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.

Our common stock has been listed on The Nasdaq Capital Market under the symbol “APVO” since October 18, 2019, and was listed on The Nasdaq 

Global Market from August 1, 2016 to October 17, 2019. 

Holders of Common Stock 

As of March 30, 2023, we had 7,239,471 shares of common stock outstanding held by 115 holders of record of our common stock. The number of 
record  holders  does  not  include  stockholders  who  are  beneficial  owners  but  whose  shares  are  held  in  “street  name”  by  brokers  and  other  nominees  or 
persons, partnerships, associates, corporations, or other entities identified in security position listings maintained by depositories. We have never declared 
or paid any cash dividends and do not anticipate declaring or paying cash dividends for the foreseeable future.

Dividend Policy

We have never declared or paid any cash dividends on our common stock or any other securities. We anticipate that we will retain all available funds 
and any future earnings, if any, for use in the operation of our business and do not anticipate paying cash dividends in the foreseeable future. In addition, 
future debt instruments may materially restrict our ability to pay dividends on our common stock. Payment of future cash dividends, if any, will be at the 
discretion of the board of directors after taking into account various factors, including our financial condition, operating results, current and anticipated 
cash needs, the requirements of then-existing debt instruments and other factors the board of directors deems relevant.

Recent Sales of Unregistered Securities

We did not sell any unregistered securities during the year ended December 31, 2022. 

Issuer Purchases of Equity Securities

We did not repurchase any shares of our common stock during the year ended December 31, 2022.

Item 6. [Reserved]

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

You should read the following Management’s Discussion and Analysis of Financial Condition and Results of Operations (this MD&A) together with 
the consolidated financial statements and the related notes thereto included in this Annual Report on Form 10-K. This MD&A contains forward-looking 
statements that are subject to risks and uncertainties, such as those set forth in the sections of this Annual Report on Form 10-K captioned “Cautionary 
Note Regarding Forward-Looking Statements,” “Risk Factors” and elsewhere. As a result, our actual results may differ materially from those anticipated 
in these forward-looking statements. 

Overview

We are a clinical-stage, research and development biotechnology company focused on developing novel immunotherapy candidates for the treatment of 
different forms of cancer. We have developed two versatile and enabling platform technologies for rational design of precision immune modulatory drugs. 
Our lead clinical candidates, APVO436 and ALG.APV-527 (in collaboration with Alligator), and preclinical candidates, APVO603 and APVO711, were 
developed using our ADAPTIR™ modular protein technology platform. Our preclinical candidate APVO442 was developed using our ADAPTIR-FLEX™ 
modular protein technology platform.    

The  versatile  and  robust  ADAPTIR  and  ADAPTIR-FLEX  platforms  are  designed  to  generate  monospecific,  bispecific,  and  multi-specific  antibody 
candidates capable of enhancing the human immune system against cancer cells. ADAPTIR and ADAPTIR-FLEX are both modular platforms, which gives 
us  the  flexibility  to  generate  immunotherapeutic  candidates  with  a  variety  of  mechanisms  of  action.  This  flexibility  in  design  allows  us  to  potentially 
generate  novel  therapeutic  candidates  that  may  provide  effective  strategies  against  difficult  to  treat,  as  well  as  advanced  forms  of  cancer.  We  have 
successfully  designed  and  constructed  numerous  investigational-stage  product  candidates  based  on  our  ADAPTIR  platform.  The  ADAPTIR  platform 
technology  is  designed  to  generate  monospecific  and  bispecific  immunotherapeutic  proteins  that  specifically  bind  to  one  or  more  targets,  for  example, 
bispecific  therapeutic  molecules,  which  may  have  structural  and  functional  advantages  over  monoclonal  antibodies.  The  structural  differences  of 
ADAPTIR  molecules  over  monoclonal  antibodies  allow  for  the  development  of  ADAPTIR  immunotherapeutics  that  are  designed  to  engage  immune 
effector cells and disease targets to produce signaling responses that modulate the immune system to kill tumor cells.

We believe we are skilled at candidate generation, validation, and subsequent preclinical and clinical development using the ADAPTIR platform and the 
ADAPTIR-FLEX platform to generate multi-specific candidates or other candidates to our platform capabilities. We have developed a preclinical candidate 
based on the ADAPTIR-FLEX platform which is advancing in our pipeline. We are developing our ADAPTIR and ADAPTIR-FLEX molecules using our 
protein engineering, preclinical development, process development, and clinical development capabilities.

Recent Developments

On  January  9,  2023,  we  filed  a  provisional  patent  with  the  USPTO  pertaining  to  an  anti-PD-L1  and  anti-CD40  compound,  APVO711,  with  the 
potential to fight a range of solid malignancies such as head and neck squamous cell carcinoma, melanoma, and carcinomas of the lung, gastrointestinal 
tract and colon. We initiated preclinical studies in the first quarter of 2023.

In December 2022 we announced that APVO436, in combination with venetoclax and azacitidine, demonstrated substantial clinical activity and a 

favorable safety and tolerability profile in adult venetoclax treatment naïve AML patients.  More specifically:

•

The combination of venetoclax and azacitidine with APVO436 in venetoclax treatment naïve response-evaluable patients in Cohort 2 of the 
Phase 1b study outperformed a composite benchmark across all clinical benefit categories (Benchmark Composite References:

Aldoss 2019, Maiti 2021, Morsia 2020, Garciaz 2022, Feld 2021)

64

 
  
  
 
 
 
 
 
•

•

The data, which was presented in a poster session at the 64th American Society of Hematology Annual Meeting and Exposition (ASH) in 
New Orleans, also showed that APVO436, when given in combination with venetoclax and azacitidine was observed to be generally safe and 
well tolerated.

Based on Phase 1b outcomes, we plan to initiate a Phase 2 trial in the second half of 2023 to further evaluate APVO436 in combination with 
venetoclax and azacitidine in venetoclax treatment naïve patients.

In September 2022, we received a “may proceed” notification from the U.S. Food and Drug Administration (FDA), allowing us and our partner, 
Alligator Bioscience, to initiate clinical trials evaluating the compound for the treatment of 5T4-expressing tumors in multiple solid tumor types. A first-in-
human study was initiated in the first quarter of 2023. 

•

The  first  patient  in  this  trial  was  dosed  in  February  2023.    Patient  recruitment  is  ongoing.      ALG.APV-527  targets  4-1BB  co-stimulatory 
receptor (on T lymphocytes and NK cells) and 5T4 (solid tumor antigen) and is designed to promote anti-tumor immunity. 

Results of Operations

Except as otherwise stated below, the following discussions of our results of operations reflect the results of our continuing operations, excluding the 
results  related  to  Aptevo  BioTherapeutics  LLC  (Aptevo  BioTherapeutics),  which  was  sold  in  February  2020  to  Medexus  and  has  been  separated  from 
continuing  operations  and  reflected  as  a  discontinued  operation.    See  Note  2  –  Discontinued  Operations  to  the  accompanying  consolidated  financial 
statements for additional information.

Year Ended December 31, 2022 Compared to Year Ended December 31, 2021

For the year ended December 31, 2022, we had net income of $8.0 million compared to $28.5 million net loss for the same period in 2021. As of 

December 31, 2022, we had an accumulated deficit of $206.0 million. 

Royalty Revenue

For the years ended December 31, 2022 and 2021, we recorded royalty revenue of $3.1 million and $12.3 million, respectively. Royalty revenue for 
the period covered by this report reflects revenue recorded only prior to the second quarter of 2022 due to our Amendment to Royalty Purchase Agreement 
with HCR (see Note 8). As a result of the amendment, we ceased reporting as royalty revenue, royalties paid by Pfizer to HCR related to Pfizer’s sales of 
RUXIENCE. The royalty revenue from Pfizer related to a Collaboration and License Agreement (Definitive Agreement) acquired by Aptevo as part of our 
spin-off from Emergent in 2016. The agreement was originally executed by Trubion Pharmaceuticals, which was subsequently acquired by Emergent, and 
Wyeth, a wholly owned subsidiary of Pfizer. 

On March 30, 2021, we entered into and closed a Royalty Purchase Agreement with an entity managed by HCR pursuant to which we sold to HCR 
the  right  to  receive  royalty  payments  made  by  Pfizer  in  respect  of  net  sales  of  RUXIENCE.  Under  the  terms  of  the  Royalty  Purchase  Agreement,  the 
Company received $35 million at closing and we are eligible to receive additional payments in the aggregate of up to an additional $32.5 million based on 
the achievement of sales milestones in 2021, 2022 and 2023. We received the 2021 milestone payments in the collective amount of $10 million on March 8, 
2022. The proceeds from these milestone payments, net of transaction costs, were recorded as an additional liability related to the sale of royalties on the 
consolidated balance sheet as of March 31, 2022. 

Due to the nature of the transaction, which included a cap on HCR’s rate of return, constituting continuing involvement under the Collaboration and 
License  Agreement  originally  between  Trubion  and  Wyeth,  we  recorded  a  liability  related  to  the  proceeds  received  from  HCR  of  $35.0  million,  net  of 
transaction costs of $1.1 million. Further, we received proceeds related to the 2021 milestone of $10.0 million, net of transaction costs of $0.5 million, and 
recorded additional liability related to sale of royalties. We recognized royalty revenue on net sales of RUXIENCE and recorded the royalty payments to 
HCR as a reduction of the liability when paid.

In order to non-dilutively address a Nasdaq listing compliance matter, on June 7, 2022, we entered into and closed an amendment to the Royalty 
Purchase Agreement (the Amendment to Royalty Purchase Agreement), pursuant to which we agreed to forego our right to receive 50% of incremental 
RUXIENCE  royalty  revenue  after  HCR  received  aggregate  royalty  payments  totaling  190%  of  the  Investment  Amount  plus  Milestone  Amounts  to  the 
extent paid by 

65

 
HCR.  The  Amendment  to  Royalty  Purchase  Agreement  eliminated  all  of  our  continuing  involvement  with  the  cash  generating  activities  related  to  the 
royalties  and  removed  all  restrictions  related  to  HCR’s  rate  of  return  and  therefore  was  accounted  for  under  ASC  610-20,  Gains  and  Losses  from 
Derecognition of Nonfinancial Assets and ASC 405-20, Liabilities – Extinguishment of Liabilities, resulting in recognition of  $37.2 million gain, which 
was the total balance of the liability related to the sale of royalties on the closing date. We received 2022 milestone payment of $2.5 million on February 
28,  2023.  The  proceed  from  2022  milestone  payment  was  recorded  as  other  income  in  the  consolidated  statement  of  operations  for  the  year  ended 
December 31, 2022. The Amendment to Royalty Purchase Agreement continues to include the opportunity receive additional milestone payment of $10 
million based on achievement of sales milestones in 2023.

Research and Development Expenses

We expense research and development costs as incurred. These expenses consist primarily of the costs associated with our research and development 
activities,  including  conducting  non-clinical  studies  and  clinical  trials,  fees  to  professional  service  providers  for  analytical  testing,  consulting  costs, 
independent monitoring or other administration of our clinical trials and obtaining and evaluating data from our clinical trials and non-clinical studies, as
well as costs of contract manufacturing services for clinical trial material, and costs of materials used in clinical trials and research and development.

We  expect  our  research  and  development  spending  will  be  dependent  upon  such  factors  as  the  results  from  our  clinical  trials,  the  availability  of 
reimbursement of research and development spending, the number of product candidates under development, the size, structure and duration of any clinical 
programs that we may initiate, and the costs associated with manufacturing our product candidates on a large-scale basis for later stage clinical trials. We 
may experience interruption of key clinical trial activities, such as site initiation, patient enrollment and clinical trial site monitoring, and key non-clinical 
activities due to the ongoing COVID-19 pandemic. While a number of our programs are still in the preclinical trial phase, we do not provide a breakdown 
of  the  initial  associated  expenses  as  we  are  often  evaluating  multiple  product  candidates  simultaneously.  Costs  are  reported  in  preclinical  research  and 
discovery until the program enters the clinic. 

Our research and development expenses by program for the years ended December 31, 2022 and 2021 are shown in the following table:

(in thousands)
Clinical programs:

APVO436
Other

Total clinical programs

Preclinical program, general research and discovery
Total

For the Year Ended December 31,

2022

2021

Change

  $

  $

6,503     $
(73 )    
6,430      

5,323     $
(223 )    
5,100      

11,452      
17,882     $

13,894      
18,994     $

1,180  
150  
1,330  

(2,442 )
(1,112 )

Research and development expenses decreased by $1.1 million, to $17.9 million for the year ended December 31, 2022 from $19.0 million for the 
year ended December 31, 2021. The decrease was primarily due to lower spending on preclinical projects and employee costs. The decrease was partially 
offset by higher spending on our APVO436 Phase 1b clinical trial and getting ALG.APV-527 ready for entry into the clinic.

General and Administrative Expenses

General  and  administrative  expenses  consist  primarily  of  personnel-related  costs  and  professional  fees  in  support  of  our  executive,  business 
development, finance, accounting, information technology, legal and human resource functions. Other costs include facility costs not otherwise included in 
research and development expenses.

For the year ended December 31, 2022, general and administrative expenses decreased by $0.8 million, to $13.9 million from $14.7 million for the 
year ended December 31, 2021. The decrease is primarily due to lower employee and consulting costs and no costs related to responding to a stockholder 
activism matter.

66

 
 
 
 
   
 
 
 
 
 
   
 
 
     
     
   
   
   
 
 
     
     
   
   
 
 
Other Income (Expense), Net

Other income (expense), net consists primarily of gain on extinguishment of liabilities, milestone income related to sale of royalties, costs related to 

debt extinguishment, accrued exit fees on debt, non-cash interest on financing agreements, and interest on debt.

Other Expense, Net

Other expense, net was $4.0 million for the year ended December 31, 2022 and $8.0 million for the year ended December 31, 2021. This decrease is 
primarily due to a significant decrease of non-cash interest expenses recorded for the year ended December 31, 2022. We no longer record non-cash interest 
expense  due  to  our  Amendment  to  the  Royalty  Purchase  Agreement  in  the  second  quarter  of  2022,  which  eliminated  the  liability  related  to  the  sale  of 
royalties. Additionally, interest expense on our MidCap Credit Agreement has decreased due to principal payments made in 2022. 

Gain on Extinguishment of Liability Related to Sale of Royalties

We recorded $37.2 million in other income for the year ended December 31, 2022, due to our Amendment to Royalty Purchase Agreement (see 

Note 8). We did not have any such gain for the year ended December 31, 2021.

Milestone Income Related to Sale of Royalties

We recorded $2.5 million in other income for the year ended December 31, 2022, related to Pfizer's net sales of RUXIENCE in fiscal year 2022. 
Due to our Amendment to Royalty Purchase Agreement, we record Milestone Amounts from HCR when they are earned (see Note 8). We received the 
2021 milestone payment of $10 million, net of transaction costs, in the first quarter of 2022 and recorded the proceeds received as an additional liability 
related to sale of royalties under ASC 470-10-25, Debt – Sales of Future Revenues or Various Other Measures of Income.

Discontinued Operations

The  accompanying  consolidated  financial  statements  include  discontinued  operations  from  two  separate  transactions:  the  sale  of  hyperimmune 
business to Saol International Limited in September 2017, from which we received a payment in 2021 related to collection of certain accounts receivable, 
and the sale of Aptevo BioTherapeutics LLC in 2020.

The following table represents the components attributable to income from discontinued operations in the consolidated statements of operations (in 

thousands):

Deferred payments from Medexus

Gain on contingent consideration from Saol

Income from discontinued operations

67

For the Year Ended December 31,
2021
2022

1,013  
—  
1,013  

  $

491  
460  
951  

  $

 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
   
 
Income from discontinued operations was $1.0 million for the year ended December 31, 2022 and 2021. For the year ended December 31, 2022, we 
collected $1.0 million in deferred payments from Medexus related to IXINITY sales.  For the year ended December 31, 2021, we collected $0.5 million 
related to the 2017 sale of the hyperimmune business to Saol as a result of the collection of certain accounts receivable and deferred payments of $0.5 
million from Medexus related to IXINITY sales.

Liquidity and Capital Resources

Cash Flows

The following table provides information regarding our cash flows for year ended December 31, 2022 and 2021:

(in thousands)
Net cash (used in) provided by:
Operating activities
Investing activities
Financing activities
(Decrease) increase in cash and cash equivalents

For the Year Ended December 31,

2022

2021

  $

  $

(21,022 )   $
(29 )    
(2,616 )    
(23,667 )   $

(21,679 )
(713 )
26,161  
3,769  

Net  cash  used  in  operating  activities  for  the  year  ended  December  31,  2022  was  primarily  due  to  changes  in  working  capital  accounts  and  our 
operating cash spend. Net cash used in operating activities for the year ended December 31, 2021 was primarily due to our net operating loss of $28.5 
million and changes in working capital accounts.

Net cash used in investing activities for the year ended December 31, 2022 and 2021 was primarily due to purchases of property and equipment.

Net cash used in financing activities for the year ended December 31, 2022 was primarily due to the $12.3 million of repayments of the MidCap 
Financial  term  loan,  and  $6.8  million  royalties  received  from  Pfizer  by  HCR  pursuant  to  our  Royalty  Purchase  Agreement.  This  was  offset  by  the  $10 
million milestone received by Aptevo from HCR related to the sale of royalties, net of $0.5 million transaction costs, and $7.0 million of proceeds received 
from issuance of common stock pursuant to our Equity Distribution Agreement with Piper Sandler. Net cash provided by financing activities for the year 
ended December 31, 2021, was primarily due to $35.0 million received from the Royalty Purchase Agreement, $10.2 million received from the common 
stock sold to Lincoln Park, offset by the $10.5 million partial repayment of the MidCap Financial term loan and the $8.6 million repayments under liability 
related to sale of royalties.

Sources of Liquidity

Royalty Purchase Agreement and Milestone Payments

On March 30, 2021, we entered into Royalty Purchase Agreement with HCR pursuant to which we sold HCR the right to receive royalty payments 
made by Pfizer in respect to net sale of RUXIENCE. Under the Royalty Purchase Agreement, we received $35 million at closing and incurred $1.1 million 
in  transaction  costs.  We  were  eligible  to  receive  additional  payments  in  aggregate  of  up  to  an  additional  $32.5  million  based  on  achievement  of  sales 
milestones in 2021, 2022 and 2023. We received the 2021 milestone payments in the collective amount of $10 million on March 8, 2022 and the 2022 
milestone payment of $2.5 million on February 28, 2023. Aptevo is eligible to receive additional milestone payment of $10 million based on achievement 
of sales milestones in 2023.

IXINITY Royalty Payments

On February 28, 2020, we entered into an LLC Purchase Agreement with Medexus, pursuant to which we sold all of the issued and outstanding 
limited liability company interests of Aptevo BioTherapeutics LLC, a wholly owned subsidiary of Aptevo. In addition to the payment received at closing, 
the Company receives deferred payments based on quarterly net sales of IXINITY and may also earn milestones in aggregate of up to $11 million from 
Medexus in the future. Milestones are based on Medexus obtaining certain regulatory approvals and sales thresholds. Pursuant to 

68

 
 
 
 
 
 
 
 
 
 
     
   
   
   
 
our LLC Purchase Agreement, the rate for deferred payments increased from 2% to 5% of net sales as of June 30, 2022. For the year ended December 31, 
2022, Aptevo received $1.0 million in deferred payments from Medexus related to IXINITY sales.

Equity Distribution Agreement

On  December  14,  2020,  we  entered  into  an  Equity  Distribution  Agreement  with  Piper  Sandler  &  Co  (Piper  Sandler).  The  Equity  Distribution 
Agreement provides that, upon the terms and subject to the conditions set forth therein, we may issue and sell through Piper Sandler, acting as sales agent, 
shares  of  our  common  stock  having  an  aggregate  offering  price  of  up  to  $50  million.  We  have  no  obligation  to  sell  any  such  shares  under  the  Equity 
Distribution Agreement. The sale of the shares of our common stock by Piper Sandler, if any, will be effected pursuant to a Registration Statement on Form 
S-3 which we filed on December 14, 2020. For the year ended December 31, 2022, we issued 1,452,065 shares of our common stock at an average share 
price of $4.92 under the Equity Distribution Agreement. We received $7.0 million in proceeds from issuance of these shares. We did not issue any shares 
under the Equity Distribution Agreement for the year ended December 31, 2021.

The Equity Distribution Agreement will terminate upon the issuance and sale of all shares under the Equity Distribution Agreement or upon the 

earlier termination thereof at any time by us or Piper Sandler upon notice to the other party.

Registration Statement

On December 14, 2020, we filed a Registration Statement on Form S-3 covering the offering, issuance, and sale of up to $200 million in common 
stock, preferred stock, and various series of debt securities and/or warrants to purchase any of such securities, which included the unsold securities from the 
Prior Registration Statement. On March 29, 2022, we filed an amendment to the prospectus supplement to the Registration Statement on Form S-3 filed on 
December 14, 2020 pursuant to General Instruction I.B.6 of Form S-3 (General Instruction I.B.6), which updates the amount of shares that we are eligible 
to sell under the Equity Distribution Agreement. So long as the aggregate market value of our common stock held by non-affiliates is less than $75 million, 
we will not sell shares under the Equity Distribution Agreement with a value of more than one-third of the aggregate market value of our common stock 
held by non-affiliates in any 12-month period due to the limitations of General Instruction I.B.6 of Form S-3 and the current public float of our common 
stock. If our public float increases such that we may sell additional amounts under the Equity Distribution Agreement and the prospectus than is mentioned 
in our last prospectus supplement to the Registration Statement on Form S-3 filed on December 13, 2020, we will file another amendment to the prospectus 
supplement prior to making additional sales. The limitations of General Instruction I.B.6 do not apply to sales of our shares under our Purchase Agreement 
with Lincoln Park Financial LLC as those sales were committed prior to us being subject to the limitations of General Instruction I.B.6.

Lincoln Park Purchase Agreement

On  February  16,  2022,  we  entered  into  a  new  Purchase  Agreement  and  a  Registration  Rights  Agreement  with  Lincoln  Park  (2022  Purchase 
Agreement and Registration Rights Agreement). The 2022 Purchase Agreement and Registration Rights Agreement replaced our Purchase Agreement and 
Registration Rights Agreement with Lincoln Park that we entered into with them in December 2018. Under the 2022 Purchase Agreement, Lincoln Park 
committed to purchase up to $35.0 million worth of our common stock over a 36-month period commencing after the satisfaction of certain conditions, 
which are within our control, as set forth in the Purchase Agreement. The purchase price per share will be based on the prevailing market price; provided, 
however,  that  the  prevailing  market  price  is  not  below  $1.00.  The  Company  issued  99,276  shares  of  our  common  stock  to  Lincoln  Park  for  no  cash 
consideration as an initial fee for its commitment to purchase shares of our common stock under the Purchase Agreement. The Company did not issue any 
shares of common stock for cash consideration to Lincoln Park under the Purchase Agreement for the year ended December 30, 2022.

Actual  sales  of  shares  of  our  common  stock  to  Lincoln  Park  under  the  Purchase  Agreement  will  occur  at  our  discretion  from  time  to  time  and 
depend on a variety of factors, including, among others, market conditions, the trading price of our common stock and additional determinations as to the 
appropriate  sources  of  funding  for  our  operations.  Lincoln  Park  has  no  right  to  require  any  sales,  but  is  obligated  to  make  purchases  as  we  direct,  in 
accordance with the Purchase Agreement.

69

 
 
Warrants

On March 11, 2019, we completed a public offering of common stock and warrants, as follows:

•

•

for  a  combined  public  offering  price  of  $14.00  per  share  of  common  stock  and  related  warrants,  1,417,857  shares  of  common  stock  and 
related warrants with a 5-year life to purchase up to 1,417,857 shares of common stock at an exercise price of $18.20 per share,

for  a  combined  public  offering  price  of  $13.86  per  pre-funded  warrant  and  related  warrant,  pre-funded  warrants  with  a  10-year  life  to 
purchase up to 153,571 shares of common stock at an exercise price of $0.14 per share and related warrants with a 5-year life to purchase up 
to 153,571 shares of common stock at an exercise price of $18.20 per share. These pre-funded warrants were exercised on March 21, 2019. 

For the year ended December 31, 2022, the Company did not have any of its warrants exercised. For the year ended December 31, 2021, certain of 
the  holders  of  the  Company’s  warrants  exercised  warrants  with  a  strike  price  of  $18.20  per  share,  resulting  in  the  issuance  of  54,105  shares  of  the 
Company’s  common  stock  and  aggregate  proceeds  to  the  Company  of  approximately  $1.0  million.  As  of  December  31,  2022,  there  were  warrants  to 
purchase 350,589 shares of common stock outstanding.

Liquidity

We have financed our operations to date primarily through revenue generated from our commercial products, the Royalty Purchase Agreement with 
HCR,  royalty  payments  from  Pfizer,  deferred  payments  from  Medexus,  the  sale  of  our  hyperimmune  products  business  in  September  2017,  the  sale  of 
Aptevo BioTherapeutics on February 28, 2020, public offerings of our common stock, proceeds from issuance of our common stock pursuant to our 2018 
Purchase Agreement with Lincoln Park, loan proceeds, milestone payments, research and development funding from strategic partners, and funds received 
at the date of our spin-off from Emergent. We had cash and cash equivalents of $22.6 million and an accumulated deficit of $206.0 million as of December 
31, 2022. 

For the year ended December 31, 2022, net cash used in our operating activities was $21.0 million. 

Our future success is dependent on our ability to develop our product candidates and ultimately upon our ability to attain profitable operations. We 
anticipate  that  we  will  continue  to  incur  significant  operating  losses  for  the  next  several  years  as  we  incur  expenses  to  continue  to  execute  on  our 
development strategy to advance our preclinical and clinical stage assets. We will not generate revenues from our development stage product candidates 
unless  and/or  until  we  or  our  collaborators  successfully  complete  development  and  obtain  regulatory  approval  for  such  product  candidates,  which  we 
expect  will  take  a  number  of  years  and  is  subject  to  significant  uncertainty.  If  we  obtain  regulatory  approval  for  one  of  our  development  stage  product 
candidates, we expect to incur significant commercialization expenses related to sales, marketing, manufacturing and distribution, to the extent that such 
costs are not paid by collaborators. We do not have sufficient cash to complete the clinical development of any of our development stage product candidates 
and will require additional funding in order to complete the development activities required for regulatory approval of such product candidates. We will 
require substantial additional funds to continue our development programs and to fulfill our planned operating goals. 

70

 
 
 
Due to the ongoing COVID-19 pandemic, including if any new variants emerge, and macroeconomic environment, we may experience delays in 
opportunities to partner our product candidates, due to financial and other impacts on potential partners. Additionally, we may experience potential impacts 
on  our  future  deferred  payments  and  milestones  from  Medexus  due  to  effects  of  macroeconomic  impacts,  including,  but  not  limited  to,  the  ongoing 
COVID-19  pandemic,  and  rising  and  fluctuating  inflation,  which  may  impact  Medexus’  ability  to  continue  to  successfully  commercialize  the  IXINITY 
businesses. Additionally, we may experience potential impacts on our future milestones, which are based on global net sales of RUXIENCE, from HCR 
due  to  the  effects  of  the  ongoing  COVID-19  pandemic  and  macroeconomic  environment,  which  may  impact  Pfizer’s  ability  to  continue  to  successfully 
commercialize the RUXIENCE business. We believe that our existing cash resources, milestone payments related to the Royalty Purchase Agreement with 
HCR, funds available under Purchase Agreement with Lincoln Park and the Equity Distribution Agreement with Piper Sandler, cash to be generated from 
future  deferred  payments  and  milestones  related  to  IXINITY  sales  and  approvals  by  Medexus,  will  be  sufficient  to  meet  our  projected  operating 
requirements and debt service for at least twelve months from the date of this filing of this Annual Report on Form 10-K.

There are numerous risks and uncertainties associated with research, development, and commercialization of pharmaceutical products. Accordingly, 

our future funding requirements may vary from our current expectations and will depend on many factors, including, but not limited to: 

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

our ability to raise additional capital when needed or on acceptable terms;

future profitability given our historical losses;

our ability to attract, motivate and retain key personnel;

the impact of the ongoing COVID-19 pandemic to our business, including clinical trials;

the timing of, and the costs involved in, completing our clinical trials, and obtaining regulatory approvals for our product candidates; 

our ability to obtain regulatory clearance to commence clinical trials for product candidates;

our ability to establish and maintain strategic partnerships, licensing or other arrangements and the financial terms of such agreements; 

the effects of macroeconomic conditions, including rising and fluctuating inflation, interest rates and supply chain constraints;

our ability to successfully develop our ADAPTIR or ADAPTIR-FLEX platforms;

the  terms  of  our  credit  agreement  and  potential  restrictions  to  our  operations  and  availability  of  cash  for  investment  in  our  business 
operations;

the results of our current and planned preclinical studies and clinical trials;

the scope, progress, results, and costs of researching and developing our product candidates, and of conducting preclinical and clinical trials, 
including whether clinical trial results will be consistent with the past data;

our  reliance  on  third  parties  to  effectively  conduct  our  clinical  and  non-clinical  trials,  and  to  effectively  carry  out  their  contractual  duties, 
comply with regulatory requirements or meet expected deadlines;

the  costs  involved  in  preparing,  filing,  prosecuting,  maintaining,  defending  and  enforcing  patent  claims,  including  litigation  costs  and  the 
outcome of such litigation; 

the cost of commercialization activities if any of our product candidates are approved for sale, including marketing, sales, and distribution 
costs; 

whether and to what extent future milestones are received under our Royalty Purchase Agreement with HCR; and

the timing, receipt and amount of any milestone payments and deferred payments from Medexus with respect to IXINITY.

71

 
If we are unable to raise substantial additional capital in the next year, whether on terms that are acceptable to us or at all, then we may be required 

to: 

•

•

delay, limit, reduce or terminate our clinical trials or other development activities for one or more of our product candidates; and/or,

delay,  limit,  reduce  or  terminate  our  establishment  of  other  activities  that  may  be  necessary  to  commercialize  our  product  candidates,  if 
approved.

The sale of additional equity or convertible debt securities may result in additional dilution to our stockholders. If we raise additional funds through 
the issuance of debt securities or preferred stock or through credit facilities, these securities and/or the loans under credit facilities could provide for rights 
senior to those of our common stock and could contain covenants that would restrict our operations. Additional funds may not be available when we need 
them, on terms that are acceptable to us, or at all. We also expect to seek additional funds through arrangements with collaborators, licensees or other third 
parties. These arrangements would generally require us to relinquish or encumber rights to some of our technologies or drug candidates, and we may not be 
able to enter into such arrangements on acceptable terms, if at all. Due to the ongoing COVID-19 pandemic, including if any new variants emerge, and 
macroeconomic  factors,  we  may  experience  delays  in  clinical  trials  and  non-clinical  work,  and  opportunities  to  partner  our  product  candidates,  due  to 
financial and other impacts on potential partners.

Contractual Obligations

We have an operating lease related to our office and laboratory space in Seattle, Washington. This lease was amended in March 2019 to extend the 
term of the amended lease is through April 2030 and provided two options to extend the lease term, each by five years, as well as a one-time option to 
terminate the lease in April 2023, with nine months’ notice, or by July 2022. On May 26, 2022, we further amended our office and laboratory lease to 
remove the one-time termination option in April 2023. In exchange for removing the termination option, we received six months of free rent.  As a result, 
we recorded an additional $4.4 million of lease liability and right-of-use asset on the consolidated balance sheet in May 2022.

We have a non-exclusive Commercial Platform License Agreement with OMT (OMT License Agreement") for certain transgenic rodents of OMT's 
OmniAb platform. Our OMT License Agreement obligates us to make milestone and royalty payments upon achievement of certain regulatory approvals 
and commercialization of our product candidates. APVO436 and APVO603 are the product candidates currently subject to this agreement. Pursuant to our 
agreement, we expect to make $2,000,000 milestone payment upon dosing the first patient in our Phase 2 clinical trial of APVO436, which we expect to 
initiate in the second half of 2023.

On  August  5,  2020,  we  entered  into  a  new  Credit  Agreement,  with  MidCap  Financial  which  was  subsequently  amended.  The  Credit  Agreement 
provided  us  with  up  to  $25  million  of  available  borrowing  capacity.  The  MidCap  Financial  loan  has  a  48  month  term,  is  interest-only  for  the  first  18 
months, with straight-line amortization for the remaining 30 months and bears interest at a rate of one month London Interbank Offered Rate (LIBOR) plus 
6.25%  per  annum,  subject  to  a  1.50%  LIBOR  floor  and  a  2.50%  LIBOR  cap.  On  March  30,  2021,  we  amended  our  Credit  Agreement  with  MidCap 
Financial and used $10 million of the proceeds received from the Royalty Purchase Agreement with HCR to pay down the outstanding principal under this 
agreement from $25 million to $15 million. Additionally, the Company used the $10 million milestone payment received on March 8, 2022, pursuant to our 
Royalty Purchase Agreement with HCR to further pay down the outstanding principal down to $5 million.

On  June  7,  2022,  the  Company  further  amended  its  Credit  Agreement  with  MidCap  Financial  to  obtain  MidCap  Financial’s  limited  consent  to 
amend its Royalty Purchase Agreement with HCR. The Limited Consent and Second Amendment to Credit Agreement did not change future cash flows or 
other terms of the Credit Agreement.

Additionally,  on  August  30,  2022,  we  amended  our  Credit  Agreement  with  MidCap  Financial  to  replace  the  LIBOR  benchmark  with  Secured 
Overnight Financing Rate (SOFR), which is regulated by the Federal Reserve Bank of New York. Aptevo amended our Credit Agreement due to the United 
Kingdom’s Financial Conduct Authority (FCA) planned phase-out of one-month US Dollar LIBOR settings in 2023. Our Credit Agreement continues to 
bear base interest at a rate of 6.25% per annum plus SOFR, subject to a 1.50% SOFR floor and a 2.50% SOFR cap.

72

 
Our  principal  commitments  include  obligations  under  vendor  contracts  to  purchase  research  services  and  other  purchase  commitments  with  our 
vendors. In the normal course of business, we enter into services agreements with contract research organizations, contract manufacturing organizations 
and other third parties. Generally, these agreements provide for termination upon notice, with specified amounts due upon termination based on the timing 
of termination and the terms of the agreement. The actual amounts and timing of payments under these agreements are uncertain and contingent upon the 
initiation and completion of the services to be provided.

Critical Accounting Policies, and Significant Judgments, and Estimates

The preparation of our consolidated financial statements in conformity with accounting principles generally accepted in the United States (GAAP) 
requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. We base our 
estimates on historical experience and on various other factors. Although we believe that our judgments and estimates are appropriate, actual results may 
differ materially from our estimates and changes in these estimates are recorded when known. An accounting policy is considered critical if it is important 
to a company’s financial condition and results of operations and if it requires the exercise of significant judgment and the use of estimates on the part of 
management in its application. 

While our significant accounting policies are more fully described in Note 1 to our audited consolidated financial statements appearing elsewhere in 
this report, we believe the following accounting policies are the most critical to the judgments and estimates we use in the preparation of our consolidated 
financial statements.

Liability Related to Sale of Royalties and Other Income (Expense)

On June 7, 2022, we amended our Royalty Purchase Agreement pursuant to which we agreed to forego our right to receive 50% of incremental 
RUXIENCE  royalty  revenue  after  HCR  received  aggregate  royalty  payments  totaling  190%  of  the  Investment  Amount  plus  Milestone  Amounts  to  the 
extent  paid  by  HCR.  The  Amendment  to  Royalty  Purchase  Agreement  eliminated  all  of  our  continuing  involvement  with  the  cash  generating  activities 
related to the royalties and removed all restrictions related to HCR’s rate of return and therefore was accounted for under ASC 610-20, Gains and Losses 
from Derecognition of Nonfinancial Assets and ASC 405-20, Liabilities – Extinguishment of Liabilities, resulting in recognition of a $37.2 million gain, 
which was the total balance of the liability related to the sale of royalties on the closing date.

Prior to the Amendment to Royalty Purchase Agreement, we accounted for the Royalty Purchase Agreement with HCR, including future milestone 
payments to be received, as a debt-like instrument within the scope of ASC 470-10-25, Debt – Sales of Future Revenues or Various Other Measures of 
Income.  We  recorded  the  proceeds  from  the  Royalty  Purchase  Agreement  as  a  liability  related  to  the  sale  of  royalties,  net  of  transaction  costs,  and 
amortized the balance using the effective interest method. To determine the amortization of the liability, the Company estimated the total amount of future 
net royalty payments over the life of the arrangement. The total amount of net royalty payments over the life of the arrangement, less the net proceeds 
received, were recorded as non-cash interest expense over the life of the arrangement using the effective interest method. The actual effective interest rate 
was  affected  by  the  amount  and  timing  of  the  net  royalty  payments  received  by  HCR  and  changes  in  the  Company’s  royalty  forecasts.  The  Company 
engaged third party consultant services in estimating total future net royalty payments and assessed the effective interest rate by comparing projected net 
royalty payments to actual and adjusts the effective interest rate retrospectively. Milestone payments were recorded as additions to the liability related to the 
sale of royalties, net of transaction costs. While we believe our estimates were reasonable, there were differences between actual net royalty payments and 
our projections. Historically, differences between estimated and actual net royalty payments were not material.

Research and Development Expenses

Research and development expenses are expensed as incurred. Research and development costs primarily consist of internal labor costs, fees paid to 
outside service providers and the costs of materials used in clinical trials and research and development. Other research and development expenses include 
facility, maintenance, and related support expenses.

A  substantial  portion  of  our  preclinical  studies  and  all  of  our  clinical  studies  have  been  performed  by  third-party  contract  research  organizations 
(CRO). We review the activities performed by the CROs each period. For preclinical studies, the significant factors used in estimating accruals include the 
percentage of work completed to date and 

73

 
contract milestones achieved. For clinical study expenses, the significant factors used in estimating accruals include the number of enrolled patients visit at 
each  site  to  date.  Our  estimates  are  highly  dependent  upon  the  timeliness  and  accuracy  of  the  data  provided  by  our  CROs  regarding  the  status  of  each 
program and total program spending and adjustments are made when deemed necessary.

Stock-Based Compensation

Under ASC 718, Compensation—Stock-based Compensation, we measure and recognize compensation expense for restricted stock units (RSUs), 
and stock options granted to our employees and directors based as of the fair value of the awards on the date of grant. The fair value of stock options is 
estimated at the date of grant using the Black-Scholes option pricing model that requires management to apply judgment and make estimates, including:

•

•

•

•

•

the  expected  term  of  the  stock  option  award,  which  we  calculate  using  the  simplified  method,  as  permitted  by  the  SEC  Staff  Accounting 
Bulletin No. 110, Share-Based Payment, as we have insufficient historical information regarding our stock options to provide a basis for an 
estimate;

the  expected  volatility  of  our  underlying  common  stock,  which  we  estimate  based  on  the  historical  volatility  of  a  representative  group  of 
publicly traded biopharmaceutical companies with similar characteristics to us, and our own historical and implied future volatility;

the risk-free interest rate, which we based on the yield curve of U.S. Treasury securities with periods commensurate with the expected term 
of the options being valued;

the  expected  dividend  yield,  which  we  estimate  to  be  zero  based  on  the  fact  that  we  have  never  paid  cash  dividends  and  have  no  present 
intention to pay cash dividends; and

the fair value of our common stock on the date of grant.

Stock-based  compensation  expense  for  RSUs,  and  stock  options  is  recognized  on  a  straight-line  basis  over  the  requisite  service  period,  which  is 
generally the vesting period of the respective award. We are required to estimate a forfeiture rate to calculate the stock-based compensation expense for our 
awards.  Our  forfeiture  rate  is  based  on  an  analysis  of  our  actual  forfeitures  since  the  adoption  of  our  equity  award  plan.  We  routinely  evaluate  the 
appropriateness  of  the  forfeiture  rate  based  on  actual  forfeiture  experience,  analysis  of  employee  turnover,  and  expectations  of  future  option  exercise 
behavior.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

We are a smaller reporting company as defined by Rule 12b-2 of the Exchange Act, and are not required to provide the information required under 

this item.

74

 
Table of Contents

Item 8. Financial Statements and Supplementary Data

APTEVO THERAPEUTICS INC.

Index to Consolidated Financial Statements

Report of Moss Adams LLP, Independent Registered Public Accounting Firm (Moss Adams LLP, Seattle, WA, PCAOB ID: 659)
Financial Statements

Consolidated Balance Sheets  
Consolidated Statements of Operations 
Consolidated Statements of Cash Flows 
Consolidated Statements of Changes in Stockholders’ Equity
Notes to Consolidated Financial Statements

75

76

78
79
80
81
82

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm

To the Stockholders and the Board of Directors of 
Aptevo Therapeutics Inc. 

Opinion on the Financial Statements

We  have  audited  the  accompanying  consolidated  balance  sheets  of  Aptevo  Therapeutics  Inc.  (the  “Company”)  as  of  December  31,  2022  and  2021,  the 
related consolidated statements of operations, cash flows, and changes in stockholders’ equity for the years then ended, 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 
consolidated financial position of the Company as of December 31, 2022 and 2021, and the consolidated results of its operations and its cash flows for the 
years then ended, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s 
consolidated 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 audits to obtain reasonable 
assurance  about  whether  the  consolidated  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 consolidated financial statements, whether due to error or 
fraud,  and  performing  procedures  to  respond  to  those  risks.  Such  procedures  included  examining,  on  a  test  basis,  evidence  regarding  the  amounts  and 
disclosures in the consolidated 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 consolidated financial statements. We believe that our audits provide a reasonable basis 
for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was 
communicated or required to be communicated to the audit committee and that (1) relates to accounts or disclosures that are material to the consolidated 
financial statements and (2) involved especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter 
in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, 
providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Liability Related to Sale of Royalties and Other Income

As  described  in  Note  8,  the  Company  previously  entered  into  a  royalty  purchase  agreement  (the  Royalty  Purchase  Agreement)  in  2021  with  an  entity 
managed by HealthCare Royalty Management, LLC (HCR), through which the Company sold the right to receive royalty payments made by Pfizer Inc. in 
respect of global net sales of RUXIENCE. The Company initially received $35 million at the closing of the Royalty Purchase Agreement and was eligible 
to receive additional payments in aggregate of up to an additional $32.5 million based on the achievement of RUXIENCE sales milestones in 2021, 2022, 
and  2023.  Due  to  the  nature  of  the  transaction,  which  included  a  cap  on  HCR’s  rate  of  return  which  constituted  continuing  involvement,  the  Company 
recorded a liability related to the proceeds (net of 

76

 
 
 
 
 
 
 
 
 
 
 
 
transaction costs) received from HCR, which was reduced by the royalty revenue recognized on net sales of RUXIENCE when received. On June 7, 2022, 
the Company entered into an Amendment to the Royalty Purchase Agreement which eliminated all of the Company’s continuing involvement, resulting in 
the  Company  derecognizing  the  liability  and  recognizing  a  $37.2  million  gain,  which  represented  the  total  balance  of  the  liability  on  the  closing  date. 
Future milestone payments are accounted for as variable consideration and recognized using the most likely method in accordance with ASC 610-20 Other 
Income — Gains and Losses from the Derecognition of Nonfinancial Assets. The proceeds from 2022 milestones of $2.5 million were recorded as other 
income in the consolidated statement of operations for the year ended December 31, 2022.

We identified the Amendment to the Royalty Purchase Agreement as a critical audit matter given the Company applied significant judgment in determining 
the appropriate accounting treatment for the transaction. This in turn led to a high degree of auditor judgment and increased extent of effort, including the 
use of individuals with specialized skill, in performing procedures and evaluating whether the transaction had been properly accounting for in accordance 
with the relevant accounting principles generally accepted in the United States.

The primary procedures we performed to address this critical audit matter included:

•

•

•

•

Obtaining and evaluating all relevant contract source documents.

In consultation with our professional practice group, evaluating the accounting treatment for the Amendment to Royalty Purchase Agreement 
under the relevant accounting guidance.

Testing the inputs to the calculation and the mathematical accuracy of management's calculations of the gain from extinguishment of the liability 
related to sale of royalties in the consolidated financial statements.

Evaluating  all  cash  milestone  payments  received  from  HCR  through  issuance  of  the  consolidated  financial  statements  for  proper  inclusion  as 
other income in the consolidated statement of operations for the year ended December 31, 2022.

/s/ Moss Adams LLP

Seattle, Washington
March 30, 2023

We have served as the Company’s auditor since 2020.

77

 
 
 
 
 
 
 
 
 
 
 
Aptevo Therapeutics Inc.
CONSOLIDATED BALANCE SHEETS
(in thousands, except share and per share amounts)

ASSETS

December 31, 2022

December 31, 2021

Current assets:

Cash and cash equivalents
Restricted cash
Royalty and milestone receivable
Prepaid expenses
Other current assets

Total current assets

Property and equipment, net
Operating lease right-of-use asset
Other assets

Total assets

LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:

Accounts payable and other accrued liabilities
Accrued compensation
Liability related to the sale of royalties, net - short-term
Current portion of long-term debt
Other current liabilities

Total current liabilities

Liability related to the sale of royalties, net - long-term
Long-term debt
Operating lease liability

Total liabilities

Stockholders' equity:
Preferred stock: $0.001 par value; 15,000,000 shares authorized, zero 
   shares issued or outstanding
Common stock: $0.001 par value; 500,000,000 shares authorized; 
   6,466,294 and 4,898,143 shares issued and outstanding at December
   31, 2022 and December 31, 2021, respectively
Additional paid-in capital
Accumulated deficit
Total stockholders' equity
Total liabilities and stockholders' equity

  $

  $

  $

  $

  $

  $

  $

22,635  
—  
2,500  
1,571  
744  
27,450  
1,462  
5,303  
—  
34,215  

3,499  
2,105  
—  
2,000  
1,102  
8,706  
—  
1,456  
6,079  
16,241  

45,044  
1,259  
3,664  
1,823  
780  
52,570  
2,379  
1,584  
68  
56,601  

3,462  
2,077  
15,465  
11,667  
2,086  
34,757  
15,580  
3,707  
1,341  
55,385  

—  

—  

48  
223,962  
(206,036 )    
17,974  
34,215  

  $

47  
215,232  
(214,063 )
1,216  
56,601  

The accompanying notes are an integral part of these consolidated financial statements.

78

 
 
 
 
   
 
 
 
   
 
 
 
 
   
 
 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
     
   
 
     
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
 
     
   
 
     
   
   
   
   
   
   
   
   
   
   
 
Aptevo Therapeutics Inc.
CONSOLIDATED STATEMENTS OF OPERATIONS 
(in thousands, except share and per share amounts)

Royalty revenue
Operating expenses:

Research and development
General and administrative

Loss from operations
Other income (expense):

Other expense from continuing operations, net
Gain on extinguishment of liability related to
   sale of royalties
Milestone income related to sale of royalties

Net income (loss) from continuing operations
Discontinued operations:

Income from discontinued operations

Net income (loss)

Net income (loss) per share:

Basic

Diluted

Shares used in calculation:

Basic
Diluted

For the Year Ended December 31,
2021
2022

3,114  

(17,882 )    
(13,873 )    
(28,641 )    

12,292  

(18,994 )
(14,698 )
(21,400 )

(4,027 )    

(8,008 )

37,182  
2,500  
7,014  

1,013  
8,027  

  $

1.57  

1.57  

  $
  $

5,100,310  
5,102,914  

—  
—  
(29,408 )

951  
(28,457 )

(6.07 )

(6.07 )

4,687,952  
4,687,952  

  $

  $
  $

The accompanying notes are an integral part of these consolidated financial statements.

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Aptevo Therapeutics Inc.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)

Operating Activities
Net income (loss)
Adjustments to reconcile net income (loss) to net cash used in operating
   activities:

Stock-based compensation
Depreciation and amortization
Loss on disposal of property and equipment
Non-cash interest expense and other
Gain on extinguishment of liability related to sale of royalties

Changes in operating assets and liabilities:

Royalty receivable
Prepaid expenses and other current assets
Operating lease right-of-use asset
Accounts payable, accrued compensation and other liabilities
Long-term operating lease liability
Net cash used in operating activities
Investing Activities
Purchases of property and equipment
Net cash used in investing activities
Financing Activities
Payments of long-term debt, including fees
Repayments under liability related to sale of royalties
Proceeds from sale of royalties
Transaction costs from sale of royalties
Proceeds from exercise of stock options
Value of equity awards withheld for tax liability
Proceeds from exercises of warrants
Proceeds from milestones related to sale of royalties
Transaction costs for milestones related to sale of royalties
Proceeds from issuance of common stock
Net cash (used in) provided by financing activities
(Decrease) increase in cash, cash equivalents, and restricted cash
Cash, cash equivalents, and restricted cash at beginning of period
Cash, cash equivalents, and restricted cash at end of period

Supplemental Cash Flow Information
Change in right-of-use asset and lease liability from lease remeasurement

For the Year Ended December 31,
2021
2022

  $

8,027     $

(28,457 )

1,802    
901    
47    
3,239    
(37,182 )  

1,164    
355    
653    
(394 )  
366    
(21,022 )  

(29 )  
(29 )

(12,267 )  
(6,779 )  
—    
—    
—    
(4 )  
—  
10,000  
(500 )
6,934  
(2,616 )  
(23,667 )  
46,303    
22,636     $

1,643  
1,144  
4  
6,642  
—  

(1,295 )
436  
1,138  
(1,915 )
(1,019 )
(21,679 )

(713 )
(713 )

(10,550 )
(8,627 )
35,000  
(1,100 )
220  
—  
985  
—  
—  
10,233  
26,161  
3,769  
42,534  
46,303  

4,372     $

—  

  $

  $

The accompanying notes are an integral part of these consolidated financial statements.

80

 
 
 
 
 
 
 
 
 
 
 
     
   
 
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
   
 
 
 
 
 
   
 
     
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
 
 
 
 
 
 
 
 
     
   
 
     
   
 
 
Aptevo Therapeutics Inc.
CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS’ EQUITY
(in thousands, except share amounts)

Balance at December 31, 2020

Proceeds from exercise of stock options
Proceeds from exercise of warrants
Proceeds from issuance of common stock
Stock-based compensation
Net loss for the period
Balance at December 31, 2021

Common stock issued upon vesting of
   restricted stock units and exercised stock options
Commitment shares issued pursuant to
   Lincoln Park Purchase Agreement
Proceeds from issuance of common stock
Stock-based compensation
Net income for the period
Balance at December 31, 2022

Common Stock

Shares
4,410,909  

  $

Amount

26,082  
54,105  
407,047  
—  
—  
4,898,143  

16,810  

99,276  
1,452,065  
—  
—  
6,466,294  

  $

  $

46  

—  
—  
1  
—  
—  
47  

—  

—  
1  
—  
—  
48  

  $

  $

  $

Additional

Paid-In

Capital

Total

Accumulated

Stockholders'

Deficit

Equity

202,154     $
218    
984    
10,233    
1,643    
—    
215,232     $

(185,606 )

  $

—  
—  
—  
—  
(28,457 )
(214,063 )

(5 )  

—  

—    
6,933    
1,802    
—    
223,962     $

—  
—  
—  
8,027  
(206,036 )

  $

  $

16,594  

218  
984  
10,234  
1,643  
(28,457 )
1,216  

(5 )

—  
6,934  
1,802  
8,027  
17,974  

The accompanying notes are an integral part of these consolidated financial statements.

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Aptevo Therapeutics Inc.
Notes to Consolidated Financial Statements

Note 1. Nature of Business and Significant Accounting Policies

Organization and Liquidity

Aptevo  Therapeutics  Inc.  (Aptevo,  we,  us,  or  the  Company)  is  a  clinical-stage,  research  and  development  biotechnology  company  focused  on 
developing  novel  immunotherapy  candidates  for  the  treatment  of  different  forms  of  cancer.  We  have  developed  two  versatile  and  enabling  platform 
technologies  for  rational  design  of  precision  immune  modulatory  drugs.  Our  lead  clinical  candidates,  APVO436  and  ALG.APV-527,  and  preclinical 
candidates, APVO603 and APVO711, were developed using our ADAPTIR™ modular protein technology platform. Our preclinical candidate APVO442 
was developed using our ADAPTIR-FLEX™ modular protein technology platform.  

We are currently trading on the Nasdaq Capital Market under the symbol “APVO.”

The accompanying consolidated financial statements have been prepared on a basis that assumes we will continue as a going concern and which 
contemplates the realization of assets, and satisfaction of liabilities, and commitments in the normal course of business. For the year ended December 31, 
2022, we had net income of $8.0 million. We had an accumulated deficit of $206.0 million as of December 31, 2022. For the year ended December 31, 
2022,  net  cash  used  in  our  operating  activities  was  $21.0  million.  We  have  suffered  recurring  losses  from  operations  and  negative  cash  flows  from 
operating activities. We have suffered recurring losses from operations and negative cash flows from operating activities. We believe that our existing cash 
resources, milestone payments related to the Royalty Purchase Agreement with HCR, funds available under the Purchase Agreement with Lincoln Park and 
the Equity Distribution Agreement with Piper Sandler, cash to be generated from future deferred payments and milestones related to IXINITY sales and 
regulatory approvals achieved by Medexus, and contingent considerations to be received from Kamada Ltd. (previously Saol), will be sufficient to meet our 
projected operating requirements and debt service for at least twelve months from the date of issuance of these financial statements. We may choose to raise
additional funds to support our operating and capital needs in the future.

We continue to face significant challenges and uncertainties and, as a result, our available capital resources may be consumed more rapidly than 
currently expected due to: (a) changes we may make to the business that affect ongoing operating expenses; (b) changes we may make in our business 
strategy;  (c)  changes  we  may  make  in  our  research  and  development  spending  plans;  (d)  potential  decreases  in  our  expected  milestone  and  deferred 
payments  from  Medexus  with  respect  to  IXINITY;  (e)  whether  and  to  what  extent  future  milestone  payments  are  received  under  our  Royalty  Purchase 
Agreement; (f) macroeconomic conditions such as rising interest rates, inflation and costs; and (g) other items affecting our forecasted level of expenditures
and use of cash resources. We may obtain additional funding through our existing equity Purchase Agreement with Lincoln Park or our Equity Distribution 
Agreement with Piper Sandler, or attempt to obtain other public or private financing, collaborative or licensing arrangements with strategic partners, or 
through credit lines or other debt financing sources to increase the funds available to fund operations. However, we may not be able to secure such funding 
in a timely manner or on favorable terms, if at all. Furthermore, if we issue equity or debt securities to raise additional funds, our existing stockholders may 
experience dilution, and the new equity or debt securities may have rights, preferences, and privileges senior to those of our existing stockholders. If we 
raise  additional  funds  through  collaboration,  licensing,  or  other  similar  arrangements,  it  may  be  necessary  to  relinquish  valuable  rights  to  our  potential 
products or proprietary technologies, or grant licenses on terms that are not favorable to us. Without additional funds, we may be forced to delay, scale 
back, or eliminate some of our research and development activities or other operations and potentially delay product development in an effort to provide 
sufficient  funds  to  continue  our  operations.  If  any  of  these  events  occurs,  our  ability  to  achieve  our  development  and  commercialization  goals  may  be 
adversely  affected.  Given  the  continuing  global  economic  and  geopolitical  climate,  including  rising  interest  rates  and  stock  market  volatility,  we  may 
experience delays or difficulties in the financing environment and raising capital due to economic uncertainty. 

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Basis of Presentation

The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (GAAP). 
These  consolidated  financial  statements  include  all  adjustments,  which  include  normal  recurring  adjustments,  necessary  for  the  fair  presentation  of  the 
Company’s financial position. 

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported 
amounts  of  assets  and  liabilities  at  the  date  of  the  financial  statements  and  the  reported  amounts  of  revenues  and  expenses  during  the  reporting  period. 
Actual results could differ from these estimates and changes in these estimates are recorded when known.

The consolidated financial statements include the accounts of the Company and our wholly owned subsidiary, Aptevo Research and Development 

LLC. All intercompany balances and transactions have been eliminated. All intercompany balances and transactions have been eliminated.

Significant Accounting Policies

Use of Estimates

The preparation of financial statements in conformity with GAAP requires estimates and assumptions that affect the reported amounts of assets and 
liabilities,  revenues  and  expenses,  and  related  disclosures  of  contingent  liabilities  in  the  consolidated  financial  statements  and  accompanying  notes. 
Estimates  are  used  for,  but  not  limited  to,  forecasted  royalties,  effective  interest  rates,  clinical  accruals,  useful  lives  of  equipment,  commitments  and 
contingencies, stock-based compensation, and incremental borrowing rate (IBR) used for our lease. Given the global economic climate and additional or 
unforeseen effects from the ongoing COVID-19 pandemic, these estimates are becoming more challenging, and actual results could differ materially from 
those estimates.

Cash Equivalents

Cash equivalents are highly liquid investments with a maturity of 90 days or less at the date of purchase and include time deposits and investments 

in money market funds with commercial banks and financial institutions. 

Restricted Cash 

As  of  December  31,  2022  and  2021,  we  had  current  restricted  cash  of  $0  and  $1.3  million  related  to  securing  letters  of  credit.  We  classify  our 

restricted cash as either current or non-current based on the term of the underlying letters of credit. 

Concentrations of Credit Risk

Financial  instruments  that  potentially  subject  Aptevo  to  concentrations  of  credit  risk  consist  primarily  of  cash  and  cash  equivalents,  certain 
investments and royalty and milestone receivable. Aptevo places its cash and cash equivalents with high quality financial institutions and may maintain 
cash balances in excess of insured limits. Management believes that the financial risks associated with its cash and cash equivalents are minimal.

The  royalty  and  milestone  receivable  relates  to  our  Amendment  to  Royalty  Purchase  Agreement  with  HCR.  We  do  not  believe  that  Aptevo  is 

exposed to significant credit risk related to royalty and milestone receivable due to the credit quality and history of collections from HCR.

Property and Equipment

Property and equipment are stated at cost. Depreciation is computed using the straight-line method over the following estimated useful lives:

Furniture and equipment
Software and hardware
Leasehold improvements

7-10 years
3-5 years or product life
Lesser of the asset life or the remaining lease term

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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. Repairs and maintenance costs are expensed as incurred.

Leases

We determine if an arrangement is a lease at inception date. Leases are to be classified as finance or operating leases at the lease commencement 
date, which affects the classification of expense recognition in the consolidated statement of operations. Right-of-use assets represent the right to use an 
underlying asset for the lease term and lease liabilities represent the obligation to make lease payments, as agreed to in the lease. Operating lease liabilities 
and  the  corresponding  right-of-use  assets  are  recognized  based  on  the  present  value  of  the  future  minimum  lease  payments  over  the  lease  term  at 
commencement date. An operating right-of-use asset is measured as the amount of the initial measurement of the lease liability, adjusted for prepaid or 
accrued  lease  payments,  the  remaining  balance  of  any  lease  incentive  received,  unamortized  initial  direct  costs,  and  any  impairment  of  the  right-of-use 
asset. The initial measurement of the lease liabilities and right-to-use assets of finance leases is the same as for operating leases. We include options to 
extend the lease and certain termination options in our lease liability and right-of-use asset when it is reasonably certain that we will exercise those options.

As  our  existing  leases  do  not  contain  an  implicit  interest  rate,  we  estimate  our  IBR  based  on  information  available  at  commencement  date  in 
determining the present value of future payments. Due to the significant judgment involved and the complex analysis needed to determine this discount 
rate,  we  engaged  a  third-party  valuation  specialist  to  advise  us  in  our  determination  of  our  IBR  for  the  initial  adoption  of  the  standard  and  subsequent 
amendment of our office lease. 

Lease  expense  for  operating  leases  is  recognized  on  a  straight-line  basis  over  the  lease  term  as  part  of  our  selling,  general  and  administrative 
expenses  and  our  research  and  development  expenses  on  our  consolidated  statements  of  operations.  Lease  expense  for  financing  leases  consists  of 
amortization of the right-of-use asset and interest on the lease liability as part of our research and development expenses on our consolidated statements of 
operations.

Fair Value of Financial Instruments

We  measure  and  record  cash  equivalents  at  fair  value  in  the  accompanying  financial  statements.  Fair  value  is  defined  as  the  exchange  price  that 
would be received for an asset or paid to transfer a liability, 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  carrying  amounts  of  our  short-term  financial  instruments,  which  include  cash  and  cash  equivalents,  royalty  and  milestone  receivable  and 

accounts payable, approximate their fair value due to their short maturities.

Debt Issuance Costs

Aptevo  defers  costs  related  to  debt  issuance  and  amortizes  these  costs  to  interest  expense  over  the  term  of  the  debt,  using  the  effective  interest 

method. Debt issuance costs are presented in the consolidated balance sheet as a reduction of the carrying amount of the debt liability.

Debt Modification

On March 30, 2021, we amended our Credit Agreement with MidCap Financial (First Amendment to Credit Agreement) and used $10 million of the 
proceeds  received  from  the  Royalty  Purchase  Agreement  to  pay  down  the  outstanding  principal  under  the  Credit  Agreement  from  $25  million  to  $15 
million. The amended Credit Agreement was accounted for under ASC 470-50, Debt Modifications and Extinguishments as a debt modification, rather than 
an extinguishment, based on a comparison of the present value of the cash flows under the terms of the debt immediately before and after the amendment, 
which resulted in a change of less than 10%. Unamortized issuance costs as of the date of modification will be amortized to interest expense using the 
effective interest method over the repayment term. 

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On  June  7,  2022,  we  further  amended  the  Credit  Agreement  with  MidCap  Financial  (Limited  Consent  and  Second  Amendment  to  Credit 
Agreement)  to  obtain  MidCap  Financial’s  limited  consent  to  amend  the  Royalty  Purchase  Agreement  with  HCR.  The  Limited  Consent  and  Second 
Amendment to Credit Agreement did not change future cash flows or other terms of the Credit Agreement.

Additionally, on August 30, 2022, we amended our Credit Agreement with MidCap Financial (Third Amendment to Credit Agreement) to replace 
the  LIBOR  benchmark  with  SOFR,  which  is  regulated  by  the  Federal  Reserve  Bank  of  New  York.  We  amended  our  Credit  Agreement  due  to  FCA's 
planned phase-out of one-month US Dollar LIBOR settings in 2023. Our Credit Agreement continues to bear base interest at a rate of 6.25% per annum 
plus SOFR, subject to a 1.50% SOFR floor and a 2.50% SOFR cap.

Liability Related to Sale of Royalties and Other Income (Expense)

On March 30, 2021, we entered into and closed a Royalty Purchase Agreement with HCR pursuant to which we sold to HCR the right to receive 
royalty payments made by Pfizer in respect of net sales of RUXIENCE. Under the terms of the Royalty Purchase Agreement, we received $35 million at 
closing  and  we  are  eligible  to  receive  additional  payments  in  the  aggregate  of  up  to  an  additional  $32.5  million  based  on  the  achievement  of  sales 
milestones in 2021, 2022 and 2023. 

On the date we entered into the transaction, we accounted for the Royalty Purchase Agreement with HCR as a debt-like instrument, amortized under 
the effective interest rate method over the life of the related expected royalty stream. The liabilities related to the sale of royalties and the debt amortization 
were based on our estimates of royalties expected to be paid over the life of the arrangement. We received the 2021 milestone payments in the collective 
amount of $10 million on March 8, 2022. The proceeds from these milestone payments, net of transaction costs, were recorded as an additional liability 
related to the sale of royalties on the consolidated balance sheet as of March 31, 2022 pursuant to ASC 470-10-25, Debt – Sales of Future Revenues or 
Various Other Measures of Income. 

On June 7, 2022, we entered into and closed an amendment to the Royalty Purchase Agreement (the Amendment to Royalty Purchase Agreement) 
(see Note 8) which removed all restrictions related to HCR’s rate of return, and it is no longer a sale of a specified percentage of royalty revenue. The 
Amendment to Royalty Purchase Agreement was accounted for under ASC 610-20, Gains and Losses from Derecognition of Nonfinancial Assets and ASC 
405-20, Liabilities – Extinguishment of Liabilities and the transaction is no longer considered a debt-like financing. 

As a result of the Amendment to Royalty Purchase Agreement, the Company recognized a gain of $37.2 million, which was the total balance of 
liability  related  to  the  sale  of  royalties  on  the  closing  date.  The  Amendment  to  Royalty  Purchase  Agreement  allowed  us  to  regain  full  compliance  with 
Nasdaq Listing Rule 5550(b)(1) in a way that was non-dilutive for our shareholders. No royalty revenue on net sales of RUXIENCE that are paid by Pfizer 
to HCR has been recognized subsequent to when we entered into the Amendment to Royalty Purchase Agreement. The royalty revenue included in the
consolidated  statements  of  operations  reflects  revenue  recorded  only  prior  to  the  second  quarter  of  2022  due  to  our  Amendment  to  Royalty  Purchase 
Agreement. Future Milestone Amounts will be accounted for as variable consideration and recognized as other income when such milestones are earned 
using  the  most  likely  method  in  accordance  with  ASC  610-20  Other  Income  —  Gains  and  Losses  from  the  Derecognition  of  Nonfinancial  Assets.  We 
received 2022 milestone payment of $2.5 million on February 28, 2023. The proceed from 2022 milestone payment was recorded as other income in the 
consolidated  statement  of  operations  for  the  year  ended  December  31,  2022.  The  Company  is  eligible  to  receive  additional  milestone  payment  of  $10 
million based on achievement of sales milestones in 2023.

Royalty Revenue

We  recognized  revenue  in  accordance  with  Accounting  Standards  Codification  Topic  606,  Revenue  from  Contracts  with  Customers  (ASC  606). 
Under ASC 606, an entity recognizes revenue when its customer obtains control of promised goods or services, in an amount that reflects the consideration 
that the entity expects to receive in exchange for those goods or services.  To determine revenue recognition for arrangements that an entity determines are 
within  the  scope  of  ASC  606,  the  entity  performs  the  following  five  steps:  (i)  identify  the  contract(s)  with  a  customer;  (ii)  identify  the  performance 
obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) 
recognize revenue when (or as) the entity satisfies a performance obligation.

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RUXIENCE Royalty Revenue

Aptevo’s royalty revenue exclusively related to royalties on Pfizer’s net sales of RUXIENCE. Royalty revenue for the period covered by this report 
reflects revenue recorded only prior to the second quarter of 2022 due to our Amendment to Royalty Purchase Agreement with HCR (see Note 8). As a 
result of the Amendment to Royalty Purchase Agreement, we ceased reporting as royalty revenue, royalties paid by Pfizer to HCR related to Pfizer’s sales 
of RUXIENCE. 

We recognized royalty revenue under ASC 606, which provides revenue recognition constraints by requiring the recognition of revenue at the later 
of the following: (1) when the subsequent sale or usage occurs or (2) when the performance obligation to which some or all of the sales-based or usage-
based  royalty  has  been  allocated  has  been  satisfied  (or  partially  satisfied).    We  satisfied  our  performance  obligation  prior  to  the  period  covered  by  this 
report, specifically in May 2011 when the original Collaboration and License Agreement between Trubion Pharmaceuticals and Wyeth was amended to 
remove  the  exclusivity/non-compete  restrictions  so  that  Pfizer  could  develop  a  CD20  biosimilar  product  in  exchange  for  a  one-time  payment  of  $2.5 
million  and  future  royalties  of  2.5%  on  any  CD20  biosimilar  product  commercialized  by  Pfizer  in  the  future.  We  do  not  have  future  performance 
obligations  under  this  agreement.  We  applied  the  royalty  recognition  constraint  required  under  the  guidance  for  sales-based  royalties,  which  requires  a 
sales-based royalty to be recorded no sooner than the underlying sale. Therefore, royalties on sales of products commercialized by Pfizer were recognized 
in the quarter the product is sold.

Given the royalty revenues were based on 2.5% of global net sales of RUXIENCE, the considerations were considered variable. Pfizer generally 
reported sales information to us within 60 days of quarter end. Unless we received finalized sales information for the respective quarter, we estimated the 
expected  royalty  proceeds  based  on  an  analysis  of  historical  experience,  analyst  expectations,  interim  data  provided  by  Pfizer,  including  their  publicly 
announced sales, and other publicly available information. Differences between actual and estimated royalty revenues were adjusted for in the period in 
which they became known, typically the following quarter. Revenue recorded in the period covered by this report represents actual royalty revenue given 
the timing of RUXIENCE sales reports received from Pfizer.  There was no significant financing component to the contract.

Research and Development Expenses

Research and development expenses are expensed as incurred. Research and development costs primarily consist of internal labor costs, fees paid to 
outside service providers and the costs of materials used in clinical trials and research and development. Other research and development expenses include 
facility, maintenance, and related support expenses.

A substantial portion of Aptevo’s preclinical studies and all of its clinical studies have been performed by third-party CROs. The Company reviews 
the activities performed by the CROs each period. For preclinical studies, the significant factors used in estimating accruals include the percentage of work 
completed to date and contract milestones achieved. For clinical study expenses, the significant factors used in estimating accruals include the number of 
patients enrolled and services provided but not yet invoiced. The Company’s estimates are highly dependent upon the timeliness and accuracy of the data 
provided by its CROs regarding the status of each program and total program spending and adjustments are made when deemed necessary.

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General and Administrative Expenses 

General  and  administrative  expenses  consist  primarily  of  personnel-related  costs  and  professional  fees  in  support  of  our  executive,  business 
development, finance, accounting, information technology, legal and human resource functions. Other costs include facility costs not otherwise included in 
research and development expense.

Stock-Based Compensation

We measure and recognize compensation expense for restricted stock units (RSUs), and stock options granted to our employees and directors based 
on the fair value of the awards as of the date of grant. The fair value of stock options is estimated at the date of grant using the Black-Scholes option pricing 
model that requires management to apply judgment and make estimates, including:

•

•

•

•

•

the expected term of the stock option award, which we calculate using the simplified method, as we have insufficient historical information 
regarding our stock options to provide a basis for an estimate;

the expected volatility of our underlying common stock, which we estimate based on the historical volatility of the historical and implied 
future volatility of our common stock;

the risk-free interest rate, which we based on the yield curve of U.S. Treasury securities with periods commensurate with the expected term 
of the options being valued;

the expected dividend yield, which we estimate to be zero  based  on  the  fact  that  we  have  never  paid  cash  dividends  and  have  no  present 
intention to pay cash dividends; and

the fair value of our common stock on the date of grant.

Stock-based  compensation  expense  for  RSUs  is  recognized  on  a  straight-line  basis  over  the  vesting  period  of  the  respective  award.  Stock-based 
compensation  expense  for  our  stock  options,  both  converted  and  Aptevo  granted,  is  recognized  on  a  straight-line  basis  over  the  vesting  period  of  the 
respective award. 

We  routinely  evaluate  the  appropriateness  of  the  forfeiture  rate  based  on  actual  forfeiture  experience,  analysis  of  employee  turnover,  and 

expectations of future option exercise behavior.

Income Taxes

Income taxes are accounted for using the liability method. Deferred tax assets and liabilities are recognized for future tax consequences attributable 
to differences between financial statement carrying amounts of existing assets and liabilities and their respective tax bases and net operating loss and tax 
credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which those 
temporary differences are expected to be recovered or settled.

Aptevo’s ability to realize deferred tax assets depends upon future taxable income, as well as the limitations discussed below. For financial reporting 
purposes, a deferred tax asset must be reduced by a valuation allowance if it is more likely than not that some portion or all of the deferred tax assets will 
not be realized prior to expiration. Aptevo considers historical and future taxable income, future reversals of existing taxable temporary differences, taxable 
income in prior carryback years, and ongoing tax planning strategies in assessing the need for valuation allowances. In general, if Aptevo determines that it 
is  more  likely  than  not  to  realize  more  than  the  recorded  amounts  of  net  deferred  tax  assets  in  the  future,  Aptevo  will  reverse  all  or  a  portion  of  the 
valuation  allowance  established  against  its  deferred  tax  assets,  resulting  in  a  decrease  to  the  provision  for  income  taxes  in  the  period  in  which  the 
determination is made. Likewise, if Aptevo determines that it is not more likely than not to realize all or part of the net deferred tax asset in the future, 
Aptevo will establish a valuation allowance against deferred tax assets, with an offsetting increase to the provision for income taxes, in the period in which 
the determination is made.

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Because tax laws are complex and subject to different interpretations, significant judgment is required. As a result, Aptevo makes certain estimates 
and assumptions, in (1) calculating Aptevo’s income tax expense, deferred tax assets and deferred tax liabilities, (2) determining any valuation allowance 
recorded  against  deferred  tax  assets  and  (3)  evaluating  the  amount  of  unrecognized  tax  benefits,  as  well  as  the  interest  and  penalties  related  to  such 
uncertain tax positions. Aptevo’s estimates and assumptions may differ significantly from tax benefits ultimately realized.

Segment Reporting

Operating segments are identified as components of an entity about which separate discrete financial information is available for evaluation by the 
chief  operating  decision  maker  (CODM),  or  decision-making  group,  in  making  decisions  on  how  to  allocate  resources  and  assess  performance.  The 
Company's CODM is the Chief Executive Officer, who views the Company's operations as one operating segment, which is discovery and development of 
novel oncology therapeutics.

Recently Adopted Accounting Pronouncement

In  March  2020,  the  Financial  Accounting  Standards  Board  (FASB)  issued  Accounting  Standard  Update  (ASU)  2020-04,  Reference  Rate  Reform 
(ASC 848) to provide optional expedients and exceptions for applying GAAP to loan and lease agreements, derivative contracts, and other transactions 
affected by the anticipated transition away from LIBOR toward new interest rate benchmarks. The FCA, which regulates LIBOR, phased out one-week and 
two-month US Dollar LIBOR settings on December 31, 2021. All other US Dollar LIBOR settings, including the overnight, one-month, three-month, six-
month and twelve-month, will be phased out on June 30, 2023.

We evaluated ASC 848, Reference Rate Reform, as part of our August 30, 2022 amendment to Credit Agreement with MidCap Financial (see Note 

7). The adoption of ASC 848 did not have a material impact on our consolidated financial statements.

Note 2. Discontinued Operations 

The accompanying financial statements include discontinued operations from two separate transactions: the sale of our hyperimmune business in 
2017,  from  which  we  received  a  payment  in  March  2021  related  to  the  collection  of  a  certain  accounts  receivable,  and  the  sale  of  our  Aptevo 
BioTherapeutics LLC business in February 2020.

On February 28, 2020, we entered into an LLC Purchase Agreement with Medexus, pursuant to which we sold all of the issued and outstanding 
limited liability company interests of Aptevo BioTherapeutics LLC, a wholly owned subsidiary of Aptevo. As a result of the transaction, Medexus obtained 
all rights, title and interest to the IXINITY product and the related Hemophilia B business and intellectual property.

The following table represents the components attributable to income from discontinued operations in the consolidated statements of operations (in 

thousands):

Deferred payments from Medexus

Gain on contingent consideration from Saol

Income from discontinued operations

For the Year Ended December 31,
2021
2022

1,013  
—  
1,013  

  $

491  
460  
951  

  $

The  LLC  Purchase  Agreement  with  Medexus  entitles  us  to  future  deferred  payments  and  royalties.  For  the  year  ended  December  31,  2022,  we 
collected an approximately $1.0 million deferred payment from Medexus related to IXINITY sales. For the year ended December 31, 2021, we collected 
$0.5 million related to the sale of the hyperimmune business to Saol as a result of the collection of certain accounts receivable and deferred payments of 
$0.5 million from Medexus related to IXINITY sales. Pursuant to our LLC Purchase Agreement with Medexus, the rate for deferred payments increased 
from 2% to 5% of net sales as of June 30, 2022. 

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Note 3. Collaboration Agreements

Alligator Bioscience AB 

On July 20, 2017, our wholly owned subsidiary Aptevo Research and Development LLC (Aptevo R&D), entered into a collaboration and option 
agreement  (the  Collaboration  Agreement)  with  Alligator  Bioscience  AB  (Alligator),  pursuant  to  which  Aptevo  and  Alligator  have  been  collaboratively 
developing  ALG.APV-527,  a  lead  bispecific  antibody  candidate  simultaneously  targeting  4-1BB  (CD137),  a  member  of  the  TNFR  superfamily  of  a 
costimulatory receptor found on activated T cells, and 5T4, a tumor antigen widely overexpressed in a number of different types of cancer.

We assessed the arrangement in accordance with ASC 606 and concluded that the contract counterparty, Alligator, is not a customer. As such the 
arrangement is not in the scope of ASC 606 and is instead treated as a collaborative agreement under ASC 808 – Collaborative Arrangements (ASC 808). 
In accordance with ASC 808, we concluded that because the Collaboration Agreement is a cost sharing agreement, there is no revenue. 

For  the  years  ended  December  31,  2022  and  2021,  we  recorded  approximately  $1.7  million  and  $0.1  million  in  our  research  and  development 

expense related to the collaboration arrangement, respectively.  

Note 4. Fair Value Measurements

The  Company’s  estimates  of  fair  value  for  financial  assets  and  financial  liabilities  are  based  on  the  framework  established  in  the  fair  value 
accounting guidance. The framework is based on the inputs used in valuation, gives the highest priority to quoted prices in active markets and requires that 
observable inputs be used in the valuations when available. The disclosure of fair value estimates in the fair value accounting guidance hierarchy is based 
on whether the significant inputs into the valuation are observable. In determining the level of the hierarchy in which the estimate is disclosed, the highest 
priority is given to unadjusted quoted prices in active markets and the lowest priority to unobservable inputs that reflect the Company’s significant market 
assumptions. The level in the fair value hierarchy within which the fair value measurement is reported is based on the lowest level input that is significant 
to the measurement in its entirety. The three levels of the hierarchy are as follows:

Level 1— Quoted prices in active markets for identical assets and liabilities;

Level 2— Inputs other than quoted prices in active markets, that are either directly or indirectly observable; and,

Level 3— Unobservable inputs that are supported by little or no market activity, and that are significant to the fair value of the assets or liabilities.

At December 31, 2022 and 2021, we had $21.6 million and $41.2. million in money market funds, respectively. The carrying amounts of our money 

market funds approximate their fair value. At December 31, 2022 and 2021, we did not have any Level 2 or Level 3 assets or liabilities.

Note 5. Cash, Cash Equivalents, and Restricted Cash

The Company’s cash equivalents are highly liquid investments with a maturity of 90 days or less at the date of purchase and investments in money 

market funds. Restricted cash are time deposits, which include securing letters of credit.

The following table shows our cash, cash equivalents and current restricted cash as of December 31, 2022 and  2021:

(in thousands)
Cash
Cash equivalents
Restricted cash
Total cash, cash equivalents, and restricted cash

For the Year Ended December 31,

2022

2021

  $

  $

1,066     $
21,569      
—      
22,635     $

3,841  
41,203  
1,259  
46,303  

89

 
 
 
 
 
 
 
   
 
   
   
 
Note 6. Property and equipment, net

Property and equipment consist of the following: 

(in thousands)
Leasehold improvements
Furniture and equipment
Property and equipment, gross
Less: Accumulated depreciation
Total property and equipment, net

For the Year Ended December 31,

2022

2021

  $

  $

2,228     $
12,260      
14,488      
(13,026 )    
1,462     $

2,228  
12,430  
14,658  
(12,279 )
2,379  

Depreciation expense for the years ended December 31, 2022 and 2021 was $0.9 million and $1.1 million, respectively.

Note 7. Debt

Credit Agreement

On August 5, 2020, we entered into a Credit Agreement with MidCap Financial. The Credit Agreement provided us with up to $25.0  million  of 
available  borrowing  capacity  under  a  term  loan  facility.  The  full  $25.0  million  was  drawn  on  the  closing  date  of  the  Credit  Agreement.  The  term  loan 
facility has a 48 month term, is interest-only for the first 18 months, with straight-line amortization for the remaining 30 months and bears interest at a rate 
of one month LIBOR plus 6.25% per annum, subject to a 1.50% LIBOR floor and a 2.50% LIBOR cap.  Certain  assets  of  the  Company  are  pledged  as 
collateral under the terms of the Credit Agreement. The FCA, which regulates LIBOR, phased out one-week and two-month US Dollar LIBOR settings on 
December 31, 2021. All other US Dollar LIBOR settings, including the overnight, one-month, three-month, six-month and twelve-month, will be phased 
out on June 30, 2023. Our 2020 Credit Agreement with MidCap Financial originally referenced one-month LIBOR and also provided that we may amend 
the Credit Agreement to reflect an alternative rate of interest upon the phase out of LIBOR. 

On  November  6,  2020,  Kevin  Tang  and  his  related  entities  filed  a  statement  on  Schedule  13D  to  report  the  purchase  of  1,760,000 shares of the 
Company’s common stock, which at the time represented approximately 54% of the Company’s issued and outstanding shares of the Company’s common 
stock. This acquisition of voting stock triggered a change in control, resulting in an Event of Default under Section 10.1(a)(ii) of the Credit Agreement. On 
November 10, 2020, the Company obtained a waiver from MidCap Financial pursuant to which, among other things, MidCap Financial waived such Event 
of Default and MidCap Financial and the Company agreed that an immediate event of default under the Credit Agreement will be deemed to have occurred 
in the event that (a) a majority of the seats on the Company’s board of directors are occupied by persons who were neither (i) nominated by the Company’s 
board of directors nor (ii) appointed by the directors so nominated, and (b) Tang has appointed the majority of the Company’s board of directors. No other 
events of default have occurred with respect to the Credit Agreement. 

On March 30, 2021, we amended our Credit Agreement with MidCap Financial and used $10.0 million of the proceeds received from the Royalty 
Purchase Agreement to pay down the outstanding principal under the Credit Agreement from $25.0 million to $15.0 million. A fee of $0.6 million was paid 
by  the  Company  to  MidCap  Financial  in  connection  with  the  amendment  in  lieu  of  the  formula-based  fee  previously  required.  $10.0  million  of  the 
remaining $15.0 million principal balance was paid on March 29, 2022 and we incurred additional $0.6 million prepayment fees. Beginning March 1, 2022, 
monthly repayment of the remaining $5.0 million of principal commenced and will continue for the final 30 months of the loan term. The term loan facility 
includes  additional  payment  provisions  if  milestones  related  to  IXINITY  under  the  LLC  Purchase  Agreement  with  Medexus  or  royalties  related  to 
RUXIENCE under the Royalty Purchase Agreement with HCR are sold during the term of the loan. If the Company sells the IXINITY deferred payment 
stream and milestones prior to full repayment of this $5.0 million principal amount, under the agreement with MidCap Financial, we will be required to use 
the  proceeds  from  the  sale  to  pay  down  the  outstanding  loan  principal  balance.  MidCap  Financial  also  released  its  security  interest  in  the  RUXIENCE 
royalty payments. 

The  amended  Credit  Agreement  was  accounted  for  as  a  debt  modification,  rather  than  an  extinguishment,  based  on  a  comparison  of  the  present 

value of the cash flows under the terms of the debt immediately before and after the 

90

 
 
 
 
 
 
 
   
 
   
   
   
 
 
amendment, which resulted in a change of less than 10%. Unamortized issuance costs as of the date of modification will be amortized to interest expense 
using the effective interest method over the repayment term.

On  June  7,  2022,  we  further  amended  the  Credit  Agreement  with  MidCap  Financial  to  obtain  MidCap  Financial’s  limited  consent  to  amend  our 
Royalty Purchase Agreement with HCR. The Limited Consent and Second Amendment to Credit Agreement did not change future cash flows or other 
terms of the Credit Agreement.

Additionally, on August 30, 2022, we amended our Credit Agreement with MidCap Financial to replace the LIBOR benchmark with SOFR, which 
is  regulated  by  the  Federal  Reserve  Bank  of  New  York.  We  amended  our  Credit  Agreement  due  to  FCA’s  planned  phase-out  of  one-month  US  Dollar 
LIBOR settings in 2023. Our Credit Agreement continues to bear base interest at a rate of 6.25% per annum plus SOFR, subject to a 1.50% SOFR floor and 
a 2.50% SOFR cap.

As of December 31, 2022, we classified $2.0 million of the $3.5 million principal of the amended Credit Agreement to current portion of long-term 
debt  on  the  consolidated  balance  sheet.  For  the  years  ended  December  31,  2022  and  2021,  the  Company  paid  $0.6 million and $1.4  million  in  interest 
expense pursuant to our Credit Agreement. 

This facility is subject to a subjective acceleration clause that could be invoked by MidCap Financial upon the occurrence of any event MidCap 

Financial deems to have a material adverse effect on our ability to repay the lender.

Future principal, interest, and other related fee payments in connection with the Credit Agreement as of December 31, 2022 are as follows: 

(in thousands)
2023
2024
Total

  $

  $

2,279  
1,727  
4,006  

Note 8. Liability Related to Sale of Royalties

In  March  2021,  we  entered  into  and  closed  the  Royalty  Purchase  Agreement  with  HCR  pursuant  to  which  we  sold  to  HCR  the  right  to  receive 
royalty payments made by Pfizer in respect of global net sales of RUXIENCE. Under the terms of the agreement, we received $35.0 million at closing and 
we are eligible to receive additional payments in the aggregate of up to an additional $32.5 million based on the achievement of sales milestones in 2021, 
2022 and 2023 (up to $10 million and $12.5 million in 2021 and 2022, respectively and $10 million in 2023).

Due to the nature of the transaction, which included a cap on HCR’s rate of return, constituting continuing involvement under the Collaboration and 
License  Agreement  originally  between  Trubion  and  Wyeth,  we  recorded  a  liability  related  to  the  proceeds  received  from  HCR  of  $35.0  million,  net  of 
transaction costs of $1.1 million. Further, we received proceeds related to the 2021 milestone of $10.0 million, net of transaction costs of $0.5 million, and 
recorded additional liability related to sale of royalties. We recognized royalty revenue on net sales of RUXIENCE and recorded the royalty payments to 
HCR as a reduction of the liability when paid. We received the 2021 milestone payments in the collective amount of $10.0 million on March 8, 2022. The 
proceeds from these milestone payments, net of transaction costs, were recorded as an additional liability related to the sale of royalties on the consolidated 
balance sheet as of March 31, 2022 pursuant to ASC 470-10-25, Debt – Sales of Future Revenues or Various Other Measures of Income.

On April 1, 2022, the Company received a letter from Nasdaq indicating that it was not in compliance with Nasdaq Listing Rule 5550(b)(1). On 
June 7, 2022, we entered into and closed an amendment to our Royalty Purchase Agreement, resulting in the Company recognizing a $37.2 million gain, 
which was the total balance of liability related to the sale of royalties on the closing date. The Amendment to Royalty Purchase Agreement allowed us to
regain full compliance with Nasdaq Listing Rule 5550(b)(1) in a way that was non-dilutive for our shareholders. Pursuant to the Amendment to Royalty 
Purchase  Agreement,  we  agreed  to  forego  our  right  to  receive  50%  of  incremental  RUXIENCE  royalty  revenue  after  HCR  received  aggregate  royalty 
payments totaling 190% of the Investment Amount plus Milestone Amounts to the extent paid by HCR. The Amendment to Royalty Purchase Agreement 
eliminated all of our continuing involvement with the cash generating activities related to the royalties and removed all restrictions related to the rate of 
return and was therefore accounted for under ASC 610-20, Gains and Losses from Derecognition of Nonfinancial Assets and ASC 405-20,  Liabilities  – 
Extinguishment of Liabilities.

91

 
 
 
 
 
 
 
 
The royalty revenue included in the consolidated statements of operations reflects revenue recorded only prior to the second quarter of 2022 due to 
our Amendment to Royalty Purchase Agreement. Future milestone payments will be accounted for as variable consideration and recognized using the most 
likely  method  in  accordance  with  ASC  610-20  Other  Income  —  Gains  and  Losses  from  the  Derecognition  of  Nonfinancial  Assets.  We  received  2022 
milestone payment of $2.5 million on February 28, 2023. The proceeds from 2022 milestone payment was recorded as other income in the consolidated 
statement  of  operations  for  the  year  ended  December  31,  2022.  We  are  eligible  to  receive  additional  milestone  payment  of  $10  million  based  on 
achievement of sales milestones in 2023.

The following table presents the changes in the liability in the year related to the sale of royalties under the Royalty Purchase Agreement with HCR 

(in thousands):

Liability related to sale of royalties, beginning balance
Proceeds from sale of royalties, net of transaction costs
Proceeds from milestone payments, net of transaction costs
Non-cash interest expense
RUXIENCE royalties paid by Pfizer to HCR
Gain from extinguishment of liability related to sale of royalties
Liability related to sale of royalties, ending balance
Current portion of liability related to sale of royalties
Liability related to sale of royalties, non-current

Note 9. Leases and Contingencies

Office Space Lease – Operating

For the year ended December 31,

2022

2021

  $

31,045    

$

—  
9,500  
3,416  
(6,779 )
(37,182 )
—  
—  
—    

$

  $

—  
33,900  
—  
5,772  
(8,627 )
—  
31,045  
(15,465 )
15,580  

We have an operating lease related to our office and laboratory space in Seattle, Washington. This lease was amended in March 2019 to extend the 
term through April 2030 and provide two options to extend the lease term, each by five years, as well as a one-time option to terminate the lease in April 
2023, with nine months’ notice, or by July 2022. We had previously determined to record lease liability and ROU asset through April 30, 2023 given we 
were not reasonable certain to not exercise the termination option.

On May 26, 2022, we amended our office and laboratory lease to remove the one-time termination option. In exchange for removing the termination 
option, we received six months of free rent. As a result, we recorded an additional $4.4 million of lease liability and right-of-use asset on the consolidated 
balance sheet on the date of the amendment. As of December 31, 2022, we are not reasonably certain to exercise the two options to extend the lease term.
Therefore, pursuant to our May 26, 2022, amendment, we recorded our lease liability through April 30, 2030.

For the years ended December 31, 2022 and 2021, we recorded $0.7 million and $0.8 million, respectively, related to variable expense due to true 

ups of operating costs or real estate taxes.

Equipment Leases - Operating and Financing

As of December 31, 2022, we did not have any operating or financing leases for equipment.

92

 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
 
Components of lease expense:

(in thousands)
Operating lease cost
Total lease cost

Right-of-use assets acquired under operating leases:

(in thousands)
Operating leases, excluding Seattle office lease
Seattle office lease, including amendment
Total right-of-use assets

Lease payments:

(in thousands)
For operating leases

Future minimum payments as of December 31, 2022 are as follows:

(in thousands)
2023
2024
2025
2026 and beyond
Total future minimum lease payments
Less: imputed interest
Total

For the year ended
December 31,

2022

For the year ended
December 31,

2021

1,277     $
1,277     $

1,556  
1,556  

As of December 31,

As of December 31,

2022

2021

—     $

5,303    
5,303     $

7  
1,577  
1,584  

  $
  $

  $

  $

For the year ended
December 31,

2022

For the year ended
December 31,

2021

  $

895     $

1,387  

1,147  
1,376  
1,376  
5,963  
9,862  
(3,402 )
6,460  

  $

As of December 31, 2022, the long-term and current portion of the lease liabilities were $6.1 million and $0.4 million, respectively. As of December 

31, 2021, the long-term and current portion of the lease liabilities were $1.3 million and $1.0 million, respectively.

As of December 31, 2022, the weighted average remaining lease term and weighted discount rate for operating leases was 7.3 years and 12.03%. As 

of December 31, 2021, the weighted average remaining lease term and weighted discount rate for operating leases was 1.3 years and 14.46%.

Note 10. Net Income (Loss) per Share

Basic net income (loss) per share is calculated by dividing the net income (loss) by the weighted average number of common shares outstanding for 
the period. Diluted net income (loss) per share is computed by dividing the net income (loss) by the weighted average number of common share equivalents 
outstanding for the period using the as-if converted method. For the purpose of this calculation, warrants, stock options and restricted stock units (RSUs) 
are only included in the calculation of diluted net income (loss) per share when their effect is dilutive.

93

 
 
 
 
 
 
   
 
 
 
   
 
 
 
 
 
   
 
 
   
 
 
 
 
 
 
 
 
 
   
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We utilize the control number concept in the computation of diluted earnings per share to determine whether potential common stock instruments 
are dilutive. The control number used is loss from continuing operations or income from discontinued operations. The control number concept requires that 
the  same  number  of  potentially  dilutive  securities  applied  in  computing  diluted  earnings  per  share  from  continuing  operations  be  applied  to  all  other 
categories of income or loss, regardless of their anti-dilutive effect on such categories.

Common stock equivalents include warrants, stock options and unvested RSUs.

The following table presents the computation of basic and diluted net income (loss) per share (in thousands, except share and per share amounts):

Net income (loss) from continuing operations
Income from discontinued operations
Net income (loss)

Basic and diluted net income (loss) per share from continuing operations:

Basic

Diluted

Basic and diluted net income per share from discontinued operations:

Basic

Diluted

Shares used in calculation

Basic
Diluted

The following table represents all potentially dilutive shares:

(in thousands, except for per share amounts)
Warrants
Outstanding options to purchase common stock
Unvested RSUs

Note 11. Equity

Common Stock

  $

  $

  $
  $

  $
  $

For the Year Ended December 31,
2021
2022

7,014     $
1,013    
8,027     $

(29,408 )
951  
(28,457 )

1.37  

1.37  

0.20  

0.20  

  $
  $

  $
  $

(6.27 )

(6.27 )

0.20  

0.20  

5,100,310  
5,102,914  

4,687,952  
4,687,952  

As of  December 31,

2022

2021

351      
364      
224      

351  
334  
57  

The  Company  issued  warrants  to  purchase  shares  of  our  common  stock  outstanding  related  to  our  March  11,  2019  public  offering.  For  the  year 
ended December 31, 2022, the Company did not have any of its warrants exercised. For the year ended December 31, 2021, certain of the holders of the 
Company’s warrants exercised warrants with a strike price of $18.20 per share, resulting in the issuance of 54,105 shares of the Company’s common stock 
and  aggregate  proceeds  to  the  Company  of  approximately  $1.0  million.    As  of  December  31,  2022  and  2021,  there  were  warrants  to  purchase  350,589 
shares of common stock outstanding.

For the year ended December 31, 2022, we issued 16,809 shares of our common stock due to the vesting of RSUs. For the year ended December 31, 

2021, we did not issue any common stock due to the vesting of RSUs.

For the year ended December 31, 2022, an immaterial number of shares of stock options were exercised. For the year ended December 31, 2021, we 

received proceeds of $0.2 million upon the exercise of stock options which resulted in the issuance of 26,082 shares of common stock.

94

 
 
 
 
 
 
 
 
 
 
   
 
 
   
 
   
 
   
 
   
 
   
 
   
 
 
   
 
   
 
   
 
   
 
   
   
   
   
 
 
 
 
 
   
 
   
   
   
 
 
 
 
Equity Distribution Agreement

On December 14, 2020, we entered into an Equity Distribution Agreement with Piper Sandler. The Equity Distribution Agreement provides that, 
upon the terms and subject to the conditions set forth therein, we may issue and sell through Piper Sandler, acting as sales agent, shares of our common
stock,  $0.001  par  value  per  share  having  an  aggregate  offering  price  of  up  to  $50.0  million.  This  offering  supersedes  and  replaces  the  program  we 
commenced  in  December  2017.  We  have  no  obligation  to  sell  any  such  shares  under  the  Equity  Distribution  Agreement.  The  sale  of  such  shares  of 
common stock by Piper Sandler will be effected pursuant to a Registration Statement on Form S-3 which we filed on December 14, 2020. For the year 
ended December 31, 2022, we issued 1,452,065 shares of our common stock at an average share price of $4.92 under the Equity Distribution Agreement. 
We received $7.0  million  in  proceeds  from  issuance  of  these  shares.  We  did  not  issue  any  shares  under  the  Equity  Distribution  Agreement  for  the  year 
ended December 31, 2021.

Lincoln Park Purchase Agreement

On February 16, 2022, we entered into a Purchase Agreement (2022 Purchase Agreement) and a Registration Rights Agreement with Lincoln Park. 
The  2022  Purchase  Agreement  and  Registration  Rights  Agreement  replaced  our  2018  Purchase  Agreement  and  Registration  Rights  Agreement  with 
Lincoln Park. Under the 2022 Purchase Agreement, Lincoln Park committed to purchase up to $35.0 million of our common stock over a 36-month period 
commencing after the satisfaction of certain conditions, which are within our control, as set forth in the Purchase Agreement. The purchase price per share 
will be based on prevailing market prices; provided, however, that the prevailing market price is not below $1.00. We agreed to and issued 99,276 shares of 
our common stock to Lincoln Park for no cash consideration as an initial fee for its commitment to purchase shares of our common stock under the 2022 
Purchase Agreement. 

For in the year ended December 31, 2022, we did not  issue  any  shares  of  common  stock  for  cash  consideration  to  Lincoln  Park  under  the  2022 
Purchase  Agreement.  For  the  year  ended  December  31,  2021,  the  Company  issued  407,047  shares  of  common  stock  to  Lincoln  Park  under  the  2018 
Purchase Agreement and received $10.2 million in proceeds from issuance of these shares.

Rights Plan

On November 8, 2020, our Board of Directors (Board) approved and adopted a Rights Agreement by and between the Company and Broadridge 
Corporate Issuer Solutions, Inc., as rights agent, pursuant to which the Board declared a dividend of one preferred share purchase right (each, a Right) for 
each outstanding share of the Company’s common stock held by stockholders as of the close of business on November 23, 2020.  When exercisable, each 
Right  initially  would  represent  the  right  to  purchase  from  the  Company  one  one-thousandth  of  a  share  of  a  newly-designated  series  of  preferred  stock, 
Series A Junior Participating Preferred Stock, par value $0.001 per share, of the Company, at an exercise price of $400.00  per  one  one-thousandth  of  a 
Series A Junior Participating Preferred Share, subject to adjustment. Subject to various exceptions, the Rights become exercisable in the event any person 
(excluding  certain  exempted  or  grandfathered  persons)  becomes  the  beneficial  owner  of  ten  percent  (10%)  or  more  of  the  Company’s  common  stock 
without  the  approval  of  the  Board.  The  Rights  Agreement  was  amended  on  November  4,  2021  to  extend  the  expiration  date  of  such  agreement  from 
November 8, 2021 to November 5, 2022 and further amended on November 4, 2022 to extend the expiration of such agreement to November 4, 2023.

2016 Stock Incentive Plan

On August 1, 2016, the Company adopted the 2016 Stock Incentive Plan (the 2016 SIP). A total of 0.2 million shares of our common stock have 

been authorized for issuance under the 2016 SIP in the form of equity stock options.

On  May  31,  2017,  at  the  2017  Annual  Meeting  of  Stockholders  (Annual  Meeting),  the  Company’s  stockholders  approved  the  amendment  and 
restatement  of  the  Company’s  2016  SIP  (Restated  2016  Plan)  to,  among  other  things,  increase  the  number  of  authorized  shares  issuable  by  0.1  million 
shares of our common stock. The Restated 2016 Plan was previously approved, subject to stockholder approval, by the Board of Directors of the Company. 

95

 
2018 Stock Incentive Plan

On June 1, 2018, at the 2018 Annual Meeting of the Stockholders, the Company’s stockholders approved a new 2018 Stock Incentive Plan (2018 
SIP), which replaced the Restated 2016 Plan on a go-forward basis. All stock options, RSUs or other equity awards granted subsequent to June 1, 2018 
have  been  and  will  be  issued  out  of  the  2018  SIP,  which  has  0.3  million  shares  of  our  common  stock  authorized  for  issuance.  The  2018  Plan  became 
effective immediately upon stockholder approval at the 2018 Annual Meeting of the Stockholders. Any shares subject to outstanding stock awards granted 
under the 2016 SIP that (a) expire or terminate for any reason prior to exercise or settlement; (b) are forfeited because of the failure to meet a contingency 
or  condition  required  to  vest  such  shares  or  otherwise  return  to  the  Company;  or  (c)  otherwise  would  have  returned  to  the  2016  SIP  for  future  grant 
pursuant to the terms of the 2016 Plan (such shares, the “Returning Shares”) will immediately be added to the share reserve under the 2018 SIP as and 
when such shares become Returning Shares, up to a maximum of 0.3 million shares.

On  June  7,  2022,  at  the  2022  Annual  Meeting  of  Stockholders,  our  stockholders  approved  the  Amended  and  Restated  2018  SIP  to  increase  the 
number of shares authorized for issuance under the 2018 SIP by 0.5 million shares of common stock. As of December 31, 2022, there are less than 0.4 
million shares available to be granted under the 2018 SIP.

Stock  options  and  RSUs  under  the  Amended  and  Restated  2018  SIP  generally  vest  pro  rata  over  a  one-year  or  three-year  period.  Stock  options 
terminate ten years from the grant date, though the specific terms of each grant are determined individually. The Company’s executive officers, members of 
our  board  of  directors,  and  certain  other  employees  and  consultants  may  be  awarded  options  and/or  RSUs  with  different  vesting  criteria,  and  awards 
granted to non-employee directors will vest over a one-year period. Option exercise and RSU grant prices for new awards granted by the Company equal 
the closing price of the Company’s common stock on the Nasdaq Capital Market on the date of grant. 

Stock-Based Compensation Expense

Stock-based  compensation  expense  includes  amortization  of  stock  options  and  RSUs  granted  to  employees  and  non-employees  and  has  been 

reported in our consolidated statements of operations as follows:

(in thousands)
Research and development
General and administrative
Total stock-based compensation expense

For the Year Ended December 31,
2021
2022

  $

  $

196  
1,606  
1,802  

  $

  $

510  
1,133  
1,643  

The  Company  accounts  for  stock-based  compensation  by  measuring  the  cost  of  employee  services  received  in  exchange  for  all  equity  awards 
granted  based  on  the  fair  value  of  the  award  as  of  the  grant  date.  The  Company  recognizes  the  compensation  expense  over  the  vesting  period.  All 
assumptions used to calculate the grant date fair value of non-employee equity awards are generally consistent with the assumptions used for equity awards 
granted to employees. In the event the Company terminates any of its consulting agreements, the unvested equity underlying the agreements would also be 
cancelled.

Stock Options

Aptevo utilizes the Black-Scholes valuation model for estimating the fair value of all stock options granted. Set forth below are the assumptions 

used in valuing the stock options granted:

Expected dividend yield
Expected volatility
Risk-free interest rate
Expected average life of options

96

For the Year Ended December 31,
2021
2022
0.00%
0.00%
99.15%
106.24%
0.61%
1.71%
5 years
5 years

 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Management  has  applied  an  estimated  forfeiture  rate  of  30%  and  23%  for  the  year  ended  December  31,  2022  and  2021,  respectively.  Expected 
volatility increased, as our stock price fluctuated from a low of $2.00 to a high of $8.42 throughout the year ended December 31, 2022, compared to a low 
of $6.48 to a high of $40.59 for the year ended December 31, 2021. 

The following is a summary of option activity for the year ended December 31, 2022:

Outstanding at December 31, 2021

Granted
Exercised
Forfeited

Outstanding at December 31, 2022

Exercisable at December 31, 2022

Vested and expected to vest at December 31, 2022

Number of
Shares

Weighted-
Average

334,412     $
69,588      
(85 )    
(39,649 )    
364,266      
187,838     $
321,078     $

Exercise Price    
19.17      
5.54      
6.97      
25.61      
15.77      
13.73      
15.77      

Weighted-
Average
Remaining 
Term

Aggregate
Intrinsic
Value (in 
thousands)

8.70     $
—      
—      
—      
7.39      
6.33      
7.21     $

43,210  
—  
21  
—  
—  

—  

—  

As of December 31, 2022, we had $1.9 million of unrecognized compensation expense related to options expected to vest over a weighted average 
period of 1.3 years. The weighted-average grant date fair value per share of options granted during the years ended December 31, 2022 and 2021 was $4.36 
and $23.02, respectively. The aggregate intrinsic value of options exercised for the years ended December 31, 2022 and 2021 was $0 and $0.4  million, 
respectively. The total fair value of stock options vested for the years ended December 31, 2022 and 2021 was $1.3 million and $1.6 million, respectively.

The aggregate intrinsic value in the table above represents the total pretax intrinsic value (the difference between the closing stock price of Aptevo’s 
common stock on the last trading day of December 2022 and the exercise price, multiplied by the number of in the money options) that would have been 
received by the option holders had all the option holders exercised their options on the last trading day of the quarter. 

Restricted Stock Units

The following is a summary of restricted stock activity for the year ended December 31, 2022:

Outstanding at December 31, 2021

Granted
Vested
Forfeited

Outstanding at December 31, 2022

Expected to Vest

Number of
Units

Weighted
Average Fair
Value per Unit

56,810     $

199,604    
(17,903 )  
(14,736 )  
223,775     $
223,775     $

30.66  
5.05  
30.43  
21.08  
8.47  

8.47  

As  of  December  31,  2022,  we  had  $1.5  million  of  unrecognized  stock-based  compensation  expense  related  to  RSUs  expected  to  vest  over  a 
weighted average period of 1.6 years. As of December 31, 2021, we had $1.4 million of unrecognized stock-based compensation expense related to RSUs 
expected to vest over a weighted average period of 2.2 years. 

The fair value of each RSU has been determined to be the closing trading price of the Company’s common stock on the date of grant as quoted on 

the Nasdaq Capital Market.

97

 
 
 
 
 
   
 
 
 
 
   
 
 
 
   
   
   
   
   
   
   
 
 
 
 
 
 
   
 
 
 
   
   
 
   
 
   
 
   
   
 
 
Warrants

In March 2019, as part of a public offering, we issued warrants to purchase up to 1,725,000 shares of our common stock, 1,571,429 of which have 
an exercise price of $18.20 per share and have a five-year life, and 153,571 of pre-funded warrants with an exercise price of $0.14 per share. The pre-
funded warrants had a ten-year life and would have expired on March 11, 2029; however, all of the pre-funded warrants were exercised in March 2019. We 
determined  the  warrants  do  not  meet  liability  classification  pursuant  to  ASC  480  –  Distinguishing Liabilities from Equity.  These  are  therefore  included 
within equity on our consolidated balance sheets. For the year ended December 31, 2022, the Company did not have any of its warrants exercised. For the 
year ended December 31, 2021, certain of the holders of the Company’s warrants exercised warrants with a strike price of $18.20 per share, resulting in the 
issuance of 54,105 shares of the Company’s common stock and aggregate proceeds to the Company of approximately $1.0 million. As of December 31, 
2022, there were warrants to purchase 350,589 shares of common stock outstanding. 

Note 12. 401(k) Savings Plan

Aptevo has established a defined contribution savings plan under Section 401(k) of the Internal Revenue Code, as amended. The 401(k) Plan covers 
all employees. Under the 401(k) Plan, employees may make elective salary deferrals. Aptevo currently provides for matching of qualified deferrals up to 
50% of 401(k) employee deferral contributions, based on a maximum employee deferral rate of 6% of compensation. During the year ended December 31, 
2022 and 2021, Aptevo’s related share of matching contributions was approximately $0.2 million. 

Note 13. Income Taxes 

We did not have an income tax benefit or income tax expense from continuing operations in the years ended December 31, 2022 and 2021.

The components of income (loss) before income taxes were as follows (in thousands):

(in thousands)
US
Income (loss) from continuing operations before benefit from income taxes

Year ended December 31,

2022

2021

  $
  $

7,014     $
7,014     $

(29,408 )
(29,408 )

98

 
 
 
 
 
 
 
 
 
 
 
 
The  tax  effects  of  temporary  differences  that  give  rise  to  significant  portions  of  the  deferred  tax  assets  and  deferred  tax  liabilities  are  presented 

below: 

(in thousands)

Federal losses carryforward
Capitalized research expenditures
Intangible assets
Stock-based compensation
State losses carryforward
Other deferred tax assets
Other tax credits
Lease Liabilities
Fixed Assets
Gain related to sale of future royalties
Deferred tax assets, gross
Valuation allowance
Deferred tax assets, net of valuation
ROU Assets
Deferred tax liability
Net deferred tax assets

For the Year Ended December 31,
2021
2022

32,793     $
3,361      
195      
912      
3,799      
496      
4,852      
1,371      
442      
2,016      
50,237      
(49,113 )    
1,124      
(1,124 )    
(1,124 )    
—     $

33,520  
—  
235  
986  
3,743  
2,023  
3,253  
496  
456  
5,866  
50,578  
(50,245 )
333  
(333 )
(333 )
—  

  $

  $

The Company evaluated the positive and negative evidence bearing upon the realizability of its deferred tax assets. Based on the Company’s history 
of operating losses, including a three-year cumulative loss position as of December 31, 2022, the Company has concluded that it is more likely than not that 
the benefit of its deferred tax assets will not be realized. Accordingly, the Company provided a full valuation allowance for its net deferred tax assets as of 
December 31, 2022 and 2021. The valuation allowance decreased by $1.1 million during the year ended December 31, 2022. The decrease in the valuation 
allowance during the year ended December 31, 2022 was due primarily to a decrease in deferred tax assets resulting from the current year write-off of DTA 
related to the sale of the Company’s RUXIENCE royalty rights to HCR and decrease in Section 163(j) limitation, which was utilized at return time, the 
impact of which was partially offset by orphan drug credit generated during the period, Section 174 capitalized research expenditures, and the generation of 
federal and state NOLs during the period.

As of December 31, 2022 and 2021, we have recorded gross federal net operating losses (NOL) carryforwards of approximately $156.2 and $159.6 
million, respectively, gross state NOL carryforwards of approximately $71.1 and $70.3 million, respectively, and tax credit carryforwards of $4.9 million 
and $3.3 million, respectively. Approximately $15.1 million of  federal losses and credits would begin to expire in 2037, while $141.1 million of federal 
losses may be carried forward indefinitely. The state net operating losses will begin to expire in varying periods.

The Company completed an IRC Section 382/383 study on its federal and state tax attributes based on an ownership change that occurred during 
2021. Based on the study, there are not any permanent limitations on our ability to use federal and state net operating loss carryforwards and tax credits. We 
may experience ownership changes in the future as a result of subsequent shifts in our stock ownership, some of which may be outside of our control. If an 
ownership change occurs in the future, our ability to use our net operating loss carryforwards and credits could be limited.

99

 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
 
The Company files income tax returns in the U.S. and several state jurisdictions and are open to review by taxing authorities for the 2016 tax filings 

and thereafter.

We  are  subject  to  the  accounting  guidance  for  uncertain  income  tax  positions.  We  believe  that  our  income  tax  positions  and  deductions  will  be 
sustained on audit and do not anticipate any adjustments that will result in a material adverse effect on our financial condition, results of operations, or cash 
flow. Our policy for recording interest and penalties associated with audits and uncertain tax positions is to record such items as a component of income tax 
expense, and amounts recognized to date are insignificant. No uncertain income tax positions are recorded, and we do not expect our uncertain tax position 
to change during the next twelve months.

The reconciliation of the federal statutory income tax rate to the Company’s effective income tax from continuing operations is as follows:

Federal tax at statutory rates
State taxes, net of federal benefit
Change in valuation allowance
Tax credits
Permanent differences
Stock-based compensation
Other
Total income tax benefit

Note 14. Subsequent Events

Year ended December 31,

2022

2021

21.0 %   
-1.8 %   
-12.5 %   
-15.3 %   
0.8 %   
10.1 %   
-2.3 %   
0.0 %   

21.0 %
-1.0 %
-20.9 %
3.2 %
0.0 %
-1.3 %
-1.0 %
0.0 %

We issued 730,913 shares of our common stock after December 31, 2022 but before the issuance of this report, which would have further diluted our 
net income per share had they been issued prior to December 31, 2022. These shares were issued pursuant to our Equity Distribution Agreement with Piper 
Sandler.

On February 28, 2023, the Company received a $2.5 million milestone payment from HCR pursuant to our Royalty Purchase Agreement. Proceed 
from the milestone payment was recorded as other income in the consolidated statement of operations for the year ended December 31, 2022, using the 
most likely method in accordance with ASC 610-20 Other Income — Gains and Losses from the Derecognition of Nonfinancial Assets. 

On  March  29,  2023,  we  entered  into  and  closed  a  payment  interest  purchase  agreement  (the  “Purchase  Agreement”)  with  XOMA  (US)  LLC 
(“XOMA”) pursuant to which we sold to XOMA our right, title and interest in and to all of the deferred payments and a portion of the milestone payments 
from Medexus pursuant to our LLC Purchase Agreement. Under the terms of the Purchase Agreement, we received $9.6 million at closing (the “Closing 
Payment”) and we are eligible to receive additional post-closing payment of $0.05 million if the deferred payment in respect of net sales under our LLC 
Purchase  Agreement  with  Medexus  for  the  first  calendar  quarter  of  2023  (“Q1  2023”)  exceeds  $0.5  million.  In  exchange  for  the  Closing  Payment,  the 
Company sold to XOMA its right, title and interest to the following payments under the LLC Purchase Agreement: (i) 100% of the Company’s entitlement 
to receive the deferred payments that may become due and payable following March 29, 2023 (including, for avoidance of doubt, any and all payments 
earned during Q1 2023), (ii) 25% of the Company’s entitlement to receive the Canadian Approval Milestone Payment; and (iii) 50% of the Company’s 
entitlement to receive the European Approval Milestone Payments and Net Sales Milestone Payment.

On March 29, 2023, we used a portion of the proceeds from our Purchase Agreement with XOMA to fully repay $2.8 million outstanding principal 

of our MidCap debt, including payment of $0.3 million in exit fees.

100

 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
 
 
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

As of December 31, 2022, management, with the participation of our Chief Executive Officer and Chief Financial Officer, performed an evaluation 
of the effectiveness of our disclosure controls and procedures as defined in Rules 13a- 15(e) and 15d-15(e) of the Exchange Act. Based on this evaluation, 
our Chief Executive Officer and Chief Financial Officer concluded that, as of December 31, 2022, the design and operation of our disclosure controls and 
procedures were effective to provide reasonable assurance that information we are required to disclose in reports that we file or submit under the Exchange 
Act is recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms and to provide reasonable assurance 
that  such  information  is  accumulated  and  communicated  to  our  management,  including  our  Chief  Executive  Officer  and  Chief  Financial  Officer,  as 
appropriate to allow timely decisions regarding required disclosure. 

Management’s Report on Internal Control over Financial Reporting

Management is responsible for establishing and maintaining adequate internal control over financial reporting, as defined in Rule 13a-15(f) of the 
1934 Act. Management has assessed the effectiveness of our internal control over financial reporting as of December 31, 2022 based on criteria established 
in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. As a result of this 
assessment,  management  concluded  that,  as  of  December  31,  2022,  our  internal  control  over  financial  reporting  was  effective  in  providing  reasonable 
assurance  regarding  the  reliability  of  financial  reporting  and  the  preparation  of  financial  statements  for  external  purposes  in  accordance  with  generally 
accepted accounting principles.

Changes in Internal Control over Financial Reporting

There have been no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) 
during the quarter ended December 31, 2022, that have materially affected, or are reasonably likely to materially affect, our internal control over financial 
reporting.

Limitations on Controls

Because  of  inherent  limitations,  disclosure  controls  and  internal  control  over  financial  reporting  may  not  prevent  or  detect  misstatements.  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.

Item 9B. Other Information.

None.

Item 9C. Disclosure Regarding Foreign Jurisdictions That Prevent Inspections.

Not Applicable.

101

 
Item 10. Directors, Executives Officers and Corporate Governance. 

PART III

Information required by this item will be contained in our definitive proxy statement to be filed with the SEC on Schedule 14A in connection with 
our 2023 Annual Meeting of Stockholders (the Proxy Statement), which is expected to be filed not later than 120 days after December 31, 2022, under the 
headings  “Executive  Officers,”  “Proposal  1  -  Election  of  Directors,”  “Information  Regarding  the  Board  of  Directors  and  Corporate  Governance,”  and 
“Delinquent Section 16(a) Reports,” and is incorporated herein by reference.

Item 11. Executive Compensation. 

Information  required  by  this  item  will  be  contained  in  the  Proxy  Statement  under  the  headings  “Executive  Compensation”  and  “Director 

Compensation,” and is incorporated herein by reference.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters. 

Information required by this item will be contained in the Proxy Statement under the headings “Security Ownership of Certain Beneficial Owners 

and Management” and is incorporated herein by reference.

Item 13. Certain Relationships, Related Transactions and Director Independence. 

Information  required  by  this  item  will  be  contained  in  the  Proxy  Statement  under  the  headings  “Transactions  with  Related  Persons”  and 

“Information Regarding the Board of Directors and Corporate Governance,” and is incorporated herein by reference.

Item 14. Principal Accountant Fees and Services. 

Information  required  by  this  item  will  be  contained  in  the  Proxy  Statement  under  the  heading  “Proposal  2  –  Ratification  of  the  Selection  of 

Independent Registered Public Accounting Firm,” and is incorporated herein by reference.

102

 
PART IV

Item 15. Exhibits, Financial Statement Schedules.

(a)

The following documents are filed as part of this report:

1.

Consolidated Financial Statements

See Index to Consolidated Financial Statements at Item 8 herein.

2.

Consolidated Financial Statement Schedules

All  schedules  are  omitted  because  they  are  not  applicable  or  the  required  information  is  shown  in  the  consolidated  financial  statements  or  notes 

thereto.

3.

Exhibit Index

103

 
 
Exhibit
Number

      2.1

Exhibit Index

Description

Form Exhibit

Filing Date

File No.

Filed
Herewith

   Contribution Agreement, dated July 29, 2016, by and among Emergent 
BioSolutions  Inc.,  Aptevo  Therapeutics  Inc.,  Aptevo  Research  and 
Development LLC and Aptevo BioTherapeutics LLC

8-K

2.1

August 2, 2016

001-37746

    +2.2

  Separation  and  Distribution  Agreement,  dated  July  29,  2016,  by  and 

8-K

2.2

August 2, 2016

001-37746

between Emergent BioSolutions Inc. and Aptevo Therapeutics Inc. 

  †+2.3

  LLC Purchase Agreement, dated as of August 31, 2017, by and among 
Aptevo  BioTherapeutics  LLC,    Aptevo  Therapeutics  Inc.,  Venus  Bio 
Therapeutics Sub LLC, and Saol International Limited. 

10-Q  

2.1

November 13, 2017

001-37746

    +2.4

  LLC Purchase Agreement by and among Aptevo Therapeutics Inc. and 

8-K  

2.1

March 2, 2020

001-37746

Medexus Pharma, Inc. dated February 28, 2020.

      3.1

   Amended  and  Restated  Certificate  of  Incorporation  of  Aptevo 

8-K

3.1

August 2, 2016

001-37746

Therapeutics Inc.  

      3.2

   Amended  and  Restated  By-laws  of  Aptevo  Therapeutics  Inc.,  as 

10-Q

3.1

November 10, 2022

001-37746

amended and restated on November 8, 2022.

      3.3

  Certificate  of  Amendment  of  Amended  and  Restated  Certificate  of 

8-K

3.1

March 27, 2020

001-37746

Incorporation of Aptevo Therapeutics Inc.

      3.4

  Certificate  of  Designation  of  Series  A  Junior  Participating  Preferred 

8-K

3.1

November 9, 2020

001-37746

Stock of Aptevo Therapeutics Inc.

      3.5

  Amended and Restated Bylaws of Aptevo Therapeutics Inc.

      4.1

   Form of Common Stock Certificate

      4.2

   Registration  Rights  Agreement,  dated  as  of  August  1,  2016,  by  and 

among Aptevo Therapeutics Inc. and certain of its stockholders 

      4.3

      4.4

      4.5

  Registration  Rights  Agreement,  dated  December  20,  2018,  by  and 
between  Aptevo  Therapeutics  Inc.  and  Lincoln  Park  Capital  Fund, 
LLC.

  Rights  Agreement,  dated  as  of  November  8,  2020,  by  and  between 
Aptevo  Therapeutics  Inc.  and  Broadridge  Corporate  Issuer  Solutions, 
Inc., as rights agent

  Amendment No. 1 to Right Agreement, dated as of November 5, 2021, 
between the Company and Broadridge Corporate Issuer Solutions, Inc., 
as Rights Agent

8-K

10

8-K

3.1

4.1

4

November 30, 2020

001-37746

June 29, 2016

001-37746

August 2, 2016

001-37746

8-K

10.2

December 24, 2018

001-37746

8-K

4.1

November 9, 2020

001-37746

8-K

4.1

November 5, 2021

001-37746

104

 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit
Number

   4.6

Description

Form Exhibit

Filing Date

File No.

Filed
Herewith

  Amendment  No.  2  to  Rights  Agreement,  dated  as  of  November  4, 
2022,  between  the  Company  and  Broadridge  Corporate  Issuer 
Solutions, Inc., as Rights Agent.

8-K

4.1

November 4, 2022

001-37746

      4.7

  Description of Capital Stock of Aptevo Therapeutics

4.5

March 31, 2021

001-37746

      4.8

  Agreement  to  Terminate  Registration  Rights  Agreement  between  the 

10-K

4.1

March 24, 2022

001-37746

Company and Intervac L.L.C. and BioVac L.L.C.

    10.1

  Transition  Services  Agreement,  dated  July  29,  2016,  by  and  between 

8-K

10.2

August 2, 2016

001-37746

Emergent BioSolutions Inc. and Aptevo Therapeutics Inc.

    10.2

   Tax  Matters  Agreement,  dated  July  29,  2016,  by  and  between 

8-K

10.3

August 2, 2016

001-37746

Emergent BioSolutions Inc. and Aptevo Therapeutics Inc.

    10.3

   Product  License  Agreement,  dated  July  29,  2016,  by  and  between 

8-K

10.8

August 2, 2016

001-37746

Emergent BioSolutions Inc. and Aptevo Therapeutics Inc.

C 10.4

  Aptevo Therapeutics Inc. Amended and Restated 2016 Stock Incentive 

10-Q

4.1

August 10, 2017

001-37746

Plan.

C 10.5

C 10.6

  Aptevo Therapeutics Inc. Converted Equity Awards Incentive Plan

8-K

10.10

August 2, 2016

001-37746

  Aptevo Therapeutics Inc. Amended and Restated Senior Management 

10-K C 10.6

March 24, 2022

001-37746

Severance Plan

C 10.7

   Form of Indemnity Agreement for directors and senior officers

   10.8

  Fourth  and  Battery  Office  Lease,  dated  as  of  April  28,  2003,  by  and 
between  Emergent  Product  Development  Seattle,  LLC  (as  successor-
in-interest  to  Trubion  Pharmaceuticals,  Inc.  and  Genecraft,  Inc.)  and 
Selig Real Estate Holdings Eight L.L.C. , or the Seattle Office Lease

   10.9

  Seattle Office Lease Amendment, dated December 8, 2004

   10.10

  Seattle Office Lease Amendment, dated February 1, 2006

   10.11

  Seattle Office Lease Amendment, dated February 2, 2007

   10.12

  Seattle Office Lease Amendment, dated June 7, 2010

   10.13

  Seattle Office Lease Amendment, dated December 21, 2010

10

10

10

10

10

10

10

10.9

April 15, 2016

001-37746

10.12

April 15, 2016

001-37746

10.13

April 15, 2016

001-37746

10.14

April 15, 2016

001-37746

10.15

April 15, 2016

001-37746

10.16

April 15, 2016

001-37746

10.17

April 15, 2016

001-37746

105

 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit
Number

Description

Form Exhibit

Filing Date

File No.

Filed
Herewith

   10.14

  Seattle Office Lease Amendment, dated July 17, 2012

   10.15

  Seventh Amendment to Seattle Office Lease, dated December 5, 2014

 †10.16

  License  and  Co-Development  Agreement,  dated  as  of  August  19, 
2014,  by  and  between  Emergent  Product  Development  Seattle,  LLC 
and MorphoSys AG, or the MorphoSys Collaboration Agreement

10

10

10

10.18

April 15, 2016

001-37746

10.19

April 15, 2016

001-37746

10.20

June 29, 2016

001-37746

 †10.17

  First Amendment to MorphoSys Collaboration Agreement, dated June 

10

10.21

April 15, 2016

001-37746

19, 2015

 †10.18

  Second  Amendment  to  MorphoSys  Collaboration  Agreement,  dated 

10

10.22

April 15, 2016

001-37746

December 7, 2015

   10.19

  Third  Amendment  to  MorphoSys  Collaboration  Agreement,  dated 

8-K

10.1

December 15, 2016

001-37746

December 12, 2016

   10.20

  Fourth Amendment MorphoSys Collaboration Agreement, dated June 

10

10.3

August 10, 2017

001-37746

19, 2017.

   10.21

  Equity  Distribution  Agreement,  dated  November  9,  2017,  between 

8-K

1.1

November 9, 2017

001-37746

Aptevo Therapeutics, Inc. and Piper Jaffray and Company LLC.

   10.22

   10.23

  Collaboration  and  Option  Agreement,  dated  as  of  July  20,  2017,  by 
and  between  Aptevo  Research  and  Development  LLC,  and  Alligator 
Bioscience AB.

  Amendment  No.  3  to  Credit  and  Security  Agreement,  dated  as  of 
February 23, 2018, by and among Aptevo Therapeutics Inc. and certain 
of its subsidiaries and Midcap Financial Trust. 

10-Q

10.2

November 13, 2017

001-37746

10-K 10.38

March 13, 2018

001-37746

   10.24

  Aptevo Therapeutics Inc. 2018 Stock Incentive Plan.

10-Q

10.1

August 9, 2018

001-37746

   10.25

  Aptevo Therapeutics Inc. Non-Statutory Stock Option Agreement.

10-Q

10.2

August 9, 2018

001-37746

   10.26

  Purchase  Agreement,  dated  December  20,  2018,  by  and  between 

8-K

10.1

December 24, 2018

001-37746

   10.27

   10.28

   10.29

Aptevo Therapeutics Inc. and Lincoln Park Capital Fund, LLC.

  Eighth  Amendment  to  Office  Lease,  dated  as  of  March  19,  2019,  by 
and between Aptevo Therapeutics Inc. and Selig Real Estate Holdings 
Eight L.L.C.

  Ninth  Amendment  to  Office  Lease,  dated  May  26,  2022,  by  and 
between  Aptevo  Therapeutics  Inc.  and  Selig  Real  Estate  Holdings 
Eight L.L.C.

  Amendment  to  LLC  Purchase  Agreement,  dated  as  of  August  31, 
2017,  by  and  among  Aptevo  BioTherapeutics  LLC,  Aptevo 
Therapeutics  Inc.,  Venus  Bio  Therapeutics  Sub  LLC,  and  Saol
International Limited.

106

8-K

10.1

March 22, 2019

001-37746

8-K

10.3

August 11, 2022

001-37746

10-Q

10.1

August 9, 2019

001-37746

 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit
Number

   10.30

   10.31

   10.32

   10.33

   10.34

Description

Form Exhibit

Filing Date

File No.

Filed
Herewith

  Collaboration and License Agreement, dated as of December 19, 2005, 
by  and  among  Wyeth  Pharmaceuticals  and  Trubion  Pharmaceuticals, 
Inc.

  Amendment No. 1 to the Collaboration and License Agreement dated 
as of December 19, 2005 (the “Agreement”) by and between Trubion 
Pharmaceuticals, Inc. (“Trubion”) and Wyeth, acting through its Wyeth 
Pharmaceuticals Division (“Wyeth”).

  Amendment No. 2 to the Collaboration and License Agreement dated 
as  of  December  19,  2005  (as  previously  amended,  the  “Agreement”) 
by and between Trubion Pharmaceuticals, Inc. (“Trubion”) and Wyeth 
LLC  (formerly  known  as  Wyeth),  acting 
its  Wyeth 
Pharmaceuticals Division (“Wyeth”).

through 

  Amendment No. 3 to the Collaboration and License Agreement dated 
as  of  December  19,  2005  (as  previously  amended,  the  “Agreement”) 
by  and  between  Emergent  Product  Development  Seattle,  LLC 
(successor  to  Trubion  Pharmaceuticals,  Inc.  (“Trubion”))  (“EPDS”) 
and Wyeth LLC (formerly known as Wyeth), acting through its Wyeth 
Pharmaceuticals Division (“Wyeth”).

  Amendment No. 4 to the Collaboration and License Agreement dated 
as  of  December  19,  2005  (as  previously  amended,  the  “Agreement”) 
by  and  between  Emergent  Product  Development  Seattle,  LLC 
(successor  to  Trubion  Pharmaceuticals,  Inc.  (“Trubion”))  and  Wyeth 
LLC  (formerly  known  as  Wyeth),  acting 
its  Wyeth 
Pharmaceuticals Division (“Wyeth”).

through 

10-Q

10.1

August 14, 2020

001-37746

10-Q

10.2

August 14, 2020

001-37746

10-Q

10.3

August 14, 2020

001-37746

8-K

10.4

August 14, 2020

001-37746

10-Q

10.5

August 14, 2020

001-37746

   10.35

  Credit  and  Security  Agreement,  dated  as  of  August  5,  2020,  by  and 

10-Q

10.1

November 10, 2019

001-37746

among Aptevo Therapeutics Inc., and MidCap Financial Trust.

   10.36

  Equity  Distribution  Agreement,  dated  December  14,  2020,  between 

8-K

1.1

December 14, 2020

001-37746

Aptevo Therapeutics Inc. and Piper Sandler & Co.

   10.37

  Royalty Purchase Agreement by and among Aptevo Therapeutics Inc. 
and Healthcare Royalty Partners IV, LP. dated as of March 30, 2021.

10-Q

10.1

May 11, 2021

001-37746

   10.38

  Amendment to Royalty Purchase Agreement dated June 7, 2022.

8-K

10.1

August 11, 2022

001-37746

   10.39

  First  Amendment  to  Credit  and  Security  Agreement  dated  March  30, 

10-Q

10.2

May 11, 2021

001-37746

2021.

107

 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit
Number

Description

Form Exhibit

Filing Date

File No.

Filed
Herewith

   10.40

  Limited  consent  and  Second  Amendment  to  Credit  and  Security 

8-K

10.2

August 11, 2022

001-37746

Agreement dated June 7, 2022.

   10.41

  Third Amendment to Credit and Security Agreement dated August 30, 

10-Q

10.2

November 10, 2022

001-37746

2022.

   10.42

  Executive Transition Services Agreement.

10-Q

10.3

November 12, 2021

001-37746

   10.43

  Amendment to Executive Transition Services Agreement.

10-Q

10.4

November 12, 2021

001-37746

   10.44

  Purchase  Agreement,  dated  February  16,  2022,  by  and  between  the 

8-K

10.1

February 17, 2022

001-37746

Company and Lincoln Park.

   10.45

  Registration  Rights  Agreement,  dated  February  16,  2022,  by  and 

8-K

10.2

February 17, 2022

001-37746

   21.1

   23.1

   31.1

   31.2

   32.1*

   32.2*

between the Company and Lincoln Park.

  Subsidiaries of Aptevo Therapeutics Inc.

  Consent of Independent Registered Public Accounting Firm.

   Certification  of  Principal  Executive  Officer  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.

   Certification of Principal Financial Officer 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.

   Certification of Principal Executive Officer Pursuant to 18 U.S.C. 
Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-
Oxley Act of 2002.

   Certification  of  Principal  Financial  Officer  Pursuant  to  18  U.S.C. 
Section  1350,  as  Adopted  Pursuant  to  Section  906  of  the  Sarbanes-
Oxley Act of 2002.

 101.INS

   Inline XBRL Instance Document

 101.SCH

  Inline XBRL Taxonomy Extension Schema Document

 101.CAL

  Inline XBRL Taxonomy Extension Calculation Linkbase Document

 101.DEF

  Inline XBRL Taxonomy Extension Definition Linkbase Document

 101.LAB

  Inline XBRL Taxonomy Extension Label Linkbase Document

 101.PRE

  Inline XBRL Taxonomy Extension Presentation Linkbase Document

108

X

X

X

X

X

X

X

X

X

X

X

X

 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit
Number

 104

Description

Form Exhibit

Filing Date

File No.

  Cover  Page  Interactive  Data  File  (formatted  as  Inline  XBRL  with 
applicable taxonomy extension information contained in Exhibits 101)

Filed
Herewith

X

* Document has been furnished, is not deemed filed and is not to be incorporated by reference into any of the Company's filings under the Securities Act of 
1933, as amended, or the Securities Exchange Act of 1934, as amended, irrespective of any general incorporation language contained in any such filing.
†   Confidential  treatment  granted  from  the  Securities  and  Exchange  Commission  as  to  certain  portions,  which  portions  have  been  omitted  and  filed 
separately with the Securities and Exchange Commission.
C Management contract or compensatory plan.
+  Schedules  have  been  omitted  pursuant  to  Item  601(b)(2)  of  Regulation  S-K.  Aptevo  will  furnish  copies  of  any  such  schedules  to  the  Securities  and 
Exchange Commission upon request. 

Item 16. Form 10-K Summary

We have chosen not to include the summary permitted by this Item 16.

109

 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
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 30, 2023

   Company Name

   By:

  /s/ Marvin L. White
  Marvin L. White
  President and Chief Executive Officer

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

Title

Date

/s/Marvin L. White
Marvin L. White

    President, Chief Executive Officer and Director
    (Principal Executive Officer)

/s/Daphne Taylor
Daphne Taylor

   Senior Vice President and Chief Financial Officer 
   (Principal Financial and Accounting Officer)

   March 30, 2023

   March 30, 2023

/s/John E. Niederhuber, M.D.
John E. Niederhuber, M.D.

   Chairman of the Board of Directors

   March 30, 2023

/s/Daniel J. Abdun-Nabi
Daniel J. Abdun-Nabi

/s/Grady Grant, III
Grady Grant, III

/s/Zsolt Harsanyi, Ph. D.
Zsolt Harsanyi, Ph. D.

/s/Barbara Lopez Kunz
Barbara Lopez Kunz

    Director

    Director

    Director

    Director

110

   March 30, 2023

   March 30, 2023

   March 30, 2023

   March 30, 2023

 
 
 
  
 
    
    
  
     
  
     
 
 
  
  
  
  
  
  
  
 
     
  
  
  
  
  
 
     
  
  
  
  
  
 
     
     
  
  
  
  
  
 
     
     
  
  
  
  
  
 
     
     
  
  
  
  
  
 
     
     
  
  
  
  
  
 
     
     
 
LIST OF SUBSIDIARIES

EXHIBIT 21.1

Name of Subsidiary

Aptevo Research and Development LLC

  Jurisdiction of Incorporation or Organization

  Delaware

  
 
   
  
 
 
  
 
 
 
   
 
 
 
   
 
Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements of Aptevo Therapeutics Inc. of our report dated March 30, 2023, 
relating to the 2022 consolidated financial statements of Aptevo Therapeutics Inc., appearing in this Annual Report on Form 10-K for the year ended 
December 31, 2022.

•

•

•
•
•

Registration Statement on Form S-8 (No. 333-265468) pertaining to the 2018 Stock Incentive Plan (as Amended and Restated) of Aptevo 
Therapeutics Inc.,
Registration Statement on Form S-8 (No. 333-213108) pertaining to the Converted Equity Awards Incentive Plan and 2016 Stock Incentive Plan 
of Aptevo Therapeutics Inc.,
Registration Statement on Form S-8 (No. 333-219875) pertaining to the 2016 Stock Incentive Plan of Aptevo Therapeutics Inc.,
Registration Statement on Form S-8 (No. 333-226717) pertaining to the 2018 Stock Incentive Plan of Aptevo Therapeutics Inc., and
Registration Statement on Form S-3 (No. 333-251318) of Aptevo Therapeutics Inc.

/s/ Moss Adams LLP

Seattle, Washington
March 30, 2023

 
 
 
 
 
 
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, Marvin White, certify that:

1.

2.

3.

4.

I have reviewed this Annual Report on Form 10-K of Aptevo Therapeutics 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 30, 2023

By:

/s/ Marvin L. White
Marvin L. White
President and Chief 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, Daphne Taylor, certify that:

1.

2.

3.

4.

I have reviewed this Annual Report on Form 10-K of Aptevo Therapeutics 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 30, 2023

   By:

/s/ Daphne Taylor
Daphne Taylor
Senior Vice President and Chief Financial Officer

 
  
     
  
     
 
CERTIFICATION PURSUANT TO
RULE 13a-14(b) OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED AND
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 Aptevo Therapeutics Inc. (the “Company”) on Form 10-K for the period ending December 31, 2022 as 

filed with the Securities and Exchange Commission on the date hereof (the “Report”), I 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 Section 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 results of operations of the 
Company.

Date: March 30, 2023

   By:

/s/ Marvin L. White
Marvin L. White
President and Chief Executive Officer 

“This certification accompanies the Form 10-K 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 Aptevo Therapeutics 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 Form 10-K), irrespective of any general incorporation language contained in such filing.”

 
 
  
     
  
     
 
 
CERTIFICATION PURSUANT TO
RULE 13a-14(b) OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED AND
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 Aptevo Therapeutics Inc. (the “Company”) on Form 10-K for the period ending December 31, 2022 as 

filed with the Securities and Exchange Commission on the date hereof (the “Report”), I 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 Section 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 results of operations of the 
Company.

Date: March 30, 2023

   By:

/s/ Daphne Taylor
Daphne Taylor
Senior Vice President and Chief Financial Officer 

“This certification accompanies the Form 10-K 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 Aptevo Therapeutics 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 Form 10-K), irrespective of any general incorporation language contained in such filing.”