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Xenetic Biosciences, Inc.

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FY2019 Annual Report · Xenetic Biosciences, Inc.
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

Form 10-K

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.
For the fiscal year ended December 31, 2019

TRANSITION REPORTS PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.
For the transition period from to

Commission File Number: 001-37937

XENETIC BIOSCIENCES, INC.
(Exact name of registrant as specified in its charter)

Nevada
(State or other jurisdiction of
incorporation or organization)

45-2952962
(IRS Employer
Identification No.)

40 Speen Street, Suite 102
Framingham, MA 01701
(Address of principal executive offices and zip code)

781-778-7720
(Registrant’s telephone number, including area code)

Title of each class

 Common Stock, $0.001 par value per share
 Purchase Warrants

Trading Symbol(s)
XBIO
XBIOW

Name of each exchange on which registered
The NASDAQ Capital Market
The NASDAQ Capital Market

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

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act: Yes ☐ No ☒

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 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  an  emerging  growth
company. See the definitions of “large accelerated filer,” “accelerated filer” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
(Check one):

Large accelerated filer
Non-accelerated filer

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☒

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 is a shell company (as defined in Exchange Act Rule 12b-2): Yes  ¨    No  x

The aggregate market value of the voting and non-voting common stock held by non-affiliates of the registrant as of June 28, 2019, the last business day of the registrant’s most
recently  completely  second  fiscal  quarter,  based  upon  the  closing  price  of  the  registrant’s  common  stock  on  the  NASDAQ  Capital  Market  on  that  date  of  $11.25,  was
approximately $5,342,529. For purposes of this computation, all officers, directors, and 10% beneficial owners of the registrant are deemed to be affiliates. Such determination
should not be deemed to be an admission that such officers, directors or 10% beneficial owners are, in fact, affiliates of the registrant.

As of March 6, 2020, the number of outstanding shares of the registrant’s Common Stock was 6,284,915.

DOCUMENTS INCORPORATED BY REFERENCE

Information  required  in  response  to  Part  III  of  Form  10-K  (Items  10,  11,  12,  13  and  14)  is  hereby  incorporated  by  reference  to  portions  of  the  registrant's  definitive  proxy
statement, information statement or an amendment to this Annual Report on Form 10-K for its 2020 Annual Meeting of Stockholders. The registrant intends to file a definitive
proxy statement, information statement or an amendment to this Annual Report on Form 10-K with the Securities and Exchange Commission no later than 120 days after the
end of the registrant's fiscal year ended December 31, 2019.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
XENETIC BIOSCIENCES, INC.
2019 ANNUAL REPORT ON FORM 10-K

 TABLE CONTENTS

PART I

Item 1

  Business

Item 1A

  Risk Factors

Item 1B

  Unresolved Staff Comments

Item 2

  Properties

Item 3

  Legal Proceedings

Item 4

  Mine Safety Disclosures

PART II

Item 5

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

Item 6

  Selected Financial Data

Item 7

  Management’s Discussion and Analysis of Financial Condition and Results of Operations

Item 7A

  Quantitative and Qualitative Disclosures About Market Risk

Item 8

  Financial Statements and Supplementary Data

Item 9

  Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

Item 9A

  Controls and Procedures

Item 9B

  Other Information

PART III

Item 10

  Directors, Executive Officers and Corporate Governance

Item 11

  Executive Compensation

Item 12

  Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Item 13

  Certain Relationships and Related Transactions, and Director Independence

Item 14

  Principal Accounting Fees and Services

PART IV

Item 15

  Exhibits and Financial Statement Schedules

Item 16

  Form 10-K Summary

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K (“Annual Report”) contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934,
as  amended  (the  “Exchange Act”),  and  Section  27A  of  the  Securities Act  of  1933,  as  amended. All  statements  contained  in  this Annual  Report  other  than  statements  of
historical fact, including statements regarding our future results of operations and financial position, our business strategy and plans, future revenues, projected costs, prospects
and our objectives for future operations, are forward-looking statements. These forward-looking statements include, but are not limited to, statements concerning our plans to
develop our proposed drug candidates; our expectations regarding the nature, timing and extent of clinical trials and proposed clinical trials including the timing of generating
clinical data from these trials; our expectations regarding the timing for proposed submissions of regulatory filings, including but not limited to any Investigational New Drug
(“IND”) filing or any New Drug Application (“NDA”); the nature, timing and extent of collaboration arrangements; the expected results pursuant to collaboration arrangements
including the receipts of future payments that may arise pursuant to collaboration arrangements; the outcome of our plans to obtain regulatory approval of our drug candidates;
the outcome of our plans for the commercialization of our drug candidates; our plans to address certain markets, engage third party manufacturers, and evaluate additional drug
candidates for subsequent commercial development, and the likelihood and extent of competition to our drug candidates; the development of the XCART ™ CAR T (“Chimeric
Antigen Receptor T Cell”) technology; our plans to apply the XCART technology to advance cell-based therapeutics by targeting the unique B cell receptor on the surface of an
individual patient’s malignant tumor cells for the treatment of B-cell lymphomas; our beliefs regarding the expected results of the XCART technology, including its potential to
significantly enhance the safety and efficacy of cell therapy for B-cell lymphomas by generating patient and tumor specific CAR T cells; and our anticipating that our primary
focus will now be on advancing the XCART technology regulatory approval and commercialization technology.

In  some  cases,  these  statements  may  be  identified  by  terminology  such  as  “may,”  “will,”  “should,”  “expect,”  “plan,”  “anticipate,”  “believe,”  “estimate,”  “predict,”
“potential,”  or  “continue,”  or  the  negative  of  such  terms  and  other  comparable  terminology.  Although  we  believe  that  the  expectations  reflected  in  the  forward-looking
statements  contained  herein  are  reasonable,  we  cannot  guarantee  future  results,  the  levels  of  activity,  performance  or  achievements.  These  statements  involve  known  and
unknown risks and uncertainties that may cause our or our industry's results, levels of activity, performance or achievements to be materially different from those expressed or
implied by forward-looking statements.

Some factors that could cause actual results to differ materially include without limitation:

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our need to raise additional working capital in the future for the purpose of further developing our XCART technology and to continue as a going concern;
our ability to finance our business;
our ability to successfully execute, manage and integrate key acquisitions and mergers, including integration of the acquisition of the XCART technology;
product development and commercialization risks, including our ability to successfully develop the XCART technology;
the impact of adverse safety outcomes and clinical trial results for CAR-T cell therapies;
our ability to secure and maintain a manufacturer for the XCART technology;
our ability to successfully commercialize our current and future drug candidates;
our ability to achieve milestone and other payments associated with our current and future co-development collaborations and strategic arrangements;
the impact of new technologies on our drug candidates and our competition;
changes in laws or regulations of governmental agencies;
interruptions or cancellation of existing contracts;
impact of competitive products and pricing;
product demand and market acceptance and risks;
the presence of competitors with greater financial resources;
continued availability of supplies or materials used in manufacturing at the current prices;
the ability of management to execute plans and motivate personnel in the execution of those plans;
our ability to attract and retain key personnel;
adverse publicity related to our products or the Company itself;
adverse claims relating to our intellectual property;
the adoption of new, or changes in, accounting principles;
the costs inherent with complying with statutes and regulations applicable to public reporting companies, such as the Sarbanes-Oxley Act of 2002;
other new lines of business that the Company may enter in the future;
general economic and business conditions, as well as inflationary trends; and
other factors set forth in the Risk Factors section of our Annual Report on Form 10-K and in subsequent filings with the Securities and Exchange Commission
(“SEC”).

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These factors are not necessarily all of the important factors that could cause actual results to differ materially from those expressed in the forward-looking statements
in this Annual Report. Other unknown or unpredictable factors also could have material adverse effects on our future results, including, but not limited to, those discussed in the
section titled “Risk Factors.” The forward-looking statements in this Annual Report are made only as of the date of this Annual Report, and we do not undertake any obligation
to publicly update any forward-looking statements to reflect subsequent events or circumstances. We intend that all forward-looking statements be subject to the safe-harbor
provisions of the Private Securities Litigation Reform Act of 1995. 

As used in this Annual Report, unless otherwise indicated, all references herein to “Xenetic,” the “Company,” “we” or “us” refer to Xenetic Biosciences, Inc. and its

wholly-owned subsidiaries.

Our  brand  and  product  names,  including  but  not  limited  to  XCART™,  OncoHist™,  PolyXen®,  ErepoXen™  and  ImuXen™  contained  in  this  Annual  Report  are
trademarks, registered trademarks or service marks of Xenetic Biosciences, Inc. and/or its subsidiaries in the United States of America (“USA” or “U.S.”) and certain other
countries. All other company and product names may be trademarks of the respective companies with which they are associated.

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 ITEM 1 – BUSINESS

Overview

 PART I

We are a biopharmaceutical company focused on advancing XCART, a personalized CAR T cell platform technology engineered to target patient-specific tumor neoantigens.
The Company is initially advancing cell-based therapeutics targeting the unique B-cell receptor on the surface of an individual patient’s malignant tumor cells, for the treatment
of  B-cell  lymphomas.  The  XCART  technology,  developed  by  the  Scripps  Research  Institute  (the  “Institute”)  in  collaboration  with  the  Shemyakin-Ovchinnikov  Institute  of
Bioorganic Chemistry (“IBCH”), is believed to have the potential to significantly enhance the safety and efficacy of cell therapy for B-cell lymphomas by generating patient-
and tumor-specific CAR T cells. On March 1, 2019, we entered into agreements to acquire the XCART technology (the “Transaction”) and closed the Transaction on July 19,
2019 (the “Closing Date”) concurrent with the completion of an approximate $15 million public offering (the “Offering”).

More than 70,000 new cases of non-Hodgkin Lymphoma (“NHL”) are diagnosed each year in the United States, and more than 19,000 patients die of this group of diseases
annually.  Most  forms  of  NHL,  including  follicular  lymphoma,  mantle  cell  lymphoma,  marginal  zone  lymphoma,  lymphoplasmacytic  lymphoma,  and  small  lymphocytic
lymphoma, which account collectively for ~45% of all cases of NHL, are incurable with available therapies, except for allo-SCT. However, many NHL patients are not suitable
candidates for allo-SCT, and this treatment is also limited by significant rates of morbidity and mortality due to graft versus host disease. Aggressive B-cell lymphomas such as
diffuse large B-cell lymphoma account for 30-35% of NHL. The majority of patients with aggressive B-NHL are successfully treated with combination chemotherapy, but a
significant portion relapse or have refractory disease, and the outcome of these patients is poor.

CAR-T cell therapies are an innovative approach in which a patient’s T cells are genetically modified to carry chimeric antigen receptors (“CARs”). High objective response
rates have been reported in some hematological malignancies, but patients treated with CAR-T cell therapies can have serious and sometimes fatal toxicities, which include
instances in which the CAR-T cells have caused high levels of cytokines due to over-activation, referred to as “cytokine release syndrome,” or CRS, neurologic toxicities and
cases in which CAR-T cells have attacked healthy organs. In each case, these toxicities have sometimes resulted in death. HSCT, also known as bone marrow transplantation,
has for decades been curative for many patients with hematological cancers or orphan inherited blood disorders. However, adoption of HSCT to date has been limited by the
risks of transplant-related morbidity and mortality from graft-versus-host-disease, or GvHD, and the potential for serious infections or cancer recurrence due to the lack of an
effective immune system following a transplant.

The XCART technology platform was designed by its originators to utilize an established screening technique to identify peptide ligands that bind specifically to the unique B-
cell  receptor  (“BCR”)  on  the  surface  of  an  individual  patient’s  malignant  tumor  cells.  The  peptide  is  then  inserted  into  the  antigen-binding  domain  of  a  CAR  T  cell,  and  a
subsequent transduction/transfection process is used to engineer the patient’s T cells into a CAR T format which redirects the patient’s T cells to attack the tumor. Essentially,
the XCART screening platform is the inverse of a typical CAR T screening protocol wherein libraries of highly specific antibody domains are screened against a given target. In
the case of XCART screening, the target is itself an antibody domain, and hence highly specific by its nature. The XCART technology creates the possibility of personalized
treatment of lymphomas utilizing a CAR with an antigen-binding domain that should only recognize, and only be recognized by, the unique BCR of a particular patient’s B-cell
lymphoma. An expected result for XCART is limited off-tumor toxicities, such as B-cell aplasia. Our clinical development program will seek to confirm the early preclinical
results,  and  to  demonstrate  a  more  attractive  safety  profile  than  existing  therapies.  We  anticipate  that  our  primary  focus  will  now  be  on  advancing  this  technology  through
regulatory approval and commercialization.

Additionally, our proprietary drug development platform, PolyXen, enables next-generation biological drugs by modifying their half-life and other pharmacological properties.
PolyXen has been demonstrated in human clinical trials to confer prolonged half-life on biotherapeutics such as recombinant human erythropoietin and recombinant Factor VIII
(“rFVIII”).  We  believe  this  technology  may  be  applied  to  a  variety  of  drug  candidates  to  enhance  the  properties  of  the  therapeutic,  potentially  providing  advantages  over
competing products.

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Our drug candidates have resulted from our research activities or that of our collaborators and are in the development stage. As a result, we continue to commit a significant
amount of our resources to our research and development activities and anticipate continuing to do so for the near future. To date, none of our drug candidates have received
regulatory marketing authorization in the U.S. by the FDA nor in any other territories by any applicable agencies. We are receiving ongoing royalties pursuant to a license of our
PolyXen technology to an industry partner.

We  also  have  oncology  therapeutic  investigational  drug  candidate  XBIO-101  (sodium  cridanimod)  for  the  treatment  of  progestin  resistant  endometrial  cancer.  We  have
exclusive rights to develop and commercialize XBIO-101 worldwide, except for specified countries in the Commonwealth of Independent States. XBIO-101 has been granted
orphan drug designation by the U.S. Food and Drug Administration (“FDA”) for the potential treatment of progesterone receptor negative endometrial cancer in conjunction
with progesterone therapy. We commenced a Phase 2 trial under an IND in 2017, with the first patient dosed in October 2017. We closed patient enrollment in the trial in March
2019 as a result of slower than expected progress on the trial resulting from patient enrollment and retention challenges and have suspended further development of XBIO-101.
We currently have no plans to continue development of XBIO-101.

Although we hold a broad patent portfolio, the focus of our internal development efforts in 2019 was limited to winding down the XBIO-101 Phase 2 trial and preliminary
development efforts associated with the XCART technology.

We  were  incorporated  under  the  laws  of  the  State  of  Nevada  in August  2011.  We,  directly  or  indirectly,  through  our  wholly-owned  subsidiary,  Xenetic  Biosciences  (U.K.)
Limited (“Xenetic U.K.”), and its wholly-owned subsidiaries, Lipoxen Technologies Limited (“Lipoxen”), Xenetic Bioscience, Incorporated (“XTI”) and SymbioTec, GmbH
(“SymbioTec”),  own  various  U.S.  federal  trademark  registrations  and  applications,  and  unregistered  trademarks  and  service  marks,  including  but  not  limited  to  XCART,
OncoHist, PolyXen, ErepoXen and ImuXen.

Our Strategy

In July 2019 we acquired the XCART platform, a novel CAR T technology engineered to target patient- and tumor-specific neoantigens (see “Business Developments” for a
description  of  the  Transaction  and  “Our  Technology  and  Drug  Candidates”  for  a  description  of  the  technology).  We  believe  these  personalized  T  cell  therapies  have  the
potential  to  offer  cancer  patients  substantial  benefits  over  the  existing  standard  of  care  and  currently  approved  CAR  T  therapies.  We  plan  to  initially  apply  the  XCART
technology  to  develop  cell-based  therapeutics  for  the  treatment  of  B-cell  Lymphomas  with  our  primary  focus  to  advance  this  technology  through  regulatory  approval  and
commercialization. We also intend to pursue industry collaborations and potential licenses to develop XCART for other uses and indications.

We  plan  to  opportunistically  advance  our  PolyXen  platform  technology  by  entering  into  collaborative  out-license  arrangements  with  global  pharmaceutical  companies  who
could apply the necessary resources for advancing drug candidates through to worldwide commercialization, or by entering into arrangements with other partners that would in-
license  our  technology  on  a  restrictive-market  basis.  The  latter  arrangement  would  provide  support  to  us  in  the  form  of  access  to  partner-generated  clinical  data,  which  is
informative when contemplating potential monetization of our proprietary technology in larger markets. One aim of these efforts would be to drive incremental shareholder
value and generate working capital to assist in providing the funding required to support our XCART development efforts.

We intend to pursue orphan drug designations and accelerated approval pathways for relevant oncology indications as appropriate in both the U.S. and Europe. If our orphan
oncology drug candidates are granted orphan drug designation, then we may benefit from certain key advantages of orphan status including certain market exclusivities.

We  intend  to  advance  development  of  our  drug  candidates  primarily  through  the  use  of  contract  manufacturing  and  contract  research  organizations  (“CROs”)  in  order  to
efficiently manage our resources. Continuous pipeline growth and advancement of out-licensed drug candidates is dependent, in part, on our ability to raise sufficient capital
and to advance our existing co-development collaborations and strategic arrangements as well as enter into new such arrangements.

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Business Developments

XCART Technology

On March 1, 2019 (the “Signing Date”) we entered into agreements with Hesperix SA, a Swiss Corporation (“Hesperix”) and Opko Pharmaceuticals, LLC (“OPKO”) to acquire
the XCART technology. We entered into a Share Purchase Agreement, as amended (the “Share Purchase Agreement”), with Hesperix, the owners of Hesperix (each, a “Seller”
and collectively, the “Sellers”), and Alexey Andreevich Vinogradov, as the representative of each Seller, pursuant to which we purchased from Sellers all of the issued and
outstanding shares of capital stock of Hesperix.

Under the terms of the Share Purchase Agreement, we issued to Sellers an aggregate of Four Hundred Six Thousand Two Hundred Forty-Six (406,246) shares of our Common
Stock (the “Transaction Shares”) at the time of the closing. In addition, the Share Purchase Agreement contains customary representations and warranties relating to each Seller
and about the condition of the Company and Hesperix. We issued the Transaction Shares pursuant to a registration statement on Form S-4.

On  the  Signing  Date  and  in  connection  with  the  Transaction,  Hesperix  entered  into  an  assignment  agreement  (the  “Hesperix  Assignment  Agreement”)  with  IBCH,
Pharmsynthez, a Russian pharmaceutical company, and certain other parties thereto (collectively, the “Assignors”), pursuant to which the Assignors have agreed, among other
things, to sell, assign, transfer, and convey unto Hesperix all of their individual right, title, and interest throughout the world in and to patents related to “Articles And Methods
Directed To Personalized Therapy Of Cancer,” and the related know-how. Hesperix has agreed to pay each of IBCH and Pharmsynthez a royalty rate in the low single digit
range  based  on  the  net  sales  of  products  in  each  country  in  which,  in  the  absence  of  the  Hesperix Assignment Agreement,  the  manufacture,  use,  offer  for  sale,  sale,  or
importation of such product would infringe a valid claim of a patent.

Also on the Signing Date, we entered into an assignment agreement with OPKO (the “OPKO Assignment Agreement”), pursuant to which the Company will acquire and accept,
all of OPKO’s right, title and interest in and to that certain Intellectual Property License Agreement (the “IP License Agreement”), entered into between the Institute and OPKO
regarding certain patents related to “Articles And Methods Directed To Personalized Therapy Of Cancer” and in which the Institute agreed to grant an exclusive royalty-bearing
license, to the patent rights owned by the Institute to OPKO, and OPKO has agreed to pay the Institute a royalty rate in the low single digit range based on the net sales of
products in each country in which, in the absence of the IP License Agreement, the manufacture, use, offer for sale, sale, or importation of such product would infringe a valid
claim of a patent or pending application.

Under  the  terms  of  the  OPKO Assignment Agreement  and  the  IP  License Agreement,  we  issued  One  Hundred  Sixty  Four  Thousand  Sixty  Two  (164,062)  shares  of  our
Common Stock to OPKO and Fifty-Four Thousand Six Hundred Eighty Seven (54,687) shares of our Common Stock to the Institute at the time of the closing. In addition, the
OPKO Assignment Agreement contains customary representations and warranties relating to OPKO and the IP License Agreement. The Transaction closed on July 19, 2019.

The Offering

On  July  17,  2019,  we  entered  into  an  underwriting  agreement  (the  "Underwriting Agreement")  with  Maxim  Group  LLC  (the  “Underwriter”),  relating  to  our  Offering  of
1,730,000 shares (the “Shares”) of the Company’s common stock, par value $0.001 (the “Common Stock”), Prefunded Warrants to purchase 570,000 shares of Common Stock
(the  “Prefunded  Warrants”),  and  warrants  to  purchase  2,300,000  shares  of  the  Common  Stock  (the  “Purchase  Warrants,”  and  together  with  the  Shares  and  the  Prefunded
Warrants, the "Firm Securities"). Each Share was sold together with one Purchase Warrant at a combined public offering price of $6.50 per Share and Purchase Warrant. Each
Pre-funded Warrant purchased was sold together with one Purchase Warrant at a combined public offering price of $6.49 per Prefunded Warrant and Purchase Warrant. The
Prefunded  Warrants  were  exercisable  beginning  on  July  17,  2019  at  an  exercise  price  of  $0.01  per  share.  The  holders  of  the  Prefunded  Warrants  did  not  have  the  right  to
exercise any portion of the Prefunded Warrant if the holder (together with its affiliates) would beneficially own in excess of 4.99% of the number of shares of our Common
Stock outstanding immediately after giving effect to the exercise, as such percentage ownership is determined in accordance with the terms of the Prefunded Warrants. Pursuant
to the Underwriting Agreement, we also granted the Underwriter a 45-day option to purchase up to an additional 345,000 shares of Common Stock and/or Purchase Warrants to
purchase up to 345,000 shares of Common Stock (the "Additional Securities," and together with the Firm Securities, the "Securities"), at the public offering price less discounts
and commissions.

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The Securities were offered, issued, and sold pursuant to an effective Registration Statement on Form S-1 (Reg. No. 333-231508) and accompanying prospectus filed with the
SEC under the Securities Act of 1933, as amended.

On the Closing Date, we completed the Offering resulting in gross proceeds to us of approximately $15.0 million before deducting the underwriting discount and offering fees
and  expenses  payable  by  us.  In  addition,  on  the  Closing  Date,  the  Underwriter  exercised  its  overallotment  option  with  respect  to  160,000  Purchase  Warrants,  resulting  in
additional  gross  proceeds  of  $1,600.  We  intend  to  use  the  net  proceeds  from  the  Offering  of  approximately  $13.4  million  to  fund  our  research,  development  and  clinical
programs, including the development of the XCART technology acquired in the Transaction, and for other general corporate purposes. All of the Prefunded Warrants were
exercised during the year ended December 31, 2019, resulting in $5,700 of net proceeds to us.

The Purchase Warrants were immediately exercisable at a price of $13.00 per share of Common Stock and expire five years from the date of issuance. The Purchase Warrants
began trading on NASDAQ on July 23, 2019 under the symbol “XBIOW.” The Purchase Warrants also provide that if the weighted-average price of Common Stock on any
trading day on or after 30 days after issuance is lower than the then-applicable exercise price per share, each Purchase Warrant may be exercised, at the option of the holder, on
a cashless basis for one share of Common Stock. The weighted-average price of our Common Stock 30 days after issuance was lower than the applicable exercise price per
share. As a result, Purchase Warrants to purchase 2.2 million shares were exercised on a cashless basis into 2.2 million shares of our Common Stock during the year ended
December 31, 2019.

Reverse Stock Split

On June 25, 2019, we effected a reduction, on a 1 for 12 basis, in our authorized Common Stock, par value $0.001, along with a corresponding and proportional decrease in the
number of shares issued and outstanding (the “Reverse Stock Split”). On the effective date of the Reverse Stock Split, (i) every 12 shares of Common Stock were reduced to
one share of Common Stock, with any fractional amounts rounded up to one share; (ii) the number of shares of Common Stock into which each outstanding warrant, restricted
stock unit, or option to purchase Common Stock were proportionately reduced on the same basis as the Common Stock; (iii) the exercise price of each outstanding warrant or
option to purchase Common Stock were proportionately increased on a 1 for 12 basis; and (iv) the number of shares of Common Stock into which each share of preferred stock
could be converted were proportionately reduced on the same basis as the Common Stock. Unless otherwise indicated, all of the share numbers, share prices, and exercise prices
have been adjusted, on a retroactive basis, to reflect this Reverse Stock Split.

On June 21, 2019, we filed a Certificate of Change to the Company’s Articles of Incorporation with the Secretary of State of Nevada to effect the Reverse Stock Split. The
Reverse Stock Split was effective at 12:01 a.m., eastern Time, on June 25, 2019. No fractional shares were issued as a result of the Reverse Stock Split and any remaining share
fractions were rounded up to the nearest whole share, resulting in 1,442 new shares of Common Stock being issued to existing holders of our Common Stock.

Increase in Authorized Shares

On  June  19,  2019,  shareholders  of  the  Company  voted  to  approve  an  amendment  to  our Articles  of  Incorporation  to  increase  the  authorized  shares  of  Common  Stock  to
150,000,000 shares on a pre-Reverse Stock Split basis (the “Authorized Share Increase”). On June 24, 2019, we filed a Certificate of Amendment to the Company’s Articles of
Incorporation with the Secretary of the State of Nevada to effect the Authorized Share Increase as of June 25, 2019. As a result of the Authorized Share Increase and after
giving effect to the Reverse Stock Split, we had 12,500,000 authorized shares of Common Stock.

7

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Closing of Patient Enrollment in XBIO-101 Phase II EC Trial

We commenced a Phase II trial under an IND for XBIO-101 in 2017, with the first patient dosed in October 2017. We closed patient enrollment in the trial in March 2019 as a
result of slower than expected progress on the trial resulting from patient enrollment and retention challenges and have suspended further development of XBIO-101.

Our Technology and Drug Candidates

The Technologies

We incorporate our patented and proprietary technologies into a number of drug candidates which are currently under development internally or with our biotechnology and
pharmaceutical collaborators, with the goal of creating what we believe will be the next generation of biologic drugs and therapeutics. While we primarily focus on researching
and  developing  oncology  drugs,  we  also  have  ownership  and  other  economic  interests  in  drugs  being  developed  by  our  collaborators  to  treat  other  conditions.  Our  patent
portfolio spans five core proprietary technologies including three platforms, small molecules and biologics covering multiple drug candidates and indications including XCART,
XBIO-101, PolyXen, OncoHist and ImuXen. During the year ended December 31, 2019, our primary focus was on the management of the XBIO-101 Phase II clinical study
and the preliminary development efforts associated with the XCART technology. We have not been actively pursuing development efforts for PolyXen, OncoHist and ImuXen
due  to  capital  constraints. As  a  result,  we  anticipate  that  the  focus  of  our  future  internal  development  efforts  will  be  limited  to  research  and  development  of  our  XCART
technology.

XCART

PolyXen

OncoHist

ImuXen

The  XCART  technology  platform  was  designed  by  its  originators  to  utilize  an  established  screening  technique  to  identify  peptide  ligands  that  bind
specifically to the unique BCR on the surface of an individual patient’s malignant tumor cells. The peptide is then inserted into the antigen-binding
domain  of  a  CAR  T  cell,  and  a  subsequent  transduction/transfection  process  is  used  to  engineer  the  patient’s  T  cells  into  a  CAR  T  format  which
redirects  the  patient’s  T  cells  to  attack  the  tumor.  Essentially,  the  XCART  screening  platform  is  the  inverse  of  a  typical  CAR  T  screening  protocol
wherein  libraries  of  highly  specific  antibody  domains  are  screened  against  a  given  target.  In  the  case  of  XCART  screening,  the  target  is  itself  an
antibody  domain,  and  hence  highly  specific  by  its  nature.  The  XCART  technology  creates  the  possibility  of  personalized  treatment  of  lymphomas
utilizing a CAR with an antigen-binding domain that should only recognize, and only be recognized by, the unique BCR of a particular patient’s B-cell
lymphoma. An  expected  result  for  XCART  is  limited  off-tumor  toxicities,  such  as  B-cell  aplasia.  Our  clinical  development  program  will  seek  to
confirm the early preclinical results, and to demonstrate a more attractive safety profile than existing therapies to support our preliminary discussions
with the FDA in advance of an IND filing.

An  enabling  biological  platform  technology  designed  to  extend the circulation time of drug molecules in the human body by chemically attaching
polysialic acid, or PSA, to the drug molecule by a process termed polysialylation, thereby creating potentially superior next generation therapeutic
candidates. PSA, a biopolymer, comprising a chain of sialic acid molecules, is a natural constituent of the human body, although we obtain our PSA
from a bacterial source.

A  novel  therapeutic  platform  technology  that  utilizes  the  properties  of  modified  human  histone  H1.3  for  targeted  cell  apoptosis  (programmed  cell
death), which may enable OncoHist to treat a broad range of cancer indications. OncoHist, unlike many competing oncology therapies, is based on a
molecule  occurring  naturally  in  the  human  body,  primarily  in  the  cell  nucleus,  and  is  therefore  hypothesized  to  be  better  tolerated  and  less
immunogenic than other oncology therapies. 

A novel liposomal co-entrapment encapsulation technology designed to maximize both cell and immune system mediated responses. The technology is
based on the co-entrapment of the nominated antigen(s) in a liposomal vesicle. The technology when applied may create new vaccines and improve the
use and efficacy of certain existing human vaccines.

Though we hold a broad patent portfolio, the focus of our internal development efforts in 2019 was limited to research and development of XBIO-101 and XCART due to
capital constraints.

8

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Research, Outside Services and Collaborations

Through  partner  efforts,  we  are  developing  our  pipeline  of  next-generation  bio-therapeutics  and  novel  oncology  drugs  based  on  our  XCART  and  PolyXen  proprietary
technologies. In order to do this while efficiently managing our overhead, we rely on the services of contract manufacturers and CROs and our strategic collaborations. We
currently do not have in-house research facilities to pursue these initiatives. Accordingly, continuous pipeline growth and advancement of our technologies and drug candidates
is dependent on several important collaborations and strategic arrangements including our arrangements with:

·

·

·

Pharmsynthez, a beneficial owner of over 5% of our Common Stock;

Serum Institute of India Limited (“Serum Institute”), one of the world’s largest vaccine manufacturers and one of India’s largest biotech companies; and

Takeda Pharmaceuticals Co. Ltd (formerly Shire plc) (“Takeda”), a global biopharmaceutical leader.

Accordingly, in addition to pursuing our development of the XCART technology, we also have significant interests in drug candidates being developed by our collaborators to
treat other conditions. We may collect milestone payments and royalties pursuant to these collaborations to the extent that these drugs are successfully developed and marketed.
However, other than royalty payments under a sublicense with Takeda, we do not anticipate any milestone or royalty payments in the near term, if at all. For further detail,
please read the section titled “Significant Co-Development Collaborations and Strategic Arrangements” below.

Our Drug Candidate Pipeline

Our  product  pipeline  contains  a  number  of  drug  candidates  under  development  internally  and  with  our  biotechnology  and  pharmaceutical  collaborators.  The  following
discussion summarizes key information regarding our current drug candidates, organized by our internal programs and our collaborators’ programs:

XCART

XCART is a personalized CAR T cell platform technology engineered to target patient-specific tumor neoantigens. We believe XCART has the potential to offer cancer patients
substantial benefits over the existing standard of care and currently approved CAR T therapies including enhanced the safety and efficacy of cell therapy for B-cell lymphomas.
We are initially advancing cell-based therapeutics targeting the unique B-cell receptor on the surface of an individual patient’s malignant tumor cells, for the treatment of B-cell
lymphomas.

On March 1, 2019 we entered into agreements with Hesperix and OPKO to acquire all of the right, title, and interest throughout the world in and to patents related to the XCART
technology and closed the Transaction on July 19, 2019. By acquiring this novel and differentiated CAR T technology, the Company will be positioned in a field that is at the
forefront in the development of new oncology therapeutics. The XCART platform was designed to target personalized, patient-specific tumor neoantigens and has demonstrated
proof of mechanism in B-cell lymphoma, an area of significant unmet medical need. In addition, the acquisition of XCART fits with our current strategy of focusing on research
addressing unmet needs in oncology. Our R&D efforts will focus initially on leveraging the XCART platform to develop cell-based therapeutics for the treatment of B-cell Non-
Hodgkin lymphomas, an initial global market opportunity estimated to exceed $5 billion per year.

9

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ErepoXen

ErepoXen, or polysialylated erythropoietin (“PSA-EPO”), uses our PolyXen platform technology for the treatment of anemia in chronic kidney disease (“CKD”) patients. It is
designed  to  reduce  the  dosing  frequency  by  extending  the  circulating  half-life  of  the  therapeutic  in  the  body.  We  are  not  pursuing  clinical  development  of  ErepoXen  but
continue to entertain out-license opportunities for the drug candidate in our licensed territories.

We have collaboration agreements with SynBio LLC (“SynBio”) and Serum Institute to develop and launch ErepoXen in limited markets pursuant to which we will collect
royalties if they are successful in these efforts.

Serum Institute conducted Phase I and Phase II clinical trials in 95 human subjects. These safety trials, which had no significant drug-related adverse events, provided us with
the data to commence a Phase II, repeat dosing, ICH compliant clinical trial for ErepoXen in Australia, New Zealand and South Africa for CKD patients not on dialysis. We
completed three cohorts of this study and then terminated the study.

In addition, Serum Institute finished Phase I/II clinical trials in India of ErepoXen for in-center-dialysis patients and plans to submit a clinical trial application to conduct a
Phase III clinical trial for PSA-EPO in India in 2020.

SynBio received regulatory approval and commenced a Phase II(b)/III human clinical trial of ErepoXen in Russia and expects to have patient recruitment completed in 2020.
SynBio intends to commence the commercialization and marketing stages of ErepoXen in the Russian and CIS markets subject to approval in such markets.

Drug Candidates in the Pipeline that are not Currently Active Internally or with Third Party Collaborators

XBIO-101

XBIO-101 is an internal candidate with orphan drug designation from the FDA for the potential treatment of progesterone receptor negative endometrial cancer in conjunction
with progesterone therapy. An IND application was submitted for XBIO-101 and is in effect for our Phase II clinical trial in the U.S.

We acquired certain IP rights with respect to XBIO-101, and the worldwide rights to develop, market and license XBIO-101 for certain uses, except for excluded uses within the
Commonwealth of Independent States (“CIS”), from AS Kevelt (“Kevelt”), a wholly-owned subsidiary of Pharmsynthez. We also acquired Kevelt’s orphan drug designation
from the FDA for the use of XBIO-101 in the treatment of PrR- endometrial cancer in conjunction with progesterone therapy.

XBIO-101 (sodium cridanimod), belongs to a class of low-molecular weight synthetic interferon, or IFN, inducers and is primarily used in a wide range of therapeutic areas
such as antiviral, antibacterial, antitumor, and inflammatory indications due to its ability to modify or regulate one or more immune system functions. We believe XBIO-101
may also prove to be therapeutically relevant in hormone-resistant cancers by increasing the levels of PrR expression in tumor tissue of patients who are PrR deficient. As such,
it may restore the sensitivity of non-responsive endometrial cancers to hormonal (e.g., progestin) therapy. Accordingly, our initial focus was on the use of XBIO-101 for the
treatment of endometrial cancer.

Our  decision  to  investigate  XBIO-101  for  the  treatment  of  endometrial  cancer  was  based  in  part  on  the  history  of  sodium  cridanimod  in  preclinical  and  clinical  research
conducted by others, including prior clinical trials conducted and completed in Russia that assessed the efficacy and safety of sodium cridanimod. Sodium cridanimod has been
authorized for medicinal use in the Russian Federation for over 20 years with millions of doses estimated to have been sold for the treatment of non-cancer indications. XBIO-
101 is also known under the brand names Neovir, Camedon and Primavir.

10

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The extensive clinical testing conducted by others, as well as the marketing history of sodium cridanimod, provided support for our authorization to proceed directly with a
Phase II efficacy study under our U.S. IND for the use of sodium cridanimod in conjunction with progestin therapy in patients with progestin resistant, recurrent or persistent
endometrial cancer. We commenced a Phase II trial under an IND in 2017, with first patient dosed in October 2017. We closed patient enrollment in the trial in March 2019 as a
result of slower than expected progress on the trial resulting from patient enrollment and retention challenges and have suspended further development of XBIO-101.

OncoHist

Our  drug  candidate  OncoHist,  which  has  clinical  proof  of  concept,  utilizes  the  properties  of  modified  human  histone  H1.3  for  targeted  cell  killing.  We  were  previously
researching  and  developing  OncoHist  for  the  treatment  of  relapsed  or  resistant  acute  myeloid  leukemia  (“AML”).  We  completed  non-clinical  toxicity  studies  and  had  a
productive, in-person pre-IND meeting with the FDA in August 2015 where manufacturing and clinical matters were addressed, including guidance from the FDA regarding
inclusion of an additional indication besides AML in our proposed Phase I clinical trial. However, our efforts in developing this drug candidate have been on hold since 2016
due to capital constraints.

Pipeline Expansion Opportunities

Operating under licenses from us within their home markets, our collaborators can potentially generate preclinical and clinical data related to our technologies across a wide
spectrum of therapeutic areas. Under these agreements, we retain all rights for major markets and co-own the clinical data. We therefore have the opportunity to utilize the data
in our decision-making process regarding development and commercialization in major markets. We expect to be able to utilize the results from substantially all of the clinical
toxicity data and other clinical data generated in the development of XBIO-101 and PolyXen, and potentially for OncoHist, and ImuXen, if any, for a variety of orphan oncology
indications and next generation biologic drugs.

Significant Co-Development Collaborations and Strategic Arrangements

Takeda (f/k/a Shire plc)

We  are  a  party  to  an  exclusive  research,  development  and  license  agreement  with  Baxalta  US  Inc.  and  Baxalta AB,  wholly-owned  subsidiaries  of  Takeda,  related  to  the
development of a novel series of polysialylated blood coagulation factors. This collaboration with Takeda relies on our PolyXen technology to conjugate PSA to therapeutic
blood-clotting factors, with the goal of improving the pharmacokinetic profile and extending the active half-life of these biologic molecules. The agreement grants Takeda a
worldwide, exclusive, royalty-bearing license to our PSA patented and proprietary technology in combination with Takeda’s proprietary molecules designed for the treatment of
blood and bleeding disorders. The first program under this agreement was a next generation Factor VIII protein product candidate (“SHP656”).

In  May  2017,  we  announced  that  Takeda  had  terminated  further  development  of  SHP656,  its  polysialylated  rFVIII  drug  candidate  for  the  treatment  of  hemophilia,  being
developed using our proprietary PolyXen technology. While Takeda’s Phase I/II trial demonstrated SHP656’s efficacy and pharmacokinetic data commensurate with the profile
of an extended half-life rFVIII product, the pre-defined once-weekly dosing criterion set forth in the research, development, license and supply agreement was not met. Based
on  Takeda’s  published  research,  there  were  no  treatment-emergent  adverse  events  reported.  Though  the  trial’s  pre-defined  once-weekly  dosing  criterion  was  not  met,  we
continue to explore the potential for future collaborations with Takeda and Takeda has commenced a new, undisclosed internal project under the agreement.

11

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
In October 2017, we entered into a Right of Sublicense Agreement (the “Sublicense Agreement”) with Baxalta Incorporated, Baxalta US Inc., and Baxalta GmbH (collectively,
with their affiliates, “Baxalta”) wholly-owned subsidiaries of Takeda. Pursuant to the Sublicense Agreement, we granted to Baxalta the right to grant a nonexclusive sublicense
to  certain  patents  related  to  our  PolyXen  technology  that  were  previously  exclusively  licensed  to  Baxalta  in  connection  with  products  related  to  the  treatment  of  blood  and
bleeding  disorders  (“Covered  Products”).  Pursuant  to  the  Sublicense Agreement,  Baxalta  (i)  paid  us  a  one-time  payment  of  seven  million  five  hundred  thousand  dollars
($7,500,000) in November 2017 and (ii) agreed to pay us single digit royalty payments based upon net sales of the Covered Products throughout the term. We recognized the
one-time payment of $7.5 million as license revenue in connection with this Sublicense Agreement during the year ended December 31, 2017. Royalty payments on net sales of
the Covered Products commenced during the fourth quarter of 2019.

SynBio LLC

In August 2011, we entered into a stock subscription and collaborative development agreement with SynBio (the “Co-Development Agreement”), pursuant to which we granted
SynBio an exclusive license to develop, market and commercialize certain drug candidates utilizing molecules based on our PolyXen and OncoHist platform technologies in
Russia  and  the  CIS,  collectively  referred  to  herein  as  the  SynBio  Market.  In  exchange  for  our  granting  to  SynBio  those  certain  license  rights,  SynBio  granted  an  exclusive
license to us to use any SynBio preclinical and clinical data generated by SynBio and to engage in the development and commercialization of drug candidates that may arise
from the collaboration in any territory outside of the SynBio Market based upon the Co-Development Agreement.

We hope and expect to mitigate certain technical and commercial risks of drug development by working in collaboration with SynBio. Under the Co-Development Agreement,
SynBio is responsible for progressing six new product candidates through human proof of concept trials in Russia as primary validation for the initiation of European Medicines
Agency (“EMA”) or FDA clinical trials by us.

The  primary  goal  of  the  Co-Development Agreement  is  to  research  and  develop  drug  candidates  for  planned  commercialization  using  SynBio  and  our  combined  respective
expertise and technologies. Drug candidates must meet the success criteria as decided upon by a joint steering committee, which includes representation from both SynBio and
us,  where  we  have  the  right  to  appoint  the  chair  who  has  the  casting  vote.  Once  a  potential  drug  candidate  is  selected,  clinical  trials  will  be  separately  conducted  by  each
company in their respective territories with the goal to achieve regulatory approval of the products for commercial sale.

SynBio  is  wholly  responsible  for  funding  and  conducting  their  own  research  and  clinical  development  activities  in  Russia,  and  we  are  wholly  responsible  for  funding  and
conducting our own research and clinical development activities in the U.S., Europe and elsewhere outside the SynBio Market. There are no milestones or other research-related
payments provided for under the Co-Development Agreement other than fees for the provision of each party’s respective research supplies based on their technology. For the
years ended December 31, 2019 and 2018, we recognized no supply service revenues in connection with the Co-Development Agreement. Among other provisions, the parties
may terminate the Co-Development Agreement in relation to a particular product upon 30 days’ written notice, if such party, in its reasonable opinion, believes that a third-party
IP  right  exists,  which  would  have  a  material  effect  on  the  research  and/or  development  of  the  relevant  product.  Further,  the  parties  may  terminate  the  Co-Development
Agreement if the other party is in material breach of the Co-Development Agreement and, in the case of a breach capable of remedy, the breach is not remedied within 90 days
of receiving notice specifying the breach and requiring its remedy, or if the other party becomes insolvent. The parties also may terminate the Co-Development Agreement by
immediate written notice to the other party in relation to a specific product such as if product does not meet the relevant success criteria for the product.

In furtherance of our co-development clinical objectives, on December 31, 2014, we granted SynBio a warrant to purchase shares of our Common Stock that contain vesting
triggers  based  on  the  achievement  by  SynBio  of  certain  clinical  development  objectives  within  specific  timeframes  (the  “SynBio  2014  Warrant”).  Simultaneously  with  the
issuance of the SynBio 2014 Warrant, we granted additional warrants to purchase shares of our Common Stock to SynBio and Pharmsynthez non-director designees under the
same terms and conditions of the SynBio 2014 Warrant. The vesting criteria for the SynBio 2014 warrants was not met and, as a result, the warrants expired during the year
ended December 31, 2018. No warrants were exercised during the term of the warrants.

SynBio is a wholly-owned subsidiary of Pharmsynthez and all ownership percentages held by SynBio are combined with Pharmsynthez.

12

 
 
 
 
 
 
 
  
 
 
 
 
 
 
PJSC Pharmsynthez

In November 2009, we entered into a collaborative research and development license agreement with Pharmsynthez (the “Pharmsynthez Arrangement”) pursuant to which we
granted an exclusive license to Pharmsynthez to develop, commercialize and market six product candidates based on our PolyXen and ImuXen technology anywhere within
Russia and the CIS, as well as certain clinical and research data developed by us on the six product candidates. In exchange, Pharmsynthez granted us an exclusive license to
use  any  preclinical  and  clinical  data  developed  by  Pharmsynthez,  within  the  scope  of  the  Pharmsynthez Arrangement,  and  to  engage  in  further  research,  development  and
commercialization of drug candidates in any territory outside of Russia and the CIS at our own expense.

We expect to mitigate certain risks of drug development by reviewing human clinical data arising out of this collaboration with Pharmsynthez before we take a particular drug
candidate  into  FDA  and  EMA  trials.  Under  the  Pharmsynthez Arrangement,  Pharmsynthez  is  responsible  for  progressing  six  new  drug  candidates  through  human  proof  of
concept trials in Russia as primary validation prior to the initiation of EMA/FDA clinical trials by us outside of Russia. A joint steering committee, where we have the right to
appoint the chair who has the casting vote, was established to facilitate the communication of scientific data and to assist generally with each party’s research decisions and to
monitor research and development progress under the Pharmsynthez Arrangement.

Pharmsynthez  is  wholly  responsible  for  funding  and  conducting  its  own  research  and  clinical  development  activities  in  Russia.  We  are  wholly  responsible  for  funding  and
conducting our own research and clinical development activities in the U.S., Europe and the rest of the world outside of Russia and the ex-CIS regions. There are no milestones
or other research related payments provided for under the Pharmsynthez Arrangement other than royalties. Among other provisions, the parties may terminate the agreement in
relation to a particular product upon 30 days’ written notice, if such party, in its reasonable opinion, believe that a third-party intellectual property right exists which would have
a material effect on the research and/or development of the relevant product. Further, the parties may terminate the agreement if the other party is in material breach of the
agreement and, in the case of a breach capable of remedy, the breach is not remedied within 90 days of receiving notice specifying the breach and requiring its remedy, or if the
other party becomes insolvent. The parties also may terminate the agreement by immediate written notice to the other party in relation to a specific product if such product does
not meet the relevant success criteria for the product.

Pharmsynthez is an affiliate of the Company and a significant stockholder. Pharmsynthez directly, and indirectly through SynBio, has a share ownership in the Company of
approximately 7.4% of the total issued and outstanding Common Stock as of December 31, 2019. In addition to its Common Stock ownership, Pharmsynthez holds outstanding
warrants to purchase our Common Stock, approximately 1.5 million shares of our outstanding Series B Preferred Stock (as defined in Note 10, Stockholders’ Equity), and all of
our issued and outstanding Series A Preferred Stock (as defined in Note 10, Stockholders’ Equity) through SynBio.

During the third quarter of 2019, we entered into a sponsored research agreement with Pharmsynthez related to experiments identified by us to support our efforts as we prepare
for the initial tech transfer of the XCART methods to a future academic collaborator. Under the agreement, we made a $350,000 payment to Pharmsynthez during the third
quarter of 2019, which is refundable on a pro rata basis if the project is terminated prematurely as a result of Pharmsynthez failing to perform the work.

During the fourth quarter of 2019, we entered into a loan agreement with Pharmsynthez (the “Pharmsynthez Loan”), pursuant to which we advanced Pharmsynthez an aggregate
principal amount of up to $500,000 to be used for the development of Product A under the Co-Development Agreement. The Pharmsynthez Loan has a term of 15 months and
shall accrue interest at a rate of 10% per annum. The Pharmsynthez Loan is guaranteed by all of the operating subsidiaries of Pharmsynthez, including SynBio and AS Kevelt,
and is secured by all of the equity interests of the Company owned by Pharmsynthez and SynBio.

13

 
 
 
 
 
 
 
 
 
 
 
 
 
Serum Institute

In August 2011, we entered into a collaborative research and development agreement with Serum Institute (the “Serum Agreement”) providing Serum Institute an exclusive
license to use our PolyXen technology to research and develop one potential commercial product, PSA-EPO. Serum Institute is responsible for conducting all preclinical and
clinical  trials  required  to  achieve  regulatory  approvals  within  certain  predetermined  territories  at  Serum  Institute’s  own  expense.  Royalty  payments  are  payable  by  Serum
Institute to us for net sales to certain customers in the Serum Institute sales territory. Royalty payments are payable by us to Serum Institute for net sales received by us over the
term of the license. There are no milestone or other research-related payments due under the collaborative arrangement. No royalty, revenue or expense was recognized by us
related to the Serum Institute arrangement during the years ended December 31, 2019 and 2018.

Through December 31, 2019, we and Serum Institute continued to engage in research and development activities with no resultant commercial products. Among other reasons,
the parties may terminate the Serum Agreement by written notice if the other party is in material breach of the Serum Agreement and, in the case of a breach capable of remedy,
the breach is not remedied within 90 days of the other party receiving notice specifying the breach and requiring its remedy.

In furtherance of our co-development clinical objectives, on December 31, 2014, we granted to Serum Institute certain warrants to purchase our Common Stock that contain
vesting triggers based on the achievement by Serum Institute of certain clinical development objectives within specific timeframes (“Serum 2014 Warrant”). Simultaneously
with the issuance of the Serum 2014 Warrant, we issued additional warrants to purchase our Common Stock to Serum Institute non-director designees under the same terms and
conditions of the Serum 2014 Warrant. The Serum 2014 Warrant expired on December 30, 2019 and no warrants were exercised during the term of the Serum Warrants. In
addition, the Serum Agreement allows for Serum Institute to nominate a non-executive director to our Board of Directors as long as Serum Institute or its subsidiaries holds at
least 6% of our Common Stock. Serum Institute is a related party of ours and had a share ownership of less than 1% of our total issued Common Stock as of December 31,
2019.

Our Intellectual Property

We strive to protect and enhance the proprietary technology, inventions, and improvements that are commercially important to our business, including seeking, maintaining and
defending  patent  rights,  whether  developed  internally  or  licensed  from  our  collaborators  or  other  third-parties.  Our  policy  is  to  seek  to  protect  our  proprietary  position  by,
among other methods, filing patent applications in the U.S. and in jurisdictions outside of the U.S. covering our proprietary technology, inventions, improvements and product
candidates that are important to the development and implementation of our business. We also rely on trade secrets and know-how relating to our proprietary technology and
product candidates, continuing innovation, and in-licensing opportunities to develop, strengthen and maintain our proprietary position in the field of oncology. We also plan to
rely on data exclusivity, market exclusivity, and patent term extensions when available. Our commercial success will depend in part on our ability to obtain and maintain patent
and other proprietary protection for our technology, inventions, and improvements; to preserve the confidentiality of our trade secrets; to obtain and maintain licenses to use
intellectual property owned by third-parties; to defend and enforce our proprietary rights, including any patents that we may own in the future; and to operate without infringing
on the valid and enforceable patents and other proprietary rights of third-parties.

Our  drug  candidates  are  in  various  stages  of  development,  each  protected  by  patent  and  pending  patent  applications  in  the  U.S.  with  the  U.S.  Patent  and  Trademark  Office
(“USPTO”) and in certain other developed countries. Our first issued patents begin to expire starting in 2021 with the majority of the existing issued patents expiring between
2025 and 2030.

Our  patent  strategy  is  to  file  patent  applications  on  innovations  and  improvements  in  those  jurisdictions  that  comprise  the  major  pharmaceutical  markets  in  the  world  or
locations where a pharmaceutical may be manufactured. These jurisdictions include, but are not limited to, the U.S., U.K., Australia, Japan, Canada, South Korea, China, India,
Russia and certain other countries in the European Union (“E.U.”) and Asia, though we do not necessarily file a patent application in each of these jurisdictions for every patent
family.

14

 
 
 
  
 
  
 
 
 
 
 
 
 
 
As of March 6, 2020, we directly or indirectly own, through our wholly-owned subsidiary, Xenetic U.K., and its wholly-owned subsidiaries, Lipoxen, XTI and SymbioTec,
more than 170 U.S. and international patents that cover various aspects of our technologies. We have acquired or filed patent applications, and plan to file additional patent
applications, covering various aspects of our XCART platform technology including all rights throughout the world in and to patents and patent applications related to “Articles
And Methods Directed To Personalized Therapy Of Cancer,” and our PolyXen platform technology covering polysialylation and advanced polymer conjugate technologies,
respectively, as well as our other product candidates, including XBIO-101. More specifically, our patents and patent applications cover polymer architecture, drug conjugates,
formulations, methods of manufacturing polymers and polymer conjugates and methods of administering polymer conjugates. We may also file additional patent applications,
where possible, for XBIO-101 and OncoHist for additional uses and indications.

Our patent portfolio contains patents and patent applications that encompass our OncoHist platform technology including use of histones for the treatment of different cancers.
The OncoHist patent portfolio, acquired as part of our acquisition of SymbioTec in January 2012, includes OncoHist, a bis-Met histone H1.3. In addition, our licensed patent
portfolio includes patents issued in jurisdictions outside of the U.S. and licensed patent applications pending in jurisdictions outside of the U.S. that are foreign counterparts to
one or more of the foregoing U.S. patents and patent applications. The OncoHist portfolio also includes patents that cover the use of a histone protein as an antibiotic and to
treat thrombocytopenia and further as an antimicrobial component of a personal care product.

We have received patent protection for certain therapeutics that use our PolyXen technology linking the specific therapeutic to a PSA. These include, but are not limited to,
PSA-EPO, PSA-insulin and PSA-insulin like protein, SHP656 (PSA-rFVIII), PSA-DNase I and PSA-granulocyte colony stimulating factor (PSA-GCSF). Further patents cover
methods to prepare proteins that are linked to a PSA. These method patents include those that link a PSA to a protein in a high pH solution as well as patents that use a process
for producing an aldehyde derivative of a sialic acid through the opening and oxidation of a sialic acid unit. For instance, we have patent protection for a PSA linkage that can
be at the N-terminus.

We  have  received  patent  protection  for  the  production  of  PSA  and  the  removal  of  endotoxin  during  the  purification  process.  The  removal  of  endotoxin  occurs  through  the
addition of a high pH solution to the PSA and a process to separate a polydisperse ionically charged polysaccharide, such as PSA, into fractions of different average molecular
weight. This is accomplished through the use of a column and elution buffers with different and constant ionic strength and pH, resulting in a fractionated polysaccharide that
has a molecular weight polydispersity of 1.1 or lower.

Issued patents can provide protection for varying periods of time, depending upon the date of filing of the patent application, the date of patent issuance, and the legal term of
patents in the countries in which they are obtained. In general, patents issued for applications filed in the U.S. can provide exclusionary rights for 20 years from the earliest
effective filing date. In addition, in certain instances, the term of an issued U.S. patent that covers or claims an FDA approved product can be extended to recapture a portion of
the term effectively lost as a result of the FDA regulatory review period, which is called patent term extension. The restoration period cannot be longer than five years and the
total patent term, including the restoration period, must not exceed 14 years following FDA approval. The term of patents outside of the U.S. varies in accordance with the laws
of the foreign jurisdiction, but typically is also 20 years from the earliest effective filing date. However, the actual protection afforded by a patent varies on a product-by-product
basis, from country-to-country, and depends upon many factors, including the type of patent, the scope of its coverage, the availability of regulatory-related extensions, the
availability of legal remedies in a particular country, and the validity and enforceability of the patent.

In certain situations, where we work with drugs covered by one or more patents, our ability to develop and commercialize our technologies may be affected by limitations of our
access to these proprietary drugs. Even if we believe we are free to work with a proprietary drug, we cannot guarantee that we will not be accused of, or be determined to be,
infringing a third-party’s rights and be prohibited from working with the drug or found liable for damages. Any such restriction on access or liability for damages would have a
material adverse effect on our business, results of operations and financial condition.

15

 
 
 
 
 
 
 
 
 
 
 
 
The patent positions of pharmaceutical and biotechnology companies, such as ours, are uncertain and involve complex legal and factual issues. There can be no assurance that
patents that have issued will be held valid and enforceable in a court of law. Even for patents that are held valid and enforceable, the legal process associated with obtaining
such a judgment is time consuming and costly. Additionally, issued patents can be subject to opposition or other proceedings that can result in the revocation of the patent or
maintenance of the patent in amended form (and potentially in a form that renders the patent without commercially relevant and/or broad coverage). Further, our competitors
may be able to circumvent and otherwise design around our patents. Even if a patent is issued and enforceable, because development and commercialization of pharmaceutical
products  can  be  subject  to  substantial  delays,  patents  may  expire  early  and  provide  only  a  short  period  of  protection,  if  any,  following  the  commercialization  of  products
encompassed by our patent(s). We may have to participate in interference proceedings declared by the USPTO, which could result in a loss of the patent and/or substantial cost
to us. Further, we understand that if any of our pending patent applications do not issue, or are deemed invalid following issuance, we may lose valuable IP protection.

U.S. and foreign patent rights and other proprietary rights exist that are owned by third-parties and relate to pharmaceutical compositions and reagents, medical devices and
equipment and methods for preparation, packaging and delivery of pharmaceutical compositions. We cannot predict with any certainty which, if any, of these rights will be
considered relevant to our technology by authorities in the various jurisdictions where such rights exist, nor can we predict with certainty which, if any, of these rights will or
may be asserted against us by third-parties. We could incur substantial costs in defending ourselves and our partners against any such claims. Furthermore, parties making such
claims may be able to obtain injunctive or other equitable relief, which could effectively block our ability to develop or commercialize some or all of our products in the U.S.
and in other countries and could result in the award of substantial damages. In the event of a claim of infringement, we or our partners may be required to obtain one or more
licenses from third-parties. There can be no assurance that we can obtain a license to any technology that we determine we require on reasonable terms, if at all, or that we could
develop or otherwise  obtain  alternative  technology.  The  failure  to  obtain  licenses,  if  required,  may  have  a  material  adverse  effect  on  our  business,  results  of  operations  and
financial condition. Further, we may not be able to obtain IP licenses related to the development of our drug candidates on a commercially reasonable basis, if at all.

It is our policy to require our employees and consultants, outside scientific collaborators, sponsored researchers and other advisors who receive confidential information from
us to execute confidentiality agreements upon the commencement of employment or consulting relationships with us. These agreements provide that all confidential information
developed  or  made  known  to  the  individual  during  the  course  of  the  individual’s  relationship  with  us  is  to  be  kept  confidential  and  not  disclosed  to  third-parties  except  in
specific circumstances. The agreements provide that all inventions conceived by an employee shall be our property. There can be no assurance, however, that these agreements
will provide meaningful protection or adequate remedies for our trade secrets in the event of unauthorized use or disclosure of such information.

Manufacturing and Supply

We do not have the capability to manufacture our own materials necessary to support our drug candidate development programs nor do we intend to acquire such capability as
part  of  our  present  business  strategy.  We  currently  have  agreements  in  place  with  Serum  Institute  whereby  Serum  Institute  would  produce  clinical  materials  for  use  in  the
development of drug candidates involving our PolyXen technology, including candidates developed by our partners. We do not have any agreements in place to manufacture
clinical materials for use in the development of our XCART technology and anticipate seeking a third party manufacturer, including potentially an academic collaborator, for
our clinical supply needs.

Government Regulation

General

Government  authorities  in  the  U.S.,  at  the  federal,  state  and  local  level,  and  other  countries  extensively  regulate,  among  other  things,  the  research,  development,  testing,
manufacture, quality control, approval, labeling, packaging, storage, record-keeping, promotion, advertising, distribution, marketing and export and import of products such as
those we are developing. Generally, a new drug must be approved by the FDA through the NDA process and a new biologic must be licensed by the FDA through the biologics
license application (“BLA”) process before it may be legally marketed in the U.S.

16

 
 
 
 
 
 
 
 
 
 
 
 
 
 
U.S. Regulation

Drug Development Process

In the U.S., the FDA regulates drugs under the Federal Food, Drug, and Cosmetic Act (“FDCA”), and in the case of biologics, also under the Public Health Service Act, and
their  implementing  regulations.  The  process  of  obtaining  regulatory  approvals  and  the  subsequent  compliance  with  appropriate  federal,  state,  local  and  foreign  statutes  and
regulations  require  the  expenditure  of  substantial  time  and  financial  resources.  Failure  to  comply  with  the  applicable  U.S.  requirements  at  any  time  during  the  product
development process, approval process or after approval may subject an applicant to administrative or judicial sanctions. These sanctions could include the FDA’s refusal to
approve pending applications, withdrawal of an approval, license revocation, a clinical hold, warning letters or untitled letters, product recalls, product seizures, total or partial
suspension  of  production  or  distribution,  injunctions,  fines,  refusals  of  government  contracts,  restitution,  disgorgement  or  civil  or  criminal  penalties. Any  agency  or  judicial
enforcement action could have a material adverse effect on us.

The process required by the FDA before a drug or biologic may be marketed in the U.S. generally involves the following:

·

·

·

·

·

·

completion of preclinical laboratory tests, animal studies and formulation studies in accordance with Good Laboratory Practices (“GLP”) regulations and other
applicable regulations;

submission to the FDA of an IND, which must become effective before human clinical trials may begin;

performance of adequate and well-controlled human clinical trials in accordance with Good Clinical Practice (“GCP”) regulations to establish the safety and
efficacy of the proposed drug for its intended use;

submission to the FDA of an NDA or BLA;

satisfactory completion of an FDA inspection of the manufacturing facility or facilities at which the drug is produced to assess compliance with current Good
Manufacturing Practices (“cGMP”) requirements to assure that the facilities, methods and controls are adequate to preserve the drug’s identity, strength, quality
and purity; and

FDA review and approval of the NDA or BLA.

Once  a  pharmaceutical  candidate  is  identified  for  development,  it  enters  the  preclinical  testing  stage.  Preclinical  tests  include  laboratory  evaluations  of  product  chemistry,
toxicity and formulation, as well as animal studies. An IND sponsor must submit the results of the preclinical tests, together with manufacturing information and analytical
data, to the FDA as part of the IND. The sponsor will also include a protocol detailing, among other things, the objectives of the first phase of the clinical trial, the parameters to
be used in monitoring safety, and the effectiveness criteria to be evaluated, if the first phase lends itself to an efficacy evaluation. Some preclinical testing may continue even
after the IND is submitted. The IND automatically becomes effective 30 days after receipt by the FDA, unless the FDA, within the 30-day time period, places the clinical trial
on a clinical hold. 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
the FDA at any time before or during clinical trials due to safety concerns about ongoing or proposed clinical trials or noncompliance with specific FDA requirements, and the
trials may not begin or continue until the FDA notifies the sponsor that the hold has been lifted.

17

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
All clinical trials must be conducted under the supervision of one or more qualified investigators in accordance with GCP regulations. They must be conducted under protocols
detailing the objectives of the trial, dosing procedures, subject selection and exclusion criteria and the safety and effectiveness criteria to be evaluated. Each protocol must be
submitted  to  the  FDA  as  part  of  the  IND,  and  timely  safety  reports  must  be  submitted  to  the  FDA  and  the  investigators  for  serious  and  unexpected  adverse  events. An
institutional review board (IRB) at each institution participating in the clinical trial must review and approve each protocol before a clinical trial commences at that institution
and must also approve the information regarding the trial and the consent form that must be provided to each trial subject or his or her legal representative, monitor the study
until completed and otherwise comply with IRB regulations.

Human clinical trials are typically conducted in three sequential phases that may overlap or be combined:

·

·

·

Phase 1:  The  drug  candidate  is  initially  introduced  into  healthy  human  subjects  and  tested  for  safety,  dosage  tolerance,  absorption,  metabolism,  distribution  and
excretion. In the case of some products for severe or life-threatening diseases, such as cancer, especially when the product may be too inherently toxic to ethically
administer to healthy volunteers, the initial human testing is often conducted in patients.

Phase 2: This phase involves clinical trials in a limited patient population to identify possible adverse effects and safety risks, to preliminarily evaluate the efficacy
of the product for specific targeted diseases and to determine dosage tolerance and appropriate dosage.

Phase 3: Clinical trials are undertaken to further evaluate dosage, clinical efficacy and safety in an expanded patient population at geographically dispersed clinical
study sites. These clinical trials are intended to establish the overall risk-benefit ratio of the drug candidate and provide, if appropriate, an adequate basis for product
labeling.

Post-approval trials, sometimes referred to as Phase IV studies, may be conducted after initial marketing approval. These trials are used to gain additional experience from the
treatment of patients in the intended therapeutic indication. In certain instances, the FDA may mandate the performance of Phase IV clinical trials as a condition of approval of
an NDA or BLA.

The  FDA  or  the  sponsor  may  suspend  a  clinical  trial  at  any  time  on  various  grounds,  including  a  finding  that  the  research  subjects  or  patients  are  being  exposed  to  an
unacceptable health risk. Similarly, an IRB can suspend or terminate approval of a clinical trial at its institution if the clinical trial is not being conducted in accordance with the
IRB’s  requirements  or  if  the  drug  has  been  associated  with  unexpected  serious  harm  to  patients.  In  addition,  some  clinical  trials  are  overseen  by  an  independent  group  of
qualified experts organized by the sponsor, known as a data safety monitoring board or committee. Depending on its charter, this group may determine whether a trial may
move forward at designated check points based on access to certain data from the trial.

Concurrent  with  clinical  trials,  companies  usually  complete  additional  animal  studies  and  must  also  develop  additional  information  about  the  chemistry  and  physical
characteristics of the drug and 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  drug  candidate  and,  among  other  things,  the  manufacturer  must  develop  methods  for  testing  the  identity,
strength, quality and purity of the final drug. In addition, appropriate packaging must be selected and tested and stability studies must be conducted to demonstrate that the drug
candidate does not undergo unacceptable deterioration over its shelf life.

While the IND is active and before approval, progress reports summarizing the results of the clinical trials and nonclinical studies performed since the last progress report must
be submitted at least annually to the FDA, and written IND safety reports must be submitted to the FDA and investigators for serious and unexpected suspected adverse events,
findings from other studies suggesting a significant risk to humans exposed to the same or similar drugs, findings from animal or in-vitro testing suggesting a significant risk to
humans, and any clinically important increased incidence of a serious suspected adverse reaction compared to that listed in the protocol or investigator brochure.

18

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
There are also requirements governing the reporting of ongoing clinical trials and completed trial results to public registries. Sponsors of certain clinical trials of FDA-regulated
products are required to register and disclose specified clinical trial information, which is publicly available at www.clinicaltrials.gov. Information related to the product, patient
population, phase of investigation, trial sites and investigators and other aspects of the clinical trial is then made public as part of the registration. Sponsors are also obligated to
discuss the results of their clinical trials after completion. Disclosure of the results of these trials can be delayed until the new product or new indication being studied has been
approved.

U.S. Market Approval Process

The results of product development, preclinical and other non-clinical studies and clinical trials, along with descriptions of the manufacturing process, analytical tests conducted
on the chemistry of the drug, proposed labeling and other relevant information are submitted to the FDA as part of an NDA or BLA requesting approval to market the product.
The submission of an NDA or BLA is subject to the payment of user fees; a waiver of such fees may be obtained under certain limited circumstances. The FDA reviews all
NDAs and BLAs submitted to ensure that they are sufficiently complete for substantive review before it accepts them for filing. The FDA may request additional information
rather than accept an NDA or BLA for filing. In this event, the NDA or BLA must be resubmitted with the additional information. The resubmitted application also is subject to
review before the FDA accepts it for filing.

Once  the  submission  is  accepted  for  filing,  the  FDA  begins  an  in-depth  substantive  review.  The  FDA  may  refer  the  NDA  or  BLA  to  an  advisory  committee  for  review,
evaluation and recommendation as to whether the application should be approved and under what conditions. The FDA is not bound by the recommendation of an advisory
committee, but it generally follows such recommendations. The approval process is lengthy and often difficult, and the FDA may refuse to approve an NDA or BLA if the
applicable regulatory criteria are not satisfied or may require additional clinical or other data and information. Even if such data and information are submitted, the FDA may
ultimately decide that the NDA or BLA does not satisfy the criteria for approval. The FDA reviews an NDA to determine, among other things, whether a product is safe and
effective for its intended use and whether its manufacturing is cGMP-compliant to assure and preserve the product’s identity, strength, quality and purity. The FDA reviews a
BLA to determine, among other things whether the product is safe, pure and potent and the facility in which it is manufactured, processed, packed or held meets standards
designed to assure the product’s continued safety, purity and potency. Before approving an NDA or BLA, the FDA will inspect the facility or facilities where the product is
manufactured.

After the FDA evaluates an NDA or BLA, it will issue an approval letter or a Complete Response Letter. An approval letter authorizes commercial marketing of the drug with
prescribing  information  for  specific  indications. A  Complete  Response  Letter  indicates  that  the  review  cycle  of  the  application  is  complete  and  the  application  will  not  be
approved in its present form. A Complete Response Letter usually describes the specific deficiencies in the NDA or BLA identified by the FDA and may require additional
clinical data, such as an additional pivotal Phase 3 trial or other significant and time-consuming requirements related to clinical trials, nonclinical studies or manufacturing. If a
Complete Response Letter is issued, the sponsor must resubmit the NDA or BLA, addressing all of the deficiencies identified in the letter, or withdraw the application. Even if
such data and information are submitted, the FDA may decide that the NDA or BLA does not satisfy the criteria for approval.

If a product receives regulatory approval, the approval may be significantly limited to specific diseases and dosages or the indications for use may otherwise be limited, which
could restrict the commercial value of the product. In addition, the FDA may require a sponsor to conduct Phase 4 testing, which involves clinical trials designed to further
assess a drug’s safety and effectiveness after NDA or BLA approval, and may require testing and surveillance programs to monitor the safety of approved products which have
been commercialized. The FDA may also place other conditions on approval including the requirement for a risk evaluation and mitigation strategy (REMS) to assure the safe
use of the drug. If the FDA concludes a REMS is needed, the sponsor of the NDA or BLA must submit a proposed REMS. The FDA will not approve the NDA or BLA without
an  approved  REMS,  if  required. A  REMS  could  include  medication  guides,  physician  communication  plans  or  elements  to  assure  safe  use,  such  as  restricted  distribution
methods,  patient  registries  and  other  risk  minimization  tools.  Any  of  these  limitations  on  approval  or  marketing  could  restrict  the  commercial  promotion,  distribution,
prescription or dispensing of products. Marketing approval may be withdrawn for noncompliance with regulatory requirements or if problems occur following initial marketing.

19

 
 
 
 
 
 
 
 
 
 
 
 
Orphan Drug Act

The Orphan Drug Act provides incentives to manufacturers to develop and market drugs or biologics for rare diseases and conditions affecting fewer than 200,000 persons in the
U.S. at the time of application for orphan drug designation, or for a patient population greater than 200,000 in the U.S. where there is no reasonable expectation that the cost of
developing the drug or biologic will be recovered from sales in the U.S. The first developer to receive FDA marketing approval for an orphan drug is entitled to a seven-year
exclusive marketing period in the U.S. for that product. However, a drug that the FDA considers to be clinically superior to, or different from, another approved orphan drug,
even though for the same indication, may also obtain approval in the U.S. during the seven-year exclusive marketing period. In addition, holders of exclusivity for orphan drugs
are expected to assure the availability of sufficient quantities of their orphan drugs to meet the needs of patients. Failure to do so could result in the withdrawal of marketing
exclusivity for the drug.

Pediatric Information

Under the Pediatric Research Equity Act of 2007 (“PREA”), NDAs or BLAs or supplements to NDAs or BLAs must contain data to assess the safety and effectiveness of the
drug for the claimed indication(s) in all relevant pediatric sub-populations and to support dosing and administration for each pediatric sub-population for which the drug 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 for an
indication for which orphan drug designation has been granted. The Best Pharmaceuticals for Children Act (“BPCA”) provides sponsors of NDAs with an additional six-month
period of market exclusivity for all unexpired patent or non-patent exclusivity on all forms of the drug containing the active moiety if the sponsor submits results of pediatric
studies  specifically  requested  by  the  FDA  under  BPCA  within  required  timeframes.  The  Biologics  Price  Competition  and  Innovation Act  provides  sponsors  of  BLAs  an
additional six-month extension for all unexpired non-patent market exclusivity on all forms of the biologic containing the active moiety pursuant to the BPCA if the conditions
under the BPCA are met.

The Food and Drug Administration Safety and Innovation Act (“FDASIA”), which was signed into law on July 9, 2012, amended the FDCA. FDASIA requires that a sponsor
who is planning to submit a marketing application for a drug or biological product that includes a new active ingredient, new indication, new dosage form, new dosing regimen
or new route of administration submit an initial Pediatric Study Plan (“PSP”) within sixty days of an end-of-Phase II meeting or as may be agreed between the sponsor and
FDA. The initial PSP must include an outline of the pediatric study or studies that the sponsor plans to conduct, including study objectives and design, age groups, relevant
endpoints and statistical approach, or a justification for not including such detailed information, and any request for a deferral of pediatric assessments or a full or partial waiver
of the requirement to provide data from pediatric studies along with supporting information. FDA and the sponsor must reach agreement on the PSP. A sponsor can submit
amendments  to  an  agreed-upon  initial  PSP  at  any  time  if  changes  to  the  pediatric  plan  need  to  be  considered  based  on  data  collected  from  nonclinical  studies,  early  phase
clinical trials, and/or other clinical development programs.

Expedited Development and Review Programs

The FDA has a Fast Track program that is intended to expedite or facilitate the process for reviewing new drugs and biological products that meet certain criteria. Specifically,
new drugs and biological products are eligible for Fast Track designation if they are intended to treat a serious or life-threatening condition and demonstrate the potential to
address unmet medical needs for the condition. Fast Track designation applies to the combination of the product and the specific indication for which it is being studied. The
sponsor of a new drug or biologic may request the FDA to designate the drug or biologic as a Fast Track product at any time during the clinical development of the product.
Unique to a Fast Track product, the FDA may consider for review sections of the marketing application on a rolling basis before the complete application is submitted, if the
sponsor  provides  a  schedule  for  the  submission  of  the  sections  of  the  application,  the  FDA  agrees  to  accept  sections  of  the  application  and  determines  that  the  schedule  is
acceptable, and the sponsor pays any required user fees upon submission of the first section of the application.

20

 
 
 
 
 
 
 
 
 
 
 
 
 
Any product submitted to the FDA for marketing, including under a Fast Track program, may be eligible for other types of FDA programs intended to expedite development
and review, such as priority review and accelerated approval. Fast Track designation, priority review and accelerated approval do not change the standards for approval but may
expedite  the  development  or  approval  process. Any  product  is  eligible  for  priority  review  if  it  has  the  potential  to  provide  safe  and  effective  therapy  where  no  satisfactory
alternative therapy exists or a significant improvement in the treatment, diagnosis or prevention of a disease compared to marketed products. The FDA will attempt to direct
additional resources to the evaluation of an application for a new drug or biological product designated for priority review in an effort to facilitate the review. Additionally, a
product may be eligible for accelerated approval. Drug or biological products studied for their safety and effectiveness in treating serious or life-threatening illnesses and that
provide meaningful therapeutic benefit over existing treatments may receive accelerated approval, which means that they may be approved on the basis of adequate and well-
controlled clinical trials establishing that the product has an effect on a surrogate endpoint that is reasonably likely to predict a clinical benefit, or on the basis of an effect on a
clinical  endpoint  other  than  survival  or  irreversible  morbidity. As  a  condition  of  approval,  the  FDA  may  require  that  a  sponsor  of  a  drug  or  biological  product  receiving
accelerated approval perform adequate and well-controlled post-marketing clinical trials. In addition, the FDA currently requires as a condition for accelerated approval pre-
approval of promotional materials, which could adversely impact the timing of the commercial launch of the product. If the FDA concludes that a drug shown to be effective
can be safely used only if distribution or use is restricted, it will require such post-marketing restrictions as it deems necessary to assure safe use of the drug, such as distribution
restricted to certain facilities or physicians with special training or experience; or distribution conditioned on the performance of specified medical procedures.

FDASIA  established  a  new  category  of  drugs  and  biologics  referred  to  as  “breakthrough  therapies”  that  may  be  eligible  to  receive  Breakthrough  Therapy  Designation. A
sponsor  may  seek  FDA  designation  of  a  drug  or  biologic  candidate  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. The designation includes all of the
Fast  Track  program  features,  as  well  as  more  intensive  FDA  interaction  and  guidance.  The  Breakthrough  Therapy  Designation  is  a  distinct  status  from  both  accelerated
approval and priority review, which can also be granted to the same drug if relevant criteria are met. If a product is designated as breakthrough therapy, the FDA will expedite
the development and review of such drug. All requests for breakthrough therapy designation will be reviewed within 60 days of receipt, and the FDA will either grant or deny
the request.

Post-Approval Requirements

Once an approval is granted, the FDA may withdraw the approval if compliance with regulatory requirements or standards is not maintained  or  if  problems  occur  after  the
product  reaches  the  market.  Later  discovery  of  previously  unknown  problems  with  a  product  may  result  in  restrictions  on  the  product  or  even  complete  withdrawal  of  the
product from the market. After approval, some types of changes to the approved product, such as adding new indications, certain manufacturing changes and additional labeling
claims, are subject to further FDA review and approval. Drug and biologics manufacturers and other entities involved in the manufacture and distribution of approved drugs and
biologics are required to register their establishments with the FDA and certain state agencies, and are subject to periodic unannounced inspections by the FDA and certain state
agencies for compliance with cGMP regulations and other laws and regulations.

U.S. Patent Term Restoration and Marketing Exclusivity

The  Biologics  Price  Competition  and  Innovation Act,  or  BPCIA,  amended  the  Public  Health  Service Act  to  authorize  the  FDA  to  approve  similar  versions  of  innovative
biologics, commonly known as biosimilars. A competitor seeking approval of a biosimilar must file an application to establish its molecule as highly similar to an approved
innovator biologic, among other requirements. The BPCIA, however, bars the FDA from approving biosimilar applications for 12 years after an innovator biological product
receives initial marketing approval. This 12-year period of data exclusivity may be extended by six months, for a total of 12.5 years, if the FDA requests that the innovator
company conduct pediatric clinical investigations of the product.

Depending upon the timing, duration and specifics of the FDA approval of our drug candidates, some of our U.S. patents may be eligible for limited patent term extension under
the Drug Price Competition and Patent Term Restoration Act of 1984, commonly referred to as the Hatch-Waxman Amendments. The Hatch-Waxman Amendments permit a
patent  restoration  term  of  up  to  five  years  as  compensation  for  patent  term  lost  during  product  development  and  the  FDA  regulatory  review  process.  However,  patent  term
restoration cannot extend the remaining term of a patent beyond a total of 14 years from the product’s approval date. The patent term restoration period is generally one-half the
time between the effective date of an IND and the submission date of an NDA or BLA plus the time between the submission date of an NDA or BLA and the approval of that
application. Only one patent applicable to an approved drug is eligible for the extension and the application for the extension must be submitted prior to the expiration of the
patent.  The  USPTO,  in  consultation  with  the  FDA,  reviews  and  approves  the  application  for  any  patent  term  extension  or  restoration.  In  the  future,  we  intend  to  apply  for
restoration of patent term for one of our currently owned or licensed patents to add patent life beyond its current expiration date, depending on the expected length of the clinical
trials and other factors involved in the filing of the relevant NDA or BLA.

21

 
 
 
 
 
 
 
 
 
 
 
 
 
Marketing exclusivity provisions under the FDCA can also delay the submission or the approval of certain marketing applications. The FDCA provides a five-year period of
non-patent marketing exclusivity within the U.S. to the first applicant to obtain approval of an NDA for a new chemical entity. A drug is a new chemical entity if the FDA has
not  previously  approved  any  other  new  drug  containing  the  same  active  moiety,  which  is  the  molecule  or  ion  responsible  for  the  action  of  the  drug  substance.  During  the
exclusivity period, the FDA may not accept for review an abbreviated new drug application (ANDA), or a 505(b)(2) NDA submitted by another company for another drug
based on the same active moiety, regardless of whether the drug is intended for the same indication as the original innovator drug or for another indication, where the applicant
does not own or have a legal right of reference to all the data required for approval. However, an application may be submitted after four years if it contains a certification of
patent invalidity or non-infringement to one of the patents listed with the FDA by the innovator NDA holder. The FDCA also provides three years of marketing exclusivity for
an NDA, or supplement to an existing NDA if new clinical investigations, other than bioavailability studies, that were conducted or sponsored by the applicant are deemed by
the FDA to be essential to the approval of the application, for example new indications, dosages or strengths of an existing drug. This three-year exclusivity covers only the
modification for which the drug received approval on the basis of the new clinical investigations and does not prohibit the FDA from approving ANDAs for drugs containing the
active agent for the original indication or condition of use. Five-year and three-year exclusivity will not delay the submission or approval of a full NDA. However, an applicant
submitting a full NDA would be required to conduct or obtain a right of reference to all of the preclinical studies and adequate and well-controlled clinical trials necessary to
demonstrate safety and effectiveness.

Pediatric  exclusivity  is  another  type  of  regulatory  market  exclusivity  in  the  U.S.  under  the  BPCA.  Pediatric  exclusivity  provides  for  an  additional  six  months  of  marketing
exclusivity if a sponsor conducts clinical trials in children as addressed in the section named “Pediatric Information” above. In addition, orphan drug exclusivity, as described
above, may offer a seven-year period of marketing exclusivity, except in certain circumstances.

Foreign Regulation

In addition to regulations in the U.S., we will be subject to a variety of regulations in other jurisdictions governing, among other things, clinical trials and any commercial sales
and distribution of our drug candidates.

Whether  or  not  we  obtain  FDA  approval  for  our  drug  candidates,  we  must  obtain  the  requisite  approvals  from  regulatory  authorities  in  foreign  countries  prior  to  the
commencement of clinical trials or marketing of the drug candidates in those countries. Certain countries outside of the U.S. have a similar process that requires the submission
of a clinical trial application much like the IND prior to the commencement of human clinical trials. In the European Union, for example, a CTA must be submitted to each
country’s  national  health  authority  and  an  independent  ethics  committee,  much  like  the  FDA  and  the  IRB,  respectively.  Once  the  CTA  is  approved  in  accordance  with  a
country’s requirements, clinical study development may proceed.

The requirements and process governing the conduct of clinical trials, product approval and licensing, pricing and reimbursement vary from country to country. In all cases, the
clinical trials are conducted in accordance with GCP and the applicable regulatory requirements and the ethical principles that have their origin in the Declaration of Helsinki.

To obtain regulatory approval of an investigational drug or biological product under European Union regulatory systems, we must submit a marketing authorization application.
The application used to file the NDA or BLA in the U.S. is similar to that required in the European Union, with the exception of, among other things, country-specific document
requirements.  The  European  Union  also  provides  opportunities  for  market  exclusivity.  For  example,  in  the  European  Union,  upon  receiving  marketing  authorization,  new
chemical entities generally receive eight years of data exclusivity and an additional two years of market exclusivity. If granted, data exclusivity prevents regulatory authorities
in the European Union from referencing the innovator’s data to assess a generic application. During the additional two-year period of market exclusivity, a generic marketing
authorization can be submitted, and the innovator’s data may be referenced, but no generic product can be marketed until the expiration of the market exclusivity. However,
there  is  no  guarantee  that  a  product  will  be  considered  by  the  European  Union’s  regulatory  authorities  to  be  a  new  chemical  entity,  and  products  may  not  qualify  for  data
exclusivity. Products receiving orphan designation in the European Union can receive ten years of market exclusivity, during which time no similar medicinal product for the
same indication may be placed on the market. An orphan product can also obtain an additional two years of market exclusivity in the European Union for pediatric studies. No
extension to any supplementary protection certificate can be granted on the basis of pediatric studies for orphan indications.

22

 
 
 
 
 
 
 
 
 
 
 
 
 
The criteria for designating an “orphan medicinal product” in the European Union are similar in principle to those in the U.S. Under Article 3 of Regulation (EC) 141/2000, a
medicinal product may be designated as orphan if (1) it is intended for the diagnosis, prevention or treatment of a life-threatening or chronically debilitating condition; (2) either
(a) such condition affects no more than five in 10,000 persons in the European Union when the application is made, or (b) the product, without the benefits derived from orphan
status, would not generate sufficient return in the European Union to justify investment; and (3) there exists no satisfactory method of diagnosis, prevention or treatment of such
condition authorized for marketing in the European Union, or if such a method exists, the product will be of significant benefit to those affected by the condition, as defined in
Regulation  (EC)  847/2000.  Orphan  medicinal  products  are  eligible  for  financial  incentives  such  as  reduction  of  fees  or  fee  waivers  and  are,  upon  grant  of  a  marketing
authorization,  entitled  to  ten  years  of  market  exclusivity  for  the  approved  therapeutic  indication.  The  application  for  orphan  drug  designation  must  be  submitted  before  the
application for marketing authorization. The applicant will receive a fee reduction for the marketing authorization application if the orphan drug designation has been granted,
but  not  if  the  designation  is  still  pending  at  the  time  the  marketing  authorization  is  submitted.  Orphan  drug  designation  does  not  convey  any  advantage  in,  or  shorten  the
duration of, the regulatory review and approval process.

The 10-year market exclusivity may be reduced to six years if, at the end of the fifth year, it is established that the product no longer meets the criteria for orphan designation,
for example, if the product is sufficiently profitable not to justify maintenance of market exclusivity. In addition, marketing authorization may be granted to a similar product for
the same indication at any time if:

·

·

·

the second applicant can establish that its product, although similar, is safer, more effective or otherwise clinically superior;

the applicant consents to a second orphan medicinal product application; or

the applicant cannot supply enough orphan medicinal product. 

For other countries  outside  of  the  European  Union,  such  as  countries  in  Eastern  Europe,  Latin America  or Asia,  the  requirements  governing  the  conduct  of  clinical  studies,
product licensing or approval, pricing and reimbursement vary from country to country. In all cases, again, the clinical studies are conducted in accordance with GCP and the
applicable regulatory requirements and the ethical principles that have their origin in the Declaration of Helsinki.

If  we  fail  to  comply  with  applicable  foreign  regulatory  requirements,  we  may  be  subject  to,  among  other  things,  fines,  suspension  or  withdrawal  of  regulatory  approvals,
product recalls, seizure of products, operating restrictions and criminal prosecution.

Other Regulatory Matters

Manufacturing, sales, promotion and other activities following product approval are also potentially subject to regulation by numerous regulatory authorities in addition to the
FDA,  including,  in  the  U.S.,  the  Centers  for  Medicare  &  Medicaid  Services,  other  divisions  of  the  Department  of  Health  and  Human  Services,  the  Drug  Enforcement
Administration, the Consumer Product Safety Commission, the Federal Trade Commission, the Occupational Safety & Health Administration, the Environmental Protection
Agency  and  state  and  local  governments.  In  the  U.S.,  sales,  marketing  and  scientific/educational  programs  must  also  comply  with  state  and  federal  fraud  and  abuse  laws,
including state and federal anti-kickback, false claims, data privacy and security and physician payment transparency laws. Pricing and rebate programs must comply with the
Medicaid  rebate  requirements  of  the  U.S.  Omnibus  Budget  Reconciliation Act  of  1990  and  more  recent  requirements  in  the  Patient  Protection  and Affordable  Care Act,  as
amended by the Health Care and Education Reconciliation Act of 2010, collectively the Affordable Care Act. If products are made available to authorized users of the Federal
Supply  Schedule  of  the  General  Services Administration,  additional  laws  and  requirements  apply.  The  handling  of  any  controlled  substances  must  comply  with  the  U.S.
Controlled  Substances Act  and  Controlled  Substances  Import  and  Export Act.  Products  must  meet  applicable  child-resistant  packaging  requirements  under  the  U.S.  Poison
Prevention Packaging Act. Manufacturing, sales, promotion and other activities are also potentially subject to federal and state consumer protection and unfair competition laws.

23

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The  distribution  of  pharmaceutical  products  is  subject  to  additional  requirements  and  regulations,  including  extensive  record-keeping,  licensing,  storage  and  security
requirements intended to prevent the unauthorized sale of pharmaceutical products.

The failure to comply with regulatory requirements may subject us to possible legal or regulatory action. Depending on the circumstances, failure to meet applicable regulatory
requirements can result in criminal prosecution, fines or other penalties, injunctions, recall or seizure of products, total or partial suspension of production, denial or withdrawal
of  product  approvals,  or  refusal  to  allow  a  firm  to  enter  into  supply  contracts,  including  government  contracts.  In  addition,  even  if  a  firm  complies  with  FDA  and  other
requirements, new information regarding the safety or efficacy of a product could lead the FDA to modify or withdraw product approval. Prohibitions or restrictions on sales or
withdrawal of future products marketed by us could materially affect our business in an adverse way.

Changes in regulations, statutes or the interpretation of existing regulations could impact our business in the future by requiring, for example: (i) changes to our manufacturing
arrangements; (ii) additions or modifications to product labeling; (iii) the recall or discontinuation of our products; or (iv) additional record-keeping requirements. If any such
changes were to be imposed, they could adversely affect the operation of our business.

Reimbursement

In both domestic and foreign markets, sales and reimbursement of any approved products will depend, in part, on the extent to which the costs of such products will be covered
by third-party payors, such as government health programs, commercial insurance and managed healthcare organizations. These third-party payors are increasingly challenging
the prices charged for medical products and services and imposing controls to manage costs. The containment of healthcare costs has become a priority of federal and state
governments and the prices of drugs have been a focus in this effort. Governments have shown significant interest in implementing cost-containment programs, including price
controls, restrictions on reimbursement and requirements for substitution of generic products. For example, in the U.S. 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, reduce the cost of drugs under Medicare, and reform government program reimbursement methodologies for drugs. Additionally, in May 2018,
the  U.S.  presidential  administration  laid  out  a  “Blueprint”  to  lower  drug  prices  and  reduce  out  of  pocket  costs  of  drugs  that  contains  additional  proposals  to  increase
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. The Department of Health and Human Services, or HHS, has started the process of soliciting feedback on some of
these measures and, at the same time, is immediately implementing others under its existing authority.

In January 2019, the HHS Office of Inspector General proposed modifications to U.S. federal healthcare Anti-Kickback Statute safe harbors which, among other things, will
affect rebates paid by manufacturers to Medicare Part D plans, the purpose of which is to further reduce the cost of drug products to consumers. Although some of these and
other proposals may require authorization through additional legislation to become effective, members of Congress and the presidential administration have indicated that they
will continue to seek new legislative or administrative measures to control drug costs.

At the state level, legislatures have increasingly passed legislation and implemented regulations designed to control pharmaceutical and biological 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, to
encourage importation from other countries and bulk purchasing.

24

 
 
 
 
 
 
 
 
 
 
 
 
 
Within the U.S., if we obtain appropriate approval in the future to market any of our product candidates, we may seek approval and coverage for those products under Medicaid,
Medicare and the Public Health Service, or PHS, pharmaceutical pricing program and also seek to sell the products to federal agencies. Medicaid is a joint federal and state
program that is administered by the states for low income and disabled beneficiaries. Under the Medicaid Drug Rebate Program, manufacturers are required to pay a rebate for
each unit of product reimbursed by the state Medicaid programs. The amount of the rebate for each product is set by law and may be subject to an additional discount if certain
pricing increases more than inflation. Medicare is a federal program administered by the federal government that covers individuals age 65 and over as well as those with certain
disabilities.  Medicare  Part  D  provides  coverage  to  enrolled  Medicare  patients  for  self-administered  drugs  (i.e.,  drugs  that  do  not  need  to  be  administered  by  a  physician).
Medicare Part D is administered by private prescription drug plans approved by the U.S. government and each drug plan establishes its own Medicare Part D formulary for
prescription drug coverage and pricing, which the drug plan may modify from time-to-time. Medicare Part B covers most injectable drugs given in an in-patient setting, and
some drugs administered by a licensed medical provider in hospital outpatient departments and doctors’ offices. Medicare Part B is administered by Medicare Administrative
Contractors,  which  generally  have  the  responsibility  of  making  coverage  decisions.  Subject  to  certain  payment  adjustments  and  limits,  Medicare  generally  pays  for  Part  B
covered drugs based on a percentage of manufacturer-reported average sales price. Drug products are subject to discounted pricing when purchased by federal agencies via the
Federal Supply Schedule, or FSS. FSS participation is required for a drug product to be covered and paid for by certain federal agencies and for coverage under Medicaid,
Medicare Part B and the PHS pharmaceutical pricing program. FSS pricing is negotiated periodically with the Department of Veterans Affairs. FSS pricing is intended to not
exceed  the  price  that  a  manufacturer  charges  its  most-favored  non-federal  customer  for  its  product.  In  addition,  prices  for  drugs  purchased  by  the  Veterans Administration,
Department of Defense (including drugs purchased by military personnel and dependents through the TRICARE retail pharmacy program), Coast Guard, and PHS are subject to
a cap on pricing (known as the “federal ceiling price”) and may be subject to an additional discount if pricing increases more than inflation. To maintain coverage of drugs
under  the  Medicaid  Drug  Rebate  Program,  manufacturers  are  required  to  extend  discounts  to  certain  purchasers  under  the  PHS  pharmaceutical  pricing  program.  Purchasers
eligible for discounts include hospitals that serve a disproportionate share of financially needy patients, community health clinics and other entities that receive health services
grants from the PHS.

In March 2010, the U.S. Congress enacted the Patient Protection and Affordable Care Act and the Health Care and Education Reconciliation Act, or the Affordable Care Act,
which included changes to the coverage and payment for drug products under government health care programs. Since its enactment, there have been judicial and Congressional
challenges to numerous elements of the Affordable Care Act, as well as efforts by both the executive and legislative branches of the federal government to repeal or replace
certain aspects of the Affordable Care Act. For example, the President signed Executive Orders designed to delay the implementation of certain provisions of the Affordable
Care Act or otherwise circumvent some of the requirements for health insurance mandated by the Affordable Care Act. In addition, the U.S. Congress has considered legislation
that would repeal or repeal and replace all or part of the Affordable Care Act. While Congress has not passed comprehensive repeal legislation, it has enacted laws that modify
certain provisions of the Affordable Care Act, such as removing penalties, starting January 1, 2019, for not complying with the Affordable Care Act’s individual mandate to
carry  health  insurance,  delaying  the  implementation  of  certain  mandated  fees,  and  increasing  the  point-of-sale  discount  that  is  owed  by  pharmaceutical  manufacturers  who
participate  in  Medicare  Part  D.  In  December  2018,  a  Texas  U.S.  District  Court  Judge  ruled  that  the  Affordable  Care  Act  is  unconstitutional  in  its  entirety  because  the
“individual mandate” was repealed by Congress as part of the Tax Cuts and Jobs Act of 2017, or the Tax Act. The Texas U.S. District Court Judge, as well as the presidential
administration and the Centers for Medicare and Medicaid Services, or CMS, have stated that the ruling will have no immediate effect pending appeal of the decision, but it is
unclear how this decision, subsequent appeals, and other efforts to repeal and replace the Affordable Care Act will impact the Affordable Care Act and our business. Any other
executive, legislative or judicial action to “repeal and replace” all or part of the Affordable Care Act may have the effect of limiting the amounts that government agencies will
pay for healthcare products and services, which could result in reduced demand for our products or additional pricing pressure, or may lead to significant deregulation, which
could make the introduction of competing products and technologies much easier.

25

 
 
 
 
 
 
 
 
Environmental Regulation

In  addition  to  being  subject  to  extensive  regulation  by  the  FDA,  we  must  also  comply  with  environmental  regulation  insofar  as  such  regulation  applies  to  us  or  our  drug
candidates. Our costs of compliance with environmental regulation as applied to similar pharmaceutical companies are minimal, since we do not currently, nor do we intend to,
engage in the manufacturing of any of our drug candidates. We currently use unaffiliated manufacturers to produce all of our drug candidate material and receive final material
from such manufacturer, without any involvement on our part in the manufacturing process at any stage of the process.

Although we believe that our safety procedures for using, handling, storing and disposing of our drug candidate materials comply with the environmental standards required by
state and federal laws and regulations, we cannot completely eliminate the risk of accidental contamination or injury from these materials. We do not carry a specific insurance
policy to mitigate this risk to us or to the environment.

Employees

At December 31, 2019, we employed four full-time employees. We are not a party to any collective bargaining agreement with our employees; nor are any of our employees a
member of any labor unions. We may be subject to certain statutory and contractual obligations in instances where we terminate U.K.-based employees. These obligations,
which are ordinary and customary in the U.K., generally range from one to 12 months of wages for terminated employees and would not be expected to represent a material
adverse effect to us.

To complement our own professional staff, we utilize specialists in regulatory affairs, pharmacovigilance, process engineering, manufacturing, quality assurance, preclinical and
clinical development, accounting and business development. These individuals include scientific advisors as well as independent consultants.

Competition

The pharmaceutical and biotechnology industries are characterized by intense competition and rely heavily on the ability to move quickly, adapt to changing medical and market
needs, and to develop and maintain strong intellectual property positions. We believe that the development experience of our scientific and management team, as well as the
strength and promise of our drug candidates, provide us with a competitive advantage; nevertheless, we face potential competition from a myriad of sources many of which
operate with greater resources and more mature products. These include pharmaceutical and biotechnology companies, academic institutions, governmental agencies and public
and private research institutions. Competition is intense and is expected to increase.

Product and Technology Specific Competition

XCART for B-cell lymphomas

Should any product candidate incorporating the XCART platform technology be approved for use, we will face substantial competition. In addition to the current standard of
care for patients, commercial and academic clinical studies are being pursued by a number of parties in the field of immunotherapy. Early results from these studies have fueled
continued interest in T-cell immunotherapy. In addition, if approved, our CAR T cell programs would compete with currently marketed drugs and therapies used for treatment
of the indications we are addressing, and potentially with drug candidates currently in development for the same indications.

26

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
There  are  currently  two  CAR  T  therapies  approved  in  the  U.S.  and  EU:  Novartis’  Kymriah  (tisagenlecleucel)  and  Gilead  Sciences,  Inc.’s  and  Kite  Pharma’s  Yescarta
(axicabtagene ciloleucel). However, there are over 100 CAR T therapy products in development with more than 35 being allogeneic and off-the-shelf cell therapies. In addition,
depending on the diseases that our CAR T therapies target, we may face competition in the indication of interest from both CAR T therapies and other modalities such as small
molecules and antibodies.

T-cell  based  treatments  for  cancer,  such  as  CAR  T  and  TCR  therapies,  have  recently  been  an  area  of  significant  research  and  development  by  academic  institutions  and
biopharmaceutical companies. XCART therapies may compete with product candidates from a number of companies that are currently focused on this therapeutic modality,
which we estimate to include over 20 other companies.

PSA for Drug Delivery

Current competing platforms include PEGylation, Fc-fusion, albumin -fusion, HESylation, PASylation, and CTP-fusion, among others.

We also expect to compete with academic institutions and other smaller pharmaceutical companies during the drug development stage of our progress. In addition to competing
with universities and other research institutions in the development of drug products, therapies, technologies and processes, we may compete with other companies in acquiring
rights to products or technologies from universities. There can be no assurance that our products or drug candidates will be more effective or achieve greater market acceptance
than competitive products, or that these companies will not succeed in developing products and technologies that are more effective than those being developed for us or that
would render our products and technologies less competitive or obsolete.

Available Information

Our website address is www.xeneticbio.com. The information on, or that can be accessed through, our website is not part of this Annual Report on Form 10-K. Our Annual
Reports on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K and amendments to those reports are available, free of charge, on or through our
website  as  soon  as  practicable  after  we  electronically  file  such  forms,  or  furnish  them  to,  the  SEC.  The  SEC  maintains  an  internet  site  that  contains  reports,  proxy  and
information statements and other information regarding our filings at www.sec.gov.

In addition to disclosing current information pursuant to Section 13 or 15(d) of the Exchange Act and for reports of information required to be disclosed by Regulation FD
through our SEC filings, we also intend to disclose such current information through our investor relations website, press releases, public conference calls and webcasts.

 ITEM 1A – RISK FACTORS

Our business is subject to numerous risks. You should consider carefully the risks and uncertainties described below, in addition to other information contained in this Annual
Report  as  well  as  our  other  public  filings  with  the  Securities  and  Exchange  Commission.  Any  of  the  following  risks  could  have  a  material  adverse  effect  on  our  business,
financial condition, results of operations and prospects and cause the trading price of our Common Stock to decline.

27

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Risks Related to Our Financial Condition and Capital Requirements

We have never been profitable and may never achieve or sustain profitability.

We are a clinical stage biopharmaceutical company with a limited operating history. Pharmaceutical product and technology development is a highly speculative undertaking
and involves a substantial degree of risk. To date, we have focused primarily on developing our drug candidates, XBIO-101 and PolyXen, our biological platform technology,
and researching additional drug candidates. We have no products approved for commercial sale and have generated only limited revenue to date. Due to capital constraints in
2019 we focused solely on XBIO-101 and the acquisition of XCART. We anticipate that our primary focus will be on advancing the XCART technology through regulatory
approval and commercialization and that we will continue to incur significant research and development and other expenses related to our ongoing operations. As a result, we
have never been profitable and we may not achieve profitability in the foreseeable future, if at all. Our ability to generate profits in the future will depend on a number of factors,
including: 

·
·
·
·
·
·
·
·
·
·

Funding the costs relating to the research and development, regulatory approval, commercialization and sale and marketing of our drug candidates and technologies;
Market acceptance of our drug candidates and technologies;
Costs of acquiring and developing new drug candidates and technologies;
Ability to bring our drug candidates to market;
General and administrative costs relating to our operations;
Increases in our research and development costs;
Charges related to purchases of technology or other assets;
Establishing, maintaining and protecting our intellectual property rights;
Attracting, hiring and retaining qualified personnel; and
Our ability to raise additional capital.

As of December 31, 2019, we had an accumulated deficit of approximately $166.0 million. Substantial doubt exists about our ability to continue as a going concern in the long-
term  as  a  result  of  anticipated  capital  needs.  We  expect  to  incur  additional  significant  operating  losses  as  we  expand  our  research  and  development  activities  and  our
commercialization, marketing and sales efforts. We may also encounter unforeseen expenses, difficulties, complications, delays and other unknown factors that may adversely
affect  our  business.  In  addition,  because  of  the  numerous  risks  and  uncertainties  associated  with  pharmaceutical  product  development,  including  that  our  current  drug
candidates may not achieve the clinical endpoints of applicable trials, we are unable to predict the timing or amount of increased expenses, and if or when we will achieve or
maintain profitability. If we are unable to generate sufficient revenue from our operations to pay expenses or we are unable to obtain additional financing on commercially
reasonable terms, our business, financial condition and results of operations may be materially and adversely affected.

28

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We will require substantial additional funding to achieve our goals. Failure to obtain this necessary capital when needed on acceptable terms, or at all, may force us to
delay, limit or terminate our product development efforts, other operations or commercialization efforts.

Developing drug candidates is an expensive, risky and lengthy process, and we expect our expenses to increase in connection with our ongoing activities, particularly as we
continue the research and development of, continue and initiate clinical trials of, and seek marketing approval for, our drug candidates.

As  of  December  31,  2019,  we  had  cash  of  approximately  $10.4  million.  We  expect  that  we  will  require  additional  capital  to  commence  and  complete  clinical  trials,  obtain
regulatory approval for, and to commercialize, our drug candidates, including our other preclinical drug candidates and our future drug candidates. However, our operating plan
may  change  as  a  result  of  many  factors  currently  unknown  to  us,  and  we  may  need  to  seek  additional  funds  sooner  than  planned,  through  public  or  private  equity  or  debt
financings, third-party funding, marketing and distribution arrangements, as well as other collaborations, strategic alliances and licensing arrangements, or a combination of
these approaches. In any event, we will require additional capital to pursue preclinical and clinical activities, pursue regulatory approval for, and to commercialize, our longer
term pipeline drug candidates. Even if we believe we have sufficient funds for our current or future operating plans, we may seek additional capital if market conditions are
favorable or if we have specific strategic considerations.

Any additional fundraising efforts may divert our management from their day-to-day activities, which may adversely affect our ability to develop and commercialize our drug
candidates.  In  addition,  we  cannot  guarantee  that  future  financing  will  be  available  in  sufficient  amounts  or  on  terms  acceptable  to  us,  if  at  all.  Moreover,  the  terms  of  any
financing may negatively impact the holdings or the rights of our stockholders, and the issuance of additional securities, whether equity or debt, by us or the possibility of such
issuance may cause the market price of our shares to decline. The incurrence of indebtedness could result in increased fixed payment obligations and we may be required to
agree to certain restrictive covenants, such as limitations on our ability to incur additional debt, limitations on 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  are  unable  to  obtain  funding  on  a  timely  basis,  we  may  be  required  to  significantly  curtail,  delay  or  discontinue  our  pre-clinical  development  program  or  the
commercialization of any drug candidates. We may also be unable to expand our operations or otherwise capitalize on our business opportunities, as desired, which could harm
our business, financial condition and results of operations.

Raising additional capital may cause dilution to our stockholders, restrict our operations or require us to relinquish rights to our technologies or drug candidates.

Until such time, if ever, as we can generate substantial product revenues, we expect to finance our cash needs through a combination of equity and debt financings, as well as
selectively continuing to enter into collaborations, strategic alliances and licensing arrangements. We do not currently have any committed external source of funds. To the
extent that we raise additional capital through the sale of equity or convertible debt securities, equity interests will be diluted, and the terms of these securities may include
liquidation  or  other  preferences  that  adversely  affect  the  rights  of  our  stockholders.  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 or declaring dividends, and may be secured by all or a portion of
our assets.

If we raise funds by selectively continuing to enter into collaborations, strategic alliances or licensing arrangements with third-parties, we may have to relinquish additional
valuable rights to our technologies, future revenue streams, research programs or drug candidates, or grant licenses on terms that may not be favorable to us. If we are unable to
raise  additional  funds  through  equity  or  debt  financings  when  needed,  we  may  be  required  to  delay,  limit,  reduce  or  terminate  our  product  development  or  future
commercialization  efforts  or  grant  rights  to  develop  and  market  drug  candidates  that  we  would  otherwise  prefer  to  develop  and  market  ourselves.  If  we  are  unable  to  raise
additional funds through collaborations, strategic alliances or licensing arrangements, we may be required to terminate product development or future commercialization efforts
or to cease operations altogether.

29

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Risks Related to the Discovery and Development of our Pharmaceutical Products

Our business is substantially dependent on the success of XCART.

Our business will substantially depend on the successful clinical development, regulatory approval and commercialization of the XCART platform technology. It will require
substantial  clinical  development  and  regulatory  approval  efforts  before  we  are  permitted  to  commence  its  commercialization,  if  ever.  We  plan  to  pursue  our  clinical
development  strategy  through  an  academic  collaboration.  If  we  have  difficulty  obtaining,  or  are  unable  to  obtain,  and  maintaining  one  or  more  academic  collaborations  as
planned, we may need to delay, limit or terminate any ongoing or planned clinical development, which would have an adverse effect on our business. The clinical trials and
manufacturing and marketing of XCART and any other product candidates will be subject to extensive and rigorous review and regulation by numerous government authorities
in the United States, the European Union and other jurisdictions where we intend to test and, if approved, market our product candidates. Before obtaining regulatory approvals
for the commercial sale of any product candidate, we must demonstrate through preclinical testing and clinical trials that the product candidate is safe and effective for use in
each target indication, and potentially in specific patient populations. This process can take many years and may include post-marketing studies and surveillance, which would
require the expenditure of substantial resources beyond the proceeds we have currently raised. Of the large number of drugs in development for approval in the United States
and the European Union, only a small percentage successfully complete the FDA or European Medicines Agency, or EMA, regulatory approval processes, as applicable, and are
commercialized. Accordingly, even if we are able to obtain the requisite financing or identify an academic collaboration partner to continue to fund our research, development
and clinical programs, we cannot assure you that XCART or any of our other product candidates will be successfully developed or commercialized.

We  are  an  early  stage  company  in  the  business  of  developing  pharmaceutical  products  including  drug  candidates  and  technologies.  Given  the  uncertainty  of  such
development, our business operations may never fully materialize and create value for investors.

We currently do not have any products that have gained marketing approval. We have invested substantially all of our efforts and financial resources developing ErepoXen,
OncoHist, XBIO-101 and, more recently XCART. Our revenues to date consist primarily of collaboration revenue from a single partner and not from product sales. Our ability
to generate product revenues, which may not occur for several years, if ever, will depend on the successful development and eventual commercialization of our drug candidates.
We currently generate royalty revenue under a sub-license agreement but do not have revenue from sales of any drugs, and we may never be able to develop or commercialize a
marketable drug. Each of our drug candidates will require development, management of development and manufacturing activities, marketing approval in multiple jurisdictions,
obtaining manufacturing supply, building of a commercial organization, substantial investment and significant marketing efforts before we generate any revenues from drug
sales. We have not yet demonstrated an ability to successfully overcome many of the risks and uncertainties frequently encountered by companies in new and rapidly evolving
fields, particularly in the pharmaceutical area. For example, to execute our business plan we will need to successfully:

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Execute development activities for our drug candidates, including successful enrollment in and completion of clinical trials;
Obtain required marketing approvals for the development and commercialization of our drug candidates;
Obtain and maintain patent and trade secret protection or regulatory exclusivity for our drug candidates;
Protect, leverage and expand our intellectual property portfolio;
Establish  and  maintain  clinical  and  commercial  manufacturing  capabilities  or  make  arrangements  with  third-party  manufacturers  for  clinical  and  commercial
manufacturing;
Build  and  maintain  robust  sales,  distribution  and  marketing  capabilities,  either  on  our  own  or  in  collaboration  with  strategic  partners,  if  our  drug  candidates  are
approved;
Gain acceptance for our drug candidates, if approved, by patients, the medical community and third party payors;
Effectively compete with other therapies;
Obtain and maintain healthcare coverages and adequate reimbursement;
Maintain a continued acceptable safety profile for our drug candidates following approval;
Develop and maintain any strategic relationships we elect to enter into, if any;
Enforce and defend intellectual property rights and claims; and
Manage our spending as costs and expenses increase due to preclinical development, clinical trials, marketing approvals and commercialization.

30

 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We may find it difficult to enroll patients in our clinical studies, which could delay or prevent clinical studies of our pharmaceutical products.

Identifying and qualifying patients to participate in clinical studies of our pharmaceutical products is critical to our success. The timing of our clinical studies depends on the
speed at which we can recruit patients to participate in testing our pharmaceutical products. We may experience delays. If patients are unwilling to participate in our clinical
studies  because  of  negative  publicity  from  adverse  events  in  the  biopharmaceutical  industries  or  for  other  reasons,  including  competitive  clinical  studies  for  similar  patient
populations,  the  timeline  for  recruiting  patients,  conducting  studies  and  obtaining  regulatory  approval  of  potential  products  may  be  delayed.  These  delays  could  result  in
increased costs, delays in advancing our product development, delays in testing the effectiveness of our technology or termination of the clinical studies altogether.

We may not be able to identify, recruit and enroll a sufficient number of patients, or those with required or desired characteristics to achieve diversity in a study, to complete
our clinical studies in a timely manner. Patient enrollment is affected by many factors including:

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Severity of the disease under investigation;
Real or perceived availability of alternative treatments;
Size and nature of the patient population;
Eligibility criteria for and design of the trial in question;
Perceived risks and benefits of the drug candidate under study;
Proximity and availability of clinical sites for prospective patients;
Ongoing clinical trials of potentially competitive agents;
Physicians’ and patients’ perceptions as to the potential advantages of our drug candidates being studied in relation to available therapies or other products under
development;
Our CRO’s and our trial sites’ efforts to facilitate timely enrollment in clinical trials;
Patient referral practices of physicians; and
The need to monitor patients and collect patient data adequately during and after treatment.

We may not be able to initiate or continue clinical studies if we cannot enroll a sufficient number of eligible patients to participate in the clinical studies required by the FDA or
other  regulatory  agencies.  Our  ability  to  successfully  initiate,  enroll  and  complete  a  clinical  study  in  any  foreign  country  is  subject  to  numerous  risks  unique  to  conducting
business in foreign countries, including:

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Difficulty in establishing or managing relationships with CROs and physicians;
Different standards for the conduct of clinical studies;
Our inability to locate qualified local consultants, physicians and partners; and
The potential burden of complying with a variety of foreign laws, medical standards and regulatory requirements, including the regulation of pharmaceutical and
biotechnology products and treatment.

If we have difficulty enrolling a sufficient number of patients to conduct our clinical studies as planned, we may need to delay, limit or terminate ongoing or planned clinical
studies, any of which would have an adverse effect on our business.

.

31

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We may encounter substantial delays in commencement, enrollment or completion of our clinical trials or we may fail to demonstrate safety and efficacy to the satisfaction
of applicable regulatory authorities, which could prevent us from commercializing our current and future drug candidates on a timely basis, if at all.

Before obtaining marketing approval from regulatory authorities for the sale of our current and future drug candidates, we must conduct extensive clinical trials to demonstrate
the safety and efficacy of the drug candidates. We cannot guarantee that any clinical studies will be conducted as planned or completed on schedule, if at all. A failure of one or
more clinical studies can occur at any stage of testing. Events that may prevent successful or timely completion of clinical development include:

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Delays in reaching a consensus with regulatory agencies on study design;
Delays in reaching agreement on acceptable terms with prospective CROs and clinical study sites;
Delays in obtaining required Institutional Review Board, or Independent Ethics Committee approval at each clinical study site;
Delays in recruiting suitable patients to participate in our clinical studies;
Imposition of a clinical hold by regulatory agencies, including after an inspection of our clinical study operations or study sites;
Failure by our CROs, other third-parties or us to adhere to clinical study requirements;
Failure to perform in accordance with the FDA’s GCP, or applicable regulatory requirements in other countries;
Delays in the testing, validation, manufacturing and delivery of our drug candidates to the clinical sites;
Delays in having patients complete participation in a study or return for post-treatment follow-up;
Clinical study sites or patients dropping out of a study;
Occurrence of serious adverse events associated with the drug candidate that are viewed to outweigh its potential benefits; or
Changes in regulatory requirements and guidance that require amending or submitting new clinical protocols.

Any inability to successfully complete preclinical studies and clinical trials could result in additional costs to us or impair our ability to generate revenues from product sales,
regulatory  and  commercialization  milestones  and  royalties.  In  addition,  if  we  make  manufacturing  or  formulation  changes  to  our  drug  candidates,  we  may  need  to  conduct
additional studies to bridge our modified drug candidates to earlier versions. Clinical trial delays also could shorten any periods during which we may have the exclusive right to
commercialize our drug candidates or allow our competitors to bring products to market before we do, which could impair our ability to successfully commercialize our drug
candidates and may harm our business, financial condition, results of operations and prospects.

If the results of our clinical studies are inconclusive or if there are safety concerns or adverse events associated with our pharmaceutical products, we may:

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Be delayed in obtaining marketing approval or licenses for our drug candidates, if at all;
Obtain approval for indications or patient populations that are not as broad as intended or desired;
Obtain approval with labeling that includes significant use or distribution restrictions or safety warnings;
Be subject to changes with the way the product is administered;
Be required to perform additional clinical studies to support approval or be subject to additional post-marketing testing requirements;
Have regulatory authorities withdraw their approval of the product or impose restrictions on its distribution in the form of a modified risk evaluation and mitigation
strategy;
Be subject to the addition of labeling statements, such as warnings or contraindications;
Be sued; or
Experience damage to our reputation.

As described above, any of these events could prevent us from achieving or maintaining market acceptance of our pharmaceutical products and impair our ability to generate
revenues.

32

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Clinical trials may fail to demonstrate the safety and efficacy of our pharmaceutical drug candidates and could prevent or significantly delay regulatory approval.

Before receiving NDA or BLA approval to commercialize a drug candidate, we must demonstrate to the FDA, with substantial evidence from well-controlled clinical trials, that
the drug candidate is both safe and effective or the biologic is safe, pure and potent. If these trials or future clinical trials are unsuccessful, our business and reputation could be
harmed and our stock price could be adversely affected.

Clinical failure can occur at any stage of clinical development. Clinical trials may produce negative or inconclusive results, and we or any of our current and future collaborators
may  decide,  or  regulators  may  require  us,  to  conduct  additional  clinical  or  preclinical  testing.  We  will  be  required  to  demonstrate  with  substantial  evidence  through  well-
controlled  clinical  trials  that  our  drug  candidates  are  as  safe  and  effective  for  use  in  a  specific  patient  population  as  the  respective  reference  products  before  we  can  seek
regulatory  approvals  for  their  commercial  sale.  Success  in  early  clinical  trials  does  not  mean  that  future  larger  registration  clinical  trials  will  be  successful  because  drug
candidates  in  later-stage  clinical  trials  may  fail  to  demonstrate  equivalent  safety  and  efficacy  to  the  satisfaction  of  the  FDA  and  foreign  regulatory  agencies  despite  having
progressed  through  initial  clinical  trials.  Drug  candidates  that  have  shown  promising  results  in  early  clinical  trials  may  still  fail  in  subsequent  confirmatory  clinical  trials.
Similarly,  the  outcome  of  preclinical  testing  and  early  clinical  trials  may  not  be  predictive  of  the  success  of  later  clinical  trials,  and  interim  results  of  a  clinical  trial  do  not
necessarily predict final results. 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, the design of a clinical trial can determine whether its results will support approval of a product and flaws in the design of a clinical trial may not become apparent
until  the  clinical  trial  is  well  advanced.  We  may  be  unable  to  design  and  execute  a  clinical  trial  to  support  regulatory  approval.  In  some  instances,  there  can  be  significant
variability  in  safety  or  efficacy  results  between  different  trials  of  the  same  drug  candidate  due  to  numerous  factors,  including  but  not  limited  to  changes  in  trial  protocols,
differences in size and type of the patient populations, adherence to the dosing regimen and the rate of dropout among clinical trial participants.

Because of these risks, our research and development efforts, and those of our collaborative partners, may not result in any commercially viable products. If a significant portion
of  these  development  efforts  is  not  successfully  completed,  or  if  required  regulatory  approvals  are  not  obtained  by  us  or  our  partners,  or  any  approved  products  are  not
commercially successful, we may not generate significant revenues or become profitable.

Even if we complete the necessary preclinical and clinical studies, we cannot predict when or if we will obtain regulatory approval to commercialize a drug candidate or the
approval may be for a more narrow indication than we expect.

A  drug  candidate  cannot  be  commercialized  until  the  appropriate  regulatory  authorities  have  reviewed  and  approved  the  drug  candidate.  Even  if  our  drug  candidates
demonstrate  safety  and  efficacy  in  clinical  studies,  the  regulatory  agencies  may  not  complete  their  review  processes  in  a  timely  manner,  or  we  may  not  be  able  to  obtain
regulatory approval. Additional delays may result if an FDA Advisory Committee or other regulatory advisory group or authority recommends non-approval or restrictions on
approval.  In  addition,  we  may  experience  delays  or  rejections  based  upon  additional  government  regulation  from  future  legislation  or  administrative  action,  or  changes  in
regulatory agency policy during the period of product development, clinical studies and the review process. Regulatory agencies also may approve a drug candidate for fewer or
more  limited  indications  than  requested  or  may  grant  approval  subject  to  the  performance  of  post-marketing  studies.  In  addition,  regulatory  agencies  may  not  approve  the
labeling claims that are necessary or desirable for the successful commercialization of our drug candidates. Failure to obtain, or a delay in obtaining, regulatory approval to
commercialize a drug candidate will impair our ability to generate revenues and harm our business prospects.

33

 
 
 
 
 
 
    
 
 
 
 
 
 
Even if we obtain regulatory approval for a drug candidate, our drug candidate will remain subject to regulatory scrutiny.

If our drug candidates are approved, they will be subject to ongoing regulatory requirements for manufacturing, labeling, packaging, storage, advertising, promotion, sampling,
record-keeping, conduct of post-marketing studies and submission of safety, efficacy and other post-market information, including both federal and state requirements in the
United States and requirements of comparable foreign regulatory authorities.

Manufacturers  and  manufacturing  facilities  are  required  to  comply  with  extensive  FDA,  and  comparable  foreign  regulatory  authority  requirements,  including  ensuring  that
quality control and manufacturing procedures conform to cGMP regulations. As such, we will be subject to continual review and inspections to assess compliance with cGMP
and  adherence  to  commitments  made  in  any,  BLA  or  marketing  authorization  application,  or  MAA. Accordingly,  we  and  our  collaborators  and  suppliers  must  continue  to
expend time, money and effort in all areas of regulatory compliance, including manufacturing, production and quality control.

Any  regulatory  approvals  that  we  or  our  collaboration  partners  receive  for  our  drug  candidates  may  be  subject  to  limitations  on  the  approved  indicated  uses  for  which  the
product may be marketed or to the conditions of approval or may contain requirements for potentially costly additional clinical trials and surveillance to monitor the safety and
efficacy  of  the  drug  candidate.  We  will  be  required  to  report  certain  adverse  reactions  and  production  problems,  if  any,  to  the  FDA  and  comparable  foreign  regulatory
authorities. Any new legislation addressing drug safety issues could result in delays in product development or commercialization, or increased costs to assure compliance. We
will have to comply with requirements concerning advertising and promotion for our products. Promotional communications with respect to prescription drugs are subject to a
variety of legal and regulatory restrictions and must be consistent with the information in the product’s approved label. As such, we are not allowed to promote our products for
indications or uses for which they do not have approval. If our drug candidates are approved, we must submit new or supplemental applications and obtain approval for certain
changes to the approved products, product labeling or manufacturing process. We could also be asked to conduct post-marketing clinical trials to verify the safety and efficacy of
our products in general or in specific patient subsets. An unsuccessful post-marketing study or failure to complete such a study could result in the withdrawal of marketing
approval.

If a regulatory agency discovers previously unknown problems with an approved product, such as adverse events of unanticipated severity or frequency or problems with our
manufacturing facilities, or if a regulatory agency disagrees with the promotion, marketing or labeling of a product, such regulatory agency may impose restrictions on that
product or us, including requiring withdrawal of the product from the market. If we fail to comply with applicable regulatory requirements, a regulatory agency or enforcement
authority may, among other things:

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Issue untitled and warning letters;
Impose civil or criminal penalties;
Suspend or withdraw regulatory approval or revoke a license;
Suspend any of our ongoing clinical trials;
Refuse to approve pending applications or supplements to approved applications submitted by us;
Impose restrictions on our operations, including closing our manufacturing facilities; or
Seize or detain products or require a product recall.

Any government investigation of alleged violations of law could require us to expend significant time and resources in response and could generate negative publicity. Any
failure  to  comply  with  ongoing  regulatory  requirements  may  significantly  and  adversely  affect  our  ability  to  commercialize  and  generate  revenue  from  our  products.  If
regulatory sanctions are applied or if regulatory approval is withdrawn, the value of the Company and our operating results will be negatively impacted.

34

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The commercial success of any current or future pharmaceutical products will depend upon the degree of market acceptance by physicians, patients, third-party payors and
others in the medical community.

Even  with  the  requisite  approvals,  the  commercial  success  of  our  pharmaceutical  products  will  depend  in  part  on  the  medical  community,  patients,  and  third-party  payors
accepting  our  pharmaceutical  products  as  medically  useful,  cost-effective,  and  safe. Any  pharmaceutical  product  that  we,  or  our  partners,  bring  to  the  market  may  not  gain
market  acceptance  by  physicians,  patients,  third-party  payors  or  others  in  the  medical  community.  The  degree  of  market  acceptance  of  these  pharmaceutical  products,  if
approved for commercial sale, will depend on a number of factors, including:

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The effectiveness of our approved drug candidates as compared to currently available products;
Patient willingness to adopt our approved drug candidates in place of current therapies;
Our ability to provide acceptable evidence of safety and efficacy;
Relative convenience and ease of administration;
The prevalence and severity of any adverse side effects;
Restrictions on use in combination with other products;
Availability of alternative treatments;
Pricing and cost-effectiveness assuming either competitive or potential premium pricing requirements, based on the profile of our drug candidates and target
markets;
Effectiveness of our or our partners’ sales and marketing strategy;
Our ability to obtain sufficient third-party coverage or reimbursement; and
Potential product liability claims.

Even if a potential product displays a favorable efficacy and safety profile in preclinical and clinical studies, market acceptance of the product will not be known until after it is
launched. Our efforts to educate the medical community and third-party payors on the benefits of the pharmaceutical products may require a significant amount of resources and
may never be successful. If these products do not achieve an adequate level of acceptance, we may not generate significant product revenue and may not become profitable.

The commercial potential of a pharmaceutical candidate in development is difficult to predict. If the market size for a new drug candidate or technology is significantly
smaller than we anticipate, it could significantly and negatively impact our revenue, results of operations and financial condition.

It is very difficult to estimate the commercial potential of pharmaceutical products due to important factors, such as safety and efficacy compared to other available technologies
or treatments, including changing standards of care, third-party payor reimbursement standards, patient and physician preferences, the availability of competitive alternatives
that may emerge either during the long drug development process or after commercial introduction, and the availability of generic versions of our successful drug candidates
following approval by government health authorities, based on the expiration of regulatory exclusivity or our inability to prevent generic versions from coming to market by
asserting  our  patents.  If  due  to  these  factors,  or  others,  the  market  potential  for  a  pharmaceutical  product  is  lower  than  we  anticipated,  it  could  significantly  and  negatively
impact  the  commercial  terms  of  any  collaboration  partnership  potential  for  such  pharmaceutical  product  or,  if  we  have  already  entered  into  a  collaboration  for  such
pharmaceutical product, the revenue potential from royalty and milestone payments could be significantly diminished which would negatively impact our business, financial
condition and results of operations.

35

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Failure to obtain or maintain adequate coverage and reimbursement for our drug candidates, if approved, could limit our ability to market those products and decrease our
ability to generate revenue.

The success of our drug candidates, if approved, depends on the availability of adequate coverage and reimbursement from third-party payors. In addition, because our drug
candidates represent new approaches to the treatment of certain diseases, we cannot be sure that coverage and reimbursement will be available for, or accurately estimate the
potential revenue from, our drug candidates or assure that coverage and reimbursement will be available for any product that we may develop.

Patients  who  are  provided  medical  treatment  for  their  conditions  generally  rely  on  third-party  payors  to  reimburse  all  or  part  of  the  costs  associated  with  their  treatment.
Adequate coverage and reimbursement from governmental healthcare programs, such as Medicare and Medicaid, and commercial payors are critical to new product acceptance.

Government authorities and third-party payors, such as private health insurers and health maintenance organizations, decide which drugs and treatments they will cover and the
amount of reimbursement. Coverage and reimbursement by a third-party payor may depend upon a number of factors, including the third-party payor’s determination that use of
a product is:

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A covered benefit under its health plan;
Safe, effective and medically necessary;
Appropriate for the specific patient;
Cost-effective; and
Neither experimental nor investigational.

In  the  United  States,  no  uniform  policy  of  coverage  and  reimbursement  for  products  exists  among  third-party  payors. As  a  result,  obtaining  coverage  and  reimbursement
approval of a product from a government or other third-party payor is a time-consuming and costly process that could require us to provide to each payor supporting scientific,
clinical and cost-effectiveness data for the use of our products on a payor-by-payor basis, with no assurance that coverage and adequate reimbursement will be obtained. Even if
we obtain coverage for a given product, the resulting reimbursement payment rates might not be adequate for us to achieve or sustain profitability or may require co-payments
that  patients  find  unacceptably  high.  Additionally,  third-party  payors  may  not  cover,  or  provide  adequate  reimbursement  for,  long-term  follow-up  evaluations  required
following  the  use  of  our  gene-modifying  products.  Patients  are  unlikely  to  use  our  drug  candidates  unless  coverage  is  provided  and  reimbursement  is  adequate  to  cover  a
significant  portion  of  the  cost  of  our  drug  candidates.  There  is  significant  uncertainty  related  to  insurance  coverage  and  reimbursement  of  newly  approved  products.  It  is
difficult to predict at this time what third-party payors will decide with respect to the coverage and reimbursement for our drug candidates.

Moreover, increasing efforts by governmental and third-party payors in the United States and abroad to cap or reduce healthcare costs may cause such organizations to limit
both coverage and the level of reimbursement for newly approved products and, as a result, they may not cover or provide adequate payment for our drug candidates. We expect
to  experience  pricing  pressures  in  connection  with  the  sale  of  any  of  our  drug  candidates  due  to  the  trend  toward  managed  healthcare,  the  increasing  influence  of  health
maintenance organizations, cost containment initiatives and additional legislative changes.

We intend to seek approval to market our drug candidates in both the United States and in select foreign jurisdictions. If we obtain approval in one or more foreign jurisdictions
for  our  drug  candidates,  we  will  be  subject  to  rules  and  regulations  in  those  jurisdictions.  In  some  foreign  countries,  the  pricing  of  pharmaceutical  products  is  subject  to
governmental  control  and  other  market  regulations  which  could  put  pressure  on  the  pricing  and  usage  of  our  drug  candidates.  In  these  countries,  pricing  negotiations  with
governmental authorities can take considerable time after obtaining marketing approval of a drug candidate. In addition, market acceptance and sales of our drug candidates will
depend significantly on the availability of adequate coverage and reimbursement from third-party payors for our drug candidates and may be affected by existing and future
health care reform measures. Failure to obtain or maintain adequate coverage and reimbursement for our drug candidates, if approved, could limit our ability to market those
products and decrease our ability to generate revenue.

36

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We may use our financial and human resources to pursue a particular research program or drug candidate and fail to capitalize on programs or drug candidates that may
be more profitable or for which there is a greater likelihood of success.

Because we have limited resources, we may forego or delay pursuit of opportunities with certain programs, drug candidates or for indications that later prove to have greater
commercial potential. Our resource allocation decisions may cause us to fail to capitalize on viable commercial products or profitable market opportunities. Our spending on
current and future research and development programs for drug candidates may not yield any commercially viable products. If we do not accurately evaluate the commercial
potential or target market for a particular drug candidate, we may relinquish valuable rights to that drug candidate through strategic collaboration, licensing or other royalty
arrangements  in  cases  in  which  it  would  have  been  more  advantageous  for  us  to  retain  sole  development  and  commercialization  rights  to  such  drug  candidate,  or  we  may
allocate internal resources to a drug candidate in a therapeutic area in which it would have been more advantageous to enter into a partnering arrangement. Failure to pursue
opportunities with greater commercial potential or relinquishing valuable rights to drug candidates may adversely impact our business, results of operations and prospects.

We may not be successful in our efforts to identify or discover additional pharmaceutical products.

The  success  of  our  business  depends  primarily  upon  our  ability  to  identify  and  develop  pharmaceutical  products.  Our  research  programs  may  fail  to  identify  potential
pharmaceutical products for clinical development for a number of reasons. Our research methodology may be unsuccessful in identifying potential pharmaceutical products or
our potential pharmaceutical products may be shown to have harmful side effects or may have other characteristics that may make the products unmarketable or unlikely to
receive marketing approval.

If any of these events occur, we may be forced to abandon our development efforts for a program or programs, which would have a material adverse effect on our business and
could potentially cause us to cease operations. Research programs to identify new pharmaceutical products require substantial technical, financial and human resources. We
may focus our efforts and resources on potential programs or pharmaceutical products that ultimately prove to be unsuccessful. If we are not successful in our efforts to identify
or discover additional pharmaceutical products, it could adversely affect our business, results of operations and prospects.

We may fail to obtain orphan drug designations from the FDA for our drug candidates, and even if we obtain such designations, we may be unable to maintain the benefits
associated with orphan drug designation, including the potential for market exclusivity.

Under the Orphan Drug Act, the FDA may grant orphan drug designation to a drug or biologic intended to treat a rare disease or condition, which is defined as one occurring in
a patient population of fewer than 200,000 in the United States, or a patient population greater than 200,000 in the United States where there is no reasonable expectation that
the cost of developing the drug or biologic will be recovered from sales in the United States. In the United States, orphan drug designation entitles a party to financial incentives
such as opportunities for grant funding towards clinical trial costs, tax advantages and user-fee waivers. In addition, if a product that has orphan drug designation subsequently
receives the first FDA approval for the disease for which it has such designation, the product is entitled to orphan drug exclusivity, which means that the FDA may not approve
any other applications, including a full NDA or BLA, to market the same drug or biologic for the same indication for seven years, except in limited circumstances, such as a
showing of clinical superiority to the product with orphan drug exclusivity or where the manufacturer is unable to assure sufficient product quantity.

37

 
 
 
 
 
 
 
 
 
 
 
 
 
OncoHist for AML and XBIO-101 for endometrial cancer have orphan designation in the U.S. While we have not obtained nor have we sought to obtain additional orphan
designations for any drug candidate, we believe our products and drug candidates could qualify for additional orphan drug designations for additional indications. We may seek
to obtain orphan drug designation for our drug candidates for any qualifying indications they may be approved for in the future. Even if we obtain such designations, we may
not  be  the  first  to  obtain  marketing  approval  of  our  drug  candidate  for  the  orphan-designated  indication  due  to  the  uncertainties  associated  with  developing  pharmaceutical
products. In addition, exclusive marketing rights in the United States may be limited if we seek approval for an indication broader than the orphan-designated indication, or may
be lost if the FDA later determines that the request for designation was materially defective or if the manufacturer is unable to assure sufficient quantities of the product to meet
the needs of patients with the rare disease or condition. Further, even if we obtain orphan drug exclusivity for a product, that exclusivity may not effectively protect the product
from  competition  because  different  drugs  with  different  active  moieties  can  be  approved  for  the  same  condition.  Even  after  an  orphan  product  is  approved,  the  FDA  can
subsequently approve the same drug with the same active moiety for the same condition if the FDA concludes that the later drug is safer, more effective or makes a major
contribution  to  patient  care.  Orphan  drug  designation  neither  shortens  the  development  time  or  regulatory  review  time  of  a  drug,  nor  gives  the  drug  any  advantage  in  the
regulatory review or approval process. In addition, even if we seek orphan drug designation for our drug candidates, we may never receive such designations.

The market opportunities for our drug candidates may be limited to those patients who are ineligible for or have failed prior treatments and may be small.

Cancer therapies are sometimes characterized as first line, second line or third line, and the FDA often approves new therapies initially only for third line use. When cancer is
detected  early  enough,  first  line  therapy  is  sometimes  adequate  to  cure  the  cancer  or  prolong  life  without  a  cure.  Whenever  first  line  therapy,  which  usually  consists  of
chemotherapy, hormone therapy, surgery or a combination of these, proves unsuccessful, second line therapy may be administered. Second line therapies often consist of more
chemotherapy, radiation, antibody drugs, tumor targeted small molecules or a combination of these. Third line therapies can include bone marrow transplantation, antibody and
small molecule targeted therapies, more invasive forms of surgery and new technologies. In markets with approved therapies, we expect to initially seek approval of our drug
candidates  as  a  later  stage  therapy  for  patients  who  have  failed  other  approved  treatments.  Subsequently,  for  those  drugs  that  prove  to  be  sufficiently  beneficial,  if  any,  we
would expect to seek approval as a second line therapy and potentially as a first line therapy, but there is no guarantee that our drug candidates, even if approved, would be
approved for second line or first line therapy. In addition, we may have to conduct additional clinical trials prior to gaining approval for second line or first line therapy.

Our projections of both the number of people who have the cancers we are targeting, as well as the subset of people with these cancers in a position to receive later stage therapy
and who have the potential to benefit from treatment with our drug candidates, are based on our beliefs and estimates. These estimates have been derived from a variety of
sources, including scientific literature, surveys of clinics, patient foundations or market research and may prove to be incorrect. Further, new studies may change the estimated
incidence or prevalence of these cancers. The number of patients may turn out to be lower than expected. In addition, the potentially addressable patient population for our drug
candidates may be limited or may not be amenable to treatment with our drug candidates. Even if we obtain significant market share for our drug candidates, we may never
achieve profitability without obtaining regulatory approval for additional indications, including use as a first or second line therapy, which may adversely affect our business
and results of operations.

Healthcare legislative reform measures may have a material adverse effect on our business and results of operations.

In both the United States and certain foreign jurisdictions, there have been a number of legislative and regulatory enactments in recent years that change the healthcare system
in ways that could impact our future ability to sell our drug candidates profitably.

38

 
 
 
 
 
 
 
 
 
 
 
 
Furthermore, there have been and continue to be a number of initiatives at the federal and state level that seek to reduce healthcare costs. Most significantly, in March 2010, the
Patient Protection and Affordable Health Care Act, as amended by the Health Care and Education Reconciliation Act (collectively, the “ACA”), was signed into law, which
includes  measures  that  significantly  change  the  way  healthcare  is  financed  by  both  governmental  and  private  insurers.  In  January  2017,  Congress  voted  to  adopt  a  budget
resolution for fiscal year 2017, or the Budget Resolution, that authorizes the implementation of legislation that would repeal portions of the ACA. In addition, on January 20,
2017, President Trump signed an Executive Order directing federal agencies with authorities and responsibilities under the ACA to waive, defer, grant exemptions from, or
delay  the  implementation  of  any  provision  of  the  ACA  that  would  impose  a  fiscal  or  regulatory  burden  on  states,  individuals,  healthcare  providers,  health  insurers,  or
manufacturers  of  pharmaceuticals  or  medical  devices.  Further,  on  October  12,  2017,  President  Trump  issued  another  executive  order  requiring  the  Secretaries  of  the
Departments of Health and Human Services (“HHS”), Labor, and the Treasury to consider proposing regulations or revising existing guidance to allow more employers to form
association health plans that would be allowed to provide coverage across state lines, increase the availability of short-term, limited duration health insurance plans, which are
generally  not  subject  to  the  requirements  of  the ACA,  and  increase  the  availability  and  permitted  use  of  health  reimbursement  arrangements.  On  October  13,  2017,  the
Department  of  Justice  announced  that  HHS  was  immediately  stopping  its  cost  sharing  reduction  payments  to  insurance  companies  based  on  the  determination  that  those
payments  had  not  been  appropriated  by  Congress.  Furthermore,  on  December  22,  2017,  President  Trump  signed  the  Tax  Cuts  and  Jobs Act  (the  “TCJA”)  into  law  that,  in
addition to overhauling the federal tax system, also, effective as of January 1, 2019, repeals the penalties associated with the individual mandate. In part, as a result of the repeal
of such penalties, there is litigation pending in various Federal jurisdictions challenging the validity of the ACA and such cases may ultimately be decided by the United States
Supreme Court. Congress or the President of the United States also could consider subsequent legislation or executive action to replace or eliminate elements of the ACA. We
will continue to evaluate the effect that the ACA and any future measures to modify, repeal or replace the ACA have on our business. We are not able to provide any assurance
that the continued healthcare reform debate will not result in legislation, regulation, litigation, or executive action by the President of the United States that is adverse to our
business.

Laws and other reform and cost containment measures that may be proposed and adopted in the future remain uncertain, but may result in additional reductions in Medicare and
other  healthcare  funding,  which  could  have  a  material  adverse  effect  on  our  future  customers  and  accordingly,  our  ability  to  generate  revenue,  attain  profitability,  or
commercialize our products.

Risks Related to Our Reliance on Third-Parties

If conflicts arise between us and our collaborators or strategic partners, these parties may act in their self-interest, which may limit our ability to implement our strategies.

If  conflicts  arise  between  our  corporate  or  academic  collaborators  or  strategic  partners  and  us,  the  other  party  may  act  in  its  self-interest,  which  may  limit  our  ability  to
implement our strategies. Some of our academic collaborators and strategic partners are conducting multiple product development efforts within each area that is the subject of
the collaboration with us. Our collaborators or strategic partners, however, may develop, either alone or with others, products in related fields that are competitive with the
products  or  potential  products  that  are  the  subject  of  these  collaborations.  Competing  products,  either  developed  by  the  collaborators  or  strategic  partners  or  to  which  the
collaborators or strategic partners have rights, may result in the withdrawal of partner support for our drug candidates.

Some  of  our  collaborators  or  strategic  partners  could  also  become  our  competitors  in  the  future.  Our  collaborators  or  strategic  partners  could  develop  competing  products,
preclude us from entering into collaborations with their competitors, fail to obtain timely regulatory approvals, terminate their agreements with us prematurely, or fail to devote
sufficient resources to the development and commercialization of products. Any of these developments could harm our product development efforts, which may adversely affect
our business, results of operations and prospects.

39

 
 
 
 
 
 
 
 
 
 
 
 
We expect to rely on third-parties to conduct, supervise and monitor our clinical studies, and if these third-parties perform in an unsatisfactory manner, it may harm our
business.

We expect to rely on CROs, clinical investigators and clinical study sites to ensure our clinical studies are conducted properly and on time. We will have limited influence over
the performance by CROs, clinical investigators and clinical study sites and we will control only certain aspects of our CROs’ activities. Nevertheless, we will be responsible for
ensuring that each of our clinical studies is conducted in accordance with the applicable protocol, legal, and regulatory requirements and scientific standards, and our reliance
on the CROs does not relieve us of our regulatory responsibilities.

We, our clinical investigators and our CROs are required to comply with the FDA’s GCPs for conducting, recording and reporting the results of clinical trials to assure that the
data and reported results are credible and accurate and that the rights, integrity and confidentiality of clinical trial participants are protected. The FDA enforces these GCPs
through periodic inspections of study sponsors, principal investigators and clinical trial sites. If we, our CROs or the clinical investigators fail to comply with applicable GCPs,
the clinical data generated in our clinical trials may be deemed unreliable and the FDA may require us to perform additional  clinical  trials  before  approving  any  marketing
applications. Upon inspection, the FDA may determine that our clinical trials did not comply with GCPs. In addition, our future clinical trials will require a sufficient number of
test subjects to evaluate the safety and efficacy of our drug candidates. Accordingly, if our CROs or clinical investigators fail to comply with these regulations or fail to recruit a
sufficient number of patients, we may be required to repeat such clinical trials, which would delay the regulatory approval process.

Our  CROs  are  not  our  employees,  and  we  are  therefore  unable  to  directly  monitor  whether  or  not  they  devote  sufficient  time  and  resources  to  our  clinical  and  nonclinical
programs, which must be conducted in accordance with GCPs and GLPs, respectively. These CROs may also have relationships with other commercial entities, including our
competitors,  for  whom  they  may  also  be  conducting  clinical  studies  or  other  drug  development  activities  that  could  harm  our  competitive  position.  If  our  CROs  do  not
successfully carry out their contractual duties or obligations, fail to meet expected deadlines, or if the quality or accuracy of the clinical data they obtain is compromised due to
the failure to adhere to our clinical protocols or regulatory requirements, or for any other reasons, our clinical studies may be extended, delayed or terminated, and we may not
be able to obtain regulatory approval for, or successfully commercialize our pharmaceutical products. As a result, our financial results and the commercial prospects for our
pharmaceutical products would be harmed, our costs could increase, and our ability to generate revenues could be delayed.

We may also rely on other third-parties to store and distribute our products for any clinical studies that we may conduct. Any performance failure on the part of our distributors
could  delay  clinical  development  or  marketing  approval  of  our  pharmaceutical  products  or  commercialization  of  our  products,  if  approved,  producing  additional  losses  and
depriving us of potential product revenue.

Our collaborators or strategic partners may decide to adopt alternative technologies or may be unable to develop commercially viable products with our technology, which
would negatively impact our revenues and our strategy to develop these products.

Our collaborators or strategic partners may adopt alternative technologies, which could decrease the marketability of our products. Additionally, because our current or future
collaborators or strategic partners are likely to be working on more than one development project, they could choose to shift their resources to projects other than those they are
working on with us. If they do so, this would delay our ability to test our technology and would delay or terminate the development of potential products based on our platforms.
Further, our collaborators and strategic partners may elect not to develop products arising out of our collaborative and strategic partnering arrangements or to devote sufficient
resources to the development, manufacturing, marketing or sale of these products. The failure to develop and commercialize a drug candidate pursuant to our agreements with
our current or future collaborator would prevent us from receiving future milestone and royalty payments which would negatively impact our revenues.

40

 
 
 
 
 
 
 
 
 
 
 
 
 
We may seek to establish additional collaborations and, if we are not able to establish them on commercially reasonable terms, we may have to alter our development and
commercialization plans.

Our drug candidate development programs and the potential commercialization of our drug candidates will require substantial additional cash to fund expenses. For some of our
drug candidates, we may decide to collaborate with additional pharmaceutical and biotechnology companies for the development and potential commercialization of those drug
candidates. For our XCART technology, we intend to seek to leverage the manufacturing expertise and capability of an academic collaborator during early development.

We  face  significant  competition  in  seeking  appropriate  collaborators.  Whether  we  reach  a  definitive  agreement  for  any  additional  collaborations  will  depend,  among  other
things, upon our assessment of the collaborator’s resources and expertise, the terms and conditions of the proposed collaboration and the proposed collaborator’s evaluation of a
number  of  factors.  Those  factors  may  include  the  design  or  results  of  clinical  trials,  the  likelihood  of  approval  by  FDA  or  similar  regulatory  authorities  outside  the  United
States, the potential market for the subject drug candidate, the costs and complexities of manufacturing and delivering such drug candidate to patients, the potential of competing
drugs, the existence of uncertainty with respect to our ownership of technology, which can exist if there is a challenge to such ownership without regard to the merits of the
challenge,  and  industry  and  market  conditions  generally.  The  collaborator  may  also  consider  alternative  drug  candidates  or  technologies  for  similar  indications  that  may  be
available to collaborate on and whether such a collaboration could be more attractive than the one with us for our drug candidate. The terms of any additional collaborations or
other arrangements that we may establish may not be favorable to us.

We  may  also  be  restricted  under  existing  collaboration  agreements  from  entering  into  future  agreements  on  certain  terms  with  potential  collaborators.  Collaborations  are
complex  and  time-consuming  to  negotiate  and  document.  In  addition,  there  have  been  a  significant  number  of  recent  business  combinations  among  large  pharmaceutical
companies that have resulted in a reduced number of potential future collaborators.

We may not be able to negotiate additional collaborations on a timely basis, including for early XCART development, on acceptable terms, or at all. If we are unable to do so,
we may have to curtail the development of the drug candidate for which we are seeking to collaborate, reduce or delay its development program or one or more of our other
development programs, delay its potential commercialization or reduce the scope of any sales or marketing activities, or increase our expenditures and undertake development
or commercialization activities at our own expense. If we elect to increase our expenditures to fund development or commercialization activities on our own, we may need to
obtain additional capital, which may not be available to us on acceptable terms or at all. If we do not have sufficient funds, we may not be able to further develop our drug
candidates or bring them to market and generate product revenue.

41

 
 
 
 
 
 
 
 
 
 
 
If we enter into one or more collaborations, we may be required to relinquish important rights to and control over the development of our drug candidates or otherwise be
subject to unfavorable terms.

Any future collaborations we enter into could subject us to a number of risks, including:

·

·

·

·
·

·
·

·

·

·

We  may  not  be  able  to  control  the  amount  and  timing  of  resources  that  our  collaborators  devote  to  the  development  or  commercialization  of  our  drug
candidates;
Collaborators may delay clinical trials, provide insufficient funding, terminate a clinical trial or abandon a drug candidate, repeat or conduct new clinical trials
or require a new version of a drug candidate for clinical testing;
Collaborators  may  not  pursue  further  development  and  commercialization  of  products  resulting  from  the  strategic  partnering  arrangement  or  may  elect  to
discontinue research and development programs;
Collaborators may not commit adequate resources to the marketing and distribution of our drug candidates, limiting our potential revenues from these products;
Disputes  may  arise  between  us  and  our  collaborators  that  result  in  the  delay  or  termination  of  the  research,  development  or  commercialization  of  our  drug
candidates or that result in costly litigation or arbitration that diverts management’s attention and consumes resources;
Collaborators may experience financial difficulties;
Collaborators may not properly maintain or defend our intellectual property rights or may use our proprietary information in a manner that could jeopardize or
invalidate our proprietary information or expose us to potential litigation;
Business combinations or significant changes in a collaborator’s business strategy may also adversely affect a collaborator’s willingness or ability to complete
its obligations under any arrangement;
Collaborators  could  decide  to  move  forward  with  a  competing  drug  candidate  developed  either  independently  or  in  collaboration  with  others,  including  our
competitors; and
Collaborators  could  terminate  the  arrangement  or  allow  it  to  expire,  which  would  delay  the  development  and  may  increase  the  cost  of  developing  our  drug
candidates.

Our  contract  manufacturers  are  subject  to  significant  regulation  with  respect  to  manufacturing  our  products.  The  manufacturing  facilities  on  which  we  rely  may  not
continue to meet regulatory requirements and have limited capacity.

We currently have relationships with a limited number of suppliers for the manufacturing of our pharmaceutical products. Each supplier may require licenses to manufacture
components if such processes are not owned by the supplier or in the public domain and we may be unable to transfer or sublicense the intellectual property rights we may have
with respect to such activities.

All entities involved in the preparation of pharmaceutical products for clinical studies or commercial sale, including our existing contract manufacturers for our drug candidates,
are subject to extensive regulation. Components of a finished pharmaceutical product approved for commercial sale or used in late-stage clinical studies must be manufactured
in  accordance  with  cGMP.  These  regulations  govern  manufacturing  processes  and  procedures  (including  record  keeping)  and  the  implementation  and  operation  of  quality
systems  to  control  and  assure  the  quality  of  investigational  products  and  products  approved  for  sale.  Poor  control  of  production  processes  can  lead  to  the  introduction  of
adventitious agents or other contaminants, or to inadvertent changes in the properties or stability of our pharmaceutical products that may not be detectable in final product
testing. Our contract manufacturers must supply all necessary documentation in support of an NDA or BLA on a timely basis and must adhere to the FDA’s GLP, and cGMP
regulations  enforced  by  the  FDA  through  its  facilities  inspection  program.  The  facilities  and  quality  systems  of  some  or  all  of  our  third-party  contractors  must  pass  a  pre-
approval inspection for compliance with the applicable regulations as a condition of regulatory approval of our pharmaceutical products or any of our other potential products.
In  addition,  the  regulatory  authorities  may,  at  any  time,  audit  or  inspect  a  manufacturing  facility  involved  with  the  preparation  of  our  pharmaceutical  products  or  our  other
potential products or the associated quality systems for compliance with the regulations applicable to the activities being conducted. If these facilities do not pass a pre-approval
plant inspection, FDA approval of the products will not be granted.

42

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The regulatory authorities also may, at any time following approval of a product for sale, audit the manufacturing facilities of our third-party contractors. If any such inspection
or  audit  identifies  a  failure  to  comply  with  applicable  regulations  or  if  a  violation  of  our  product  specifications  or  applicable  regulations  occurs  independent  of  such  an
inspection or audit, we, or the relevant regulatory authority, may require remedial measures that may be costly and/or time-consuming for us or a third-party to implement and
that  may  include  the  temporary  or  permanent  suspension  of  a  clinical  study  or  commercial  sales  or  the  temporary  or  permanent  closure  of  a  facility. Any  such  remedial
measures imposed upon third-parties with whom we contract could materially harm our business.

If our third-party manufacturers fail to maintain regulatory compliance, the FDA can impose regulatory sanctions including, among other things, refusal to approve a pending
application for a drug candidate, or revocation of a pre-existing approval. As a result, our business, financial condition and results of operations may be materially harmed.

Additionally, if supply from one approved manufacturer is interrupted, there could be a significant disruption in commercial supply. The number of manufacturers with the
necessary manufacturing capabilities is limited. In addition, an alternative manufacturer would need to be qualified through an NDA or BLA supplement which could result in
further  delay.  The  regulatory  agencies  may  also  require  additional  studies  if  a  new  manufacturer  is  relied  upon  for  commercial  production.  Switching  manufacturers  may
involve substantial costs and is likely to result in a delay in our desired clinical and commercial timelines, which could materially harm our business and results of operations.

These factors could cause the delay of clinical studies, regulatory submissions, required approvals or commercialization of our pharmaceutical products, and/or cause us to incur
higher costs and prevent us from commercializing our products successfully. Furthermore, if our suppliers fail to meet contractual requirements, and we are unable to secure one
or more replacement suppliers capable of production at a substantially equivalent cost, our clinical studies may be delayed or we could lose potential revenue, which could
materially harm our business and results of operations.

We have no manufacturing, sales, marketing or distribution capabilities, and we may have to invest a significant amount of resources to develop these capabilities.

We  have  no  internal  manufacturing  capabilities. As  a  result,  for  manufacturing  we  depend  on  third-party  manufacturers,  including  Kevelt,  Pharmsynthez  and  the  Serum
Institute, which in turn may rely upon third-parties to manufacture our products. Although our strategy is based on leveraging the ability of collaboration partners to develop and
manufacture  our  products  for  commercialization  in  the  pharmaceutical  marketplace,  we  will  be  dependent  on  collaborations  with  drug  development  and  manufacturing
collaborators. If we are not able to maintain existing collaborative arrangements or establish new arrangements on commercially acceptable terms, we would be required to
undertake  product  manufacturing  and  development  activities  at  our  own  expense.  This  would  increase  our  capital  requirements  or  require  us  to  limit  the  scope  of  our
development  activities.  Moreover,  we  have  limited  or  no  experience  in  conducting  full  scale  bioequivalence  or  other  clinical  studies,  preparing  and  submitting  regulatory
applications,  and  distributing  and  marketing  pharmaceutical  products  and  as  such  we  are  reliant  on  contract  parties  for  such  efforts.  We  may  not  be  able  to  enter  into
collaborations or hire consultants or external service providers to assist us in sales, marketing and distribution functions on acceptable financial terms or at all.

43

 
 
 
 
 
 
 
 
 
 
 
 
If  any  of  our  developmental  collaborators  breach  or  terminate  their  agreements  with  us  or  otherwise  fail  to  conduct  their  collaborative  activities  in  a  timely  manner,  the
preclinical and/or clinical development and/or commercialization of our pharmaceutical products will be delayed and we would be required to devote additional resources to
product development and commercialization or terminate certain development programs. Also, a license relationship may be terminated at the discretion of our collaborator, or
at the end of contract terms, and in some cases with only limited notice to us. The termination of the collaborative arrangement could have a material adverse effect on our
business, financial condition and results of operations. There also can be no assurance that disputes will not arise with respect to the ownership of rights to any technology
developed with third-parties. These and other possible disagreements with collaborators could lead to delays in the development or commercialization of our pharmaceutical
products or could result in litigation or arbitration, which could be time consuming and expensive and could have a material adverse effect on our business, financial condition
and results of operations. Even if we decide to perform clinical trials, sales, marketing and distribution functions ourselves, we could face a number of additional related risks,
including:

·
·

·

We may not be able to attract clinical investigators and build effective clinical trials, or a solid marketing department or sales force;
The cost of establishing an internal clinical trials program, marketing department or sales force may exceed our available financial resources and the revenue
generated by any of our current product candidates, if approved, or any other pharmaceutical products that we may develop, in-license or acquire; and
Our direct sales and marketing efforts may not be successful.

Any failure to perform such activities could have a material adverse effect on our business, financial condition and results of our operations.

Our reliance on third-parties requires us to share our trade secrets, which increases the possibility that a competitor will discover them or that our trade secrets will be
misappropriated or disclosed.

Because  we  rely  on  third-parties  to  manufacture  our  pharmaceutical  products,  and  because  we  collaborate  with  various  organizations  and  academic  institutions  on  the
development  of  our  pharmaceutical  products,  we  must,  at  times,  share  trade  secrets  with  them.  We  seek  to  protect  our  proprietary  technology  in  part  by  entering  into
confidentiality  agreements  and,  if  applicable,  material  transfer  agreements,  collaborative  research  agreements,  consulting  agreements  or  other  similar  agreements  with  our
collaborators, advisors, employees and consultants prior to beginning research or disclosing proprietary information. These agreements typically limit the rights of the third-
parties to use or disclose our confidential information, such as trade secrets. Despite the contractual provisions employed when working with third-parties, the need to share
trade secrets and other confidential information increases the risk that such trade secrets become known by our competitors, are inadvertently incorporated into the technology
of others, or are disclosed or used in violation of these agreements. Given that our proprietary position is based, in part, on our know-how and trade secrets, a competitor’s
discovery of our trade secrets or other unauthorized use or disclosure would impair our competitive position and may have a material adverse effect on our business.

In addition, these agreements typically restrict the ability of our collaborators, advisors, employees and consultants to publish data potentially relating to our trade secrets. Our
academic  collaborators  typically  have  rights  to  publish  data,  provided  that  we  are  notified  in  advance  and  may  delay  publication  for  a  specified  time  in  order  to  secure  our
intellectual property rights arising from the collaboration. In other cases, publication rights are controlled exclusively by us, although in some cases we may share these rights
with other parties. We may also conduct joint research and development programs that may require us to share trade secrets under the terms of our research and development
partnerships or similar agreements. Despite our efforts to protect our trade secrets, our competitors may discover our trade secrets, either through breach of these agreements,
independent  development  or  publication  of  information  including  our  trade  secrets  in  cases  where  we  do  not  have  proprietary  or  otherwise  protected  rights  at  the  time  of
publication. A competitor’s discovery of our trade secrets would impair our competitive position and have an adverse impact on our business.

44

 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
Risks Related to Our Intellectual Property

If we fail to adequately protect or enforce our intellectual property rights, we may be unable to operate effectively.

Our success and ability to compete are substantially dependent on our patents, proprietary formulations and trademarks. Although we believe that the patents and associated
trademarks and licenses are valid, there can be no assurance that they will not be challenged and subsequently invalidated and/or canceled. The invalidation or cancellation of
any one or all of the patents or trademarks would significantly damage our commercial prospects. Further, we may find it necessary to legally challenge parties infringing our
patents or trademarks or licensed trademarks to enforce our rights thereto. There can be no assurance that any of the patents would ultimately be held valid or that efforts to
defend any of the patents, trade secrets, know-how or other IP rights would be successful.

The patent positions of pharmaceutical and biotechnology companies, such as ours, are uncertain and involve complex legal and factual issues. We own numerous U.S. and
foreign patents and a number of pending patent applications that cover various aspects of our drug candidates and technologies. There can be no assurance that patents that have
been issued will be held valid and enforceable in a court of law. Even for patents that are held valid and enforceable, the legal process associated with obtaining such a judgment
is time consuming and costly. Additionally, issued patents can be subject to opposition or other proceedings that can result in the revocation of the patent or maintenance of the
patent  in  amended  form  (and  potentially  in  a  form  that  renders  the  patent  without  commercially  relevant  and/or  broad  coverage).  Further,  our  competitors  may  be  able  to
circumvent and otherwise design around our patents. Even if a patent is issued and enforceable, because development and commercialization of pharmaceutical products can be
subject to substantial delays, patents may expire early and provide only a short period of protection, if any, following the commercialization of a product encompassed by our
patents. We may have to participate in interference proceedings declared by the USPTO, which could result in a loss of the patent and/or substantial cost to us.

We have filed patent applications and plan to file additional patent applications covering various aspects of our drug candidates and technologies. There can be no assurance
that the patent applications for which we apply would actually be issued as patents, or do so with commercially relevant and/or broad coverage. The coverage claimed in a patent
application can be significantly reduced before the patent is issued. The scope of our claim coverage can be critical to our ability to enter into licensing transactions with third-
parties and our right to receive royalties from our collaboration partnerships. Since publication of discoveries in scientific or patent literature often lags behind the date of such
discoveries, we cannot be certain that we were the first inventor of inventions covered by our patents or patent applications. In addition, there is no guarantee that we will be the
first to file a patent application directed to an invention.

An adverse outcome in any judicial proceeding involving IP, including patents, could subject us to significant liabilities to third-parties, require disputed rights to be licensed
from or to third-parties or require us to cease using the technology in dispute. In those instances where we seek an IP license from another, we may not be able to obtain the
license on a commercially reasonable basis, if at all, thereby raising concerns on our ability to freely commercialize our technologies and/or products. It is also possible that we
or our licensors or licensees will fail to identify patentable aspects of inventions made in the course of development and commercialization activities before it is too late to
obtain patent protection on them. Moreover, in some circumstances, we may not have the right to control the preparation, filing and prosecution of patent applications, or to
maintain the patents, covering technology that we license from or license to third-parties and are reliant on our licensors or licensees. Therefore, these patents and applications
may not be prosecuted and enforced in a manner consistent with the best interests of our business. If our current or future licensors or licensees fail to establish, maintain or
protect such patents and other intellectual property rights, such rights may be reduced or eliminated. If our licensors or licensees are not fully cooperative or disagree with us as
to the prosecution, maintenance or enforcement of any patent rights, such patent rights could be compromised.

Failure to adequately protect or enforce our intellectual property rights could have a material adverse impact on our business, results of operations and prospects.

45

 
 
 
 
 
 
 
 
  
 
 
 
 
Issued patents covering our drug candidates could be found invalid or unenforceable if challenged in court.

If we or one of our licensing partners initiated legal proceedings against a third-party to enforce a patent covering one of our drug candidates, the defendant could counterclaim
that  the  patent  covering  our  drug  candidate  is  invalid  and/or  unenforceable.  In  patent  litigation  in  the  United  States,  defendant  counterclaims  alleging  invalidity  and/or
unenforceability  are  commonplace.  Grounds  for  a  validity  challenge  could  be  an  alleged  failure  to  meet  any  of  several  statutory  requirements,  including  lack  of  novelty,
obviousness  or  non-enablement.  Grounds  for  an  unenforceability  assertion  could  be  an  allegation  that  someone  connected  with  prosecution  of  the  patent  withheld  relevant
information from the USPTO, or made a misleading statement, during prosecution. Third-parties may also raise similar claims before administrative bodies in the United States
or  abroad,  even  outside  the  context  of  litigation.  Such  mechanisms  include  re-examination,  post  grant  review,  and  equivalent  proceedings  in  foreign  jurisdictions  (e.g.,
opposition proceedings). Such proceedings could result in revocation or amendment to our patents in such a way that they no longer cover our drug candidates. The outcome
following  legal  assertions  of  invalidity  and  unenforceability  is  unpredictable.  With  respect  to  the  validity  question,  for  example,  we  cannot  be  certain  that  there  is  no
invalidating  prior  art,  of  which  we  and  the  patent  examiner  were  unaware  during  prosecution.  If  a  defendant  were  to  prevail  on  a  legal  assertion  of  invalidity  and/or
unenforceability, we would lose at least part, and perhaps all, of the patent protection on our drug candidates. Such a loss of patent protection would have a material adverse
impact on our business.

We may not be able to protect our intellectual property rights throughout the world.

Filing, prosecuting and defending patents on drug candidates in all countries throughout the world would be prohibitively expensive, and our intellectual property rights in some
countries outside the United States can be less extensive than those in the United States. In addition, the laws of some foreign countries do not protect intellectual property
rights to the same extent as federal and state laws in the United States. Consequently, we may not be able to prevent third-parties from practicing our inventions in all countries
outside  the  United  States,  or  from  selling  or  importing  products  made  using  our  inventions  in  and  into  the  United  States  or  other  jurisdictions.  Competitors  may  use  our
inventions in jurisdictions where we have not obtained patent protection to develop their own products and further, may export otherwise infringing products to territories where
we have patent protection, but enforcement is not as strong as that in the United States. These products may compete with our products and our patents or other intellectual
property rights may not be effective or sufficient to prevent them from competing.

Many companies have encountered significant problems in protecting and defending intellectual property rights in foreign jurisdictions. The legal systems of certain countries,
particularly  certain  developing  countries,  do  not  favor  the  enforcement  of  patents,  trade  secrets  and  other  intellectual  property  protection,  particularly  those  relating  to
biotechnology products, which could make it difficult for us to stop the infringement of our patents or marketing of competing products in violation of our proprietary rights
generally.  Proceedings  to  enforce  our  patent  rights  in  foreign  jurisdictions  could  result  in  substantial  costs  and  divert  our  efforts  and  attention  from  other  aspects  of  our
business, could put our patents at risk of being invalidated or interpreted narrowly and our patent applications at risk of not issuing and could provoke third-parties to assert
claims against us. We may not prevail in any lawsuits that we initiate and the damages or other remedies awarded, if any, may not be commercially meaningful. Accordingly,
our efforts to enforce our intellectual property rights around the world may be inadequate to obtain a significant commercial advantage from the intellectual property that we
develop or license.

Failure to adequately protect our intellectual property rights throughout the world could have a material adverse impact on our business, results of operations and prospects.

46

 
 
 
 
 
 
 
  
 
 
 
 
If we infringe on the intellectual property rights of others, our business and profitability may be adversely affected.

Our commercial success will also depend, in part, on us and our collaborative partners not infringing on the patents or proprietary rights of others. There can be no assurance
that the technologies and products used or developed by our collaborative partners and marketed and sold by us will not infringe such rights. If such infringement occurs and
neither we nor our collaborative partner is able to obtain a license from the relevant third-party, we will not be able to continue the development, manufacture, use, or sale of
any such infringing technology or product. There can be no assurance that necessary licenses to third-party technology will be available at all, or on commercially reasonable
terms.  In  some  cases,  litigation  or  other  proceedings  may  be  necessary  to  defend  against  or  assert  claims  of  infringement  or  to  determine  the  scope  and  validity  of  the
proprietary rights of third-parties. Any potential litigation could result in substantial costs to, and diversion of, our resources and could have a material and adverse impact on
us. An adverse outcome in any such litigation or proceeding could subject us to significant liabilities, require us to cease using the subject technology or require us to license the
subject technology from the third-party, all of which could have a material adverse effect on our business.

If we fail to comply with our obligations in the agreements under which we license intellectual property rights from third-parties or otherwise experience disruptions to our
business relationships with our licensors, we could lose license rights that are important to our business.

We are a party to a number of intellectual property license agreements that are important to our business and we expect to enter into additional license agreements in the future.
Our existing license agreements impose, and we expect that future license agreements will impose, various diligence, milestone payment, royalty and other obligations on us. If
we fail to comply with our obligations under these agreements, or we are subject to a bankruptcy, the licensor may have the right to terminate the license, in which event we
would not be able to market products covered by the license.

We may need to obtain licenses from third-parties to advance our research, and we have done so from time to time. We may fail to obtain any of these licenses at a reasonable
cost or on reasonable terms, if at all. In that event, we may be required to expend significant time and resources to develop or license replacement technology. If we are unable
to do so, we may be unable to develop the affected drug candidates, which could harm our business significantly. We cannot provide any assurances that third-party patents do
not exist which might be enforced against our current drug candidates or future products, resulting in either an injunction prohibiting the sales, or, with respect to the sales, an
obligation on our part to pay royalties and/or other forms of compensation to third-parties.

In many cases, patent prosecution of our licensed technology is controlled solely by the licensor. If our licensors fail to obtain and maintain patent or other protection for the
proprietary intellectual property we license from them, we could lose our rights to the intellectual property or our exclusivity with respect to those rights, and our competitors
could market competing products using the intellectual property. In certain cases, we control the prosecution of patents resulting from licensed technology. In the event we
breach any of our obligations related to such prosecution, we may incur significant liability to our licensing partners. Licensing of intellectual property is of critical importance
to  our  business  and  involves  complex  legal,  business  and  scientific  issues  and  is  complicated  by  the  rapid  pace  of  scientific  discovery  in  our  industry.  Disputes  may  arise
regarding intellectual property subject to a licensing agreement, including:

·
·
·
·
·
·

The scope of rights granted under the license agreement and other interpretation-related issues;
The extent to which our technology and processes infringe on intellectual property of the licensor that is not subject to the licensing agreement;
The sublicensing of patent and other rights under our collaborative development relationships;
Our diligence obligations under the license agreement and what activities satisfy those diligence obligations;
The ownership of inventions and know-how resulting from the joint creation or use of intellectual property by our licensors and us and our partners; and
The priority of invention of patented technology.

If disputes over intellectual property that we have licensed prevent or impair our ability to maintain our current licensing arrangements on acceptable terms, we may be unable
to successfully develop and commercialize the affected drug candidates, which could have a material adverse effect on our business.

47

 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We may be involved in lawsuits to protect or enforce our patents or the patents of our licensors, which could be expensive, time-consuming and unsuccessful.

Competitors may infringe our patents or the patents of our licensors. To counter infringement or unauthorized use, we may be required to file infringement claims, which can be
expensive and time-consuming. In addition, in an infringement proceeding, a court may decide that a patent of ours or our licensors is not valid, is unenforceable and/or is not
infringed, or may refuse to stop the other party from using the technology at issue on the grounds that our patents do not cover the technology in question. An adverse result in
any litigation or defense proceedings could put one or more of our patents at risk of being invalidated or interpreted narrowly and could put our patent applications at risk of not
issuing.

Interference proceedings provoked by third-parties or brought by us may be necessary to determine the priority of inventions with respect to our patents or patent applications or
those of our licensors. An unfavorable outcome could require us to cease using the related technology or to attempt to license rights to it from the prevailing party. Our business
could be harmed if the prevailing party does not offer us a license on commercially reasonable terms. Our defense of litigation or interference proceedings may fail and, even if
successful, may result in substantial costs and distract our management and other employees. We may not be able to prevent, alone or with our licensors, misappropriation of
our intellectual property rights, particularly in countries where the laws may not protect those rights as fully as in the United States.

Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of our confidential information
could be compromised by disclosure during this type of litigation. There could also be public announcements of the results of hearings, motions or other interim proceedings or
developments. If securities analysts or investors perceive these results to be negative, it could have a material adverse effect on the price of our Common Stock.

Changes in U.S. patent law could diminish the value of patents in general, thereby impairing our ability to protect our products.

As is the case with other biopharmaceutical companies, our success is heavily dependent on intellectual property, particularly patents. Obtaining and enforcing patents in the
biotechnology industry involve both technological and legal complexity and is, therefore, costly, time-consuming and inherently uncertain. In addition, the United States has
enacted  and  is  expected  to  continue  to  implement  wide-ranging  patent  reform  legislation.  Further,  certain  U.S.  Supreme  Court  rulings  have  narrowed  the  scope  of  patent
protection available in certain circumstances and/or weakened the rights of patent owners in certain situations. In addition to increasing uncertainty with regard to our ability to
obtain patents in the future, this combination of events has created uncertainty with respect to the value of patents, once obtained. Depending on decisions by the U.S. Congress,
the federal courts, and the USPTO, the laws and regulations governing patents could change in unpredictable ways that would weaken our ability to obtain new patents or to
enforce our existing patents and patents that we might obtain in the future.

Patent reform legislation could increase the uncertainties and costs surrounding the prosecution of our and our licensors’ patent applications and the enforcement or defense of
our or our licensors’ issued patents. Provisions of the Leahy-Smith America Invents Act (the “Leahy-Smith Act”), adopted in September 2011, made a number of significant
changes  to  U.S.  patent  law,  the  effects  of  which  are  still  unfolding.  The  Leahy-Smith Act  and  its  implementation,  in  addition  to  any  new  regulation,  could  increase  the
uncertainties and costs surrounding the prosecution of our patent applications and the enforcement or defense of our issued patents, all of which could have a material adverse
effect on our business and financial condition.

48

 
 
 
 
 
 
 
 
 
 
 
 
 
We may be subject to claims that our employees, consultants or independent contractors have wrongfully used or disclosed confidential information of third-parties or that
our employees have wrongfully used or disclosed alleged trade secrets of their former employers.

We employ individuals who were previously employed at universities or other biotechnology or pharmaceutical companies, including our competitors or potential competitors.
We may be subject to claims that we or our employees, consultants or independent contractors have inadvertently or otherwise used or disclosed intellectual property, including
trade secrets or other proprietary information, of any of our employee’s former employers or other third-parties. Litigation may be necessary to defend against these claims. If
we fail in defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights or personnel, which could adversely impact our
business. Even if we are successful in defending against such claims, litigation could result in substantial costs and be a distraction to management and other employees.

We may be subject to claims challenging the inventorship or ownership of our patents and other intellectual property.

We may also be subject to claims that former employees, collaborators or other third-parties have an ownership interest in our patents or other intellectual property. We may
have in the future ownership disputes arising, for example, from conflicting obligations of consultants or others who are involved in developing our drug candidates. Litigation
may  be  necessary  to  defend  against  these  and  other  claims  challenging  inventorship  or  ownership.  If  we  fail  in  defending  any  such  claims,  in  addition  to  paying  monetary
damages,  we  may  lose  valuable  intellectual  property  rights,  such  as  exclusive  ownership  of,  or  right  to  use,  valuable  intellectual  property.  Such  an  outcome  could  have  a
material  adverse  effect  on  our  business.  Even  if  we  are  successful  in  defending  against  such  claims,  litigation  could  result  in  substantial  costs  and  be  a  distraction  to
management and other employees.

Our inability to protect our confidential information and trade secrets would harm our business and competitive position.

In  addition  to  seeking  patents  for  some  of  our  technology  and  products,  we  also  rely  on  trade  secrets,  including  unpatented  know-how,  technology  and  other  proprietary
information, to maintain our competitive position. We seek to protect these trade secrets, in part, by entering into non-disclosure and confidentiality agreements with parties who
have access to them, such as our employees, corporate collaborators, outside scientific collaborators, contract manufacturers, consultants, advisors and other third-parties. We
also enter into confidentiality and invention or patent assignment agreements with our employees and consultants. Any of these parties may breach the agreements and disclose
our proprietary information, including our trade secrets, and we may not be able to obtain adequate remedies for such breaches. Enforcing a claim that a party illegally disclosed
or misappropriated a trade secret is difficult, expensive and time-consuming, and the outcome is unpredictable. In addition, some courts both within and outside the United
States may be less willing or unwilling to protect trade secrets. If a competitor lawfully obtained or independently developed any of our trade secrets, we would have no right to
prevent such competitor from using that technology or information to compete with us, which could harm our competitive position and our business.

Obtaining and maintaining our patent protection depends on compliance with various procedural, document submission, fee payment and other requirements imposed by
governmental patent agencies, and our patent protection could be reduced or eliminated for non-compliance with these requirements.

Periodic  maintenance  fees,  renewal  fees,  annuity  fees  and  various  other  governmental  fees  on  patents  and/or  applications  will  be  due  to  be  paid  to  the  USPTO  and  various
governmental patent agencies outside of the United States in several stages over the lifetime of the patents and/or applications. The USPTO and various non-U.S. governmental
patent agencies require compliance with a number of procedural, documentary, fee payment and other similar provisions during the patent application process. Non-compliance
may result in abandonment or lapse of the patent or patent application, resulting in partial or complete loss of patent rights in the relevant jurisdiction. In such an event, our
competitors might be able to enter the market and this circumstance would have a material adverse effect on our business.

49

 
 
 
 
 
   
 
 
 
 
 
 
 
 
Risks Related to Our Business Operations

We operate in an extremely competitive environment and there can be no assurances that competing technologies would not harm our business development.

We are engaged in a rapidly evolving field. Competition from numerous pharmaceutical companies is intense and expected to increase. The large and rapidly growing market
for  oncology  treatments  is  likely  to  attract  new  entrants.  Numerous  biotechnology  and  pharmaceutical  companies  are  focused  on  developing  cancer  treatments  and  I-O
technologies  including  CAR  T.  Many,  if  not  all,  of  these  companies  have  greater  financial  and  other  resources  and  development  capabilities  than  we  do.  Many  of  our
competitors also have greater collective experience in undertaking preclinical and clinical testing of products, obtaining regulatory approvals and manufacturing and marketing
prescription pharmaceutical products. There can be no assurance that our under-development drug candidates will be more effective or achieve greater market acceptance than
competitive products, or that our competitors will not succeed in developing products and technologies that are more effective than those being developed by us or that would
render our products and technologies less competitive or obsolete. Additionally, there can be no assurance that the development by others of new or improved drugs will not
make our pharmaceutical products superfluous or obsolete.

We  are  a  party  to  collaboration  agreements  and  other  significant  agreements  which  contain  complex  commercial  terms  that  could  result  in  disputes,  litigation  or
indemnification liability that could adversely affect our business, results of operations and financial condition.

We  currently  derive,  and  expect  to  derive  in  the  foreseeable  future,  all  or  much  of  our  revenue  from  collaboration  agreements  with  biotechnology  and  pharmaceutical
companies. These collaboration agreements contain complex commercial terms, including:

·

·

·

·
·

·

Clinical development and commercialization obligations that are based on certain commercial reasonableness performance standards that can often be difficult
to enforce if disputes arise as to adequacy of our partner’s performance;
Research  and  development  performance  and  reimbursement  obligations  for  our  personnel  and  other  resources  allocated  to  partnered  drug  candidate
development programs;
Clinical  and  commercial  manufacturing  agreements,  some  of  which  are  priced  on  an  actual  cost  basis  for  products  supplied  by  us  to  our  partners  with
complicated cost allocation formulas and methodologies;
Intellectual property ownership allocation between us and our partners for improvements and new inventions developed during the course of the collaboration;
Royalties on drug sales based on a number of complex variables, including net sales calculations, geography, scope of patent claim coverage, patent life, generic
competitors, bundled pricing and other factors; and
Indemnity obligations for intellectual property infringement, product liability and certain other claims.

From time to time, we have informal dispute resolution discussions with third-parties regarding the appropriate interpretation of the complex commercial terms contained in our
agreements. One or more disputes may arise or escalate in the future regarding our collaboration agreements, transaction documents, or third-party license agreements that may
ultimately result in costly litigation and unfavorable interpretation of contract terms, which would have a material adverse effect on our business, financial condition and results
of operations.

50

 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Governments may impose price controls, which may adversely affect our future profitability.

We intend to seek approval to market our drug candidates in both the United States and in foreign jurisdictions. In some foreign countries and jurisdictions, particularly in the
European Union, the pricing of prescription pharmaceuticals is subject to governmental control. In these countries, pricing negotiations with governmental authorities can take
considerable time after the receipt of marketing approval for a drug candidate. To obtain reimbursement or pricing approval in some countries, we may be required to conduct
clinical trials to compare the cost effectiveness of our drug candidates to other available therapies, which is time consuming and costly. If reimbursement of our future products
is unavailable or limited in scope or amount, or if pricing is set at unsatisfactory levels, we may be unable to achieve or sustain profitability.

Write-offs related to the impairments of our long-lived assets, including goodwill and indefinite-lived intangible assets, and other non-cash charges such as share-based
payments may adversely impact our results of operations.

We  may  incur  significant  non-cash  charges  related  to  impairments  of  our  long-lived  assets,  including  Goodwill  and  Indefinite-lived  intangible  assets.  We  are  required  to
perform periodic impairment reviews of our long-lived assets at least annually. To the extent future reviews conclude that the expected future cash flows generated from our
business activities are not sufficient to recover the carrying value of these assets, we will be required to measure and record an impairment charge to write-down these assets to
their realizable values and those impairment charges could be equal to the entire carrying value. During the third quarter of 2019, we recorded an impairment charge for the full
carrying value related to our Goodwill due to a significant decline in our stock price during the period.

We  completed  our  last  annual  review  during  the  fourth  quarter  of  2019  and  determined  that  indefinite-lived  intangible  assets  were  not  impaired  as  of  December  31,  2019.
However, there can be no assurance that upon completion of subsequent reviews a material impairment charge will not be recorded. If future periodic reviews determine that
our assets are impaired and a write-down is required, it will adversely impact our operating results. In addition, we record non-cash charges related to share-based expense,
which could fluctuate materially as the Company expects to continue to issue share-based payments awards.

Potential new accounting standards or legislative actions may adversely impact our future financial position or results of operations.

Future  changes  in  financial  accounting  standards  may  cause  adverse,  unexpected  fluctuations  in  the  timing  of  the  recognition  of  revenues  or  expenses,  and  may  affect  our
financial position or results of operations. New standards may occur in the future and may cause us to be required to make changes in our accounting policies. Compliance with
changing regulation of corporate governance and public disclosure may result in additional expenses. Changing laws, regulations and standards relating to corporate governance
and public disclosure, including the Sarbanes-Oxley Act of 2002, or the Sarbanes-Oxley Act, new SEC regulations, Public Company Accounting Oversight Board, or PCAOB,
standards and NASDAQ rules, are creating uncertainty for companies such as ours and insurance, accounting and auditing costs are high as a result of this uncertainty and other
factors.

We have limited capital resources and currently have only one full time employee in our finance department. We rely on outside consultants to supplement our internal expertise
and are committed to maintaining high standards of corporate governance and public disclosure. As a result, we intend to invest all reasonably necessary resources to comply
with  evolving  standards,  and  this  investment  may  result  in  increased  general  and  administrative  expenses  and  a  diversion  of  management  time  and  attention  from  revenue-
generating activities to compliance activities.

51

 
 
 
 
 
 
  
 
 
 
 
 
 
 
Varying interpretations of existing standards and rules have occurred with frequency and may cause us to have to restate previously reported result of operations.

Varying interpretations of existing standards of accounting policies or accounting treatments of existing transactions may cause us to have to restate previously reported result of
operations.

Tax reform may significantly affect the Company and its stockholders.

Due  to  the  potential  for  changes  to  tax  laws  and  regulations  or  changes  to  the  interpretation  thereof,  the  ambiguity  of  tax  laws  and  regulations,  the  subjectivity  of  factual
interpretations  and  other  factors,  our  estimates  of  effective  tax  rate  and  income  tax  assets  and  liabilities  may  be  incorrect  and  our  financial  statements  could  be  adversely
affected. The impact of these factors referenced in the first sentence of this paragraph may be substantially different from period-to-period.

In addition, the amount of income taxes we pay is subject to ongoing audits by U.S. federal, state and local tax authorities and by non-U.S. tax authorities. If audits result in
payments  or  assessments  different  from  our  reserves,  our  future  results  may  include  unfavorable  adjustments  to  our  tax  liabilities  and  our  financial  statements  could  be
adversely affected. Any further significant changes to the tax system in the United States or in other jurisdictions (including changes in the taxation of international income as
further described below) could adversely affect our financial statements.

Our  ability  to  use  potential  future  operating  losses  and  our  federal  and  state  NOL  carryforwards  to  offset  taxable  income  from  revenue  generated  from  operations  or
corporate collaborations could be limited.

The  use  of  our  NOL  carryforwards  may  have  limitations  resulting  from  certain  future  ownership  changes  or  other  factors  under  the  Code  and  other  taxing  authorities.  The
TCJA changed both the federal deferred tax value of the NOL carryforwards and the rules of utilization of federal NOL carryforwards. The TCJA lowered the corporate tax rate
from  35%  to  21%  effective  for  our  2018  fiscal  year.  For  NOL  carryforwards  generated  in  years  prior  to  2018,  there  is  no  annual  limitation  on  the  utilization  and  the
carryforward period remains at 20 years. However, NOL carryforwards generated in years after 2017 will only be available to offset 80% of future taxable income in any single
year but will not expire.

If our NOL carryforwards are limited, and we have taxable income which exceeds the available NOL carryforwards for that period, we would incur an income tax liability even
though NOL carryforwards may be available in future years prior to their expiration. Any such income tax liability may adversely affect our future cash flow, financial position
and financial results.

52

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Our  future  success  depends  on  our  ability  to  retain  principal  members  of  our  executive  team,  consultants  and  advisors  and  to  attract,  retain  and  motivate  qualified
personnel.

We  are  highly  dependent  on  principal  members  of  our  executive  team,  the  loss  of  whose  services  may  adversely  impact  the  achievement  of  our  objectives.  Recruiting  and
retaining other qualified employees, consultants and advisors for our business, including scientific and technical personnel, will also be critical to our success. There is currently
a shortage of skilled executives in our industry, which is likely to continue. As a result, competition for skilled personnel is intense and the turnover rate can be high. We may
not be able to attract and retain personnel on acceptable terms given the competition among numerous pharmaceutical and biotechnology companies for individuals with similar
skill sets. In addition, failure to succeed in preclinical or clinical studies may make it more challenging to recruit and retain qualified personnel. The inability to recruit or loss of
the services of any executive, consultant or advisor may impede the progress of our research and development objectives.

We will need to expand our organization and we may experience difficulties in managing this growth, which could disrupt our operations.

As of December 31, 2019, we had four full-time employees. As we mature, we may need to expand our full-time employee base and to hire more consultants and contractors.
Our management may need to divert a disproportionate amount of its attention away from our day-to-day activities and devote a substantial amount of time to managing these
growth activities. We may not be able to effectively manage the expansion of our operations, which may result in weaknesses in our infrastructure, operational mistakes, loss of
business opportunities, loss of employees and reduced productivity among remaining employees, all of which may have a material adverse effect on our business, results of
operations and prospects. Any future growth could require significant capital expenditures and may divert financial resources from other projects, such as the development of
additional drug candidates. If our management is unable to effectively manage our growth, our expenses may increase more than expected, our ability to generate and/or grow
revenues could be reduced, and we may not be able to implement our business strategy. Our future financial performance and our ability to commercialize drug candidates and
compete effectively will depend, in part, on our ability to effectively manage any future growth.

Our  employees,  principal  investigators,  consultants  and  commercial  partners  may  engage  in  misconduct  or  other  improper  activities,  including  non-compliance  with
regulatory standards and requirements and insider trading.

We are exposed to the risk of fraud or other misconduct by our employees, principal investigators, consultants and commercial partners. Misconduct by these parties could
include intentional failures to comply with the regulations of the FDA and non-U.S. regulators, provide accurate information to the FDA and non-U.S. regulators, comply with
healthcare fraud and  abuse  laws  and  regulations  in  the  United  States  and  abroad,  report  financial  information  or  data  accurately  or  disclose  unauthorized  activities  to  us.  In
particular, sales, marketing and business arrangements in the healthcare industry are subject to extensive laws and regulations intended to prevent fraud, misconduct, kickbacks,
self-dealing and other abusive practices. These laws and regulations may restrict or prohibit a wide range of pricing, discounting, marketing and promotion, sales commission,
customer incentive programs and other business arrangements. Such misconduct could also involve the improper use of information obtained in the course of clinical studies,
which  could  result  in  regulatory  sanctions  and  cause  serious  harm  to  our  reputation  or  could  cause  regulatory  agencies  not  to  approve  our  drug  candidates.  It  is  not  always
possible to identify and deter employee misconduct, and the precautions we take to detect and prevent this activity may not be effective in controlling unknown or unmanaged
risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to comply with these laws or regulations. 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, including
the imposition of significant fines or other sanctions.

53

 
 
 
 
 
  
 
 
 
 
 
 
We face potential product liability, and, if successful claims are brought against us, we may incur substantial liability and costs. If the use of our drug candidates harms
patients, or is  perceived  to  harm  patients  even  when  such  harm  is  unrelated  to  our  drug  candidates,  our  regulatory  approvals  could  be  revoked  or  otherwise  negatively
impacted and we could be subject to costly and damaging product liability claims.

The use of our drug candidates in clinical studies and the sale of any products for which we obtain marketing approval exposes us to the risk of product liability claims. Product
liability claims might be brought against us by consumers, healthcare providers, pharmaceutical companies or others selling or otherwise coming into contact with our products.
There is a risk that our drug candidates may induce adverse events. If we cannot successfully defend against product liability claims, we could incur substantial liability and
costs. In addition, regardless of merit or eventual outcome, product liability claims may result in:

·
·
·
·
·
·
·

Impairment of our business reputation;
Withdrawal of clinical study participants;
Costs due to related litigation;
Distraction of management’s attention from our primary business;
Substantial monetary awards to patients or other claimants;
The inability to commercialize our drug candidates; and
Decreased demand for our drug candidates, if approved for commercial sale,

all of which may have a material adverse effect on our business, results of operations and prospects.

If we fail to comply with environmental, health and safety laws and regulations, we could become subject to fines or penalties or incur costs that could have a material
adverse effect on the success of our business.

We are subject to numerous environmental, health and safety laws and regulations, including those governing laboratory procedures and the handling, use, storage, treatment
and  disposal  of  hazardous  materials  and  wastes.  Our  operations  involve  the  use  of  hazardous  and  flammable  materials,  including  chemicals  and  biological  materials.  Our
operations  also  produce  hazardous  waste  products.  We  generally  contract  with  third-parties  for  the  disposal  of  these  materials  and  wastes.  We  cannot  eliminate  the  risk  of
contamination or injury from these materials. In the event of contamination or injury resulting from our use of hazardous materials, we could be held liable for any resulting
damages, and any liability could exceed our resources. We also could incur significant costs associated with civil or criminal fines and penalties.

The  workers’  compensation  insurance  we  maintain  to  cover  us  for  costs  and  expenses  we  may  incur  due  to  injuries  to  our  employees  resulting  from  the  use  of  hazardous
materials  or  other  work-related  injuries  may  not  provide  adequate  coverage  against  potential  liabilities.  In  addition,  we  may  incur  substantial  costs  in  order  to  comply  with
current  or  future  environmental,  health  and  safety  laws  and  regulations.  These  current  or  future  laws  and  regulations  may  impair  our  research,  development  or  production
efforts. Failure to comply with these laws and regulations also may result in substantial fines, penalties or other sanctions, which may have a material adverse effect on our
business and results of operations.

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

We are subject to the periodic reporting requirements of the Exchange Act. Any disclosure controls and procedures or internal controls and procedures, no matter how well-
conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. These inherent limitations include the realities
that  judgments  in  decision-making  can  be  faulty,  and  that  breakdowns  can  occur  because  of  simple  error  or  mistake. Additionally,  controls  can  be  circumvented  by  the
individual acts of some persons, by collusion of two or more people, or by an unauthorized override of the controls. Accordingly, because of the inherent limitations in our
control system, misstatements due to error or fraud may occur and not be detected, which may have material adverse effect on our business and results of operations.

54

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
Failure in our information technology systems, including by cybersecurity attacks or other data security incidents, could significantly disrupt our operations.

Our operations depend, in part, on the continued performance of our information technology systems. Our information technology systems are potentially vulnerable to physical
or electronic break-ins, computer viruses and similar disruptions. Failure of our information technology systems could adversely affect our business, profitability and financial
condition.

A  successful  cybersecurity  attack  or  other  data  security  incident  could  result  in  the  misappropriation  and/or  loss  of  confidential  or  personal  information,  create  system
interruptions, or deploy malicious software that attacks our systems. It is possible that a cybersecurity attack might not be noticed for some period of time. The occurrence of a
cybersecurity attack or incident could result in business interruptions from the disruption of our information technology systems, or negative publicity resulting in reputational
damage  with  our  clinical  trial  participants,  customers,  stockholders  and  other  stakeholders  and/or  increased  costs  to  prevent,  respond  to  or  mitigate  cybersecurity  events.  In
addition, the unauthorized dissemination of sensitive personal information or proprietary or confidential information could expose us or other third-parties to regulatory fines or
penalties, litigation and potential liability, or otherwise harm our business.

 Risks Related to Our Common Stock

An active, liquid and orderly market for our Common Stock or Purchase Warrants may not develop.

Our Common Stock and Purchase Warrants trade on NASDAQ. An active trading market for our Common Stock or Purchase Warrants may never develop or be sustained. If
an  active  market  for  our  Common  Stock  or  Purchase  Warrants  does  not  continue  to  develop  or  is  not  sustained,  it  may  be  difficult  for  investors  to  sell  shares  or  Purchase
Warrants without depressing the market price and investors may not be able to sell the shares or Purchase Warrants at all. An inactive market may also impair our ability to raise
capital  by  selling  Common  Stock  or  Purchase  Warrants  and  may  impair  our  ability  to  acquire  other  businesses,  applications  or  technologies  using  our  Common  Stock  or
Purchase Warrants as consideration, which, in turn, could materially adversely affect our business.

The market price of our securities may be highly volatile, and you may not be able to sell our securities.

Companies trading in the stock market in general have experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating
performance of these companies. Broad market and industry factors may negatively affect the market price of our securities, regardless of our actual operating performance.

55

 
 
 
 
 
 
 
 
 
 
 
 
 
 
The market price of our securities may be volatile. Our securities could be subject to wide fluctuations in price in response to a variety of factors, including the following:

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Adverse results or delays in pre-clinical or clinical studies;
Inability to obtain additional funding;
Any delay in filing an IND or BLA for any of our drug candidates and any adverse development or perceived adverse development with respect to the FDA’s review
of that IND or BLA;
Failure to develop successfully our drug candidates;
Failure to maintain our existing strategic collaborations or enter into new collaborations;
Failure by us or our licensors and strategic collaboration partners to prosecute, maintain or enforce our intellectual property rights;
Changes in laws or regulations applicable to future products;
Inability to obtain adequate product supply for our drug candidates or the inability to do so at acceptable prices;
Adverse regulatory decisions;
Introduction of new products, services or technologies by our competitors;
Failure to meet or exceed financial projections we may provide to the public;
Failure to meet or exceed the financial projections of the investment community;
The perception of the pharmaceutical industry by the public, legislatures, regulators and the investment community;

Announcements  of  significant  acquisitions,  strategic  partnerships,  joint  ventures  or  capital  commitments  by  us,  our  strategic  collaboration  partner  or  our
competitors;
Disputes or other developments relating to proprietary rights, including patents, litigation matters and our ability to obtain patent protection for our technologies;
Additions or departures of key scientific or management personnel;
Significant lawsuits, including patent or stockholder litigation;
Changes in the market valuations of similar companies;
Sales of our securities by us or our stockholders in the future;
Adverse economic conditions, including potential adverse effects of public health issues, such as the coronavirus outbreak on economic activity generally; and
Trading volume of our securities.

Our executive officers, directors and affiliates own a significant percentage of our stock and could exert significant control over matters subject to stockholder approval.

As of March 6, 2020, our executive officers, directors and affiliates beneficially own approximately 19.6% of our outstanding Common Stock. Therefore, these stockholders
will have the ability to influence us through their ownership positions. Further, Pharmsynthez has beneficial ownership of approximately 1.0 million shares of Common Stock.
These shares represent beneficial ownership of approximately 14.5% of our Common Stock as of March 6, 2020. These stockholders may be able to influence matters requiring
stockholder approval.

We have entered into several agreements with our significant stockholders.

We have entered into several agreements with our significant stockholders. Some of the agreement parties may be considered affiliates of ours, which may result in conflicts of
interest. In addition, these arrangements may not have been negotiated at arm’s length and may contain terms and conditions that are not in our best interest and would not
otherwise be applicable if we entered into arrangements with a third-party not affiliated with us.

56

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
Our preferred stock has rights, preferences and privileges that are not held by, and are preferential to, the rights of our common stockholders, which could result in the
interests of the holders of our preferred stock differing from those of our common stockholders.

The holders of our preferred stock have the right to receive a liquidation preference entitling them to be paid out of our assets available for distribution to stockholders before
any  payment  may  be  made  to  holders  of  any  Common  Stock  or  any  series  of  preferred  stock  ranked  junior  to  such  class  of  preferred  stock.  The  existence  of  a  liquidation
preference may reduce the value of our Common Stock, make it harder for us to sell shares of Common Stock in offerings in the future, or prevent or delay a change of control.
Additionally,  each  share  of  Series A  preferred  stock  is  convertible  into  one-twelfth  (1/12)  of  one  share  of  Common  Stock  and  1.625  shares  of  Series  B  preferred  stock  are
convertible  into  one  share  of  Common  Stock,  subject  to  an  Issuable  Maximum  and  subject  to  certain  adjustments,  which  may  cause  significant  dilution  to  our  common
stockholders.  The  preferential  rights  could  result  in  divergent  interests  between  the  holders  of  shares  of  preferred  stock  and  holders  of  our  Common  Stock.  In  addition,
Pharmsynthez holds shares consisting of the majority of our Series B Preferred Stock and all of our Series A Preferred Stock. The interests of these preferred holders may differ
from the interests of our security holders as a whole.

The issuance of future shares of Common Stock may result in dilution to our stockholders.

As  of  March  6,  2020,  we  had  approximately  6.3  million  shares  of  Common  Stock  outstanding,  excluding  1.7  million  of  potentially  dilutive  Common  Stock  related  to
outstanding Preferred Stock, warrants, options, restricted stock and Common Stock awards.

The issuance of these shares of Common Stock and the sale of these shares of Common Stock, or even the potential of such issuance and sale, may have a depressive effect on
the market price of our Common Stock and the issuance of such Common Stock will cause dilution to our stockholders.

We could be subject to securities class action litigation.

In the past, securities class action litigation has often been brought against a company following a decline in the market price of its securities. This risk is especially relevant for
us  because  pharmaceutical  companies  have  experienced  significant  stock  price  volatility  in  recent  years.  If  we  face  such  litigation,  it  could  result  in  substantial  costs  and  a
diversion of management’s attention and resources, which could harm our business.

We do not intend to pay dividends on our Common Stock or Preferred Stock so any returns will be limited to the value of our stock.

We have never declared or paid any cash dividends on our Common Stock or Preferred Stock. We currently anticipate that we will retain future earnings for the development,
operation  and  expansion  of  our  business  and  do  not  anticipate  declaring  or  paying  any  cash  dividends  for  the  foreseeable  future.  Any  return  to  common  or  preferred
stockholders will therefore be limited to the appreciation of their stock.

Certain provisions of our Articles of Incorporation, Bylaws, and the Nevada Revised States may be deemed to have an anti-takeover effect, which could cause the market
price of our Common Stock to decline.

Certain provisions of our Articles of Incorporation, Bylaws, and the Nevada Revised States may be deemed to have an anti-takeover effect. Such provisions may delay, deter or
prevent a tender offer or takeover attempt that a stockholder might consider to be in that stockholder’s best interests, including attempts that might result in a premium over the
market price for the shares held by stockholders, which could cause the market price of our Common Stock to decline.

57

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We have, in the past, failed to satisfy certain continued listing requirements on Nasdaq and could fail to satisfy those requirements again in the future which could affect
the market price of our Common Stock and liquidity and reduce our ability to raise capital.

Currently, our Common Stock trades on the Nasdaq Capital Market. During 2019, we received notification from Nasdaq informing us of certain listing deficiencies related to
the minimum number of publicly held shares required for continued listing. Although we have since cured the deficiency, it is possible that we could fall out of compliance
again  in  the  future.  If  we  fail  to  maintain  compliance  with  any  Nasdaq  listing  requirements,  we  could  be  delisted  and  our  stock  would  be  considered  a  penny  stock  under
regulations  of  the  SEC,  and  would  therefore  be  subject  to  rules  that  impose  additional  sales  practice  requirements  on  broker-dealers  who  sell  our  securities.  The  additional
burdens imposed upon broker-dealers by these requirements could discourage broker-dealers from effecting transactions in our Common Stock, which could severely limit the
market liquidity of our Common Stock and your ability to sell our securities in the secondary market.

We are a smaller reporting company and the reduced reporting requirements applicable to smaller reporting companies may make our Common Stock less attractive to
investors.

We  are  a  smaller  reporting  company  (“SRC”),  which  allows  us  to  take  advantage  of  exemptions  from  various  reporting  requirements  that  are  applicable  to  other  public
companies that are not SRCs, including not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act of 2002, as amended,
reduced disclosure obligations regarding executive compensation in our Annual Report and our periodic reports and proxy statements and providing only two years of audited
financial statements in our Annual Report and our periodic reports. We will remain an SRC until (a) the aggregate market value of our outstanding Common Stock held by non-
affiliates as of the last business day our most recently completed second fiscal quarter exceeds $250 million or (b) (1) we have over $100 million in annual revenues and (2) the
aggregate market value of our outstanding Common Stock held by non-affiliates as of the last business day our most recently completed second fiscal quarter exceeds $700
million. We cannot predict whether investors will find our Common Stock less attractive if we rely on certain or all of these exemptions. If some investors find our Common
Stock less attractive as a result, there may be a less active trading market for our Common Stock and our stock price may be more volatile and may decline.

 ITEM 1B – UNRESOLVED STAFF COMMENTS

Not Applicable.

 ITEM 2 – PROPERTIES

We occupy a facility consisting of approximately 1,700 square feet of office space at 40 Speen Street in Framingham, Massachusetts. The sublease is for 21 months through
September  2020.  We  believe  that  this  space  is  adequate  for  our  current  needs  and  that  if  additional  space  is  required,  it  can  be  obtained  at  commercially  reasonable  terms
nearby.

In  addition,  we  lease  450  sq.  ft.  of  office  space  in  Miami,  Florida.  The  lease  provided  for  an  initial  term  of  12  months,  which  commenced  on  December  1,  2016,  and  has
extended through November 30, 2020. We believe that this space is adequate for our current needs and that if additional space is required, it can be obtained at commercially
reasonable terms either within its current space or nearby.

 ITEM 3 – LEGAL PROCEEDINGS

From time to time, we may be a party to litigation and subject to claims incident to the ordinary course of business. Although the results of litigation and claims cannot be
predicted with certainty, we currently believe that the final outcome of these ordinary course matters will not have a material adverse effect on our business. Regardless of the
outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors.

There are no matters, as of December 31, 2019, that, in the opinion of management, might have a material adverse effect on our financial position, results of operations or cash
flows.

 ITEM 4 – MINE SAFETY DISCLOSURES

Not applicable.

58

 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
  ITEM  5  –  MARKET  FOR  REGISTRANT’S  COMMON  EQUITY,  RELATED  STOCKHOLDER  MATTERS  AND  ISSUER  PURCHASES  OF  EQUITY
SECURITIES

 PART II

Our Common Stock is listed for trading on The NASDAQ Capital Market under the symbol “XBIO.”

Holders of Record

As of March 6, 2020, there were 425 holders of record of our Common Stock.

Dividends

There  are  no  restrictions  in  our  articles  of  incorporation  or  bylaws  that  prevent  us  from  declaring  dividends.  The  Nevada  Revised  Statutes,  however,  do  prohibit  us  from
declaring dividends where after giving effect to the distribution of the dividend:

· We would not be able to pay our debts as they become due in the usual course of business; or
· Our total assets would be less than the sum of our total liabilities plus the amount that would be needed to satisfy the rights of stockholders who have preferential

rights superior to those receiving the distribution.

We have never previously declared or paid any cash dividends on our Common Stock. We currently intend to retain earnings and profits, if any, to support our business strategy
and do not intend to pay any cash dividends within the foreseeable future. Any future determination to pay cash dividends will be at the sole discretion of our Board of Directors
and will depend upon the financial condition of the Company, our operating results, capital requirements, general business conditions and any other factors that the Board of
Directors deems relevant.

Recent Sales of Unregistered Securities

None.

Repurchases of Equity Securities of the Issuer

During 2019 and 2018, we did not repurchase any of our outstanding securities.

 ITEM 6 – SELECTED FINANCIAL DATA

We are not required to provide the information required by this Item because we are a smaller reporting company.

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 ITEM 7 – MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

BUSINESS OVERVIEW

We are a biopharmaceutical company focused on advancing XCART™, a personalized Chimeric Antigen Receptor (“CAR”) T cell platform technology engineered to target
patient-specific  tumor  neoantigens.  The  Company  is  initially  advancing  cell-based  therapeutics  targeting  the  unique  B-cell  receptor  on  the  surface  of  an  individual  patient’s
malignant  tumor  cells,  for  the  treatment  of  B-cell  lymphomas.  The  XCART  technology,  developed  by  the  Scripps  Research  Institute  in  collaboration  with  the  Shemyakin-
Ovchinnikov  Institute  of  Bioorganic  Chemistry,  is  believed  to  have  the  potential  to  significantly  enhance  the  safety  and  efficacy  of  cell  therapy  for  B-cell  lymphomas  by
generating patient- and tumor-specific CAR T cells. On March 1, 2019, we entered into agreements with Hesperix S.A. (“Hesperix”) and Opko Pharmaceuticals LLC to acquire
the XCART technology (the “Transaction”) and closed the Transaction on July 19, 2019 concurrent with the completion of an approximate $15 million public offering (the
“Offering”).

The XCART technology platform was designed by its originators to utilize an established screening technique to identify peptide ligands that bind specifically to the unique B-
cell  receptor  (“BCR”)  on  the  surface  of  an  individual  patient’s  malignant  tumor  cells.  The  peptide  is  then  inserted  into  the  antigen-binding  domain  of  a  CAR  T  cell,  and  a
subsequent transduction/transfection process is used to engineer the patient’s T cells into a CAR T format which redirects the patient’s T cells to attack the tumor. Essentially,
the XCART screening platform is the inverse of a typical CAR T screening protocol wherein libraries of highly specific antibody domains are screened against a given target. In
the case of XCART screening, the target is itself an antibody domain, and hence highly specific by its nature. The XCART technology creates the possibility of personalized
treatment of lymphomas utilizing a CAR with an antigen-binding domain that should only recognize, and only be recognized by, the unique BCR of a particular patient’s B-cell
lymphoma. An expected result for XCART is limited off-tumor toxicities, such as B-cell aplasia. Our clinical development program will seek to confirm the early preclinical
results,  and  to  demonstrate  a  more  attractive  safety  profile  than  existing  therapies.  We  anticipate  that  our  primary  focus  will  now  be  on  advancing  this  technology  through
regulatory approval and commercialization.

Additionally, we are leveraging our proprietary drug delivery platform, PolyXen®, by partnering with biotechnology and pharmaceutical companies. PolyXen is an enabling
platform technology which can be applied to protein or peptide therapeutics. It employs the natural polymer polysialic acid (“PSA”) to prolong a drug's circulating half-life and
potentially improve other pharmacological properties. We incorporate our patented and proprietary technologies into a number of drug candidates currently under development
with biotechnology and pharmaceutical industry collaborators to create what we believe will be the next-generation biologic drugs with improved pharmacological properties
over existing therapeutics.

Our drug candidates have resulted from our research activities or that of our collaborators and are in the development stage. As a result, we continue to commit a significant
amount of our resources to our research and development activities and anticipate continuing to do so for the near future. To date, none of our drug candidates have received
regulatory marketing authorization in the United States (“U.S.”) by the FDA nor in any other territories by any applicable agencies. We are receiving ongoing royalties pursuant
to a license of our PolyXen technology to an industry partner.

We  also  have  oncology  therapeutic  investigational  drug  candidate  XBIO-101™  (sodium  cridanimod)  for  the  treatment  of  progestin  resistant  endometrial  cancer.  We  have
exclusive rights to develop and commercialize XBIO-101 worldwide, except for specified countries in the Commonwealth of Independent States. XBIO-101 has been granted
orphan drug designation by the U.S. Food and Drug Administration (“FDA”) for the potential treatment of progesterone receptor negative endometrial cancer in conjunction
with progesterone therapy. We commenced a Phase 2 trial under an IND in 2017, with first patient dosed in October 2017. We closed patient enrollment in the trial in March
2019 as a result of slower than expected progress on the trial resulting from patient enrollment and retention challenges and have suspended further development of XBIO-101.
We currently have no plans to continue development of XBIO-101.

Although we hold a broad patent portfolio, the focus of our internal development efforts in 2019 was limited to winding down the XBIO-101 phase II trial and preliminary
development efforts associated with the XCART technology.

60

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Critical Accounting Estimates

The  preparation  of  our  financial  statements  in  conformity  with  U.S.  generally  accepted  accounting  principles  (“U.S.  GAAP”)  requires  us  to  make  estimates,  judgments  and
assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenue, costs and expenses during the
reporting period. On an ongoing basis, we evaluate our estimates that are based on historical experience and on various other assumptions  that  we  believe  to  be  reasonable
under the circumstances. The result of these evaluations forms the basis for making judgments about the carrying values of assets and liabilities and the reported amount of
expenses that are not readily apparent from other sources. Because future events and their effects cannot be determined with certainty, actual results and outcomes could differ
materially from our estimates, judgments and assumptions.

Management believes that the following accounting estimates are the most critical to aid in fully understanding and evaluating our reported financial results, and they require
management’s most difficult subjective or complex judgments, resulting from the need to make estimates about the effect of matters that are inherently uncertain. The following
narrative describes these critical accounting estimates, judgments and assumptions and the effect if actual results differ from these assumptions.

Revenue Recognition

We enter into supply, license and collaboration arrangements with pharmaceutical and biotechnology partners, some of which include royalty agreements based on potential net
sales of approved commercial pharmaceutical products.

Effective  January  1,  2018,  we  adopted Accounting  Standards  Codification  (“ASC”)  Topic  606, Revenue  from  Contracts  with  Customers  (“ASC  606”),  using  the  modified
retrospective transition method. Under this method, results for reporting periods beginning after January 1, 2018 are presented under ASC 606, while prior period amounts are
not adjusted. This standard applies to all contracts with customers, except for contracts that are within the scope of other standards, such as leases, insurance, collaboration
arrangements and financial instruments. We did not have any revenue generating contracts with customers and, therefore, the adoption of this new revenue standard did not have
a material impact on our consolidated financial statements. Under ASC 606, an entity recognizes revenue when its customer obtains control of promised goods or services, in
an amount that reflects the consideration which 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 at a
point in time, or over time, as it satisfies a performance obligation. We only apply the five-step model to contracts when it is probable that it will collect the consideration it is
entitled to in exchange for the goods or services it transfers to the customer. At contract inception, once the contract is determined to be within the scope of ASC 606, we assess
the goods or services promised within each contract, determine those that are performance obligations, and assess whether each promised good or service is distinct. We then
recognize as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied.

As part of the accounting for these arrangements, we must use significant judgment to determine: a) the number of performance obligations based on the determination under
step (ii) above; b) the transaction price under step (iii) above; and c) the stand-alone selling price for each performance obligation identified in the contract for the allocation of
transaction price in step (iv) above. We use judgment to determine whether milestones or other variable consideration should be included in the transaction price as described
further below. The transaction price is allocated to each performance obligation on a relative stand-alone selling price basis, for which we recognize revenue as or when the
performance obligations under the contract are satisfied. In developing the stand-alone price for a performance obligation, we consider applicable market conditions and relevant
entity-specific factors, including factors that were contemplated in negotiating the agreement with the customer and estimated costs. We validate the stand-alone selling price for
performance obligations by evaluating whether changes in the key assumptions used to determine the stand-alone selling prices will have a significant effect on the allocation of
transaction price between multiple performance obligations. We recognize a contract asset or liability for the difference between our performance (i.e., the goods or services
transferred to the customer) and the customer’s performance (i.e., the consideration paid by, and unconditionally due from, the customer).

61

 
 
 
 
 
 
  
 
 
 
 
 
 
The  terms  of  our  license  agreements  may  include  delivery  of  an  IP  license  to  a  collaboration  partner.  We  may  be  compensated  under  license  arrangements  through  a
combination  of  non-refundable  upfront  receipts,  development  and  regulatory  objective  receipts  and  royalty  receipts  on  future  product  sales  by  partners.  We  anticipate
recognizing non-refundable upfront license payments and development and regulatory milestone payments received by us in license and collaboration arrangements that include
future obligations, such as supply obligations, ratably over our expected performance period under each respective arrangement. We make our best estimate of the period over
which we expect to fulfil our performance obligations, which may include technology transfer assistance, research activities, clinical development activities, and manufacturing
activities  from  development  through  the  commercialization  of  the  product.  Given  the  uncertainties  of  these  collaboration  arrangements,  significant  judgment  is  required  to
determine the duration of the performance period.

When we enter into an arrangement to sublicense some of our patents, we will consider the performance obligations to determine if there is a single element or multiple elements
to  the  arrangement  as  we  determine  the  proper  method  and  timing  of  revenue  recognition.  We  consider  the  terms  of  the  license  or  sublicense  for  such  elements  as  price
adjustments  or  refund  clauses  in  addition  to  any  performance  obligations  for  us  to  provide  such  as  services,  patent  defense  costs,  technology  support,  marketing  or  sales
assistance or any other elements to the arrangement that could constitute an additional deliverable to it that could change the timing of the revenue recognition. Non-refundable
upfront  license  and  sublicense  fees  received,  whereby  continued  performance  or  future  obligations  are  considered  inconsequential  or  perfunctory  to  the  relevant  licensed
technology, are recognized as revenue upon delivery of the technology.

We  expect  to  recognize  royalty  revenue  in  the  period  of  sale,  based  on  the  underlying  contract  terms,  provided  that  the  reported  sales  are  reliably  measurable,  we  have  no
remaining performance obligations, and all other revenue recognition criteria are met.

We anticipate reimbursements for research and development services completed by us related to the collaboration agreements to be recognized in operations as revenue on a
gross basis.

Our license and collaboration agreements with certain collaboration partners could also provide for future milestone receipts to us based solely upon the performance of the
respective collaboration partner in consideration of deadline extensions or upon the achievement of specified sales volumes of approved drugs. For such receipts, we expect to
recognize the receipts as revenue when earned under the applicable contract terms on a performance basis or ratably over the term of the agreement. These receipts may also be
recognized as revenue when continued performance or future obligations by us are considered inconsequential or perfunctory.

Research and Development Expenses

Research and development expenses consist of expenses incurred in performing research and development activities, including compensation and benefits, facilities expenses,
overhead expenses, clinical trial and related clinical manufacturing expenses, fees paid to Clinical Research Organizations (“CROs”) and contract manufacturing organizations
and  other  outside  expenses.  We  expense  research  and  development  costs  as  incurred.  We  expense  upfront,  non-refundable  payments  made  for  research  and  development
services as obligations are incurred. The value ascribed to intangible assets acquired but which have not met capitalization criteria is expensed as research and development at
the time of acquisition.

We  are  required  to  estimate  accrued  research  and  development  expenses  at  each  reporting  period.  This  process  involves  reviewing  open  contracts  and  purchase  orders,
communicating with our personnel to identify services that have been performed on our behalf and estimating the level of service performed and the associated cost incurred for
the service when we have not yet been invoiced or otherwise notified of actual costs. The majority of our service providers invoice us in arrears for services performed, on a pre-
determined schedule or when contractual milestones are met. However, some require advanced payments. We make estimates of accrued expenses as of each balance sheet date
in the financial statements based on facts and circumstances known at that time. We periodically confirm the accuracy of the estimates with the service providers and make
adjustments, if necessary. Examples of estimated accrued research and development expenses include fees paid to:

·
·
·

Program managers in connection with overall program management of clinical trials;
CROs in connection with clinical trials; and
Investigative sites in connection with clinical trials.

62

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We base our expenses related to clinical trials on our estimates of the services received and efforts expended pursuant to quotes and contracts with multiple research institutions
and CROs that conduct and manage clinical trials on our behalf. The financial terms of these agreements are subject to negotiation, vary from contract to contract and may result
in uneven payment flows. There may be instances in which payments made to vendors will exceed the level of services provided and result in a prepayment of the expense. In
accruing  service  fees,  we  estimate  the  time  period  over  which  services  will  be  performed  and  the  level  of  effort  to  be  expended  in  each  period.  If  the  actual  timing  of  the
performance of services or the level of effort varies from the estimate, we adjust the accrual or prepaid accordingly. Although we do not expect our estimates to be materially
different from amounts actually incurred, our understanding of the status and timing of services performed relative to the actual status and timing of services performed may
vary and may result in reporting amounts that are too high or too low in any particular period. To date, there have not been any material adjustments to our prior estimates of
accrued research and development expenses.

Share-based Expense

Share-based  expense  includes  grants  of  options  and  restricted  stock  units  (“RSUs”)  to  employees  and  non-employees  to  purchase  shares  of  Common  Stock,  Joint  Share
Ownership Plan (“JSOP”) awards to employees, as well as agreements to issue Common Stock in exchange for services provided by non-employees.

Share-based expense is based on the estimated fair value of the option or calculated using the Black-Scholes option pricing model. Determining the appropriate fair value model
and related assumptions requires judgment, including estimating share price volatility and expected terms of the awards. The expected volatility rates are estimated based on the
historical volatility of the Company. To the extent Company data is not available for the full expected term of the awards, we use a weighted average of our historical volatility
and  of  a  peer  group  of  comparable  publicly  traded  companies  over  the  expected  term  of  the  option.  The  expected  term  represents  the  time  that  options  are  expected  to  be
outstanding. We account for forfeitures as they occur and not at the time of grant. We have not paid dividends and do not anticipate paying cash dividends in the foreseeable
future and, accordingly, we use an expected dividend yield of zero. The risk-free interest rate is based on the rate of U.S. Treasury securities with maturities consistent with the
estimated expected term of the awards. Upon exercise, stock options are redeemed for newly issued shares of Common Stock. RSUs are redeemed for newly issued shares of
Common Stock as the vesting and settlement provisions of the grant are met.

For employee options that vest based solely on service conditions, the fair value measurement date is generally on the date of grant and the related compensation expense is
recognized on a straight-line basis over the requisite vesting period of the awards.

For non-employee options, the fair value measurement date is the earlier of the date the performance of services is complete or the date the performance commitment has been
reached. We generally determine that the fair value of the stock options is more reliably measurable than the fair value of the services received. Compensation expense related
to  stock  options  granted  to  non-employees  that  vest  based  solely  on  service  conditions  is  subject  to  re-measurement  at  each  reporting  period  until  the  options  vest  and  is
recognized on a straight-line basis over requisite vesting period of the awards. In June 2018, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards
Update (“ASU”) 2018-07, Compensation – Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting. ASU 2018-07 expanded the
scope of Topic 718 to include share-based payment transactions for acquiring goods and services from nonemployees. An entity should apply the requirements of Topic 718 to
nonemployee awards except for specific guidance on inputs to an option pricing model and the attribution of cost. ASU 2018-07 specifies that Topic 718 applies to all share-
based payment transactions in which a grantor acquires goods or services to be used or consumed in a grantor’s own operations by issuing share-based payment awards, and that
Topic 718 does not apply to share-based payments used to effectively provide (1) financing to the issuer or (2) awards granted in conjunction with selling goods or services to
customers as part of a contract accounted for under Topic 606 Revenue from Contracts with Customers. ASU 2018-07 was effective for us in the first quarter of fiscal 2019.
Adoption of this standard did not have a material impact on our consolidated financial statements. As a result of the adoption of ASU 2018-07, compensation expense related to
stock options granted to non-employees is no longer remeasured at each reporting period.

63

 
 
 
 
  
 
 
 
 
 
 
 
The fair value of Common Stock awards issued in exchange for services provided by non-employees is generally determined by using the fair value of the services provided, as
this  provides  the  most  reliable  measure  of  the  fair  value  of  the  awards  granted.  Share-based  expense  is  recognized  as  services  are  rendered  on  a  straight-line  basis.  The
assumptions used in calculating the fair value of the Common Stock awards represent our best estimates and involve inherent uncertainties and the application of our judgment.
As a result, if factors change and we use different assumptions, share-based expense related to the Common Stock awards could be materially different in the future.

Warrants

In  connection  with  certain  financing,  consulting  and  collaboration  arrangements,  we  issued  warrants  to  purchase  shares  of  our  Common  Stock.  Outstanding  warrants  are
standalone instruments that are not puttable or mandatorily redeemable by the holder and are classified as equity awards. We measure the fair value of the awards using the
Black-Scholes  option  pricing  model  as  of  the  measurement  date.  Warrants  issued  to  collaboration  partners  in  conjunction  with  the  issuance  of  Common  Stock  are  initially
recorded at fair value as a reduction in additional paid-in capital of the Common Stock issued.

All other warrants are recorded at fair value as expense on a straight-line basis over the requisite service period or at the date of issuance if there is not a service period or if
service has already been rendered. For warrants that contain vesting triggers based on the achievement of certain objectives, we apply judgment to estimate the probability and
timing of the achievement of those objectives. These estimates involve inherent uncertainties, and as a result, if the probability or timing of the achievement of those objectives
change, expense related warrants could be materially different in the future.

For warrants issued in connection with financing arrangements we allocate the proceeds based on the relative fair value of the award and other instrument(s).

Goodwill and Indefinite-lived Intangible Assets

Assets  acquired  and  liabilities  assumed  in  business  combinations,  licensing  and  other  transactions  are  generally  recognized  at  the  date  of  acquisition  at  their  respective  fair
values. Any excess of the purchase price over the estimated fair values of the net assets acquired is recognized as goodwill. At acquisition, we generally determine the fair value
of intangible assets, including in-process research and development (“IPR&D”), using the “income method.” This method starts with a forecast of net cash flows, risk adjusted
for estimated probabilities of technical and regulatory success (for IPR&D) and adjusted to present value using an appropriate discount rate that reflects the risk associated with
the cash flow streams.

Subsequent to acquisition, goodwill and indefinite lived intangibles are not amortized but are tested at least annually as of October 1 for impairment, or when events or changes
in  circumstances  indicate  it  is  more  likely  than  not  that  the  carrying  amount  of  such  assets  may  not  be  recoverable.  Our  annual  assessment  may  consist  of  a  qualitative  or
quantitative analysis to determine if it is more likely than not that its fair value exceeds the carrying value. When performing the qualitative method, we determine whether the
existence of events or circumstances leads us to determine that it is more likely than not (that is, a likelihood of more than 50%) that goodwill and indefinite lived intangibles are
impaired. If we choose to first assess qualitative factors and it is determined that it is not more likely than not that goodwill and intangible assets are impaired, then we are not
required to take further action to test for impairment. We also have the option to bypass the qualitative assessment and perform only the quantitative impairment test, which we
may choose to do in some periods but not in others. As the option to perform the qualitative assessment is not a permanent election, we reassess this option during each annual
impairment review.

When performing quantitative analysis, we use the income and market valuation methods and may weight outcomes of valuation approaches when estimating fair value. Inputs
and  assumptions  used  to  determine  fair  value  are  determined  from  a  market  participant  view,  which  might  be  different  than  our  specific  views.  The  valuation  process  is
complex  and  requires  significant  input  and  judgment  using  internal  and  external  sources.  Market  approaches  depend  on  the  availability  of  guideline  companies  and
representative  transactions.  When  using  the  income  approach,  complex  and  judgmental  matters  applicable  to  the  valuation  process  may  include  estimated  useful  life,
projections, tax rates and discount rates.

64

 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
Goodwill

Goodwill  was  $0  and  approximately  $3.3  million  at  December  31,  2019  and  2018,  respectively.  We  compare  the  fair  value  of  our  reporting  unit  to  its  carrying  value. An
impairment  loss,  if  any,  is  measured  as  the  excess  of  the  carrying  value  of  goodwill  over  the  fair  value  of  goodwill.  We  determine  our  reporting  unit  by  identifying  the
components of our operating segment with similar economic characteristics based on quantitative and qualitative factors that have discrete financial information available. We
determined that we have one reporting unit. During 2018 we used the quantitative method and determined the fair value of Goodwill exceeded its carrying value as of October
1, 2018. We experienced a significant decline in the market price of our stock during 2019 resulting in a drop in our market capitalization indicating potential impairment. The
Company determined the fair value of the reporting unit using its market capitalization and concluded that the fair value of the reporting unit was less than the carrying amount
in excess of Goodwill. As result, we recorded a Goodwill impairment charge of $3.3 million during the year ended December 31, 2019. There was no impairment recorded
during the year ended December 31, 2018.

Indefinite-lived Intangible Assets

Indefinite-lived  intangible  assets  were  approximately  $9.2  million  at  December  31,  2019  and  2018,  respectively.  IPR&D  intangible  assets  are  considered  indefinite-lived
intangible assets until completion or abandonment of the associated research and development efforts. We compare the fair value of the intangible asset to its carrying value. An
impairment loss, if any, is measured as the excess of the carrying value of the intangible asset over its fair value. During 2019 and 2018, we used the quantitative method and
determined the fair value of the indefinite-lived intangible asset exceeded its carrying value as of October 1, 2019 and 2018.

Intangible assets are highly vulnerable to impairment charges, particularly newly acquired assets for IPR&D. Considering the high risk nature of research and development and
the  industry’s  success  rate  of  bringing  developmental  compounds  to  market,  IPR&D  impairment  charges  are  likely  to  occur  in  future  periods.  Estimating  the  fair  value  of
IPR&D  for  potential  impairment  is  highly  sensitive  to  changes  in  projections  and  assumptions  and  changes  in  assumptions  could  potentially  lead  to  impairment.  With  the
assistance of an independent third party, we calculated the fair value of our IPR&D by using the Multi-Period Excess-Earnings Method (the “MPEEM”) which is a form of the
income  approach.  Under  the  MPEEM,  the  fair  value  of  an  intangible  asset  is  equal  to  the  present  value  of  the  asset’s  incremental  after-tax  cash  flows  (excess  earnings)
remaining after deducting the market rates of return on the estimated value of contributory assets (contributory charge) over its remaining useful life. This method requires us to
make long-term projections of the amount and timing of income and expenses related to development and commercialization of the acquired intangible asset and assumptions
regarding the rate of return on contributory assets, the weighted average cost of capital and the discount rate for estimated future after-tax cash flows. Specifically, this method
took into account our estimates of future incremental milestone payments that may be achieved upon completion of clinical trial stages, regulatory approval and sales goals
upon  commercialization,  as  well  as  our  expected  royalty  income  based  on  sales  upon  commercialization.  Projected  expenses  are  based  on  our  forecasted  spend  required  to
complete the development of our IPR&D, which will require us to raise further capital to fund the development. Our projections are estimates subject to change based on several
factors including the results of clinical trials and delays in regulatory approval. The discount rate used is commensurate with the uncertainties associated with the economic
estimates  described  above  and  reflects  the  stage  of  development,  the  time  and  resources  needed  to  complete  the  development  of  the  product  and  the  risks  of  advancement
through regulatory approval processes.

Key assumptions utilized in the fair valuation of our indefinite-lived intangible asset are as follows:

·
·
·

Discount rate – 45.0%
Estimated aggregate milestone receipts – approximately $300 million
Royalty rates – 10% of net sales

65

 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
We believe our estimates and assumptions are reasonable and otherwise consistent with assumptions that marketplace participants would use in their estimates of fair value.
However, if future results are not consistent with our estimates and assumptions, then we may be exposed to an impairment charge, which could be material. Use of different
estimates and judgments could yield materially different results in our analysis and could result in materially different asset values or expense.

There can be no assurance that we will be able to successfully develop and complete the acquired IPR&D program and profitably commercialize the underlying drug candidates
before our competitors develop and commercialize similar products, or at all. Moreover, if the acquired IPR&D program fails or is abandoned during development, then we
may  not  realize  the  value  we  have  estimated  and  recorded  in  our  financial  statements  on  the  acquisition  date,  and  we  may  also  not  recover  the  research  and  development
investment  made  since  the  acquisition  date  to  further  develop  that  program.  If  such  circumstances  were  to  occur,  our  future  operating  results  could  be  materially  adversely
impacted.

We  did  not  record  an  impairment  charge  as  a  result  of  our  indefinite-lived  intangible  asset  impairment  tests  in  2019  or  2018.  We  will  continue  to  closely  monitor  the
performance of our indefinite-lived intangible asset. If the business experiences adverse changes in our key assumptions and judgments, we will perform an interim indefinite-
lived intangible asset impairment analysis. There can be no assurance that future events will not result in an impairment of our indefinite-lived intangible asset. As a result of the
going concern uncertainty discussed under Liquidity and Capital Resources below, the recoverability and classification of the Company’s intangible assets could be adversely
affected.

Results of Operations

The table below sets forth the comparison of our historical results of operations for the year ended December 31, 2019 to the year ended December 31, 2018.

Description
Revenues:
Royalty revenue
Operating costs and expenses:
Research and development
General and administrative
Goodwill impairment
   Total operating costs and expenses
Loss from operations
Other income (expense):
Other income (expense)
Interest income, net
Net loss

Revenue

2019

2018

Increase

Percentage Change  

$

$

$

17,066 

$

–   

$

17,066   

(4,889,340)  
(4,731,176)  
(3,283,379)  
(12,903,895)  
(12,886,829)  

3,315 
108,489 
(12,775,025)  

$

$

(2,883,952)  
(4,392,375)  
–   
(7,276,327)  
(7,276,327)  

(24,640)  
509   
(7,300,458)  

$

$

2,005,388   
338,801   
3,283,379   
5,627,568   
5,610,502   

27,955   
107,980   
5,474,567   

100.0%

69.5%
7.7%
100.0%
77.3%
77.1%

113.5%
212.1%
75.0%

For the year ended December 31, 2019, revenue represented royalty revenue related to our sublicense agreement with Takeda Pharmaceuticals Co. Ltd. (“Takeda.”) Sales of the
products related to the treatment of blood and bleeding disorders (“Covered Products”) by the sublicensee commenced during the third quarter of 2019 and royalty payments
earned on these sales were recorded as revenue by us during the fourth quarter of 2019. We anticipate recognizing these royalty payments as revenue when we can reliably
measure them, which is upon receipt of reports from Takeda. As the reported sales are not reliably measurable until we receive notification from Takeda, we expect to recognize
revenue from these royalty payments in the quarter after the actual sales of the Covered Products have occurred. We did not receive any license or collaboration service revenue
for the year ended December 31, 2018.

66

 
 
 
 
 
 
 
 
 
 
   
   
 
 
  
 
 
    
 
    
 
  
 
 
 
 
 
  
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
    
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Research and Development Expense

Overall, R&D expenses for the year ended December 31, 2019 increased by $2.0 million, or 69.5% to $4.9 million from $2.9 million for the year ended December 31, 2018
primarily  due  to  IPR&D  expense  of  $3.0  million.  During  the  year  ended  December  31,  2019,  we  expensed  $3.0  million  of  IPR&D  associated  with  our  acquisition  of  the
XCART technology. There was no similar expense in 2018. Excluding the $3.0 million of IPR&D expense from total R&D expense of $4.9 million, R&D expense for the year
ended December 31, 2019 was $1.9 million, a decrease of $1.0 million, or 35.6%, from $2.9 million in the comparable period in 2018.

The table below sets forth the research and development expenses incurred by category of expense for the year ended December 31, 2019 and 2018.

Category of Expense

IPR&D expense
Outside services and Contract Research Organizations
Share-based expense
Personnel costs
Other
Total research and development expense

Year ended December 31,

2019

2018

3,031,226   
1,357,820   
156,964   
297,651   
45,679   
4,889,340   

$

$

– 
2,242,658 
203,031 
280,118 
158,145 
2,883,952 

$

$

The decrease in outside services and contract research organizations expense was primarily due to decreased spending on our XBIO-101 phase 2 clinical trial during the year
ended December 31, 2019 as compared to same period in the prior year. Costs related to the trial were generally lower as we closed patient enrollment during the first quarter of
2019 and suspended further development of XBIO-101. Share-based expense decreased during the year ended December 31, 2019 as compared to the same period in the prior
year primarily due to the revaluation of previously issued warrants to Serum Institute. Other expense decreased during the year ended December 31, 2019 as compared to the
same period in the prior year primarily due to lower rent costs as we relocated our corporate headquarters in January 2019.

General and Administrative Expense

G&A expense was $4.7 million for the year ended December 31, 2019, increasing by approximately $0.3 million compared to the same period in the prior year primarily due to
$1.1 million of transaction costs associated with the XCART acquisition. There was no similar expense in 2018. Excluding the $1.1 million of transaction costs associated with
the XCART acquisition from total G&A expenses of $4.7 million, G&A expense for the year ended December 31, 2019 was $3.6 million, a decrease of $0.8 million, or 17.4%,
from $4.4 million in the comparable period in 2018. Payroll and share-based expense decreased due to lower headcount during year ended December 31, 2019 compared to the
same period in the prior year, and consulting costs decreased as we reduced spending due to capital constraints. These decreases were partially offset by an increase in investor
relations activities during the year ended December 31, 2019 compared to the same period in the prior year.

Goodwill Impairment

Goodwill impairment was $3.3 million for the year ended December 31, 2019 compared to no impairment for the same period in the prior year. During the second half of 2019,
we experienced a significant decline in the market price of our stock. As a result, we determined that the fair value of the reporting unit, using our market capitalization, was less
than the carrying amount in excess of Goodwill and an impairment charge of $3.3 million was recorded.

67

 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
Other Income (Expense)

Other income was $3,315 for the year ended December 31, 2019 compared to $24,640 of other expense for the same period in 2018. This decrease in expense was primarily
related to a reduction in foreign currency transactions and related changes in foreign currency exchange rates during the year ended December 31, 2019 as compared to the same
period in 2018.

Interest Income, net

Interest income, net increased to approximately $108,000 during the year ended December 31, 2019 as compared to $509 in the same period in the prior year. This increase is
primarily due to the increase in cash during the year ended December 31, 2019 as compared to the same period in the prior year due to the receipt of net proceeds of $13.4
million from the Offering.

Non-GAAP Measures

In our narrative discussion of operations above, we exclude the impact of our acquisition of the XCART technology from certain operating measures, which narrative discussion
includes  reconciliation  of  such  adjusted  financial  measures  to  the  directly  comparable  U.S.  GAAP  financial  measure.  We  believe  these  adjusted  operating  measures  may
provide  investors  with  useful  information  regarding  our  underlying  performance  from  period  to  period  and  allow  investors  to  better  understand  our  results  of  operations.
Management uses these adjusted measures when assessing the performance of the business.

Liquidity and Capital Resources

We incurred a net loss of approximately $12.8 million for the year ended December 31, 2019. We had an accumulated deficit of approximately $166.0 million at December 31,
2019 as compared to an accumulated deficit of approximately $153.2 million at December 31, 2018. Working capital (deficit) was approximately $9.7 million at December 31,
2019 and $(0.4) million at December 31, 2018, respectively. During the year ended December 31, 2019, our working capital increased by $10.1 million due to the Offering and
our March 2019 registered direct offering resulting in $16.1 million in combined net proceeds to us. This increase in working capital was partially offset by our net loss for the
year ended December 31, 2019. We expect to continue incurring losses for the foreseeable future and may need to raise additional capital or pursue other strategic alternatives in
the long-term in order to continue the pursuit of our business plan.

Our principal source of liquidity consists of cash. At December 31, 2019, we had approximately $10.4 million in cash and $1.4 million in current liabilities. At December 31,
2018, we had approximately $0.6 million in cash and $1.6 million in current liabilities.

We  have  historically  relied  upon  sales  of  our  equity  securities  to  fund  our  operations.  From  2005  until  December  31,  2019  we  have  raised  approximately  $76.0  million  in
proceeds from offerings of our common and preferred stock and received approximately $20.0 million from revenue producing activities. More than 90% of the milestone and
sublicense  revenue  received  to  date  has  been  from  a  single  collaborator,  Takeda.  We  expect  the  majority  of  our  funding  through  equity  or  equity-linked  instruments,  debt
financings, corporate collaborations, related party funding and/or licensing agreements to continue as a trend for the foreseeable future.

Management evaluates whether there are conditions or events, considered in the aggregate, that raise substantial doubt about our ability to continue as a going concern within
one year after the date that the financial statements are issued. We have incurred substantial losses since our inception, and we expect to continue to incur operating losses in the
near-term. These factors raise substantial doubt about our ability to continue as a going concern. We believe that we have access to capital resources through possible public or
private equity offerings, debt financings, corporate collaborations, related party funding, or other means to continue as a going concern. On March 7, 2019, we closed on a $3.1
million registered direct Common Stock offering resulting in $2.7 million of net proceeds to us. On July 19, 2019, we completed the Offering resulting in approximately $13.4
million of net proceeds to us. We believe that these financings, coupled with our existing resources, will be adequate to fund our operations through mid-2021. However, we
anticipate we may need additional capital in the long-term to pursue our business initiatives. The terms, timing and extent of any future financing will depend upon several
factors, including the achievement of progress in our clinical development programs, our ability to identify and enter into licensing or other strategic arrangements, and factors
related to financial, economic and market conditions, many of which are beyond our control.

68

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cash Flows from Operating Activities

Cash flows used in operating activities for the year ended December 31, 2019 totaled approximately $6.4 million, which was primarily due to our net loss for the period, offset
by non-cash charges associated with acquired IPR&D, goodwill impairment and share-based expense.

Cash flows used in operating activities for the year ended December 31, 2018 totaled approximately $6.5 million, which was primarily due to our $7.3 million net loss for the
period offset by non-cash charges of $1.4 million,

Cash Flows from Investing Activities

Cash flows provided by investing activities for the year ended December 31, 2019 totaled $2,000, which represented proceeds from the sale of property and equipment.

Cash  flows  provided  by  investing  activities  for  the  year  ended  December  31,  2018  totaled  approximately  $23,000  which  represented  proceeds  from  the  sale  of  laboratory
equipment.

As of December 31, 2019, there were no material commitments for capital expenditures.

Cash Flow from Financing Activities

Cash flows from financing activities for the year ended December 31, 2019 totaled approximately $16.1 million representing net proceeds from our registered direct offering in
March 2019 and the Offering in July 2019.

Cash flows from financing activities for the year ended December 31, 2018 totaled approximately $1.5 million representing proceeds from the exercise of warrants.

Off-Balance Sheet Arrangements

We do not have any off-balance sheet arrangements that have or are reasonably likely to have a current or future material effect on our financial condition, changes in financial
condition, revenues or expenses, results of operations, liquidity, capital expenditures or capital resources.

Contractual Obligations

Contractual obligations represent future cash commitments and liabilities under agreements with third-parties and exclude contingent liabilities for which we cannot reasonably
predict future payment. Our contractual obligations result from property leases for office space. Although we do have obligations for CRO services, the table below excludes
potential payments we may be required to make under our agreements with CROs because timing of payments and actual amounts paid under those agreements may be different
depending on the timing of receipt of goods or services or changes to agreed-upon terms or amounts for some obligations, and those agreements are cancelable upon written
notice by the Company and therefore, not long-term liabilities. The contracts also contain variable costs that are hard to predict as they are based on such things as patients
enrolled and clinical trial sites, which can vary and, therefore, are also not included in the table below. Additionally, the expected timing of payment of the obligations presented
below is estimated based on current information.

69

 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The following tables represent our contractual obligations as of December 31, 2019, aggregated by type:

Lease obligations
Total

Recent Accounting Standards

Payments Due by Period
As of December 31, 2019

Total

Less
than
1 year

1-3
years

3-5
years

More
than
5 years

$
$

39,920   
39,920   

$
$

39,920   
39,920   

$
$

–   
–   

$
$

–   
–   

$
$

– 
– 

Refer to Note 2, Summary of Significant Accounting Policies, of the accompanying financial statements set forth in Item 8.

 ITEM 7A – QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are not required to provide the information required by this Item because we are a smaller reporting company.

70

 
 
 
 
 
 
 
 
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 ITEM 8 – FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Report of Independent Registered Public Accounting Firm

Consolidated Balance Sheets as of December 31, 2019 and 2018

Consolidated Statements of Comprehensive Loss for the years ended December 31, 2019 and 2018

Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2019 and 2018

Consolidated Statements of Cash Flows for the years ended December 31, 2019 and 2018

Notes to Consolidated Financial Statements

F-1

F-2

F-3

F-4

F-5

F-6

71

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and Board of Directors of
Xenetic Biosciences, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Xenetic Biosciences, Inc. (the “Company”) as of December 31, 2019 and 2018, and the related consolidated
statements of comprehensive loss, stockholders’ equity and cash flows for each of the two years in the period ended December 31, 2019 , and the related notes (collectively
referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December
31, 2019 and 2018, and the results of its operations and its cash flows for each of the two years in the period ended December 31, 2019, in conformity with accounting principles
generally accepted in the United States of America.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our
audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) ("PCAOB") and are required to be independent with
respect  to  the  Company  in  accordance  with  the  U.S.  federal  securities  laws  and  the  applicable  rules  and  regulations  of  the  Securities  and  Exchange  Commission  and  the
PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about
whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an
audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the
purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that
respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included
evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe
that our audits provide a reasonable basis for our opinion.

/s/ Marcum llp

Marcum llp

We have served as the Company’s auditor since 2015.

Boston, Massachusetts
March 26, 2020

F-1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
XENETIC BIOSCIENCES, INC.
 CONSOLIDATED BALANCE SHEETS

December 31, 2019    

December 31, 2018  

ASSETS
Current assets:

Cash
Restricted cash
Prepaid expenses and other
Total current assets

Property and equipment, net
Goodwill
Indefinite-lived intangible assets
Other assets
Total assets

LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:

Accounts payable
Accrued expenses and other current liabilities
Total current liabilities

Deferred tax liability
Total liabilities

Commitments and contingent liabilities (Note 13)
Stockholders' equity:

Preferred stock, 10,000,000 shares authorized

Series B, $0.001 par value: 1,804,394 shares issued and outstanding as of December 31, 2019 and December 31,

2018

Series A, $0.001 par value: 970,000 shares issued and outstanding as of December 31, 2019 and December 31,

2018

Common stock, $0.001 par value; 12,500,000 shares authorized as of December 31, 2019 and December 31,

2018; 6,092,432 and 810,856 shares issued as of December 31, 2019 and December 31, 2018, respectively;
6,065,441 and 783,865 shares outstanding as of December 31, 2019 and December 31, 2018, respectively

Additional paid in capital
Accumulated deficit
Accumulated other comprehensive income
Treasury stock

Total stockholders' equity
Total liabilities and stockholders' equity

$

$

$

$

10,367,920   
–   
722,079   
11,089,999   
757   
–   
9,243,128   
1,213,042   
21,546,926   

931,128   
484,029   
1,415,157   

2,918,518   
4,333,675   

1,804   

970   

6,092   
188,240,451   
(166,008,620)  
253,734   
(5,281,180)  
17,213,251   
21,546,926   

$

$

$

$

571,605 
66,510 
555,856 
1,193,971 
4,956 
3,283,379 
9,243,128 
705,660 
14,431,094 

934,147 
665,641 
1,599,788 

2,918,518 
4,518,306 

1,804 

970 

811 
168,170,244 
(153,233,595)
253,734 
(5,281,180)
9,912,788 
14,431,094 

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

F-2

 
 
 
 
 
 
 
 
   
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
XENETIC BIOSCIENCES, INC.
 CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS

Revenue

Royalty revenue

Total revenue

Operating costs and expenses:
Research and development
General and administrative
Goodwill impairment (Note 6)

Total operating costs and expenses

Loss from operations

Other income (expense):

Other income (expense)
Interest income, net

Total other income (expense)

Net loss

Deemed dividend

Net loss applicable to common stockholders

Basic and diluted loss per share

Weighted-average shares of common stock outstanding, basic and diluted

FOR THE YEARS ENDED
DECEMBER 31,

2019

2018

17,066   
17,066   

$

– 
– 

(4,889,340)  
(4,731,176)  
(3,283,379)  
(12,903,895)  
(12,886,829)  

3,315   
108,489   
111,804   

(2,883,952)
(4,392,375)
– 
(7,276,327)
(7,276,327)

(24,640)
509 
(24,131)

(12,775,025)  

(7,300,458)

(5,284,379)  

(18,059,404)  

(6.33)  

2,852,464   

$

$

– 

(7,300,458)

(9.66)

756,015 

$

$

$

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

F-3

 
 
 
 
 
 
 
 
   
 
 
    
  
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
    
 
  
 
 
 
 
    
 
  
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
XENETIC BIOSCIENCES, INC.
 CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

Preferred Stock

Common Stock

Number
of
Shares
    3,090,742 
– 

Par
Value
($0.001)

Number
of
Shares

Par
Value
($0.001)

  $

3,090 
– 

753,659 
30,834 

  $

(316,348)    

– 
– 
– 
    2,774,394 

  $

(316)  
– 
– 
– 
2,774 

26,363 
– 
– 
– 
810,856 

  $

Additional
Paid in
Capital
  $ 165,258,198 
1,479,969 

290 
1,362,079 
69,708 
– 
  $ 168,170,244 

754 
31 

26 
– 
– 
– 
811 

Accumulated
Other
Comprehensive
Income
(Loss)

Treasury
Stock

Accumulated
Deficit

  $ (5,281,180)   $

Total
Stockholders'
Equity
14,301,459 
1,480,000 

  $ (145,933,137)   $

– 

– 
– 
– 

(7,300,458)  

  $ (153,233,595)   $

253,734 
– 

– 
– 
– 
– 
253,734 

– 

– 
– 
– 
– 

Balance as of January 1, 2018
Exercise of warrants
Conversion of Series B preferred stock to shares of

common stock

Share-based expense
Common stock awards to vendors
Net loss
Balance as of December 31, 2018
Issuance of common stock and warrants in March
2019 registered direct offering, net of issuance
costs

Issuance of common stock and warrants in July
2019 public offering, net of issuance costs
Issuance of common stock in connection with

purchase of in-process research and development    

Exercise of pre-funded warrants
Exercise of purchase warrants
Issuance of common stock to vendor
Issuance of warrants in connection with reverse

stock split

Issuance of common stock to adjust for reverse

split rounding

Deemed dividend related to Series B Preferred

Stock down round provision

Accretion of deemed dividend related to Series B

Preferred Stock down round provision

– 

– 

– 
– 
– 
– 

– 

– 

– 

– 

– 

– 

– 
– 
– 
– 

– 

– 

– 

– 

86,667 

87 

2,698,963 

  1,746,666 

1,747 

13,420,203 

624,995 
612,417 
  2,201,553 
7,836 

– 

1,442 

– 

– 

625 
612 
2,202 
7 

– 

1 

– 

– 

3,030,601 
5,597 
(2,202)  
(7)  

63,536 

(1)  

5,284,379 

(5,284,379)  

Share-based expense
Common stock awards to vendors
Net loss
Balance as of December 31, 2019

– 
– 
– 
    2,774,394 

  $

– 
– 
– 
2,774 

– 
– 
– 
  6,092,432 

  $

– 
– 
– 
6,092 

806,090 
47,427 
– 
  $ 188,240,451 

(12,775,025)  
  $ (166,008,620)   $

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

F-4

– 
1,362,079 
69,708 
(7,300,458)
9,912,788 

2,699,050 

13,421,950 

3,031,226 
6,209 
– 
– 

63,536 

– 

5,284,379 

(5,284,379)

806,090 
47,427 
(12,775,025)
17,213,251 

  $ (5,281,180)   $

– 

– 

– 
– 
– 
– 

– 

– 

– 

– 

– 
– 
– 
253,734 

– 

– 

– 
– 
– 
– 

– 

– 

– 

– 

– 
– 
– 

  $ (5,281,180)   $

– 

– 

– 
– 
– 
– 

– 

– 

– 

– 

– 
– 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
XENETIC BIOSCIENCES, INC.
 CONSOLIDATED STATEMENTS OF CASH FLOWS

CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss

Adjustments to reconcile net loss to net cash used in operating activities:

Acquired in-process research and development
Goodwill impairment
Depreciation
Amortization of right of use asset
Gain on sale of property and equipment
Share-based expense
Vendor share-based payments
Issuance of warrants in connection with reverse stock split
Changes in operating assets and liabilities:

Prepaid expenses and other assets
Accounts payable, accrued expenses and other liabilities

Net cash used in operating activities

CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sale of property and equipment

Net cash provided by investing activities

CASH FLOWS FROM FINANCING ACTIVITIES:

Net proceeds from issuance of common stock and warrants in July 2019 public offering
Net proceeds from issuance of common stock and warrants in March 2019 registered direct offering
Proceeds from exercise of warrants
Net cash provided by financing activities

Net change in cash and restricted cash
Cash and restricted cash at beginning of period

Cash and restricted cash at end of period

SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid for interest

SUPPLEMENTAL SCHEDULE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:

Right-of-use assets obtained in exchange for lease obligations
Issuance of common stock to vendor
Issuance of common stock to acquire in-process research and development
Issuance of common stock to adjust for Reverse Stock Split
Issuance of common stock from cashless exercise of purchase warrants
Conversion of Series B preferred stock to common stock

FOR THE YEARS ENDED 
DECEMBER 31,

2019

2018

$

(12,775,025)  

$

(7,300,458)

3,031,226   
3,283,379   
4,199   
23,288   
(2,000)  
806,090   
47,427   
63,536   

(653,563)  
(227,961)  
(6,399,404)  

2,000   
2,000   

13,421,950   
2,699,050   
6,209   
16,127,209   

9,729,805   
638,115   

– 
– 
15,827 
– 
(15,437)
1,362,079 
69,708 
– 

(251,798)
(343,878)
(6,463,957)

22,500 
22,500 

– 
– 
1,480,000 
1,480,000 

(4,961,457)
5,599,572 

$

$

$
$
$
$
$
$

10,367,920   

$

638,115 

8   

$

43,330   
7   
3,031,226   
1   
2,202   
–   

$
$
$
$
$
$

599 

– 
– 
– 
– 
– 
316 

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

F-5

 
 
 
 
 
 
 
 
   
 
 
 
    
 
  
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
    
 
  
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
XENETIC BIOSCIENCES, INC.
 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.

The Company

Background

Xenetic  Biosciences,  Inc.  (“Xenetic”  or  the  “Company”),  incorporated  in  the  state  of  Nevada  and  based  in  Framingham,  Massachusetts,  is  a  biopharmaceutical  company
focused on advancing XCART ™, a personalized Chimeric Antigen Receptor (“CAR”) T cell platform technology engineered to target patient-specific tumor neoantigens. The
Company is initially advancing cell-based therapeutics targeting the unique B-cell receptor on the surface of an individual patient’s malignant tumor cells, for the treatment of
B-cell  lymphomas.  The  XCART  technology,  developed  by  the  Scripps  Research  Institute  (the  “Institute”)  in  collaboration  with  the  Shemyakin-Ovchinnikov  Institute  of
Bioorganic Chemistry (“IBCH”), is believed to have the potential to significantly enhance the safety and efficacy of cell therapy for B-cell lymphomas by generating patient-
and  tumor-specific  CAR  T  cells.  On  March  1,  2019,  the  Company  entered  into  agreements  with  Hesperix  S.A.  (“Hesperix”)  and  Opko  Pharmaceuticals  LLC  (“OPKO”)  to
acquire the XCART technology (the “Transaction”) and closed the Transaction on July 19, 2019 concurrent with the completion of an approximate $15 million public offering
(the “Offering”). For additional information regarding the Transaction, see Note 4 – Acquisitions.

Additionally, Xenetic is leveraging its proprietary drug delivery platform, PolyXen®, by partnering with biotechnology and pharmaceutical companies. PolyXen is an enabling
platform technology which can be applied to protein or peptide therapeutics. It employs the natural polymer polysialic acid (“PSA”) to prolong a drug's circulating half-life and
potentially  improve  other  pharmacological  properties.  Xenetic  incorporates  its  patented  and  proprietary  technologies  into  a  number  of  drug  candidates  currently  under
development  with  biotechnology  and  pharmaceutical  industry  collaborators  to  create  what  the  Company  believes  will  be  the  next-generation  biologic  drugs  with  improved
pharmacological properties over existing therapeutics.

The  Company,  directly  or  indirectly,  through  its  wholly-owned  subsidiaries,  Hesperix  and  Xenetic  Biosciences  (U.K.)  Limited  (“Xenetic  UK”),  and  the  wholly-owned
subsidiaries of Xenetic UK, Lipoxen Technologies Limited (“Lipoxen”), Xenetic Bioscience, Incorporated and SymbioTec, GmbH (“SymbioTec”), owns various United States
(“U.S.”)  federal  trademark  registrations  and  applications,  and  unregistered  trademarks  and  service  marks,  including  but  not  limited  to  XCART,  OncoHist™,  PolyXen,
ErepoXen™, and ImuXen™, which are used throughout this Annual Report. All other company and product names may be trademarks of the respective companies with which
they are associated.

Going Concern and Management’s Plan

Management  evaluates  whether  there  are  conditions  or  events,  considered  in  the  aggregate,  that  raise  substantial  doubt  about  the  Company’s  ability  to  continue  as  a  going
concern within one year after the date that the financial statements are issued. The Company has incurred substantial losses since its inception and expects to continue to incur
operating  losses  in  the  near-term.  These  factors  raise  substantial  doubt  about  its  ability  to  continue  as  a  going  concern.  The  Company  believes  that  it  has  access  to  capital
resources through possible public or private equity offerings, debt financings, corporate collaborations, related party funding, or other means to continue as a going concern. On
March 7, 2019, the Company closed on a $3.1 million registered direct Common Stock offering resulting in $2.7 million of net proceeds to the Company. On July 19, 2019, the
Company completed the Offering resulting in $13.4 million of net proceeds to the Company. The Company believes that these financings, coupled with the Company’s existing
resources, will be adequate to fund the Company’s operations through mid-2021. However, the Company anticipates it may need additional capital in the long-term to pursue its
business initiatives. The terms, timing and extent of any future financing will depend upon several factors, including the achievement of progress in its clinical development
programs, its ability to identify and enter into licensing or other strategic arrangements, and factors related to financial, economic and market conditions, many of which are
beyond its control.

F-6

 
 
 
 
 
 
 
 
 
 
 
 
 
 
2.

Summary of Significant Accounting Policies

Preparation of Financial Statements

On  June  25,  2019,  the  Company  effected  a  reduction,  on  a  1  for  12  basis,  in  its  authorized  Common  Stock,  par  value  $0.001,  along  with  a  corresponding  and  proportional
decrease in the number of shares issued and outstanding. On the effective date of the reverse stock split, (i) every 12 shares of Common Stock were reduced to one share of
Common Stock, with any fractional amounts rounded up to one share; (ii) the number of shares of Common Stock into which each outstanding warrant, restricted stock unit, or
option  to  purchase  Common  Stock  were  proportionately  reduced  on  the  same  basis  as  the  Common  Stock;  (iii)  the  exercise  price  of  each  outstanding  warrant  or  option  to
purchase Common Stock were proportionately increased on a 1-to-12 basis; and (iv) the number of shares of Common Stock into which each share of Preferred Stock were
proportionately reduced on the same basis as the Common Stock. All of the share numbers, share prices, and exercise prices have been adjusted, on a retroactive basis, to reflect
this 1-for-12 reverse stock split.

Certain prior period amounts have been reclassified to conform to the presentation for the current period.

Principles of Consolidation

The  consolidated  financial  statements  of  the  Company  include  the  accounts  of  Hesperix,  Xenetic  UK  and  Xenetic  UK’s  wholly-owned  subsidiaries:  Lipoxen,  Xenetic
Bioscience, Incorporated, and SymbioTec. All material intercompany balances and transactions have been eliminated in consolidation.

Use of Estimates

The consolidated financial statements and accompanying notes are prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”). The preparation
of the financial statements in accordance with U.S. GAAP requires management to make estimates, judgments and assumptions that affect the reported amounts of assets and
liabilities, the reported amounts of revenue, costs and expenses in the financial statements and disclosures in the accompanying notes. Actual results and outcomes may differ
materially from management’s estimates, judgments and assumptions.

Functional Currency Change

The functional currency for the Company’s Switzerland-based subsidiary is the U.S. dollar. The functional currency of the Company’s UK-based subsidiaries changed from the
British Pound Sterling to the U.S. dollar. The change in functional currency was applied on a prospective basis. Therefore, any gains and losses that were previously recorded in
accumulated other comprehensive income remain unchanged.

Foreign Currency Transactions

Realized and unrealized gains and losses resulting from foreign currency transactions arising from exchange rate fluctuations on balances denominated in currencies other than
the functional currencies are recognized in “Other income (expense)” in the consolidated statements of comprehensive loss. Monetary assets and liabilities that are denominated
in a currency other than the functional currency are re-measured to the functional currency using the exchange rate at the balance sheet date and gains or losses are recorded in
the consolidated statements of comprehensive loss.

F-7

 
  
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
Fair Value of Financial Instruments

The  Company  applies  the  following  fair  value  hierarchy,  which  prioritizes  the  inputs  used  to  measure  fair  value  into  three  levels  and  bases  the  categorization  within  the
hierarchy upon the lowest level of input that is available and significant to the fair value measurement. Level 1 inputs are quoted prices in active markets for identical assets or
liabilities  that  the  reporting  entity  has  the  ability  to  access  at  the  measurement  date.  Level  2  utilizes  quoted  market  prices  in  markets  that  are  not  active,  broker  or  dealer
quotations, or alternative pricing sources with reasonable levels of price transparency. Level 3 inputs are unobservable inputs for the asset or liability in which there is little, if
any, market activity for the asset or liability at the measurement date. See Note 8, Fair Value Measurements, for discussion of the Company’s fair value measurements.

Cash

The Company considers all highly liquid investments with maturities of 90 days or less from the date of purchase to be cash equivalents. Investments with original maturities of
greater than 90 days from the date of purchase but less than one year from the balance sheet date are classified as short-term investments, while investments with maturities of
one  year  or  beyond  from  the  balance  sheet  date  are  classified  as  long-term  investments.  Management  determines  the  appropriate  classification  of  its  cash  equivalents  and
investment securities at the time of purchase and re-evaluates such determination as of each balance sheet date.

Restricted Cash

As of December 31, 2018 restricted cash represented a certificate of deposit that secured the Company’s outstanding letter of credit of approximately $0.1 million for its former
operating lease in Lexington, Massachusetts (the “Lexington Lease”). The Lexington Lease expired in January 2019 and the letter of credit terminated in May 2019.

The following table provides a reconciliation of cash and restricted cash reported in the consolidated balance sheets to the total of the amounts in the consolidated statement of
cash flows:

Cash
Restricted cash
Total cash and restricted cash in the statement of cash flows

Concentration of Credit Risk

December 31,
2019

December 31,
2018

$

$

10,367,920   
–   
10,367,920   

$

$

571,605 
66,510 
638,115 

Financial  instruments  that  subject  the  Company  to  concentrations  of  credit  risk  include  cash.  The  Company  maintains  cash  with  various  major  financial  institutions  that
management believes are of high credit quality.

Property and Equipment

The Company records property and equipment at cost less accumulated depreciation. Expenditures for major renewals and improvements which extend the life or usefulness of
the asset are capitalized. Items of an ordinary repair or maintenance nature are charged directly to operating expense as incurred. The Company calculates depreciation using the
straight-line method over the estimated useful lives of the assets:

Asset Classification
Laboratory equipment
Office and computer equipment
Leasehold improvements
Furniture and fixtures

Estimated Useful Life

3 years
3 years
5 years or the remaining term of the lease, if shorter
5 years

The Company eliminates the cost of assets retired or otherwise disposed of, along with the corresponding accumulated depreciation, from the related accounts, and the resulting
gain or loss is reflected in the results of operations.

F-8

 
 
 
  
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
Indefinite-Lived Intangible Assets

Acquired indefinite-lived intangible assets consist of in-process research and development (“IPR&D”) related to the Company’s business combination with SymbioTec, which
was recorded at fair value on the acquisition date. At acquisition, we generally determine the fair value of intangible assets, including IPR&D, using the “income method.”
IPR&D intangible assets are considered indefinite-lived intangible assets and are not amortized until completion or abandonment of the associated research and development
efforts.  Substantial  additional  research  and  development  may  be  required  before  the  Company’s  IPR&D  reaches  technological  feasibility.  Upon  completion  of  the  IPR&D
project, the IPR&D assets will be amortized over their estimated useful lives.

IPR&D is not amortized but is reviewed for impairment at least annually as of October 1, or when events or changes in the business environment indicate the carrying value
may  be  impaired.  The Company  also  has  the  option  to  first  assess  qualitative  factors  to  determine  whether  the  existence  of  events  or circumstances  leads  the  Company  to
determine that it is more likely than not (that is, a likelihood of more than 50%) that the acquired IPR&D is impaired. If the Company chooses to first assess the qualitative
factors  and  it  is  determined  that  it  is  not  more  likely  than  not  acquired  IPR&D  is  impaired,  the  Company  is  not  required  to  take  further  action  to  test  for  impairment.  The
Company  also  has  the  option  to  bypass  the  qualitative  assessment  and  perform  only  the  quantitative  impairment  test,  which  the  Company  may  choose  to  perform  in  some
periods but not in others.

The impairment loss, if any, is measured as the excess of the carrying value of the intangible asset over its fair value. During 2019 and 2018, we used the quantitative method
and determined that the fair value of the indefinite-lived intangible assets exceeded its carrying value as October 1, 2019 and 2018.

Intangible assets are highly vulnerable to impairment charges, particularly newly acquired assets for IPR&D. Considering the high risk nature of research and development and
the  industry’s  success  rate  of  bringing  developmental  compounds  to  market,  IPR&D  impairment  charges  are  likely  to  occur  in  future  periods.  Estimating  the  fair  value  of
IPR&D for potential impairment is highly sensitive to changes in projections and assumptions and changes to assumptions could potentially lead to impairment. The Company’s
estimates and assumptions are reasonable and otherwise consistent with assumptions market participants would use in their estimates of fair value. However, if future results are
not  consistent  with  the  Company’s  estimates  and  assumptions,  then  we  may  be  exposed  to  an  impairment  charge,  which  could  be  material.  Use  of  different  estimates  and
judgments could yield materially different results in our analysis and could result in materially different asset values or expense.

Goodwill

Goodwill is comprised of the purchase price of business combinations in excess of the fair value assigned at acquisition to the net tangible and identifiable intangible assets
acquired. Goodwill is not amortized. The Company assesses goodwill for impairment at least annually, or when events or changes in the business environment indicate the
carrying value may not be fully recoverable. The Company also has the option to first assess qualitative factors to determine whether the existence of events or circumstances
leads  the  Company  to  determine  that  it  is  more  likely  than  not  (that  is,  a  likelihood  of  more  than  50%)  that  goodwill  is  impaired.  If  the  Company  chooses  to  first  assess
qualitative factors and it is determined that it is not more likely than not goodwill is impaired, the Company is not required to take further action to test for impairment. The
Company also has the option to bypass the qualitative assessment and perform only the quantitative impairment test, which the Company may choose to do in some periods but
not in others. The Company historically had performed its annual impairment review as of October 1 at the reporting unit level. Goodwill may be considered impaired if the
carrying value of the reporting unit, including goodwill, exceeds the reporting unit’s fair value. The Company is comprised of one reporting unit. The Company determined that
Goodwill was impaired during the year ended December 31, 2019. See Note 6 Goodwill, Indefinite-Lived Intangible Assets and Other Long-term Assets.

F-9

 
 
 
 
 
 
 
 
 
 
 
 
 
Impairment of Long-Lived Assets

The Company reviews long-lived assets to be held and used, including property and equipment, for impairment whenever events or changes in circumstances indicate that the
carrying amount of the assets or asset group may not be fully recoverable. No such impairments were recorded during the years ended December 31, 2019 and 2018.

Evaluation of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset or asset group and its eventual disposition. Impairment,
if any, is calculated as the amount by which an asset’s carrying value exceeds its fair value, typically using discounted cash flows to determine fair value.

Revenue Recognition

The Company enters into supply, license and collaboration arrangements with pharmaceutical and biotechnology partners, some of which include royalty agreements based on
potential net sales of approved commercial pharmaceutical products.

Effective  January  1,  2018,  the  Company  adopted Accounting  Standards  Codification  (“ASC”)  Topic  606, Revenue  from  Contracts  with  Customers  (“ASC  606”),  using  the
modified retrospective transition method. Under this method, results for reporting periods beginning after January 1, 2018 are presented under ASC 606, while prior period
amounts  are  not  adjusted.  This  standard  applies  to  all  contracts  with  customers,  except  for  contracts  that  are  within  the  scope  of  other  standards,  such  as  leases,  insurance,
collaboration  arrangements  and  financial  instruments.  The  Company  did  not  have  any  revenue  generating  contracts  with  customers  and,  therefore,  the  adoption  of  this  new
revenue standard did not have a material impact on the consolidated financial statements. Under ASC 606, an entity recognizes revenue when its customer obtains control of
promised  goods  or  services,  in  an  amount  that  reflects  the  consideration  which  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 at a point in time, or over time, as it satisfies a performance obligation. The Company only applies the five-step model to contracts when it is probable that
it will collect the consideration it is entitled to in exchange for the goods or services it transfers to the customer. At contract inception, once the contract is determined to be
within the scope of ASC 606, the Company assesses the goods or services promised within each contract, determine those that are performance obligations, and assess whether
each promised good or service is distinct. The Company then recognizes as revenue the amount of the transaction price that is allocated to the respective performance obligation
when (or as) the performance obligation is satisfied.

As  part  of  the  accounting  for  these  arrangements,  the  Company  must  use  significant  judgment  to  determine:  a)  the  number  of  performance  obligations  based  on  the
determination under step (ii) above; b) the transaction price under step (iii) above; and c) the stand-alone selling price for each performance obligation identified in the contract
for the allocation of transaction price in step (iv) above. The Company uses judgment to determine whether milestones or other variable consideration should be included in the
transaction  price  as  described  further  below.  The  transaction  price  is  allocated  to  each  performance  obligation  on  a  relative  stand-alone  selling  price  basis,  for  which  the
Company  recognizes  revenue  as  or  when  the  performance  obligations  under  the  contract  are  satisfied.  In  developing  the  stand-alone  price  for  a  performance  obligation,  the
Company considers applicable market conditions and relevant entity-specific factors, including factors that were contemplated in negotiating the agreement with the customer
and estimated costs. The Company validates the stand-alone selling price for performance obligations by evaluating whether changes in the key assumptions used to determine
the stand-alone selling prices will have a significant effect on the allocation of transaction price between multiple performance obligations. The Company recognizes a contract
asset  or  liability  for  the  difference  between  the  Company’s  performance  (i.e.,  the  goods  or  services  transferred  to  the  customer)  and  the  customer’s  performance  (i.e.,  the
consideration paid by, and unconditionally due from, the customer).

F-10

 
  
 
 
 
 
 
 
 
 
 
 
 
The terms of the Company’s license agreements may include delivery of an IP license to a collaboration partner. The Company may be compensated under license arrangements
through a combination of non-refundable upfront receipts, development and regulatory objective receipts and royalty receipts on future product sales by partners. The Company
anticipates recognizing non-refundable upfront license payments and development and regulatory milestone payments received by the Company in license and collaboration
arrangements  that  include  future  obligations,  such  as  supply  obligations,  ratably  over  the  Company’s  expected  performance  period  under  each  respective  arrangement.  The
Company  makes  its  best  estimate  of  the  period  over  which  the  Company  expects  to  fulfill  the  Company’s  performance  obligations,  which  may  include  technology  transfer
assistance,  research  activities,  clinical  development  activities,  and  manufacturing  activities  from  development  through  the  commercialization  of  the  product.  Given  the
uncertainties of these collaboration arrangements, significant judgment is required to determine the duration of the performance period.

When the Company enters into an arrangement to sublicense some of its patents, it will consider the performance obligations to determine if there is a single element or multiple
elements  to  the  arrangement  as  it  determines  the  proper  method  and  timing  of  revenue  recognition.  The  Company  considers  the  terms  of  the  license  or  sublicense  for  such
elements as price adjustments or refund clauses in addition to any performance obligations for it to provide such as services, patent defense costs, technology support, marketing
or sales assistance or any other elements to the arrangement that could constitute an additional deliverable to it that could change the timing of the revenue recognition. Non-
refundable  upfront  license  and  sublicense  fees  received,  whereby  continued  performance  or  future  obligations  are  considered  inconsequential  or  perfunctory  to  the  relevant
licensed technology, are recognized as revenue upon delivery of the technology.

The Company expects to recognize royalty revenue in the period of sale, based on the underlying contract terms, provided that the reported sales are reliably measurable, the
Company has no remaining performance obligations, and all other revenue recognition criteria are met.

The  Company  anticipates  reimbursements  for  research  and  development  services  completed  by  the  Company  related  to  the  collaboration  agreements  to  be  recognized  in
operations as revenue on a gross basis.

The Company’s license and collaboration agreements with certain collaboration partners could also provide for future milestone receipts to the Company based solely upon the
performance of the respective collaboration partner in consideration of deadline extensions or upon the achievement of specified sales volumes of approved drugs. For such
receipts, the Company expects to recognize the receipts as revenue when earned under the applicable contract terms on a performance basis or ratably over the term of the
agreement. These receipts may also be recognized as revenue when continued performance or future obligations by the Company are considered inconsequential or perfunctory.

See also Note 3, Significant Strategic Drug Development Collaborations – Related Parties.

Research and Development Expenses

Research and development expenses consist of expenses incurred in performing research and development activities, including compensation and benefits, facilities expenses,
overhead expenses, clinical trial and related clinical manufacturing expenses, fees paid to contract research organizations (“CROs”) and contract manufacturing organizations
and other outside expenses. The Company expenses research and development costs as incurred. The Company expenses upfront, non-refundable payments made for research
and development services as obligations are incurred. The value ascribed to intangible assets acquired but which have not met capitalization criteria is expensed as research and
development at the time of acquisition.

F-11

 
  
 
 
 
 
  
 
 
  
 
 
 
 
The Company is required to estimate accrued research and development expenses at each reporting period. This process involves reviewing open contracts and purchase orders,
communicating  with  Company  personnel  to  identify  services  that  have  been  performed  on  its  behalf  and  estimating  the  level  of  service  performed  and  the  associated  cost
incurred for the service when the Company has not yet been invoiced or otherwise notified of actual costs. The majority of the Company’s service providers invoice in arrears
for services performed, on a pre-determined schedule or when contractual milestones are met. However, some require advanced payments. The Company makes estimates of
accrued  expenses  as  of  each  balance  sheet  date  in  the  financial  statements  based  on  facts  and  circumstances  known  at  that  time.  The  Company  periodically  confirms  the
accuracy of the estimates with the service providers and makes adjustments, if necessary. Examples of estimated accrued research and development expenses include fees paid
to:

·
·
·

Program managers in connection with overall program management of clinical trials;
CROs in connection with clinical trials; and
Investigative sites in connection with clinical trials.

The Company bases its expenses related to clinical trials on its estimates of the services received and efforts expended pursuant to quotes and contracts with multiple research
institutions and CROs that conduct and manage clinical trials on the Company’s behalf. The financial terms of these agreements are subject to negotiation, vary from contract to
contract  and  may  result  in  uneven  payment  flows.  There  may  be  instances  in  which  payments  made  to  vendors  will  exceed  the  level  of  services  provided  and  result  in  a
prepayment of the expense. In accruing service fees, the Company estimates the time period over which services will be performed and the level of effort to be expended in each
period. If the actual timing of the performance of services or the level of effort varies from the estimate, the Company adjusts the accrual or prepaid accordingly. Although it
does not expect its estimates to be materially different from amounts actually incurred, the Company’s understanding of the status and timing of services performed relative to
the actual status and timing of services performed may vary and may result in reporting amounts that are too high or too low in any particular period. To date, there have not
been  any  material  adjustments  to  the  Company’s  prior  estimates  of  accrued  research  and  development  expenses. As  of  December  31,  2019  and  2018,  the  Company  has
recorded accrued program expense of approximately $0.1 million and $0.2 million, respectively, as a component of accrued expenses. In addition, the Company has recorded
approximately $0.7 million of deposits held with our clinical trial vendors as a component of prepaid expenses and other current assets as of December 31, 2019 and 2018.

Share-based Expense

Stock options and restricted stock units

The Company grants share-based payments in the form of options and restricted stock units (“RSUs”) to employees and non-employees, Joint Share Ownership Plan (“JSOP”)
awards to employees, as well as agreements to issue Common Stock in exchange for services provided by non-employees.

Share-based expense is based on the estimated fair value of the option or calculated using the Black-Scholes option pricing model. Determining the appropriate fair value model
and related assumptions requires judgment, including estimating share price volatility and expected terms of the awards. The expected volatility rates are estimated based on the
historical volatility of the Company. To the extent Company data is not available for the full expected term of the awards the Company uses a weighted-average of the historical
volatility of the Company and of a peer group of comparable publicly traded companies over the expected term of the option. The expected terms represent the time that options
are expected to be outstanding. The Company accounts for forfeitures as they occur and not at the time of grant. The Company has not paid dividends and does not anticipate
paying  cash  dividends  in  the  foreseeable  future  and,  accordingly,  uses  an  expected  dividend  yield  of  zero.  The  risk-free  interest  rate  is  based  on  the  rate  of  U.S.  Treasury
securities with maturities consistent with the estimated expected term of the awards. Upon exercise, stock options are redeemed for newly issued shares of Common Stock.
RSUs are redeemed for newly issued shares of Common Stock as the vesting and settlement provisions of the grant are met.

F-12

 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
For employee options that vest based solely on service conditions, the fair value measurement date is generally on the date of grant and the related compensation expense is
recognized on a straight-line basis over the requisite vesting period of the awards.

For non-employee options, the fair value measurement date is the earlier of the date the performance of services is complete or the date the performance commitment has been
reached.  The  Company  generally  determines  that  the  fair  value  of  the  stock  options  is  more  reliably  measurable  than  the  fair  value  of  the  services  received.  Compensation
expense related to stock options granted to non-employees that vest based solely on service conditions is subject to re-measurement at each reporting period until the options
vest  and  is  recognized  on  a  straight-line  basis  over  the  requisite  vesting  period  of  the  awards.    In  June  2018,  the  Financial Accounting  Standards  Board  (“FASB”)  issued
Accounting Standards Update (“ASU”) 2018-07,  Compensation  –  Stock  Compensation  (Topic  718):  Improvements  to  Nonemployee  Share-Based  Payment  Accounting. ASU
2018-07  expanded  the  scope  of  Topic  718  to  include  share-based  payment  transactions  for  acquiring  goods  and  services  from  nonemployees. An  entity  should  apply  the
requirements of Topic 718 to nonemployee awards except for specific guidance on inputs to an option pricing model and the attribution of cost. ASU 2018-07 specifies that
Topic 718 applies to all share-based payment transactions in which a grantor acquires goods or services to be used or consumed in a grantor’s own operations by issuing share-
based payment awards, and that Topic 718 does not apply to share-based payments used to effectively provide (1) financing to the issuer or (2) awards granted in conjunction
with selling goods or services to customers as part of a contract accounted for under Topic 606 Revenue from Contracts with Customers. ASU 2018-07 was effective for the
Company in the first quarter of fiscal 2019. Adoption of this standard did not have a material impact on the Company’s consolidated financial statements. As a result of the
adoption of ASU 2018-07, compensation expense related to stock options granted to non-employees is no longer remeasured at each reporting period.  

Common stock awards

The Company grants Common Stock awards to non-employees in exchange for services provided. The Company measures the fair value of these awards using the fair value of
the services provided, as this provides the most reliable measure of the fair value of the awards granted. The fair value measurement date of these awards is generally the date
the  performance  of  services  is  complete.  The  fair  value  of  the  awards  is  recognized  on  a  straight-line  basis  as  services  are  rendered.  The  share-based  payments  related  to
Common  Stock  awards  for  the  settlement  of  services  provided  by  non-employees  is  recorded  on  the  consolidated  statement  of  comprehensive  loss  in  the  same  manner  and
charged to the same account as if such settlements had been made in cash.

Warrants

In connection with certain financing, consulting and collaboration arrangements, the Company has issued warrants to purchase shares of its Common Stock. The outstanding
warrants are standalone instruments that are not puttable or mandatorily redeemable by the holder and are classified as equity awards. The Company measures the fair value of
the awards using the Black-Scholes option pricing model as of the measurement date. Warrants issued to collaboration partners in conjunction with the issuance of Common
Stock are initially recorded at fair value as a reduction in additional paid-in capital of the Common Stock issued. All other warrants are recorded at fair value as expense on a
straight-line  basis  over  the  requisite  service  period  or  at  the  date  of  issuance  if  there  is  not  a  service  period  or  if  service  has  already  been  rendered.  Warrants  granted  in
connection with ongoing arrangements are more fully described in Note 10, Stockholders’ Equity.

Income Taxes

The  Company  accounts  for  income  taxes  using  the  asset  and  liability  method.  Under  this  method,  deferred  tax  assets  and  liabilities  are  determined  based  on  temporary
differences  resulting  from  the  different  treatment  of  items  for  tax  and  financial  reporting  purposes.  Deferred  tax  assets  and  liabilities  are  measured  using  enacted  tax  rates
expected  to  apply  to  taxable  income  in  the  years  in  which  those  temporary  differences  are  expected  to  reverse. Additionally,  the  Company  must  assess  the  likelihood  that
deferred tax assets will be recovered as deductions from future taxable income. The Company evaluates the recoverability of its deferred tax assets on a quarterly basis.

F-13

 
 
 
 
 
  
 
 
 
 
 
 
 
 
Basic and Diluted Net Loss per Share

The  Company  computes  basic  net  loss  per  share  by  dividing  net  loss  applicable  to  common  stockholders  by  the  weighted-average  number  of  shares  of  Common  Stock
outstanding during the period. The Company computes diluted net loss per share after giving consideration to the dilutive effect of stock options that are outstanding during the
period, except where such non-participating securities would be anti-dilutive. The Company’s JSOP awards, prior to exercise, are considered treasury shares by the Company
and thus do not impact the Company’s net loss per share calculation. As of December 31, 2019 and 2018, there were approximately 27,000 JSOP awards issued.

For the years ended December 31, 2019 and 2018, basic and diluted net loss per share are the same for each year due to the Company’s net loss position. Potentially dilutive,
non-participating securities have not been included in the calculations of diluted net loss per share, as their inclusion would be anti-dilutive. As of December 31, 2019 and 2018,
approximately 516,000 and 65,000 potentially dilutive securities, respectively, were deemed anti-dilutive.

Segment Information

Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision
maker,  who  is  the  Company’s  Chief  Executive  Officer,  in  making  decisions  on  how  to  allocate  resources  and  assess  performance.  The  Company  views  its  operations  and
manages its business in one operating segment.

Leases

The Company leases administrative facilities under operating leases. Lease agreements may include rent holidays, rent escalation clauses and tenant improvement allowances.
In February 2016, FASB issued ASU 2016-02,  Leases (Topic 842). ASU 2016-02 requires lessees to recognize a lease liability and a right-of-use asset for all leases, with the
exception  of  short-term  leases,  at  the  commencement  date.  This  guidance  is  effective  for  annual  reporting  periods  beginning  after  December  15,  2018,  including  interim
periods  within  those  annual  periods.  Subsequently,  in  July  2018,  the  FASB  issued ASU  2018-11,  Lease  (Topic  842):  Targeted  Improvements,  which  provides  a  number  of
practical expedients in transition. The Company adopted ASU 2016-02 effective January 1, 2019 and elected a package of practical expedients and the new transition approach
permitted by ASU 2018-11. ASU 2018-11 allows the Company not to reassess existing identification of a lease, classification of a lease or any initial direct costs. The Company
has  also  elected  to  use  the  hindsight  practical  expedients.  The  adoption  did  not  have  a  material  impact  on  the  Company’s  consolidated  financial  statements,  resulted  in  an
approximate $43,000 increase in total assets and total liabilities in our consolidated balance sheet and did not have any effect on our accumulated deficit at the beginning of
2019. See Note 13, Commitments and Contingent Liabilities for further information.

Acquisitions

The Company has a history of engaging in acquisition transactions that require the Company to evaluate whether the transaction meets the criteria of a business combination
and, in some cases, whether it meets the definition of a reverse merger. If the transaction does not meet the business combination requirements, the transaction is accounted for
as an asset acquisition or recapitalization and no goodwill is recognized. If the acquisition meets the definition of a business combination, the Company allocates the purchase
price, including any contingent consideration, to the assets acquired and the liabilities assumed at their estimated fair values as of the date of the acquisition with any excess of
the  purchase  price  paid  over  the  estimated  fair  value  of  net  assets  acquired  recorded  as  goodwill.  The  fair  value  of  the  assets  acquired  and  liabilities  assumed  is  typically
determined by using either estimates of replacement costs or discounted cash flow valuation methods.

F-14

 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
When determining the fair value of tangible assets acquired, the Company estimates the cost to replace the asset with a new asset, taking into consideration such factors as age,
condition  and  the  economic  useful  life  of  the  asset.  When  determining  the  fair  value  of  intangible  assets  acquired,  the  Company  uses  judgment  to  estimate  the  applicable
discount rate, growth rates and the timing and amount of future cash flows. The fair value of assets acquired and liabilities assumed is typically determined using the assistance
of an independent third-party specialist.

Business combination related costs are expensed in the period in which the costs are incurred. Asset acquisition related costs are generally capitalized as a component of cost of
the assets acquired.

Recent Accounting Standards

In  November  2018,  the  FASB  issued ASU  2018-18, Clarifying  the  Interaction  between  Topic  808  and  Topic  606 .  The  guidance  clarifies  that  certain  transactions  between
collaborative arrangement participants should be accounted for as revenue under ASC 606 when the collaborative arrangement participant is a customer for a promised good or
service  that  is  distinct  within  the  collaborative  arrangement.  The  guidance  also  precludes  entities  from  presenting  amounts  related  to  transactions  with  a  collaborative
arrangement participant that is not a customer as revenue, unless those transactions are directly related to third-party sales. ASU 2018-18 is effective in the first quarter of 2020
and should be applied retrospectively to January 1, 2018, when we adopted ASC 606. Early adoption is permitted. We are evaluating the effect of adoption, but we do not
expect a material effect on our revenue.

In  June  2016,  the  FASB  issued ASU  2016-13, Financial  Instruments  -  Credit  Losses  (Topic  326):  Measurement  of  Credit  Losses  on  Financial  Instruments.  The  guidance
modifies  the  measurement  and  recognition  of  credit  losses  for  most  financial  assets  and  certain  other  instruments.  The  amendment  updates  the  guidance  for  measuring  and
recording  credit  losses  on  financial  assets  measured  at  amortized  cost  by  replacing  the  “incurred  loss”  model  with  an  “expected  loss”  model.  This  may  result  in  earlier
recognition of allowance for losses. ASU 2016-13 is effective for public entities for fiscal years beginning after December 15, 2019 but early adoption is permitted. We are
currently evaluating the impact of adoption, but we do not anticipate that it will have a material effect on our consolidated financial statements.

3.

Significant Strategic Drug Development Collaborations – Related Parties

Takeda Pharmaceutical Co. Ltd., (“Takeda”) (formerly Shire plc)

The Company is party to an exclusive research, development and license agreement with Baxalta US Inc. and Baxalta AB, wholly-owned subsidiaries of Takeda, related to the
development of a novel series of polysialylated blood coagulation factors. Takeda acquired Shire plc in January 2019. This collaboration with Takeda relies on the Company’s
PolyXen technology to conjugate PSA with therapeutic blood-clotting factors, with the goal of improving the pharmacokinetic profile and extending the active half-life of these
biologic molecules. The agreement grants Takeda a worldwide, exclusive, royalty-bearing license to the Company’s PSA patented and proprietary technology in combination
with Takeda’s proprietary molecules designed for the treatment of blood and bleeding disorders.

On  October  27,  2017,  the  Company  entered  into  a  Right  of  Sublicense Agreement  (the  “Sublicense Agreement”)  with  Baxalta  Incorporated,  Baxalta  US  Inc.,  and  Baxalta
GmbH (collectively, with their affiliates, “Baxalta”) wholly-owned subsidiaries of Takeda. Pursuant to the Sublicense Agreement, the Company granted to Baxalta the right to
grant  a  nonexclusive  sublicense  to  certain  patents  related  to  the  Company’s  PolyXen  technology  that  were  previously  exclusively  licensed  to  Baxalta  in  connection  with
products  related  to  the  treatment  of  blood  and  bleeding  disorders  (“Covered  Products.”)  Pursuant  to  the  Sublicense Agreement,  Baxalta  (i)  paid  the  Company  a  one-time
payment of seven million five hundred thousand dollars ($7,500,000) in November 2017 and (ii) agreed to pay to the Company single digit royalty payments based upon net
sales of the Covered Products throughout the term.

F-15

 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
In November 2019 the Company was notified by Takeda that net sales of the Covered Products by the sublicensee commenced during the third quarter of 2019 and, as a result,
royalty payments were expected to be paid to the Company under the Sublicense Agreement. The Company’s policy is to recognize royalty revenue in the period of sale, based
on  the  underlying  contract  terms,  provided  that  the  reported  sales  are  reliably  measurable,  the  Company  has  no  remaining  performance  obligations,  and  all  other  revenue
recognition  criteria  are  met. As  the  reported  sales  were  not  reliably  measurable  until  the  Company  received  notification  from  Takeda,  the  Company  recognized  $17,000  in
royalty revenue during the fourth quarter of 2019. There were no remaining performance obligations and all other revenue recognition criteria were met.

SynBio LLC

In August  2011,  SynBio  LLC  (“SynBio”),  a  wholly-owned  subsidiary  of  Pharmsynthez,  and  the  Company  entered  into  a  stock  subscription  and  collaborative  development
agreement (the “Co-Development Agreement”). The Company granted an exclusive license to SynBio to develop, market and commercialize certain drug candidates utilizing
molecules  based  on  SynBio’s  technology  and  the  Company’s  proprietary  technologies  (PolyXen,  OncoHist  and  ImuXen)  that  prolongs  the  active  life  and/or  improves  the
pharmacokinetics  of  certain  therapeutic  proteins  and  peptides  (as  well  as  conventional  drugs).  In  return,  SynBio  granted  an  exclusive  license  to  the  Company  to  use  the
preclinical and clinical data generated by SynBio in certain agreed products and engage in the development of commercial candidates.

SynBio and the Company are each responsible for funding their own research activities. There are no milestone or other research-related payments due under the agreement
other  than  fees  for  the  supply  of  each  company’s  respective  research  supplies  based  on  their  technology,  which,  when  provided,  are  due  to  mutual  convenience  and  not
representative of an ongoing or recurring obligation to supply research supplies. Serum Institute of India Limited (“Serum Institute”) has agreed to directly provide the research
supplies  to  SynBio,  where  the  Company  is  not  liable  for  any  failure  to  supply  the  research  supplies  as  a  result  of  any  act  or  fault  of  Serum  Institute.  Upon  successful
commercialization of any resultant products, the Company is entitled to receive royalties on sales in certain territories and pay royalties to SynBio for sales outside those certain
territories.

Through December 31, 2019, the Company and SynBio continued to engage in research and development activities with no resultant commercial products. The Company did
not recognize revenue in connection with the Co-Development Agreement during the years ended December 31, 2019 and 2018.

Serum Institute of India Limited

In August 2011, the Company entered into a collaborative research and development agreement with Serum Institute providing Serum Institute an exclusive license to use the
Company’s  PolyXen  technology  to  research  and  develop  one  potential  commercial  product,  Polysialylated  Erythropoietin  (“PSA-EPO”).  Serum  Institute  is  responsible  for
conducting  all  preclinical  and  clinical  trials  required  to  achieve  regulatory  approvals  within  the  certain  predetermined  territories  at  Serum  Institute’s  own  expense.  Royalty
payments are payable by Serum Institute to the Company for net sales to certain customers in the Serum Institute sales territory. Royalty payments are payable by the Company
to Serum Institute for net sales received by the Company over the term of the license. There are no milestone or other research-related payments due under the collaborative
arrangement.

Through December 31, 2019, the Company and Serum Institute continued to engage in research and development activities with no resultant commercial products. No royalty
revenue or expense was recognized by the Company related to the Serum Institute arrangement during the years ended December 31, 2019 and 2018.

Serum Institute had a share ownership of approximately 0.9% and 6.7% of the total issued Common Stock of the Company as of December 31, 2019 and 2018, respectively. In
addition to its’ Common Stock ownership, Serum Institute holds outstanding warrants to purchase the Company’s Common Stock. See Note 10, Stockholders’ Equity.

F-16

 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
PJSC Pharmsynthez

In November 2009, the Company entered into a collaborative research and development license agreement with Pharmsynthez (the “Pharmsynthez Arrangement”) pursuant to
which the Company granted an exclusive license to Pharmsynthez to develop, commercialize and market six product candidates based on the Company’s PolyXen and ImuXen
technology in certain territories. In exchange, Pharmsynthez granted an exclusive license to the Company to use any preclinical and clinical data developed by Pharmsynthez,
within the scope of the Pharmsynthez Arrangement, and to engage in further research, development and commercialization of drug candidates outside of certain territories at the
Company’s own expense.

Pharmsynthez is an affiliate and former controlling stockholder of the Company with a share ownership of approximately 7.4% and 57.1% of the total outstanding Common
Stock of the Company as of December 31, 2019 and 2018, respectively. In addition to its Common Stock ownership, Pharmsynthez holds outstanding warrants to purchase the
Company’s Common Stock, approximately 1.5 million shares of the Company’s outstanding Series B Preferred Stock, and all of the Company’s outstanding Series A Preferred
Stock through its wholly-owned subsidiary, SynBio, as of December 31, 2019 and 2018. See Note 10, Stockholders’ Equity.

4.

Acquisitions

On March 1, 2019 (the “Signing Date”) the Company entered into agreements with Hesperix and OPKO to acquire the XCART technology. The Company entered into a Share
Purchase Agreement,  as  amended  (the  “Share  Purchase Agreement”),  with  Hesperix,  the  owners  of  Hesperix  (each,  a  “Seller”  and  collectively,  the  “Sellers”),  and Alexey
Andreevich Vinogradov, as the representative of each Seller, pursuant to which the Company purchased from Sellers all of the issued and outstanding shares of capital stock of
Hesperix.

Under the terms of the Share Purchase Agreement, the Company issued to Sellers an aggregate of Four Hundred Six Thousand Two Hundred Forty-Six (406,246) shares of the
Company’s Common Stock (the “Transaction Shares”) at the time of the closing. In addition, the Share Purchase Agreement contains customary representations and warranties
relating to each Seller and about the condition of the Company and Hesperix. The Company issued the Transaction Shares pursuant to a registration statement on Form S-4.

On  the  Signing  Date  and  in  connection  with  the  Transaction,  Hesperix  entered  into  an  assignment  agreement  (the  “Hesperix  Assignment  Agreement”)  with  IBCH,
Pharmsynthez, and certain other parties thereto (collectively, the “Assignors”), pursuant to which, the Assignors have agreed, among other things, to sell, assign, transfer, and
convey unto Hesperix all of their individual right, title, and interest throughout the world in and to patents related to “Articles And Methods Directed To Personalized Therapy
Of  Cancer,”  and  the  related  know-how.  Hesperix  has  agreed  to  pay  each  of  IBCH  and  Pharmsynthez  a  royalty  rate  in  the  low  single  digit  range  based  on  the  net  sales  of
products  in  each  country  in  which,  in  the  absence  of  the  Hesperix Assignment Agreement,  the  manufacture,  use,  offer  for  sale,  sale,  or  importation  of  such  product  would
infringe a valid claim of a patent.

Also on the Signing Date, the Company entered into an assignment agreement with OPKO (the “OPKO Assignment Agreement”), pursuant to which the Company will acquire
and accept, all of OPKO’s right, title and interest in and to that certain Intellectual Property License Agreement (the “IP License Agreement”), entered into between the Institute
and OPKO regarding certain patents related to “Articles And Methods Directed To Personalized Therapy Of Cancer” and in which the Institute agreed to grant an exclusive
royalty-bearing license, to the patent rights owned by the Institute to OPKO, and OPKO has agreed to pay the Institute a royalty rate in the low single digit range based on the
net sales of products in each country in which, in the absence of the IP License Agreement, the manufacture, use, offer for sale, sale, or importation of such product would
infringe a valid claim of a patent or pending application.

F-17

 
   
 
   
 
 
 
 
 
 
 
 
 
 
Under the terms of the OPKO Assignment Agreement and the IP License Agreement, the Company issued One Hundred Sixty Four Thousand Sixty Two (164,062) shares of
the Company’s Common Stock to OPKO and Fifty-Four Thousand Six Hundred Eighty Seven (54,687) shares of the Company’s Common Stock to the Institute at the time of
the closing. In addition, the OPKO Assignment Agreement contains customary representations and warranties relating to OPKO and the IP License Agreement.

On  July  19,  2019,  the  Company  closed  the  Transaction  (the  “Closing  Date”),  acquiring  IPR&D  related  to  certain  intellectual  property  rights  with  respect  to  the  XCART
technology.  The  acquisition  did  not  meet  the  business  combination  requirements  and,  as  a  result,  was  accounted  for  as  an  asset  acquisition.  The  total  consideration  for  the
IPR&D was approximately $4.1 million, which represented the value of the common shares issued of $3.0 million utilizing the market price of the Company’s stock price at the
Closing Date and approximately $1.1 million of transaction costs. As there was no future alternative use for the IPR&D, the Company  recorded  expense  of  $3.0  million  to
research and development expense and $1.1 million to general and administrative expense for the transaction costs in the year ended December 31, 2019.

5.

Property and Equipment, net

Property and equipment, net consists of the following:

Office and computer equipment
Leasehold improvements
Furniture and fixtures
Property and equipment – at cost
Less accumulated depreciation
Property and equipment, net

December 31,
2019

December 31,
2018

$

$

42,289   
–   
14,738   
57,027   
(56,270)  
757   

$

$

42,289 
26,841 
20,263 
89,393 
(84,437)
4,956 

Depreciation expense was approximately $4,000 and $16,000 for the years ended December 31, 2019 and 2018, respectively. During the year ended December 31, 2019, the
Company  sold  certain  furniture  and  fixtures  for  $2,000  resulting  in  an  approximate  $2,000  gain.  During  the  year  ended  December  31,  2018,  the  Company  sold  certain
laboratory equipment for $22,500 resulting in an approximate $15,000 gain.

6.

Goodwill, Indefinite-Lived Intangible Assets and Other Long-Term Assets

Goodwill

The Company experienced a significant decline in the market price of its stock during 2019 resulting in a drop in its market capitalization indicating potential impairment. The
Company determined the fair value of the reporting unit using its market capitalization, concluding that the fair value of the reporting unit was less than the carrying amount in
excess of Goodwill. As a result, the Company recorded a $3.3 million impairment charge during the year ended December 31, 2019, which is presented within operating costs
and expenses in the consolidated statements of comprehensive loss. A reconciliation of the change in the carrying value of goodwill is as follows:

Balance as of January 1, 2018
No changes
Balance as of December 31, 2018
Impairment
Balance as of December 31, 2019

$

$

$

3,283,379 
– 
3,283,379 
(3,283,379) 
– 

F-18

 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Indefinite-Lived Intangible Assets

The  Company’s  indefinite-lived  intangible  asset,  OncoHist,  is  IPR&D  relating  to  the  Company’s  business  combination  with  SymbioTec  in  2012.  The  carrying  value  of  the
IPR&D was approximately $9.2 million as of December 31, 2019 and 2018. No impairment was recorded during the years ended December 31, 2019 and 2018. The IPR&D is
not yet commercialized and, therefore, has not yet begun to be amortized as of December 31, 2019.

Other Long-Term Assets

The Company entered into an agreement with Serum Institute for the prepayment of clinical PSA supply in exchange for Company Common Stock. As of December 31, 2019
and 2018, the Company has classified $0.7 million of prepaid clinical supply as long-term as it does not anticipate utilizing the majority of the PSA supply within the next 12
months. No clinical supply was utilized during the years ended December 31, 2019 and 2018.

In October 2019, the Company entered into a Loan Agreement with Pharmsynthez (the “Pharmsynthez Loan”), pursuant to which the Company advanced Pharmsynthez an
aggregate principal amount of up to $500,000 to be used for the development of a specific product under the Co-Development Agreement. The Pharmsynthez Loan has a term
of 15-months and accrues interest at a rate of 10% per annum. The Pharmsynthez Loan is guaranteed by all of the operating subsidiaries of Pharmsynthez, including SynBio and
AS Kevelt, and is secured by all of the equity interests of the Company owned by Pharmsynthez and SynBio. The Company recognized approximately $9,000 of interest income
related to this loan during the twelve-months ended December 31, 2019.

7.

Accrued Expenses

Accrued expenses consist of the following:

Accrued payroll and benefits
Accrued professional fees
Accrued research costs
Other

8.

Fair Value Measurements

December 31,
2019

December 31,
2018

$

$

68,016   
306,413   
80,519   
9,039   
463,987   

$

$

53,541 
394,075 
205,067 
11,346 
664,029 

ASC Topic 820, Fair Value Measurement, defines fair value as the price that would be received to sell an asset or be paid to transfer a liability in an orderly transaction between
market participants at the measurement date. The Company applies the following fair value hierarchy, which prioritizes the inputs used to measure fair value into three levels
and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement. Level 1 inputs are quoted prices in
active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2 utilizes quoted market prices in markets that
are not active, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency. Level 3 inputs are unobservable inputs for the asset or
liability in which there is little, if any, market activity for the asset or liability at the measurement date. The carrying amount of certain of the Company’s financial instruments
approximate fair value due to their short maturities. There were no financial instruments classified as Level 3 in the fair value hierarchy during the years ended December 31,
2019 and 2018.

F-19

 
 
 
 
 
 
  
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
9.

Income Taxes

Deferred  tax  assets  and  liabilities  are  determined  based  on  temporary  differences  resulting  from  the  different  treatment  of  items  for  tax  and  financial  reporting  purposes.
Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to
reverse. Additionally, the Company must assess the likelihood that deferred tax assets will be recovered as deductions from future taxable income. The Company has provided
a full valuation allowance on the Company’s deferred tax assets because the Company believes it is more likely than not that its deferred tax assets will not be realized. The
Company evaluates the recoverability of its deferred tax assets on a quarterly basis. Currently, there is no provision for income taxes as the Company has incurred losses to date.

The components of loss before income taxes are as follows:

Domestic (U.S.)
Foreign (U.K.)
Foreign (Germany)
Foreign (Switzerland)
Loss before income taxes

Year ended December 31,

2019

2018

$

$

(4,317,585)  
(2,302,131)  
(3,389,473)  
(2,765,836)  
(12,775,025)  

$

$

(3,824,673)
(3,379,268)
(96,517)
– 
(7,300,458)

The reconciliation of income tax benefit at the U.S. corporation tax rate, being the rate applicable to the country of domicile of the Company to net income tax benefit is as
follows:

Federal
State
Increase in tax losses not recognized
Permanent differences, net
Goodwill impairment
Foreign rate differential
Share-based payments, net
Enhanced research and development tax credits
Other items
Net provision (benefit) for income taxes

Year ended December 31,

2019

2018

$

$

(2,682,755)  
(284,724)  
1,878,033   
1,323   
689,510   
381,190   
11,084   
(54,148)  
60,487   
–   

$

$

(1,533,096)
(238,952)
1,695,482 
40,015 
– 
124,294 
20,441 
(108,184)
– 
– 

F-20

 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
Deferred tax assets and liabilities reflect the net tax effect of temporary differences between the carrying amount of assets and liabilities for financial reporting purposes and the
amounts used for income tax purposes. Significant components of the Company’s deferred tax assets are as follows:

Deferred tax assets:

U.K. net operating loss carryforwards
U.K. capital loss carryforwards
U.S. federal net operating loss carryforwards
Switzerland net operating loss carryforwards
IPR&D
Share-based payments
Enhanced research and development tax credits
Germany net operating loss carryforwards
U.S. state net operating loss carryforwards
Transaction costs
Accrued expenses
Depreciation
Lease liability

Total deferred tax assets before valuation allowance
Valuation allowance for deferred tax assets
   Net deferred tax assets
Deferred tax liabilities:

Indefinite-lived intangible asset
Right of use asset – leases
Total deferred tax liabilities

Net deferred liability

Year ended December 31,

2019

2018

$

$

$

8,984,851   
1,340,302   
3,857,973   
23,510   
6,454,240   
2,065,735   
1,219,815   
545,852   
1,160,983   
142,013   
72,503   
5,070   
5,475   
25,878,322   
(25,872,847)  
5,475   

(2,918,518)  
(5,475)  
(2,923,993)  
(2,918,518)  

$

8,039,343 
1,298,303 
3,184,691 
– 
6,108,078 
1,859,357 
1,109,026 
524,093 
1,298,745 
– 
59,979 
3,283 
– 
23,484,898 
(23,484,898)
– 

(2,918,518)
– 
(2,918,518)
(2,918,518)

For the years ended December 31, 2019 and 2018, the Company had U.K. net operating loss carryforwards of approximately $52.9 million and $47.3 million, respectively, U.S.
federal  net  operating  loss  carryforwards  of  approximately  $18.4  million  and  $16.5  million,  respectively,  U.S.  state  net  operating  loss  carryforwards  of  approximately  $18.4
million and $16.2 million, respectively, Germany net operating loss carryforwards of approximately $1.7 million and $1.7 million, respectively, and Switzerland net operating
loss carryforwards of approximately $0.3 million and $0 million, respectively. The U.K. and Germany net operating loss carryforwards can be carried forward indefinitely. $5.0
million of the U.S. federal net operating loss carryforwards can be carried forward indefinitely and the remaining U.S. federal and state net operating loss carryforwards begin to
expire in 2032.

The Company’s ability to use its operating loss carryforwards and tax credits generated in the U.S. to offset future taxable income is subject to restrictions under Section 382 of
the  U.S.  Internal  Revenue  Code  (the  “Code”).  These  restrictions  may  limit  the  future  use  of  the  operating  loss  carryforwards  and  tax  credits  if  certain  ownership  changes
described in the Code occur. Future changes in stock ownership may occur that would create further limitations on the Company’s use of the operating loss carryforwards and
tax credits. In such a situation, the Company may be required to pay income taxes, even though significant operating loss carryforwards and tax credits exist.

F-21

 
 
 
 
 
 
 
 
   
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
  
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
The Company’s ability to use its operating loss carryforwards and tax credits generated in the U.K. are subject to restrictions under U.K. tax legislation. These regulations may
limit the future use of operating loss carryforwards if there is a change in ownership and a change in the nature or conduct of the business carried on by the Company, and in
certain circumstances where there is a change in the nature or conduct of the business only. In such cases the carryforwards would cease to be available to set against future
income.

The Company’s ability to use its operating loss carryforwards and tax credits generated in Germany and Switzerland are also subject to restrictions under German and Swiss tax
legislation.  These  regulations  may  limit  the  future  use  of  operating  loss  carryforwards  if  there  is  a  change  in  ownership.  In  such  cases  the  carryforwards  would  cease  to  be
available to set against future income.

As of December 31, 2019 and 2018, the Company did not record any uncertain tax positions.

The Company files income tax returns in the U.S. federal tax jurisdiction and Massachusetts state tax jurisdiction, and certain foreign tax jurisdictions. The Company is subject
to  examination  by  the  U.S.  federal,  state,  foreign,  and  local  income  tax  authorities  for  calendar  tax  years  ending  2014  through  2019  due  to  available  net  operating  loss
carryforwards and research and development tax credits arising in those years. The Company has not been notified of any examinations by the Internal Revenue Service or any
other tax authorities as of December 31, 2019. The Company has not recorded any interest or penalties for unrecognized tax benefits since its inception.

Potential 382 Limitation

The Company’s net operating loss and tax credit carryforwards are subject to review and possible adjustment by the Internal Revenue Service.  The Company’s ability to utilize
its net operating loss (“NOL”) and research and development credit (“R&D”) carryforwards may be substantially limited due to ownership changes that may have occurred or
that could occur in the future, as required by Section 382 of the Code, as well as similar state provisions. These ownership changes may limit the amount of NOL and R&D
credit carryforwards that can be utilized annually to offset future taxable income and tax, respectively.  In general, an ownership change, as defined in Section 382 of the Code,
results from a transaction or series of transactions over a three-year period resulting in an ownership change of more than 50% of the outstanding stock of a company by certain
stockholders or public groups.

The Company has not completed a study to assess whether one or more ownership changes have occurred since it became a loss corporation as defined in Section 382 of the
Code, but the Company believes that it is likely that an ownership change has occurred. If the Company has experienced an ownership change, utilization of the NOL and R&D
credit carryforwards would be subject to an annual limitation, which is determined by first multiplying the value of the Company’s Common Stock at the time of the ownership
change by the applicable long-term, tax-exempt rate, and then could be subject to additional adjustments, as required. Any such limitation may  result  in  the  expiration  of  a
portion of the NOL or R&D credit carryforwards before utilization.  Until a study is completed, and any limitation known, no amounts are being considered as an uncertain tax
position or disclosed as an unrecognized tax benefit. Any carryforwards that expire prior to utilization as a result of such limitations will be removed from deferred tax assets
with a corresponding adjustment to the valuation allowance. Due to the existence of the valuation allowance, it is not expected that any potential limitation will have a material
impact on the Company’s operating results.

From time to time the Company may be assessed interest or penalties by major tax jurisdictions, namely the Commonwealth of Massachusetts. As of December 31, 2019, the
Company  had  no  material  unrecognized  tax  benefits  and  no  adjustments  to  liabilities  or  operations  were  required.  No  interest  and  penalties  have  been  recognized  by  the
Company to date.

F-22

 
  
 
  
 
 
 
 
 
 
 
 
 
 
10.

Stockholders’ Equity

The Offering

On  July  17,  2019,  the  Company  entered  into  an  underwriting  agreement  (the  "Underwriting  Agreement")  with  Maxim  Group  LLC  (the  “Underwriter”),  relating  to  the
Company’s Offering of 1,730,000 shares (the “Shares”) of the Company’s common stock, par value $0.001 (the “Common Stock”), Prefunded Warrants to purchase 570,000
shares of Common Stock (the “Prefunded Warrants”), and warrants to purchase 2,300,000 shares of the Common Stock (the “Purchase Warrants,” and together with the Shares
and  the  Prefunded  Warrants,  the  "Firm  Securities").  Each  Share  was  sold  together  with  one  Purchase  Warrant  at  a  combined  public  offering  price  of  $6.50  per  Share  and
Purchase Warrant. Each Prefunded Warrant purchased was sold together with one Purchase Warrant at a combined public offering price of $6.49 per Prefunded Warrant and
Purchase Warrant. The Prefunded Warrants were exercisable beginning on July 17, 2019 at an exercise price of $0.01 per share. The holders of the Prefunded Warrants did not
have the right to exercise any portion of the Prefunded Warrant if the holder (together with its affiliates) would beneficially own in excess of 4.99% of the number of shares of
our  Common  Stock  outstanding  immediately  after  giving  effect  to  the  exercise,  as  such  percentage  ownership  is  determined  in  accordance  with  the  terms  of  the  Prefunded
Warrants. The Prefunded Warrants had an intrinsic value of approximately $3.1 million.  Pursuant to the Underwriting Agreement, the Company also granted the Underwriter a
45-day option to purchase up to an additional 345,000 shares of Common Stock and/or Purchase Warrants to purchase up to 345,000 shares of Common Stock (the "Additional
Securities," and together with the Firm Securities, the "Securities"), at the public offering price less discounts and commissions. The Securities were offered, issued, and sold
pursuant  to  an  effective  Registration  Statement  on  Form  S-1  (Reg.  No.  333-231508)  and  accompanying  prospectus  filed  with  the  SEC  under  the  Securities Act  of  1933,  as
amended.

On the  Closing  Date, the  Company  completed  the  Offering  resulting  in  gross  proceeds  to  the  Company  of  approximately  $15.0  million  before  deducting  the  underwriting
discount and offering fees and expenses payable by the Company. In addition, on the Closing Date, the Underwriter exercised its overallotment option with respect to 160,000
Purchase Warrants, resulting in additional gross proceeds of $1,600. The Company intends to use the net proceeds from the Offering of approximately $13.4 million to fund its
research, development and clinical programs, including the development of the XCART technology acquired in the Transaction, and for other general corporate purposes. All of
the Prefunded Warrants were exercised during the year ended December 31, 2019 resulting in $5,700 of net proceeds to the Company.

The Purchase Warrants are immediately exercisable at a price of $13.00 per share of Common Stock and expire five years from the date of issuance. The Purchase Warrants
began trading on NASDAQ on July 23, 2019 under the symbol “XBIOW.” The Purchase Warrants also provide that if the weighted-average price of Common Stock on any
trading day on or after 30 days after issuance is lower than the then-applicable exercise price per share, each Purchase Warrant may be exercised, at the option of the holder, on
a cashless basis for one share of Common Stock. The Company evaluated the terms of the warrants issued and determined that they should be classified as equity instruments.
The grant date fair value of these warrants was estimated to be $4.61 per share, for a total of approximately $11.3 million. The fair value of these warrants was estimated using a
Black-Scholes  model  utilizing  the  following  key  valuation  assumptions:  the  Company’s  stock  price,  a  risk  free  rate  of  1.83%,  an  expected  life  of  5  years  and  an  expected
volatility of 141.89%. Purchase Warrants to purchase approximately 2.2 million shares of Common Stock were exercised on a cashless one-for-one basis during the year ended
December 31, 2019.

Common Stock

Each share of common stock entitles the holder to one vote on all matters submitted to a vote of the Company’s stockholders. Common stockholders are entitled to dividends
when and if declared by the Board of Directors. In the event of any voluntary or involuntary liquidation, dissolution or winding-up of the Company, the holders of common
stock are entitled to share ratably in the assets of the Company available for distribution.

F-23

 
  
 
 
 
 
 
 
 
 
 
 
 
On  July  16,  2019,  the  Company,  in  connection  with  the  Offering,  entered  into  a  consent  agreement  with  certain  holders  of  warrants  to  purchase  shares  of  the  Company’s
Common Stock whose consent was sought in connection with the Offering. In consideration of the holders’ consent, the Company agreed to (i) issue such holders an aggregate
of 16,666 shares of the Company’s Common Stock (“Consent Shares”) and (ii) adjust the exercise price of those certain warrants issued to each holder in connection with the
Company’s Reverse Stock Split on June 25, 2019. The Consent Shares and incremental cost associated with the warrant modification were determined to be direct costs of the
Offering and, as a result, have been included within net proceeds from the Offering.

On June 21, 2019, the Company filed a Certificate of Change to the Company’s Articles of Incorporation with the Secretary of State of Nevada to effect the Reverse Stock Split.
The Reverse Stock Split was effective at 12:01 a.m., eastern Time, on June 25, 2019. No fractional shares were issued as a result of the Reverse Stock Split and any remaining
share fractions were rounded up to the nearest whole share, resulting in 1,442 new shares of Common Stock being issued to existing holders of the Company’s Common Stock.

On June 19,  2019,  shareholders  of  the  Company  voted  to  approve  an  amendment  to  the  Company’s Articles  of  Incorporation  to  increase  the  authorized  shares  of  Common
Stock to 150,000,000 shares on a pre-Reverse Stock Split basis (the “Authorized Share Increase”). On June 24, 2019, the Company filed a Certificate of Amendment to the
Company’s Articles of Incorporation with the Secretary of the State of Nevada to effect the Authorized Share Increase as of June 25, 2019. As a result of the Authorized Share
Increase and after giving effect to the Reverse Stock Split, the Company had 12,500,000 authorized shares of Common Stock.

As  a  result  of  the  Reverse  Stock  Split,  the  number  of  outstanding  shares  of  our  Common  Stock  held  by  non-affiliates  was  approximately  475,000.  On  June  28,  2019,  the
Company received a notice from the Nasdaq Capital Market ("NASDAQ") that it no longer met the minimum 500,000 publicly held shares requirement for continued listing.
On  July  19,  2019,  the  Company  received  a  notice  from  NASDAQ  that  the  Company  had  regained  compliance  with  the  publicly  held  shares  requirement  as  a  result  of  the
Offering.

On March 5, 2019, the Company entered into a Securities Purchase Agreement with certain purchasers pursuant to which the Company offered to the purchasers, in a registered
direct offering, an aggregate of (i) 86,667 shares of Common Stock, par value $0.001 per share and (ii) prefunded warrants to purchase 42,417 shares of Common Stock. The
prefunded warrants were exercisable beginning on March 7, 2019 at an exercise price of $0.012 per share. The shares were sold at a price of $24.00 per share and the prefunded
warrants were sold at a price of $23.988 per prefunded warrant, which represents the per share purchase price for the shares less the $0.012 per share exercise price for each
such prefunded warrant. The holders of the prefunded warrants did not have the right to exercise any portion of the prefunded warrant if the holder (together with its affiliates)
would  beneficially  own  in  excess  of  9.99%  of  the  number  of  shares  of  our  Common  Stock  outstanding  immediately  after  giving  effect  to  the  exercise,  as  such  percentage
ownership is determined in accordance with the terms of the prefunded warrants. The net proceeds to the Company from this offering were approximately $2.7 million, after
deducting expenses related to the offering, including dealer-manager fees and expenses. In a concurrent private placement, the Company issued to the purchasers a warrant to
purchase one share of the Company’s Common Stock for each share and prefunded warrant purchased in the offering. These warrants have an exercise price of $27.00 per
share, were exercisable beginning on September 8, 2019 and expire seven years from such date. The Company evaluated the terms of the warrants issued and determined that
they should be classified as equity instruments. The grant date fair value of these warrants was estimated to be $22.74 per share, for a total of approximately $2.9 million. The
fair value of the warrants was estimated using a Black-Scholes model utilizing the following key valuation assumptions: the Company’s stock price, a risk free rate of 2.56%, an
expected life of 7.5 years and an expected volatility of 111.3%. The prefunded warrants had an intrinsic value of approximately $1.1 million. During the year ended December
31, 2019, all of the prefunded warrants were exercised resulting in $509 of net proceeds to the Company.

The  holders  of  Series  B  Preferred  Stock  converted  approximately  316,000  shares  into  approximately  26,000  shares  of  Common  Stock  during  the  year  ended  December  31,
2018. There were no conversions during the year ended December 31, 2019.

During the year ended December 31, 2018, approximately 31,000 warrants were exercised resulting in the issuance of approximately 31,000 shares of Common Stock. There
were no exercises of warrants during the year ended December 31, 2019.

F-24

 
   
 
 
 
 
 
 
 
 
 
 
 
Series A Preferred Stock

The Company has designated 1,000,000 shares as Series A preferred stock with each share having a par value of $0.001 and stated value of $4.80 (the “Series A Preferred
Stock”). The following is a summary of the material terms of the Series A Preferred Stock.

Liquidation.    Upon any dissolution, liquidation or winding up, whether voluntary or involuntary, holders of Series A Preferred Stock will be entitled to receive distributions
out of the Company’s assets, of an amount equal to $4.80 per share of Series A Preferred Stock (as adjusted for stock splits, combinations, reorganizations and the like) plus
any accrued and unpaid dividends thereon before any distributions shall be made on the Common Stock or any series of preferred stock ranked junior to the Series A Preferred
Stock.

Dividends.    Holders of the Series A Preferred Stock are entitled to receive a non-cumulative, annual cash dividend of $0.24 per share of Series A Preferred Stock, when and if
declared by the Company’s Board, out of the Company’s assets legally available therefor. No dividends or other distribution will be made on the Common Stock or any series
of preferred stock ranked junior to the Series A Preferred Stock unless the dividend on the Series A Preferred Stock has been paid current and a reserve has been made for the
next calendar year. The Company’s ability to pay dividends on Series A Preferred Stock is subject to restrictions in the Company’s Series B Preferred Stock, which ranks senior
to the Series A Preferred Stock in right of payment.

Conversion.    Series A Preferred Stock is convertible, at any time and from time to time at the option of the holder thereof, with a minimum of 61 days’ advance notice to the
Company on a twelve preferred shares for one share of Common Stock basis.

Redemption. Upon 30 days prior written notice, the Company may require the holder of any Series A Preferred Stock to convert any or all of such holder’s Series A Preferred
Stock to Common Stock at a rate of twelve shares of Series A Preferred Stock to one share of Common Stock.

The Series A Preferred Stock has additional terms covering stock dividends and splits, voting rights, fractional shares and fundamental transactions. As of December 31, 2019
and 2018, there were approximately 1.0 million shares of Series A Preferred Stock issued and outstanding which are convertible into approximately 80,834 shares of Common
Stock.

Series B Preferred Stock

The  Company  has  designated  2,500,000  shares  as  Series  B  preferred  stock  with  each  share  having  a  stated  value  of  $4.00  per  share  (the  “Series  B  Preferred  Stock”).  The
following is a summary of the material terms of the Company’s Series B Preferred Stock.

Liquidation.    Upon any dissolution, liquidation or winding up, whether voluntary or involuntary, holders of Series B Preferred Stock will be entitled to receive distributions
out of the Company’s assets, of an amount equal to $4.00 per share of Series B Preferred Stock (as adjusted for stock splits, combinations, reorganizations and the like) plus any
accrued and unpaid dividends thereon and any other fees or liquidated damages then due and owing thereon under the amended and restated certificate of designation before any
distributions shall be made on the Common Stock or any series of preferred stock ranked junior to the Series B Preferred Stock, which includes Series A Preferred Stock. A
fundamental transaction or change of control under the amended and restated certificate of designation shall constitute a liquidation for purposes of this right. Xenetic will give
each holder of Series B Preferred Stock written notice of any liquidation at least 30 days before any meeting of stockholders to approve such liquidation or at least 45 days
before the date of such liquidation if no meeting is to be held.

F-25

 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
Dividends.    Subject to any preferential rights of any outstanding series of preferred stock created by the Company’s Board from time to time, the holders of shares of the
Company’s Series B Preferred Stock will be entitled to such cash dividends, non-cumulative, as may be declared from time to time by the Company’s Board on shares of the
Company’s Common Stock (on an as-converted basis) from funds available therefore. The Company shall not directly or indirectly pay or declare any dividend or make any
distribution  upon,  nor  shall  any  distribution  be  made  in  respect  of,  any  junior  securities,  including  Series A  Preferred  Stock,  as  long  as  any  dividends  due  on  the  Series  B
Preferred Stock remain unpaid, nor shall any monies be set aside for or applied to the purchase or redemption of any junior securities or shares pari passu with the Series B
Preferred Stock.

Conversion.     Series B Preferred Stock is convertible, at any time and from time to time at the option of the holder thereof on a 1.625 preferred shares to one common share
basis, subject to an issuable maximum and the adjustments described below.

Subsequent Equity Sales.    The Series B Preferred Stock has full ratchet price based anti-dilution protection, subject to customary carve outs, in the event of a down-round
financing at a price per share below the stated value of the Series B Preferred Stock. There is no bifurcation of the embedded conversion option being clearly and closely related
to the host instrument.

The Series B Preferred Stock has additional terms covering stock dividends and splits, voting rights, fractional shares and fundamental transactions. As of December 31, 2019
and 2018, there were approximately 1.8 million shares of Series B Preferred Stock issued and outstanding which are convertible into approximately 0.6 million and 0.3 million
shares of Common Stock, respectively. As of December 31, 2019, the issuable maximum is 0.6 million shares of Commons Stock that can be issued upon the conversion of the
currently outstanding Series B Preferred Stock and the exercise of outstanding warrants that were issued in connection with the Series B Preferred Stock. The holders of Series
B Preferred Stock converted approximately 0.3 million shares into approximately 26,000 shares of Common Stock during the year ended December 31, 2018. There were no
Series B Preferred Stock conversions during the year ended December 31, 2019.

The March 2019 registered direct offering triggered the down-round provision in the Company’s Series B Preferred Stock resulting in an adjustment to the conversion ratio and
the recording of a deemed dividend of $3.9 million increasing the net loss attributable to common shareholders for year ended December 31, 2019. In addition, the Offering
triggered  the  down-round  provision  in  the  Company’s  Series  B  Preferred  Stock,  resulting  in  a  further  adjustment  to  the  conversion  ratio  and  the  recording  of  an  additional
deemed dividend of $1.4 million increasing the net loss attributable to common shareholders for the year ended December 31, 2019.

Warrants Related to Collaboration and Consulting Agreements

In connection with certain of the Company’s collaboration agreements and consulting arrangements, the Company has issued warrants to purchase shares of Common Stock as
payment for services. As of December 31, 2019 and 2018, warrants to purchase 32,412 and 44,944 shares of Common Stock were outstanding, respectively. The fair value of
these warrants was determined at each issuance date using the Black-Scholes option pricing model. The warrants are subject to re-measurement at each reporting period until the
measurement date is reached. Expense is recognized on a straight-line basis over the expected service period or at the date of issuance if there is not a service period.

On December 31, 2014, SynBio was granted a warrant to purchase 17,033 new shares of Common Stock at an exercise price of $304.92 per share (“SynBio 2014 Warrant”).
The SynBio 2014 Warrant was exercisable in four equal tranches, each with separate non-market, performance-based vesting criteria. The Company used its judgment to assess
the probability and timing of SynBio achieving these vesting criteria and estimated that it was not probable that the vesting criteria for any tranche would be achieved. None of
the vesting criteria were met and, therefore, these warrants were forfeited. As a result, the Company did not recognize expense related to this warrant during the years ended
December 31, 2019 and 2018.

F-26

 
 
 
 
   
 
 
 
  
 
 
 
 
 
In connection with the SynBio 2014 Warrant grant, warrants to purchase 809 aggregate new shares of Common Stock were issued to SynBio and Pharmsynthez non-director
designees (“SynBio Partner Warrants”) on December 31, 2014 under the same terms and conditions of the SynBio 2014 Warrant. The vesting criteria for any tranche were not
met and, therefore, these warrants were forfeited. As a result, the Company did not recognize expense related to the SynBio Partner Warrants during the years ended December
31, 2019 and 2018.

On December 31, 2014, the Company granted Serum Institute a warrant to purchase 8,081 new shares of Common Stock at an exercise price of $95.04 per share, as adjusted
(“Serum Institute 2014 Warrant”). The Serum Institute 2014 Warrant was exercisable in two equal tranches, each with separate non-market, performance-based vesting criteria.
The Company used its judgment to assess the probability and timing of Serum Institute achieving these vesting criteria. These judgments were reassessed at each reporting
period until the measurement date was reached. These warrants expired as of December 31, 2019.

In  connection  with  the  Serum  Institute  2014  Warrant  grant,  warrants  to  purchase  410  aggregate  new  shares  of  Common  Stock  were  issued  to  Serum  Institute  non-director
designees (“Serum Institute Partner Warrants”) on December 31, 2014 under the same terms and conditions of the Serum Institute 2014 Warrant. These warrants expired as of
December 31, 2019.

In 2016, the Company issued 17,677 warrants to purchase shares of Common Stock to Serum Institute with an exercise price of $95.04. The new warrants were fully vested and
expensed at the time of grant.

The Company recognized warrant expense of approximately $10,000 during the year ended December 31, 2018 related to the Serum Institute 2014 Warrant and Serum Institute
Partner Warrants. The Company did not recognize warrant expense during the year ended December 31, 2019. No collaboration or consulting service warrants were exercised
or granted during the years ended December 31, 2019 and 2018. These outstanding warrants have an average weighted exercise price of $136.45 and expiration dates ranging
from May 2020 through May 2021.

Warrants Related to Financing Arrangements

On July 17, 2019, in connection with the Offering, the Company offered to the purchasers Prefunded Warrants to purchase 570,000 shares of Common Stock. The Prefunded
Warrants were exercisable beginning on July 17, 2019 at an exercise price of $0.01 per share. The Prefunded Warrants were sold at a price of $6.49 per Prefunded Warrant,
which represented the per share purchase price for the shares less the $0.01 per share exercise price for each such Prefunded Warrant. The holders of the Prefunded Warrants
did not have the right to exercise any portion of the Prefunded Warrant if the holder (together with its affiliates) would beneficially own in excess of 4.99% of the number of
shares  of  our  Common  Stock  outstanding  immediately  after  giving  effect  to  the  exercise,  as  such  percentage  ownership  is  determined  in  accordance  with  the  terms  of  the
Prefunded  Warrants. All  of  the  Prefunded  Warrants  to  purchase  570,000  shares  were  exercised  during  the  year  ended  December  31,  2019  resulting  in  net  proceeds  to  the
Company of $5,700. Also in connection with the Offering, the Company issued to the purchasers the Purchase Warrants. These Purchase Warrants have an exercise price of
$13.00  per  share,  were  exercisable  beginning  on  July  17,  2019  and  expire  five  years  from  such  date.  The  warrants  began  trading  on  NASDAQ  on  July  23,  2019  under  the
symbol “XBIOW.” The Purchase Warrants also provide that if the weighted-average price of Common Stock on any trading day on or after 30 days after issuance is lower than
the then-applicable exercise price per share, each Purchase Warrant may be exercised, at the option of the holder, on a cashless basis for one share of Common Stock. Purchase
Warrants to purchase approximately 2.2 million shares of Common Stock were exercised on a cashless, one-for-one basis during the year ended December 31, 2019. As of
December  31,  2019,  there  were  approximately  258,000  Purchase  Warrants  outstanding.  Subsequent  to  December  31,  2019,  Purchase  Warrants  to  purchase  an  additional
219,000 shares of Common Stock were exercised on a cashless one-for-one basis.

F-27

 
  
 
 
  
  
 
 
 
 
 
 
 
On June 24, 2019, the Company entered into a consent agreement with certain holders of warrants to purchase shares of the Company’s Common Stock whose consent was
required to effect the Reverse Stock Split. In consideration of the holders’ consent, the Company agreed to issue the holders warrants (the “Consent Warrants”) to purchase
8,335 shares of the Company’s Common Stock, at an exercise price per share based on a volume weighted average price for the five trading days following the effectiveness of
the Reverse Stock Split. The Consent Warrants were issued on July 3, 2019 at an exercise price of $10.63. The Company evaluated the terms of the Consent Warrants and
determined that they should be classified as equity instruments. The grant date fair value of these warrants was estimated to be $7.62 per share, for a total of approximately
$64,000. The fair value of the Consent Warrants was estimated using a Black-Scholes model utilizing the following key valuation assumptions: the Company’s stock price, a
risk free rate of 1.83%, an expected life of 7 years and an expected volatility of 114.53%. The Company recorded approximately $64,000 as general and administrative expense
during  the  year  ended  December  31,  2019.  The  Consent  Warrants  were  subsequently  modified  to  reflect  an  exercise  price  of  $2.91  price  per  share  in  connection  with  the
Offering. As a result of this modification, the Company recognized a $2,000 expense that was netted against the proceeds of the Offering.

In March 2019, in connection with its registered direct offering, the Company offered to the purchasers prefunded warrants to purchase 42,417 shares of Common Stock. The
prefunded warrants were exercisable beginning on March 7, 2019 at an exercise price of $0.012 per share. The prefunded warrants were sold at a price of $23.988 per prefunded
warrant, which represents the per share purchase price for the shares less the $0.012 per share exercise price for each such prefunded warrant. The holders of the prefunded
warrants did not have the right to exercise any portion of the prefunded warrant if the holder (together with its affiliates) would beneficially own in excess of 9.99% of the
number of shares of our Common Stock outstanding immediately after giving effect to the exercise, as such percentage ownership is determined in accordance with the terms of
the  prefunded  warrants. All  of  these  prefunded  warrants  were  exercised  during  the  year  ended  December  31,  2019  resulting  in  net  proceeds  to  the  Company  of  $509.  In  a
concurrent private placement, the Company issued to the purchasers a warrant to purchase one share of the Company’s Common Stock for each share and prefunded warrant
(129,084 shares) purchased in the offering. These warrants have an exercise price of $27.00 per share, are exercisable beginning on September 8, 2019 and expire seven years
from such date. As of December 31, 2019, all of these warrants were outstanding.

In addition to the prefunded and purchase warrants issued in the March 2019 registered direct offering and the Offering, the Company has outstanding debt and equity financing
warrants to purchase an aggregate of 262,690 shares of Common Stock in connection with debt and equity financing arrangements as of December 31, 2019 and 2018 at a
weighted average exercise price of $51.97 and expiration dates ranging from July 2020 through November 2021. Except for the March 2019 registered direct offering and the
Offering, there were no debt and equity financing warrants granted or exercised during the year ended December 31, 2019. During the year ended December 31, 2018, debt and
equity financing warrants to purchase approximately 31,000 shares of Common Stock were exercised resulting in approximately $1.5 million of net proceeds to the Company.

11.

Share-Based Expense

Total share-based expense related to stock options, RSUs, Common Stock awards, and non-financing warrants was approximately $0.9 million and $1.4 million for the years
ended December 31, 2019 and 2018, respectively. See Note 10, Stockholders’ Equity for a discussion of the non-financing warrants.

Share-based expense is classified in the consolidated statements of comprehensive loss as follows:

Research and development expenses
General and administrative expenses

Year Ended December 31,

2019

2018

$

$

126,933   
726,584   
853,517   

$

$

203,030 
1,228,757 
1,431,787 

F-28

 
 
 
 
 
 
  
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
Stock Options

The Company grants stock option awards and RSUs to employees and non-employees with varying vesting terms under the Xenetic Biosciences, Inc. Amended and Restated
Equity Incentive Plan (“Stock Plan”). The Company measures the fair value of stock option awards using the Black-Scholes option pricing model, which uses the assumptions
noted in the tables below, including the risk-free interest rate, expected term, share price volatility, dividend yield and forfeiture rate. The risk-free interest rate is based upon the
U.S. Treasury yield curve in effect at the time of grant, with a term that approximates the expected life of the option. For stock options issued in 2019 and 2018 that qualify as
“plain  vanilla”  stock  options,  the  expected  term  is  based  on  the  simplified  method.  The  Company  has  a  limited  history  of  stock  option  exercises,  which  does  not  provide  a
reasonable basis for the Company to estimate the expected term of employee and non-employee stock options. For all other stock options, the Company estimates the expected
life  using  judgment  based  on  the  anticipated  research  and  development  milestones  of  the  Company’s  clinical  projects  and  behavior  of  the  Company’s  employees  and  non-
employees.  The  expected  life  of  non-employee  options  is  the  contractual  life  of  the  option.  The  expected  volatility  rates  are  estimated  based  on  the  actual  volatility  of  the
Company. To the extent Company data is not available for the full expected term of the awards the Company uses a price volatility based on a blended rate of the Company’s
historical volatility with that of comparable publicly traded companies with drug candidates in similar therapeutic areas and stages of nonclinical and clinical development to the
Company’s  drug  candidates.  The  Company  has  applied  an  expected  dividend  yield  of  0%  as  the  Company  has  not  historically  declared  a  dividend  and  does  not  anticipate
declaring a dividend during the expected life of the options. The Company accounts for forfeitures as they occur.

Employee Stock Options

During the years ended December 31, 2019 and 2018, 525,000 and 8,336 total stock options to purchase shares of Common Stock were granted by the Company, respectively.
The weighted average grant date fair value per option share was $1.24 and $31.51, respectively. No stock options were exercised during the years ended December 31, 2019 and
2018.

During  the  years  ended  December  31,  2019  and  2018,  27,831  and  43,712  total  stock  options  vested,  with  total  fair  values  of  approximately  $1.0  million  and  $1.6  million,
respectively. As of December 31, 2019, there was approximately $0.7 million of unrecognized share-based payments related to employee stock options that are expected to
vest. The Company expects to recognize this expense over a weighted-average period of approximately 2.4 years.

Key assumptions used in the Black-Scholes option pricing model for options granted to employees during the years ending December 31, 2019 and 2018 are as follows:

Weighted-average expected dividend yield (%)
Weighted-average expected volatility (%)
Weighted-average risk-free interest rate (%)
Weighted-average expected life of option (years)
Weighted-average exercise price ($)

Year Ended December 31,

2019

2018

–   
156.78   
1.71   
5.88   
1.31   

– 
118.03 
2.90 
5.90 
36.60 

F-29

 
 
 
  
 
  
  
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The following is a summary of employee stock option activity for the years ended December 31, 2019 and 2018:

Outstanding as of January 1, 2018
Granted
Expired
Outstanding as of December 31, 2018
Granted
Expired
Outstanding as of December 31, 2019

Vested or expected to vest as of December 31, 2019

Exercisable as of December 31, 2018
Exercisable as of December 31, 2019

Weighted-
average
exercise 
price

Weighted-
average
remaining
life 
(years)

Aggregate
intrinsic
value

Number of
shares

  $

148,381 
8,336 
(9,245)  

147,472 
525,000 
(10,413)  
662,059 

  $

662,059 

  $

96,031 
123,864 

  $
  $

47.90     
36.60     
68.76     
45.95     
1.31     
25.32     
10.88     

10.88     

49.34     
47.69     

8.53    $

5,273 

8.17    $

– 

9.34    $

9.34    $

7.92    $
7.10    $

66,125 

66,125 

– 
– 

A summary of the status of the Company’s non-vested employee stock option shares as of December 31, 2019, and the changes during the year ended December 31, 2019, is as
follows:

Balance as of January 1, 2019
Granted
Forfeited
Vested
Balance as of December 31, 2019

Restricted Stock Units

Number of
shares

51,439   
525,000   
(10,413)  
(27,831)  
538,195   

$
$
$
$
$

Weighted-
average
grant date 
fair value

31.92 
1.24 
14.44 
37.37 
2.05 

There are 4,167 RSUs outstanding as of December 31, 2019 and 2018, respectively. There were no RSU grants for the years ended December 31, 2019 and 2018. The RSUs
vest annually over a 3-year period and had a grant date fair value of $25.32. During the years ended December 31, 2019 and 2018, 1,389 RSUs were vested in each year and
none expired, respectively.

F-30

 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
      
  
 
 
 
      
  
 
 
 
 
 
 
 
 
      
  
 
 
 
      
  
 
 
 
 
 
  
 
 
      
      
  
 
 
 
 
 
  
 
 
      
      
  
 
 
 
 
  
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
Non-Employee Stock Options

Share-based expense related to stock options granted to non-employees is recognized as the services are rendered on a straight-line basis. The Company determined that the fair
value of the stock options is more reliably measurable than the fair value of the services received. Prior to the adoption of ASU 2018-07, compensation expense related to stock
options granted to non-employees was subject to re-measurement at each reporting period until the options vested. Commencing January 1, 2019, compensation expense related
to stock options to non-employees is no longer subject to re-measurement.

During  the  years  ended  December  31,  2019  and  2018,  15,500  and  834  total  stock  options  to  purchase  shares  of  Common  Stock  were  granted  by  the  Company  to  non-
employees, respectively.

During the year ended December 31, 2018, 834 total stock options vested, with total fair values of approximately $36,000. No non-employee stock options vested during the
year ended December 31, 2019. For the years ended December 31, 2019 and 2018, the Company recognized approximately $3,000 and $36,000, respectively, of compensation
expense related to non-employee options.

The following is a summary of non-employee stock option activity for the years ended December 31, 2019 and 2018:

Number of
shares

Weighted-
average
exercise 
price

Weighted-
average
remaining 
life
(years)

Aggregate
intrinsic 
value

Outstanding as of January 1, 2018
Granted
Expired
Outstanding as of December 31, 2018
Granted
Expired
Outstanding as of December 31, 2019

4,731    $
834     
(263)    
5,302     
15,500     
(242)    
20,560    $

90.49     
23.16     
219.00     
73.52     
1.08     
225.72     
17.09     

Vested or expected to vest as of December 31, 2019

20,560    $

17.09     

Exercisable as of December 31, 2018
Exercisable as of December 31, 2019

5,302    $
5,060    $

73.52     
66.15     

6.31    $

5.40    $

4.74    $

4.74    $

5.40    $
4.63    $

– 

– 

– 

– 

– 
– 

F-31

 
  
 
 
 
   
 
 
 
   
   
   
 
   
   
      
  
   
      
  
   
   
      
  
   
      
  
   
 
   
      
      
      
  
   
 
   
      
      
      
  
   
   
  
 
 
 
 
 
A summary of the status of the Company’s non-vested non-employee stock option shares as of December 31, 2019, and the changes during the year ended December 31, 2019
is as follows:

Balance as of January 1, 2019
Granted
Vested
Balance as of December 31, 2019

Common Stock Awards

Number of
shares

–   
15,500   
–   
15,500   

$
$
$
$

Weighted-
average
grant date
fair value

– 
0.94 
– 
0.94 

The Company granted Common Stock awards to non-employees in exchange for services provided. The Company measures the fair value of these awards using the fair value of
the services provided or the fair value of the awards granted, whichever is more reliably measurable. The fair value measurement date of these awards is generally the date the
performance of services is complete. The fair value of the awards is recognized as services are rendered on a straight-line basis. A summary of the Company’s Common Stock
awards granted and issued during the years ended December 31, 2019 and 2018 are as follows:

Balance as of January 1, 2018
Granted
Issued
Balance as of December 31, 2018
Granted
Issued
Balance as of December 31, 2019

Number of shares

5,237 
2,167 
– 
7,404 
9,026 
(7,836) 
8,594 

The Company granted 9,026 and 2,167 shares of Common Stock during the years ended December 31, 2019 and 2018, respectively, in exchange for professional services. As
all services were rendered in each respective period, expense related to Common Stock awards of approximately $47,000 and $70,000 was recognized during the years ended
December 31, 2019 and 2018, respectively. The balance of the Common Stock awards has not been issued as of December 31, 2019.

Joint Share Ownership Plan

As  of  December  31,  2019  and  2018,  there  were  approximately  27,000  JSOP  awards  issued  and  outstanding  to  two  former  senior  executives,  respectively.  Under  the  JSOP,
shares in the Company are jointly purchased at fair market value by the participating executives and the trustees of the JSOP trust, with such shares held in the JSOP trust. For
U.S. GAAP purposes the awards were valued as employee options and recorded as a reduction in equity as treasury shares until they are exercised by the employee. The JSOP
awards are fully vested and have no expiration date. There were no compensation charges during the years ended December 31, 2019 and 2018, respectively.

F-32

 
 
 
 
   
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
12.

Employee Benefit Plans

The Company has a defined contribution 401(k) savings plan (the “401(k) Plan”). The 401(k) Plan covers substantially all U.S. employees, and allows participants to defer a
portion of their annual compensation on a pre-tax basis or make post-tax contributions. Company contributions to the 401(k) Plan may be made at the discretion of the Board of
Directors. There were no company contributions to the 401(k) Plan during the years ended December 31, 2019 and 2018, respectively.

In  the  U.K.,  the  Company  has  adopted  a  defined  contribution  plan  (the  “UK  Plan”)  which  qualifies  under  the  rules  established  by  HM  Revenue  &  Customs.  The  UK  Plan
generally  allows  all  U.K.  employees  to  contribute  a  minimum  of  3%  of  salary  with  no  maximum  limit.  The  Company  contributes  to  the  plan  between  8%  and  12%  of  the
employee’s  salary,  depending  upon  seniority  of  the  employee.  The  Company,  at  its  discretion,  may  also  contribute  to  an  employee’s  personal  pension  plan.  There  were  no
contributions for the years ended December 31, 2019 and 2018, respectively.

13.

Commitments and Contingent Liabilities

Leases

The Company determines whether an arrangement is a lease at inception. In January 2019, the Company entered into a sublease and relocated its corporate headquarters from
Lexington,  Massachusetts  to  Framingham,  Massachusetts.  This  sublease  called  for  total  future  minimum  rent  payments  of  approximately  $52,000  at  inception  and  has  a
termination date of September 30, 2020, which corresponds to the underlying base lease. The Company does not have options to extend, termination options or material residual
value guarantees. The Company recorded a right-of-use (“ROU”) asset and corresponding lease liability on the consolidated balance sheet. The Company recognized a ROU
asset  and  a  lease  liability  of  approximately  $43,000  during  the  year  ended  December  31,  2019. As  the  sublease  does  not  provide  an  implicit  rate,  we  used  our  incremental
borrowing rate (10.2%) based on the information available at the lease’s commencement date in determining the present value of lease payments.

Supplemental cash flow information and non-cash activity related to our operating leases are as follows:

Operating cash flow information:
Cash paid for amounts included in the measurement of lease liabilities
Non-cash activity:
Right-of-use assets obtained in exchange for lease obligations

F-33

Year Ended
December 31,
2019

$

$

23,288 

43,330 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
  
 
 
 
 
 
 
Supplemental balance sheet information related to our operating leases is as follows:

Right-of-use assets
Current lease liabilities
Non-current lease liabilities

  Balance Sheet Classification
Prepaid expenses and other

  Accrued expenses and other current liabilities
  Other liabilities

December 31, 2019  
20,042 
20,042 
– 

$
$
$

The Company did not apply the provisions of ASU 2016-02 to the lease of its former headquarters in Lexington, Massachusetts or its office space lease in Miami, Florida as
they did not have a material impact on the Company’s consolidated financial statements or the Company’s accumulated deficit as of the beginning of 2019. The lease of the
Company’s former headquarters expired on January 31, 2019 and the Miami office space lease expired in November 2019. During the fourth quarter of 2019, the Company
renewed its Miami office lease for twelve-months to November 2020. As this lease has a term of 12-months at inception, the Company will account for it as an operating lease.
As of December 31, 2019, total minimum lease payments on this lease was approximately $19,000.

14.

Related Party Transactions

The  Company  has  entered  into  various  research,  development,  license  and  supply  agreements  with  Serum  Institute  and  Pharmsynthez  (as  well  as  SynBio,  a  wholly  owned
subsidiary of Pharmsynthez), each a related party whose relationship, ownership, and nature of transactions is disclosed within other sections of these footnotes.

During the third quarter of 2019, the Company entered into a sponsored research agreement with Pharmsynthez related to experiments identified by the Company to support its
efforts  as  it  prepares  for  initial  tech  transfer  of  the  XCART  methods  to  a  future  academic  collaborator.  Under  the  agreement,  the  Company  made  a  $350,000  payment  to
Pharmsynthez during the third quarter of 2019, which is refundable on pro rata basis if the project is terminated prematurely as a result of Pharmsynthez failing to perform the
work. The Company expensed approximately $155,000 related to this agreement during the year ended December 31, 2019. As of December 31, 2019, approximately $195,000
was recorded as an advanced payment and included in Prepaid expenses and other on the December 31, 2019 consolidated balance sheet.

On  July  19,  2019,  the  Company  acquired  the  XCART  technology  platform  from  Hesperix  and  OPKO.  Dr.  Genkin  is  a  director  and  significant  shareholder  of  Hesperix.  In
addition,  the  Company  agreed  to  repay  an  approximate  $225,000  loan  that  Dr.  Genkin  entered  into  with  Hesperix.  Mr. Adam  Logal,  one  of  our  directors,  is  Senior  Vice
President, Chief Financial Officer, Chief Accounting Officer and Treasurer of OPKO Health, Inc., the parent company of OPKO.

In October 2019, the Company entered into the Pharmsynthez Loan pursuant to which the Company advanced Pharmsynthez an aggregate principal amount of up to $500,000 to
be used for the development of a specific product under the Co-Development Agreement. The Pharmsynthez Loan has a term of 15-months and accrues interest at a rate of 10%
per annum. The Pharmsynthez Loan is guaranteed by all of the operating subsidiaries of Pharmsynthez, including SynBio and AS Kevelt, and is secured by all of the equity
interests of the Company owned by Pharmsynthez and SynBio. The Company recognized approximately $9,000 of interest income related to this loan during the twelve-months
ended December 31, 2019.

Please  refer  to  Note  3, Significant  Strategic  Drug  Development  Collaborations  –  Related  Parties,  and  Note  10, Stockholder’s  Equity,  for  details  on  arrangements  with
collaboration partners that are also related parties.

15.

Subsequent Events

The  Company  performed  a  review  of  events  subsequent  to  the  balance  sheet  date  through  the  date  the  financial  statements  were  issued  and  determined  that,  other  than  as
disclosed in Note 10, Stockholder’s Equity, there were no such events requiring recognition or disclosure in the financial statements.

F-34

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 ITEM 9 – CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

Not applicable.

 ITEM 9A – CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures as
defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), as of the end of the period covered by this Annual
Report on Form 10-K.

Based on this evaluation our management, including our Chief Executive Officer and Chief Financial Officer, concluded that, as of December 31, 2019, our disclosure controls
and procedures are designed at a reasonable assurance level and are 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 that such information is
accumulated and communicated to our management, including our principal executive and principal financial officers, or persons performing similar functions, as appropriate,
to allow timely decisions regarding required disclosure.

Management’s Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Rule 13a-15(f) of the Exchange
Act.  Management,  under  the  supervision  and  with  the  participation  of  our  Chief  Executive  Officer  and  Chief  Financial  Officer,  conducted  an  assessment  of  the  design  and
effectiveness of our internal control over financial reporting as of the end of the period covered by this Annual Report on Form 10-K. In making its assessment of internal
control  over  financial  reporting,  management  used  the  criteria  set  forth  by  the  Committee  of  Sponsoring  Organizations  (“COSO”)  of  the  Treadway  Commission  in Internal
Control — Integrated Framework (2013 Framework). Based on this assessment, our management concluded that, as of the end of the period covered by this Annual Report on
Form 10-K, our internal control over financial reporting was effective based on the criteria set forth by COSO of the Treadway Commission in Internal Control — Integrated
Framework.

This annual report does not include an attestation report of our registered public accounting firm regarding internal control over financial reporting. Management’s report was
not subject to attestation by our registered public accounting firm pursuant to an exemption for non-accelerated filers set forth in Section 989G of the Dodd-Frank Wall Street
Reform and Consumer Protection Act.

Changes in Internal Control Over Financial Reporting

There have been no changes in our internal control over financial reporting that occurred during the quarterly period covered by this Annual Report on Form 10-K that have
materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

72

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Limitations on Effectiveness of Controls and Procedures

In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can
provide only reasonable assurance of achieving the desired control objectives. The Company’s internal control over financial reporting includes those policies and procedures
that:

(1)
(2)

(3)

Pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the Company’s assets;
Provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting
principles, and that the Company’s receipts and expenditures are being made only in accordance with authorizations of the Company’s management and directors; and
Provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the Company’s assets that could have a material
effect on the financial statements.

Management, including the Company’s principal executive and principal financial officers, or persons performing similar functions, does not expect that the Company’s internal
controls will prevent or detect all errors and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the
objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be
considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of internal controls can provide absolute assurance that all control
issues and instances of fraud, if any, have been detected. Also, any evaluation of the effectiveness of controls in future periods are subject to the risk that those internal controls
may become inadequate because of changes in business conditions, or that the degree of compliance with the policies or procedures may deteriorate.

 ITEM 9B – OTHER INFORMATION

None.

73

 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 ITEM 10 – DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

 PART III

The information required by this Item will be set forth in the Company’s definitive proxy statement or information statement to be filed with the SEC in connection with the
Company’s 2020 Annual Meeting of Stockholders within 120 days of the end of the Company’s fiscal year ended December 31, 2019 and is incorporated herein by reference,
or will be included in an amendment to this Annual Report on Form 10-K.

 ITEM 11 – EXECUTIVE COMPENSATION

The information required by this Item will be set forth in the Company’s definitive proxy statement or information statement to be filed with the SEC in connection with the
Company’s 2020 Annual Meeting of Stockholders within 120 days of the end of the Company’s fiscal year ended December 31, 2019 and is incorporated herein by reference,
or will be included in an amendment to this Annual Report on Form 10-K.

 ITEM 12 – SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

The information required by this Item will be set forth in the Company’s definitive proxy statement or information statement to be filed with the SEC in connection with the
Company’s 2020 Annual Meeting of Stockholders within 120 days of the end of the Company’s fiscal year ended December 31, 2019 and is incorporated herein by reference,
or will be included in an amendment to this Annual Report on Form 10-K.

 ITEM 13 – CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The information required by this Item will be set forth in the Company’s definitive proxy statement or information statement to be filed with the SEC in connection with the
Company’s 2020 Annual Meeting of Stockholders within 120 days of the end of the Company’s fiscal year ended December 31, 2019 and is incorporated herein by reference,
or will be included in an amendment to this Annual Report on Form 10-K.

 ITEM 14 – PRINCIPAL ACCOUNTING FEES AND SERVICES

The information required by this Item will be set forth in the Company’s definitive proxy statement or information statement to be filed with the SEC in connection with the
Company’s 2020 Annual Meeting of Stockholders within 120 days of the end of the Company’s fiscal year ended December 31, 2019 and is incorporated herein by reference,
or will be included in an amendment to this Annual Report on Form 10-K.

74

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 ITEM 15 – EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(a)

The following is filed as part of this Annual Report on Form 10-K:

 PART IV

·

·

Consolidated  Financial  Statements:  The consolidated financial statements and report of independent registered public accounting firm required by this item are
included in Part II, Item 8;
Financial Statement Schedules:  All schedules are omitted because they are not applicable or not required, or because the required information is shown either in the
consolidated financial statements or in the notes thereto.

(b)

Exhibits: The exhibits which are filed or furnished with this Annual Report on Form 10-K or which are incorporated herein by reference are set forth in the Exhibit
Index beginning on page 76 which is incorporated herein by reference.

 ITEM 16 – FORM 10-K SUMMARY

Not applicable.

75

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit
No.

Exhibit Index

 EXHIBIT INDEX

2.1
2.2

2.3
2.4
2.5
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8

3.9

3.10
3.11
4.1

4.2
4.3

4.4
4.5

4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13

  Order of the High Court of Justice, Chancery Division, entered January 23, 2014
  Share Purchase Agreement between Xenetic Biosciences, Inc., Hesperix SA, certain Sellers

and Alexey Andreevich Vinogradov, dated March 1, 2019

  First Amendment to Share Purchase Agreement dated June 7, 2019
  Second Amendment to Share Purchase Agreement dated June 24, 2019
  Third Amendment to Share Purchase Agreement dated July 15, 2019
  Articles of Incorporation
  Certificate of Amendment to Articles of Incorporation
  Certificate of Amendment to Articles of Incorporation
  Certificate of Amendment to Articles of Incorporation
  Certificate of Change Pursuant to NRS 78.209
  Certificate of Amendment to Articles of Incorporation
  Amended and Restated Bylaws
  Form of Amended and Restated Certificate of Designation of Preferences, Rights and

Limitations of Series A Preferred Stock

  Second Amended and Restated Certificate of Designation of Preferences, Rights and

Limitations of Series B Preferred Stock

  Certificate of Change Pursuant to NRS 78.209
  Certificate of Amendment to Articles of Incorporation
  Description of Registrant’s Securities Registered Pursuant to Section 12 of the Securities

Exchange Act of 1934

  Form of Common Stock Certificate of the Registrant
  Xenetic Biosciences, Inc. Shareholder Voting Agreement dated October 26, 2016 between

Xenetic Biosciences Inc. and SynBio, LLC

  SynBio LLC Warrant to Purchase Common Stock of Xenetic Bioscience, Inc.
  Serum Institute of India Limited Warrant to Purchase Common Stock of Xenetic Bioscience,

Inc.

  Firdaus Jal Dastoor Warrant to Purchase Common Stock of Xenetic Bioscience, Inc.
  Form of Common Stock Purchase Warrant
  Form of Management Common Stock Purchase Warrant
  Form of Amended and Restated Common Stock Purchase Warrant
  Form of Common Stock Purchase Warrant
  Form of Common Stock Purchase Warrant
  Form of Ten Percent (10%) Senior Secured Convertible Promissory Note
  Form of Ten Percent (10%) Junior Secured Convertible Promissory Note – Due Deferral

End Date

Form

8-K
8-K/A

8-K
8-K
8-K
S-1
8-K
8-K
10-Q
10-Q
8-K
8-K
S-1/A

S-1/A

8-K
8-K

S-1/A
S-1/A

10-K
10-K

10-K
8-K
8-K
8-K
8-K
S-1/A
8-K
8-K

Filing Date

01/29/2014
05/13/2019

06/13/2019
06/24/2019
07/16/2019
11/21/2011
02/12/2013
02/27/2013
01/10/2014
01/10/2014
09/30/2015
02/27/2017
10/27/2016

10/31/2016 

06/24/2019
06/24/2019

07/14/2016
10/27/2016

04/15/2015
04/15/2015

04/15/2015
11/16/2015
11/16/2015
11/16/2015
07/08/2016
10/31/2016
11/16/2015
07/08/2016

Exhibit
Number

Filed
Herewith

2.1
2.1

2.1
2.1
2.1
3.1
3.1
3.1
3.1
3.2
3.1
3.1
3.8

3.9

3.1
3.2

4.1
4.2

10.2
10.03

10.04
10.3
10.4
10.6
10.3
10.53
10.2
10.2

X

76

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
   
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit
Number
10.5

Filed
Herewith

10.3

10.8
4.1
4.2
4.1
4.1
4.2
9.1

9.1

9.2

9.3

10.5

10.6

Exhibit
No.
4.14

  Form of Amended and Restated Ten Percent (10%) Senior Secured Convertible Promissory

Exhibit Index

Note

4.15

  Registration Rights Agreement, dated July 1, 2015, between Xenetic Bioscience, Inc. and OJSC

Pharmsynthez

4.16
4.17
4.18
4.19
4.20
4.21
10.1

  Form of First Amendment to Registration Rights Agreement
  Form of Pre-Funded Common Stock Purchase Warrant
  Form of Common Stock Purchase Warrant
  Form of Common Stock Purchase Warrant
  Form of Pre-Funded Common Stock Purchase Warrant
  Form of Common Stock Purchase Warrant
  Possible Offer for Xenetic Biosciences plc by General Sales & Leasing, Inc., dated October 21,

2013

Form
8-K

8-K

8-K
8-K
8-K
8-K
8-K
8-K
8-K

Filing Date
11/16/2015

07/08/2015

11/16/2015
03/07/2019
03/07/2019
06/25/2019
07/22/2019
07/22/2019
10/21/2013

10.2

  Recommended Acquisition of Xenetic Biosciences plc by General Sales & Leasing, Inc.

8-K/A

11/25/2013

including Scheme of Arrangement

10.3

  Announcement of Recommended Offer by General Sales and Leasing, Inc. for shares of Xenetic

8-K

11/25/2013

Biosciences plc, dated November 12, 2013

10.4

  Agreement of Conveyance, Transfer and Assignment of Subsidiaries and Assumption of

10-K

11/27/2013

Obligations dated November 12, 2013 between General Sales Inc., Leasing, Inc., Oxbridge
Technology Partners, SA, Shift It Media Company and General Aircraft, Inc.

10.5†

  Form of Rules of the Lipoxen plc Unapproved Share Option Plan dated July 18, 2000 (as

10.6†

10.7†

amended by a resolution of the board of directors of Lipoxen plc passed on March 14, 2006)
  Form of Xenetic Biosciences plc 2007 Share Option Scheme and US Addendum (as established
in 2007 and by resolution of shareholders in 2010 and awarded by board resolution in 2012)
  Form of Amended and Restated Xenetic Biosciences, Inc. Equity Incentive Plan, effective as of

December 4, 2019

10-K

10-K

04/15/2014

04/15/2014

DEF14A  

11/08/2019

  Appendix A  

10.8

  Stock Purchase Agreement, dated January 29, 2014, between Xenetic Biosciences, Inc. and

10-K/A  

02/18/2015

Baxter Healthcare SA

10.9

  Stock Purchase Agreement Amendment No. 1, dated February 14, 2014, between Xenetic

 10-K/A  

02/18/2015

Biosciences, Inc. and Baxter Healthcare SA

10.10#

10.11#

  Exclusive Research, Development and License Agreement, dated August 15, 2005, between
Lipoxen Technologies Limited, Baxter Healthcare SA and Baxter Healthcare Corporation
  Letter Agreement, dated December 11, 2006, between Lipoxen Technologies Limited, Baxter

10-K/A  

02/18/2015

10-K/A  

02/18/2015

Healthcare SA, Baxter Healthcare Corporation and Serum Institute of India Limited

10.12#

  Amendment to the Exclusive Research, Development and License Agreement, dated December

10-K/A  

02/18/2015

10.08

10.09

10.10

10.11

10.12

13, 2006, between Lipoxen Technologies Limited, Baxter Healthcare SA and Baxter
Healthcare Corporation

77

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit
No.
10.13#

10.14#

Exhibit Index
  Second Amendment to the Exclusive Research, Development and License Agreement,
dated May 28, 2009, between Lipoxen Technologies Limited, Baxter Healthcare SA
and Baxter Healthcare Corporation

  Amendment Number Four to the Exclusive Research, Development and License
Agreement, dated August 10, 2010, between Lipoxen Technologies Ltd., Baxter
Healthcare SA and Baxter Healthcare Corporation

Form
10-K/A  

Filing Date
02/18/2015

Exhibit
Number
10.13

Filed
Herewith

10-K/A  

02/18/2015

10.14

10.15#

  Amendment Number Five to the Exclusive Research, Development and License

10-K/A  

02/18/2015

10.15

Agreement, dated September 15, 2010, between Lipoxen Technologies Ltd., Baxter
Healthcare SA and Baxter Healthcare Corporation

10.16#

  Form of Sixth Amendment to the Exclusive Research, Development and License

10-K/A  

02/18/2015

10.16

Agreement, dated January 29, 2014, between Lipoxen Technologies Limited, Baxter
Healthcare SA and Baxter Healthcare Corporation

10.17#

  Agreement on Co-Development and the Terms of Exclusive License dated August 4,

10-K/A  

02/18/2015

2011 between Lipoxen plc, Lipoxen Technologies LTD and SynBio LLC

10.18#

  Subscription Agreement in respect of ordinary shares in the capital of Lipoxen plc

10-K/A  

02/18/2015

dated August 4, 2011 between SynBio LLC and Lipoxen plc

10.19#

  Collaboration, License and Development Agreement, dated November 11, 2009,

10-K/A  

02/18/2015

between Pharmsynthez ZAO and Lipoxen Technologies Ltd.

10.20#

  Exclusive Patent and Know How License and Manufacturing Agreement, dated

10-K/A  

02/18/2015

August 4, 2011, between Lipoxen plc, Lipoxen Technologies Ltd and Serum Institute
of India Limited

10.21

  Intellectual Property Assignment between Dmitry Genkin, FDS Pharma, Lipoxen

10-K

04/15/2015

Technologies Limited and Xenetic Biosciences Inc.

10.22

  Securities Purchase Agreement, dated May 2015, between Xenetic Bioscience, Inc.

and OJSC Pharmsynthez

10.23

  Security Agreement dated July 1, 2015, between Xenetic Bioscience, Inc. and OJSC

Pharmsynthez

10.24

  Subsidiary Guarantee dated July 1, 2015, between Xenetic Bioscience, Inc. and OJSC

Pharmsynthez

10.25
10.26#

10.27

10.28
10.29
10.30
10.31

  Form of Assignment and Assumption Agreement
  Settlement Agreement, dated August 27, 2015, between Xenetic Biosciences (UK)
Limited, Xenetic Biosciences, Inc., Lipoxen Technologies Limited and Colin Hill
  Form of Asset Purchase Agreement, dated as of November 13, 2015, by and among
Xenetic Biosciences, Inc., Lipoxen Technologies, LTD, a U.K. corporation, AS
Kevelt, an Estonian company and OJSC Pharmsynthez

  Form of First Amendment to Securities Purchase Agreement
  Form of First Amendment to Security Agreement
  Form of First Amendment to Subsidiary Guarantee
  Form of Transition, Services and Resupply Agreement by and among Xenetic

Bioscience, Inc., AS Kevelt and OJSC Pharmsynthez

8-K

8-K

8-K

8-K
8-K

8-K

8-K
8-K
8-K
8-K

07/08/2015

07/08/2015

07/08/2015

07/08/2015
09/02/2015

11/16/2015

11/16/2015
11/16/2015
11/16/2015
11/16/2015

10.18

10.19

10.20

10.21

10.1

10.1

10.4

10.5

10.7
10.1

10.1

10.7
10.9
10.10
10.11

78

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit
No.
10.32†

  Employment Agreement, dated December 1, 2016, between Xenetic Biosciences, Inc. and

Jeffrey Eisenberg

Exhibit Index

10.33†

  Employment Agreement, dated January 1, 2017 between Xenetic Biosciences, Inc. and

Curtis Lockshin

10.34†

  Employment Agreement, dated March 23, 2017 between Xenetic Biosciences, Inc. and

James F. Parslow

10.35†

  Form of Indemnity Agreement by and between Xenetic Biosciences, Inc. and each of its

directors and executive officers

10.36†

  Amended and Restated Employment Agreement, dated October 26, 2017, between Xenetic

Biosciences, Inc. and Jeffrey Eisenberg

10.37#

  Right to Sublicense Agreement, dated October 27, 2017, by and among Xenetic
Biosciences, Inc., Baxalta Incorporated, Baxalta US Inc., and Baxalta GmbH

10.38†

  Settlement Agreement, dated November 3, 2017, by and among M. Scott Maguire, Xenetic

Biosciences (UK) Limited and Lipoxen Technologies, Limited

Form
8-K

8-K

8-K

10-Q

10-K

10-K

10-K

Filing Date
12/6/2016

01/04/2017

04/04/2017

08/14/2017

03/30/2018

03/30/2018

03/30/2018

10.39

  Assignment Agreement between Xenetic Biosciences, Inc. and OPKO Pharmaceuticals,

8-K/A

05/20/2019

LLC, dated March 1, 2019

10.40
10.41
10.42
10.43

  First Amendment to Assignment Agreement dated June 7, 2019
  Second Amendment to Assignment Agreement dated June 24, 2019
  Third Amendment to Assignment Agreement dated July 15, 2019
  Voting Agreement between Xenetic Biosciences, Inc. and PJSC Pharmsynthez, dated March

1, 2019

10.44

  Voting Agreement between Xenetic Biosciences, Inc. and OPKO Pharmaceuticals, LLC,

dated March 1, 2019

10.45

  Voting Agreement between Xenetic Biosciences, Inc. and Dr. Dmitry Dmitrievich Genkin,

dated March 1, 2019

10.46

  Form of Securities Purchase Agreement entered into as of March 5, 2019, by and among

Xenetic Biosciences, Inc. and those purchase parties thereto.

10.47

  Form of Consent Agreement by and among Xenetic Biosciences, Inc. and certain purchasers

dated June 24, 2019

10.48

  Warrant Agency Agreement, between Xenetic Biosciences, Inc. and Empire Stock Transfer,

Inc. dated July 19, 2019

10.49

  Consent Agreement by and among Xenetic Biosciences, Inc. and certain purchasers dated

July 16, 2019

10.50†

  Letter Agreement re. Appointment of Non – Employee, Independent Director of Xenetic

Biosciences, Inc. for Grigory G. Borisenko, effective as of September 26, 2019

10.51†

  Form of Letter Agreement re. Appointment of Non – Employee, Independent Director of

Xenetic Biosciences, Inc.

10.52†
10.53†

  Form of Xenetic Biosciences, Inc. Stock Option Grant Notice
  Xenetic Biosciences, Inc. Stock Option Grant Notice, dated December 4, 2019, between

Jeffrey Eisenberg and Xenetic Biosciences, Inc.

8-K
8-K
8-K
8-K

8-K

8-K

8-K

8-K

8-K

8-K

06/13/2019
06/24/2019
07/16/2019
03/04/2019

03/04/2019

03/04/2019

03/07/2019

06/25/2019

07/22/2019

07/16/2019

Exhibit
Number
10.1

Filed
Herewith

10.1

10.1

10.1

10.45

10.46

10.47

10.1

10.1
10.1
10.1
10.1

10.2

10.3

10.1

10.1

10.1

10.1

X

X

X
X

79

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit No.
21.1
23.1
24.1
31.1
31.2
32.1*

Exhibit Index

Form

Filing Date

Exhibit
Number

  List of Subsidiaries
  Consent of Marcum LLP
  Power of Attorney (included on signature page)
  Certification of Principal Executive Officer, as required by Rule 13a-14(a) or Rule 15d-14(a) 
  Certification of Principal Financial Officer, as required by Rule 13a-14(a) or Rule 15d-14(a)  
Certification of Principal Executive Officer and Principal Financial Officer, as required by
Rule 13a-14(b) or Rule 15d-14(b) and Section 1350 of Chapter 36 of Title 18 of the United
States Code (18 U.S.C. §1350)

  XBRL Instance Document.

101.INS
101.SCH   XBRL Taxonomy Extension Schema Document.
101.CAL   XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF   XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB   XBRL Taxonomy Extension Label Linkbase Document.
101.PRE   XRBL Taxonomy Extension Presentation Linkbase Document.

Filed
Herewith
X
X
X
X
X
X

X
X
X
X
X
X

†
#

*

Indicates a management contract or any compensatory plan, contract or arrangement.
Application has been made with the Securities and Exchange Commission to seek confidential treatment of certain confidential material contained in this document.
Omitted material for which confidential treatment has been requested has been filed separately with the Securities and Exchange Commission.
This certification is deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section,
nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the

undersigned, thereunto duly authorized.

 SIGNATURES

Date: March 26, 2020

By:

XENETIC BIOSCIENCES, INC.

/s/ JEFFREY F. EISENBERG
Jeffrey F. Eisenberg
Chief Executive Officer

 POWER OF ATTORNEY AND SIGNATURES

We, the undersigned officers and directors of Xenetic Biosciences, Inc., hereby severally constitute and appoint Jeffrey F. Eisenberg, our true and lawful attorney, with
full power to him, to sign for us in our names in the capacities indicated below, all amendments to this report, and generally to do all things in our names and on our behalf in
such capacities to enable Xenetic Biosciences, Inc. to comply with the provisions of the Securities Exchange Act of 1934, as amended, and all requirements of the Securities and
Exchange Commission.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the

capacities indicated below on the 26th day of March, 2020.

Signature

Title(s)

/s/ JEFFREY F. EISENBERG
Jeffrey F. Eisenberg

Chief Executive Officer and Director
(Principal Executive Officer)

/s/ JAMES PARSLOW
James Parslow

/s/ GRIGORY BORISENKO
Grigory Borisenko

/s/ JAMES CALLAWAY
James Callaway

/s/ FIRDAUS JAL DASTOOR, FCS
Firdaus Jal Dastoor, FCS

/s/ DMITRY GENKIN
Dmitry Genkin

/s/ ROGER KORNBERG
Roger Kornberg

/s/ ADAM LOGAL
Adam Logal

/s/ ALEXEY VINOGRADOV
Alexey Vinogradov

Chief Financial Officer
(Principal Financial Officer and Principal Accounting Officer)

Director

Director

Director

Director

Director

Director

Director

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
Exhibit 4.1

DESCRIPTION OF THE REGISTRANT’S SECURITIES
REGISTERED PURSUANT TO SECTION 12 OF THE
SECURITIES EXCHANGE ACT OF 1934

When used herein, the terms the “Company”, “we,” “our,” and “us” refer to Xenetic Biosciences, Inc.

The following summary describes our capital stock and the material provisions of our articles of incorporation, as amended, and our amended and restated bylaws. Because the
following  is  only  a  summary,  it  does  not  contain  all  of  the  information  that  may  be  important  to  you.  For  a  complete  description,  you  should  refer  to  our  articles  of
incorporation, as amended, and our amended and restated bylaws, copies of which are incorporated by reference as exhibits to our Annual Report on Form 10-K for the year
ended December 31, 2019 of which this Exhibit 4.1 is a part.

DESCRIPTION OF CAPITAL STOCK

Our charter provides that we may issue up to 12,500,000 shares of Common Stock, $0.001 par value per share (the “Common Stock”), and 10,000,000 shares of preferred stock,
$0.001 par value per share, 1,000,000 of which are designated as Series A Preferred Stock, 2,500,000 of which are designated as Series B Preferred Stock, and 6,500,000 of
which shares of preferred stock are undesignated. As of December 31, 2019, there were outstanding: 6,065,441 shares of Common Stock, 970,000 shares of Series A Preferred
Stock, 1,804,394 shares of Series B Preferred Stock. Under Nevada law, stockholders are not generally liable for our debts or obligations.

Voting Rights

DESCRIPTION OF COMMON STOCK

Common Stock is entitled to one vote per share on all matters submitted to a vote of the stockholders, including the election of directors. Except as otherwise required by law or
provided in any resolution adopted by our board of directors with respect to any series of preferred stock, the holders of our Common Stock will possess all voting power.
Generally, all matters to be voted on by stockholders must be approved by a majority (or, in the case of election of directors, by a plurality) of the votes entitled to be cast by all
shares of our Common Stock that are present in person or represented by proxy, subject to any voting rights granted to holders of any preferred stock. Our stockholders do not
have  cumulative  voting  rights  in  the  election  of  directors.  Holders  of  our  Common  Stock  representing  50%  of  our  capital  stock  issued,  outstanding  and  entitled  to  vote,
represented in person or by proxy, are necessary to constitute a quorum at any meeting of our stockholders. A vote by the holders of a majority of our outstanding shares is
required to effectuate certain fundamental corporate changes such as liquidation, merger or an amendment to our charter.

Dividends

Subject to the preferential rights of any other class or series of shares of stock created from time to time by our board of directors from time to time, the holders of shares of our
Common Stock will be entitled to such cash dividends, non-cumulative, as may be declared from time to time by our board of directors from funds available therefore. We will
not pay any dividends on shares of Common Stock (other than dividends in the form of Common Stock) unless and until such time as we pay dividends on our preferred stock
on an as-converted basis.

1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Liquidation

Subject to the preferential rights of any other class or series of shares of stock created from time to time by our board of directors, upon liquidation, dissolution or winding up,
the holders of shares of our Common Stock will be entitled to share ratably in the assets of the Company available for distribution to such holders.

Rights and Preferences

In the event of any merger or consolidation with or into another company in connection with which shares of our Common Stock are converted into or exchangeable for shares
of  stock,  other  securities  or  property  (including  cash),  all  holders  of  our  Common  Stock  will  be  entitled  to  receive  the  same  kind  and  amount  of  shares  of  stock  and  other
securities and property (including cash). Holders of our Common Stock have no pre-emptive, conversion, subscription or other rights and there are no redemption or sinking
fund provisions applicable to our Common Stock. The rights, preferences and privileges of the holders of our Common Stock are subject to and may be adversely affected by
the rights of the holders of shares of any series of our preferred stock that we may designate in the future.

Fully Paid and Nonassessable

All of our outstanding shares of Common Stock are duly authorized, validly issued, fully paid and nonassessable.

Exchange Listing

Our Common Stock is traded on the NASDAQ Capital Market under the trading symbol “XBIO.”

DESCRIPTION OF PURCHASE WARRANTS

The  following  summary  of  certain  terms  and  provisions  of warrants  to  purchase  2,300,000  shares  of  the  Common  Stock  (the  “Purchase  Warrants”) is  not  complete  and  is
subject to, and qualified in its entirety by the provisions of, the Purchase Warrants. For a complete description, you should refer to the form of Purchase Warrant, a copy of
which is incorporated by reference as an exhibit to our Annual Report on Form 10-K for the year ended December 31, 2019 of which this Exhibit 4.1 is a part.

Exercisability

The Purchase Warrants are exercisable beginning on the date of original issuance and at any time up to the date that is five years after their original issuance. The Purchase
Warrants  will  be  exercisable,  at  the  option  of  each  holder,  in  whole  or  in  part  by  delivering  to  us  a  duly  executed  exercise  notice  and,  at  any  time  a  registration  statement
registering the issuance of the shares of Common Stock underlying the Purchase Warrants under the Securities Act of 1933, as amended (the “Securities Act”) is effective and
available  for  the  issuance  of  such  shares,  or  an  exemption  from  registration  under  the  Securities Act  is  available  for  the  issuance  of  such  shares,  by  payment  in  full  in
immediately  available  funds  for  the  number  of  shares  of  Common  Stock  purchased  upon  such  exercise.  If  a  registration  statement  registering  the  issuance  of  the  shares  of
Common  Stock  underlying  the  Purchase  Warrants  under  the  Securities Act  is  not  effective  or  available  and  an  exemption  from  registration  under  the  Securities Act  is  not
available for the issuance of such shares, the holder may, in its sole discretion, elect to exercise the Purchase Warrant through a cashless exercise, in which case the holder
would receive upon such exercise the net number of shares of Common Stock determined according to the formula set forth in the Purchase Warrant. In addition, the Purchase
Warrant may be exercised on a cashless basis beginning 30 days from the pricing of the Purchase Warrant (“Cashless Date”) if the VWAP (as defined in the Purchase Warrant)
of the Common Stock on any Trading Day (as defined in the Purchase Warrant) on or after the Cashless Date fails to exceed the exercise price in effect on such date (as may be
subject to adjustment). The number of shares of Common Stock issuable in such cashless exercise shall equal the number of shares of Common Stock that would be issuable
upon exercise of the Purchase Warrant in accordance with it terms if such exercise were by means of a cash exercise. No fractional shares of Common Stock will be issued in
connection with the exercise of a Purchase Warrant. In lieu of  fractional  shares,  we  will  pay  the  holder  an  amount  in  cash  equal  to  the  fractional  amount  multiplied  by  the
exercise price.

2

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exercise Limitation

A holder will not have the right to exercise any portion of the Purchase Warrant if the holder (together with its affiliates) would beneficially own in excess of 4.99% (or, upon
election  of  the  holder,  9.99%)  of  the  number  of  shares  of  our  Common  Stock  outstanding  immediately  after  giving  effect  to  the  exercise,  as  such  percentage  ownership  is
determined  in  accordance  with  the  terms  of  the  Purchase  Warrants.  However,  any  holder  may  increase  or  decrease  such  percentage,  provided  that  any  increase  will  not  be
effective until the 61st day after such election.

Exercise Price

The  Purchase  Warrants  will  have  an  exercise  price  of  $13.00  per  share.  The  exercise  price  is  subject  to  appropriate  adjustment  in  the  event  of  certain  stock  dividends  and
distributions, stock splits, stock combinations, reclassifications or similar events affecting our Common Stock and also upon any distributions of assets, including cash, stock or
other property to our stockholders.

Transferability

Subject to applicable laws, the Purchase Warrants may be offered for sale, sold, transferred or assigned without our consent.

Exchange Listing

The Purchase Warrants are traded on the NASDAQ Capital Market under the symbol “XBIOW.”

Fundamental Transactions

If a fundamental transaction occurs, then the successor entity will succeed to, and be substituted for us, and may exercise every right and power that we may exercise and will
assume all of our obligations under the Purchase Warrants with the same effect as if such successor entity had been named in the Purchase Warrant itself. If holders of our
Common Stock are given a choice as to the securities, cash or property to be received in a fundamental transaction, then the holder shall be given the same choice as to the
consideration it receives upon any exercise of the Purchase Warrant following such fundamental transaction.

Rights as a Stockholder

Except as otherwise provided in the Purchase Warrants or by virtue of such holder’s ownership of shares of our Common Stock, the holder of a Purchase Warrant does not have
the rights or privileges of a holder of our Common Stock, including any voting rights, until the holder exercises the Purchase Warrant.

3

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ANTI-TAKEOVER EFFECTS

Certain provisions of the Company’s articles of incorporation, as amended, the Company’s amended and restated bylaws, and the Nevada Revised Statutes (the “NRS”) may be
deemed  to  have  an  anti-takeover  effect.  Such  provisions  may  delay,  deter  or  prevent  a  tender  offer  or  takeover  attempt  that  a  stockholder  might  consider  to  be  in  that
stockholder’s best interests, including attempts that might result in a premium over the market price for the shares held by stockholders.

The NRS permits, if authorized by the Company’s articles of incorporation, as amended, the issuance of blank check preferred stock with preferences, limitations and relative
rights determined by a corporation’s board of directors without stockholder approval.

The Company’s articles of incorporation, as amended, currently authorizes the issuance of blank check preferred stock, of which 6,500,000 preferred shares are available for
future issuance in one or more series to be issued from time to time.

The Company has opted out of NRS 78.411 to 78.444, which prohibits Nevada corporations from engaging in any “combination” with an “interested stockholder” for a period
of two years following the date that the stockholder became an “interested stockholder” unless prior to that time the Board of Directors of the corporation approved either the
“combination” or the transaction which resulted in the stockholder becoming an “interested stockholder.”

Each of the foregoing may have the effect of preventing or rendering more difficult or costly, the completion of a takeover transaction that stockholders might view as being in
their best interests.

4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 10.50

Effective as of September 26, 2019

Mr. Grigory G. Borisenko

6-20 Pobedy Street

Apartment 7

Moscow Region

Town of Khimki, Russia

Re: Board of Directors Appointment
Dear Mr. Borisenko:

Xenetic Biosciences, Inc.
40 Speen Street,
Suite 102
Framingham, MA 01701
t 781-778-7720
e info@xeneticbio.com

This Letter Agreement (the "Agreement") is to confirm the terms of your proposed appointment on September 26, 2019 as a non-employee, independent Director of the Board
of Directors (the "Board") of Xenetic Biosciences, Inc. (the "Company").

Overall, in terms of time commitment, we expect your attendance at all the meetings of the Board and meetings of such committees of the Board that you will be appointed to
(as applicable). In addition, you will be expected to devote appropriate preparation time ahead of each meeting. By accepting this appointment, you have confirmed that you are
able to allocate sufficient time to meet the expectations of this position.

1. Consideration. For and in consideration of the services to be performed by you, the Company agrees to compensate you as follows:

1.1

1.2

1.3

The  Company  agrees  to  reimburse  you  for  out-of-pocket  expenses  incurred  by  you  in  connection  with  your  service,  including  out-of-pocket  expenses,
transportation, and airfare on the Company's business, provided that such expenses are against original and valid receipts (the "Expenses").

Payment of the Expenses, as applicable, shall be made against your itemized invoice following the receipt of the relevant invoice, which invoice shall be
submitted to the Company within seven (7) days of the end of each calendar month during the term of this Agreement.

For the avoidance of any doubt, the aforementioned Expenses constitute the full and final consideration for your appointment, and you shall not be entitled
to any additional consideration, of any form, for your appointment and service. You hereby acknowledge and agree that pursuant to the Company's director
compensation policy, you are entitled to receive certain other compensation for your service as a member of the Board, including cash retainers and stock
options to purchase shares of the Company's common stock, and that you hereby waive such rights to compensation that would otherwise be due to you.

1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2. The term of your appointment as a non-employee, independent director of the Company shall be for one year or until the next Annual Meeting of Shareholders and

shall be renewable on a yearly basis by vote of the shareholders or appointment by the Board.

3. You will undertake such travelling as may reasonably be necessary for the performance of your duties, including travelling for Board meetings and site visits if

required.

4. You will undertake such duties and powers relating to the Company and any subsidiaries or associated companies (the "Group") as the Board may from time to time
reasonably request. The Board as a whole is collectively responsible for promoting the success of the Company by directing and supervising the Company's affairs,
inter alia, as follows:

4.1

4.2

4.3

Providing entrepreneurial leadership of the Group within a framework of prudent and effective controls which enable risk to be assessed and managed; and

Setting  the  Group's  strategic  aims,  ensuring  that  the  necessary  financial  and  human  resources  are  in  place  for  the  Group  to  meet  its  objectives  and
reviewing management performance; and

Setting the Group's values and standards and ensuring that its obligations to its shareholders and others are understood and met, including, but not limited
to:

A.

B.

Managing conflicts of interest that may arise in Board meetings; and

Ensuring that all Board members are acting in the best interests of all shareholders.

5. Confidential Information.

5.1

You undertake to the Company that you shall maintain in strict confidentiality all trade, business, technical or other information regarding the Company,
the Group, its affiliated entities and their business affairs including, without limitation, all marketing, sales, technical and business know-how, intellectual
property, trade secrets, identity and requirements of customers and prospective customers, the Company's methods of doing business and any and all other
information  relating  to  the  operation  of  the  Company  (collectively,  the  "Confidential  Information").  You  shall  at  no  time  disclose  any  Confidential
Information to any person, firm, or entity, for any purpose unless such disclosure is required in order to fulfill your responsibilities as director. You further
undertake that you shall not use such Confidential Information for personal gain.

"Confidential Information" shall not include information that (i) is or becomes part of the public domain other than as a result of disclosure by you, (ii)
becomes available to you on a non-confidential basis from a source other than the Company, provided that the source is not bound with respect to that
information  by  a  confidentiality  agreement  with  the  Group  or  is  otherwise  prohibited  from  transmitting  that  information  by  a  contractual  legal  or  other
obligation, or (iii) can be proven by you to have been in your possession prior to disclosure of the information by the Company.

In  the  event  that  you  are  requested  or  required  (by  oral  questions,  interrogatories,  requests  for  information  or  documents,  subpoena,  civil  investigative
demand or other process) to disclose any Confidential Information, it is agreed that you, to the extent practicable under the circumstances, will provide the
Company with prompt notice of any such request or requirement so that the Company may seek an appropriate protective order or waive compliance with
this  Section  5.  If  a  protective  order  or  the  receipt  of  a  waiver  hereunder  has  not  been  obtained,  you  may  disclose  only  that  portion  of  the  Confidential
Information which you are legally compelled to disclose.

2

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6. Blackout Period. You understand that we have, or intend to have, a policy pursuant to which, among other restrictions, no officer, director or key executive (or any
of  their  affiliates) may engage in transactions in our stock during the periods commencing at the close of business on the 15th day before the end of each fiscal
quarter and ending after markets close on the second full trading day after the financial information for the then-current quarter has been publicly released, subject
to the terms and conditions of the Company's policy.

7. Term and Termination.

7.1

Subject to Section 7.2 hereunder, this Agreement and appointment shall terminate immediately and without claim for compensation on the occurrence of
any of the following events:

A.

B.

C.

D.

E.

If you resign as a Director of the Company for any reason; and/or

If you are removed or not re-appointed as a Director of the Board at an Annual Meeting of Shareholders of the Company in accordance with the
requirements of the Business Corporation Law of the State of Nevada and/or any other applicable law or regulation and/or the Company's Articles
of Incorporation; and/or

If you have been declared bankrupt or made an arrangement or composition with or for the benefit of your creditors; and/or

If you have been disqualified from acting as a Director (including, but not limited to, an event in which you are declared insane or become of
unsound mind or become physically incapable of performing your functions as Director for a period of at least sixty (60) days); and/or

If an order of a court having jurisdiction over the Company requires you to resign.

7.2

Any  termination  of  this Agreement  shall  be  without  payment  of  damages  or  compensation  (except  that  you  shall  be  entitled  to  any  accrued  Expenses
properly incurred under the terms of this Agreement prior to the date of such termination).

8. The Company will put directors' and officers' liability insurance in place within sixty (60) days of this Agreement, if not already in place, and will use commercial

reasonable efforts to maintain such insurance coverage for the full term of your appointment.

9. On termination of this appointment, you shall return all property belonging to the Group, together with all documents, papers, disks and information, howsoever

stored, relating to the Group and used by you in connection with your position with the Company.

3

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
10. Subject to the proper performance of your obligations to the Company under this Agreement and any applicable law, the Company agrees that you will be free to

accept other appointments, directorships and chairmanships provided that:

10.1

They do not in any way conflict with the interests of the Company or any member of the Group; and

10.2

They do not restrict you from devoting the necessary time and attention properly to services to be performed under this Agreement; and

10.3

In the event that you become aware of any potential conflicts of interest, these must be disclosed to the Chairman and/or the Chief Executive Officer (the
"CEO") of the Company as soon as they become apparent.

11. The performance of individual Directors, the Chairman and the Board and its committees is evaluated annually. If, in the interim, there are any matters which cause

you concern about your position, you should discuss them with the Chairman and/or the CEO as soon as is appropriate.

12. In addition to any right pursuant to applicable law, occasions may arise when you consider that you need professional advice in the furtherance of your duties as a
director.  Circumstances  may  occur  when  it  will  be  appropriate  for  you  to  seek  such  advice  from  independent  advisors  at  the  Company's  expense,  to  the  extent
provided under applicable law and subject to the prior written approval of the CEO and/or the Board.

13. This Agreement refers to your appointment as a Director of the Company and your future membership on the committees of the Board.

14. You shall ensure that you comply at all times with the Company's inside trading policies as in effect from time to time.

15. You shall discharge your general duties as a Director pursuant to the Company's Articles of Incorporation, Bylaws and applicable law.

16. This Agreement shall be governed by and construed in accordance with the law of the State of Massachusetts.

Please sign the attached copy of this Agreement and return it to the Company to signify your acceptance of the terms set out above.

**

4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Sincerely yours,

XENETIC BIOSCIENCES INC.

/s/ Jeffrey Eisenberg                    
Name: Jeffrey Eisenberg
Title Chief Executive Officer

AGREED AND ACKNOWLEDGED BY:

/s/ Grigory G. Borisenko                    
Name of Director: Grigory G. Borisenko

5

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 10.51

[DATE]
[NAME]
[ADDRESS]

Re: Board of Directors Appointment

Dear [_____________]:

Xenetic Biosciences, Inc.
40 Speen Street,
Suite 102
Framingham, MA 01701
t 781-778-7720
e info@xeneticbio.com

This Letter Agreement (the “Agreement”) is to confirm the terms of your proposed appointment on [___________] as a non-employee, [independent] Director of the Board of
Directors (the “Board”) of Xenetic Biosciences, Inc. (the “Company”).

Overall, in terms of time commitment, we expect your attendance at all the meetings of the Board and meetings of such committees of the Board that you will be appointed to
(as applicable). In addition, you will be expected to devote appropriate preparation time ahead of each meeting. By accepting this appointment, you have confirmed that you are
able to allocate sufficient time to meet the expectations of this position.

1.     Consideration. For and in consideration of the services to be performed by you, the Company agrees to compensate you as follows:

1.1

1.2

Director Fee. A  director  fee  equal  to  $[_______]  per  annum,  payable  quarterly  (the  “Board  Meeting  Fee”)  will  be  the  cash  compensation  for  your  role  as  a
director, as well as any Board committees, as chair or as a member, you may participate.

Stock Option. Subject to all approvals required by law, the Company will grant you, pursuant to an equity incentive plan or such other plan to be adopted by the
Company from time to time (the “Plan”) and upon such terms and conditions as determined by the Compensation Committee or the Board (as applicable), an
option to purchase [________] shares of common stock of the Company at a strike price determined by the closing price of the common stock on the date of
such grant (the “Initial Option”). This option shall be exercisable as provided herein and shall vest [quarterly over twelve months] so long as you are a member
of our Board. An additional option to purchase [____] shares of Company common stock shall be granted for service each year at the date of the Company’s
Annual Meeting of Shareholders commencing with the [____] Annual Meeting of Shareholders (together with the Initial Option, the “Options”). The exercise
price shall be determined by the closing price of the common stock on the date of such grant.

If your service on the Board is terminated or ends for any reason, all granted Options that have not vested shall be forfeited, and any Options that have vested,
but have not been exercised, may be exercisable by you any time within three (3) months following the termination of your Board position (the “Termination
Exercise Period”). Any Options that are not exercised within the Termination Exercise Period shall expire immediately.

A.              

Term of Options. All  Options,  if  and  to  the  extent  vested  according  to  Section  1.2  above,  shall  be  in  effect  for  a  period  of  10  years
commencing  immediately  after  the  granting  of  all  Options  granted  to  you  under  this Agreement,  and  shall  expire  immediately  thereafter,  unless  terminated
sooner as provided in Section 1.2. Without derogating from the aforesaid, if the Plan that shall be approved by the Company shall include additional provisions
related to expiration of Options, such provisions shall also apply with respect to all Options granted to you under this Agreement.

B.              Vesting. All Options granted to you shall vest as provided in Section 1.2.

C.              Price. The exercise price of the Options shall be equal to the Company’s closing stock price on the date of your grant.

D.               General. All  Options  granted  to  you  shall  be  in  effect  subject  to  your  continuous  service  as  a  Director  and  subject  to  the  terms  and
conditions of the Company’s Plan, including such terms related to vesting and expiration, and subject to such terms and conditions as will be approved by the
Company, at its sole discretion. In case of contradiction between the provisions of this Agreement and the provisions of the Plan, the provisions of the Plan
shall supersede.

1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
E.               Certain Representations. You represent and agree that you are accepting the option to purchase shares of the Company’s common stock
being  issued  to  you  pursuant  to  this Agreement  for  your  own  account  and  not  with  a  view  to  or  for  sale  of  distribution  thereof.  You  understand  that  the
securities  are  restricted  securities  and  you  understand  the  meaning  of  the  term  “restricted  securities.”  You  further  represent  that  you  were  not  solicited  by
publication of any advertisement in connection with the receipt of the shares and that you have consulted tax counsel as needed regarding the shares.

The  Company  agrees  to  reimburse  you  for  out-of-pocket  expenses  incurred  by  you  in  connection  with  your  service,  including  out-of-pocket  expenses,
transportation, and airfare on the Company’s business, provided that such expenses are against original and valid receipts (the “Expenses”).

Payment  of  the  Expenses,  as  applicable,  shall  be  made  against  your  itemized  invoice  following  the  receipt  of  the  relevant  invoice,  which  invoice  shall  be
submitted to the Company within seven (7) days of the end of each calendar month during the term of this Agreement.

For the avoidance of any doubt, the Board Meeting Fee and the Options (subject to their terms) and the aforementioned Expenses constitute the full and final
consideration for your appointment, and you shall not be entitled to any additional consideration, of any form, for your appointment and service.

1.3

1.4

1.5

2. The term of your appointment as a non-employee, [independent] director of the Company shall be for one year or until the next Annual Meeting of Shareholders and

shall be renewable on a yearly basis by vote of the shareholders or appointment by the Board.

3. You will undertake such travelling as may reasonably be necessary for the performance of your duties, including travelling for Board meetings and site visits if required.

4. You will undertake such duties and powers relating to the Company and any subsidiaries or associated companies (the “Group”) as the Board may from time to time
reasonably request. The Board as a whole is collectively responsible for promoting the success of the Company by directing and supervising the Company’s affairs, inter
alia, as follows:

4.1

4.2

Providing entrepreneurial leadership of the Group within a framework of prudent and effective controls which enable risk to be assessed and managed; and

Setting the Group’s strategic aims, ensuring that the necessary financial and human resources are in place for the Group to meet its objectives and reviewing
management performance; and

4.3

Setting the Group’s values and standards and ensuring that its obligations to its shareholders and others are understood and met, including, but not limited to:

A.              Managing conflicts of interest that may arise in Board meetings; and

B.              Ensuring that all Board members are acting in the best interests of all shareholders.

5. Confidential Information.

5.1

You undertake to the Company that you shall maintain in strict confidentiality all trade, business, technical or other information regarding the Company, the
Group, its affiliated entities and their business affairs including, without limitation, all marketing, sales, technical and business know-how, intellectual property,
trade secrets, identity and requirements of customers and prospective customers, the Company’s methods of doing business and any and all other information
relating  to  the  operation  of  the  Company  (collectively,  the  “Confidential  Information”).  You  shall  at  no  time  disclose  any  Confidential  Information  to  any
person, firm, or entity, for any purpose unless such disclosure is required in order to fulfill your responsibilities as director. You further undertake that you shall
not use such Confidential Information for personal gain.

2

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
“Confidential  Information”  shall  not  include  information  that  (i)  is  or  becomes  part  of  the  public  domain  other  than  as  a  result  of  disclosure  by  you,  (ii)
becomes  available  to  you  on  a  non-confidential  basis  from  a  source  other  than  the  Company,  provided  that  the  source  is  not  bound  with  respect  to  that
information  by  a  confidentiality  agreement  with  the  Group  or  is  otherwise  prohibited  from  transmitting  that  information  by  a  contractual  legal  or  other
obligation, or (iii) can be proven by you to have been in your possession prior to disclosure of the information by the Company.

In the event that you are requested or required (by oral questions, interrogatories, requests for information or documents, subpoena, civil investigative demand
or other process) to disclose any Confidential Information, it is agreed that you, to the extent practicable under the circumstances, will provide the Company
with prompt notice of any such request or requirement so that the Company may seek an appropriate protective order or waive compliance with this Section 5.
If a protective order or the receipt of a waiver hereunder has not been obtained, you may disclose only that portion of the Confidential Information which you
are legally compelled to disclose.

6. Blackout Period. You understand that we have, or intend to have, a policy pursuant to which, among other restrictions, no officer, director or key executive (or any of
their affilaites) may engage in transactions in our stock during the periods commencing at the close of business on the 15th day before the end of each fiscal quarter and
ending after markets close on the second full trading day after the financial information for the then-current quarter has been publicly released, subject to the terms and
conditions of the Company’s policy.

7. Term and Termination.

7.1

Subject to Section 7.2 hereunder, this Agreement and appointment shall terminate immediately and without claim for compensation on the occurrence of any of
the following events:

A.              If you resign as a Director of the Company for any reason; and/or

B.               If you are removed or not re-appointed as a Director of the Board at an Annual Meeting of Shareholders of the Company in accordance
with the requirements of the Business Corporation Law of the State of Nevada and/or any other applicable law or regulation and/or the Company’s Articles of
Incorporation; and/or

C.              If you have been declared bankrupt or made an arrangement or composition with or for the benefit of your creditors; and/or

D.               If you have been disqualified from acting as a Director (including, but not limited to, an event in which you are declared insane or become

of unsound mind or become physically incapable of performing your functions as Director for a period of at least sixty (60) days); and/or

E.               If an order of a court having jurisdiction over the Company requires you to resign.

6.2

Any termination of this Agreement shall be without payment of damages or compensation (except that you shall be entitled to any accrued Board Meeting Fees
or Expenses properly incurred under the terms of this Agreement prior to the date of such termination).

7.

8.

9.

The  Company  will  put  directors’  and  officers’  liability  insurance  in  place  within  sixty  (60)  days  of  this Agreement,  if  not  already  in  place,  and  will  use  commercial
reasonable efforts to maintain such insurance coverage for the full term of your appointment.

On termination of this appointment, you shall return all property belonging to the Group, together with all documents, papers, disks and information, howsoever stored,
relating to the Group and used by you in connection with your position with the Company.

Subject to the proper performance of your obligations to the Company under this Agreement and any applicable law, the Company agrees that you will be free to accept
other appointments, directorships and chairmanships provided that:

3

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
9.1

9.2

9.3

They do not in any way conflict with the interests of the Company or any member of the Group; and

They do not restrict you from devoting the necessary time and attention properly to services to be performed under this Agreement; and

In  the  event  that  you  become  aware  of  any  potential  conflicts  of  interest,  these  must  be  disclosed  to  the  Chairman  and/or  the  Chief  Executive  Officer  (the
“CEO”) of the Company as soon as they become apparent.

10.

11.

The performance of individual Directors, the Chairman and the Board and its committees is evaluated annually. If, in the interim, there are any matters which cause you
concern about your position, you should discuss them with the Chairman and/or the CEO as soon as is appropriate.

In addition to any right pursuant to applicable law, occasions may arise when you consider that you need professional advice in the furtherance of your duties as a director.
Circumstances  may  occur  when  it  will  be  appropriate  for  you  to  seek  such  advice  from  independent  advisors  at  the  Company’s  expense,  to  the  extent  provided  under
applicable law and subject to the prior written approval of the CEO and/or the Board.

12.

This Agreement refers to your appointment as a Director of the Company and your future membership on the committees of the Board.

13. You shall ensure that you comply at all times with the Company’s inside trading policies as in effect from time to time.

14. You shall discharge your general duties as a Director pursuant to the Company’s Articles of Incorporation, Bylaws and applicable law.

15.

This Agreement shall be governed by and construed in accordance with the law of the State of Massachusetts.

Please sign the attached copy of this Agreement and return it to the Company to signify your acceptance of the terms set out above.

***

4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Sincerely yours,

XENETIC BIOSCIENCES INC.

___________________________
Name: Jeffrey Eisenberg
Title: Chief Executive Officer

AGREED AND ACKNOWLEDGED BY:

Name of Director:

5

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 10.52

XENETIC BIOSCIENCES, INC.

Stock Option Grant Notice
Stock Option Grant under the
Amended and Restated Xenetic Biosciences, Inc.
Equity Incentive Plan, adopted by the Board of Directors on September 26, 2019 and approved by stockholders on December 4, 2019

Option No.

1.         Name and Address of Participant:

2.         Date of Option Grant:

3.         Type of Grant:
4.         Maximum Number of Shares for which this Option is exercisable:

5.         Exercise (purchase) price per share:

6.         Option Expiration Date:
7.         Vesting Start Date:
8.         Vesting Schedule: This Option shall become exercisable (and the Shares issued upon exercise shall be vested) as follows provided the Participant is an Eligible Employee,

director or Consultant of the Company or of an Affiliate on the applicable vesting date:

1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The  foregoing  rights  are  cumulative  and  are  subject  to  the  other  terms  and  conditions  of  the Agreement  and  the Amended  and  Restated  Xenetic  Biosciences,  Inc.
Equity  Incentive  Plan  adopted  by  the  Board  of  Directors  on  September  26,  2019  and  approved  by  stockholders  on  December  4,  2019,  as  amended  from  time  to  time  (the
“Plan”).

Notwithstanding  the  foregoing  or  any  terms  in  the Agreement  or  the  Plan  to  the  contrary,  in  the  event  of  a  Change  in  Control  (as  defined  in  the  Plan)  all  of  the
Shares which would have vested in each vesting installment(s) remaining under this Option will be vested and exercisable upon the Change in Control.

Notwithstanding the foregoing, unless otherwise approved by the Administrator in its sole discretion, the Option shall only be exercised from and after the date the
Company has filed a Form S-8 registration statement with the U.S. Securities and Exchange Commission covering the Shares authorized under the Plan.

The  Company  and  the  Participant  acknowledge  receipt  of  this  Stock  Option  Grant  Notice  and  agree  to  the  terms  of  the  Stock  Option Agreement  Incorporated  Terms  and
Conditions (attached hereto and incorporated by reference herein (the “Agreement”)), the Plan and the terms of this Option Grant as set forth above.

XENETIC BIOSCIENCES, INC.

By:______________________________
      Name:
      Title:

_________________________________
Participant

2

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
XENETIC BIOSCIENCES, INC.

STOCK OPTION AGREEMENT - INCORPORATED TERMS AND CONDITIONS

AGREEMENT  made  as  of  the  date  of  grant  set  forth  in  the  Stock  Option  Grant  Notice  by  and  between  Xenetic  Biosciences,  Inc.  (the  “Company”),  a  Nevada

corporation, and the individual whose name appears on the Stock Option Grant Notice (the “Participant”).

WHEREAS, the Company desires to grant to the Participant an Option to purchase shares of its common stock, $0.001 par value per share (the “Shares”), under and
for the purposes set forth in the Amended and Restated Xenetic BioSciences, Inc. Equity Incentive Plan, adopted by the Board of Directors on September 26, 2019 and adopted
by stockholders on December 4, 2019, as amended from time to time (the “Plan”), and any rules and regulations promulgated by the Committee with respect to the Plan;

WHEREAS, the Company and the Participant understand and agree that any terms used and not defined herein have the same meanings as in the Plan; and

WHEREAS, the Company and the Participant each intend that the Option granted herein shall be of the type set forth in the Stock Option Grant Notice.

NOW, THEREFORE, in consideration of the mutual covenants hereinafter set forth and for other good and valuable consideration, the parties hereto agree as follows:

1.             GRANT OF OPTION.

The Company hereby grants to the Participant the right and option to purchase all or any part of an aggregate of the number of Shares set forth in the Stock
Option Grant Notice, on the terms and conditions and subject to all the limitations set forth therein and herein (collectively, the “Agreement”), under United States securities and
tax laws, and in the Plan, which is incorporated herein by reference. The Participant acknowledges receipt of a copy of the Plan.

2.             EXERCISE PRICE.

The exercise price of the Shares covered by the Option shall be the amount per Share set forth in the Stock Option Grant Notice, subject to adjustment, as
provided in the Plan, in the event of a stock split, reverse stock split or other events affecting the holders of Shares after the date hereof (the “Exercise Price”). Payment shall be
made in accordance with Section 5(c) of the Plan.

3.             EXERCISABILITY OF OPTION.

Stock Option Grant Notice and is subject to the other terms and conditions of this Agreement and the Plan.

Subject to the terms and conditions set forth in this Agreement and the Plan, the Option granted hereby shall become vested and exercisable as set forth in the

4.             TERM OF OPTION.

This Option shall terminate on the Option Expiration Date as specified in the Stock Option Grant Notice and, if this Option is designated in the Stock Option
Grant Notice as an Incentive Stock Option (an “ISO”) and the Participant is a 10% Stockholder, such date may not be more than five years from the date of this Agreement, but
shall be subject to earlier termination as provided herein or in the Plan.

3

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
If the Participant ceases to be an Employee, director or Consultant of the Company or of an Affiliate for any reason other than the death or Disability of the
Participant, or termination of the Participant for Cause (the “Termination Date”), the Option to the extent then vested and exercisable pursuant to Section 3 hereof as of the
Termination Date, and not previously terminated in accordance with this Agreement, may be exercised within three months after the Termination Date, or on or prior to the
Option Expiration Date as specified in the Stock Option Grant Notice, whichever is earlier, but may not be exercised thereafter except as set forth below. In such event, the
unvested portion of the Option shall not be exercisable and shall expire and be cancelled on the Termination Date.

If this Option is designated in the Stock Option Grant Notice as an ISO and the Participant ceases to be an Employee of the Company or of an Affiliate but
continues after termination of employment to provide service to the Company or an Affiliate as a director or Consultant, this Option shall continue to vest in accordance with
Section 3 above as if this Option had not terminated until the Participant is no longer providing services to the Company. In such case, this Option shall automatically convert
and be deemed a Nonstatutory Stock Option as of the date that is three months from termination of the Participant’s employment and this Option shall continue on the same
terms and conditions set forth herein until such Participant is no longer providing service to the Company or an Affiliate.

Notwithstanding the foregoing, in the event of the Participant’s Disability or death within three months after the Termination Date, the Participant (or, in the
case of death, the legal representative of the Participant’s estate) may exercise the Option within one year after the Termination Date, but in no event after the Option Expiration
Date as specified in the Stock Option Grant Notice.

In the event the Participant’s service is terminated by the Company or an Affiliate for Cause, the Participant’s right to exercise any unexercised portion of this
Option even if vested shall cease immediately as of the time the Participant is notified his or her service is terminated for Cause, and this Option shall thereupon terminate.
Notwithstanding anything herein to the contrary, if subsequent to the Participant’s termination, but prior to the exercise of the Option, the Committee determines that, either
prior or subsequent to the Participant’s termination, the Participant engaged in conduct which would constitute Cause, then the Participant shall immediately cease to have any
right to exercise the Option and this Option shall thereupon terminate.

In  the  event  of  the  Disability  of  the  Participant,  as  determined  in  accordance  with  the  Plan,  the  Option  shall  be  exercisable  within  one  year  after  the
Participant’s termination of service due to Disability or, if earlier, on or prior to the Option Expiration Date as specified in the Stock Option Grant Notice. In such event, the
Option shall be exercisable:

(a)

(b)

to  the  extent  that  the  Option  has  become  exercisable  but  has  not  been  exercised  as  of  the  date  of  the  Participant’s  termination  of  service  due  to
Disability; and

in the event rights to exercise the Option accrue periodically, to the extent of a pro rata portion through the date of the Participant’s termination of
service due to Disability of any additional vesting rights that would have accrued on the next vesting date had the Participant not become Disabled.
The proration shall be based upon the number of days accrued in the current vesting period prior to the date of the Participant’s termination of service
due to Disability provided that in no event shall any portion of the Option vest within one year of the date of grant.

In the event of the death of the Participant while an Employee, director or Consultant of the Company or of an Affiliate, the Option shall be exercisable by
the legal representative of the Participant’s estate within one year after the date of death of the Participant or, if earlier, on or prior to the Option Expiration Date as specified in
the Stock Option Grant Notice. In such event, the Option shall be exercisable:

4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
(x)

(y)

to the extent that the Option has become exercisable but has not been exercised as of the date of death; and

in the event rights to exercise the Option accrue periodically, to the extent of a pro rata portion through the date of death of any additional vesting,
rights that would have accrued on the next vesting date had the Participant not died. The proration shall be based upon the number of days accrued in
the current vesting period prior to the Participant’s date of death provided that in no event shall any portion of the Option vest within one year of the
date of grant.

5.             METHOD OF EXERCISING OPTION.

Subject to the terms and conditions of this Agreement, the Option may be exercised by written notice to the Company or its designee, in substantially the form
of Exhibit A attached hereto (or in such other form acceptable to the Company, which may include electronic notice). Such notice shall state the number of Shares with respect
to which the Option is being exercised and shall be signed by the person exercising the Option (which signature may be provided electronically in a form acceptable to the
Company).  Payment  of  the  Exercise  Price  for  such  Shares  shall  be  made  in  accordance  with  Section  5(c)  of  the  Plan.  The  Company  shall  deliver  such  Shares  as  soon  as
practicable  after  the  notice  shall  be  received,  provided,  however,  that  the  Company  may  delay  issuance  of  such  Shares  until  completion  of  any  action  or  obtaining  of  any
consent, which the Company deems necessary under any applicable law. The Shares as to which the Option shall have been so exercised shall be issued to the Participant in the
form of a book-entry account, for the benefit of the Participant or his or her designee, maintained by the Company’s stock transfer agent or its designee. In the event the Option
shall be exercised, pursuant to Section 4 hereof, by any person other than the Participant, such notice shall be accompanied by appropriate proof of the right of such person to
exercise the Option. All Shares that shall be purchased upon the exercise of the Option as provided herein shall be fully paid and nonassessable.

6.             PARTIAL EXERCISE.

Exercise of this Option to the extent above stated may be made in part at any time and from time to time within the above limits, except that no fractional

share shall be issued pursuant to this Option.

7.             NON-ASSIGNABILITY.

The Option shall not be transferable by the Participant otherwise than by will or by the laws of descent and distribution. If this Option is a Nonstatutory Stock
Option then it may also be transferred pursuant to a qualified domestic relations order as defined by the Code or Title I of the Employee Retirement Income Security Act or the
rules thereunder. Except as provided above in this paragraph, the Option shall be exercisable, during the Participant’s lifetime, only by the Participant (or, in the event of legal
incapacity or incompetency, by the Participant’s guardian or representative) and shall not be assigned, pledged or hypothecated in any way (whether by operation of law or
otherwise) and shall not be subject to execution, attachment or similar process. Any attempted transfer, assignment, pledge, hypothecation or other disposition of the Option or
of any rights granted hereunder contrary to the provisions of this Section 7, or the levy of any attachment or similar process upon the Option shall be null and void.

8.             NO RIGHTS AS STOCKHOLDER UNTIL EXERCISE.

The Participant shall have no rights as a stockholder with respect to Shares subject to this Agreement until entry of the Shares in the Company’s book-entry
account, in the name of the Participant or his or her designee, maintained by the Company’s stock transfer agent or its designee. Except as is expressly provided in the Plan with
respect to certain changes in the capitalization of the Company, no adjustment shall be made for dividends or similar rights for which the record date is prior to the date of such
registration.

5

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
9.             ADJUSTMENTS.

The  Plan  contains  provisions  covering  the  treatment  of  Options  in  a  number  of  contingencies  such  as  stock  splits  and  mergers.  Provisions  in  the  Plan  for
adjustment with respect to stock subject to Options and the related provisions with respect to successors to the business of the Company are hereby made applicable hereunder
and are incorporated herein by reference.

10.           TAXES.

The  Participant  acknowledges  and  agrees  that  (i)  any  income  or  other  taxes  due  from  the  Participant  with  respect  to  this  Option  or  the  Shares  issuable
pursuant to this Option shall be the Participant’s responsibility; (ii) the Participant was free to use professional advisors of his or her choice in connection with this Agreement,
has received advice from his or her professional advisors in connection with this Agreement, understands its meaning and import, and is entering into this Agreement freely and
without coercion or duress; (iii) the Participant has not received and is not relying upon any advice, representations or assurances made by or on behalf of the Company or any
Affiliate  or  any  employee  of  or  counsel  to  the  Company  or  any  Affiliate  regarding  any  tax  or  other  effects  or  implications  of  the  Option,  the  Shares  or  other  matters
contemplated by this Agreement; and (iv) neither the Committee, the Company, its Affiliates, nor any of its officers or directors, shall be held liable for any applicable costs,
taxes, or penalties associated with the Option if, in fact, the Internal Revenue Service were to determine that the Option constitutes deferred compensation under Section 409A
of the Code.

If this Option is designated in the Stock Option Grant Notice as a Nonstatutory Stock Option or if the Option is an ISO and is converted into a Nonstatutory
Stock Option and such Nonstatutory Stock Option is exercised, the Participant agrees that the Company may withhold from the Participant’s remuneration, if any, the minimum
statutory  amount  of  federal,  state  and  local  withholding  taxes  attributable  to  such  amount  that  is  considered  compensation  includable  in  such  person’s  gross  income. At  the
Company’s  discretion,  and  to  the  extent  permitted  by  applicable  law,  the  Participant  agrees  that  the  amount  required  to  be  withheld  may  be  withheld  in  cash  from  such
remuneration,  or  in  kind  from  the  Shares  otherwise  deliverable  to  the  Participant  on  exercise  of  the  Option.  The  Participant  further  agrees  that,  if  the  Company  does  not
withhold an amount from the Participant’s remuneration sufficient to satisfy the Company’s income tax withholding obligation, the Participant will reimburse the Company on
demand,  in  cash,  for  the  amount  under-withheld  and  if  reimbursement  is  not  permissible  under  applicable  law,  the  Participant  will  deliver  sufficient  funds  to  satisfy  any
withholding obligation in advance of, or simultaneous with, the exercise of the Option and the Company is not required to recognize the exercise of any such Option to the
extent the withholding obligations have not been so satisfied.

11.           PURCHASE FOR INVESTMENT.

Unless the offering and sale of the Shares to be issued upon the particular exercise of the Option shall have been effectively registered under the Securities
Act,  the  Company  shall  be  under  no  obligation  to  issue  the  Shares  covered  by  such  exercise  unless  the  Company  has  determined  that  such  exercise  and  issuance  would  be
exempt from the registration requirements of the Securities Act and until the following conditions have been fulfilled:

(a)

The person(s) who exercise the Option shall warrant to the Company, at the time of such exercise, that such person(s) are acquiring such Shares for
their own respective accounts, for investment, and not with a view to, or for sale in connection with, the distribution of any such Shares, in which
event the person(s) acquiring such Shares shall be bound by the provisions of the following legend which shall be endorsed upon any certificate(s)
evidencing the Shares issued pursuant to such exercise:

“The shares represented by this certificate have been taken for investment and they may not be sold or otherwise transferred by any person, including
a pledgee, unless (1) either (a) a Registration Statement with respect to such shares shall be effective under the Securities Act of 1933, as amended, or
(b) the Company shall have received an opinion of counsel satisfactory to it that an exemption from registration under such Act is then available, and
(2) there shall have been compliance with all applicable state securities laws;” and

6

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(b)

If the Company so requires, the Company shall have received an opinion of its counsel that the Shares may be issued upon such particular exercise in
compliance with the Securities Act without registration thereunder. Without limiting the generality of the foregoing, the Company may delay issuance
of the Shares until completion of any action or obtaining of any consent, which the Company deems necessary under any applicable law (including
without limitation state securities or “blue sky” laws).

12.           NO OBLIGATION TO MAINTAIN RELATIONSHIP.

The  Participant  acknowledges  that:  (i)  the  Company  is  not  by  the  Plan  or  this  Option  obligated  to  continue  the  Participant  as  an  employee,  director  or
Consultant of the Company or an Affiliate; (ii) the Plan is discretionary in nature and may be suspended or terminated by the Company at any time; (iii) the grant of the Option
is a one-time benefit which does not create any contractual or other right to receive future grants of options, or benefits in lieu of options; (iv) all determinations with respect to
any such future grants, including, but not limited to, the times when options shall be granted, the number of shares subject to each option, the option price, and the time or times
when each option shall be exercisable, will be at the sole discretion of the Company; (v) the Participant’s participation in the Plan is voluntary; (vi) the value of the Option is an
extraordinary  item  of  compensation  which  is  outside  the  scope  of  the  Participant’s  employment  or  consulting  contract,  if  any;  and  (vii)  the  Option  is  not  part  of  normal  or
expected  compensation  for  purposes  of  calculating  any  severance,  resignation,  redundancy,  end  of  service  payments,  bonuses,  long-service  awards,  pension  or  retirement
benefits or similar payments.

13.           IF OPTION IS INTENDED TO BE AN ISO.

If  this  Option  is  designated  in  the  Stock  Option  Grant  Notice  as  an  ISO  so  that  the  Participant  (or,  in  the  case  of  death,  the  legal  representative  of  the
Participant’s estate) may qualify for the favorable tax treatment provided to holders of Options that meet the standards of Section 422 of the Code then any provision of this
Agreement or the Plan which conflicts with the Code so that this Option would not be deemed an ISO is null and void and any ambiguities shall be resolved so that the Option
qualifies as an ISO. The Participant should consult with the Participant’s own tax advisors regarding the tax effects of the Option  and  the  requirements  necessary  to  obtain
favorable tax treatment under Section 422 of the Code, including, but not limited to, holding period requirements.

Notwithstanding  the  foregoing,  to  the  extent  that  the  Option  is  designated  in  the  Stock  Option  Grant  Notice  as  an  ISO  and  is  not  deemed  to  be  an  ISO
pursuant to Section 422(d) of the Code because the aggregate Fair Market Value (determined as of the Date of Option Grant) of any of the Shares with respect to which this ISO
is granted becomes exercisable for the first time during any calendar year in excess of $100,000, the portion of the Option representing such excess value shall be treated as a
Nonstatutory Stock Option and the Participant shall be deemed to have taxable income measured by the difference between the then Fair Market Value of the Shares received
upon exercise and the price paid for such Shares pursuant to this Agreement.

ISO is not an ISO or for any action taken by the Committee, including without limitation the conversion of an ISO to a Nonstatutory Stock Option.

Neither the Company nor any Affiliate shall have any liability to the Participant, or any other party, if the Option (or any part thereof) that is intended to be an

14.           NOTICE TO COMPANY OF DISQUALIFYING DISPOSITION OF AN ISO.

If this Option is designated in the Stock Option Grant Notice as an ISO then the Participant agrees to notify the Company in writing immediately after the
Participant makes a Disqualifying Disposition of any of the Shares acquired pursuant to the exercise of the ISO. A Disqualifying Disposition is defined in Section 424(c) of the
Code and includes any disposition (including any sale) of such Shares before the later of (a) two years after the date the Participant was granted the ISO or (b) one year after the
date the Participant acquired Shares by exercising the ISO, except as otherwise provided in Section 424(c) of the Code. If the Participant has died before the Shares are sold,
these holding period requirements do not apply and no Disqualifying Disposition can occur thereafter.

7

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
15.           NOTICES.

Any notices required or permitted by the terms of this Agreement or the Plan shall he given by recognized courier service, facsimile, registered or certified

mail, return receipt requested, addressed as follows:

If to the Company:

Xenetic Biosciences, Inc.
40 Speen Street, Ste 102
Framingham, MA 01701
Attention: CFO

If to the Participant, at the address set forth on the Stock Option Grant Notice.

or to such other address or addresses of which notice in the same manner has previously been given. Any such notice shall be deemed to have been given upon the earlier of
receipt, one business day following delivery to a recognized courier service or three business days following mailing by registered or certified mail.

16.           GOVERNING LAW.

This Agreement shall be governed by and construed in accordance with the laws of Delaware, without giving effect to the conflict of law principles thereof.
For the purpose of litigating any dispute that arises under this Agreement, the parties hereby consent to exclusive jurisdiction in Delaware and agree that such litigation shall be
conducted in the state courts of Delaware or the federal courts of the United States located in Delaware.

17.           BENEFIT OF AGREEMENT,

Subject to the provisions of the Plan and the other provisions hereof, this Agreement shall be for the benefit of and shall be binding upon the heirs, executors,

administrators, successors and assigns of the parties hereto.

18.           ENTIRE AGREEMENT.

This Agreement, together with the Plan, embodies the entire agreement and understanding between the parties hereto with respect to the subject matter hereof
and supersedes all prior oral or written agreements and understandings relating to the subject matter hereof. No statement, representation, warranty, covenant or agreement not
expressly set forth in this Agreement shall affect or be used to interpret, change or restrict, the express terms and provisions of this Agreement, provided however, in any event,
this Agreement shall be subject to and governed by the Plan.

19.           MODIFICATIONS AND AMENDMENTS.

The terms and provisions of this Agreement may be modified or amended as provided in the Plan.

8

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
20.           WAIVERS AND CONSENTS.

Except as provided in the Plan, the terms and provisions of this Agreement may be waived, or consent for the departure therefrom granted, only by written
document executed by the party entitled to the benefits of such terms or provisions. No such waiver or consent shall be deemed to be or shall constitute a waiver or consent with
respect  to  any  other  terms  or  provisions  of  this Agreement,  whether  or  not  similar.  Each  such  waiver  or  consent  shall  be  effective  only  in  the  specific  instance  and  for  the
purpose for which it was given, and shall not constitute a continuing waiver or consent.

21.           DATA PRIVACY.

By entering into this Agreement, the Participant: (i) authorizes the Company and each Affiliate, and any agent of the Company or any Affiliate administering
the Plan or providing Plan recordkeeping services, to disclose to the Company or any of its Affiliates such information and data as the Company or any such Affiliate shall
request in order to facilitate the grant of options and the administration of the Plan; and (ii) authorizes the Company and each Affiliate to store and transmit such information in
electronic form for the purposes set forth in this Agreement.

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

9

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTICE OF EXERCISE OF STOCK OPTION

[Form for Shares registered in the United States]

Exhibit A

To: Xenetic Biosciences, Inc.

Ladies and Gentlemen:

I  hereby  exercise  my  Stock  Option  to  purchase  _______________  shares  (the  “Shares”)  of  the  common  stock,  $0.001  par  value,  of  Xenetic  Biosciences,  Inc.  (the

“Company”), at the exercise price of $_______________ per share, pursuant to and subject to the terms of that Stock Option Grant Notice dated _______________, 20___.

I understand the nature of the investment I am making and the financial risks thereof. I am aware that it is my responsibility to have consulted with competent tax and
legal advisors about the relevant national, state and local income tax and securities laws affecting the exercise of the Option and the purchase and subsequent sale of the Shares.

I am paying the option exercise price for the Shares as follows:

_______________________________________

Please issue the Shares (cheek one):

[_] to me; or

[_] to me and _______________________, as joint tenants with right of

survivorship,

at the following address:
________________________________________
________________________________________
________________________________________

My mailing address for stockholder communications, if different from the address listed above, is:

________________________________________
________________________________________
________________________________________

Very truly yours,

___________________________________
     Participant

___________________________________
     Print Name

___________________________________
     Date

10

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 10.53

XENETIC BIOSCIENCES, INC.

Stock Option Grant Notice
Stock Option Grant under the
Amended and Restated Xenetic Biosciences, Inc.
Equity Incentive Plan, adopted by the Board of Directors on September 26, 2019 and approved by stockholders on December 4, 2019

Option No. 131

1.         Name and Address of Participant:

2.         Date of Option Grant:

3.         Type of Grant:
4.         Maximum Number of Shares for which this Option is exercisable:

5.         Exercise (purchase) price per share:

Jeffrey Eisenberg
c/o Xenetic Biosciences, Inc.
40 Speen Street,
Framingham, MA 01701

December 4, 2019

ISO to the extent qualified
230,000

$1.31

6.         Option Expiration Date:
7.         Vesting Start Date:
8.         Vesting Schedule: This Option shall become exercisable (and the Shares issued upon exercise shall be vested) as follows provided the Participant is an Eligible Employee,

December 4, 2029
December 4, 2019

director or Consultant of the Company or of an Affiliate on the applicable vesting date:

76,666 shares shall vest on the first anniversary of the Vesting Start Date
76,667 shares shall vest on the second anniversary of the Vesting Start Date
76,667 shares shall vest on the third anniversary of the Vesting Start Date

The  foregoing  rights  are  cumulative  and  are  subject  to  the  other  terms  and  conditions  of  the Agreement  and  the Amended  and  Restated  Xenetic  Biosciences,  Inc.
Equity  Incentive  Plan  adopted  by  the  Board  of  Directors  on  September  26,  2019  and  approved  by  stockholders  on  December  4,  2019,  as  amended  from  time  to  time  (the
“Plan”).  Notwithstanding  anything  to  the  contrary  in  the Agreement  or  the  Plan,  this  Option  may  be  exercised  at  any  time  during  the  twelve  month  period  following  the
termination of the Participant’s employment with the Company other than for “Cause” (as defined in the Employment Agreement between the Company and the Participant
entered into on October 26, 2017 (the “Employment Agreement”)), but in no event later than the Option Expiration Date. Any Option not exercised on the later of such dates
described in the preceding sentence shall be forfeited and canceled as of such later date.

1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Notwithstanding the foregoing or any terms in the Agreement or the Plan to the contrary, in the event of a Change in Control (as defined in the Plan), all of

the Shares which would have vested in each vesting installment(s) remaining under this Option will be vested and exercisable upon the Change in Control.

Notwithstanding the foregoing or any terms in the Agreement or the Plan to the contrary, in the event of a termination of the Participant’s employment with
the Company by the Company other than for “Cause” or by the Participant for “Good Reason” (in each case, as defined in the Employment Agreement), all of the
Shares which would have vested in each vesting installment(s) remaining under this Options will be vested immediately prior to such termination provided that in no
event shall any portion of the Option vest within one year of the date of grant unless such termination is within twelve months following a Change in Control.

Notwithstanding the foregoing, unless otherwise approved by the Administrator in its sole discretion, the Option shall only be exercised from and after the

date the Company has filed a Form S-8 registration statement with the U.S. Securities and Exchange Commission covering the Shares authorized under the Plan.

The Company and the Participant acknowledge receipt of this Stock Option Grant Notice and agree to the terms of the Stock Option Agreement Incorporated Terms

and Conditions (attached hereto and incorporated by reference herein (the “Agreement”)), the Plan and the terms of this Option Grant as set forth above.

XENETIC BIOSCIENCES, INC.

By: /s/ James Parslow .
       Name: James Parslow
       Title: Chief Financial Officer

/s/ Jeffrey Eisenberg .
Participant

2

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
XENETIC BIOSCIENCES, INC.

STOCK OPTION AGREEMENT - INCORPORATED TERMS AND CONDITIONS

AGREEMENT  made  as  of  the  date  of  grant  set  forth  in  the  Stock  Option  Grant  Notice  by  and  between  Xenetic  Biosciences,  Inc.  (the  “Company”),  a  Nevada

corporation, and the individual whose name appears on the Stock Option Grant Notice (the “Participant”).

WHEREAS, the Company desires to grant to the Participant an Option to purchase shares of its common stock, $0.001 par value per share (the “Shares”), under and
for the purposes set forth in the Amended and Restated Xenetic BioSciences, Inc. Equity Incentive Plan, adopted by the Board of Directors on September 26, 2019 and adopted
by stockholders on December 4, 2019, as amended from time to time (the “Plan”), and any rules and regulations promulgated by the Committee with respect to the Plan;

WHEREAS, the Company and the Participant understand and agree that any terms used and not defined herein have the same meanings as in the Plan; and

WHEREAS, the Company and the Participant each intend that the Option granted herein shall be of the type set forth in the Stock Option Grant Notice.

NOW, THEREFORE, in consideration of the mutual covenants hereinafter set forth and for other good and valuable consideration, the parties hereto agree as follows:

1.             GRANT OF OPTION.

The Company hereby grants to the Participant the right and option to purchase all or any part of an aggregate of the number of Shares set forth in the Stock
Option Grant Notice, on the terms and conditions and subject to all the limitations set forth therein and herein (collectively, the “Agreement”), under United States securities and
tax laws, and in the Plan, which is incorporated herein by reference. The Participant acknowledges receipt of a copy of the Plan.

2.             EXERCISE PRICE.

The exercise price of the Shares covered by the Option shall be the amount per Share set forth in the Stock Option Grant Notice, subject to adjustment, as
provided in the Plan, in the event of a stock split, reverse stock split or other events affecting the holders of Shares after the date hereof (the “Exercise Price”). Payment shall be
made in accordance with Section 5(c) of the Plan.

3.             EXERCISABILITY OF OPTION.

Stock Option Grant Notice and is subject to the other terms and conditions of this Agreement and the Plan.

Subject to the terms and conditions set forth in this Agreement and the Plan, the Option granted hereby shall become vested and exercisable as set forth in the

4.             TERM OF OPTION.

This Option shall terminate on the Option Expiration Date as specified in the Stock Option Grant Notice and, if this Option is designated in the Stock Option
Grant Notice as an Incentive Stock Option (an “ISO”) and the Participant is a 10% Stockholder, such date may not be more than five years from the date of this Agreement, but
shall be subject to earlier termination as provided herein or in the Plan.

3

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
If the Participant ceases to be an Employee, director or Consultant of the Company or of an Affiliate for any reason other than the death or Disability of the
Participant, or termination of the Participant for Cause (the “Termination Date”), the Option to the extent then vested and exercisable pursuant to Section 3 hereof as of the
Termination Date, and not previously terminated in accordance with this Agreement, may be exercised within three months after the Termination Date, or on or prior to the
Option Expiration Date as specified in the Stock Option Grant Notice, whichever is earlier, but may not be exercised thereafter except as set forth below. In such event, the
unvested portion of the Option shall not be exercisable and shall expire and be cancelled on the Termination Date.

If this Option is designated in the Stock Option Grant Notice as an ISO and the Participant ceases to be an Employee of the Company or of an Affiliate but
continues after termination of employment to provide service to the Company or an Affiliate as a director or Consultant, this Option shall continue to vest in accordance with
Section 3 above as if this Option had not terminated until the Participant is no longer providing services to the Company. In such case, this Option shall automatically convert
and be deemed a Nonstatutory Stock Option as of the date that is three months from termination of the Participant’s employment and this Option shall continue on the same
terms and conditions set forth herein until such Participant is no longer providing service to the Company or an Affiliate.

Notwithstanding the foregoing, in the event of the Participant’s Disability or death within three months after the Termination Date, the Participant (or, in the
case of death, the legal representative of the Participant’s estate) may exercise the Option within one year after the Termination Date, but in no event after the Option Expiration
Date as specified in the Stock Option Grant Notice.

In the event the Participant’s service is terminated by the Company or an Affiliate for Cause, the Participant’s right to exercise any unexercised portion of this
Option even if vested shall cease immediately as of the time the Participant is notified his or her service is terminated for Cause, and this Option shall thereupon terminate.
Notwithstanding anything herein to the contrary, if subsequent to the Participant’s termination, but prior to the exercise of the Option, the Committee determines that, either
prior or subsequent to the Participant’s termination, the Participant engaged in conduct which would constitute Cause, then the Participant shall immediately cease to have any
right to exercise the Option and this Option shall thereupon terminate.

In  the  event  of  the  Disability  of  the  Participant,  as  determined  in  accordance  with  the  Plan,  the  Option  shall  be  exercisable  within  one  year  after  the
Participant’s termination of service due to Disability or, if earlier, on or prior to the Option Expiration Date as specified in the Stock Option Grant Notice. In such event, the
Option shall be exercisable:

(a)

(b)

to  the  extent  that  the  Option  has  become  exercisable  but  has  not  been  exercised  as  of  the  date  of  the  Participant’s  termination  of  service  due  to
Disability; and

in the event rights to exercise the Option accrue periodically, to the extent of a pro rata portion through the date of the Participant’s termination of
service due to Disability of any additional vesting rights that would have accrued on the next vesting date had the Participant not become Disabled.
The proration shall be based upon the number of days accrued in the current vesting period prior to the date of the Participant’s termination of service
due to Disability provided that in no event shall any portion of the Option vest within one year of the date of grant.

In the event of the death of the Participant while an Employee, director or Consultant of the Company or of an Affiliate, the Option shall be exercisable by
the legal representative of the Participant’s estate within one year after the date of death of the Participant or, if earlier, on or prior to the Option Expiration Date as specified in
the Stock Option Grant Notice. In such event, the Option shall be exercisable:

4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
(x)

(y)

to the extent that the Option has become exercisable but has not been exercised as of the date of death; and

in the event rights to exercise the Option accrue periodically, to the extent of a pro rata portion through the date of death of any additional vesting,
rights that would have accrued on the next vesting date had the Participant not died. The proration shall be based upon the number of days accrued in
the current vesting period prior to the Participant’s date of death provided that in no event shall any portion of the Option vest within one year of the
date of grant.

5.             METHOD OF EXERCISING OPTION.

Subject to the terms and conditions of this Agreement, the Option may be exercised by written notice to the Company or its designee, in substantially the form
of Exhibit A attached hereto (or in such other form acceptable to the Company, which may include electronic notice). Such notice shall state the number of Shares with respect
to which the Option is being exercised and shall be signed by the person exercising the Option (which signature may be provided electronically in a form acceptable to the
Company).  Payment  of  the  Exercise  Price  for  such  Shares  shall  be  made  in  accordance  with  Section  5(c)  of  the  Plan.  The  Company  shall  deliver  such  Shares  as  soon  as
practicable  after  the  notice  shall  be  received,  provided,  however,  that  the  Company  may  delay  issuance  of  such  Shares  until  completion  of  any  action  or  obtaining  of  any
consent, which the Company deems necessary under any applicable law. The Shares as to which the Option shall have been so exercised shall be issued to the Participant in the
form of a book-entry account, for the benefit of the Participant or his or her designee, maintained by the Company’s stock transfer agent or its designee. In the event the Option
shall be exercised, pursuant to Section 4 hereof, by any person other than the Participant, such notice shall be accompanied by appropriate proof of the right of such person to
exercise the Option. All Shares that shall be purchased upon the exercise of the Option as provided herein shall be fully paid and nonassessable.

6.             PARTIAL EXERCISE.

Exercise of this Option to the extent above stated may be made in part at any time and from time to time within the above limits, except that no fractional

share shall be issued pursuant to this Option.

7.             NON-ASSIGNABILITY.

The Option shall not be transferable by the Participant otherwise than by will or by the laws of descent and distribution. If this Option is a Nonstatutory Stock
Option then it may also be transferred pursuant to a qualified domestic relations order as defined by the Code or Title I of the Employee Retirement Income Security Act or the
rules thereunder. Except as provided above in this paragraph, the Option shall be exercisable, during the Participant’s lifetime, only by the Participant (or, in the event of legal
incapacity or incompetency, by the Participant’s guardian or representative) and shall not be assigned, pledged or hypothecated in any way (whether by operation of law or
otherwise) and shall not be subject to execution, attachment or similar process. Any attempted transfer, assignment, pledge, hypothecation or other disposition of the Option or
of any rights granted hereunder contrary to the provisions of this Section 7, or the levy of any attachment or similar process upon the Option shall be null and void.

8.             NO RIGHTS AS STOCKHOLDER UNTIL EXERCISE.

The Participant shall have no rights as a stockholder with respect to Shares subject to this Agreement until entry of the Shares in the Company’s book-entry
account, in the name of the Participant or his or her designee, maintained by the Company’s stock transfer agent or its designee. Except as is expressly provided in the Plan with
respect to certain changes in the capitalization of the Company, no adjustment shall be made for dividends or similar rights for which the record date is prior to the date of such
registration.

5

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
9.             ADJUSTMENTS.

The  Plan  contains  provisions  covering  the  treatment  of  Options  in  a  number  of  contingencies  such  as  stock  splits  and  mergers.  Provisions  in  the  Plan  for
adjustment with respect to stock subject to Options and the related provisions with respect to successors to the business of the Company are hereby made applicable hereunder
and are incorporated herein by reference.

10.           TAXES.

The  Participant  acknowledges  and  agrees  that  (i)  any  income  or  other  taxes  due  from  the  Participant  with  respect  to  this  Option  or  the  Shares  issuable
pursuant to this Option shall be the Participant’s responsibility; (ii) the Participant was free to use professional advisors of his or her choice in connection with this Agreement,
has received advice from his or her professional advisors in connection with this Agreement, understands its meaning and import, and is entering into this Agreement freely and
without coercion or duress; (iii) the Participant has not received and is not relying upon any advice, representations or assurances made by or on behalf of the Company or any
Affiliate  or  any  employee  of  or  counsel  to  the  Company  or  any  Affiliate  regarding  any  tax  or  other  effects  or  implications  of  the  Option,  the  Shares  or  other  matters
contemplated by this Agreement; and (iv) neither the Committee, the Company, its Affiliates, nor any of its officers or directors, shall be held liable for any applicable costs,
taxes, or penalties associated with the Option if, in fact, the Internal Revenue Service were to determine that the Option constitutes deferred compensation under Section 409A
of the Code.

If this Option is designated in the Stock Option Grant Notice as a Nonstatutory Stock Option or if the Option is an ISO and is converted into a Nonstatutory
Stock Option and such Nonstatutory Stock Option is exercised, the Participant agrees that the Company may withhold from the Participant’s remuneration, if any, the minimum
statutory  amount  of  federal,  state  and  local  withholding  taxes  attributable  to  such  amount  that  is  considered  compensation  includable  in  such  person’s  gross  income. At  the
Company’s  discretion,  and  to  the  extent  permitted  by  applicable  law,  the  Participant  agrees  that  the  amount  required  to  be  withheld  may  be  withheld  in  cash  from  such
remuneration,  or  in  kind  from  the  Shares  otherwise  deliverable  to  the  Participant  on  exercise  of  the  Option.  The  Participant  further  agrees  that,  if  the  Company  does  not
withhold an amount from the Participant’s remuneration sufficient to satisfy the Company’s income tax withholding obligation, the Participant will reimburse the Company on
demand,  in  cash,  for  the  amount  under-withheld  and  if  reimbursement  is  not  permissible  under  applicable  law,  the  Participant  will  deliver  sufficient  funds  to  satisfy  any
withholding obligation in advance of, or simultaneous with, the exercise of the Option and the Company is not required to recognize the exercise of any such Option to the
extent the withholding obligations have not been so satisfied.

11.              PURCHASE FOR INVESTMENT.

Unless the offering and sale of the Shares to be issued upon the particular exercise of the Option shall have been effectively registered under the Securities
Act,  the  Company  shall  be  under  no  obligation  to  issue  the  Shares  covered  by  such  exercise  unless  the  Company  has  determined  that  such  exercise  and  issuance  would  be
exempt from the registration requirements of the Securities Act and until the following conditions have been fulfilled:

(a)

The person(s) who exercise the Option shall warrant to the Company, at the time of such exercise, that such person(s) are acquiring such Shares for
their own respective accounts, for investment, and not with a view to, or for sale in connection with, the distribution of any such Shares, in which
event the person(s) acquiring such Shares shall be bound by the provisions of the following legend which shall be endorsed upon any certificate(s)
evidencing the Shares issued pursuant to such exercise:

“The shares represented by this certificate have been taken for investment and they may not be sold or otherwise transferred by any person, including
a pledgee, unless (1) either (a) a Registration Statement with respect to such shares shall be effective under the Securities Act of 1933, as amended, or
(b) the Company shall have received an opinion of counsel satisfactory to it that an exemption from registration under such Act is then available, and
(2) there shall have been compliance with all applicable state securities laws;” and

6

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(b)

If the Company so requires, the Company shall have received an opinion of its counsel that the Shares may be issued upon such particular exercise in
compliance with the Securities Act without registration thereunder. Without limiting the generality of the foregoing, the Company may delay issuance
of the Shares until completion of any action or obtaining of any consent, which the Company deems necessary under any applicable law (including
without limitation state securities or “blue sky” laws).

12.           NO OBLIGATION TO MAINTAIN RELATIONSHIP.

The  Participant  acknowledges  that:  (i)  the  Company  is  not  by  the  Plan  or  this  Option  obligated  to  continue  the  Participant  as  an  employee,  director  or
Consultant of the Company or an Affiliate; (ii) the Plan is discretionary in nature and may be suspended or terminated by the Company at any time; (iii) the grant of the Option
is a one-time benefit which does not create any contractual or other right to receive future grants of options, or benefits in lieu of options; (iv) all determinations with respect to
any such future grants, including, but not limited to, the times when options shall be granted, the number of shares subject to each option, the option price, and the time or times
when each option shall be exercisable, will be at the sole discretion of the Company; (v) the Participant’s participation in the Plan is voluntary; (vi) the value of the Option is an
extraordinary  item  of  compensation  which  is  outside  the  scope  of  the  Participant’s  employment  or  consulting  contract,  if  any;  and  (vii)  the  Option  is  not  part  of  normal  or
expected  compensation  for  purposes  of  calculating  any  severance,  resignation,  redundancy,  end  of  service  payments,  bonuses,  long-service  awards,  pension  or  retirement
benefits or similar payments.

13.           IF OPTION IS INTENDED TO BE AN ISO.

If  this  Option  is  designated  in  the  Stock  Option  Grant  Notice  as  an  ISO  so  that  the  Participant  (or,  in  the  case  of  death,  the  legal  representative  of  the
Participant’s estate) may qualify for the favorable tax treatment provided to holders of Options that meet the standards of Section 422 of the Code then any provision of this
Agreement or the Plan which conflicts with the Code so that this Option would not be deemed an ISO is null and void and any ambiguities shall be resolved so that the Option
qualifies as an ISO. The Participant should consult with the Participant’s own tax advisors regarding the tax effects of the Option  and  the  requirements  necessary  to  obtain
favorable tax treatment under Section 422 of the Code, including, but not limited to, holding period requirements.

Notwithstanding  the  foregoing,  to  the  extent  that  the  Option  is  designated  in  the  Stock  Option  Grant  Notice  as  an  ISO  and  is  not  deemed  to  be  an  ISO
pursuant to Section 422(d) of the Code because the aggregate Fair Market Value (determined as of the Date of Option Grant) of any of the Shares with respect to which this ISO
is granted becomes exercisable for the first time during any calendar year in excess of $100,000, the portion of the Option representing such excess value shall be treated as a
Nonstatutory Stock Option and the Participant shall be deemed to have taxable income measured by the difference between the then Fair Market Value of the Shares received
upon exercise and the price paid for such Shares pursuant to this Agreement.

ISO is not an ISO or for any action taken by the Committee, including without limitation the conversion of an ISO to a Nonstatutory Stock Option.

Neither the Company nor any Affiliate shall have any liability to the Participant, or any other party, if the Option (or any part thereof) that is intended to be an

14.           NOTICE TO COMPANY OF DISQUALIFYING DISPOSITION OF AN ISO.

If this Option is designated in the Stock Option Grant Notice as an ISO then the Participant agrees to notify the Company in writing immediately after the
Participant makes a Disqualifying Disposition of any of the Shares acquired pursuant to the exercise of the ISO. A Disqualifying Disposition is defined in Section 424(c) of the
Code and includes any disposition (including any sale) of such Shares before the later of (a) two years after the date the Participant was granted the ISO or (b) one year after the
date the Participant acquired Shares by exercising the ISO, except as otherwise provided in Section 424(c) of the Code. If the Participant has died before the Shares are sold,
these holding period requirements do not apply and no Disqualifying Disposition can occur thereafter.

7

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
15.           NOTICES.

Any notices required or permitted by the terms of this Agreement or the Plan shall he given by recognized courier service, facsimile, registered or certified

mail, return receipt requested, addressed as follows:

If to the Company:

Xenetic Biosciences, Inc.
40 Speen Street, Ste 102
Framingham, MA 01701
Attention: CFO

If to the Participant, at the address set forth on the Stock Option Grant Notice.

or to such other address or addresses of which notice in the same manner has previously been given. Any such notice shall be deemed to have been given upon the earlier of
receipt, one business day following delivery to a recognized courier service or three business days following mailing by registered or certified mail.

16.           GOVERNING LAW.

This Agreement shall be governed by and construed in accordance with the laws of Delaware, without giving effect to the conflict of law principles thereof.
For the purpose of litigating any dispute that arises under this Agreement, the parties hereby consent to exclusive jurisdiction in Delaware and agree that such litigation shall be
conducted in the state courts of Delaware or the federal courts of the United States located in Delaware.

17.           BENEFIT OF AGREEMENT,

Subject to the provisions of the Plan and the other provisions hereof, this Agreement shall be for the benefit of and shall be binding upon the heirs, executors,

administrators, successors and assigns of the parties hereto.

18.           ENTIRE AGREEMENT.

This Agreement, together with the Plan, embodies the entire agreement and understanding between the parties hereto with respect to the subject matter hereof
and supersedes all prior oral or written agreements and understandings relating to the subject matter hereof. No statement, representation, warranty, covenant or agreement not
expressly set forth in this Agreement shall affect or be used to interpret, change or restrict, the express terms and provisions of this Agreement, provided however, in any event,
this Agreement shall be subject to and governed by the Plan.

19.           MODIFICATIONS AND AMENDMENTS.

The terms and provisions of this Agreement may be modified or amended as provided in the Plan.

8

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
20.           WAIVERS AND CONSENTS.

Except as provided in the Plan, the terms and provisions of this Agreement may be waived, or consent for the departure therefrom granted, only by written
document executed by the party entitled to the benefits of such terms or provisions. No such waiver or consent shall be deemed to be or shall constitute a waiver or consent with
respect  to  any  other  terms  or  provisions  of  this Agreement,  whether  or  not  similar.  Each  such  waiver  or  consent  shall  be  effective  only  in  the  specific  instance  and  for  the
purpose for which it was given, and shall not constitute a continuing waiver or consent.

21.           DATA PRIVACY.

By entering into this Agreement, the Participant: (i) authorizes the Company and each Affiliate, and any agent of the Company or any Affiliate administering
the Plan or providing Plan recordkeeping services, to disclose to the Company or any of its Affiliates such information and data as the Company or any such Affiliate shall
request in order to facilitate the grant of options and the administration of the Plan; and (ii) authorizes the Company and each Affiliate to store and transmit such information in
electronic form for the purposes set forth in this Agreement.

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

9

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTICE OF EXERCISE OF STOCK OPTION

[Form for Shares registered in the United States]

Exhibit A

To: Xenetic Biosciences, Inc.

Ladies and Gentlemen:

I  hereby  exercise  my  Stock  Option  to  purchase  _______________  shares  (the  “Shares”)  of  the  common  stock,  $0.001  par  value,  of  Xenetic  Biosciences,  Inc.  (the

“Company”), at the exercise price of $_______________ per share, pursuant to and subject to the terms of that Stock Option Grant Notice dated _______________, 20___.

I understand the nature of the investment I am making and the financial risks thereof. I am aware that it is my responsibility to have consulted with competent tax and
legal advisors about the relevant national, state and local income tax and securities laws affecting the exercise of the Option and the purchase and subsequent sale of the Shares.

I am paying the option exercise price for the Shares as follows:

_______________________________________

Please issue the Shares (cheek one):

[_] to me; or

[_] to me and _______________________, as joint tenants with right of

survivorship,

at the following address:
________________________________________
________________________________________
________________________________________

My mailing address for stockholder communications, if different from the address listed above, is:

________________________________________
________________________________________
________________________________________

Very truly yours,

___________________________________
     Participant

___________________________________
     Print Name

___________________________________
     Date

10

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 21.1

SUBSIDIARIES OF REGISTRANT

Subsidiary

Country / State of Incorporation

Xenetic Biosciences (UK), Ltd.

United Kingdom registered company

Lipoxen Technologies, Ltd.

Xenetic Bioscience, Inc.

SymbioTec, GmbH

Hesperix S.A.

United Kingdom registered company

Delaware

German registered company

Swiss registered company

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 23.1

INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM’S CONSENT

We consent to the incorporation by reference in the Registration Statement of Xenetic Biosciences, Inc. on Form S-8 (File Nos. 333-222272 and 333-218024), on Form S-3
(File Nos. 333-227572 and 333-233769) of our report dated March 26, 2020, with respect to our audits of the consolidated financial statements of Xenetic Biosciences, Inc. as
of December 31, 2019 and 2018 and for each of the two years in the period ended December 31, 2019, which report is included in this Annual Report on Form 10-K of Xenetic
Biosciences, Inc. for the year ended December 31, 2019.

/s/ Marcum LLP

Marcum LLP
Boston, Massachusetts
March 26, 2020

 
 
 
 
 
 
Exhibit 31.1

I, Jeffrey F Eisenberg, certify that:

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER
PURSUANT TO EXCHANGE ACT RULES 13a-14(a) AND 15d-14(a),
AS ADOPTED PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

1.

2.

3.

4.

I have reviewed this annual report on Form 10-K of Xenetic Biosciences, 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.

Dated: March 26, 2020

By: /s/ Jeffrey F Eisenberg
Jeffrey F. Eisenberg
Principal Executive Officer

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 31.2

I, James Parslow, certify that:

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER
PURSUANT TO EXCHANGE ACT RULES 13a-14(a) AND 15d-14(a),
AS ADOPTED PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

1.

2.

3.

4.

I have reviewed this annual report on Form 10-K of Xenetic Biosciences, 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.

Dated: March 26, 2020

By: /s/ James Parslow
James Parslow
Principal Financial Officer

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 32.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In  connection  with  the Annual  Report  on  Form  10-K  of  Xenetic  Biosciences,  Inc.  (the  “Company”)  for  the  fiscal  year  ended  December  31,  2019,  as  filed  with  the
Securities and Exchange Commission on the date hereof (the “Report”), we, the undersigned officers of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

1.

2.

The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: March 26, 2020

/s/ Jeffrey F. Eisenberg            
Jeffrey F. Eisenberg
Chief Executive Officer
(Principal Executive Officer)

/s/James Parslow            
James Parslow
Chief Financial Officer
(Principal Financial Officer)