Document:

EX-10.1

 Exhibit 10.1 

INVESTMENT AGREEMENT 

This INVESTMENT AGREEMENT (this “Agreement”), dated as of November 19, 2019, is made by and between XOMA Corporation, a
Delaware corporation (the “Company”), and each purchaser identified on the signature pages hereto (each, including its permitted successors and assigns, an “Investor” and collectively, the
“Investors”). 
 WHEREAS, the Company proposes to conduct a rights offering by distributing, at no charge, non-transferable rights (the “Rights”) to purchase shares of the Company’s Common Stock, par value $0.0075 per share (the “Common Stock”) and/or shares of the Company’s
Series Z Convertible Preferred Stock, par value $0.05 per share, having the rights, preferences and privileges as set forth in the Certificate of Designation attached hereto as Exhibit A (the “Preferred Stock” or the
“Preferred Shares”), to each holder of record of shares of the Company’s Common Stock, Series X Convertible Preferred Stock and Series Y Convertible Preferred Stock as of the close of business on November 29, 2019 (the
“Record Date”); 
 WHEREAS, the Rights will be exercisable for a number of shares (the “Offered Shares”)
resulting in gross proceeds to the Company of up to approximately twenty two million dollars ($22,000,000); 
 WHEREAS, following the
distribution of the Rights, the Company will commence an offering registered under the Securities Act of 1933 pursuant to which each holder of a Right will be entitled to subscribe for the following (the “Rights Offering”): (a) for
each share of Common Stock held on the Record Date, the right to purchase a fraction of a share of Common Stock at a subscription price of $22.00 per whole share of Common Stock (the “Common Exercise Price”) or, if, as a result of
such purchase, the holder, together with its affiliates, would beneficially own more than 9.99% of the total number of shares of the Company’s Common Stock then issued and outstanding immediately after the issuance of such shares, the option to
subscribe instead for a number of shares of Preferred Stock (at a subscription price of $22,000 per whole share of Preferred Stock, prorated for fractional shares (the “Preferred Exercise Price”)) equal, on an as-converted basis, to the excess portion of the Common Stock that cannot be purchased due to the foregoing beneficial ownership limitation; and (b) for each share of Series X Convertible Preferred Stock and
Series Y Convertible Preferred Stock held on the Record Date, the right to purchase a fraction of a share of Common Stock at a subscription price equal to the Common Exercise Price, or if not allowed by the Nasdaq Marketplace Rule 5635, then the
right to purchase a fraction of a share of Preferred Stock at a subscription price equal to the Preferred Exercise Price;  

WHEREAS, in order to facilitate the Rights Offering, the Investors have agreed to purchase, at the Common Exercise Price or the Preferred
Exercise Price, as applicable, upon expiration of the Rights Offering, shares of Common Stock or Preferred Stock, as applicable, having an aggregate value equal to the value of all of the Offered Shares that are not purchased pursuant to the
exercise of Rights (including any exercise of Rights by the Investors) in the Rights Offering (the “Backstop Shares”), upon the terms and subject to the conditions set forth herein (the “Backstop Commitment”); and

 WHEREAS, the Board of Directors of the Company has approved the Rights Offering, the terms
of the Preferred Stock, this Agreement and the transactions contemplated hereby. 
 NOW, THEREFORE, in consideration of the mutual promises,
agreements, representations, warranties and covenants contained herein, each of the parties hereto hereby agrees as follows: 
 1. Conduct of Rights
Offering 
 (a) As soon as practicable after the execution hereof, the Company shall publicly announce its plans to conduct the Rights
Offering, including disclosing the Record Date, the material terms of the Rights Offering, the anticipated closing date and the Investor’s purchase commitment hereunder. 

(b) The Company shall use commercially reasonable efforts to: (i) initiate the Rights Offering, on the terms set forth above, within five
business days after the Record Date, and (ii) close the Rights Offering by no later than 5:00 p.m. (Pacific Time) on December 20, 2019. 
 2.
Purchase and Sale of Securities. 
 (a) As soon as practicable, and in any event within two business days after the expiration of the
offering period of the Rights Offering (“Expiration Time”), the Company will give the Investors notice of: (i) the number of Offered Shares purchased by holders of Rights pursuant to validly exercised Rights in the Rights
Offering, and (ii) the number of Backstop Shares (if any) to be purchased hereunder and the aggregate Common Exercise Price or Preferred Exercise Price therefor (a “Purchase Notice”). If there are no Backstop Shares to be
purchased hereunder, the Company shall provide the Investors with notice of this fact (a “Satisfaction Notice”). The date of transmission of a Purchase Notice or a Satisfaction Notice is referred to herein as the
“Determination Date.” 
 (b) On the Closing Date (as defined below), and on the terms and subject to the conditions in this
Agreement, the Investors agree to purchase, and the Company will sell to the Investors, at the Common Exercise Price or Preferred Exercise Price, all of the Backstop Shares (if any), calculated in accordance with Section 2(a). 

(c) The closing of the Rights Offering and the purchase of Backstop Shares by the Investors hereunder (the “Closing”) will
occur as soon as practicable following the Expiration Time and after giving effect to the determinations contemplated by Section 2(a) above (the “Closing Date”). The Company and, to the extent applicable, the Investor, shall
use commercially reasonable efforts to cause the Closing Date to occur within two business days following the Expiration Time. 
 3. Representations and
Warranties of the Company. The Company represents and warrants to, and agrees with the Investors, as set forth below. Except for representations, warranties and agreements that are expressly limited as to their date, each representation,
warranty and agreement is made as of the date hereof and as of the Closing Date, after giving effect to the transactions contemplated hereby: 
  

  
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 (a) Organization and Qualification. Each of the Company and its Subsidiaries (as
defined below) has been duly organized and is validly existing in good standing under the laws of its respective jurisdiction of incorporation, with the requisite power and authority to own its properties and conduct its business as currently
conducted. Each of the Company and its Subsidiaries has been duly qualified as a foreign corporation or organization for the transaction of business and is in good standing under the laws of each other jurisdiction in which it owns or leases
properties or conducts any business so as to require such qualification, except to the extent that the failure to be so qualified or be in good standing has not had and would not reasonably be expected to have, individually or in the aggregate, a
Material Adverse Effect. For the purpose of this Agreement, “Material Adverse Effect” means any act, development, event or occurrence which could be reasonably expected to have a material adverse effect on: (a) the
enforceability of this Agreement, (b) the results of operations, business, properties or financial condition of the Company and its Subsidiaries, taken as a whole, or, if mutually agreed by the Company and the Investors, the prospects of the
Company and its Subsidiaries, taken as a whole, or (c) the Company’s ability to perform in any material respect on a timely basis its obligations under this Agreement to be performed as of the date of determination, other than any such
change, effect, event or circumstance, including, without limitation, any change in the stock price or trading volume of the Common Stock, that resulted directly or indirectly from (i) any change in the United States or foreign economies or
securities or financial markets in general that does not have a disproportionate effect on the Company and its Subsidiaries, (ii) any change that generally affects the industry in which the Company and its Subsidiaries operate that does not
have a disproportionate effect on the Company and its Subsidiaries, taken as a whole, (iii) any change arising in connection with natural disasters, hostilities, acts of war, sabotage or terrorism or military actions or any escalation or
material worsening of any such natural disasters, hostilities, acts of war, sabotage or terrorism or military actions existing as of the date hereof, (iv) any action taken by the Investors, any of their affiliates or permitted successors and
assigns with respect to the transactions contemplated by this Agreement, (v) the effect of any changes in applicable laws or accounting rules that does not have a disproportionate effect on the Company and its Subsidiaries, taken as a whole,
and (vi) any change resulting from compliance with the terms of this Agreement or the consummation of the transactions contemplated by this Agreement. For the purposes of this Agreement, a “Subsidiary” of any person means, with
respect to such person, any significant subsidiary as defined under Rule 1-02(x) of the Regulation S-X. 

(b) Corporate Power and Authority. The Company has the requisite corporate power and authority to enter into, execute and deliver this
Agreement, and to perform its obligations hereunder and consummate the transactions contemplated hereby, including the issuance of the Common Stock, Preferred Shares and the shares of Common Stock issuable upon conversion thereof (the
“Conversion Shares”). The Company has taken all necessary corporate action required for the due authorization, execution, delivery and performance by it of this Agreement and the conduct of the Rights Offering, including the
issuance of the Preferred Shares and the Conversion Shares. 

  
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 (c) Execution and Delivery; Enforceability. This Agreement has been, or prior to its
execution and delivery at the Closing, will be, duly and validly executed and delivered by the Company, and each such document constitutes, or will constitute, the valid and binding obligation of the Company, enforceable against the Company in
accordance with its terms subject to: (i) bankruptcy, insolvency, moratorium and other similar laws now or hereafter in effect relating to or affecting creditors’ rights generally, and (ii) general principles of equity (regardless of
whether considered in a proceeding at law or in equity). 
 (d) Authorized and Issued Capital Stock. The authorized capital stock of
the Company consists of 277,333,332 shares of Common Stock, par value $0.0075 per share and 1,000,000 shares of preferred stock, par value $0.05 per share, 5,003 shares of which have been designated as Series X Convertible Preferred Stock, 1,539
shares of which have been designated as Series Y Convertible Preferred Stock, and 1,000 shares of which will be designated as Series Z Convertible Preferred Stock. As of the close of business on November 19, 2019 (the “Capital Structure
Date”), (i) 8,756,617 shares of Common Stock were issued and outstanding, (ii) 5,003 shares of Series X Convertible Preferred Stock were issued and outstanding, (iii) 1,252.772 shares of Series Y Convertible Preferred Stock were issued and
outstanding and (iv) a total of 1,868,675 shares of Common Stock were potentially issuable upon the exercise or conversion of options, warrants and other convertible securities issued by the Company. Except as set forth in the preceding
sentence, there were no other shares of capital stock issued and outstanding or securities convertible into or exchangeable for shares of capital stock of the Company, in each case as of the Capital Structure Date. Since the Capital Structure Date,
the Company has not issued any capital stock or securities exchangeable or convertible into capital stock of the Company, other than pursuant to stockholder-approved equity compensation plans. 

(e) Issuance. The Backstop Shares to be issued and sold by the Company hereunder, when such Backstop Shares are issued and delivered
against payment therefor in accordance with the terms hereof, will be duly and validly authorized, fully paid and non-assessable, free and clear of all taxes, liens, preemptive rights, rights of first refusal,
subscription and similar rights. The Conversion Shares to be issued upon conversion of the Preferred Shares will be, when issued upon conversion of the Preferred Shares in accordance with the Certificate of Designations, duly and validly authorized,
fully paid and non-assessable, free and clear of all taxes, liens, preemptive rights, rights of first refusal, subscription and similar rights. 

(f) No Conflict. The execution and delivery by the Company of this Agreement and compliance by the Company with all of the provisions
hereof and the consummation of the transactions contemplated herein (including issuance and sale of Preferred Shares and the issuance of the Conversion Shares upon conversion of the Preferred Shares): (i) will not, in any material respect, conflict
with, or result in a breach or violation of, any of the terms or provisions of, or constitute a default under (with or without notice or lapse of time, or both), or result in the acceleration of, any material agreement or instrument to which the
Company or any of its Subsidiaries is a party or by which the Company or any of its Subsidiaries is bound or to which any of the property or assets of the Company or any of its Subsidiaries is subject, (ii) will not result in any violation of
the provisions of the certificate of incorporation or by-laws or comparable organizational documents of the Company or any of its Subsidiaries, and (iii) will

  
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not result in any violation of, or any termination or impairment of any rights under, any law, rule or regulation, any license, authorization, injunction, judgment, order, decree, rule or
regulation of any court or governmental agency or body having jurisdiction over the Company or any of its Subsidiaries or any of their properties, in each case, that is material to the operations of the Company and its
Subsidiaries.    To the actual knowledge of the Company, the Company further represents and warrants that the Investors will not, by virtue of acquiring the Rights, the Common Stock, Preferred Shares or the Conversion Shares
pursuant to this Agreement or through the Rights Offering, trigger any anti-takeover rights or protective provisions, applicable to the Company, including under applicable law or under any stockholder rights agreement (“poison pill”) or
similar agreement or arrangement to which the Company is a party. 
 (g) Consents and Approvals. No consent, approval, authorization,
order, registration, notice, filing, recording or qualification of or with any court or governmental agency or body having jurisdiction over the Company or any of its Subsidiaries or any of their properties is required for the execution and delivery
by the Company of this Agreement, the performance by the Company of its obligations hereunder and the consummation of the transactions contemplated hereby, including the sale, issuance and delivery of the Common Stock or Preferred Shares to the
Investors hereunder and the issuance of the Conversion Shares upon the conversion of the Preferred Shares, except: (i) the registration under the Securities Act of 1933, as amended (the “Securities Act”), of the issuance of the
Rights and the Offered Shares pursuant to the exercise of Rights, (ii) the filing of a Certificate of Designation of Preferences, Rights and Limitations of Series Z Convertible Preferred Stock in the form attached hereto as Exhibit A (the
“Certificate of Designation”) with the Secretary of State of Delaware, which will be filed prior to the Closing Date, and (iii) such consents, approvals, authorizations, registrations or qualifications as may be required under
state securities or Blue Sky laws in connection with the purchase of the Common Stock or Preferred Shares by the Investors, including Form D notice with the SEC, if required. 

(h) SEC Filings. Since January 1, 2019, the Company has timely filed all current and periodic reports required to be filed with the
SEC (the “SEC Reports”) pursuant the Securities Exchange Act of 1934 (the “Exchange Act”). The SEC Reports, as of the time when they were filed, conformed in all material respects to the requirements of the Exchange
Act, and none of the SEC Reports contained any untrue statement of a material fact, or omitted to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading. 

(i) Absence of Changes. Except as disclosed in the SEC Reports or as otherwise contemplated by this Agreement, since September 30,
2019: (i) there has been no event, occurrence or development that has had or that could be reasonably expected to give rise to a Material Adverse Effect; (ii) the Company has not entered into any transaction or agreement (whether or not in the
ordinary course of business) that is material to the Company or incurred any liability or obligation, direct or contingent, that is material to the Company. 

  
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 4. Representations and Warranties of the Investors. Each Investor represents and warrants to, and
agrees with the Company, as set forth below. Except for representations, warranties and agreements that are expressly limited as to their date, each representation, warranty and agreement is made as of the date hereof and as of the Closing Date
after giving effect to the transactions contemplated hereby: 
 (a) Authority. Each Investor has the requisite power and authority to
enter into, execute and deliver this Agreement and to perform its obligations hereunder and consummate the transactions contemplated hereby, including the subscription for the Common Stock or Preferred Shares, as applicable. The Investor has taken
all necessary action required for the due authorization, execution, delivery and performance by it of this Agreement, including the subscription for the Common Stock or Preferred Shares, as applicable. 

(b) Execution and Delivery; Enforceability. This Agreement has been, or prior to its execution and delivery at the Closing will be, duly
and validly executed and delivered by each Investor, and each such document constitutes, or will constitute, the valid and binding obligation of such Investor, enforceable against such Investor in accordance with its terms subject to
(i) bankruptcy, insolvency, moratorium and other similar laws now or hereafter in effect relating to or affecting creditors’ rights generally, and (ii) general principles of equity (regardless of whether considered in a proceeding at
law or in equity). 
 (c) No Registration. Each Investor understands that the neither the Common Stock nor Preferred Shares have been
registered under the Securities Act by reason of a specific exemption from the registration provisions of the Securities Act, the availability of which depends upon, among other things, the bona fide nature of the investment intent and the accuracy
of the Investor’s representations as expressed herein or otherwise made pursuant hereto. 
 (d) Investment Intent. Each Investor
is acquiring the Common Stock and/or Preferred Shares for investment for its own account, not as a nominee or agent, and not with the view to, or for resale in connection with, any distribution thereof not in compliance with applicable securities
laws, and such Investor has no present intention of selling, granting any participation in, or otherwise distributing the same, except in compliance with applicable securities laws. 

(e) Securities Laws Compliance. Neither the Common Stock not the Preferred Shares will be offered for sale, sold or otherwise
transferred by an Investor except pursuant to a registration statement or in a transaction exempt from, or not subject to, registration under the Securities Act and any applicable state securities laws. 

(f) Sophistication. Each Investor has such knowledge and experience in financial and business matters that it is capable of evaluating
the merits and risks of its investment in the Common Stock and/or Preferred Shares being acquired hereunder. Each Investor is a “qualified institutional buyer” within the meaning of Rule 144A under the Securities Act or an “accredited
investor” within the meaning of Rule 501 of Regulation D under the Securities Act. Each Investor understands and is able to bear any economic risks associated with such investment (including, without limitation, the necessity of holding the
Preferred Shares for an indefinite period of time). Without derogating from or limiting the representations and warranties of the Company, each Investor acknowledges that it has been afforded the opportunity to ask questions and receive answers
concerning the Company and to obtain additional information that it has requested to verify the information contained herein. 

  
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 (g) Legended Securities. Each Investor understands and acknowledges that upon the
original issuance thereof, and until such time as the same is no longer required under any applicable requirements of the Securities Act or applicable state securities laws, the Common Stock and Preferred Shares shall be represented by a certificate
bearing the following legend (the “Securities Act Legend”): 
 THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED
WITH THE SECURITIES AND EXCHANGE COMMISSION, OR THE SECURITIES COMMISSION OF ANY STATE UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD (I) EXCEPT PURSUANT TO AN
EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT, (II) PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES
LAWS, AS EVIDENCED BY A LEGAL OPINION OF COUNSEL SELECTED BY THE HOLDER TO SUCH EFFECT, THE SUBSTANCE OF WHICH SHALL BE REASONABLY ACCEPTABLE TO THE COMPANY OR (III) UNLESS SOLD PURSUANT TO RULE 144 OR RULE 144A UNDER THE SECURITIES ACT. 

The foregoing Securities Act Legend shall be promptly removed from Common Stock or Preferred Shares, as applicable, and the Company shall issue, or cause to
be issued, to each applicable Investor a certificate for such Common Stock or Preferred Shares without such legend or any other legend, or, if so requested by such Investor, by electronic delivery at the applicable balance account at the Depository
Trust Company, if one of the following conditions is met: (a) such Common Stock or Preferred Shares are eligible for resale pursuant to Rule 144 of the Securities Act without regard to any volume limitations; (b) in connection with a sale,
assignment or other transfer of such Common Stock or Preferred Shares, such Investor provides the Company with an opinion of counsel, in a generally acceptable form to the Company and its transfer agent, to the effect that such sale, assignment or
transfer of such Common Stock or Preferred Shares may be made without registration under the applicable requirements of the Securities Act and that the legend can be removed from the Common Stock or Preferred Shares; or (c) the Common Stock or
Preferred Shares are registered and sold pursuant to an effective registration statement for resale under the Securities Act. 
 5. Conditions to the
Obligations of the Parties. 
 (a) The obligations of each Investor hereunder to consummate the transactions contemplated hereby shall be
subject to the satisfaction prior to the Closing Date of each of the following conditions (which may be waived in whole or in part by such Investor in its sole discretion): 

(i) Rights Offering. The Rights Offering shall have been completed by the Company before December 31, 2019 on the terms set forth
herein. 

  
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 (ii) Purchase or Satisfaction Notice. Each Investor shall have timely received either
a Purchase Notice from the Company on the Determination Date, certifying the number of Backstop Shares to be purchased pursuant to the Backstop Commitment, or a Satisfaction Notice. 

(iii) Consents. All other governmental and third party notifications, filings, consents, waivers and approvals required for the
consummation of the transactions contemplated by this Agreement shall have been made or received, including filing of the Certificate of Designation with the Secretary of State of Delaware, if required, and any applicable approvals required by the
Nasdaq Stock Market. 
 (iv) Representations and Warranties. The representations and warranties of the Company contained in this
Agreement shall be true and correct in all material respects (except with respect to representations and warranties that are qualified by the term “material” or “Material Adverse Effect” or similar term, which shall be true and
correct in all respects) on the date hereof and as of the Closing Date. 
 (v) No Material Adverse Effect. Since the date of this
Agreement, there shall not have occurred (i) a material adverse change in the financial markets in the United States, any outbreak of hostilities or escalation thereof or other calamity or crisis or any change or development involving a
prospective change in national or international political, financial or economic conditions, (ii) a suspension or material limitation on trading, or minimum or maximum prices for trading have been fixed, or maximum ranges for prices have been
required, by Nasdaq Stock Market or any other securities exchange or by order of the SEC or any other governmental authority, or (iii) a material disruption in commercial banking or securities settlement or clearance services in the United
States, or (iv) a declaration of a banking moratorium by either Federal or New York authorities. 
 (b) The obligation of the Company to
issue and sell the Common Stock or Preferred Shares are subject to the following conditions (which may be waived in whole or in part by the Company in its sole discretion): 

(i) No Legal Impediment to Issuance. No statute, rule, regulation or order shall have been enacted, adopted or issued by any federal,
state or foreign governmental or regulatory authority, and no judgment, injunction, decree or order of any federal, state or foreign court shall have been issued that prohibits the issuance of the Common Stock or Preferred Shares to an applicable
Investor or the consummation of the transactions contemplated by this Agreement. 
 (ii) Representations and Warranties. The
representations and warranties of each Investor shall be true and correct in all material respects (except with respect to representations and warranties that are qualified by the term “material” or “Material Adverse Effect” or
similar term, which shall be true and correct in all respects) on the date hereof and as of the Closing Date. 

  
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 (iii) Rights Offering. The Rights Offering shall have been completed by the Company.

 6. Termination. This Agreement may be terminated by mutual written consent of the Company and the Investors or by the Investors if the Closing has
not been consummated within ten (10) business days from the Expiration Time through no fault of the Investors; provided, however, that no such termination will affect the right of any party to sue for any breach by the other party (or parties).

 7. Notices. All notices and other communications in connection with this Agreement will be in writing and will be deemed given (and will be deemed
to have been duly given upon receipt) if delivered personally, sent via electronic transmission or facsimile (with confirmation), mailed by registered or certified mail (return receipt requested) or delivered by an express courier (with
confirmation) to the parties at the following addresses (or at such other address for a party as will be specified by like notice): 
 If to
the Company: 
 XOMA Corporation 

2200 Powell Street, Suite 310 

Emeryville, CA 94608 
 Attn: Chief
Financial Officer 
 If to the Investor: 

c/o BVF Partners, LP 
 44
Montgomery Street 40th Floor 
 San Francisco, California 94104 

Attn: Matthew Perry 
 8. Assignment; Third
Party Beneficiaries. Neither this Agreement nor any of the rights, interests or obligations under this Agreement may be assigned by any of the parties (whether by operation of law or otherwise) without the prior written consent of the other
party, provided that an applicable Investor may assign part or all of its rights and obligations hereunder to an affiliate of such Investor, provided that the assigning party shall remain liable for any
non-performance of such assignee’s assigned obligations. This Agreement (including the documents and instruments referred to in this Agreement) is not intended to and does not confer upon any person other
than the parties hereto any rights or remedies under this Agreement. 
 9. Prior Negotiations; Entire Agreement. This Agreement (including the
agreements attached as exhibits to and the documents and instruments referred to in this Agreement) constitutes the entire agreement of the parties and supersedes all prior agreements, arrangements or understandings, whether written or oral, between
the parties with respect to the subject matter of this Agreement, except that the parties hereto acknowledge that any confidentiality agreements heretofore executed among the parties will continue in full force and effect. 

  
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 10. Governing Law. All questions concerning the construction, validity, enforcement and
interpretation of the Agreement shall be governed by and construed and enforced in accordance with the internal laws of the State of Delaware, without regard to the principles of conflicts of law thereof. Each party agrees that all legal proceedings
concerning the interpretations, enforcement and defense of the transactions contemplated by this Agreement (whether brought against a party hereto or its respective affiliates, directors, officers, shareholders, employees or agents) shall be
commenced exclusively in the state and federal courts sitting in the State of Delaware. Each party hereby irrevocably submits to the exclusive jurisdiction of the state and federal courts sitting in the State of Delaware for the adjudication of any
dispute hereunder or in connection herewith or with any transaction contemplated hereby or discussed herein (including with respect to the enforcement of the Agreement), and hereby irrevocably waives, and agrees not to assert in any suit, action or
proceeding, any claim that it is not personally subject to the jurisdiction of any such court, that such suit, action or proceeding is improper or is an inconvenient venue for such proceeding. Each party hereby irrevocably waives personal service of
process and consents to process being served in any such suit, action or proceeding by mailing a copy thereof via registered or certified mail or overnight delivery (with evidence of delivery) to such party at the address in effect for notices to it
under this Agreement and agrees that such service shall constitute good and sufficient service of process and notice thereof. Nothing contained herein shall be deemed to limit in any way any right to serve process in any other manner permitted by
law. If either party shall commence an action or proceeding to enforce any provisions of the Agreement, then the prevailing party in such action or proceeding shall be reimbursed by the other party for its reasonable attorneys’ fees and other
costs and expenses incurred with the investigation, preparation and prosecution of such action or proceeding. 
 11. Fees and Expenses. Except as
expressly set forth in the Agreement to the contrary, each party shall pay the fees and expenses of its advisers, counsel, accountants and other experts, if any, and all other expenses incurred by such party incident to the negotiation, preparation,
execution, delivery and performance of this Agreement; provided, however, at the Closing, the Company shall reimburse the Investors for its reasonable and documented legal fees and expenses incurred in connection with this Agreement and
the Rights Offering, not to exceed $50,000 in the aggregate. 
 12. Certain Defined Terms. For purposes of this Agreement, (a) except where
otherwise expressly provided, the term “affiliate” has the meaning set forth in Rule 405 under the Securities Act; and (b) the term “business day” means any day other than a day on which banks are permitted or required to be
closed in New York City. 
 13. Counterparts. This Agreement may be executed in counterparts, all of which will be considered one and the same
agreement and will become effective when counterparts have been signed by each of the parties and delivered to the other party (including via facsimile or other electronic transmission), it being understood that each party need not sign the same
counterpart. 

  
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 14. Waivers and Amendments. This Agreement may be amended, modified, superseded, cancelled, renewed
or extended, and the terms and conditions of this Agreement may be waived, only by a written instrument signed by all the parties or, in the case of a waiver, by the party waiving compliance. No delay on the part of any party in exercising any
right, power or privilege pursuant to this Agreement will operate as a waiver thereof, nor will any waiver on the part of any party of any right, power or privilege pursuant to this Agreement, nor will any single or partial exercise of any right,
power or privilege pursuant to this Agreement, preclude any other or further exercise thereof or the exercise of any other right, power or privilege pursuant to this Agreement. The rights and remedies provided pursuant to this Agreement are
cumulative and are not exclusive of any rights or remedies which any party otherwise may have at law or in equity. 
 15. Waiver of Potential Conflicts
of Interest. Each of the Investors and the Company acknowledge that Gibson, Dunn & Crutcher LLP (“Gibson Dunn”) has represented and currently represents the Company and the Investors in unrelated matters. In the course
of such representation, Gibson Dunn may have come into possession of confidential information relating to each party. Each of the Investors and the Company acknowledges that Gibson Dunn is representing only the Investors in this transaction and may
not share the Company’s confidential information; similarly, Gibson Dunn may not share the Investors’ confidential information with the Company. By executing this Agreement, each of the Investors and the Company hereby waive any actual or
potential conflict of interest which has or may arise as a result of Gibson Dunn’s representation of such persons and entities, and represents that it has had the opportunity to consult with independent counsel concerning the giving of this
waiver. 
 16. Headings. The headings in this Agreement are for reference purposes only and will not in any way affect the meaning or interpretation
of this Agreement. 
 [Signature Page Follows] 

  
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 IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be signed by their
respective officers thereunto duly authorized, all as of the date first written above. 
  

			
	 XOMA CORPORATION

		
	By:	 	 /s/ James Neal

	 Name:
	 	 James Neal

	 Title:
	 	 Chief Executive Officer

	
	 BIOTECHNOLOGY VALUE FUND, L.P.

		
	 By:
	 	 BVF Partners L.P.,

General Partner

		
	 By:
	 	 BVF, Inc.

General Partner

		
	By:	 	 /s/ Mark Lampert

	 Name:
	 	 Mark Lampert

	 Title:
	 	 President

	
	 BIOTECHNOLOGY VALUE FUND II, L.P.

		
	 By:
	 	 BVF Partners L.P.,

General Partner

		
	 By:
	 	 BVF, Inc.

General Partner

		
	By:	 	 /s/ Mark Lampert

	 Name:
	 	 Mark Lampert

	 Title:
	 	 President

  
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	BIOTECHNOLOGY VALUE TRADING FUND OS, L.P.
		
	By:	 	 BVF Partners OS, Ltd.,
 General
Partner

		
	By:	 	 BVF Partners L.P.
 Sole Member

		
	By:	 	 BVF, Inc.
 General Partner

		
	By:	 	 /s/ Mark Lampert

	Name:	 	Mark Lampert
	Title:	 	President

  
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	MSI BVF SPV, L.L.C.
		
	By:	 	 BVF Partners L.P.,
 Attorney-in-fact

		
	By:	 	 BVF, Inc.
 General Partner

		
	By:	 	 /s/ Mark Lampert

	Name:	 	Mark Lampert
	Title:	 	President

  
 14 

 EXHIBIT A 

SERIES Z CERTIFICATE OF DESIGNATION 

  
 15 

 XOMA CORPORATION 

CERTIFICATE OF DESIGNATION OF PREFERENCES, 

RIGHTS AND LIMITATIONS 

OF 
 SERIES Z CONVERTIBLE
PREFERRED STOCK 
 PURSUANT TO SECTION 151 OF THE 

DELAWARE GENERAL CORPORATION LAW 

XOMA CORPORATION, a Delaware corporation (the “Corporation”), in accordance with the provisions of
Section 103 of the Delaware General Corporation Law (the “DGCL”) does hereby certify that, in accordance with Sections 141(c) and 151 of the DGCL, the following resolution was duly adopted by the Board of Directors of
the Corporation by a duly authorized committee thereof on November 6, 2018: 
 RESOLVED, pursuant to authority expressly set
forth in the Certificate of Incorporation of the Corporation, as amended (the “Certificate of Incorporation ”), the issuance of a series of Preferred Stock designated as the Series Z Convertible Preferred Stock, par value
$0.05 per share, of the Corporation is hereby authorized and the designation, number of shares, powers, preferences, rights, qualifications, limitations and restrictions thereof (in addition to any provisions set forth in the Certificate of
Incorporation, as amended, that are applicable to the Preferred Stock of all classes and series) are hereby fixed, and the Certificate of Designation of Preferences, Rights and Limitations of Series Z Convertible Preferred Stock is hereby approved
as follows: 
 SERIES Z CONVERTIBLE PREFERRED STOCK 

Section 1. Definitions. For the purposes hereof, the following terms shall have the following meanings: 

“Affiliate” means any Person or entity that, directly or indirectly through one or more intermediaries, controls or is
controlled by or is under common control with a person or entity, as such terms are used in and construed under Rule 144 under the Securities Act. With respect to a Holder, any investment fund or managed account that is managed on a discretionary
basis by the same investment manager as such Holder will be deemed to be an Affiliate of such Holder. 
 “Business
Day” means any day except Saturday, Sunday, any day which shall be a federal legal holiday in the United States or any day on which banking institutions in the State of New York are authorized or required by law or other governmental
action to close. 
 “Closing Sale Price” means, for any security as of any date, the last closing trade price for
such security prior to 4:00 p.m., New York City time, on the principal securities exchange or trading market where such security is listed or traded, as reported by Bloomberg, L.P. (or an equivalent, reliable reporting service mutually acceptable to
and hereafter designated by Holders of a majority of the then-outstanding Series Z Preferred Stock and the Corporation), or if the foregoing do not apply, the last trade price of such security in the over-the-counter market on the electronic bulletin board for such security as reported by Bloomberg, L.P., or, if no last trade price is reported for such security by Bloomberg, L.P., the average of the bid
prices of any market makers for such security as reported on the OTC Pink Market by OTC Markets Group, Inc. If the Closing Sale Price cannot be calculated for a security on a particular date on any of the foregoing bases, the Closing Sale Price of
such security on such date shall be the fair market value as determined in good faith by the Board of Directors of the Corporation. 

“Commission” means the Securities and Exchange Commission. 

“Common Stock” means the Corporation’s common stock, par value $0.0075 per share, and stock of any other class of
securities into which such securities may hereafter be reclassified or changed into. 

 “Conversion Shares” means, collectively, the shares of Common Stock
issuable upon conversion of the shares of Series Z Preferred Stock in accordance with the terms hereof. 
 “Daily Failure
Amount” means the product of (x) .005 multiplied by (y) the Closing Sale Price of the Common Stock on the applicable Share Delivery Date. 

“Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated
thereunder. 
 “Holder” means any holder of Series Z Preferred Stock. 

“Person” means any individual or corporation, partnership, trust, incorporated or unincorporated association, joint
venture, limited liability company, joint stock company, government (or an agency or subdivision thereof) or other entity of any kind. 

“Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder.

 “Trading Day” means a day on which the Common Stock is traded for any period on the principal securities exchange
or if the Common Stock is not traded on a principal securities exchange, on a day that the Common Stock is traded on another securities market on which the Common Stock is then being traded. 

Section 2. Designation, Amount and Par Value; Assignment. 

(a) The series of preferred stock designated by this Certificate of Designation shall be designated as the Corporation’s Series Z
Convertible Preferred Stock (the “Series Z Preferred Stock”) and the number of shares so designated shall be 1,000. Each share of Series Z Preferred Stock shall have a par value of $0.05 per share. The Series Z Preferred
Stock may be issued in certificated form or in book-entry form, as requested by a Holder. To the extent that any shares of Series Z Preferred Stock are issued in book-entry form, references herein to “certificates” shall instead refer to
the book-entry notation relating to such shares. 
 (b) The Corporation shall register shares of the Series Z Preferred Stock, upon records
to be maintained by the Corporation for that purpose (the “Series Z Preferred Stock Register”), in the name of the Holders thereof from time to time. The Corporation may deem and treat the registered Holder of shares of
Series Z Preferred Stock as the absolute owner thereof for the purpose of any conversion thereof and for all other purposes. The Corporation shall register the transfer of any shares of Series Z Preferred Stock in the Series Z Preferred Stock
Register, upon surrender of the certificates evidencing such shares to be transferred, duly endorsed by the Holder thereof, to the Corporation at its address specified herein. Upon any such registration or transfer, a new certificate evidencing the
shares of Series Z Preferred Stock so transferred shall be issued to the transferee and a new certificate evidencing the remaining portion of the shares not so transferred, if any, shall be issued to the transferring Holder, in each case, within
three Business Days. The provisions of this Certificate of Designation are intended to be for the benefit of all Holders from time to time and shall be enforceable by any such Holder. 

Section 3. Dividends. Holders shall not be entitled to receive any dividends in respect of the
Series Z Preferred Stock, except to the extent that dividends are paid on the Corporation’s Common Stock, in which case the Holders of the Series Z Preferred Stock shall be entitled to participate in such dividends, on an as-converted basis (without regard to the Beneficial Ownership Limitation). 

Section 4. Voting Rights Amendments. 

(a) Except as otherwise provided herein or as otherwise required by the DGCL, the Series Z Preferred Stock shall have no voting rights. 

 (b) Notwithstanding Section 4(a), so long as at least 50% of the authorized shares of
Series Z Preferred Stock are outstanding, the Corporation shall not, without the affirmative vote of the Holders of a majority of the then outstanding shares of the Series Z Preferred Stock: (a) alter or amend this Certificate of Designation,
amend or repeal any provision of, or add any provision to, the Certificate of Incorporation or bylaws of the Corporation, or file any articles of amendment, certificate of designation, preferences, limitations and relative rights of any series of
preferred stock, if such action would adversely alter or change the preferences, rights, privileges or powers of, or restrictions provided for the benefit of the Series Z Preferred Stock, regardless of whether any of the foregoing actions shall be
by means of amendment to the Certificate of Incorporation or by merger, consolidation or otherwise, (b) issue further shares of Series Z Preferred Stock or increase or decrease (other than by conversion) the number of authorized shares of
Series Z Preferred Stock, or (c) enter into any agreement with respect to any of the foregoing. 
 (c) Any vote required or permitted
under Section 4(b) may be taken at a meeting of the Holders of the Series Z Preferred Stock or through the execution of an action by written consent in lieu of such meeting, provided that the consent is executed by Holders representing a
majority of the outstanding shares of Series Z Preferred Stock. 
 Section 5. Rank; Liquidation. 

(a) The Series Z Preferred Stock shall rank: (i) senior to any class or series of capital stock of the Corporation hereafter created
specifically ranking by its terms junior to any Series Z Preferred Stock (“Junior Securities”); (ii) on parity with the Common Stock, Series X Preferred Stock, Series Y Preferred Stock and any other class or series of
capital stock of the Corporation hereafter created specifically ranking by its terms on parity with the Series Z Preferred Stock (the “Parity Securities”); and (iii) junior to any class or series of capital stock of the
Corporation hereafter created specifically ranking by its terms senior to any Series Z Preferred Stock (“Senior Securities”), in each case, as to distributions of assets upon liquidation, dissolution or winding up of the
Corporation, whether voluntarily or involuntarily (all such distributions being referred to collectively as “Distributions”). 

(b) Subject to the prior and superior rights of the holders of any Senior Securities of the Corporation, upon liquidation, dissolution or
winding up of the Corporation, whether voluntary or involuntary, each Holder of shares of Series Z Preferred Stock shall be entitled to receive, in preference to any Distributions of any of the assets or surplus funds of the Corporation to the
holders of the Junior Securities, and pari passu with any Distribution to the holders of the Parity Securities, an equivalent amount of Distributions as would be paid on the Common Stock underlying the Series Z Preferred Stock, determined on an as-converted basis (without regard to the Beneficial Ownership Limitation), plus an additional amount equal to any dividends declared but unpaid on such shares, before any payments shall be made or any assets
distributed to holders of any class of Junior Securities. If, upon any such liquidation, dissolution or winding up of the Corporation, the assets of the Corporation shall be insufficient to pay the Holders of shares of the Series Z Preferred Stock
the amount required under the preceding sentence, then all remaining assets of the Corporation shall be distributed ratably to Holders of the shares of the Series Z Preferred Stock and holders of Parity Securities. 

Section 6. Conversion. 

(a) Conversions at Option of Holder. Each share of Series Z Preferred Stock shall be convertible, at any time and from time to time from
and after the date of issuance, at the option of the Holder thereof, into a number of shares of Common Stock equal to the Conversion Ratio. Holders shall effect conversions by providing the Corporation with the form of conversion notice attached
hereto as Annex A (a “Notice of Conversion”), duly completed and executed. Other than a conversion following a Fundamental Transaction or following a notice provided for under Section 7(d)(ii) hereof, the
Notice of Conversion must specify at least a number of shares of Series Z Preferred Stock to be converted equal to the lesser of (x) 100 shares (such number subject to appropriate adjustment following the occurrence of an event specified in
Section 7(a) hereof) and (y) the number of shares of Series Z Preferred Stock then held by the Holder. Provided the Corporation’s transfer agent is participating in the Depository Trust Company (“DTC”) Fast
Automated Securities Transfer program, the Notice of Conversion may specify, at the Holder’s election, whether the applicable Conversion Shares shall be credited to the account of the Holder’s prime broker with DTC through its Deposit
Withdrawal Agent Commission system (a “DWAC Delivery”). The “Conversion Date”, or the date on which a conversion shall be deemed effective, shall be defined as the Trading Day that the Notice of
Conversion, completed and executed, is sent by facsimile to, and received during regular business hours by, the Corporation; provided that the original certificate(s) (if applicable) 

 
representing such shares of Series Z Preferred Stock being converted, duly endorsed, and the accompanying Notice of Conversion, are received by the Corporation within two (2) Trading Days
thereafter. In all other cases, the Conversion Date shall be defined as the Trading Day on which the original share certificate(s) (if applicable) of Series Z Preferred Stock being converted, duly endorsed, and the accompanying Notice of Conversion,
are received by the Corporation. The calculations set forth in the Notice of Conversion shall control in the absence of manifest or mathematical error. 

(b) Conversion Ratio. The “Conversion Ratio” for each share of Series Z Preferred Stock shall be 1,000 shares of
Common Stock issuable upon the conversion of each share of Series Z Preferred Stock (corresponding to a ratio of 1000:1). 
 (c)
Beneficial Ownership Limitation. Notwithstanding anything herein to the contrary, the Corporation shall not effect any conversion of the Series Z Preferred Stock, and a Holder shall not have the right to convert any portion of the Series Z
Preferred Stock, to the extent that, after giving effect to an attempted conversion set forth on an applicable Notice of Conversion, such Holder (together with such Holder’s Affiliates, and any other Person whose beneficial ownership of Common
Stock would be aggregated with the Holder’s for purposes of Section 13(d) or Section 16 of the Exchange Act and the applicable regulations of the Commission, including any “group” of which the Holder is a member (the
foregoing, “Attribution Parties”)) would beneficially own a number of shares of Common Stock in excess of the Beneficial Ownership Limitation (as defined below). For purposes of the foregoing sentence, the number of shares of
Common Stock beneficially owned by such Holder and its Attribution Parties shall include the number of shares of Common Stock issuable upon conversion of the Series Z Preferred Stock subject to the Notice of Conversion with respect to which such
determination is being made, but shall exclude the number of shares of Common Stock which are issuable upon (A) conversion of the remaining, unconverted Series Z Preferred Stock beneficially owned by such Holder or any of its Attribution
Parties, and (B) exercise or conversion of the unexercised or unconverted portion of any other securities of the Corporation (including any warrants) beneficially owned by such Holder or any of its Attribution Parties that are subject to a
limitation on conversion or exercise similar to the limitation contained herein. For purposes of this Section 6(c), beneficial ownership shall be calculated in accordance with Section 13(d) of the Exchange Act and the applicable
regulations of the Commission. In addition, for purposes hereof, “group” has the meaning set forth in Section 13(d) of the Exchange Act and the applicable regulations of the Commission. For purposes of this Section 6(c), in
determining the number of outstanding shares of Common Stock, a Holder may rely on the number of outstanding shares of Common Stock as stated in the most recent of the following: (A) the Corporation’s most recent periodic or annual filing
with the Commission, as the case may be, (B) a more recent public announcement by the Corporation that is filed with the Commission, or (C) a more recent notice by the Corporation or the Corporation’s transfer agent to the Holder
setting forth the number of shares of Common Stock then outstanding. Upon the written request of a Holder (which may be by email with confirmation), the Corporation shall, within three (3) Trading Days thereof, confirm in writing to such Holder
(which may be via email) the number of shares of Common Stock then outstanding. In any case, the number of outstanding shares of Common Stock shall be determined after giving effect to any actual conversion or exercise of securities of the
Corporation, including shares of Series Z Preferred Stock, by such Holder or its Attribution Parties since the date as of which such number of outstanding shares of Common Stock was last publicly reported or confirmed to the Holder. The
“Beneficial Ownership Limitation” shall be 19.99% of the number of shares of the Common Stock outstanding immediately after giving effect to the issuance of shares of Common Stock pursuant to such Notice of Conversion (to the
extent permitted pursuant to this Section 6(c)), provided that a Holder may, upon providing written notice to the Corporation, elect to increase or decrease the Beneficial Ownership Limitation (not to exceed the limits under Nasdaq Marketplace
Rule 5635(b), to the extent then applicable), with any increase to be effective only after 61 days from delivery of such notice to the Corporation. The Corporation shall be entitled to rely on representations made to it by the Holder in any Notice
of Conversion regarding its Beneficial Ownership Limitation. 
 (d) Mechanics of Conversion 

i. Delivery of Certificate or Electronic Issuance Upon Conversion. Not later than three Trading Days after the applicable Conversion
Date, or if the Holder requests the issuance of physical certificate(s), two Trading Days after receipt by the Corporation of the original certificate(s) representing such shares of Series Z Preferred Stock being converted, duly endorsed, and the
accompanying Notice of Conversion (the “Share Delivery Date”), the 

 
Corporation shall either: (a) deliver, or cause to be delivered, to the converting Holder a physical certificate or certificates representing the number of Conversion Shares being acquired
upon the conversion of shares of Series Z Preferred Stock; or (b) in the case of a DWAC Delivery, electronically transfer such Conversion Shares by crediting the account of the Holder’s prime broker with DTC through its DWAC system. If in
the case of any Notice of Conversion such certificate or certificates are not delivered to or as directed by or, in the case of a DWAC Delivery, such shares are not electronically delivered to or as directed by, the applicable Holder by the Share
Delivery Date, the applicable Holder shall be entitled to elect to rescind such Notice of Conversion by written notice to the Corporation at any time on or before its receipt of such certificate or certificates for Conversion Shares or electronic
receipt of such shares, as applicable, in which event the Corporation shall promptly return to such Holder any original Series Z Preferred Stock certificate delivered to the Corporation and such Holder shall promptly return to the Corporation any
Common Stock certificates or otherwise direct the return of any shares of Common Stock delivered to the Holder through the DWAC system, representing the shares of Series Z Preferred Stock unsuccessfully tendered for conversion to the Corporation.

 ii. Obligation Absolute. Subject to Section 6(c) hereof and subject to Holder’s right to rescind a Notice of Conversion
pursuant to Section 6(d)(i) above, the Corporation’s obligation to issue and deliver the Conversion Shares upon conversion of Series Z Preferred Stock in accordance with the terms hereof are absolute and unconditional, irrespective of any
action or inaction by a Holder to enforce the same, any waiver or consent with respect to any provision hereof, the recovery of any judgment against any Person or any action to enforce the same, or any setoff, counterclaim, recoupment, limitation or
termination, or any breach or alleged breach by such Holder or any other Person of any obligation to the Corporation or any violation or alleged violation of law by such Holder or any other Person, and irrespective of any other circumstance which
might otherwise limit such obligation of the Corporation to such Holder in connection with the issuance of such Conversion Shares. Subject to Section 6(c) hereof and subject to Holder’s right to rescind a Notice of Conversion pursuant to
Section 6(d)(i) above, in the event a Holder shall elect to convert any or all of its Series Z Preferred Stock, the Corporation may not refuse conversion based on any claim that such Holder or anyone associated or affiliated with such Holder
has been engaged in any violation of law, agreement or for any other reason, unless an injunction from a court, on notice to Holder, restraining and/or enjoining conversion of all or part of the Series Z Preferred Stock of such Holder shall have
been sought and obtained by the Corporation, and the Corporation posts a surety bond for the benefit of such Holder in the amount of 150% of the value of the Conversion Shares into which would be converted the Series Z Preferred Stock which is
subject to such injunction, which bond shall remain in effect until the completion of arbitration/litigation of the underlying dispute and the proceeds of which shall be payable to such Holder to the extent it obtains judgment. In the absence of
such injunction, the Corporation shall, subject to Section 6(c) hereof and subject to Holder’s right to rescind a Notice of Conversion pursuant to Section 6(d)(i) above, issue Conversion Shares upon a properly noticed conversion. If
the Corporation fails to deliver to a Holder such certificate or certificates, or electronically deliver (or cause its transfer agent to electronically deliver) such shares in the case of a DWAC Delivery, pursuant to Section 6(d)(i) on or prior
to the fifth Trading Day after the Share Delivery Date applicable to such conversion (other than a failure caused by incorrect or incomplete information provided by Holder to the Corporation), then, unless the Holder has rescinded the applicable
Notice of Conversion pursuant to Section 6(d)(i) above, the Corporation shall pay (as liquidated damages and not as a penalty) to such Holder an amount payable, at the Corporation’s option, either (a) in cash or (b) to the extent
that it would not cause the Holder or its Attribution Parties to exceed the Beneficial Ownership Limitation, in shares of Common Stock that are valued for these purposes at the Closing Sale Price on the date of such calculation, in each case equal
to the product of (x) the number of Conversion Shares required to have been issued by the Corporation on such Share Delivery Date, (y) an amount equal to the Daily Failure Amount and (z) the number of Trading Days actually lapsed
after such fifth Trading Day after the Share Delivery Date during which such certificates have not been delivered, or, in the case of a DWAC Delivery, such shares have not been electronically delivered; provided, however, the Holder shall
only receive up to such amount of shares of Common Stock such that Holder and its Attribution Parties and any other persons or entities whose beneficial ownership of Common Stock would be aggregated with the Holder’s for purposes of
Section 13(d) of the Exchange Act (including shares held by any “group” of which the Holder is a member, but excluding shares beneficially owned by virtue of the ownership of securities or rights to acquire securities that have
limitations on the right to convert, exercise or purchase similar to the limitation set forth herein) shall not collectively beneficially own greater than the Beneficial Ownership Limitation. Nothing herein shall limit a Holder’s right to
pursue actual damages for the Corporation’s failure to deliver Conversion Shares within the period specified herein and such Holder shall have the right to pursue all remedies available to it hereunder, at law or in equity including, without
limitation, a decree of specific performance and/or injunctive relief; provided that Holder shall not receive duplicate damages for the Corporation’s failure to deliver Conversion Shares within the period specified herein. The exercise of any
such rights shall not prohibit a Holder from seeking to enforce damages pursuant to any other Section hereof or under applicable law. 

 iii. Compensation for Buy-In on Failure to Timely
Deliver Certificates Upon Conversion. If the Corporation fails to deliver to a Holder the applicable certificate or certificates or to effect a DWAC Delivery, as applicable, by the Share Delivery Date pursuant to Section 6(d)(i) (other than
a failure caused by incorrect or incomplete information provided by Holder to the Corporation), and if after such Share Delivery Date such Holder is required by its brokerage firm to purchase (in an open market transaction or otherwise), or the
Holder’s brokerage firm otherwise purchases, shares of Common Stock to deliver in satisfaction of a sale by such Holder of the Conversion Shares which such Holder was entitled to receive upon the conversion relating to such Share Delivery Date
(a “Buy-In”), then the Corporation shall (A) pay in cash to such Holder (in addition to any other remedies available to or elected by such Holder) the amount by which (x) such
Holder’s total purchase price (including any brokerage commissions) for the shares of Common Stock so purchased exceeds (y) the product of (1) the aggregate number of shares of Common Stock that such Holder was entitled to receive
from the conversion at issue multiplied by (2) the actual sale price at which the sell order giving rise to such purchase obligation was executed (including any brokerage commissions) and (B) at the option of such Holder, either reissue
(if surrendered) the shares of Series Z Preferred Stock equal to the number of shares of Series Z Preferred Stock submitted for conversion or deliver to such Holder the number of shares of Common Stock that would have been issued if the Corporation
had timely complied with its delivery requirements under Section 6(d)(i). For example, if a Holder purchases shares of Common Stock having a total purchase price of $11,000 to cover a Buy-In with respect
to an attempted conversion of shares of Series Z Preferred Stock with respect to which the actual sale price (including any brokerage commissions) giving rise to such purchase obligation was a total of $10,000 under clause (A) of the
immediately preceding sentence, the Corporation shall be required to pay such Holder $1,000. The Holder shall provide the Corporation written notice, within three (3) Trading Days after the occurrence of a
Buy-In, indicating the amounts payable to such Holder in respect of such Buy-In together with applicable confirmations and other evidence reasonably requested by the
Corporation. Nothing herein shall limit a Holder’s right to pursue any other remedies available to it hereunder, at law or in equity including, without limitation, a decree of specific performance and/or injunctive relief with respect to the
Corporation’s failure to timely deliver certificates representing shares of Common Stock upon conversion of the shares of Series Z Preferred Stock as required pursuant to the terms hereof; provided, however, that the Holder shall not be
entitled to both (i) require the reissuance of the shares of Series Z Preferred Stock submitted for conversion for which such conversion was not timely honored and (ii) receive the number of shares of Common Stock that would have been
issued if the Corporation had timely complied with its delivery requirements under Section 6(d)(i). 
 iv. Reservation of Shares
Issuable Upon Conversion. The Corporation covenants that it will at all times reserve and keep available out of its authorized and unissued shares of Common Stock for the sole purpose of issuance upon conversion of the Series Z Preferred Stock,
free from preemptive rights or any other actual contingent purchase rights of Persons other than the Holders of the Series Z Preferred Stock, not less than such aggregate number of shares of the Common Stock as shall be issuable (taking into account
the adjustments of Section 7) upon the conversion of all outstanding shares of Series Z Preferred Stock. The Corporation covenants that all shares of Common Stock that shall be so issuable shall, upon issue, be duly authorized, validly issued,
fully paid and non-assessable. 
 v. Fractional Shares. No fractional shares or scrip representing fractional shares of Common Stock
shall be issued upon the conversion of the Series Z Preferred Stock. As to any fraction of a share which a Holder would otherwise be entitled to receive upon such conversion, the Corporation shall pay a cash adjustment in respect of such fractional
share of Common Stock in an amount equal to such fraction multiplied by the Closing Sale Price. 
 vi. Transfer Taxes. The issuance of
certificates for shares of the Common Stock upon conversion of the Series Z Preferred Stock shall be made without charge to any Holder for any documentary stamp or similar taxes that may be payable in respect of the issue or delivery of such
certificates, provided that the Corporation shall not be required to pay any tax that may be payable in respect of any transfer involved in the issuance and delivery of any such certificate upon conversion in a name other than that of the registered
Holder(s) of such shares of Series Z Preferred Stock and the Corporation shall not be required to issue or deliver such certificates unless or until the Person or Persons requesting the issuance thereof shall have paid to the Corporation the amount
of such tax or shall have established to the satisfaction of the Corporation that such tax has been paid. 

 (e) Status as Stockholder. Upon each Conversion Date, (i) the shares of Series Z
Preferred Stock being converted shall be deemed converted into shares of Common Stock and (ii) the Holder’s rights as a holder of such converted shares of Series Z Preferred Stock shall cease and terminate, excepting only the right to
receive certificates for such shares of Common Stock and to any remedies provided herein or otherwise available at law or in equity to such Holder because of a failure by the Corporation to comply with the terms of this Certificate of Designation.
In all cases, the Holder shall retain all of its rights and remedies for the Corporation’s failure to convert Series Z Preferred Stock. 

Section 7. Certain Adjustments. 

(a) Stock Dividends and Stock Splits. If the Corporation, at any time while this Series Z Preferred Stock is outstanding: (A) pays
a stock dividend or otherwise makes a distribution or distributions payable in shares of Common Stock (which, for avoidance of doubt, shall not include any shares of Common Stock issued by the Corporation upon conversion of this Series Z Preferred
Stock) with respect to the then outstanding shares of Common Stock; (B) subdivides outstanding shares of Common Stock into a larger number of shares; or (C) combines (including by way of a reverse stock split) outstanding shares of Common
Stock into a smaller number of shares, then the Conversion Ratio shall be multiplied by a fraction of which the numerator shall be the number of shares of Common Stock (excluding any treasury shares of the Corporation) outstanding immediately after
such event and of which the denominator shall be the number of shares of Common Stock outstanding immediately after before event (excluding any treasury shares of the Corporation). Any adjustment made pursuant to this Section 7(a) shall become
effective immediately after the record date for the determination of stockholders entitled to receive such dividend or distribution and shall become effective immediately after the effective date in the case of a subdivision or combination. 

(b) Fundamental Transaction. If, at any time while this Series Z Preferred Stock is outstanding, (A) the Corporation effects any
merger or consolidation of the Corporation with or into another Person or any stock sale to, or other business combination (including, without limitation, a reorganization, recapitalization, spin-off, share
exchange or scheme of arrangement) with or into another Person (other than such a transaction in which the Corporation is the surviving or continuing entity and its Common Stock is not exchanged for or converted into other securities, cash or
property), (B) the Corporation effects any sale of all or substantially all of its assets in one transaction or a series of related transactions, (C) any tender offer or exchange offer (whether by the Corporation or another Person) is
completed pursuant to which more than 50% of the Common Stock not held by the Corporation or such Person is exchanged for or converted into other securities, cash or property, or (D) the Corporation effects any reclassification of the Common
Stock or any compulsory share exchange pursuant (other than as a result of a dividend, subdivision or combination covered by Section 7(a) above) to which the Common Stock is effectively converted into or exchanged for other securities, cash or
property (in any such case, a “Fundamental Transaction”), then, upon any subsequent conversion of this Series Z Preferred Stock the Holders shall have the right to receive, in lieu of the right to receive Conversion Shares,
for each Conversion Share that would have been issuable upon such conversion immediately prior to the occurrence of such Fundamental Transaction, the same kind and amount of securities, cash or property as it would have been entitled to receive upon
the occurrence of such Fundamental Transaction if it had been, immediately prior to such Fundamental Transaction, the holder of one share of Common Stock (the “Alternate Consideration”). For purposes of any such subsequent
conversion, the determination of the Conversion Ratio shall be appropriately adjusted to apply to such Alternate Consideration based on the amount of Alternate Consideration issuable in respect of one share of Common Stock in such Fundamental
Transaction, and the Corporation shall adjust the Conversion Ratio in a reasonable manner reflecting the relative value of any different components of the Alternate Consideration. If holders of Common Stock are given any choice as to the securities,
cash or property to be received in a Fundamental Transaction, then the Holders shall be given the same choice as to the Alternate Consideration it receives upon any conversion of this Series Z Preferred Stock following such Fundamental Transaction.
To the extent necessary to effectuate the foregoing provisions, any successor to the Corporation or surviving entity in such Fundamental Transaction shall file a new Certificate of Designation with the same terms and conditions and issue to the
Holders new preferred stock consistent with the foregoing provisions and evidencing the Holders’ right to convert such preferred stock into Alternate Consideration. 

 
The terms of any agreement to which the Corporation is a party and pursuant to which a Fundamental Transaction is effected shall include terms requiring any such successor or surviving entity to
comply with the provisions of this Section 7(b) and insuring that this Series Z Preferred Stock (or any such replacement security) will be similarly adjusted upon any subsequent transaction analogous to a Fundamental Transaction. The
Corporation shall cause to be delivered to each Holder, at its last address as it shall appear upon the stock books of the Corporation, written notice of any Fundamental Transaction at least 20 calendar days prior to the date on which such
Fundamental Transaction is expected to become effective or close. 
 (c) Calculations. All calculations under this Section 7
shall be made to the nearest cent or the nearest 1/100th of a share, as the case may be. For purposes of this Section 7, the number of shares of Common Stock deemed to be issued and outstanding as of a given date shall be the sum of the number
of shares of Common Stock (excluding any treasury shares of the Corporation) issued and outstanding. 
 (d) Notice to the Holders.

 i. Adjustment to Conversion Ratio. Whenever the Conversion Ratio is adjusted pursuant to any provision of this Section 7, the
Corporation shall promptly deliver to each Holder a notice setting forth the Conversion Ratio after such adjustment and setting forth a brief statement of the facts requiring such adjustment. 

ii. Other Notices. If: (A) the Corporation shall declare a dividend (or any other distribution in whatever form) on the Common
Stock, (B) the Corporation shall declare a special nonrecurring cash dividend on or a redemption of the Common Stock, (C) the Corporation shall authorize the granting to all holders of the Common Stock of rights or warrants to subscribe
for or purchase any shares of capital stock of any class or of any rights, (D) the approval of any stockholders of the Corporation shall be required in connection with any reclassification of the Common Stock, any consolidation or merger to
which the Corporation is a party, any sale or transfer of all or substantially all of the assets of the Corporation, or any compulsory share exchange whereby the Common Stock is converted into other securities, cash or property, or (E) the
Corporation shall authorize the voluntary or involuntary dissolution, liquidation or winding up of the affairs of the Corporation, then, in each case, the Corporation shall cause to be filed at each office or agency maintained for the purpose of
conversion of this Series Z Preferred Stock, and shall cause to be delivered to each Holder at its last address as it shall appear upon the stock books of the Corporation, at least 20 calendar days prior to the applicable record or effective date
hereinafter specified, a notice stating (x) the date on which a record is to be taken for the purpose of such dividend, distribution, redemption, rights or warrants, or if a record is not to be taken, the date as of which the holders of the
Common Stock of record to be entitled to such dividend, distributions, redemption, rights or warrants are to be determined or (y) the date on which such reclassification, consolidation, merger, sale, transfer or share exchange is expected to
become effective or close, and the date as of which it is expected that holders of the Common Stock of record shall be entitled to exchange their shares of the Common Stock for securities, cash or other property deliverable upon such
reclassification, consolidation, merger, sale, transfer or share exchange, provided that the failure to deliver such notice or any defect therein or in the delivery thereof shall not affect the validity of the corporate action required to be
specified in such notice. 
 Section 8. Miscellaneous. 

(a) Notices. Any and all notices or other communications or deliveries to be provided by the Holders hereunder including, without
limitation, any Notice of Conversion, shall be in writing and delivered personally, by facsimile, or sent by a nationally recognized overnight courier service, addressed to the Corporation, at 2200 Powell Street, Suite 310, Emeryville, CA 94608,
email: LegalDept@xoma.com, or such other email address as the Corporation may specify for such purposes by notice to the Holders delivered in accordance with this Section. Any and all notices or other communications or deliveries to be provided by
the Corporation hereunder shall be in writing and delivered personally, by email, at the email address of such Holder appearing on the books of the Corporation, or if no such email address appears on the books of the Corporation, sent by a
nationally recognized overnight courier service addressed to each Holder, at the principal place of business of such Holder. Any notice or other communication or deliveries hereunder shall be deemed given and effective on the earliest of
(i) the date of transmission, if such notice or communication is delivered via email with confirmation at the email address specified in this Section prior to 5:30 p.m. (Pacific Time) on any date, (ii) the date immediately following the
date of transmission, if such notice or communication is delivered via email at the email address specified in this Section between 5:30 p.m. and 11:59 p.m. (Pacific Time) on any date, (iii) the second Business Day following the date of
mailing, if sent by nationally recognized overnight courier service, or (iv) upon actual receipt by the party to whom such notice is required to be given. 

 (b) Lost or Mutilated Series Z Preferred Stock Certificate. If a Holder’s Series
Z Preferred Stock certificate shall be mutilated, lost, stolen or destroyed, the Corporation shall execute and deliver, in exchange and substitution for and upon cancellation of a mutilated certificate, or in lieu of or in substitution for a lost,
stolen or destroyed certificate, a new certificate for the shares of Series Z Preferred Stock so mutilated, lost, stolen or destroyed, but only upon receipt of evidence of such loss, theft or destruction of such certificate, and of the ownership
thereof, reasonably satisfactory to the Corporation and, in each case, customary and reasonable indemnity, if requested. Applicants for a new certificate under such circumstances shall also comply with such other reasonable regulations and
procedures and pay such other reasonable third-party costs as the Corporation may prescribe. 
 (c) Waiver. Any waiver by the
Corporation or a Holder of a breach of any provision of this Certificate of Designation shall not operate as or be construed to be a waiver of any other breach of such provision or of any breach of any other provision of this Certificate of
Designation or a waiver by any other Holders. The failure of the Corporation or a Holder to insist upon strict adherence to any term of this Certificate of Designation on one or more occasions shall not be considered a waiver or deprive that party
(or any other Holder) of the right thereafter to insist upon strict adherence to that term or any other term of this Certificate of Designation. Any waiver by the Corporation or a Holder must be in writing. Notwithstanding any provision in this
Certificate of Designation to the contrary, any provision contained herein and any right of the Holders of Series Z Preferred Stock granted hereunder may be waived as to all shares of Series Z Preferred Stock (and the Holders thereof) upon the
written consent of the Holders of not less than a majority of the shares of Series Z Preferred Stock then outstanding, unless a higher percentage is required by the DGCL, in which case the written consent of the Holders of not less than such higher
percentage shall be required. 
 (d) Severability. If any provision of this Certificate of Designation is invalid, illegal or
unenforceable, the balance of this Certificate of Designation shall remain in effect, and if any provision is inapplicable to any Person or circumstance, it shall nevertheless remain applicable to all other Persons and circumstances. If it shall be
found that any interest or other amount deemed interest due hereunder violates the applicable law governing usury, the applicable rate of interest due hereunder shall automatically be lowered to equal the maximum rate of interest permitted under
applicable law. 
 (e) Next Business Day. Whenever any payment or other obligation hereunder shall be due on a day other than a
Business Day, such payment shall be made on the next succeeding Business Day. 
 (f) Headings. The headings contained herein are for
convenience only, do not constitute a part of this Certificate of Designation and shall not be deemed to limit or affect any of the provisions hereof. 

(g) Status of Converted Series Z Preferred Stock. If any shares of Series Z Preferred Stock shall be converted or reacquired by the
Corporation, such shares shall resume the status of authorized but unissued shares of preferred stock and shall no longer be designated as Series Z Preferred Stock. 

******************** 

 IN WITNESS WHEREOF, the undersigned has executed this Certificate of Designation this
_____th day of December    , 2019. 
  

	
	  
 Chief Executive
Officer

 ANNEX A 

NOTICE OF CONVERSION 
 (TO BE
EXECUTED BY THE REGISTERED HOLDER IN ORDER TO CONVERT SHARES OF SERIES Z 
 PREFERRED STOCK) 

The undersigned Holder hereby irrevocably elects to convert the number of shares of Series Z Preferred Stock indicated below, [represented by stock
certificate No(s).                  ] [represented in book-entry form], into shares of common stock, par value $0.0075 per share (the “Common
Stock”), of XOMA Corporation, a Delaware corporation (the “Corporation”), as of the date written below. If securities are to be issued in the name of a person other than the undersigned, the undersigned will pay
all transfer taxes payable with respect thereto. Capitalized terms utilized but not defined herein shall have the meaning ascribed to such terms in that certain Certificate of Designation of Preferences, Rights and Limitations of Series Z
Convertible Preferred Stock (the “Certificate of Designation”) filed by the Corporation with the Secretary of State of the State of Delaware on __________, 2019. 

As of the date hereof, the number of shares of Common Stock beneficially owned by the undersigned Holder (together with such Holder’s Affiliates, and any
other Person whose beneficial ownership of Common Stock would be aggregated with the Holder’s for purposes of Section 13(d) or Section 16 of the Exchange Act and the applicable regulations of the Commission, including any
“group” of which the Holder is a member (the foregoing, “Attribution Parties”)), including the number of shares of Common Stock issuable upon conversion of the Series Z Preferred Stock subject to this Notice of
Conversion, but excluding the number of shares of Common Stock which are issuable upon (A) conversion of the remaining, unconverted Series Z Preferred Stock beneficially owned by such Holder or any of its Attribution Parties, and
(B) exercise or conversion of the unexercised or unconverted portion of any other securities of the Corporation (including any warrants) beneficially owned by such Holder or any of its Attribution Parties that are subject to a limitation on
conversion or exercise similar to the limitation contained in Section 6(c) of the Certificate of Designation, is     %. For purposes hereof, beneficial ownership shall be calculated in accordance with Section 13(d) of
the Exchange Act and the applicable regulations of the Commission. In addition, for purposes hereof, “group” has the meaning set forth in Section 13(d) of the Exchange Act and the applicable regulations of the Commission. 

Conversion calculations: 
  

	
	Date to Effect Conversion:
                                         
                                         
                                         
                         
	Number of shares of Series Z Preferred Stock owned prior to
Conversion:                                       
                                   
	Number of shares of Series Z Preferred Stock to be Converted:
                                         
                                         
         
	Number of shares of Common Stock to be
Issued:                                        
                                         
                                
	
	Address for delivery of physical
certificates:                                       
                                         
                                         
 

  
  

or 
 for DWAC Delivery: 

DWAC Instructions: 

Broker no:                     
                                         
                                         
                                         
                         

Account no:                    
                                         
                                         
                                         
                        
  

			
	 HOLDER

		
	 By:
	 	  

		 	 Name:

		 	 Title:

		 	 Date:ex_165565.htm

Exhibit 10.1

 

SEVENTH AMENDMENT

TO THE 

BIOSIG TECHNOLOGIES, INC. 2012 EQUITY INCENTIVE PLAN

 

This SEVENTH AMENDMENT TO THE BIOSIG TECHNOLOGIES, INC. 2012 EQUITY INCENTIVE PLAN (this “Amendment”), effective as of November 18, 2019, is made and entered into by BioSig Technologies, Inc., a Delaware corporation (the “Company”). Terms used in this Amendment with initial capital letters that are not otherwise defined herein shall have the meanings ascribed to such terms in the BioSig Technologies, Inc. 2012 Equity Incentive Plan (the “Plan”).

 

RECITALS

 

WHEREAS, Section 18 of the Plan provides that the Board may amend the Plan at any time; and

 

WHEREAS, the Board desires to amend the Plan, to increase the number of shares of Common Stock that may be delivered pursuant to Awards under the Plan by an additional two million shares (2,000,000).

 

NOW, THEREFORE, in accordance with Section 18 of the Plan, the Company hereby amends the Plan as follows:

 

1.     Section 3(a) of the Plan is hereby amended by deleting said section in its entirety and substituting in lieu thereof the following new Section 3(a):

 

(a)      Stock Subject to the Plan. Subject to the provisions of Section 13 of the Plan, the maximum aggregate number of Shares that may be subject to Awards and sold under the Plan is 9,474,450 Shares, plus (i) any Shares that, as of the date of stockholder approval of this Plan, have been reserved but not issued pursuant to any awards granted under the BioSig Technologies, Inc. 2011 Long-Term Incentive Plan (the “2011 Plan”) and are not subject to any awards granted thereunder, and (ii) any Shares subject to stock options or similar awards granted under the 2011 Plan that expire or otherwise terminate without having been exercised in full and Shares issued pursuant to awards granted under the 2011 Plan that are forfeited to or repurchased by the Company, with the maximum number of Shares to be added to the Plan pursuant to clauses (i) and (ii) equal to 1,500,000 Shares. The Shares may be authorized but unissued, or reacquired Common Stock.

 

2.      Except as expressly amended by this Amendment, the Plan shall continue in full force and effect in accordance with the provisions thereof.

 

[Remainder of Page Intentionally Left Blank;

Signature Page Follows.]

 

 

 

 

 

IN WITNESS WHEREOF, the Company has caused this Amendment to be duly executed as of the date first written above.

 

BIOSIG TECHNOLOGIES, INC.

 

 

 

                              By:          /s/ Kenneth L. Londoner               

                              Name:     Kenneth L. Londoner                    

                              Title:       Chairman and Chief Executive Officer

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