<SEC-DOCUMENT>0001193125-18-320864.txt : 20181107
<SEC-HEADER>0001193125-18-320864.hdr.sgml : 20181107
<ACCEPTANCE-DATETIME>20181107160100
ACCESSION NUMBER:		0001193125-18-320864
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20181106
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Unregistered Sales of Equity Securities
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20181107
DATE AS OF CHANGE:		20181107

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			XOMA Corp
		CENTRAL INDEX KEY:			0000791908
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				522154066
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14710
		FILM NUMBER:		181166179

	BUSINESS ADDRESS:	
		STREET 1:		2200 POWELL STREET
		STREET 2:		SUITE 310
		CITY:			EMERYVILLE
		STATE:			CA
		ZIP:			94608
		BUSINESS PHONE:		510-204-7239

	MAIL ADDRESS:	
		STREET 1:		2200 POWELL STREET
		STREET 2:		SUITE 310
		CITY:			EMERYVILLE
		STATE:			CA
		ZIP:			94608

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	XOMA LTD /DE/
		DATE OF NAME CHANGE:	19990107

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	XOMA CORP /DE/
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>d629524d8k.htm
<DESCRIPTION>FORM 8-K
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<TITLE>Form 8-K</TITLE>
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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>UNITED STATES </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>SECURITIES AND EXCHANGE COMMISSION </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Washington, D.C. 20549 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>FORM <FONT
STYLE="white-space:nowrap">8-K</FONT> </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>CURRENT
REPORT </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Pursuant to Section&nbsp;13 or 15(d) </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>of the Securities Exchange Act of 1934 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Date of Report (Date of earliest event reported) November&nbsp;6, 2018</B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:24pt; font-family:Times New Roman" ALIGN="center"><B>XOMA CORPORATION </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Exact
name of registrant as specified in its charter)</B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" ALIGN="center"><B><FONT STYLE="white-space:nowrap">000-14710</FONT></B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>Delaware</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B><FONT STYLE="white-space:nowrap">52-2154066</FONT></B></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Commission</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>File Number)</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(State or other jurisdiction</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>of incorporation)</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(IRS Employer</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Identification No.)</B></P></TD></TR>
</TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" ALIGN="center"><B>2200 Powell Street, Suite 310, Emeryville, California</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>94608</B></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="top" ALIGN="center"><B>(Address of principal executive offices)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>(Zip Code)</B></TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Registrant&#146;s telephone number, including area code
<FONT STYLE="white-space:nowrap">(510)&nbsp;204-7200</FONT> </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Former name or former address, if changed since last report.) </B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Check the appropriate box below if the Form <FONT STYLE="white-space:nowrap">8-K</FONT> filing is intended to simultaneously satisfy the filing obligation of
the registrant under any of the following provisions (<U>see</U> General Instruction A.2. below): </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">Soliciting material pursuant to Rule <FONT STYLE="white-space:nowrap">14a-12</FONT> under the Exchange Act (17
CFR <FONT STYLE="white-space:nowrap">240.14a-12)</FONT> </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><FONT STYLE="white-space:nowrap">Pre-commencement</FONT> communications pursuant to Rule <FONT
STYLE="white-space:nowrap">14d-2(b)</FONT> under the Exchange Act (17 CFR <FONT STYLE="white-space:nowrap">240.14d-2(b))</FONT> </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><FONT STYLE="white-space:nowrap">Pre-commencement</FONT> communications pursuant to Rule <FONT
STYLE="white-space:nowrap">13e-4(c)</FONT> under the Exchange Act (17 CFR <FONT STYLE="white-space:nowrap">240.13e-4(c))</FONT> </P></TD></TR></TABLE>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (&#167;
230.405 of this chapter) or Rule <FONT STYLE="white-space:nowrap">12b-2</FONT> of the Securities Exchange Act of 1934 (&#167; <FONT STYLE="white-space:nowrap">240.12b-2</FONT> of this chapter). </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Emerging growth company&nbsp;&nbsp;&#9744; </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">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&nbsp;13(a) of the Exchange
Act.&nbsp;&nbsp;&#9744; </P> <P STYLE="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;1.01 Entry into a Material Definitive Agreement </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">On November&nbsp;6, 2018, XOMA Corporation (&#147;XOMA&#148; or the &#147;Company&#148;) entered into an Investment Agreement with certain
affiliates of BVF Partners L.P. (&#147;BVF&#148;), an existing stockholder of the Company, (the &#147;Investment Agreement&#148;). Pursuant to the Investment Agreement, BVF agreed to purchase shares of the Company&#146;s Series Y Preferred Stock,
$0.05 par value per share, having an aggregate value equal to the value of all shares (if any) offered but not purchased pursuant to the exercise of rights in the Company&#146;s rights offering, including any exercise of rights by BVF (the
&#147;Rights Offering&#148;), up to $20,000,000 (the &#147;Backstop Commitment&#148;). The Investment Agreement contains customary representations, warranties and covenants by the parties.</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Each share of Series Y Preferred Stock will have a stated value of $13,000 per share and will be convertible into 1,000 shares of registered
common stock based on a conversion price of $13.00 per share of common stock. Each share will be convertible at the option of the holder at any time, provided that the holder will be prohibited from converting into common stock if, as a result of
such conversion, the holder, together with its affiliates, would beneficially own a number of shares above a conversion blocker, which is initially set at 19.99% of the total common stock then issued and outstanding immediately following the
conversion of such shares. In the event of the Company&#146;s liquidation, dissolution or winding up, holders of Series Y Preferred Stock will participate pari passu with any distribution of proceeds to holders of common stock. Holders of Series Y
Preferred Stock are entitled to receive dividends on shares of Series Y Preferred Stock equal (on an as if converted to common stock basis) to and in the same form as dividends actually paid on the Company&#146;s common stock or other junior
securities. Shares of Series Y Preferred Stock will generally have no voting rights, except as required by law and except that the consent of the holders of the outstanding Series Y Preferred Stock will be required to amend the terms of the Series Y
Preferred Stock. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">One of the Company&#146;s directors, Matthew Perry, is President of BVF. Mr.&nbsp;Perry recused himself from the
deliberations of the Board regarding its approval of the Investment Agreement and the purchase of the Backstop Commitment. In addition, the Audit Committee of the Board has approved the Investment Agreement and the Backstop Commitment. The Company
will not pay a fee to BVF in connection with the Backstop Commitment. The Company has agreed to reimburse up to $75,000 of BVF&#146;s expenses in connection with the Investment Agreement and the Rights Offering. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The above description of the Investment Agreement does not purport to be complete and is qualified in its entirety by reference to the
Investment Agreement filed as Exhibit 10.1 to this Current Report on <FONT STYLE="white-space:nowrap">Form&nbsp;8-K&nbsp;which</FONT> is incorporated herein by reference. A summary of the rights, preferences and privileges of the Series Y Preferred
Stock described above does not purport to be complete and is qualified in its entirety by reference to a Form of the Certificate of Designation of Preferences, Rights and Limitations of Series Y Convertible Preferred Stock, which is included as
Exhibit A to the Investment Agreement. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;3.02 Unregistered Sales of Equity Securities </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The information contained in Item 1.01, above, is hereby incorporated by reference. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;8.01 Other Events </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">On
November&nbsp;7, 2018, the Company issued a press release announcing the record date and the commencement and expiration dates of the Rights Offering. The Rights Offering may be amended, canceled or extended. A copy of the press release is filed as
Exhibit 99.1 hereto. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;9.01 Financial Statements and Exhibits </B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; " ALIGN="center"><B>Number</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; "><B>Exhibit Description</B></P></TD></TR>


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<TD HEIGHT="8" COLSPAN="2"></TD></TR>
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<TD VALIGN="top" NOWRAP>10.1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="d629524dex101.htm">Investment Agreement, dated November&nbsp;6, 2018 </A></TD></TR>
<TR STYLE="font-size:1pt">
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<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>99.1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="d629524dex991.htm">Press release entitled &#147;XOMA Announces Proposed Rights Offering&#148; dated November&nbsp;7, 2018 </A></TD></TR>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>SIGNATURES </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by
the undersigned hereunto duly authorized. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">XOMA CORPORATION</P></TD></TR>
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<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
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<TD VALIGN="top">Date: November&nbsp;7, 2018</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">/s/ Thomas Burns</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Thomas Burns</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Senior Vice President, Finance
and Chief Financial Officer</P></TD></TR>
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<TYPE>EX-10.1
<SEQUENCE>2
<FILENAME>d629524dex101.htm
<DESCRIPTION>EX-10.1
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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit 10.1 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>INVESTMENT AGREEMENT </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This INVESTMENT AGREEMENT (this &#147;<U>Agreement</U>&#148;), dated as of November&nbsp;6, 2018, is made by and between XOMA Corporation, a
Delaware corporation (the &#147;<U>Company</U>&#148;), and each purchaser identified on the signature pages hereto (each, including its permitted successors and assigns, an &#147;<U>Investor</U>&#148; and collectively, the
&#147;<U>Investors</U>&#148;). </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, the Company proposes to conduct a rights offering by distributing, at no charge, <FONT
STYLE="white-space:nowrap">non-transferable</FONT> rights (the &#147;<U>Rights</U>&#148;) to purchase shares of the Company&#146;s Common Stock, par value $0.0075 per share (the &#147;<U>Common Stock</U>&#148;) and shares of the Company&#146;s
Series Y 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 <U>Exhibit A</U> (the &#147;<U>Preferred Stock</U>&#148;), to each
holder of record of shares of the Company&#146;s Common Stock and Series X Convertible Preferred Stock as of the close of business on November&nbsp;16, 2018 (the &#147;<U>Record Date</U>&#148;); </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, the Rights will be exercisable for a number of shares (the &#147;<U>Offered Shares</U>&#148;) resulting in gross proceeds to the
Company of approximately twenty million ($20,000,000); </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">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 &#147;<U>Rights Offering</U>&#148;): (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 $13.00 per whole share of Common Stock 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&#146;s Common Stock then issued and outstanding immediately after the issuance of such shares, a number of shares of Preferred Stock (at a subscription price of $13,000 per whole share of Preferred Stock (the
&#147;<U>Preferred Exercise Price</U>&#148;)) equal, on an <FONT STYLE="white-space:nowrap">as-converted</FONT> basis, to the excess portion of the Common Stock that cannot be purchased due to the foregoing beneficial ownership limitation; and
(b)&nbsp;for each share of Series X Convertible Preferred Stock held on the Record Date, the right to purchase a fraction of a share of Preferred Stock at a subscription price equal to the Preferred Exercise Price;<U> </U> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, in order to facilitate the Rights Offering, the Investors have agreed to purchase, at the Preferred Exercise Price, upon expiration
of the Rights Offering, shares of Preferred Stock 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 Investor) in the Rights
Offering (the &#147;<U>Backstop Shares</U>&#148;), upon the terms and subject to the conditions set forth herein (the &#147;<U>Backstop Commitment</U>&#148;); and </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">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. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">NOW, THEREFORE, in consideration of the mutual promises, agreements, representations, warranties and
covenants contained herein, each of the parties hereto hereby agrees as follows: </P>
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<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><U>Conduct of Rights Offering</U> </P></TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;&nbsp;&nbsp;As soon as practicable after the date 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&#146;s purchase commitment hereunder. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;The Company shall use commercially reasonable efforts to: (i)&nbsp;initiate the Rights Offering, on the terms set
forth above, within five business days after the Record Date, and (ii)&nbsp;close the Rights Offering by no later than 5:00 p.m. (Pacific Time) on December&nbsp;31, 2018. </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="5%" VALIGN="top" ALIGN="left">2.</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><U>Purchase and Sale of Securities</U>. </P></TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;&nbsp;&nbsp;As soon as practicable, and in any event within three business days after the expiration of the offering period of
the Rights Offering (&#147;<U>Expiration Time</U>&#148;), the Company will give the Investors notice of: (i)&nbsp;the number of Offered Shares purchased by holders of Rights pursuant to validly exercised Rights in the Rights Offering, and
(ii)&nbsp;the number of Backstop Shares (if any) to be purchased hereunder and the aggregate Preferred Exercise Price therefor (a &#147;<U>Purchase Notice</U>&#148;). If there are no Backstop Shares to be purchased hereunder, the Company shall
provide the Investor with notice of this fact (a &#147;<U>Satisfaction Notice</U>&#148;). The date of transmission of a Purchase Notice or a Satisfaction Notice is referred to herein as the &#147;<U>Determination Date.</U>&#148; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;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 Investor, at the Preferred Exercise Price, all of the Backstop Shares (if any), calculated in accordance with Section&nbsp;2(a). </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c)&nbsp;&nbsp;&nbsp;&nbsp;The closing of the Rights Offering and the purchase of Backstop Shares by the Investor hereunder (the
&#147;<U>Closing</U>&#148;) will occur as soon as practicable following the Expiration Time and after giving effect to the determinations contemplated by Section&nbsp;2(a) above (the &#147;<U>Closing Date</U>&#148;). The Company and, to the extent
applicable, the Investor, shall use commercially reasonable efforts to cause the Closing Date to occur within five business days following the Expiration Time. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">3.&nbsp;&nbsp;&nbsp;&nbsp;<U>Representations and Warranties of the Company</U>. 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: </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;&nbsp;&nbsp;<U>Organization and Qualification</U>. 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 </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">2 </P>

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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, &#147;<U>Material Adverse Effect</U>&#148; means any act, development, event or occurrence which could be reasonably expected to have a material adverse effect on: (a)&nbsp;the
enforceability of this Agreement, (b)&nbsp;the results of operations, business, properties, or financial condition of the Company and its Subsidiaries, taken as a whole, or (c)&nbsp;the Company&#146;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)&nbsp;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)&nbsp;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)&nbsp;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)&nbsp;any action taken by the Investor, its affiliates or its or their permitted successors and assigns with respect to the transactions contemplated by this Agreement, (v)&nbsp;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)&nbsp;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 &#147;<U>Subsidiary</U>&#148; of any person means, with respect to such person, any corporation, partnership or other legal entity of which such person (either alone
or through or together with any other subsidiary), owns, directly or indirectly, more than 50% of the stock or other equity interests, has the power to elect a majority of the board of directors or similar governing body, or has the power to direct
the business and policies. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;<U>Corporate Power and Authority</U>. 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 Preferred Shares and the shares of Common Stock issuable
upon conversion thereof (the &#147;<U>Conversion Shares</U>&#148;). 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. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c)&nbsp;&nbsp;&nbsp;&nbsp;<U>Execution and Delivery;
Enforceability</U>. 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)&nbsp;bankruptcy, insolvency, moratorium and other similar laws now or hereafter in effect relating to or affecting creditors&#146; rights
generally, and (ii)&nbsp;general principles of equity (regardless of whether considered in a proceeding at law or in equity). </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d)&nbsp;&nbsp;&nbsp;&nbsp;<U>Authorized and Issued Capital Stock</U>. 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 has been designated as Series X preferred stock and
1,539 shares of which has been designated as Series Y preferred stock. As of the close of business on November&nbsp;5, 2018 (the &#147;<U>Capital Structure Date</U>&#148;), (i) 8,387,596 shares of Common Stock were issued and outstanding, (ii) 5,003
shares of Series X preferred stock were issued and outstanding, and (iii)&nbsp;a total of 1,683,888 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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e)&nbsp;&nbsp;&nbsp;&nbsp;<U>Issuance</U>. The Preferred Shares to be issued and sold by the Company hereunder, when such Preferred Shares
are issued and delivered against payment therefor in accordance with the terms hereof, will be duly and validly authorized, fully paid and <FONT STYLE="white-space:nowrap">non-assessable,</FONT> 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 <FONT STYLE="white-space:nowrap">non-assessable,</FONT> free and clear of all taxes, liens, preemptive rights, rights of first refusal, subscription and similar rights. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(f)&nbsp;&nbsp;&nbsp;&nbsp;<U>No Conflict</U>. 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)&nbsp;will not
result in any violation of the provisions of the certificate of incorporation or <FONT STYLE="white-space:nowrap">by-laws</FONT> or comparable organizational documents of the Company or any of its Subsidiaries, and (iii)&nbsp;will 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 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 (&#147;poison pill&#148;) or similar agreement or arrangement to which the Company is a party. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(g)&nbsp;&nbsp;&nbsp;&nbsp;<U>Consents and Approvals</U>. 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 Preferred Shares to
the Investor hereunder and the issuance of the Conversion Shares upon the conversion of the Preferred Shares, except: (i)&nbsp;the registration under the Securities Act of 1933, as amended (the &#147;<U>Securities Act</U>&#148;), of the issuance of
the Rights and the Offered Shares pursuant to the exercise of Rights, (ii)&nbsp;the filing of a Certificate of Designation of Preferences, Rights and Limitations of Series Y Convertible Preferred Stock in the form attached hereto as Exhibit A (the
&#147;<U>Certificate of Designation</U>&#148;) with the Secretary of State of Delaware, which will be filed prior to the Closing Date, and (iii)&nbsp;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 Preferred Shares by the Investor, including Form D notice with the SEC, if required. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(h)&nbsp;&nbsp;&nbsp;&nbsp;<U>SEC Filings</U>. Since January&nbsp;1, 2018, the Company has timely filed all current and periodic reports
required to be filed with the SEC (the &#147;<U>SEC Reports</U>&#148;) pursuant the Securities Exchange Act of 1934 (the &#147;<U>Exchange Act</U>&#148;). 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. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i)&nbsp;&nbsp;&nbsp;&nbsp;<U>Absence of Changes</U>. Except as disclosed in the SEC Reports or as otherwise
contemplated by this Agreement, since June&nbsp;30, 2018: (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)&nbsp;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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">4.&nbsp;&nbsp;&nbsp;&nbsp;<U>Representations and Warranties of the Investor</U>. 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: </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;&nbsp;&nbsp;<U>Authority</U>. The 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 Preferred Shares. 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 Preferred Shares. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;<U>Execution and Delivery; Enforceability</U>. This Agreement has
been, or prior to its execution and delivery at the Closing will be, duly and validly executed and delivered by the Investor, and each such document constitutes, or will constitute, the valid and binding obligation of the Investor, enforceable
against the Investor in accordance with its terms subject to (i)&nbsp;bankruptcy, insolvency, moratorium and other similar laws now or hereafter in effect relating to or affecting creditors&#146; rights generally, and (ii)&nbsp;general principles of
equity (regardless of whether considered in a proceeding at law or in equity). </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c)&nbsp;&nbsp;&nbsp;&nbsp;<U>No Registration</U>. The
Investor understands that the Preferred Shares have not 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&#146;s representations as expressed herein or otherwise made pursuant hereto. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d)&nbsp;&nbsp;&nbsp;&nbsp;<U>Investment Intent</U>. The Investor is acquiring the 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 the Investor has no present intention of selling, granting any participation in, or
otherwise distributing the same, except in compliance with applicable securities laws. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e)&nbsp;&nbsp;&nbsp;&nbsp;<U>Securities Laws
Compliance</U>. The Preferred Shares will not be offered for sale, sold or otherwise transferred by the 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. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(f)&nbsp;&nbsp;&nbsp;&nbsp;<U>Sophistication</U>. The 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 Preferred Shares being acquired hereunder. The Investor is a &#147;qualified institutional buyer&#148; within the meaning of
Rule 144A under the Securities Act or an &#147;accredited investor&#148; within the meaning of Rule 501 of Regulation D under the Securities Act. The 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, the 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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(g)&nbsp;&nbsp;&nbsp;&nbsp;<U>Legended Securities</U>. The 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 Preferred Shares shall be represented by a certificate bearing the following legend (the
&#147;<U>Securities Act Legend</U>&#148;): </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:8%; font-size:10pt; font-family:Times New Roman">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 &#147;SECURITIES ACT&#148;), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD (I)&nbsp;EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER
THE SECURITIES ACT, (II)&nbsp;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)&nbsp;UNLESS SOLD PURSUANT TO RULE 144 OR RULE 144A UNDER THE SECURITIES ACT. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The foregoing Securities Act Legend shall be promptly removed from Preferred Shares and the Company shall issue, or cause to be issued, to the Investor a
certificate for such Preferred Shares without such legend or any other legend, or, if so requested by the Investor, by electronic delivery at the applicable balance account at the Depository Trust Company (&#147;<U>DTC</U>&#148;), if one of the
following conditions is met: (a)&nbsp;such Preferred Shares are eligible for resale pursuant to Rule 144 of the Securities Act without regard to any volume limitations; (b)&nbsp;in connection with a sale, assignment or other transfer of such
Preferred Shares, the 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 Preferred Shares may be made without
registration under the applicable requirements of the Securities Act and that the legend can be removed from the Preferred Shares; or (c)&nbsp;the Preferred Shares are registered and sold pursuant to an effective registration statement for resale
under the Securities Act. </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="5%" VALIGN="top" ALIGN="left">5.</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><U>Conditions to the Obligations of the Parties</U>. </P></TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;&nbsp;&nbsp;The obligations of the 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 the Investor in its sole discretion): </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(i)&nbsp;&nbsp;&nbsp;&nbsp;<U>Rights Offering</U>. The Rights Offering shall have been completed by the Company before December&nbsp;31, 2018
on the terms set forth herein. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(ii)&nbsp;&nbsp;&nbsp;&nbsp;<U>Purchase or Satisfaction Notice</U>. The 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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(iii)&nbsp;&nbsp;&nbsp;&nbsp;<U>Consents</U>. 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 and any applicable approvals required by
the Nasdaq Stock Market. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">7 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(iv)&nbsp;&nbsp;&nbsp;&nbsp;<U>Representations and Warranties</U>. 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 &#147;material&#148; or &#147;Material Adverse
Effect&#148; or similar term, which shall be true and correct in all respects) on the date hereof and as of the Closing Date. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(v)&nbsp;&nbsp;&nbsp;&nbsp;<U>No Material Adverse Effect</U>. Since the date of this Agreement, there shall not have occurred (i)&nbsp;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)&nbsp;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)&nbsp;a material disruption in commercial banking or securities settlement or clearance services in the United States, or (iv)&nbsp;a declaration of a banking moratorium by
either Federal or New York authorities. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;The obligation of the Company to issue and sell the Preferred Shares
are subject to the following conditions (which may be waived in whole or in part by the Company in its sole discretion): </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(i)&nbsp;&nbsp;&nbsp;&nbsp;<U>No Legal Impediment to Issuance</U>. 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 Preferred Shares to the
Investor or the consummation of the transactions contemplated by this Agreement. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(ii)&nbsp;&nbsp;&nbsp;&nbsp;<U>Representations and
Warranties</U>. The representations and warranties of the Investor shall be true and correct in all material respects (except with respect to representations and warranties that are qualified by the term &#147;material&#148; or &#147;Material
Adverse Effect&#148; or similar term, which shall be true and correct in all respects) on the date hereof and as of the Closing Date. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(iii)&nbsp;&nbsp;&nbsp;&nbsp;<U>Rights Offering</U>. The Rights Offering shall have been completed by the Company. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">6.&nbsp;&nbsp;&nbsp;&nbsp;<U>Termination</U>. This Agreement may be terminated by mutual written consent of the Company and the Investor or by the Investor if
the Closing has not been consummated within ten (10)&nbsp;business days from the Expiration Time through no fault of the Investor; provided, however, that no such termination will affect the right of any party to sue for any breach by the other
party (or parties). </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">8 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">7.&nbsp;&nbsp;&nbsp;&nbsp;<U>Notices</U>. 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): </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:13%; font-size:10pt; font-family:Times New Roman">If to the Company: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:13%; font-size:10pt; font-family:Times New Roman">XOMA
Corporation </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:13%; font-size:10pt; font-family:Times New Roman">2200 Powell Street, Suite 310 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:13%; font-size:10pt; font-family:Times New Roman">Emeryville, CA 94608 </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:13%; font-size:10pt; font-family:Times New Roman">Attn:
Chief Financial Officer </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:13%; font-size:10pt; font-family:Times New Roman">If to the Investor: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:13%; font-size:10pt; font-family:Times New Roman">c/o BVF Partners, LP </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:13%; font-size:10pt; font-family:Times New Roman">44
Montgomery Street 40<SUP STYLE="font-size:85%; vertical-align:top">th</SUP> Floor </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:13%; font-size:10pt; font-family:Times New Roman">San Francisco, California 94104 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:13%; font-size:10pt; font-family:Times New Roman">Attn: Matthew Perry </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">8.&nbsp;&nbsp;&nbsp;&nbsp;<U>Assignment; Third Party Beneficiaries</U>. 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 the Investor may assign part or all of its rights and obligations hereunder to an
affiliate of the Investor, provided that the assigning party shall remain liable for any <FONT STYLE="white-space:nowrap">non-performance</FONT> of such assignee&#146;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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">9.&nbsp;&nbsp;&nbsp;&nbsp;<U>Prior Negotiations; Entire Agreement</U>. 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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">10.&nbsp;&nbsp;&nbsp;&nbsp;<U>Governing Law</U>. 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 </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">9 </P>

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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&#146; fees and other costs and expenses incurred with the investigation, preparation and prosecution of such action or proceeding. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">11.&nbsp;&nbsp;&nbsp;&nbsp;<U>Fees and Expenses</U>. 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;<U>&nbsp;provided, however</U>,
at the Closing, the Company shall reimburse the Investor for its reasonable and documented legal fees and expenses incurred in connection with this Agreement and the Rights Offering, not to exceed $75,000 in the aggregate. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">12.&nbsp;&nbsp;&nbsp;&nbsp;<U>Certain Defined Terms</U>. For purposes of this Agreement, (a)&nbsp;except where otherwise expressly provided, the term
&#147;affiliate&#148; has the meaning set forth in Rule 405 under the Securities Act; and (b)&nbsp;the term &#147;business day&#148; means any day other than a day on which banks are permitted or required to be closed in New York City. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">13.&nbsp;&nbsp;&nbsp;&nbsp;<U>Counterparts</U>. 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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">14.&nbsp;&nbsp;&nbsp;&nbsp;<U>Waivers and Amendments</U>. 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. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">10 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">15.&nbsp;&nbsp;&nbsp;&nbsp;<U>Waiver of Potential Conflicts of Interest</U>. Each of the Investor and the
Company acknowledge that Gibson, Dunn&nbsp;&amp; Crutcher LLP (&#147;<U>Gibson Dunn</U>&#148;) has represented and currently represents the Company and the Investor 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 Investor and the Company acknowledges that Gibson Dunn is representing only the Investor in this transaction and may not share the Company&#146;s confidential
information; similarly, Gibson Dunn may not share the Investor&#146;s confidential information with the Company. By executing this Agreement, each of the Investor and the Company hereby waive any actual or potential conflict of interest which has or
may arise as a result of Gibson Dunn&#146;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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">16.&nbsp;&nbsp;&nbsp;&nbsp;<U>Headings</U>. The headings in this Agreement are for reference purposes only and will not in any way affect the meaning or
interpretation of this Agreement. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">[Signature Page Follows] </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">11 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">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. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="87%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>XOMA CORPORATION</B></P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">/s/ James Neal</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">James Neal</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">CEO</TD></TR>
</TABLE></DIV> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TD WIDTH="12%"></TD>
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<TD WIDTH="87%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>BIOTECHNOLOGY VALUE FUND, L.P. </B></P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">BVF Partners L.P.,</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">General
Partner</P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">BVF, Inc.</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">General Partner</P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">/s/ Mark Lampert</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Mark Lampert</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">President</TD></TR>
</TABLE></DIV> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TR>
<TD WIDTH="12%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="87%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>BIOTECHNOLOGY VALUE FUND II, L.P.</B></P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">BVF Partners L.P.,</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">General
Partner</P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">BVF, Inc.</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">General Partner</P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">/s/ Mark Lampert</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Mark Lampert</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">President</TD></TR>
</TABLE></DIV> <P STYLE="font-size:12pt; margin-top:0pt; margin-bottom:0pt">&nbsp;</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">12 </P>

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<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>BIOTECHNOLOGY VALUE TRADING FUND OS, L.P.</B></P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">BVF Partners OS, Ltd.,</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">General
Partner</P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">BVF Partners L.P.</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Sole Member</P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">BVF, Inc.</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">General Partner</P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">/s/ Mark Lampert</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Mark Lampert</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">President</TD></TR>
</TABLE></DIV>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">13 </P>

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<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman"><B>MSI BVF SPV, L.L.C.</B></P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">BVF Partners L.P.,</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman"><FONT
STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Attorney-in-fact</FONT></FONT></P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">BVF, Inc.</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">General Partner</P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">/s/ Mark Lampert</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Mark Lampert</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">President</TD></TR>
</TABLE></DIV>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">14 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>EXHIBIT A </B></P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>SERIES Y CERTIFICATE OF DESIGNATION </B></P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">15 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>XOMA CORPORATION </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>CERTIFICATE OF DESIGNATION OF PREFERENCES, </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>RIGHTS AND LIMITATIONS </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>OF </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>SERIES Y CONVERTIBLE
PREFERRED STOCK </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">PURSUANT TO SECTION 151 OF THE </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">DELAWARE GENERAL CORPORATION LAW </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B>XOMA CORPORATION</B>, a Delaware corporation (the &#147;<B><U>Corporation</U></B>&#148;), in accordance with the provisions of
Section&nbsp;103 of the Delaware General Corporation Law (the &#147;<B><U>DGCL</U></B>&#148;) 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&nbsp;6, 2018: </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B>RESOLVED</B>, pursuant to authority expressly set
forth in the Certificate of Incorporation of the Corporation, as amended (the &#147;<B><U>Certificate of Incorporation</U></B>&#148;), the issuance of a series of Preferred Stock designated as the Series Y 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 Y Convertible Preferred Stock is hereby approved
as follows: </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>SERIES Y CONVERTIBLE PREFERRED STOCK </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><U>Section</U><U></U><U>&nbsp;1</U>. <U>Definitions</U>. For the purposes hereof, the following terms shall have the following meanings: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B><U>Affiliate</U></B>&#148; 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. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B><U>Business
Day</U></B>&#148; 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. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B><U>Closing Sale Price</U></B>&#148; 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 Y Preferred Stock and the Corporation), or if the foregoing do not apply, the last trade price of such security in the <FONT STYLE="white-space:nowrap"><FONT
STYLE="white-space:nowrap">over-the-counter</FONT></FONT> 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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B><U>Commission</U></B>&#148; means the Securities and Exchange Commission. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B><U>Common Stock</U></B>&#148; means the Corporation&#146;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. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B><U>Conversion Price</U></B>&#148; shall mean $13.00, as adjusted pursuant to
Section&nbsp;7 hereof. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B><U>Conversion Shares</U></B>&#148; means, collectively, the shares of Common Stock issuable upon
conversion of the shares of Series Y Preferred Stock in accordance with the terms hereof. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B><U>Daily Failure Amount</U></B>&#148;
means the product of (x)&nbsp;.005 multiplied by (y)&nbsp;the Closing Sale Price of the Common Stock on the applicable Share Delivery Date. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B><U>Exchange Act</U></B>&#148; means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated
thereunder. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B><U>Holder</U></B>&#148; means any holder of Series Y Preferred Stock. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B><U>Person</U></B>&#148; 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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B><U>Securities Act</U></B>&#148; means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B><U>Stated Value</U></B>&#148; shall mean $13,000 per share. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B><U>Trading Day</U></B>&#148; 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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><U>Section</U><U></U><U>&nbsp;2</U>. <U>Designation, Amount and Par Value; Assignment</U>. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) The series of preferred stock designated by this Certificate of Designation shall be designated as the Corporation&#146;s Series Y
Convertible Preferred Stock (the &#147;<B><U>Series Y Preferred Stock</U></B>&#148;) and the number of shares so designated shall be 1, 539. Each share of Series Y Preferred Stock shall have a par value of $0.05 per share. The Series Y 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 Y Preferred Stock are issued in book-entry form, references herein to &#147;certificates&#148; shall instead refer to
the book-entry notation relating to such shares. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) The Corporation shall register shares of the Series Y Preferred Stock, upon records
to be maintained by the Corporation for that purpose (the &#147;<B><U>Series Y Preferred Stock Register</U></B>&#148;), in the name of the Holders thereof from time to time. The Corporation may deem and treat the registered Holder of shares of
Series Y 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 Y Preferred Stock in the Series Y 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 Y 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. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman"><U>Section</U><U></U><U>&nbsp;3</U>. <U>Dividends</U>. Holders shall not be entitled to receive any dividends in respect of the
Series Y Preferred Stock, except to the extent that dividends are paid on the Corporation&#146;s Common Stock, in which case the Holders of the Series Y Preferred Stock shall be entitled to participate in such dividends, on an <FONT
STYLE="white-space:nowrap">as-converted</FONT> basis (without regard to the Beneficial Ownership Limitation). </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><U>Section</U><U></U><U>&nbsp;4</U>. <U>Voting Rights Amendments</U>. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) Except as otherwise provided herein or as otherwise required by the DGCL, the Series Y
Preferred Stock shall have no voting rights. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) Notwithstanding Section&nbsp;4(a), so long as at least 50% of the authorized shares of
Series Y 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 Y Preferred Stock: (a)&nbsp;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 Y 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)&nbsp;issue further shares of Series Y Preferred Stock or increase or decrease (other than by conversion) the number of authorized shares of
Series Y Preferred Stock, or (c)&nbsp;enter into any agreement with respect to any of the foregoing. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) Any vote required or permitted
under Section&nbsp;4(b) may be taken at a meeting of the Holders of the Series Y 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 Y Preferred Stock. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><U>Section</U><U></U><U>&nbsp;5</U>. <U>Rank; Liquidation</U>. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) The Series Y Preferred Stock shall rank: (i)&nbsp;senior to any class or series of capital stock of the Corporation hereafter created
specifically ranking by its terms junior to any Series Y Preferred Stock (&#147;<B><U>Junior Securities</U></B>&#148;); (ii)&nbsp;on parity with the Common Stock, Series X 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 Y Preferred Stock (the &#147;<B><U>Parity Securities</U></B>&#148;); and (iii)&nbsp;junior to any class or series of capital stock of the Corporation hereafter
created specifically ranking by its terms senior to any Series Y Preferred Stock (&#147;<B><U>Senior Securities</U></B>&#148;), 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 &#147;<B><U>Distributions</U></B>&#148;). </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(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 Y 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 Y Preferred Stock, determined on an <FONT STYLE="white-space:nowrap">as-converted</FONT> 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 Y 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 Y Preferred Stock and holders of Parity Securities. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><U>Section</U><U></U><U>&nbsp;6</U>.
<U>Conversion</U>. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) <U>Conversions at Option of Holder</U>. Each share of Series Y 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<B><U> Annex A</U></B> (a &#147;<B><U>Notice of Conversion</U></B>&#148;), duly completed and executed. Other than a conversion following a Fundamental Transaction or following a notice provided for under
Section&nbsp;7(d)(ii) hereof, the Notice of Conversion must specify at least a number of shares of Series Y Preferred Stock to be converted equal to the lesser of (x)&nbsp;100 shares (such number subject to appropriate adjustment following the
occurrence of an event specified in Section&nbsp;7(a) hereof) and (y)&nbsp;the number of shares of Series Y Preferred Stock then held by the Holder. Provided the Corporation&#146;s transfer agent is participating in the Depository Trust Company
(&#147;<B><U>DTC</U></B>&#148;) Fast Automated Securities Transfer program, the Notice of Conversion may specify, at the Holder&#146;s election, whether the applicable Conversion Shares shall be credited to the account of the
</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">18 </P>

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Holder&#146;s prime broker with DTC through its Deposit Withdrawal Agent Commission system (a &#147;<B><U> DWAC Delivery</U></B> &#148;). The &#147;<B><U> Conversion Date</U></B> &#148;, 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 Y Preferred Stock being converted, duly endorsed, and the accompanying Notice of Conversion, are received by the Corporation within two (2)&nbsp;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 Y 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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) <U>Conversion Ratio</U>. The &#147;<B><U>Conversion Ratio</U></B>&#148; for each share of Series Y Preferred Stock shall be equal to the
Stated Value divided by the Conversion Price. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) <U>Beneficial Ownership Limitation</U>. Notwithstanding anything herein to the
contrary, the Corporation shall not effect any conversion of the Series Y Preferred Stock, and a Holder shall not have the right to convert any portion of the Series Y 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&#146;s Affiliates, and any other Person whose beneficial ownership of Common Stock would be aggregated with the Holder&#146;s for purposes of
Section&nbsp;13(d) or Section&nbsp;16 of the Exchange Act and the applicable regulations of the Commission, including any &#147;group&#148; of which the Holder is a member (the foregoing, &#147;<B><U>Attribution Parties</U></B>&#148;)) 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 Y 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)&nbsp;conversion of the remaining, unconverted Series Y Preferred Stock beneficially owned by such Holder or any of its Attribution Parties, and (B)&nbsp;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&nbsp;6(c), beneficial ownership shall be calculated in accordance with Section&nbsp;13(d) of the Exchange Act and the applicable regulations of the Commission. In addition, for purposes hereof,
&#147;group&#148; has the meaning set forth in Section&nbsp;13(d) of the Exchange Act and the applicable regulations of the Commission. For purposes of this Section&nbsp;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)&nbsp;the Corporation&#146;s most recent periodic or annual filing with the Commission, as the case may be, (B)&nbsp;a more recent public
announcement by the Corporation that is filed with the Commission, or (C)&nbsp;a more recent notice by the Corporation or the Corporation&#146;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)&nbsp;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 Y 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 &#147;<B><U>Beneficial Ownership Limitation</U></B>&#148; 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&nbsp;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. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d) <U>Mechanics of Conversion</U> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">i. <U>Delivery of Certificate or Electronic Issuance Upon Conversion</U>. 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 Y Preferred Stock being converted, duly endorsed, and the
accompanying Notice of Conversion (the &#147;<B><U>Share Delivery Date</U></B>&#148;), the Corporation shall either: (a)&nbsp;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 Y Preferred Stock; or (b)&nbsp;in the case of a DWAC Delivery, electronically transfer such Conversion Shares by crediting the account of the Holder&#146;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 Y 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 Y Preferred Stock unsuccessfully tendered for
conversion to the Corporation. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">ii. <U>Obligation Absolute</U>. Subject to Section&nbsp;6(c) hereof and subject to Holder&#146;s right to
rescind a Notice of Conversion pursuant to Section&nbsp;6(d)(i) above, the Corporation&#146;s obligation to issue and deliver the Conversion Shares upon conversion of Series Y 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&nbsp;6(c) hereof and subject to Holder&#146;s right to
rescind a Notice of Conversion pursuant to Section&nbsp;6(d)(i) above, in the event a Holder shall elect to convert any or all of its Series Y 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 Y
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 Y 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&nbsp;6(c) hereof and subject to Holder&#146;s right to rescind a Notice of Conversion pursuant to Section&nbsp;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&nbsp;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&nbsp;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&#146;s option, either
(a)&nbsp;in cash or (b)&nbsp;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)&nbsp;the number of Conversion Shares required to have been issued by the Corporation on such Share Delivery Date, (y)&nbsp;an amount equal to the Daily Failure Amount and
(z)&nbsp;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;<I> provided, however</I>, 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&#146;s for purposes of Section&nbsp;13(d) of the Exchange Act (including shares held by any &#147;group&#148; 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&#146;s right to pursue actual damages for the Corporation&#146;s failure to deliver Conversion Shares within the period </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">20 </P>

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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&#146;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. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">iii. <U>Compensation for
<FONT STYLE="white-space:nowrap">Buy-In</FONT> on Failure to Timely Deliver Certificates Upon Conversion</U>. 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&nbsp;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&#146;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 &#147;<B><U><FONT STYLE="white-space:nowrap">Buy-In</FONT></U></B>&#148;), then the Corporation shall (A)&nbsp;pay in cash to such Holder (in addition to any other remedies
available to or elected by such Holder) the amount by which (x)&nbsp;such Holder&#146;s total purchase price (including any brokerage commissions) for the shares of Common Stock so purchased exceeds (y)&nbsp;the product of (1)&nbsp;the aggregate
number of shares of Common Stock that such Holder was entitled to receive from the conversion at issue multiplied by (2)&nbsp;the actual sale price at which the sell order giving rise to such purchase obligation was executed (including any brokerage
commissions) and (B)&nbsp;at the option of such Holder, either reissue (if surrendered) the shares of Series Y Preferred Stock equal to the number of shares of Series Y 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&nbsp;6(d)(i). For example, if a Holder purchases shares of Common Stock having a total purchase price of $11,000
to cover a <FONT STYLE="white-space:nowrap">Buy-In</FONT> with respect to an attempted conversion of shares of Series Y 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)&nbsp;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)&nbsp;Trading Days
after the occurrence of a <FONT STYLE="white-space:nowrap">Buy-In,</FONT> indicating the amounts </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">payable to such Holder in respect of such <FONT
STYLE="white-space:nowrap">Buy-In</FONT> together with applicable confirmations and other evidence reasonably requested by the Corporation. Nothing herein shall limit a Holder&#146;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&#146;s failure to timely deliver certificates representing shares of Common Stock upon conversion of the shares
of Series Y Preferred Stock as required pursuant to the terms hereof; provided, however, that the Holder shall not be entitled to both (i)&nbsp;require the reissuance of the shares of Series Y Preferred Stock submitted for conversion for which such
conversion was not timely honored and (ii)&nbsp;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&nbsp;6(d)(i). </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">iv. <U>Reservation of Shares Issuable Upon Conversion</U>. 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 Y Preferred Stock, free from preemptive rights or any other actual contingent purchase rights of Persons other than the Holders of
the Series Y 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&nbsp;7) upon the conversion of all outstanding shares of Series Y 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 <FONT STYLE="white-space:nowrap">non-assessable.</FONT> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">v. <U>Fractional Shares</U>. No fractional shares or scrip representing fractional shares of Common Stock shall be issued upon the conversion
of the Series Y 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 final fraction in an amount equal to such
fraction multiplied by the Conversion Price. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">vi. <U>Transfer Taxes</U>. The issuance of certificates for shares of the Common Stock upon
conversion of the Series Y 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 </P>
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certificate upon conversion in a name other than that of the registered Holder(s) of such shares of Series Y 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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e) <U>Status as Stockholder</U>. Upon each Conversion Date, (i)&nbsp;the shares of Series Y Preferred Stock being converted shall be deemed
converted into shares of Common Stock and (ii)&nbsp;the Holder&#146;s rights as a holder of such converted shares of Series Y 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&#146;s failure to convert Series Y Preferred Stock. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><U>Section</U><U></U><U>&nbsp;7</U>.
<U>Certain Adjustments</U>. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) <U>Stock Dividends and Stock Splits</U>. If the Corporation, at any time while this Series Y Preferred
Stock is outstanding: (A)&nbsp;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 Y Preferred Stock) with respect to the then outstanding shares of Common Stock; (B)&nbsp;subdivides outstanding shares of Common Stock into a larger number of shares; or (C)&nbsp;combines (including by way of a reverse
stock split) outstanding shares of Common Stock into a smaller number of shares, then the Conversion Price 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 before such event and of which the denominator shall be the number of shares of Common Stock outstanding immediately after such event (excluding any treasury shares of the Corporation). Any adjustment made
pursuant to this Section&nbsp;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. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) <U>Fundamental Transaction</U>. If, at any time while this Series Y Preferred Stock is
outstanding, (A)&nbsp;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, <FONT
STYLE="white-space:nowrap">spin-off,</FONT> 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)&nbsp;the Corporation effects any sale of all or substantially all of its assets in one transaction or a series of related transactions, (C)&nbsp;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)&nbsp;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&nbsp;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 &#147;<B><U>Fundamental Transaction</U></B>&#148;), then, upon any subsequent conversion of this Series Y 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 &#147;<B><U>Alternate
Consideration</U></B>&#148;). 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 Y 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 </P>
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same terms and conditions and issue to the Holders new preferred stock consistent with the foregoing provisions and evidencing the Holders&#146; 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&nbsp;7(b) and insuring that this Series Y 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. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) <U>Calculations</U>. All calculations under this Section&nbsp;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&nbsp;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. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d) <U>Notice to the Holders</U>. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">i. <U>Adjustment to Conversion Price</U>. Whenever the Conversion Price is adjusted pursuant to any provision of this Section&nbsp;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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">ii. <U>Other Notices</U>. If: (A)&nbsp;the Corporation shall declare a dividend (or any other distribution in whatever form) on the Common
Stock, (B)&nbsp;the Corporation shall declare a special nonrecurring cash dividend on or a redemption of the Common Stock, (C)&nbsp;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)&nbsp;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)&nbsp;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 Y 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)&nbsp;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)&nbsp;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. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><U>Section</U><U></U><U>&nbsp;8</U>. <U>Miscellaneous</U>. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) <U>Notices</U>. 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)&nbsp;the date of </P>
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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)&nbsp;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)&nbsp;the second Business
Day following the date of mailing, if sent by nationally recognized overnight courier service, or (iv)&nbsp;upon actual receipt by the party to whom such notice is required to be given. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) <U>Lost or Mutilated Series Y Preferred Stock Certificate</U>. If a Holder&#146;s Series Y 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 Y 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. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) <U>Waiver</U>. 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 Y Preferred Stock granted hereunder may be waived as to all shares of Series Y Preferred Stock (and the Holders thereof) upon the written consent of the Holders of not less than a majority of
the shares of Series Y 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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d) <U>Severability</U>. 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. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e) <U>Next Business Day</U>. 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. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(f) <U>Headings</U>. 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. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(g)
<U>Status of Converted Series Y Preferred Stock</U>. If any shares of Series Y 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 Y Preferred Stock. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">******************** </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B>IN WITNESS WHEREOF</B>, the undersigned has executed this Certificate of Designation this
_____<SUP STYLE="font-size:85%; vertical-align:top">th</SUP> day of December&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2018. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">&nbsp;</TD></TR>
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<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Chief Executive Officer</P></TD></TR>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>ANNEX A </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">NOTICE OF CONVERSION </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(TO BE
EXECUTED BY THE REGISTERED HOLDER IN ORDER TO CONVERT SHARES OF SERIES Y PREFERRED STOCK) </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The undersigned Holder hereby irrevocably elects to convert the
number of shares of Series Y Preferred Stock indicated below, [represented by stock certificate No(s). &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ] [represented in book-entry form], into shares
of common stock, par value $0.0075 per share (the &#147;<B><U>Common Stock</U></B>&#148;), of XOMA Corporation, a Delaware corporation (the &#147;<B><U>Corporation</U></B>&#148;), 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 Y Convertible Preferred Stock (the &#147;<B><U>Certificate of Designation</U></B>&#148;) filed by the Corporation with the Secretary of State of the State of Delaware on December ___,
2018. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">As of the date hereof, the number of shares of Common Stock beneficially owned by the undersigned Holder (together with such Holder&#146;s
Affiliates, and any other Person whose beneficial ownership of Common Stock would be aggregated with the Holder&#146;s for purposes of Section&nbsp;13(d) or Section&nbsp;16 of the Exchange Act and the applicable regulations of the Commission,
including any &#147;group&#148; of which the Holder is a member (the foregoing, &#147;<B><U>Attribution Parties</U></B>&#148;)), including the number of shares of Common Stock issuable upon conversion of the Series Y Preferred Stock subject to this
Notice of Conversion, but excluding the number of shares of Common Stock which are issuable upon (A)&nbsp;conversion of the remaining, unconverted Series Y Preferred Stock beneficially owned by such Holder or any of its Attribution Parties, and
(B)&nbsp;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&nbsp;6(c) of the Certificate of Designation, is &nbsp;&nbsp;&nbsp;&nbsp;%. For purposes hereof, beneficial ownership shall be calculated in accordance with Section&nbsp;13(d) of
the Exchange Act and the applicable regulations of the Commission. In addition, for purposes hereof, &#147;group&#148; has the meaning set forth in Section&nbsp;13(d) of the Exchange Act and the applicable regulations of the Commission. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Conversion calculations: </I></B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Date&nbsp;to&nbsp;Effect Conversion:__________________________________________________________________________________ </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><U></U>Number&nbsp;of&nbsp;shares&nbsp;of&nbsp;Series Y&nbsp;Preferred&nbsp;Stock&nbsp;owned&nbsp;prior&nbsp;to
Conversion:____________________________________________ </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Number&nbsp;of&nbsp;shares&nbsp;of&nbsp;Series
Y&nbsp;Preferred&nbsp;Stock&nbsp;to&nbsp;be Converted:_____________________________________________________ </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Number&nbsp;of&nbsp;shares&nbsp;of&nbsp;Common&nbsp;Stock&nbsp;to&nbsp;be
Issued:_______________________________________________________________ </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Address&nbsp;for&nbsp;delivery&nbsp;of&nbsp;physical
certificates:________________________________________________________________________ </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">___________________________________________________________________________________________________________ </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><U>or </U></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">for&nbsp;DWAC&nbsp;Delivery: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">DWAC&nbsp;Instructions:_______________________________________________________________________________________ </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Broker&nbsp;no:<U></U>_______________________________________________________________________________________________ </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Account&nbsp;no:______________________________________________________________________________________________ </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:2%; text-indent:-2%; font-size:10pt; font-family:Times New Roman">HOLDER </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:2%; text-indent:-2%; font-size:10pt; font-family:Times New Roman">By:_____________________________________ </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:2%; text-indent:-2%; font-size:10pt; font-family:Times New Roman">Name: </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:2%; text-indent:-2%; font-size:10pt; font-family:Times New Roman">Title: </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:2%; text-indent:-2%; font-size:10pt; font-family:Times New Roman">Date: </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit 99.1 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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 </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>XOMA Announces Proposed Rights Offering </B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">Rights Offering will be available to all shareholders of record on November&nbsp;16, 2018 </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
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<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">$20&nbsp;million to be raised </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">Fully backstopped by BVF Partners L.P. </P></TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Emeryville, California</B>&nbsp;&#150;&nbsp;November 7, 2018 &#150; XOMA Corporation (Nasdaq: XOMA) (&#147;XOMA&#148; or the &#147;Company&#148;) today
announced its intent to commence a rights offering pursuant to which the Company would raise approximately $20&nbsp;million through the distribution of subscription rights to holders of its common stock and Series X preferred stock, which will
entitle the holders to purchase shares of XOMA&#146;s common stock at $13.00 per share (the &#147;Rights Offering&#148;). The offering will be fully backstopped by BVF Partners L.P., the Company&#146;s largest stockholder, which has agreed to
purchase at a minimum its <FONT STYLE="white-space:nowrap">as-converted</FONT> <I>pro rata</I> share of the offering amount, and will purchase an additional amount of securities, up to a total of approximately $20&nbsp;million, that are not
subscribed for by the Company&#146;s other stockholders in the rights offering. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Under the proposed Rights Offering, the Company plans to distribute <FONT
STYLE="white-space:nowrap">non-transferable</FONT> subscription rights to purchase a portion of a share of Common Stock for each share of Common Stock outstanding and for each share of common stock issuable on conversion of the Company&#146;s
outstanding shares of Series X Preferred Stock, at a subscription price per share of&nbsp;$13.00, to its stockholders of record as of&nbsp;the close of business on November&nbsp;16, 2018&nbsp;(the &#147;Record Date&#148;). The subscription rights
will be exercisable for up to an aggregate of approximately 1,538,460 shares of Common Stock, with participation to be allocated among holders of its Common Stock and Series X Preferred Stock on a pro rata basis (assuming full conversion of the
Series X Preferred Stock into shares of Common Stock), subject to the aggregate offering threshold and ownership limitations. The subscription rights are <FONT STYLE="white-space:nowrap">non-transferable</FONT> and may be exercised only during the
anticipated subscription period of&nbsp;Monday, November&nbsp;19, 2018, through&nbsp;5:00 PM EDT on&nbsp;Friday, December&nbsp;14, 2018, unless extended. Any participant in the Rights Offering that, by exercise of its subscription right would become
a holder of greater than 9.9% of the outstanding number of shares of Common Stock of the Company following the offering may elect to instead purchase Series Y Preferred Stock of the Company. The company intends to sell the Series Y Preferred Stock
at $13,000 per share, and any such holder so electing would have a right to purchase one <FONT STYLE="white-space:nowrap">one-thousandth</FONT> of a share of Series Y Preferred Stock for each share of Common Stock it had a right to purchase under
the subscription rights. Each share of Series Y Preferred Stock will, subject to certain limitations, be convertible into 1,000 shares of common at the election of the holder. The Series Y Preferred Stock will generally have no voting rights, except
as required by law, and will participate&nbsp;pari passu&nbsp;with any distribution of proceeds to holders of Common Stock in the event of the Company&#146;s liquidation, dissolution or winding up. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The Rights Offering will be made pursuant to the Company&#146;s effective shelf registration statement on
file with the Securities and Exchange Commission (&#147;SEC&#148;) and only by means of a prospectus supplement and accompanying prospectus. The Company expects to mail subscription certificates evidencing the subscription rights and a copy of the
prospectus supplement and accompanying prospectus for the Rights Offering shortly following the Record Date. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">This press release is not intended to and
does not constitute an offer to sell or the solicitation of an offer to subscribe for or buy or an invitation to purchase or subscribe for any securities in any jurisdiction, nor shall there be any sale, issuance or transfer of securities in any
jurisdiction in contravention of applicable law. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section&nbsp;10 of the Securities Act of 1933, as amended. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">BVF Partners L.P., the Company&#146;s largest shareholder, owning approximately 17.9% of the Company&#146;s outstanding common stock (and 48.6% on an <FONT
STYLE="white-space:nowrap">as-converted</FONT> basis), will backstop the Rights Offering and has agreed to purchase up to $20&nbsp;million of Series Y Preferred Stock at price of $13,000 per share in a private placement within five days of
conclusion of the Rights Offering, with the dollar amount to be purchased in such private placement reduced by the dollar amount sold by the Company (including to BVF Partners L.P., and its affiliates), in the Rights Offering. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>About XOMA Corporation </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">XOMA has built a significant
portfolio of products that are licensed to and being developed by other biotech and pharmaceutical companies. The Company&#146;s portfolio of partner-funded programs spans multiple stages of the drug development process and across various
therapeutic areas. Many of these licenses are the result of XOMA&#146;s pioneering efforts in the discovery and development of antibody therapeutics. The Company&#146;s royalty-aggregator business model includes acquiring additional licenses to
partner-funded programs. XOMA&#146;s license portfolio has the potential to generate significant milestone payments and royalty revenue in the future. For more information, visit <U>www.xoma.com</U>. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Safe Harbor Statement </B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">This release contains
&#147;forward-looking statements&#148; within the meaning of Section&nbsp;27A of the Securities Act of 1933, as amended, and Section&nbsp;21E of the Securities Exchange Act of 1934, as amended, and such forward-looking statements are made pursuant
to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. &#147;Forward-looking statements&#148; describe future expectations, plans, results, or strategies and are generally preceded by words such as
&#147;anticipates,&#148; &#147;expect,&#148; &#147;may,&#148; &#147;plan&#148; or &#147;will&#148;. Forward-looking statements in this release include, but are not limited to, statements regarding plans, amounts and timing for Rights Offering and
the private placement to BVF Partners L.P.,<I> </I>future financing opportunities, </P>
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the anticipated use of proceeds derived therefrom and expectations regarding participation in the rights offering. You are cautioned that such statements are subject to a multitude of risks and
uncertainties that could cause future circumstances, events, or results to differ materially from those projected in the forward-looking statements, including the availability of, and participation in, financing opportunities. These and other risks
are identified in our filings with the Commission, including without limitation our Quarterly Report on Form <FONT STYLE="white-space:nowrap">10-Q</FONT> for the quarter ended September&nbsp;30, 2018 and in other filings subsequently made by the
Company with the Commission. All forward-looking statements contained in this press release speak only as of the date on which they were made and are based on management&#146;s assumptions and estimates as of such date. We do not undertake any
obligation to publicly update any forward-looking statements, whether as a result of the receipt of new information, the occurrence of future events or otherwise. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"># # # </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Investor contact: </B></P>
<P STYLE="margin-top:3pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Juliane Snowden </P> <P STYLE="margin-top:3pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Oratorium Group, LLC </P>
<P STYLE="margin-top:3pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">+1 <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">646-438-9754</FONT></FONT> </P>
<P STYLE="margin-top:3pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">jsnowden@oratoriumgroup.com </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Media contact: </B></P>
<P STYLE="margin-top:3pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Kathy Vincent </P> <P STYLE="margin-top:3pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">KV Consulting&nbsp;&amp; Management </P>
<P STYLE="margin-top:3pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">+1 <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">310-403-8951</FONT></FONT> </P>
<P STYLE="margin-top:3pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">kathy@kathyvincent.com </P>
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
