<SEC-DOCUMENT>0001144204-12-014329.txt : 20120312
<SEC-HEADER>0001144204-12-014329.hdr.sgml : 20120310
<ACCEPTANCE-DATETIME>20120312170459
ACCESSION NUMBER:		0001144204-12-014329
CONFORMED SUBMISSION TYPE:	SC 13D
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20120312
DATE AS OF CHANGE:		20120312
GROUP MEMBERS:		JULIAN C. BAKER

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			XOMA Corp
		CENTRAL INDEX KEY:			0000791908
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				942756657
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-38028
		FILM NUMBER:		12684716

	BUSINESS ADDRESS:	
		STREET 1:		2910 SEVENTH ST
		CITY:			BERKELEY
		STATE:			CA
		ZIP:			94710
		BUSINESS PHONE:		5106441170

	MAIL ADDRESS:	
		STREET 1:		2910 SEVENTH ST
		CITY:			BERKLEY
		STATE:			CA
		ZIP:			94710

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BAKER FELIX
		CENTRAL INDEX KEY:			0001087940

	FILING VALUES:
		FORM TYPE:		SC 13D

	MAIL ADDRESS:	
		STREET 1:		BAKER BROTHERS ADVISORS
		STREET 2:		667 MADISON AVENUE, 21ST FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10065
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D
<SEQUENCE>1
<FILENAME>v305421_sc13d.htm
<DESCRIPTION>SC 13D
<TEXT>
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<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B>SECURITIES AND EXCHANGE COMMISSION</B>&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B>WASHINGTON, DC 20549&nbsp;</B></P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B>SCHEDULE 13D</B>&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B>(Rule 13d-102)&nbsp;</B></P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B>INFORMATION TO BE INCLUDED IN STATEMENTS
FILED PURSUANT</B>&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B>TO RULE 13d-l(a) AND AMENDMENTS
THERETO FILED PURSUANT</B>&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B>TO RULE 13d-2(a)</B></P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;&nbsp;</P>

<P STYLE="font: 10pt/85% Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Amendment No. <U>___</U>)*</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Xoma Corporation</P>

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<P STYLE="font: 10pt/0.95pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; color: Red"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Name of Issuer)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Common Stock, par value $0.0075 per share</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

<HR NOSHADE SIZE="1" STYLE="color: Black; width: 100%; margin-top: 3pt; margin-bottom: 3pt">
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Title of Class of Securities)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>98419J107</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(CUSIP number)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Leo Kirby</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">667 Madison Avenue, 21<SUP>st</SUP> Floor</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">New York, NY 10065</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(212) 339-5633</P>

<P STYLE="font: 10pt/85% Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><IMG SRC="image_001.gif" ALT=""></P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt">(Name,
address and telephone number of person authorized to receive notices and communications)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">March 6, 2012</P>

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<P STYLE="font: 10pt/0.95pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; color: Red"></P>

<P STYLE="margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Date of event which requires filing of
this statement)</P>

<P STYLE="font: 10pt/85% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font: 10pt/85% Times New Roman, Times, Serif">If
the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule
13D, and is filing this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box </FONT><FONT STYLE="font-family: Wingdings 2">&#163;</FONT><FONT STYLE="font: 10pt/85% Times New Roman, Times, Serif">.</FONT></P>

<P STYLE="font: 10pt/85% Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt/85% Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Continued on the following pages)</P>

<P STYLE="font: 10pt/85% Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Page 1 of 10 Pages)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">________________________________</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">*The remainder of this cover page shall
be filled out for a reporting person&rsquo;s initial filing on this form with respect to the subject class of securities, and for
any subsequent amendment containing information which would alter disclosures provided in a prior cover page.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">The information required on the remainder of this cover page
shall not be deemed to be &ldquo;filed&rdquo; for the purpose of Section 18 of the Securities Exchange Act of 1934 or otherwise
subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act.</P>

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<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-family: Times New Roman, Times, Serif">
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">1.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">NAMES OF REPORTING PERSONS</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">Felix J. Baker</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">2.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
        THE APPROPRIATE BOX IF A MEMBER OF A GROUP*&#9;(a) </FONT><FONT STYLE="font-family: Wingdings">p</FONT></P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)
        </FONT><FONT STYLE="font-family: Wingdings">p</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">3.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">SEC USE ONLY</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">4.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">SOURCE OF FUNDS*</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">WC</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">5.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
        BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)&#9;</FONT><FONT STYLE="font-family: Wingdings">o</FONT></P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-left: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">6.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5in; text-indent: -4.5in">CITIZENSHIP OR PLACE OF ORGANIZATION&#9;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5in; text-indent: -4.5in">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5in; text-indent: -4.5in">United States</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5in; text-indent: -4.5in">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" ROWSPAN="4" STYLE="border: black 1pt solid; padding-top: 6pt; padding-bottom: 2.9pt; text-autospace: none; font-size: 10pt; text-align: center; vertical-align: middle">NUMBER OF <BR>
SHARES <BR>
BENEFICIALLY <BR>
OWNED BY EACH <BR>
REPORTING <BR>
PERSON WITH</TD>
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">7.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 135.35pt; text-indent: -135.35pt">SOLE VOTING POWER:
        0</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 135.35pt; text-indent: -135.35pt">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">8.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 151.5pt; text-indent: -151.5pt">SHARED VOTING POWER:
        23,127,674 (1)</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 151.5pt; text-indent: -151.5pt">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">9.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">SOLE DISPOSITIVE POWER: 0</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">10.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 171pt; text-indent: -171pt">SHARED DISPOSITIVE POWER:
        23,127,674 (1)</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 171pt; text-indent: -171pt">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">11.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:23,127,674(1)</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">12.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
        BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*&#9;</FONT><FONT STYLE="font-family: Wingdings">p</FONT></P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">13.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 124.5pt; text-indent: -124.5pt">30.6%</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 124.5pt; text-indent: -124.5pt">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">14.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">TYPE OF REPORTING PERSON*</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">IN</P></TD></TR>
<TR>
    <TD STYLE="width: 10%">&nbsp;</TD>
    <TD STYLE="width: 10%">&nbsp;</TD>
    <TD STYLE="width: 10%">&nbsp;</TD>
    <TD STYLE="width: 70%">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(1) See Item 5(a) of this Amendment for a detailed explanation
of the shares of beneficial ownership and percentage ownership of the Reporting Persons.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-family: Times New Roman, Times, Serif">
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">1.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">NAMES OF REPORTING PERSONS</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">Julian C. Baker</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">2.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
        THE APPROPRIATE BOX IF A MEMBER OF A GROUP*&#9;(a) </FONT><FONT STYLE="font-family: Wingdings">p</FONT></P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)
        </FONT><FONT STYLE="font-family: Wingdings">p</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">3.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">SEC USE ONLY</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">4.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">SOURCE OF FUNDS*</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">WC</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">5.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
        BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)&#9;</FONT><FONT STYLE="font-family: Wingdings">o</FONT></P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-left: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">6.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5in; text-indent: -4.5in">CITIZENSHIP OR PLACE OF ORGANIZATION&#9;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5in; text-indent: -4.5in">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5in; text-indent: -4.5in">United States</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 4.5in; text-indent: -4.5in">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" ROWSPAN="4" STYLE="border: black 1pt solid; padding-top: 6pt; padding-bottom: 2.9pt; text-autospace: none; font-size: 10pt; text-align: center; vertical-align: middle">NUMBER OF <BR>
SHARES <BR>
BENEFICIALLY <BR>
OWNED BY EACH <BR>
REPORTING <BR>
PERSON WITH</TD>
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">7.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 135.35pt; text-indent: -135.35pt">SOLE VOTING POWER:
        0</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 135.35pt; text-indent: -135.35pt">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">8.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 151.5pt; text-indent: -151.5pt">SHARED VOTING POWER 23,127,674
        (1)</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 151.5pt; text-indent: -151.5pt">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">9.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">SOLE DISPOSITIVE POWER: 0</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">10.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 171pt; text-indent: -171pt">SHARED DISPOSITIVE POWER:
        23,127,674(1)</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 171pt; text-indent: -171pt">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">11.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
        23,127,674(1)</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">12.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">CHECK
        BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*&#9;</FONT><FONT STYLE="font-family: Wingdings">p</FONT></P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">13.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 124.5pt; text-indent: -124.5pt">30.6%</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 124.5pt; text-indent: -124.5pt">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">14.</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD>
    <TD COLSPAN="3" STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 10pt/6pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
        <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">TYPE OF REPORTING PERSON*</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">IN</P></TD></TR>
<TR>
    <TD STYLE="width: 10%">&nbsp;</TD>
    <TD STYLE="width: 10%">&nbsp;</TD>
    <TD STYLE="width: 10%">&nbsp;</TD>
    <TD STYLE="width: 70%">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">(1) See Item 5(a) of this Amendment for a detailed explanation
of the shares of beneficial ownership and percentage ownership of the Reporting Persons.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>ITEM 1.&#9;Security and Issuer.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">The class of equity security to which this statement on
Schedule 13D relates is the common stock, par value $0.0075 per share (the &ldquo;<U>Common Stock</U>&rdquo;) of Xoma Corporation,
a corporation organized under the laws of the state of Delaware (the &ldquo;<U>Issuer</U>&rdquo;). The address of the principal
executive offices of the Issuer is 2910 Seventh Street, Berkeley, CA 94710. Information given in response to each item shall be
deemed incorporated by reference in all other items, as applicable.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 2.&#9;Identity and Background.</B></P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">(a) The Reporting Persons are:</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">1.<FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Felix J. Baker; and</FONT></P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">2.<FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Julian C. Baker</FONT></P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">(b) The business address of each of the Reporting Persons
is:</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">c/o Baker Bros. Advisors, LLC</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">667 Madison Avenue, 21<SUP>st</SUP> Floor</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">New York, NY 10065</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">(212) 339-5633</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">(c) The principal business of each Reporting Person is to
serve as a managing member of Baker Bros.<BR>
Advisors, LLC (an entity engaged in investment activities).</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">Certain securities of the Issuer are owned directly by 667,
L.P., a limited partnership the sole general partner of which is Baker Biotech Capital, L.P., a limited partnership the sole general
partner of which is Baker Biotech Capital (GP), LLC. Julian C. Baker and Felix J. Baker are the controlling members of Baker Biotech
Capital (GP), LLC. As the sole general partner of Baker Biotech Capital, L.P., Baker Biotech Capital (GP), LLC may be deemed to
be the indirect beneficial owner of such securities under Rule 16a-1(a)(2) promulgated under the Exchange Act. However, pursuant
to Rule 16a-1(a)(4) promulgated under the Exchange Act, Baker Biotech Capital (GP), LLC disclaims beneficial ownership of such
securities, except to the extent of its pecuniary interest therein. As the controlling members of Baker Biotech Capital (GP), LLC,
Julian C. Baker and Felix J. Baker may be deemed to be the indirect beneficial owners of such securities under Rule 16a-1(a)(2)
promulgated under the Exchange Act. However, pursuant to Rule 16a-1(a)(4) promulgated under the Exchange Act, each of Julian C.
Baker and Felix J. Baker disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">Certain securities of the Issuer are owned directly by Baker
Brothers Life Sciences, L.P., a limited partnership the sole general partner of which is Baker Brothers Life Sciences Capital,
L.P., a limited partnership the sole general partner of which is Baker Brothers Life Sciences Capital (GP), LLC. Julian C. Baker
and Felix J. Baker are the controlling members of Baker Brothers Life Sciences Capital (GP), LLC. As the sole general partner of
Baker Brothers Life Sciences Capital, L.P., Baker Brothers Life Sciences Capital (GP), LLC may be deemed to be the indirect beneficial
owner of such securities under Rule 16a-1(a)(2) promulgated under the Exchange Act. However, pursuant to Rule 16a-1(a)(4) promulgated
under the Exchange Act, Baker Brothers Life Sciences Capital (GP), LLC disclaims beneficial ownership of such securities, except
to the extent of its pecuniary interest therein. As the controlling members of Baker Brothers Life Sciences Capital (GP), LLC,
Julian C. Baker and Felix J. Baker may be deemed to be the indirect beneficial owners of such securities under Rule 16a-1(a)(2)
promulgated under the Exchange Act. However, pursuant to Rule 16a-1(a)(4) promulgated under the Exchange Act, each of Julian C.
Baker and Felix J. Baker disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">Certain securities of the Issuer are owned directly by 14159,
L.P., a limited partnership the sole general partner of which is 14159 Capital, L.P., a limited partnership the sole general partner
of which is 14159 Capital (GP), LLC. Julian C. Baker and Felix J. Baker are the controlling members of 14159 Capital (GP), LLC.
As the sole general partner of 14159 Capital, L.P., 14159 Capital (GP), LLC may be deemed to be the indirect beneficial owner of
such securities under Rule 16a-1(a)(2) promulgated under the Exchange Act. However, pursuant to Rule 16a-1(a)(4) promulgated under
the Exchange Act, 14159 Capital (GP), LLC disclaims beneficial ownership of such securities, except to the extent of its pecuniary
interest therein. As the controlling members of 14159 Capital (GP), LLC, Julian C. Baker and Felix J. Baker may be deemed to be
the indirect beneficial owners of such securities under Rule 16a-1(a)(2) promulgated under the Exchange Act. However, pursuant
to Rule 16a-1(a)(4) promulgated under the Exchange Act, each of Julian C. Baker and Felix J. Baker disclaims beneficial ownership
of such securities, except to the extent of his pecuniary interest therein.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">Each of 667, L.P., Baker Brothers Life Sciences, L.P. and
14159, L.P. is referred to individually as a &ldquo;<U>Purchasing Fund</U>&rdquo; and collectively as the &ldquo;<U>Purchasing
Funds</U>&rdquo;. Each of the Purchasing Funds, is part of the Baker Brothers Investments family of funds managed by the Reporting
Persons (such funds and their affiliates or associates, &ldquo;<U>Baker</U>&rdquo;).</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">(d) and (e) During the past five years, none of the Reporting
Persons nor any of the persons listed in Item 2(b) and (c) above has been (i) convicted in a criminal proceeding (excluding traffic
violations or similar misdemeanors) or (ii) a party to a civil proceeding of a judicial or administrative body of competent jurisdiction
and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting
or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">(f) The citizenship of each of Julian C. Baker and Felix
J. Baker is the United States of America.</P>

<P STYLE="font: 10pt/88% Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt/88% Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 3.&#9;Source and Amount of Funds or Other Consideration.</B></P>



<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">The Reporting Persons acquired certain of the shares of
Common Stock in connection with a registered direct offering by the Issuer (the &ldquo;<U>Offering</U>&rdquo;) which closed on
March 6, 2012 (the &ldquo;<U>Issuance Date</U>&rdquo;). In the Offering, the Issuer sold a total of (i) 15,151,515 shares of the
Common Stock (collectively, the &ldquo;<U>Shares</U>&rdquo;), (ii) 15,151,515 warrants to purchase an aggregate of 7,575,759 shares
of the Common Stock (the &ldquo;<U>Warrants</U>&rdquo;) at an exercise price of $1.76 per share, for a purchase price of $1.32
per unit.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">The Warrants were exercisable on the Issuance Date and expire
on the fifth anniversary of the Issuance Date. <FONT STYLE="text-underline-style: double; color: blue; letter-spacing: 0pt"><U>
</U></FONT></P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 27pt">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">The Purchasing Funds purchased an aggregate of 15,151,515 Shares
and 15,151,515<B> </B>Warrants as follows:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 70%">
<TR STYLE="vertical-align: bottom; background-color: rgb(204,255,204)">
    <TD STYLE="font-size: 10pt; text-decoration: underline; padding-bottom: 1pt; padding-left: 5.4pt">Fund</TD><TD STYLE="font-size: 10pt; padding-bottom: 1pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">Shares</TD><TD STYLE="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; padding-bottom: 1pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">Warrants</TD><TD STYLE="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; padding-bottom: 1pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">Price Paid</TD><TD STYLE="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="width: 40%; font-size: 10pt; text-align: left; padding-left: 5.4pt">667, L.P.</TD><TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 12%; font-size: 10pt; text-align: right">1,585,591</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 12%; font-size: 10pt; text-align: right">1,585,591</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 12%; font-size: 10pt; text-align: right">$2,092,98.</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,255,204)">
    <TD STYLE="font-size: 10pt; text-align: left; padding-left: 5.4pt">Baker Brothers Life Sciences, L.P.</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">13,216,449</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">13,216,449</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">$</TD><TD STYLE="font-size: 10pt; text-align: right">17,445,713</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="font-size: 10pt; text-align: left; padding-left: 5.4pt">14159, L.P.</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">349,475</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">349,475</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">$</TD><TD STYLE="font-size: 10pt; text-align: right">461,307</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD></TR>
</TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">Prior to the Offering, the Reporting Persons expended an aggregate
of approximately $2,014,730 to purchase an aggregate of 400,400 shares of Common Stock (the &ldquo;Previous Holdings&rdquo;). Such
transactions were effected in open market purchases and the Common Stock was acquired in the ordinary course of business.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">The funds used to purchase the Previous Holdings, Shares and
Warrants reported in Item 5 below were provided from the available working capital of the entities there indicated.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 4.&#9;Purpose of Transactions.</B></P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">The Purchasing Funds acquired the Previous Holdings, Shares
and Warrants solely for investment. The Reporting Persons expect to review from time to time the investment positions of these
entities and may, depending on market and other conditions, increase or decrease their holdings.</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">Whether the entities purchase any additional shares of
Common Stock, including by exercise of the Warrants, or dispose of any shares of Common Stock, and the amount and timing of any
such transactions, will depend upon the Reporting Persons&rsquo; continuing assessments of pertinent factors, including the availability
of shares of Common Stock for purchase at particular price levels, the Issuer&rsquo;s business and prospects, other business investment
opportunities, economic conditions, stock market conditions, money market conditions, the attitudes and actions of the board of
directors and management of the Issuer, the availability and nature of opportunities to dispose of shares in the Issuer and other
plans and requirements of the particular entities. Depending upon their assessments of these factors from time to time, the Reporting
Persons may change their present intentions as stated above, including determining to acquire additional shares of Common Stock
(by means of open market purchases, privately negotiated purchases, exercise of some or all of the Warrants, or otherwise) or to
dispose of some or all of the shares of Common Stock under their control. The Reporting Persons have expressed to the Issuer that
they may be interested in nominating a member of the Issuer&rsquo;s board of directors at some future date, but no decision has
been made on whether or not to make such a request. &nbsp;Except as otherwise disclosed herein, at the present time, the Reporting
Persons do not have any plans or proposals with respect to any extraordinary corporate transaction involving the Issuer or any
sale of its assets, or with respect to its management, capitalization, dividend strategy, charter or by-laws, or any other change
in its business or corporate structure or with respect to the delisting or deregistration of any of its securities including, without
limitation, those matters described in subparagraphs (a) through (j) of Item 4 of Schedule 13D.</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 5.&#9;Interest in Securities of the Issuer.</B></P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">(a) and (b) Set forth below is the aggregate number of shares
of the Common Stock held by the Purchasing Funds and beneficially owned by the Reporting Persons, including shares that may be
acquired upon exercise of the warrants at an exercise price of $1.76 per share as of the date hereof by each of the following,
together with the percentage of outstanding shares of the Common Stock that such number represents based upon (i) 38,373,949 shares
of the Common Stock outstanding as reported on the Issuer&rsquo;s Prospectus supplement filed on March 6, 2012 in addition to 29,669,154
shares as reported on the Issuer&rsquo;s 8K filed on March 7, 2012. Such percentage figures are calculated on the basis that the
Warrants held by the Purchasing Funds are deemed exercised into shares of Common Stock but other outstanding Warrants are not deemed
exercised into shares of the Common Stock.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="font-size: 10pt; text-align: center; border-bottom: Black 1pt solid">Holder</TD><TD STYLE="font-size: 10pt; padding-bottom: 1pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt; text-align: center; border-bottom: Black 1pt solid">Shares of Common Stock</TD><TD STYLE="padding-bottom: 1pt; font-size: 10pt">&nbsp;</TD><TD STYLE="font-size: 10pt; padding-bottom: 1pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt; text-align: center; border-bottom: Black 1pt solid">Warrants to purchase .5 shares of Common Stock as Converted to Common</TD><TD STYLE="padding-bottom: 1pt; font-size: 10pt">&nbsp;</TD><TD STYLE="font-size: 10pt; padding-bottom: 1pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt; text-align: center; border-bottom: Black 1pt solid">Total</TD><TD STYLE="padding-bottom: 1pt; font-size: 10pt">&nbsp;</TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; border-bottom: Black 1pt solid"><P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><U>Percentage of Class Outstanding</U></P> <P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P></TD><TD STYLE="padding-bottom: 1pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,255,204)">
    <TD STYLE="width: 44%; font: 10pt Times New Roman, Times, Serif; text-align: left; padding-left: 5.4pt">667, L.P. <BR></TD><TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 10%; font-size: 10pt; text-align: right">1,585,591</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 10%; font-size: 10pt; text-align: right">792,796</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 10%; font-size: 10pt; text-align: right">2,378,387</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 2%; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 1%; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="width: 10%; font-size: 10pt; text-align: right">3.2</TD><TD STYLE="width: 1%; font-size: 10pt; text-align: left">%</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; padding-left: 5.4pt">Baker Brothers Life Sciences, L.P. <BR></TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">13,606,093</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">6,608,225</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">20,214,318</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">26.7</TD><TD STYLE="font-size: 10pt; text-align: left">%</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: rgb(204,255,204)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; padding-bottom: 1pt; padding-left: 5.4pt">14159, L.P. <BR></TD><TD STYLE="font-size: 10pt; padding-bottom: 1pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">360,231</TD><TD STYLE="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; padding-bottom: 1pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">174,738</TD><TD STYLE="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; padding-bottom: 1pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">534,969</TD><TD STYLE="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; padding-bottom: 1pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">0.7</TD><TD STYLE="padding-bottom: 1pt; font-size: 10pt; text-align: left">%</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-left: 5.4pt">Total <BR></TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">15,551,915</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">7,575,759</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">23,127,674</TD><TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt">&nbsp;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&nbsp;</TD><TD STYLE="font-size: 10pt; text-align: right">30.6</TD><TD STYLE="font-size: 10pt; text-align: left">%</TD></TR>
</TABLE>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0"></P>

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    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%"><TR><TD STYLE="text-align: center; width: 100%">&nbsp;</TD></TR></TABLE></DIV>
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<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">The Reporting Persons may also be deemed beneficial owners
of the Warrants to purchase .5 shares of common stock in the amounts listed as follows:</P>



<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 70%">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: black 1pt solid; line-height: 115%; text-align: center">Holder</TD>
    <TD STYLE="line-height: 115%">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1pt solid; line-height: 115%; text-align: center">Warrants</TD>
    <TD STYLE="line-height: 115%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: #CCFFCC">
    <TD STYLE="width: 73%; padding-left: 5.4pt">
        <P STYLE="font: 10pt/normal Times New Roman, Times, Serif; margin: 0pt 0">667, L.P.&nbsp;</P></TD>
    <TD STYLE="width: 2%; line-height: 115%">&nbsp;</TD>
    <TD STYLE="width: 1%; line-height: 115%">&nbsp;</TD>
    <TD STYLE="width: 23%; line-height: 115%; text-align: right">1,585,591</TD>
    <TD STYLE="width: 1%; line-height: 115%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: white">
    <TD STYLE="padding-left: 5.4pt">
        <P STYLE="font: 10pt/normal Times New Roman, Times, Serif; margin: 0pt 0">Baker Brothers Life Sciences, L.P.</P></TD>
    <TD STYLE="line-height: 115%">&nbsp;</TD>
    <TD STYLE="line-height: 115%">&nbsp;</TD>
    <TD STYLE="line-height: 115%; text-align: right">13,216,449</TD>
    <TD STYLE="line-height: 115%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom; background-color: #CCFFCC">
    <TD STYLE="padding-left: 5.4pt">
        <P STYLE="font: 10pt/normal Times New Roman, Times, Serif; margin: 0pt 0">14159, L.P.&nbsp;</P></TD>
    <TD STYLE="line-height: 115%"></TD>
    <TD STYLE="line-height: 115%">&nbsp;</TD>
    <TD STYLE="line-height: 115%; text-align: right">349,475</TD>
    <TD STYLE="line-height: 115%">&nbsp;</TD></TR>
</TABLE>


<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">The number of shares of Common Stock that may be acquired
by the Purchasing Funds upon any exercise of the Warrants is limited to the extent necessary to ensure that, following such exercise,
the total number of shares of Common Stock then beneficially owned by the Reporting Persons does not exceed 9.999% of the total
number of then issued and outstanding shares of Common Stock (including for such purpose the shares of Common Stock issuable upon
such exercise). Such restriction is not applicable at this time as the total number of shares of Common Stock currently beneficially
owned by Baker represents 22.9% of total outstanding Common Stock. If at any time subsequent to the intital issuance Baker shall
beneficially own less than 9.99% the number of shares of Common Stock that may be acquired by the Purchasing Funds upon any exercise
of the Warrants is again limited to the extent necessary to ensure that, following such exercise, the total number of shares of
Common Stock then beneficially owned by the Reporting Persons does not exceed 9.999% of the total number of then issued and outstanding
shares of Common Stock (including for such purpose the shares of Common Stock issuable upon such exercise). This 9.999% limitation
shall cease to apply from and after the date fourteen days prior to the Expiration Date.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">The number of shares of Common Stock that may be acquired
by the Purchasing Funds upon any exercise of the Warrants is limited to the extent necessary to ensure that, following such exercise,
the total number of shares of Common Stock then beneficially owned by the Reporting Persons does not exceed 4.999% of the total
number of then issued and outstanding shares of Common Stock (including for such purpose the shares of Common Stock issuable upon
such exercise). Such restriction is not applicable at this time as the total number of shares of Common Stock currently beneficially
owned by Baker represents 22.9% of total outstanding Common Stock. If at any time subsequent to the intital issuance Baker shall
beneficially own less than 4.99% the number of shares of Common Stock that may be acquired by the Purchasing Funds upon any exercise
of the Warrants is again limited to the extent necessary to ensure that, following such exercise, the total number of shares of
Common Stock then beneficially owned by the Reporting Persons does not exceed 4.999% of the total number of then issued and outstanding
shares of Common Stock (including for such purpose the shares of Common Stock issuable upon such exercise). This 4.999% limitation
shall cease to apply from and after the date fourteen days prior to the Expiration Date.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">By virtue of their ownership of entities that have the power
to control the investment decisions of the limited partnerships listed in the table above, Julian C. Baker and Felix J. Baker may
each be deemed to be beneficial owners of shares owned by the entities listed above and may be deemed to have shared power to vote
or direct the vote of and shared power to dispose or direct the disposition of such securities.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">(c) Except as described in this Schedule, including Item
3 hereof, none of the Reporting Persons has effected any transaction in the securities of the Issuer in the past 60 days.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">(d) No person other than the Reporting Persons has the right
to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the securities to which this
Schedule relates.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">(e) Not applicable.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 6.&#9;Contracts, Arrangements, Understandings or
Relationships with Respect to &#9;&#9;Securities of the Issuer.</B></P>

<P STYLE="font: 10pt/90% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">The disclosure regarding the registred direct offering discussesd
in Item 3 above is incorporated by reference herein.</P>

<P STYLE="font: 10pt/90% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/90% Times New Roman, Times, Serif; margin: 0pt 0"><I>Warrants</I></P>

<P STYLE="font: 10pt/90% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">As
part of the registered direct offering, the Purchasing Funds purchased 15,151,515 warrants to purchase an aggregate of 7,575,759
shares of Common Stock at an exercise price of $1.76 per share with an expiration date </FONT>on the fifth anniversary of the Issuance
Date. <FONT STYLE="text-underline-style: double; color: blue; letter-spacing: 0pt"><U> </U></FONT></P>

<P STYLE="font: 10pt/90% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/115% Times New Roman, Times, Serif; margin: 0pt 0">The foregoing description of the warrants is only a summary
and is qualified in its entirety by reference to the form of warrant, a copy of which is filed as <U>Exhibit 2</U> hereto.</P>

<P STYLE="font: 10pt/90% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/90% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/90% Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 7.&#9;Materials to be Filed as Exhibits.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><B>&nbsp;</B></P>

<TABLE ALIGN="CENTER" CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse; font-family: Times New Roman, Times, Serif">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 16%; padding-right: 5.4pt; padding-left: 5.4pt; text-autospace: none; font-size: 10pt">Exhibit 1:</TD>
    <TD STYLE="width: 84%; padding-right: 5.4pt; padding-left: 5.4pt; line-height: 89%; tab-stops: -183.0pt -153.0pt -117.0pt -81.0pt -45.0pt -24.0pt 27.0pt 63.0pt 102.0pt 124.5pt 135.0pt 171.0pt 205.5pt 228.0pt 243.0pt 279.0pt 315.0pt 351.0pt 387.0pt 423.0pt 459.0pt; text-autospace: none; font-size: 10pt">Joint Filing Agreement as required by Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, dated March 9, 2012, by and between Julian C. Baker and Felix J. Baker<BR STYLE="mso-special-character: line-break"> <BR STYLE="mso-special-character: line-break"></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-autospace: none; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-autospace: none; font-size: 10pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-autospace: none; font-size: 10pt">Exhibit 2:</TD>
    <TD STYLE="padding-right: 5.4pt; padding-bottom: 12pt; padding-left: 5.4pt; text-autospace: none; font-size: 10pt">Form of Warrant to Purchase Shares of Common Stock of Xoma Corporation (Incorporated by reference to Exhibit 4.1 to the Issuer&rsquo;s Current Report on Form 8-K (File No. 000-14710), filed with the SEC on March 7, 2012.)</TD></TR>
</TABLE>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1.5in; text-indent: -1in">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SIGNATURES</B></P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 27pt">After reasonable inquiry and to the best
of my knowledge and belief, each of the undersigned hereby certifies that the information set forth in this statement is true,
complete and correct.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 27pt">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 27pt">EXECUTED as a sealed instrument this
9<SUP>th</SUP> day of March, 2012</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/90% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 211.7pt">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 27pt">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in; text-indent: 2.5in">By:<U> /s/ Julian C. Baker</U></P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in; text-indent: 2.5in">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julian
C. Baker</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in; text-indent: 2.5in">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in; text-indent: 2.5in">By:<U> /s/ Felix J. Baker</U></P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in; text-indent: 2.5in">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Felix J. Baker</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 3in">&#9;</P>

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<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">Exhibit 1</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">JOINT FILING AGREEMENT</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Pursuant to Rule 13d-1(k)(1) under the
Securities Exchange Act of 1934, as amended, the undersigned hereby agree that only one statement containing the information required
by Schedule 13D need be filed with respect to the ownership by each of the undersigned of the shares of Common Stock of Xoma Corporation.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">This Agreement may be executed in any
number of counterparts, each of which shall be deemed an original.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">EXECUTED as of this 9<SUP>th</SUP> day of March, 2012.</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in; text-indent: 2.5in">By:<U> /s/ Julian C. Baker</U></P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in; text-indent: 2.5in">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Julian C. Baker</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in; text-indent: 2.5in">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in; text-indent: 2.5in">By:<U> /s/ Felix J. Baker</U></P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in; text-indent: 2.5in">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Felix J. Baker</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in">&nbsp;</P>

<P STYLE="font: 10pt/89% Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>



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