<SEC-DOCUMENT>0001214659-25-014813.txt : 20251009
<SEC-HEADER>0001214659-25-014813.hdr.sgml : 20251009
<ACCEPTANCE-DATETIME>20251009161511
ACCESSION NUMBER:		0001214659-25-014813
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20251009
DATE AS OF CHANGE:		20251009

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CRESCENT BIOPHARMA, INC.
		CENTRAL INDEX KEY:			0001253689
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				000000000
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-87811
		FILM NUMBER:		251385231

	BUSINESS ADDRESS:	
		STREET 1:		300 FIFTH AVENUE
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
		BUSINESS PHONE:		617-430-5595

	MAIL ADDRESS:	
		STREET 1:		300 FIFTH AVENUE
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GLYCOMIMETICS INC
		DATE OF NAME CHANGE:	20030711

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TANG CAPITAL MANAGEMENT LLC
		CENTRAL INDEX KEY:			0001232621
		ORGANIZATION NAME:           	
		EIN:				461592449
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G

	BUSINESS ADDRESS:	
		STREET 1:		4747 EXECUTIVE DRIVE
		STREET 2:		SUITE 210
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		858-200-3830

	MAIL ADDRESS:	
		STREET 1:		4747 EXECUTIVE DRIVE
		STREET 2:		SUITE 210
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13g" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>SCHEDULE 13G</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <!-- Field: Pseudo-Tag; ID: Name; Data: TANG CAPITAL MANAGEMENT LLC -->
          <cik>0001232621</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <coverPageHeader>
      <securitiesClassTitle>Ordinary Shares, $0.001 par value per share</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>10/02/2025</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0001253689</issuerCik>
        <issuerName>Crescent Biopharma, Inc.</issuerName>
        <issuerCusip>G2545C104</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>300 Fifth Avenue</com:street1>
          <com:city>Waltham</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02451</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(c)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>TANG CAPITAL MANAGEMENT, LLC</reportingPersonName>
      <citizenshipOrOrganization>DE</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>700000.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>700000.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>700000.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>5.04</classPercent>
      <typeOfReportingPerson>OO</typeOfReportingPerson>
      <comments>Tang Capital Management, LLC ("TCM") shares voting and dispositive power over such shares with Tang Capital Partners, LP ("TCP"), Tang Capital Partners International, LP ("TCPI") and Kevin Tang. The percentages used herein are based on 13,892,562 Ordinary Shares outstanding as of July 25, 2025, as set forth in the Quarterly Report filed on Form 10-Q that was filed with the Securities and Exchange Commission on July 31, 2025.</comments>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>KEVIN TANG</reportingPersonName>
      <citizenshipOrOrganization>X1</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>700000.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>700000.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>700000.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>5.04</classPercent>
      <typeOfReportingPerson>IN</typeOfReportingPerson>
      <comments>Kevin Tang shares voting and dispositive power over such shares with TCP, TCPI and TCM.</comments>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>TANG CAPITAL PARTNERS, LP</reportingPersonName>
      <citizenshipOrOrganization>DE</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>393681.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>393681.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>393681.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>2.84</classPercent>
      <typeOfReportingPerson>PN</typeOfReportingPerson>
      <comments>TCP shares voting and dispositive power over such shares with TCM and Kevin Tang.</comments>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>TANG CAPITAL PARTNERS INTERNATIONAL, LP</reportingPersonName>
      <citizenshipOrOrganization>DE</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>306319.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>306319.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>306319.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>2.20</classPercent>
      <typeOfReportingPerson>PN</typeOfReportingPerson>
      <comments>TCPI shares voting and dispositive power over such shares with TCM and Kevin Tang.</comments>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>TANG CAPITAL PARTNERS III, INC</reportingPersonName>
      <citizenshipOrOrganization>NV</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>0.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>0.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>0.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>0.0</classPercent>
      <typeOfReportingPerson>CO</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>TANG CAPITAL PARTNERS IV, INC</reportingPersonName>
      <citizenshipOrOrganization>NV</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>0.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>0.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>0.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>0.0</classPercent>
      <typeOfReportingPerson>CO</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>Crescent Biopharma, Inc.</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>300 Fifth Avenue, Waltham, MA, 02451</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>This Statement on Schedule 13G (this "Statement") is filed by TCM, the general partner of TCP and TCPI; Kevin Tang, the manager of TCM and Chief Executive Officer of Tang Capital Partners III, Inc. ("TCP III") and Tang Capital Partners IV, Inc. ("TCP IV"); TCP; TCPI; TCP III; and TCP IV.</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>The address of TCM, Kevin Tang, TCP and TCPI is 4747 Executive Drive, Suite 210, San Diego, CA 92121. The address of TCP III and TCP IV is 400 S. 4th Street, 3rd Floor, Las Vegas, NV 89101.</principalBusinessOfficeOrResidenceAddress>
        <citizenship>TCM is a Delaware limited liability company. Mr. Tang is a United States citizen. TCP and TCPI are Delaware limited partnerships. TCP III and TCP IV are Nevada corporations that are indirectly wholly owned by TCP.</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>Y</notApplicableFlag>
      </item3>
      <item4>
        <amountBeneficiallyOwned>700,000</amountBeneficiallyOwned>
        <classPercent>5.04</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>0 shares</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>700,000 shares</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>0 shares</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>700,000 shares</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>Y</notApplicableFlag>
      </item5>
      <item6>
        <notApplicableFlag>Y</notApplicableFlag>
      </item6>
      <item7>
        <notApplicableFlag>Y</notApplicableFlag>
      </item7>
      <item8>
        <notApplicableFlag>Y</notApplicableFlag>
      </item8>
      <item9>
        <notApplicableFlag>Y</notApplicableFlag>
      </item9>
      <item10>
        <notApplicableFlag>N</notApplicableFlag>
        <certifications>By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.</certifications>
      </item10>
    </items>
    <signatureInformation>
      <reportingPersonName>TANG CAPITAL MANAGEMENT, LLC</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Kevin Tang</signature>
        <title>Manager</title>
        <date>10/09/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>KEVIN TANG</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Kevin Tang</signature>
        <title>Self</title>
        <date>10/09/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>TANG CAPITAL PARTNERS, LP</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Kevin Tang</signature>
        <title>Manager, Tang Capital Management, LLC, General Partner</title>
        <date>10/09/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>TANG CAPITAL PARTNERS INTERNATIONAL, LP</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Kevin Tang</signature>
        <title>Manager, Tang Capital Management, LLC, General Partner</title>
        <date>10/09/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>TANG CAPITAL PARTNERS III, INC</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Kevin Tang</signature>
        <title>Chief Executive Officer</title>
        <date>10/09/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>TANG CAPITAL PARTNERS IV, INC</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Kevin Tang</signature>
        <title>Chief Executive Officer</title>
        <date>10/09/2025</date>
      </signatureDetails>
    </signatureInformation>
  </formData>

</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ex99_1.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><B>Exhibit&nbsp;99.1</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>JOINT FILING AGREEMENT</B></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: left; text-indent: 0.25in">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
In accordance with Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, the undersigned agree to the joint filing
of a Statement on Schedule 13G (including any and all amendments thereto) with respect to the Ordinary Shares, $0.001 par value per share,
of Crescent Biopharma, Inc. and further agree to the filing of this agreement as an exhibit thereto. In addition, each party to this
Agreement expressly authorizes each other party to this Agreement to file on its behalf any and all amendments to such Statement on Schedule
13G.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">Date: October 9, 2025</FONT></TD>
    <TD COLSPAN="3" STYLE="text-align: left"><FONT STYLE="font-size: 10pt"><B>TANG CAPITAL PARTNERS, LP</B><BR>
&nbsp;</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">By:&nbsp;&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: left"><FONT STYLE="font-size: 10pt">Tang Capital Management, LLC &nbsp;</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">Its:&nbsp;&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: left"><FONT STYLE="font-size: 10pt">General Partner&nbsp;</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; text-align: left">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">By:&nbsp;&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; text-align: left"><FONT STYLE="font-size: 10pt">/s/ Kevin Tang</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="width: 40%; text-align: left">&nbsp;</TD>
    <TD STYLE="width: 6%; text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left; width: 4%"><FONT STYLE="font-size: 10pt">Name:&nbsp;&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; width: 40%"><FONT STYLE="font-size: 10pt">Kevin Tang&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; width: 10%">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">Title:&nbsp;&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-size: 10pt">Manager&nbsp;</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR>
    <TD STYLE="vertical-align: top; text-align: left">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="text-align: left"><FONT STYLE="font-size: 10pt"><B>TANG CAPITAL PARTNERS INTERNATIONAL, LP</B><BR>
&nbsp;</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">By:&nbsp;&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: left"><FONT STYLE="font-size: 10pt">Tang Capital Management, LLC &nbsp;</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">Its:&nbsp;&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: left"><FONT STYLE="font-size: 10pt">General Partner&nbsp;</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="vertical-align: top; text-align: left">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">By:&nbsp;&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; text-align: left"><FONT STYLE="font-size: 10pt">/s/ Kevin Tang</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="width: 40%; text-align: left">&nbsp;</TD>
    <TD STYLE="width: 6%; text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left; width: 4%"><FONT STYLE="font-size: 10pt">Name:&nbsp;&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; width: 40%">Kevin Tang&nbsp;</TD>
    <TD STYLE="text-align: left; width: 10%">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">Title:&nbsp;&nbsp;&nbsp;</FONT></TD>
    <TD STYLE="text-align: left">Manager</TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR>
    <TD STYLE="vertical-align: top; text-align: left">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="text-align: left"><FONT STYLE="font-size: 10pt"><B>TANG CAPITAL PARTNERS III, INC</B><BR>
&nbsp;</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">By:&nbsp;&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; text-align: left"><FONT STYLE="font-size: 10pt">/s/ Kevin Tang</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="width: 40%; text-align: left">&nbsp;</TD>
    <TD STYLE="width: 6%; text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left; width: 4%"><FONT STYLE="font-size: 10pt">Name:&nbsp;&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; width: 40%">Kevin Tang&nbsp;</TD>
    <TD STYLE="text-align: left; width: 10%">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">Title:&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>
    <TD STYLE="text-align: left">Chief Executive Officer</TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR>
    <TD STYLE="vertical-align: top; text-align: left">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="text-align: left"><FONT STYLE="font-size: 10pt"><B>TANG CAPITAL PARTNERS IV, INC</B><BR>
&nbsp;</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">By:&nbsp;&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; text-align: left"><FONT STYLE="font-size: 10pt">/s/ Kevin Tang</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="width: 40%; text-align: left">&nbsp;</TD>
    <TD STYLE="width: 6%; text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left; width: 4%"><FONT STYLE="font-size: 10pt">Name:&nbsp;&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; width: 40%">Kevin Tang&nbsp;</TD>
    <TD STYLE="text-align: left; width: 10%">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">Title:&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>
    <TD STYLE="text-align: left">Chief Executive Officer</TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  </TABLE>
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    <TD COLSPAN="3" STYLE="vertical-align: top; text-align: left"><B>TANG CAPITAL MANAGEMENT, LLC</B><BR></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
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    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="vertical-align: top; text-align: left">&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">By:&nbsp;&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; text-align: left"><FONT STYLE="font-size: 10pt">/s/ Kevin Tang</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
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    <TD STYLE="width: 6%; text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left; width: 4%"><FONT STYLE="font-size: 10pt">Name:&nbsp;&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; width: 40%"><FONT STYLE="font-size: 10pt">Kevin Tang&nbsp;</FONT></TD>
    <TD STYLE="text-align: left; width: 10%">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">Title:&nbsp;&nbsp;</FONT></TD>
    <TD STYLE="text-align: left"><FONT STYLE="font-size: 10pt">Manager&nbsp;</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
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    <TD COLSPAN="3" STYLE="text-align: left">&nbsp;</TD>
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  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="border-bottom: Black 1pt solid; text-align: left"><FONT STYLE="font-size: 10pt">/s/ Kevin Tang</FONT></TD>
    <TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: left">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: left"><FONT STYLE="font-size: 10pt">Name:&nbsp;&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="text-align: left"><FONT STYLE="font-size: 10pt">Kevin Tang&nbsp;</FONT></TD>
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