<SEC-DOCUMENT>0001104659-24-105276.txt : 20241002
<SEC-HEADER>0001104659-24-105276.hdr.sgml : 20241002
<ACCEPTANCE-DATETIME>20241002105347
ACCESSION NUMBER:		0001104659-24-105276
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20241002
DATE AS OF CHANGE:		20241002
GROUP MEMBERS:		HEIGHTS CAPITAL MANAGEMENT, INC.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Theriva Biologics, Inc.
		CENTRAL INDEX KEY:			0000894158
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				133808303
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-50777
		FILM NUMBER:		241345743

	BUSINESS ADDRESS:	
		STREET 1:		9605 MEDICAL CENTER DRIVE
		STREET 2:		SUITE 270
		CITY:			ROCKVILLE
		STATE:			MD
		ZIP:			20850
		BUSINESS PHONE:		(734) 332-7800

	MAIL ADDRESS:	
		STREET 1:		9605 MEDICAL CENTER DRIVE
		STREET 2:		SUITE 270
		CITY:			ROCKVILLE
		STATE:			MD
		ZIP:			20850

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Synthetic Biologics, Inc.
		DATE OF NAME CHANGE:	20120305

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ADEONA PHARMACEUTICALS, INC.
		DATE OF NAME CHANGE:	20081027

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PIPEX PHARMACEUTICALS, INC.
		DATE OF NAME CHANGE:	20061214

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CVI Investments, Inc.
		CENTRAL INDEX KEY:			0001649553
		ORGANIZATION NAME:           	
		IRS NUMBER:				981253664
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		P.O. BOX 309
		STREET 2:		UGLAND HOUSE
		CITY:			GRAND CAYMAN
		STATE:			E9
		ZIP:			KY1-1104
		BUSINESS PHONE:		345-949-8080

	MAIL ADDRESS:	
		STREET 1:		P.O. BOX 309
		STREET 2:		UGLAND HOUSE
		CITY:			GRAND CAYMAN
		STATE:			E9
		ZIP:			KY1-1104
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>tm2425379d1_sc13g.htm
<DESCRIPTION>SC 13G
<TEXT>
<HTML>
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<P STYLE="margin: 0">&nbsp;</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CUSIP No: &nbsp;&nbsp;87164U508</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Washington, D.C. 20549</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">SCHEDULE 13G</P>

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">TO &sect; 240.13d-1(b), (c)&nbsp;AND (d)&nbsp;AND
AMENDMENTS THERETO FILED</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">PURSUANT TO &sect; 240.13d-2.</P>

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

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

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

<P STYLE="font: 14pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Theriva Biologics, Inc.</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">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Common Stock, $0.001 par value per share</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">87164U508<BR>
(CUSIP Number)</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">September&nbsp;27, 2024</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 Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Check the appropriate box to designate the rule&nbsp;pursuant
to which this Schedule is filed:</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Wingdings">&#168;</FONT>&#8239;&#8239;Rule&nbsp;13d-1(b)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Wingdings">&#120;</FONT>&#8239;Rule&nbsp;13d-1(c)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Wingdings">&#168;</FONT>&#8239;&#8239;Rule&nbsp;13d-1(d)</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">*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 the disclosures provided in a prior cover page.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The information required in the remainder of this cover page shall
not be deemed to be &ldquo;filed&rdquo; for purposes of Section 18 of the Securities Exchange Act of 1934 (&ldquo;Act&rdquo;) or otherwise
subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).</P>

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

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

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

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

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    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CUSIP No: &nbsp;&nbsp;87164U508</P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
  <TR STYLE="text-align: left; vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid">&#8239;</TD>
    <TD STYLE="border-top: Black 1pt solid; text-align: left">(1)</TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1pt solid">
    <P STYLE="margin-top: 0pt; margin-bottom: 0pt">NAMES OF REPORTING PERSONS</P>
    <P STYLE="margin-top: 0pt; margin-bottom: 0pt">&#8239;</P>
    <P STYLE="margin-top: 0pt; margin-bottom: 0pt">CVI Investments, Inc.</P>
    <P STYLE="margin-top: 0pt; margin-bottom: 0pt">&#8239;</P></TD></TR>
  <TR STYLE="text-align: left; vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid">&#8239;</TD>
    <TD STYLE="border-top: Black 1pt solid; text-align: left">(2)</TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1pt solid">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)</TD></TR>
  <TR STYLE="text-align: left; vertical-align: top">
    <TD STYLE="width: 6%">&#8239;</TD>
    <TD STYLE="text-align: left; width: 5%">&#8239;</TD>
    <TD>&#8239;</TD>
    <TD STYLE="text-align: right; width: 5%">(a)&#8239;&#8239;&#8239;&#8239;<FONT STYLE="font-family: Wingdings">&#168;</FONT></TD></TR>
  <TR STYLE="text-align: left; vertical-align: top">
    <TD>&#8239;</TD>
    <TD STYLE="text-align: left">&#8239;</TD>
    <TD>&#8239;</TD>
    <TD STYLE="text-align: right">(b)&#8239;&#8239;&#8239;&#8239;<FONT STYLE="font-family: Wingdings">&#168;</FONT></TD></TR>
  <TR STYLE="text-align: left; vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: left">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: right">&#8239;</TD></TR>
  <TR STYLE="text-align: left; vertical-align: top">
    <TD>&#8239;</TD>
    <TD STYLE="text-align: left">(3)</TD>
    <TD COLSPAN="2">SEC USE ONLY</TD></TR>
  <TR STYLE="text-align: left; vertical-align: top">
    <TD>&#8239;</TD>
    <TD STYLE="text-align: left">&#8239;</TD>
    <TD COLSPAN="2">&#8239;</TD></TR>
  <TR STYLE="text-align: left; vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; border-bottom: Black 1pt solid">&#8239;</TD>
    <TD STYLE="border-top: Black 1pt solid; border-bottom: Black 1pt solid; text-align: left">(4)</TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1pt solid; border-bottom: Black 1pt solid">
    <P STYLE="margin-top: 0pt; margin-bottom: 0pt">CITIZENSHIP OR PLACE OF ORGANIZATION</P>
    <P STYLE="margin-top: 0pt; margin-bottom: 0pt">&#8239;</P>
    <P STYLE="margin-top: 0pt; margin-bottom: 0pt">Cayman Islands</P>
    <P STYLE="margin-top: 0pt; margin-bottom: 0pt">&#8239;</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt -0.5in; text-indent: 0.5in"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="15" STYLE="border-bottom: Black 1pt solid; width: 15%">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">NUMBER OF</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#8239;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARES</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#8239;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">BENEFICIALLY</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#8239;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">OWNED BY</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#8239;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">EACH</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#8239;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">REPORTING</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#8239;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">PERSON WITH</P></TD>
    <TD STYLE="vertical-align: bottom; width: 3%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(5) </FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 82%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE VOTING POWER</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2" STYLE="border-bottom: black 1pt solid; padding-left: 0.125in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(6) </FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED VOTING POWER **</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2" STYLE="border-bottom: black 1pt solid; padding-left: 0.125in">232,237</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(7) </FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE DISPOSITIVE POWER</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2" STYLE="border-bottom: black 1pt solid; padding-left: 0.125in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(8)</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED DISPOSITIVE POWER **</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2" STYLE="border-bottom: black 1pt solid; padding-left: 0.125in">232,237</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt -0.5in; text-indent: 0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<TR STYLE="vertical-align: bottom"><TD STYLE="width: 6%">&#8239;</TD>
    <TD STYLE="font-size: 10pt; vertical-align: top; width: 5%; text-align: left">(9)</TD>
    <TD STYLE="font-size: 10pt; text-align: left">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font-size: 10pt; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="text-align: left">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font-size: 10pt; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="padding-left: 0.125in; font-size: 10pt">232,237</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font-size: 10pt; vertical-align: top; text-align: left">(10)</TD>
    <TD STYLE="font-size: 10pt; text-align: left">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font-size: 10pt; vertical-align: top; text-align: left">&#8239;</TD>
    <TD STYLE="font-size: 10pt; text-align: right"><FONT STYLE="font-family: Wingdings; font-style: normal; font-weight: normal">&#168;</FONT><FONT STYLE="font-style: normal; font-weight: normal">&#8239;</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: left">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font-size: 10pt; vertical-align: top; text-align: left">(11)</TD>
    <TD STYLE="font-size: 10pt; text-align: left">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font-size: 10pt; vertical-align: top; text-align: left">&#8239;</TD>
    <TD STYLE="font-size: 10pt; text-align: left">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font-size: 10pt; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="padding-left: 0.125in; font-size: 10pt">9.9%</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font-size: 10pt; vertical-align: top; text-align: left">(12)</TD>
    <TD STYLE="font-size: 10pt; text-align: left">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font-size: 10pt; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="padding-left: 0.125in; font-size: 10pt">CO</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font-size: 10pt">&#8239;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt">** Heights Capital Management, Inc. is the investment manager to CVI Investments,
Inc. and as such may exercise voting and dispositive power over these shares.</P>

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

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

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt">CUSIP No: &nbsp;&nbsp;87164U508</P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%">
  <TR STYLE="text-align: left; vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; font: 10pt Times New Roman, Times, Serif">&#8239;</TD>
    <TD STYLE="border-top: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left">(1)</TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1pt solid; font: 10pt Times New Roman, Times, Serif"><P STYLE="margin-top: 0; margin-bottom: 0">NAMES
                                            OF REPORTING PERSONS</P>
                                                         <P STYLE="margin-top: 0; margin-bottom: 0">&#8239;</P>
                                                         <P STYLE="margin-top: 0; margin-bottom: 0">Heights Capital Management, Inc.</P>
                                                         <P STYLE="margin-top: 0; margin-bottom: 0">&#8239;</P>
                                                         </TD></TR>
  <TR STYLE="text-align: left; vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; font: 10pt Times New Roman, Times, Serif">&#8239;</TD>
    <TD STYLE="border-top: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left">(2)</TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1pt solid; font: 10pt Times New Roman, Times, Serif">CHECK THE APPROPRIATE BOX IF A MEMBER
    OF A GROUP (SEE INSTRUCTIONS)</TD></TR>
  <TR STYLE="text-align: left; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 6%">&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; width: 5%">&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right; width: 5%">(a)&#8239;&#8239;&#8239;&#8239;<FONT STYLE="font-family: Wingdings">&#168;</FONT></TD></TR>
  <TR STYLE="text-align: left; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right">(b)&#8239;&#8239;&#8239;&#8239;<FONT STYLE="font-family: Wingdings">&#168;</FONT></TD></TR>
  <TR STYLE="text-align: left; vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: right">&#8239;</TD></TR>
  <TR STYLE="text-align: left; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">(3)</TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif">SEC USE ONLY</TD></TR>
  <TR STYLE="text-align: left; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">&#8239;</TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif">&#8239;</TD></TR>
  <TR STYLE="text-align: left; vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif">&#8239;</TD>
    <TD STYLE="border-top: Black 1pt solid; border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left">(4)</TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1pt solid; border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif"><P STYLE="margin-top: 0; margin-bottom: 0">CITIZENSHIP
                                            OR PLACE OF ORGANIZATION</P>
                                                                     <P STYLE="margin-top: 0; margin-bottom: 0">&#8239;</P>
                                                                     <P STYLE="margin-top: 0; margin-bottom: 0">Delaware</P>
                                                                     <P STYLE="margin-top: 0; margin-bottom: 0">&#8239;</P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt"></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR>
    <TD ROWSPAN="15" STYLE="border-bottom: Black 1pt solid; width: 15%">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">NUMBER OF</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#8239;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">SHARES</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#8239;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">BENEFICIALLY</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#8239;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">OWNED BY</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#8239;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">EACH</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#8239;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">REPORTING</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#8239;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">PERSON WITH</P></TD>
    <TD STYLE="vertical-align: bottom; width: 3%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(5) </FONT></TD>
    <TD STYLE="vertical-align: bottom; width: 82%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE VOTING POWER</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2" STYLE="border-bottom: black 1pt solid; padding-left: 0.125in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(6) </FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED VOTING POWER **</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2" STYLE="border-bottom: black 1pt solid; padding-left: 0.125in">232,237</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(7) </FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SOLE DISPOSITIVE POWER</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2" STYLE="border-bottom: black 1pt solid; padding-left: 0.125in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(8)</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SHARED DISPOSITIVE POWER **</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid; padding-left: 0.125in">232,237</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt"></P>

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 6%">&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 5%; text-align: left">(9)</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">AGGREGATE AMOUNT BENEFICIALLY
    OWNED BY EACH REPORTING PERSON</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="text-align: left">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="padding-left: 0.125in; font-size: 10pt">232,237</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: right">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: left">(10)</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
    SHARES (SEE INSTRUCTIONS)</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: left"></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Wingdings; font-style: normal; font-weight: normal">&#168;</FONT><FONT STYLE="font-style: normal; font-weight: normal">&#8239;</FONT></TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; text-align: left">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: left">(11)</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: left">&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="padding-left: 0.125in; font-size: 10pt">9.9%</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: right">&#8239;</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: left">(12)</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&#8239;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="padding-left: 0.125in; font-size: 10pt">CO</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1pt solid">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: top">&#8239;</TD>
    <TD STYLE="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif">&#8239;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt">** Heights Capital Management,
Inc. is the investment manager to CVI Investments, Inc. and as such may exercise voting and dispositive power over these shares.</P>

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

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

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

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

<P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif">CUSIP No: &nbsp;&nbsp;87164U508</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt">Item 1.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a)&#8239;&#8239;&#8239; Name of Issuer</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">Theriva Biologics, Inc. (the &ldquo;Company&rdquo;)</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b)&#8239;&#8239;&#8239; Address of Issuer&rsquo;s Principal Executive Offices</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">9605 Medical Center Drive, Suite 270, Rockville, MD 20850</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Item 2(a). &#8239;&#8239;&#8239; Name of Person Filing</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.35in">This statement is filed by the entities listed below, who are collectively
referred to herein as &ldquo;Reporting Persons,&rdquo; with respect to the shares of common stock of the Company, $0.001 par value per
share (the &ldquo;Shares&rdquo;).</P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 4%"></TD><TD STYLE="width: 3.5%">(i)</TD><TD STYLE="width: 92.5%">CVI Investments,&nbsp;Inc.</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 4%"></TD><TD STYLE="width: 3.5%">(ii)</TD><TD STYLE="width: 92.5%">Heights Capital Management,&nbsp;Inc.</TD></TR></TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Item 2(b). &#8239;&#8239;&#8239; Address of Principal Business Office or, if none, Residence</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">The address of the principal business office of CVI Investments,&nbsp;Inc.
is:</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">P.O.&nbsp;Box 309GT</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">Ugland House</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">South Church Street</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">George Town</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">Grand Cayman</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">KY1-1104</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">Cayman Islands</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">The address of the principal business office of Heights Capital
Management,&nbsp;Inc. is:</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">101 California Street, Suite&nbsp;3250</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">San Francisco, California 94111</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Item 2(c). &#8239;&#8239;&#8239;  Citizenship</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">Citizenship is set forth in Row 4 of the cover page&nbsp;for
each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Item 2(d) &#8239;&#8239;&#8239;  Title of Class&nbsp;of Securities</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">Common stock, $0.001 par value per share</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Item 2(e)&#8239; &#8239;&#8239;&#8239;  CUSIP Number</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.35in">87164U508</P>

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

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

<!-- Field: Page; Sequence: 4 -->
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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CUSIP No: &nbsp;&nbsp;87164U508</P>

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

<P STYLE="margin: 0"> Item 3.&#8239;&#8239;&#8239; If this statement is filed pursuant to &sect;&sect;240.13d-1(b)&nbsp;or 240.13d-2(b)&nbsp;or (c), check whether the person filing is a:</P>



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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(a)&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&#168;</FONT>&nbsp;&nbsp;&nbsp;Broker or dealer registered under Section&nbsp;15 of the
Act (15 U.S.C. 78o).</P>

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


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(b)&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&#168;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Bank as defined in Section&nbsp;3(a)(6)&nbsp;of the Act
(15 U.S.C. 78c).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(c)&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&#168;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Insurance company as defined in Section&nbsp;3(a)(19)
of the Act (15 U.S.C. 78c).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(d)&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&#168;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Investment
company registered under Section&nbsp;8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(e)&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&#168;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;An investment adviser in accordance with &sect;240.13d-1(b)(1)(ii)(E);</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(f)&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&#168;</FONT>&nbsp;&nbsp;&#8239;&nbsp;&nbsp;&nbsp;An
employee benefit plan or endowment fund in accordance with &sect;240.13d-1(b)(1)(ii)(F);</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(g)&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&#168;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A
parent holding company or control person in accordance with &sect;240.13d-1(b)(1)(ii)(G);</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(h)&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&#168;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A
savings association as defined in Section&nbsp;3(b)&nbsp;of the Federal Deposit Insurance Act (12 U.S.C. 1813);</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in">(i)&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&#168;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&#8239;A
church plan that is excluded from the definition of an investment company under Section&nbsp;3(c)(14) of the Investment Company Act of
1940 (15 U.S.C. 80a-3);</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(j)&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&#168;</FONT>&nbsp;&nbsp;&nbsp;&#8239;&nbsp;&nbsp;A non-U.S. institution in accordance with &sect;240.13d-1(b)(1)(ii)(J);</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(k)&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&#168;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Group, in accordance with Rule&nbsp;13d-1(b)(1)(ii)(K).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">If filing as a non-U.S. institution in accordance with &sect;240.13d-1(b)(1)(ii)(J),
please specify the type of institution: ________________</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Item 4.&#8239;&#8239;&#8239; Ownership</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0in; text-indent: 0.35in">Provide the following information
regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in">The information required by Items 4(a) &ndash; (c) is set
forth in Rows 5 &ndash; 11 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting
Person.</P>

<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 0.5in">The number of Shares reported as beneficially owned consists
of (i) 180,000 Shares, and (ii) Shares issuable upon the exercise of pre-funded warrants to purchase Shares (the &ldquo;Pre-Funded Warrants&rdquo;).
The Pre-Funded Warrants are not exercisable to the extent that the total number of Shares then beneficially owned by a Reporting Person
and its affiliates and any other persons whose beneficial ownership of Shares would be aggregated with such Reporting Person for purposes
of Section 13(d) of the Exchange Act, would exceed 9.99%.</P>

<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 0.5in">The Company&rsquo;s Prospectus (Registration No. 333-282024),
filed on September 27, 2024, indicates there were 2,272,462 Shares outstanding (excluding Shares underlying the Pre-Funded Warrants and
certain other warrants issued at the same time) as of the completion of the offering of the Shares referred to therein.</P>

<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 0.5in">Heights Capital Management, Inc., which serves as the investment
manager to CVI Investments, Inc., may be deemed to be the beneficial owner of all Shares owned by CVI Investments, Inc. Each of the Reporting
Persons hereby disclaims any beneficial ownership of any such Shares, except for their pecuniary interest therein.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CUSIP No: &nbsp;&nbsp;87164U508</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Item 5.&#8239;&#8239;&#8239;  Ownership of Five Percent or Less of a Class</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">If this statement is being filed to report the
fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities,
check the following: <FONT STYLE="font-family: Wingdings">&#168;</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Item 6.&#8239;&#8239;&#8239;  Ownership of More than Five Percent on Behalf of Another Person</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Not applicable.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Item 7.&#8239;&#8239;&#8239; Identification and Classification of the Subsidiary Which Acquired
the Security Being Reported on by the Parent Holding Company or Control Person</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Not applicable.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Item 8.&#8239;&#8239;&#8239; Identification and Classification of Members of the Group</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Not applicable.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Item 9.&#8239;&#8239;&#8239; Notice of Dissolution of Group</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Not applicable.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Item 10.&#8239; Certification</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">By signing below each of the undersigned certifies
that, to the best of its 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 &sect; 240.14a-11.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt -0.5in; text-indent: 0.5in">CUSIP No: &nbsp;&nbsp;87164U508</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">After reasonable inquiry and to the best of its
knowledge and belief, each of the undersigned certifies that the information with respect to it set forth in this statement is true,
complete, and correct.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Dated: October 2, 2024</P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top; text-align: left">
  <TD COLSPAN="2">CVI INVESTMENTS,&#8239;INC.</TD>
    <TD>&nbsp;</TD>
  <TD COLSPAN="2">HEIGHTS CAPITAL MANAGEMENT,&#8239;INC.</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD COLSPAN="2">&#8239;</TD>
    <TD>&nbsp;</TD>
  <TD COLSPAN="2">&#8239;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD COLSPAN="2">By: Heights Capital Management,&nbsp;Inc.</TD>
    <TD>&nbsp;</TD>
  <TD>By:</TD>
  <TD STYLE="border-bottom: Black 1pt solid">/s/ Brian Sopinsky</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD COLSPAN="2">pursuant to a Limited Power
    of Attorney, a copy of which is attached</TD>
    <TD>&nbsp;</TD>
  <TD STYLE="text-align: left; vertical-align: bottom">Name:</TD>
  <TD STYLE="text-align: left; vertical-align: bottom">Brian Sopinsky</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD COLSPAN="2">as Exhibit&nbsp;I hereto</TD>
    <TD>&nbsp;</TD>
  <TD>Title:</TD>
  <TD>Secretary</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD COLSPAN="2">&#8239;</TD>
    <TD>&nbsp;</TD>
  <TD COLSPAN="2">&#8239;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD>By:</TD>
  <TD STYLE="border-bottom: Black 1pt solid">/s/ Brian Sopinsky</TD>
    <TD>&nbsp;</TD>
  <TD COLSPAN="2">&#8239;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD>Name:</TD>
  <TD>Brian Sopinsky</TD>
    <TD>&nbsp;</TD>
  <TD COLSPAN="2">&#8239;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD>Title:</TD>
  <TD>Secretary</TD>
    <TD>&nbsp;</TD>
  <TD COLSPAN="2">&#8239;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="width: 5%">&#8239;</TD>
  <TD STYLE="width: 44%">&#8239;</TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
  <TD STYLE="width: 5%">&#8239;</TD>
  <TD STYLE="width: 44%">&#8239;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>



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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CUSIP No: &nbsp;&nbsp;87164U508</P>

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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; width: 10%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>EXHIBIT</B></FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; width: 90%"><B>DESCRIPTION</B></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD><A HREF="tm2425379d1_ex99-i.htm"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">I</FONT></A></TD>
    <TD><A HREF="tm2425379d1_ex99-i.htm">Limited Power of Attorney</A></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD><A HREF="tm2425379d1_ex99-ii.htm"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">II</FONT></A></TD>
    <TD><A HREF="tm2425379d1_ex99-ii.htm">Joint Filing Agreement</A></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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

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


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</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.I
<SEQUENCE>2
<FILENAME>tm2425379d1_ex99-i.htm
<DESCRIPTION>EXHIBIT 99.I
<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">CUSIP No: &nbsp;&nbsp;87164U508</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>Exhibit&nbsp;I</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: center"><B>LIMITED POWER OF ATTORNEY</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">THIS
LIMITED POWER OF ATTORNEY given on the 16th day of July, 2015 by CVI Investments, Inc. (hereinafter called &quot;the Company&quot;), whose
Registered Office is situated at PO Box 309GT, Ugland House, South Church Street, George Town, Grand Cayman, Cayman Islands.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">WHEREAS, by agreement dated July 16,
2015, by and between the Company and Heights Capital Management, Inc., the Company expressly authorized Heights Capital Management, Inc.
to enter into transactions in certain designated areas as defined in the Discretionary Investment Management Agreement attached hereto
marked &quot;Appendix l.&quot;</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 13.3pt; text-align: justify">NOW THIS DEED WITNESSETH that
William Walmsley, Director of the Company, hereby appoints on behalf of the Company the firm of HEIGHTS CAPITAL MANAGEMENT, INC., which
through its officers, directors and employees is hereby formally granted limited power of attorney for the purpose of entering into transactions
on behalf and for the account of the Company; and to take all actions on behalf of the Company as may be necessary to consummate such
transactions, including but not limited to making, negotiating; signing, endorsing, executing, acknowledging and delivering in the name
of the Company all applications, contracts, agreements, notes, statements, certificates, proxies and any other instruments of whatever
kind and nature as may be necessary or proper in connection with the entering into of such transactions, instructing the transfer of funds
where necessary with respect to such transactions, and performing all of the services specified under the Discretionary Investment Management
Agreement with respect to such transactions.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">IN WITNESS WHEREOF,
the Company has caused this Limited Power of Attorney to take effect on the day and year above written.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 10pt 0pt 0; text-align: justify; text-indent: 0.2pt">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD></TD><TD COLSPAN="2" STYLE="text-align: left">CVI Investments,&nbsp;Inc.</TD>
</TR><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 50%">&nbsp;</TD><TD STYLE="text-align: left; width: 3%">&nbsp;</TD><TD STYLE="text-align: justify; width: 47%">&nbsp;</TD></TR>
     <TR STYLE="vertical-align: top; text-align: justify">
<TD>&nbsp;</TD><TD STYLE="text-align: left">By:</TD><TD STYLE="border-bottom: Black 1pt solid; text-align: justify">/s/ William Walmsley</TD></TR>
     <TR STYLE="vertical-align: top; text-align: justify">
<TD>&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: justify">William Walmsley, Director</TD></TR>
     </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 193.55pt; text-align: justify; text-indent: 0.25in">&nbsp;</P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left"><B>&nbsp;</B></P>

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

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</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.II
<SEQUENCE>3
<FILENAME>tm2425379d1_ex99-ii.htm
<DESCRIPTION>EXHIBIT 99.II
<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">CUSIP No: &nbsp;&nbsp;87164U508</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">This will confirm the agreement by and among the undersigned that the
Schedule 13G filed with the Securities and Exchange Commission on or about the date hereof with respect to the beneficial ownership by
the undersigned of the shares of common stock of Theriva Biologics, Inc., $0.001 par value per share, is being filed, and all amendments
thereto will be filed, on behalf of each of the persons and entities named below in accordance with Rule 13d-1(k) under the Securities
Exchange Act of 1934, as amended. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original,
but all of which together shall constitute one and the same instrument.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Dated as of October 2, 2024</P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top; text-align: left">
<TD COLSPAN="2"><P STYLE="margin: 0pt 0; font: 10pt Times New Roman, Times, Serif">CVI INVESTMENTS,&nbsp;INC.</P></TD>
    <TD>&nbsp;</TD>
<TD COLSPAN="2">HEIGHTS CAPITAL MANAGEMENT, INC.</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
<TD COLSPAN="2">&#8239;</TD>
    <TD>&nbsp;</TD>
<TD COLSPAN="2">&#8239;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
<TD COLSPAN="2">By:Heights Capital Management,&nbsp;Inc.</TD>
    <TD>&nbsp;</TD>
<TD>By:</TD>
<TD STYLE="border-bottom: Black 1pt solid">/s/ Brian Sopinsky</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
<TD COLSPAN="2"> pursuant to a Limited Power of
Attorney</TD>
    <TD>&nbsp;</TD>
<TD STYLE="text-align: left; vertical-align: bottom">Name:</TD>
<TD STYLE="text-align: left; vertical-align: bottom">Brian Sopinsky</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
<TD COLSPAN="2">&nbsp;</TD>
    <TD>&nbsp;</TD>
<TD>Title:</TD>
<TD>Secretary</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
<TD>By:</TD>
<TD STYLE="border-bottom: Black 1pt solid">/s/ Brian Sopinsky</TD>
    <TD>&nbsp;</TD>
<TD COLSPAN="2">&#8239;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
<TD>Name:</TD>
<TD>Brian Sopinsky</TD>
    <TD>&nbsp;</TD>
<TD COLSPAN="2">&#8239;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
<TD>Title:</TD>
<TD>Secretary</TD>
    <TD>&nbsp;</TD>
<TD COLSPAN="2">&#8239;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
<TD STYLE="width: 5%">&#8239;</TD>
<TD STYLE="width: 44%">&#8239;</TD>
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<TD STYLE="width: 5%">&#8239;</TD>
<TD STYLE="width: 44%">&#8239;</TD></TR>
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