<SEC-DOCUMENT>0001193125-26-004401.txt : 20260106
<SEC-HEADER>0001193125-26-004401.hdr.sgml : 20260106
<ACCEPTANCE-DATETIME>20260106160512
ACCESSION NUMBER:		0001193125-26-004401
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20260102
FILED AS OF DATE:		20260106
DATE AS OF CHANGE:		20260106

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lee Sung
		CENTRAL INDEX KEY:			0001793200
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39485
		FILM NUMBER:		26511401

	MAIL ADDRESS:	
		STREET 1:		7000 MARINA BLVD
		CITY:			BRISBANE
		STATE:			CA
		ZIP:			94005

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Tango Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001819133
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		201 BROOKLINE AVENUE
		STREET 2:		SUITE 901
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02215
		BUSINESS PHONE:		(857) 320-4900

	MAIL ADDRESS:	
		STREET 1:		201 BROOKLINE AVENUE
		STREET 2:		SUITE 901
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02215

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BCTG Acquisition Corp.
		DATE OF NAME CHANGE:	20200723
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>ownership.xml
<DESCRIPTION>3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2026-01-02</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001819133</issuerCik>
        <issuerName>Tango Therapeutics, Inc.</issuerName>
        <issuerTradingSymbol>TNGX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001793200</rptOwnerCik>
            <rptOwnerName>Lee Sung</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TANGO THERAPEUTICS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>201 BROOKLINE AVE., SUITE 901</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02215</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks>Exhibit 24: Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Julie Fogarty, as attorney-in-fact</signatureName>
        <signatureDate>2026-01-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>tngx-ex24.htm
<DESCRIPTION>EX-24
<TEXT>
<!-- DFIN ActiveDisclosure (SM) HTML Document - http://www.dfinsolutions.com/ --><!-- Creation Date :2026-01-06T14:09:03.4347+00:00 --><!-- Copyright (c) 2026 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
<html>
 <head>
  <title>EX-24</title>
 </head>
 <body style="padding:8px;margin:auto!important;z-index:0;-webkit-text-size-adjust:100%;position:relative;">
  <div style="padding-top:0.5in;z-index:2;min-height:1in;position:relative;box-sizing:border-box;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;margin-left:0;margin-right:0;"><font style="white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p></div>
  <div class="main-content-container" style="z-index:5;position:relative;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:12pt;text-align:center;"><font style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">POWER OF ATTORNEY</font></p><p style="text-indent:5.84%;font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:12pt;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">Know all by these presents, that the undersigned hereby constitutes and appoints each of Barbara Weber, Daniella Beckman and Julie Fogarty, signing singly, the undersigned&#x2019;s true and lawful attorney-in-fact to:</font></p><div class="item-list-element-wrapper" style="margin-left:4.537%;display:flex;margin-top:0;justify-content:flex-start;align-items:baseline;margin-bottom:0;min-width:6.667%;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:6.983857620229827%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">(1)</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">execute for and on behalf of the undersigned, in the undersigned&#x2019;s capacity as an officer and/or director of Tango Therapeutics, Inc. (the &#x201c;</font><font style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">Company</font><font style="color:#000000;white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#x201d;), (i) Form ID, including any attached documents, to effect the assignment of codes to the undersigned to be used in the transmission of information to the United States Securities and Exchange Commission using the EDGAR System, (ii) Forms 3, 4 and 5, (iii) Schedule 13D, (iv) Schedule 13G and (v) amendments of each thereof, in accordance with Section 16(a) of the Securities Exchange Act of 1934, as amended, and the rules thereunder;</font></div></div><div class="item-list-element-wrapper" style="margin-left:4.537%;display:flex;margin-top:12pt;justify-content:flex-start;align-items:baseline;margin-bottom:0;min-width:6.667%;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:6.983857620229827%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">(2)</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4 or 5, Schedule 13D.  Schedule 13G or any amendments thereto and timely file such form with the United States Securities and Exchange Commission and any stock exchange or similar authority; and</font></div></div><div class="item-list-element-wrapper" style="margin-left:4.537%;display:flex;margin-top:12pt;justify-content:flex-start;align-items:baseline;margin-bottom:0;min-width:6.667%;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:6.983857620229827%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">(3)</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact&#x2019;s discretion.</font></div></div><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="text-indent:5.84%;font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:12pt;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact&#x2019;s substitute or substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted, the undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned&#x2019;s responsibilities to comply with Section 16 or Regulation 13D-G of the Securities Exchange Act of 1934, as amended.  The undersigned hereby agrees to indemnify the attorney-in-fact and the Company from and against any demand, damage, loss, cost or expense arising from any false or misleading information provided by the undersigned to the attorney-in-fact.</font></p><p style="text-indent:5.84%;font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:12pt;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4 and 5 with respect to the undersigned&#x2019;s holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.  This Power of Attorney may be filed</font><font style="color:#000000;white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;"> </font></p></div>
  <div style="z-index:2;flex-direction:column;display:flex;padding-bottom:0.5in;min-height:1in;justify-content:flex-end;position:relative;box-sizing:border-box;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;margin-left:0;margin-right:0;"><font style="white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p></div>
  <hr style="margin-inline-start:auto;margin-inline-end:auto;page-break-after:always;">
  <div style="padding-top:0.5in;z-index:2;min-height:1in;position:relative;box-sizing:border-box;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;margin-left:0;margin-right:0;"><font style="white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p></div>
  <div class="main-content-container" style="z-index:5;position:relative;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:12pt;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">with the United States Securities and Exchange Commission as a confirming statement of the authority granted herein.  This Power of Attorney supersedes any prior power of attorney in connection with the undersigned&#x2019;s capacity as an officer and/or director of the Company, this Power of Attorney shall expire as to any individual attorney-in-fact if such attorney-in-fact ceases to be an executive officer of the Company.</font></p><p style="text-indent:5.84%;font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:12pt;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 2</font><font style="color:#000000;white-space:pre-wrap;vertical-align:super;font-size:8.040000000000001pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">nd</font><font style="color:#000000;white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;"> day of January, 2026.</font></p><p style="text-indent:5.84%;font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:12pt;text-align:left;"><font style="white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="text-indent:5.84%;font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:12pt;text-align:left;"><font style="white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p>
   <table style="margin-left:auto;border-spacing:0;table-layout:auto;width:100.0%;border-collapse:separate;margin-right:auto;">
    <tr style="visibility:collapse;">
     <td style="width:41%;box-sizing:content-box;"></td>
     <td style="width:59%;box-sizing:content-box;"></td>
    </tr>
    <tr style="height:12pt;word-break:break-word;white-space:pre-wrap;">
     <td style="padding-top:0.01in;padding-left:0in;vertical-align:top;padding-bottom:0in;border-bottom:0.5pt solid;padding-right:0.01in;"><p style="font-size:12pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-kerning:none;min-width:fit-content;">/s/ Sung Lee</font></p></td>
     <td style="padding-top:0.01in;padding-left:0in;vertical-align:top;padding-bottom:0in;border-bottom:0.5pt solid #ffffff03;padding-right:0.01in;"><p style="font-size:12pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-kerning:none;min-width:fit-content;">&#160;</font></p></td>
    </tr>
    <tr style="height:12pt;word-break:break-word;white-space:pre-wrap;">
     <td style="padding-top:0.01in;padding-left:0in;vertical-align:top;padding-bottom:0in;padding-right:0.01in;"><p style="font-size:12pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-kerning:none;min-width:fit-content;">Name: Sung Lee</font></p></td>
     <td style="padding-top:0.01in;padding-left:0in;vertical-align:top;padding-bottom:0in;padding-right:0.01in;"><p style="font-size:12pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-kerning:none;min-width:fit-content;">&#160;</font></p></td>
    </tr>
   </table><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p></div>
  <div style="z-index:2;flex-direction:column;display:flex;padding-bottom:0.5in;min-height:1in;justify-content:flex-end;position:relative;box-sizing:border-box;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;margin-left:0;margin-right:0;"><font style="white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p></div>
  <hr style="margin-inline-start:auto;margin-inline-end:auto;page-break-after:always;">
 </body>
</html>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
