<SEC-DOCUMENT>0000935836-24-000649-index.html : 20241108
<SEC-HEADER>0000935836-24-000649.hdr.sgml : 20241108
<ACCEPTANCE-DATETIME>20241108192448
ACCESSION NUMBER:		0000935836-24-000649
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20241106
FILED AS OF DATE:		20241108
DATE AS OF CHANGE:		20241108

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EcoR1 Capital, LLC
		CENTRAL INDEX KEY:			0001587114
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39485
		FILM NUMBER:		241442508

	BUSINESS ADDRESS:	
		STREET 1:		357 TEHAMA STREET #3
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94103
		BUSINESS PHONE:		415-448-6534

	MAIL ADDRESS:	
		STREET 1:		357 TEHAMA STREET #3
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94103

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Tango Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001819133
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				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>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
Document 1 - file: ownership.html

Document 1 - RAW XML: ownership.xml

</DOCUMENT>
</SEC-DOCUMENT>