    <SEC-DOCUMENT>0001193125-21-286877-index.html : 20210929
    <SEC-HEADER>0001193125-21-286877.hdr.sgml : 20210929
    <ACCEPTANCE-DATETIME>20210929171031
    ACCESSION NUMBER:		0001193125-21-286877
    CONFORMED SUBMISSION TYPE:	424B3
    PUBLIC DOCUMENT COUNT:		27
    FILED AS OF DATE:		20210929
    DATE AS OF CHANGE:		20210929

    FILER:

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

    	FILING VALUES:
    		FORM TYPE:		424B3
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-259448
    		FILM NUMBER:		211292648

    	BUSINESS ADDRESS:
    		STREET 1:		100 BINNEY ST
    		STREET 2:		SUITE 700
    		CITY:			CAMBRIDGE
    		STATE:			MA
    		ZIP:			02142
    		BUSINESS PHONE:		(857) 320-4900

    	MAIL ADDRESS:
    		STREET 1:		100 BINNEY ST
    		STREET 2:		SUITE 700
    		CITY:			CAMBRIDGE
    		STATE:			MA
    		ZIP:			02142

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	BCTG Acquisition Corp.
    		DATE OF NAME CHANGE:	20200723
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>424B3
    <SEQUENCE>1
    <FILENAME>d118907d424b3.htm
    <DESCRIPTION>424B3
    <TEXT>
    Document 1 - file: d118907d424b3.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g118907g01q37.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g118907g01q37.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g118907g06w69.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g118907g06w69.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g118907g71e01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g118907g71e01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>g118907g72r02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: g118907g72r02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g118907g73t03.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g118907g73t03.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g118907g74y04.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g118907g74y04.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>g118907g76u05.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: g118907g76u05.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>g118907g77i06.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: g118907g77i06.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>g118907g78o07.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: g118907g78o07.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>g118907g79p08.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: g118907g79p08.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>g118907g79s09.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: g118907g79s09.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>g118907g80a10.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: g118907g80a10.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>g118907g81d11.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: g118907g81d11.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>g118907g81f12.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: g118907g81f12.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>g118907g82g13.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: g118907g82g13.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>g118907g82h14.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: g118907g82h14.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>g118907g82j15.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: g118907g82j15.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>g118907g83k16.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: g118907g83k16.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>g118907g83l17.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 20 - file: g118907g83l17.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>g118907g84x18.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 21 - file: g118907g84x18.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>g118907g84z19.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 22 - file: g118907g84z19.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>g118907g85c20.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 23 - file: g118907g85c20.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>g118907g85v21.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 24 - file: g118907g85v21.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>g118907g86m23.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 25 - file: g118907g86m23.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>g118907g86n22.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 26 - file: g118907g86n22.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>g118907g87b23.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 27 - file: g118907g87b23.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>