Third Rock Ventures IV, L.P. - Nov 19, 2025 SCHEDULE 13D/A Report for Tango Therapeutics, Inc. Common Stock (TNGX)

Filing Manager
Third Rock Ventures IV, L.P.
Reporting Manager
Third Rock Ventures IV, L.P.
Security
Tango Therapeutics, Inc. Common Stock
Symbol
TNGX
Shares outstanding
135M shares
Disclosed Ownership
7.87M shares
Ownership
5.85%
Form type
SCHEDULE 13D/A
Date filed
11/21/2025, 04:15 PM
Date of event
Nov 19, 2025
Previous filing
Nov 14, 2025
SEC
View on sec.gov

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Third Rock Ventures IV, L.P. 5.85% 7.87M 0 7.87M /s/ Kevin Gillis Kevin Gillis, COO of TRV GP IV, LLC, the general partner of Third Rock Ventures GP IV, L.P., the general partner of Third Rock Ventures IV, L.P. 0001688327
Third Rock Ventures GP IV, L.P. 5.85% 7.87M 0 7.87M /s/ Kevin Gillis Kevin Gillis, COO of TRV GP IV, LLC, the general partner of Third Rock Ventures GP IV, L.P. 0001688326
TRV GP IV, LLC 5.85% 7.87M 0 7.87M /s/ Kevin Gillis Kevin Gillis, COO 0001688325