Sung Lee - 02 Jan 2026 Form 4 Insider Report for Tango Therapeutics, Inc. (TNGX)

Role: Director
Signature: /s/ Julie Fogarty, as attorney-in-fact
Issuer symbol: TNGX
Transactions as of: 02 Jan 2026
Net transactions value: $0
Form type: 4
Filing time: 06 Jan 2026, 16:10:04 UTC
Previous filing: 29 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Lee Sung	Director	C/O TANGO THERAPEUTICS, INC., 201 BROOKLINE AVE., SUITE 901, BOSTON	/s/ Julie Fogarty, as attorney-in-fact	06 Jan 2026	0001793200

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TNGX	Common Stock	Award	$0	+10,000		$0.000000	10,000	02 Jan 2026	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	TNGX	Stock Option (Right to Buy)	Award	$0	+60,000		$0.000000	60,000	02 Jan 2026	Common Stock	60,000	$8.93	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	These shares are represented by restricted stock units (the "RSUs"). Each RSU represents a contingent right to receive one share of Common Stock of the Issuer. The RSUs will vest in three substantially equal annual installments following the grant date, subject to the Reporting Person's continuous service with the Issuer as of each such vesting date.
F2	This option shall vest and become exercisable in 36 substantially equal monthly installments over a period of three years following the grant date, subject to the Reporting Person's continuous service with the Issuer as of each such vesting date.