Adrian Gottschalk - 05 Feb 2026 Form 4 Insider Report for Foghorn Therapeutics Inc. (FHTX)

Role: Chief Executive Officer, Director
Signature: /s/ Michael LaCascia, Attorney-in-Fact for Adrian Gottschalk
Issuer symbol: FHTX
Transactions as of: 05 Feb 2026
Net transactions value: +$5,622,250
Form type: 4
Filing time: 06 Feb 2026, 16:01:11 UTC
Previous filing: 28 Apr 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
GOTTSCHALK ADRIAN	Chief Executive Officer, Director	99 COOLIDGE AVENUE, SUITE 500, WATERTOWN	/s/ Michael LaCascia, Attorney-in-Fact for Adrian Gottschalk	06 Feb 2026	0001828724

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	FHTX	Stock option (right to buy)	Award	$5,622,250	+1,075,000		$5.23	1,075,000	05 Feb 2026	Common Stock	1,075,000	$5.23	Direct	F1

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

Explanation of Responses:

Id	Content
F1	The option vests as to 25% of the underlying shares of common stock on February 5, 2027, and thereafter at a rate of 6.25% of the underlying shares on the first day of each calendar quarter.