George Golumbeski - 06 Nov 2025 Form 4 Insider Report for Acumen Pharmaceuticals, Inc. (ABOS)

Role: Director
Signature: /s/ Derek Meisner, Attorney-in-Fact
Issuer symbol: ABOS
Transactions as of: 06 Nov 2025
Net transactions value: $0
Form type: 4
Filing time: 10 Nov 2025, 16:49:06 UTC
Previous filing: 31 Jul 2025
Next filing: 05 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Golumbeski George	Director	C/O ACUMEN PHARMACEUTICALS, INC., 1210-1220 WASHINGTON STREET, SUITE 210, NEWTON	/s/ Derek Meisner, Attorney-in-Fact	10 Nov 2025	0001586660

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	ABOS	Stock Option (right to buy)	Award	$0	+50,000		$0.000000	50,000	06 Nov 2025	Common Stock	50,000	$1.90	Direct	F1

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

Explanation of Responses:

Id	Content
F1	The shares subject to the option will vest in equal monthly installments over a three-year period such that the option is fully vested on the third anniversary of the date of grant, subject to the Reporting Person's continuous service through each such vesting date and shall vest and become immediately exercisable prior to the effectiveness of a change in control.