| 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 | 2025-11-10 | 0001586660 |
| 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 | +50K | $0.00 | 50K | Nov 6, 2025 | Common Stock | 50K | $1.90 | Direct | F1 |
| 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. |