Barton Russell (CIK 1867418) reported 8 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-01-23). Recent activity: Sell ABOS (2,315 shares), Sell ABOS (462 shares), Buy ABOS (84,600 shares), Sell ABOS (3,530 shares), Sell ABOS (4,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-01-23 | Acumen Pharmaceuticals, Inc. (ABOS) | Chief Operating Officer | Sell | 2,315 | $4,190 |
| 2026-01-23 | Acumen Pharmaceuticals, Inc. (ABOS) | Chief Operating Officer | Sell | 462 | $850 |
| 2026-01-21 | Acumen Pharmaceuticals, Inc. (ABOS) | Chief Operating Officer | Buy | 84,600 | $0 |
| 2026-01-12 | Acumen Pharmaceuticals, Inc. (ABOS) | Chief Operating Officer | Sell | 3,530 | $6,566 |
| 2026-01-07 | Acumen Pharmaceuticals, Inc. (ABOS) | Chief Operating Officer | Sell | 4,000 | $7,840 |
| 2026-01-07 | Acumen Pharmaceuticals, Inc. (ABOS) | Chief Operating Officer | Sell | 3,618 | $7,127 |
| 2026-01-07 | Acumen Pharmaceuticals, Inc. (ABOS) | Chief Operating Officer | Sell | 1,700 | $3,383 |
| 2025-01-23 | Acumen Pharmaceuticals, Inc. (ABOS) | Chief Operating Officer | Sell | 2,914 | $4,692 |
Source: SEC Form 4 filings · as of 2026-01-23