19 insiders reported 89 Form 4 transactions for Acumen Pharmaceuticals, Inc. (ABOS) over the past 18 months (most recent 2026-06-17). Recent activity: Porter Derrell (Director) Buy 6,460 shares, Porter Derrell (Director) Sell 6,460 shares, Porter Derrell (Director) Sell 12,800 shares, Porter Derrell (Director) Buy 13,040 shares, Porter Derrell (Director) Sell 13,040 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-17 | Porter Derrell | Director | Buy | 6,460 | $6,912 |
| 2026-06-17 | Porter Derrell | Director | Sell | 6,460 | $15,181 |
| 2026-06-17 | Porter Derrell | Director | Sell | 12,800 | $29,824 |
| 2026-06-17 | Porter Derrell | Director | Buy | 13,040 | $13,953 |
| 2026-06-17 | Porter Derrell | Director | Sell | 13,040 | $30,383 |
| 2026-06-10 | Fountain Nathan B | Director | Sell | 6,400 | $14,272 |
| 2026-06-05 | Stoppel Laura | Director | Buy | 35,500 | $0 |
| 2026-06-05 | Drapkin Kimberlee C | Director | Buy | 35,500 | $0 |
| 2026-06-05 | Golumbeski George | Director | Buy | 35,500 | $0 |
| 2026-06-05 | Stalfort John A III | Director | Buy | 35,500 | $0 |
| 2026-06-05 | Fountain Nathan B | Director | Buy | 35,500 | $0 |
| 2026-06-05 | Porter Derrell | Director | Buy | 35,500 | $0 |
| 2026-06-05 | Ives Jeffrey L. | Director | Buy | 35,500 | $0 |
| 2026-06-05 | RA Capital Healthcare Fund LP | Director | Buy | 35,500 | $0 |
| 2026-06-05 | RA CAPITAL MANAGEMENT, L.P. | Director | Buy | 35,500 | $0 |
| 2026-06-05 | Kolchinsky Peter | Director | Buy | 35,500 | $0 |
| 2026-06-05 | Shah Rajeev M. | Director | Buy | 35,500 | $0 |
| 2026-06-05 | RA Capital Nexus Fund II, L.P. | Director | Buy | 35,500 | $0 |
| 2026-03-18 | RA Capital Healthcare Fund LP | Director | Buy | 6.1M | $20.0M |
| 2026-03-18 | RA CAPITAL MANAGEMENT, L.P. | Director | Buy | 6.1M | $20.0M |
| 2026-03-18 | Kolchinsky Peter | Director | Buy | 6.1M | $20.0M |
| 2026-03-18 | Shah Rajeev M. | Director | Buy | 6.1M | $20.0M |
| 2026-03-18 | RA Capital Nexus Fund II, L.P. | Director | Buy | 6.1M | $20.0M |
| 2026-03-10 | Meisner Derek M | Chief Legal Officer & Corp Sec | Buy | 2,090 | $3,866 |
| 2026-03-10 | Meisner Derek M | Chief Legal Officer & Corp Sec | Sell | 2,090 | $6,813 |
来源：SEC Form 4 申报文件 · 截至 2026-06-17