Companies / Acumen Pharmaceuticals, Inc. / Activity
Activity — Acumen Pharmaceuticals, Inc.
71 moves.
Top impactInsider · CEO movesInsider · biggest buysInsider · biggest sellsInstitution · biggest movesInstitution · new positions
| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Jun 3, 2026 | RA Capital Management, L.P. Director | Grant | Common Stock | $0 | +36K +277.34% | 48,300 0.07% of shares | low |
| Jan 16, 2026 | Zuga Matt Executive | Grant | Common Stock | $0 | +99K +47.22% | 309,084 0.43% of shares | low |
| Jan 16, 2026 | Meisner Derek M Executive | Grant | Common Stock | $0 | +99K +118.30% | 182,933 0.25% of shares | low |
| Jan 20, 2026 | OConnell Daniel Joseph CEO | Grant | Common Stock | $0 | +300K +50.51% | 893,310 1.24% of shares | low |
| Jan 16, 2026 | Siemers Eric Executive | Grant | Common Stock | $0 | +99K +62.17% | 258,597 0.36% of shares | low |
| Jan 16, 2026 | Barton Russell Executive | Grant | Common Stock | $0 | +85K +68.63% | 207,869 0.29% of shares | low |
| Jan 16, 2026 | Schacterle Amy Executive | Grant | Common Stock | $0 | +85K +1098.27% | 92,303 0.13% of shares | low |
| Jan 16, 2026 | Doherty James J. Executive | Grant | Common Stock | $0 | +167K +308.82% | 220,900 0.31% of shares | low |
| Jun 3, 2026 | Drapkin Kimberlee C Director | Grant | Stock Option (right to buy) | — | +53K | 53,250 0.07% of shares | low |
| Jun 3, 2026 | RA Capital Management, L.P. Director | Grant | Stock Option (Right to Buy) | — | +53K | 53,250 0.07% of shares | low |
| Jan 16, 2026 | Zuga Matt Executive | Grant | Employee Stock Option (right to buy) | — | +149K | 148,700 0.21% of shares | low |
| Mar 6, 2026 | Meisner Derek M Executive | Exercise | Employee Stock Option (right to buy) | — | -2K -2.86% | 71,048 0.10% of shares | low |
| Feb 27, 2026 | Meisner Derek M Executive | Exercise | Employee Stock Option (right to buy) | — | -9K -11.40% | 73,138 0.10% of shares | low |
| Jan 28, 2026 | Meisner Derek M Executive | Exercise | Employee Stock Option (right to buy) | — | -3K -3.13% | 82,544 0.11% of shares | low |
| Jan 26, 2026 | Meisner Derek M Executive | Exercise | Employee Stock Option (right to buy) | — | -15K -15.04% | 85,215 0.12% of shares | low |
| Jan 16, 2026 | Meisner Derek M Executive | Grant | Employee Stock Option (right to buy) | — | +149K | 148,700 0.21% of shares | low |
| Jan 20, 2026 | OConnell Daniel Joseph CEO | Grant | Employee Stock Option (right to buy) | — | +450K | 450,000 0.62% of shares | low |
| Jan 16, 2026 | Siemers Eric Executive | Grant | Employee Stock Option (right to buy) | — | +149K | 148,700 0.21% of shares | low |
| Jan 16, 2026 | Barton Russell Executive | Grant | Employee Stock Option (right to buy) | — | +127K | 126,900 0.18% of shares | low |
| Jan 16, 2026 | Schacterle Amy Executive | Grant | Employee Stock Option (right to buy) | — | +127K | 126,900 0.18% of shares | low |
| Jan 16, 2026 | Doherty James J. Executive | Grant | Employee Stock Option (right to buy) | — | +250K | 250,300 0.35% of shares | low |