Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2026-01-26 Sale | 2026-01-28 7:50 pm | Acumen Pharmaceuticals Inc. | ABOS | Meisner Derek M Chief Legal Officer & Corp Sec | 17,756 | $3.0007 | $53,280 | 341,758 (Direct) | View |
| 2026-01-21 Sale | 2026-01-23 6:12 pm | Acumen Pharmaceuticals Inc. | ABOS | Meisner Derek M Chief Legal Officer & Corp Sec | 8,934 | $1.8716 | $16,721 | 173,999 (Direct) | View |
| 2026-01-21 Sale | 2026-01-23 6:12 pm | Acumen Pharmaceuticals Inc. | ABOS | Siemers Eric Chief Medical Officer | 3,226 | $1.8081 | $5,833 | 255,371 (Direct) | View |
| 2026-01-21 Sale | 2026-01-23 6:11 pm | Acumen Pharmaceuticals Inc. | ABOS | Zuga Matt CFO & Chief Business Officer | 4,160 | $1.8286 | $7,607 | 304,924 (Direct) | View |
| 2026-01-21 Sale | 2026-01-23 6:10 pm | Acumen Pharmaceuticals Inc. | ABOS | OConnell Daniel Joseph Chief Executive Officer | 12,035 | $1.8274 | $21,993 | 881,275 (Direct) | View |
| 2026-01-21 Sale | 2026-01-23 6:10 pm | Acumen Pharmaceuticals Inc. | ABOS | Barton Russell Chief Operating Officer | 2,777 | $1.8117 | $5,031 | 205,092 (Direct) | View |
| 2026-01-08 Sale | 2026-01-12 6:52 pm | Acumen Pharmaceuticals Inc. | ABOS | Zuga Matt CFO & Chief Business Officer | 6,888 | $1.8166 | $12,513 | 209,951 (Direct) | View |
| 2026-01-08 Sale | 2026-01-12 6:52 pm | Acumen Pharmaceuticals Inc. | ABOS | Barton Russell Chief Operating Officer | 3,530 | $1.8588 | $6,562 | 123,269 (Direct) | View |
| 2026-01-08 Sale | 2026-01-12 6:51 pm | Acumen Pharmaceuticals Inc. | ABOS | Meisner Derek M Chief Legal Officer & Corp Sec | 50,659 | $1.7978 | $91,073 | 83,800 (Direct) | View |
| 2026-01-08 Sale | 2026-01-12 6:50 pm | Acumen Pharmaceuticals Inc. | ABOS | OConnell Daniel Joseph Chief Executive Officer | 26,472 | $1.7737 | $46,954 | 593,510 (Direct) | View |
| 2026-01-07 Sale | 2026-01-09 4:39 pm | Acumen Pharmaceuticals Inc. | ABOS | Doherty James J. President and CDO | 8,167 | $1.8548 | $15,148 | 54,033 (Direct) | View |
| 2026-01-07 Sale | 2026-01-09 4:38 pm | Acumen Pharmaceuticals Inc. | ABOS | Schacterle Amy Chief Regulatory Officer | 1,097 | $1.9838 | $2,176 | 7,703 (Direct) | View |
| 2026-01-05 Sale | 2026-01-07 9:31 pm | Acumen Pharmaceuticals Inc. | ABOS | Zuga Matt CFO & Chief Business Officer | 14,905 | $1.9749 | $29,436 | 216,839 (Direct) | View |
| 2026-01-05 Sale | 2026-01-07 9:31 pm | Acumen Pharmaceuticals Inc. | ABOS | Siemers Eric Chief Medical Officer | 10,834 | $1.9639 | $21,277 | 159,464 (Direct) | View |
| 2026-01-05 Sale | 2026-01-07 9:31 pm | Acumen Pharmaceuticals Inc. | ABOS | OConnell Daniel Joseph Chief Executive Officer | 47,506 | $1.9824 | $94,176 | 619,982 (Direct) | View |
| 2026-01-05 Sale | 2026-01-07 9:30 pm | Acumen Pharmaceuticals Inc. | ABOS | Meisner Derek M Chief Legal Officer & Corp Sec | 26,668 | $1.9758 | $52,690 | 134,459 (Direct) | View |
| 2026-01-05 Sale | 2026-01-07 9:30 pm | Acumen Pharmaceuticals Inc. | ABOS | Barton Russell Chief Operating Officer | 9,318 | $1.9666 | $18,325 | 126,799 (Direct) | View |
| 2025-01-21 Sale | 2025-01-23 9:19 pm | Acumen Pharmaceuticals Inc. | ABOS | Zuga Matt CFO & Chief Business Officer | 33,266 | $1.702 | $56,620 | 231,744 (Direct) | View |
| 2025-01-21 Sale | 2025-01-23 5:18 pm | Acumen Pharmaceuticals Inc. | ABOS | OConnell Daniel Joseph Chief Executive Officer | 12,619 | $1.593 | $20,102 | 667,488 (Direct) | View |
| 2025-01-21 Sale | 2025-01-23 5:16 pm | Acumen Pharmaceuticals Inc. | ABOS | Meisner Derek M Chief Legal Officer & Corp Sec | 3,418 | $1.59 | $5,435 | 161,127 (Direct) | View |
| 2025-01-21 Sale | 2025-01-23 5:14 pm | Acumen Pharmaceuticals Inc. | ABOS | Barton Russell Chief Operating Officer | 2,914 | $1.6102 | $4,692 | 136,117 (Direct) | View |
| 2025-01-21 Sale | 2025-01-23 5:06 pm | Acumen Pharmaceuticals Inc. | ABOS | Siemers Eric Chief Medical Officer | 3,219 | $1.59 | $5,118 | 170,298 (Direct) | View |
| 2025-01-03 Sale | 2025-01-07 8:09 pm | Acumen Pharmaceuticals Inc. | ABOS | OConnell Daniel Joseph Chief Executive Officer | 47,778 | $1.8392 | $87,873 | 1,018,107 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2026-01-26 Exercise | 2026-01-28 7:50 pm | N/A 2035-01-06 | Acumen Pharmaceuticals Inc. | ABOS | Meisner Derek M Chief Legal Officer & Corp Sec | 17,756 | $0 | 341,758 (Direct) | View |
| 2026-01-26 Exercise | 2026-01-28 7:50 pm | N/A N/A | Acumen Pharmaceuticals Inc. | ABOS | Meisner Derek M Chief Legal Officer & Corp Sec | 17,756 | $1.85 | 341,758 (Direct) | View |
| 2026-01-20 Option Award | 2026-01-21 6:32 pm | N/A 2036-01-20 | Acumen Pharmaceuticals Inc. | ABOS | OConnell Daniel Joseph Chief Executive Officer | 749,800 | $0 | 1,343,310 (Direct) | View |
| 2026-01-16 Option Award | 2026-01-21 6:32 pm | N/A 2036-01-16 | Acumen Pharmaceuticals Inc. | ABOS | Zuga Matt CFO & Chief Business Officer | 247,833 | $0 | 457,784 (Direct) | View |
| 2026-01-16 Option Award | 2026-01-21 6:31 pm | N/A 2036-01-16 | Acumen Pharmaceuticals Inc. | ABOS | Meisner Derek M Chief Legal Officer & Corp Sec | 247,833 | $0 | 331,633 (Direct) | View |
| 2026-01-16 Option Award | 2026-01-21 6:31 pm | N/A 2036-01-16 | Acumen Pharmaceuticals Inc. | ABOS | Siemers Eric Chief Medical Officer | 247,833 | $0 | 407,297 (Direct) | View |
| 2026-01-16 Option Award | 2026-01-21 6:30 pm | N/A 2036-01-16 | Acumen Pharmaceuticals Inc. | ABOS | Barton Russell Chief Operating Officer | 211,500 | $0 | 334,769 (Direct) | View |
| 2026-01-16 Option Award | 2026-01-21 6:29 pm | N/A 2036-01-16 | Acumen Pharmaceuticals Inc. | ABOS | Schacterle Amy Chief Regulatory Officer | 211,500 | $0 | 219,203 (Direct) | View |
| 2026-01-16 Option Award | 2026-01-21 6:29 pm | N/A 2036-01-16 | Acumen Pharmaceuticals Inc. | ABOS | Doherty James J. President and CDO | 417,167 | $0 | 471,200 (Direct) | View |
| 2025-11-06 Option Award | 2025-11-10 4:49 pm | N/A 2035-11-06 | Acumen Pharmaceuticals Inc. | ABOS | Golumbeski George Director | 50,000 | $0 | 50,000 (Direct) | View |
| 2025-06-04 Option Award | 2025-06-05 6:12 pm | N/A 2035-06-04 | Acumen Pharmaceuticals Inc. | ABOS | RA CAPITAL MANAGEMENT L.P. RA Capital Healthcare Fund LP RA Capital Nexus Fund II L.P. Kolchinsky Peter Shah Rajeev M. Director 10% Owner | 32,300 | $0 | 14,964,363 (Indirect) | View |
| 2025-06-04 Option Award | 2025-06-05 6:05 pm | N/A 2035-06-04 | Acumen Pharmaceuticals Inc. | ABOS | Stoppel Laura Director | 32,300 | $0 | 32,300 (Direct) | View |
| 2025-06-04 Option Award | 2025-06-05 4:59 pm | N/A 2035-06-04 | Acumen Pharmaceuticals Inc. | ABOS | Stalfort John A III Director | 32,300 | $0 | 204,624 (Direct) | View |
| 2025-06-04 Option Award | 2025-06-05 4:57 pm | N/A 2035-06-04 | Acumen Pharmaceuticals Inc. | ABOS | Fountain Nathan B Director | 32,300 | $0 | 38,550 (Direct) | View |
| 2025-06-04 Option Award | 2025-06-05 4:57 pm | N/A 2035-06-04 | Acumen Pharmaceuticals Inc. | ABOS | Drapkin Kimberlee C Director | 32,300 | $0 | 32,300 (Direct) | View |
| 2025-06-04 Option Award | 2025-06-05 4:52 pm | N/A 2035-06-04 | Acumen Pharmaceuticals Inc. | ABOS | Ives Jeffrey L. Director | 32,300 | $0 | 32,300 (Direct) | View |
| 2025-06-04 Option Award | 2025-06-05 4:51 pm | N/A 2035-06-04 | Acumen Pharmaceuticals Inc. | ABOS | Porter Derrell Director | 32,300 | $0 | 32,300 (Direct) | View |
| 2025-01-07 Option Award | 2025-01-07 8:09 pm | N/A 2035-01-07 | Acumen Pharmaceuticals Inc. | ABOS | OConnell Daniel Joseph Chief Executive Officer | 563,400 | $0 | 1,018,107 (Direct) | View |
| 2025-01-06 Option Award | 2025-01-07 8:02 pm | N/A 2035-01-06 | Acumen Pharmaceuticals Inc. | ABOS | Schacterle Amy Chief Regulatory Officer | 22,000 | $0 | 22,000 (Direct) | View |