Siemers Eric
SEC CIK 1866239 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| ABOS | Acumen Pharmaceuticals, Inc. | Chief Medical Off | 256.3K | — | $63.9K | 9 | 2023-01-17 | 2026-01-21 |
Most active insiders at ABOS, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Meisner Derek M | CLO, Corp Sec | — | $248.8K |
| 2 | OConnell Daniel Joseph | CEO, Dir | — | $163.2K |
| 3 | Porter Derrell | Dir | — | $75.2K |
| 4 | Zuga Matt | CFO, Chief Business Off | — | $49.6K |
| 5 | Barton Russell | COO | — | $30.0K |
| 6 | Siemers Eric | Chief Medical Off | — | $27.1K |
| 7 | Doherty James J. | Pres, CDO | — | $15.2K |
| 8 | Fountain Nathan B | Dir | — | $14.3K |
| 9 | Schacterle Amy | Chief Regulatory Off | — | $2,172 |
| 10 | Stoppel Laura | Dir | — | — |
Transactions 9
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M | 2026-01-23 | 2026-01-21+ | ABOS | Acumen Pharmaceuticals, Inc. | Siemers Eric | Chief Medical Off | S - Sale | $1.81 | -3,226 | 256.3K | -1% | -$5,825 |
| D | 2026-01-21 | 2026-01-16 | ABOS | Acumen Pharmaceuticals, Inc. | Siemers Eric | Chief Medical Off | A - Grant | $0.00 | +99.1K | 258.6K | +62% | $0 |
| M | 2026-01-07 | 2026-01-05+ | ABOS | Acumen Pharmaceuticals, Inc. | Siemers Eric | Chief Medical Off | S - Sale | $1.97 | -10.8K | 166.3K | -6% | -$21.3K |
| 2025-01-23 | 2025-01-21 | ABOS | Acumen Pharmaceuticals, Inc. | Siemers Eric | Chief Medical Off | S - Sale | $1.59 | -3,219 | 170.3K | -2% | -$5,118 | |
| D | 2025-01-07 | 2025-01-03 | ABOS | Acumen Pharmaceuticals, Inc. | Siemers Eric | Chief Medical Off | S - Sale | $1.85 | -10.9K | 106.7K | -9% | -$20.1K |
| D | 2025-01-07 | 2025-01-06 | ABOS | Acumen Pharmaceuticals, Inc. | Siemers Eric | Chief Medical Off | A - Grant | $0.00 | +66.8K | 173.5K | +63% | $0 |
| 2024-01-19 | 2024-01-18 | ABOS | Acumen Pharmaceuticals, Inc. | Siemers Eric | Chief Medical Off | S - Sale | $3.71 | -3,124 | 117.6K | -3% | -$11.6K | |
| D | 2024-01-04 | 2024-01-02 | ABOS | Acumen Pharmaceuticals, Inc. | Siemers Eric | Chief Medical Off | A - Grant | $0.00 | +94.0K | 120.7K | +352% | $0 |
| D | 2023-01-18 | 2023-01-17 | ABOS | Acumen Pharmaceuticals, Inc. | Siemers Eric | Chief Medical Off | A - Grant | $0.00 | +26.7K | 26.7K | New | $0 |
Purchase Sale Sale after option exercise All abbreviations