Fountain Nathan B
SEC CIK 1869596 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| ABOS | Acumen Pharmaceuticals, Inc. | Dir | 48.1K | $100.0K | $14.3K | 4 | 2021-07-06 | 2026-06-09 |
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 4
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-06-10 16:51 | 2026-06-09 | ABOS | Acumen Pharmaceuticals, Inc. | Fountain Nathan B | Dir | S - Sale | $2.23 | -6,400 | 48.1K | -12% | -$14.3K | |
| D | 2026-06-05 16:32 | 2026-06-03 | ABOS | Acumen Pharmaceuticals, Inc. | Fountain Nathan B | Dir | A - Grant | $0.00 | +35.5K | 54.5K | +186% | $0 |
| D | 2025-06-05 | 2025-06-04 | ABOS | Acumen Pharmaceuticals, Inc. | Fountain Nathan B | Dir | A - Grant | $0.00 | +12.8K | 19.1K | +205% | $0 |
| 2021-07-08 | 2021-07-06 | ABOS | Acumen Pharmaceuticals, Inc. | Fountain Nathan B | Dir | P - Purchase | $16.00 | +6,250 | 6,250 | New | +$100.0K |
Purchase Sale Sale after option exercise All abbreviations