Form 4 for ABOS Acumen Pharmaceuticals, Inc.
Accepted 2026-01-21 00:00:00 ET · period of report 2026-01-16 · accession 0001628280-26-002960 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-01-21 | 2026-01-16 | ABOS | Meisner Derek M | CLO, Corp Sec | A - Grant | $0.00 | +99.1K | 182.9K | +118% | $0 |
| D | 2026-01-21 | 2026-01-16 | ABOS | Meisner Derek M | CLO, Corp Sec | A - Grant | $0.00 | +148.7K | 148.7K | New | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-01-16 | A | A | 99,133 | $0.00 | 182,933 | D | — | — | (F1) Represents a restricted stock unit ("RSU") award. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest in three equal annual installments commencing one year after the grant date, subject to the Reporting Person's continuous service through each such vesting date. |
| 2 | Derivative | Employee Stock Option (right to buy) | 2026-01-16 | A | A | 148,700 | $0.00 | 148,700 | D | $1.89 · — to 2036-01-16 | 148,700 Common Stock | (F2) The shares subject to the option will vest in 48 equal monthly installments such that the option is fully vested on the fourth anniversary of the date of grant, subject to the Reporting Person's continuous service through each such vesting date. |