4
Changes in Ownership
Acumen Pharmaceuticals, Inc. Filed Acc 0001628280-26-003948
Chief Legal Officer & Corp Sec sold 17,756 shares at an average $3.00 ($53,280)
- Chief Legal Officer & Corp Sec acquired 17,756 shares (option exercise)
- Traded under a Rule 10b5-1 plan
From the SEC's structured data for this filing
Trades in this filing
| Insider | Date | Transaction | Shares | Price | Value | Owned after | D/I |
|---|---|---|---|---|---|---|---|
| Meisner Derek M Chief Legal Officer & Corp Sec | 2026-01-26 | Option exercise 10b5-1 | +15,085 | $1.85 | $27,907 | 189,084 | D |
| Meisner Derek M Chief Legal Officer & Corp Sec | 2026-01-26 | Sale 10b5-1 | −15,085 | $3.00 | $45,263 | 173,999 | D |
| Meisner Derek M Chief Legal Officer & Corp Sec | 2026-01-28 | Option exercise 10b5-1 | +2,671 | $1.85 | $4,941 | 176,670 | D |
| Meisner Derek M Chief Legal Officer & Corp Sec | 2026-01-28 | Sale 10b5-1 | −2,671 | $3.00 | $8,017 | 173,999 | D |
| Derivatives | |||||||
| Meisner Derek M Chief Legal Officer & Corp Sec | 2026-01-26 | Option exercise · Employee Stock Option (right to buy) 10b5-1 | −15,085 | 85,215 | D | ||
| Meisner Derek M Chief Legal Officer & Corp Sec | 2026-01-28 | Option exercise · Employee Stock Option (right to buy) 10b5-1 | −2,671 | 82,544 | D | ||
| Open-market sales · 17,756 sh · avg $3.00 · $53,280 | |||||||
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