Senior insider sale
Chief Medical Officer at ACUMEN PHARMACEUTICALS, INC. — senior position signals high conviction
$25.5K
13.16K shares
What this filing means
SIEMERS ERIC plans to sell 13.16K shares of ACUMEN PHARMACEUTICALS, INC. valued at approximately $25.5K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 1/21/2026ACC: 0001964306-26-000051
Officer· Chief Medical Officer
Since Jun 2021
13.16K
Shares to sell
$25.5K
Approx. market value
2.33K
Acquired (3 months)
1
Planned
2 completed
Securities Acquired — Last 3 Months1
Vesting of restricted stock unit award
Granted as part of issuer equity compensation plan
1/17/2026
2.33KTotal acquired2.33K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
1/17/2026 | Vesting of restricted stock unit award Granted as part of issuer equity compensation plan | 2.33K | — |
| Total | 2.33K | ||
Planned & Completed Dispositions3
Completed
—Completed
Units to sell
6.83K
Market value
$13.4K
1/6/2026
—Completed
Units to sell
4K
Market value
$7.8K
1/5/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
2.33K
Market value
$4.2K
1/21/2026
Total
Units
13.16K
Value
$25.5K
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
1/6/2026 | 6.83K | $13.4K | — | Completed |
1/5/2026 | 4K | $7.8K | — | Completed |
| Planned — Approximate Date | ||||
1/21/2026 | 2.33K | $4.2K | NASDAQ | Planned |
| Total | 13.16K | $25.5K | ||