BARTON RUSSELL (Chief Operating Officer) sold 1.3% of their position (2.78K shares) of ACUMEN PHARMACEUTICALS, INC. on the open market
Open‑market sale worth $5.0K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 2 sales
Filed: 1/23/2026ACC: 0001628280-26-003344
Officer· Chief Operating Officer
Since Jun 2021
-2.78K
Net shares
Net seller
$5.0K
Total sold
2
Open market trades
0B · 2S
2
Total transactions
2.78K disposed
Non-Derivative Transactions2
Common Stock
Direct
Shares
−2.31K
Price / share
$1.81
Trade value
$4.18K
% of position
1.1%
1/21/2026
207.87K→205.55K
Common Stock
Direct
Shares
−462.00
Price / share
$1.84
Trade value
$850.08
% of position
0.2%
1/22/2026
205.55K→205.09K
Total
Net shares
−2.78K
Net value
-$5.03K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 1/21/2026 | S · Sale | −2.31K | $1.81 | $4.18K | 1.1% | 207.87K | 205.55K |
| Common Stock Direct | 1/22/2026 | S · Sale | −462.00 | $1.84 | $850.08 | 0.2% | 205.55K | 205.09K |
| Total | −2.78K | -$5.03K | ||||||
Derivative Transactions0
No derivative transactions reported