Barton Russell sold ABOS
January 22, 2026 · Form 4 insider transaction
Barton Russell sold 462 shares of Acumen Pharmaceuticals, Inc. at $1.84 per share, a transaction worth $850.08. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 1 day after the transaction.
Direction
Disposed (sell-side)
Shares
462
Price
$1.84
Total value
$850.08
InsiderBarton Russell
Role—
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateJanuary 22, 2026
Filing dateJanuary 23, 2026
Shares owned after205,092
OwnershipDirect
10b5-1 planYes
AmendedNo
Footnotes
Represents the number of shares sold by the Reporting Person through an automatic "sell to cover" transaction to satisfy tax withholding obligations in connection with the vesting of restricted stock units pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 30, 2024.