OConnell Daniel Joseph sold ABOS

January 21, 2026 · Form 4 insider transaction

OConnell Daniel Joseph sold 9,346 shares of Acumen Pharmaceuticals, Inc. at $1.81 per share, a transaction worth $16.9K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 2 days after the transaction.

Direction
Disposed (sell-side)
Shares
9,346
Price
$1.81
Total value
$16.9K
Role
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateJanuary 21, 2026
Filing dateJanuary 23, 2026
Shares owned after883,964
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 June 24, 2024.; The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.7600 to $1.8800. Upon request, the Reporting Person will provide to the staff of the Securities and Exchange Commission, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

View the original Form 4 on SEC EDGAR