RA CAPITAL MANAGEMENT, L.P. bought ABOS

March 16, 2026 · Form 4 insider transaction

RA CAPITAL MANAGEMENT, L.P. bought 6,060,606 shares of Acumen Pharmaceuticals, Inc. at $3.30 per share, a transaction worth $20.00M. The trade was recorded as grant or award and disclosed on an SEC Form 4, filed 2 days after the transaction.

Direction
Acquired (buy-side)
Shares
6,060,606
Price
$3.30
Total value
$20.00M
RoleDirector, 10% owner
SecurityCommon Stock
Transaction codeA: Grant or award
Transaction dateMarch 16, 2026
Filing dateMarch 18, 2026
Shares owned after19,103,785
OwnershipIndirect
10b5-1 planNo
AmendedNo

Footnotes

Held directly by RA Capital Healthcare Fund, L.P. (the "Fund").; RA Capital Management, L.P. (the "Adviser") is the investment manager for the Fund, RA Capital Nexus Fund II, L.P. (the "Nexus Fund II") and a separately managed account (the "Account"). The general partner of the Adviser is RA Capital Management GP, LLC (the "Adviser GP"), of which Dr. Peter Kolchinsky and Mr. Rajeev Shah are the managing members. Each of the Adviser, the Adviser GP, the Fund, the Nexus Fund II, Dr. Kolchinsky, and Mr. Shah disclaims beneficial ownership of any of the reported securities, except to the extent of its or his respective pecuniary interest therein.

View the original Form 4 on SEC EDGAR