Skip to main content
Signal8
Launch Terminal

Acumen Pharmaceuticals, Inc. (ABOS)

Acumen Pharmaceuticals, Inc. (ABOS) Insider Trading

Directors, officers and holders of more than 10% of ABOS report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 132 transactions on file: 0 with code P, 19 with code S and 31 with other codes.

DateInsiderCodeShares
Jun 17, 2026Porter DerrellM Exercise13,040
Jun 17, 2026Porter DerrellM Exercise13,040
Jun 17, 2026Porter DerrellS Sale13,040
Jun 16, 2026Porter DerrellS Sale12,800
Jun 15, 2026Porter DerrellM Exercise6,460
Jun 15, 2026Porter DerrellS Sale6,460
Jun 15, 2026Porter DerrellM Exercise6,460
Jun 9, 2026Fountain Nathan BS Sale6,400
Jun 3, 2026Fountain Nathan BA Award53,250
Jun 3, 2026Stalfort John A IIIA Award53,250
Jun 3, 2026Ives Jeffrey L.A Award35,500
Jun 3, 2026Golumbeski GeorgeA Award35,500
Jun 3, 2026Stoppel LauraA Award35,500
Jun 3, 2026Ives Jeffrey L.A Award53,250
Jun 3, 2026RA CAPITAL MANAGEMENT, L.P.A Award53,250
Jun 3, 2026Drapkin Kimberlee CA Award53,250
Jun 3, 2026Drapkin Kimberlee CA Award35,500
Jun 3, 2026RA CAPITAL MANAGEMENT, L.P.A Award35,500
Jun 3, 2026Porter DerrellA Award35,500
Jun 3, 2026Stoppel LauraA Award53,250
Jun 3, 2026Golumbeski GeorgeA Award53,250
Jun 3, 2026Stalfort John A IIIA Award35,500
Jun 3, 2026Porter DerrellA Award53,250
Jun 3, 2026Fountain Nathan BA Award35,500
Mar 16, 2026RA CAPITAL MANAGEMENT, L.P.A Award6,060,606
Mar 6, 2026Meisner Derek MM Exercise2,090
Mar 6, 2026Meisner Derek MS Sale2,090
Mar 6, 2026Meisner Derek MM Exercise2,090
Feb 27, 2026Meisner Derek MS Sale9,406
Feb 27, 2026Meisner Derek MM Exercise9,406
Feb 27, 2026Meisner Derek MM Exercise9,406
Jan 28, 2026Meisner Derek MM Exercise2,671
Jan 28, 2026Meisner Derek MS Sale2,671
Jan 28, 2026Meisner Derek MM Exercise2,671
Jan 26, 2026Meisner Derek MM Exercise15,085
Jan 26, 2026Meisner Derek MS Sale15,085
Jan 26, 2026Meisner Derek MM Exercise15,085
Jan 23, 2026Meisner Derek MS Sale5,633
Jan 22, 2026Zuga MattS Sale1,687
Jan 22, 2026Siemers EricS Sale895
Jan 22, 2026Meisner Derek MS Sale1,054
Jan 22, 2026OConnell Daniel JosephS Sale2,689
Jan 22, 2026Barton RussellS Sale462
Jan 21, 2026OConnell Daniel JosephS Sale9,346
Jan 21, 2026Zuga MattS Sale2,473
Jan 21, 2026Siemers EricS Sale2,331
Jan 21, 2026Meisner Derek MS Sale2,247
Jan 21, 2026Barton RussellS Sale2,315
Jan 20, 2026OConnell Daniel JosephA Award299,800
Jan 20, 2026OConnell Daniel JosephA Award450,000

The full Form 4 history is on the ABOS company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.