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Acumen Pharmaceuticals, Inc.

ABOS No buying or selling

CIK 0001576885 #3844 in the set updated 21 Sep 2026

Bought (1 mo)

$0.00

out of their own pocket, the only kind of buying there is

Sold (1 mo)

$0.00

$0.00 on a plan · $0.00 straight out of an exercise

Sold at will

$0.00

0 of 0 sales

Net

$0.00

$0.00 against sales at will

By person

15 insiders · 0 transactions

Insider

Role

Bought

Sold

Net

Holding

Worth

Change

OConnell Daniel Joseph

Chief Executive Officer

—

881,275

$2.05M

+75.4%

Zuga Matt

CFO & Chief Business Officer

—

304,924

$708.95K

+44.2%

Siemers Eric

Chief Medical Officer

—

255,371

$593.74K

+117.2%

Doherty James J.

President and CDO

—

220,900

$513.59K

—

Stalfort John A III

Director

—

220,624

$512.95K

+28.0%

Barton Russell

Chief Operating Officer

—

205,092

$476.84K

+111.7%

Meisner Derek M

Chief Legal Officer & Corp Sec

—

173,999

$404.55K

+59.8%

Schacterle Amy

Chief Regulatory Officer

—

92,303

$214.60K

—

RA CAPITAL MANAGEMENT, L.P. entity

Director

—

48,300

$112.30K

—

Drapkin Kimberlee C

Director

—

48,300

$112.30K

—

Stoppel Laura

Director

—

48,300

$112.30K

—

Ives Jeffrey L.

Director

—

48,300

$112.30K

—

Fountain Nathan B

Director

—

48,150

$111.95K

+670.4%

Golumbeski George

Director

—

35,500

$82.54K

—

Porter Derrell

Director

—

35,500

$82.54K

—

No percentages here. These insiders hold more than one class of share between them, and the share count on file covers one of them rather than all. Dividing the two would compare different things.

Individual transactions

Nothing of that kind in this period.

What was left out

Form 4 filings counted 0

Amendments (4/A) skipped 0

Filings about a different issuer 0

Unreadable filings 0

Joint filings 0

Sales on a Rule 10b5-1 plan 0

Sales straight out of an exercise 0

Sales at will 0

Transactions with no price 0

Shares from compensation/vesting 0

History held since 2 Jul 2021