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Barton Russell's Form 4 filing

Acumen Pharmaceuticals, Inc. (ABOS) · filed Jan 12, 2026

Accession no.
0001628280-26-001897
Filed
Jan 12, 2026
Trade date
Jan 8, 2026
Filing delay
4 days
Rule 10b5-1 plan
Not checked

This filing lists 1 non-derivative transaction. Open-market sales total $6.57K. It was filed 4 days after the trade.

Reporting owners

A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.

Reporting owners on this filing
OwnerRelationship to the company
Barton RussellCIK 0001867418Officer (Chief Operating Officer)

Non-derivative securities (Table I)

Acquisitions and disposals of common stock and similar shares, one row per line on the filing.

Non-derivative transactions
Trade dateSecurityTransactionSharesPriceValueShares afterOwnershipFlags
Jan 8, 2026Common StockSSaleDisposed−3,530$1.86F2−$6,565.8123,269Direct

Footnotes and remarks

Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.

F2

The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $1.8000 to $1.9500. 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.

Referenced by the price of 1 transaction in Table I.

Read the full filing on SEC EDGAR (opens in a new tab)