Acumen Pharmaceuticals Ownership & Insider Activity

Acumen Pharmaceuticals (ABOS) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 3.6% of shares outstanding. Institutional investors hold 16.4%.

Shares Outstanding

72.327M

Shares Float

50.443M

Insider Shares Owned

2.619M

Insider % Owned

3.6%

Institutional Shares Held

11.868M

Institutional % Held

16.4%

Ownership Breakdown

Net Insider Activity by Month

Acumen Pharmaceuticals Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Jun 15, 2026	Derrell Porter	DIRECTOR	SELL	12.800K	$1.70	$54K
Jun 9, 2026	Nathan Fountain	DIRECTOR	SELL	6.400K	$2.23	$14K