AECOM Ownership & Insider Activity

AECOM (ACM) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 3.2% of shares outstanding. Institutional investors hold 67.8%.

Shares Outstanding

128.696M

Shares Float

101.943M

Insider Shares Owned

4.111M

Insider % Owned

3.2%

Institutional Shares Held

87.221M

Institutional % Held

67.8%

Ownership Breakdown

Congressional Trading Activity

Date	Member	Party	Chamber	Action	Amount
Mar 27, 2026	Alan Armstrong	R	Senate	Sale	$15,001 - $50,000