Aecom (ACM) Institutional Ownership

Ownership Summary

A total of 631 institutions have reported a stake in Aecom (NYSE:ACM) as of September 2025, according to recent 13F filings with the SEC.

• Institutional ownership in Aecom edged down to 87.0% in September 2025, compared to 89.1% in June 2025.
• Institutional share ownership changed by 0.61% QoQ, while the number of institutional owners saw an increase of 21.11% YoY.
• Of these 631 institutional investors, 288 increased their holdings in Aecom, while 237 of them reduced positions, and 106 investors maintained their exposure.
• This class of investors increased its holdings in Aecom to 115.16Mn shares for the 13F-cycle ending September 2025, up by 703.49K shares quarter on quarter, and down 1.27Mn shares year over year.
• BlackRock, Inc. continues to be the largest institutional holder of Aecom as of September 30, 2025, with a position of 14.69Mn shares, representing 11.09% of the company's outstanding stock.
• Among the most significant buyers of Aecom during September 2025 were FIRST TRUST ADVISORS LP (2.16Mn), UBS Group AG (672.28K), Invesco Ltd. (618.21K), PANAGORA ASSET MANAGEMENT INC (505.41K), DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main (435.91K).
• Leading sellers of Aecom stock in September 2025 included Amundi (806.91K), PRIMECAP MANAGEMENT CO/CA/ (684.89K), BlackRock, Inc. (593.48K), MILLENNIUM MANAGEMENT LLC (306.90K), UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC (280.22K).
• The top 10 institutional holders of Aecom for the quarter ending September 2025 included BlackRock, Inc. (14.69Mn), VANGUARD GROUP INC (12.52Mn), PRIMECAP MANAGEMENT CO/CA/ (8.88Mn), STATE STREET CORP (5.11Mn), Invesco Ltd. (4.98Mn), FIRST TRUST ADVISORS LP (4.22Mn), Pictet Asset Management Holding SA (3.77Mn), ALLIANCEBERNSTEIN L.P. (2.61Mn), GEODE CAPITAL MANAGEMENT, LLC (2.42Mn), UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC (2.37Mn).