Who owns Aecom?
Institutional ownership of ACM from SEC Form 13F filings across 352 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
352
13F holders
$6.42B
value, 2026 filers
73.4%
of shares outstanding (94.3M sh)
45
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of ACM's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 14.4M | $1.00B | 0.0% | 11.2% | -8.8% |
| 2 | PRIMECAP MANAGEMENT CO/CA/ | 8.8M | $613.3M | 0.4% | 6.8% | +1.6% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 5.8M | $405.4M | 0.0% | 4.5% | -49.9% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 5.5M | $383.0M | 0.0% | 4.3% | -0.4% |
| 5 | FMR LLC | 3.8M | $262.3M | 0.0% | 2.9% | +78.3% |
| 6 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 3.6M | $248.9M | 0.0% | 2.8% | +2.4% |
| 7 | Invesco Ltd. | 3.2M | $222.8M | 0.0% | 2.5% | -10.7% |
| 8 | FIRST TRUST ADVISORS LP | 2.4M | $170.7M | 0.1% | 1.9% | -19.2% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 2.4M | $170.8M | 0.0% | 1.9% | -1.0% |
| 10 | Qube Research & Technologies Ltd | 2.1M | $147.9M | 0.1% | 1.6% | +379.7% |
| 11 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 2.1M | $146.4M | 0.1% | 1.6% | +778.9% |
| 12 | NORGES BANKNEW | 1.9M | $129.3M | 0.0% | 1.4% | new |
| 13 | D. E. Shaw & Co., Inc. | 1.7M | $119.4M | 0.1% | 1.3% | +61.1% |
| 14 | UBS Group AG | 1.7M | $118.3M | 0.0% | 1.3% | +18.9% |
| 15 | MORGAN STANLEY | 1.6M | $114.4M | 0.0% | 1.3% | -2.4% |
| 16 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | 1.4M | $94.4M | 0.1% | 1.1% | +10.8% |
| 17 | MILLENNIUM MANAGEMENT LLC | 1.3M | $92.2M | 0.0% | 1% | +68.5% |
| 18 | Amundi | 1.3M | $91.7M | 0.0% | 1% | +7.0% |
| 19 | Bank of New York Mellon Corp | 1.1M | $79.5M | 0.0% | 0.9% | -12.3% |
| 20 | NORTHERN TRUST CORP | 1.1M | $78.6M | 0.0% | 0.9% | -42.7% |
| 21 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1.1M | $73.3M | 0.1% | 0.8% | +8.4% |
| 22 | Sixth Street Partners Management Company, L.P.NEW | 968,695 | $67.6M | 11.7% | 0.8% | new |
| 23 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 968,695 | $67.6M | 0.0% | 0.8% | +4.3% |
| 24 | CIBC Bancorp USA Inc. | 925,183 | $64.6M | 0.1% | 0.7% | +11186.8% |
| 25 | TWO SIGMA INVESTMENTS, LP | 875,607 | $61.1M | 0.0% | 0.7% | +72.8% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.