ACM Institutional Ownership & Shareholders
AECOM (ACM) is currently held by 552 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $8.18B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of ACM tracked by InsiderSet, reporting ownership valued at approximately $1.00B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $910.81M, representing an estimated loss of -9.26% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 49% of the total disclosed ACM value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Primecap Management Co/Ca/, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in AECOM (ACM).
This page ranks the largest institutional ACM shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
552
Total Reported Value
$8.18B
Largest Holder
Blackrock, Inc.
Largest Position
$1.00B
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
49
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 14,379,638 | $1,003,698,738 | $910,806,271 | -$92,892,467 | -9.26% | |
| Primecap Management Co/Ca/ | 0.36% | 8,787,043 | $613,335,602 | $556,571,304 | -$56,764,298 | -9.26% | |
| Vanguard Capital Management Llc | 0.01% | 5,808,042 | $405,401,332 | $367,881,380 | -$37,519,952 | -9.26% | |
| Barrow Hanley Mewhinney & Strauss Llc | 1.16% | 5,497,153 | $383,701,279 | $348,189,671 | -$35,511,608 | -9.26% | |
| Vanguard Portfolio Management Llc | 0.02% | 5,486,637 | $382,967,263 | $347,523,588 | -$35,443,675 | -9.26% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.06% | 3,481,963 | $295,340,103 | $220,547,536 | -$74,792,567 | -25.32% | |
| State Street Corp | 0.01% | 4,106,098 | $286,605,640 | $260,080,247 | -$26,525,393 | -9.26% | |
| Fmr Llc | 0.01% | 3,758,192 | $262,321,822 | $238,043,881 | -$24,277,941 | -9.26% | |
| Invesco Ltd. | 0.02% | 3,191,873 | $222,792,760 | $202,173,236 | -$20,619,524 | -9.26% | |
| Geode Capital Management, Llc | 0.01% | 2,445,738 | $170,754,730 | $154,913,045 | -$15,841,685 | -9.28% | |
| First Trust Advisors Lp | 0.10% | 2,446,092 | $170,737,149 | $154,935,467 | -$15,801,682 | -9.25% | |
| Impax Asset Management Group Plc | 0.97% | 2,128,339 | $148,558,062 | $134,808,992 | -$13,749,070 | -9.26% | |
| Qube Research & Technologies Ltd | 0.16% | 2,119,499 | $147,941,030 | $134,249,067 | -$13,691,963 | -9.26% | |
| Arrowstreet Capital, Limited Partnership | 0.06% | 2,096,935 | $146,366,063 | $132,819,863 | -$13,546,200 | -9.26% | |
| Norges Bank | 0.01% | 1,853,035 | $129,341,843 | $117,371,237 | -$11,970,606 | -9.26% | |
| Aqr Capital Management Llc | 0.04% | 1,795,383 | $124,007,075 | $113,719,559 | -$10,287,516 | -8.30% | |
| D. E. Shaw & Co., Inc. | 0.07% | 1,711,157 | $119,438,758 | $108,384,684 | -$11,054,074 | -9.26% | |
| Ubs Group Ag | 0.02% | 1,695,404 | $118,339,199 | $107,386,889 | -$10,952,310 | -9.26% | |
| Dimensional Fund Advisors Lp | 0.02% | 1,640,760 | $114,526,869 | $103,925,738 | -$10,601,131 | -9.26% | |
| Morgan Stanley | 0.01% | 1,638,429 | $114,362,469 | $103,778,093 | -$10,584,376 | -9.26% | |
| Manufacturers Life Insurance Company, The | 0.07% | 1,352,854 | $94,429,209 | $85,689,772 | -$8,739,437 | -9.26% | |
| Millennium Management Llc | 0.06% | 1,321,296 | $92,226,461 | $83,690,889 | -$8,535,572 | -9.26% | |
| Bank Of New York Mellon Corp | 0.01% | 1,139,237 | $79,518,792 | $72,159,272 | -$7,359,520 | -9.26% | |
| Northern Trust Corp | 0.01% | 1,125,934 | $78,590,193 | $71,316,660 | -$7,273,533 | -9.26% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.09% | 1,050,704 | $73,339,094 | $66,551,591 | -$6,787,503 | -9.25% | |
| Charles Schwab Investment Management Inc | 0.01% | 968,695 | $67,614,911 | $61,357,141 | -$6,257,770 | -9.26% | |
| Cibc Bancorp Usa Inc. | 0.08% | 925,183 | $64,577,774 | $58,601,091 | -$5,976,683 | -9.26% | |
| Two Sigma Investments, Lp | 0.05% | 875,607 | $61,117,369 | $55,460,947 | -$5,656,422 | -9.26% | |
| Vanguard Fiduciary Trust Co | 0.01% | 812,607 | $56,719,969 | $51,470,527 | -$5,249,442 | -9.26% | |
| Goldman Sachs Group Inc | 0.01% | 770,270 | $53,764,874 | $48,788,902 | -$4,975,972 | -9.26% | |
| Ninety One Uk Ltd | 0.12% | 752,341 | $52,513,388 | $47,653,279 | -$4,860,109 | -9.25% | |
| Renaissance Technologies LLC | Jim Simons | 0.07% | 746,877 | $52,132,015 | $47,307,189 | -$4,824,826 | -9.26% |
| Bank Of America Corp | 0.00% | 742,285 | $51,811,464 | $47,016,332 | -$4,795,132 | -9.25% | |
| Barclays Plc | 0.02% | 728,214 | $50,829,338 | $46,125,075 | -$4,704,263 | -9.26% | |
| Citadel Advisors Llc | 0.03% | 677,771 | $47,308,416 | $42,930,015 | -$4,378,401 | -9.26% | |
| Alliancebernstein L.P. | 0.02% | 556,862 | $47,233,035 | $35,271,639 | -$11,961,396 | -25.32% | |
| Tudor Investment Corp Et Al | 0.19% | 669,882 | $46,757,764 | $42,430,326 | -$4,327,438 | -9.26% | |
| Pfa Pension, Forsikringsaktieselskab | 0.11% | 618,067 | $43,141,108 | $39,148,364 | -$3,992,744 | -9.26% | |
| Hsbc Holdings Plc | 0.02% | 567,740 | $39,293,475 | $35,960,652 | -$3,332,823 | -8.48% | |
| Sg Americas Securities, Llc | 0.02% | 545,384 | $38,068,000 | $34,544,623 | -$3,523,377 | -9.26% | |
| Jane Street Group, Llc | 0.02% | 534,601 | $37,315,150 | $33,861,627 | -$3,453,523 | -9.26% | |
| Prudential Financial Inc | 0.04% | 512,703 | $35,786,669 | $32,474,608 | -$3,312,061 | -9.26% | |
| Squarepoint Ops Llc | 0.07% | 497,601 | $34,732,550 | $31,518,047 | -$3,214,503 | -9.26% | |
| Jpmorgan Chase & Co | 0.00% | 488,288 | $34,484,452 | $30,928,162 | -$3,556,290 | -10.31% | |
| Bnp Paribas Financial Markets | 0.02% | 475,081 | $33,160,654 | $30,091,631 | -$3,069,023 | -9.26% | |
| Banque Cantonale Vaudoise | 0.00% | 479 | $33,000,000 | $30,340 | -$32,969,660 | -99.91% | |
| Perpetual Ltd | 0.49% | 544,353 | $32,089,609 | $34,479,319 | +$2,389,710 | +7.45% | |
| Gotham Asset Management, Llc | 0.07% | 454,550 | $31,727,590 | $28,791,197 | -$2,936,393 | -9.26% | |
| Nuveen, Llc | 0.01% | 443,361 | $30,946,584 | $28,082,486 | -$2,864,098 | -9.25% | |
| Sandhill Capital Partners Llc | 2.35% | 414,675 | $28,944,323 | $26,265,515 | -$2,678,809 | -9.26% |
Frequently asked questions about ACM
Who are the largest institutional holders of ACM?
The largest institutional holders of ACM reported in the latest SEC Form 13F filings include Blackrock, Inc., Primecap Management Co/Ca/, Vanguard Capital Management Llc, Barrow Hanley Mewhinney & Strauss Llc, and Vanguard Portfolio Management Llc. InsiderSet ranks institutional holders by their latest reported ACM position.
What is ACM institutional ownership?
This page tracks ACM positions reported by institutional investment managers through SEC Form 13F. AECOM (ACM) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own ACM?
InsiderSet currently tracks 552 institutional managers reporting ACM holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of ACM shareholders.
How much ACM stock do institutions own?
Institutional investment managers disclosed approximately $8.18B in ACM holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was ACM institutional ownership last updated?
The latest ACM institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional ACM holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its ACM position after the reporting date.
Are institutions buying or selling ACM?
Institutional buying and selling can be analyzed by comparing ACM positions across consecutive 13F reporting periods. InsiderSet's ACM Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View ACM ownership changes.
How has ACM institutional ownership changed over time?
InsiderSet tracks ACM institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.