AECOM (ACM) Institutional Shareholders
AECOM (ACM) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $8.23B in ACM holdings during the latest filing period.
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 $1.09B, representing an estimated gain of +8.65% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 52% 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
571
Total Reported Value
$8.23B
Largest Holder
Blackrock, Inc.
Largest Position
$1.00B
Insider Transactions (90d)
1
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 | $1,090,551,746 | +$86,853,008 | +8.65% | |
| Primecap Management Co/Ca/ | 0.58% | 8,647,073 | $733,444,733 | $655,794,016 | -$77,650,717 | -10.59% | |
| Vanguard Capital Management Llc | 0.01% | 5,800,366 | $491,987,044 | $439,899,757 | -$52,087,287 | -10.59% | |
| Vanguard Portfolio Management Llc | 0.02% | 5,506,279 | $467,042,585 | $417,596,199 | -$49,446,386 | -10.59% | |
| Invesco Ltd. | 0.05% | 3,575,351 | $303,261,300 | $271,154,620 | -$32,106,680 | -10.59% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.06% | 3,481,963 | $295,340,103 | $264,072,074 | -$31,268,029 | -10.59% | |
| State Street Corp | 0.01% | 4,106,098 | $286,605,640 | $311,406,472 | +$24,800,832 | +8.65% | |
| First Trust Advisors Lp | 0.18% | 3,026,446 | $256,703,122 | $229,525,665 | -$27,177,457 | -10.59% | |
| Barrow Hanley Mewhinney & Strauss Llc | 0.79% | 2,852,722 | $241,967,880 | $216,350,436 | -$25,617,444 | -10.59% | |
| Geode Capital Management, Llc | 0.01% | 2,469,449 | $208,881,112 | $187,283,012 | -$21,598,100 | -10.34% | |
| Fmr Llc | 0.01% | 2,108,080 | $178,807,291 | $159,876,787 | -$18,930,504 | -10.59% | |
| Northern Trust Corp | 0.02% | 1,964,760 | $166,650,943 | $149,007,398 | -$17,643,545 | -10.59% | |
| Morgan Stanley | 0.01% | 1,679,469 | $142,452,645 | $127,370,929 | -$15,081,716 | -10.59% | |
| Ubs Group Ag | 0.02% | 1,425,606 | $120,919,901 | $108,117,959 | -$12,801,942 | -10.59% | |
| Dimensional Fund Advisors Lp | 0.02% | 1,387,535 | $117,680,369 | $105,230,654 | -$12,449,715 | -10.58% | |
| Impax Asset Management Group Plc | 0.82% | 1,382,667 | $117,277,815 | $104,861,465 | -$12,416,350 | -10.59% | |
| Amundi | 0.03% | 1,226,006 | $103,959,409 | $92,980,295 | -$10,979,114 | -10.56% | |
| Manufacturers Life Insurance Company, The | 0.09% | 1,221,349 | $103,594,822 | $92,627,108 | -$10,967,714 | -10.59% | |
| D. E. Shaw & Co., Inc. | 0.07% | 1,062,228 | $90,098,179 | $80,559,372 | -$9,538,807 | -10.59% | |
| Aqr Capital Management Llc | 0.04% | 1,061,227 | $89,599,418 | $80,483,456 | -$9,115,962 | -10.17% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.11% | 969,025 | $82,190,518 | $73,490,856 | -$8,699,662 | -10.58% | |
| Bank Of New York Mellon Corp | 0.01% | 1,139,237 | $79,518,792 | $86,399,734 | +$6,880,942 | +8.65% | |
| Charles Schwab Investment Management Inc | 0.01% | 928,854 | $78,785,396 | $70,444,287 | -$8,341,109 | -10.59% | |
| Vanguard Fiduciary Trust Co | 0.02% | 802,679 | $68,083,233 | $60,875,175 | -$7,208,058 | -10.59% | |
| Goldman Sachs Group Inc | 0.01% | 797,664 | $67,657,843 | $60,494,838 | -$7,163,005 | -10.59% | |
| Millennium Management Llc | 0.05% | 784,028 | $66,501,255 | $59,460,684 | -$7,040,571 | -10.59% | |
| Ameriprise Financial Inc | 0.01% | 732,234 | $62,108,073 | $55,532,627 | -$6,575,446 | -10.59% | |
| Citadel Advisors Llc | 0.04% | 714,657 | $60,617,207 | $54,199,587 | -$6,417,620 | -10.59% | |
| Pfa Pension, Forsikringsaktieselskab | 0.18% | 697,347 | $59,148,969 | $52,886,796 | -$6,262,173 | -10.59% | |
| Hsbc Holdings Plc | 0.03% | 678,649 | $57,552,760 | $51,468,740 | -$6,084,020 | -10.57% | |
| Renaissance Technologies LLC | Jim Simons | 0.09% | 662,277 | $56,174,335 | $50,227,088 | -$5,947,247 | -10.59% |
| Lazard Asset Management Llc | 0.09% | 644,734 | $54,686,338 | $48,896,627 | -$5,789,711 | -10.59% | |
| Alliancebernstein L.P. | 0.02% | 558,225 | $53,215,589 | $42,335,784 | -$10,879,805 | -20.44% | |
| Bank Of America Corp | 0.00% | 620,589 | $52,638,336 | $47,065,470 | -$5,572,866 | -10.59% | |
| Ninety One Uk Ltd | 0.12% | 752,341 | $52,513,388 | $57,057,541 | +$4,544,153 | +8.65% | |
| Barclays Plc | 0.02% | 613,713 | $52,055,137 | $46,543,994 | -$5,511,143 | -10.59% | |
| Voloridge Investment Management, Llc | 0.19% | 564,598 | $47,889,202 | $42,819,112 | -$5,070,090 | -10.59% | |
| Nuveen, Llc | 0.01% | 508,337 | $43,117,144 | $38,552,278 | -$4,564,866 | -10.59% | |
| Two Sigma Investments, Lp | 0.04% | 506,591 | $42,969,049 | $38,419,861 | -$4,549,188 | -10.59% | |
| Qube Research & Technologies Ltd | 0.05% | 441,873 | $37,479,668 | $33,511,648 | -$3,968,020 | -10.59% | |
| Allianz Asset Management Gmbh | 0.04% | 415,286 | $35,224,558 | $31,495,290 | -$3,729,268 | -10.59% | |
| Legal & General Group Plc | 0.01% | 405,333 | $34,380,349 | $30,740,455 | -$3,639,894 | -10.59% | |
| Perpetual Ltd | 0.48% | 484,722 | $33,833,596 | $36,761,316 | +$2,927,720 | +8.65% | |
| Swiss National Bank | 0.02% | 386,880 | $32,815,162 | $29,340,979 | -$3,474,183 | -10.59% | |
| Rhumbline Advisers | 0.03% | 351,241 | $29,792,215 | $26,638,117 | -$3,154,098 | -10.59% | |
| Verition Fund Management Llc | 0.28% | 339,600 | $28,804,872 | $25,755,264 | -$3,049,608 | -10.59% | |
| Fil Ltd | 0.02% | 317,188 | $26,903,886 | $24,055,538 | -$2,848,348 | -10.59% | |
| Prudential Financial Inc | 0.03% | 312,881 | $26,538,566 | $23,728,895 | -$2,809,671 | -10.59% | |
| Ci Investments Inc. | 0.13% | 310,968 | $26,376,306 | $23,583,813 | -$2,792,493 | -10.59% | |
| Robeco Schweiz Ag | 0.39% | 345,638 | $24,125,532 | $26,213,186 | +$2,087,654 | +8.65% |
Frequently asked questions about ACM
Who owns the most ACM stock?
The largest holders of ACM are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for AECOM (ACM).
Is ACM widely held by superinvestors?
Many widely followed stocks like ACM appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly ACM is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.