Aecom (ACM) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

131,982,000Shares Outstanding

116,020,199Shares held by institutions

$9,337,305,616Value of institutional holdings

87.91%Institutional ownership %

-1.93%Shares Changed QoQ

628No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Aecom (NYSE:ACM) is held by 625 institutional investors per 13F filings through December 2025.

They owned 86.7% of outstanding stock in December 2025, down from 89.4% the prior quarter.
They decreased total shares held in ACM by -2.7% quarter over quarter, and investors in Aecom increased 12.01% from a year ago.
Of these 625 holders, 284 added to their stakes in Aecom, 246 trimmed positions, and 95 made no changes.
Institutional investors collectively held 114.43Mn shares in Aecom as of December 2025, down by 3.17Mn shares quarter on quarter, and down 7.82Mn shares year over year.
As of December 31, 2025, Pictet Asset Management Holding SA held the largest stake in Aecom with 2.13Mn shares, accounting for 1.61% of total shares outstanding.
The largest buyers of Aecom for the quarter ending December 2025 were PBU - The Pension Fund of Early Childhood & Youth Educators (214.34K), SG Americas Securities, LLC (211.27K), Robeco Institutional Asset Management B.V. (143.97K), Guinness Asset Management LTD (122.42K), BI Asset Management Fondsmaeglerselskab A/S (113.54K).
The biggest sellers of Aecom for the quarter ending December 2025 included Pictet Asset Management Holding SA (793.97K), Ninety One UK Ltd (330.35K), STRS OHIO (54.49K), Hennessy Advisors Inc (29.9K), Sterling Capital Management LLC (3.5K).
Aecom's 10 largest shareholders as of December 2025 include Pictet Asset Management Holding SA (2.13Mn), Ninety One UK Ltd (962.36K), Retirement Systems of Alabama (339.31K), SG Americas Securities, LLC (295.51K), Vest Financial, LLC (288.24K), Hennessy Advisors Inc (285.7K), Robeco Institutional Asset Management B.V. (254.95K), PBU - The Pension Fund of Early Childhood & Youth Educators (214.34K), Ninety One North America, Inc. (137.02K), Guinness Asset Management LTD (122.59K) per Business Quant data.

630 Institutional Holders

116,020,199 Total Shares Held

Rows:

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Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	15,206,979	521,689	3.55%	$1,449,681,341.00
VANGUARD GROUP INC	31 Dec, 2025	12,285,802	-231,368	-1.85%	$1,171,205,505.00
PRIMECAP MANAGEMENT CO/CA/	31 Dec, 2025	8,667,283	-211,080	-2.38%	$826,252,089.00
State Street Corp	31 Dec, 2025	5,043,588	-64,048	-1.25%	$480,805,244.00
Invesco Ltd.	31 Dec, 2025	4,316,643	-663,317	-13.32%	$411,505,609.00
FIRST TRUST ADVISORS LP	31 Dec, 2025	4,080,140	-136,232	-3.23%	$388,959,746.00
Pictet Asset Management Holding SA	31 Dec, 2025	2,922,328	-849,546	-22.52%	$278,600,262.00
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	31 Dec, 2025	2,773,910	407,622	17.23%	$264,436,841.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	2,444,275	25,929	1.07%	$232,359,348.00
NORGES BANK	31 Dec, 2025	2,155,657	2,155,657	0.00%	$205,498,782.00
Northern Trust Corp	31 Dec, 2025	2,035,018	-83,131	-3.92%	$193,998,265.00
BARROW HANLEY MEWHINNEY & STRAUSS LLC	31 Dec, 2025	1,969,418	-240,712	-10.89%	$187,744,618.00
Goldman Sachs Group Inc	31 Dec, 2025	1,934,398	774,171	66.73%	$184,406,254.00
Morgan Stanley	31 Dec, 2025	1,542,289	94,789	6.55%	$147,026,540.00
ALLIANCEBERNSTEIN L.P.	31 Dec, 2025	1,516,644	-1,090,671	-41.83%	$144,581,673.00
UBS Group AG	31 Dec, 2025	1,395,750	-219,359	-13.58%	$133,056,848.00
Impax Asset Management Group plc	31 Dec, 2025	1,392,092	-9,981	-0.71%	$132,708,130.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	1,304,632	-6,397	-0.49%	$124,382,146.00
Bank of New York Mellon Corp	31 Dec, 2025	1,301,128	33,538	2.65%	$124,036,540.00
Ninety One UK Ltd	31 Dec, 2025	1,292,712	-1,344,484	-50.98%	$123,234,217.00

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