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ACM in the 13F filings

Aecom Technology Corp · CUSIP 00766T100

Sector · Business and payment services
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
35
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 10 listed it in both
Shares listed
13,956,107
combined, among listed positions
Reported value
$1.2bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 25 buyers (opened or added shares) and 10 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +2,278,217.

Managers listing ACM in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

35 of 35 holders

ActionFiling
Invesco Ltd3,575,351$303munder 0.1%Trimmed-741,29212 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)2,108,080$179munder 0.1%Added+921,65115 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.1,062,228$90m0.05%Added+703,29115 May 2026 (the filing on sec.gov)
AQR Capital Management LLC1,061,227$90munder 0.1%Added+890,44415 May 2026 (the filing on sec.gov)
Millennium Management LLC784,028$67munder 0.1%Added+405,50515 May 2026 (the filing on sec.gov)
Citadel Advisors LLC714,657$61munder 0.1%Added+199,91415 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC662,277$56m0.09%Added+24,70014 May 2026 (the filing on sec.gov)
AllianceBernstein LP558,225$53munder 0.1%Trimmed-958,41915 May 2026 (the filing on sec.gov)
Voloridge Investment Management LLC564,598$48m0.19%Added+304,75615 May 2026 (the filing on sec.gov)
Two Sigma Investments LP506,591$43munder 0.1%Added+119,38415 May 2026 (the filing on sec.gov)
Verition Fund Management LLC339,600$29m0.19%Added+130,14915 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC267,610$23munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP238,580$20munder 0.1%Added+218,92014 May 2026 (the filing on sec.gov)
Tudor Investment Corp232,079$20munder 0.1%Added+138,06315 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc217,641$18munder 0.1%Added+23,54915 May 2026 (the filing on sec.gov)
Bridgewater Associates LP183,161$16m0.07%Added+140,48615 May 2026 (the filing on sec.gov)
Man Group PLC182,602$15munder 0.1%Added+121,72415 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC128,031$11munder 0.1%Newnew13 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC124,124$11munder 0.1%Trimmed-9,79415 May 2026 (the filing on sec.gov)
Caxton Associates LLP79,230$6.7m0.15%Added+73,86914 May 2026 (the filing on sec.gov)
Holocene Advisors LP66,349$5.6munder 0.1%Added+10,11715 May 2026 (the filing on sec.gov)
Marshall Wace LLP57,940$4.9munder 0.1%Trimmed-403,73415 May 2026 (the filing on sec.gov)
Quantbot Technologies LP45,342$3.8m0.16%Trimmed-2,60513 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP41,815$3.5munder 0.1%Added+30,27715 May 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC32,217$2.7munder 0.1%Trimmed-12,10615 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (5)

Exited (1)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
13 in Q3 2024 to 13 in Q2 2026

Tracked managers listing it, at least.

0510152014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
ACM by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20134$490mn.a.n.a.
Q3 20133$517mn.a.n.a.
Q4 20135$505mn.a.n.a.
Q1 20144$577mn.a.n.a.
Q2 20147$612mn.a.n.a.
Q3 201410$1.1bnn.a.n.a.
Q4 20146$1.2bnn.a.n.a.
Q1 20154$1.3bnn.a.n.a.
Q2 20155$1.4bnn.a.n.a.
Q3 20155$910mn.a.n.a.
Q4 20155$980mn.a.n.a.
Q1 20164$989mn.a.n.a.
Q2 20165$954mn.a.n.a.
Q3 20166$905mn.a.n.a.
Q4 201610$1.2bnn.a.n.a.
Q1 20175$1.1bnn.a.n.a.
Q2 20176$935mn.a.n.a.
Q3 20175$961mn.a.n.a.
Q4 20176$1.1bnn.a.n.a.
Q1 20184$1.1bnn.a.n.a.
Q2 20185$984mn.a.n.a.
Q3 20182$841mn.a.n.a.
Q4 20184$782mn.a.n.a.
Q1 20196$713mn.a.n.a.
Q2 20195$1.0bnn.a.n.a.
Q3 20198$1.2bnn.a.n.a.
Q4 20199$1.4bnn.a.n.a.
Q1 202011$1.2bnn.a.n.a.
Q2 202012$1.5bnn.a.n.a.
Q3 202012$1.5bnn.a.n.a.
Q4 202012$1.5bnn.a.n.a.
Q1 20218$1.7bnn.a.n.a.
Q2 20217$1.5bnn.a.n.a.
Q3 20217$1.4bnn.a.n.a.
Q4 20216$1.6bnn.a.n.a.
Q1 20225$1.8bnn.a.n.a.
Q2 20226$1.2bnn.a.n.a.
Q3 20226$1.3bnn.a.n.a.
Q4 20229$1.5bnn.a.n.a.
Q1 20239$1.1bnn.a.n.a.
Q2 20237$883mn.a.n.a.
Q3 20236$739mn.a.n.a.
Q4 202310$797m73
Q1 202414$894m113
Q2 202412$679m94
Q3 202413$1.0bn86
Q4 20249$701m53
Q1 202511$511m74
Q2 202511$986m56
Q3 202510$1.2bn46
Q4 202511$759m2311
Q1 202612$279m2510
Q2 202613$549m2116

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

ACM and V →ACM and MA →ACM and MCO →Choose a stock to compare with ACM →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own ACM, latest filings →Back to the 13F Explorer →