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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 Dec 2023
the date the book describes
Filed
14 Feb 2024
latest of these filings; the earliest 13 Feb 2024
Managers listing it
10
at least, of 95 tracked, among listed positions
Comparable managers
93
filed both Q3 2023 and Q4 2023; 5 listed it in both
Shares listed
8,621,216
combined, among listed positions
Reported value
$797m
combined, at the quarter end

Among the 93 comparable managers: 7 buyers (opened or added shares) and 3 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing ACM in Q4 2023

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2023, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

10 of 10 holders

ActionFiling
Invesco Ltd3,081,135$285m0.07%Trimmed-707,71013 Feb 2024 (the filing on sec.gov)
Starboard Value LP1,809,000$167m3.48%Trimmed-1,080,00014 Feb 2024 (the filing on sec.gov)
AllianceBernstein LP1,353,509$125munder 0.1%Trimmed-113,86214 Feb 2024 (the filing on sec.gov)
Millennium Management LLC927,952$86munder 0.1%Addedn.a.14 Feb 2024 (the filing on sec.gov)
Two Sigma Investments LP423,478$39m0.09%Addedn.a.14 Feb 2024 (the filing on sec.gov)
Man Group PLC396,046$37m0.10%Added+13,44114 Feb 2024 (the filing on sec.gov)
Two Sigma Advisers LP381,599$35m0.08%Addedn.a.14 Feb 2024 (the filing on sec.gov)
Voloridge Investment Management LLC121,225$11munder 0.1%Addedn.a.14 Feb 2024 (the filing on sec.gov)
ExodusPoint Capital Management LP99,925$9.2m0.06%Addedn.a.14 Feb 2024 (the filing on sec.gov)
Quantbot Technologies LP27,347$2.5m0.15%Added+12,69114 Feb 2024 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2023 to Q4 2023, 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 (0)

No new position among listed positions.

Exited (0)

No exit shown by a manager’s own filing.

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 →