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568 hedge funds and large institutions have $8.35B invested in Aecom in 2026 Q2 according to their latest regulatory filings, with 82 funds opening new positions, 184 increasing their positions, 235 reducing their positions, and 127 closing their positions.

New
Increased
Maintained
Reduced
Closed

5.1% more ownership

Funds ownership: 87.78%92.88% (+5.1%)

9% less funds holding

Funds holding: 622568 (-54)

13% less capital invested

Capital invested by funds: $9.63B → $8.35B (-$1.27B)

22% less repeat investments, than reductions

Existing positions increased: 184 | Existing positions reduced: 235

34% less call options, than puts

Call options by funds: $19.9M | Put options by funds: $30.1M

35% less first-time investments, than exits

New positions opened: 82 | Existing positions closed: 127

100% less funds holding in top 10

Funds holding in top 10: 10 (-1)

Holders
568
Holders Change
-54
Holders Change %
-8.68%
% of All Funds
6.86%
Holding in Top 10
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
New
82
Increased
184
Reduced
235
Closed
127
Calls
$19.9M
Puts
$30.1M
Net Calls
-$10.2M
Net Calls Change
-$8.89M
Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$1B -$106M -1,380,726 -9%
Primecap Management
2
Primecap Management
California
$613M +$10.7M +139,970 +2%
Vanguard Capital Management
3
Vanguard Capital Management
Pennsylvania
$405M +$587K +7,676 +0.1%
Barrow, Hanley, Mewhinney & Strauss
4
Barrow, Hanley, Mewhinney & Strauss
Texas
$384M +$202M +2,644,431 +93%
Vanguard Portfolio Management
5
Vanguard Portfolio Management
Pennsylvania
$383M -$1.5M -19,642 -0.4%
State Street
6
State Street
Massachusetts
$287M -$71.6M -935,362 -19%
Fidelity Investments
7
Fidelity Investments
Massachusetts
$262M +$126M +1,650,112 +78%
UBS AM
8
UBS AM
Illinois
$249M +$6.38M +83,360 +2%
Invesco
9
Invesco
Georgia
$223M -$29.3M -383,478 -11%
Geode Capital Management
10
Geode Capital Management
Massachusetts
$171M -$1.81M -23,711 -1%
First Trust Advisors
11
First Trust Advisors
Illinois
$171M -$44.4M -580,354 -19%
Impax Asset Management Group
12
Impax Asset Management Group
United Kingdom
$149M +$57.1M +745,672 +54%
Qube Research & Technologies (QRT)
13
Qube Research & Technologies (QRT)
United Kingdom
$148M +$128M +1,677,626 +380%
Arrowstreet Capital
14
Arrowstreet Capital
Massachusetts
$146M +$142M +1,858,355 +779%
Norges Bank
15
Norges Bank
Norway
$129M +$142M +1,853,035 New
AQR Capital Management
16
AQR Capital Management
Connecticut
$124M +$56.2M +734,156 +69%
D.E. Shaw & Co
17
D.E. Shaw & Co
New York
$119M +$49.7M +648,929 +61%
UBS Group
18
UBS Group
Switzerland
$118M +$20.6M +269,798 +19%
Dimensional Fund Advisors
19
Dimensional Fund Advisors
Texas
$115M +$19.4M +253,225 +18%
Morgan Stanley
20
Morgan Stanley
New York
$114M -$3.14M -41,040 -2%
Manulife (Manufacturers Life Insurance)
21
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$94.4M +$10.1M +131,505 +11%
Millennium Management
22
Millennium Management
New York
$92.2M +$41.1M +537,268 +69%
Amundi
23
Amundi
France
$91.7M +$6.6M +86,227 +7%
Bank of New York Mellon
24
Bank of New York Mellon
New York
$79.5M -$12.2M -159,235 -12%
Northern Trust
25
Northern Trust
Illinois
$78.6M -$64.2M -838,826 -43%

ACM Hedge Fund Activity: Q2 2026 in Review

568 of the 8,279 institutional investors tracked by Wall St. Rank reported a position in Aecom (ACM) for Q2 2026, worth a combined $8.35B — down 13% from $9.63B a quarter earlier.

Sellers outnumbered buyers: 127 funds closed out of ACM and 82 opened new positions — a net loss of 45 holders — while 235 trimmed existing stakes and 184 added.

The largest buyer was Barrow, Hanley, Mewhinney & Strauss, adding an estimated $202M. The largest seller was Pictet Asset Management, cutting an estimated $151M.

  • 568 institutional investors held Aecom (ACM) as of Q2 2026, down from 622 in Q1 2026.
  • Funds reported $8.35B of Aecom stock for Q2 2026, down 13% quarter-over-quarter.
  • 82 funds opened new Aecom positions in Q2 2026 and 127 closed out, a net change of -45 holders.
  • The largest Aecom buyer in Q2 2026 was Barrow, Hanley, Mewhinney & Strauss, an estimated $202M added.
  • The largest Aecom seller in Q2 2026 was Pictet Asset Management, an estimated $151M sold.

Based on aggregated 13F filings for Q2 2026.