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AAMI

Acadian Asset Management
AAMI

257 hedge funds and large institutions have $1.96B invested in Acadian Asset Management in 2026 Q1 according to their latest regulatory filings, with 38 funds opening new positions, 89 increasing their positions, 88 reducing their positions, and 34 closing their positions.

New
Increased
Maintained
Reduced
Closed

50% more funds holding in top 10

Funds holding in top 10: 2 → 3 (+1)

17% more capital invested

Capital invested by funds: $1.67B → $1.96B (+$290M)

12% more first-time investments, than exits

New positions opened: 38 | Existing positions closed: 34

1.37% more ownership

Funds ownership: 99.26% → 100.64% (+1.4%)

1% more repeat investments, than reductions

Existing positions increased: 89 | Existing positions reduced: 88

0% more funds holding

Funds holding: 257 → 257 (0)

100% less call options, than puts

Call options by funds: $0 | Put options by funds: $201K

Holders
257
Holders Change
–
Holders Change %
0%
% of All Funds
3.16%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.04%
New
38
Increased
89
Reduced
88
Closed
34
Calls
–
Puts
$201K
Net Calls
-$201K
Net Calls Change
-$196K

Top Buyers

1
ACL
Azora Capital LP
Florida
+$17.3M
2
BTW
Boston Trust Walden
Massachusetts
+$14.8M
3
SG Americas Securities
SG Americas Securities
New York
+$12.9M
4
Two Sigma Investments
Two Sigma Investments
New York
+$10.3M
5
Janus Henderson Group
Janus Henderson Group
United Kingdom
+$9.63M

Top Sellers

1
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
-$14.4M
2
NRCM
North Reef Capital Management
California
-$11.8M
3
Jacobs Levy Equity Management
Jacobs Levy Equity Management
New Jersey
-$5.33M
4
ECP
Empyrean Capital Partners
California
-$5.07M
5
Tudor Investment Corp
Tudor Investment Corp
Connecticut
-$4.75M
Name Holding Trade Value Shares
Change 		Change in
Stake
LSV Asset Management
51
LSV Asset Management
Illinois
$4.48M – – –
Ameriprise
52
Ameriprise
Minnesota
$4.41M +$89.8K +1,705 +2%
Citadel Advisors
53
Citadel Advisors
Florida
$4.41M -$1.13M -21,448 -21%
American Century Companies
54
American Century Companies
Missouri
$4.4M +$183K +3,484 +5%
VA
55
Vident Advisory
Georgia
$4.28M +$3.85M +73,147 +1,331%
RhumbLine Advisers
56
RhumbLine Advisers
Massachusetts
$3.93M -$145K -2,757 -4%
Millennium Management
57
Millennium Management
New York
$3.77M -$1.03M -19,602 -22%
UBS AM
58
UBS AM
Illinois
$3.67M +$42.1K +800 +1%
Legal & General Group
59
Legal & General Group
United Kingdom
$3.5M -$345K -6,547 -9%
Victory Capital Management
60
Victory Capital Management
Texas
$3.46M -$312K -5,924 -9%
Envestnet Asset Management
61
Envestnet Asset Management
Illinois
$3.42M +$322K +6,112 +11%
KIM
62
Kestrel Investment Management
California
$3.39M -$42.1K -800 -1%
Renaissance Technologies
63
Renaissance Technologies
New York
$3.29M -$1.99M -37,784 -38%
LTAS
64
Linden Thomas Advisory Services
North Carolina
$3.24M +$1.55M +29,371 +98%
Credit Agricole
65
Credit Agricole
France
$3.18M – – –
Boston Partners
66
Boston Partners
Massachusetts
$3.13M +$127K +2,409 +4%
Swiss National Bank
67
Swiss National Bank
Switzerland
$3.08M – – –
D.E. Shaw & Co
68
D.E. Shaw & Co
New York
$3.07M -$3.09M -58,676 -51%
Franklin Resources
69
Franklin Resources
California
$2.95M +$593K +11,258 +26%
EGM
70
Engineers Gate Manager
New York
$2.87M +$139K +2,636 +5%
ZIM
71
Zacks Investment Management
Illinois
$2.77M +$637K +12,104 +31%
Assenagon Asset Management
72
Assenagon Asset Management
Luxembourg
$2.49M +$2.41M +45,836 New
HSA
73
Hussman Strategic Advisors
Maryland
$2.29M +$2.21M +42,000 New
EI
74
EFG International
$2.25M +$2.18M +41,435 New
State Board of Administration of Florida Retirement System
75
State Board of Administration of Florida Retirement System
Florida
$2.2M +$929K +17,647 +77%
1 2
3
4 5

AAMI Hedge Fund Activity: Q1 2026 in Review

257 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Acadian Asset Management (AAMI) for Q1 2026, worth a combined $1.96B — up 17% from $1.67B a quarter earlier.

Buyers outnumbered sellers: 38 funds opened new AAMI positions and 34 closed out — a net gain of 4 holders — while 89 added to existing stakes and 88 trimmed.

The largest buyer was Azora Capital LP, opening a new position worth an estimated $17.3M. The largest seller was Arrowstreet Capital, cutting an estimated $14.4M.

  • 257 institutional investors held Acadian Asset Management (AAMI) as of Q1 2026, unchanged from Q4 2025.
  • Funds reported $1.96B of Acadian Asset Management stock for Q1 2026, up 17% quarter-over-quarter.
  • 38 funds opened new Acadian Asset Management positions in Q1 2026 and 34 closed out, a net change of +4 holders.
  • The largest Acadian Asset Management buyer in Q1 2026 was Azora Capital LP, an estimated $17.3M added.
  • The largest Acadian Asset Management seller in Q1 2026 was Arrowstreet Capital, an estimated $14.4M sold.

Based on aggregated 13F filings for Q1 2026.