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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
AB
151
Amalgamated Bank
New York
$415K -$4.69K -89 -1%
GCP
152
GSA Capital Partners
United Kingdom
$415K +$402K +7,635 New
Raymond James Financial
153
Raymond James Financial
Florida
$402K +$389K +7,388 New
BHCM
154
Brevan Howard Capital Management
Jersey
$394K -$135K -2,560 -26%
TI
155
Tidal Investments
Wisconsin
$384K +$371K +7,053 New
YCM
156
Yousif Capital Management
Michigan
$383K -$5.63K -107 -1%
PFSRSONJ
157
Police & Firemen's Retirement System of New Jersey
New Jersey
$380K – – –
FHA
158
Flagship Harbor Advisors
Massachusetts
$374K +$361K +6,863 +98,043%
IC
159
IEQ Capital
California
$372K +$360K +6,839 New
MP
160
Mangrove Partners
Connecticut
$372K -$103K -1,958 -22%
TRSOTSOK
161
Teachers Retirement System of the State of Kentucky
Kentucky
$363K -$10.5K -200 -3%
COPPSERS
162
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$356K -$369 -7 -0.1%
AWP
163
Abacus Wealth Partners
California
$354K – – –
MIM
164
Morningstar Investment Management
Illinois
$337K +$326K +6,188 New
VIA
165
Vanguard Investments Australia
Australia
$333K +$323K +6,127 New
OPERF
166
Oregon Public Employees Retirement Fund
Oregon
$331K – – –
Cerity Partners
167
Cerity Partners
New York
$325K +$11.8K +225 +4%
Neuberger Berman Group
168
Neuberger Berman Group
New York
$311K -$1.74K -33 -0.6%
IFWM
169
Institute for Wealth Management
Colorado
$302K -$33K -627 -10%
JF
170
JMN Financial
Ohio
$298K -$11.4K -217 -4%
Pathstone Holdings
171
Pathstone Holdings
New Jersey
$285K +$275K +5,230 New
EC
172
EJF Capital
Virginia
$280K – – –
Bank of Montreal
173
Bank of Montreal
Ontario, Canada
$271K -$164K -3,123 -39%
XT
174
XTX Topco
Cayman Islands
$268K -$828K -15,722 -76%
Carson Wealth (CWM LLC)
175
Carson Wealth (CWM LLC)
Nebraska
$267K +$43.2K +820 +20%
5 6
7
8 9

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.