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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
Mercer Global Advisors
176
Mercer Global Advisors
Colorado
$257K +$248K +4,718 New
SLAM
177
Swiss Life Asset Management
$252K -$5.16K -98 -2%
ECM
178
Evergreen Capital Management
Washington
$245K – – –
ETC
179
Exchange Traded Concepts
Oklahoma
$245K -$40.5K -769 -15%
Cetera Investment Advisers
180
Cetera Investment Advisers
Illinois
$241K +$233K +4,433 New
Pictet Asset Management
181
Pictet Asset Management
Switzerland
$236K – – –
ProShare Advisors
182
ProShare Advisors
Maryland
$227K -$54.8K -1,040 -20%
PAM
183
Panagora Asset Management
Massachusetts
$220K -$1.02M -19,381 -83%
Marshall Wace
184
Marshall Wace
United Kingdom
$218K +$211K +3,998 New
MSRPS
185
Maryland State Retirement & Pension System
Maryland
$207K +$201K +3,810 New
Ensign Peak Advisors
186
Ensign Peak Advisors
Utah
$166K – – –
PNC Financial Services Group
187
PNC Financial Services Group
Pennsylvania
$164K +$17.6K +334 +12%
TRCT
188
Tower Research Capital (TRC)
New York
$145K +$120K +2,281 +596%
AIP
189
Ameritas Investment Partners
Nebraska
$122K – – –
TFA
190
Transamerica Financial Advisors
Florida
$110K +$64K +1,216 +152%
W
191
WealthCollab
Washington
$101K – – –
QCG
192
Quadrant Capital Group
Ohio
$82.6K +$9.48K +180 +13%
Royal Bank of Canada
193
Royal Bank of Canada
Ontario, Canada
$76K -$34.6K -657 -32%
QT
194
Quantbot Technologies
New York
$68.1K -$350K -6,651 -84%
GI
195
GAMMA Investing
California
$64.3K +$2.58K +49 +4%
SEP
196
Signature Equity Partners
Ohio
$51.5K -$5.58K -106 -10%
EWA
197
EverSource Wealth Advisors
Alabama
$41.7K -$105 -2 -0.3%
Osaic Holdings
198
Osaic Holdings
Arizona
$41.5K +$24.9K +472 +163%
S
199
SignatureFD
Georgia
$40.7K +$1.63K +31 +4%
Ohio Public Employees Retirement System (OPERS)
200
Ohio Public Employees Retirement System (OPERS)
Ohio
$35.2K -$6.74K -128 -17%
6 7
8
9 10

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.