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AAMI

Acadian Asset Management

218 hedge funds and large institutions have $1.26B invested in Acadian Asset Management in 2025 Q2 according to their latest regulatory filings, with 46 funds opening new positions, 66 increasing their positions, 80 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed

300% more funds holding in top 10

Funds holding in top 10: 14 (+3)

156% more first-time investments, than exits

New positions opened: 46 | Existing positions closed: 18

36% more capital invested

Capital invested by funds: $930M → $1.26B (+$331M)

14% more funds holding

Funds holding: 191218 (+27)

4.14% more ownership

Funds ownership: 95.85%99.98% (+4.1%)

18% less repeat investments, than reductions

Existing positions increased: 66 | Existing positions reduced: 80

60% less call options, than puts

Call options by funds: $14K | Put options by funds: $35K

Holders
218
Holders Change
+27
Holders Change %
+14.14%
% of All Funds
2.87%
Holding in Top 10
4
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+300%
% of All Funds
0.05%
New
46
Increased
66
Reduced
80
Closed
18
Calls
$14K
Puts
$35K
Net Calls
-$21K
Net Calls Change
-$158K
Name Holding Trade Value Shares
Change
Change in
Stake
PC
1
Paulson & Co
New York
$315M
BlackRock
2
BlackRock
New York
$180M -$9.84M -338,594 -6%
Vanguard Group
3
Vanguard Group
Pennsylvania
$83.9M +$1.05M +36,177 +2%
Jennison Associates
4
Jennison Associates
New York
$73.7M +$20.9M +718,478 +52%
ECP
5
Empyrean Capital Partners
California
$66.3M
State Street
6
State Street
Massachusetts
$42.8M +$436K +15,014 +1%
Impax Asset Management Group
7
Impax Asset Management Group
United Kingdom
$35.2M -$2.91M -100,000 -9%
Dimensional Fund Advisors
8
Dimensional Fund Advisors
Texas
$34.4M -$2.48M -85,240 -8%
William Blair Investment Management
9
William Blair Investment Management
Illinois
$25.1M -$12.5M -428,343 -38%
N
10
Nuveen
North Carolina
$22.3M -$1.01M -34,617 -5%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$22.1M -$118K -4,054 -0.6%
Arrowstreet Capital
12
Arrowstreet Capital
Massachusetts
$21.5M +$2.85M +98,171 +19%
NRCM
13
North Reef Capital Management
California
$16.9M -$282K -9,697 -2%
Morgan Stanley
14
Morgan Stanley
New York
$15.8M +$741K +25,497 +6%
SFM
15
Soros Fund Management
New York
$14.6M +$2.01M +69,300 +20%
Charles Schwab
16
Charles Schwab
California
$13.7M +$1.6M +55,075 +16%
SAI
17
Systematic Alpha Investments
New Jersey
$13M
Two Sigma Advisers
18
Two Sigma Advisers
New York
$12.4M -$1.03M -35,300 -9%
Northern Trust
19
Northern Trust
Illinois
$10.7M -$198K -6,818 -2%
Victory Capital Management
20
Victory Capital Management
Texas
$10.5M -$7.61M -261,953 -47%
Federated Hermes
21
Federated Hermes
Pennsylvania
$10.2M -$566K -19,486 -6%
Two Sigma Investments
22
Two Sigma Investments
New York
$8.67M -$281K -9,675 -4%
Invesco
23
Invesco
Georgia
$8.61M +$2.06M +70,700 +41%
UBS Group
24
UBS Group
Switzerland
$8.12M +$4.5M +154,860 +205%
Bank of New York Mellon
25
Bank of New York Mellon
New York
$7.94M -$12K -413 -0.2%

AAMI Hedge Fund Activity: Q2 2025 in Review

218 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Acadian Asset Management (AAMI) for Q2 2025, worth a combined $1.26B — up 36% from $930M a quarter earlier.

Buyers outnumbered sellers: 46 funds opened new AAMI positions and 18 closed out — a net gain of 28 holders — while 66 added to existing stakes and 80 trimmed.

The largest buyer was Jennison Associates, adding an estimated $20.9M. The largest seller was William Blair Investment Management, cutting an estimated $12.5M.

  • 218 institutional investors held Acadian Asset Management (AAMI) as of Q2 2025, up from 191 in Q1 2025.
  • Funds reported $1.26B of Acadian Asset Management stock for Q2 2025, up 36% quarter-over-quarter.
  • 46 funds opened new Acadian Asset Management positions in Q2 2025 and 18 closed out, a net change of +28 holders.
  • The largest Acadian Asset Management buyer in Q2 2025 was Jennison Associates, an estimated $20.9M added.
  • The largest Acadian Asset Management seller in Q2 2025 was William Blair Investment Management, an estimated $12.5M sold.

Based on aggregated 13F filings for Q2 2025.