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Affiliated Managers Group

450 hedge funds and large institutions have $6.32B invested in Affiliated Managers Group in 2025 Q3 according to their latest regulatory filings, with 59 funds opening new positions, 141 increasing their positions, 163 reducing their positions, and 36 closing their positions.

New
Increased
Maintained
Reduced
Closed

64% more first-time investments, than exits

New positions opened: 59 | Existing positions closed: 36

32% more call options, than puts

Call options by funds: $4.08M | Put options by funds: $3.1M

20% more capital invested

Capital invested by funds: $5.28B → $6.32B (+$1.03B)

17% more funds holding in top 10

Funds holding in top 10: 67 (+1)

4% more funds holding

Funds holding: 433450 (+17)

1.24% less ownership

Funds ownership: 94.46%93.22% (-1.2%)

13% less repeat investments, than reductions

Existing positions increased: 141 | Existing positions reduced: 163

Holders
450
Holders Change
+17
Holders Change %
+3.93%
% of All Funds
5.91%
Holding in Top 10
7
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+16.67%
% of All Funds
0.09%
New
59
Increased
141
Reduced
163
Closed
36
Calls
$4.08M
Puts
$3.1M
Net Calls
+$978K
Net Calls Change
-$3.31M
Name Holding Trade Value Shares
Change
Change in
Stake
Teacher Retirement System of Texas
151
Teacher Retirement System of Texas
Texas
$2.1M +$63.7K +289 +3%
KK
152
KLP Kapitalforvaltning
Norway
$2.05M -$287K -1,300 -13%
ASRS
153
Arizona State Retirement System
Arizona
$2.01M +$2.87K +13 +0.2%
Nisa Investment Advisors
154
Nisa Investment Advisors
Missouri
$1.9M -$220 -1 -0%
LSERS
155
Louisiana State Employees Retirement System
Louisiana
$1.88M -$22K -100 -1%
DT
156
Diversified Trust
Tennessee
$1.88M
Cetera Investment Advisers
157
Cetera Investment Advisers
Illinois
$1.88M +$484K +2,195 +39%
American Century Companies
158
American Century Companies
Missouri
$1.88M -$152K -688 -8%
OSAM
159
O'Shaughnessy Asset Management
Connecticut
$1.84M +$412K +1,870 +32%
CB
160
Commerce Bank
Missouri
$1.8M
WCM
161
Wedge Capital Management
North Carolina
$1.79M -$221K -1,001 -12%
Two Sigma Investments
162
Two Sigma Investments
New York
$1.79M +$1.65M +7,495 New
Creative Planning
163
Creative Planning
Kansas
$1.78M +$256K +1,162 +18%
Zurich Cantonal Bank
164
Zurich Cantonal Bank
Switzerland
$1.76M +$102K +464 +7%
COPPSERS
165
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$1.74M -$2.65K -12 -0.2%
Walleye Capital
166
Walleye Capital
New York
$1.73M +$1.6M +7,265 New
CSS
167
Cubist Systematic Strategies
Connecticut
$1.72M +$211K +958 +15%
SIA
168
SkyView Investment Advisors
New Jersey
$1.69M +$20.3K +92 +1%
KCM
169
Kennondale Capital Management
Virginia
$1.66M +$459K +2,084 +43%
STA
170
Summit Trail Advisors
New York
$1.63M +$891K +4,044 +145%
SAM
171
Southeastern Asset Management
Tennessee
$1.63M
KIM
172
Kestra Investment Management
Texas
$1.62M -$1.66M -7,547 -53%
SOMRS
173
State of Michigan Retirement System
Michigan
$1.6M -$22K -100 -1%
IP
174
Interval Partners
New York
$1.6M -$3.51M -15,913 -70%
QT
175
Quantbot Technologies
New York
$1.56M +$943K +4,277 +188%