AMG icon

Affiliated Managers Group

443 hedge funds and large institutions have $6.3B invested in Affiliated Managers Group in 2025 Q3 according to their latest regulatory filings, with 59 funds opening new positions, 139 increasing their positions, 163 reducing their positions, and 37 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more capital invested

Capital invested by funds: $ → $

more funds holding in top 10

Funds holding in top 10:

3% more funds holding

Funds holding: 431443 (+12)

1.44% less ownership

Funds ownership: 94.37%92.93% (-1.4%)

15% less repeat investments, than reductions

Existing positions increased: 139 | Existing positions reduced: 163

Holders
443
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
7
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$4.08M
Puts
$3.1M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Nisa Investment Advisors
151
Nisa Investment Advisors
Missouri
$1.9M
LSERS
152
Louisiana State Employees Retirement System
Louisiana
$1.88M
DT
153
Diversified Trust
Tennessee
$1.88M
Cetera Investment Advisers
154
Cetera Investment Advisers
Illinois
$1.88M
American Century Companies
155
American Century Companies
Missouri
$1.88M
OSAM
156
O'Shaughnessy Asset Management
Connecticut
$1.84M
CB
157
Commerce Bank
Missouri
$1.8M
WCM
158
Wedge Capital Management
North Carolina
$1.79M
Two Sigma Investments
159
Two Sigma Investments
New York
$1.79M
Creative Planning
160
Creative Planning
Kansas
$1.78M
Zurich Cantonal Bank
161
Zurich Cantonal Bank
Switzerland
$1.76M
COPPSERS
162
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$1.74M
Walleye Capital
163
Walleye Capital
New York
$1.73M
CSS
164
Cubist Systematic Strategies
Connecticut
$1.72M
KCM
165
Kennondale Capital Management
Virginia
$1.66M
STA
166
Summit Trail Advisors
New York
$1.63M
SAM
167
Southeastern Asset Management
Tennessee
$1.63M
KIM
168
Kestra Investment Management
Texas
$1.62M
SOMRS
169
State of Michigan Retirement System
Michigan
$1.6M
IP
170
Interval Partners
New York
$1.6M
QT
171
Quantbot Technologies
New York
$1.56M
NMERB
172
New Mexico Educational Retirement Board
New Mexico
$1.55M
CIA
173
Citadel Investment Advisory
Ohio
$1.53M
NMIMC
174
Northwestern Mutual Investment Management Company
Wisconsin
$1.51M
LPL Financial
175
LPL Financial
California
$1.48M