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Affiliated Managers Group
AMG

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: 6 → 7 (+1)

4% more funds holding

Funds holding: 433 → 450 (+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

Top Buyers

1
Alyeska Investment Group
Alyeska Investment Group
Illinois
+$65M
2
UBS Group
UBS Group
Switzerland
+$38.1M
3
Holocene Advisors
Holocene Advisors
New York
+$33.7M
4
Caisse de Depot et Placement du Quebec (CDPQ)
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
+$21.7M
5
Raymond James Financial
Raymond James Financial
Florida
+$16.6M

Top Sellers

1
Millennium Management
Millennium Management
New York
-$122M
2
CCP
Clarkston Capital Partners
Michigan
-$44.7M
3
BA
Bridgewater Associates
Connecticut
-$21.1M
4
AI
Ariel Investments
Illinois
-$20.1M
5
Morgan Stanley
Morgan Stanley
New York
-$16.7M
Name Holding Trade Value Shares
Change 		Change in
Stake
BBHC
201
Brown Brothers Harriman & Co
New York
$931K -$89.5K -406 -9%
Pictet Asset Management
202
Pictet Asset Management
Switzerland
$922K -$152K -690 -15%
ASN
203
Advisory Services Network
Georgia
$917K +$66.3K +301 +8%
Pacer Advisors
204
Pacer Advisors
Pennsylvania
$903K +$835K +3,788 New
Point72 Asset Management
205
Point72 Asset Management
Connecticut
$901K -$5.74M -26,021 -87%
Federated Hermes
206
Federated Hermes
Pennsylvania
$874K -$181K -823 -18%
CIS
207
Custom Index Systems
New York
$860K +$277K +1,259 +54%
KCM
208
Kendall Capital Management
Maryland
$860K -$55.1K -250 -6%
Kovitz Investment Group Partners
209
Kovitz Investment Group Partners
Illinois
$853K +$101K +457 +15%
US Bancorp
210
US Bancorp
Minnesota
$849K +$10.8K +49 +1%
WF
211
Welch & Forbes
Massachusetts
$835K – – –
GAM
212
Guinness Asset Management
United Kingdom
$819K +$52K +236 +7%
FFA
213
Farther Finance Advisors
California
$793K +$102K +461 +16%
EI
214
Ethic Inc
New York
$788K +$89.7K +407 +14%
Truist Financial
215
Truist Financial
North Carolina
$764K +$175K +794 +33%
MM
216
MQS Management
New York
$758K +$142K +643 +25%
Rockefeller Capital Management
217
Rockefeller Capital Management
New York
$757K +$700K +3,176 New
QCG
218
Quadrant Capital Group
Ohio
$757K +$14.1K +64 +2%
X
219
Xponance
Pennsylvania
$750K -$7.05K -32 -1%
CAM
220
Cresset Asset Management
Illinois
$746K +$3.09K +14 +0.4%
LCM
221
Landscape Capital Management
New Jersey
$745K +$689K +3,126 New
EGM
222
Engineers Gate Manager
New York
$740K -$108K -489 -14%
Osaic Holdings
223
Osaic Holdings
Arizona
$719K +$347K +1,575 +109%
PNC Financial Services Group
224
PNC Financial Services Group
Pennsylvania
$715K +$132K +599 +25%
RCM
225
Radnor Capital Management
Pennsylvania
$708K – – –
7 8
9
10 11

AMG Hedge Fund Activity: Q3 2025 in Review

450 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Affiliated Managers Group (AMG) for Q3 2025, worth a combined $6.32B — up 20% from $5.28B a quarter earlier.

Buyers outnumbered sellers: 59 funds opened new AMG positions and 36 closed out — a net gain of 23 holders — while 141 added to existing stakes and 163 trimmed.

The largest buyer was Alyeska Investment Group, opening a new position worth an estimated $65M. The largest seller was Millennium Management, cutting an estimated $122M.

  • 450 institutional investors held Affiliated Managers Group (AMG) as of Q3 2025, up from 433 in Q2 2025.
  • Funds reported $6.32B of Affiliated Managers Group stock for Q3 2025, up 20% quarter-over-quarter.
  • 59 funds opened new Affiliated Managers Group positions in Q3 2025 and 36 closed out, a net change of +23 holders.
  • The largest Affiliated Managers Group buyer in Q3 2025 was Alyeska Investment Group, an estimated $65M added.
  • The largest Affiliated Managers Group seller in Q3 2025 was Millennium Management, an estimated $122M sold.

Based on aggregated 13F filings for Q3 2025.