Affiliated Managers Group
509 hedge funds and large institutions have $7.46B invested in Affiliated Managers Group in 2025 Q4 according to their latest regulatory filings, with 100 funds opening new positions, 144 increasing their positions, 170 reducing their positions, and 31 closing their positions.
721% more call options, than puts
Call options by funds: $22M | Put options by funds: $2.68M
223% more first-time investments, than exits
New positions opened: 100 | Existing positions closed: 31
18% more capital invested
Capital invested by funds: $6.32B → $7.46B (+$1.15B)
13% more funds holding
Funds holding: 450 → 509 (+59)
0% more funds holding in top 10
Funds holding in top 10: 7 → 7 (0)
1.15% less ownership
Funds ownership: 93.22% → 92.06% (-1.2%)
15% less repeat investments, than reductions
Existing positions increased: 144 | Existing positions reduced: 170
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Artisan Partners
Milwaukee,
Wisconsin
|
+$33.6M |
| 2 |
Fuller & Thaler Asset Management
San Mateo,
California
|
+$29.8M |
| 3 |
EGM
Engineers Gate Manager
New York
|
+$23.1M |
| 4 |
Lord, Abbett & Co
Jersey City,
New Jersey
|
+$20M |
| 5 |
Loomis, Sayles & Company
Boston,
Massachusetts
|
+$19.2M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
CCP
Clarkston Capital Partners
Rochester,
Michigan
|
-$84.8M |
| 2 |
Citadel Advisors
Miami,
Florida
|
-$84.2M |
| 3 |
Morgan Stanley
New York
|
-$60.9M |
| 4 |
Millennium Management
New York
|
-$57.1M |
| 5 |
Alyeska Investment Group
Chicago,
Illinois
|
-$38.7M |
AMG Hedge Fund Activity: Q4 2025 in Review
509 of the 8,266 institutional investors tracked by Wall St. Rank reported a position in Affiliated Managers Group (AMG) for Q4 2025, worth a combined $7.46B — up 18% from $6.32B a quarter earlier.
Buyers outnumbered sellers: 100 funds opened new AMG positions and 31 closed out — a net gain of 69 holders — while 144 added to existing stakes and 170 trimmed.
The largest buyer was Artisan Partners, opening a new position worth an estimated $33.6M. The largest seller was Clarkston Capital Partners, cutting an estimated $84.8M.
- 509 institutional investors held Affiliated Managers Group (AMG) as of Q4 2025, up from 450 in Q3 2025.
- Funds reported $7.46B of Affiliated Managers Group stock for Q4 2025, up 18% quarter-over-quarter.
- 100 funds opened new Affiliated Managers Group positions in Q4 2025 and 31 closed out, a net change of +69 holders.
- The largest Affiliated Managers Group buyer in Q4 2025 was Artisan Partners, an estimated $33.6M added.
- The largest Affiliated Managers Group seller in Q4 2025 was Clarkston Capital Partners, an estimated $84.8M sold.
Based on aggregated 13F filings for Q4 2025.