Affiliated Managers Group, Inc.
AMG- Exchange
- NYSE
- Industry
- Investment Advice
- SEC CIK
- 0001004434
No open-market purchases or sales by Affiliated Managers Group, Inc. insiders were filed in the last 90 days; 567 institutions reported holding it in 13F filings for Q2 2026, worth $8.53B in total; Southeastern Asset Management (Longleaf) is the only superinvestor holding it.
13F holders, Q1 2025
Institutional positions in Affiliated Managers Group, Inc. as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 396
- −9 vs. Q4 2024
- Shares held
- 27.7M
- −553.7K (−2.0%) vs. Q4 2024
- Total value
- $4.65B
- −$537.1M (−10.4%) vs. Q4 2024
- New holders
- 39
- 114 more added
- Sold out
- 48
- 169 more reduced
3 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting AMG on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 567 | $8.53B |
| Q1 2026 | 548 | $6.88B |
| Q4 2025 | 511 | $7.47B |
| Q3 2025 | 451 | $6.32B |
| Q2 2025 | 432 | $5.28B |
| Q1 2025 | 396 | $4.65B |
| Q4 2024 | 408 | $5.21B |
| Q3 2024 | 422 | $5.04B |
| Q2 2024 | 407 | $4.57B |
| Q1 2024 | 403 | $5.10B |
| Q4 2023 | 386 | $4.77B |
| Q3 2023 | 360 | $4.16B |
| Q2 2023 | 381 | $4.94B |
| Q1 2023 | 388 | $4.92B |
| Q4 2022 | 367 | $5.50B |
| Q3 2022 | 329 | $4.06B |
| Q2 2022 | 311 | $4.33B |
| Q1 2022 | 335 | $5.32B |
| Q4 2021 | 365 | $6.45B |
| Q3 2021 | 335 | $6.04B |
| Q2 2021 | 340 | $6.34B |
| Q1 2021 | 320 | $6.28B |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding Affiliated Managers Group, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Prana Capital Management, LP | 0 | $0 | 0.00% | −20,458−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −19,630−100.0% | Sold out |
| Cinctive Capital Management LP | 0 | $0 | 0.00% | −17,328−100.0% | Sold out |
| Pinebridge Investments, L.P. | 0 | $0 | 0.00% | −12,857−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −12,616−100.0% | Sold out |
| First Hawaiian Bank | 0 | $0 | 0.00% | −9,079−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −6,911−100.0% | Sold out |
| Holocene Advisors, LP | 0 | $0 | 0.00% | −6,616−100.0% | Sold out |
| Invst, LLC | 0 | $0 | 0.00% | −5,306−100.0% | Sold out |
| Kathmere Capital Management, LLC | 0 | $0 | 0.00% | −3,535−100.0% | Sold out |
| Cornercap Investment Counsel Inc | 0 | $0 | 0.00% | −3,229−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −2,847−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −2,712−100.0% | Sold out |
| AE Wealth Management LLC | 0 | $0 | 0.00% | −2,152−100.0% | Sold out |
| Empirical Asset Management, LLC | 0 | $0 | 0.00% | −190,360−100.0% | Sold out |
| Crossmark Global Holdings, Inc. | 0 | $0 | 0.00% | −1,843−100.0% | Sold out |
| RSM US Wealth Management LLC | 0 | $0 | 0.00% | −1,552−100.0% | Sold out |
| Callan Family Office, LLC | 0 | $0 | 0.00% | −1,293−100.0% | Sold out |
| NorthRock Partners, LLC | 0 | $0 | 0.00% | −1,193−100.0% | Sold out |
| QRG Capital Management, Inc. | 0 | $0 | 0.00% | −1,189−100.0% | Sold out |
| Atlanta Consulting Group Advisors, LLC | 0 | $0 | 0.00% | −1,150−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −1,148−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −1,133−100.0% | Sold out |
| Shelton Capital Management | 0 | $0 | 0.00% | −1,125−100.0% | Sold out |
| Lingohr & Partner Asset Management GmbH | 0 | $0 | 0.00% | −1,100−100.0% | Sold out |
| Kapitalo Investimentos Ltda | 0 | $0 | 0.00% | −475−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −449−100.0% | Sold out |
| New Age Alpha Advisors, LLC | 0 | $0 | 0.00% | −379−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −303−100.0% | Sold out |
| Venturi Wealth Management, LLC | 0 | $0 | 0.00% | −265−100.0% | Sold out |
| Eagle Bay Advisors LLC | 0 | $0 | 0.00% | −41−100.0% | Sold out |
| LGT Financial Advisors LLC | 0 | $0 | 0.00% | −18−100.0% | Sold out |
| Westend Capital Management, LLC | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| Lee Danner & Bass Inc | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Motco | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Headlands Technologies LLC | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Larson Financial Group LLC | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| HHM Wealth Advisors, LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Raleigh Capital Management Inc. | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Winch Advisory Services, LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| REAP Financial Group, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Wood Tarver Financial Group, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |
| Vise Technologies, Inc. | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |