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, Q2 2021
Institutional positions in Affiliated Managers Group, Inc. as of Jun 30, 2021. 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
- 340
- +20 vs. Q1 2021
- Shares held
- 41.1M
- −1.05M (−2.5%) vs. Q1 2021
- Total value
- $6.34B
- +$55.6M (+0.9%) vs. Q1 2021
- New holders
- 55
- 87 more added
- Sold out
- 35
- 132 more reduced
Compare with Q1 2021: 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, Q2 2021
Shares, value and share of portfolio for each institution holding Affiliated Managers Group, Inc.; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Silvercrest Asset Management Group LLC | 2,400 | $370.0K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 2,401 | $370.0K | 0.12% | +181+8.2% | Added |
| KB Financial Partners, LLC | 2,462 | $380.0K | 0.14% | +638+35.0% | Added |
| Harbor Advisors LLC | 2,500 | $386.0K | 0.08% | 00.0% | Unchanged |
| Procyon Private Wealth Partners, LLC | 2,501 | $386.0K | 0.11% | 00.0% | Unchanged |
| AMP Capital Investors Ltd | 2,538 | $391.0K | 0.00% | −301−10.6% | Reduced |
| Relative Value Partners Group, LLC | 2,540 | $392.0K | 0.03% | 00.0% | Unchanged |
| Shell Asset Management Co | 2,551 | $393.0K | 0.01% | +1,371+116.2% | Added |
| Profund Advisors LLC | 2,647 | $409.0K | 0.01% | −15−0.6% | Reduced |
| People's United Financial, Inc. | 2,659 | $410.0K | 0.01% | +224+9.2% | Added |
| IndexIQ Advisors LLC | 2,715 | $419.0K | 0.01% | +21+0.8% | Added |
| Neuberger Berman Group LLC | 2,784 | $421.0K | 0.00% | −2,531−47.6% | Reduced |
| Walleye Trading LLC | 2,737 | $422.0K | 0.01% | +2,175+387.0% | Added |
| Pictet Asset Management Ltd | 2,900 | $447.0K | 0.00% | −400−12.1% | Reduced |
| Ironwood Investment Counsel, LLC | 2,910 | $448.0K | 0.12% | 00.0% | Unchanged |
| Meristem Family Wealth, LLC | 3,000 | $463.0K | 0.07% | 00.0% | Unchanged |
| Maryland State Retirement & Pension System | 2,823 | $471.0K | 0.02% | −773−21.5% | Reduced |
| QS Investors, LLC | 3,050 | $471.0K | 0.01% | 00.0% | Unchanged |
| Fox Run Management, L.L.C. | 3,087 | $476.0K | 0.43% | +3,087 | New |
| Quadrature Capital Ltd | 3,126 | $482.0K | 0.02% | −674−17.7% | Reduced |
| Echo Street Capital Management LLC | 3,306 | $510.0K | 0.00% | +1,062+47.3% | Added |
| Crossmark Global Holdings, Inc. | 3,352 | $517.0K | 0.01% | −180−5.1% | Reduced |
| CIBC World Markets Inc. | 3,398 | $524.0K | 0.00% | +1,658+95.3% | Added |
| FIL Ltd | 3,409 | $526.0K | 0.00% | −1,607−32.0% | Reduced |
| Duality Advisers, LP | 3,431 | $529.0K | 0.05% | +3,431 | New |
| LPL Financial LLC | 3,452 | $532.0K | 0.00% | −7−0.2% | Reduced |
| Brown Brothers Harriman & Co | 3,624 | $559.0K | 0.00% | −676−15.7% | Reduced |
| DuPont Capital Management Corp | 3,623 | $559.0K | 0.01% | +2,364+187.8% | Added |
| Boston Private Wealth LLC | 3,775 | $582.0K | 0.01% | +841+28.7% | Added |
| Meeder Asset Management Inc | 3,773 | $582.0K | 0.03% | +1,946+106.5% | Added |
| Securian Asset Management, Inc | 3,827 | $590.0K | 0.01% | −195−4.8% | Reduced |
| Guggenheim Capital LLC | 3,831 | $591.0K | 0.00% | +3,831 | New |
| Psagot Investment House Ltd. | 3,900 | $601.0K | 0.02% | +3,900 | New |
| Welch & Forbes LLC | 3,900 | $602.0K | 0.01% | 00.0% | Unchanged |
| Colony Group LLC | 3,939 | $607.0K | 0.01% | +3,939 | New |
| ETF Managers Group, LLC | 4,032 | $622.0K | 0.01% | +4,032 | New |
| Cornercap Investment Counsel Inc | 4,085 | $630.0K | 0.07% | +4,085 | New |
| Blueshift Asset Management, LLC | 4,211 | $649.0K | 0.04% | +4,211 | New |
| Panagora Asset Management Inc | 4,253 | $656.0K | 0.00% | −139−3.2% | Reduced |
| Jane Street Group, LLC | 4,260 | $657.0K | 0.00% | +4,260 | New |
| Impax Asset Management Group plc | 4,313 | $665.0K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 4,413 | $681.0K | 0.00% | −117−2.6% | Reduced |
| Pacer Advisors, Inc. | 4,494 | $693.0K | 0.01% | −54−1.2% | Reduced |
| Paloma Partners Management Co | 4,491 | $693.0K | 0.02% | +4,491 | New |
| Snow Capital Management LP | 4,582 | $707.0K | 0.10% | −990−17.8% | Reduced |
| Wellington Management Group LLP | 4,773 | $736.0K | 0.00% | +1,802+60.7% | Added |
| Rothschild Investment Corp | 4,783 | $738.0K | 0.06% | −91−1.9% | Reduced |
| Xponance, Inc. | 4,872 | $751.0K | 0.01% | +393+8.8% | Added |
| Virginia Retirement Systems Et Al | 4,900 | $756.0K | 0.01% | +4,900 | New |
| Campbell & CO Investment Adviser LLC | 4,931 | $760.0K | 0.33% | +4,931 | New |
| State of Wisconsin Investment Board | 4,957 | $764.0K | 0.00% | −753−13.2% | Reduced |
| US Bancorp | 4,968 | $766.0K | 0.00% | +4+0.1% | Added |
| Engineers Gate Manager LP | 5,005 | $772.0K | 0.05% | +895+21.8% | Added |
| Twinbeech Capital LP | 5,015 | $773.0K | 0.09% | +5,015 | New |
| Polar Asset Management Partners Inc. | 5,238 | $808.0K | 0.01% | +3,890+288.6% | Added |
| Teacher Retirement System of Texas | 5,579 | $860.0K | 0.00% | +292+5.5% | Added |
| Acadian Asset Management LLC | 5,722 | $882.0K | 0.00% | +4,766+498.5% | Added |
| Voloridge Investment Management, LLC | 5,846 | $902.0K | 0.01% | +3,198+120.8% | Added |
| CWM Advisors, LLC | 6,060 | $935.0K | 0.12% | +699+13.0% | Added |
| Raymond James Trust N.A. | 6,134 | $946.0K | 0.03% | −368−5.7% | Reduced |
| Maverick Capital LtdSuperinvestorMaverick Capital | 6,171 | $952.0K | 0.01% | +569+10.2% | Added |
| Public Employees Retirement Association of Colorado | 6,534 | $1.01M | 0.00% | 00.0% | Unchanged |
| Fisher Asset Management, LLC | 6,557 | $1.01M | 0.00% | −232−3.4% | Reduced |
| Seascape Capital Management | 6,628 | $1.02M | 0.53% | +6,628 | New |
| ProShare Advisors LLC | 6,726 | $1.04M | 0.00% | −83−1.2% | Reduced |
| Shilanski & Associates, Inc. | 6,755 | $1.04M | 0.50% | +6,755 | New |
| Bank of New Hampshire | 6,888 | $1.06M | 0.28% | +6,888 | New |
| Cubic Asset Management, LLC | 6,911 | $1.07M | 0.26% | 00.0% | Unchanged |
| Northwestern Mutual Investment Management Company, LLC | 6,935 | $1.07M | 0.02% | −175−2.5% | Reduced |
| HRT Financial LP | 6,973 | $1.07M | 0.01% | −6,872−49.6% | Reduced |
| RMB Capital Management, LLC | 7,000 | $1.08M | 0.04% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 7,012 | $1.08M | 0.12% | +7,012 | New |
| Mitsubishi UFJ Trust & Banking Corp | 7,064 | $1.09M | 0.00% | −395−5.3% | Reduced |
| Teachers Retirement System of the State of Kentucky | 7,200 | $1.11M | 0.01% | 00.0% | Unchanged |
| State of Alaska, Department of Revenue | 7,276 | $1.12M | 0.01% | −4,331−37.3% | Reduced |
| Advisor Group Holdings, Inc. | 7,534 | $1.16M | 0.00% | −1,103−12.8% | Reduced |
| Metropolitan Life Insurance Co | 7,865 | $1.21M | 0.02% | −244−3.0% | Reduced |
| Utah Retirement Systems | 7,880 | $1.22M | 0.02% | −700−8.2% | Reduced |
| Steel Peak Wealth Management LLC | 8,100 | $1.25M | 0.09% | +8,100 | New |
| Voya Investment Management LLC | 8,124 | $1.25M | 0.00% | +1,728+27.0% | Added |
| Handelsbanken Fonder AB | 8,200 | $1.26M | 0.01% | −300−3.5% | Reduced |
| NN Investment Partners Holdings N.V. | 8,509 | $1.31M | 0.01% | −1,090−11.4% | Reduced |
| Commerce Bank | 8,586 | $1.32M | 0.01% | −153−1.8% | Reduced |
| New Mexico Educational Retirement Board | 8,800 | $1.36M | 0.05% | +600+7.3% | Added |
| Bank of Montreal | 8,768 | $1.37M | 0.00% | +398+4.8% | Added |
| Federated Hermes, Inc. | 8,969 | $1.38M | 0.00% | +351+4.1% | Added |
| Regions Financial Corp | 9,256 | $1.43M | 0.01% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 9,505 | $1.47M | 0.04% | +6,801+251.5% | Added |
| Envestnet Asset Management Inc | 9,843 | $1.52M | 0.00% | −21,325−68.4% | Reduced |
| State of Michigan Retirement System | 10,466 | $1.61M | 0.01% | −5,300−33.6% | Reduced |
| Susquehanna International Group, LLP | 10,527 | $1.62M | 0.00% | +3,431+48.4% | Added |
| The PNC Financial Services Group, Inc. | 10,571 | $1.63M | 0.00% | −154−1.4% | Reduced |
| AlphaCrest Capital Management LLC | 10,678 | $1.65M | 0.07% | +10,678 | New |
| Natixis Advisors, L.P. | 10,773 | $1.66M | 0.01% | −742−6.4% | Reduced |
| Louisiana State Employees Retirement System | 10,800 | $1.67M | 0.04% | −300−2.7% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 11,029 | $1.70M | 0.00% | +11,029 | New |
| Thrivent Financial for Lutherans | 11,053 | $1.70M | 0.00% | −278−2.5% | Reduced |
| Ameritas Investment Partners, Inc. | 11,254 | $1.74M | 0.06% | −432−3.7% | Reduced |
| Ergoteles LLC | 11,333 | $1.75M | 0.04% | +11,333 | New |
| Nisa Investment Advisors, LLC | 11,485 | $1.77M | 0.01% | −800−6.5% | Reduced |