AFFILIATED MANAGERS GROUP, INC. AMG
CIK 0001004434 · CUSIP 008252108
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $672.81M 2,821,855 shares | 0.01% | -845(0.00%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $660.99M 2,772,278 shares | 0.01% | -39.84K(-1.40%)Reduced | SEC filing ↗ Nov 7, 2025 | ▾ |
| 03 | MORGAN STANLEY CIK 895421 · Amended · View history | $462.92M 1,941,518 shares | 0.03% | -75.98K(-3.80%)Reduced | SEC filing ↗ May 27, 2026 | ▾ |
| 04 | ARIEL INVESTMENTS, LLC CIK 936753 · View history | $301.33M 1,263,824 shares | 3.22% | -91.25K(-6.70%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 05 | Clarkston Capital Partners, LLC CIK 1562855 · View history | $293.83M 1,232,333 shares | 6.33% | -203.02K(-14.10%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 06 | Boston Partners CIK 1386060 · View history | $275.96M 1,157,344 shares | 0.28% | +24.22K(+2.10%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 07 | MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history | $242.51M 1,017,113 shares | 0.19% | -552.21K(-35.20%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 08 | STATE STREET CORP CIK 93751 · View history | $229.78M 963,708 shares | 0.01% | -17.18K(-1.80%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 09 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $163.11M 684,116 shares | 0.04% | +7.89K(+1.20%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 10 | CITADEL ADVISORS LLC CIK 1423053 · View history | $153.82M 645,141 shares | 0.12% | +5.35K(+0.80%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 11 | LYRICAL ASSET MANAGEMENT LP CIK 1542302 · View history | $138.25M 579,835 shares | 1.95% | +40.80K(+7.60%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 12 | FULLER & THALER ASSET MANAGEMENT, INC. CIK 1082327 · View history | $135.97M 570,275 shares | 0.46% | -582(-0.10%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 13 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $121.58M 509,831 shares | 0.01% | +5.47K(+1.10%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 14 | LSV ASSET MANAGEMENT CIK 1050470 · View history | $114.36M 479,624 shares | 0.25% | +3.40K(+0.70%)Added | SEC filing ↗ Nov 6, 2025 | ▾ |
| 15 | Channing Capital Management, LLC CIK 1302404 · View history | $101.34M 425,037 shares | 2.67% | -5.43K(-1.30%)Reduced | SEC filing ↗ Nov 10, 2025 | ▾ |
| 16 | Allianz Asset Management GmbH CIK 1535323 · View history | $93.74M 393,161 shares | 0.12% | +50.22K(+14.60%)Added | SEC filing ↗ Nov 4, 2025 | ▾ |
| 17 | UBS Group AG CIK 1610520 · View history | $83.50M 350,212 shares | 0.02% | +172.77K(+97.40%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 18 | Balyasny Asset Management L.P. CIK 1218710 · View history | $80.13M 336,063 shares | 0.16% | +24.68K(+7.90%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 19 | NORTHERN TRUST CORP CIK 73124 · View history | $79.72M 334,368 shares | 0.01% | -783(-0.20%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $74.53M 312,568 shares | 0.01% | +1.20K(+0.40%)Added | SEC filing ↗ Nov 10, 2025 | ▾ |
Showing 20 / 451 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 451 reporting institutions.
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