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 | $555.42M 2,822,700 shares | 0.01% | -113.08K(-3.90%)Reduced | SEC filing ↗ Aug 12, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $553.34M 2,812,114 shares | 0.01% | -182.44K(-6.10%)Reduced | SEC filing ↗ Aug 11, 2025 | ▾ |
| 03 | MORGAN STANLEY CIK 895421 · View history | $396.98M 2,017,494 shares | 0.03% | -277.04K(-12.10%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 04 | MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history | $308.80M 1,569,326 shares | 0.28% | +303.67K(+24.00%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 05 | Clarkston Capital Partners, LLC CIK 1562855 · View history | $282.43M 1,435,354 shares | 6.00% | -149.97K(-9.50%)Reduced | SEC filing ↗ Aug 13, 2025 | ▾ |
| 06 | ARIEL INVESTMENTS, LLC CIK 936753 · View history | $266.64M 1,355,075 shares | 3.02% | -52.08K(-3.70%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 07 | Boston Partners CIK 1386060 · Amended · View history | $223.01M 1,133,127 shares | 0.25% | -21.66K(-1.90%)Reduced | SEC filing ↗ Aug 12, 2025 | ▾ |
| 08 | STATE STREET CORP CIK 93751 · View history | $193.01M 980,889 shares | 0.01% | -17.04K(-1.70%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 09 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $133.06M 676,225 shares | 0.03% | -33.14K(-4.70%)Reduced | SEC filing ↗ Aug 12, 2025 | ▾ |
| 10 | CITADEL ADVISORS LLC CIK 1423053 · View history | $125.89M 639,788 shares | 0.11% | +284.96K(+80.30%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 11 | FULLER & THALER ASSET MANAGEMENT, INC. CIK 1082327 · View history | $112.33M 570,857 shares | 0.41% | +15.63K(+2.80%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 12 | LYRICAL ASSET MANAGEMENT LP CIK 1542302 · View history | $106.07M 539,040 shares | 1.53% | -67.21K(-11.10%)Reduced | SEC filing ↗ Aug 12, 2025 | ▾ |
| 13 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $99.26M 504,358 shares | 0.01% | -38.34K(-7.10%)Reduced | SEC filing ↗ Aug 8, 2025 | ▾ |
| 14 | LSV ASSET MANAGEMENT CIK 1050470 · View history | $93.71M 476,224 shares | 0.22% | +8.14K(+1.70%)Added | SEC filing ↗ Aug 11, 2025 | ▾ |
| 15 | Channing Capital Management, LLC CIK 1302404 · View history | $84.70M 430,464 shares | 2.36% | -13.73K(-3.10%)Reduced | SEC filing ↗ Aug 13, 2025 | ▾ |
| 16 | NORGES BANK CIK 1374170 · View history | $71.78M 364,786 shares | 0.01% | +12.11K(+3.40%)Added | SEC filing ↗ Aug 13, 2025 | ▾ |
| 17 | Allianz Asset Management GmbH CIK 1535323 · View history | $67.48M 342,942 shares | 0.09% | +33.41K(+10.80%)Added | SEC filing ↗ Jul 28, 2025 | ▾ |
| 18 | NORTHERN TRUST CORP CIK 73124 · View history | $65.95M 335,151 shares | 0.01% | -50.14K(-13.00%)Reduced | SEC filing ↗ Aug 13, 2025 | ▾ |
| 19 | Balyasny Asset Management L.P. CIK 1218710 · View history | $61.27M 311,383 shares | 0.14% | +303.42K(+3,811.80%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $61.27M 311,367 shares | 0.01% | -7.10K(-2.20%)Reduced | SEC filing ↗ Aug 12, 2025 | ▾ |
Showing 20 / 435 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.
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