Who owns AFFILIATED MANAGERS GROUP, INC.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of AMG from SEC Form 13F filings across 564 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 564 institutions disclosed 25.2M shares of AFFILIATED MANAGERS GROUP, INC. worth $8.52B — about 95.5% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
564
13F holders
$8.52B
value, 2026 filers
95.5%
of shares outstanding (25.2M sh)
87
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of AMG's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 2.8M | $938.3M | 0.0% | 10.5% | -3.3% |
| 2 | MORGAN STANLEY | 1.5M | $503.3M | 0.0% | 5.6% | -14.2% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.4M | $471.0M | 0.0% | 5.3% | +2.4% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 1.2M | $389.5M | 0.0% | 4.4% | -2.0% |
| 5 | Boston Partners | 1.0M | $339.1M | 0.3% | 3.8% | +3.2% |
| 6 | ARIEL INVESTMENTS, LLC | 999,676 | $338.3M | 3.4% | 3.8% | -6.0% |
| 7 | STATE STREET CORP | 883,323 | $298.9M | 0.0% | 3.3% | -4.7% |
| 8 | MILLENNIUM MANAGEMENT LLC | 875,116 | $296.1M | 0.1% | 3.3% | +16202.5% |
| 9 | FULLER & THALER ASSET MANAGEMENT, INC. | 857,756 | $290.3M | 0.8% | 3.2% | +12.8% |
| 10 | DIMENSIONAL FUND ADVISORS LP | 670,195 | $226.8M | 0.0% | 2.5% | -6.7% |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 590,757 | $200.0M | 0.0% | 2.2% | -7.1% |
| 12 | LSV ASSET MANAGEMENT | 533,611 | $180.6M | 0.3% | 2% | +11.9% |
| 13 | LYRICAL ASSET MANAGEMENT LP | 472,886 | $160.0M | 2.0% | 1.8% | -5.8% |
| 14 | Allianz Asset Management GmbH | 453,989 | $153.6M | 0.1% | 1.7% | -7.1% |
| 15 | BANK OF AMERICA CORP /DE/ | 432,420 | $146.3M | 0.0% | 1.6% | +5.6% |
| 16 | Invesco Ltd. | 380,623 | $128.8M | 0.0% | 1.4% | +20.3% |
| 17 | NORGES BANKNEW | 361,473 | $122.3M | 0.0% | 1.4% | new |
| 18 | NORTHERN TRUST CORP | 322,670 | $109.2M | 0.0% | 1.2% | -7.5% |
| 19 | JANE STREET GROUP, LLC | 309,134 | $104.6M | 0.0% | 1.2% | +22.4% |
| 20 | Channing Capital Management, LLC | 302,514 | $102.4M | 2.4% | 1.1% | -0.1% |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 287,795 | $97.4M | 0.0% | 1.1% | -6.6% |
| 22 | Bank of New York Mellon Corp | 281,967 | $95.4M | 0.0% | 1.1% | -6.1% |
| 23 | Qube Research & Technologies Ltd | 268,737 | $90.9M | 0.1% | 1% | +74.2% |
| 24 | GOLDMAN SACHS GROUP INC | 258,331 | $87.4M | 0.0% | 1% | +39.4% |
| 25 | Fisher Asset Management, LLC | 246,463 | $83.4M | 0.0% | 0.9% | -2.7% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.