Q3 2025 13F Holders as of 9/30/2025
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Type / Class
-
Equity / Common Stock
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Shares outstanding
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28.3M
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Number of holders
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437
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Total 13F shares, excl. options
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26.5M
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Shares change
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-357K
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Total reported value, excl. options
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$6.31B
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Value change
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-$61M
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Put/Call ratio
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0.76
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Number of buys
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194
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Number of sells
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-198
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Price
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$238.43
Significant Holders of AFFILIATED MANAGERS GROUP, INC. - Common Stock (AMG) as of Q3 2025
483 filings reported holding AMG - AFFILIATED MANAGERS GROUP, INC. - Common Stock as of Q3 2025.
AFFILIATED MANAGERS GROUP, INC. - Common Stock (AMG) has 437 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC).
These institutions hold a total of 26.5M shares
of 28.3M outstanding shares and own 93.36% of the company stock.
Largest 10 shareholders include BlackRock, Inc. (2.82M shares), VANGUARD GROUP INC (2.77M shares), MORGAN STANLEY (1.94M shares), ARIEL INVESTMENTS, LLC (1.26M shares), Clarkston Capital Partners, LLC (1.23M shares), Boston Partners (1.16M shares), MILLENNIUM MANAGEMENT LLC (1.02M shares), STATE STREET CORP (964K shares), DIMENSIONAL FUND ADVISORS LP (684K shares), and CITADEL ADVISORS LLC (645K shares).
This table shows the top 437 institutional shareholders of the company equity. This data is sourced directly from the SEC via 13F filings.
| Investor |
Option |
Weight % |
Change % |
Value $ |
* Price $ |
Shares |
Share Change |
Activity |
Report Period |
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.