Canonical: https://ownershiptrace.com/13f/companies/842

# Who owns AFFILIATED MANAGERS GROUP, INC. (AMG)? Elite investor 13F holders

7 tracked elite investors reported holding AFFILIATED MANAGERS GROUP, INC as of 2026-06-30, including Ariel Investments, Renaissance Technologies LLC, D.E. Shaw, Tudor Investment, Southeastern Asset Management. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.

7 tracked investors currently reported holding · Latest report period: 2026-06-30 · Financials · Financial Services

Affiliated Managers Group, Inc., through its affiliates, operates as an investment management company providing investment management services to mutual funds, institutional clients,retails and high net worth individuals in the United States. It provides advisory or sub-advisory services to mutual funds. These funds are distributed to retail, high net worth and institutional clients directly and…

## Reported holders and securities, including exits (up to 20)

| Investor | Security | Instrument | Report period | Filed | Value | Quantity | Units | Change | Source |
|  --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [Ariel Investments](https://ownershiptrace.com/13f/investors/47) | AFFILIATED MANAGERS GROUP | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 338290358.00 USD | 999676.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/936753/0000936753-26-000050-index.html) |
| [Renaissance Technologies LLC](https://ownershiptrace.com/13f/investors/63) | AFFILIATED MANAGERS GROUP | SHARE | 2026-06-30 | 2026-08-13 00:00:00 | 39741696.00 USD | 117440.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1037389/0001037389-26-000059-index.html) |
| [D.E. Shaw](https://ownershiptrace.com/13f/investors/98) | AFFILIATED MANAGERS GROUP | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 14496718.00 USD | 42839.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1009207/0001104659-26-097217-index.html) |
| [Tudor Investment](https://ownershiptrace.com/13f/investors/94675) | AFFILIATED MANAGERS GROUP | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 3954881.00 USD | 11687.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/923093/0000902664-26-003485-index.html) |
| [Southeastern Asset Management](https://ownershiptrace.com/13f/investors/55) | AFFILIATED MANAGERS GROUP | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 1882181.00 USD | 5562.000000 | Shares | hold | [Original filing](https://www.sec.gov/Archives/edgar/data/807985/0001398344-26-014641-index.html) |
| [Bridgewater Associates](https://ownershiptrace.com/13f/investors/8) | AFFILIATED MANAGERS GROUP | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 0.00 USD | 0.000000 | Shares | exited | [Original filing](https://www.sec.gov/Archives/edgar/data/1350694/0001350694-26-000003-index.html) |
| [GAMCO](https://ownershiptrace.com/13f/investors/137) | AFFILIATED MANAGERS GROUP | SHARE | 2026-06-30 | 2026-08-12 00:00:00 | 795240.00 USD | 2350.000000 | Shares | hold | [Original filing](https://www.sec.gov/Archives/edgar/data/807249/0001140361-26-032508-index.html) |
| [Dodge & Cox Funds](https://ownershiptrace.com/13f/investors/29) | AFFILIATED MANAGERS GROUP | SHARE | 2026-06-30 | 2026-08-13 00:00:00 | 203040.00 USD | 600.000000 | Shares | buy | [Original filing](https://www.sec.gov/Archives/edgar/data/200217/0001193125-26-349535-index.html) |
| [Ancora Advisors / Ancora Holdings](https://ownershiptrace.com/13f/investors/101) | AFFILIATED MANAGERS GROUP | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 0.00 USD | 0.000000 | Shares | exited | [Original filing](https://www.sec.gov/Archives/edgar/data/1446114/0001446114-26-000012-index.html) |

Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.

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