17 institutions reported holding $12.8M of AFFILIATED MNGRS GRP COM (AMG) in SEC 13F filings for 2026-06-30. Largest institutional holders: REINHART PARTNERS, LLC. ($6.7M), Gradient Investments LLC ($2.4M), PRIVATE CLIENT SERVICES, LLC ($1.2M), Assenagon Asset Management S.A. ($1.0M), GAMMA Investing LLC ($539,071). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | REINHART PARTNERS, LLC. | $6.7M | 19,657 | Trimmed |
| 2 | Gradient Investments LLC | $2.4M | 7,065 | Trimmed |
| 3 | PRIVATE CLIENT SERVICES, LLC | $1.2M | 3,649 | Trimmed |
| 4 | Assenagon Asset Management S.A. | $1.0M | 3,011 | New |
| 5 | GAMMA Investing LLC | $539,071 | 1,593 | Added |
| 6 | Baron Wealth Management LLC | $256,846 | 759 | Hold |
| 7 | Westmount Partners, LLC | $223,691 | 661 | New |
| 8 | Cooper Financial Group | $217,253 | 642 | Trimmed |
| 9 | Versant Capital Management, Inc | $173,261 | 512 | Added |
| 10 | CX Institutional | $22,000 | 66 | Hold |
| 11 | Grove Bank & Trust | $13,198 | 39 | Hold |
| 12 | ELEVATION WEALTH PARTNERS, LLC | $11,844 | 35 | Added |
| 13 | MassMutual Private Wealth & Trust, FSB | $11,167 | 33 | Added |
| 14 | Cedar Mountain Advisors, LLC | $8,122 | 24 | Hold |
| 15 | Dogwood Wealth Management LLC | $4,061 | 12 | Hold |
| 16 | Beaird Harris Wealth Management, LLC | $2,593 | 8 | Hold |
| 17 | CoreCap Advisors, LLC | $1,354 | 4 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30