6 institutions reported holding $30.4M of AMG RIVER ROAD SMALL-MID CAP V (ARIMX) in SEC 13F filings for 2026-03-31. Largest institutional holders: Hemenway Trust Co LLC ($17.9M), Broderick Brian C ($6.6M), SOMERVILLE KURT F ($2.5M), Dempze Nancy E ($2.5M), Elefante Mark B ($667,912). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Hemenway Trust Co LLC | $17.9M | 1.8M | Added |
| 2 | Broderick Brian C | $6.6M | 673,406 | Hold |
| 3 | SOMERVILLE KURT F | $2.5M | 260,567 | Trimmed |
| 4 | Dempze Nancy E | $2.5M | 252,648 | Added |
| 5 | Elefante Mark B | $667,912 | 68,293 | Added |
| 6 | Delaney Dennis R | $197,994 | 20,245 | New |
Source: SEC Form 13F filings · as of 2026-03-31