4 institutions reported holding $1.1M of SUMITOMO METAL MININ UNS ADR (SMMYY) in SEC 13F filings for 2026-06-30. Largest institutional holders: RHUMBLINE ADVISERS ($684,000), GAMMA Investing LLC ($273,920), Diversified Trust Co ($131,629), Salomon & Ludwin, LLC ($19,784). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | RHUMBLINE ADVISERS | $684,000 | 59,120 | Added |
| 2 | GAMMA Investing LLC | $273,920 | 23,675 | Added |
| 3 | Diversified Trust Co | $131,629 | 11,457 | Added |
| 4 | Salomon & Ludwin, LLC | $19,784 | 1,740 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30