5 institutions reported holding $890,290 of SGS SA UNSPONSORED ADR (SGSOY) in SEC 13F filings for 2026-03-31. Largest institutional holders: RHUMBLINE ADVISERS ($638,766), GAMMA Investing LLC ($231,929), Salomon & Ludwin, LLC ($9,875), PNC Financial Services Group, Inc. ($8,460), Ancora Advisors LLC ($1,260). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | RHUMBLINE ADVISERS | $638,766 | 61,836 | Added |
| 2 | GAMMA Investing LLC | $231,929 | 22,452 | Added |
| 3 | Salomon & Ludwin, LLC | $9,875 | 911 | Hold |
| 4 | PNC Financial Services Group, Inc. | $8,460 | 819 | Trimmed |
| 5 | Ancora Advisors LLC | $1,260 | 122 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31