2 institutions reported holding $48,616 of H2O AMERICA (SJW) in SEC 13F filings for 2026-06-30. Largest institutional holders: SIMPLEX TRADING, LLC ($36,462), GROUP ONE TRADING LLC ($12,154). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $36,462 | 600 | Trimmed |
| 2 | GROUP ONE TRADING LLC | $12,154 | 200 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30