1 institutions reported holding $5,382 of ORION GROUP HLDGS INC COM (ORN) in SEC 13F filings for 2026-06-30. Largest institutional holders: GAMMA Investing LLC ($5,382). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GAMMA Investing LLC | $5,382 | 320 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30