3 institutions reported holding $1.3M of GENCO SHIPPING & TRADING LTD (GNKOQ) in SEC 13F filings for 2026-06-30. Largest institutional holders: GROUP ONE TRADING LLC ($1.2M), SIMPLEX TRADING, LLC ($61,950), IMC-Chicago, LLC ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $1.2M | 50,100 | Added |
| 2 | SIMPLEX TRADING, LLC | $61,950 | 2,500 | Added |
| 3 | IMC-Chicago, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30