3 institutions reported holding $60,750 of DIANA SHIPPING INC (DSX-PB) in SEC 13F filings for 2026-03-31. Largest institutional holders: IMC-Chicago, LLC ($37,250), GROUP ONE TRADING LLC ($15,500), SIMPLEX TRADING, LLC ($8,000). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $37,250 | 14,900 | New |
| 2 | GROUP ONE TRADING LLC | $15,500 | 6,200 | New |
| 3 | SIMPLEX TRADING, LLC | $8,000 | 3,200 | Added |
Source: SEC Form 13F filings · as of 2026-03-31