2 institutions reported holding $198,856 of CHIRON REAL ESTATE INC (XRNPRB) in SEC 13F filings for 2026-06-30. Largest institutional holders: SIMPLEX TRADING, LLC ($138,824), GROUP ONE TRADING LLC ($60,032). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $138,824 | 3,700 | Hold |
| 2 | GROUP ONE TRADING LLC | $60,032 | 1,600 | Added |
Source: SEC Form 13F filings · as of 2026-06-30