3 institutions reported holding $952,028 of MIDCAP FINANCIAL INVSTMNT CO (MFICL) in SEC 13F filings for 2026-03-31. Largest institutional holders: GROUP ONE TRADING LLC ($887,960), SIMPLEX TRADING, LLC ($64,068), IMC-Chicago, LLC ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $887,960 | 79,000 | Added |
| 2 | SIMPLEX TRADING, LLC | $64,068 | 5,700 | New |
| 3 | IMC-Chicago, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31