4 institutions reported holding $1.7M of NRX PHARMACEUTICALS INC (NRXPW) in SEC 13F filings for 2026-06-30. Largest institutional holders: SIMPLEX TRADING, LLC ($1.4M), GROUP ONE TRADING LLC ($356,648), WOLVERINE ASSET MANAGEMENT LLC ($0), UBS Group AG ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $1.4M | 333,400 | Added |
| 2 | GROUP ONE TRADING LLC | $356,648 | 87,200 | Added |
| 3 | WOLVERINE ASSET MANAGEMENT LLC | $0 | 0 | Exited |
| 4 | UBS Group AG | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30