2 institutions reported holding $460,922 of NATIONAL ENERGY SERVICES REU (NESRW) in SEC 13F filings for 2026-06-30. Largest institutional holders: SIMPLEX TRADING, LLC ($451,943), GROUP ONE TRADING LLC ($8,979). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $451,943 | 15,100 | Added |
| 2 | GROUP ONE TRADING LLC | $8,979 | 300 | Added |
Source: SEC Form 13F filings · as of 2026-06-30