3 institutions reported holding $8.9M of NABORS INDUSTRIES LTD (NBR-PA) in SEC 13F filings for 2026-03-31. Largest institutional holders: IMC-Chicago, LLC ($4.5M), GROUP ONE TRADING LLC ($2.6M), SIMPLEX TRADING, LLC ($1.8M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $4.5M | 52,400 | Trimmed |
| 2 | GROUP ONE TRADING LLC | $2.6M | 30,100 | Trimmed |
| 3 | SIMPLEX TRADING, LLC | $1.8M | 20,900 | Added |
Source: SEC Form 13F filings · as of 2026-03-31