8 institutions reported holding $135.4M of ENERGY FUELS INC (UUUU.WS) in SEC 13F filings for 2026-03-31. Largest institutional holders: GROUP ONE TRADING LLC ($59.6M), IMC-Chicago, LLC ($37.9M), SIMPLEX TRADING, LLC ($30.6M), K2 PRINCIPAL FUND, L.P. ($3.5M), HRT FINANCIAL LP ($2.0M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $59.6M | 3.3M | Trimmed |
| 2 | IMC-Chicago, LLC | $37.9M | 2.1M | Trimmed |
| 3 | SIMPLEX TRADING, LLC | $30.6M | 1.7M | Trimmed |
| 4 | K2 PRINCIPAL FUND, L.P. | $3.5M | 3,000 | New |
| 5 | HRT FINANCIAL LP | $2.0M | 107,100 | Added |
| 6 | Police & Firemen's Retirement System of New Jersey | $1.6M | 85,281 | Hold |
| 7 | SG Americas Securities, LLC | $297,000 | 255,000 | Trimmed |
| 8 | JPMORGAN CHASE & CO | $49,380 | 3,000 | New |
Source: SEC Form 13F filings · as of 2026-03-31