2 institutions reported holding $399,546 of NIAGEN BIOSCIENCE INC (CDXC) in SEC 13F filings for 2026-03-31. Largest institutional holders: SIMPLEX TRADING, LLC ($312,228), GROUP ONE TRADING LLC ($87,318). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $312,228 | 70,800 | Trimmed |
| 2 | GROUP ONE TRADING LLC | $87,318 | 19,800 | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31