2 institutions reported holding $93,215 of JANUS INTERNATIONAL GROUP IN (JBI.WS) in SEC 13F filings for 2026-03-31. Largest institutional holders: GROUP ONE TRADING LLC ($83,430), SIMPLEX TRADING, LLC ($9,785). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $83,430 | 16,200 | Trimmed |
| 2 | SIMPLEX TRADING, LLC | $9,785 | 1,900 | New |
Source: SEC Form 13F filings · as of 2026-03-31