3 institutions reported holding $1.6M of PHUNWARE INC (PHUNW) in SEC 13F filings for 2026-03-31. Largest institutional holders: SIMPLEX TRADING, LLC ($1.2M), GROUP ONE TRADING LLC ($295,236), IMC-Chicago, LLC ($95,403). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $1.2M | 670,800 | Added |
| 2 | GROUP ONE TRADING LLC | $295,236 | 166,800 | Added |
| 3 | IMC-Chicago, LLC | $95,403 | 53,900 | New |
Source: SEC Form 13F filings · as of 2026-03-31