3 institutions reported holding $5.3M of THEMES ETF TR (GOOL) in SEC 13F filings for 2026-06-30. Largest institutional holders: SIMPLEX TRADING, LLC ($3.0M), IMC-Chicago, LLC ($1.4M), GROUP ONE TRADING LLC ($944,170). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $3.0M | 312,900 | Added |
| 2 | IMC-Chicago, LLC | $1.4M | 129,200 | New |
| 3 | GROUP ONE TRADING LLC | $944,170 | 71,600 | Added |
Source: SEC Form 13F filings · as of 2026-06-30