11 institutions reported holding $842,041 of THEMES ETF TR (FUTG) in SEC 13F filings for 2026-06-30. Largest institutional holders: CITADEL ADVISORS LLC ($213,301), Optiver Holding B.V. ($205,307), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($192,578), Virtu Financial LLC ($66,000), FLOW TRADERS U.S. LLC ($58,000). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | $213,301 | 66,005 | New |
| 2 | Optiver Holding B.V. | $205,307 | 63,531 | Added |
| 3 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $192,578 | 59,592 | New |
| 4 | Virtu Financial LLC | $66,000 | 20,472 | Trimmed |
| 5 | FLOW TRADERS U.S. LLC | $58,000 | 17,931 | New |
| 6 | SIMPLEX TRADING, LLC | $50,396 | 15,595 | New |
| 7 | TWO SIGMA SECURITIES, LLC | $44,657 | 13,819 | New |
| 8 | GROUP ONE TRADING LLC | $11,802 | 3,652 | New |
| 9 | HRT FINANCIAL LP | $0 | 0 | Exited |
| 10 | JANE STREET GROUP, LLC | $0 | 0 | Exited |
| 11 | UBS Group AG | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30