9 institutions reported holding $2.6M of THEMES ETF TR (PYPG) in SEC 13F filings for 2026-03-31. Largest institutional holders: SUSQUEHANNA INTERNATIONAL GROUP, LLP ($1.9M), IMC-Chicago, LLC ($350,126), JANE STREET GROUP, LLC ($260,828), CITADEL ADVISORS LLC ($75,220), GROUP ONE TRADING LLC ($30,668). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.9M | 322,592 | Added |
| 2 | IMC-Chicago, LLC | $350,126 | 59,115 | New |
| 3 | JANE STREET GROUP, LLC | $260,828 | 44,038 | Added |
| 4 | CITADEL ADVISORS LLC | $75,220 | 12,700 | New |
| 5 | GROUP ONE TRADING LLC | $30,668 | 5,178 | New |
| 6 | Optiver Holding B.V. | $4,768 | 805 | New |
| 7 | CITIGROUP INC | $6 | 1 | Hold |
| 8 | SIMPLEX TRADING, LLC | $0 | 0 | Exited |
| 9 | TOTH FINANCIAL ADVISORY CORP | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31