2 institutions reported holding $131,389 of THEMES ETF TR (BLSG) in SEC 13F filings for 2026-06-30. Largest institutional holders: Optiver Holding B.V. ($131,389), CITADEL ADVISORS LLC ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Optiver Holding B.V. | $131,389 | 76,719 | Added |
| 2 | CITADEL ADVISORS LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30