MSTW ROUNDHILL ETF TRUST: institutional ownership and insider trading

7 funds reported holding $833K of ROUNDHILL ETF TRUST in their latest 13F filings; in Q2 2026 funds net bought $667K, with 4 new positions and 2 funds selling out.

Famous investors holding MSTW

• Ken Griffin (Citadel Advisors): $145K, 0.0% of the portfolio

Largest institutional holders of MSTW

1. JANE STREET GROUP, LLC — $584K
2. CITADEL ADVISORS LLC — $145K
3. OLD MISSION CAPITAL LLC — $45.4K
4. HRT FINANCIAL LP — $36.0K
5. GROUP ONE TRADING LLC — $16.9K
6. SIMPLEX TRADING, LLC — $4.17K
7. UBS Group AG (UBS) — $989

All MSTW 13F holders