QNT Quantinuum Inc.: institutional ownership and insider trading
189 funds reported holding $2.84B of Quantinuum Inc. in their latest 13F filings; in Q2 2026 funds net bought $2.80B, with 174 new positions and 0 funds selling out; over the last 12 months insiders bought $24.7M and sold $0 on the open market.
Famous investors holding QNT
- George Soros (Soros Fund Management): $21.7M, 0.3% of the portfolio
- Andreas Halvorsen (Viking Global Investors): $25.0M, 0.1% of the portfolio
- Dan Sundheim (D1 Capital Partners): $24.5M, 0.1% of the portfolio
- Paul Singer (Elliott Investment Management): $12.3M, 0.1% of the portfolio
- Ken Griffin (Citadel Advisors): $199M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $12.7M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $8.80M, 0.0% of the portfolio
Largest institutional holders of QNT
- Capital World Investors — $373M
- CITADEL ADVISORS LLC — $199M
- BlackRock, Inc. (BLK) — $185M
- Capital Research Global Investors — $143M
- Penserra Capital Management LLC — $98.1M
- Defiance ETFs, LLC — $95.3M
- WELLINGTON MANAGEMENT GROUP LLP — $92.4M
- VANGUARD PORTFOLIO MANAGEMENT LLC — $84.1M
- Capital International Investors — $78.6M
- VANGUARD CAPITAL MANAGEMENT LLC — $77.6M
Recent QNT insider trades
- Jun 5, 2026: Stepniak Michal bought 13,333 shares ($800K)
- Jun 5, 2026: Dehoff Kevin Scott bought 15,000 shares ($900K)
- Jun 5, 2026: Daugherty Paul R. bought 4,000 shares ($240K)
- Jun 5, 2026: Denman Kenneth D bought 14,000 shares ($840K)
Members of Congress trading QNT
- Jun 4, 2026: Cleo Fields bought $1.00K–$15.0K
5%+ owners
- Honeywell International Inc.: 79.1% (Schedule 13G, filed Aug 13, 2026)
- Ilyas Khan: 72.0% (Schedule 13G, filed Jun 22, 2026)
- Capital World Investors: 13.9% (Schedule 13G, filed Jul 6, 2026)
- Kenneth Griffin: 7.3% (Schedule 13G, filed Oct 6, 2026)
- BlackRock Portfolio Management LLC: 6.9% (Schedule 13G, filed Jul 17, 2026)
- Capital Research Global Investors: 5.3% (Schedule 13G, filed Aug 12, 2026)