Quantinuum Inc.
QNT- Exchange
- Nasdaq
- Industry
- Services-Computer Integrated Systems Design
- SEC CIK
- 0002110105
No open-market purchases or sales by Quantinuum Inc. insiders were filed in the last 90 days; 175 institutions reported holding it in 13F filings for Q2 2026, worth $2.77B in total; 4 superinvestors hold it, including Viking Global Investors and D1 Capital Partners.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +175 vs. previous quarter
- 175
- 13F valueReported value at the end of Q2 2026
- $2.77B
- Superinvestors holdingAt the end of Q2 2026
- 4
Price chart
Superinvestors holding QNT, Q2 2026
4 superinvestors report holding Quantinuum Inc. on Form 13F. Percentages are the stock's share of each portfolio.
Viking Global Investors
Andreas Halvorsen
0.1%
Quantinuum Inc.'s share of the portfolio
- Shares
- 306,123
- Value
- $25.0M
| Superinvestor | Weight | Value |
|---|---|---|
| Soros Fund Management | 0.3% | $21.7M |
| Elliott Investment Management | 0.1% | $12.3M |
Latest insider trades
Open-market purchases and sales by Quantinuum Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | Narang PrinehaDirector | PPurchaseClass A Common Stock | +200 | $60.00 | +$12.0K | +3.4%6.03K after | |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | Jimenez JosephDirector | PPurchaseClass A Common Stock | +66.7K | $60.00 | +$4.00M | +1,142.9%72.5K after | |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | Sharan NiteshChief Financial Officer | PPurchaseClass A Common Stock | +6.50K | $60.00 | +$390.0K | +1.9%340.8K after | |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | Barron HalDirector | PPurchaseClass A Common Stock | +250.0K | $60.00 | +$15.0M | +4,286.0%255.8K after | |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | Branderiz EricDirector | PPurchaseClass A Common Stock | +8.33K | $60.00 | +$500.0K | +142.9%14.2K after | |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | Kapur VimalDirector | PPurchaseClass A Common Stock | +13.0K | $60.00 | +$780.0K | New position13.0K after | |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | Stepniak MichalDirector | PPurchaseClass A Common Stock | +13.3K | $60.00 | +$800.0K | New position13.3K after | |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | Dehoff Kevin ScottChief Strategy Officer | PPurchaseClass A Common Stock | +15.0K | $60.00 | +$900.0K | +13.5%126.5K after | |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | Daugherty Paul R.Director | PPurchaseClass A Common Stock | +4.00K | $60.00 | +$240.0K | +68.6%9.83K after | |
| Jun 8, 2026 (view filing) | Jun 5 | 3 days | Denman Kenneth DDirector | PPurchaseClass A Common Stock | +14.0K | $60.00 | +$840.0K | +240.0%19.8K after |
Top 10 13F holders, Q2 2026
The largest institutional positions in Quantinuum Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Capital World Investors | 4,558,976 | $372.7M | 0.04% | +4,558,976 | New |
| Citadel Advisors LLC | 2,299,997 | $188.0M | 0.11% | +2,299,997 | New |
| BlackRock, Inc. | 2,259,347 | $184.7M | 0.00% | +2,259,347 | New |
| Capital Research Global Investors | 1,754,325 | $143.4M | 0.02% | +1,754,325 | New |
| Penserra Capital Management LLC | 1,200,176 | $98.1M | 0.75% | +1,200,176 | New |
| Defiance ETFs, LLC | 1,215,283 | $95.3M | 1.33% | +1,215,283 | New |
| Wellington Management Group LLP | 1,130,639 | $92.4M | 0.02% | +1,130,639 | New |
| Vanguard Portfolio Management LLC | 1,028,382 | $84.1M | 0.00% | +1,028,382 | New |
| Capital International Investors | 961,428 | $78.6M | 0.02% | +961,428 | New |
| Vanguard Capital Management LLC | 949,283 | $77.6M | 0.00% | +949,283 | New |