Quantinuum
Builds trapped-ion quantum systems with cloud software, applications and cybersecurity products.
$50.25
After-hours close+0.31 (+0.62%)
At close$49.94(−7.52%)
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Breakdown13F · Form 4
Institutions 92.17%Insiders —
Shares outstanding 36.89M · Float —
Float — provider float and free-float percent disagree.
The provider's float, free-float percent and share count do not reconcile, so the float is not shown.
Institutions13F, as of Jun 30, 2026
181 holders · 34.00M shares · 175 new positions · 175 increased · 0 reduced · 0 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Capital World Investors | 4.56M | 12.36% | +4.56Mnew | Aug 12, 2026 |
| Citadel Advisors LLC | 2.30M | 6.23% | +2.30Mnew | Aug 14, 2026 |
| BlackRock, Inc. | 2.26M | 6.12% | +2.26Mnew | Aug 7, 2026 |
| Capital Research Global Investors | 1.75M | 4.76% | +1.75Mnew | Aug 12, 2026 |
| Defiance Etfs, LLC | 1.22M | 3.29% | +1.22Mnew | Aug 14, 2026 |
| Penserra Capital Management LLC | 1.20M | 3.25% | +1.20Mnew | Aug 13, 2026 |
| Wellington Management Group LLP | 1.13M | 3.06% | +1.13Mnew | Aug 14, 2026 |
| Vanguard Portfolio Management LLC | 1.03M | 2.79% | +1.03Mnew | Aug 13, 2026 |
Beneficial owners13D/G · 5% or more, as filed
No 13D/G filer at 5% or more on record.
InsidersForm 4
Latest trades
Nothing filed in the last 12 months.
CongressHouse and Senate disclosures
Not reported.