Quantinuum Inc. SEC filings QNT
Quantinuum Inc. has 53 filings in SEC EDGAR's recent list, going back to Feb 17, 2026. The latest quarterly report (Form 10-Q) was filed on Aug 13, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 8, 2026 (material agreement, unregistered share sale, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 27, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 6, 2026 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Sep 8, 2026 | Sep 8, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 13, 2026 | — |
| 10-Q | Quarterly report | Aug 13, 2026 | Jun 30, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 12, 2026 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 11, 2026 | Aug 11, 2026 |
| 3 | Initial insider ownership | Jul 27, 2026 | Jul 17, 2026 |
| 4/A | Filing | Jul 22, 2026 | Jul 17, 2026 |
| 4 | Insider transaction | Jul 21, 2026 | Jul 17, 2026 |
| 3 | Initial insider ownership | Jul 21, 2026 | Jul 17, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 17, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 6, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 22, 2026 | — |
| 4 | Insider transaction | Jun 8, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 8, 2026 | Jun 3, 2026 |
| 424B4 | Prospectus | Jun 5, 2026 | — |
| 3 | Initial insider ownership | Jun 4, 2026 | Jun 4, 2026 |
| 3 | Initial insider ownership | Jun 4, 2026 | Jun 4, 2026 |
| 3 | Initial insider ownership | Jun 4, 2026 | Jun 4, 2026 |
| 3 | Initial insider ownership | Jun 4, 2026 | Jun 4, 2026 |
| 3 | Initial insider ownership | Jun 4, 2026 | Jun 4, 2026 |
| 3 | Initial insider ownership | Jun 4, 2026 | Jun 4, 2026 |
| 3 | Initial insider ownership | Jun 4, 2026 | Jun 4, 2026 |
| 3 | Initial insider ownership | Jun 4, 2026 | Jun 4, 2026 |
| 3 | Initial insider ownership | Jun 4, 2026 | Jun 4, 2026 |
| 3 | Initial insider ownership | Jun 4, 2026 | Jun 4, 2026 |
| 3 | Initial insider ownership | Jun 4, 2026 | Jun 4, 2026 |
| 3 | Initial insider ownership | Jun 4, 2026 | Jun 4, 2026 |
| 3 | Initial insider ownership | Jun 4, 2026 | Jun 4, 2026 |
| 3 | Initial insider ownership | Jun 4, 2026 | Jun 4, 2026 |
| 3 | Initial insider ownership | Jun 4, 2026 | Jun 4, 2026 |
| S-8 | Employee stock plan registration | Jun 4, 2026 | — |
| CERT | Filing | Jun 4, 2026 | — |
| 8-A12B | Filing | Jun 4, 2026 | — |
| EFFECT | Filing | Jun 3, 2026 | — |
| S-1MEF | Filing | Jun 3, 2026 | — |
| S-1/A | Amended registration statement | Jun 1, 2026 | — |
| S-1/A | Amended registration statement | May 26, 2026 | — |
| S-1 | Registration statement | May 8, 2026 | — |
| DRS/A | Filing | Apr 23, 2026 | — |
| DRS/A | Filing | Mar 31, 2026 | — |
| DRS | Filing | Feb 17, 2026 | — |
Showing 53 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Services-Computer Integrated Systems Design (SIC 7373)
- Listed as
- QNT (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Broomfield, CO
- SEC filer status
- , Emerging growth company
- SEC CIK
- 2110105
Other Services-Computer Integrated Systems Design companies
- Samsara Inc. IOT
- Leidos Holdings, Inc. LDOS
- Caci International Inc /DE/ CACI
- GoDaddy Inc. GDDY
- IonQ, Inc. IONQ
- Jack Henry & Associates Inc JKHY
- Aurora Innovation, Inc. AUR
- Science Applications International Corp SAIC
All 56 Services-Computer Integrated Systems Design companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.