As of November 10, 2026, Quantum Computing Inc. is a publicly traded company (Nasdaq: QUBT). The largest holder reporting an active stake on Schedule 13D is Yuping Huang, the chief executive and president, at 10.33%. No bankruptcy or receivership appears in its SEC Form 8-K filings. Passive holders reporting on Schedule 13G include BlackRock (6.7%) (Schedule 13D/A, May 28, 2026).
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Is Quantum Computing Inc. a real, registered company?
- Quantum Computing Inc. files with the SEC under CIK 1758009 (its SEC filings).
- Its shares are listed under the ticker QUBT on Nasdaq (SEC company record).
- Incorporated in Delaware; business address in Hoboken, New Jersey, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under Quantum Computing Inc. in our court records and SEC 8-K records (as of 2026-11-10).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Yuping Huang (filed 2026-05-28).
Who are Quantum Computing Inc.'s owners and officers?
Quantum Computing Inc.: incorporated in Delaware; business address in Hoboken, New Jersey; industry Services-Prepackaged Software (Form 8-K, 2026-06-23).
| Report | Holder | Share |
|---|---|---|
| Schedule 13D/A, 2026-05-28 | Yuping Huang | 10.33% |
| Schedule 13G/A, 2026-03-27 | The Vanguard Group | 0% |
| Schedule 13G/A, 2026-01-30 | The Vanguard Group | 7.51% |
| Schedule 13G/A, 2026-01-21 | Blackrock, Inc. | 6.7% |
| Schedule 13G, 2025-10-17 | Blackrock, Inc. | 5.4% |
| Schedule 13G, 2025-10-02 | Kenneth Griffin | 4.9% |
| Schedule 13G, 2025-07-29 | The Vanguard Group | 6.39% |
Questions about who owns Quantum Computing Inc.
Who owns Quantum Computing Inc.?
On this page, 2 holders' latest ownership filings report 5% or more of Quantum Computing Inc.: Yuping Huang (10.33%, Schedule 13D/A, filed 2026-05-28) and Blackrock, Inc. (6.7%, Schedule 13G/A, filed 2026-01-21).
Who are the largest shareholders of Quantum Computing Inc.?
By the share each holder's latest filing reports, the largest holders of Quantum Computing Inc. on this page are Yuping Huang (10.33%) and Blackrock, Inc. (6.7%).
When did Yuping Huang buy into Quantum Computing Inc.?
The filings give report dates, not purchase dates. The earliest filing from Yuping Huang on this page is the Schedule 13D/A, filed 2026-05-28, reporting 10.33%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 7 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Which insiders own Quantum Computing Inc. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , the chief executive and president: 21,531,173 shares (9.5% of shares outstanding) (Form 4/A, 2026-08-24).
- , the chief executive: 1,249,169 shares (0.55% of shares outstanding) (Form 4, 2025-04-04).
- , the chief financial officer and general counsel: 1,123,038 shares (0.49% of shares outstanding) (Form 4, 2026-03-11).
- , the chief financial officer: 351,152 shares (0.15% of shares outstanding) (Form 4, 2025-06-16).
- , the chief operating officer: 50,314 shares (0.02% of shares outstanding) (Form 4, 2026-06-01).
Shares outstanding: 226,931,758 as of 2026-11-06, from the company's latest SEC cover page.
How much has Quantum Computing Inc. raised?
Latest IPO step: Quantum Computing Inc. filed to go public (S-1, 2025-07-29).
IPO filings: S-1, 2025-07-29, S-1, 2025-07-03, S-1, 2025-01-22, S-1, 2024-12-20.
Acquisitions reported on Form 8-K, Item 2.01: completed an acquisition (2026-06-23); completed an acquisition (2026-04-17); completed an acquisition (2026-02-03).
Keep reading
More on Quantum Computing Inc. and the records around it.
Quantum Computing Inc. elsewhere on the record
- 5%+ stake filings May 2026
Companies that share a holder
- Citadel Advisors LLC also filed stake reports on 58 other companies: Quantinuum Inc. (Oct 2026), REALLOYS INC. (Oct 2026), STARFIGHTERS SPACE, INC. (Oct 2026)
- BlackRock, Inc. also filed stake reports on 1596 other companies: AvePoint, Inc. (Nov 2026), BIOMARIN PHARMACEUTICAL INC (Nov 2026), MSG RANGERS CORP (Nov 2026)
- The Vanguard Group also filed stake reports on 2384 other companies: BellRing Brands, Inc. (Sep 2026), CAL-MAINE FOODS INC (Sep 2026), FTAI Aviation Ltd. (Sep 2026)
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