As of November 6, 2026, C3.ai, Inc. is a publicly traded company (NYSE: AI); its largest reported holder is BlackRock, with 6.8% on Schedule 13G/A of April 24, 2026, then Vanguard (6.1%). The largest insider holding is Thomas M. Siebel, the chairman and chief executive, with 1,959,477 shares, per Form 4 of October 14, 2026 (Schedule 13G/A, April 24, 2026).
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Is C3.ai, Inc. a real, registered company?
- C3.ai, Inc. files with the SEC under CIK 1577526 (its SEC filings).
- Its shares are listed under the ticker AI on NYSE (SEC company record).
- Incorporated in Delaware; business address in Redwood City, California, 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 C3.ai, Inc. in our court records and SEC 8-K records (as of 2026-11-06).
- Layoffs: 1 exit or restructuring plan reported on Form 8-K, Item 2.05 (latest filed 2026-02-25).
- Leadership changes: the latest reported is John C. Dwyer, Director (Form 8-K filed 2026-08-27). Check you are dealing with the people now in charge.
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Thomas M Siebel (filed 2026-05-15).
Who are C3.ai, Inc.'s owners and officers?
C3.ai, Inc.: incorporated in Delaware; business address in Redwood City, California; industry Services-Prepackaged Software (Form D, 2026-08-27).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-05-15 | Thomas M Siebel | 15.3% |
| Schedule 13G, 2026-04-29 | Vanguard Portfolio Management | 6.1% |
| Schedule 13G/A, 2026-04-24 | Blackrock, Inc. | 6.8% |
| Schedule 13G/A, 2026-03-26 | The Vanguard Group | 0% |
| Schedule 13G/A, 2026-02-13 | G1 Execution Services, LLC | 2.9% |
| Schedule 13G/A, 2025-11-14 | Thomas M Siebel | 17.2% |
| Schedule 13G, 2025-11-13 | G1 Execution Services, LLC | 5.3% |
| Schedule 13G/A, 2025-08-14 | G1 Execution Services, LLC | 4.3% |
| Schedule 13G/A, 2025-08-14 | Thomas M Siebel | 18.6% |
Questions about who owns C3.ai, Inc.
Who owns C3.ai, Inc.?
On this page, 3 holders' latest ownership filings report 5% or more of C3.ai, Inc.: Thomas M Siebel (15.3%, Schedule 13G/A, filed 2026-05-15), Blackrock, Inc. (6.8%, Schedule 13G/A, filed 2026-04-24) and Vanguard Portfolio Management (6.1%, Schedule 13G, filed 2026-04-29).
Who are the largest shareholders of C3.ai, Inc.?
By the share each holder's latest filing reports, the largest holders of C3.ai, Inc. on this page are Thomas M Siebel (15.3%), Blackrock, Inc. (6.8%) and Vanguard Portfolio Management (6.1%).
When did Thomas M Siebel buy into C3.ai, Inc.?
The filings give report dates, not purchase dates. The earliest filing from Thomas M Siebel on this page is the Schedule 13G/A, filed 2025-08-14, reporting 18.6%; its latest, Schedule 13G/A filed 2026-05-15, reports 15.3%. 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%); 9 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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What the Full Report on C3.ai, Inc. covers
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Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
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| Filed | Person | Role | Change | Effective |
|---|---|---|---|---|
| Form 8-K, 2026-08-27 | John C. Dwyer | Director | appointed | 2026-08-25 |
| Form 8-K, 2026-06-16 | Jim H. Snabe | Chief Executive Officer | departed | |
| Form 8-K, 2026-05-12 | Thomas M. Siebel | Chief Executive Officer | appointed | 2026-05-08 |
| Form 8-K, 2026-05-12 | Stephen Ehikian | Chief Executive Officer | appointed | 2026-05-08 |
| Form 8-K, 2026-05-12 | Thomas M. Siebel | appointed |
Which insiders own C3.ai, 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 chairman and chief executive: 1,959,477 shares, 722,362 held directly and 1,237,115 indirectly (Form 4, 2026-10-14).
- , the chief executive: 1,582,606 shares, 1,308,424 held directly and 274,182 indirectly (Form 4, 2026-07-02).
- , a director: 1,018,511 shares, 352,582 held directly and 665,929 indirectly (Form 4, 2026-10-28).
- , the executive vice president and chief commercial officer: 1,011,327 shares (Form 4, 2025-10-02).
- , a director: 575,423 shares (Form 4, 2026-10-28).
Shares only: the company's cover page does not give one share count for a single class, so no percentage is worked out.
How much has C3.ai, Inc. raised?
No fundraising or offering filing from C3.ai, Inc. is on file with us.
Red flags found
1 exit or restructuring plan on Form 8-K (latest Form 8-K, 2026-02-25).
Keep reading
More on C3.ai, Inc. and the records around it.
C3.ai, Inc. elsewhere on the record
- Leadership changes Aug 2026
- 5%+ stake filings May 2026
- Layoff notices Feb 2026
Companies that share a holder
- G1 Execution Services, LLC also filed stake reports on 45 other companies: AmpliTech Group, Inc. (Aug 2026), Bitdeer Technologies Group (Aug 2026), Compass Diversified Holdings (Aug 2026)
- Vanguard Portfolio Management also filed stake reports on 941 other companies: Newmark Group Inc (Nov 2026), A10 Networks Inc (Oct 2026), ADT 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)
Related pages
LayoffsLeadership changes5%+ holders
Filings, cases and notices link to their records. A not-found line names the records searched; it is not proof of absence.
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https://mentionfox.com/who-owns/c3ai