As of November 6, 2026, System1, Inc. is a publicly traded company (NYSE: SST). The largest insider holding is Stanley Blend, a 10% owner, with 2,500,000 shares (2.7% of shares outstanding) held indirectly through a trust (lone star friends trust), per Form 4 of December 27, 2024 (Schedule 13D/A, November 12, 2025).
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Is System1, Inc. a real, registered company?
- System1, Inc. files with the SEC under CIK 1805833 (its SEC filings).
- Its shares are listed under the ticker SST on NYSE (also SSTPW) (SEC company record).
- business address in Marina Del Rey, 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 System1, Inc. in our court records and SEC 8-K records (as of 2026-11-06).
- Leadership changes: the latest reported is Charles Ursini, Chief Operating Officer (Form 8-K filed 2026-10-30). Check you are dealing with the people now in charge.
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Cannae Holdings, Inc. (filed 2025-11-12).
Who are System1, Inc.'s owners and officers?
System1, Inc.: business address in Marina Del Rey, California; industry Services-Computer Programming, Data Processing, Etc. (Form D, 2026-10-30).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2025-12-02 | William P. Foley, Ii | 4.8% |
| Schedule 13D/A, 2025-12-02 | Cannae Holdings, Inc. | 4.4% |
| Schedule 13D/A, 2025-11-12 | Cannae Holdings, Inc. | 33.2% |
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What the Full Report on System1, Inc. covers
The Short Answer
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
10 cited sources found
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| Filed | Person | Role | Change | Effective |
|---|---|---|---|---|
| Form 8-K, 2026-10-30 | Charles Ursini | Chief Operating Officer | departed | 2026-10-30 |
| Form 8-K, 2026-07-24 | Robert Sharp | Director | appointed |
Which insiders own System1, 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.
- , a 10% owner: 2,500,000 shares (2.7% of shares outstanding), held indirectly through a trust (lone star friends trust), on a joint filing (Form 4, 2024-12-27).
- Lone Star Friends Trust, a 10% owner: 2,500,000 shares (2.7% of shares outstanding), held indirectly through a trust (lone star friends trust), on a joint filing (Form 4, 2024-12-27).
- CEE Holdings Trust, a 10% owner: 919,555 shares (1.0% of shares outstanding) (Form 4, 2025-08-26).
- , the president and chief operating officer: 367,500 shares (0.40% of shares outstanding) (Form 4, 2025-07-31).
- , the chief financial officer: 175,793 shares (0.19% of shares outstanding) (Form 4, 2026-07-17).
Shares outstanding: 91,455,846 as of 2022-11-04, from the company's latest SEC cover page.
How much has System1, Inc. raised?
No fundraising or offering filing from System1, Inc. is on file with us.
Keep reading
More on System1, Inc. and the records around it.
Companies that share a holder
- Cannae Holdings, Inc. also filed stake reports on 2 other companies: Paysafe Ltd. (Nov 2025)
- William P. Foley, II also filed stake reports on 2 other companies: Cannae Holdings, Inc. (May 2026), Paysafe Ltd. (Nov 2025)
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