System1, Inc. SEC filings SST
System1, Inc. has 615 filings in SEC EDGAR's recent list, going back to Mar 23, 2020. Its latest annual report, Form 10-K, was filed on Mar 11, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 5, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 30, 2026 (officer or director change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| EFFECT | Filing | Aug 6, 2026 | — |
| DRS | Filing | Jul 15, 2026 | — |
| EFFECT | Filing | Jul 8, 2025 | — |
| CORRESP | Letter to the SEC | Jul 3, 2025 | — |
| UPLOAD | Letter from the SEC | Jul 3, 2025 | — |
| 25-NSE | Delisting notice | Apr 22, 2025 | — |
| UPLOAD | Letter from the SEC | Dec 3, 2024 | — |
| CORRESP | Letter to the SEC | Nov 7, 2024 | — |
| UPLOAD | Letter from the SEC | Nov 4, 2024 | — |
| CORRESP | Letter to the SEC | Sep 27, 2024 | — |
| UPLOAD | Letter from the SEC | Sep 20, 2024 | — |
| EFFECT | Filing | Jun 10, 2024 | — |
| PRER14A | Filing | May 21, 2024 | — |
| EFFECT | Filing | Apr 12, 2024 | — |
| CORRESP | Letter to the SEC | Apr 9, 2024 | — |
| UPLOAD | Letter from the SEC | Apr 5, 2024 | — |
| NT 10-Q | Filing | May 10, 2023 | Mar 31, 2023 |
| NT 10-K/A | Filing | Mar 17, 2023 | Dec 31, 2022 |
| NT 10-K | Filing | Mar 16, 2023 | Dec 31, 2022 |
| UPLOAD | Letter from the SEC | Jan 31, 2023 | — |
| CORRESP | Letter to the SEC | Dec 16, 2022 | — |
| UPLOAD | Letter from the SEC | Dec 2, 2022 | — |
| CORRESP | Letter to the SEC | Sep 23, 2022 | — |
| UPLOAD | Letter from the SEC | Sep 14, 2022 | — |
| CORRESP | Letter to the SEC | Aug 23, 2022 | — |
| UPLOAD | Letter from the SEC | Aug 11, 2022 | — |
| NT 10-Q | Filing | May 16, 2022 | Mar 31, 2022 |
| EFFECT | Filing | Apr 18, 2022 | — |
| CORRESP | Letter to the SEC | Apr 15, 2022 | — |
| CORRESP | Letter to the SEC | Apr 13, 2022 | — |
| UPLOAD | Letter from the SEC | Apr 12, 2022 | — |
| CORRESP | Letter to the SEC | Apr 8, 2022 | — |
| UPLOAD | Letter from the SEC | Apr 6, 2022 | — |
| UPLOAD | Letter from the SEC | Feb 16, 2022 | — |
| 25-NSE | Delisting notice | Jan 28, 2022 | — |
| 8-A12B | Filing | Jan 27, 2022 | — |
| 425 | Filing | Jan 10, 2022 | — |
| 425 | Filing | Jan 3, 2022 | — |
| EFFECT | Filing | Dec 20, 2021 | — |
| CORRESP | Letter to the SEC | Dec 20, 2021 | — |
| CORRESP | Letter to the SEC | Dec 16, 2021 | — |
| UPLOAD | Letter from the SEC | Dec 15, 2021 | — |
| 425 | Filing | Dec 9, 2021 | — |
| 425 | Filing | Dec 7, 2021 | — |
| CORRESP | Letter to the SEC | Dec 1, 2021 | — |
| UPLOAD | Letter from the SEC | Nov 19, 2021 | — |
| NT 10-Q | Filing | Nov 16, 2021 | Sep 30, 2021 |
| 425 | Filing | Nov 15, 2021 | — |
| 425 | Filing | Nov 9, 2021 | — |
| 425 | Filing | Nov 5, 2021 | — |
| 425 | Filing | Nov 5, 2021 | — |
| CORRESP | Letter to the SEC | Nov 3, 2021 | — |
| UPLOAD | Letter from the SEC | Oct 15, 2021 | — |
| NT 10-Q | Filing | Aug 17, 2021 | Jun 30, 2021 |
| 425 | Filing | Jun 29, 2021 | — |
| 425 | Form 8-k | Jun 29, 2021 | — |
| UPLOAD | Letter from the SEC | Jun 22, 2021 | — |
| CORRESP | Letter to the SEC | Jun 21, 2021 | — |
| UPLOAD | Letter from the SEC | Jun 7, 2021 | — |
| NT 10-Q | Filing | May 18, 2021 | Mar 31, 2021 |
| NT 10-K | Filing | Apr 1, 2021 | Dec 31, 2020 |
| EFFECT | Filing | Jun 16, 2020 | — |
| CERT | Nyse certification filing | Jun 15, 2020 | — |
| 8-A12B | Form 8-a12b | Jun 15, 2020 | — |
| CORRESP | Letter to the SEC | Jun 15, 2020 | — |
| CORRESP | Letter to the SEC | Jun 15, 2020 | — |
| DRS/A | Filing | May 15, 2020 | — |
| DRSLTR | Filing | May 14, 2020 | — |
| UPLOAD | Letter from the SEC | May 7, 2020 | — |
| DRS/A | Filing | May 6, 2020 | — |
| DRSLTR | Filing | May 5, 2020 | — |
| UPLOAD | Letter from the SEC | Apr 16, 2020 | — |
| DRS | Filing | Mar 23, 2020 | — |
Showing 73 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.
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Company profile
- Industry
- Services-Computer Programming, Data Processing, Etc. (SIC 7370)
- Listed as
- SST (NYSE), SSTPW (OTC)
- Fiscal year ends
- December 31
- Headquarters
- Marina Del Rey, CA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1805833
- Former names
- Trebia Acquisition Corp. (until Jan 26, 2022)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.