Quantum-Si Inc SEC filings QSI
Quantum-Si Inc has 473 filings in SEC EDGAR's recent list, going back to Jul 2, 2020. Its latest annual report, Form ARS, was filed on Apr 1, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 5, 2026 | Sep 30, 2026 |
| 10-Q | Quarterly report | Aug 13, 2026 | Jun 30, 2026 |
| 10-Q | Quarterly report | May 7, 2026 | Mar 31, 2026 |
| 10-Q | Quarterly report | Nov 5, 2025 | Sep 30, 2025 |
| 10-Q | Quarterly report | Aug 5, 2025 | Jun 30, 2025 |
| 10-Q | Quarterly report | May 15, 2025 | Mar 31, 2025 |
| 10-Q | Quarterly report | Nov 12, 2024 | Sep 30, 2024 |
| 10-Q | Quarterly report | Aug 7, 2024 | Jun 30, 2024 |
| 10-Q | Quarterly report | May 9, 2024 | Mar 31, 2024 |
| 10-Q | Quarterly report | Nov 9, 2023 | Sep 30, 2023 |
| 10-Q | Quarterly report | Aug 7, 2023 | Jun 30, 2023 |
| 10-Q | Quarterly report | May 11, 2023 | Mar 31, 2023 |
| 10-Q | Quarterly report | Nov 8, 2022 | Sep 30, 2022 |
| 10-Q | Quarterly report | Aug 8, 2022 | Jun 30, 2022 |
| 10-Q | Quarterly report | May 10, 2022 | Mar 31, 2022 |
| 10-Q | Quarterly report | Nov 15, 2021 | Sep 30, 2021 |
| 10-Q | Quarterly report | Aug 16, 2021 | Jun 30, 2021 |
| 10-Q/A | Amended quarterly report | Jun 10, 2021 | Mar 31, 2021 |
| 10-Q | Quarterly report | May 24, 2021 | Mar 31, 2021 |
| 10-Q | Quarterly report | Nov 13, 2020 | Sep 30, 2020 |
Showing 20 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
- Measuring & Controlling Devices, NEC (SIC 3829)
- Listed as
- QSI (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Branford, CT
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1816431
- Former names
- HighCape Capital Acquisition Corp. (until Jun 10, 2021)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.