Company facts
- Industry
- Measuring & Controlling Devices, NEC
- Headquarters
- Branford, Connecticut
- Most recent report
- 10-Q, filed Aug 13, 2026
- Incorporated
- Delaware
- Filings on record
- 462 filings
- On EDGAR
- CIK 1816431
- Fiscal year ends
- December
- Filer status
- Non-accelerated filer, Smaller reporting company
Financials 8 of 26
News 8 of 93
- 8-K Quarterly results Aug 13, 2026
- 8-K Current report on a material event Jul 24, 2026
- 8-K Significant contract Jun 24, 2026
- 8-K Shareholder vote results May 15, 2026
- 8-K Quarterly results May 7, 2026
- 8-K Quarterly results Mar 3, 2026
- 8-K Current report on a material event Dec 29, 2025
- 8-K Current report on a material event Nov 20, 2025
Prospectuses and Registrations 8 of 52
- 25-NSE Notice that a security was delisted Jun 10, 2026
- S-8 Registration statement for an employee plan Mar 3, 2026
- 424B3 Prospectus supplement for an offering Oct 29, 2025
- S-3/A Shelf registration statement, amended Oct 9, 2025
- S-3 Shelf registration statement Sep 26, 2025
- 424B5 Prospectus supplement for an offering Jul 7, 2025
- 424B5 Prospectus supplement for an offering Jul 7, 2025
- S-8 Registration statement for an employee plan Mar 3, 2025
Proxies 8 of 13
- DEFA14A Extra proxy material Apr 1, 2026
- DEF 14A Proxy statement for a shareholder vote Apr 1, 2026
- DEFA14A Extra proxy material Mar 20, 2025
- DEF 14A Proxy statement for a shareholder vote Mar 20, 2025
- DEFR14A Apr 30, 2024
- DEFA14A Extra proxy material Apr 1, 2024
- DEF 14A Proxy statement for a shareholder vote Apr 1, 2024
- PRE 14A Preliminary proxy statement Mar 22, 2024
Ownership 8 of 233
- SCHEDULE 13D/A Large holder reported an active stake, amended Aug 28, 2026
- SCHEDULE 13G/A Large holder reported a passive stake, amended Jul 29, 2026
- 4 Insider reported a trade Jun 24, 2026
- 4 Insider reported a trade Jun 24, 2026
- 4 Insider reported a trade Jun 24, 2026
- 4 Insider reported a trade Jun 24, 2026
- 144 Notice of a proposed sale of restricted stock Jun 24, 2026
- 144 Notice of a proposed sale of restricted stock Jun 24, 2026
Other 8 of 45
- SD Conflict minerals disclosure May 22, 2026
- ARS Annual report sent to shareholders Apr 1, 2026
- SD Conflict minerals disclosure May 22, 2025
- ARS Annual report sent to shareholders Mar 20, 2025
- ARS Annual report sent to shareholders Apr 1, 2024
- EFFECT Notice that a registration became effective Aug 22, 2023
- CORRESP Reply to SEC staff Aug 18, 2023
- UPLOAD Comment letter from SEC staff Aug 18, 2023
Everything here comes from Quantum-Si Inc's own filings on SEC EDGAR. The filing list is rechecked every hour.