PART I Overview Quantum-Si Incorporated (including its subsidiaries, Quantum-Si, QSI, or the Company) was incorporated in Delaware on June 10, 2020 as HighCape Capital Acquisition Corp. (HighCape). The Companys legal name became Quantum-Si Incorporated following a business combination on June 10, 2021 between the Company and Q-SI Operations Inc. (formerly Quantum-Si Incorporated) (the Business Combination), which was founded in 2013. We are a life sciences company focused on proteomics research,...
Q2 FY2026 — expected 2026-09-14
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2026-03-03 | 2025-12-31 | 0001816431-26-000011 | EDGAR | 78K words |
| 2025-03-03 | 2024-12-31 | 0001816431-25-000014 | EDGAR | — |
| 2024-02-29 | 2023-12-31 | 0001140361-24-010438 | EDGAR | — |
| 2023-03-17 | 2022-12-31 | 0001140361-23-012126 | EDGAR | — |
| 2022-03-01 | 2021-12-31 | 0001140361-22-007334 | EDGAR | — |
| 2021-03-30 | 2020-12-31 | 0001104659-21-044037 | EDGAR | — |
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2025-11-05 | 2025-09-30 | 0001816431-25-000066 | EDGAR | 24K words |
| 2025-08-05 | 2025-06-30 | 0001816431-25-000050 | EDGAR | — |
| 2025-05-15 | 2025-03-31 | 0001816431-25-000040 | EDGAR | — |
| 2024-11-12 | 2024-09-30 | 0001816431-24-000020 | EDGAR | — |
| 2024-08-07 | 2024-06-30 | 0001628280-24-035626 | EDGAR | — |
| 2024-05-09 | 2024-03-31 | 0001140361-24-025201 | EDGAR | — |
| 2023-11-09 | 2023-09-30 | 0001140361-23-052474 | EDGAR | — |
| 2023-08-07 | 2023-06-30 | 0001140361-23-038382 | EDGAR | — |
| 2023-05-11 | 2023-03-31 | 0001140361-23-024185 | EDGAR | — |
| 2022-11-08 | 2022-09-30 | 0001140361-22-040513 | EDGAR | — |
| 2022-08-08 | 2022-06-30 | 0001140361-22-028744 | EDGAR | — |
| 2022-05-10 | 2022-03-31 | 0001140361-22-018360 | EDGAR | — |
| Filed | Accession | Source | Full Text |
|---|---|---|---|
| 2026-03-03 | 0001816431-26-000009 | EDGAR | 4K words |
| 2025-12-29 | 0001816431-25-000074 | EDGAR | — |
| 2025-11-20 | 0001816431-25-000071 | EDGAR | — |
| 2025-11-05 | 0001816431-25-000065 | EDGAR | — |
| 2025-09-29 | 0001140361-25-036498 | EDGAR | — |
| 2025-09-26 | 0001816431-25-000060 | EDGAR | — |
| 2025-08-08 | 0001816431-25-000056 | EDGAR | — |
| 2025-08-05 | 0001816431-25-000048 | EDGAR | — |
| 2025-07-07 | 0001140361-25-025059 | EDGAR | — |
| 2025-05-19 | 0001140361-25-019766 | EDGAR | — |
129 total filings indexed. 101 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR
| CIK | 0001816431 |
| Ticker | QSI |
| Exchange | Nasdaq |
| SIC | 3829: Measuring & Controlling Devices, NEC |
| Incorporated | DE |
| Website | https://www.quantum-si.com |
| Listed | 2021-06-11 |
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