Quantum-Si Inc
- CIK: 0001816431
- EIN: 85-1388175
- Business address: 530 OLD WHITFIELD STREET, GUILFORD, Connecticut, 06437
Information
Mailing address
530 OLD WHITFIELD STREET, GUILFORD, Delaware, 06437Phone
(203) 458-7100State location
ConnecticutState of incorporation
DelawareFiscal year end
December 31SIC
3829 - (CF Office: Office of Life Sciences) MEASURING & CONTROLLING DEVICES, NECFilings
N/A
About Quantum-Si Inc
Quantum-Si Inc (CIK: 0001816431) is an American company incorporated in the state of Connecticut. Head office is located at 530 OLD WHITFIELD STREET, GUILFORD, Connecticut, 06437. Work in the industry 3829 - (CF Office: Office of Life Sciences) MEASURING & CONTROLLING DEVICES, NEC. Quantum-Si Inc is a public company and trade via Over-The-Counter (OTC).Old names:
- HighCape Capital Acquisition Corp. from 2020-02-Jul to 2021-10-Jun
Ownership
| Owner | Filings | Transaction Date | Type of Owner |
|---|---|---|---|
| Jafri Amir | 0001994864 | Sep-22-2023 | director |
| Kenny John P. | 0001719325 | May-19-2023 | director |
| Keyes Jeffry R. | 0001557736 | May-15-2023 | officer: Chief Financial Officer |
| Mendel Scott | 0001515051 | May-11-2023 | director |
| Johnston Grace | 0001958477 | Dec-21-2022 | officer: Chief Commercial Officer |
| Hawkins Jeffrey Alan | 0001505034 | Oct-10-2022 | director, officer: Chief Executive Officer |
| Bajaj Vikram | 0001820733 | Jun-15-2022 | director |
| SCHNEIDER PATRICK | 0001927702 | May-09-2022 | officer: President and COO |
| ROTHBERG JONATHAN M | 0001076352 | Jun-10-2021 | director, 10 percent owner |
| MCKENNA MICHAEL P | 0001207108 | Jun-10-2021 | officer: President and COO |
| DEKKERS MARIJN E | 0001216068 | Jun-10-2021 | director |
| Fattori Ruth A | 0001306826 | Jun-10-2021 | director |
| Makes Brigid | 0001375927 | Jun-10-2021 | director |
| Tananbaum James B. | 0001581754 | Jun-10-2021 | director |
| Drayton Claudia | 0001629827 | Jun-10-2021 | officer: Chief Financial Officer |
| 4C Holdings I, LLC | 0001846591 | Jun-10-2021 | 10 percent owner |
| LaPointe Christian | 0001856912 | Jun-10-2021 | officer: General Counsel & Corp. Secr. |
| Mina Michael | 0001856954 | Jun-10-2021 | director |
| Dyer Matthew | 0001856966 | Jun-10-2021 | officer: Chief Business Officer |
| Stark John VIII | 0001864883 | Jun-10-2021 | director, officer: Chief Executive Officer |
| 2012 JMR Trust Common LLC | 0001866647 | Jun-10-2021 | 10 percent owner |
| RAKIN KEVIN | 0001184421 | Sep-03-2020 | director, officer: Chairman and CEO |
| Taub Robert | 0001357752 | Sep-03-2020 | director |
| Zuga Matt | 0001790214 | Sep-03-2020 | director, 10 percent owner |
| Loebel Antony | 0001818770 | Sep-03-2020 | director |
| Colpman David | 0001818776 | Sep-03-2020 | director |
| HighCape Capital Acquisition LLC | 0001818795 | Sep-03-2020 | director, 10 percent owner, other: Director by Deputization |
Stock Chart
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Jobs
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Recent SEC Filings
Includes all SEC registration details as well as a list of all documents (S-1, Prospectus, Current Reports, 8-K, 10K, Annual Reports) filed by Quantum-Si Inc
| Filings | Format | Description | Filed/Effective | File/Film Number |
|---|---|---|---|---|
| 144 | Document | Filing for proposed sale of securities under Rule 144 Acc-no: 0002032947-26-000001 (33 Act) Size: 0 KB |
Mar-24-2026 | 26784359 |
| 144 | Document | Filing for proposed sale of securities under Rule 144 Acc-no: 0001856912-26-000001 (33 Act) Size: 0 KB |
Mar-24-2026 | 26784355 |
| 144 | Document | Filing for proposed sale of securities under Rule 144 Acc-no: 0001557736-26-000001 (33 Act) Size: 0 KB |
Mar-24-2026 | 26784349 |
| 144 | Document | Filing for proposed sale of securities under Rule 144 Acc-no: 0001505034-26-000001 (33 Act) Size: 0 KB |
Mar-24-2026 | 26784336 |
| 4 | Document | Statement of changes in beneficial ownership of securities Acc-no: 0001140361-26-009612 ( Act) Size: 0 KB |
Mar-16-2026 | |
| 4 | Document | Statement of changes in beneficial ownership of securities Acc-no: 0001140361-26-009605 ( Act) Size: 0 KB |
Mar-16-2026 | |
| 4 | Document | Statement of changes in beneficial ownership of securities Acc-no: 0001140361-26-009602 ( Act) Size: 0 KB |
Mar-16-2026 | |
| 4 | Document | Statement of changes in beneficial ownership of securities Acc-no: 0001140361-26-009598 ( Act) Size: 0 KB |
Mar-16-2026 | |
| 4 | Document | Statement of changes in beneficial ownership of securities Acc-no: 0001140361-26-008322 ( Act) Size: 0 KB |
Mar-09-2026 | |
| 4 | Document | Statement of changes in beneficial ownership of securities Acc-no: 0001140361-26-008320 ( Act) Size: 0 KB |
Mar-09-2026 | |
| S-8 | Document | Initial registration statement for securities to be offered to employees pursuant to employee benefit plans Acc-no: 0001193125-26-088741 (33 Act) Size: KB |
Mar-03-2026 | 26716384 |
| 10-K | Document | Annual report pursuant to section 13 and 15(d) Acc-no: 0001816431-26-000011 (34 Act) Size: KB |
Mar-03-2026 | 26715131 |
| 8-K | Document | Current report filing Acc-no: 0001816431-26-000009 (34 Act) Size: KB |
Mar-03-2026 | 26714058 |
| 4 | Document | Statement of changes in beneficial ownership of securities Acc-no: 0001140361-26-006970 ( Act) Size: 0 KB |
Feb-26-2026 | |
| 8-K | Document | Current report filing Acc-no: 0001816431-25-000074 (34 Act) Size: KB |
Dec-29-2025 | 251609379 |
| 4 | Document | Statement of changes in beneficial ownership of securities Acc-no: 0002032947-25-000005 ( Act) Size: 0 KB |
Dec-22-2025 | |
| 144 | Document | Filing for proposed sale of securities under Rule 144 Acc-no: 0002032947-25-000004 (33 Act) Size: 0 KB |
Dec-22-2025 | 251593937 |
| 4 | Document | Statement of changes in beneficial ownership of securities Acc-no: 0001856912-25-000005 ( Act) Size: 0 KB |
Dec-22-2025 | |
| 144 | Document | Filing for proposed sale of securities under Rule 144 Acc-no: 0001856912-25-000004 (33 Act) Size: 0 KB |
Dec-22-2025 | 251593911 |
| 4 | Document | Statement of changes in beneficial ownership of securities Acc-no: 0001557736-25-000006 ( Act) Size: 0 KB |
Dec-22-2025 |
Recent 20 filings. View all Quantum-Si Inc filings
Reviews
Catherine
Thanks I look forward to using the product to improve my skin tone
Jean Bishop
Very good communication and delivery made within the timeframe I was advised of
Samuel Ejimofor
It's being easier working on the website. And I recommend, it's a great website
Frequently Asked Questions
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Disclaimer: The information on the Service is provided with the understanding that the Company is not herein engaged in rendering legal, accounting, tax, or other professional advice and services. As such, it should not be used as a substitute for consultation with professional accounting, tax, legal or other competent advisers.
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