A business in context

QSI research notebook

Read the disclosures. Follow the relationships. Keep the dates in view.

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-20 · 8029 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 8-K · Current report

    Report date 2026-10-14 · 0001816431-26-000068 · Items 8.01,9.01

  2. 8-K · Current report

    Report date 2026-10-08 · 0001816431-26-000064 · Items 7.01,9.01

  3. 8-K · Current report

    Report date 2026-09-28 · 0001816431-26-000061 · Items 7.01,9.01

  4. 4 · Ownership change

    Report date 2026-09-21 · 0001140361-26-037481

  5. 4 · Ownership change

    Report date 2026-09-21 · 0001140361-26-037478

  6. 4 · Ownership change

    Report date 2026-09-21 · 0001140361-26-037476

  7. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001816431-26-000056

  8. 8-K · Current report

    Report date 2026-08-13 · 0001816431-26-000053 · Items 2.02,9.01

  9. 8-K · Current report

    Report date 2026-07-23 · 0001816431-26-000049 · Items 3.01

  10. 8-K · Current report

    Report date 2026-06-18 · 0001816431-26-000046 · Items 1.01,2.03,9.01

  11. 4 · Ownership change

    Report date 2026-06-22 · 0001140361-26-026294

  12. 4 · Ownership change

    Report date 2026-06-22 · 0001140361-26-026290

  13. 4 · Ownership change

    Report date 2026-06-22 · 0001140361-26-026287

  14. 4 · Ownership change

    Report date 2026-06-22 · 0001140361-26-026285

  15. 4 · Ownership change

    Report date 2026-05-18 · 0001140361-26-022245

  16. 8-K · Current report

    Report date 2026-05-15 · 0001816431-26-000037 · Items 5.07

  17. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001816431-26-000034

  18. 8-K · Current report

    Report date 2026-05-07 · 0001816431-26-000032 · Items 2.02,9.01

  19. DEF 14A · Proxy statement

    Report date 2026-04-01 · 0001816431-26-000021

  20. 10-K · Annual report

    Report date 2025-12-31 · 0001816431-26-000011

  21. 8-K · Current report

    Report date 2026-03-03 · 0001816431-26-000009 · Items 2.02,9.01

  22. 8-K · Current report

    Report date 2025-12-29 · 0001816431-25-000074 · Items 7.01,9.01

  23. 8-K · Current report

    Report date 2025-11-19 · 0001816431-25-000071 · Items 7.01,9.01

  24. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001816431-25-000066

  25. 8-K · Current report

    Report date 2025-11-05 · 0001816431-25-000065 · Items 2.02,9.01

  26. 8-K · Current report

    Report date 2025-09-26 · 0001140361-25-036498 · Items 1.01,9.01

  27. 8-K · Current report

    Report date 2025-09-23 · 0001816431-25-000060 · Items 1.01,1.02,2.03,9.01

  28. 8-K · Current report

    Report date 2025-08-08 · 0001816431-25-000056 · Items 7.01,9.01

  29. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001816431-25-000050

  30. 8-K · Current report

    Report date 2025-08-05 · 0001816431-25-000048 · Items 2.02,9.01

  31. 8-K · Current report

    Report date 2025-07-03 · 0001140361-25-025059 · Items 1.01,1.02,8.01,9.01

  32. 8-K · Current report

    Report date 2025-05-16 · 0001140361-25-019766 · Items 5.07

  33. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001816431-25-000040

  34. 8-K · Current report

    Report date 2025-05-15 · 0001816431-25-000038 · Items 2.02,9.01

  35. 8-K · Current report

    Report date 2025-04-10 · 0001816431-25-000032 · Items 7.01,9.01

  36. DEF 14A · Proxy statement

    Report date 2025-05-16 · 0001816431-25-000024

  37. 10-K · Annual report

    Report date 2024-12-31 · 0001816431-25-000014

  38. 8-K · Current report

    Report date 2025-03-03 · 0001816431-25-000011 · Items 2.02,9.01

  39. 8-K · Current report

    Report date 2025-01-03 · 0001140361-25-000295 · Items 1.01,9.01

  40. 8-K · Current report

    Report date 2024-12-11 · 0001140361-24-048977 · Items 1.01,1.02,9.01

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-10-15 · 2026 Q3: filings in this completed quarter; not a live transaction feed

Purchases and sales include open-market or private transactions. Grants, exercises and tax withholding are shown separately. Amendments and joint reports can overlap; rows are not a net-buying score. Prices retain the filing's units; consult its footnotes.

Transaction rows by code · counts, not monetary totals
Purchase: 0 transaction rows0PSale: 6 transaction rows6SGrant / award: 0 transaction rows0AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

6 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-22
2026-09-23
Hawkins Jeffrey AlanS · Sale
Disposed
Class A Common Stock9709.00.76
2026-09-22
2026-09-23
Keyes Jeffry R.S · Sale
Disposed
Class A Common Stock2493.00.76
2026-09-22
2026-09-23
LaPointe ChristianS · Sale
Disposed
Class A Common Stock4721.00.76
2026-09-21
2026-09-23
Hawkins Jeffrey AlanS · Sale
Disposed
Class A Common Stock20143.00.76
2026-09-21
2026-09-23
Keyes Jeffry R.S · Sale
Disposed
Class A Common Stock5172.00.76
2026-09-21
2026-09-23
LaPointe ChristianS · Sale
Disposed
Class A Common Stock9795.00.76

Identity & relationships

Wikidata structured data · retrieved 2026-10-15 · 1663 unambiguous CIK-linked entities; coverage is incomplete

These are sourced identity and relationship claims, with incomplete coverage. Headquarters locations do not describe sales, assets or operating exposure.

SEC issuer · 0001816431Quantum-Si Inc

No parent relationship is available in this import; this is not proof of independence.

No verified LEI join available.

GLEIF legal entity reference data · retrieved 2026-10-15 · 1199 checked identities; 0 unavailable records

Search names and former names
  • HighCape Capital Acquisition Corp. · former SEC name · 2020-07-02 to 2021-06-10

Revenue in constant purchasing power

USD revenue expressed in 2026-09 consumer-price dollars. Each annual period uses a CPI-U average weighted by the days in its actual reporting interval. This is a purchasing-power comparison, not a company-specific price or volume measure.

Year endedReported USD revenueCPI-adjusted USD revenue
2024-12-31$3.06M$3.28M
2023-12-31$1.08M$1.20M
2022-12-31$0$0
2021-12-31$0$0

Bureau of Labor Statistics · retrieved 2026-10-20 · 9 selected series; gaps remain missing

Explore the CPI history ↗