A business in context

CCCC 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. 4 · Ownership change

    Report date 2026-10-01 · 0001470831-26-000925

  2. 4 · Ownership change

    Report date 2026-10-01 · 0001470831-26-000924

  3. 8-K · Current report

    Report date 2026-09-25 · 0001628280-26-063497 · Items 7.01,8.01,9.01

  4. 4 · Ownership change

    Report date 2026-09-18 · 0001470831-26-000895

  5. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001628280-26-055494

  6. 8-K · Current report

    Report date 2026-08-11 · 0001628280-26-055490 · Items 2.02,9.01

  7. 4 · Ownership change

    Report date 2026-07-10 · 0001470831-26-000705

  8. 4 · Ownership change

    Report date 2026-07-01 · 0001470831-26-000689

  9. 4 · Ownership change

    Report date 2026-07-01 · 0001470831-26-000688

  10. 4 · Ownership change

    Report date 2026-06-24 · 0001470831-26-000673

  11. 4 · Ownership change

    Report date 2026-06-24 · 0001470831-26-000670

  12. 8-K · Current report

    Report date 2026-06-24 · 0001628280-26-045194 · Items 5.07,9.01

  13. 8-K · Current report

    Report date 2026-06-11 · 0001628280-26-042365 · Items 7.01,8.01,9.01

  14. 8-K · Current report

    Report date 2026-05-15 · 0001628280-26-035542 · Items 5.02

  15. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001628280-26-033865

  16. 8-K · Current report

    Report date 2026-05-12 · 0001628280-26-033861 · Items 2.02,7.01,9.01

  17. DEF 14A · Proxy statement

    Report date 2026-04-29 · 0001628280-26-028104

  18. 8-K · Current report

    Report date 2026-04-10 · 0001628280-26-024583 · Items 5.03,9.01

  19. 8-K · Current report

    Report date 2026-04-09 · 0001628280-26-024336 · Items 1.01,7.01,9.01

  20. 10-K · Annual report

    Report date 2025-12-31 · 0001628280-26-012000

  21. 8-K · Current report

    Report date 2026-02-26 · 0001628280-26-011971 · Items 2.02,9.01

  22. 8-K · Current report

    Report date 2026-01-14 · 0001628280-26-002010 · Items 7.01,9.01

  23. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001628280-25-049854

  24. 8-K · Current report

    Report date 2025-11-06 · 0001628280-25-049850 · Items 2.02,9.01

  25. 8-K · Current report

    Report date 2025-10-16 · 0001628280-25-045157 · Items 8.01

  26. 8-K · Current report

    Report date 2025-10-16 · 0001193125-25-241591 · Items 1.01,9.01

  27. 8-K · Current report

    Report date 2025-10-01 · 0001628280-25-043290 · Items 7.01,8.01,9.01

  28. 8-K · Current report

    Report date 2025-09-22 · 0001628280-25-042245 · Items 7.01,8.01,9.01

  29. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001628280-25-038587

  30. 8-K · Current report

    Report date 2025-08-07 · 0001628280-25-038576 · Items 2.02,7.01,8.01,9.01

  31. 8-K · Current report

    Report date 2025-06-18 · 0001628280-25-032155 · Items 5.03,5.07,9.01

  32. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001628280-25-022866

  33. 8-K · Current report

    Report date 2025-05-07 · 0001628280-25-022864 · Items 2.02,7.01,8.01,9.01

  34. DEF 14A · Proxy statement

    Report date 2025-04-29 · 0001628280-25-020466

  35. 8-K · Current report

    Report date 2025-04-14 · 0001628280-25-017612 · Items 5.02

  36. 10-K · Annual report

    Report date 2024-12-31 · 0001628280-25-008433

  37. 8-K · Current report

    Report date 2025-02-27 · 0001628280-25-008429 · Items 2.02,9.01

  38. 8-K · Current report

    Report date 2025-01-14 · 0001628280-25-001433 · Items 2.02,7.01

  39. 8-K · Current report

    Report date 2024-12-09 · 0001628280-24-050349 · Items 8.01,9.01

  40. 8-K · Current report

    Report date 2024-11-20 · 0001628280-24-048593 · Items 5.02,7.01,9.01

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: 0 transaction rows0SGrant / award: 2 transaction rows2AExercise / conversion: 2 transaction rows2MTax / exercise payment: 2 transaction rows2FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

6 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-18
2026-09-21
Adams KendraF · Tax / exercise payment
Disposed
Common Stock2775.03.39
2026-09-18
2026-09-21
Adams KendraM · Exercise / conversion
Acquired
Common Stock6250.00.0
2026-07-10
2026-07-13
REYNO LEONARDM · Exercise / conversion
Acquired
Common Stock15325.00.0
2026-07-10
2026-07-13
REYNO LEONARDF · Tax / exercise payment
Disposed
Common Stock7397.04.06
2026-07-01
2026-07-02
GROGAN DONNA ROYA · Grant / award
Acquired
Common Stock3341.04.34
2026-07-01
2026-07-02
Anderson Kenneth CarlA · Grant / award
Acquired
Common Stock2650.04.34

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 · 0001662579C4 Therapeutics, 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

View Wikidata identity and references ↗

  • C4 Therapeutics (United States) · alias · wikidata

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$35.58M$38.22M
2023-12-31$20.76M$22.95M
2022-12-31$31.10M$35.80M
2021-12-31$45.78M$56.92M

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

Explore the CPI history ↗