A business in context

CLIR research notebook

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

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-23 · 8022 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 4 · Ownership change

    Report date 2026-09-30 · 0001104659-26-113417

  2. 4 · Ownership change

    Report date 2026-09-30 · 0001104659-26-113415

  3. 4 · Ownership change

    Report date 2026-09-30 · 0001104659-26-113413

  4. 4 · Ownership change

    Report date 2026-09-30 · 0001104659-26-113412

  5. 8-K · Current report

    Report date 2026-09-14 · 0001104659-26-107294 · Items 7.01,9.01

  6. 8-K · Current report

    Report date 2026-08-19 · 0001104659-26-099235 · Items 2.02,7.01,9.01

  7. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001104659-26-096539

  8. 8-K · Current report

    Report date 2026-08-06 · 0001104659-26-093758 · Items 5.02,7.01,9.01

  9. 4 · Ownership change

    Report date 2026-07-22 · 0001227099-26-000005

  10. 8-K · Current report

    Report date 2026-07-21 · 0001104659-26-086099 · Items 1.01,3.02,7.01,9.01

  11. 8-K · Current report

    Report date 2026-07-06 · 0001104659-26-080744 · Items 8.01,9.01

  12. 4 · Ownership change

    Report date 2026-06-30 · 0001104659-26-080470

  13. 4 · Ownership change

    Report date 2026-06-30 · 0001104659-26-080468

  14. 4 · Ownership change

    Report date 2026-06-30 · 0001104659-26-080466

  15. 8-K · Current report

    Report date 2026-06-18 · 0001104659-26-075734 · Items 8.01,9.01

  16. 8-K · Current report

    Report date 2026-06-08 · 0001104659-26-071865 · Items 5.07,9.01

  17. 8-K · Current report

    Report date 2026-05-28 · 0001104659-26-068614 · Items 1.01,8.01,9.01

  18. 8-K · Current report

    Report date 2026-05-26 · 0001104659-26-067517 · Items 8.01,9.01

  19. 8-K · Current report

    Report date 2026-05-20 · 0001104659-26-065175 · Items 2.02,7.01,9.01

  20. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001104659-26-061940

  21. DEF 14A · Proxy statement

    Report date 2026-06-08 · 0001104659-26-049883

  22. 8-K · Current report

    Report date 2026-04-09 · 0001104659-26-042017 · Items 2.02,7.01,9.01

  23. 10-K · Annual report

    Report date 2025-12-31 · 0001104659-26-037699

  24. 8-K · Current report

    Report date 2026-03-30 · 0001104659-26-036808 · Items 8.01,9.01

  25. 8-K · Current report

    Report date 2026-03-06 · 0001104659-26-025867 · Items 3.03,5.03,7.01,9.01

  26. 8-K · Current report

    Report date 2026-02-26 · 0001104659-26-023536 · Items 5.07,5.08,9.01

  27. 8-K · Current report

    Report date 2026-02-24 · 0001104659-26-019768 · Items 2.02,7.01,9.01

  28. DEF 14A · Proxy statement

    Report date 2026-02-26 · 0001104659-26-009202

  29. 8-K · Current report

    Report date 2026-01-07 · 0001104659-26-001752 · Items 2.02,7.01,9.01

  30. 8-K · Current report

    Report date 2025-12-08 · 0001104659-25-119321 · Items 7.01

  31. 8-K · Current report

    Report date 2025-11-19 · 0001104659-25-114991 · Items 2.02,7.01,9.01

  32. 8-K · Current report

    Report date 2025-11-11 · 0001104659-25-113241 · Items 5.03,8.01,9.01

  33. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001104659-25-112472

  34. 8-K · Current report

    Report date 2025-09-30 · 0001104659-25-095017 · Items 3.01,9.01

  35. 8-K · Current report

    Report date 2025-08-26 · 0001104659-25-085648 · Items 8.01

  36. 8-K · Current report

    Report date 2025-08-14 · 0001104659-25-079277 · Items 2.02,7.01,9.01

  37. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001558370-25-011555

  38. 8-K · Current report

    Report date 2025-08-04 · 0001104659-25-075708 · Items 3.01,5.02,8.01,9.01

  39. 8-K · Current report

    Report date 2025-07-25 · 0001104659-25-071166 · Items 5.07

  40. 8-K · Current report

    Report date 2025-07-12 · 0001104659-25-068797 · Items 1.01,8.01,9.01

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-10-23 · 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: 1 transaction rows1PSale: 0 transaction rows0SGrant / award: 4 transaction rows4AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

5 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-07-22
2026-07-24
PASQUESI JOHN MP · Purchase
Acquired
Common Stock500000.03.54
2026-06-30
2026-07-02
Basenese LouA · Grant / award
Acquired
Non-Statutory Stock Options
Derivative security
4595.00.0
2026-06-30
2026-07-02
Silva Gil ToddA · Grant / award
Acquired
Restricted Stock Units
Derivative security
4087.00.0
2026-06-30
2026-07-02
Silva Gil ToddA · Grant / award
Acquired
Non-Statutory Stock Options
Derivative security
4595.00.0
2026-06-30
2026-07-02
DIGIANDOMENICO ANTHONYA · Grant / award
Acquired
Non-Statutory Stock Options
Derivative security
4595.00.0

Identity & relationships

Wikidata structured data · retrieved 2026-10-23 · 1658 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 · 0001434524ClearSign Technologies Corp

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 2026-10-23 · 1197 checked identities; 0 unavailable records

Search names and former names
  • CLEARSIGN COMBUSTION CORP · former SEC name · 2008-05-05 to 2019-10-31

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$3.60M$3.86M
2023-12-31$2.40M$2.66M
2022-12-31$374.0K$430.5K
2021-12-31$607.0K$754.7K
2020-12-31$0$0
2019-12-31$0$0
2018-12-31$530.0K$711.1K
2017-12-31$540.0K$742.3K

Bureau of Labor Statistics · retrieved 2026-10-23 · 9 selected series; gaps remain missing

Explore the CPI history ↗