A business in context

REFR research notebook

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

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-22 · 8029 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001493152-26-036332

  2. 8-K · Current report

    Report date 2026-06-11 · 0001493152-26-028339 · Items 5.07,9.01

  3. 8-K · Current report

    Report date 2026-06-02 · 0001493152-26-027517 · Items 3.01,9.01

  4. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001493152-26-021790

  5. DEF 14A · Proxy statement

    Report date 2026-04-30 · 0001493152-26-020409

  6. 10-K/A · Annual report

    Report date 2025-12-31 · 0001493152-26-011611

  7. 10-K · Annual report

    Report date 2025-12-31 · 0001493152-26-008988

  8. 8-K · Current report

    Report date 2026-02-18 · 0001493152-26-007368 · Items 1.01,9.01

  9. 4 · Ownership change

    Report date 2025-12-31 · 0001493152-26-000397

  10. 4 · Ownership change

    Report date 2025-12-31 · 0001493152-26-000395

  11. 4 · Ownership change

    Report date 2025-12-31 · 0001493152-26-000394

  12. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001493152-25-021062

  13. 8-K · Current report

    Report date 2025-09-15 · 0001493152-25-013406 · Items 5.02,9.01

  14. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001641172-25-022577

  15. 8-K · Current report

    Report date 2025-06-12 · 0001641172-25-015113 · Items 5.07,9.01

  16. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001641172-25-009244

  17. DEF 14A · Proxy statement

    Report date 2025-04-30 · 0001641172-25-007704

  18. 10-K/A · Annual report

    Report date 2023-12-31 · 0001641172-25-004925

  19. 10-K · Annual report

    Report date 2024-12-31 · 0001493152-25-009377

  20. 4 · Ownership change

    Report date 2024-12-31 · 0001493152-25-000115

  21. 4 · Ownership change

    Report date 2024-12-31 · 0001493152-25-000114

  22. 4 · Ownership change

    Report date 2024-12-31 · 0001493152-25-000113

  23. 4 · Ownership change

    Report date 2024-12-31 · 0001493152-25-000112

  24. 4 · Ownership change

    Report date 2024-12-31 · 0001493152-25-000111

  25. 10-Q · Quarterly report

    Report date 2024-09-30 · 0001493152-24-044002

  26. 10-Q · Quarterly report

    Report date 2024-06-30 · 0001493152-24-029910

  27. 8-K · Current report

    Report date 2024-06-13 · 0001493152-24-023797 · Items 5.07,9.01

  28. 10-Q · Quarterly report

    Report date 2024-03-31 · 0001493152-24-018416

  29. DEF 14A · Proxy statement

    Report date 2024-04-26 · 0001493152-24-016709

  30. 10-K · Annual report

    Report date 2023-12-31 · 0001493152-24-009207

  31. SC 13G · Ownership disclosure

    0001997166-24-000002

  32. 10-Q · Quarterly report

    Report date 2023-09-30 · 0001493152-23-039137

  33. SC 13G · Ownership disclosure

    0001997166-23-000004

  34. 10-Q · Quarterly report

    Report date 2023-06-30 · 0001493152-23-026617

  35. 8-K · Current report

    Report date 2023-06-08 · 0001493152-23-020853 · Items 5.07,9.01

  36. 8-K · Current report

    Report date 2023-06-04 · 0001493152-23-020085 · Items 3.01,5.02,9.01

  37. 10-Q · Quarterly report

    Report date 2023-03-31 · 0001493152-23-015427

  38. DEF 14A · Proxy statement

    Report date 2023-04-28 · 0001493152-23-014679

  39. 10-K · Annual report

    Report date 2022-12-31 · 0001493152-23-007116

  40. 10-Q · Quarterly report

    Report date 2022-09-30 · 0001493152-22-030341

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: 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

0 matching transaction rows.

No matching transaction rows in the covered quarter. This does not establish that no insider transactions occurred.

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 · 0000793524RESEARCH FRONTIERS 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

    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$1.34M$1.43M
    2023-12-31$909.6K$1.01M
    2022-12-31$539.7K$621.3K
    2021-12-31$1.26M$1.57M
    2020-12-31$828.5K$1.08M
    2019-12-31$1.56M$2.06M
    2018-12-31$1.49M$2.00M
    2017-12-31$1.51M$2.07M

    Bureau of Labor Statistics · retrieved 2026-10-22 · 9 selected series; gaps remain missing

    Explore the CPI history ↗