A business in context

TGEN 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. 8-K · Current report

    Report date 2026-10-14 · 0001537435-26-000092 · Items 8.01,9.01

  2. 4/A · Ownership change

    Report date 2026-06-26 · 0001808199-26-000003

  3. 4/A · Ownership change

    Report date 2026-06-26 · 0001585814-26-000003

  4. 4/A · Ownership change

    Report date 2026-06-26 · 0001537435-26-000088

  5. 4/A · Ownership change

    Report date 2026-06-26 · 0001537435-26-000087

  6. 4/A · Ownership change

    Report date 2026-06-26 · 0001537435-26-000086

  7. 8-K · Current report

    Report date 2026-08-31 · 0001537435-26-000072 · Items 8.01,9.01

  8. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001537435-26-000066

  9. 8-K · Current report

    Report date 2026-08-12 · 0001537435-26-000063 · Items 2.02,7.01,9.01

  10. 8-K · Current report

    Report date 2026-06-26 · 0001537435-26-000053 · Items 5.02

  11. 4 · Ownership change

    Report date 2026-06-26 · 0001537435-26-000051

  12. 4 · Ownership change

    Report date 2026-06-26 · 0001537435-26-000050

  13. 4 · Ownership change

    Report date 2026-06-26 · 0001537435-26-000049

  14. 8-K · Current report

    Report date 2026-06-05 · 0001537435-26-000040 · Items 5.07

  15. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001537435-26-000038

  16. 8-K · Current report

    Report date 2026-05-12 · 0001537435-26-000036 · Items 2.02,7.01,9.01

  17. DEF 14A · Proxy statement

    Report date 2026-04-21 · 0001537435-26-000029

  18. 8-K · Current report

    Report date 2026-04-08 · 0001537435-26-000027 · Items 8.01,9.01

  19. 10-K · Annual report

    Report date 2025-12-31 · 0001537435-26-000013

  20. 8-K · Current report

    Report date 2026-03-17 · 0001537435-26-000008 · Items 2.02,7.01,9.01

  21. 8-K · Current report

    Report date 2026-01-06 · 0001537435-26-000003 · Items 7.01

  22. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001537435-25-000143

  23. 8-K · Current report

    Report date 2025-11-12 · 0001537435-25-000141 · Items 2.02,7.01,9.01

  24. 8-K · Current report

    Report date 2025-09-17 · 0001537435-25-000137 · Items 7.01,9.01

  25. 8-K · Current report

    Report date 2025-09-02 · 0001537435-25-000134 · Items 8.01

  26. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001537435-25-000131

  27. 8-K · Current report

    Report date 2025-08-12 · 0001537435-25-000129 · Items 2.02,7.01,9.01

  28. 8-K · Current report

    Report date 2025-07-24 · 0001537435-25-000111 · Items 5.02,8.01,9.01

  29. 8-K · Current report

    Report date 2025-07-21 · 0001537435-25-000097 · Items 8.01,9.01

  30. 8-K · Current report

    Report date 2025-07-18 · 0001537435-25-000092 · Items 1.01,8.01,9.01

  31. 8-K · Current report

    Report date 2025-06-10 · 0001537435-25-000056 · Items 5.07

  32. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001537435-25-000037

  33. 8-K · Current report

    Report date 2025-05-12 · 0001537435-25-000034 · Items 2.02,7.01,9.01

  34. 8-K · Current report

    Report date 2025-05-01 · 0001537435-25-000024 · Items 1.01

  35. 8-K · Current report

    Report date 2025-04-30 · 0001628280-25-021421 · Items 7.01,9.01

  36. DEF 14A · Proxy statement

    Report date 2025-04-29 · 0001628280-25-020504

  37. 10-K · Annual report

    Report date 2024-12-31 · 0001537435-25-000018

  38. 8-K · Current report

    Report date 2025-03-17 · 0001537435-25-000017 · Items 2.02,7.01,9.01

  39. 8-K · Current report

    Report date 2025-02-14 · 0001537435-25-000014 · Items 5.02

  40. 8-K · Current report

    Report date 2025-02-28 · 0001537435-25-000012 · Items 1.01,9.01

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: 5 transaction rows5AExercise / 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
2026-06-26
2026-09-08 · Amendment
Whiting John Kimball IVA · Grant / award
Acquired
Common Stock19342.00.0
2026-06-26
2026-09-08 · Amendment
Panora RobertA · Grant / award
Acquired
Common Stock9671.00.0
2026-06-26
2026-09-08 · Amendment
Lafaille StephenA · Grant / award
Acquired
Common Stock29013.00.0
2026-06-26
2026-09-08 · Amendment
Deschenes Roger P.A · Grant / award
Acquired
Common Stock29013.00.0
2026-06-26
2026-09-08 · Amendment
Rangesh AbinandA · Grant / award
Acquired
Common Stock174081.00.0

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 · 0001537435TECOGEN 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
  • TECOGEN INC · former SEC name · 2011-12-22 to 2013-03-27

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$22.62M$24.30M
2023-12-31$25.14M$27.80M
2022-12-31$25.00M$28.78M
2021-12-31$24.40M$30.33M
2020-12-31$28.25M$36.78M
2019-12-31$33.43M$44.05M
2018-12-31$35.88M$48.15M
2017-12-31$33.20M$45.64M

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

Explore the CPI history ↗