Tecogen Inc. SEC filings TGEN

Tecogen Inc. has 688 filings in SEC EDGAR's recent list, going back to Dec 22, 2011. Its latest annual report, Form 10-K, was filed on Mar 19, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 13, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 14, 2026 (other events). The company's fiscal year ends on December 31.

Form Description Filed Period
10-Q Quarterly report Aug 13, 2026 Jun 30, 2026
10-Q Quarterly report May 13, 2026 Mar 31, 2026
10-Q Quarterly report Nov 13, 2025 Sep 30, 2025
10-Q Quarterly report Aug 13, 2025 Jun 30, 2025
10-Q Quarterly report May 13, 2025 Mar 31, 2025
10-Q Quarterly report Nov 14, 2024 Sep 30, 2024
10-Q Quarterly report Aug 8, 2024 Jun 30, 2024
10-Q Quarterly report May 9, 2024 Mar 31, 2024
10-Q Quarterly report Nov 9, 2023 Sep 30, 2023
10-Q Quarterly report Aug 10, 2023 Jun 30, 2023
10-Q Quarterly report May 11, 2023 Mar 31, 2023
10-Q Quarterly report Nov 10, 2022 Sep 30, 2022
10-Q Quarterly report Aug 11, 2022 Jun 30, 2022
10-Q Quarterly report May 12, 2022 Mar 31, 2022
10-Q Quarterly report Nov 10, 2021 Sep 30, 2021
10-Q Quarterly report Aug 12, 2021 Jun 30, 2021
10-Q Quarterly report May 13, 2021 Mar 31, 2021
10-Q Quarterly report Nov 12, 2020 Sep 30, 2020
10-Q Quarterly report Aug 13, 2020 Jun 30, 2020
10-Q Quarterly report May 14, 2020 Mar 31, 2020
10-Q Quarterly report Nov 12, 2019 Sep 30, 2019
10-Q Quarterly report Aug 13, 2019 Jun 30, 2019
10-Q Quarterly report May 15, 2019 Mar 31, 2019
10-Q Quarterly report Nov 13, 2018 Sep 30, 2018
10-Q Quarterly report Aug 14, 2018 Jun 30, 2018
10-Q Quarterly report May 15, 2018 Mar 31, 2018
10-Q Quarterly report Nov 9, 2017 Sep 30, 2017
10-Q Quarterly report Aug 14, 2017 Jun 30, 2017
10-Q Quarterly report May 11, 2017 Mar 31, 2017
10-Q Quarterly report Nov 14, 2016 Sep 30, 2016
10-Q Quarterly report Aug 11, 2016 Jun 30, 2016
10-Q Quarterly report May 11, 2016 Mar 31, 2016
10-Q Quarterly report Nov 10, 2015 Sep 30, 2015
10-Q Quarterly report Aug 6, 2015 Jun 30, 2015
10-Q Quarterly report May 11, 2015 Mar 31, 2015
10-Q Quarterly report Nov 14, 2014 Sep 30, 2014
10-Q Quarterly report Aug 14, 2014 Jun 30, 2014
10-Q Quarterly report May 15, 2014 Mar 31, 2014
10-Q Quarterly report Nov 14, 2013 Sep 30, 2013
10-Q Quarterly report Aug 14, 2013 Jun 30, 2013
10-Q Quarterly report May 14, 2013 Mar 31, 2013

Showing 41 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.

Company profile

Industry
Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (SIC 3585)
Listed as
TGEN (NYSE)
Fiscal year ends
December 31
Incorporated in
DE
Headquarters
North Billerica, MA
SEC filer status
Non-accelerated filer, Smaller reporting company
SEC CIK
1537435
Former names
TECOGEN INC (until Mar 27, 2013)

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Source: SEC EDGAR filings. This is company-reported data, not investment advice.