Tecogen Inc. reports

Location
45 First Avenue, Waltham, MA
State of incorporation
DE
Fiscal year end
December 31
Data updated at
8/21/2024, 01:23 AM
Form type Sec Links Description Filing date Reporting date
10-Q Report | Data 10-Q Aug 8, 2024 Jun 30, 2024
8-K Report | Data 8-K Aug 8, 2024 Aug 8, 2024
8-K Report | Data 8-K Jul 25, 2024 Jul 23, 2024
8-K Report | Data 8-K Jun 6, 2024 Jun 6, 2024
10-Q Report | Data 10-Q May 9, 2024 Mar 31, 2024
8-K Report | Data 8-K May 9, 2024 May 9, 2024
8-K Report | Data 8-K May 3, 2024 May 1, 2024
10-K Report | Data 10-K Mar 25, 2024 Dec 31, 2023
8-K Report | Data 8-K Mar 14, 2024 Mar 14, 2024
8-K Report | Data 8-K Mar 7, 2024 Mar 1, 2024
8-K Report | Data 8-K Feb 5, 2024 Feb 1, 2024
8-K Report | Data 8-K Jan 16, 2024 Jan 16, 2024
8-K Report | Data 8-K Dec 14, 2023 Dec 12, 2023
10-Q Report | Data 10-Q Nov 9, 2023 Sep 30, 2023
8-K Report | Data 8-K Nov 8, 2023 Nov 8, 2023
8-K Report | Data 8-K Oct 10, 2023 Oct 9, 2023
8-K Report | Data 8-K Sep 26, 2023 Sep 22, 2023
10-Q Report | Data 10-Q Aug 10, 2023 Jun 30, 2023
8-K Report | Data 8-K Aug 9, 2023 Aug 9, 2023
8-K Report | Data 8-K Jul 24, 2023 Jul 19, 2023
8-K Report | Data 8-K Jun 8, 2023 Jun 8, 2023
10-Q Report | Data 10-Q May 11, 2023 Mar 31, 2023
8-K Report | Data 8-K May 11, 2023 May 10, 2023
8-K Report | Data 8-K May 3, 2023 May 3, 2023
10-K Report | Data 10-K Mar 23, 2023 Dec 31, 2022
8-K Report | Data 8-K Mar 16, 2023 Mar 16, 2023
8-K Report | Data 8-K Jan 30, 2023 Jan 30, 2023
8-K Report | Data 8-K Dec 8, 2022 Dec 8, 2022
10-Q Report | Data 10-Q Nov 10, 2022 Sep 30, 2022
8-K Report | Data 8-K Nov 10, 2022 Nov 10, 2022
8-K Report 8-K Sep 21, 2022 Sep 19, 2022
10-Q Report | Data 10-Q Aug 11, 2022 Jun 30, 2022
8-K Report | Data 8-K Aug 11, 2022 Aug 11, 2022
8-K Report | Data 8-K Jul 20, 2022 Jul 20, 2022
8-K Report 8-K Jun 15, 2022 Jun 15, 2022
8-K Report 8-K Jun 10, 2022 Jun 10, 2022
10-Q Report | Data 10-Q May 12, 2022 Mar 31, 2022
8-K Report 8-K May 12, 2022 May 12, 2022
SC 13G Report SC 13G May 10, 2022
8-K Report 8-K Mar 22, 2022 Mar 22, 2022
10-K Report | Data 10-K Mar 10, 2022 Dec 31, 2021
8-K Report 8-K Mar 10, 2022 Mar 10, 2022
8-K Report 8-K Mar 9, 2022 Mar 8, 2022
8-K Report 8-K Jan 20, 2022 Jan 20, 2022
10-Q Report | Data 10-Q Nov 10, 2021 Sep 30, 2021
8-K Report 8-K Nov 10, 2021 Nov 10, 2021
8-K Report 8-K Nov 10, 2021 Nov 10, 2021
8-K Report 8-K Oct 12, 2021 Oct 12, 2021
8-K Report 8-K Sep 21, 2021 Sep 21, 2021
8-K Report 8-K Sep 13, 2021 Sep 13, 2021
10-Q Report | Data 10-Q Aug 12, 2021 Jun 30, 2021
8-K Report 8-K Aug 12, 2021 Aug 12, 2021
8-K Report 8-K Jun 16, 2021 Jun 16, 2021
10-Q Report | Data 10-Q May 13, 2021 Mar 31, 2021
8-K Report 8-K May 13, 2021 May 13, 2021
8-K Report 8-K Mar 30, 2021 Mar 29, 2021
10-K Report | Data 10-K Mar 18, 2021 Dec 31, 2020
8-K Report 8-K Mar 11, 2021 Mar 11, 2021
8-K Report 8-K Feb 25, 2021 Feb 25, 2021
8-K Report 8-K Feb 9, 2021 Feb 9, 2021
8-K Report 8-K Jan 20, 2021 Jan 20, 2021
10-Q Report | Data 10-Q Nov 12, 2020 Sep 30, 2020
8-K Report 8-K Nov 12, 2020 Nov 12, 2020
10-Q Report | Data 10-Q Aug 13, 2020 Jun 30, 2020
8-K Report 8-K Aug 13, 2020 Aug 13, 2020
8-K Report 8-K Jul 21, 2020 Jul 20, 2020
8-K Report 8-K Jul 8, 2020 Jul 8, 2020
8-K Report 8-K Jun 9, 2020 Jun 9, 2020
8-K Report 8-K Jun 5, 2020 Jun 5, 2020
8-K Report 8-K Jun 4, 2020 Jun 4, 2020
8-K Report 8-K May 29, 2020 May 29, 2020
8-K Report 8-K May 26, 2020 May 26, 2020
8-K Report 8-K May 15, 2020 May 15, 2020
10-Q Report | Data 10-Q May 14, 2020 Mar 31, 2020
8-K Report 8-K May 14, 2020 May 14, 2020
8-K Report 8-K May 12, 2020 May 11, 2020
8-K Report 8-K Apr 17, 2020 Apr 17, 2020
8-K Report 8-K Apr 14, 2020 Apr 14, 2020
8-K Report 8-K Apr 7, 2020 Apr 7, 2020
8-K Report 8-K Apr 1, 2020 Apr 1, 2020
8-K Report 8-K Mar 18, 2020 Mar 18, 2020
8-K Report 8-K Mar 17, 2020 Mar 17, 2020
10-K Report | Data 10-K Mar 12, 2020 Dec 31, 2019
8-K Report 8-K Mar 12, 2020 Mar 12, 2020
10-Q Report | Data 10-Q Nov 12, 2019 Sep 30, 2019
8-K Report 8-K Nov 12, 2019 Nov 12, 2019
8-K Report 8-K Oct 15, 2019 Oct 15, 2019
10-Q Report | Data 10-Q Aug 13, 2019 Jun 30, 2019
8-K Report 8-K Aug 13, 2019 Aug 13, 2019
8-K Report 8-K Jul 25, 2019 Jul 22, 2019
8-K/A Report 8-K Jul 25, 2019 Jun 10, 2019
8-K Report 8-K Jun 10, 2019 Jun 10, 2019
8-K Report 8-K Jun 10, 2019 Jun 6, 2019
10-Q Report | Data 10-Q May 15, 2019 Mar 31, 2019
8-K Report 8-K May 14, 2019 May 14, 2019
10-K Report | Data 10-K Mar 29, 2019 Dec 31, 2018
8-K Report 8-K Mar 28, 2019 Mar 28, 2019
SC 13G/A Report SC 13G/A Mar 26, 2019
8-K Report 8-K Mar 18, 2019 Mar 18, 2019
8-K Report 8-K Mar 8, 2019 Mar 7, 2019
8-K Report 8-K - DIRECTOR APPOINTMENT Feb 1, 2019 Feb 1, 2019
8-K Report 8-K Jan 8, 2019 Jan 7, 2019
8-K Report 8-K Dec 28, 2018 Dec 28, 2018
8-K Report 8-K Dec 17, 2018 Dec 17, 2018
8-K Report 8-K Nov 19, 2018 Nov 19, 2018
10-Q Report | Data 10-Q Nov 13, 2018 Sep 30, 2018
8-K Report 8-K Nov 13, 2018 Nov 13, 2018
8-K Report 8-K Sep 18, 2018 Sep 17, 2018
8-K Report 8-K Sep 4, 2018 Sep 4, 2018
10-Q Report | Data 10-Q Aug 14, 2018 Jun 30, 2018
8-K Report Aug 14, 2018 Aug 14, 2018
SC 13G Report SC 13G Aug 1, 2018
8-K Report 8-K Jun 7, 2018 Jun 7, 2018
SC 13G Report SC 13G May 22, 2018
SC 13G/A Report SC 13G/A May 16, 2018
10-Q Report | Data 20180331 10-Q May 15, 2018 Mar 31, 2018
8-K Report 8-K May 15, 2018 May 15, 2018
8-K Report 8-K May 8, 2018 May 8, 2018
8-K Report 8-K Apr 12, 2018 Apr 12, 2018
8-K Report 8-K Mar 30, 2018 Mar 30, 2018
10-K Report | Data 10-K Mar 21, 2018 Dec 31, 2017
8-K Report 8-K Mar 21, 2018 Mar 21, 2018
8-K Report 8-K Mar 5, 2018 Mar 5, 2018
8-K Report 8-K Mar 2, 2018 Mar 2, 2018
8-K Report 8-K Feb 14, 2018 Feb 14, 2018
SC 13G/A Report SC 13G/A #4 Feb 12, 2018
SC 13G/A Report SC 13G/A Jan 11, 2018
8-K Report 8-K SOUTHWEST CONTRACT Jan 9, 2018 Jan 9, 2018
8-K Report 8-K -JNH RETIREMENT Jan 8, 2018 Jan 8, 2018
8-K Report 8-K Dec 18, 2017 Dec 14, 2017
8-K Report TGEN_ER 8-K Nov 14, 2017 Nov 13, 2017
10-Q Report | Data 10-Q Nov 9, 2017 Sep 30, 2017
8-K Report 8-K Oct 26, 2017 Oct 24, 2017
SC 13D/A Report Oct 3, 2017
8-K Report 8-K Sep 28, 2017 Sep 28, 2017
8-K Report 8-K Sep 5, 2017 Sep 5, 2017
8-K Report EARNINGS RELEASE 8-K Aug 14, 2017 Aug 14, 2017
10-Q Report | Data TGN-2017.06.30 10-Q Aug 14, 2017 Jun 30, 2017
8-K Report | Data MID-YEAR SHAREHOLDER LETTER 8-K Jul 18, 2017 Jul 17, 2017
8-K/A Report 8-K/A Jul 11, 2017 May 18, 2017
8-K Report 8-K Jul 7, 2017 Jul 1, 2017
8-K Report TGEN 2017 ANNUAL MEETING 8-K Jul 5, 2017 Jun 29, 2017
SC 13G Report SC 13G MONOVOUKAS 05 23 17 Jun 23, 2017
8-K Report MERGER COMPLETE 8-K May 22, 2017 May 18, 2017
8-K Report 8-K May 12, 2017 May 12, 2017
10-Q Report | Data 10-Q May 11, 2017 Mar 31, 2017
8-K Report 8-K May 2, 2017 Apr 28, 2017
8-K/A Report 8-K/A May 2, 2017 Apr 12, 2017
8-K Report 8-K Apr 12, 2017 Apr 12, 2017
8-K Report 8-K Mar 24, 2017 Mar 24, 2017
8-K Report 8-K Mar 24, 2017 Mar 24, 2017
10-K Report | Data 10-K Mar 23, 2017 Dec 31, 2016
SC 13G/A Report SC 13G/A #3 Feb 15, 2017
SC 13D Report SCHEDULE 13D Feb 14, 2017
SC 13D/A Report Feb 13, 2017
8-K Report 8-K Feb 2, 2017 Feb 2, 2017
SC 13G Report SC 13G Feb 1, 2017
SC 13G/A Report SC 13G/A Dec 14, 2016
8-K Report 8-K Dec 6, 2016 Dec 2, 2016
8-K Report 8-K Dec 1, 2016 Dec 1, 2016
SC 13D Report Nov 25, 2016
8-K Report 8-K Nov 16, 2016 Nov 10, 2016
10-Q Report | Data 10-Q Nov 14, 2016 Sep 30, 2016
8-K Report 8-K Nov 2, 2016 Nov 1, 2016
8-K Report 8-K Oct 25, 2016 Oct 25, 2016
8-K Report 8-K Sep 2, 2016 Aug 31, 2016
8-K Report 8-K Aug 12, 2016 Aug 10, 2016
10-Q Report | Data 10-Q Aug 11, 2016 Jun 30, 2016
8-K Report 8-K Aug 8, 2016 Aug 2, 2016
8-K Report 8-K-WARRANT_AMENDMENT Jun 30, 2016 Jun 30, 2016
8-K Report 8-K- ANNUAL MEETING Jun 28, 2016 Jun 28, 2016
8-K Report | Data 8-K May 24, 2016 May 24, 2016
8-K Report | Data 8-K May 12, 2016 May 11, 2016
10-Q Report | Data 10-Q May 11, 2016 Mar 31, 2016
8-K Report 8-K Apr 15, 2016 Apr 15, 2016
8-K Report | Data 8-K Apr 15, 2016 Apr 15, 2016
8-K Report | Data 8-K Mar 31, 2016 Mar 28, 2016
10-K Report | Data 10-K Mar 30, 2016 Dec 31, 2015
SC 13G Report SC 13G Feb 19, 2016
SC 13G/A Report TGEN SC 13G/A OF JOHN N. HATSOPOULOS Feb 16, 2016
SC 13G/A Report TGEN SC 13G/A OF JOSEPH RITCHIE Feb 16, 2016
SC 13G/A Report SC 13G/A Feb 16, 2016
SC 13G/A Report SC 13G/A Feb 16, 2016
8-K Report 8-K Dec 31, 2015 Dec 28, 2015
8-K Report 8-K Nov 13, 2015 Nov 10, 2015
10-Q Report | Data 10-Q Nov 10, 2015 Sep 30, 2015
8-K Report 8-K Oct 19, 2015 Oct 19, 2015
8-K Report 8-K Oct 5, 2015 Oct 5, 2015
8-K Report 8-K Sep 3, 2015 Sep 3, 2015
8-K Report 8-K Aug 13, 2015 Aug 7, 2015
10-Q Report | Data 10-Q Aug 6, 2015 Jun 30, 2015
8-K Report 8-K Aug 6, 2015 Aug 3, 2015
8-K Report 8-K Jun 18, 2015 Jun 15, 2015
8-K Report 8-K Jun 17, 2015 Jun 11, 2015
8-K Report 8-K May 11, 2015 May 11, 2015
10-Q Report | Data 10-Q May 11, 2015 Mar 31, 2015
10-K Report | Data 10-K Mar 25, 2015 Dec 31, 2014
SC 13G Report SC 13G Feb 23, 2015
SC 13G Report SC 13G DR. GEORGE N HATSOPOULOS Feb 18, 2015
SC 13G Report SC 13G JOHN N. HATSOPOULOS Feb 18, 2015
SC 13G Report SC 13G J. RITCHIE Feb 18, 2015
8-K Report 8-K Jan 30, 2015 Jan 28, 2015
8-K Report 8-K Jan 2, 2015 Jan 2, 2015
10-Q Report | Data 10-Q Nov 14, 2014 Sep 30, 2014
8-K Report 8-K Nov 14, 2014 Nov 13, 2014
8-K Report 8-K Nov 3, 2014 Oct 29, 2014
8-K Report 8-K Oct 9, 2014 Oct 9, 2014
8-K Report 8-K Sep 17, 2014 Sep 16, 2014
8-K Report 8-K Aug 29, 2014 Aug 28, 2014
8-K/A Report 8-K/A Aug 19, 2014 Aug 14, 2014
8-K Report 8-K Aug 15, 2014 Aug 14, 2014
10-Q Report | Data 10-Q Aug 14, 2014 Jun 30, 2014
8-K Report 8-K Jul 14, 2014 Jul 7, 2014
8-K Report 8-K Jul 3, 2014 Jun 27, 2014
8-K Report 8-K Jun 3, 2014 Jun 3, 2014
8-K Report 8-K May 20, 2014 May 15, 2014
10-Q Report | Data 10-Q May 15, 2014 Mar 31, 2014
8-K Report 8-K May 15, 2014 May 15, 2014
10-K/A Report 10-K/A Apr 1, 2014 Dec 31, 2013
8-K Report 8-K Apr 1, 2014 Apr 1, 2014
10-K Report | Data 10-K Mar 31, 2014 Dec 31, 2013
8-K Report 8-K Dec 30, 2013 Dec 23, 2013
8-K Report 8-K Dec 6, 2013 Dec 5, 2013
8-K Report 8-K Nov 26, 2013 Nov 25, 2013
10-Q Report | Data 10-Q Nov 14, 2013 Sep 30, 2013
8-K Report 8-K Nov 13, 2013 Nov 8, 2013
8-K Report 8-K Nov 8, 2013 Nov 6, 2013
8-K Report 8-K Oct 21, 2013 Oct 16, 2013
10-Q Report | Data 10-Q Aug 14, 2013 Jun 30, 2013
8-K Report FORM 8-K Jul 25, 2013 Jul 25, 2013
8-K Report 8-K Jul 3, 2013 Jun 27, 2013
8-K Report 8-K May 20, 2013 May 17, 2013
10-Q Report | Data 10-Q May 14, 2013 Mar 31, 2013
8-K Report 8-K May 2, 2013 May 2, 2013
10-K Report | Data 10-K Mar 27, 2013 Dec 31, 2012