TECOGEN INC. — 8-K Filings
179 8-K filings on record
This page lists all 8-K filings submitted to the SEC by TECOGEN INC. (TGEN), sorted by most recent first. Each row links to the full filing on EdgarLookup. TECOGEN INC. has filed 179 8-K documents with the SEC since 2011. To view all SEC filings by TECOGEN INC., see the full filings list.
All
10-K
10-K/A
10-Q
25
3
3/A
4
4/A
424B3
424B4
425
5
8-A12B
8-A12G
8-K
8-K/A
AW
CERT
CERTNAS
CORRESP
CT ORDER
D
DEF 14A
DEF 14C
DEFA14A
DRS
EFFECT
POS AM
PRE 14A
PRE 14C
RW
S-1
S-1/A
S-1MEF
S-3
S-3/A
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 8-K | 8-K | 0001537435-26-000008 | Mar 18, 2026 | Mar 17, 2026 |
| 8-K | 8-K | 0001537435-26-000003 | Jan 7, 2026 | Jan 6, 2026 |
| 8-K | 8-K | 0001537435-25-000141 | Nov 12, 2025 | — |
| 8-K | 8-K | 0001537435-25-000137 | Sep 17, 2025 | — |
| 8-K | 8-K | 0001537435-25-000134 | Sep 4, 2025 | Sep 2, 2025 |
| 8-K | 8-K | 0001537435-25-000129 | Aug 12, 2025 | — |
| 8-K | 8-K | 0001537435-25-000111 | Jul 28, 2025 | Jul 24, 2025 |
| 8-K | 8-K | 0001537435-25-000097 | Jul 21, 2025 | — |
| 8-K | 8-K | 0001537435-25-000092 | Jul 18, 2025 | — |
| 8-K | 8-K | 0001537435-25-000056 | Jun 10, 2025 | — |
| 8-K | 8-K | 0001537435-25-000034 | May 12, 2025 | — |
| 8-K | 8-K | 0001537435-25-000024 | May 2, 2025 | May 1, 2025 |
| 8-K | 8-K | 0001628280-25-021421 | May 1, 2025 | Apr 30, 2025 |
| 8-K | 8-K | 0001537435-25-000017 | Mar 17, 2025 | — |
| 8-K | 8-K | 0001537435-25-000014 | Mar 11, 2025 | Feb 14, 2025 |
| 8-K | 8-K | 0001537435-25-000012 | Mar 3, 2025 | Feb 28, 2025 |
| 8-K | 8-K | 0001537435-25-000008 | Feb 19, 2025 | — |
| 8-K | 8-K | 0001537435-25-000003 | Jan 17, 2025 | Jan 14, 2025 |
| 8-K | 8-K | 0001537435-24-000119 | Nov 14, 2024 | Nov 13, 2024 |
| 8-K | 8-K | 0001537435-24-000110 | Sep 23, 2024 | Sep 18, 2024 |
| 8-K | 8-K | 0001537435-24-000104 | Aug 8, 2024 | — |
| 8-K | 8-K | 0001537435-24-000097 | Jul 25, 2024 | Jul 23, 2024 |
| 8-K | 8-K | 0001537435-24-000078 | Jun 6, 2024 | — |
| 8-K | 8-K | 0001537435-24-000060 | May 9, 2024 | — |
| 8-K | 8-K | 0001537435-24-000054 | May 3, 2024 | May 1, 2024 |
| 8-K | 8-K | 0001537435-24-000020 | Mar 14, 2024 | — |
| 8-K | 8-K | 0001537435-24-000018 | Mar 7, 2024 | Mar 1, 2024 |
| 8-K | 8-K | 0001537435-24-000015 | Feb 5, 2024 | Feb 1, 2024 |
| 8-K | 8-K | 0001537435-24-000002 | Jan 16, 2024 | — |
| 8-K | 8-K | 0001537435-23-000157 | Dec 14, 2023 | Dec 12, 2023 |
| 8-K | 8-K | 0001537435-23-000145 | Nov 8, 2023 | — |
| 8-K | 8-K | 0001537435-23-000131 | Oct 10, 2023 | Oct 9, 2023 |
| 8-K | 8-K | 0001537435-23-000116 | Sep 26, 2023 | Sep 22, 2023 |
| 8-K | 8-K | 0001537435-23-000093 | Aug 9, 2023 | — |
| 8-K | 8-K | 0001537435-23-000090 | Jul 24, 2023 | Jul 19, 2023 |
| 8-K | 8-K | 0001537435-23-000062 | Jun 8, 2023 | — |
| 8-K | 8-K | 0001537435-23-000041 | May 11, 2023 | May 10, 2023 |
| 8-K | 8-K | 0001537435-23-000036 | May 3, 2023 | — |
| 8-K | 8-K | 0001537435-23-000009 | Mar 16, 2023 | — |
| 8-K | 8-K | 0001537435-23-000003 | Jan 30, 2023 | — |
| 8-K | 8-K | 0001537435-22-000134 | Dec 8, 2022 | — |
| 8-K | 8-K | 0001537435-22-000129 | Nov 10, 2022 | — |
| 8-K | 8-K | 0001537435-22-000115 | Sep 21, 2022 | Sep 19, 2022 |
| 8-K | 8-K | 0001537435-22-000101 | Aug 11, 2022 | — |
| 8-K | 8-K | 0001537435-22-000089 | Jul 20, 2022 | — |
| 8-K | 8-K | 0001537435-22-000063 | Jun 15, 2022 | — |
| 8-K | 8-K | 0001537435-22-000061 | Jun 10, 2022 | — |
| 8-K | 8-K | 0001537435-22-000057 | May 12, 2022 | — |
| 8-K | 8-K | 0001537435-22-000035 | Mar 22, 2022 | — |
| 8-K | 8-K | 0001537435-22-000013 | Mar 10, 2022 | — |