Tecogen Inc.
TGENNYSECIK 1537435IndustrialsFiscal year ends Dec 31
Reports and events: 286 filings
Newest first, by EDGAR acceptance time (Eastern). Each filing’s page lists its documents on sec.gov and, for 10-K and 10-Q reports, the extracted sections.
What the forms are: 10-K, 10-Q, 8-K, Form 4, DEF 14A, Schedule 13D, Schedule 13G, amendments, accession numbers.
| Filed | Form | What it is | Accession number |
|---|---|---|---|
| 2026-10-1416:02 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0001537435-26-000092 |
| 2026-08-3121:23 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0001537435-26-000072 |
| 2026-08-3121:22 ET | S-1/A | Registration statement, amended | 0001537435-26-000071 |
| 2026-08-1317:59 ET | 10-Q | Quarterly reportPeriod 2026-06-30 | 0001537435-26-000066 |
| 2026-08-1220:58 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001537435-26-000063 |
| 2026-07-0113:15 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001537435-26-000053 |
| 2026-06-0520:01 ET | 8-K | 5.07 Shareholder vote results | 0001537435-26-000040 |
| 2026-05-1314:46 ET | 10-Q | Quarterly reportPeriod 2026-03-31 | 0001537435-26-000038 |
| 2026-05-1221:15 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001537435-26-000036 |
| 2026-04-2114:00 ET | DEF 14A | Proxy statementPeriod 2026-04-21 | 0001537435-26-000029 |
| 2026-04-0821:00 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0001537435-26-000027 |
| 2026-03-1919:46 ET | 10-K | Annual reportPeriod 2025-12-31 | 0001537435-26-000013 |
| 2026-03-1821:55 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001537435-26-000008 |
| 2026-01-0722:58 ET | 8-K | 7.01 Regulation FD disclosure | 0001537435-26-000003 |
| 2025-11-1314:01 ET | 10-Q | Quarterly reportPeriod 2025-09-30 | 0001537435-25-000143 |
| 2025-11-1222:05 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001537435-25-000141 |
| 2025-09-1713:38 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001537435-25-000137 |
| 2025-09-0420:52 ET | 8-K | 8.01 Other events | 0001537435-25-000134 |
| 2025-08-1313:00 ET | 10-Q | Quarterly reportPeriod 2025-06-30 | 0001537435-25-000131 |
| 2025-08-1221:28 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001537435-25-000129 |
| 2025-07-2814:27 ET | 8-K | 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0001537435-25-000111 |
| 2025-07-2118:42 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0001537435-25-000097 |
| 2025-07-1812:28 ET | 8-K | 1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0001537435-25-000092 |
| 2025-07-1621:13 ET | S-1/A | Registration statement, amended | 0001537435-25-000086 |
| 2025-07-1620:27 ET | S-1/A | Registration statement, amended | 0001537435-25-000083 |
| 2025-07-1617:24 ET | S-1/A | Registration statement, amended | 0001537435-25-000081 |
| 2025-07-1501:48 ET | S-1 | Registration statement | 0001537435-25-000073 |
| 2025-06-1020:37 ET | 8-K | 5.07 Shareholder vote results | 0001537435-25-000056 |
| 2025-05-1321:30 ET | 10-Q | Quarterly reportPeriod 2025-03-31 | 0001537435-25-000037 |
| 2025-05-1221:04 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001537435-25-000034 |
| 2025-05-0220:10 ET | 8-K | 1.01 Entry into a material agreement | 0001537435-25-000024 |
| 2025-05-0116:48 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-25-021421 |
| 2025-04-2913:27 ET | DEF 14A | Proxy statementPeriod 2025-04-29 | 0001628280-25-020504 |
| 2025-03-1816:23 ET | 10-K | Annual reportPeriod 2024-12-31 | 0001537435-25-000018 |
| 2025-03-1720:43 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001537435-25-000017 |
| 2025-03-1122:02 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001537435-25-000014 |
| 2025-03-0314:27 ET | 8-K | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001537435-25-000012 |
| 2025-02-1922:28 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0001537435-25-000008 |
| 2025-01-1722:19 ET | 8-K | 8.01 Other events | 0001537435-25-000003 |
| 2024-11-1416:25 ET | 10-Q | Quarterly reportPeriod 2024-09-30 | 0001537435-24-000121 |
| 2024-11-1423:07 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001537435-24-000119 |
| 2024-09-2321:14 ET | 8-K | 1.01 Entry into a material agreement | 0001537435-24-000110 |
| 2024-08-0815:58 ET | 10-Q | Quarterly reportPeriod 2024-06-30 | 0001537435-24-000106 |
| 2024-08-0812:40 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001537435-24-000104 |
| 2024-07-2516:42 ET | 8-K | 1.01 Entry into a material agreement | 0001537435-24-000097 |
| 2024-06-0620:27 ET | 8-K | 5.07 Shareholder vote results | 0001537435-24-000078 |
| 2024-05-0917:42 ET | 10-Q | Quarterly reportPeriod 2024-03-31 | 0001537435-24-000063 |
| 2024-05-0913:05 ET | 8-K | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001537435-24-000060 |
| 2024-05-0320:03 ET | 8-K | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001537435-24-000054 |
| 2024-04-2315:11 ET | DEF 14A | Proxy statementPeriod 2024-04-23 | 0001537435-24-000044 |
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:13 ET. Listed shows no prices and gives no investment advice.