05/13/2025
4:30 PM | Tecogen (Filer)
| Form 10-Q
General form for quarterly reports under Section 13 or 15(d) | |
05/07/2025
8:26 AM | LEWIS EARL R (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/05/2025
11:10 AM | Tecogen (Filer)
| Form CERT | |
05/05/2025
10:28 AM | Tecogen (Filer)
| Form 8-A12B | |
05/05/2025
8:37 AM | LEWIS EARL R (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/01/2025
11:48 AM | Tecogen (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
04/29/2025
8:27 AM | Tecogen (Filer)
| Form DEF 14A | |
03/25/2025
4:11 PM | LEWIS EARL R (Reporting)
Tecogen (Issuer)
| Form 4/A | |
03/25/2025
4:12 PM | LEWIS EARL R (Reporting)
Tecogen (Issuer)
| Form 4/A | |
03/18/2025
11:23 AM | Tecogen (Filer)
| Form 10-K
Annual report pursuant to Section 13 or 15(d) | |
03/17/2025
3:43 PM | Tecogen (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
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03/03/2025
8:27 AM | Tecogen (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
02/19/2025
4:28 PM | Tecogen (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
01/17/2025
4:19 PM | Tecogen (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
12/06/2024
8:12 AM | LEWIS EARL R (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
12/06/2024
8:14 AM | LEWIS EARL R (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
11/14/2024
10:25 AM | Tecogen (Filer)
| Form 10-Q
General form for quarterly reports under Section 13 or 15(d) | |
09/27/2024
11:55 AM | HATSOPOULOS JOHN (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
09/25/2024
3:29 PM | HATSOPOULOS JOHN (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
09/23/2024
4:14 PM | Tecogen (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
08/20/2024
9:18 AM | HATSOPOULOS JOHN (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
08/08/2024
10:58 AM | Tecogen (Filer)
| Form 10-Q
General form for quarterly reports under Section 13 or 15(d) | |
08/08/2024
7:40 AM | Tecogen (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
07/25/2024
11:42 AM | Tecogen (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
07/25/2024
11:42 AM | Tecogen (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
07/17/2024
3:38 PM | LEWIS EARL R (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/15/2024
11:09 AM | LEWIS EARL R (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/12/2024
3:44 PM | HATSOPOULOS JOHN (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/18/2024
2:48 PM | LEWIS EARL R (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/18/2024
2:51 PM | ALBERTINE JOHN M (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/06/2024
3:27 PM | Tecogen (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
05/29/2024
2:03 PM | HATSOPOULOS JOHN (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/29/2024
2:25 PM | HATSOPOULOS JOHN (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/28/2024
9:12 AM | HATSOPOULOS JOHN (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
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