08/14/2025
4:25 PM | Natsis Tryfon (Filed by)
Tecogen (Subject)
| Form SCHEDULE 13G/A | |
08/13/2025
8:00 AM | Tecogen (Filer)
| Form 10-Q
General form for quarterly reports under Section 13 or 15(d) | |
08/12/2025
4:28 PM | Tecogen (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
07/28/2025
11:40 AM | ALBERTINE JOHN M (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/28/2025
9:55 AM | GALITEVA ANGELINA (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/28/2025
9:57 AM | LEWIS EARL R (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/28/2025
9:59 AM | GHONIEM AHMED (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/28/2025
10:02 AM | Hirsch Susan B (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/28/2025
10:04 AM | Rangesh Abinand (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/28/2025
10:07 AM | Deschenes Roger P. (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/28/2025
10:09 AM | Tecogen (Issuer)
Whiting John Kimball IV (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
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07/28/2025
10:12 AM | Lafaille Stephen (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
07/28/2025
9:27 AM | Tecogen (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
07/21/2025
1:42 PM | Tecogen (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
07/21/2025
11:03 AM | Tecogen (Filer)
| Form 424B4 | |
07/17/2025
11:15 PM | Tecogen (Filer)
| Form EFFECT | |
07/18/2025
7:28 AM | Tecogen (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
07/17/2025
8:44 PM | Tecogen (Filer)
| Form S-1MEF | |
07/16/2025
4:13 PM | Tecogen (Filer)
| Form S-1/A | |
07/16/2025
3:27 PM | Tecogen (Filer)
| Form S-1/A | |
07/16/2025
12:24 PM | Tecogen (Filer)
| Form S-1/A | |
07/14/2025
8:48 PM | Tecogen (Filer)
| Form S-1
Registration statement under Securities Act of 1933 | |
07/14/2025
8:02 AM | PANORA ROBERT A (Reporting)
Tecogen (Issuer)
| Form 4/A | |
07/14/2025
8:00 AM | PANORA ROBERT A (Reporting)
Tecogen (Issuer)
| Form 4/A | |
06/24/2025
4:41 PM | Lafaille Stephen (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/24/2025
11:59 AM | Lafaille Stephen (Reporting)
Tecogen (Issuer)
| Form 3
Initial statement of beneficial ownership of securities | |
06/24/2025
11:14 AM | Deschenes Roger P. (Reporting)
Tecogen (Issuer)
| Form 3
Initial statement of beneficial ownership of securities | |
06/20/2025
7:50 AM | PANORA ROBERT A (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/10/2025
3:37 PM | Tecogen (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
06/02/2025
5:14 PM | PANORA ROBERT A (Reporting)
Tecogen (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
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) | |
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