TECOGEN INC. reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
North Billerica, MA
SEC filing record 1 source field available
Fiscal year end
31 December
TECOGEN INC. has filed 687 SEC EDGAR filings since 22 Dec 2011

SEC filing history

Showing 51-75 of 687 matching filings.

Per page
25
Current page
3
4

FORM 4

Filing date
28 Jul 2025
Reporting date
24 Jul 2025
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4

FORM 4

Filing date
28 Jul 2025
Reporting date
24 Jul 2025
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4

FORM 4

Filing date
28 Jul 2025
Reporting date
24 Jul 2025
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4

FORM 4

Filing date
28 Jul 2025
Reporting date
24 Jul 2025
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4

FORM 4

Filing date
28 Jul 2025
Reporting date
24 Jul 2025
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4

FORM 4

Filing date
28 Jul 2025
Reporting date
24 Jul 2025
SEC evidence
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4

FORM 4

Filing date
28 Jul 2025
Reporting date
24 Jul 2025
SEC evidence
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4

FORM 4

Filing date
28 Jul 2025
Reporting date
24 Jul 2025
SEC evidence
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4

FORM 4

Filing date
28 Jul 2025
Reporting date
24 Jul 2025
SEC evidence
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424B4 File 333-288740

424B4

Filing date
21 Jul 2025
Reporting date
Not listed
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EFFECT File 333-288668

EFFECT filing

Filing date
17 Jul 2025
Reporting date
Not listed
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S-1MEF File 333-288740

S-1MEF

Filing date
17 Jul 2025
Reporting date
Not listed
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S-1/A File 333-288668

S-1/A

Filing date
16 Jul 2025
Reporting date
Not listed
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S-1/A File 333-288668

S-1/A

Filing date
16 Jul 2025
Reporting date
Not listed
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S-1/A File 333-288668

S-1/A

Filing date
16 Jul 2025
Reporting date
Not listed
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CORRESP

CORRESP filing

Filing date
15 Jul 2025
Reporting date
Not listed
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CORRESP

CORRESP filing

Filing date
15 Jul 2025
Reporting date
Not listed
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S-1 File 333-288668

S-1

Filing date
15 Jul 2025
Reporting date
Not listed
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4/A

FORM 4/A

Filing date
14 Jul 2025
Reporting date
03 Jun 2025
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4/A

FORM 4/A

Filing date
14 Jul 2025
Reporting date
27 May 2025
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UPLOAD File 377-08143

UPLOAD filing

Filing date
01 Jul 2025
Reporting date
Not listed
SEC evidence
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DRS File 377-08143

DRS filing

Filing date
26 Jun 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
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