Tecogen Inc. (TGEN) SEC Filings — 2025

Filings

• Tecogen's Revenue Soars 31.5%, But Losses Widen Amid Strategic Shifts — 10-Q · Nov 13, 2025
• TECOGEN INC. Files 8-K on Financials and Operations — 8-K · Nov 12, 2025
• TECOGEN INC. Files 8-K for Regulation FD and Exhibits — 8-K · Sep 17, 2025
• TECOGEN INC. Files 8-K Report — 8-K · Sep 4, 2025
• Tecogen's Product Sales Soar, But Cash Drains Amidst Continued Losses — 10-Q · Aug 13, 2025
• TECOGEN INC. Files 8-K on Financials — 8-K · Aug 12, 2025
• TECOGEN INC. Reports Director Changes and Compensatory Arrangements — 8-K · Jul 28, 2025
• TECOGEN INC. Files 8-K Report — 8-K · Jul 21, 2025
• TECOGEN INC. Files 8-K for Material Agreement — 8-K · Jul 18, 2025
• Tecogen Files S-1/A for Public Offering, Eyes Market Debut — S-1/A · Jul 16, 2025
• Tecogen Files S-1 for Public Offering, Eyes Market Expansion — S-1 · Jul 15, 2025
• TECOGEN INC. Files 8-K on Security Holder Vote Matters — 8-K · Jun 10, 2025
• Tecogen Inc. Files Q1 2025 10-Q — 10-Q · May 13, 2025
• TECOGEN INC. Files 8-K: Financials and Operations Update — 8-K · May 12, 2025
• TECOGEN INC. Signs Material Definitive Agreement — 8-K · May 2, 2025
• TECOGEN INC. Files 8-K: Regulation FD & Exhibits — 8-K · May 1, 2025
• Tecogen Inc. Executive Compensation Details Revealed — DEF 14A · Apr 29, 2025
• Tecogen Inc. Files 2024 10-K — 10-K · Mar 18, 2025
• TECOGEN INC. Files 8-K on Operations and Financials — 8-K · Mar 17, 2025
• TECOGEN INC. Reports Director Departure and Election — 8-K · Mar 11, 2025
• TECOGEN INC. Files 8-K for Material Definitive Agreement — 8-K · Mar 3, 2025
• TECOGEN INC. Files 8-K Report — 8-K · Feb 19, 2025
• TECOGEN INC. Files 8-K Report — 8-K · Jan 17, 2025