Tecogen Inc – Filings and Transcripts

NYSE American: TGEN
Share price (6/18/26): $6.03
Market cap (6/18/26): $180 million

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ended 03/31/26 Q1

ended 12/31/25 FY 2025

ended 09/30/25 Q3

ended 06/30/25 Q2

ended 03/31/25 Q1

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Prospectus supplement with pricing info

Addition of securities to prior initial registration

Initial registration of new securities – amended

Initial registration of new securities – amended

Initial registration of new securities – amended

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Portolan Capital Management, LLC

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Shareholder Vote Results

Reports First Quarter 2026 Financial Results

Other Events, Financial Statements or Exhibits

Announces Fourth Quarter and Year-End 2025 Results

Material Disclosure

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Definitive proxy

Definitive proxy

Definitive proxy

Preliminary proxy

Definitive proxy

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Notice of effectiveness

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC