Tecogen Inc – Filings and Transcripts

NYSE American: TGEN
Share price (10/20/26): $2.13
Market cap (10/20/26): $64.3 million

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ended 06/30/26 Q2

ended 03/31/26 Q1

ended 12/31/25 FY 2025

ended 09/30/25 Q3

ended 06/30/25 Q2

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Prospectus supplement

Updated info for already-effective prospectus

Shelf registration

Initial registration of new securities – amended

Prospectus supplement with pricing info

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Whiting John Kimball IV

Lafaille Stephen

Deschenes Roger P.

Rangesh Abinand

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Form of Lock-Up Agreement

Reports Second Quarter 2026 Financial Results

Change in Directors, Officers or Compensation

Shareholder Vote Results

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Definitive proxy

Definitive proxy

Definitive proxy

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Notice of effectiveness

Notice of effectiveness

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Correspondence with the SEC