secwatch.observer — SEC 8-K summary ====================================== Issuer: TECOGEN INC. (TGEN) CIK: 0001537435 Form: 8-K Filed at: 2026-04-08T23:59:59+00:00 Accession: 0001537435-26-000027 Event type: other_material Sentiment: neutral Materiality: 0.20 Item codes: 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Tecogen extends Advisory Agreement with John N. Hatsopoulos through March 2028 ------------------------------------------------------------------------------ - Advisory Agreement term extended to March 31, 2028. - Original agreement dated January 18, 2018, amended in 2019 and 2023. - Unanimous Board approval on April 7, 2026. - No changes to other terms of the agreement disclosed. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1537435/000153743526000027/0001537435-26-000027-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1537435/000153743526000027/tgen-20260408.htm HTML page: https://secwatch.observer/filing/0001537435-26-000027 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer