News & Events

and Exhibit 99.1 to this Current Report on Form 8-K shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except as expressly set forth by specific reference in such a filing. Section 7.01 - Regulation FD Disclosure

and Exhibit 99.1 to this Current Report on Form 8-K shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except as expressly set forth by specific reference in such a filing. Section 7.01 - Regulation FD Disclosure

and Exhibit 99.1 to this Current Report on Form 8-K shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except as expressly set forth by specific reference in such a filing. Section 7.01 - Regulation FD Disclosure

and Exhibit 99.1 to this Current Report on Form 8-K shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except as expressly set forth by specific reference in such a filing. Section 7.01 - Regulation FD Disclosure

Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers. Appointment of Chief Financial Officer On July 24, 2025, the Board of Directors of Tecogen Inc., a Delaware corporation (“Company”) , determined to separate the role of Chief Executive Officer of the Company from the roles of Chief Financial Officer (“CFO”) and Treasurer, all of which executive positions have previously been held by Dr. Abinand Rangesh. In connection with such determination…

Other Events On July 21, 2025, Tecogen Inc., a Delaware corporation (“Company”) , closed on a firm commitment underwritten public offering of 3,985,000 shares of common stock, $.001 par value per share, at a price to the public of $5.00 per share, including an additional 485,000 shares to cover overallotments. The net proceeds from the offering, after deducting underwriting discounts and commissions and estimated offering expenses, were approximately $18,160,750. The Company intends to use th…

Entry into a Material Definitive Agreement. On July 18, 2025, Tecogen Inc., a Delaware corporation (“Company”) , entered into an underwriting agreement (“Underwriting Agreement”) with Roth Capital Partners, LLC, as the sole manager and underwriter (“underwriter”) of an underwritten public offering (“Offering”) , pursuant to which the Company agreed to issue and sell 3,500,000 shares (“Firm Shares”) of its common stock, $.001 par value per share (“Common Stock”) , at a price to the public of $…

and Exhibit 99.01 to this Current Report on Form 8-K shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act or the Exchange Act, except as expressly set forth by specific reference in such a filing. Forward-Looking Statements This press release contains “forward-looking statements” which may describe strategies, goals, outlooks or…

and Exhibit 99.01 to this Current Report on Form 8-K shall shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Entry into a Material Definitive Agreement. On May 1, 2025, Mr. Earl R. Lewis, III, a director of Tecogen Inc. (the “Company”), converted to common stock of the Company the balance due under the promissory note dated September 18, 2024 by the Company in favor of Mr. Lewis in the original principal amount of $500,000 (the “Note”). The balance due under the Note, including accrued interest, as of May 1, 2025 was $514,148.22. The price per share used to determine the number of shares to be issue…

and Exhibit 99.01 to this Current Report on Form 8-K shall shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. In February 2025, Mr. Robert A. Panora, President and COO of Tecogen Inc. (the “Company”), increased his time commitment to the Company to full time in order to address operational matters associated with anticipated growth opportunities for the Company. Mr. Panora has performed services on a reduced work schedule since January 2020. In view of the…

Entry into a Material Definitive Agreement. On February 28, 2025, Tecogen Inc. (“Company,” “we,” “our, ”us”) entered into a Sales and Marketing Agreement with Vertiv Corporation, an Ohio corporation (“Vertiv”), a subsidiary of Vertiv Holdings Co., a Delaware corporation (NYSE: VRT), relating to sales and marketing of Tecogen DTx Chillers (“Tecogen Chillers”) for data center cooling applications (the “Agreement”). The Agreement is effective March 1, 2025 and has a term of two years. The Agreem…