Tecogen Inc. filings document the regulatory record for a Delaware operating company with common stock listed on NYSE American under TGEN. The company's Form 8-K reports furnish earnings releases, supplemental presentation materials, Regulation FD product communications, advisory agreement matters, and other events tied to its clean energy products and chiller applications.
Proxy materials describe board matters, executive compensation, equity awards and shareholder voting items. Other disclosures address related-person transactions, promissory note matters, capital structure, risk factors referenced in periodic reports, and governance controls around company agreements and public communications.
TECOGEN INC. director Susan B. Hirsch received a compensation-related stock option grant covering 25,000 shares of common stock. The option has an exercise price of $5.17 per share and vests in equal 25% installments per year, providing potential future ownership if exercised. Following this award, Hirsch holds stock options for 25,000 shares directly.
Tecogen Inc. director John M. Albertine received a grant of stock options covering 25,000 shares of common stock. The options have an exercise price of $5.17 per share, vest 25% per year, and are scheduled to expire on June 26, 2036. Following this grant, he holds 25,000 derivative securities directly.
Tecogen Inc. director Earl Lewis reported a stock option grant for 25,000 shares of common stock. The option has an exercise price of $5.17 per share and vests in equal 25% installments each year. It expires on June 26, 2036, and this grant brings his directly held derivative position to 25,000 options.
TECOGEN INC. director Ahmed Ghoniem received a grant of stock options giving the right to buy 25,000 shares of common stock. The options have an exercise price of $5.1700 per share and vest 25% per year. Following this grant, he holds 25,000 derivative securities directly, with these options exercisable beginning on June 26, 2027 and expiring on June 26, 2036.
Tecogen Inc. director Angelina Galiteva reported an equity compensation grant in the form of a stock option. She received options to buy 25,000 shares of common stock at an exercise price of $5.17 per share, vesting 25% per year.
The options become exercisable starting on June 26, 2027 and expire on June 26, 2036. After this grant, she holds stock options covering 25,000 underlying shares directly. This is a compensation-related award, not an open-market purchase or sale.
Tecogen Inc. reports that Portolan Capital Management, LLC and George McCabe each beneficially own 1,552,232 shares of Common Stock, representing 5.19% of the class. The filing states Portolan holds sole voting and dispositive power over these shares; Mr. McCabe is identified as the manager and reports indirect ownership.
Tecogen Inc. reported the results of its 2026 Annual Meeting of Stockholders. Shareholders elected seven directors to serve until the 2027 annual meeting or until successors are elected and qualified, including John M. Albertine, Angelina M. Galiteva, Ahmed F. Ghoniem, John N. Hatsopoulos, Susan F. Hirsch, Earl R. Lewis III, and Abinand Rangesh.
Stockholders also ratified the appointment of Wolf & Company, P.C. as independent registered public accountants for the fiscal year ending December 31, 2026. In advisory votes, a majority approved the compensation paid to named executive officers for 2025 and recommended holding say‑on‑pay votes every three years.
Tecogen Inc. reported weaker results for the quarter ended March 31, 2026. Revenue was $6.34 million, down from $7.28 million a year earlier, as product sales, especially cogeneration and chiller units, fell sharply while service and energy production revenue grew modestly.
Gross profit declined to $2.59 million, and higher general and administrative, selling, and R&D costs pushed the operating loss to $2.14 million versus $0.59 million last year. Net loss widened to $2.12 million, or $0.07 per share, compared with $0.03 per share.
Operating activities used $3.11 million of cash, driven by the larger loss, inventory build and higher receivables. Tecogen ended the quarter with $9.33 million in cash and cash equivalents and total assets of $34.46 million, supported by prior-period equity financing completed in 2025.
Tecogen Inc. reported weaker results for the quarter ended March 31, 2026. Revenue was $6.34 million, down from $7.28 million, as product sales fell sharply while services and energy production grew modestly. Net loss widened to $2.12 million, compared with a $0.66 million loss a year earlier, driven by lower gross profit and higher operating expenses.
Gross profit was $2.59 million with a margin of 40.9%, down from 44.3%. Operating expenses rose to $4.73 million as the company invested in its hybrid-drive chiller and data center initiatives. Adjusted EBITDA declined to negative $1.68 million from negative $0.38 million. Tecogen ended the quarter with $9.33 million in cash and cash equivalents and highlighted an expected 1 MW chiller purchase order from Vertiv and more than $8 million of customer-approved projects, including $2.3 million already under purchase order with deposits.
TECOGEN INC. director Ahmed Ghoniem reported new share ownership through an option exercise and related stock purchase. He completed an open-market purchase of 12,723 shares of common stock at $0.786 per share and exercised stock options for 12,723 shares at the same price. Following these transactions, he holds 12,723 common shares directly and no remaining options from this grant.