Welcome to our dedicated page for Tecogen SEC filings (Ticker: TGEN), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
This page provides access to Tecogen Inc. (TGEN) SEC filings, giving investors a primary source of regulatory information about the company’s operations, financial condition, and capital markets activity. Tecogen is a Delaware corporation with common stock listed on the NYSE American, and it files periodic and current reports with the U.S. Securities and Exchange Commission under this listing.
Through its registration statement on Form S-1 and subsequent filings, Tecogen describes its business as designing, manufacturing, marketing, selling, installing, and maintaining high-efficiency, ultra-clean cogeneration products, including natural gas engine-driven combined heat and power systems, air conditioning systems, and high-efficiency water heaters. Filings also explain its three reportable segments: Products, Services, and Energy Production, which together cover equipment sales, long-term service contracts, and energy sales in the form of electricity, heat, hot water, and cooling.
Key filing types for Tecogen include:
10-K and 10-Q: Annual and quarterly reports that present audited or reviewed financial statements, segment disclosures, risk factors, and management’s discussion of results across Products, Services, and Energy Production. These documents also discuss factors such as demand fluctuations, competing technologies, regulatory changes, incentives and rebates, and financing conditions.
8-K: Current reports used by Tecogen to announce material events, such as quarterly earnings releases and supplemental presentations, underwritten public offerings of common stock, executive appointments, debt prepayments, and Regulation FD disclosures about investor FAQs and presentations on topics like AI data center chillers and hybrid drive technology.
S-1 and related offering documents: Registration statements and prospectuses that describe Tecogen’s capital raises, including the terms of public offerings, use of proceeds for product development, sales and marketing, additional human resources, capital expenditures, and anticipated expansion into the data center market.
On Stock Titan, AI-powered tools can help interpret lengthy Tecogen filings by summarizing complex sections, highlighting segment trends, and surfacing disclosures about items such as non-GAAP measures (for example, Adjusted EBITDA) and risk factors. Users can quickly locate information on TGEN’s reporting segments, capital structure, and material events, while real-time updates from EDGAR ensure that new 10-K, 10-Q, 8-K, S-1, and other filings are captured as they become available.
Tecogen Inc. reported that it shared new investor-oriented content about data center cooling on its website and LinkedIn. The company posted a FAQ document titled “The Future of Data Center Cooling,” explaining how Tecogen’s natural gas and hybrid chillers, and its patented hybrid drive technology, apply to evolving data center designs. The FAQ notes that data centers have multiple cooling loads beyond direct liquid chip cooling, including chilled water systems at about 12–15°C and turbine inlet cooling. It illustrates that a 250 MW data center could need 50–75 Tecogen chillers, or in a chiller‑free design, 100+ hybrid drive power packages for cooling fans. Tecogen emphasizes that rising power needs and tighter peak‑power constraints support demand for solutions that reduce peak electricity usage.
Tecogen Inc. (TGEN) reported Q3 2025 results. Revenue rose to $7,183,121 from $5,630,130 a year ago, led by Products ($2,983,795) with strong Chiller sales ($2,234,728). Gross profit was $2,183,566, but higher operating expenses drove a loss from operations of $2,100,704 and a net loss of $2,130,947 (basic and diluted EPS $(0.07)).
Nine‑month revenue reached $21,755,712 versus $16,544,014 in 2024, with a net loss of $4,254,974. Cash flow from operations was $(7,336,419) for the nine months. Balance sheet liquidity improved: cash and cash equivalents were $15,253,975, up from $5,405,233 at year‑end, aided by a July 21 follow‑on offering of 3,985,000 shares at $5.00 per share, yielding net proceeds of $18,105,100. Total liabilities declined to $16,146,907 from $20,966,721, and stockholders’ equity increased to $25,317,381.
Shares outstanding were 29,818,979 at September 30, 2025, and 29,846,479 as of November 13, 2025.
Tecogen Inc. (TGEN) filed an 8-K announcing Q3 2025 earnings materials. The company furnished a press release with earnings commentary for the three and nine months ended September 30, 2025, under Item 2.02.
It also furnished an investor presentation under Item 7.01 to accompany an earnings conference call. The materials are attached as Exhibit 99.1 (press release, dated November 12, 2025) and Exhibit 99.2 (earnings call presentation, dated November 13, 2025). The company states these exhibits are being furnished and are not deemed “filed” for purposes of Section 18, nor incorporated by reference except as expressly set forth.
Tecogen Inc. reported that on September 17, 2025 it posted a new investor presentation on its website titled “Frequently Asked Questions - Tecogen Chillers for Artificial (AI) Data Centers.” This FAQ addresses questions from stockholders, analysts, and others about how Tecogen’s chillers are intended to be used in artificial intelligence data centers.
The company also reminded investors that important information about its business and products may be shared on its website and on social media platforms such as LinkedIn and X. Some of these postings may at times contain information that is considered material and nonpublic until broadly disseminated, so the company encourages investors and analysts to review these online channels for updates.
Tecogen Inc. reported that its Audit Committee approved the early repayment of two promissory notes held by director John N. Hatsopoulos with an aggregate principal of
The October note was prepaid on
Tecogen Inc. Schedule 13G/A: Tryfon Natsis and Despoina Pantopoulou report joint beneficial ownership of 460,300 shares of Tecogen common stock, representing 1.8% of the class based on 25,269,362 shares outstanding as of May 20, 2025. The reporting persons hold shared voting and dispositive power over all 460,300 shares and have no sole voting or dispositive power. Each reporting person is a citizen of Greece and lists a residence in Abu Dhabi. The filing includes a certification that the shares were not acquired to change or influence control of the issuer.
Tecogen Inc. reported consolidated revenues of $14.57 million for the six months ended June 30, 2025, up from $10.91 million a year earlier, driven by a large increase in Products revenue to $5.69 million (prior $1.61 million) while Services remained roughly steady at $8.21 million and Energy Production declined to $0.67 million.
Gross profit rose to $5.68 million and consolidated net loss improved to $2.13 million for the six months (loss attributable to Tecogen $2.12 million, $(0.08) per share basic), compared with larger losses a year earlier. Cash and cash equivalents declined to $1.64 million from $5.41 million at year-end and operating activities used $3.78 million of cash in the first half. Acquisition-related contingent consideration and related liabilities tied to the Aegis maintenance acquisition carry a fair-value liability of about $1.25 million. Subsequent to the period, the company completed a public offering raising approximately $18.16 million net proceeds to fund growth and working capital.
Tecogen Inc. furnished earnings materials related to the three- and six-month periods ended June 30, 2025. The company issued a press release containing earnings commentary and supplemental information, and it has attached that press release as Exhibit 99.1 to this Current Report. Separately, Tecogen is furnishing an investor slide deck to be presented online in connection with an earnings conference call; that deck is attached as Exhibit 99.2.
The filing clarifies these items are being furnished (not "filed") for purposes of the Exchange Act. The 8-K itself does not include detailed financial figures; interested parties should review Exhibits 99.1 and 99.2 for the underlying earnings metrics and commentary.
Form 4 snapshot: On 07/24/2025 Tecogen Inc. (TGEN) granted Director John M. Albertine 25,000 stock options at an exercise price of $8.35. The options vest 25 % per year, first exercisable 07/24/2026 and expiring 07/24/2035.
The award lifts Albertine’s directly held derivative position to 175,000 options. No purchases or sales of common shares were reported and no change was disclosed in non-derivative share ownership. The filing, signed 07/28/2025, appears to be a routine board compensation grant with no immediate cash flow or share-count impact.
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