# Tecogen Inc.: overview TGEN · NYSE · CIK 1537435 · [Industrials](/sectors/industrials.md) · fiscal year ends Dec 31 Pages: [Overview](/companies/tgen.md) · [Financials](/companies/tgen/financials.md) · [Filings](/companies/tgen/filings.md) · [Insiders](/companies/tgen/insiders.md) Latest reported revenue: [$5.7m](/filings/0001537435-26-000066.md) for Q2 FY2026, three months to 2026-06-30, from the 10-Q filed Aug 13, 2026 (XBRL us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax, accession 0001537435-26-000066). ## Last eight quarters | Line item | Unit | Q3 FY2024 (2024-09-30) | Q4 FY2024 (2024-12-31) | Q1 FY2025 (2025-03-31) | Q2 FY2025 (2025-06-30) | Q3 FY2025 (2025-09-30) | Q4 FY2025 (2025-12-31) | Q1 FY2026 (2026-03-31) | Q2 FY2026 (2026-06-30) | | --- | --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: | | Revenue | $k | [5,630](/filings/0001537435-25-000143.md) | [6,076 d](/filings/0001537435-26-000013.md) | [7,278](/filings/0001537435-26-000038.md) | [7,295](/filings/0001537435-26-000066.md) | [7,183](/filings/0001537435-25-000143.md) | [5,318 d](/filings/0001537435-26-000013.md) | [6,336](/filings/0001537435-26-000038.md) | [5,746](/filings/0001537435-26-000066.md) | | Gross margin | % | [44.1%](/filings/0001537435-25-000143.md) | [45.0% d](/filings/0001537435-26-000013.md) | [44.3%](/filings/0001537435-26-000038.md) | [33.8%](/filings/0001537435-26-000066.md) | [30.4%](/filings/0001537435-25-000143.md) | [36.8% d](/filings/0001537435-26-000013.md) | [40.9%](/filings/0001537435-26-000038.md) | [37.8%](/filings/0001537435-26-000066.md) | | Operating margin | % | [(15.5%)](/filings/0001537435-25-000143.md) | [(18.7%) d](/filings/0001537435-26-000013.md) | [(8.2%)](/filings/0001537435-26-000038.md) | [(19.4%)](/filings/0001537435-26-000066.md) | [(29.2%)](/filings/0001537435-25-000143.md) | [(77.8%) d](/filings/0001537435-26-000013.md) | [(33.7%)](/filings/0001537435-26-000038.md) | [(37.4%)](/filings/0001537435-26-000066.md) | | Net margin | % | [(16.5%)](/filings/0001537435-25-000143.md) | [(19.5%) d](/filings/0001537435-26-000013.md) | [(9.1%)](/filings/0001537435-26-000038.md) | [(20.1%)](/filings/0001537435-26-000066.md) | [(29.7%)](/filings/0001537435-25-000143.md) | [(75.1%) d](/filings/0001537435-26-000013.md) | [(33.5%)](/filings/0001537435-26-000038.md) | [(37.4%)](/filings/0001537435-26-000066.md) | | Diluted EPS | $ per share | [(0.04)](/filings/0001537435-25-000143.md) | not reported | [(0.03)](/filings/0001537435-26-000038.md) | [(0.06)](/filings/0001537435-26-000066.md) | [(0.07)](/filings/0001537435-25-000143.md) | not reported | [(0.07)](/filings/0001537435-26-000038.md) | [(0.07)](/filings/0001537435-26-000066.md) | | Free cash flow | $k | [(490) d](/filings/0001537435-25-000143.md) | [4,047 d](/filings/0001537435-26-000013.md) | [(1,305)](/filings/0001537435-26-000038.md) | [(2,748) d](/filings/0001537435-26-000066.md) | [(3,636) d](/filings/0001537435-25-000143.md) | [(2,623) d](/filings/0001537435-26-000013.md) | [(3,154)](/filings/0001537435-26-000038.md) | [(2,427) d](/filings/0001537435-26-000066.md) | - Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure. - Gross margin (gross profit / revenue). XBRL Gross profit: us-gaap:GrossProfit; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure. - Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure. - Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure. - Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted. - Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. Derived values: 9-month figure less the 6-month figure; 12-month figure less the 9-month figure; 6-month figure less the 3-month figure. ## Last five fiscal years | Line item | Unit | FY2021 (2021-12-31) | FY2022 (2022-12-31) | FY2023 (2023-12-31) | FY2024 (2024-12-31) | FY2025 (2025-12-31) | | --- | --- | ---: | ---: | ---: | ---: | ---: | | Revenue | $m | [24.4](/filings/0001537435-23-000021.md) | [25.0](/filings/0001537435-24-000022.md) | [25.1](/filings/0001537435-25-000018.md) | [22.6](/filings/0001537435-26-000013.md) | [27.1](/filings/0001537435-26-000013.md) | | Gross margin | % | [47.5%](/filings/0001537435-23-000021.md) | [44.3%](/filings/0001537435-24-000022.md) | [40.6%](/filings/0001537435-25-000018.md) | [43.6%](/filings/0001537435-26-000013.md) | [36.3%](/filings/0001537435-26-000013.md) | | Operating margin | % | [(5.0%)](/filings/0001537435-23-000021.md) | [(9.4%)](/filings/0001537435-24-000022.md) | [(17.6%)](/filings/0001537435-25-000018.md) | [(20.0%)](/filings/0001537435-26-000013.md) | [(30.5%)](/filings/0001537435-26-000013.md) | | Net margin | % | [15.1%](/filings/0001537435-23-000021.md) | [(9.8%)](/filings/0001537435-24-000022.md) | [(18.3%)](/filings/0001537435-25-000018.md) | [(21.0%)](/filings/0001537435-26-000013.md) | [(30.5%)](/filings/0001537435-26-000013.md) | | Diluted EPS | $ per share | [0.15](/filings/0001537435-23-000021.md) | [(0.10)](/filings/0001537435-24-000022.md) | [(0.19)](/filings/0001537435-25-000018.md) | [(0.19)](/filings/0001537435-26-000013.md) | [(0.30)](/filings/0001537435-26-000013.md) | | Free cash flow | $m | [0.4](/filings/0001537435-23-000021.md) | [(1.7)](/filings/0001537435-24-000022.md) | [(0.9)](/filings/0001537435-25-000018.md) | [3.1](/filings/0001537435-26-000013.md) | [(10.3)](/filings/0001537435-26-000013.md) | - Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. - Gross margin (gross profit / revenue). XBRL Gross profit: us-gaap:GrossProfit; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. - Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. - Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. - Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted. - Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. Each value links to the filing it came from. d marks a derived value. A ratio is not reported when any input is missing. ## Insider purchases and sales The last 20 open-market transactions on Form 4 (codes P and S). Reported price is as stated on the form, not a market price. [All insider transactions](/companies/tgen/insiders.md) None in coverage. ## Funds that report holding it From each manager’s latest Form 13F, largest reported value first. Reported value is as filed: filing data, not a price. [All funds](/funds.md) | Fund | Quarter ended | Reported value | Shares | Put or call | Change on the quarter before | | --- | --- | ---: | ---: | --- | --- | | [Portolan Capital Management, LLC](/funds/1350290.md) | 2026-06-30 | $8.1m | 1,551,113 | | Added +1,107,558 | | [VANGUARD CAPITAL MANAGEMENT LLC](/funds/2100119.md) | 2026-06-30 | $4.1m | 788,670 | | Added +18,706 | | [BARD ASSOCIATES INC](/funds/1105907.md) | 2026-06-30 | $3.6m | 682,221 | | Reduced −6,088 | | [Clear Harbor Asset Management, LLC](/funds/1511857.md) | 2026-06-30 | $3.4m | 650,000 | | Unchanged | | [PEAK6 LLC](/funds/1389958.md) | 2026-06-30 | $2.5m | 471,900 | Call | New +471,900 | | [HERALD INVESTMENT MANAGEMENT Ltd](/funds/1512022.md) | 2026-06-30 | $2.2m | 420,000 | | Unchanged | | [GRATIA CAPITAL, LLC](/funds/1599793.md) | 2026-06-30 | $2.0m | 388,660 | | New +388,660 | | [UBS Group AG](/funds/1610520.md) | 2026-06-30 | $1.9m | 363,049 | | Added +43,213 | | [Meros Investment Management, LP](/funds/1911372.md) | 2026-06-30 | $1.8m | 353,487 | | Added +61,782 | | [Palisades Investment Partners, LLC](/funds/1427373.md) | 2026-06-30 | $1.7m | 323,090 | | Reduced −10,817 | ## Recent filings [All 688 filings](/companies/tgen/filings.md) | Filed | Accepted | Form | What it is | Accession | | --- | --- | --- | --- | --- | | 2026-10-14 | 16:02 ET | [8-K](/filings/0001537435-26-000092.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001537435-26-000092 | | 2026-08-31 | 21:23 ET | [8-K](/filings/0001537435-26-000072.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001537435-26-000072 | | 2026-08-31 | 21:22 ET | [S-1/A](/filings/0001537435-26-000071.md) | Registration statement, amended | 0001537435-26-000071 | | 2026-08-13 | 17:59 ET | [10-Q](/filings/0001537435-26-000066.md) | Quarterly report, period 2026-06-30 | 0001537435-26-000066 | | 2026-08-12 | 20:58 ET | [8-K](/filings/0001537435-26-000063.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001537435-26-000063 | | 2026-07-01 | 13:15 ET | [8-K](/filings/0001537435-26-000053.md) | 5.02 Departure or appointment of officers or directors | 0001537435-26-000053 | | 2026-06-05 | 20:01 ET | [8-K](/filings/0001537435-26-000040.md) | 5.07 Shareholder vote results | 0001537435-26-000040 | | 2026-05-13 | 14:46 ET | [10-Q](/filings/0001537435-26-000038.md) | Quarterly report, period 2026-03-31 | 0001537435-26-000038 | | 2026-05-12 | 21:15 ET | [8-K](/filings/0001537435-26-000036.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001537435-26-000036 | | 2026-04-21 | 14:00 ET | [DEF 14A](/filings/0001537435-26-000029.md) | Proxy statement, period 2026-04-21 | 0001537435-26-000029 | ## Latest annual report [Form 10-K for the fiscal year ended Dec 31, 2025](/filings/0001537435-26-000013.md), filed Mar 19, 2026. ## Forecast league Q3 FY2026, the quarter ended 2026-09-30, is open for forecasts until the first results filing for it is accepted by EDGAR. Results are due by \[object Promise\]. [Forecast this quarter](/leagues/2026q3/targets/01ff3708-c374-42a1-9d1e-82c8b78cf972) ## About the filer - CIK: 1537435 - Tickers: TGEN - Exchange: NYSE - SIC code: 3585 Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip - State of incorporation: DE - Filer category: Non-accelerated filer
Smaller reporting company Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 24, 2026, 15:42 ET. No prices; not investment advice.