TGEN · AMEX
Tecogen (TGEN) Stock Price & Fundamentals
Tecogen (TGEN) closed at $589.01 on Oct 9, 2026, down 0.21% from the previous close of $590.27.
Share price, past year
1Y +9.97%Monthly closing prices
| Date | Close |
|---|---|
| Oct 9, 2026 | $589.01 |
| Sep 30, 2026 | $586.42 |
| Aug 31, 2026 | $528.67 |
| Jul 31, 2026 | $502.88 |
| Jun 30, 2026 | $503.21 |
| May 29, 2026 | $508.85 |
| Apr 30, 2026 | $517.63 |
| Mar 31, 2026 | $530.82 |
| Feb 27, 2026 | $528.39 |
| Jan 30, 2026 | $523.79 |
| Dec 31, 2025 | $521.42 |
| Nov 28, 2025 | $502.24 |
| Oct 31, 2025 | $499.43 |
Key statistics
- Market cap
- $17.78B
- P/E (TTM)
- —
- EPS (TTM)
- −$0.35
- Revenue (TTM)
- $24.58M
- Net income (TTM)
- −$10.39M
- Shares outstanding
- 30.2M
- Dividend yield
- —
- 52-week range
- $491.60 – $593.88
Tecogen's market cap is $17.78B, based on a share price of $589.01 and 30.2M shares outstanding as of Jun 30, 2026.
Financials
Tecogen reported revenue of $27.07M for fiscal 2025, up 19.69% from fiscal 2024.
Tecogen reported a net loss of $8.25M in fiscal 2025.
Annual revenue
| Fiscal year | Revenue | Growth | Net income | Net margin | EPS (diluted) | Free cash flow |
|---|---|---|---|---|---|---|
| FY2025ended Dec 31, 2025 | $27.07M | +19.7% | −$8.25M | −30.5% | −$0.30 | −$10.31M |
| FY2024ended Dec 31, 2024 | $22.62M | −10.0% | −$4.76M | −21.0% | −$0.19 | $3.09M |
| FY2023ended Dec 31, 2023 | $25.14M | +0.6% | −$4.60M | −18.3% | −$0.19 | −$864.66K |
| FY2022ended Dec 31, 2022 | $25.00M | +2.5% | −$2.45M | −9.8% | −$0.10 | −$1.67M |
| FY2021ended Dec 31, 2021 | $24.40M | −13.7% | $3.70M | 15.2% | $0.15 | $373.58K |
| FY2020ended Dec 31, 2020 | $28.25M | −15.5% | −$6.15M | −21.8% | −$0.25 | $1.35M |
| FY2019ended Dec 31, 2019 | $33.43M | −6.9% | −$4.71M | −14.1% | −$0.19 | −$4.58M |
| FY2018ended Dec 31, 2018 | $35.88M | +8.1% | −$5.71M | −15.9% | −$0.23 | −$4.69M |
| FY2017ended Dec 31, 2017 | $33.20M | +35.6% | $47.44K | 0.1% | $0.00 | −$1.17M |
| FY2016ended Dec 31, 2016 | $24.49M | — | −$1.10M | −4.5% | −$0.06 | −$2.86M |
| Quarter | Revenue | Net income | EPS (diluted) |
|---|---|---|---|
| Q2 FY2026ended Jun 30, 2026 | $5.75M | −$2.15M | −$0.07 |
| Q1 FY2026ended Mar 31, 2026 | $6.34M | −$2.12M | −$0.07 |
| Q4 FY2025ended Dec 31, 2025 | $5.32M | −$3.99M | −$0.14 |
| Q3 FY2025ended Sep 30, 2025 | $7.18M | −$2.13M | −$0.07 |
| Q2 FY2025ended Jun 30, 2025 | $7.29M | −$1.46M | −$0.06 |
| Q1 FY2025ended Mar 31, 2025 | $7.28M | −$659.92K | −$0.03 |
| Q4 FY2024ended Dec 31, 2024 | $6.08M | −$1.19M | −$0.05 |
| Q3 FY2024ended Sep 30, 2024 | $5.63M | −$930.41K | −$0.04 |
Company profile
- Name
- Tecogen Inc.
- Ticker
- TGEN
- Exchange
- AMEX
- Industry (SEC SIC)
- Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip
- Headquarters
- 76 Treble Cove Road, Bldg. 1, North Billerica, MA 01862
- Incorporated in
- DE
- Fiscal year ends
- December
- SEC CIK
- 0001537435
Recent SEC filings
- Aug 31, 2026
- Aug 13, 2026
- Aug 12, 2026
- Jul 1, 2026
- Jun 5, 2026
- May 13, 2026
- May 12, 2026
- Apr 8, 2026
Frequently asked questions
What is Tecogen's stock price?
Tecogen (TGEN) closed at $589.01 on Oct 9, 2026, down 0.21% from the previous close of $590.27.
What is Tecogen's market cap?
Tecogen's market cap is $17.78B, based on a share price of $589.01 and 30.2M shares outstanding as of Jun 30, 2026.
How much revenue does Tecogen make?
Tecogen reported revenue of $27.07M for fiscal 2025, up 19.69% from fiscal 2024.
Does Tecogen pay a dividend?
Tecogen's recent filings report no dividends declared over the last four quarters.
Sources and methodology
Fundamentals come from Tecogen Inc.'s filings with the SEC (EDGAR XBRL company facts). Fourth-quarter figures that companies don't report separately are calculated as the fiscal year minus the first three quarters. Trailing twelve-month (TTM) figures sum the latest four quarters. Prices are generated sample data for development. Last updated Oct 9, 2026. Data sources and disclosures