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Tecogen Inc. (TGEN)

Tecogen Inc. at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Tecogen Inc. (TGEN) is a Electrical Equipment & Parts company based in US with a market capitalization of $187.4M. Revenue grew 19.7% year-over-year and free cash flow was negative at -$10.3M. This page tracks TGEN's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 91 employees · IPO May 20, 2014

Valuation

Valuation & price

$6.52 · as of May 17, 2026 · -46.0% vs 52w high

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P/E ratio

Latest-FY diluted EPS

8.66

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$10.36$6.27$2.18Jul 25Dec 25Jul 26Jul 7, 25$7.95Jul 9, 25$8.73Jul 11, 25$7.93Jul 15, 25$6.32Jul 17, 25$5.78Jul 21, 25$7.10Jul 23, 25$8.39Jul 25, 25$8.50Jul 29, 25$7.43Jul 31, 25$9.68Aug 4, 25$9.10Aug 6, 25$9.19Aug 11, 25$9.02Aug 13, 25$8.61Aug 15, 25$8.29Aug 19, 25$8.56Aug 21, 25$8.49Aug 25, 25$8.63Aug 27, 25$7.89Aug 29, 25$7.64Sep 3, 25$7.02Sep 5, 25$7.04Sep 9, 25$6.63Sep 11, 25$7.09Sep 16, 25$7.01Sep 18, 25$7.29Sep 22, 25$9.06Sep 24, 25$8.55Sep 26, 25$7.85Sep 30, 25$8.81Oct 2, 25$9.10Oct 6, 25$9.80Oct 8, 25$8.91Oct 10, 25$7.94Oct 14, 25$9.53Oct 16, 25$10.36Oct 21, 25$8.89Oct 23, 25$8.46Oct 27, 25$8.66Oct 29, 25$9.48Oct 31, 25$9.98Nov 4, 25$9.35Nov 6, 25$8.16Nov 10, 25$8.16Nov 12, 25$7.38Nov 14, 25$6.51Nov 18, 25$6.34Nov 20, 25$6.22Nov 25, 25$6.88Nov 28, 25$7.46Dec 2, 25$6.44Dec 4, 25$7.30Dec 8, 25$6.85Dec 10, 25$6.56Dec 12, 25$6.03Dec 16, 25$5.34Dec 18, 25$4.70Dec 22, 25$5.11Dec 24, 25$5.33Dec 29, 25$5.09Jan 2, 26$5.34Jan 6, 26$4.41Jan 8, 26$5.03Jan 12, 26$4.74Jan 14, 26$4.96Jan 16, 26$5.09Jan 21, 26$4.60Jan 23, 26$4.34Jan 27, 26$4.25Jan 29, 26$4.14Feb 2, 26$3.77Feb 4, 26$3.60Feb 9, 26$3.89Feb 11, 26$3.90Feb 13, 26$3.81Feb 18, 26$3.52Feb 20, 26$3.54Feb 24, 26$3.68Feb 26, 26$3.87Mar 2, 26$3.45Mar 4, 26$3.30Mar 6, 26$2.98Mar 10, 26$2.81Mar 12, 26$2.71Mar 17, 26$2.84Mar 19, 26$2.18Mar 23, 26$2.36Mar 25, 26$2.89Mar 27, 26$2.57Mar 31, 26$2.56Apr 2, 26$2.92Apr 7, 26$2.62Apr 9, 26$3.09Apr 13, 26$3.63Apr 15, 26$3.92Apr 17, 26$4.30Apr 22, 26$4.32Apr 24, 26$4.29Apr 28, 26$4.20Apr 30, 26$4.78May 4, 26$4.92May 6, 26$5.35May 8, 26$4.63May 12, 26$4.23May 14, 26$6.22May 18, 26$6.35May 20, 26$5.30May 22, 26$5.74May 28, 26$6.37Jun 1, 26$6.86Jun 3, 26$6.82Jun 5, 26$5.74Jun 9, 26$5.67Jun 11, 26$5.71Jun 15, 26$5.68Jun 17, 26$5.78Jun 22, 26$6.05Jun 24, 26$5.38Jun 26, 26$5.17Jul 2, 26$4.52
$2.0052-week range$12.07
Loading valuation history…

Fundamentals

Key fundamentals

$187.4M

Market cap

19.7%

Revenue growth (YoY)

36.3%

Gross margin

-$10.3M

Free cash flow (USD)

-$9.6M

Net debt

Net cash position

9.6%

Share dilution

1/5

Graham criteria passed

Defensive-investor screen

Industrials

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$24.5MFY 2017$33.2MFY 2018$35.9MFY 2019$33.4MFY 2020$28.3MFY 2021$24.4MFY 2022$25.0MFY 2023$25.1MFY 2024$22.6MFY 2025$27.1M
$24.5M$27.1M

Free cash flow by year

2016 → 2025

FY 2016$-3.0MFY 2017$-1.6MFY 2018$-4.9MFY 2019$-4.7MFY 2020$1.2MFY 2021$310.5KFY 2022$-1.7MFY 2023$-864.7KFY 2024$3.1MFY 2025$-10.3M
-$3M-$10.3M

Gross margin by year

2021 → 2025

FY 202147.5%FY 202244.3%FY 202340.6%FY 202443.6%FY 202536.3%
47.5%36.3%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

2

Insider buys · 90 days

0

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 13, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventExecutive Compensation ChangesJul 1, 2026Filing
  • 8-K eventAnnual Meeting ResultsJun 5, 2026Filing
  • Quarterly report10-Q FiledMay 13, 2026Filing
  • 8-K eventEarnings ReleaseMay 12, 2026Filing
  • Insider buyInsider Buy $10KGhoniem Ahmed · Director · $10KApr 27, 2026Filing
  • Insider buyInsider Buy $19KHirsch Susan B · Director · $18.7KApr 14, 2026Filing
  • 8-K eventAdvisory Agreement ExtensionApr 8, 2026Filing

Questions

Frequently asked questions

What is Tecogen Inc.'s market cap?

Tecogen Inc. (TGEN) has a market capitalization of $187.4M.

What is TGEN's P/E ratio?

A meaningful P/E ratio is not available for TGEN — the company's latest fiscal-year earnings per share is zero, negative, or not yet cached.

What is TGEN's price-to-book (P/B) ratio?

TGEN trades at 8.66 times book value per share.

Are insiders buying TGEN stock?

Yes — SEC Form 4 filings show 2 open-market insider buys and 0 sells at Tecogen Inc. in the last 90 days.

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

Search the actual 10-K / 10-Q text with AI research angles

News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.