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Stocks Industrials TGEN

NYSE · Industrials

Tecogen Inc. (TGEN)

Tecogen Inc. brought in $24.6M of revenue over the twelve months to June 30, 2026, down 6.5% from a year earlier. It posted a net loss of $10.4M. In fiscal 2025 capital spending exceeded operating cash flow by $10.3M. At June 30, 2026 it held $6.8M in cash. Its latest periodic report to the SEC is the quarterly report (10-Q) filed on August 13, 2026.

Free, no password. An email when TGEN files with the SEC.

Price
$1.73
-2.25% on the day · November 10, 2026
52-week range $1.50 to $8.27
Market cap
$52.2M
Revenue (last 12 months)
$24.6M
-6.5% year on year
Net margin
-42.3%

Key facts about Tecogen Inc.

Net worth
Tecogen Inc. has a market value (market cap) of $52.2M at the latest share price, and shareholders' equity of $17.7M on its balance sheet at June 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.
Revenue and profit
In fiscal 2025 revenue was $27.1M (+19.7% year on year), with a net loss of $8.2M. Over the 12 months to June 30, 2026: revenue $24.6M, net loss $10.4M.
Cash flow
In fiscal 2025 operations used $9.9M of cash.
Latest report
The latest periodic report (quarterly report, 10-Q) was filed with the SEC on August 13, 2026 and covers the period to June 30, 2026. Open on SEC EDGAR
Next earnings report
Tecogen Inc.'s next report is expected around November 11, 2026. That is an estimate from its filing rhythm, not a date the company has announced.

What Tecogen Inc. does

Tecogen Inc. is registered with the SEC under industry code SIC 3585 (Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip). Its shares trade on NYSE under the ticker TGEN.

Revenue and profit by year

Revenue
FY18: $35.9M $35.9M FY18FY19: $33.4M $33.4M FY19FY20: $28.3M $28.3M FY20FY21: $24.4M $24.4M FY21FY22: $25M $25M FY22FY23: $25.1M $25.1M FY23FY24: $22.6M $22.6M FY24FY25: $27.1M $27.1M FY25
Net income
FY18: -$5.7M -$5.7M FY18FY19: -$4.7M -$4.7M FY19FY20: -$6.2M -$6.2M FY20FY21: $3.7M $3.7M FY21FY22: -$2.4M -$2.4M FY22FY23: -$4.6M -$4.6M FY23FY24: -$4.8M -$4.8M FY24FY25: -$8.2M -$8.2M FY25

Fiscal years as reported in annual reports. Amounts in USD.

Key figures

Fiscal yearRevenueOperating incomeNet incomeDiluted EPSFree cash flow
2025$27.1M-$8.2M-$8.2M-$0.30-$10.3M
2024$22.6M-$4.5M-$4.8M-$0.19$3.1M
2023$25.1M-$4.4M-$4.6M-$0.19-$864.7K
2022$25M-$2.3M-$2.4M-$0.10-$1.7M
2021$24.4M-$1.2M$3.7M$0.15$373.6K
2020$28.3M-$6M-$6.2M-$0.25$1.3M

Earnings: every quarter and the next report date

Full financial statements: income, balance sheet and cash flow

Next report expected around November 11, 2026.

Estimated from its filing rhythm: 52 weeks after its report of November 12, 2025. Not a date the company has announced. See the report calendar · Earnings, quarter by quarter

Where TGEN ranks in Industrials

Revenue$27.1M
#466 of 603 in Industrials · Bottom 23%
Revenue growth+19.7%
#85 of 520 in Industrials · Top 16%
Net margin-30.5%
#456 of 523 in Industrials · Bottom 13%
Free cash flow margin-38.1%
#447 of 489 in Industrials · Bottom 9%

Latest fiscal year of every company in the sector with the figure reported. Revenue is ranked among companies reporting in US dollars; growth and margins among companies with at least 10 million of revenue. Industrials

Latest SEC filings

What Tecogen Inc. has filed recently, newest first. Each links to the original document on SEC EDGAR.

  1. September 1, 2026
  2. August 31, 2026
  3. August 31, 2026
  4. August 31, 2026
  5. August 13, 2026
    Quarterly report 10-Q · period to June 30, 2026Revenue fell 21% to $5.7M versus the same quarter last year; diluted EPS -$0.07 versus -$0.06.
  6. August 12, 2026
  7. July 1, 2026
  8. June 10, 2026
  9. June 5, 2026
  10. May 13, 2026
    Quarterly report 10-Q · period to March 31, 2026Revenue fell 13% to $6.3M versus the same quarter last year; diluted EPS -$0.07 versus -$0.03.

Recent insider filings (Forms 3, 4 and 144): 10, the latest on September 8, 2026. Insider transactions on SEC

Insider trades

What the people running Tecogen Inc. did with its shares, from the Form 4 filings they must send the SEC within two business days.

No insider trades were reported in the last 90 days.

Bought (open market)
$0
last 90 days
Sold
$0
last 90 days
DateInsiderWhatSharesPriceValueFiling
June 26, 2026 Rangesh AbinandChief Executive Officer, Director Received as pay 174,081 - - Form 4
June 26, 2026 Deschenes Roger P.Chief Financial Officer Received as pay 29,013 - - Form 4
June 26, 2026 Lafaille StephenVP of Business Development Received as pay 29,013 - - Form 4
June 26, 2026 Panora RobertCOO and President Received as pay 9,671 - - Form 4
June 26, 2026 Whiting John Kimball IVGeneral Counsel & Secretary Received as pay 19,342 - - Form 4
June 26, 2026 Rangesh AbinandChief Executive Officer, Director Received as pay 174,081 - - Form 4
June 26, 2026 Panora RobertCOO and President Received as pay 9,671 - - Form 4
June 26, 2026 Deschenes Roger P.CAO Received as pay 29,013 - - Form 4

All insider filings on SEC.gov · Where insiders are buying across the market

Who owns TGEN

Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.

5% holders

Anyone who owns more than 5% of a class of shares must say so on Schedule 13D (if they may seek to influence the company) or 13G (a passive holder). The latest filing of each holder is shown: 13G filings of the last 2 years, 13D of the last 3.

HolderOf classSharesFiled
Portolan Capital Management, LLC13G, passive with 1 related filers 5.19% 1,552,232 June 10, 2026

Latest filings below 5%: Tryfon Natsis and Depoina Pantopoulou, as Joint Tenants with the Right of Survivorship 1.8% (August 14, 2025).

Largest institutional holders

Positions that investment managers reported on Form 13F for the quarter ended June 30, 2026, largest first, with the change on the quarter ended March 31, 2026. Managers file 13F up to 45 days after a quarter ends. 69 managers reported a position.

HolderSharesValueChange on quarter
Portolan Capital Management, LLC1,551,113$8.1M+1,107,558
Vanguard Capital Management LLC788,670$4.1M+18,706
Bard Associates Inc682,221$3.6M-6,088
Clear Harbor Asset Management, LLC650,000$3.4M0
HERALD INVESTMENT MANAGEMENT Ltd420,000$2.2M0
Gratia Capital, LLC388,660$2Mnew
UBS Group AG363,049$1.9M+43,213
Meros Investment Management, LP353,487$1.8M+61,782
Palisades Investment Partners, LLC323,090$1.7M-10,817
Susquehanna International Group, Llp315,831$1.6M+206,374
Morgan Stanley301,695$1.6M+224,959
Raymond James Financial Inc290,260$1.5M+104,466
BlackRock, Inc.251,464$1.3M+66,685
Citadel Advisors LLC242,276$1.3M+94,804
Huntleigh Advisors, Inc.220,074$1.1Mnew
Heartland Advisors Inc182,100$950.6Knew
Geode Capital Management, LLC180,870$944.8K-11,132
Thompson Davis & CO., Inc.144,840$755.9K+45,840
New York State Common Retirement Fund137,200$716.2K0
Arosa Capital Management LP125,000$652.5K-225,000

Insiders

Reported holdings of insiders who filed a Form 4 in the last 12 months: the shares each one held after their latest reported transaction. This is not the total held by all insiders.

9 insiders reported holding 2,806,882 shares in total, about $4.9M at the last price.

HolderSharesAs of
Hatsopoulos JohnDirector 1,038,951 March 20, 2026
Lewis EarlDirector 1,011,006 March 27, 2026
Hirsch Susan BDirector 265,416 April 13, 2026
Rangesh AbinandChief Executive Officer, Director 241,274 June 26, 2026
Deschenes Roger P.Chief Financial Officer 81,975 June 26, 2026
Panora RobertCOO and President 72,194 June 26, 2026
Whiting John Kimball IVGeneral Counsel & Secretary 41,954 June 26, 2026
Lafaille StephenVP of Business Development 41,389 June 26, 2026
Ghoniem AhmedDirector 12,723 April 24, 2026

Schedule 13D/13G filings on SEC.gov

All filings on SEC EDGAR

Questions about TGEN

What does Tecogen Inc. do?

Tecogen Inc. is a company in the Industrials sector, listed on NYSE as TGEN. Its shares trade on NYSE under the ticker TGEN.

What is Tecogen Inc.'s net worth?

Tecogen Inc. has a market value (market cap) of $52.2M at the latest share price, and shareholders' equity of $17.7M on its balance sheet at June 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.

Is Tecogen Inc. profitable?

No. Over the twelve months to June 30, 2026 it reported a net loss of $10.4M on revenue of $24.6M.

How much revenue does Tecogen Inc. make?

Over the twelve months to June 30, 2026 Tecogen Inc. reported revenue of $24.6M. That is 6.5% less than a year earlier.

When did Tecogen Inc. last report?

Its most recent periodic report is the quarterly report (10-Q) filed on August 13, 2026. It covers the period to June 30, 2026. Its newest filing of any kind is the insider trade (amended) from September 8, 2026.

When is Tecogen Inc.'s next earnings report?

Tecogen Inc.'s next report is expected around November 11, 2026. That is an estimate from its filing rhythm, not a date the company has announced.

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Where the numbers come from

Financial figures are the values Tecogen Inc. tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.

Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.