Tecogen Inc. (TGEN) Stock Falls on Q1 2026 Earnings

Tecogen Inc. ($TGEN) reported first-quarter 2026 results with lower revenue, reduced gross profit, and continued net losses.

Total revenue: $6.3 million (down 12.9% year-over-year).

Gross profit: $2.6 million (down 19.6% year-over-year).

Cost of sales: $3.7 million (down 7.7% year-over-year).

Operating result: loss of $2.1 million (change of +259.4% year-over-year).

Net loss attributable to common shareholders: $2.1 million (change of +221.3% year-over-year).

Balance sheet and cash flow highlights:

Cash used in operating activities: $3.1 million (change of +164.9% year-over-year).

Purchases of property, plant and equipment: $46.1 thousand (down 65.1% year-over-year).

Cash and cash equivalents: $9.3 million (up 129.5% year-over-year).

Total liabilities: $14.9 million (down 26.2% year-over-year).

Diluted earnings per share was a loss of $0.07 per share (change of +133.3% year-over-year). Shares moved by 8.49% since market close following the release.

Note: This financials data is sourced from a third-party provider and has not been independently verified by Quiver.

Tecogen Inc. Insider Trading Activity

Tecogen Inc. insiders have traded $TGEN stock on the open market 8 times in the past 6 months. Of those trades, 8 have been purchases and 0 have been sales.

Here’s a breakdown of recent trading of $TGEN stock by insiders over the last 6 months:

SUSAN B HIRSCH has made 2 purchases buying 15,000 shares for an estimated $44,050 and 0 sales.
EARL LEWIS has made 2 purchases buying 10,000 shares for an estimated $27,004 and 0 sales.
JOHN KIMBALL IV WHITING (General Counsel & Secretary) purchased 10,000 shares for an estimated $23,800
ROGER P. DESCHENES (CAO) purchased 10,000 shares for an estimated $22,300
AHMED GHONIEM purchased 12,723 shares for an estimated $10,000
ABINAND RANGESH (Chief Executive Officer) purchased 3,000 shares for an estimated $6,894

To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.

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Tecogen Inc. Hedge Fund Activity

We have seen 37 institutional investors add shares of Tecogen Inc. stock to their portfolio, and 37 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

MARSHALL WACE, LLP added 237,236 shares (+483.3%) to their portfolio in Q4 2025, for an estimated $1,171,945
INTEGRATED WEALTH CONCEPTS LLC removed 216,465 shares (-100.0%) from their portfolio in Q4 2025, for an estimated $1,069,337
UBS GROUP AG added 214,877 shares (+204.7%) to their portfolio in Q1 2026, for an estimated $550,085
CITADEL ADVISORS LLC removed 164,788 shares (-77.1%) from their portfolio in Q4 2025, for an estimated $814,052
APIS CAPITAL ADVISORS, LLC removed 153,000 shares (-100.0%) from their portfolio in Q4 2025, for an estimated $755,820
PORTOLAN CAPITAL MANAGEMENT, LLC removed 149,996 shares (-25.2%) from their portfolio in Q4 2025, for an estimated $740,980
JANE STREET GROUP, LLC added 114,497 shares (+123.0%) to their portfolio in Q4 2025, for an estimated $565,615

To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.