TECOGEN (TGEN) stock: insider trades, news & valuation
Strong buyingShare price and insider trades
TECOGEN insider trading at a glance (Oct 9, 2026): in the past 12 months, 5 insiders bought $127K and 0 sold $0 of TGEN stock on the open market, including a cluster buy that began Mar 20, 2026.
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TGEN insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | — | 0 |
| Q2 2026 | $29K | 2 | — | 0 |
| Q1 2026 | $105K | 6 | — | 0 |
Valuation, profit and volume
Summary
Over the past 12 months, 5 TECOGEN INC. insiders reported open-market purchases totaling $127K, while 0 insiders reported sales totaling $0. The most recent cluster buy began on Mar 20, 2026, when 4 insiders bought a combined $98K. Among insiders with enough purchase history to measure, Earl Lewis (Director) has the highest Insider Score at 100.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Apr 27SEC | Ahmed GhoniemDirector | Buy | 12,723new position | $0.79 | $10K | +206.3% | — |
| Apr 14SEC | Susan B HirschDirector | Buy | 5,000265,416 held (+2%) | $3.73 | $19K | -35.1% | 94 |
| Mar 27SEC | Susan B HirschDirector | Buy | 10,000260,416 held (+4%) | $2.54 | $25K | -4.7% | 94 |
| Mar 27SEC | Earl LewisDirector | Buy | 5,0001,006,006 held (+0%) | $2.88 | $14K | -16.0% | 100 |
| Mar 27SEC | Earl LewisDirector | Buy | 5,0001,011,006 held (+0%) | $2.52 | $13K | -4.0% | 100 |
| Mar 23SEC | John Kimball Whiting IVGeneral Counsel | Buy | 10,00022,612 held (+79%) | $2.38 | $24K | +1.7% | — |
| Mar 23SEC | Roger P. DeschenesCao | Buy | 10,00052,962 held (+23%) | $2.23 | $22K | +8.5% | — |
| Mar 23SEC | Abinand RangeshCEO | Buy | 3,00067,193 held (+5%) | $2.30 | $7K | +5.2% | — |
Insiders at TECOGEN INC.
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Susan B HirschDirector | $44K | — | Apr 14, 2026 | 94 |
| Earl LewisDirector | $27K | — | Mar 27, 2026 | 100 |
| John Kimball Whiting IVGeneral Counsel | $24K | — | Mar 23, 2026 | — |
| Roger P. DeschenesCao | $22K | — | Mar 23, 2026 | — |
| Ahmed GhoniemDirector | $10K | — | Apr 27, 2026 | — |
| Abinand RangeshCEO | $7K | — | Mar 23, 2026 | — |
TGEN stock: common questions
Are TECOGEN INC. insiders buying TGEN stock?
In the past 12 months, 5 insiders reported open-market purchases of TGEN worth $127K. The latest was Director Ahmed Ghoniem bought $10K of TGEN at $0.79 — first open-market purchase in our records; opens a new position.
Are TECOGEN INC. insiders selling TGEN stock?
0 insiders reported sales worth $0 over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is TGEN's 52-week range?
Over the past year TGEN has traded between $2.00 and $12.07. It last closed at $2.42 on Oct 9, 2026.