Insider · CIK 0002074096
Stephen Lafaille
officer
Files at TGEN (TECOGEN INC.). First filing Jun 24, 2025, latest Jun 24, 2025.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
1 / 1
$1,000 bought, $346k sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
TGEN: TECOGEN INC.
TGENOct 9, 2026 · close 2.42
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 31Weak | TGENbuy TECOGEN INC. | $1,000 400 shares | - | +180% from low-32% from high | |
| 50Moderate | TGENsell TECOGEN INC. | $346k 60,000 shares | -577% | +501% from low-2% from high |
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jun 26, 2026 | TGEN TECOGEN INC. | AGrant or award Common Stock | +29,013 | $0.00 | $0 | 41,389 | 34 d ago |
| Mar 3, 2025 | TGEN TECOGEN INC. | POpen-market purchase Common Stock | +400 | $2.50 | $1,000 | 400 | Jun 24, 2025 |
| Jun 3, 2025 | TGEN TECOGEN INC. | XIn-the-money exercise Common Stock | +10,000 | $0.71 | $7,100 | 10,400 | Jun 24, 2025 |
| Jun 3, 2025 | TGEN TECOGEN INC. | SOpen-market sale Common Stock | -10,000 | $4.88 | $49k | 400 | Jun 24, 2025 |
| Jun 4, 2025 | TGEN TECOGEN INC. | XIn-the-money exercise Common Stock | +15,000 | $0.71 | $11k | 15,400 | Jun 24, 2025 |
| Jun 4, 2025 | TGEN TECOGEN INC. | SOpen-market sale Common Stock | -15,000 | $5.00 | $75k | 400 | Jun 24, 2025 |
| Jun 6, 2025 | TGEN TECOGEN INC. | XIn-the-money exercise Common Stock | +25,000 | $1.10 | $28k | 25,400 | Jun 24, 2025 |
| Jun 6, 2025 | TGEN TECOGEN INC. | SOpen-market sale Common Stock | -25,000 | $5.98 | $150k | 400 | Jun 24, 2025 |
| Jun 23, 2025 | TGEN TECOGEN INC. | XIn-the-money exercise Common Stock | +10,000 | $1.10 | $11k | 10,400 | Jun 24, 2025 |
| Jun 23, 2025 | TGEN TECOGEN INC. | SOpen-market sale Common Stock | -10,000 | $7.25 | $73k | 400 | Jun 24, 2025 |
| Jun 3, 2025 | TGEN TECOGEN INC. | XIn-the-money exercise Stock Options (Right to Buy)derivative | -10,000 | $0.71 | $7,100 | 40,000 | Jun 24, 2025 |
| Jun 4, 2025 | TGEN TECOGEN INC. | XIn-the-money exercise Stock Options (Right to Buy)derivative | -15,000 | $0.71 | $11k | 25,000 | Jun 24, 2025 |
| Jun 6, 2025 | TGEN TECOGEN INC. | XIn-the-money exercise Stock Options (Right to Buy)derivative | -25,000 | $1.10 | $28k | 27,500 | Jun 24, 2025 |
| Jun 23, 2025 | TGEN TECOGEN INC. | XIn-the-money exercise Stock Options (Right to Buy)derivative | -10,000 | $1.10 | $11k | 17,500 | Jun 24, 2025 |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.