InsiderTrades

Form 4 for TGEN TECOGEN INC.

Accepted 2025-06-24 00:00:00 ET · period of report 2025-03-03 · accession 0001537435-25-000064 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2025-06-24 2025-03-03 TGEN Lafaille Stephen VP of Business Development P - Purchase $2.50 +400 400 New +$1,000
DM 2025-06-24 2025-06-03+ TGEN Lafaille Stephen VP of Business Development X - OptEx $0.9375 +60.0K 10.4K New +$56.2K
DM 2025-06-24 2025-06-03+ TGEN Lafaille Stephen VP of Business Development S - Sale+OE $5.76 -60.0K 400 -99% -$345.8K
DM 2025-06-24 2025-06-03+ TGEN Lafaille Stephen VP of Business Development X - OptEx $0.9375 -60.0K 40.0K -60% -$56.2K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-03-03 P A 400 $2.50 400 D — —
2 Common Common Stock 2025-06-03 X A 10,000 $0.71 10,400 D — — (F1) Shares acquired pursuant to exercise of Stock Option Agreement dated 7/9/2020
3 Common Common Stock 2025-06-03 S D 10,000 $4.88 400 D — — (F2) Multiple share sales between $4.75 and $5.25 per share
4 Common Common Stock 2025-06-04 X A 15,000 $0.71 15,400 D — — (F1) Shares acquired pursuant to exercise of Stock Option Agreement dated 7/9/2020
5 Common Common Stock 2025-06-23 S D 10,000 $7.25 400 D — —
6 Common Common Stock 2025-06-06 X A 25,000 $1.10 25,400 D — — (F4) Shares acquired pursuant to stock option agreement dated 1/21/2022
7 Common Common Stock 2025-06-06 S D 25,000 $5.98 400 D — — (F5) Multiple share sales between $5.85 and $6.10
8 Common Common Stock 2025-06-23 X A 10,000 $1.10 10,400 D — — (F4) Shares acquired pursuant to stock option agreement dated 1/21/2022
9 Common Common Stock 2025-06-04 S D 15,000 $5.00 400 D — — (F3) 10,000 shares sold for $4.90 per share, and 5,000 shares sold for $5.10 per share
10 Derivative Stock Options (Right to Buy) 2025-06-06 X D 25,000 $1.10 27,500 D $1.10 · 2023-01-21 to 2032-01-21 52,500 Common Stock (F7) Vests 50% per year
11 Derivative Stock Options (Right to Buy) 2025-06-23 X D 10,000 $1.10 17,500 D $1.10 · 2023-01-21 to 2032-01-21 25,000 Common Stock (F7) Vests 50% per year
12 Derivative Stock Options (Right to Buy) 2025-06-04 X D 15,000 $0.71 25,000 D $0.71 · — to 2030-07-09 40,000 Common Stock (F6) Vests 50% upon achievement of Adjusted EBITDA goal of 2% of revenue in two consecutive quarters, and 50% upon achievement of Adjusted EBITDA goal of 3% of revenue in four consecutive quarters
13 Derivative Stock Options (Right to Buy) 2025-06-03 X D 10,000 $0.71 40,000 D $0.71 · — to 2030-07-09 50,000 Common Stock (F6) Vests 50% upon achievement of Adjusted EBITDA goal of 2% of revenue in two consecutive quarters, and 50% upon achievement of Adjusted EBITDA goal of 3% of revenue in four consecutive quarters