InsiderTrades

Form 4 for TGEN TECOGEN INC.

Accepted 2025-07-28 00:00:00 ET · period of report 2025-07-24 · accession 0001537435-25-000122 · 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 2025-07-28 2025-07-24 TGEN Lafaille Stephen VP of Business Development A - Grant $0.00 +12.0K 12.4K +2,994% $0
D 2025-07-28 2025-07-24 TGEN Lafaille Stephen VP of Business Development A - Grant $8.35 +24.1K 72.9K +49% +$201.0K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-07-24 A A 11,976 $0.00 12,376 D — — (F1) Restricted Stock Award, vests 25% per year
2 Derivative Stock Option (Right to Buy) 2025-07-24 A A 24,075 $8.35 72,937 D $8.35 · 2026-07-24 to 2035-07-24 24,075 Common Stock (F2) Vests 25% per year