InsiderTrades

Whiting John Kimball IV

SEC CIK 1808199 · EDGAR

Buying vs selling by month open-market trades, last 24 months, TGEN
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
TGENTECOGEN INC.GC, Sec 42.0K $23.8K — 42025-07-242026-06-26

Most active insiders at TGEN, 12 months

#InsiderTitleBoughtSold
1 Hirsch Susan BDir $44.0K—
2 Lewis EarlDir $27.0K—
3 Whiting John Kimball IVGC, Sec $23.8K—
4 Deschenes Roger P.CFO $22.3K—
5 Ghoniem AhmedDir $10.0K—
6 Rangesh AbinandCEO, Dir, CFO $6,900—
7 Lafaille StephenVP of Business Development ——
8 Panora RobertCOO, Pres ——
9 Hatsopoulos JohnDir ——

Transactions 4

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
A 2026-09-08 17:11 2026-06-26 TGEN TECOGEN INC. Whiting John Kimball IV GC, Sec A - Grant $0.00 +19.3K 42.0K +86% $0
2026-06-30 20:36 2026-06-26 TGEN TECOGEN INC. Whiting John Kimball IV GC, Sec A - Grant — +19.3K 19.3K New —
2026-03-23 2026-03-23 TGEN TECOGEN INC. Whiting John Kimball IV GC, Sec P - Purchase $2.38 +10.0K 22.6K +79% +$23.8K
D 2025-07-28 2025-07-24 TGEN TECOGEN INC. Whiting John Kimball IV GC, Sec A - Grant $0.00 +12.0K 12.6K +1,883% $0

Purchase Sale Sale after option exercise All abbreviations