Lafaille Stephen

VP of Business DevelopmentTECOGEN INC. (TGEN) · full profile →Form 4 · filed Jun 24, 2025
Net Selling
Open-Market Buys
$1K
Open-Market Sells
$346K
Net Open-Market Flow
-$345K
Transactions
13
9 non-derivative · 4 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Jun 23, 2025Option exercise(X)10K$1.10$11K10K
Jun 23, 2025Sell(S)10K$7.25$73K400
Jun 6, 2025Option exercise(X)25K$1.10$28K25K
Jun 6, 2025Sell(S)25K$5.98$150K400
Jun 4, 2025Option exercise(X)15K$0.71$11K15K
Jun 4, 2025Sell(S)15K$5.00$75K400
Jun 3, 2025Sell(S)10K$4.88$49K400
Jun 3, 2025Option exercise(X)10K$0.71$7K10K
Mar 3, 2025Buy(P)400$2.50$1K400

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Jun 23, 2025Option exercise(X)10K$1.10$11K18K
Jun 6, 2025Option exercise(X)25K$1.10$28K28K
Jun 4, 2025Option exercise(X)15K$0.71$11K25K
Jun 3, 2025Option exercise(X)10K$0.71$7K40K

Transaction Codes

X
Exercise of in-the-money derivative
S
Open-market sale
P
Open-market purchase

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001537435-25-000064) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

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