Phillip Samayoa - Sep 16, 2022 Form 4 Insider Report for Generation Bio Co. (GBIO)

Signature
/s/ Benjamin Waters, Attorney-in-Fact
Stock symbol
GBIO
Transactions as of
Sep 16, 2022
Transactions value $
$0
Form type
4
Date filed
9/20/2022, 04:09 PM
Next filing
Oct 18, 2022

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction GBIO Stock Option (right to buy) Award $0 +110K $0.00 110K Sep 16, 2022 Common Stock 110K $5.53 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The option to purchase 110,000 shares was granted on September 16, 2022. The shares underlying the option vest over four years, with 25% of the shares vesting on September 16, 2023 and the remaining shares vesting in equal quarterly installments thereafter.