Yalonda Howze - Apr 5, 2023 Form 4 Insider Report for Generation Bio Co. (GBIO)

Role
CHIEF LEGAL OFFICER
Signature
/s/ Benjamin Waters, Attorney-in-Fact
Stock symbol
GBIO
Transactions as of
Apr 5, 2023
Transactions value $
$0
Form type
4
Date filed
4/5/2023, 04:18 PM
Previous filing
Mar 30, 2023
Next filing
Dec 5, 2023

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 +107K $0.00 107K Apr 5, 2023 Common Stock 107K $3.97 Direct F1
transaction GBIO Restricted Stock Units Award $0 +53.6K $0.00 53.6K Apr 5, 2023 Common Stock 53.6K Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The option to purchase 107,100 shares was granted on April 5, 2023. The shares underlying the option vest over four years, with 25% of the shares vesting on April 5, 2024 and the remaining shares vesting in equal quarterly installments thereafter.
F2 Each restricted stock unit represents the right to receive one share of the company's common stock.
F3 The grant of 53,550 restricted stock units was made on April 5, 2023. The shares underlying the restricted stock units vest over four years, with 25% of the shares vesting on April 15, 2024 and the remaining shares vesting in equal quarterly installments thereafter.