Tracy Zimmermann - Jan 21, 2022 Form 4 Insider Report for Generation Bio Co. (GBIO)

Role
CHIEF DEVELOPMENT OFFICER
Signature
/s/ Jennifer Elliott, Attorney-in-Fact
Stock symbol
GBIO
Transactions as of
Jan 21, 2022
Transactions value $
$0
Form type
4
Date filed
1/25/2022, 03:05 PM
Next filing
Jul 19, 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 +119K $0.00 119K Jan 21, 2022 Common Stock 119K $6.49 Direct F1
transaction GBIO Restricted Stock Units Award $0 +59.5K $0.00 59.5K Jan 21, 2022 Common Stock 59.5K Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 This option was granted on January 21, 2022. The shares underlying the option vest over four years, with 25% of the shares vesting on January 21, 2023 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 shares underlying the restricted stock units vest over two years, with 25% of the shares vesting on July 15, 2022 and the remaining shares vesting in equal quarterly installments thereafter.