Antoinette Paone - Jan 15, 2023 Form 4 Insider Report for Generation Bio Co. (GBIO)

Role
CHIEF OPERATING OFFICER
Signature
/s/ Jennifer Elliott, Attorney-in-Fact
Stock symbol
GBIO
Transactions as of
Jan 15, 2023
Transactions value $
-$7,293
Form type
4
Date filed
1/18/2023, 03:50 PM
Previous filing
Jan 11, 2023
Next filing
Jan 24, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GBIO Common Stock Options Exercise +4.13K 4.13K Jan 15, 2023 Direct F1
transaction GBIO Common Stock Tax liability -$7.29K -1.43K -34.67% $5.10 2.7K Jan 15, 2023 Direct

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 Restricted Stock Units Options Exercise $0 -4.13K -20% $0.00 16.5K Jan 15, 2023 Common Stock 4.13K Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit represents the right to receive one share of the company's common stock.
F2 On January 21, 2022, the reporting person was granted 33,000 restricted stock units. The shares underlying the restricted stock units vest over two years, with 25% of the shares vested on July 15, 2022 and the remaining shares vesting in equal quarterly installments thereafter.