Antoinette Paone - Jan 26, 2023 Form 4 Insider Report for Generation Bio Co. (GBIO)

Role: CHIEF OPERATING OFFICER
Signature: /s/ Shawna-Gay White, Attorney-in-Fact
Stock symbol: GBIO
Transactions as of: Jan 26, 2023
Transactions value $: -$14,984
Form type: 4
Date filed: 1/27/2023, 03:22 PM
Previous filing: Jan 24, 2023
Next filing: Apr 18, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	GBIO	Common Stock	Sale	-$15K	-2.7K	-100%	$5.56	0	Jan 26, 2023	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 16, 2022.
F2	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.50 to $5.76, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Content

These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 16, 2022.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.50 to $5.76, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.