Jason P. Rhodes - Jun 9, 2022 Form 4 Insider Report for Generation Bio Co. (GBIO)

Role: Director
Signature: /s/ Jennifer Elliott, Attorney-in-Fact
Stock symbol: GBIO
Transactions as of: Jun 9, 2022
Transactions value $: $0
Form type: 4
Date filed: 6/13/2022, 04:05 PM
Previous filing: Jun 6, 2022
Next filing: Dec 14, 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	+19.2K		$0.00	19.2K	Jun 9, 2022	Common Stock	19.2K	$6.19	Direct	F1, F2

* 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 June 9, 2022. The shares underlying the option will fully vest on the earlier of: June 9, 2023 and the date of Generation Bio's 2023 annual meeting of stockholders.
F2	The Reporting Person is a member of Atlas Venture Associates X, LLC and is obligated to transfer the economic benefit, if any, received upon the sale of the shares issuable upon exercise of the option to Atlas Venture Life Science Advisors, LLC. As such, the Reporting Person disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, except to the extent of his pecuniary interest therein, if any.

Content

This option was granted on June 9, 2022. The shares underlying the option will fully vest on the earlier of: June 9, 2023 and the date of Generation Bio's 2023 annual meeting of stockholders.

The Reporting Person is a member of Atlas Venture Associates X, LLC and is obligated to transfer the economic benefit, if any, received upon the sale of the shares issuable upon exercise of the option to Atlas Venture Life Science Advisors, LLC. As such, the Reporting Person disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, except to the extent of his pecuniary interest therein, if any.