Info
Insider Ownership

Insider Trading & Ownership of GEOFF MCDONOUGH

Location: Cambridge, MA
Summary: The estimated net worth of GEOFF MCDONOUGH is at least $1,066,658 dollars as of 16 Jan 2026. GEOFF MCDONOUGH is the Director of Generation Bio Co. and owns shares of Generation Bio Co. (GBIO) stock worth about $1.07M.
Signature: /s/ Shawna-Gay White, Attorney-in-Fact
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Ownership of GEOFF MCDONOUGH

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
GBIO	Generation Bio Co.	Director	$1,066,658			15 Jan 2026
SURF	Surface Oncology, Inc.	Director				08 Jun 2021
THRD	Third Harmonic Bio, Inc.	Director				27 Mar 2024

Insider Transactions Reported by GEOFF MCDONOUGH:

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

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