Insider Trading & Ownership of William D. Clark

Location: Cambridge, MA
Summary: The estimated net worth of William D. Clark is at least $385,470 dollars as of 24 Nov 2025. William D. Clark is the President and CEO, Director of GENOCEA BIOSCIENCES, INC. and owns shares of GENOCEA BIOSCIENCES, INC. stock worth about $380,471. William D. Clark is the Director of iBio, Inc. and owns shares of iBio, Inc. (IBIO) stock worth about $4,999.
Signature: /s/ Marc Banjak, Attorney-in-fact
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Ownership of William D. Clark

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Report Period
GNCA	GENOCEA BIOSCIENCES, INC.	President and CEO, Director	$380,471		02 Jun 2022
IBIO	iBio, Inc.	Director	$4,999	+$4,999	20 Nov 2025
ALDX	Aldeyra Therapeutics, Inc.	Director			17 Apr 2025

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.