Insider Trading & Ownership of Douglas A. Treco

Location: Cambridge, MA
Summary: The estimated net worth of Douglas A. Treco is at least $1,293,160 dollars as of 08 Aug 2025. Douglas A. Treco is the Director of CRISPR Therapeutics AG and owns shares of CRISPR Therapeutics AG (CRSP) stock worth about $1.25M. Douglas A. Treco is the CEO & Chairman, Director of Inozyme Pharma, Inc. and owns shares of Inozyme Pharma, Inc. (INZY) stock worth about $38.5K.
Signature: /s/ Elizabeth Ryland Waldinger, attorney-in-fact
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Ownership of Douglas A. Treco

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
CRSP	CRISPR Therapeutics AG	Director	$1,254,660	+$1,140,600	+1000%	06 Aug 2025
INZY	Inozyme Pharma, Inc.	CEO & Chairman, Director	$38,500	-$7,849	-17%	01 Jul 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.