Info
Insider Ownership

Insider Trading & Ownership of Kathleen Tregoning

Location: Boston, MA
Summary: The estimated net worth of Kathleen Tregoning is at least $54,750 dollars as of 16 Jun 2025. Kathleen Tregoning is the Director of Spero Therapeutics, Inc. and owns shares of Spero Therapeutics, Inc. (SPRO) stock worth about $54.8K.
Signature: /s/ Maegan Deare, Attorney-in-Fact for Kathleen Tregoning
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Ownership of Kathleen Tregoning

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
SPRO	Spero Therapeutics, Inc.	Director	$54,750			12 Jun 2025
CERE	Cerevel Therapeutics Holdings, Inc.	Chief Corporate Affairs Officer	$0			01 Aug 2024

Insider Transactions Reported by Kathleen Tregoning:

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.