Insider Trading & Ownership of Aoife Brennan

Location: Cambridge, MA
Summary: The estimated net worth of Aoife Brennan is at least $2,211,527 dollars as of 08 Jan 2026. Aoife Brennan is the President and CEO, Director of Climb Bio, Inc. and owns shares of Climb Bio, Inc. (CLYM) stock worth about $2.04M. Aoife Brennan is the President and CEO, Director of SYNLOGIC, INC. and owns shares of SYNLOGIC, INC. (SYBX) stock worth about $147.6K. Aoife Brennan is the Director of FIBROGEN INC and owns shares of KYNTRA BIO, INC. (KYNB) stock worth about $21.2K.
Signature: /s/ Chandra Adams, as Attorney-in-Fact
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Ownership of Aoife Brennan

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
CLYM	Climb Bio, Inc.	President and CEO, Director	$2,042,709	-$25,154	-1.2%	06 Jan 2026
SYBX	SYNLOGIC, INC.	President and CEO, Director	$147,578			10 Nov 2023
KYNB	FIBROGEN INC	Director	$21,240			05 Jun 2024
XLO	Xilio Therapeutics, Inc.	Director				11 Jun 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.