Insider Trading & Ownership of Barbara Klencke

Location: Pasadena, CA
Summary: The estimated net worth of Barbara Klencke is at least $793K dollars as of 19 Sep 2025. Barbara Klencke is the Director of TScan Therapeutics, Inc. and owns shares of TScan Therapeutics, Inc. (TCRX) stock worth about $370K. Barbara Klencke is the Director of ALX ONCOLOGY HOLDINGS INC and owns shares of ALX ONCOLOGY HOLDINGS INC (ALXO) stock worth about $216K. Barbara Klencke is the Director of Xencor Inc and owns shares of Xencor Inc (XNCR) stock worth about $207K.
Signature: /s/ Shelly Pinto, by power of attorney
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Ownership of Barbara Klencke

Symbol	Company	Relationship	Holdings Value	Report Period
TCRX	TScan Therapeutics, Inc.	Director	$370K	30 Jun 2025
ALXO	ALX ONCOLOGY HOLDINGS INC	Director	$216K	17 Sep 2025
XNCR	Xencor Inc	Director	$207K	12 Jun 2025
EFTR	eFFECTOR Therapeutics, Inc.	Director		13 Jun 2024
SRRA	Sierra Oncology, Inc.	Chief Medical Officer		01 Jul 2022

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.