Insider Trading & Ownership of Column Group III Gp, Lp

Location: 1700 Owens Street, Suite 500, San Francisco, CA
Summary: The estimated value of insider holdings of Column Group III Gp, Lp is at least $75M dollars as of December 8, 2025. Column Group III Gp, Lp is the 10%+ Owner of Surrozen, Inc./DE and owns shares of Surrozen, Inc./DE (SRZN) stock worth about $40.5M. Column Group III Gp, Lp is the 10%+ Owner of Tenaya Therapeutics, Inc. and owns shares of Tenaya Therapeutics, Inc. (TNYA) stock worth about $34.5M.
Signature: /s/ The Column Group III GP, LP /s/ James Evangelista, Attorney-in-Fact
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Ownership of Column Group III Gp, Lp

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
SRZN, SRZNW	Surrozen, Inc./DE	10%+ Owner	$40.5M	+$16.7M	+70%	Dec 4, 2025
TNYA	Tenaya Therapeutics, Inc.	10%+ Owner	$34.5M	+$25M	+263%	Mar 5, 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.