Boxer Capital Management, LLC Reports New 6.67% Stake in Surrozen, Inc. (SRZN)

On May 15, 2026, Boxer Capital Management, LLC, along with affiliated entities Boxer Holdings, LP, Boxer Holdings GP, LLC, and Aaron Davis, filed a Schedule 13G disclosing a new significant ownership stake in Surrozen, Inc. (SRZN). As of the event date on March 31, 2026, the reporting persons collectively beneficially own 766,318 shares of Common Stock, representing 6.67% of the company's outstanding shares. This percentage is based on 11,486,707 shares of Common Stock outstanding as of March 19, 2026. The filing indicates that the shares were acquired in the ordinary course of business and are not held for the purpose of influencing or changing the control of the issuer. Boxer Capital Management, LLC serves as an investment adviser, while the other reporting persons are part of a control group managed by Aaron Davis. All 766,318 shares are reported as having shared voting and dispositive power among the joint filers. This position marks a new entry for the group into Surrozen, Inc., a biopharmaceutical company based in South San Francisco.