Janus Henderson Group plc Establishes 5.9% Stake in Longeveron Inc. (LGVN)

On May 15, 2026, Janus Henderson Group plc filed a Schedule 13G disclosing a new ownership position in Longeveron Inc. (LGVN). As of the event date of March 31, 2026, the filer reported beneficial ownership of 1,291,331 shares of Class A Common Stock, representing 5.9% of the company. Janus Henderson Group plc acts as the ultimate parent company for several SEC-registered investment advisers, including Janus Henderson Investors US LLC and Janus Henderson Investors UK Limited, which exercise investment and voting discretion over the shares on behalf of various managed portfolios. The filing indicates that the shares are held in the ordinary course of business and not for the purpose of influencing or changing control of the issuer. The reporting person shares both voting and dispositive power over the full 1,291,331 shares. This filing marks a significant increase from a previous ownership level of 0.0%, establishing Janus Henderson as a major institutional shareholder in the biotechnology firm.