Driehaus Capital Management LLC Reports 4.43% Stake in Andersen Group Inc. (ANDG)

Driehaus Capital Management LLC has filed a Schedule 13G/A with the SEC, reporting a new beneficial ownership position in Andersen Group Inc. (ANDG). As of the event date on March 31, 2026, the investment adviser holds 560,207 shares of Class A Common Stock, representing 4.43% of the company's outstanding shares. This filing marks an increase from a previously reported 0% stake, though the current ownership level has fallen below the 5% threshold typically requiring active reporting. The filing indicates that Driehaus Capital Management LLC possesses shared voting and dispositive power over all 560,207 shares. The securities were acquired in the ordinary course of business and are not held with the intent of influencing or changing the control of the issuer. The principal executive offices of Andersen Group Inc. are located in San Francisco, California, while Driehaus Capital Management operates out of Chicago, Illinois. This amendment was officially signed by Janet McWilliams, General Counsel, on May 15, 2026.