Brown Advisory Inc. Increases Stake in Andersen Group Inc. to 19.89%

On May 15, 2026, Brown Advisory Inc. filed a Schedule 13G/A disclosing a significant position in Andersen Group Inc. (ANDG). As of March 31, 2026, the firm beneficially owns 2,516,555 shares of Class A common stock, representing a 19.89% ownership stake. This filing marks a substantial increase from a previously reported 0% position, indicating a strategic accumulation of shares. Brown Advisory Inc. filed as a parent holding company on behalf of several subsidiaries, including Brown Advisory LLC, which holds the largest portion of the shares at 19.72% (2,494,652 shares). Other participating subsidiaries include Brown Investment Advisory & Trust Co, Signature Financial Management, Inc., and Brown Advisory Ltd. The filing specifies that the shares were acquired in the ordinary course of business without the intent to influence or change the control of the issuer. Brown Advisory Inc. maintains sole voting power over 2,154,479 shares and shared dispositive power over the full 2,516,555 shares reported.