Form 4 Filing for Andersen Group Inc.

Robert V. Gunderson Jr., a director at Andersen Group Inc., acquired 12,633 shares of Class A Common Stock on December 18, 2025. The shares were purchased at a price of $16.0 per share through a directed share program associated with the company's initial public offering. Following this transaction, Mr. Gunderson directly owns 12,633 shares of Class A Common Stock. The filing was signed by William Deckelman as Attorney-in-Fact on December 22, 2025.