Lawrence E. Harris Sells Shares of Interactive Brokers Group, Inc.

Lawrence E. Harris, a director of Interactive Brokers Group, Inc., sold shares of the company's Class A common stock on October 27 and 28, 2025. On October 27, Harris sold 7,500 shares at a weighted average price of $69.73, reducing his holdings to 216,204 shares. The following day, he sold an additional 6,855 shares at a weighted average price of $69.15, leaving him with 209,349 shares. The transactions were disclosed in a Form 4 filing with the SEC. The prices reported are weighted averages, with the shares sold in multiple transactions at varying prices within specified ranges. Harris has committed to providing detailed information on the number of shares sold at each price within these ranges upon request.