-- Lawrence E Harris, Director, on April 28, 2026, sold 26,000 shares in Interactive Brokers Group (IBKR) for $2,000,180. Following the Form 4 filing with the SEC, Harris has control over a total of 173,482 Class A common shares of the company, with 173,482 shares held directly.
SEC Filing:
https://www.sec.gov/Archives/edgar/data/1381197/000138119726000086/xslF345X05/ownership.xml