Waystar Holding Corp. Insider Transactions and Share Distributions

On September 12, 2025, Paul G Moskowitz, a director and ten percent owner of Waystar Holding Corp., reported significant transactions involving the company's common stock. Through entities managed by Bain Capital, Moskowitz sold 4,295,139 shares at $39.21 per share, resulting in proceeds from the sale. Additionally, 516,371 shares were distributed to members or partners of the Bain Capital Entities in connection with charitable gifts. These distributed shares are subject to lock-up agreements restricting their sale until November 11, 2025, unless prior written consent is obtained from J.P. Morgan Securities LLC. Following these transactions, Moskowitz's ownership in Waystar Holding Corp. decreased to 13,243,539 shares.