<div id="readability-page-1"><div><p><span>Schremser Christopher L Officer of Waystar Holding Corp [WAY] filed a Form 4 on December 11, 2025 with the Securities and Exchange Commission disclosing the following changes in ownership:</span></p><div><table><tbody><tr><th><span>Date</span></th><th><span>Transaction</span></th><th><span>Shares</span></th><th><span>Price</span></th><th><span>Value</span></th></tr><tr><td><span>12/10/25</span></td><td><span>Planned Exercise(1)(2)</span></td><td><span>8,623</span></td><td><span>$4.14</span></td><td><span>$35,699</span></td></tr><tr><td><span>12/10/25</span></td><td><span>Planned Sale(2)</span></td><td><span>8,623</span></td><td><span>$30.41</span></td><td><span>$262,225</span></td></tr></tbody></table></div><p><span>Ending Holdings: 422,371 - Direct</span></p><div><table><tbody><tr><td><span>(1)</span></td><td><span>Exercised 1.9 years before expiration date.</span></td></tr><tr><td><span>(2)</span></td><td><span>Executed pursuant to a prearranged trading plan (10b5-1).</span></td></tr></tbody></table></div><p><span>For a free trial, or to learn more about our insider trading analysis and data services, please visit http://www.washingtonservice.com or contact us at (301) 913-5100 or send an email to info@washingtonservice.com.</span></p><p><span>Founded in 1970, The Washington Service provides securities professionals with financial, economic and public policy research and data.</span></p><span> </span></div></div>

<p>Officer Christopher L. Schremser of Waystar Holding Corp sold 8,623 shares valued at $262,225, as disclosed in a Form 4 filed with the SEC. The transaction was part of a prearranged trading plan (10b5-1). Schremser's ending holdings are 422,371 shares. The sale was executed on December 10, 2025, with shares sold at $30.41 each.</p>

Officer Schremser Sells 8,623 ($262.2K) Of Waystar Holding Corp [WAY]