<div id="readability-page-1"><div><p><span>Raab Michael Chief Executive Officer of Ardelyx Inc [ARDX] filed a Form 4 on November 25, 2025 with the Securities and Exchange Commission disclosing the following changes in ownership:</span></p><div><table><tbody><tr><td><span>Date</span></td><td><span>11/21/25</span></td></tr><tr><td><span>Transaction</span></td><td><span>Surrender(1)</span></td></tr><tr><td><span>Shares</span></td><td><span>46,887</span></td></tr><tr><td><span>Price</span></td><td><span>$5.54</span></td></tr><tr><td><span>Value</span></td><td><span>$259,609</span></td></tr></tbody></table></div><p><span>Ending Holdings: 1,480,727 (1,455,363 - Direct, 25,364 - Indirect)</span></p><ul><li><span>(1)</span></li><li><span>Surrender of shares back to company to pay option exercise cost and/or resulting tax liability.</span></li></ul><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>

ARDX

<p>CEO Raab Michael of Ardelyx Inc surrendered 46,887 shares back to the company to cover option exercise costs and/or tax liabilities, as disclosed in a Form 4 filed with the SEC. The transaction, dated November 21, 2025, was valued at $259,609, leaving Raab with 1,480,727 shares. This action is part of insider trading activities.</p>

CEO Raab Surrenders 46,887 Of Ardelyx Inc [ARDX]