Form 4 Filing for Merdad Parsey

Merdad Parsey, a director at ARDELYX, INC., acquired 26,455 shares of Common Stock and was granted an option to purchase 39,715 shares of Common Stock on June 16, 2026. The acquisition of Common Stock was under the Issuer's Non-Employee Director Compensation Program. The stock option, also granted under the same program, has an exercise price of $5.67 and vests in monthly increments, with full acceleration on the next annual stockholder's meeting date, subject to continued service. Following these transactions, Parsey holds 83,746 shares of Common Stock directly and has options for 39,715 shares.