Form 4 Filing for ARDELYX, INC.

This filing details transactions by William C. Bertrand Jr., a director at ARDELYX, INC., on June 16, 2026. Bertrand acquired 12,345 shares of Common Stock under the Non-Employee Director Compensation Program, receiving stock in lieu of cash. Additionally, 26,455 Restricted Stock Units (RSUs) were granted under the same program, which vest over time and may accelerate under certain conditions. Bertrand also received a stock option to purchase 39,715 shares of Common Stock, with a vesting schedule tied to monthly anniversaries and acceleration on the next annual stockholder's meeting. All these transactions were made at a price of $0.00 per share, reflecting their nature as compensation. The post-transaction shares owned by Bertrand after these acquisitions are 303,052 and 329,507 for the Common Stock transactions, and 39,715 for the stock option.