Transaction Details

Footnotes

Restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) shares of Common Stock for each one (1) RSU upon the vesting thereof. | Includes the purchase of 1,385 shares under the Ardelyx Employee Stock Purchase Plan on August 31, 2025. | The shares are directly held by Michael G. Raab, Trustee of the Michael G. Raab Living Trust dated July 25, 2012. | The shares are owned directly by trusts for the benefit of the Reporting Person's children. | The option becomes exercisable as it vests and the shares subject to the option vest in 48 successive, equal monthly installments on each monthly anniversary of January 23, 2026, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.