ARDELYX, INC. 4

Ardelyx Chief Business Officer Mike Kelliher automatically sold 7,758 shares of Ardelyx, Inc. common stock on 2026-08-21 to cover taxes from RSU vesting.

On August 21, 2026, Ardelyx, Inc. Chief Business Officer Mike Kelliher executed three small open-market sales of Ardelyx common stock totaling 7,758 shares at a weighted-average price of approximately $3.8569 per share, generating proceeds of roughly $29,930. According to the filing footnote, these sales were conducted automatically under a sell-to-cover arrangement tied to the vesting of restricted stock unit (RSU) awards and were made solely to satisfy applicable tax withholding obligations, rather than as discretionary share disposals. Following these routine tax-related transactions, Kelliher’s direct ownership in Ardelyx common stock decreased modestly to 349,660 shares, still representing a substantial ongoing equity stake aligned with shareholders.

Filing Facts

CIK

1437402

Ticker

ARDX

Form

4

Source Type

fda

Accession

0001987188-26-000009

Alert Tier

5