ARDELYX, INC. 4

Ardelyx CEO Michael Raab exercised 20,834 options at $0.99 and sold 41,668 Ardelyx (ARDX) common shares around $5.06 on July 15, 2026 under a 10b5-1 plan.

On July 15, 2026, Ardelyx, Inc. President & CEO Michael Raab exercised 20,834 stock options at $0.99 per share and received an equivalent number of Ardelyx common shares, then sold 41,668 common shares at a weighted average price of $5.062 per share pursuant to a Rule 10b5-1 trading plan adopted on November 7, 2025. Following these transactions, he directly held 1,678,366 Ardelyx common shares, with additional indirect holdings of 24,364 shares in a family trust plus 1,000 shares in another family trust for his children. Using the reported sale price as a proxy, his post-transaction direct stake is valued at approximately $8.5 million, and his indirect trust holdings at roughly $0.13 million, indicating that the trades represent liquidity events but leave a substantial continuing ownership position.

Filing Facts

CIK

1437402

Ticker

ARDX

Form

4

Source Type

fda

Accession

0001321402-26-000016

Alert Tier

6