ARDELYX, INC. 4

Ardelyx CEO Michael Raab exercised 20,833 options at $0.99 and sold 41,666 Ardelyx (ARDX) common shares at about $5.67 on June 15, 2026 under a 10b5-1 plan.

On June 15, 2026, Ardelyx, Inc. President & CEO Michael Raab exercised 20,833 stock options at $0.99 per share, acquiring an equal number of common shares for approximately $20,625, and on the same date sold 41,666 common shares at a weighted average price of $5.6724, generating proceeds of roughly $236,340 under a Rule 10b5-1 trading plan. The Form 4 indicates that after these transactions he directly owned 1,699,200 Ardelyx common shares (excluding 24,364 shares and 1,000 shares held indirectly through family trusts for his children) plus remaining options, implying a post-transaction direct common stock position valued at about $9.6 million using the reported sale price as a proxy for market value. The option exercised was part of a long-term grant vesting monthly over 48 installments from January 6, 2022, and another identical option line on the form reflects the derivative security position and its January 6, 2032 expiration date.

Filing Facts

CIK

1437402

Ticker

ARDX

Form

4

Source Type

sec

Accession

0001321402-26-000014

Alert Tier

6