John E. Bishop, Chief Technical and Quality Officer at Ardelyx, sold 19,750 common shares on August 21 for a total of $76,173, according to a Form 4 filing disclosed on August 25.
The transaction was executed under an automatic sell-to-cover provision required by the vesting terms of an initial restricted stock unit grant, with proceeds used solely to cover applicable withholding taxes. Shares were disposed at weighted average prices between $3.648 and $3.984 per share, with a weighted average sale price of $3.8569.
The disposal follows a 35% year-to-date decline in Ardelyx stock and a 42% drop over the past six months, during which the shares fell to a 52-week low of $3.73. The company reported record second-quarter revenue of $118 million, a 31% increase from the prior-year period, but revised full-year guidance for IBSRELA and withdrew its revenue target for XPHOZAH, contributing to after-hours trading declines.
Bishop retains beneficial ownership of 317,095 shares of Ardelyx common stock following the transaction. Options trading volume reached 11,147 contracts on the day, the highest since April 2025, with put volume exceeding call volume.
