Every Form 4 that Ardelyx, Inc. (ARDX) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow ARDX and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full ARDX filings page.
Ardelyx, Inc. (ARDX) reported an insider equity transaction by its Chief Business Officer, Mike Kelliher. On 11/21/2025, he sold 5,560 shares of common stock at a price of $5.5369 per share. The company states these shares were sold automatically upon the vesting of restricted stock units to cover applicable withholding taxes, rather than as a discretionary sale.
Following this transaction, Kelliher directly beneficially owns 271,181 shares of Ardelyx common stock. The filing is a Form 4 submitted for one reporting person and reflects a routine tax-related sale connected to equity compensation.
Ardelyx, Inc. (ARDX) reported an insider share sale by its Chief Patient Officer, Laura A. Williams. On 11/21/2025, Williams sold 6,426 shares of Ardelyx common stock at a price of $5.5369 per share. The filing explains that this was a sell-to-cover transaction imposed by the terms of the original restricted stock unit ("RSU") awards and that the shares were sold solely to cover applicable withholding taxes when the RSUs vested.
Following this tax-related sale, Williams beneficially owned 359,896 shares of Ardelyx common stock, held in direct ownership. The transaction was reported on a Form 4 filed for a single reporting person.
Ardelyx, Inc. (ARDX) reported a Form 4 filing for its Chief Commercial Officer, who is an officer but not a 10% owner. On 11/21/2025, the officer sold 5,814 shares of Ardelyx common stock at a price of $5.5369 per share. According to the explanation, the sale was an automatic sell-to-cover triggered by the vesting of restricted stock units, with shares sold solely to cover withholding taxes. Following this transaction, the officer directly beneficially owns 295,684 shares of Ardelyx common stock.
Ardelyx, Inc. (ARDX) reported an insider equity transaction by Senior Vice President of Finance Joseph J. Reilly. On 11/21/2025, he sold 11,086 shares of common stock at an average price of $5.5369 per share. Following this transaction, he beneficially owned 108,914 shares directly.
The sale was executed pursuant to an automatic sell-to-cover feature tied to previously granted restricted stock units. When the RSUs vested, a portion of the resulting shares was automatically sold to cover applicable withholding taxes, rather than as a discretionary sale of shares.