Form 4: Ardelyx SVP Finance Acquires Equity, Aligns Interests

Ardelyx's Senior Vice President of Finance, Joseph J. Reilly, acquired 46,200 restricted stock units and 69,360 stock options on January 23, 2026, under a pre-planned trading arrangement.

Summary

• Joseph J. Reilly, Senior Vice President of Finance at Ardelyx, Inc. (ARDX), acquired 46,200 Restricted Stock Units (RSUs) and 69,360 stock options.
• The transactions occurred on January 23, 2026, and were made pursuant to a Rule 10b5-1(c) pre-planned contract.
• Each RSU entitles the reporting person to receive one share of Common Stock upon vesting, with a transaction price of $0.
• The stock options have an exercise price of $7.77 per share and an expiration date of January 23, 2036.
• The stock options will vest in 48 successive, equal monthly installments starting from January 23, 2026, contingent on continued employment.
• Following these transactions, Joseph J. Reilly beneficially owns 156,781 shares of Common Stock directly and 69,360 derivative securities (stock options) directly.
• The reported Common Stock beneficial ownership includes the purchase of 1,667 shares under the Ardelyx Employee Stock Purchase Plan on August 31, 2025.

Sentiment

Score: 7

Explanation: The acquisition of significant equity by a senior executive, particularly under a pre-planned arrangement, generally indicates confidence in the company's future and aligns management's interests with shareholders, which is a positive signal.

Positives

• The acquisition of 46,200 Restricted Stock Units and 69,360 stock options by a Senior Vice President of Finance demonstrates increased insider equity ownership.
• The transaction was conducted under a Rule 10b5-1(c) plan, indicating a pre-arranged, non-discretionary trading plan, which can reduce concerns about opportunistic insider trading.
• Increased insider ownership aligns management's financial interests more closely with those of shareholders, potentially signaling confidence in the company's long-term prospects.

Future Outlook

The acquired stock options will vest in 48 successive, equal monthly installments beginning January 23, 2026, subject to the reporting person's continued employment or service relationship with Ardelyx.

Stakeholder Impact

• Shareholders: Increased alignment of management's financial interests with shareholder value due to significant equity grants.
• Employees: The Employee Stock Purchase Plan (ESPP) mentioned indicates a broader program for employee equity participation.

Next Steps

• Continued vesting of 46,200 Restricted Stock Units.
• Continued vesting of 69,360 stock options in 48 successive, equal monthly installments from January 23, 2026, subject to continued employment.

Key Dates

Keywords

Ardelyx, ARDX, Form 4, Insider Transaction, Restricted Stock Units, Stock Options, Beneficial Ownership, Executive Compensation, Rule 10b5-1