Insider Sale: Chief Commercial Officer of $ARDX Sells 2,598 Shares

By: Quiver InsiderRadar, Automated

Posted: 1 day, 17 hours ago / Aug. 25, 2026 11:16 p.m. UTC

Eric Duane Foster, the Chief Commercial Officer of $ARDX, sold 2,598 shares of the company on 08-21-2026 for an estimated $10,020. We received data on the trade from a recent SEC filing. This was a sale of approximately 0.6% of their shares of this class of stock. Following this trade, they now own 415,374 shares of this class of $ARDX stock.

$ARDX Insider Trading Activity

$ARDX insiders have traded $ARDX stock on the open market 38 times in the past 6 months. Of those trades, 0 have been purchases and 38 have been sales.

Here’s a breakdown of recent trading of $ARDX stock by insiders over the last 6 months:

• MICHAEL RAAB (President & CEO) has made 0 purchases and 12 sales selling 279,990 shares for an estimated $1,545,875.
• LAURA A WILLIAMS (Chief Patient Officer) has made 0 purchases and 9 sales selling 99,626 shares for an estimated $575,709.
• ERIC DUANE FOSTER (Chief Commercial Officer) has made 0 purchases and 6 sales selling 16,560 shares for an estimated $83,150.
• MIKE KELLIHER (Chief Business Officer) has made 0 purchases and 6 sales selling 15,006 shares for an estimated $75,348.
• JOSEPH JAMES REILLY (See Remarks) has made 0 purchases and 2 sales selling 3,719 shares for an estimated $23,308.
• JOHN E BISHOP (See Remarks) sold 2,306 shares for an estimated $14,452
• JAMES PARKER BRADY (Chief Human Resources Officer) sold 1,846 shares for an estimated $11,569
• SUSAN HOHENLEITNER (Chief Financial Officer) sold 1,455 shares for an estimated $9,119

To track insider transactions, check out Quiver Quantitative’s insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.

$ARDX Hedge Fund Activity

We have seen 137 institutional investors add shares of $ARDX stock to their portfolio, and 133 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

• RUBRIC CAPITAL MANAGEMENT LP added 14,341,804 shares (+770.7%) to their portfolio in Q2 2026, for an estimated $73,143,200
• MILLENNIUM MANAGEMENT LLC removed 3,941,597 shares (-22.1%) from their portfolio in Q2 2026, for an estimated $20,102,144
• AIGH CAPITAL MANAGEMENT LLC added 3,200,000 shares (+inf%) to their portfolio in Q2 2026, for an estimated $16,319,999
• POINT72 ASSET MANAGEMENT, L.P. removed 2,984,261 shares (-100.0%) from their portfolio in Q2 2026, for an estimated $15,219,731
• CITADEL ADVISORS LLC removed 2,434,600 shares (-70.3%) from their portfolio in Q2 2026, for an estimated $12,416,460
• BLACKROCK, INC. added 2,340,498 shares (+11.1%) to their portfolio in Q2 2026, for an estimated $11,936,539
• SIXTH STREET PARTNERS MANAGEMENT COMPANY, L.P. added 2,211,760 shares (+inf%) to their portfolio in Q2 2026, for an estimated $11,279,976

To track hedge funds’ stock portfolios, check out Quiver Quantitative’s institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.

This article is not financial advice. See Quiver Quantitative’s disclaimers for more information.