ARDELYX, INC. (ARDX) Stock
6 of the hedge funds AlphaScala tracks reported ARDX in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is Millennium Management's at $70.89M. Company insiders reported 0 open-market buys and 21 sales on SEC Form 4 in the 90 days to Oct 21, 2026.
Which hedge funds own ARDX?
From 13F filings| Fund | Shares Held | Position Value | Change vs prior Q |
|---|---|---|---|
| Millennium Management Israel Englander | 13.90M | $70.89M | -22% |
| Citadel Ken Griffin | 1.03M | $5.25M | -70% |
| Renaissance Technologies Jim Simons (founder) | 893K | $4.55M | -30% |
| Hussman Investment Trust John Hussman | 420K | $2.14M | NEW |
| Marshall Wace | 56K | $288.1K | -96% |
| D.E. Shaw David Shaw | 13K | $66.7K | -96% |
13F holdings as of Jun 30, 2026
Explore all tracked funds →Are ARDELYX, INC. insiders buying or selling?
SEC Form 4 filings| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| Aug 21, 26 | Bishop John E | See Remarks | SELL | 17.3K | $67K |
| Aug 21, 26 | Bishop John E | See Remarks | SELL | 2.5K | $10K |
| Aug 21, 26 | Raab Michael | President & CEO | SELL | 15.0K | $58K |
| Aug 21, 26 | Raab Michael | President & CEO | SELL | 16.0K | $62K |
| Aug 21, 26 | Raab Michael | President & CEO | SELL | 8.4K | $32K |
| Aug 21, 26 | Raab Michael | President & CEO | SELL | 19.2K | $74K |
| Aug 21, 26 | Williams Laura A | Chief Patient Officer | SELL | 3.5K | $13K |
| Aug 21, 26 | Williams Laura A | Chief Patient Officer | SELL | 3.1K | $12K |
| Aug 21, 26 | Williams Laura A | Chief Patient Officer | SELL | 2.4K | $9K |
| Aug 21, 26 | Williams Laura A | Chief Patient Officer | SELL | 1.7K | $7K |
SEC Form 4 filings as of Oct 21, 2026
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Powered by TradingViewWhat does ARDELYX, INC. do?
Ardelyx Inc. is a biopharmaceutical company focused on discovering, developing, and commercializing first-in-class medicines to address unmet medical needs in gastrointestinal and cardio-renal diseases. The company employs an innovative platform that identifies new biological mechanisms and pathways, enabling the creation of potent therapies designed to act locally in the gastrointestinal tract, thereby minimizing systemic side effects and drug-drug interactions common with traditional treatments. Its key products include IBSRELA (tenapanor), indicated for the treatment of irritable bowel syndrome with constipation (IBS-C) in adults, and XPHOZAH (tenapanor), used to reduce serum phosphorus in adults with chronic kidney disease on dialysis who have an inadequate response to or intolerance of phosphate binders. Ardelyx Inc. targets patients with significant unmet needs in these therapeutic areas, advancing patient care through targeted, efficacious treatments. Founded in 2007 and headquartered in Waltham, Massachusetts, Ardelyx Inc. plays a vital role in the biopharmaceutical sector by delivering novel solutions for challenging medical conditions.