Ardelyx
Commercializes IBSRELA and XPHOZAH from a gut-local NHE3 inhibition platform.
$3.84
After-hours close+0.03 (+0.75%)
At close$3.81(−0.26%)
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Breakdown13F · Form 4
Institutions 73.22%180.86M sharesInsiders 3.92%9.69M sharesOther 22.86%56.47M shares
Shares outstanding 247.03M · Float 237.16M · 96.0% free float
Institutions13F, as of Jun 30, 2026
261 holders · 180.86M shares · 45 new positions · 131 increased · 87 reduced · 35 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 23.50M | 9.51% | +2.34M | Aug 7, 2026 |
| Rubric Capital Management LP | 16.20M | 6.56% | +14.34M | Aug 14, 2026 |
| Millennium Management LLC | 13.90M | 5.63% | −3.94M | Aug 14, 2026 |
| State Street Corp | 13.36M | 5.41% | −248.2K | Aug 7, 2026 |
| Vanguard Capital Management LLC | 10.47M | 4.24% | +106.0K | Aug 13, 2026 |
| Macquarie Management Holdings, Inc. | 9.55M | 3.86% | +1.38M | Aug 14, 2026 |
| Vanguard Portfolio Management LLC | 8.03M | 3.25% | +1.37M | Aug 13, 2026 |
| Geode Capital Management, LLC | 6.40M | 2.59% | +394.3K | Aug 12, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Integrated Core Strategies (US) LLC | 7.20% | 17.72M | 13G | Apr 27, 2026 ↗ |
| Rubric Capital Management LP | 6.56% | 16.20M | 13G | Aug 14, 2026 ↗ |
| State Street Corporation | 5.50% | 13.60M | 13G | May 12, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| David M. Mott | director | 3.32M | 1.35% | Jun 18, 2026 |
| Michael Raab | director, officer: President & CEO | 1.62M | 0.66% | Aug 25, 2026 |
| Richard J. Rodgers | director | 440.0K | 0.18% | Jun 18, 2026 |
| Eric Duane Foster | officer: Chief Commercial Officer | 409.4K | 0.17% | Aug 25, 2026 |
| Justin A. Renz | officer: Chief Financial Officer | 409.1K | 0.17% | Aug 25, 2025 |
| Laura A. Williams | officer: Chief Patient Officer | 367.5K | 0.15% | Aug 25, 2026 |
| Mike Kelliher | officer: Chief Business Officer | 349.7K | 0.14% | Aug 25, 2026 |
| John E. Bishop | officer: See Remarks | 317.1K | 0.13% | Aug 25, 2026 |
| William C. JR Bertrand | director | 303.1K | 0.12% | Jun 18, 2026 |
| Edward R. Conner | officer: Chief Medical Officer | 302.3K | 0.12% | Oct 17, 2025 |
16 ten-percent owners hold 257.65M shares by Form 4, outside the officers-and-directors figure above · 16 people have not refiled in the last 18 months (7.46M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 21, 2026 | Eric Duane Fosterofficer: Chief Commercial Officer | Sale · 3 lots | 8,562 | $3.86 | 409,410 |
| Aug 21, 2026 | James Parker Bradyofficer: Chief Human Resources Officer | Sale · 2 lots | 15,136 | $3.86 | 245,930 |
| Aug 21, 2026 | John E. Bishopofficer: See Remarks | Sale · 2 lots | 19,750 | $3.86 | 317,095 |
| Aug 21, 2026 | Joseph James Reillyofficer: See Remarks | Sale · 2 lots | 3,982 | $3.86 | 145,854 |
| Aug 21, 2026 | Susan Hohenleitnerofficer: Chief Financial Officer | Sale | 1,558 | $3.86 | 227,520 |
| Aug 21, 2026 | Laura A. Williamsofficer: Chief Patient Officer | Sale · 4 lots | 10,739 | $3.86 | 367,456 |
| Aug 21, 2026 | Mike Kelliherofficer: Chief Business Officer | Sale · 3 lots | 7,758 | $3.86 | 349,660 |
| Aug 21, 2026 | Michael Raabdirector, officer: President & CEO | Sale · 4 lots | 58,574 | $3.86 | 1,619,792 |
| Jul 15, 2026 | Michael Raabdirector, officer: President & CEO | Sale | 41,668 | $5.06 | 1,678,366 |
| Jun 18, 2026 | Laura A. Williamsofficer: Chief Patient Officer | Sale | 81,898 | $5.99 | 378,195 |
CongressHouse and Senate disclosures
Not reported.