Ardelyx (ARDX)
Commercializes IBSRELA and XPHOZAH from a gut-local NHE3 inhibition platform.
$3.59
After-hours close−0.04 (−1.21%)
At close$3.63(+3.71%)
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13F · 13D/G · Form 4
| Institutions | ≈ 71.69% | 178.64M shares | |
|---|---|---|---|
| 262 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 4.22% | 10.51M shares | |
| 22 holders · as of Aug 25, 2026 | |||
| Strategic holders | 13.84% | 34.50M shares | |
| 2 holders · as of Apr 27, 2026 | |||
| Other | ≈ 10.25% | 25.54M shares | |
| remainder | |||
249.19M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
13F, as of Jun 30, 2026
262 holders · 178.64M shares · 45 new positions · 131 increased · 88 reduced · 35 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 23.50M | 9.43% | +2.34M | Aug 7, 2026 |
| Rubric Capital Management LP | 16.20M | 6.50% | +14.34M | Aug 14, 2026 |
| Millennium Management LLC | 13.90M | 5.58% | −3.94M | Aug 14, 2026 |
| State Street Corp | 13.36M | 5.36% | −248.2K | Aug 7, 2026 |
| Vanguard Capital Management LLC | 10.47M | 4.20% | +106.0K | Aug 13, 2026 |
| Macquarie Management Holdings, Inc. | 9.55M | 3.83% | +1.38M | Aug 14, 2026 |
| Vanguard Portfolio Management LLC | 8.03M | 3.22% | +1.37M | Aug 13, 2026 |
| Geode Capital Management, LLC | 6.40M | 2.57% | +394.3K | Aug 12, 2026 |
13D/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 |
Form 4
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 |
House and Senate disclosures
Not reported.