Ardelyx Ownership | Who Owns Ardelyx?
Ardelyx Ownership Summary
Ardelyx is owned by 69.16% institutional investors, 3.22% insiders, and 27.62% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 8.78% of ARDX shares. Macquarie Small Cap Core I is the top mutual fund, with 3.57% of its assets in Ardelyx shares.
ARDX Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Ardelyx | 69.16% | 3.22% | 27.62% |
| Sector | Healthcare Stocks | 35.58% | 11.87% | 52.55% |
| Industry | Biotech Stocks | 35.75% | 11.83% | 52.41% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock funding, inc. /de | 21.16M | 8.78% | $126.77M |
| Vanguard group | 18.98M | 7.85% | $110.65M |
| Blackrock | 17.55M | 7.53% | $130.06M |
| Millennium management | 17.84M | 7.40% | $106.88M |
| State street | 13.60M | 5.64% | $81.49M |
| Janus henderson group | 8.37M | 3.47% | $50.14M |
| Macquarie management | 8.17M | 3.39% | $48.94M |
| Geode capital management | 6.01M | 2.49% | $35.99M |
| Nuveen | 5.23M | 2.17% | $31.36M |
| Two sigma investments, lp | 4.27M | 1.77% | $25.60M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Lion point capital, lp | 128.65K | 4.61% | $770.61K |
| Oracle investment management | 1.43M | 3.85% | $5.61M |
| Krensavage asset management | 500.00K | 1.17% | $3.00M |
| Clay northam wealth management | 331.96K | 1.12% | $1.99M |
| Rock springs capital management lp | 2.30M | 0.81% | $13.77M |
| Knott david m jr | 207.00K | 0.74% | $1.24M |
| Monimus capital management, lp | 443.77K | 0.74% | $2.66M |
| Sector gamma as | 516.13K | 0.73% | $3.09M |
| Eversept partners, lp | 2.23M | 0.70% | $13.35M |
| Sectoral asset management | 122.39K | 0.65% | $781.06K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Millennium management | 17.84M | 0.04% | 5.93M |
| Citadel advisors | 3.46M | 0.00% | 2.14M |
| Point72 asset management | 2.98M | 0.02% | 2.03M |
| Rubric capital management lp | 1.86M | 0.12% | 1.86M |
| State street | 13.60M | 0.00% | 1.69M |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Macquarie group | - | - | -10.46M |
| Janus henderson group | 8.37M | 0.02% | -6.14M |
| Eventide asset management | - | - | -5.60M |
| Marshall wace, llp | 1.60M | 0.01% | -3.59M |
| Two seas capital lp | - | - | -1.54M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Rubric capital management lp | 1.86M | 0.12% | 1.86M | $11.15M |
| Vanguard fiduciary trust | 1.68M | 0.00% | 1.68M | $10.05M |
| Redmile group | 733.35K | 0.29% | 733.35K | $4.39M |
| Sector gamma as | 516.13K | 0.73% | 516.13K | $3.09M |
| Krensavage asset management | 500.00K | 1.17% | 500.00K | $3.00M |
Sold Out
| Holder | Change |
|---|---|
| Skopos labs | -1.00 |
| Concord wealth partners | -8.00 |
| Zrc wealth management | -15.00 |
| Clearstead advisors | -33.00 |
| Glenmede investment management, lp | -39.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 242 | 2.54% | 166,709,305 | -0.02% | 69 | 1.46% | 147 | 28.95% | 59 | -28.92% |
| Dec 31, 2025 | 62 | -73.50% | 24,210,709 | -85.13% | 10 | 0.22% | 30 | -74.79% | 18 | -74.65% |
| Sep 30, 2025 | 77 | -63.51% | 29,911,807 | -82.16% | 12 | 0.26% | 43 | -61.26% | 21 | -65.00% |
| Jun 30, 2025 | 207 | -9.21% | 167,433,845 | 2.00% | 69 | 1.47% | 109 | -14.17% | 59 | 1.72% |
| Mar 31, 2025 | 9 | -96.02% | 12,591,977 | -91.65% | 5 | 0.13% | 8 | -93.55% | - | -100.00% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Macquarie Small Cap Core I | 8.61M | 3.57% | -646.97K |
| State Street® SPDR® S&P® Biotech ETF | 8.54M | 3.46% | -84.50K |
| Delaware Small Cap Core I | 7.32M | 3.09% | 1.68M |
| Vanguard Total Stock Mkt Idx Inv | 7.40M | 3.00% | - |
| Vanguard US Total Market Shares ETF | 7.03M | 2.95% | - |
| Nomura US Small Cap Core Equity | 6.47M | 2.62% | 6.47M |
| Nomura Small Cap Core I | 6.47M | 2.62% | -205.98K |
| iShares Russell 2000 ETF | 5.63M | 2.28% | 47.47K |
| SPDR® S&P Biotech ETF | 4.38M | 1.82% | 9.78K |
| Eventide Healthcare & Life Sciences I | 3.02M | 1.27% | -1.82M |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| May 21, 2026 | Reilly Joseph James | See Remarks | Sell | $6.49K |
| May 21, 2026 | Reilly Joseph James | See Remarks | Sell | $16.82K |
| May 21, 2026 | Hohenleitner Susan | Chief Financial Officer | Sell | $9.12K |
| May 21, 2026 | Bishop John E | See Remarks | Sell | $14.45K |
| May 21, 2026 | Brady James Parker | Chief Human Resources Officer | Sell | $11.57K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 21 |
| 2026 Q1 | 1 | 27 |
| 2025 Q4 | - | 6 |
| 2025 Q3 | - | 8 |
| 2025 Q2 | 4 | 8 |
ARDX Ownership FAQ
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