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Ardelyx (ARDX)
NASDAQ
$3.93+$0.03 (+0.90%)
Price as of Aug 21, 2026 7:53 PM EDT- $1.0BMarket Cap
- -36.33%1-Year Change
- BiotechnologyIndustry
Ardelyx (ARDX)
$3.93+$0.03 (+0.90%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK, INC. | 9.51% | 23.5M | +2.3M (+9.96%) | Jun 30, 2026 |
VANGUARD GROUP INC | 7.68% | 19.0M | +610,162 (+3.21%) | Dec 31, 2025 |
BLACKROCK FUNDING, INC. /DE | 7.50% | 18.5M | +694,542 (+3.75%) | Dec 31, 2024 |
BLACKROCK INC. | 7.11% | 17.6M | +456,522 (+2.60%) | Jun 30, 2024 |
RUBRIC CAPITAL MANAGEMENT LP | 6.56% | 16.2M | +14.3M (+88.51%) | Jun 30, 2026 |
MILLENNIUM MANAGEMENT LLC | 5.63% | 13.9M | -3.9M (-28.36%) | Jun 30, 2026 |
STATE STREET CORP | 5.41% | 13.4M | -248,179 (-1.86%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 4.09% | 10.1M | +295,758 (+2.93%) | Mar 31, 2026 |
SPDR SERIES TRUST | 3.10% | 7.7M | 0 (0.00%) | Apr 30, 2026 |
DELAWARE GROUP EQUITY FUNDS V | 2.54% | 6.3M | +6.3M (+100.00%) | May 29, 2026 |
MUTUAL FUND SERIES TRUST | 2.26% | 5.6M | 0 (0.00%) | Mar 31, 2026 |
TIAA-CREF FUNDS | 1.22% | 3.0M | +68,660 (+2.27%) | Apr 30, 2026 |
VANGUARD HORIZON FUNDS | 1.06% | 2.6M | -199,420 (-7.58%) | Mar 31, 2026 |
JANUS INVESTMENT FUND | 1.05% | 2.6M | -514,045 (-19.80%) | Mar 31, 2026 |
Current Ownership Distribution
- Institutions2.4B (76.79%)
- Mutual Funds642.1M (20.74%)
- Insiders76.6M (2.47%)
- Other0 (0.00%)
Insider Transactions
- 2.47% (76.6M)Current InsiderOwnership (%, shares)
- 1Number of InsiderBuying (last 12 months)
- $17.3MAmount of InsiderBuying (last 12 months)
- 8Number of InsiderSelling (last 12 months)
- $132.4MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Williams Laura A Chief Patient Officer | Exempt | Jun 18, 2026 | $0.00 | 31,000 | $0.00 | 31,000 |
Williams Laura A Chief Patient Officer | Exempt | Jun 18, 2026 | $30,690.00 | 31,000 | $0.99 | 460,093 |
Williams Laura A Chief Patient Officer | Sell | Jun 18, 2026 | $490,487.12 | 81,898 | $5.99 | 378,195 |
Parsey Merdad | Award | Jun 16, 2026 | $0.00 | 39,715 | $0.00 | 39,715 |
Bertrand William C JR | Award | Jun 16, 2026 | $0.00 | 39,715 | $0.00 | 39,715 |
Cadoret-Manier Onaiza | Award | Jun 16, 2026 | $0.00 | 39,715 | $0.00 | 39,715 |
Bertrand William C JR | Award | Jun 16, 2026 | $0.00 | 12,345 | $0.00 | 303,052 |
Bhanji Muna | Award | Jun 16, 2026 | $0.00 | 39,715 | $0.00 | 39,715 |
Bertrand William C JR | Award | Jun 16, 2026 | $0.00 | 26,455 | $0.00 | 329,507 |
Cadoret-Manier Onaiza | Award | Jun 16, 2026 | $0.00 | 26,455 | $0.00 | 178,156 |
Parsey Merdad | Award | Jun 16, 2026 | $0.00 | 26,455 | $0.00 | 83,746 |
Bhanji Muna | Award | Jun 16, 2026 | $0.00 | 26,455 | $0.00 | 163,808 |
RAAB MICHAEL President & CEO | Exempt | Jun 15, 2026 | $0.00 | 20,833 | $0.00 | 311,668 |
RAAB MICHAEL President & CEO | Exempt | Jun 15, 2026 | $20,624.67 | 20,833 | $0.99 | 1.7M |
RAAB MICHAEL President & CEO | Sell | Jun 15, 2026 | $236,346.22 | 41,666 | $5.67 | 1.7M |
RAAB MICHAEL President & CEO | Exempt | Mar 16, 2026 | $0.00 | 20,833 | $0.00 | 374,168 |
RAAB MICHAEL President & CEO | Exempt | Mar 16, 2026 | $20,624.67 | 20,833 | $0.99 | 1.9M |
RAAB MICHAEL President & CEO | Sell | Mar 16, 2026 | $243,329.44 | 41,666 | $5.84 | 1.8M |
RAAB MICHAEL President & CEO | Exempt | Feb 24, 2026 | $0.00 | 20,833 | $0.00 | 395,001 |
RAAB MICHAEL President & CEO | Exempt | Feb 24, 2026 | $20,624.67 | 20,833 | $0.99 | 1.9M |
RAAB MICHAEL President & CEO | Sell | Feb 24, 2026 | $260,620.83 | 41,666 | $6.25 | 1.8M |
RAAB MICHAEL President & CEO | Sell | Feb 20, 2026 | $236,951.86 | 40,401 | $5.87 | 1.9M |
Reilly Joseph James See Remarks | Sell | Feb 20, 2026 | $25,729.76 | 4,387 | $5.87 | 152,394 |
Bishop John E See Remarks | Sell | Feb 20, 2026 | $16,375.08 | 2,792 | $5.87 | 339,538 |
Foster Eric Duane Chief Commercial Officer | Sell | Feb 20, 2026 | $53,817.24 | 9,176 | $5.87 | 427,233 |
RAAB MICHAEL President & CEO | Sell | Feb 20, 2026 | $31,860.15 | 5,576 | $5.71 | 1.9M |
Hohenleitner Susan Chief Financial Officer | Sell | Feb 20, 2026 | $10,474.89 | 1,786 | $5.87 | 230,780 |
Bishop John E See Remarks | Sell | Feb 20, 2026 | $2,205.53 | 386 | $5.71 | 339,152 |
Foster Eric Duane Chief Commercial Officer | Sell | Feb 20, 2026 | $7,205.10 | 1,261 | $5.71 | 425,972 |
RAAB MICHAEL President & CEO | Sell | Feb 20, 2026 | $11.40 | 2 | $5.70 | 1.9M |