Ardelyx, Inc. (ARDX) ownership: insiders 4% · institutions 65% · index and ETF funds 5% (13F 2026-03-31). Insider activity, 90 days: Routine (3 sales, 0 open-market buys). SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| BlackRock | 21164132.00 | $126.77M | 8.5% | 2026-03-31 |
| Vanguard | 19056635.00 | $114.15M | 7.6% | 2026-03-31 |
| Millennium Management | 17842370.00 | $106.88M | 7.2% | 2026-03-31 |
| State Street | 13604307.00 | $81.49M | 5.5% | 2026-03-31 |
| Janus Henderson | 8371234.00 | $50.14M | 3.4% | 2026-03-31 |
| Nomura | 8169369.00 | $48.94M | 3.3% | 2026-03-31 |
| Geode Capital Management | 6007455.00 | $35.99M | 2.4% | 2026-03-31 |
| Nuveen (TIAA) | 5234683.00 | $31.36M | 2.1% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-07-15 | |
| Sell | null | 2026-07-15 | |
| Sell | null | 2026-07-15 | |
| Sell | null | 2026-06-18 | |
| Sell | null | 2026-06-18 | |
| Sell | null | 2026-06-18 | |
| Sell | null | 2026-06-16 | |
| Sell | null | 2026-06-16 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.