ARDX insider buying – Ardelyx, Inc.
21 insider purchases since 2016 worth $81.9M by 5 different insiders. Last 12 months: 1 purchases, $1.9M. Most recent filing: 2026-02-23.
Mid company Public float $924M (latest 10-K, SEC).
Same time range as the chart above - each mark sits under the week of the trade. Circles = purchases (height = price paid, size = amount), red triangles = open-market sales of $50k+. Prices as reported, not adjusted for later stock splits. 11 older purchases (before the 5-year window) are listed in the table below.
Purchases are open-market buys (SEC Form 4, code "P") - insiders paying with their own money. Sales are open-market sales (code "S") of $50,000 or more; many sales are pre-planned (Rule 10b5-1) or made for taxes and diversification. Each row links to the original filing.
Bought, sold, still holding?
| Insider | Bought | First / last buy | Sold since 2016 | Holds now* | Status |
|---|---|---|---|---|---|
| BARRIS PETER J 10% Owner | $35.0M 2× · 3,790,951 sh | 2016-01-13 2016-07-18 | – | 16,134,026 shares as of 2019-12-09 | Holds - never sold |
| NEA 15 GP, LLC 10% Owner | $23.3M 2× · 2,527,301 sh | 2016-01-13 2016-07-18 | – | 6,564,372 shares as of 2019-12-09 | Holds - never sold |
| MOTT DAVID M Director | $11.7M 13× · 2,803,251 sh | 2020-06-22 2026-02-20 | – | 3,323,200 shares as of 2026-06-18 | Holds - never sold |
| New Enterprise Associates 12, Limited Partnership 10% Owner | $11.7M 2× · 1,263,650 sh | 2016-01-13 2016-07-18 | – | 8,086,401 shares as of 2020-06-12 | Holds - never sold |
| RINGOLD GORDON Director | $156,550 2× · 25,000 sh | 2016-03-21 2018-05-30 | – | 35,000 shares as of 2018-06-01 | Holds - never sold |
* Shares held after the insider's most recent SEC filing for this company (all share classes, direct and indirect). If an insider stops filing, later changes are not known.
Insider buying and selling by year
| Year | Purchases | Bought | Buyers | Sales | Sold |
|---|---|---|---|---|---|
| 2026 | 1 | $1.9M | 1 | 16 | $3.5M |
| 2025 | 6 | $4.8M | 1 | 13 | $2.6M |
| 2024 | 2 | $2.0M | 1 | 32 | $10.8M |
| 2023 | 0 | – | – | 7 | $2.1M |
| 2022 | 1 | $997,920 | 1 | 2 | $217,334 |
| 2021 | 0 | – | – | 3 | $3.8M |
| 2020 | 3 | $2.0M | 1 | 15 | $4.2M |
| 2019 | 0 | – | – | 1 | $91,200 |
| 2018 | 1 | $40,000 | 1 | – | – |
| 2017 | 0 | – | – | 2 | $131,426 |
| 2016 | 7 | $70.1M | 4 | 4 | $278,139 |
Insider purchases
| Filed | Insider | Role | Shares | Avg price | Value | Holdings | Filing |
|---|---|---|---|---|---|---|---|
| 2026-02-23 | MOTT DAVID M | Director | 333,333 | $5.84 | $1.9M | +11.2% | SEC |
| 2025-06-18 | MOTT DAVID M | Director | 200,000 | $3.63 | $726,000 | +7.4% | SEC |
| 2025-06-11 | MOTT DAVID M | Director | 200,000 | $3.69 | $738,000 | +8.0% | SEC |
| 2025-05-19 | MOTT DAVID M | Director | 100,000 | $3.29 | $329,000 | +4.2% | SEC |
| 2025-05-05 | MOTT DAVID M | Director | 381,377 | $4.22 | $1.6M | +18.9% | SEC |
| 2025-02-26 | MOTT DAVID M | Director | 77,729 | $5.00 | $388,645 | +4.0% | SEC |
| 2025-01-22 | MOTT DAVID M | Director | 199,000 | $4.99 | $993,010 | +11.4% | SEC |
| 2024-12-23 | MOTT DAVID M | Director | 213,300 | $4.67 | $996,111 | +15.0% | SEC |
| 2024-11-14 | MOTT DAVID M | Director | 215,868 | $4.62 | $997,310 | +17.8% | SEC |
| 2022-11-17 | MOTT DAVID M | Director | 567,000 | $1.76 | $997,920 | +94.5% | SEC |
| 2020-12-10 | MOTT DAVID M | Director | 170,000 | $5.89 | $1.0M | +68.7% | SEC |
| 2020-06-26 | MOTT DAVID M | Director | 140,971 | $6.85 | $965,913 | +132.6% | SEC |
| 2020-06-24 | MOTT DAVID M | Director | 4,673 | $6.75 | $31,543 | +4.6% | SEC |
| 2018-06-01 | RINGOLD GORDON | Director | 10,000 | $4.00 | $40,000 | +66.7% | SEC |
| 2016-07-20 | New Enterprise Associates 12, Limited Partnership | 10% Owner | 763,650 | $8.73 | $6.7M | +9.6% | SEC |
| 2016-07-20 | NEA 15 GP, LLC | 10% Owner | 1,527,301 | $8.73 | $13.3M | +134.2% | SEC |
| 2016-07-20 | BARRIS PETER J | 10% Owner | 2,290,951 | $8.73 | $20.0M | +35.5% | SEC |
| 2016-03-21 | RINGOLD GORDON | Director | 15,000 | $7.77 | $116,550 | SEC | |
| 2016-01-14 | New Enterprise Associates 12, Limited Partnership | 10% Owner | 500,000 | $10.00 | $5.0M | +6.7% | SEC |
| 2016-01-14 | NEA 15 GP, LLC | 10% Owner | 1,000,000 | $10.00 | $10.0M | +110.9% | SEC |
| 2016-01-14 | BARRIS PETER J | 10% Owner | 1,500,000 | $10.00 | $15.0M | +23.1% | SEC |
Insider sales
| Filed | Insider | Role | Shares | Avg price | Value | Type | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-25 | RAAB MICHAEL | CEO | 58,574 | $3.86 | $226,096 | Sale | SEC |
| 2026-08-25 | Brady James Parker | Officer | 15,136 | $3.86 | $58,425 | Sale | SEC |
| 2026-08-25 | Bishop John E | Officer | 19,750 | $3.86 | $76,235 | Sale | SEC |
| 2026-07-17 | RAAB MICHAEL | CEO | 41,668 | $5.06 | $210,840 | Pre-planned (10b5-1) | SEC |
| 2026-06-22 | Williams Laura A | Officer | 81,898 | $5.99 | $490,569 | Pre-planned (10b5-1) | SEC |
| 2026-06-17 | RAAB MICHAEL | CEO | 41,666 | $5.67 | $236,246 | Pre-planned (10b5-1) | SEC |
| 2026-05-22 | RAAB MICHAEL | CEO | 54,748 | $6.27 | $343,270 | Sale | SEC |
| 2026-05-22 | Foster Eric Duane | Officer | 7,998 | $6.27 | $50,147 | Sale | SEC |
| 2026-05-19 | RAAB MICHAEL | CEO | 41,666 | $6.28 | $261,662 | Pre-planned (10b5-1) | SEC |
| 2026-04-17 | RAAB MICHAEL | CEO | 41,668 | $6.29 | $262,092 | Pre-planned (10b5-1) | SEC |
| 2026-03-18 | RAAB MICHAEL | CEO | 41,666 | $5.84 | $243,329 | Pre-planned (10b5-1) | SEC |
| 2026-02-25 | RAAB MICHAEL | CEO | 41,666 | $6.26 | $260,829 | Sale | SEC |
| 2026-02-23 | RAAB MICHAEL | CEO | 45,982 | $5.85 | $269,021 | Sale | SEC |
| 2026-02-23 | Kelliher Mike | Officer | 9,595 | $5.85 | $56,137 | Sale | SEC |
| 2026-02-23 | Foster Eric Duane | Officer | 10,439 | $5.85 | $61,075 | Sale | SEC |
Showing the latest 15 of 95 sales of $50,000+ since 2016.
Recent company events (SEC 8-K)
- 2026-11-03 - Quarterly results released (SEC)
Compiled automatically from public SEC filings. Not investment advice. Get every new insider purchase in the daily report.
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