According to recent filings covering the 90 days ending February 07, 2026, the three most significant insider holders at Ardelyx are Director David M Mott (2.97Mn shares), TenPercentOwner Forest Baskett (2.26Mn shares), TenPercentOwner Scott D Sandell (2.26Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| David M Mott | 2,969,585 | 23 Jun, 2025 | |
| Scott D Sandell | 2,258,850 | 27 Dec, 2021 | |
| Forest Baskett | 2,258,850 | 27 Dec, 2021 | |
| Michael Raab | President & Ceo | 1,902,968 | 26 Jan, 2026 |
| Susan Rodriguez | Chief Commercial Officer | 449,092 | 23 May, 2024 |
| David P. Rosenbaum | Chief Development Officer | 448,378 | 22 Nov, 2024 |
| Laura A Williams | Chief Patient Officer | 444,258 | 26 Jan, 2026 |
| Eric Duane Foster | Chief Commercial Officer | 436,409 | 26 Jan, 2026 |
| Richard J Rodgers | 413,543 | 23 Jun, 2025 | |
| Justin A Renz | Chief Financial Officer | 409,052 | 25 Aug, 2025 |
| Mike Kelliher | Nan | 374,261 | 26 Jan, 2026 |
| John E Bishop | Nan | 342,330 | 26 Jan, 2026 |
| Robert Blanks | Nan | 314,421 | 22 Nov, 2024 |
| Elizabeth A Grammer | Nan | 302,866 | 25 Nov, 2025 |
| William C Jr Bertrand | 290,707 | 23 Jun, 2025 | |
| James Parker Brady | Chief Human Resources Officer | 265,455 | 26 Jan, 2026 |
| Susan Hohenleitner | Chief Financial Officer | 232,566 | 26 Jan, 2026 |
| Joseph James Reilly | Nan | 156,781 | 27 Jan, 2026 |
| Onaiza Cadoret-Manier | 151,701 | 23 Jun, 2025 | |
| Jan M Lundberg | 146,794 | 16 Jun, 2023 | |
| Muna Bhanji | 137,353 | 23 Jun, 2025 | |
| Jeffrey W Jacobs | Chief Scientific Officer | 119,483 | 24 Nov, 2021 |
| Robert Ora Felsch | Nan | 91,560 | 22 Aug, 2024 |
| Merdad Parsey | 57,291 | 23 Jun, 2025 | |
| Robert B Bazemore | 41,551 | 23 Jun, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 23 Jan, 2026 | John E Bishop | Common Stock | A | 124,330 | $0.00 | 342,330 | D | A |
| 23 Jan, 2026 | Michael Raab | Common Stock | A | 446,220 | $0.00 | 1,902,968 | D | A |
| 23 Jan, 2026 | Laura A Williams | Common Stock | A | 82,695 | $0.00 | 444,258 | D | A |
| 23 Jan, 2026 | Mike Kelliher | Common Stock | A | 103,080 | $0.00 | 374,261 | D | A |
| 23 Jan, 2026 | Eric Duane Foster | Common Stock | A | 137,945 | $0.00 | 436,409 | D | A |
| 23 Jan, 2026 | Joseph James Reilly | Common Stock | A | 46,200 | $0.00 | 156,781 | D | A |
| 23 Jan, 2026 | James Parker Brady | Common Stock | A | 99,455 | $0.00 | 265,455 | D | A |
| 23 Jan, 2026 | Susan Hohenleitner | Common Stock | A | 85,670 | $0.00 | 232,566 | D | A |
| 08 Jan, 2026 | Laura A Williams | Common Stock | A | 50,000 | $0.99 | 409,896 | D | M |
| 08 Jan, 2026 | Laura A Williams | Common Stock | D | 50,000 | $6.98 | 361,563 | D | S |
| 21 Nov, 2025 | Elizabeth A Grammer | - | - | 299,895 | D | |||
| 21 Nov, 2025 | Elizabeth A Grammer | Common Stock | D | 5,995 | $5.54 | 299,895 | D | S |
| 21 Nov, 2025 | Michael Raab | Common Stock | D | 46,887 | $5.54 | 1,455,363 | D | S |
| 21 Nov, 2025 | Laura A Williams | Common Stock | D | 6,426 | $5.54 | 359,896 | D | S |
| 21 Nov, 2025 | Mike Kelliher | Common Stock | D | 5,560 | $5.54 | 271,181 | D | S |
| 21 Nov, 2025 | Eric Duane Foster | Common Stock | D | 5,814 | $5.54 | 295,684 | D | S |
| 21 Nov, 2025 | Joseph James Reilly | Common Stock | D | 11,086 | $5.54 | 108,914 | D | S |
| 26 Aug, 2025 | Laura A Williams | Common Stock | D | 50,000 | $6.12 | 396,322 | D | S |
| 26 Aug, 2025 | Laura A Williams | Common Stock | D | 30,000 | $6.12 | 366,322 | D | S |
| 26 Aug, 2025 | Laura A Williams | Common Stock | A | 50,000 | $0.99 | 446,322 | D | M |