Ardelyx, Inc. (ARDX) Insider Ownership

Historic Insider Ownership Trends

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).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
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