SEC Form 4 · accession 0001321402-26-000016
ARDELYX, INC. · ARDX
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Michael Raab
Officer — President & CEO · Director
Period of report
Jul 15, 2026
Accepted (ET)
Jul 17, 2026 · 4:09 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001437402
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Jul 15, 2026 | M | 20,834 | $0.99 | A | 1,720,034 | D | |
| Common StockF2 | Jul 15, 2026 | S | 41,668 | $5.062 | D | 1,678,366 | D | |
| Common StockF3 | holding | — | — | — | 24,364 | I | Family Trust | |
| Common StockF4 | holding | — | — | — | 1,000 | I | Family Trust |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option (Right to Buy)F5 | $0.99 | Jul 15, 2026 | M | 20,834 | D | — | Jan 6, 2032 | Common Stock | 20,834 | 290,834 | D |
Explanation of responses
- F1Transaction made pursuant to a 10b5-1 trading plan adopted by the Reporting Person on November 7, 2025.
- F2Transaction was executed in multiple trades in prices ranging from $5.03 to $5.12, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.
- F3The shares are directly held by Michael G. Raab, Trustee of the Michael G. Raab Living Trust dated July 25, 2012.
- F4The shares are owned directly by trusts for the benefit of the Reporting Person's children.
- F5The option becomes exercisable as it vests and the shares subject to the option vest in 48 successive, equal monthly installments on each monthly anniversary of January 6, 2022, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.