Filing Details
- Accession Number:
- 0001321402-26-000016
- Form Type:
- 4
- Zero Holdings:
- No
- Publication Time:
- 2026-07-17 16:09:07
- Reporting Period:
- 2026-07-15
- Filing Date:
- 2026-07-17
- Accepted Time:
- 2026-07-17 16:09:07
- SEC Url:
- Form 4 Filing
- 10b5-1 trading plan:
- Yes
The filer marked this filing as including a trade under a Rule 10b5-1 trading arrangement.
A 10b5-1 plan sets trading instructions in advance, so trades follow those instructions instead of a new decision at the time of each trade. The checkbox applies to the filing as a whole and does not identify every covered trade; see the footnotes for details. It reflects the filer's disclosure, not SEC approval of the plan. SEC Form 4 instructions.
Issuer
| Cik | Name | Symbol | Sector (SIC) | IRS No |
|---|---|---|---|---|
| 1437402 | Ardelyx Inc. | ARDX | () | 4 |
Insiders
| Cik | Name | Reported Address | Insider Title | Director | Officer | Large Shareholder | Other |
|---|---|---|---|---|---|---|---|
| 1321402 | Michael Raab | C/O Ardelyx, Inc. 400 Fifth Avenue, Suite 210 Waltham MA 02451 | President & Ceo | Yes | Yes | No | No |
Transaction Summary
| Sold: | 41,668 shares | Avg. Price: $5.06 | Total Value: $210,923.42 |
| Number of Shares After Transactions: | 1,678,366 shares | ||
Reported Non-Derivative Transactions
| Sec. Name | Acquisiton - Disposition | Date | Amount | Price | Remaning Holdings | Equity Swap Involved | Form Type | Code | Nature of Ownership | Explanation |
|---|---|---|---|---|---|---|---|---|---|---|
| Common Stock | Acquisiton | 2026-07-15 | 20,834 | $0.99 | 1,720,034 | No | 4 | M | Direct | |
| Common Stock | Disposition | 2026-07-15 | 41,668 | $5.06 | 1,678,366 | No | 4 | S | Direct |
| Equity Swap Involved | Form Type | Code | Nature of Ownership | Explanation |
|---|---|---|---|---|
| No | 4 | M | Direct | |
| No | 4 | S | Direct |
Reported Derivative Transactions
| Sec. Name | Sec. Type | Acquisiton - Disposition | Date | Amount | Price | Amount - 2 | Price - 2 |
|---|---|---|---|---|---|---|---|
| Common Stock | Stock Option (Right to Buy) | Disposition | 2026-07-15 | 20,834 | $0.00 | 20,834 | $0.99 |
| Remaning Holdings | Exercise Date | Expiration Date | Equity Swap Involved | Transaction Form Type | Transaction Code | Nature of Ownership |
|---|---|---|---|---|---|---|
| 290,834 | 2032-01-06 | No | 4 | M | Direct |
Reported Non-Derivative Holdings
| Sec. Name | Remaning Holdings | Nature of Ownership | Explanation |
|---|---|---|---|
| Common Stock | 24,364 | Indirect | Family Trust |
| Common Stock | 1,000 | Indirect | Family Trust |
Footnotes
- Transaction made pursuant to a 10b5-1 trading plan adopted by the Reporting Person on November 7, 2025.
- Transaction 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.
- The shares are directly held by Michael G. Raab, Trustee of the Michael G. Raab Living Trust dated July 25, 2012.
- The shares are owned directly by trusts for the benefit of the Reporting Person's children.
- The 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.
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