Ardelyx (ARDX) furnishes earnings release for quarter ended Sept. 30, 2025

Rhea-AI Filing Summary

Ardelyx, Inc. filed a current report stating that on October 30, 2025 it announced its financial results for the quarter ended September 30, 2025. The company furnished the full text of the related earnings press release as Exhibit 99.1, rather than treating it as filed, which affects how it may be used in future securities law filings. The report also notes the inclusion of an Inline XBRL cover page data file as Exhibit 104.

8-K Event Classification

2 items: 2.02, 9.01

2 items

Item 2.02 Results of Operations and Financial Condition Financial

Disclosure of earnings results, typically an earnings press release or preliminary financials.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Understanding 8-K Material Events →

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 30, 2025

ARDELYX, INC.

(Exact name of registrant as specified in its charter)

Delaware			001-36485			26-1303944
(State or other jurisdiction of incorporation)			(Commission File Number)			(IRS Employer Identification Number)

400 FIFTH AVE., SUITE 210, WALTHAM, MASSACHUSETTS 02451

(Address of principal executive offices, including Zip Code)

Registrant’s telephone number, including area code: (510) 745-1700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐			Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐			Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐			Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common Stock, par value $0.0001

ARDX

The Nasdaq Global Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  o

Item 2.02    Results of Operations and Financial Condition.

On October 30, 2025, Ardelyx, Inc. (the “Company”) announced its financial results for the quarter ended September 30, 2025. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information furnished under this Item 2.02 shall not be considered “filed” under the Securities Exchange Act of 1934, as amended, nor shall it be incorporated by reference into any future filing under the Securities Act of 1933, as amended, or under the Securities Exchange Act of 1934, as amended, unless the Company expressly sets forth in such future filing that such information is to be considered “filed” or incorporated by reference therein.

Item 9.01    Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.						Description
99.1						Press release of Ardelyx, Inc.
104						Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: October 30, 2025			ARDELYX, INC.
			By:			/s/ Justin Renz
						Justin Renz
						Chief Financial and Operations Officer

FAQ

What did Ardelyx (ARDX) disclose in this 8-K filing?

Ardelyx disclosed that on October 30, 2025 it announced financial results for the quarter ended September 30, 2025 and furnished the related earnings press release as Exhibit 99.1.

Where can investors find Ardelyx's financial results for the quarter ended September 30, 2025?

The detailed financial results are contained in the earnings press release that Ardelyx furnished as Exhibit 99.1 to this report.

Are Ardelyx's October 30, 2025 earnings results considered filed with the SEC?

No. Ardelyx states that the information provided under Item 2.02, including the Exhibit 99.1 press release, is furnished and not considered filed under the Securities Exchange Act of 1934.

What period do the Ardelyx (ARDX) earnings in this 8-K relate to?

The earnings announcement described in the report relates to Ardelyx's financial results for the quarter ended September 30, 2025.

What exhibits are included with this Ardelyx 8-K on October 30, 2025?

The report lists two exhibits: Exhibit 99.1, the Ardelyx earnings press release, and Exhibit 104, the cover page interactive data file embedded within the Inline XBRL document.