Sunrise (SNNRF) furnishes 6-K; Q3 2025 results, S-8 incorporation

Rhea-AI Filing Summary

Sunrise Communications AG furnished a Form 6-K to provide its three-month and nine-month interim financial statements. The submission also incorporates this information, excluding Exhibit 99.1, by reference into the Company’s Form S-8 registration statements (Registration No. 333-283098 and No. 333-283426), to the extent not superseded by later filings.

The filing includes two exhibits: a News Release dated November 11, 2025 (Exhibit 99.1) and Third Quarter 2025 Interim Financial Results (Exhibit 99.2).

Form 6-K: How Foreign Companies Report to the SEC →

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of November, 2025

Commission File Number: 001-42394

Sunrise Communications AG

(Exact name of registrant as specified in its charter)

Thurgauerstrasse 101b

8152 Glattpark (Opfikon), Switzerland

Tel: +41 58 777 76 66

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F ☒   Form 40-F ☐

Interim Financial Statements

Sunrise Communications AG (the “Company”) is furnishing this Form 6-K to provide three-month and nine-month interim financial statements and incorporate such financial statements into the Company’s registration statements referenced below.

The information set forth in this Form 6-K (excluding Exhibit 99.1) is hereby incorporated by reference into the registration statements of the Company on Form S-8 (Registration No. 333-283098 and No. 333-283426), to the extent not superseded by documents or reports subsequently filed or furnished by the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended.

SIGNATURE

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

SUNRISE COMMUNICATIONS AG
By:		/s/ Marcel Huber
		Name:		Marcel Huber
		Title:		General Counsel and Corporate Affairs Officer of Sunrise Communications AG

Date: November 12, 2025

EXHIBIT

Exhibit		Description of Exhibit
99.1		News Release dated November 11, 2025
99.2		Third Quarter 2025 Interim Financial Results

FAQ

What did Sunrise Communications AG (SNNRF) file?

The Company furnished a Form 6-K providing three-month and nine-month interim financial statements.

What exhibits are included in Sunrise Communications AG’s 6-K?

Exhibit 99.1 is a News Release dated November 11, 2025, and Exhibit 99.2 is the Third Quarter 2025 Interim Financial Results.

Are the interim financial statements incorporated into any registration statements for SNNRF?

Yes. The information in the Form 6-K (excluding Exhibit 99.1) is incorporated by reference into Form S-8 Registration No. 333-283098 and No. 333-283426.

Does the 6-K include Q3 2025 information for Sunrise Communications AG?

Yes. Exhibit 99.2 contains the Third Quarter 2025 Interim Financial Results.

What period do the interim statements from Sunrise Communications AG cover?

They cover three-month and nine-month periods, as stated in the 6-K.

When was the Form 6-K signed by Sunrise Communications AG?

It was dated November 12, 2025.