CNCK files Form 6-K with Q2 FY2026 results press release (Ex. 99.1)

Rhea-AI Filing Summary

Coincheck Group N.V. (CNCK) furnished a Form 6-K announcing that it issued a press release with financial results for its second quarter of the fiscal year ending March 31, 2026. The press release is provided as Exhibit 99.1.

The company states this information is incorporated by reference into its Registration Statement on Form S-8 (File No. 333-286190), to the extent not superseded by later filings.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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: 001-42438

COINCHECK GROUP N.V.

(Translation of registrant’s name into English)

Nieuwezijds Voorburgwal 162

1012 SJ Amsterdam

The Netherlands

(Address of principal executive offices)

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 ☐

On November 12, 2025, Coincheck Group N.V. (“Coincheck Group”) issued a press release, announcing its financial results for its second quarter of the fiscal year ending March 31, 2026, which is furnished as Exhibit 99.1 to this Report on Form 6-K.

The information in this Report on Form 6-K is incorporated by reference into Coincheck Group’s Registration Statement on Form S-8 (File No. 333-286190), to the extent not superseded by documents or reports subsequently filed or furnished.

Exhibit Index

Exhibit No.						Description
99.1						Press Release issued by Coincheck Group N.V., dated November 12, 2025

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SIGNATURES

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.

			COINCHECK GROUP N.V.
Date: November 12, 2025			By:			/s/ Gary A. Simanson
						Name:			Gary A. Simanson
						Title:			Chief Executive Officer and President

3

FAQ

What did CNCK file with the SEC?

A Form 6-K furnishing a press release with second-quarter financial results for the fiscal year ending March 31, 2026.

What is included as an exhibit in the 6-K for CNCK?

Exhibit 99.1, the press release dated November 12, 2025.

Which period do the results in CNCK’s press release cover?

The second quarter of the fiscal year ending March 31, 2026.

Is the 6-K content incorporated into another CNCK filing?

Yes. It is incorporated by reference into the Form S-8 (File No. 333-286190), to the extent not superseded.

When was the CNCK press release issued?

On November 12, 2025.

What is CNCK’s SEC file number for this issuer listing?

The Commission File Number is 001-42438.