[6-K] Coincheck Group N.V. Current Report (Foreign Issuer)

Rhea-AI Filing Summary

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 August 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 August 5, 2025, Coincheck Group N.V. issued a press release announcing a strategic business relationship between Coincheck Inc. and Mercoin, which is furnished as Exhibit 99.1 to this Report on Form 6-K.

EXHIBIT INDEX

Exhibit No.						Description
99.1						Press Release issued by Coincheck Group N.V., dated August 5, 2025

1

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: August 05, 2025			By:			/s/ Gary A. Simanson
						Name:			Gary A. Simanson
						Title:			Chief Executive Officer and President

2