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

Rhea-AI Filing Summary

Coincheck Group N.V. filed a Form 6-K reporting an update for its Japanese operating subsidiary Coincheck, Inc. The filing describes Coincheck as a regulated Japanese crypto exchange and marketplace offering trading and retail crypto services for assets such as Bitcoin and Ethereum. Coincheck Group states it posts investor materials and SEC filings on its corporate website and may send email alerts to subscribers. The filing also defines key metrics used in its monthly reports: Exchange Trading Volume, Marketplace Trading Volume, Customer Assets, and Verified Accounts, and notes prior monthly numbers may be updated immaterially.

Insights

Financial Analyst

TL;DR: Routine disclosure clarifying business scope and metric definitions; no new financial results or material events disclosed.

The report is a standard Form 6-K update that reiterates Coincheck's role as a regulated crypto exchange in Japan and explains how it measures monthly activity and user/customer balances. Definitions for Exchange Trading Volume, Marketplace Trading Volume, Customer Assets, and Verified Accounts improve transparency for interpreting future monthly figures. Because the filing contains no revenue, volume figures, or operational changes, it has no immediate valuation implications.

Corporate Governance Expert

TL;DR: Governance-appropriate disclosure of investor access points and metric definitions; no governance changes reported.

The filing emphasizes public availability of materials on the corporate website and opt-in email alerts, which supports investor communications practices. It cleanly separates Coincheck Group from operating subsidiary Coincheck, Inc., and clarifies measurement conventions (J-GAAP basis for customer assets, KYC for verified accounts). The disclosure is pro forma and does not report executive, structural, or regulatory developments.

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 September 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 ☐

Coincheck Group N.V. (“Coincheck Group”) is providing the below update for Coincheck, Inc. (“Coincheck”). This information will also be posted at https://coincheck.com. Coincheck Group (“CNCK” and “CNCKW”) is a public limited liability company and the holding company for Coincheck. Coincheck operates one of the largest multi-cryptocurrency marketplaces and crypto asset exchanges in Japan and is regulated by the Japan Financial Services Agency. Coincheck provides Marketplace and Exchange platforms on which diverse cryptocurrencies, including Bitcoin and Ethereum, are held and exchanged as well as other retail-focused crypto services.

Coincheck Group uses its website (https://www.coincheckgroup.com/) to distribute company information and makes available free of charge a variety of information for investors, including its filings with the Securities and Exchange Commission (“SEC”), as soon as reasonably practicable after electronically filing that material with, or furnishing it to, the SEC. The information that Coincheck Group posts on its website may be deemed material. Accordingly, investors should monitor Coincheck Group’s website, in addition to following its press releases, filings with the SEC, and public conference calls and webcasts. In addition, investors may opt in to automatically receive email alerts and other information about Coincheck Group when enrolling their email address by visiting the “Email Alerts” section of the Coincheck Group website. Coincheck Group does not incorporate the information contained on, or accessible through, Coincheck Group’s website, Coincheck’s website or related social media channels into this Report on Form 6-K.

Monthly Disclosure

Coincheck, Inc. is reporting the following preliminary monthly disclosure information for the past twelve months. The preliminary numbers in the tables below are based on currently available information. These preliminary estimates have not been audited by any independent registered public accountants, are subject to update and should not be extrapolated for future periods. 

			Sep. 2024						Oct. 2024						Nov. 2024						Dec. 2024						Jan. 2025						Feb. 2025
Exchange Trading Volume (Million yen)			278,984						324,265						728,270						621,559						595,094						410,135
Marketplace Trading Volume (Million yen)			13,412						18,916						50,404						48,116						46,700						25,629
Customer Assets (Million yen)			669,357						735,675						1,106,754						1,142,223						1,285,614						873,795
Number of Verified Accounts			2,100,374						2,110,974						2,152,448						2,197,619						2,258,295						2,278,320

			Mar. 2025						Apr. 2025						May. 2025						Jun. 2025						Jul. 2025						Aug. 2025
Exchange Trading Volume (Million yen)			454,277						366,050						375,676						310,449						387,980						318,293
Marketplace Trading Volume (Million yen)			19,637						21,672						21,333						18,525						39,165						29,146
Customer Assets (Million yen)			859,623						886,884						989,365						1,000,300						1,239,868						1,159,863
Number of Verified Accounts			2,291,103						2,302,376						2,325,978						2,351,223						2,378,672						2,400,859

Notes 

●Exchange Trading Volume for a specific period is the total value, based on the underlying asset, of all transactions completed through Coincheck’s exchange platform. Coincheck’s exchange platform facilitates buy and sell transactions directly between two parties (a buyer and a seller) for which, generally, Coincheck charges no fee. Coincheck sometimes is a buyer on the exchange platform to help support transaction activity on the marketplace platform.

●Marketplace Trading Volume for a specific period is the total value, based on the underlying asset, of all transactions completed through Coincheck’s marketplace platform business. Historically, Coincheck’s total revenue has been derived primarily from transactions on Coincheck’s marketplace platform business. For additional details, please see Coincheck Group N.V.’s filings with the U.S. Securities and Exchange Commission.

●Customer Assets and Number of Verified Accounts correspond to figures as of the end of each month. Verified Accounts are all accounts that have been opened after the account owner completes all application procedures (including “know your customer” or “KYC”), after subtracting therefrom the total number of closed accounts.

●Customer Assets are cryptocurrencies held for customers + fiat currency deposited by customers on a Japanese generally accepted accounting principles (J-GAAP) basis. Customer Assets do not include non-fungible tokens (NFTs).

●Prior monthly numbers, which are generally preliminary at the time of initial publication, may have been updated by immaterial amounts.

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: September 02, 2025			By:			/s/ Gary A. Simanson
						Name:			Gary A. Simanson
						Title:			Chief Executive Officer and President

FAQ

What does Coincheck Group's Form 6-K for September 2025 disclose?

It provides an update describing Coincheck's business, where investor materials are posted, and definitions of key monthly metrics; it does not include financial results.

How does Coincheck Group define Exchange Trading Volume and Marketplace Trading Volume?

Exchange Trading Volume is the total value of transactions on the exchange platform; Marketplace Trading Volume is the total value of transactions on the marketplace platform.

What are Customer Assets and Verified Accounts according to the filing?

Customer Assets are cryptocurrencies held for customers plus fiat deposits on a J-GAAP basis and exclude NFTs; Verified Accounts are accounts with completed KYC minus closed accounts.

Where can investors find Coincheck Group's filings and updates?

On Coincheck Group's corporate website and Coincheck's website; investors may also opt in for email alerts via the "Email Alerts" section.

Did the Form 6-K report any material transactions, earnings, or regulatory actions?

No. The filing contains no financial results, transaction announcements, or regulatory developments; it focuses on business description and metric definitions.