Company: CNCKW
Filing Date: 2025-05-20
Form Type: 424B3
Source: 0001213900-25-046039
Chunk: 1

Company: Coincheck Group N.V.
Filing Date: 2025-05-20
Form: 424B3
Chunk 1
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 except to the extent that the
information in this prospectus supplement updates and supersedes the information contained therein.

Investing in our securities involves a high degree of risk. See “Risk Factors” beginning on page 13 of this prospectus for a discussion of information that should be considered in connection with an investment in our securities.

Neither the U.S. Securities and Exchange Commission, or SEC, nor any other regulatory body has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

<div align='center'>PROSPECTUS SUPPLEMENT NO. 1, DATED MAY 20, 2025

Coincheck Reports Financial Results for Fourth Quarter and Year Ended March 31, 2025

Fourth Quarter Total Revenue Increased 13% Year-over-Year and Decreased 7% Quarter-over-Quarter

Full-Year Total Revenue Increased by 71%</div>

Amsterdam, Netherlands – May 13, 2025 –
Coincheck Group N.V. (Nasdaq: CNCK) (“Coincheck Group”, the “Company” or “Group”), a Dutch public
limited liability company and the holding company of Coincheck, Inc. (“Coincheck”), a leading Japanese crypto exchange company,
today reported financial results for the fourth quarter and year ended March 31, 2025 (“fiscal 2025”).

Financial Highlights: 1

Certain Year-Over-Year Highlights

| ● | Total revenue increased 13%                                                                                                    
 to ¥114.6 billion ($764 million) in the fourth quarter of fiscal 2025 from ¥101.4 billion ($676 million) in the fourth quarter 
 of fiscal 2024, and increased 71%, to ¥383.3 billion ($2,557 million) in the fiscal 2025 full year from ¥224.0 billion ($1,495 
 million) in the fiscal 2024 full year.                                                                                         |

| ● | Gross margin2                                                                              
 decreased 20% to ¥3.5 billion ($24 million) in the fourth quarter of fiscal 2025, compared 
 to ¥4.4 billion ($30 million) in the fourth quarter of fiscal 2024, and increased 46%      
 to ¥13.5 billion ($90 million) in the fiscal 2025 full year, compared to ¥9.3 billion      
 ($62 million) in the fiscal 2024 full year.                                                |

| ● | Verified Accounts3                                                                       
 increased