Company: CNCKW
Filing Date: 2025-08-29
Form Type: POS AM
Source: 0001213900-25-082038
Chunk: 0

Company: Coincheck Group N.V.
Filing Date: 2025-08-29
Form: POS AM
Chunk 0
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As filed with the Securities and Exchange Commission on August 28, 2025 Registration No. 333-284537 UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 __________________________________________ POST-EFFECTIVEAMENDMENT NO. 1 TO
FORM F-1
REGISTRATION STATEMENT Under
The Securities Act of 1933 __________________________________________ COINCHECK GROUP N.V. (Exact name of Registrant as specified in its charter) Not Applicable
(Translation of Registrant’s name into English) __________________________________________

| The Netherlands                 |     |                         6199 |     | Not Applicable        |
| (State or Other Jurisdiction of 
 Incorporation or Organization)  |     | -Primary Standard Industrial 
   Classification Code Number |     | -I.R.S. Employer      
 Identification Number |

Coincheck Group N.V.
Nieuwezijds Voorburgwal 162
1012 SJ Amsterdam
The Netherlands
Jason Sandberg, Chief Financial Officer
coincheckIR@icrinc.com
+31 20 -522-2555 (Address, including zip code, and telephone number, including area code, of Registrant’s principal executive offices) __________________________________________ Cogency Global Inc.
122 East 42 nd Street, 18 th Floor
New York, NY 10168
Telephone: (800) 221 -0102 (Name, address, including zip code, and telephone number, including area code, of agent for service) __________________________________________ Copies to: Mark Brod Takahiro Saito
Jonathan G. Stradling
Simpson Thacher & Bartlett LLP
425 Lexington Avenue New York, NY 10017
Telephone: +1 -212 -455 -2000 __________________________________________ Approximate date of commencement of proposed sale to the public: As soon as practicable after this registration statement becomes effective. If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933 (as amended, the “Securities Act”), check the following box. ☒ If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐ If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following