Company: CNCKW
Filing Date: 2025-11-18
Form Type: 424B3
Source: 0001913847-25-000033
Chunk: 19

Company: Coincheck Group N.V.
Filing Date: 2025-11-18
Form: 424B3
Chunk 19
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 compared to six as of March 31, 2025, as a result of M1 GK being merged into Coincheck in June 2025. The following is a list of the Company’s five consolidated subsidiaries as of September 30, 2025.

| Name of subsidiary                         |     | Place of incorporation and operation |     | Contents of business                                                                                 |     | Percentage of voting rights held by the Company |     |   |
| Coincheck, Inc.                            |     | Japan                                |     | Provides end-to-end crypto asset exchange services and operates a multi-cryptocurrency marketplaces. |     |                                                 | 100 | % |
| CCG Administrative Services, Inc.          |     | US                                   |     | Provides certain administrative services for Coincheck Group N.V.                                    |     |                                                 | 100 | % |
| Next Finance Tech Group                    |     | Japan                                |     | Provides staking service.                                                                            |     |                                                 | 100 | % |
| Next Finance Tech Digital Assets Co., Ltd. |     | Japan                                |     | Borrows cryptocurrencies.                                                                            |     |                                                 | 100 | % |
| Next Finance Tech International Co., Ltd.  |     | Cayman Islands                       |     | Manages Next Finance’s insurance.                                                                    |     |                                                 | 100 | % |

#### 12.

#### Events after the reporting date
Coincheck Parent entered into a Share Contribution and Transfer Agreement dated August 27, 2025 (the "SCTA") to acquire all of the issued and outstanding shares of Aplo SAS, a simplified joint stock company ( société par actions simplifiée ) under the laws of France, with its registered seat at 15, rue des Halles 75001 Paris, France, and with the Trade and Companies Registry of Paris under unique identification number 878 929 405 ("Aplo"). Aplo is a digital asset prime brokerage that serves institutional crypto investors, and is

19

#### COINCHECK GROUP N.V. and its subsidiaries.
headquartered in Paris, France. The SCTA closed on October 14, 2025 (the "Closing Date"). Pursuant to the terms of the SCTA, on the Closing Date the shareholders of Aplo delivered to Coincheck Parent 100% of the issued and outstanding shares of Aplo, making Coincheck Parent the sole shareholder of Aplo, in exchange for 5,007,500 newly issued Ordinary Shares of Coincheck Parent (the "Share Consideration").