Company: CNCKW
Filing Date: 2025-11-18
Form Type: 424B3
Source: 0001913847-25-000033
Chunk: 13

Company: Coincheck Group N.V.
Filing Date: 2025-11-18
Form: 424B3
Chunk 13
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| Balance, beginning of period |     |                                      ¥ | 12 |
| Change in fair value         |     |                                        |  3 |
| Foreign exchange impact      |     |                                        | -1 |
|                              |     |                                      ¥ | 14 |

Private warrant liability is valued using a Black-Scholes Merton model. The assumptions used to value the private warrant liabilities were as follows.

|                          |     | As of | March 31, 2025 |     |     | September 30, 2025 |     |
|:-------------------------|:----|:------|---------------:|----:|:----|-------------------:|----:|
| Exercise price           |     | USD   |           11.5 |     | USD |               11.5 |     |
| Share price              |     | USD   |            5.1 |     | USD |                4.6 |     |
| Volatility               |     |       |           35.9 |   % |     |               47.0 |   % |
| Expected life (in years) |     |       |                | 4.7 |     |                    | 4.2 |
| Risk-free rate           |     |       |           3.95 |   % |     |               3.68 |   % |
| Dividend yield           |     |       |           0.00 |   % |     |               0.00 |   % |

(3) Fair value hierarchy of assets and liabilities measured at fair value on a non-recurring basis

#### As of March 31, 2025
There were no significant assets or liabilities measured at fair value on a nonrecurring basis as of March 31, 2025.

#### As of September 30, 2025
15

#### COINCHECK GROUP N.V. and its subsidiaries.
There were no significant assets or liabilities measured at fair value on a nonrecurring basis as of September 30, 2025.

#### 8.

#### Share-based payments
For the six months ended September 30, 2025, Coincheck Parent established an equity-settled share-based payment program. Under this program, the Company granted Restricted Share Units (the “RSUs”) to managing directors and officers, audit and supervisory board members of the Company, and the Company’s qualified employees and non-employee consultants. The RSUs are vested upon the satisfaction of