Company: CNCKW
Filing Date: 2025-09-10
Form Type: 424B3
Source: 0001213900-25-086398
Chunk: 270

Company: Coincheck Group N.V.
Filing Date: 2025-09-10
Form: 424B3
Chunk 270
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 issued private and public warrants to third -partyinvestors where each whole warrant entitled the holder to purchase one share of Thunder Bridge’s Class A common stock at an exercise price of USD11.5 per share. In connection with the Reverse Recapitalization, and pursuant to a warrant assumption and amendment agreement, dated as of December 10, 2024 (the closing date of the Business Combination), Thunder Bridge private and public warrants were exchanged for Coincheck Parent’s private and public warrants, respectively, and subject to the same material terms. Upon the completion of the Reverse Recapitalization, there were 4,730,557 public warrants outstanding and 129,611 private warrants outstanding. The warrants expire on the earlier of the fifth anniversary of the Reverse Recapitalization or the date on which Coincheck Parent may call the public warrants for redemption, subject to the conditions outlined in the warrant assumption and amendment agreement. The warrants are exercisable at a price of USD11.5 per share. 25.Fair value measurement (1)Fair value hierarchy When measuring the fair value of an asset or a liability, the Company uses observable market data as far as possible. Fair values are categorized into different levels in the fair value hierarchy based on the inputs used in the valuation techniques as follows:

| Level 1: |     | Quoted prices without adjustments in an active market for identical assets or liabilities.                                                    |
| Level 2: |     | Inputs other than the quoted prices included within Level 1 that are observable for the assets or liabilities, either directly or indirectly. |
| Level 3: |     | Unobservable inputs for the assets or liabilities.                                                                                            |

The level of fair value hierarchy is determined by the lowest -levelinput that is significant to the measurement of the fair value. There were no transfers between levels for the year ended March 31, 2024 and 2025

F-44

COINCHECK GROUP N.V. and its subsidiaries NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS 25.Fair value measurement (cont.) (2)Fair value hierarchy of assets and liabilities measured at fair value on a recurring basis Fair value hierarchy of assets and liabilities measured at fair value on a recurring basis in the consolidated statements of financial position is as follows: As of March 31, 2024

| (In millions)                  |     | Note |     | Level 1 |        |     | Level 2 |   |     | Level 3 |    |     | Total |        |