# EDGAR Filing Document

**Accession Number:** 0001339459
**File Stem:** 0001339459-26-000003
**Filing Date:** 2026-3
**Character Count:** 5409
**Document Hash:** cdd39f7fc58f9ef15c708ef8e177c9ef
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001339459-26-000003.hdr.sgml**: 20260318

**ACCESSION NUMBER**: 0001339459-26-000003

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260318

**FILED AS OF DATE**: 20260318

**DATE AS OF CHANGE**: 20260318

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Simanson Gary A
- **CENTRAL INDEX KEY:** 0001339459

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42438
- **FILM NUMBER:** 26770603

**MAIL ADDRESS:**
- **STREET 1:** 717 KING STREET
- **CITY:** ALEXANDRIA
- **STATE:** VA
- **ZIP:** 22314
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Coincheck Group N.V.
- **CENTRAL INDEX KEY:** 0001913847
- **STANDARD INDUSTRIAL CLASSIFICATION:** FINANCE SERVICES [6199]
- **ORGANIZATION NAME:** 09 Crypto Assets
- **EIN:** 000000000
- **STATE OF INCORPORATION:** P7
- **FISCAL YEAR END:** 0331

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** NIEUWEZIJDS VOORBURGWAL 162
- **CITY:** 1012 SJ AMSTERDAM
- **PROVINCE COUNTRY:** P7
- **BUSINESS PHONE:** 31-20-522-2555

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** NIEUWEZIJDS VOORBURGWAL 162
- **CITY:** 1012 SJ AMSTERDAM
- **PROVINCE COUNTRY:** P7

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Coincheck Group B.V.
- **DATE OF NAME CHANGE:** 20220228

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Simanson Gary A<br><sub>(Last) (First) (Middle)</sub><br>C/O COINCHECK GROUP N.V.<br>NIEUWEZIJDS VOORBURGWAL 162<br><sub>(Street)</sub><br>AMSTERDAM, NETHERLANDS 1012 SJ<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Coincheck Group N.V. [ CNCK ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-03-18 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_CEO and President_ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Ordinary shares | 233919<sup>(1)</sup> | D |  |
| Ordinary shares | 485398<sup>(2)</sup> | I | By Thunder Bridge Capital, LLC |
| Ordinary shares | 100000<sup>(3)</sup> | I | By spouse |
| Ordinary shares | 50000<sup>(3)</sup> | I | By child |
| Ordinary shares | 50000<sup>(3)</sup> | I | By child |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) Certain of the securities reported in Column 2 of Table I are restricted stock units ("RSUs"), each of which represents the contingent right to receive one of the Issuer's ordinary shares with a nominal value of one eurocent (EUR 0.01) each, subject to the conditions of the applicable RSU award (including the vesting schedule set forth therein) and the Issuer's 2024 Omnibus Incentive Plan.

(2) The Reporting Person is the managing director of Thunder Bridge Capital, LLC. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

(3) The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

**Signature:** /s/ Nelson Mullins Riley & Scarborough LLP, Attorney-in-Fact  
**Date:** 2026-03-18

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**