Form: 3

Initial statement of beneficial ownership of securities

March 18, 2026

SEC Form 3
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES


Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person*
Simanson Gary A
(Last) (First) (Middle)
C/O COINCHECK GROUP N.V.
NIEUWEZIJDS VOORBURGWAL 162
(Street)
AMSTERDAM P7 1012 SJ
(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026 		3. Issuer Name and Ticker or Trading Symbol
Coincheck Group N.V. [ CNCK ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
X Officer (give title below) Other (specify below)
CEO and President
 5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Ordinary shares 233,919(1) D
Ordinary shares 485,398(2) I By Thunder Bridge Capital, LLC
Ordinary shares 100,000(3) I By spouse
Ordinary shares 50,000(3) I By child
Ordinary shares 50,000(3) I By child
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
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.
/s/ Nelson Mullins Riley & Scarborough LLP, Attorney-in-Fact 03/18/2026
** Signature of Reporting Person Date

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 5 (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.