[Form 3] Coincheck Group N.V. Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

Coincheck Group N.V. director Oyagi Takashi reported his initial equity holdings. He holds restricted share units that are convertible into 26,490 ordinary shares, together with 17,516 ordinary shares held directly.

Each restricted share unit represents a contingent right to receive one ordinary share, cash, or a combination, and will vest in full on the date of the 2026 annual general meeting of shareholders.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Oyagi Takashi

Role Director

Type	Security	Shares	Price	Value
holding	Restricted Share Units	--	--	--
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Restricted Share Units — 26,490 shares (Direct); Ordinary Shares — 17,516 shares (Direct)

Footnotes (1)

1. F1. Each restricted share unit represents a contingent right to receive one ordinary share of the Issuer, an equivalent amount of cash, or a combination thereof. Such restricted share units will vest in full on the date of the 2026 annual general meeting of shareholders.

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Accepted by SEC EDGAR 03/27/2026 - 09:42 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Oyagi Takashi

(Last) (First) (Middle)

NIEUWEZIJDS VOORBURGWAL

162, 1012 SJ

(Street)

AMSTERDAM

(City) (State) (Zip)

NETHERLANDS

(Country)

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 ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

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	17,516	D

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
Restricted Share Units	(1)	(1)	Ordinary Shares	26,490	(1)	D

Explanation of Responses:

1. Each restricted share unit represents a contingent right to receive one ordinary share of the Issuer, an equivalent amount of cash, or a combination thereof. Such restricted share units will vest in full on the date of the 2026 annual general meeting of shareholders.

Remarks:

Exhibit List: Exhibit 24 - Power of Attorney.

	/s/ Marc Stone, as Attorney-in-Fact	03/27/2026
	** 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.
* Form 3: SEC 1473 (03-26)