Coincheck director reports 17,516 CNCK shares, RSUs

Coincheck Group N.V. director Katsuya Toshihiko reported his initial holdings on a Form 3.

Accepted by SEC EDGAR 03/31/2026 - 08:35 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Coincheck Group N.V. director Katsuya Toshihiko reported his initial holdings on a Form 3. He directly holds 17,516 Ordinary Shares. He also holds restricted share units and performance-based restricted share units, each tied to 5,102 underlying Ordinary Shares with vesting linked to time and share-price targets.

Insider Trade Summary

Holdings reported, no transactions

Holdings

Insider Katsuya Toshihiko

Role Director

Type	Security	Shares	Price	Value
Holding	Restricted Share Units	--	--	--
Holding	Performance-Based Restricted Share Units	--	--	--
Holding	Ordinary Shares	--	--	--

Holdings: Restricted Share Units — 5,102 contracts (Direct); Performance-Based Restricted Share Units — 5,102 contracts (Direct); Ordinary Shares — 17,516 shares (Direct)

Footnotes (2)

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 three substantially equal annual installments beginning on March 31, 2026.
2. F2. Each performance-based restricted share unit represents a contingent right to receive one ordinary share of the Issuer, an equivalent amount of cash, or a combination thereof. The performance-based restricted share units are scheduled to vest based on the Issuer's ordinary shares having achieved a certain average closing price per share target by the end of the three-year performance period ending on March 31, 2028. Any earned performance-based restricted share units vest in full on March 31, 2028.

Key Figures

Direct ordinary share holdings: 17,516 Ordinary Shares Underlying shares for RSUs: 5,102 Ordinary Shares Underlying shares for performance RSUs: 5,102 Ordinary Shares

3 metrics

Direct ordinary share holdings 17,516 Ordinary Shares Total shares following holding entry

Underlying shares for RSUs 5,102 Ordinary Shares Restricted share units, each unit equals one share or cash equivalent

Underlying shares for performance RSUs 5,102 Ordinary Shares Performance-based restricted share units contingent on share-price target by March 31, 2028

Key Terms

Restricted Share Units, Performance-Based Restricted Share Units, contingent right, performance period

4 terms

Restricted Share Units financial

"Each restricted share unit represents a contingent right to receive one ordinary share of the Issuer"

Restricted share units (RSUs) are a promise from a company to give an employee or service provider actual shares or cash equal to the shares after certain conditions are met, typically staying with the company for a set time or hitting performance targets. Think of them like a time-locked gift card that becomes usable only after you’ve earned it. For investors, RSUs matter because they align employee incentives with company performance and can increase the number of shares outstanding over time, diluting existing ownership and affecting earnings per share.

Performance-Based Restricted Share Units financial

"Each performance-based restricted share unit represents a contingent right to receive one ordinary share of the Issuer"

Performance-based restricted share units are promises to give company stock to employees or executives only if the business hits specified targets, such as revenue, profit or stock performance; think of them as a bonus paid in shares that only vests when certain goals are met. They matter to investors because they align management incentives with shareholder outcomes, can dilute share count when paid out, and reveal how leadership is being rewarded and what milestones the company expects to reach.

contingent right financial

"represents a contingent right to receive one ordinary share of the Issuer, an equivalent amount of cash"

performance period financial

"three-year performance period ending on March 31, 2028"

The performance period is the specific time span over which an investment’s results, an employee’s targets, or a fund’s returns are measured and judged. It matters to investors because the length and start/end of that window determine which gains or losses count toward performance fees, bonus payouts, or benchmark comparisons—much like timing a race decides who wins, the chosen period can change whether results look strong or weak.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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^*

Katsuya Toshihiko

(Last) (First) (Middle)

NIEUWEZIJDS VOORBURGWAL

162, 1012 SJ

(Street)

AMSTERDAM 00000

(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	5,102	(1)	D
Performance-Based Restricted Share Units	(2)	(2)	Ordinary Shares	5,102	(2)	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 three substantially equal annual installments beginning on March 31, 2026.

2. Each performance-based restricted share unit represents a contingent right to receive one ordinary share of the Issuer, an equivalent amount of cash, or a combination thereof. The performance-based restricted share units are scheduled to vest based on the Issuer's ordinary shares having achieved a certain average closing price per share target by the end of the three-year performance period ending on March 31, 2028. Any earned performance-based restricted share units vest in full on March 31, 2028.

Remarks:

Exhibit List: Exhibit 24 - Power of Attorney.

	/s/ Marc Stone, as Attorney-in-Fact	03/31/2026
	** 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)