As of November 10, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of Coincheck Group N.V. The largest reported stake is Monex Group, Inc.'s, at 83.6%. 3 filings are on record since March 6, 2026 (Schedule 13D/A, May 14, 2026).
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Key facts
- · Holder: KDDI Corporation · Percent: 14.9% · Shares: 28,536,516 · SCHEDULE 13D
- · Holder: Monex Group, Inc. · Percent: 83.6% · SCHEDULE 13D/A
- · Holder: Monex Group, Inc. · Percent: 83.16% · SCHEDULE 13D
Coincheck Group N.V. has 3 Schedule 13D or 13G filings on record since 2026-03-06. 2 holders' latest filing reports 5% or more of ordinary shares, nominal value euro 0.01 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Monex Group, Inc. | 83.6% | 136,247,594 | SCHEDULE 13D/A, 2026-05-14 | 2026-05-12 |
| KDDI Corporation | 14.9% | 28,536,516 | SCHEDULE 13D, 2026-06-09 | 2026-06-09 |
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| KDDI Corporation | 28,536,516 | 136,247,594 | 28,536,516 | 0 | SCHEDULE 13D, 2026-06-09 |
The latest filing identifies Coincheck Group N.V. by CUSIP N20967118 and gives its principal executive office as Nieuwezijds Voorburgwal 162, Amsterdam (SCHEDULE 13D, 2026-06-09).
Source of funds (Item 3)
The Reporting Person acquired beneficial ownership of 28,536,516 ordinary shares of the Issuer reported on this Schedule 13D (the "Shares") for aggregate consideration of $65,063,256.48 on June 9, 2026. The source of the funds used to acquire such beneficial ownership was the working capital of the Reporting Person.KDDI Corporation, SCHEDULE 13D, 2026-06-09
Purpose of Transaction (Item 4)
Monex Group, Inc.
Item 4 of the Schedule 13D is hereby amended and supplemented by the following: The information in Item 6 of this Schedule 13D is incorporated herein by reference.Item 4 of the SCHEDULE 13D/A filed 2026-05-14
KDDI Corporation
The information set forth in Items 3, 5 and 6 is hereby incorporated by reference into this Item 4. The Reporting Person acquired the Shares as an investment and to seek business opportunities with the Issuer and its subsidiaries and affiliates. Consistent with such purposes, and pursuant to the share subscription and investor rights agreement between the Reporting Person and the Issuer, dated May 12, 2026 (the "Share Subscription Agreement")and the agreement between the Reporting Person and Monex Group, Inc., the controlling shareholder of the Issuer ("Monex"), dated May 12, 2026 (the "Acknowledgement Agreement"), each further described below, subject to the limitations, rules and requirements under applicable law, limitations under the articles of incorporation of the Issuer, as amended, as well as any restrictions under the transaction documents described in Item 6, including the aforementioned agreements, the Reporting Person may engage in communications with, without limitation, management of the Issuer, one or more members of the board of directors of the Issuer, other shareholders of the Issuer and other relevant parties, and may make suggestions, concerning the business, assets, capitalization, financial condition, operations, governance, management, prospects, strategy, strategic transactions, financing strategies and alternatives, and future plans of the Issuer, and such other matters as the Reporting Person may deem relevant to its investment in the Issuer, …The first part of Item 4 of the SCHEDULE 13D filed 2026-06-09; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-03-06 | Monex Group, Inc. | 83.16% | SCHEDULE 13D |
| 2026-05-14 | Monex Group, Inc. | 83.6% | SCHEDULE 13D/A |
| 2026-06-09 | KDDI Corporation | 14.9% | SCHEDULE 13D |
Questions about who owns Coincheck Group N.V.
Who owns Coincheck Group N.V.?
On this page, 2 holders' latest ownership filings report 5% or more of Coincheck Group N.V.: Monex Group, Inc. (83.6%, Schedule 13D/A, filed 2026-05-14) and KDDI Corporation (14.9%, Schedule 13D, filed 2026-06-09).
Who are the largest shareholders of Coincheck Group N.V.?
By the share each holder's latest filing reports, the largest holders of Coincheck Group N.V. on this page are Monex Group, Inc. (83.6%) and KDDI Corporation (14.9%).
When did Monex Group, Inc. buy into Coincheck Group N.V.?
The filings give report dates, not purchase dates. The earliest filing from Monex Group, Inc. on this page is the Schedule 13D, filed 2026-03-06, reporting 83.16%; its latest, Schedule 13D/A filed 2026-05-14, reports 83.6%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 3 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.