Comparable stake leader
MONEX GROUP, INC.
SEC ownership of Coincheck Group N.V.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001913847.
Disclosed value leader
MONEX GROUP, INC.
Comparable rows
26/49
Latest evidence
25 Sep 2026
- Public ticker
- CNCK, CNCKW on Nasdaq
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
MONEX GROUP, INC.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
26 of 49
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
MONEX GROUP, INC.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
25 Sep 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001913847
- Issuer location
- 1012 Sj Amsterdam
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Coincheck Group N.V. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
MONEX GROUP, INC.
Disclosed value leader
MONEX GROUP, INC.
Comparable rows
26/49
Latest evidence
25 Sep 2026
13D/G
3/4/5
13F
Lead comparable stake: 84%
23 rows are not safely comparable across share classes.
13D/G row: MONEX GROUP, INC.
Showing 1-8 of 49 holder rows.
Quick read
MONEX GROUP, INC. leads the comparable SEC ownership view at 84%.
26 of 49 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens MONEX GROUP, INC.'s linked filing trail.
Comparable ownership
Top 5
MONEX GROUP, INC.
84%
KDDI CORP
15%
Koichiro Wada
7.5%
Weiss Asset Management LP
0.2%
Gary A. Simanson
0.45%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 49 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| MONEX GROUP, INC. |
13D/G
|
84%
|
$231,620,910
136,247,594 shares
|
$0 | 12 May 2026 |
| KDDI CORP |
13D/G
KDDI Corporation
|
15%
|
$55,360,841
28,536,516 shares
|
$0 | 09 Jun 2026 |
| Koichiro Wada |
13D/G
|
7.5%
|
$71,783,434
9,700,464 shares
|
$0 | 31 Dec 2024 |
| Weiss Asset Management LP |
13D/G
|
0.2%
|
$1,628,007
220,001 shares
|
$0 | 31 Dec 2024 |
| Gary A. Simanson |
3/4/5
CEO and President, Director
|
0.45%
|
$2,181,984
869,317 shares
|
— | 18 Mar 2026 |
| Pascal St.-Jean |
3/4/5
CEO and President, Director
|
0.37%
|
$1,052,599
711,216 shares
|
— | 15 May 2026 |
| Allerd D. Stikker |
3/4/5
Director
|
0.1%
|
$430,693
194,006 shares
|
— | 25 Sep 2026 |
| David Brock Burg |
3/4/5
Director
|
0.02%
|
$97,693
44,006 shares
|
— | 25 Sep 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 06 Oct 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-13 of 13 reporting-owner rows connected to Coincheck Group N.V.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
13
Largest Forms 3/4/5 holder
Gary A. Simanson
Net 12M change
$0
Latest report
25 Sep 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Gary A. Simanson | CEO and President, Director | $2,181,984 | Mixed | 18 Mar 2026 | ||
| Pascal St.-Jean | CEO and President, Director | $1,052,599 | Mixed | 15 May 2026 | ||
| Allerd D. Stikker | Director | $430,693 | Median | 25 Sep 2026 | ||
| Jason Sandberg | Chief Financial Officer | $158,555 | Mixed | 20 Apr 2026 | ||
| David Brock Burg | Director | $97,693 | Median | 25 Sep 2026 | ||
| Sin Yin Tan | Director | $97,693 | Median | 25 Sep 2026 | ||
| Yuri Suzuki | Director | $97,693 | Median | 25 Sep 2026 | ||
| Toshihiko Katsuya | Chief Operating Officer, Director | $48,426 | Mixed | 20 Apr 2026 | ||
| Takashi Oyagi | Director | $44,140 | Mixed | 18 Mar 2026 | ||
| Yo Nakagawa | Chief Planning Officer, Director | $14,714 | Mixed | 20 Apr 2026 | ||
| Satoshi Hasuo | Chief Stakeholder Officer | $7,355 | Mixed | 20 Apr 2026 | ||
| Marc J. Stone | Chief Legal Officer | $6,491 | Mixed | 20 Apr 2026 | ||
| Oki Matsumoto | Director | Mixed | 18 Mar 2026 |
Recent insider transactions for Coincheck Group N.V.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Sin Yin Tan | CNCK | Ordinary Shares | Options Exercise | 151.2% | 26,490 | 44,006 | 25 Sep 2026 | Direct | ||
| Sin Yin Tan | CNCK | Restricted Share Units | Options Exercise | -100% | -26,490 | 0 | 25 Sep 2026 | Direct | ||
| Allerd D. Stikker | CNCK | Ordinary Shares | Options Exercise | 15.8% | 26,490 | 194,006 | 25 Sep 2026 | Direct | ||
| Allerd D. Stikker | CNCK | Restricted Share Units | Options Exercise | -100% | -26,490 | 0 | 25 Sep 2026 | Direct | ||
| Yuri Suzuki | CNCK | Ordinary Shares | Options Exercise | 151.2% | 26,490 | 44,006 | 25 Sep 2026 | Direct | ||
| Yuri Suzuki | CNCK | Restricted Share Units | Options Exercise | -100% | -26,490 | 0 | 25 Sep 2026 | Direct | ||
| David Brock Burg | CNCK | Ordinary Shares | Options Exercise | 151.2% | 26,490 | 44,006 | 25 Sep 2026 | Direct | ||
| David Brock Burg | CNCK | Restricted Share Units | Options Exercise | -100% | -26,490 | 0 | 25 Sep 2026 | Direct | ||
| Pascal St.-Jean | CNCK | Ordinary Shares | Award | 711,216 | 711,216 | 15 May 2026 | Direct | |||
| Marc J. Stone | CNCK | Ordinary Shares | Options Exercise | 2,576 | 2,576 | 20 Apr 2026 | Direct | |||
| Marc J. Stone | CNCK | Restricted Share Units | Options Exercise | -33.3% | -2,576 | 5,153 | 20 Apr 2026 | Direct | ||
| Jason Sandberg | CNCK | Ordinary Shares | Options Exercise | 4.87% | 2,919 | 62,919 | 20 Apr 2026 | Direct | ||
| Jason Sandberg | CNCK | Restricted Share Units | Options Exercise | -33.3% | -2,919 | 5,839 | 20 Apr 2026 | Direct | ||
| Yo Nakagawa | CNCK | Ordinary Shares | Options Exercise | 5,839 | 5,839 | 20 Apr 2026 | Direct | |||
| Yo Nakagawa | CNCK | Restricted Share Units | Options Exercise | -33.3% | -5,839 | 11,677 | 20 Apr 2026 | Direct | ||
| Toshihiko Katsuya | CNCK | Ordinary Shares | Options Exercise | 9.71% | 1,701 | 19,217 | 20 Apr 2026 | Direct | ||
| Toshihiko Katsuya | CNCK | Restricted Share Units | Options Exercise | -33.3% | -1,701 | 3,401 | 20 Apr 2026 | Direct | ||
| Satoshi Hasuo | CNCK | Ordinary Shares | Options Exercise | 2,919 | 2,919 | 20 Apr 2026 | Direct | |||
| Satoshi Hasuo | CNCK | Restricted Share Units | Options Exercise | -33.3% | -2,919 | 5,839 | 20 Apr 2026 | Direct |
* marks a reported price that did not pass the local price check.