Mars Group Holdings Co., Ltd.
Mars Group Holdings Co., Ltd. is a Private limited company (Ltd.) registered in Japan under 7011101019888, and its current status with National Tax Agency — Corporate Number Publication Site is active. The company was incorporated on 5 October 2015 and lists its registered address as Shinjuku Ward, Japan. 5 shareholders are on record for Mars Group Holdings Co., Ltd., and since every one of them is a company rather than an individual, this particular filing does not on its own establish an ultimate beneficial owner (UBO) — identifying one would mean tracing the ownership of each shareholding company in turn. This profile is sourced directly from National Tax Agency — Corporate Number Publication Site and was last updated on 2 October 2026.
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Shareholders
5
Five shareholders are currently on record for Mars Group Holdings Co., Ltd., reflecting the kabunushi meibo (shareholder register) maintained under Articles 121-122 of the Companies Act rather than a public filing.
The largest of these is Vanguard International Stock Index-Total Intl Stock Indx, holding 13.9% — the largest recorded stake — followed by DFA Japanese Small Company Series at 9.7%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 9 shareholders in total, though only the top 5 by holding are shown in this view.
Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| Vanguard International Stock Index-Total Intl Stock Indx | 13.9% | National Tax Agency — Corporate Number Publication Site | |
| DFA Japanese Small Company Series | 9.7% | National Tax Agency — Corporate Number Publication Site | |
| Vanguard Tax Managed Fund-Vanguard Developed Markets Index Fund | 9.3% | National Tax Agency — Corporate Number Publication Site | |
| DFA International Core Equity Portfolio | 6.3% | National Tax Agency — Corporate Number Publication Site | |
| Vanguard Intl Equity Index Fds-FTSE All World ex U.S.Small Cap Index | 4.6% | National Tax Agency — Corporate Number Publication Site |
Officers
3
Three officers are currently on record for Mars Group Holdings Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site. Akihiro Matsunami serves as Chairman & President; Toshiaki Sato serves as Full-time Auditor; Heizaburo Ide serves as Executive Officer And Manager Of Technology Development Department.
Management authority at Mars Group Holdings Co., Ltd. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.
Group Structure
Mars Group Holdings Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 7 subsidiaries recorded beneath it across 1 jurisdiction. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.
Those 7 subsidiaries span Japan jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 7 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
Mars Group Holdings Co., Ltd.
Japan
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Frequently Asked Questions
Who owns Mars Group Holdings Co., Ltd.?
Five shareholders are currently on record for Mars Group Holdings Co., Ltd., reflecting the kabunushi meibo (shareholder register) maintained under Articles 121-122 of the Companies Act rather than a public filing. The largest of these is Vanguard International Stock Index-Total Intl Stock Indx, holding 13.9% — the largest recorded stake — followed by DFA Japanese Small Company Series at 9.7%; the remaining 3 shareholders shown hold smaller stakes. Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Who is Mars Group Holdings Co., Ltd.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for Mars Group Holdings Co., Ltd. is itself a company rather than a natural person, so no Ultimate Beneficial Owner (UBO) is identified at this level; establishing one would require tracing the ownership of each shareholding company in turn.
How many shareholders does Mars Group Holdings Co., Ltd. have on record?
5 shareholders are shown on record for Mars Group Holdings Co., Ltd.. The register reports 9 in total; only the top 5 by holding are shown here.
What is Mars Group Holdings Co., Ltd.'s company registration number?
Mars Group Holdings Co., Ltd.'s registration number is 7011101019888, filed with National Tax Agency — Corporate Number Publication Site in Japan. Its current status on the register is active.
Is Mars Group Holdings Co., Ltd. still an active company?
Mars Group Holdings Co., Ltd.'s status on National Tax Agency — Corporate Number Publication Site is listed as active.
When was Mars Group Holdings Co., Ltd. incorporated?
Mars Group Holdings Co., Ltd. was incorporated on 5 October 2015, according to National Tax Agency — Corporate Number Publication Site.
What is Mars Group Holdings Co., Ltd.'s registered address?
The registered address on file for Mars Group Holdings Co., Ltd. is Shinjuku Ward, Japan.
What legal structure is Mars Group Holdings Co., Ltd. registered as?
Mars Group Holdings Co., Ltd. is registered as a Private limited company (Ltd.) in Japan.
Who are the officers/directors of Mars Group Holdings Co., Ltd.?
Three officers are currently on record for Mars Group Holdings Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site. Akihiro Matsunami serves as Chairman & President; Toshiaki Sato serves as Full-time Auditor; Heizaburo Ide serves as Executive Officer And Manager Of Technology Development Department. Management authority at Mars Group Holdings Co., Ltd. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does Mars Group Holdings Co., Ltd. have a parent company or subsidiaries?
Mars Group Holdings Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 7 subsidiaries recorded beneath it across 1 jurisdiction. Those 7 subsidiaries span Japan jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 7 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
Can Zavia monitor changes to Mars Group Holdings Co., Ltd.'s ownership over time?
This profile reflects a point-in-time snapshot from National Tax Agency — Corporate Number Publication Site. Zavia's monitoring API can track changes to Mars Group Holdings Co., Ltd.'s registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access Mars Group Holdings Co., Ltd.'s data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Japan, so records like Mars Group Holdings Co., Ltd.'s registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from National Tax Agency — Corporate Number Publication Site and was last synced on 2 October 2026.