Sankyo Seiko Co., Ltd.
Sankyo Seiko Co., Ltd. is a registered legal entity registered in Japan under 5240001030819, 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 Fukuyama City, Japan. 5 shareholders are on record for Sankyo Seiko 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 3 October 2026.
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Shareholders
5
Five shareholders are currently on record for Sankyo Seiko 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 27.2% — the largest recorded stake — followed by Vanguard Tax Managed Fund-Vanguard Developed Markets Index Fund at 15.4%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 10 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 | 27.2% | National Tax Agency — Corporate Number Publication Site | |
| Vanguard Tax Managed Fund-Vanguard Developed Markets Index Fund | 15.4% | National Tax Agency — Corporate Number Publication Site | |
| DFA Japanese Small Company Series | 15.1% | National Tax Agency — Corporate Number Publication Site | |
| DFA International Small Cap Value Portfolio | 14.4% | National Tax Agency — Corporate Number Publication Site | |
| DFA International Core Equity Portfolio | 11.1% | National Tax Agency — Corporate Number Publication Site |
Officers
5
The Chairman, President & Ceo of Sankyo Seiko Co., Ltd. currently on record is Akira Inoue; five officers are currently on record for Sankyo Seiko Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site.
The register reports 6 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at Sankyo Seiko 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.
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Frequently Asked Questions
Who owns Sankyo Seiko Co., Ltd.?
Five shareholders are currently on record for Sankyo Seiko 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 27.2% — the largest recorded stake — followed by Vanguard Tax Managed Fund-Vanguard Developed Markets Index Fund at 15.4%; 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 Sankyo Seiko Co., Ltd.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for Sankyo Seiko 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 Sankyo Seiko Co., Ltd. have on record?
5 shareholders are shown on record for Sankyo Seiko Co., Ltd.. The register reports 10 in total; only the top 5 by holding are shown here.
What is Sankyo Seiko Co., Ltd.'s company registration number?
Sankyo Seiko Co., Ltd.'s registration number is 5240001030819, filed with National Tax Agency — Corporate Number Publication Site in Japan. Its current status on the register is active.
Is Sankyo Seiko Co., Ltd. still an active company?
Sankyo Seiko Co., Ltd.'s status on National Tax Agency — Corporate Number Publication Site is listed as active.
When was Sankyo Seiko Co., Ltd. incorporated?
Sankyo Seiko Co., Ltd. was incorporated on 5 October 2015, according to National Tax Agency — Corporate Number Publication Site.
What is Sankyo Seiko Co., Ltd.'s registered address?
The registered address on file for Sankyo Seiko Co., Ltd. is Fukuyama City, Japan.
Who are the officers/directors of Sankyo Seiko Co., Ltd.?
The Chairman, President & Ceo of Sankyo Seiko Co., Ltd. currently on record is Akira Inoue; five officers are currently on record for Sankyo Seiko Co., Ltd., filed with National Tax Agency — Corporate Number Publication Site. Management authority at Sankyo Seiko Co., Ltd. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Can Zavia monitor changes to Sankyo Seiko 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 Sankyo Seiko 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 Sankyo Seiko 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 Sankyo Seiko 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 3 October 2026.