Bookook Securities Co., Ltd.
Bookook Securities Co., Ltd. is a Private limited company (Ltd.) registered in South Korea under 1168108723, and its current status with Supreme Court Internet Registry (IROS) is active. Its registered address on file is Seoul, South Korea. 5 shareholders are on record for Bookook Securities 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 Supreme Court Internet Registry (IROS) and was last updated on 1 October 2026.
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Shareholders
5
Five shareholders are currently on record for Bookook Securities Co., Ltd., filed with Supreme Court Internet Registry (IROS).
The largest of these is DFA Investment Dimensions-DFA Emerging Mkts Value, holding 43.6% — the largest recorded stake — followed by DFA Emerging Markets Small Cap Series at 31.1%; 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.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| DFA Investment Dimensions-DFA Emerging Mkts Value | 43.6% | Supreme Court Internet Registry (IROS) | |
| DFA Emerging Markets Small Cap Series | 31.1% | Supreme Court Internet Registry (IROS) | |
| DFA Emerging Markets Core Equity Portfolio | 19.6% | Supreme Court Internet Registry (IROS) | |
| DFA Investment Dimensions-Emerging Markets Social Core Equity | 2.9% | Supreme Court Internet Registry (IROS) | |
| Dimensional ETF Tr-Dimensional World ex U.S. Core Equity 2 ETF | 2.7% | Supreme Court Internet Registry (IROS) |
Officers
5
The Chairman & Ceo of Bookook Securities Co., Ltd. currently on record is Hyeon-chul Park; five officers are currently on record for Bookook Securities Co., Ltd., filed with Supreme Court Internet Registry (IROS).
The register reports 14 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at Bookook Securities 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
Bookook Securities Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 1 subsidiary 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 1 subsidiary spans South Korea 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.
Bookook Securities Co., Ltd.
South Korea
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Frequently Asked Questions
Who owns Bookook Securities Co., Ltd.?
Five shareholders are currently on record for Bookook Securities Co., Ltd., filed with Supreme Court Internet Registry (IROS). The largest of these is DFA Investment Dimensions-DFA Emerging Mkts Value, holding 43.6% — the largest recorded stake — followed by DFA Emerging Markets Small Cap Series at 31.1%; 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 Bookook Securities Co., Ltd.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for Bookook Securities 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 Bookook Securities Co., Ltd. have on record?
5 shareholders are shown on record for Bookook Securities Co., Ltd..
What is Bookook Securities Co., Ltd.'s company registration number?
Bookook Securities Co., Ltd.'s registration number is 1168108723, filed with Supreme Court Internet Registry (IROS) in South Korea. Its current status on the register is active.
Is Bookook Securities Co., Ltd. still an active company?
Bookook Securities Co., Ltd.'s status on Supreme Court Internet Registry (IROS) is listed as active.
What is Bookook Securities Co., Ltd.'s registered address?
The registered address on file for Bookook Securities Co., Ltd. is Seoul, South Korea.
What legal structure is Bookook Securities Co., Ltd. registered as?
Bookook Securities Co., Ltd. is registered as a Private limited company (Ltd.) in South Korea.
Who are the officers/directors of Bookook Securities Co., Ltd.?
The Chairman & Ceo of Bookook Securities Co., Ltd. currently on record is Hyeon-chul Park; five officers are currently on record for Bookook Securities Co., Ltd., filed with Supreme Court Internet Registry (IROS). Management authority at Bookook Securities Co., Ltd. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does Bookook Securities Co., Ltd. have a parent company or subsidiaries?
Bookook Securities Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 1 subsidiary recorded beneath it across 1 jurisdiction. Those 1 subsidiary spans South Korea 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.
Can Zavia monitor changes to Bookook Securities Co., Ltd.'s ownership over time?
This profile reflects a point-in-time snapshot from Supreme Court Internet Registry (IROS). Zavia's monitoring API can track changes to Bookook Securities 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 Bookook Securities Co., Ltd.'s data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including South Korea, so records like Bookook Securities 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 Supreme Court Internet Registry (IROS) and was last synced on 1 October 2026.