Shigeo Nishi-oka西岡 成浩

Major shareholder of インテグラル・グループ株式会社

Net worth (est.)
¥1.3B
#2857 in Japan
Listed shares
Executive pay
—
Not disclosed
Dividends (a year)
¥14.8M
#2913
Total income (est.)
—
Pay + dividends, before tax
Inheritance tax (est.)
¥258M
If a spouse and two children inherit in statutory shares (change)

Holdings

CompanyHeld bySharesStakePriceValueDividends
インテグラル・グループ株式会社
5842 · FY ending Dec 2025
Own name 400,000 1.18% ¥3,323 ¥1.3B ¥14.8M

By year

YearNet worthPayDividendsTotal incomeTaxes (est.)After tax (est.)Share sales (after tax)
2025¥1.3B—¥14.8M————
2024¥1.7B—¥13.6M————

Grouped by the calendar year of each company's fiscal year-end. Years in which the person was not among the top 10 shareholders of a company exclude that company.

Inheritance tax (estimate)

Estate ¥1.3B = listed shares in own name ¥1.3B

Total inheritance tax paid: ¥258M (19.4% of the estate).

HeirInheritsTaxAfter tax
Spouse¥665M¥0¥665M
Each child¥332M¥129M¥203M

Japanese inheritance tax, assuming the estate is split in statutory shares. A spouse pays no tax up to ¥160M or the statutory share, whichever is larger. Family size is not in the securities reports, so you can choose it (with no children, parents or siblings also become heirs, so the real figure differs). Business-succession deferrals, lifetime gifts, donations to foundations, debts and other reliefs are not reflected.

Estimates from annual securities reports (EDINET). The English name is romanized automatically and may differ from the spelling the person uses. Methodology · Corrections and removal requests: contact