関戸 正実関戸 正実

President & Representative Director, Sekido Co.,Ltd

Net worth (est.)
¥443M
#3142 in Japan
Listed shares · incl. ¥267M via asset-management cos.
Executive pay
¥21.9Mest.
Average for the same officer category
Dividends (a year)
¥0
Total income (est.)
¥21.9M
#4635
Pay + dividends, before tax
Taxes (est.)
¥6.0M
#4438
Income tax ¥4.3M / resident tax ¥1.8M
Other assets (est.)
¥339M
¥782M with shares
After-tax income 2024–2026 (incl. ¥290M from share sales), before spending
Inheritance tax (est.)
¥105M
#2939
If a spouse and two children inherit in statutory shares (change)

Other assets (est.): the sum of each year's after-tax income (pay + dividends in own name − estimated taxes and social insurance) dividends retained by asset-management companies (less about 20% corporate tax), and proceeds from share sales (the drop in shares from the previous year × share price, less 20.315% tax, or about 30% for asset-management companies), for the years we have data. Spending, real estate, donations and savings from earlier years are not reflected.

Asset-management companies: 有限会社関戸興産est. (their holdings are included in net worth)

Holdings

CompanyHeld bySharesStakePriceValueDividends
Sekido Co.,Ltd
9878 · FY ending Mar 2026
有限会社関戸興産 300,000 9.48% ¥889 ¥267M —
Sekido Co.,Ltd
9878 · FY ending Mar 2026 · President & Representative Director
Own name 198,200 6.26% ¥889 ¥176M —

By year

YearNet worthPayDividendsTotal incomeTaxes (est.)After tax (est.)Share sales (after tax)
2026¥443M¥21.9M¥0¥21.9M¥6.0M¥13.9M¥149M
2025¥443M¥21.7M¥0¥21.7M¥5.9M¥13.7M¥142M
2024¥621M¥22.7M¥10.5M¥33.2M¥9.3M¥17.3M—

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 ¥683M = listed shares in own name ¥176M + shares held via asset-management companies ¥168M (value ¥267M less 37% corporate tax on unrealized gains) + other assets (est.) ¥339M

Total inheritance tax paid: ¥105M (15.4% of the estate).

HeirInheritsTaxAfter tax
Spouse¥342M¥0¥342M
Each child¥171M¥52.4M¥118M

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