石原 真弓石原 真弓

Director (Audit & Supervisory Committee Member), H2O Retailing Corporation

Net worth (est.)
¥4.4M
#40060 in Japan
Listed shares ¥4.3M + other assets ¥124,353
Executive pay
—
Not disclosed
Dividends (a year)
¥75,000
#21458
Total income (est.)
¥75,000
#25574
Pay + dividends, before tax
Taxes (est.)
¥20,236
#25490
Income tax ¥11,486 / resident tax ¥8,750
Other assets (est.)
¥124,353
After-tax income 2019–2026, before spending

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.

Holdings

CompanyHeld bySharesStakePriceValueDividends
H2O Retailing Corporation
8242 · FY ending Mar 2026 · Director (Audit & Supervisory Committee Member)
Own name 1,500 — ¥2,391 ¥3.6M ¥69,000
DyDo GROUP HOLDINGS,INC.
2590 · FY ending Jan 2026 · Audit & Supervisory Board Member
Own name 200 — ¥3,366 ¥673,280 ¥6,000
オーエス株式会社
9637 · FY ending Jan 2023 · Director
Own name 100 — ¥3,102 ¥310,200 ¥2,500
Morishita Jintan Co.,Ltd.
4524 · FY ending Mar 2026 · Director
Own name — — ¥2,226 ¥0 ¥0
Morito Co.,Ltd.
9837 · FY ending Nov 2025 · Director
Own name — — ¥1,638 ¥0 ¥0

By year

YearNet worthListed sharesPayDividendsTotal incomeTaxes (est.)After tax (est.)Share sales (after tax)
2026partial¥4.4M¥4.3M—¥75,000¥75,000¥20,236¥54,764—
2025¥1.9M¥1.8M—¥29,000¥29,000¥10,891¥18,109—
2024partial¥1.3M¥1.3M—¥14,000¥14,000¥7,844¥6,156—
2023¥1.1M¥1.1M—¥15,000¥15,000¥8,047¥6,953—
2022¥758,791¥720,420—¥15,000¥15,000¥8,047¥6,953—
2021¥751,838¥720,420—¥15,000¥15,000¥8,047¥6,953—
2020¥1.1M¥1.1M—¥23,250¥23,250¥9,722¥13,528—
2019¥781,837¥770,900—¥20,000¥20,000¥9,063¥10,937—

"Partial" years carry forward the previous year's value for companies that have not yet filed that year's annual report (such as December year-end companies). Pay and dividends cover only companies that have filed.

Net worth for each year is listed shares plus the other assets (est.) accumulated up to that year. 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 ¥4.4M = listed shares in own name ¥4.3M + other assets (est.) ¥124,353

Total inheritance tax paid: ¥0 (0.0% of the estate).

HeirInheritsTaxAfter tax
Spouse¥2.2M¥0¥2.2M
Each child¥1.1M¥0¥1.1M

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