Go Ishikawa石川 剛

Director, S&J株式会社

Net worth (est.)
¥356M
#6188 in Japan
Listed shares ¥352M + other assets ¥3.6M
Executive pay
—
Not disclosed
Dividends (a year)
¥3.8M
#6389
Total income (est.)
¥3.8M
#18125
Pay + dividends, before tax
Taxes (est.)
¥232,000
#19953
Income tax ¥0 / resident tax ¥232,000
Other assets (est.)
¥3.6M
After-tax income 2019–2026, before spending
Inheritance tax (est.)
¥38.3M
#6181
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.

Holdings

CompanyHeld bySharesStakePriceValueDividends
S&J株式会社
5599 · FY ending Mar 2026 · Director
Own name 250,000 4.49% ¥1,408 ¥352M ¥3.8M
インパクトホールディングス株式会社
6067 · FY ending Dec 2022 · Director
Own name 8,000 — ¥3,908 ¥31.3M ¥80,000
Altech Co., Ltd.
9972 · FY ending Nov 2025 · Audit & Supervisory Board Member
Own name — — — — ¥0
CTI Engineering Co.,Ltd.
9621 · FY ending Dec 2025 · Audit & Supervisory Board Member
Own name — — ¥2,972 ¥0 ¥0

By year

YearNet worthListed sharesPayDividendsTotal incomeTaxes (est.)After tax (est.)Share sales (after tax)
2026partial¥356M¥352M—¥3.8M¥3.8M¥232,000¥3.5M—
2025¥222M¥222M—¥0¥0¥0¥0—
2024¥226M¥226M—¥0¥0¥0¥0—
2023partial¥31.3M¥31.3M—¥0¥0¥0¥0—
2022¥31.3M¥31.3M—¥80,000¥80,000¥21,252¥58,748—
2021¥29.4M¥29.4M—¥0¥0¥0¥0—
2020¥29.4M¥29.4M—¥0¥0¥0¥0—
2019¥2.1M¥2.1M—¥11,250¥11,250¥7,284¥3,966—

"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 ¥356M = listed shares in own name ¥352M + other assets (est.) ¥3.6M

Total inheritance tax paid: ¥38.3M (10.8% of the estate).

HeirInheritsTaxAfter tax
Spouse¥178M¥0¥178M
Each child¥88.9M¥19.2M¥69.7M

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