Shiro Matsuo松尾 志郎

Major shareholder of GMO Media, Inc.

Net worth (est.)
¥631M
#4292 in Japan
Listed shares ¥595M + other assets ¥36.3M
Executive pay
—
Not disclosed
Dividends (a year)
¥22.2M
#2344
Total income (est.)
¥22.2M
#10129
Pay + dividends, before tax
Taxes (est.)
¥4.5M
#11347
Income tax ¥3.4M / resident tax ¥1.1M
Other assets (est.)
¥36.3M
After-tax income 2021–2025, before spending
Inheritance tax (est.)
¥93.4M
#4270
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
GMO Media, Inc.
6180 · FY ending Dec 2025
Own name 22,000 1.21% ¥5,624 ¥124M ¥5.3M
GMO TECH株式会社
6026 · FY ending Dec 2024
Own name 14,000 1.32% ¥7,800 ¥109M ¥4.3M
Adways Inc.
2489 · FY ending Dec 2025
Own name 386,900 0.99% ¥264 ¥102M ¥2.5M
TAC株式会社
4319 · FY ending Mar 2025
Own name 493,200 2.72% ¥204 ¥100M ¥2.0M
GMO Pepabo, Inc.
3633 · FY ending Dec 2025
Own name 42,000 0.81% ¥2,227 ¥93.5M ¥4.7M
GMO TECH Holdings, Inc.
415A · FY ending Dec 2025
Own name 14,000 0.89% ¥4,682 ¥65.5M ¥3.5M

By year

YearNet worthListed sharesPayDividendsTotal incomeTaxes (est.)After tax (est.)Share sales (after tax)
2025partial¥631M¥595M—¥17.9M¥17.9M¥3.6M¥14.2M—
2024¥458M¥436M—¥15.7M¥15.7M¥3.2M¥12.5M—
2023¥297M¥288M—¥7.4M¥7.4M¥1.5M¥5.9M—
2022¥115M¥111M—¥3.2M¥3.2M¥657,111¥2.6M—
2021¥125M¥124M—¥1.3M¥1.3M¥268,526¥1.0M—

"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 ¥631M = listed shares in own name ¥595M + other assets (est.) ¥36.3M

Total inheritance tax paid: ¥93.4M (14.8% of the estate).

HeirInheritsTaxAfter tax
Spouse¥315M¥0¥315M
Each child¥158M¥46.7M¥111M

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