Masaki Yamamoto山本 正喜

Representative Director, CEO, kubell Co.,Ltd.

Net worth (est.)
¥8.5B
#474 in Japan
Listed shares · incl. ¥7.9B via asset-management cos.
Executive pay
¥39.6Mest.
Average for the same officer category
Dividends (a year)
¥0
Total income (est.)
¥39.6M
#3576
Pay + dividends, before tax
Taxes (est.)
¥15.3M
#3153
Income tax ¥11.7M / resident tax ¥3.6M
Other assets (est.)
¥57.4M
¥8.6B with shares
After-tax income 2023–2025, 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.

Asset-management companies: 株式会社Fun&Creativeest., Fun&Creative Co., Ltd.est. (their holdings are included in net worth)

Holdings

CompanyHeld bySharesStakePriceValueDividends
kubell Co.,Ltd.
4448 · FY ending Dec 2025
Fun&Creative Co., Ltd. 20,530,400 48.82% ¥383 ¥7.9B —
kubell Co.,Ltd.
4448 · FY ending Dec 2025 · Representative Director, CEO
Own name 1,781,651 4.24% ¥383 ¥682M —

By year

YearNet worthPayDividendsTotal incomeTaxes (est.)After tax (est.)Share sales (after tax)
2025¥8.5B¥39.6M¥0¥39.6M¥15.3M¥22.3M—
2024¥8.5B¥40.7M¥0¥40.7M¥15.8M¥22.9M—
2023¥8.4B¥18.9M¥0¥18.9M¥4.8M¥12.2M—

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.

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