Sinoken Group Takes 35.12% Stake in Propastone (3236) | Large Shareholding Report

A large shareholding report (EDINET filing) reveals that Sinoken Group has raised its stake in Propastone (3236) to 35.12%. Sinoken Group is a major Japanese construction and real estate company focused on property development and sales. With over 35% of Propastone's market capitalization, Sinoken Group has established itself as the company's largest shareholder.

At the time of disclosure on April 2, 2026, Propastone shares were trading at ¥344. Sinoken Group's estimated acquisition amount reached ¥3.92 billion. Notably, no filings from the same investor regarding this stock were identified within the preceding 400 days, suggesting that this represents either a fresh investment or a substantial resumption of holdings. This indicates that Sinoken Group has decided to make a large-scale reinvestment in Propastone following a period of absence from the shareholding register.