Masaki Shoji Co., Ltd. Representative DIrector Shiro Yamada

This profile gathers the share dealings of Masaki Shoji Co., Ltd. Representative DIrector Shiro Yamada in 川口化学工業株式会社. Between 18 December 2024 and 22 May 2026, the trades on record add up to 11 filings.

None of the filings is a plain purchase or sale on the open market; they cover grants, option exercises and other movements. Because grants and exercises are largely decided by remuneration plans, they are not counted as purchases here.

The latest filing, published on 1 June 2026, reports a transaction in 川口化学工業株式会社. Typically, a trade is published a median of 10 days after it takes place. This delay matters because a trade only becomes useful information once it is public. These figures are compiled from regulatory filings published by EDINET (Japan FSA). They describe what insiders did and are not a recommendation.