Kohsoku Kosan

Kohsoku Kosan is a declared insider at 2 companies (major shareholder); the most frequent names are 株式会社高速 and 高速興産株式会社. Between 1 July 2021 and 18 February 2025, the trades on record add up to 13 filings.

None of the filings is a plain purchase or sale on the open market; they cover grants, option exercises and other movements. Grants and option exercises follow pay plans set in advance, so they reveal less about an insider's own view than a purchase made with personal money.

Most recently, on 21 February 2025, the filings show a transaction in 株式会社高速. Between a trade and the moment it shows up on EDINET (Japan FSA), the median delay is 3 days. Until a filing is published, the market cannot know about the trade. Source: insider filings from EDINET (Japan FSA). Past trades are no guide to future returns.