Sigma corporation

Sigma corporation is a declared insider at 2 companies; the most frequent names are 昭和化学工業株式会社 and シグマ株式会社. In total, 5 filings cover trades dated from 14 July 2021 to 26 October 2026.

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.

The newest entry dates from 28 October 2026: a transaction, in 昭和化学工業株式会社. The median gap between a trade and its publication by EDINET (Japan FSA) is 2 days. Until a filing is published, the market cannot know about the trade. This summary is built from EDINET (Japan FSA) disclosures alone and does not predict where the share price will go.