Shigeru Ishizaka

Shigeru Ishizaka (major shareholder) discloses dealings in 2 companies, chiefly 株式会社IBJ and 石坂 茂. In total, 29 filings cover trades dated from 8 October 2021 to 2 September 2026.

In open-market terms, that means 2 purchases on one side and 12 sales on the other. No amount is published for 14 filings, which the totals therefore leave out. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. 2026 to date brings no purchases and 12 sales.

The record was last updated on 25 September 2026 with an open-market sale in 株式会社IBJ. The clock since the last published purchase (15 April 2024) now reads 922 days. The median gap between a trade and its publication by EDINET (Japan FSA) is 29 days. Until a filing is published, the market cannot know about the trade. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. This summary is built from EDINET (Japan FSA) disclosures alone and does not predict where the share price will go.