本州化学工業株式会社 (4115) has 2 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 2 distinct investors. The earliest filing StockDrifts holds for 本州化学工業株式会社 is dated 2021-06-14; the most recent is 2021-06-14.
| Date | Type | Source | Insider | Purpose | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2021-06-14 | BUY | Market Buy | 三井物産株式会社 Mitsui & Co., LTD. | activist | 4.0M | - | - | - |
| 2021-06-14 | BUY | Market Buy | 三井化学株式会社 Mitsui Chemicals, Inc. | activist | 5.7M | - | - | - |
Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.