Biken Techno Corporation (9791) has 3 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥1.4B ($8.8M) in reported transaction value. The earliest filing StockDrifts holds for Biken Techno Corporation is dated 2022-01-07; the most recent is 2025-12-04. Across these filings the average return since disclosure is +21.25%, measured from each filing date to the latest available close.
| Date | Type | Source | Insider | Purpose | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2025-12-04 | BUY | Market Buy | 梶山 高志 | other | 17.2K | ¥1,309 | - | - |
| 2025-12-04 | BUY | Market Buy | 株式会社東洋商事 | other | 2.1M | ¥1,309 | - | - |
| 2025-12-04 | BUY | Market Buy | 梶山 わか子 | strategic | 1.0M | ¥1,309 | -9.6% | ¥101M ($652K) |
| 2025-12-04 | BUY | Market Buy | 梶山 博信 | other | 29.4K | ¥1,309 | - | - |
| 2024-01-10 | BUY | unknown | 株式会社東洋商事 Toyo Shoji Co., Ltd. | other | 2.1M | ¥1,132 | - | - |
| 2024-01-10 | BUY | unknown | 梶山 高志 Takashi Kajiyama | other | 17.2K | ¥1,132 | - | - |
| 2024-01-10 | BUY | unknown | 梶山 わか子 Wakako Kajiyama | strategic | 945.3K | ¥1,132 | +4.6% | ¥882K ($6K) |
| 2024-01-10 | BUY | unknown | 梶山 博信 Hironobu Kajiyama | other | 29.4K | ¥1,132 | - | - |
| 2022-01-07 | BUY | unknown | 梶山 博信 Hironobu Kajiyama | other | 29.4K | ¥916 | - | - |
| 2022-01-07 | BUY | unknown | 梶山 高志 Takashi Kajiyama | other | 17.2K | ¥916 | - | - |
| 2022-01-07 | BUY | unknown | 株式会社東洋商事 Toyo Shoji Co., Ltd. | other | 2.1M | ¥916 | - | - |
| 2022-01-07 | BUY | unknown | 梶山 わか子 Wakako Kajiyama | strategic | 867.4K | ¥916 | +29.3% | ¥742K ($5K) |
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.