StockDriftsStockDriftsinspec Inc. (6656) has 7 disclosed large-shareholding filings and 14 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥2.9B ($19.0M) in reported transaction value. The earliest filing StockDrifts holds for inspec Inc. is dated 2021-04-14; the most recent is 2026-04-14. Across these filings the average return since disclosure is -42.59%, measured from each filing date to the latest available close.
| Date | Type | Source | Insider | Purpose | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2026-08-25 | BUY | private | キャンター フィッツジェラルド ヨーロッパ(Cantor Fitzgerald Europe) Cantor Fitzgerald Europe | passive | 2.4M | ¥821 | -5.1% | ¥1.9B ($12.5M) |
| 2026-07-22 | BUY | Market Buy | シルバーケイプ・インベストメンツ・リミテッド(SilverCape Investments Limited) SilverCape Investments Limited | other | 391.2K | ¥1,094 | -28.8% | ¥50M ($326K) |
| 2026-07-09 | BUY | Market Buy | シルバーケイプ・インベストメンツ・リミテッド(SilverCape Investments Limited) SilverCape Investments Limited | other | 345.0K | ¥1,210 | -35.6% | ¥57M ($370K) |
| 2026-07-02 | BUY | Market Buy | シルバーケイプ・インベストメンツ・リミテッド(SilverCape Investments Limited) SilverCape Investments Limited | other | 297.7K | ¥1,202 | -35.2% | ¥56M ($364K) |
| 2026-06-30 | BUY | Market Buy | シルバーケイプ・インベストメンツ・リミテッド(SilverCape Investments Limited) SilverCape Investments Limited | other | 250.8K | ¥1,208 | -35.5% | ¥60M ($388K) |
| 2026-06-15 | BUY | unknown | シルバーケイプ・インベストメンツ・リミテッド(SilverCape Investments Limited) SilverCape Investments Limited | other | 201.1K | ¥1,122 | -30.6% | ¥226M ($1.5M) |
| 2026-04-14 | SELL | negotiated | 菅原 雅史 | activist | 194.3K | ¥619 | -25.9% | ¥62M ($401K) |
| 2026-04-14 | BUY | negotiated | 菅原 美樹 | activist | 4.0K | ¥619 | - | - |
| 2026-04-14 | SELL | Market Buy | ハヤテマネジメント株式会社 Hayate Management | activist | 0 | ¥619 | -25.9% | ¥234M ($1.5M) |
| 2025-06-25 | SELL | negotiated | 菅原 雅史 Masashi Sugawara | activist | 300.9K | ¥675 | -15.4% | ¥33M ($215K) |
| 2025-06-25 | BUY | negotiated | 菅原 美樹 Miki Sugawara | activist | 4.0K | ¥675 | - | - |
| 2025-06-25 | BUY | negotiated | 菅原 美樹 Miki Sugawara | activist | 4.0K | ¥675 | - | - |
| 2025-06-25 | SELL | negotiated | 菅原 雅史 Masashi Sugawara | activist | 300.9K | ¥675 | -15.4% | ¥33M ($215K) |
| 2025-04-18 | BUY | Market Buy | ハヤテマネジメント株式会社 Hayate Management | activist | 416.5K | ¥579 | +34.5% | ¥241M ($1.6M) |
| 2025-04-18 | SELL | Market Buy | ハヤテインベストメント株式会社 Hayate Investment | activist | 0 | ¥579 | -34.5% | ¥219M ($1.4M) |
| 2025-03-27 | SELL | negotiated | 菅原 雅史 Masashi Sugawara | activist | 351.1K | ¥590 | -32.0% | ¥27M ($175K) |
| 2025-03-27 | SELL | negotiated | 菅原 雅史 Masashi Sugawara | activist | 351.1K | ¥590 | -32.0% | ¥27M ($175K) |
| 2025-03-27 | BUY | negotiated | 菅原 美樹 Miki Sugawara | activist | 4.0K | ¥590 | - | - |
| 2025-03-27 | BUY | negotiated | 菅原 美樹 Miki Sugawara | activist | 4.0K | ¥590 | - | - |
| 2024-04-26 | BUY | Market Buy | ハヤテインベストメント株式会社 Hayate Investment | activist | 420.4K | ¥962 | - | ¥366M ($2.4M) |
| 2024-04-26 | BUY | Market Buy | ハヤテインベストメント株式会社 Hayate Investment | activist | 420.4K | ¥962 | -19.0% | ¥366M ($2.4M) |
| 2024-04-26 | SELL | Market Buy | ハヤテパートナーズ ピーティーイー エルティーディー(HAYATE PARTNERS PTE LTD) HAYATE PARTNERS PTE LTD | activist | 0 | ¥962 | +19.0% | ¥368M ($2.4M) |
| 2024-04-26 | BUY | Market Buy | ハヤテインベストメント株式会社 Hayate Investment | activist | 416.5K | ¥962 | - | ¥363M ($2.3M) |
| 2024-04-26 | BUY | Market Buy | ハヤテパートナーズ ピーティーイー エルティーディー(HAYATE PARTNERS PTE LTD) HAYATE PARTNERS PTE LTD | activist | 0 | ¥962 | - | ¥368M ($2.4M) |
| 2023-01-30 | SELL | negotiated | 菅原 美樹 Miki Sugawara | activist | 4.0K | ¥1,019 | +23.6% | ¥406K ($3K) |
| 2023-01-30 | BUY | negotiated | 菅原 雅史 Masashi Sugawara | activist | 397.4K | ¥1,019 | -23.6% | ¥388M ($2.5M) |
| 2023-01-30 | SELL | negotiated | 菅原 美樹 Miki Sugawara | activist | 4.0K | ¥1,019 | +23.6% | ¥406K ($3K) |
| 2023-01-30 | BUY | negotiated | 菅原 雅史 Masashi Sugawara | activist | 397.4K | ¥1,019 | -23.6% | ¥388M ($2.5M) |
| 2022-08-24 | SELL | Market Buy | ハヤテパートナーズ ピーティーイー エルティーディー(HAYATE PARTNERS PTE LTD) HAYATE PARTNERS PTE LTD | activist | 420.4K | ¥1,364 | +42.9% | ¥63M ($406K) |
| 2022-08-08 | SELL | Market Buy | ハヤテパートナーズ ピーティーイー エルティーディー(HAYATE PARTNERS PTE LTD) HAYATE PARTNERS PTE LTD | activist | 471.4K | ¥1,239 | +37.1% | ¥50M ($320K) |
| 2022-06-15 | SELL | Market Buy | ハヤテパートナーズ ピーティーイー エルティーディー(HAYATE PARTNERS PTE LTD) HAYATE PARTNERS PTE LTD | activist | 516.2K | ¥1,327 | +41.3% | ¥54M ($345K) |
| 2022-06-08 | SELL | Market Buy | ハヤテパートナーズ ピーティーイー エルティーディー(HAYATE PARTNERS PTE LTD) HAYATE PARTNERS PTE LTD | activist | 561.6K | ¥1,635 | +52.4% | ¥63M ($404K) |
| 2021-04-15 | BUY | negotiated | 菅原 雅史 Masashi Sugawara | activist | 383.7K | ¥2,082 | -62.6% | ¥140M ($906K) |
| 2021-04-15 | BUY | Market Buy | 菅原 雅史 Masashi Sugawara | activist | 383.7K | ¥2,082 | -62.6% | ¥140M ($906K) |
| 2021-04-15 | BUY | Market Buy | 菅原 美樹 Miki Sugawara | activist | 4.0K | ¥2,082 | - | - |
| 2021-04-15 | BUY | negotiated | 菅原 美樹 Miki Sugawara | activist | 4.0K | ¥2,082 | - | - |
| 2021-04-14 | BUY | Market Buy | ハヤテパートナーズ ピーティーイー エルティーディー(HAYATE PARTNERS PTE LTD) HAYATE PARTNERS PTE LTD | activist | 605.8K | ¥2,110 | -63.1% | ¥1.3B ($8.2M) |
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.