StockDriftsStockDriftsAdeka Corporation (4401) has 8 disclosed large-shareholding filings and 7 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥20.3B ($130.9M) in reported transaction value. The earliest filing StockDrifts holds for Adeka Corporation is dated 2022-04-06; the most recent is 2026-03-23. Across these filings the average return since disclosure is +31.23%, measured from each filing date to the latest available close.
| Date | Type | Source | Insider | Purpose | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2026-03-23 | SELL | unknown | アセットマネジメントOne株式会社 | other | 2.8M | ¥3,798 | -22.4% | ¥4.5B ($29.2M) |
| 2026-03-23 | BUY | unknown | 株式会社みずほ銀行 | strategic | 3.8M | ¥3,798 | - | - |
| 2026-03-23 | SELL | unknown | アセットマネジメントOneインターナショナル Asset Management One International Ltd. | other | 2.5K | ¥3,798 | -22.4% | ¥709M ($4.6M) |
| 2025-12-05 | BUY | Market Buy | 三井住友DSアセットマネジメント株式会社 | passive | 5.0M | ¥3,600 | +29.2% | ¥18.0B ($116.0M) |
| 2025-12-05 | BUY | Market Buy | 株式会社 三井住友銀行 | other | 210.0K | ¥3,600 | +29.2% | ¥756M ($4.9M) |
| 2025-11-07 | BUY | negotiated | 三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd. | other | 1.9M | ¥3,534 | +31.6% | ¥6.8B ($44.1M) |
| 2025-11-07 | BUY | negotiated | アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd. | other | 2.1M | ¥3,534 | +31.6% | ¥7.3B ($47.2M) |
| 2025-11-07 | BUY | negotiated | 三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited | strategic | 1.2M | ¥3,534 | +31.6% | ¥4.2B ($27.4M) |
| 2025-09-04 | BUY | negotiated | 三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited | strategic | 1.2M | ¥3,358 | - | - |
| 2025-09-04 | SELL | negotiated | 三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd. | other | 1.9M | ¥3,358 | -38.5% | ¥1.8B ($11.5M) |
| 2025-09-04 | SELL | negotiated | 日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd. | other | 2.0M | ¥3,358 | -38.5% | ¥2.2B ($14.2M) |
| 2024-07-22 | BUY | unknown | 株式会社みずほ銀行 Mizuho Bank, Ltd. | strategic | 3.8M | ¥3,180 | - | - |
| 2024-07-22 | BUY | unknown | アセットマネジメントOneインターナショナル Asset Management One International Ltd. | other | 191.1K | ¥3,180 | - | ¥608M ($3.9M) |
| 2024-07-22 | SELL | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 3.9M | ¥3,180 | -46.2% | ¥3.9B ($24.9M) |
| 2023-06-21 | BUY | negotiated | 三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited | strategic | 1.2M | ¥2,548 | - | - |
| 2023-06-21 | SELL | negotiated | 三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd. | other | 2.5M | ¥2,548 | -82.5% | ¥1.6B ($10.6M) |
| 2023-06-21 | BUY | negotiated | 日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd. | other | 2.7M | ¥2,548 | +82.5% | ¥1.7B ($10.9M) |
| 2023-02-22 | BUY | unknown | 株式会社みずほ銀行 Mizuho Bank, Ltd. | strategic | 3.8M | ¥2,125 | - | - |
| 2023-02-22 | SELL | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 5.2M | ¥2,125 | -118.8% | ¥1.8B ($11.8M) |
| 2023-02-22 | BUY | unknown | アセットマネジメントOneインターナショナル Asset Management One International Ltd. | other | 5.2K | ¥2,125 | +118.8% | ¥1.8B ($11.4M) |
| 2022-04-06 | BUY | unknown | 野村證券株式会社 Nomura Securities Co.,Ltd. | other | 117.1K | ¥2,621 | - | ¥307M ($2.0M) |
| 2022-04-06 | BUY | unknown | 野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd. | other | 4.5M | ¥2,621 | +77.4% | ¥11.8B ($75.9M) |
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.