StockDriftsStockDriftsFujikura Kasei Co., Ltd. (4620) has 45 disclosed large-shareholding filings and 22 disclosed disposals on record, filed by 11 distinct investors. Together those filings cover ¥7.4B ($47.9M) in reported transaction value. The earliest filing StockDrifts holds for Fujikura Kasei Co., Ltd. is dated 2022-06-21; the most recent is 2026-05-12. Across these filings the average return since disclosure is +101.24%, measured from each filing date to the latest available close.
| Date | Type | Source | Insider | Purpose | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2026-06-18 | BUY | unknown | 株式会社DOE5パーセント | activist | 1.2M | ¥1,138 | - | - |
| 2026-06-18 | BUY | unknown | 植島 幹九郎 | activist | 688.5K | ¥1,138 | - | - |
| 2026-06-18 | BUY | unknown | 株式会社ナチュラリ | activist | 938.9K | ¥1,138 | - | - |
| 2026-06-18 | BUY | Market Buy | 株式会社ドリームキャリアホールディングス | activist | 385.3K | ¥1,138 | -4.0% | ¥7M ($45K) |
| 2026-06-18 | BUY | unknown | 株式会社UESHIMA | activist | 2.5K | ¥1,138 | - | - |
| 2026-06-17 | BUY | unknown | 植島 幹九郎 | activist | 688.5K | ¥1,118 | - | - |
| 2026-06-17 | SELL | unknown | 株式会社ナチュラリ | activist | 938.9K | ¥1,118 | +2.2% | ¥286M ($1.8M) |
| 2026-06-17 | BUY | Market Buy | 株式会社ドリームキャリアホールディングス | activist | 380.9K | ¥1,118 | -2.2% | ¥355M ($2.3M) |
| 2026-06-17 | BUY | Market Buy | 株式会社UESHIMA | activist | 2.5K | ¥1,118 | -2.2% | ¥3M ($22K) |
| 2026-06-17 | BUY | unknown | 株式会社DOE5パーセント | activist | 1.2M | ¥1,118 | - | - |
| 2026-05-26 | BUY | Market Buy | 株式会社DOE5パーセント | activist | 1.2M | ¥1,021 | +7.0% | ¥964M ($6.2M) |
| 2026-05-26 | SELL | unknown | 植島 幹九郎 | activist | 688.5K | ¥1,021 | -7.0% | ¥954M ($6.2M) |
| 2026-05-26 | BUY | Market Buy | 株式会社ナチュラリ | activist | 1.2M | ¥1,021 | +7.0% | ¥135M ($874K) |
| 2026-05-26 | BUY | unknown | 株式会社ドリームキャリアホールディングス | activist | 61.7K | ¥1,021 | - | - |
| 2026-05-12 | BUY | Market Buy | 株式会社ナチュラリ | activist | 1.1M | ¥1,174 | -6.9% | ¥355M ($2.3M) |
| 2026-05-12 | BUY | unknown | 株式会社ドリームキャリアホールディングス | activist | 61.7K | ¥1,174 | - | - |
| 2026-05-12 | BUY | unknown | 株式会社DOE5パーセント | activist | 229.5K | ¥1,174 | - | - |
| 2026-05-12 | BUY | Market Buy | 植島 幹九郎 | activist | 1.6M | ¥1,174 | -6.9% | ¥18M ($117K) |
| 2026-04-17 | BUY | unknown | 株式会社ナチュラリ | activist | 760.4K | ¥1,244 | -12.1% | ¥384M ($2.5M) |
| 2026-04-17 | BUY | unknown | 株式会社DOE5パーセント | activist | 229.5K | ¥1,244 | -12.1% | ¥42M ($272K) |
| 2026-04-17 | BUY | unknown | 植島 幹九郎 | activist | 1.6M | ¥1,244 | - | - |
| 2026-04-17 | BUY | unknown | 株式会社ドリームキャリアホールディングス | activist | 61.7K | ¥1,244 | - | - |
| 2026-04-08 | BUY | Market Buy | 株式会社DOE5パーセント | activist | 194.5K | ¥1,189 | -8.1% | ¥26M ($166K) |
| 2026-04-08 | BUY | Market Buy | 植島 幹九郎 | activist | 1.6M | ¥1,189 | -8.1% | ¥242M ($1.6M) |
| 2026-04-08 | BUY | Market Buy | 株式会社ナチュラリ | activist | 451.7K | ¥1,189 | -8.1% | ¥176M ($1.1M) |
| 2026-04-08 | BUY | Market Buy | 株式会社ドリームキャリアホールディングス | activist | 61.7K | ¥1,189 | -8.1% | ¥4M ($24K) |
| 2026-04-02 | BUY | Market Buy | 株式会社DOE5パーセント | activist | 171.7K | ¥1,194 | -8.5% | ¥206M ($1.3M) |
| 2026-04-02 | BUY | Market Buy | 植島 幹九郎 | activist | 1.4M | ¥1,194 | -8.5% | ¥88M ($570K) |
| 2026-04-02 | BUY | Market Buy | 株式会社ナチュラリ | activist | 303.3K | ¥1,194 | -8.5% | ¥107M ($689K) |
| 2026-04-02 | BUY | Market Buy | 株式会社ドリームキャリアホールディングス | activist | 57.8K | ¥1,194 | -8.5% | ¥70M ($452K) |
| 2026-03-13 | BUY | unknown | 植島 幹九郎 | activist | 1.3M | ¥1,115 | -2.0% | ¥1.5B ($9.6M) |
| 2026-03-13 | BUY | unknown | 株式会社ナチュラリ | activist | 213.9K | ¥1,115 | -2.0% | ¥237M ($1.5M) |
| 2025-09-19 | SELL | negotiated | 三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited | strategic | 286.0K | ¥628 | -74.0% | ¥401M ($2.6M) |
| 2025-09-19 | 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 | 631.3K | ¥628 | -74.0% | ¥4M ($25K) |
| 2025-09-19 | SELL | 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 | 453.4K | ¥628 | -74.0% | ¥12M ($75K) |
| 2025-08-21 | BUY | Market Buy | 三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited | strategic | 926.0K | ¥610 | +79.2% | ¥256M ($1.7M) |
| 2025-08-21 | SELL | Market Buy | 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 | 638.3K | ¥610 | -79.2% | ¥2M ($12K) |
| 2025-08-21 | BUY | Market Buy | 日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd. | other | 470.7K | ¥610 | +79.2% | ¥15M ($97K) |
| 2025-07-22 | BUY | negotiated | 三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited | strategic | 506.0K | ¥551 | +98.4% | ¥279M ($1.8M) |
| 2025-07-22 | 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 | 640.6K | ¥551 | +98.4% | ¥353M ($2.3M) |
| 2025-07-22 | BUY | negotiated | 日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd. | other | 447.9K | ¥551 | +98.4% | ¥247M ($1.6M) |
| 2024-08-21 | SELL | negotiated | 三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited | strategic | 286.0K | ¥516 | -111.8% | ¥103M ($668K) |
| 2024-08-21 | SELL | negotiated | 日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd. | other | 463.4K | ¥516 | -111.8% | ¥30M ($195K) |
| 2024-08-21 | 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 | 593.4K | ¥516 | +111.8% | ¥2M ($10K) |
| 2024-07-19 | BUY | negotiated | 日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd. | other | 520.0K | ¥544 | +100.9% | ¥283M ($1.8M) |
| 2024-07-19 | BUY | unknown | 野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd. | other | 1.4M | ¥544 | +100.9% | ¥777M ($5.0M) |
| 2024-07-19 | BUY | unknown | 野村證券株式会社 Nomura Securities Co.,Ltd. | other | 53.2K | ¥544 | - | - |
| 2024-07-19 | BUY | negotiated | 三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited | strategic | 486.0K | ¥544 | +100.9% | ¥264M ($1.7M) |
| 2024-07-19 | 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 | 588.3K | ¥544 | +100.9% | ¥320M ($2.1M) |
| 2024-07-19 | BUY | unknown | ノムラ インターナショナル ピーエルシー NOMURA INTERNATIONAL PLC | other | 10.9K | ¥544 | +100.9% | ¥649M ($4.2M) |
Showing the 50 most recent of 90 filings.
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.