StockDriftsStockDriftsS Science Company, Ltd. (5721) has 13 disclosed large-shareholding filings and 36 disclosed disposals on record, filed by 9 distinct investors. Together those filings cover ¥19.9B ($128.7M) in reported transaction value. The earliest filing StockDrifts holds for S Science Company, Ltd. is dated 2021-04-05; the most recent is 2026-03-05. Across these filings the average return since disclosure is +64.57%, measured from each filing date to the latest available close.
| Date | Type | Source | Insider | Purpose | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2026-07-06 | BUY | Market Buy | フィリップ証券株式会社 Phillip Securities Japan,Ltd. | passive | 0 | ¥64 | - | ¥817M ($5.3M) |
| 2026-07-06 | SELL | Market Buy | フィリップ証券株式会社 Phillip Securities Japan,Ltd. | passive | 13.6M | ¥64 | +15.6% | ¥10M ($66K) |
| 2026-03-05 | BUY | Market Buy | フィリップ証券株式会社 Phillip Securities Japan,Ltd. | passive | 13.6M | ¥115 | - | ¥1.4B ($9.3M) |
| 2026-03-05 | BUY | Market Buy | フィリップ証券株式会社 Phillip Securities Japan,Ltd. | passive | 13.6M | ¥115 | - | ¥1.4B ($9.3M) |
| 2026-03-04 | BUY | Market Buy | フィリップ証券株式会社 Phillip Securities Japan,Ltd. | passive | 13.6M | ¥111 | -51.4% | ¥1.4B ($9.0M) |
| 2026-03-04 | BUY | Market Buy | フィリップ証券株式会社 Phillip Securities Japan,Ltd. | passive | 13.6M | ¥111 | - | ¥1.4B ($9.0M) |
| 2026-01-26 | SELL | unknown | KAY LEO BROTHERS LIMITED JAPAN株式会社 | other | 0 | ¥135 | +60.0% | ¥1.3B ($8.1M) |
| 2026-01-26 | BUY | unknown | ケイ レオ ブラザーズ リミテッド KAY LEO BROTHERS LIMITED | other | 26.8M | ¥135 | -60.0% | ¥1.1B ($7.4M) |
| 2026-01-14 | SELL | unknown | ケイ レオ ブラザーズ リミテッド KAY LEO BROTHERS LIMITED | other | 17.5M | ¥185 | +70.8% | ¥2.5B ($16.3M) |
| 2026-01-14 | BUY | unknown | KAY LEO BROTHERS LIMITED JAPAN株式会社 | other | 9.3M | ¥185 | - | ¥1.7B ($11.1M) |
| 2026-01-14 | SELL | unknown | ケイ レオ ブラザーズ リミテッド KAY LEO BROTHERS LIMITED | other | 17.5M | ¥185 | +70.8% | ¥2.5B ($16.3M) |
| 2026-01-14 | BUY | unknown | KAY LEO BROTHERS LIMITED JAPAN株式会社 | other | 9.3M | ¥185 | - | ¥1.7B ($11.1M) |
| 2026-01-14 | SELL | unknown | ケイ レオ ブラザーズ リミテッド KAY LEO BROTHERS LIMITED | other | 17.5M | ¥185 | +70.8% | ¥2.5B ($16.3M) |
| 2026-01-14 | BUY | unknown | KAY LEO BROTHERS LIMITED JAPAN株式会社 | other | 9.3M | ¥185 | - | ¥1.7B ($11.1M) |
| 2025-11-21 | SELL | Market Buy | ロング コリドー アセット マネジメント リミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited | passive | 6.5M | ¥116 | +53.5% | ¥264M ($1.7M) |
| 2025-11-12 | SELL | Market Buy | ロング コリドー アセット マネジメント リミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited | passive | 8.8M | ¥146 | +63.0% | ¥288M ($1.9M) |
| 2025-11-04 | SELL | Market Buy | ロング コリドー アセット マネジメント リミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited | passive | 10.8M | ¥133 | +59.4% | ¥228M ($1.5M) |
| 2025-10-31 | SELL | Market Buy | ロング コリドー アセット マネジメント リミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited | passive | 12.7M | ¥144 | +62.5% | ¥688M ($4.4M) |
| 2025-10-31 | BUY | Market Buy | ロング コリドー アセット マネジメント リミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited | passive | 12.6M | ¥144 | - | ¥698M ($4.5M) |
| 2025-10-16 | SELL | Market Buy | ロング コリドー アセット マネジメント リミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited | passive | 17.5M | ¥140 | +61.4% | ¥233M ($1.5M) |
| 2025-10-14 | BUY | Market Buy | ロング コリドー アセット マネジメント リミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited | passive | 19.3M | ¥155 | - | - |
| 2025-09-30 | SELL | Market Buy | ロング コリドー アセット マネジメント リミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited | passive | 19.3M | ¥199 | +72.9% | ¥886M ($5.7M) |
| 2025-09-12 | BUY | Market Buy | ロング コリドー アセット マネジメント リミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited | passive | 24.3M | ¥289 | - | ¥1.4B ($8.7M) |
| 2025-09-12 | SELL | Market Buy | ロング コリドー アセット マネジメント リミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited | passive | 24.3M | ¥289 | +81.3% | ¥1.4B ($8.7M) |
| 2025-09-11 | BUY | unknown | ケイ レオ ブラザーズ リミテッド(KAY LEO BROTHERS LIMITED) KAY LEO BROTHERS LIMITED | other | 26.8M | ¥289 | - | ¥4.2B ($27.1M) |
| 2025-09-11 | BUY | unknown | ケイ レオ ブラザーズ リミテッド(KAY LEO BROTHERS LIMITED) KAY LEO BROTHERS LIMITED | other | 9.3M | ¥289 | - | ¥4.2B ($27.1M) |
| 2025-09-11 | BUY | Market Buy | ケイ レオ ブラザーズ リミテッド(KAY LEO BROTHERS LIMITED) KAY LEO BROTHERS LIMITED | other | 9.3M | ¥289 | -81.3% | ¥4.2B ($27.1M) |
| 2025-09-10 | SELL | Market Buy | ロング コリドー アセット マネジメント リミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited | passive | 29.6M | ¥311 | +82.6% | ¥635M ($4.1M) |
| 2025-09-10 | SELL | Market Buy | ロング コリドー アセット マネジメント リミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited | passive | 31.9M | ¥311 | +82.6% | ¥441M ($2.8M) |
| 2025-09-09 | BUY | unknown | ケイ レオ ブラザーズ リミテッド(KAY LEO BROTHERS LIMITED) KAY LEO BROTHERS LIMITED | other | 9.3M | ¥311 | - | - |
| 2025-09-09 | BUY | Market Buy | ケイ レオ ブラザーズ リミテッド(KAY LEO BROTHERS LIMITED) KAY LEO BROTHERS LIMITED | other | 9.3M | ¥311 | -82.6% | ¥4.5B ($29.2M) |
| 2025-09-08 | BUY | Market Buy | ロング コリドー アセット マネジメント リミテッド(Long Corridor Asset Management Limited) Long Corridor Asset Management Limited | passive | 33.5M | ¥263 | -79.5% | ¥8.8B ($56.8M) |
| 2025-06-16 | SELL | Market Buy | 株式会社グローバルエナジー GlobalEnergy Co., Ltd. | passive | 2.9M | ¥342 | +84.2% | ¥2.2B ($14.2M) |
| 2025-05-07 | SELL | Market Buy | 株式会社ミュージックコーポレーション MUSIC CORPORATION CO., LTD. | passive | 3.6M | ¥70 | +22.9% | ¥617M ($4.0M) |
| 2025-05-01 | BUY | Market Buy | 株式会社グローバルエナジー GlobalEnergy Co., Ltd. | passive | 9.3M | ¥68 | -20.6% | ¥634M ($4.1M) |
| 2025-05-01 | BUY | Market Buy | 株式会社ミュージックコーポレーション MUSIC COPORATION CO.,LTD. | passive | 12.4M | ¥68 | -20.6% | ¥845M ($5.5M) |
| 2025-05-01 | SELL | unknown | ケイ レオ ブラザーズ リミテッド(KAY LEO BROTHERS LIMITED) KAY LEO BROTHERS LIMITED | other | 9.3M | ¥68 | +20.6% | ¥1.5B ($9.5M) |
| 2025-05-01 | BUY | unknown | ケイ レオ ブラザーズ リミテッド(KAY LEO BROTHERS LIMITED) KAY LEO BROTHERS LIMITED | other | 9.3M | ¥68 | - | ¥1.5B ($9.5M) |
| 2025-04-07 | BUY | unknown | ケイ レオ ブラザーズ リミテッド(KAY LEO BROTHERS LIMITED) KAY LEO BROTHERS LIMITED | other | 31.1M | ¥72 | -25.0% | ¥2.2B ($14.4M) |
| 2025-04-07 | BUY | unknown | ケイ レオ ブラザーズ リミテッド(KAY LEO BROTHERS LIMITED) KAY LEO BROTHERS LIMITED | other | 31.1M | ¥72 | - | ¥2.2B ($14.4M) |
| 2025-03-12 | SELL | unknown | 株式会社エルアイイーエイチ Life Intelligent Enterprise Holdings Co.,Ltd. | unknown | 0 | ¥26 | -107.7% | ¥807M ($5.2M) |
| 2025-03-12 | BUY | unknown | 株式会社エルアイイーエイチ Life Intelligent Enterprise Holdings Co.,Ltd. | unknown | 0 | ¥26 | - | ¥857M ($5.5M) |
| 2022-07-04 | BUY | negotiated | 株式会社エルアイイーエイチ Life Intelligent Enterprise Holdings Co.,Ltd. | strategic | 31.1M | ¥28 | - | - |
| 2022-07-04 | BUY | negotiated | 株式会社エルアイイーエイチ Life Intelligent Enterprise Holdings Co.,Ltd. | strategic | 31.1M | ¥28 | - | - |
| 2022-07-04 | BUY | Market Buy | 株式会社エルアイイーエイチ Life Intelligent Enterprise Holdings Co.,Ltd. | strategic | 31.1M | ¥28 | +92.9% | ¥311M ($2.0M) |
| 2022-01-31 | SELL | private | エボ ファンド Evo Fund | activist | 6.8M | ¥23 | -134.8% | ¥332K ($2K) |
| 2022-01-31 | BUY | private | EVOLUTION JAPANアセットマネジメント株式会社(Evolution Japan Asset Management Co. EVOLUTION JAPAN Asset Management Co., Ltd. | passive | 0 | ¥23 | - | - |
| 2022-01-11 | SELL | private | エボ ファンド Evo Fund | activist | 8.3M | ¥24 | -125.0% | ¥362K ($2K) |
| 2022-01-11 | BUY | private | EVOLUTION JAPANアセットマネジメント株式会社(Evolution Japan Asset Management Co. EVOLUTION JAPAN Asset Management Co., Ltd. | passive | 0 | ¥24 | - | - |
| 2021-12-13 | SELL | private | エボ ファンド Evo Fund | activist | 9.8M | ¥29 | -86.2% | ¥475K ($3K) |
Showing the 50 most recent of 89 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.