StockDriftsStockDriftsTOKYO BASE Co.,Ltd. (3415) has 25 disclosed large-shareholding filings and 61 disclosed disposals on record, filed by 14 distinct investors. Together those filings cover ¥5.5B ($35.5M) in reported transaction value. The earliest filing StockDrifts holds for TOKYO BASE Co.,Ltd. is dated 2021-05-12; the most recent is 2026-04-22. Across these filings the average return since disclosure is +28.40%, measured from each filing date to the latest available close.
| Date | Type | Source | Insider | Purpose | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2026-06-22 | BUY | Market Buy | 三井住友DSアセットマネジメント株式会社 | passive | 2.2M | ¥355 | +0.3% | ¥767M ($4.9M) |
| 2026-06-22 | BUY | unknown | SMBC日興証券株式会社 | other | 318.1K | ¥355 | +0.3% | ¥113M ($729K) |
| 2026-05-22 | SELL | unknown | ゴールドマン・サックス・インターナショナル(Goldman Sachs International) Goldman Sachs International | other | 1.9M | ¥371 | +4.0% | ¥271M ($1.7M) |
| 2026-05-21 | SELL | unknown | ノムラ インターナショナル ピーエルシー NOMURA INTERNATIONAL PLC | other | 231.1K | ¥366 | +2.7% | ¥196M ($1.3M) |
| 2026-05-21 | BUY | Market Buy | 野村アセットマネジメント株式会社 | other | 1.6M | ¥366 | -2.7% | ¥6M ($42K) |
| 2026-04-22 | BUY | unknown | ゴールドマン・サックス・インターナショナル(Goldman Sachs International) Goldman Sachs International | other | 2.6M | ¥424 | -16.0% | ¥1.1B ($7.1M) |
| 2026-03-19 | BUY | unknown | ノムラ インターナショナル ピーエルシー NOMURA INTERNATIONAL PLC | other | 770.9K | ¥388 | -8.3% | ¥299M ($1.9M) |
| 2026-03-19 | BUY | unknown | 野村アセットマネジメント株式会社 | other | 1.6M | ¥388 | -8.3% | ¥631M ($4.1M) |
| 2026-02-06 | SELL | unknown | 野村證券株式会社 Nomura Securities Co.,Ltd. | other | 1.9M | ¥387 | +8.0% | ¥96M ($618K) |
| 2025-12-11 | SELL | negotiated | 谷 正人 | activist | 12.4M | ¥447 | +20.4% | ¥47M ($301K) |
| 2025-12-11 | SELL | negotiated | 株式会社MT7 | activist | 3.2M | ¥447 | +20.4% | ¥14M ($88K) |
| 2025-12-11 | SELL | negotiated | 株式会社AT7 | activist | 475.0K | ¥447 | +20.4% | ¥2M ($13K) |
| 2025-12-11 | SELL | negotiated | 株式会社KT7 | activist | 475.0K | ¥447 | +20.4% | ¥2M ($13K) |
| 2025-12-09 | SELL | negotiated | 谷 正人 | activist | 12.4M | ¥443 | +19.6% | ¥46M ($298K) |
| 2025-12-09 | SELL | negotiated | 株式会社MT7 | activist | 3.2M | ¥443 | +19.6% | ¥13M ($87K) |
| 2025-12-09 | SELL | negotiated | 株式会社AT7 | activist | 475.0K | ¥443 | +19.6% | ¥2M ($12K) |
| 2025-12-09 | SELL | negotiated | 株式会社KT7 | activist | 475.0K | ¥443 | +19.6% | ¥2M ($12K) |
| 2025-12-09 | SELL | negotiated | 谷 正人 | activist | 12.4M | ¥443 | +19.6% | ¥46M ($298K) |
| 2025-12-09 | SELL | negotiated | 株式会社MT7 | activist | 3.2M | ¥443 | +19.6% | ¥13M ($87K) |
| 2025-12-09 | SELL | negotiated | 株式会社AT7 | activist | 475.0K | ¥443 | +19.6% | ¥2M ($12K) |
| 2025-12-09 | SELL | negotiated | 株式会社KT7 | activist | 475.0K | ¥443 | +19.6% | ¥2M ($12K) |
| 2025-12-05 | BUY | unknown | 野村アセットマネジメント株式会社 | other | 1.6M | ¥460 | -22.6% | ¥738M ($4.8M) |
| 2025-12-05 | BUY | unknown | ノムラ インターナショナル ピーエルシー NOMURA INTERNATIONAL PLC | other | 586.8K | ¥460 | -22.6% | ¥270M ($1.7M) |
| 2025-12-05 | SELL | unknown | ゴールドマン・サックス・インターナショナル(Goldman Sachs International) Goldman Sachs International | other | 1.9M | ¥460 | +22.6% | ¥210M ($1.4M) |
| 2025-10-02 | SELL | Market Buy | Founders Capital株式会社 Founders Capital Co., Ltd. | passive | 477.7K | ¥474 | +24.9% | ¥56M ($359K) |
| 2025-10-02 | SELL | Market Buy | 中水 英紀 HIDEKI NAKAMIZU | passive | 1.5M | ¥474 | +24.9% | ¥157M ($1.0M) |
| 2025-09-05 | BUY | unknown | ゴールドマン・サックス・インターナショナル(Goldman Sachs International) Goldman Sachs International | other | 2.3M | ¥540 | -34.1% | ¥1.3B ($8.1M) |
| 2025-09-04 | SELL | Market Buy | 中水 英紀 HIDEKI NAKAMIZU | passive | 1.8M | ¥523 | +31.9% | ¥236M ($1.5M) |
| 2025-09-04 | SELL | Market Buy | 中水 英紀 HIDEKI NAKAMIZU | passive | 1.8M | ¥523 | +31.9% | ¥236M ($1.5M) |
| 2025-09-04 | SELL | Market Buy | Founders Capital株式会社 Founders Capital Co., Ltd. | passive | 595.3K | ¥523 | +31.9% | ¥18M ($117K) |
| 2025-09-04 | SELL | Market Buy | Founders Capital株式会社 Founders Capital Co., Ltd. | passive | 595.3K | ¥523 | +31.9% | ¥18M ($117K) |
| 2025-08-12 | SELL | Market Buy | 中水 英紀 HIDEKI NAKAMIZU | passive | 2.3M | ¥563 | +36.8% | ¥220M ($1.4M) |
| 2025-08-12 | SELL | Market Buy | Founders Capital株式会社 Founders Capital Co., Ltd. | passive | 628.3K | ¥563 | +36.8% | ¥27M ($174K) |
| 2025-07-31 | SELL | Market Buy | 中水 英紀 HIDEKI NAKAMIZU | passive | 2.7M | ¥487 | +26.9% | ¥95M ($614K) |
| 2025-07-31 | SELL | Market Buy | 中水 英紀 HIDEKI NAKAMIZU | passive | 2.9M | ¥487 | +26.9% | ¥201M ($1.3M) |
| 2025-07-31 | SELL | Market Buy | Founders Capital株式会社 Founders Capital Co., Ltd. | passive | 944.1K | ¥487 | +26.9% | ¥74M ($478K) |
| 2025-07-31 | SELL | Market Buy | Founders Capital株式会社 Founders Capital Co., Ltd. | passive | 678.4K | ¥487 | +26.9% | ¥129M ($833K) |
| 2025-07-23 | SELL | Market Buy | 中水 英紀 HIDEKI NAKAMIZU | passive | 2.7M | ¥465 | +23.4% | ¥91M ($587K) |
| 2025-07-23 | SELL | Market Buy | Founders Capital株式会社 Founders Capital Co., Ltd. | passive | 628.3K | ¥465 | +23.4% | ¥146M ($939K) |
| 2025-06-24 | SELL | Market Buy | 中水 英紀 HIDEKI NAKAMIZU | passive | 2.9M | ¥425 | +16.2% | ¥175M ($1.1M) |
| 2025-06-24 | SELL | Market Buy | Founders Capital株式会社 Founders Capital Co., Ltd. | passive | 944.1K | ¥425 | +16.2% | ¥65M ($417K) |
| 2025-06-20 | SELL | Market Buy | 三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited | passive | 1.5M | ¥433 | +17.8% | ¥256M ($1.7M) |
| 2025-06-20 | SELL | Market Buy | SMBC日興証券株式会社 SMBC Nikko Securities Inc. | other | 117.8K | ¥433 | +17.8% | ¥6M ($36K) |
| 2025-05-27 | SELL | Market Buy | Founders Capital株式会社 Founders Capital Co., Ltd. | passive | 1.1M | ¥298 | -19.5% | ¥80M ($518K) |
| 2025-05-27 | BUY | Market Buy | 中水 英紀 HIDEKI NAKAMIZU | passive | 3.6M | ¥298 | - | - |
| 2025-05-27 | BUY | Market Buy | Founders Capital株式会社 Founders Capital Co., Ltd. | passive | 1.4M | ¥298 | - | - |
| 2025-05-27 | SELL | Market Buy | 中水 英紀 HIDEKI NAKAMIZU | passive | 3.3M | ¥298 | -19.5% | ¥85M ($551K) |
| 2025-04-18 | SELL | Market Buy | 中水 英紀 HIDEKI NAKAMIZU | passive | 3.6M | ¥255 | -39.6% | ¥123M ($794K) |
| 2025-04-18 | BUY | Market Buy | 株式会社AAM AAM Co., Ltd. | passive | 1.4M | ¥255 | - | - |
| 2025-04-07 | BUY | Market Buy | 三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited | passive | 2.1M | ¥221 | +61.1% | ¥456M ($2.9M) |
Showing the 50 most recent of 108 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.