StockDriftsStockDriftsFixstars Corporation (3687) has 32 disclosed large-shareholding filings and 30 disclosed disposals on record, filed by 15 distinct investors. Together those filings cover ¥24.3B ($157.1M) in reported transaction value. The earliest filing StockDrifts holds for Fixstars Corporation is dated 2021-10-07; the most recent is 2026-04-22. All of it is parsed from EDINET large-shareholding (5%+) reports, the official disclosure system operated by the Financial Services Agency (Japan). Across these filings the average return since disclosure is +8.93%, measured from each filing date to the latest available close.
| Date | Type | Source | Insider | Purpose | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2026-06-10 | SELL | unknown | グッドハート パートナーズ エルエルピー(Goodhart Partners LLP) Goodhart Partners LLP | other | 1.4M | ¥2,387 | +7.8% | ¥1.0B ($6.5M) |
| 2026-06-08 | SELL | unknown | グッドハート パートナーズ エルエルピー(Goodhart Partners LLP) Goodhart Partners LLP | other | 1.8M | ¥2,935 | +18.9% | ¥1.5B ($9.4M) |
| 2026-06-04 | SELL | unknown | グッドハート パートナーズ エルエルピー(Goodhart Partners LLP) Goodhart Partners LLP | other | 2.3M | ¥3,200 | +25.6% | ¥2.0B ($12.9M) |
| 2026-04-22 | SELL | unknown | アセットマネジメントOne株式会社 | other | 1.0M | ¥1,310 | -44.7% | ¥648M ($4.2M) |
| 2026-04-22 | BUY | Market Buy | みずほ証券 株式会社 | other | 532.8K | ¥1,310 | +44.7% | ¥13M ($85K) |
| 2026-04-02 | SELL | unknown | グッドハート パートナーズ エルエルピー(Goodhart Partners LLP) Goodhart Partners LLP | other | 2.9M | ¥1,206 | -7.1% | ¥466M ($3.0M) |
| 2026-02-06 | BUY | Market Buy | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | other | 2.0M | ¥1,442 | -7.0% | ¥10M ($63K) |
| 2026-01-22 | BUY | unknown | アセットマネジメントOne株式会社 | other | 1.5M | ¥1,572 | -14.7% | ¥2.0B ($12.9M) |
| 2026-01-22 | BUY | unknown | みずほ証券 株式会社 | other | 532.8K | ¥1,572 | -14.7% | ¥714M ($4.6M) |
| 2026-01-16 | SELL | unknown | グッドハート パートナーズ エルエルピー(Goodhart Partners LLP) Goodhart Partners LLP | other | 3.3M | ¥1,635 | +18.0% | ¥588M ($3.8M) |
| 2025-12-23 | SELL | unknown | グッドハート パートナーズ エルエルピー(Goodhart Partners LLP) Goodhart Partners LLP | other | 3.7M | ¥1,582 | +15.2% | ¥660M ($4.3M) |
| 2025-09-19 | BUY | Market Buy | 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 | 397.8K | ¥1,916 | -30.0% | ¥193M ($1.2M) |
| 2025-09-19 | BUY | 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 | 785.9K | ¥1,916 | -30.0% | ¥271M ($1.7M) |
| 2025-09-19 | BUY | Market Buy | 三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited | other | 800.0K | ¥1,916 | -30.0% | ¥1.5B ($9.9M) |
| 2025-09-05 | SELL | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 1.6M | ¥1,739 | +22.9% | ¥655M ($4.2M) |
| 2025-08-29 | BUY | unknown | 株式会社ANES ANES Co., Ltd. | activist | 200.0K | ¥1,903 | -29.5% | ¥381M ($2.5M) |
| 2025-08-29 | BUY | unknown | 株式会社グリーンテック Green Tech Co., Ltd. | activist | 200.0K | ¥1,903 | -29.5% | ¥381M ($2.5M) |
| 2025-08-29 | SELL | unknown | 三木 聡 Satoshi Miki | activist | 3.1M | ¥1,903 | +29.5% | ¥384M ($2.5M) |
| 2025-06-06 | SELL | unknown | 長谷川 智彦 Tomohiko Hasegawa | other | 2.1M | ¥2,020 | +33.6% | ¥1.1B ($7.3M) |
| 2025-02-19 | SELL | unknown | 株式会社ANES ANES Co., Ltd. | activist | 200.0K | ¥1,917 | +30.1% | ¥193M ($1.2M) |
| 2025-02-19 | SELL | unknown | 株式会社グリーンテック Green Tech Co., Ltd. | activist | 200.0K | ¥1,917 | +30.1% | ¥193M ($1.2M) |
| 2025-02-19 | SELL | unknown | 三木 聡 Satoshi Miki | activist | 3.3M | ¥1,917 | +30.1% | ¥277M ($1.8M) |
| 2025-02-07 | SELL | unknown | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | other | 26.1K | ¥1,980 | +32.3% | ¥53M ($344K) |
| 2025-02-07 | SELL | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 2.0M | ¥1,980 | +32.3% | ¥1.2B ($8.0M) |
| 2025-01-22 | SELL | unknown | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | other | 52.9K | ¥1,712 | +21.7% | ¥236M ($1.5M) |
| 2025-01-22 | SELL | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 2.6M | ¥1,712 | +21.7% | ¥184M ($1.2M) |
| 2024-11-15 | SELL | unknown | グッドハート パートナーズ エルエルピー(Goodhart Partners LLP) Goodhart Partners LLP | other | 4.1M | ¥1,614 | +16.9% | ¥608M ($3.9M) |
| 2024-10-04 | SELL | Market Buy | 日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd. | other | 297.5K | ¥1,537 | +12.8% | ¥41M ($267K) |
| 2024-10-04 | BUY | 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 | 644.5K | ¥1,537 | -12.8% | ¥114M ($734K) |
| 2024-10-04 | BUY | Market Buy | 三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited | other | 800.0K | ¥1,537 | -12.8% | ¥1.2B ($7.9M) |
| 2024-07-17 | BUY | Market Buy | グッドハート パートナーズ エルエルピー(Goodhart Partners LLP) Goodhart Partners LLP | other | 4.5M | ¥1,975 | -32.1% | ¥691M ($4.5M) |
| 2024-07-02 | BUY | Market Buy | グッドハート パートナーズ エルエルピー(Goodhart Partners LLP) Goodhart Partners LLP | other | 4.1M | ¥1,928 | -30.4% | ¥674M ($4.4M) |
| 2024-06-18 | BUY | Market Buy | グッドハート パートナーズ エルエルピー(Goodhart Partners LLP) Goodhart Partners LLP | other | 3.8M | ¥1,938 | -30.8% | ¥717M ($4.6M) |
| 2024-04-22 | SELL | unknown | 三木 聡 Satoshi Miki | activist | 3.4M | ¥1,997 | +32.9% | ¥450M ($2.9M) |
| 2024-04-22 | BUY | unknown | 株式会社ANES ANES Co., Ltd. | activist | 300.0K | ¥1,997 | -32.9% | ¥599M ($3.9M) |
| 2024-04-22 | BUY | unknown | 株式会社グリーンテック Green Tech Co., Ltd. | activist | 300.0K | ¥1,997 | -32.9% | ¥599M ($3.9M) |
| 2024-04-22 | 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 | 31.3K | ¥1,997 | +32.9% | ¥20M ($130K) |
| 2024-04-22 | BUY | unknown | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | other | 191.7K | ¥1,997 | -32.9% | ¥383M ($2.5M) |
| 2024-04-22 | BUY | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 2.7M | ¥1,997 | -32.9% | ¥5.4B ($34.7M) |
| 2024-04-02 | SELL | unknown | 原 行範 Yukinori Hara | strategic | 1.4M | ¥2,262 | +40.7% | ¥905M ($5.8M) |
| 2024-03-19 | 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 | 40.0K | ¥2,261 | -40.7% | ¥90M ($583K) |
| 2024-03-19 | BUY | unknown | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | other | 190.6K | ¥2,261 | -40.7% | ¥431M ($2.8M) |
| 2024-03-19 | BUY | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 3.1M | ¥2,261 | -40.7% | ¥6.9B ($44.5M) |
| 2024-03-18 | BUY | Market Buy | グッドハート パートナーズ エルエルピー(Goodhart Partners LLP) Goodhart Partners LLP | other | 3.4M | ¥2,268 | -40.9% | ¥1.1B ($7.2M) |
| 2024-02-29 | SELL | unknown | 原 行範 Yukinori Hara | strategic | 1.7M | ¥1,925 | +30.3% | ¥1.0B ($6.5M) |
| 2024-02-29 | BUY | unknown | 原 行範 Yukinori Hara | strategic | 1.8M | ¥1,925 | -30.3% | ¥809M ($5.2M) |
| 2024-02-02 | BUY | Market Buy | グッドハート パートナーズ エルエルピー(Goodhart Partners LLP) Goodhart Partners LLP | other | 2.9M | ¥1,692 | -20.7% | ¥797M ($5.1M) |
| 2024-01-25 | BUY | unknown | グッドハート パートナーズ エルエルピー(Goodhart Partners LLP) Goodhart Partners LLP | other | 2.5M | ¥1,708 | -21.5% | ¥586M ($3.8M) |
| 2024-01-25 | BUY | Market Buy | グッドハート パートナーズ エルエルピー(Goodhart Partners LLP) Goodhart Partners LLP | other | 2.5M | ¥1,708 | -21.5% | ¥592M ($3.8M) |
| 2024-01-23 | BUY | Market Buy | グッドハート パートナーズ エルエルピー(Goodhart Partners LLP) Goodhart Partners LLP | other | 2.1M | ¥1,562 | -14.2% | ¥662M ($4.3M) |
Showing the 50 most recent of 87 filings.
Every trade listed above is disclosed in EDINET large-shareholding (5%+) reports, filed with the Financial Services Agency (Japan). View the original EDINET filings for Fixstars Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.