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Silicon Studio Corporation 3907

Company
シリコンスタジオ株式会社Silicon Studio Corporation
Investors
4
Buys
2
Total Value
¥26M ($168K)
Avg Return
-29.09%
Last Filing
2025-06-25

Silicon Studio Corporation (3907) has 2 disclosed large-shareholding filings and 3 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥26M ($168K) in reported transaction value. The earliest filing StockDrifts holds for Silicon Studio Corporation is dated 2021-05-10; the most recent is 2025-06-25. Across these filings the average return since disclosure is -29.09%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2025-06-25BUYunknown
梶谷 眞一郎
Kajitani Shinichirou
activist148.9K¥856+148.8%¥127M ($822K)
2025-06-25BUYunknown
梶谷 眞一郎
Kajitani Shinichirou
activist162.0K¥856-¥139M ($895K)
2025-06-25BUYunknown
梶谷 眞一郎
Kajitani Shinichirou
activist179.4K¥856-¥26M ($168K)
2025-06-25BUYMarket Buy
梶谷 眞一郎
Kajitani Shinichirou
activist179.4K¥856+148.8%¥26M ($168K)
2023-04-25SELLunknown
関本 晃靖
TERUYASU SEKIMOTO
strategic143.0K¥1,328-60.4%¥184M ($1.2M)
2022-01-28SELLunknown
寺田 健彦
Takehiko Terada
activist30.2K¥781-172.7%¥104M ($670K)
2021-05-10SELLMarket Buy
ニッポン・オポチュニティー・マネジメント・エルエルシー(Nippon Opportunity Management LLC)
Nippon Opportunity Management LLC
passive82.5K¥1,164-83.0%¥92M ($596K)

Frequently asked questions

Who has been buying Silicon Studio Corporation stock?
4 distinct investors have filed 2 disclosed large-shareholding filings in Silicon Studio Corporation (3907), most recently on 2025-06-25. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.
How many insider filings does Silicon Studio Corporation have?
Silicon Studio Corporation has 2 buy-side and 3 sell-side disclosures on record, covering ¥26M ($168K) in total reported value, spanning 2021-05-10 to 2025-06-25.
Do insider buys in Japanese stocks predict returns?
Not uniformly. StockDrifts scored 101,000+ Japanese large-shareholding filings on fixed 12-month forward returns and found the predictive power concentrated in specific filer types and filing patterns rather than spread evenly across all disclosures.

More on this data

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.