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Yamax Corp. 5285

Company
株式会社ヤマックスYamax Corp.
Investors
2
Buys
2
Total Value
¥117M ($752K)
Avg Return
+452.78%
Last Filing
2023-08-22

Yamax Corp. (5285) has 2 disclosed large-shareholding filings and 1 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥117M ($752K) in reported transaction value. The earliest filing StockDrifts holds for Yamax Corp. is dated 2021-05-18; the most recent is 2023-08-22. 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 +452.78%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2023-08-22SELLunknown
平松裕将
Hiramatsu Hiromasa
activist573.0K¥674-128.6%¥84M ($544K)
2022-03-22BUYunknown
株式会社麻生
ASO CORPORATION
strategic335.4K¥302.5+409.4%¥101M ($655K)
2021-05-18BUYMarket Buy
平松裕将
Hiramatsu Hiromasa
activist349.0K¥258.5+496.1%¥15M ($98K)

Frequently asked questions

Who has been buying Yamax Corp. stock?
2 distinct investors have filed 2 disclosed large-shareholding filings in Yamax Corp. (5285), most recently on 2023-08-22. 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 Yamax Corp. have?
Yamax Corp. has 2 buy-side and 1 sell-side disclosures on record, covering ¥117M ($752K) in total reported value, spanning 2021-05-18 to 2023-08-22.
Where does StockDrifts get Yamax Corp. insider data?
From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.
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.

Source 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 Yamax Corp.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.