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Hamai Industries Ltd. 6497

Company
株式会社ハマイHamai Industries Ltd.
Investors
3
Buys
2
Total Value
¥12M ($79K)
Avg Return
+2.13%
Last Filing
2026-04-15

Hamai Industries Ltd. (6497) has 2 disclosed large-shareholding filings and 1 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥12M ($79K) in reported transaction value. The earliest filing StockDrifts holds for Hamai Industries Ltd. is dated 2025-10-21; the most recent is 2026-04-15. 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 +2.13%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-04-15BUYMarket Buy
株式会社UH6
passive9.6K¥1,270+2.1%¥12M ($79K)
2026-04-15BUYMarket Buy
光通信株式会社
passive362.5K¥1,270+2.1%¥460M ($3.0M)
2025-10-21SELLMarket Buy
第一生命保険株式会社
The Dai-ichi Life Insurance Company, Limited
passive559.4K¥1,215-13.0%¥91M ($588K)

Frequently asked questions

Who has been buying Hamai Industries Ltd. stock?
3 distinct investors have filed 2 disclosed large-shareholding filings in Hamai Industries Ltd. (6497), most recently on 2026-04-15. 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 Hamai Industries Ltd. have?
Hamai Industries Ltd. has 2 buy-side and 1 sell-side disclosures on record, covering ¥12M ($79K) in total reported value, spanning 2025-10-21 to 2026-04-15.
Where does StockDrifts get Hamai Industries Ltd. 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 Hamai Industries Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.