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Dainichi Co., Ltd. 5951

Company
ダイニチ工業株式会社Dainichi Co., Ltd.
Investors
4
Buys
1
Total Value
¥858M ($5.5M)
Avg Return
+13.27%
Last Filing
2026-05-01

Dainichi Co., Ltd. (5951) has 1 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥858M ($5.5M) in reported transaction value. The earliest filing StockDrifts holds for Dainichi Co., Ltd. is dated 2025-10-28; the most recent is 2026-05-01. 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 +13.27%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-08-14BUYMarket Buy
レンジリー・キャピタル・エルエルシー(Rangeley Capital, LLC)
Rangeley Capital, LLC
activist1.1M¥1,199+0.0%¥176M ($1.1M)
2026-05-01BUYnegotiated
吉井 久美子
activist556.9K¥978+0.5%¥545M ($3.5M)
2026-05-01BUYnegotiated
株式会社ビー・エッチ
activist1.8M¥978+0.5%¥1.8B ($11.6M)
2026-05-01BUYnegotiated
吉井 久夫
activist570.6K¥978+0.5%¥558M ($3.6M)
2025-10-28BUYunknown
レンジリー・キャピタル・エルエルシー(Rangeley Capital, LLC)
Rangeley Capital, LLC
activist956.8K¥897+13.3%¥858M ($5.5M)

Frequently asked questions

Who has been buying Dainichi Co., Ltd. stock?
4 distinct investors have filed 1 disclosed large-shareholding filings in Dainichi Co., Ltd. (5951), most recently on 2026-05-01. 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 Dainichi Co., Ltd. have?
Dainichi Co., Ltd. has 1 buy-side and 0 sell-side disclosures on record, covering ¥858M ($5.5M) in total reported value, spanning 2025-10-28 to 2026-05-01.
Where does StockDrifts get Dainichi Co., 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 Dainichi Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.