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Otani Kogyo Co.,Ltd. 5939

Company
株式会社大谷工業Otani Kogyo Co.,Ltd.
Investors
4
Buys
1
Total Value
¥229M ($1.5M)
Avg Return
-0.92%
Last Filing
2025-09-02

Otani Kogyo Co.,Ltd. (5939) has 1 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥229M ($1.5M) in reported transaction value. The earliest filing StockDrifts holds for Otani Kogyo Co.,Ltd. is dated 2021-12-09; the most recent is 2025-09-02. Across these filings the average return since disclosure is -0.92%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2025-09-02BUYunknown
中本有紀
Nakamoto Yuki
strategic42.1K¥5,440-14.3%¥229M ($1.5M)
2021-12-09BUYunknown
奈迫昭子
Akiko Nasako
strategic50.7K¥4,485--
2021-12-09BUYunknown
奈迫昭子
Akiko Nasako
strategic50.7K¥4,485--
2021-12-09BUYunknown
奈迫龍正
Ryumasa Nasako
strategic11.0K¥4,485--
2021-12-09BUYunknown
株式会社エムアンドエーコーポレーション
M&A Corporation Co., Ltd.
strategic774.0K¥4,485--
2021-12-09BUYunknown
奈迫龍正
Ryumasa Nasako
strategic11.0K¥4,485--
2021-12-09BUYunknown
株式会社エムアンドエーコーポレーション
M&A Corporation Co., Ltd.
strategic774.0K¥4,485--

Frequently asked questions

Who has been buying Otani Kogyo Co.,Ltd. stock?
4 distinct investors have filed 1 disclosed large-shareholding filings in Otani Kogyo Co.,Ltd. (5939), most recently on 2025-09-02. 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 Otani Kogyo Co.,Ltd. have?
Otani Kogyo Co.,Ltd. has 1 buy-side and 0 sell-side disclosures on record, covering ¥229M ($1.5M) in total reported value, spanning 2021-12-09 to 2025-09-02.
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.