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Koike Sanso Kogyo Co.,Ltd. 6137

Company
小池酸素工業株式会社Koike Sanso Kogyo Co.,Ltd.
Investors
6
Buys
3
Total Value
¥448M ($2.9M)
Avg Return
+274.56%
Last Filing
2024-07-29

Koike Sanso Kogyo Co.,Ltd. (6137) has 3 disclosed large-shareholding filings and 3 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥448M ($2.9M) in reported transaction value. The earliest filing StockDrifts holds for Koike Sanso Kogyo Co.,Ltd. is dated 2021-12-27; the most recent is 2024-07-29. 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 +274.56%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2024-07-29BUYnegotiated
株式会社三菱UFJ銀行
Mitsubishi UFJ Financial Group Inc.
strategic204.9K¥1,154+56.9%¥236M ($1.5M)
2024-07-29SELLnegotiated
三菱UFJ信託銀行株式会社
Mitsubishi UFJ Financial Group Inc.
passive25.7K¥1,154-56.9%¥4M ($27K)
2023-12-13SELLunknown
小池酸素工業取引先持株会 理事長 松倉 喜一
MATSUKURA KIICHI
unknown0¥769-135.5%¥265M ($1.7M)
2023-12-13BUYunknown
小池酸素工業取引先持株会 理事長 野崎 浩司
NOZAKI KOJI
strategic387.0K¥769+135.5%¥298M ($1.9M)
2021-12-28BUYunknown
小池酸素工業取引先持株会 理事長 松倉 喜一
MATSUKURA KIICHI
strategic344.5K¥407.8+344.1%¥140M ($906K)
2021-12-28BUYunknown
小池酸素工業取引先持株会 理事長 松倉 喜一
MATSUKURA KIICHI
strategic344.5K¥407.8+344.1%¥140M ($906K)
2021-12-28BUYMarket Buy
日本酸素ホールディングス株式会社
NIPPON SANSO HOLDINGS CORPORATION
strategic266.9K¥407.8+344.1%¥10M ($64K)
2021-12-27SELLunknown
峯村 剛
MINEMURA TSUYOSHI
strategic0¥407.6-344.3%¥136M ($879K)
2021-12-27BUYunknown
峯村 剛
MINEMURA TSUYOSHI
unknown0¥407.6+344.3%¥136M ($879K)

Frequently asked questions

Who has been buying Koike Sanso Kogyo Co.,Ltd. stock?
6 distinct investors have filed 3 disclosed large-shareholding filings in Koike Sanso Kogyo Co.,Ltd. (6137), most recently on 2024-07-29. 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 Koike Sanso Kogyo Co.,Ltd. have?
Koike Sanso Kogyo Co.,Ltd. has 3 buy-side and 3 sell-side disclosures on record, covering ¥448M ($2.9M) in total reported value, spanning 2021-12-27 to 2024-07-29.
Where does StockDrifts get Koike Sanso Kogyo 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 Koike Sanso Kogyo Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.