Who has been buying Kensoh Co.,Ltd. stock?

5 distinct investors have filed 2 disclosed large-shareholding filings in Kensoh Co.,Ltd. (7939), most recently on 2023-12-20. 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 Kensoh Co.,Ltd. have?

Kensoh Co.,Ltd. has 2 buy-side and 0 sell-side disclosures on record, covering ¥108M ($695K) in total reported value, spanning 2021-08-05 to 2023-12-20.

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.

Kensoh Co.,Ltd. 7939

Company

株式会社研創Kensoh Co.,Ltd.

Investors

Buys

Total Value

¥108M ($695K)

Avg Return

+22.98%

Last Filing

2023-12-20

Kensoh Co.,Ltd. (7939) has 2 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥108M ($695K) in reported transaction value. The earliest filing StockDrifts holds for Kensoh Co.,Ltd. is dated 2021-08-05; the most recent is 2023-12-20. Across these filings the average return since disclosure is +22.98%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

Date	Type	Source	Insider	Purpose	Shares	Price at filing	Return	Value
2026-07-16	BUY	Market Buy	研創親和会理事長石丸朋文 Kensoh Shinwakai Rijicyou Ishimaru Tomofumi	strategic	242.9K	¥588	+2.5%	¥24M ($156K)
2023-12-20	BUY	unknown	研創親和会理事長石丸朋文 Kensoh Shinwakai Rijicyou Ishimaru Tomofumi	strategic	201.8K	¥518	-	¥105M ($674K)
2023-12-20	BUY	unknown	研創親和会理事長石丸朋文 Kensoh Shinwakai Rijicyou Ishimaru Tomofumi	strategic	201.8K	¥518	+16.4%	¥105M ($674K)
2021-10-26	BUY	unknown	林良一(相続人代表林大一郎) Ryoichi Hayashi (Heir Representative Daiichiro Hayashi)	unknown	0	¥434	-	-
2021-10-26	BUY	unknown	株式会社研創エンタープライズ Kenso Enterprise Co., Ltd.	strategic	780.7K	¥434	-	-
2021-10-26	BUY	unknown	林大一郎 Daiichiro Hayashi	strategic	67.2K	¥434	-	-
2021-08-05	BUY	unknown	林良一(相続人代表林大一郎) Ryoichi Hayashi (Heir Representative Daiichiro Hayashi)	other	53	¥437	-	-
2021-08-05	BUY	unknown	株式会社研創エンタープライズ Kenso Enterprise Co., Ltd.	strategic	780.7K	¥437	-	-
2021-08-05	BUY	unknown	林大一郎 Daiichiro Hayashi	strategic	67.1K	¥437	+38.0%	¥3M ($20K)

Frequently asked questions

Who has been buying Kensoh Co.,Ltd. stock?: 5 distinct investors have filed 2 disclosed large-shareholding filings in Kensoh Co.,Ltd. (7939), most recently on 2023-12-20. 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 Kensoh Co.,Ltd. have?: Kensoh Co.,Ltd. has 2 buy-side and 0 sell-side disclosures on record, covering ¥108M ($695K) in total reported value, spanning 2021-08-05 to 2023-12-20.
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.