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

5 distinct investors have filed 8 disclosed large-shareholding filings in Kyowanissei Co.,Ltd. (1981), most recently on 2025-05-22. 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 Kyowanissei Co.,Ltd. have?

Kyowanissei Co.,Ltd. has 8 buy-side and 2 sell-side disclosures on record, covering ¥1.8B ($11.4M) in total reported value, spanning 2022-10-04 to 2025-05-22.

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.

Kyowanissei Co.,Ltd. 1981

Company

株式会社協和日成Kyowanissei Co.,Ltd.

Investors

Buys

Total Value

¥1.8B ($11.4M)

Avg Return

+3.46%

Last Filing

2025-05-22

Kyowanissei Co.,Ltd. (1981) has 8 disclosed large-shareholding filings and 2 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥1.8B ($11.4M) in reported transaction value. The earliest filing StockDrifts holds for Kyowanissei Co.,Ltd. is dated 2022-10-04; the most recent is 2025-05-22. Across these filings the average return since disclosure is +3.46%, 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
2025-05-22	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	368.2K	¥1,340	-	-
2025-05-22	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	106.2K	¥1,340	-0.7%	¥150M ($965K)
2024-12-10	BUY	Market Buy	株式会社麻生 ASO CORPORATION	strategic	713.2K	¥1,410	-4.3%	¥197M ($1.3M)
2024-12-06	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	217.5K	¥1,385	-2.6%	¥301M ($1.9M)
2024-12-06	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	368.6K	¥1,385	-2.6%	¥511M ($3.3M)
2024-11-22	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	217.5K	¥1,246	-8.3%	¥166M ($1.1M)
2024-11-22	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	368.8K	¥1,246	-	-
2023-03-23	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	369.3K	¥1,430	-5.7%	¥528M ($3.4M)
2023-03-23	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	350.0K	¥1,430	-5.7%	¥501M ($3.2M)
2022-10-25	BUY	Market Buy	城北興業株式会社 JOUHOKU KOGYO	passive	2.3M	¥1,340	+0.7%	¥368M ($2.4M)
2022-10-25	BUY	Market Buy	城北興業株式会社 JOUHOKU KOGYO	passive	2.3M	¥1,340	+0.7%	¥368M ($2.4M)
2022-10-25	BUY	Market Buy	株式会社アルファロード Alpharoad Co., Ltd.	passive	394.0K	¥1,340	-	-
2022-10-25	BUY	Market Buy	株式会社アルファロード Alpharoad Co., Ltd.	passive	394.0K	¥1,340	-	-
2022-10-04	BUY	unknown	株式会社麻生 ASO CORPORATION	strategic	606.2K	¥1,330	+1.4%	¥806M ($5.2M)

Frequently asked questions

Who has been buying Kyowanissei Co.,Ltd. stock?: 5 distinct investors have filed 8 disclosed large-shareholding filings in Kyowanissei Co.,Ltd. (1981), most recently on 2025-05-22. 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 Kyowanissei Co.,Ltd. have?: Kyowanissei Co.,Ltd. has 8 buy-side and 2 sell-side disclosures on record, covering ¥1.8B ($11.4M) in total reported value, spanning 2022-10-04 to 2025-05-22.
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.