Who has been buying KEIWA Incorporated stock?

7 distinct investors have filed 30 disclosed large-shareholding filings in KEIWA Incorporated (4251), most recently on 2022-12-06. 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 KEIWA Incorporated have?

KEIWA Incorporated has 30 buy-side and 13 sell-side disclosures on record, covering ¥7.7B ($49.4M) in total reported value, spanning 2021-08-04 to 2022-12-06.

Where does StockDrifts get KEIWA Incorporated 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.

KEIWA Incorporated 4251

Company

恵和株式会社KEIWA Incorporated

Investors

Buys

Total Value

¥7.7B ($49.4M)

Avg Return

-42.97%

Last Filing

2022-12-06

KEIWA Incorporated (4251) has 30 disclosed large-shareholding filings and 13 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥7.7B ($49.4M) in reported transaction value. The earliest filing StockDrifts holds for KEIWA Incorporated is dated 2021-08-04; the most recent is 2022-12-06. 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 -42.97%, 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
2026-05-20	BUY	Market Buy	長村惠弌 Keiichi Osamura	strategic	7.0M	¥1,240	-2.6%	¥196M ($1.3M)
2022-12-06	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	191.9K	¥1,722.5	-27.9%	¥331M ($2.1M)
2022-12-06	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	103.2K	¥1,722.5	+27.9%	¥179M ($1.2M)
2022-12-06	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	6.1K	¥1,722.5	+27.9%	¥149M ($963K)
2022-11-21	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	191.9K	¥1,757.5	-29.4%	¥337M ($2.2M)
2022-11-21	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	207.1K	¥1,757.5	-29.4%	¥364M ($2.3M)
2022-11-21	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	92.5K	¥1,757.5	-29.4%	¥163M ($1.0M)
2022-11-04	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	27.6K	¥1,762.5	+29.6%	¥222M ($1.4M)
2022-11-04	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	192.0K	¥1,762.5	-29.6%	¥19M ($120K)
2022-11-04	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	238.3K	¥1,762.5	-29.6%	¥158M ($1.0M)
2022-10-05	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	180.6K	¥1,717.5	-27.7%	¥310M ($2.0M)
2022-10-05	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	147.9K	¥1,717.5	-27.7%	¥254M ($1.6M)
2022-10-05	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	154.4K	¥1,717.5	-27.7%	¥265M ($1.7M)
2022-08-19	SELL	unknown	UBS Europe SE	other	14.2K	¥1,967.5	+36.9%	¥15M ($98K)
2022-08-19	BUY	unknown	ユービーエス・エイ・ジー(銀行) UBS AG	other	330.8K	¥1,967.5	-36.9%	¥642M ($4.1M)
2022-07-21	SELL	Market Buy	UBS Europe SE	other	22.2K	¥1,785	+30.5%	¥296M ($1.9M)
2022-07-21	BUY	Market Buy	ユービーエス・エイ・ジー(銀行) UBS AG	other	495.5K	¥1,785	-30.5%	¥296M ($1.9M)
2022-07-07	BUY	unknown	UBS Europe SE	other	187.5K	¥1,675	-25.9%	¥314M ($2.0M)
2022-07-07	SELL	unknown	ユービーエス・エイ・ジー(銀行) UBS AG	other	330.3K	¥1,675	+25.9%	¥294M ($1.9M)
2022-05-19	SELL	Market Buy	UBS Europe SE	other	400	¥2,500	+50.4%	¥53M ($342K)
2022-05-19	SELL	Market Buy	UBS証券株式会社 UBS Securities Co., Ltd.	other	1.9K	¥2,500	+50.4%	¥412M ($2.7M)
2022-05-19	BUY	Market Buy	ユービーエス・エイ・ジー(銀行) UBS AG	other	506.0K	¥2,500	-50.4%	¥946M ($6.1M)
2022-04-22	BUY	unknown	UBS Europe SE	other	21.5K	¥2,437.5	-49.1%	¥52M ($333K)
2022-04-22	BUY	unknown	UBS証券株式会社 UBS Securities Co., Ltd.	other	356.9K	¥2,437.5	-49.1%	¥870M ($5.6M)
2022-04-22	BUY	unknown	ユービーエス・エイ・ジー(銀行) UBS AG	other	126.8K	¥2,437.5	-49.1%	¥297M ($1.9M)
2022-03-22	BUY	Market Buy	ユービーエス・エイ・ジー(銀行) UBS AG	other	516.3K	¥2,237.5	-44.5%	¥15M ($97K)
2022-02-22	SELL	Market Buy	UBS Europe SE	other	5.6K	¥2,155	+42.4%	¥25M ($159K)
2022-02-22	BUY	Market Buy	ユービーエス・エイ・ジー(銀行) UBS AG	other	509.4K	¥2,155	-42.4%	¥24M ($158K)
2022-02-09	BUY	unknown	UBS Europe SE	other	120.0K	¥2,560	-51.5%	¥307M ($2.0M)
2022-02-09	BUY	Market Buy	UBS Europe SE	other	120.0K	¥2,560	-51.5%	¥307M ($2.0M)
2022-02-09	BUY	Market Buy	ユービーエス・エイ・ジー(銀行) UBS AG	other	877.7K	¥2,560	-51.5%	¥1.3B ($8.1M)
2022-02-09	BUY	unknown	ユービーエス・エイ・ジー(銀行) UBS AG	other	396.0K	¥2,560	-51.5%	¥992M ($6.4M)
2022-01-19	BUY	Market Buy	UBS Europe SE	other	120.3K	¥2,830	-56.1%	¥3M ($18K)
2022-01-19	BUY	Market Buy	ユービーエス・エイ・ジー(銀行) UBS AG	other	389.2K	¥2,830	-56.1%	¥5M ($35K)
2022-01-12	BUY	unknown	UBS Europe SE	other	119.4K	¥3,095	-59.9%	¥185M ($1.2M)
2022-01-12	SELL	unknown	ユービーエス・エイ・ジー(銀行) UBS AG	other	387.1K	¥3,095	+59.9%	¥182M ($1.2M)
2022-01-11	SELL	Market Buy	UBS Europe SE	other	59.9K	¥2,990	+58.5%	¥9M ($56K)
2022-01-11	BUY	Market Buy	ユービーエス・エイ・ジー(銀行) UBS AG	other	446.4K	¥2,990	-58.5%	¥81M ($519K)
2022-01-06	BUY	unknown	UBS Europe SE	other	62.5K	¥2,925	-57.6%	¥183M ($1.2M)
2022-01-06	BUY	unknown	UBS Europe SE	other	62.5K	¥2,925	-57.6%	¥183M ($1.2M)
2022-01-06	BUY	unknown	ユービーエス・エイ・ジー(銀行) UBS AG	other	418.8K	¥2,925	-57.6%	¥1.2B ($7.8M)
2022-01-06	BUY	unknown	ユービーエス・エイ・ジー(銀行) UBS AG	other	418.8K	¥2,925	-57.6%	¥1.2B ($7.8M)
2021-12-21	SELL	unknown	長村惠弌 Keiichi Osamura	strategic	3.4M	¥2,550	+51.3%	¥963M ($6.2M)
2021-12-13	SELL	unknown	長村惠弌 Keiichi Osamura	strategic	3.5M	¥2,840	+56.3%	¥23M ($145K)
2021-10-21	BUY	Market Buy	ユービーエス・エイ・ジー(銀行) UBS AG	other	469.5K	¥2,227.5	-44.3%	¥51M ($329K)
2021-10-06	BUY	Market Buy	ユービーエス・エイ・ジー(銀行) UBS AG	other	446.8K	¥2,257.5	-45.0%	¥10M ($64K)
2021-08-04	BUY	unknown	ユービーエス・エイ・ジー(銀行) UBS AG	other	441.8K	¥1,705	-27.2%	¥753M ($4.9M)

Frequently asked questions

Who has been buying KEIWA Incorporated stock?: 7 distinct investors have filed 30 disclosed large-shareholding filings in KEIWA Incorporated (4251), most recently on 2022-12-06. 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 KEIWA Incorporated have?: KEIWA Incorporated has 30 buy-side and 13 sell-side disclosures on record, covering ¥7.7B ($49.4M) in total reported value, spanning 2021-08-04 to 2022-12-06.
Where does StockDrifts get KEIWA Incorporated 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 KEIWA Incorporated. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.