Who has been buying The Furukawa Battery Co., Ltd. stock?

7 distinct investors have filed 15 disclosed large-shareholding filings in The Furukawa Battery Co., Ltd. (6937), most recently on 2025-09-22. 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 The Furukawa Battery Co., Ltd. have?

The Furukawa Battery Co., Ltd. has 15 buy-side and 8 sell-side disclosures on record, covering ¥15.4B ($99.5M) in total reported value, spanning 2024-03-15 to 2025-09-22.

Where does StockDrifts get The Furukawa Battery 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.

The Furukawa Battery Co., Ltd. 6937

Company

古河電池株式会社The Furukawa Battery Co., Ltd.

Investors

Buys

Total Value

¥15.4B ($99.5M)

Avg Return

+3.52%

Last Filing

2025-09-22

The Furukawa Battery Co., Ltd. (6937) has 15 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥15.4B ($99.5M) in reported transaction value. The earliest filing StockDrifts holds for The Furukawa Battery Co., Ltd. is dated 2024-03-15; the most recent is 2025-09-22. 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 +3.52%, 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
2025-09-22	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	391.4K	¥1,391	-0.1%	¥91M ($589K)
2025-09-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	216.5K	¥1,391	+0.1%	¥282M ($1.8M)
2025-09-22	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	100	¥1,391	-0.1%	¥18.7B ($120.7M)
2025-09-16	SELL	unknown	古河電工パワーシステムズ株式会社 Furukawa Electric Power Systems Co., Ltd.	other	0	¥1,391	-0.1%	¥5.5B ($35.3M)
2025-09-16	SELL	unknown	古河産業株式会社 Furukawa Sangyo Co., Ltd.	other	0	¥1,391	-0.1%	¥18.2B ($117.7M)
2025-09-16	BUY	unknown	古河電気工業株式会社 Furukawa Electric Co., Ltd.	activist	18.8M	¥1,391	+0.1%	¥26.1B ($168.5M)
2025-09-12	BUY	unknown	株式会社AP78 AP78 Co., Ltd.	activist	29.6M	¥1,392	+0.1%	¥41.3B ($266.2M)
2025-09-12	BUY	acquisition	株式会社AP78 AP78 Co., Ltd.	activist	10.9M	¥1,392	+0.1%	¥11.0B ($71.1M)
2025-06-20	BUY	Market Buy	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	455.5K	¥1,387	+0.4%	¥632M ($4.1M)
2025-06-20	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	1.3M	¥1,387	+0.4%	¥205M ($1.3M)
2025-06-20	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	134.3K	¥1,387	+0.4%	¥910M ($5.9M)
2025-04-07	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	129.5K	¥1,373	+1.5%	¥1.4B ($8.7M)
2025-04-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	454.7K	¥1,373	+1.5%	¥9M ($58K)
2025-04-07	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	1.2M	¥1,373	-1.5%	¥149M ($959K)
2025-03-21	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	1.3M	¥1,388	+0.4%	¥624M ($4.0M)
2025-03-21	SELL	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	119.0K	¥1,388	-0.4%	¥323M ($2.1M)
2025-03-21	BUY	Market Buy	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	450.5K	¥1,388	+0.4%	¥625M ($4.0M)
2025-02-21	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	448.5K	¥1,383	+0.7%	¥620M ($4.0M)
2025-02-21	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	857.8K	¥1,383	+0.7%	¥1.2B ($7.7M)
2025-02-21	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	351.8K	¥1,383	+0.7%	¥487M ($3.1M)
2024-11-08	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	377.1K	¥1,375	-1.3%	¥5M ($29K)
2024-11-08	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	654.3K	¥1,375	-1.3%	¥298M ($1.9M)
2024-11-08	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	418.7K	¥1,375	+1.3%	¥27M ($175K)
2024-10-22	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	382.0K	¥1,375	+1.3%	¥525M ($3.4M)
2024-10-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	868.1K	¥1,375	+1.3%	¥1.2B ($7.7M)
2024-10-22	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	400.4K	¥1,375	+1.3%	¥551M ($3.6M)
2024-07-30	BUY	unknown	古河電工パワーシステムズ株式会社 Furukawa Electric Power Systems Co., Ltd.	strategic	40.0K	¥1,377	+1.2%	¥55M ($355K)
2024-07-30	BUY	unknown	古河産業株式会社 Furukawa Sangyo Co., Ltd.	strategic	132.0K	¥1,377	+1.2%	¥182M ($1.2M)
2024-07-30	BUY	unknown	古河電気工業株式会社 Furukawa Electric Co., Ltd.	activist	18.8M	¥1,377	+1.2%	¥25.9B ($166.8M)
2024-03-15	BUY	Market Buy	古河電工パワーシステムズ株式会社 Furukawa Electric Power Systems Co., Ltd.	strategic	40.0K	¥988	+41.0%	¥40M ($255K)
2024-03-15	BUY	Market Buy	古河産業株式会社 Furukawa Sangyo Co., Ltd.	strategic	132.0K	¥988	+41.0%	¥130M ($841K)
2024-03-15	BUY	Market Buy	古河電気工業株式会社 Furukawa Electric Co., Ltd.	corporate	18.8M	¥988	+41.0%	¥29M ($188K)

Frequently asked questions

Who has been buying The Furukawa Battery Co., Ltd. stock?: 7 distinct investors have filed 15 disclosed large-shareholding filings in The Furukawa Battery Co., Ltd. (6937), most recently on 2025-09-22. 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 The Furukawa Battery Co., Ltd. have?: The Furukawa Battery Co., Ltd. has 15 buy-side and 8 sell-side disclosures on record, covering ¥15.4B ($99.5M) in total reported value, spanning 2024-03-15 to 2025-09-22.
Where does StockDrifts get The Furukawa Battery 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 The Furukawa Battery Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.