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

13 distinct investors have filed 17 disclosed large-shareholding filings in Furukawa Co.,Ltd. (5715), most recently on 2026-01-21. 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 Furukawa Co.,Ltd. have?

Furukawa Co.,Ltd. has 17 buy-side and 11 sell-side disclosures on record, covering ¥14.7B ($94.8M) in total reported value, spanning 2022-07-25 to 2026-01-21.

Where does StockDrifts get Furukawa 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.

Furukawa Co.,Ltd. 5715

Company

古河機械金属株式会社Furukawa Co.,Ltd.

Investors

Buys

Total Value

¥14.7B ($94.8M)

Avg Return

+216.18%

Last Filing

2026-01-21

Furukawa Co.,Ltd. (5715) has 17 disclosed large-shareholding filings and 11 disclosed disposals on record, filed by 13 distinct investors. Together those filings cover ¥14.7B ($94.8M) in reported transaction value. The earliest filing StockDrifts holds for Furukawa Co.,Ltd. is dated 2022-07-25; the most recent is 2026-01-21. 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 +216.18%, 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
2026-01-21	SELL	unknown	野村アセットマネジメント株式会社	other	1.4M	¥4,595	+1.6%	¥6.5B ($41.8M)
2026-01-21	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	35.1K	¥4,595	+1.6%	¥159M ($1.0M)
2026-01-21	SELL	unknown	野村證券株式会社	other	549	¥4,595	+1.6%	¥2M ($16K)
2025-02-20	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥2,263	+99.7%	¥226K ($1K)
2025-02-20	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	1.6M	¥2,263	+99.7%	¥3.6B ($23.0M)
2025-01-20	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	2.0M	¥1,751	+158.1%	¥3.5B ($22.5M)
2025-01-20	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	2.0M	¥1,751	+158.1%	¥3.6B ($23.1M)
2025-01-20	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥1,751	+158.1%	¥175K ($1K)
2025-01-20	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	60.8K	¥1,751	+158.1%	¥107M ($687K)
2024-09-20	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	914.8K	¥1,625	-178.2%	¥631M ($4.1M)
2024-09-20	SELL	negotiated	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	709.6K	¥1,625	-178.2%	¥26M ($170K)
2024-09-20	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	155.2K	¥1,625	-178.2%	¥171M ($1.1M)
2024-08-06	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	1.3M	¥1,548	-192.0%	¥639M ($4.1M)
2024-08-06	BUY	negotiated	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	722.4K	¥1,548	+192.0%	¥75M ($485K)
2024-08-06	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	258.6K	¥1,548	+192.0%	¥400M ($2.6M)
2024-03-06	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	1.7M	¥1,778	+154.2%	¥43M ($278K)
2024-03-06	SELL	negotiated	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	675.4K	¥1,778	-154.2%	¥734M ($4.7M)
2024-03-06	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	258.6K	¥1,778	+154.2%	¥460M ($3.0M)
2022-12-27	BUY	Market Buy	株式会社川嶋 Kawashima Co.,Ltd	strategic	1.9M	¥1,282	+252.6%	¥311M ($2.0M)
2022-12-27	BUY	Market Buy	株式会社ニューメタル New Metal Co., Ltd.	strategic	140.0K	¥1,282	+252.6%	¥179M ($1.2M)
2022-12-27	BUY	Market Buy	有限会社ハード Hard Co., Ltd.	strategic	8.0K	¥1,282	+252.6%	¥10M ($66K)
2022-12-27	BUY	Market Buy	株式会社三光 Sanko Co., Ltd.	strategic	739.7K	¥1,282	+252.6%	¥218M ($1.4M)
2022-11-08	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	1.8M	¥1,330	+239.8%	¥2.3B ($15.0M)
2022-11-08	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	96.3K	¥1,330	+239.8%	¥128M ($826K)
2022-11-08	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	18.0K	¥1,330	+239.8%	¥24M ($155K)
2022-11-07	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	1.7M	¥1,328	-240.4%	¥430M ($2.8M)
2022-11-07	SELL	negotiated	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	1.1M	¥1,328	-240.4%	¥129M ($832K)
2022-11-07	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	258.6K	¥1,328	+240.4%	¥343M ($2.2M)
2022-10-12	BUY	unknown	株式会社ニューメタル New Metal Co., Ltd.	strategic	140.0K	¥1,240	+264.5%	¥174M ($1.1M)
2022-10-12	BUY	Market Buy	株式会社三光 Sanko Co., Ltd.	strategic	568.5K	¥1,240	+264.5%	¥705M ($4.5M)
2022-10-12	BUY	unknown	有限会社ハード Hard Co., Ltd.	strategic	8.0K	¥1,240	+264.5%	¥10M ($64K)
2022-10-12	BUY	unknown	株式会社三光 Sanko Co., Ltd.	strategic	568.5K	¥1,240	+264.5%	¥705M ($4.5M)
2022-10-12	SELL	unknown	川嶋義勝 Yoshikatsu Kawashima	unknown	0	¥1,240	-264.5%	¥125M ($809K)
2022-10-12	BUY	Market Buy	株式会社ニューメタル New Metal Co., Ltd.	strategic	140.0K	¥1,240	+264.5%	¥174M ($1.1M)
2022-10-12	BUY	Market Buy	有限会社ハード Hard Co., Ltd.	strategic	8.0K	¥1,240	+264.5%	¥10M ($64K)
2022-10-12	SELL	Market Buy	川嶋義勝 Yoshikatsu Kawashima	strategic	0	¥1,240	-264.5%	¥125M ($809K)
2022-10-12	BUY	Market Buy	株式会社川嶋 Kawashima Co.,Ltd	strategic	1.7M	¥1,240	+264.5%	¥632M ($4.1M)
2022-10-12	BUY	unknown	株式会社川嶋 Kawashima Co.,Ltd	strategic	1.6M	¥1,240	+264.5%	¥507M ($3.3M)
2022-07-25	BUY	unknown	株式会社ニューメタル New Metal Co., Ltd.	strategic	140.0K	¥1,240	+264.5%	¥174M ($1.1M)
2022-07-25	BUY	unknown	有限会社ハード Hard Co., Ltd.	strategic	8.0K	¥1,240	+264.5%	¥10M ($64K)
2022-07-25	BUY	unknown	株式会社三光 Sanko Co., Ltd.	strategic	568.5K	¥1,240	+264.5%	¥705M ($4.5M)
2022-07-25	BUY	unknown	株式会社川嶋 Kawashima Co.,Ltd	strategic	1.2M	¥1,240	+264.5%	¥1.5B ($9.7M)
2022-07-25	BUY	unknown	川嶋義勝 Yoshikatsu Kawashima	strategic	100.0K	¥1,240	+264.5%	¥124M ($800K)

Frequently asked questions

Who has been buying Furukawa Co.,Ltd. stock?: 13 distinct investors have filed 17 disclosed large-shareholding filings in Furukawa Co.,Ltd. (5715), most recently on 2026-01-21. 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 Furukawa Co.,Ltd. have?: Furukawa Co.,Ltd. has 17 buy-side and 11 sell-side disclosures on record, covering ¥14.7B ($94.8M) in total reported value, spanning 2022-07-25 to 2026-01-21.
Where does StockDrifts get Furukawa 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 Furukawa Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.