Who has been buying Nagase & Co., Ltd. stock?

11 distinct investors have filed 13 disclosed large-shareholding filings in Nagase & Co., Ltd. (8012), most recently on 2026-04-07. 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 Nagase & Co., Ltd. have?

Nagase & Co., Ltd. has 13 buy-side and 22 sell-side disclosures on record, covering ¥4.3B ($27.5M) in total reported value, spanning 2021-09-01 to 2026-04-07.

Where does StockDrifts get Nagase & 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.

Nagase & Co., Ltd. 8012

Company

長瀬産業株式会社Nagase & Co., Ltd.

Investors

Buys

Total Value

¥4.3B ($27.5M)

Avg Return

+81.24%

Last Filing

2026-04-07

Nagase & Co., Ltd. (8012) has 13 disclosed large-shareholding filings and 22 disclosed disposals on record, filed by 11 distinct investors. Together those filings cover ¥4.3B ($27.5M) in reported transaction value. The earliest filing StockDrifts holds for Nagase & Co., Ltd. is dated 2021-09-01; the most recent is 2026-04-07. 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 +81.24%, 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
2026-04-07	BUY	unknown	野村アセットマネジメント株式会社	other	13.2M	¥1,183	-0.6%	¥208M ($1.3M)
2026-04-07	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-69.5K	¥1,183	+0.6%	¥4.8B ($31.2M)
2026-04-07	SELL	unknown	野村證券株式会社	other	66.7K	¥1,183	+0.6%	¥6.3B ($40.6M)
2026-04-06	BUY	negotiated	アモーヴァ・アセットマネジメント株式会社	other	10.0M	¥1,177	-0.0%	¥414M ($2.7M)
2026-04-06	SELL	negotiated	三井住友信託銀行株式会社	strategic	10.6M	¥1,177	+0.0%	¥3.3B ($21.4M)
2026-04-06	SELL	negotiated	三井住友トラスト・アセットマネジメント株式会社	other	8.0M	¥1,177	+0.0%	¥1.8B ($11.7M)
2025-09-19	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	3.4M	¥819.75	+45.6%	¥117M ($756K)
2025-09-19	SELL	negotiated	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	2.4M	¥819.75	-45.6%	¥72M ($465K)
2025-09-19	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	2.4M	¥819.75	-45.6%	¥423M ($2.7M)
2025-07-17	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.2M	¥717.5	-66.4%	¥8M ($51K)
2025-07-17	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	998.7K	¥717.5	-66.4%	¥954M ($6.2M)
2025-07-17	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	1.3M	¥717.5	+66.4%	¥967M ($6.2M)
2025-07-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.3M	¥690.63	+72.9%	¥2.3B ($14.5M)
2025-07-07	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	2.3M	¥690.63	+72.9%	¥1.6B ($10.4M)
2025-04-04	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	3.0M	¥624	+91.3%	¥208M ($1.3M)
2025-04-04	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	3.4M	¥624	-91.3%	¥889M ($5.7M)
2025-04-04	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	2.6M	¥624	+91.3%	¥351M ($2.3M)
2024-09-20	BUY	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	2.0M	¥803.5	+48.6%	¥536M ($3.5M)
2024-09-20	SELL	Market Buy	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	2.7M	¥803.5	-48.6%	¥194M ($1.3M)
2024-09-20	BUY	Market Buy	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	4.8M	¥803.5	+48.6%	¥102M ($655K)
2024-01-16	SELL	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	5.6M	¥588.63	-102.8%	¥736M ($4.7M)
2023-11-24	SELL	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	6.8M	¥587.75	-103.2%	¥700M ($4.5M)
2023-09-29	SELL	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	8.0M	¥587.63	-103.2%	¥707M ($4.6M)
2023-08-02	SELL	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	9.2M	¥609.25	-96.0%	¥726M ($4.7M)
2023-07-06	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	1.4M	¥597	-100.0%	¥77M ($500K)
2023-07-06	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	3.0M	¥597	-100.0%	¥338M ($2.2M)
2023-07-06	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	4.8M	¥597	-100.0%	¥338M ($2.2M)
2023-06-09	SELL	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	10.4M	¥603.38	-97.9%	¥747M ($4.8M)
2023-02-06	BUY	Market Buy	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	20.7K	¥512.25	+133.1%	¥1.1B ($7.4M)
2023-02-06	SELL	Market Buy	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	583.8K	¥512.25	-133.1%	¥19M ($120K)
2023-02-06	SELL	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	3.0M	¥512.25	-133.1%	¥539M ($3.5M)
2023-02-06	BUY	Market Buy	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.8M	¥512.25	+133.1%	¥25M ($160K)
2021-10-04	BUY	Market Buy	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	193.8K	¥460	+159.6%	¥89M ($575K)
2021-10-04	BUY	Market Buy	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	632.8K	¥460	+159.6%	¥132M ($849K)
2021-10-04	SELL	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	4.2M	¥460	-159.6%	¥589M ($3.8M)
2021-10-04	BUY	Market Buy	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.8M	¥460	+159.6%	¥23M ($148K)
2021-09-01	SELL	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	12.3M	¥458.25	-160.6%	¥587M ($3.8M)

Frequently asked questions

Who has been buying Nagase & Co., Ltd. stock?: 11 distinct investors have filed 13 disclosed large-shareholding filings in Nagase & Co., Ltd. (8012), most recently on 2026-04-07. 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 Nagase & Co., Ltd. have?: Nagase & Co., Ltd. has 13 buy-side and 22 sell-side disclosures on record, covering ¥4.3B ($27.5M) in total reported value, spanning 2021-09-01 to 2026-04-07.
Where does StockDrifts get Nagase & 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 Nagase & Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.