Who has been buying Nittetsu Mining Co., Ltd. stock?

10 distinct investors have filed 7 disclosed large-shareholding filings in Nittetsu Mining Co., Ltd. (1515), most recently on 2026-03-06. 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 Nittetsu Mining Co., Ltd. have?

Nittetsu Mining Co., Ltd. has 7 buy-side and 3 sell-side disclosures on record, covering ¥820M ($5.3M) in total reported value, spanning 2022-12-19 to 2026-03-06.

Where does StockDrifts get Nittetsu Mining 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.

Nittetsu Mining Co., Ltd. 1515

Company

日鉄鉱業株式会社Nittetsu Mining Co., Ltd.

Investors

Buys

Total Value

¥820M ($5.3M)

Avg Return

+99.01%

Last Filing

2026-03-06

Nittetsu Mining Co., Ltd. (1515) has 7 disclosed large-shareholding filings and 3 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥820M ($5.3M) in reported transaction value. The earliest filing StockDrifts holds for Nittetsu Mining Co., Ltd. is dated 2022-12-19; the most recent is 2026-03-06. 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 +99.01%, 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
2026-08-07	SELL	unknown	アセットマネジメントOne株式会社	other	1.0M	¥3,175	-6.0%	¥152M ($983K)
2026-08-07	BUY	unknown	みずほ信託銀行株式会社	strategic	200.0K	¥3,175	+6.0%	¥635M ($4.1M)
2026-08-07	SELL	unknown	みずほ証券株式会社	other	20.1K	¥3,175	-6.0%	¥2.6B ($16.6M)
2026-08-07	BUY	unknown	株式会社みずほ銀行	strategic	2.9M	¥3,175	+6.0%	¥9.3B ($60.2M)
2026-03-06	SELL	Market Buy	アセットマネジメントOne株式会社	other	1.1M	¥3,235	+17.3%	¥2.8B ($18.3M)
2026-03-06	BUY	Market Buy	みずほ信託銀行株式会社	strategic	200.0K	¥3,235	-17.3%	¥535M ($3.5M)
2026-03-06	BUY	Market Buy	みずほ証券株式会社	other	833.3K	¥3,235	+17.3%	¥2.2B ($14.4M)
2026-03-06	BUY	Market Buy	株式会社みずほ銀行	strategic	2.9M	¥3,235	-17.3%	¥7.9B ($50.8M)
2025-07-03	BUY	unknown	公益財団法人日鉄鉱業奨学会 Kouekizaidanhoujinnittetsukogyoshougakukai	other	1.3M	¥1,494	+79.1%	¥1.9B ($12.4M)
2025-07-03	BUY	unknown	公益財団法人日鉄鉱業奨学会 Kouekizaidanhoujinnittetsukogyoshougakukai	other	1.3M	¥1,494	+79.1%	¥1.9B ($12.4M)
2025-06-12	BUY	Market Buy	コンチネンタル・ゼネラル・インシュアランス・カンパニー(Continental General Insurance Company) Continental General Insurance Company	activist	1.4M	¥1,496	+78.9%	¥280M ($1.8M)
2025-05-30	BUY	Market Buy	コンチネンタル・ゼネラル・インシュアランス・カンパニー(Continental General Insurance Company) Continental General Insurance Company	activist	1.2M	¥1,402	+90.9%	¥279M ($1.8M)
2025-05-14	BUY	Market Buy	コンチネンタル・ゼネラル・インシュアランス・カンパニー(Continental General Insurance Company) Continental General Insurance Company	activist	1.0M	¥1,354	+97.6%	¥283M ($1.8M)
2025-05-01	BUY	unknown	コンチネンタル・ゼネラル・インシュアランス・カンパニー(Continental General Insurance Company) Continental General Insurance Company	activist	838.0K	¥1,224	+118.6%	¥1.0B ($6.6M)
2025-02-14	SELL	negotiated	日本製鉄株式会社 NIPPON STEEL CORPORATION	strategic	1.6M	¥1,088	-146.0%	¥917M ($5.9M)
2022-12-19	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	70.6K	¥606	+341.6%	¥5M ($33K)
2022-12-19	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	430.8K	¥606	-341.6%	¥105M ($679K)
2022-12-19	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	279.7K	¥606	+341.6%	¥170M ($1.1M)

Frequently asked questions

Who has been buying Nittetsu Mining Co., Ltd. stock?: 10 distinct investors have filed 7 disclosed large-shareholding filings in Nittetsu Mining Co., Ltd. (1515), most recently on 2026-03-06. 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 Nittetsu Mining Co., Ltd. have?: Nittetsu Mining Co., Ltd. has 7 buy-side and 3 sell-side disclosures on record, covering ¥820M ($5.3M) in total reported value, spanning 2022-12-19 to 2026-03-06.
Where does StockDrifts get Nittetsu Mining 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 Nittetsu Mining Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.