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

10 distinct investors have filed 13 disclosed large-shareholding filings in Neturen Co., Ltd. (5976), most recently on 2025-06-30. 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 Neturen Co., Ltd. have?

Neturen Co., Ltd. has 13 buy-side and 7 sell-side disclosures on record, covering ¥3.3B ($21.5M) in total reported value, spanning 2021-03-19 to 2025-06-30.

Where does StockDrifts get Neturen 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.

Neturen Co., Ltd. 5976

Company

高周波熱錬株式会社Neturen Co., Ltd.

Investors

Buys

Total Value

¥3.3B ($21.5M)

Avg Return

+66.39%

Last Filing

2025-06-30

Neturen Co., Ltd. (5976) has 13 disclosed large-shareholding filings and 7 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥3.3B ($21.5M) in reported transaction value. The earliest filing StockDrifts holds for Neturen Co., Ltd. is dated 2021-03-19; the most recent is 2025-06-30. 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 +66.39%, 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
2025-06-30	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.4M	¥1,089	+21.3%	¥1.6B ($10.1M)
2025-06-30	BUY	negotiated	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	11.4K	¥1,089	+21.3%	¥1.0B ($6.7M)
2025-06-30	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	179.7K	¥1,089	+21.3%	¥19M ($121K)
2025-06-30	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	967.0K	¥1,089	-21.3%	¥507M ($3.3M)
2025-03-31	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	81.1K	¥968	+36.5%	¥79M ($507K)
2025-03-31	SELL	Market Buy	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	162.6K	¥968	-36.5%	¥3M ($22K)
2025-03-31	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.4M	¥968	+36.5%	¥347M ($2.2M)
2025-03-31	BUY	Market Buy	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.4M	¥968	+36.5%	¥97M ($625K)
2024-07-29	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	9.6K	¥1,080	+22.3%	¥890M ($5.7M)
2024-07-29	BUY	Market Buy	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	177.9K	¥1,080	+22.3%	¥64M ($414K)
2024-07-29	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.2M	¥1,080	+22.3%	¥245M ($1.6M)
2024-07-29	BUY	Market Buy	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.4M	¥1,080	+22.3%	¥237M ($1.5M)
2023-08-01	SELL	unknown	日本バリュー・インベスターズ株式会社 Nippon Value Investors KK	activist	1.6M	¥1,056	-25.1%	¥735M ($4.7M)
2022-04-13	SELL	unknown	日本バリュー・インベスターズ株式会社 Nippon Value Investors KK	activist	2.4M	¥573	-130.5%	¥75M ($484K)
2022-01-21	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	1.6M	¥596	+121.6%	¥942M ($6.1M)
2022-01-21	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	343.3K	¥596	+121.6%	¥112M ($724K)
2021-11-19	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	761.5K	¥586	+125.4%	¥33M ($215K)
2021-11-19	SELL	unknown	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	1.2M	¥586	-125.4%	¥23M ($149K)
2021-11-19	SELL	unknown	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	unknown	0	¥586	-125.4%	¥439M ($2.8M)
2021-04-02	SELL	unknown	日本バリュー・インベスターズ株式会社 Nippon Value Investors KK	other	2.7M	¥479.429	-175.5%	¥533M ($3.4M)
2021-03-19	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	2.2M	¥539.607	+144.8%	¥1.2B ($7.5M)
2021-03-19	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	153.5K	¥539.607	+144.8%	¥83M ($534K)

Frequently asked questions

Who has been buying Neturen Co., Ltd. stock?: 10 distinct investors have filed 13 disclosed large-shareholding filings in Neturen Co., Ltd. (5976), most recently on 2025-06-30. 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 Neturen Co., Ltd. have?: Neturen Co., Ltd. has 13 buy-side and 7 sell-side disclosures on record, covering ¥3.3B ($21.5M) in total reported value, spanning 2021-03-19 to 2025-06-30.
Where does StockDrifts get Neturen 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 Neturen Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.