Who has been buying Nihon Denkei Co.,Ltd. stock?

6 distinct investors have filed 3 disclosed large-shareholding filings in Nihon Denkei Co.,Ltd. (9908), most recently on 2025-08-05. 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 Nihon Denkei Co.,Ltd. have?

Nihon Denkei Co.,Ltd. has 3 buy-side and 4 sell-side disclosures on record, covering ¥1.0B ($6.6M) in total reported value, spanning 2022-03-31 to 2025-08-05.

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.

Nihon Denkei Co.,Ltd. 9908

Company

日本電計株式会社Nihon Denkei Co.,Ltd.

Investors

Buys

Total Value

¥1.0B ($6.6M)

Avg Return

+61.94%

Last Filing

2025-08-05

Nihon Denkei Co.,Ltd. (9908) has 3 disclosed large-shareholding filings and 4 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥1.0B ($6.6M) in reported transaction value. The earliest filing StockDrifts holds for Nihon Denkei Co.,Ltd. is dated 2022-03-31; the most recent is 2025-08-05. Across these filings the average return since disclosure is +61.94%, 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
2025-08-05	BUY	unknown	日本電計取引先持株会理事長小林一夫 NIHONDENKEITORIHIKISAKIMOCHIKABUKAI RIJICHO MASAHIKO OTAKI	strategic	591.8K	¥2,132	-	-
2025-08-05	BUY	unknown	日本電計取引先持株会理事長小林一夫 NIHONDENKEITORIHIKISAKIMOCHIKABUKAI RIJICHO MASAHIKO OTAKI	strategic	591.8K	¥2,132	-	¥1.3B ($8.1M)
2025-05-16	SELL	unknown	有限会社高田興産 YUUGENGAISHATAKADAKOUSAN	other	1.0M	¥2,019	-46.6%	¥267M ($1.7M)
2025-05-16	SELL	unknown	有限会社高田興産 YUUGENGAISHATAKADAKOUSAN	other	1.0M	¥2,019	-46.6%	¥270M ($1.7M)
2025-05-16	BUY	unknown	高田寛 Hiroshi Takada	passive	751	¥2,019	-	-
2024-09-12	BUY	Market Buy	岩崎通信機株式会社 Iwasaki Tsushinki Co., Ltd.	passive	66.3K	¥1,772	-	¥118M ($758K)
2024-09-12	BUY	Market Buy	あいホールディングス株式会社 Ai Holdings Corporation	passive	2.3M	¥1,772	+67.0%	¥111M ($716K)
2022-09-13	SELL	unknown	ニッポン・アクティブ・バリュー・ファンド(NIPPON ACTIVE VALUE FUND PLC) NIPPON ACTIVE VALUE FUND PLC	activist	514.0K	¥1,440	-105.5%	¥175M ($1.1M)
2022-08-19	SELL	unknown	ニッポン・アクティブ・バリュー・ファンド(NIPPON ACTIVE VALUE FUND PLC) NIPPON ACTIVE VALUE FUND PLC	activist	635.4K	¥1,419	-108.5%	¥188M ($1.2M)
2022-07-26	BUY	unknown	日本電計取引先持株会理事長大滝正彦 NIHONDENKEITORIHIKISAKIMOCHIKABUKAI RIJICHO MASAHIKO OTAKI	strategic	591.8K	¥1,450	+104.1%	¥858M ($5.5M)
2022-03-31	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド(NIPPON ACTIVE VALUE FUND PLC) NIPPON ACTIVE VALUE FUND PLC	activist	512.4K	¥1,336	+121.5%	¥52M ($333K)

Frequently asked questions

Who has been buying Nihon Denkei Co.,Ltd. stock?: 6 distinct investors have filed 3 disclosed large-shareholding filings in Nihon Denkei Co.,Ltd. (9908), most recently on 2025-08-05. 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 Nihon Denkei Co.,Ltd. have?: Nihon Denkei Co.,Ltd. has 3 buy-side and 4 sell-side disclosures on record, covering ¥1.0B ($6.6M) in total reported value, spanning 2022-03-31 to 2025-08-05.
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.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.