Who has been buying Inaba Denki Sangyo Co.,Ltd. stock?

4 distinct investors have filed 9 disclosed large-shareholding filings in Inaba Denki Sangyo Co.,Ltd. (9934), most recently on 2025-09-19. 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 Inaba Denki Sangyo Co.,Ltd. have?

Inaba Denki Sangyo Co.,Ltd. has 9 buy-side and 2 sell-side disclosures on record, covering ¥1.3B ($8.1M) in total reported value, spanning 2021-03-22 to 2025-09-19.

Where does StockDrifts get Inaba Denki Sangyo 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.

Inaba Denki Sangyo Co.,Ltd. 9934

Company

因幡電機産業株式会社Inaba Denki Sangyo Co.,Ltd.

Investors

Buys

Total Value

¥1.3B ($8.1M)

Avg Return

+72.08%

Last Filing

2025-09-19

Inaba Denki Sangyo Co.,Ltd. (9934) has 9 disclosed large-shareholding filings and 2 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥1.3B ($8.1M) in reported transaction value. The earliest filing StockDrifts holds for Inaba Denki Sangyo Co.,Ltd. is dated 2021-03-22; the most recent is 2025-09-19. 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 +72.08%, 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
2026-06-12	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	505.0K	¥2,694	+0.1%	¥243M ($1.6M)
2026-06-12	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	2.8M	¥2,694	+0.1%	¥7.6B ($49.2M)
2026-06-12	BUY	unknown	フィデリティ・マネジメント・アンド・リサーチ・ジャパン株式会社	other	934.7K	¥2,694	+0.1%	¥2.5B ($16.2M)
2026-06-12	BUY	unknown	フィデリティインスティテューショナルアセットマネジメントトラストカンパニー Fidelity Institutional Asset Management Trust Company	other	591.8K	¥2,694	+0.1%	¥1.6B ($10.3M)
2026-06-12	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	414.3K	¥2,694	+0.1%	¥1.1B ($7.2M)
2026-06-12	BUY	unknown	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	891.4K	¥2,694	+0.1%	¥2.4B ($15.5M)
2026-06-12	SELL	unknown	フィデリティ・マネジメント・アンド・リサーチ・ジャパン株式会社	other	424.7K	¥2,694	-0.1%	¥1.4B ($8.9M)
2026-06-12	BUY	unknown	フィデリティインスティテューショナルアセットマネジメントトラストカンパニー Fidelity Institutional Asset Management Trust Company	other	591.8K	¥2,694	+0.1%	¥1.6B ($10.3M)
2026-06-12	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	416.7K	¥2,694	+0.1%	¥15M ($98K)
2026-06-12	BUY	Market Buy	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	1.5M	¥2,694	+0.1%	¥1.6B ($10.5M)
2026-06-12	BUY	unknown	フィデリティ・マネジメント・アンド・リサーチ・ジャパン株式会社	other	424.7K	¥2,694	+0.1%	¥1.1B ($7.4M)
2026-06-12	BUY	unknown	エフエムアールインベストメントマネジメントユーケーリミテッドLimited) FMR Investment Management (UK	other	111.6K	¥2,694	+0.1%	¥301M ($1.9M)
2026-06-12	SELL	unknown	フィデリティインスティテューショナルアセットマネジメントトラストカンパニー Fidelity Institutional Asset Management Trust Company	other	576.5K	¥2,694	-0.1%	¥46M ($294K)
2026-06-12	BUY	Market Buy	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	1.9M	¥2,694	+0.1%	¥1.1B ($7.1M)
2026-06-12	BUY	unknown	フィデリティ・マネジメント・アンド・リサーチ・ジャパン株式会社	other	424.7K	¥2,694	+0.1%	¥1.1B ($7.4M)
2026-06-12	BUY	Market Buy	エフエムアールインベストメントマネジメントユーケーリミテッドLimited) FMR Investment Management (UK	other	120.2K	¥2,694	+0.1%	¥15M ($98K)
2026-06-12	BUY	Market Buy	フィデリティインスティテューショナルアセットマネジメントトラストカンパニー Fidelity Institutional Asset Management Trust Company	other	708.2K	¥2,694	+0.1%	¥365M ($2.4M)
2026-06-12	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	696.3K	¥2,694	+0.1%	¥502M ($3.2M)
2026-06-12	BUY	Market Buy	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	2.1M	¥2,694	+0.1%	¥669M ($4.3M)
2026-06-12	SELL	unknown	フィデリティ・マネジメント・アンド・リサーチ・ジャパン株式会社	other	322.3K	¥2,694	-0.1%	¥274M ($1.8M)
2026-06-12	BUY	Market Buy	エフエムアールインベストメントマネジメントユーケーリミテッドLimited) FMR Investment Management (UK	other	180.3K	¥2,694	+0.1%	¥167M ($1.1M)
2026-06-12	BUY	Market Buy	フィデリティインスティテューショナルアセットマネジメントトラストカンパニー Fidelity Institutional Asset Management Trust Company	other	809.4K	¥2,694	+0.1%	¥258M ($1.7M)
2026-06-12	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	840.9K	¥2,694	+0.1%	¥395M ($2.5M)
2026-06-12	BUY	Market Buy	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	2.6M	¥2,694	+0.1%	¥1.3B ($8.1M)
2026-06-12	SELL	unknown	フィデリティ・マネジメント・アンド・リサーチ・ジャパン株式会社	other	202.6K	¥2,694	-0.1%	¥319M ($2.1M)
2026-06-12	BUY	unknown	エフエムアールインベストメントマネジメントユーケーリミテッドLimited) FMR Investment Management (UK	other	180.3K	¥2,694	+0.1%	¥486M ($3.1M)
2026-06-12	SELL	unknown	フィデリティインスティテューショナルアセットマネジメントトラストカンパニー Fidelity Institutional Asset Management Trust Company	other	799.1K	¥2,694	-0.1%	¥15M ($98K)
2026-06-12	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	924.9K	¥2,694	+0.1%	¥228M ($1.5M)
2026-06-12	BUY	Market Buy	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	3.2M	¥2,694	+0.1%	¥1.6B ($10.3M)
2025-09-19	BUY	Market Buy	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	1.3M	¥2,176	+22.7%	¥87M ($558K)
2025-09-19	BUY	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	1.4M	¥2,176	+22.7%	¥3.1B ($20.1M)
2025-09-19	BUY	Market Buy	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	160.0K	¥2,176	+22.7%	¥348M ($2.2M)
2024-11-07	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	1.3M	¥1,940.5	+37.5%	¥2.4B ($15.7M)
2024-11-07	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	1.4M	¥1,940.5	+37.5%	¥2.8B ($17.8M)
2024-11-07	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	160.0K	¥1,940.5	+37.5%	¥310M ($2.0M)
2023-12-21	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	1.1M	¥1,672.5	-59.6%	¥736M ($4.7M)
2023-12-21	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	1.5M	¥1,672.5	-59.6%	¥425M ($2.7M)
2023-12-21	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	160.0K	¥1,672.5	+59.6%	¥268M ($1.7M)
2023-04-21	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	5.1M	¥1,502.5	+77.6%	¥856M ($5.5M)
2023-02-22	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	4.6M	¥1,393	+91.6%	¥802M ($5.2M)
2022-02-22	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	4.0M	¥1,311.5	+103.5%	¥770M ($5.0M)
2021-11-22	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	3.4M	¥1,277.5	+108.9%	¥742M ($4.8M)
2021-03-22	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	2.8M	¥1,151.477	+131.8%	¥3.3B ($21.0M)

Frequently asked questions

Who has been buying Inaba Denki Sangyo Co.,Ltd. stock?: 4 distinct investors have filed 9 disclosed large-shareholding filings in Inaba Denki Sangyo Co.,Ltd. (9934), most recently on 2025-09-19. 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 Inaba Denki Sangyo Co.,Ltd. have?: Inaba Denki Sangyo Co.,Ltd. has 9 buy-side and 2 sell-side disclosures on record, covering ¥1.3B ($8.1M) in total reported value, spanning 2021-03-22 to 2025-09-19.
Where does StockDrifts get Inaba Denki Sangyo 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 Inaba Denki Sangyo Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.