Who has been buying Maeda Kosen Co., Ltd. stock?

12 distinct investors have filed 35 disclosed large-shareholding filings in Maeda Kosen Co., Ltd. (7821), 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 Maeda Kosen Co., Ltd. have?

Maeda Kosen Co., Ltd. has 35 buy-side and 34 sell-side disclosures on record, covering ¥14.4B ($93.2M) in total reported value, spanning 2021-05-21 to 2026-03-06.

Where does StockDrifts get Maeda Kosen 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.

Maeda Kosen Co., Ltd. 7821

Company

前田工繊株式会社Maeda Kosen Co., Ltd.

Investors

Buys

Total Value

¥14.4B ($93.2M)

Avg Return

-8.25%

Last Filing

2026-03-06

Maeda Kosen Co., Ltd. (7821) has 35 disclosed large-shareholding filings and 34 disclosed disposals on record, filed by 12 distinct investors. Together those filings cover ¥14.4B ($93.2M) in reported transaction value. The earliest filing StockDrifts holds for Maeda Kosen Co., Ltd. is dated 2021-05-21; 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 -8.25%, 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
2026-07-23	SELL	unknown	エフアイエーエムエルエルシー FIAM LLC	other	1.2M	¥1,851	-8.8%	¥25M ($163K)
2026-07-23	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	380.0K	¥1,851	+8.8%	¥703M ($4.5M)
2026-07-23	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	1.2M	¥1,851	+8.8%	¥1.9B ($12.2M)
2026-07-23	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	917.2K	¥1,851	+8.8%	¥13M ($81K)
2026-07-23	SELL	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	789.0K	¥1,851	-8.8%	¥1.8B ($11.8M)
2026-06-17	BUY	Market Buy	スパークス・アセット・マネジメント株式会社 SPARX Asset Management Co., Ltd.	passive	4.9M	¥1,753	+4.7%	¥1.3B ($8.4M)
2026-06-05	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	857.4K	¥1,790	+3.1%	¥1.5B ($9.9M)
2026-06-05	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	1.2M	¥1,790	+3.1%	¥646M ($4.2M)
2026-06-05	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	380.0K	¥1,790	+3.1%	¥680M ($4.4M)
2026-06-05	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	425.0K	¥1,790	+3.1%	¥761M ($4.9M)
2026-06-05	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	681.4K	¥1,790	+3.1%	¥1.2B ($7.9M)
2026-06-05	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	1.1M	¥1,790	+3.1%	¥1.9B ($12.5M)
2026-06-05	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	380.0K	¥1,790	+3.1%	¥680M ($4.4M)
2026-06-05	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	925.7K	¥1,790	+3.1%	¥902M ($5.8M)
2026-06-05	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	787.9K	¥1,790	+3.1%	¥195M ($1.3M)
2026-06-05	SELL	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	806.1K	¥1,790	-3.1%	¥500M ($3.2M)
2026-06-05	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	380.0K	¥1,790	+3.1%	¥680M ($4.4M)
2026-06-05	SELL	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	172.9K	¥1,790	-3.1%	¥1.4B ($8.7M)
2026-06-05	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	914.0K	¥1,790	+3.1%	¥219M ($1.4M)
2026-06-05	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	1.2M	¥1,790	+3.1%	¥37M ($236K)
2026-06-05	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	1.8M	¥1,790	+3.1%	¥1.7B ($11.2M)
2026-03-06	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	4.1M	¥2,201	-14.5%	¥1.5B ($9.9M)
2025-12-03	BUY	Market Buy	スパークス・アセット・マネジメント株式会社 SPARX Asset Management Co., Ltd.	passive	4.1M	¥1,946	-3.3%	¥1.4B ($8.9M)
2025-10-07	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	3.4M	¥1,955	-3.8%	¥6.7B ($43.2M)
2025-06-30	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	16.9K	¥1,899	-0.9%	¥2.5B ($15.8M)
2025-06-30	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	1.2M	¥1,899	+0.9%	¥78M ($500K)
2025-06-30	SELL	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.4M	¥1,899	+0.9%	¥1.4B ($8.8M)
2025-06-19	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	974.7K	¥1,896	-0.8%	¥1.8B ($11.9M)
2025-06-19	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	1.4M	¥1,896	+0.8%	¥2.0B ($13.0M)
2025-02-18	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	70.8K	¥1,845	+1.9%	¥131M ($843K)
2025-02-18	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	1.3M	¥1,845	+1.9%	¥2.4B ($15.2M)
2025-02-18	BUY	Market Buy	スパークス・アセット・マネジメント株式会社 SPARX Asset Management Co., Ltd.	passive	3.4M	¥1,845	+1.9%	¥6.3B ($40.8M)
2025-02-18	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	2.1M	¥1,845	+1.9%	¥4.0B ($25.6M)
2024-09-20	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	976.6K	¥1,770	-6.3%	¥217M ($1.4M)
2024-09-20	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	2.4M	¥1,770	-6.3%	¥1.2B ($7.7M)
2024-04-22	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	685.1K	¥1,710	-10.0%	¥1.1B ($7.0M)
2024-04-22	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	523.9K	¥1,710	+10.0%	¥593M ($3.8M)
2024-04-22	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	249.1K	¥1,710	+10.0%	¥426M ($2.7M)
2024-04-05	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	179.1K	¥1,735	+8.4%	¥6M ($36K)
2024-04-05	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	1.3M	¥1,735	+8.4%	¥1.1B ($7.4M)
2024-04-05	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	251.1K	¥1,735	-8.4%	¥1.7B ($11.2M)
2024-03-25	BUY	subscription	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	173.9K	¥1,847.5	+1.8%	¥6M ($38K)
2024-03-25	BUY	subscription	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	692.6K	¥1,847.5	+1.8%	¥495M ($3.2M)
2024-03-25	SELL	subscription	野村證券株式会社 Nomura Securities Co.,Ltd.	other	1.3M	¥1,847.5	-1.8%	¥1.3B ($8.4M)
2024-03-22	SELL	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	518.6K	¥1,850	-1.7%	¥101M ($655K)
2024-03-22	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	1.5M	¥1,850	+1.7%	¥668M ($4.3M)
2024-03-07	SELL	subscription	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	171.3K	¥1,757.5	-7.0%	¥215M ($1.4M)
2024-03-07	BUY	subscription	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	414.8K	¥1,757.5	+7.0%	¥130M ($841K)
2024-03-07	SELL	subscription	野村證券株式会社 Nomura Securities Co.,Ltd.	other	2.1M	¥1,757.5	-7.0%	¥91M ($585K)
2024-03-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	574.5K	¥1,732.5	+8.6%	¥995M ($6.4M)

Showing the 50 most recent of 96 filings.

Frequently asked questions

Who has been buying Maeda Kosen Co., Ltd. stock?: 12 distinct investors have filed 35 disclosed large-shareholding filings in Maeda Kosen Co., Ltd. (7821), 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 Maeda Kosen Co., Ltd. have?: Maeda Kosen Co., Ltd. has 35 buy-side and 34 sell-side disclosures on record, covering ¥14.4B ($93.2M) in total reported value, spanning 2021-05-21 to 2026-03-06.
Where does StockDrifts get Maeda Kosen 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 Maeda Kosen Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.