Who has been buying Hosokawa Micron Corporation stock?

17 distinct investors have filed 28 disclosed large-shareholding filings in Hosokawa Micron Corporation (6277), most recently on 2026-04-07. 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 Hosokawa Micron Corporation have?

Hosokawa Micron Corporation has 28 buy-side and 12 sell-side disclosures on record, covering ¥15.0B ($96.9M) in total reported value, spanning 2021-06-04 to 2026-04-07.

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.

Hosokawa Micron Corporation 6277

Company

ホソカワミクロン株式会社Hosokawa Micron Corporation

Investors

Buys

Total Value

¥15.0B ($96.9M)

Avg Return

+59.37%

Last Filing

2026-04-07

Hosokawa Micron Corporation (6277) has 28 disclosed large-shareholding filings and 12 disclosed disposals on record, filed by 17 distinct investors. Together those filings cover ¥15.0B ($96.9M) in reported transaction value. The earliest filing StockDrifts holds for Hosokawa Micron Corporation is dated 2021-06-04; the most recent is 2026-04-07. Across these filings the average return since disclosure is +59.37%, 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
2026-06-10	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	270.4K	¥4,960	-20.6%	¥62M ($403K)
2026-06-10	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	201.4K	¥4,960	+20.6%	¥453M ($2.9M)
2026-06-10	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	19.0K	¥4,960	-	-
2026-06-10	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	469.3K	¥4,960	+20.6%	¥460M ($3.0M)
2026-06-09	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	110.0K	¥5,040	+18.6%	¥555M ($3.6M)
2026-06-09	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	282.5K	¥5,040	+18.6%	¥1.4B ($9.2M)
2026-06-09	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	18.7K	¥5,040	+18.6%	¥94M ($607K)
2026-06-09	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	376.3K	¥5,040	+18.6%	¥1.9B ($12.2M)
2026-05-29	BUY	Market Buy	エイシオンパートナーズリミテッド(Acion Partners Limited) Acion Partners Limited	activist	1.2M	¥5,270	+13.5%	¥837M ($5.4M)
2026-05-21	BUY	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	61.5K	¥5,410	+10.5%	¥85M ($549K)
2026-05-21	SELL	Market Buy	シュローダー・インベストメント・マネジメント株式会社	passive	782.0K	¥5,410	-10.5%	¥119M ($769K)
2026-04-07	BUY	unknown	みずほ証券株式会社	other	430.8K	¥6,170	-	-
2026-04-07	SELL	unknown	アセットマネジメントOne株式会社	other	275.1K	¥6,170	+3.1%	¥602M ($3.9M)
2026-03-23	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	960.1K	¥5,580	+7.2%	¥957M ($6.2M)
2026-03-23	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	960.1K	¥5,580	+7.2%	¥957M ($6.2M)
2026-03-05	BUY	Market Buy	エイシオン・パートナーズ・リミテッド(Acion Partners Limited) Acion Partners Limited	activist	996.0K	¥6,220	-3.9%	¥1.3B ($8.1M)
2026-01-22	BUY	unknown	アセットマネジメントOne株式会社	other	373.1K	¥6,130	-	-
2026-01-22	BUY	unknown	みずほ証券株式会社	other	430.3K	¥6,130	-	-
2026-01-09	BUY	unknown	みずほ証券株式会社	other	431.3K	¥5,760	+3.8%	¥2.5B ($16.0M)
2026-01-09	BUY	unknown	アセットマネジメントOne株式会社	other	373.3K	¥5,760	+3.8%	¥2.2B ($13.9M)
2025-11-21	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	787.6K	¥5,290	+13.0%	¥4.2B ($26.9M)
2025-11-21	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	787.6K	¥5,290	+13.0%	¥4.2B ($26.9M)
2025-11-21	BUY	unknown	エイシオン・パートナーズ・リミテッド(Acion Partners Limited) Acion Partners Limited	activist	793.8K	¥5,290	+13.0%	¥4.2B ($27.1M)
2025-11-06	SELL	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	44.9K	¥5,690	-5.1%	¥45M ($289K)
2025-11-06	SELL	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	803.4K	¥5,690	-5.1%	¥1.0B ($6.7M)
2025-09-19	BUY	Market Buy	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	220.0K	¥5,610	-	-
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	373.8K	¥5,610	+6.6%	¥132M ($854K)
2025-09-19	SELL	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	221.0K	¥5,610	-6.6%	¥44M ($285K)
2024-09-24	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	130.4K	¥4,095	+46.0%	¥534M ($3.4M)
2024-09-24	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	564.0K	¥4,095	+46.0%	¥2.3B ($14.9M)
2024-09-24	BUY	unknown	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	104.0K	¥4,095	+46.0%	¥426M ($2.7M)
2024-09-04	SELL	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	53.6K	¥4,160	-43.8%	¥124M ($802K)
2024-09-04	BUY	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	986.7K	¥4,160	+43.8%	¥4.1B ($26.2M)
2024-07-04	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	220.0K	¥4,215	+41.9%	¥927M ($6.0M)
2024-07-04	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	351.2K	¥4,215	+41.9%	¥1.5B ($9.6M)
2024-07-04	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	227.7K	¥4,215	+41.9%	¥960M ($6.2M)
2023-10-20	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	564.0K	¥4,140	+44.4%	¥208M ($1.3M)
2023-10-20	SELL	unknown	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	130.8K	¥4,140	-44.4%	¥65M ($420K)
2023-10-20	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	13.3K	¥4,140	-44.4%	¥606M ($3.9M)
2023-10-19	BUY	Market Buy	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	220.0K	¥4,090	+46.2%	¥77M ($498K)
2023-10-19	SELL	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	319.4K	¥4,090	-46.2%	¥643M ($4.2M)
2023-10-19	BUY	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	197.2K	¥4,090	+46.2%	¥6M ($42K)
2023-06-21	BUY	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	82.9K	¥3,190	+87.5%	¥45M ($291K)
2023-06-21	BUY	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	1.1M	¥3,190	+87.5%	¥587M ($3.8M)
2023-04-20	BUY	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	75.3K	¥2,898	+106.3%	¥184M ($1.2M)
2023-04-20	BUY	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	1.0M	¥2,898	-	¥3.0B ($19.5M)
2023-03-22	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	220.0K	¥2,826	-111.6%	¥506M ($3.3M)
2023-03-22	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	522.6K	¥2,826	+111.6%	¥453M ($2.9M)
2023-03-22	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	213.7K	¥2,826	+111.6%	¥88M ($565K)
2023-03-17	SELL	unknown	株式会社日清製粉グループ本社 Nisshin Seifun Group Inc.	unknown	0	¥2,829	-111.4%	¥28M ($182K)

Showing the 50 most recent of 58 filings.

Frequently asked questions

Who has been buying Hosokawa Micron Corporation stock?: 17 distinct investors have filed 28 disclosed large-shareholding filings in Hosokawa Micron Corporation (6277), most recently on 2026-04-07. 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 Hosokawa Micron Corporation have?: Hosokawa Micron Corporation has 28 buy-side and 12 sell-side disclosures on record, covering ¥15.0B ($96.9M) in total reported value, spanning 2021-06-04 to 2026-04-07.
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.