Who has been buying Micronics Japan Co., Ltd. stock?

16 distinct investors have filed 45 disclosed large-shareholding filings in Micronics Japan Co., Ltd. (6871), most recently on 2026-05-07. 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 Micronics Japan Co., Ltd. have?

Micronics Japan Co., Ltd. has 45 buy-side and 39 sell-side disclosures on record, covering ¥350.3B ($2.3B) in total reported value, spanning 2022-07-19 to 2026-05-07.

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.

Micronics Japan Co., Ltd. 6871

Company

株式会社日本マイクロニクスMicronics Japan Co., Ltd.

Investors

Buys

Total Value

¥350.3B ($2.3B)

Avg Return

+199.36%

Last Filing

2026-05-07

Micronics Japan Co., Ltd. (6871) has 45 disclosed large-shareholding filings and 39 disclosed disposals on record, filed by 16 distinct investors. Together those filings cover ¥350.3B ($2.3B) in reported transaction value. The earliest filing StockDrifts holds for Micronics Japan Co., Ltd. is dated 2022-07-19; the most recent is 2026-05-07. Across these filings the average return since disclosure is +199.36%, 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
2026-09-07	BUY	unknown	みずほ証券株式会社	other	49.8K	¥12,920	-	¥643M ($4.2M)
2026-09-07	SELL	unknown	アセットマネジメントOne株式会社	other	2.0M	¥12,920	-3.6%	¥6.4B ($41.4M)
2026-09-04	BUY	Market Buy	野村アセットマネジメント株式会社	other	3.8M	¥11,940	+12.1%	¥1.4B ($8.9M)
2026-09-04	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	5.6K	¥11,940	-12.1%	¥2.8B ($18.2M)
2026-09-04	BUY	Market Buy	野村證券株式会社	other	173.7K	¥11,940	+12.1%	¥4.7B ($30.2M)
2026-07-27	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	240.1K	¥14,810	-	¥3.6B ($22.9M)
2026-07-27	SELL	unknown	野村證券株式会社	other	-220.2K	¥14,810	+8.3%	-
2026-07-27	SELL	unknown	野村アセットマネジメント株式会社	other	3.7M	¥14,810	+9.6%	¥1.9B ($12.2M)
2026-07-07	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-16.3K	¥15,160	-	-
2026-07-07	BUY	Market Buy	野村證券株式会社	other	330.3K	¥15,160	-11.7%	¥5.0B ($32.5M)
2026-07-07	SELL	unknown	野村アセットマネジメント株式会社	other	3.9M	¥15,160	+11.7%	¥303M ($2.0M)
2026-05-27	SELL	unknown	野村證券株式会社	other	244	¥15,660	+14.5%	¥5.3B ($34.0M)
2026-05-27	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	423.1K	¥15,660	-	¥6.6B ($42.7M)
2026-05-27	SELL	unknown	野村アセットマネジメント株式会社	other	3.9M	¥15,660	+14.5%	¥251M ($1.6M)
2026-05-07	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-6.9K	¥14,080	-1.6%	¥2.0B ($13.1M)
2026-05-07	SELL	unknown	野村證券株式会社	other	336.1K	¥14,080	+4.9%	¥1.1B ($6.9M)
2026-05-07	SELL	unknown	野村アセットマネジメント株式会社	other	3.9M	¥14,080	+4.9%	¥902M ($5.8M)
2026-04-30	BUY	unknown	野村證券株式会社	other	413.7K	¥12,960	-	-
2026-04-30	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	136.4K	¥12,960	-	-
2026-04-30	SELL	unknown	野村アセットマネジメント株式会社	other	4.0M	¥12,960	-3.3%	¥207M ($1.3M)
2026-04-28	BUY	unknown	野村證券株式会社	other	412.5K	¥13,090	-	¥5.4B ($34.8M)
2026-04-28	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	134.1K	¥13,090	-2.3%	¥6.1B ($39.5M)
2026-04-28	SELL	unknown	野村アセットマネジメント株式会社	other	4.0M	¥13,090	-2.3%	¥210M ($1.4M)
2026-04-23	SELL	unknown	野村證券株式会社	other	7.3K	¥12,030	-11.3%	¥963M ($6.2M)
2026-04-23	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	604.9K	¥12,030	-	¥7.3B ($47.0M)
2026-04-23	SELL	unknown	野村アセットマネジメント株式会社	other	4.0M	¥12,030	-11.3%	¥3.6B ($23.3M)
2026-03-19	SELL	unknown	野村アセットマネジメント株式会社	other	4.3M	¥10,880	-23.1%	¥4.4B ($28.1M)
2026-03-19	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-1.6K	¥10,880	-16.4%	¥20M ($128K)
2026-03-19	BUY	unknown	野村證券株式会社	other	86.1K	¥10,880	-	¥937M ($6.0M)
2026-03-06	SELL	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	unknown	0	¥11,270	-18.8%	¥5.2B ($33.8M)
2026-03-06	SELL	unknown	アセットマネジメントOne株式会社	other	2.5M	¥11,270	-18.8%	¥3.5B ($22.7M)
2026-03-06	SELL	unknown	みずほ証券株式会社	other	25.1K	¥11,270	-18.8%	¥226M ($1.5M)
2026-02-20	SELL	unknown	野村證券株式会社	other	7.3K	¥11,900	-12.5%	¥810M ($5.2M)
2026-02-20	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	91.8K	¥11,900	-	¥1.1B ($7.0M)
2026-02-20	SELL	unknown	野村アセットマネジメント株式会社	other	4.7M	¥11,900	-12.5%	¥4.1B ($26.4M)
2026-01-16	SELL	Market Buy	野村證券株式会社	other	76.9K	¥8,720	-53.6%	¥489M ($3.2M)
2026-01-16	BUY	Market Buy	野村アセットマネジメント株式会社	other	5.0M	¥8,720	+53.6%	¥698M ($4.5M)
2025-12-23	BUY	Market Buy	野村證券株式会社	other	130.1K	¥6,840	+95.8%	¥219M ($1.4M)
2025-12-23	BUY	Market Buy	野村アセットマネジメント株式会社	other	5.0M	¥6,840	+95.8%	¥2.4B ($15.4M)
2025-10-27	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	100.3K	¥7,690	-	¥772M ($5.0M)
2025-10-27	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	4.6M	¥7,690	+74.1%	¥3.1B ($20.1M)
2025-10-01	SELL	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.3K	¥5,660	-136.6%	¥1.4B ($8.8M)
2025-10-01	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	4.2M	¥5,660	+136.6%	¥1.7B ($10.7M)
2025-09-05	BUY	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.8M	¥4,485	+198.6%	¥1.3B ($8.5M)
2025-09-05	BUY	Market Buy	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	42.3K	¥4,485	-	¥189M ($1.2M)
2025-09-05	BUY	Market Buy	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	466.2K	¥4,485	+198.6%	¥610M ($3.9M)
2025-08-27	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	242.5K	¥4,665	+187.0%	¥113.9B ($734.9M)
2025-08-27	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	3.9M	¥4,665	+187.0%	¥1.1B ($7.2M)
2025-08-27	SELL	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-43.6K	¥4,665	-171.4%	¥915M ($5.9M)
2025-08-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	153.9K	¥4,360	-	¥671M ($4.3M)

Showing the 50 most recent of 115 filings.

Frequently asked questions

Who has been buying Micronics Japan Co., Ltd. stock?: 16 distinct investors have filed 45 disclosed large-shareholding filings in Micronics Japan Co., Ltd. (6871), most recently on 2026-05-07. 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 Micronics Japan Co., Ltd. have?: Micronics Japan Co., Ltd. has 45 buy-side and 39 sell-side disclosures on record, covering ¥350.3B ($2.3B) in total reported value, spanning 2022-07-19 to 2026-05-07.
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.