Who has been buying Miroku Jyoho Service Co., Ltd. stock?

9 distinct investors have filed 11 disclosed large-shareholding filings in Miroku Jyoho Service Co., Ltd. (9928), most recently on 2025-12-01. 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 Miroku Jyoho Service Co., Ltd. have?

Miroku Jyoho Service Co., Ltd. has 11 buy-side and 4 sell-side disclosures on record, covering ¥23.0B ($148.1M) in total reported value, spanning 2021-03-22 to 2025-12-01.

Where does StockDrifts get Miroku Jyoho Service 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.

Miroku Jyoho Service Co., Ltd. 9928

Company

株式会社ミロク情報サービスMiroku Jyoho Service Co., Ltd.

Investors

Buys

Total Value

¥23.0B ($148.1M)

Avg Return

+6.57%

Last Filing

2025-12-01

Miroku Jyoho Service Co., Ltd. (9928) has 11 disclosed large-shareholding filings and 4 disclosed disposals on record, filed by 9 distinct investors. Together those filings cover ¥23.0B ($148.1M) in reported transaction value. The earliest filing StockDrifts holds for Miroku Jyoho Service Co., Ltd. is dated 2021-03-22; the most recent is 2025-12-01. 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 +6.57%, 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
2026-06-23	BUY	Market Buy	さくら損害保険株式会社	passive	32.7K	¥1,698	+6.8%	¥56M ($358K)
2026-06-23	BUY	Market Buy	株式会社UH7	passive	46.6K	¥1,698	+6.8%	¥79M ($510K)
2026-06-23	BUY	Market Buy	光通信株式会社	passive	1.5M	¥1,698	+6.8%	¥2.6B ($16.9M)
2026-06-10	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	837.9K	¥1,748	+3.3%	¥407M ($2.6M)
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	589.6K	¥1,748	-3.3%	¥898M ($5.8M)
2026-06-09	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	651.8K	¥1,726	+4.6%	¥1.1B ($7.3M)
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	1.2M	¥1,726	+4.6%	¥2.1B ($13.3M)
2025-12-01	BUY	acquisition	株式会社HNホールディングス HN Holdings Co., Ltd.	strategic	6.5M	¥1,865	-4.0%	¥12.1B ($78.2M)
2025-12-01	SELL	negotiated	株式会社エヌケーホールディングス	other	3.7M	¥1,865	+4.0%	¥6.6B ($42.4M)
2025-12-01	BUY	negotiated	是枝伸彦	activist	1.8M	¥1,865	-4.0%	¥3.1B ($20.2M)
2025-03-24	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.8M	¥1,891	-5.3%	¥3.5B ($22.5M)
2023-12-07	SELL	subscription	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	546.3K	¥1,709	-4.7%	¥190M ($1.2M)
2023-12-07	BUY	subscription	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	29.5K	¥1,709	+4.7%	¥18M ($115K)
2023-12-07	BUY	subscription	野村證券株式会社 Nomura Securities Co.,Ltd.	other	266.9K	¥1,709	+4.7%	¥404M ($2.6M)
2023-01-26	BUY	negotiated	株式会社エヌケーホールディングス NK Holdings Co., Ltd.	other	10.2M	¥1,569	+14.1%	¥16.0B ($103.0M)
2023-01-26	BUY	negotiated	是枝伸彦 Nobuhiko Koreeda	activist	1.7M	¥1,569	+14.1%	¥2.7B ($17.7M)
2022-06-06	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	33.1K	¥1,207	-48.3%	¥34M ($217K)
2022-06-06	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	1.2M	¥1,207	+48.3%	¥1.4B ($9.2M)
2022-02-04	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	64.3K	¥1,278	-40.1%	¥285M ($1.8M)
2022-02-04	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	1.9M	¥1,278	+40.1%	¥2.4B ($15.6M)
2021-09-21	BUY	negotiated	株式会社エヌケーホールディングス NK Holdings Co., Ltd.	other	10.2M	¥1,718	+4.2%	¥48M ($309K)
2021-09-21	BUY	negotiated	是枝伸彦 Nobuhiko Koreeda	activist	1.7M	¥1,718	+4.2%	¥3.0B ($19.3M)
2021-03-22	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	658.4K	¥1,893.542	-5.5%	¥442M ($2.8M)
2021-03-22	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	18.8K	¥1,893.542	-5.5%	¥2.9B ($19.0M)
2021-03-22	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.0M	¥1,893.542	-5.5%	¥310M ($2.0M)

Frequently asked questions

Who has been buying Miroku Jyoho Service Co., Ltd. stock?: 9 distinct investors have filed 11 disclosed large-shareholding filings in Miroku Jyoho Service Co., Ltd. (9928), most recently on 2025-12-01. 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 Miroku Jyoho Service Co., Ltd. have?: Miroku Jyoho Service Co., Ltd. has 11 buy-side and 4 sell-side disclosures on record, covering ¥23.0B ($148.1M) in total reported value, spanning 2021-03-22 to 2025-12-01.
Where does StockDrifts get Miroku Jyoho Service 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 Miroku Jyoho Service Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.