Who has been buying Will Group, Inc. stock?

6 distinct investors have filed 14 disclosed large-shareholding filings in Will Group, Inc. (6089), most recently on 2026-04-22. 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 Will Group, Inc. have?

Will Group, Inc. has 14 buy-side and 8 sell-side disclosures on record, covering ¥2.1B ($13.8M) in total reported value, spanning 2021-03-22 to 2026-04-22.

Where does StockDrifts get Will Group, Inc. 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.

Will Group, Inc. 6089

Company

株式会社ウィルグループWill Group, Inc.

Investors

Buys

Total Value

¥2.1B ($13.8M)

Avg Return

+4.60%

Last Filing

2026-04-22

Will Group, Inc. (6089) has 14 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥2.1B ($13.8M) in reported transaction value. The earliest filing StockDrifts holds for Will Group, Inc. is dated 2021-03-22; the most recent is 2026-04-22. 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 +4.60%, 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
2026-07-10	SELL	unknown	大原茂 shigeru ohara	strategic	1.4M	¥1,068	-0.3%	¥257M ($1.7M)
2026-07-10	BUY	unknown	大原茂 shigeru ohara	strategic	1.4M	¥1,068	+0.3%	¥257M ($1.7M)
2026-06-17	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	385.4K	¥1,040	+5.2%	¥401M ($2.6M)
2026-06-17	BUY	Market Buy	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	118.5K	¥1,040	+5.2%	¥5M ($30K)
2026-06-17	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	112.2K	¥1,040	+5.2%	¥117M ($753K)
2026-06-17	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	369.7K	¥1,040	+5.2%	¥52M ($334K)
2026-06-17	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	1.0M	¥1,040	+5.2%	¥87M ($561K)
2026-06-17	SELL	unknown	エフアイエーエムエルエルシー FIAM LLC	other	369.7K	¥1,040	-5.2%	¥2M ($15K)
2026-06-17	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	1.2M	¥1,040	+5.2%	¥249M ($1.6M)
2026-06-17	BUY	Market Buy	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	125.6K	¥1,040	+5.2%	¥7M ($46K)
2026-06-17	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	441.7K	¥1,040	+5.2%	¥75M ($486K)
2026-06-17	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	1.4M	¥1,040	+5.2%	¥177M ($1.1M)
2026-06-17	BUY	Market Buy	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	146.1K	¥1,040	+5.2%	¥24M ($152K)
2026-06-17	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	441.7K	¥1,040	+5.2%	¥459M ($3.0M)
2026-06-17	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	1.6M	¥1,040	+5.2%	¥236M ($1.5M)
2026-06-17	BUY	Market Buy	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	187.6K	¥1,040	+5.2%	¥38M ($248K)
2026-06-17	SELL	unknown	エフアイエーエムエルエルシー FIAM LLC	other	385.4K	¥1,040	-5.2%	¥67M ($434K)
2026-06-17	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	1.7M	¥1,040	+5.2%	¥53M ($341K)
2026-06-17	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	187.6K	¥1,040	+5.2%	¥195M ($1.3M)
2026-06-17	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	1.7M	¥1,040	+5.2%	¥1.8B ($11.6M)
2026-06-16	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	319.7K	¥1,030	+4.1%	¥329M ($2.1M)
2026-06-16	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	920.1K	¥1,030	+4.1%	¥948M ($6.1M)
2026-04-22	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	2.3M	¥1,145	-10.7%	¥2.6B ($17.0M)
2026-04-07	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	2.3M	¥1,173	-4.4%	¥27M ($175K)
2025-10-03	SELL	unknown	池田良介 RYOSUKE IKEDA	other	4.0M	¥1,002	-16.8%	¥283M ($1.8M)
2025-02-21	SELL	unknown	大原茂 shigeru ohara	strategic	1.7M	¥993	-17.8%	¥80M ($517K)
2023-11-02	BUY	Market Buy	大原茂 Shigeru Ohara	strategic	1.7M	¥1,087	+7.6%	¥10M ($64K)
2023-03-01	BUY	Market Buy	株式会社池田企画事務所 Ikeda Planning Office Co.,Ltd.	strategic	2.0M	¥1,133	+3.3%	¥143M ($922K)
2022-11-30	SELL	unknown	大原茂 Shigeru Ohara	other	1.7M	¥1,360	+14.0%	¥162M ($1.0M)
2022-10-07	BUY	Market Buy	株式会社池田企画事務所 Ikeda Planning Office Co.,Ltd.	strategic	1.9M	¥1,429	-18.1%	¥337M ($2.2M)
2022-06-24	SELL	unknown	池田良介 RYOSUKE IKEDA	other	4.2M	¥1,089	-7.4%	¥45M ($289K)
2022-06-24	BUY	unknown	池田良介 RYOSUKE IKEDA	other	4.2M	¥1,089	+7.4%	¥4.6B ($29.8M)
2022-03-25	SELL	unknown	大原茂 Shigeru Ohara	other	1.8M	¥1,233	+5.1%	¥31M ($198K)
2022-03-25	BUY	unknown	大原茂 Shigeru Ohara	other	1.8M	¥1,233	-5.1%	¥31M ($198K)
2022-03-23	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	2.2M	¥1,247	-6.2%	¥308M ($2.0M)
2022-01-11	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	2.0M	¥1,237	-5.4%	¥311M ($2.0M)
2021-11-04	SELL	unknown	池田良介 RYOSUKE IKEDA	other	4.2M	¥1,371	+14.7%	¥28M ($180K)
2021-09-24	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.7M	¥1,316	-11.1%	¥318M ($2.1M)
2021-08-27	SELL	unknown	大原茂 Shigeru Ohara	other	1.8M	¥1,265	+7.5%	¥34M ($221K)
2021-08-27	BUY	unknown	大原茂 Shigeru Ohara	other	1.8M	¥1,265	-7.5%	¥34M ($221K)
2021-08-20	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.5M	¥1,170	+0.0%	¥288M ($1.9M)
2021-07-07	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.2M	¥1,011	+15.7%	¥1.3B ($8.1M)
2021-05-12	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	826.6K	¥1,001	+16.9%	¥818M ($5.3M)
2021-05-12	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	12.8K	¥1,001	-16.9%	¥332M ($2.1M)
2021-04-07	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	840.1K	¥1,115	+4.9%	¥937M ($6.0M)
2021-04-07	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	344.6K	¥1,115	+4.9%	¥384M ($2.5M)
2021-03-22	BUY	Market Buy	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	840.0K	¥913.016	+28.1%	¥757M ($4.9M)
2021-03-22	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	220.4K	¥913.016	+28.1%	¥150M ($968K)

Frequently asked questions

Who has been buying Will Group, Inc. stock?: 6 distinct investors have filed 14 disclosed large-shareholding filings in Will Group, Inc. (6089), most recently on 2026-04-22. 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 Will Group, Inc. have?: Will Group, Inc. has 14 buy-side and 8 sell-side disclosures on record, covering ¥2.1B ($13.8M) in total reported value, spanning 2021-03-22 to 2026-04-22.
Where does StockDrifts get Will Group, Inc. 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 Will Group, Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.