Who has been buying WILLPLUS Holdings Corporation stock?

8 distinct investors have filed 4 disclosed large-shareholding filings in WILLPLUS Holdings Corporation (3538), most recently on 2025-08-22. 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 WILLPLUS Holdings Corporation have?

WILLPLUS Holdings Corporation has 4 buy-side and 32 sell-side disclosures on record, covering ¥689M ($4.4M) in total reported value, spanning 2021-07-08 to 2025-08-22.

Where does StockDrifts get WILLPLUS Holdings Corporation 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.

WILLPLUS Holdings Corporation 3538

Company

株式会社ウイルプラスホールディングスWILLPLUS Holdings Corporation

Investors

Buys

Total Value

¥689M ($4.4M)

Avg Return

-8.62%

Last Filing

2025-08-22

WILLPLUS Holdings Corporation (3538) has 4 disclosed large-shareholding filings and 32 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥689M ($4.4M) in reported transaction value. The earliest filing StockDrifts holds for WILLPLUS Holdings Corporation is dated 2021-07-08; the most recent is 2025-08-22. 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 -8.62%, 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
2026-05-29	BUY	unknown	株式会社ICS	strategic	750.0K	¥940	-4.0%	¥705M ($4.5M)
2026-05-29	BUY	unknown	株式会社ETH	strategic	750.0K	¥940	-4.0%	¥705M ($4.5M)
2026-05-29	BUY	unknown	株式会社MMZ	strategic	750.0K	¥940	-4.0%	¥705M ($4.5M)
2026-05-29	BUY	unknown	成瀬隆章	activist	2.2M	¥940	-4.0%	¥2.1B ($13.4M)
2026-05-26	BUY	Market Buy	株式会社ICS	strategic	750.0K	¥932	-2.7%	¥3M ($19K)
2026-05-26	BUY	Market Buy	株式会社ETH	strategic	750.0K	¥932	-2.7%	¥3M ($19K)
2026-05-26	BUY	Market Buy	株式会社MMZ	strategic	750.0K	¥932	-2.7%	¥3M ($19K)
2026-05-26	BUY	Market Buy	成瀬隆章	activist	2.2M	¥932	-2.7%	¥9M ($56K)
2026-05-26	BUY	Market Buy	株式会社ICS	strategic	750.0K	¥932	-2.7%	¥3M ($19K)
2026-05-26	BUY	Market Buy	株式会社ETH	strategic	750.0K	¥932	-2.7%	¥3M ($19K)
2026-05-26	BUY	Market Buy	株式会社MMZ	strategic	750.0K	¥932	-2.7%	¥3M ($19K)
2026-05-26	BUY	Market Buy	成瀬隆章	activist	2.2M	¥932	-2.7%	¥9M ($56K)
2025-08-22	SELL	Market Buy	明治安田アセットマネジメント株式会社 Meiji Yasuda Asset Management Company Ltd.	passive	403.8K	¥991	-2.6%	¥116M ($746K)
2025-06-02	SELL	unknown	株式会社ICS ICS Co., Ltd.	strategic	750.0K	¥1,018	+0.1%	¥3M ($20K)
2025-06-02	SELL	unknown	株式会社ETH ETH Co., Ltd.	strategic	750.0K	¥1,018	+0.1%	¥3M ($20K)
2025-06-02	SELL	unknown	株式会社MMZ MMZ Co., Ltd.	strategic	750.0K	¥1,018	+0.1%	¥3M ($20K)
2025-06-02	SELL	unknown	成瀬隆章 Takaaki Naruse	activist	2.2M	¥1,018	+0.1%	¥8M ($55K)
2024-11-25	SELL	unknown	株式会社ICS ICS Co., Ltd.	strategic	750.0K	¥998	-1.9%	¥3M ($20K)
2024-11-25	SELL	unknown	株式会社ETH ETH Co., Ltd.	strategic	750.0K	¥998	-1.9%	¥3M ($20K)
2024-11-25	SELL	unknown	株式会社MMZ MMZ Co., Ltd.	strategic	750.0K	¥998	-1.9%	¥3M ($20K)
2024-11-25	BUY	unknown	株式会社ICS ICS Co., Ltd.	strategic	750.0K	¥998	+1.9%	¥749M ($4.8M)
2024-11-25	BUY	unknown	株式会社ETH ETH Co., Ltd.	strategic	750.0K	¥998	+1.9%	¥749M ($4.8M)
2024-11-25	BUY	unknown	株式会社MMZ MMZ Co., Ltd.	strategic	750.0K	¥998	+1.9%	¥749M ($4.8M)
2024-11-25	BUY	unknown	成瀬隆章 Takaaki Naruse	activist	2.2M	¥998	+1.9%	¥2.2B ($14.2M)
2024-11-25	BUY	unknown	成瀬隆章 Takaaki Naruse	activist	2.2M	¥998	+1.9%	¥2.2B ($14.2M)
2024-09-24	BUY	Market Buy	明治安田アセットマネジメント株式会社 Meiji Yasuda Asset Management Company Ltd.	passive	518.4K	¥1,168	-12.9%	¥605M ($3.9M)
2024-08-29	SELL	unknown	株式会社ICS ICS Co., Ltd.	strategic	750.0K	¥1,214	+16.2%	¥4M ($24K)
2024-08-29	SELL	unknown	株式会社ETH ETH Co., Ltd.	strategic	750.0K	¥1,214	+16.2%	¥4M ($24K)
2024-08-29	SELL	unknown	株式会社MMZ MMZ Co., Ltd.	strategic	750.0K	¥1,214	+16.2%	¥4M ($24K)
2024-08-29	SELL	unknown	成瀬隆章 Takaaki Naruse	activist	2.2M	¥1,214	+16.2%	¥14M ($89K)
2024-08-22	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	1.0K	¥1,146	-11.3%	¥83M ($536K)
2024-08-22	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	433.6K	¥1,146	-11.3%	¥491M ($3.2M)
2024-06-07	SELL	Market Buy	明治安田アセットマネジメント株式会社 Meiji Yasuda Asset Management Company Ltd.	passive	387.7K	¥1,051	+3.2%	¥185M ($1.2M)
2024-01-05	BUY	Market Buy	明治安田アセットマネジメント株式会社 Meiji Yasuda Asset Management Company Ltd.	passive	562.0K	¥1,007	+1.0%	¥566M ($3.7M)
2023-11-17	SELL	unknown	株式会社ICS ICS Co., Ltd.	strategic	750.0K	¥1,149	+11.5%	¥24M ($153K)
2023-11-17	SELL	unknown	株式会社ETH ETH Co., Ltd.	strategic	750.0K	¥1,149	+11.5%	¥24M ($153K)
2023-11-17	SELL	unknown	株式会社MMZ MMZ Co., Ltd.	strategic	750.0K	¥1,149	+11.5%	¥24M ($153K)
2023-11-17	SELL	unknown	成瀬隆章 Takaaki Naruse	activist	2.2M	¥1,149	+11.5%	¥69M ($443K)
2023-07-03	SELL	unknown	成瀬隆章 Takaaki Naruse	activist	2.2M	¥1,235	+17.6%	¥22M ($144K)
2023-07-03	SELL	unknown	株式会社ICS ICS Co., Ltd.	strategic	750.0K	¥1,235	+17.6%	¥7M ($48K)
2023-07-03	SELL	unknown	株式会社ETH ETH Co., Ltd.	strategic	750.0K	¥1,235	+17.6%	¥7M ($48K)
2023-07-03	SELL	unknown	株式会社MMZ MMZ Co., Ltd.	strategic	750.0K	¥1,235	+17.6%	¥7M ($48K)
2022-12-22	BUY	unknown	株式会社ICS ICS Co., Ltd.	strategic	750.0K	¥1,038	-2.0%	¥779M ($5.0M)
2022-12-22	BUY	unknown	株式会社MMZ MMZ Co., Ltd.	strategic	750.0K	¥1,038	-2.0%	¥779M ($5.0M)
2022-12-22	BUY	unknown	株式会社ETH ETH Co., Ltd.	strategic	750.0K	¥1,038	-2.0%	¥779M ($5.0M)
2022-12-22	BUY	unknown	成瀬隆章 Takaaki Naruse	activist	2.2M	¥1,038	-2.0%	¥2.3B ($14.8M)
2022-11-29	SELL	unknown	成瀬隆章 Takaaki Naruse	activist	2.2M	¥1,145	+11.2%	¥875M ($5.6M)
2022-11-29	BUY	unknown	株式会社ICS ICS Co., Ltd.	strategic	750.0K	¥1,145	-11.2%	¥859M ($5.5M)
2022-11-29	SELL	unknown	株式会社ETH ETH Co., Ltd.	strategic	750.0K	¥1,145	+11.2%	¥5M ($29K)
2022-11-29	SELL	unknown	株式会社MMZ MMZ Co., Ltd.	strategic	750.0K	¥1,145	+11.2%	¥5M ($29K)

Showing the 50 most recent of 60 filings.

Frequently asked questions

Who has been buying WILLPLUS Holdings Corporation stock?: 8 distinct investors have filed 4 disclosed large-shareholding filings in WILLPLUS Holdings Corporation (3538), most recently on 2025-08-22. 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 WILLPLUS Holdings Corporation have?: WILLPLUS Holdings Corporation has 4 buy-side and 32 sell-side disclosures on record, covering ¥689M ($4.4M) in total reported value, spanning 2021-07-08 to 2025-08-22.
Where does StockDrifts get WILLPLUS Holdings Corporation 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 WILLPLUS Holdings Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.