Who has been buying Wellnet Corporation stock?

7 distinct investors have filed 5 disclosed large-shareholding filings in Wellnet Corporation (2428), most recently on 2025-11-10. 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 Wellnet Corporation have?

Wellnet Corporation has 5 buy-side and 8 sell-side disclosures on record, covering ¥1.1B ($7.0M) in total reported value, spanning 2021-06-07 to 2025-11-10.

Where does StockDrifts get Wellnet 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.

Wellnet Corporation 2428

Company

ウェルネット株式会社Wellnet Corporation

Investors

Buys

Total Value

¥1.1B ($7.0M)

Avg Return

+5.84%

Last Filing

2025-11-10

Wellnet Corporation (2428) has 5 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥1.1B ($7.0M) in reported transaction value. The earliest filing StockDrifts holds for Wellnet Corporation is dated 2021-06-07; the most recent is 2025-11-10. 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 +5.84%, 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
2025-11-10	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	918.6K	¥653	+1.7%	¥600M ($3.9M)
2025-11-10	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	925.5K	¥653	+1.7%	¥206M ($1.3M)
2025-09-22	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	918.6K	¥725	-8.4%	¥666M ($4.3M)
2025-09-22	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	609.3K	¥725	-8.4%	¥294M ($1.9M)
2025-08-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	2.0K	¥761	-12.8%	¥93M ($600K)
2025-08-07	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	918.6K	¥761	-12.8%	¥699M ($4.5M)
2025-08-07	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	202.8K	¥761	-12.8%	¥154M ($996K)
2023-02-20	SELL	Market Buy	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	78.2K	¥661	-0.5%	¥56M ($364K)
2023-02-20	SELL	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	758.6K	¥661	-0.5%	¥40M ($256K)
2023-02-20	SELL	Market Buy	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	900	¥661	-0.5%	¥22M ($141K)
2023-02-20	SELL	Market Buy	auカブコム証券株式会社 Mitsubishi UFJ Financial Group Inc.	other	17.6K	¥661	-0.5%	¥4M ($25K)
2022-07-19	SELL	Market Buy	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	32.6K	¥444	-49.5%	¥46M ($295K)
2022-07-19	BUY	Market Buy	auカブコム証券株式会社 Mitsubishi UFJ Financial Group Inc.	other	22.6K	¥444	+49.5%	¥10M ($65K)
2022-07-19	SELL	Market Buy	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	163.3K	¥444	-49.5%	¥7M ($44K)
2022-07-19	SELL	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	819.2K	¥444	-49.5%	¥52M ($333K)
2021-07-07	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	918.6K	¥534	+24.3%	¥491M ($3.2M)
2021-07-07	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	71.3K	¥534	+24.3%	¥38M ($246K)
2021-06-07	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	918.6K	¥515	+28.9%	¥473M ($3.1M)
2021-06-07	SELL	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	14.3K	¥515	-28.9%	¥104M ($670K)

Frequently asked questions

Who has been buying Wellnet Corporation stock?: 7 distinct investors have filed 5 disclosed large-shareholding filings in Wellnet Corporation (2428), most recently on 2025-11-10. 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 Wellnet Corporation have?: Wellnet Corporation has 5 buy-side and 8 sell-side disclosures on record, covering ¥1.1B ($7.0M) in total reported value, spanning 2021-06-07 to 2025-11-10.
Where does StockDrifts get Wellnet 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 Wellnet Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.