Who has been buying Yondoshi Holdings Inc. stock?

3 distinct investors have filed 6 disclosed large-shareholding filings in Yondoshi Holdings Inc. (8008), most recently on 2025-08-21. 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 Yondoshi Holdings Inc. have?

Yondoshi Holdings Inc. has 6 buy-side and 5 sell-side disclosures on record, covering ¥4.1B ($26.1M) in total reported value, spanning 2021-03-22 to 2025-08-21.

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.

Yondoshi Holdings Inc. 8008

Company

株式会社ヨンドシーホールディングスYondoshi Holdings Inc.

Investors

Buys

Total Value

¥4.1B ($26.1M)

Avg Return

+10.79%

Last Filing

2025-08-21

Yondoshi Holdings Inc. (8008) has 6 disclosed large-shareholding filings and 5 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥4.1B ($26.1M) in reported transaction value. The earliest filing StockDrifts holds for Yondoshi Holdings Inc. is dated 2021-03-22; the most recent is 2025-08-21. Across these filings the average return since disclosure is +10.79%, 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
2025-08-21	SELL	Market Buy	第一生命保険株式会社 The Dai-ichi Life Insurance Company, Limited	passive	946.2K	¥1,753	-19.0%	¥542M ($3.5M)
2023-05-22	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	781.1K	¥1,798	-	-
2023-05-22	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	89.8K	¥1,798	-16.0%	¥783M ($5.1M)
2023-02-22	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	525.7K	¥1,782	+17.1%	¥937M ($6.0M)
2023-02-22	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	781.1K	¥1,782	+17.1%	¥1.4B ($9.0M)
2022-03-23	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	200.5K	¥1,632	-27.8%	¥433M ($2.8M)
2022-03-23	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	781.1K	¥1,632	-	-
2022-01-11	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	465.6K	¥1,690	+23.4%	¥787M ($5.1M)
2022-01-11	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	781.1K	¥1,690	+23.4%	¥1.3B ($8.5M)
2021-11-22	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	200.0K	¥1,661	-25.6%	¥655M ($4.2M)
2021-11-22	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	781.1K	¥1,661	-	-
2021-11-08	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	594.5K	¥1,716	+21.6%	¥1.0B ($6.6M)
2021-11-08	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	781.1K	¥1,716	+21.6%	¥1.3B ($8.6M)
2021-03-22	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	117.4K	¥1,560.785	-33.6%	¥870M ($5.6M)
2021-03-22	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	781.1K	¥1,560.785	-	-

Frequently asked questions

Who has been buying Yondoshi Holdings Inc. stock?: 3 distinct investors have filed 6 disclosed large-shareholding filings in Yondoshi Holdings Inc. (8008), most recently on 2025-08-21. 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 Yondoshi Holdings Inc. have?: Yondoshi Holdings Inc. has 6 buy-side and 5 sell-side disclosures on record, covering ¥4.1B ($26.1M) in total reported value, spanning 2021-03-22 to 2025-08-21.
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.