Who has been buying Youji Corporation stock?

4 distinct investors have filed 5 disclosed large-shareholding filings in Youji Corporation (2152), most recently on 2025-09-26. 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 Youji Corporation have?

Youji Corporation has 5 buy-side and 1 sell-side disclosures on record, covering ¥364M ($2.4M) in total reported value, spanning 2021-11-29 to 2025-09-26.

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.

Youji Corporation 2152

Company

幼児活動研究会株式会社Youji Corporation

Investors

Buys

Total Value

¥364M ($2.4M)

Avg Return

+21.91%

Last Filing

2025-09-26

Youji Corporation (2152) has 5 disclosed large-shareholding filings and 1 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥364M ($2.4M) in reported transaction value. The earliest filing StockDrifts holds for Youji Corporation is dated 2021-11-29; the most recent is 2025-09-26. Across these filings the average return since disclosure is +21.91%, 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
2025-09-26	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	808.8K	¥1,409	-	-
2025-09-26	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	1.1M	¥1,409	-	-
2025-09-26	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	324.9K	¥1,409	+10.2%	¥25M ($161K)
2025-09-26	BUY	Market Buy	株式会社エスアイエル SIL Co., Ltd.	passive	263.7K	¥1,409	-	-
2025-07-11	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	808.8K	¥1,345	-	-
2025-07-11	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	1.1M	¥1,345	-	-
2025-07-11	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	308.1K	¥1,345	+15.4%	¥158M ($1.0M)
2025-07-11	BUY	Market Buy	株式会社エスアイエル SIL Co., Ltd.	passive	263.7K	¥1,345	-	-
2024-04-10	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	1.1M	¥1,280	-	-
2024-04-10	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	808.8K	¥1,280	-	-
2024-04-10	BUY	Market Buy	株式会社エスアイエル SIL Co., Ltd.	passive	263.7K	¥1,280	-	-
2024-04-10	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	189.5K	¥1,280	+21.3%	¥152M ($983K)
2022-01-18	BUY	Market Buy	株式会社エスアイエル SIL Co., Ltd.	passive	263.7K	¥1,060	-	¥280M ($1.8M)
2022-01-18	SELL	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	808.8K	¥1,060	-46.4%	¥280M ($1.8M)
2022-01-18	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	1.1M	¥1,060	-	-
2022-01-18	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	71.2K	¥1,060	+46.4%	¥26M ($169K)
2021-11-29	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	1.1M	¥1,066	+45.6%	¥3M ($16K)
2021-11-29	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	1.1M	¥1,066	-	-
2021-11-29	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	46.4K	¥1,066	-	¥49M ($319K)

Frequently asked questions

Who has been buying Youji Corporation stock?: 4 distinct investors have filed 5 disclosed large-shareholding filings in Youji Corporation (2152), most recently on 2025-09-26. 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 Youji Corporation have?: Youji Corporation has 5 buy-side and 1 sell-side disclosures on record, covering ¥364M ($2.4M) in total reported value, spanning 2021-11-29 to 2025-09-26.
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.