Who has been buying CONVUM Ltd. stock?

5 distinct investors have filed 4 disclosed large-shareholding filings in CONVUM Ltd. (6265), most recently on 2025-09-29. 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 CONVUM Ltd. have?

CONVUM Ltd. has 4 buy-side and 3 sell-side disclosures on record, covering ¥39M ($250K) in total reported value, spanning 2024-08-02 to 2025-09-29.

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.

CONVUM Ltd. 6265

Company

コンバム株式会社CONVUM Ltd.

Investors

Buys

Total Value

¥39M ($250K)

Avg Return

+31.71%

Last Filing

2025-09-29

CONVUM Ltd. (6265) has 4 disclosed large-shareholding filings and 3 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥39M ($250K) in reported transaction value. The earliest filing StockDrifts holds for CONVUM Ltd. is dated 2024-08-02; the most recent is 2025-09-29. Across these filings the average return since disclosure is +31.71%, 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
2025-09-29	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	118.8K	¥2,420	-	-
2025-09-29	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	19.1K	¥2,420	+27.7%	¥6M ($39K)
2025-09-05	SELL	Market Buy	伊勢興産株式会社 ISEKOSAN Co.,Ltd.	passive	246.9K	¥2,372	-30.3%	¥85M ($548K)
2025-09-05	BUY	Market Buy	伊勢すが子 Sugako Ise	passive	126.0K	¥2,372	-	-
2025-09-05	SELL	Market Buy	伊勢養治 Yoji Ise	unknown	0	¥2,372	-30.3%	¥39M ($254K)
2025-09-05	BUY	Market Buy	伊勢すが子 Sugako Ise	passive	126.0K	¥2,372	-	-
2025-09-05	BUY	Market Buy	伊勢興産株式会社 ISEKOSAN Co.,Ltd.	passive	282.8K	¥2,372	-	-
2025-05-20	SELL	Market Buy	伊勢興産株式会社 ISEKOSAN Co.,Ltd.	passive	246.9K	¥2,050	-50.7%	¥2.0B ($12.6M)
2025-05-20	BUY	Market Buy	伊勢興産株式会社 ISEKOSAN Co.,Ltd.	passive	246.9K	¥2,050	-	¥2.0B ($12.6M)
2025-05-01	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	118.8K	¥1,953	-	-
2025-05-01	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	16.6K	¥1,953	-	¥32M ($209K)
2025-02-26	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	118.8K	¥1,916	+61.3%	¥33M ($211K)
2024-08-27	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	101.8K	¥2,000	+54.5%	¥33M ($214K)
2024-08-02	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	85.1K	¥1,954	+58.1%	¥166M ($1.1M)

Frequently asked questions

Who has been buying CONVUM Ltd. stock?: 5 distinct investors have filed 4 disclosed large-shareholding filings in CONVUM Ltd. (6265), most recently on 2025-09-29. 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 CONVUM Ltd. have?: CONVUM Ltd. has 4 buy-side and 3 sell-side disclosures on record, covering ¥39M ($250K) in total reported value, spanning 2024-08-02 to 2025-09-29.
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.