Who has been buying Daiko Tsusan Co.,Ltd. stock?

2 distinct investors have filed 10 disclosed large-shareholding filings in Daiko Tsusan Co.,Ltd. (7673), 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 Daiko Tsusan Co.,Ltd. have?

Daiko Tsusan Co.,Ltd. has 10 buy-side and 0 sell-side disclosures on record, covering ¥509M ($3.3M) in total reported value, spanning 2021-11-19 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.

Daiko Tsusan Co.,Ltd. 7673

Company

ダイコー通産株式会社Daiko Tsusan Co.,Ltd.

Investors

Buys

Total Value

¥509M ($3.3M)

Avg Return

+44.83%

Last Filing

2025-09-29

Daiko Tsusan Co.,Ltd. (7673) has 10 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥509M ($3.3M) in reported transaction value. The earliest filing StockDrifts holds for Daiko Tsusan Co.,Ltd. is dated 2021-11-19; the most recent is 2025-09-29. Across these filings the average return since disclosure is +44.83%, 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	403.8K	¥1,607	-	-
2025-09-29	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	329.8K	¥1,607	+5.8%	¥27M ($177K)
2025-08-26	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	403.8K	¥1,595	-	-
2025-08-26	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	312.4K	¥1,595	+6.6%	¥88M ($571K)
2025-07-18	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	403.8K	¥1,459	-	-
2025-07-18	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	257.1K	¥1,459	+16.5%	¥102M ($658K)
2025-02-06	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	403.8K	¥1,363	-	-
2025-02-06	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	187.1K	¥1,363	+24.7%	¥76M ($492K)
2024-07-30	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	403.8K	¥1,158	-	-
2024-07-30	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	131.4K	¥1,158	+46.8%	¥62M ($402K)
2024-01-24	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	77.5K	¥1,201	+41.5%	¥64M ($413K)
2024-01-24	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	403.8K	¥1,201	-	-
2023-07-13	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	403.8K	¥1,089	+56.1%	¥32M ($206K)
2023-07-13	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	23.8K	¥1,089	-	¥26M ($167K)
2022-11-08	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	374.1K	¥1,051	+61.8%	¥57M ($365K)
2022-03-16	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	320.6K	¥1,180	+44.1%	¥64M ($410K)
2021-11-19	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	266.7K	¥1,288	+32.0%	¥344M ($2.2M)

Frequently asked questions

Who has been buying Daiko Tsusan Co.,Ltd. stock?: 2 distinct investors have filed 10 disclosed large-shareholding filings in Daiko Tsusan Co.,Ltd. (7673), 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 Daiko Tsusan Co.,Ltd. have?: Daiko Tsusan Co.,Ltd. has 10 buy-side and 0 sell-side disclosures on record, covering ¥509M ($3.3M) in total reported value, spanning 2021-11-19 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.