Who has been buying Daishin Chemical Co.,Ltd. stock?

3 distinct investors have filed 5 disclosed large-shareholding filings in Daishin Chemical Co.,Ltd. (4629), 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 Daishin Chemical Co.,Ltd. have?

Daishin Chemical Co.,Ltd. has 5 buy-side and 5 sell-side disclosures on record, covering ¥98M ($634K) in total reported value, spanning 2023-03-23 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.

Daishin Chemical Co.,Ltd. 4629

Company

大伸化学株式会社Daishin Chemical Co.,Ltd.

Investors

Buys

Total Value

¥98M ($634K)

Avg Return

+43.29%

Last Filing

2025-09-26

Daishin Chemical Co.,Ltd. (4629) has 5 disclosed large-shareholding filings and 5 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥98M ($634K) in reported transaction value. The earliest filing StockDrifts holds for Daishin Chemical Co.,Ltd. is dated 2023-03-23; the most recent is 2025-09-26. Across these filings the average return since disclosure is +43.29%, 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	343.5K	¥1,645	+53.8%	¥36M ($229K)
2025-09-26	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	12.2K	¥1,645	+53.8%	¥20M ($132K)
2024-10-21	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	322.0K	¥1,368	+84.9%	¥63M ($405K)
2024-04-23	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	275.8K	¥1,489	+69.9%	¥69M ($446K)
2023-10-12	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	229.8K	¥1,240	+104.0%	¥285M ($1.8M)
2023-09-07	SELL	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	169.1K	¥1,198	-111.2%	¥89M ($571K)
2023-08-07	SELL	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	243.0K	¥1,202	-110.5%	¥59M ($377K)
2023-07-07	SELL	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	291.8K	¥1,215	-108.2%	¥56M ($364K)
2023-06-07	SELL	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	338.2K	¥1,167	-116.8%	¥57M ($366K)
2023-03-23	SELL	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	386.6K	¥1,196	-111.5%	¥69M ($443K)

Frequently asked questions

Who has been buying Daishin Chemical Co.,Ltd. stock?: 3 distinct investors have filed 5 disclosed large-shareholding filings in Daishin Chemical Co.,Ltd. (4629), 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 Daishin Chemical Co.,Ltd. have?: Daishin Chemical Co.,Ltd. has 5 buy-side and 5 sell-side disclosures on record, covering ¥98M ($634K) in total reported value, spanning 2023-03-23 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.