Who has been buying Daido Signal Co., Ltd. stock?

6 distinct investors have filed 5 disclosed large-shareholding filings in Daido Signal Co., Ltd. (6743), most recently on 2026-04-24. 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 Daido Signal Co., Ltd. have?

Daido Signal Co., Ltd. has 5 buy-side and 3 sell-side disclosures on record, covering ¥735M ($4.7M) in total reported value, spanning 2023-06-07 to 2026-04-24.

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.

Daido Signal Co., Ltd. 6743

Company

大同信号株式会社Daido Signal Co., Ltd.

Investors

Buys

Total Value

¥735M ($4.7M)

Avg Return

+49.36%

Last Filing

2026-04-24

Daido Signal Co., Ltd. (6743) has 5 disclosed large-shareholding filings and 3 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥735M ($4.7M) in reported transaction value. The earliest filing StockDrifts holds for Daido Signal Co., Ltd. is dated 2023-06-07; the most recent is 2026-04-24. Across these filings the average return since disclosure is +49.36%, 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
2026-08-21	SELL	unknown	株式会社みずほ銀行	strategic	342.1K	¥1,080	+2.3%	¥368M ($2.4M)
2026-08-21	SELL	unknown	みずほ信託銀行株式会社	other	132.3K	¥1,080	+2.3%	¥160M ($1.0M)
2026-08-14	SELL	unknown	日本電設工業株式会社 NIPPON DENSETSU KOGYO CO., LTD.	strategic	1.9M	¥1,057	+0.2%	¥528M ($3.4M)
2026-04-24	BUY	Market Buy	有限会社光パワー	passive	598.3K	¥795	+32.7%	¥116M ($749K)
2026-04-24	SELL	Market Buy	重田康光	passive	0	¥795	-32.7%	¥428M ($2.8M)
2024-06-21	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	683.1K	¥530	+99.1%	¥362M ($2.3M)
2024-06-21	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	279.8K	¥530	+99.1%	¥148M ($957K)
2024-06-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	683.1K	¥484	+118.0%	¥326M ($2.1M)
2024-06-07	SELL	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	unknown	0	¥484	-118.0%	¥49M ($315K)
2024-06-06	BUY	Market Buy	日本電設工業株式会社 NIPPON DENSETSU KOGYO CO., LTD.	strategic	2.4M	¥484	+118.0%	¥145M ($934K)
2024-06-06	BUY	unknown	日本電設工業株式会社 NIPPON DENSETSU KOGYO CO., LTD.	strategic	2.4M	¥484	-	¥145M ($934K)
2023-06-07	SELL	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	885.5K	¥433	-143.7%	¥93M ($599K)

Frequently asked questions

Who has been buying Daido Signal Co., Ltd. stock?: 6 distinct investors have filed 5 disclosed large-shareholding filings in Daido Signal Co., Ltd. (6743), most recently on 2026-04-24. 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 Daido Signal Co., Ltd. have?: Daido Signal Co., Ltd. has 5 buy-side and 3 sell-side disclosures on record, covering ¥735M ($4.7M) in total reported value, spanning 2023-06-07 to 2026-04-24.
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.