Who has been buying Daito Chemix Corporation stock?

3 distinct investors have filed 8 disclosed large-shareholding filings in Daito Chemix Corporation (4366), most recently on 2025-12-12. 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 Daito Chemix Corporation have?

Daito Chemix Corporation has 8 buy-side and 2 sell-side disclosures on record, covering ¥119M ($767K) in total reported value, spanning 2023-10-04 to 2025-12-12.

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.

Daito Chemix Corporation 4366

Company

ダイトーケミックス株式会社Daito Chemix Corporation

Investors

Buys

Total Value

¥119M ($767K)

Avg Return

+104.66%

Last Filing

2025-12-12

Daito Chemix Corporation (4366) has 8 disclosed large-shareholding filings and 2 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥119M ($767K) in reported transaction value. The earliest filing StockDrifts holds for Daito Chemix Corporation is dated 2023-10-04; the most recent is 2025-12-12. Across these filings the average return since disclosure is +104.66%, 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
2025-12-12	BUY	Market Buy	平松裕将 Hiramatsu Hiromasa	activist	4.2M	¥300	+62.3%	¥119M ($767K)
2025-12-12	BUY	unknown	平松裕将 Hiramatsu Hiromasa	activist	4.2M	¥300	-	¥119M ($767K)
2025-11-21	BUY	unknown	平松裕将 Hiramatsu Hiromasa	activist	3.8M	¥265	-	¥114M ($735K)
2025-11-21	BUY	Market Buy	平松裕将 Hiramatsu Hiromasa	activist	3.8M	¥265	+83.8%	¥114M ($735K)
2025-04-22	BUY	Market Buy	平松裕将 Hiramatsu Hiromasa	activist	1.1M	¥202	+141.1%	¥23M ($147K)
2025-03-21	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	50.0K	¥209.33	-132.7%	¥1.0B ($6.7M)
2025-03-21	SELL	negotiated	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	unknown	0	¥209.33	-132.7%	¥1M ($7K)
2025-01-08	BUY	Market Buy	平松裕将 Hiramatsu Hiromasa	activist	1.0M	¥213.33	+128.3%	¥24M ($154K)
2024-08-30	BUY	Market Buy	平松裕将 Hiramatsu Hiromasa	activist	911.8K	¥206.33	+136.0%	¥24M ($154K)
2024-04-09	BUY	Market Buy	平松裕将 Hiramatsu Hiromasa	activist	796.7K	¥230.67	+111.1%	¥28M ($178K)
2023-12-12	BUY	Market Buy	平松裕将 Hiramatsu Hiromasa	activist	676.3K	¥207	+135.3%	¥24M ($153K)
2023-10-04	BUY	unknown	平松裕将 Hiramatsu Hiromasa	activist	562.3K	¥185.67	+162.3%	¥104M ($674K)

Frequently asked questions

Who has been buying Daito Chemix Corporation stock?: 3 distinct investors have filed 8 disclosed large-shareholding filings in Daito Chemix Corporation (4366), most recently on 2025-12-12. 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 Daito Chemix Corporation have?: Daito Chemix Corporation has 8 buy-side and 2 sell-side disclosures on record, covering ¥119M ($767K) in total reported value, spanning 2023-10-04 to 2025-12-12.
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.