Who has been buying Daiki Aluminium Industry Co., Ltd. stock?

16 distinct investors have filed 6 disclosed large-shareholding filings in Daiki Aluminium Industry Co., Ltd. (5702), most recently on 2025-04-07. 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 Daiki Aluminium Industry Co., Ltd. have?

Daiki Aluminium Industry Co., Ltd. has 6 buy-side and 11 sell-side disclosures on record, covering ¥1.2B ($7.7M) in total reported value, spanning 2021-04-07 to 2025-04-07.

Where does StockDrifts get Daiki Aluminium Industry Co., Ltd. insider data?

From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.

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.

Daiki Aluminium Industry Co., Ltd. 5702

Company

株式会社大紀アルミニウム工業所Daiki Aluminium Industry Co., Ltd.

Investors

Buys

Total Value

¥1.2B ($7.7M)

Avg Return

+22.21%

Last Filing

2025-04-07

Daiki Aluminium Industry Co., Ltd. (5702) has 6 disclosed large-shareholding filings and 11 disclosed disposals on record, filed by 16 distinct investors. Together those filings cover ¥1.2B ($7.7M) in reported transaction value. The earliest filing StockDrifts holds for Daiki Aluminium Industry Co., Ltd. is dated 2021-04-07; the most recent is 2025-04-07. All of it is parsed from EDINET large-shareholding (5%+) reports, the official disclosure system operated by the Financial Services Agency (Japan). Across these filings the average return since disclosure is +22.21%, 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
2025-04-07	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	702.6K	¥822	+79.3%	¥578M ($3.7M)
2025-04-07	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.2M	¥822	-79.3%	¥362M ($2.3M)
2024-09-06	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.6M	¥1,076	-37.0%	¥469M ($3.0M)
2024-09-06	SELL	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	702.6K	¥1,076	-37.0%	¥324M ($2.1M)
2024-09-06	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	530.9K	¥1,076	+37.0%	¥5M ($30K)
2024-09-06	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	1.0M	¥1,076	+37.0%	¥1.1B ($7.0M)
2024-09-06	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	404.5K	¥1,076	-37.0%	¥643M ($4.1M)
2023-08-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	529.6K	¥1,436	-2.6%	¥639M ($4.1M)
2023-08-07	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	1.0M	¥1,436	+2.6%	¥1.4B ($9.3M)
2023-08-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	1.0M	¥1,436	+2.6%	¥1.4B ($9.3M)
2023-03-20	SELL	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	64.2K	¥1,402	-5.1%	¥86M ($552K)
2023-03-20	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	404.0K	¥1,402	-5.1%	¥373M ($2.4M)
2023-03-20	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	110.8K	¥1,402	+5.1%	¥18M ($118K)
2023-03-20	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.2M	¥1,402	-5.1%	¥569M ($3.7M)
2021-12-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	1.0M	¥1,487	-0.9%	¥1.5B ($9.6M)
2021-12-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	972.9K	¥1,487	-0.9%	¥143M ($921K)
2021-12-07	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	1.0M	¥1,487	-0.9%	¥1.5B ($9.6M)
2021-05-18	BUY	negotiated	山本隆美 Takami Yamamoto	other	175.7K	¥1,128	+30.7%	¥198M ($1.3M)
2021-05-18	BUY	negotiated	山本隆章 Takaaki Yamamoto	activist	2.3M	¥1,128	+30.7%	¥901M ($5.8M)
2021-05-18	BUY	negotiated	安宅千浩 Chihiro Ataka	other	944.3K	¥1,128	+30.7%	¥1.1B ($6.9M)
2021-05-18	SELL	negotiated	山本暉郎 Akiro Yamamoto	activist	0	¥1,128	-30.7%	¥871M ($5.6M)
2021-05-18	BUY	negotiated	山本隆美 Takami Yamamoto	other	175.7K	¥1,128	+30.7%	¥198M ($1.3M)
2021-05-18	BUY	negotiated	山本隆章 Takaaki Yamamoto	activist	1.5M	¥1,128	+30.7%	¥128M ($826K)
2021-05-18	BUY	negotiated	安宅千浩 Chihiro Ataka	other	944.3K	¥1,128	+30.7%	¥1.1B ($6.9M)
2021-05-18	BUY	negotiated	山本暉郎 Akiro Yamamoto	activist	771.2K	¥1,128	+30.7%	¥5M ($32K)
2021-05-18	BUY	negotiated	山本隆美 Takami Yamamoto	other	175.7K	¥1,128	+30.7%	¥198M ($1.3M)
2021-05-18	BUY	negotiated	有限会社山本エステート YAMAMOTO ESTATE CO.,LTD.	activist	3.5M	¥1,128	+30.7%	¥3.9B ($25.3M)
2021-05-18	BUY	negotiated	有限会社山本エステート YAMAMOTO ESTATE CO.,LTD.	activist	3.5M	¥1,128	+30.7%	¥3.9B ($25.3M)
2021-05-18	BUY	negotiated	有限会社山本エステート YAMAMOTO ESTATE CO.,LTD.	activist	3.5M	¥1,128	+30.7%	¥3.9B ($25.3M)
2021-05-18	BUY	negotiated	山本隆章 Takaaki Yamamoto	activist	1.4M	¥1,128	+30.7%	¥1.6B ($10.1M)
2021-05-18	BUY	negotiated	安宅千浩 Chihiro Ataka	activist	944.3K	¥1,128	+30.7%	¥1.1B ($6.9M)
2021-05-18	BUY	negotiated	山本暉郎 Akiro Yamamoto	activist	769.2K	¥1,128	+30.7%	¥868M ($5.6M)
2021-05-18	BUY	negotiated	山本喜代 Kiyo Yamamoto	other	0	¥1,128	+30.7%	¥1.4B ($9.3M)
2021-04-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	876.2K	¥1,041	-41.6%	¥400M ($2.6M)
2021-04-07	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	1.0M	¥1,041	+41.6%	¥1.0B ($6.7M)
2021-04-07	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	35.5K	¥1,041	-41.6%	¥23M ($147K)
2021-04-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	1.0M	¥1,041	+41.6%	¥1.0B ($6.7M)

Frequently asked questions

Who has been buying Daiki Aluminium Industry Co., Ltd. stock?: 16 distinct investors have filed 6 disclosed large-shareholding filings in Daiki Aluminium Industry Co., Ltd. (5702), most recently on 2025-04-07. 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 Daiki Aluminium Industry Co., Ltd. have?: Daiki Aluminium Industry Co., Ltd. has 6 buy-side and 11 sell-side disclosures on record, covering ¥1.2B ($7.7M) in total reported value, spanning 2021-04-07 to 2025-04-07.
Where does StockDrifts get Daiki Aluminium Industry Co., Ltd. insider data?: From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.
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.

Source filings

Every trade listed above is disclosed in EDINET large-shareholding (5%+) reports, filed with the Financial Services Agency (Japan). View the original EDINET filings for Daiki Aluminium Industry Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.