Who has been buying Sanyo Industries, Ltd. stock?

8 distinct investors have filed 2 disclosed large-shareholding filings in Sanyo Industries, Ltd. (5958), most recently on 2025-10-28. 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 Sanyo Industries, Ltd. have?

Sanyo Industries, Ltd. has 2 buy-side and 11 sell-side disclosures on record, covering ¥12.3B ($79.4M) in total reported value, spanning 2021-12-07 to 2025-10-28.

Where does StockDrifts get Sanyo Industries, 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.

Sanyo Industries, Ltd. 5958

Company

三洋工業株式会社Sanyo Industries, Ltd.

Investors

Buys

Total Value

¥12.3B ($79.4M)

Avg Return

+53.79%

Last Filing

2025-10-28

Sanyo Industries, Ltd. (5958) has 2 disclosed large-shareholding filings and 11 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥12.3B ($79.4M) in reported transaction value. The earliest filing StockDrifts holds for Sanyo Industries, Ltd. is dated 2021-12-07; the most recent is 2025-10-28. 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 +53.79%, 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
2025-10-28	SELL	unknown	株式会社TNNアドバイザーズ TNN Advisors Co., Ltd	unknown	0	¥4,505	-3.7%	¥793M ($5.1M)
2024-12-06	BUY	unknown	株式会社TNNアドバイザーズ TNN Advisors Co., Ltd	activist	176.1K	¥2,945	+58.6%	¥519M ($3.3M)
2024-12-06	BUY	unknown	株式会社TNNアドバイザーズ TNN Advisors Co., Ltd	activist	176.1K	¥2,945	+58.6%	¥519M ($3.3M)
2024-08-19	BUY	negotiated	auカブコム証券株式会社 Mitsubishi UFJ Financial Group Inc.	other	7.1K	¥2,721	+71.6%	¥19M ($125K)
2024-08-19	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	9.6K	¥2,721	-71.6%	¥958K ($6K)
2024-08-19	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	82.9K	¥2,721	+71.6%	¥221M ($1.4M)
2024-08-19	SELL	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	3.1K	¥2,721	-71.6%	¥3M ($19K)
2024-07-29	SELL	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	4.2K	¥3,285	-42.2%	¥7M ($45K)
2024-07-29	BUY	negotiated	auカブコム証券株式会社 Mitsubishi UFJ Financial Group Inc.	other	6.9K	¥3,285	+42.2%	¥23M ($146K)
2024-07-29	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	9.9K	¥3,285	-42.2%	¥12M ($75K)
2024-07-29	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	166.9K	¥3,285	+42.2%	¥548M ($3.5M)
2024-03-18	SELL	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	6.4K	¥3,165	-47.5%	¥2M ($14K)
2024-03-18	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	13.4K	¥3,165	-47.5%	¥121M ($783K)
2024-03-18	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	166.9K	¥3,165	+47.5%	¥528M ($3.4M)
2024-03-05	BUY	unknown	株式会社TNNアドバイザーズ TNN Advisors Co., Ltd	activist	3.5M	¥3,435	+36.0%	¥12.1B ($78.0M)
2024-03-05	BUY	unknown	株式会社TNNアドバイザーズ TNN Advisors Co., Ltd	activist	176.1K	¥3,435	+36.0%	¥605M ($3.9M)
2023-02-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	11.7K	¥1,836	-154.4%	¥10M ($63K)
2023-02-07	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	92.0K	¥1,836	-154.4%	¥56M ($363K)
2023-02-07	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	44.7K	¥1,836	+154.4%	¥82M ($529K)
2022-10-21	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	16.9K	¥1,613	-189.5%	¥59M ($381K)
2022-10-21	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	44.7K	¥1,613	+189.5%	¥72M ($465K)
2022-10-21	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	122.6K	¥1,613	+189.5%	¥198M ($1.3M)
2021-12-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	53.4K	¥1,848	-152.7%	¥20M ($126K)
2021-12-07	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	44.7K	¥1,848	+152.7%	¥83M ($533K)
2021-12-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	122.6K	¥1,848	+152.7%	¥227M ($1.5M)

Frequently asked questions

Who has been buying Sanyo Industries, Ltd. stock?: 8 distinct investors have filed 2 disclosed large-shareholding filings in Sanyo Industries, Ltd. (5958), most recently on 2025-10-28. 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 Sanyo Industries, Ltd. have?: Sanyo Industries, Ltd. has 2 buy-side and 11 sell-side disclosures on record, covering ¥12.3B ($79.4M) in total reported value, spanning 2021-12-07 to 2025-10-28.
Where does StockDrifts get Sanyo Industries, 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 Sanyo Industries, Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.