Who has been buying Satori Electric Co., Ltd. stock?

12 distinct investors have filed 15 disclosed large-shareholding filings in Satori Electric Co., Ltd. (7420), most recently on 2025-12-22. 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 Satori Electric Co., Ltd. have?

Satori Electric Co., Ltd. has 15 buy-side and 6 sell-side disclosures on record, covering ¥2.4B ($15.5M) in total reported value, spanning 2023-04-17 to 2025-12-22.

Where does StockDrifts get Satori Electric 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.

Satori Electric Co., Ltd. 7420

Company

佐鳥電機株式会社Satori Electric Co., Ltd.

Investors

Buys

Total Value

¥2.4B ($15.5M)

Avg Return

+1.11%

Last Filing

2025-12-22

Satori Electric Co., Ltd. (7420) has 15 disclosed large-shareholding filings and 6 disclosed disposals on record, filed by 12 distinct investors. Together those filings cover ¥2.4B ($15.5M) in reported transaction value. The earliest filing StockDrifts holds for Satori Electric Co., Ltd. is dated 2023-04-17; the most recent is 2025-12-22. 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 +1.11%, 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
2025-12-22	BUY	Market Buy	株式会社三井住友銀行	other	587.5K	¥1,814	+4.0%	¥1.1B ($7.1M)
2025-12-22	BUY	Market Buy	三井住友DSアセットマネジメント株式会社	passive	205.4K	¥1,814	+4.0%	¥387M ($2.5M)
2024-07-29	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	51.3K	¥2,062	+8.5%	¥104M ($669K)
2024-07-29	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	72.7K	¥2,062	-8.5%	¥59M ($382K)
2024-07-29	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	262.2K	¥2,062	-8.5%	¥152M ($979K)
2024-07-29	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	583.3K	¥2,062	-8.5%	¥1.2B ($7.8M)
2024-06-07	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	587.5K	¥2,011	-6.2%	¥1.2B ($7.6M)
2024-06-07	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	49.2K	¥2,011	+6.2%	¥780M ($5.0M)
2024-06-07	SELL	unknown	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	90.2K	¥2,011	+6.2%	¥11M ($70K)
2024-05-09	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	587.5K	¥2,225	-15.2%	¥1.3B ($8.4M)
2024-05-09	BUY	unknown	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	94.8K	¥2,225	-15.2%	¥211M ($1.4M)
2024-05-09	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	435.7K	¥2,225	-15.2%	¥970M ($6.3M)
2023-10-16	BUY	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	102.7K	¥1,838	+2.6%	¥189M ($1.2M)
2023-10-16	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	45.4K	¥1,838	+2.6%	¥83M ($538K)
2023-10-16	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	188.8K	¥1,838	+2.6%	¥347M ($2.2M)
2023-10-16	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	583.3K	¥1,838	+2.6%	¥1.1B ($6.9M)
2023-09-08	BUY	unknown	佐鳥彩智子 Satoko Satori	other	63.0K	¥1,779	+6.0%	¥26M ($165K)
2023-09-08	BUY	unknown	株式会社STRマネージメント STR Management Co., Ltd.	strategic	715.4K	¥1,779	+6.0%	¥358M ($2.3M)
2023-09-08	SELL	unknown	佐鳥浩之 Hiroyuki Satori	activist	187.6K	¥1,779	-6.0%	¥367M ($2.4M)
2023-06-29	SELL	unknown	加賀電子株式会社 KAGA ELECTRONICS CO.,LTD.	unknown	0	¥1,709	-10.4%	¥3.4B ($22.0M)
2023-04-17	BUY	negotiated	エム・ユー投資顧問株式会社 M.U. Investment Advisors Co., Ltd.	passive	1.1K	¥1,515	+24.5%	¥245M ($1.6M)
2023-04-17	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	63.3K	¥1,515	+24.5%	¥16M ($105K)
2023-04-17	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	168.2K	¥1,515	-24.5%	¥269M ($1.7M)
2023-04-17	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	583.3K	¥1,515	+24.5%	¥884M ($5.7M)

Frequently asked questions

Who has been buying Satori Electric Co., Ltd. stock?: 12 distinct investors have filed 15 disclosed large-shareholding filings in Satori Electric Co., Ltd. (7420), most recently on 2025-12-22. 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 Satori Electric Co., Ltd. have?: Satori Electric Co., Ltd. has 15 buy-side and 6 sell-side disclosures on record, covering ¥2.4B ($15.5M) in total reported value, spanning 2023-04-17 to 2025-12-22.
Where does StockDrifts get Satori Electric 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 Satori Electric Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.