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Sansha Electric Manufacturing Co.,Ltd. 6882

Company
株式会社三社電機製作所Sansha Electric Manufacturing Co.,Ltd.
Investors
4
Buys
1
Total Value
¥1.3B ($8.3M)
Avg Return
+10.21%
Last Filing
2026-05-12

Sansha Electric Manufacturing Co.,Ltd. (6882) has 1 disclosed large-shareholding filings and 5 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥1.3B ($8.3M) in reported transaction value. The earliest filing StockDrifts holds for Sansha Electric Manufacturing Co.,Ltd. is dated 2022-01-31; the most recent is 2026-05-12. 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 +10.21%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-05-12BUYunknown
合同会社みやしろ
activist758.0K¥1,323+7.8%¥1.0B ($6.5M)
2026-05-12BUYunknown
四方 幸
unknown45.9K¥1,323+7.8%¥61M ($392K)
2024-12-06SELLunknown
パナソニック ホールディングス株式会社
Panasonic Holdings Corporation
strategic745.4K¥858-23.3%¥132M ($852K)
2024-01-31SELLunknown
パナソニック ホールディングス株式会社
Panasonic Holdings Corporation
strategic899.3K¥1,722+38.6%¥273M ($1.8M)
2024-01-16SELLunknown
パナソニック ホールディングス株式会社
Panasonic Holdings Corporation
strategic1.1M¥1,295+18.3%¥201M ($1.3M)
2022-11-30BUYunknown
三菱重工業株式会社
Mitsubishi Heavy Industries, Ltd.
strategic1.3M¥960+10.2%¥1.3B ($8.3M)
2022-11-14SELLunknown
パナソニック ホールディングス株式会社
Panasonic Holdings Corporation
strategic1.2M¥900-17.6%¥856M ($5.5M)
2022-04-04BUYunknown
パナソニック ホールディングス株式会社
Panasonic Holdings Corporation
strategic2.2M¥786+34.6%¥1.7B ($11.0M)
2022-02-15BUYunknown
合同会社 みやしろ
Miyashiro LLC
activist758.0K¥781+35.5%¥592M ($3.8M)
2022-01-31SELLunknown
パナソニック株式会社
Panasonic Corporation
strategic2.2M¥828-27.8%¥1.5B ($9.7M)

Frequently asked questions

Who has been buying Sansha Electric Manufacturing Co.,Ltd. stock?
4 distinct investors have filed 1 disclosed large-shareholding filings in Sansha Electric Manufacturing Co.,Ltd. (6882), most recently on 2026-05-12. 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 Sansha Electric Manufacturing Co.,Ltd. have?
Sansha Electric Manufacturing Co.,Ltd. has 1 buy-side and 5 sell-side disclosures on record, covering ¥1.3B ($8.3M) in total reported value, spanning 2022-01-31 to 2026-05-12.
Where does StockDrifts get Sansha Electric Manufacturing 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 Sansha Electric Manufacturing Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.