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Seiryo Electric Corporation 4341

Company
西菱電機株式会社Seiryo Electric Corporation
Investors
2
Buys
2
Total Value
¥161M ($1.0M)
Avg Return
-12.21%
Last Filing
2026-02-12

Seiryo Electric Corporation (4341) has 2 disclosed large-shareholding filings and 2 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥161M ($1.0M) in reported transaction value. The earliest filing StockDrifts holds for Seiryo Electric Corporation is dated 2022-04-27; the most recent is 2026-02-12. Across these filings the average return since disclosure is -12.21%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-02-12BUYMarket Buy
株式会社コンセプト代表取締役 榎本 定文
CONCEPT CO.,LTD.
passive140.1K¥825-¥29M ($188K)
2026-02-12SELLMarket Buy
株式会社コンセプト
CONCEPT CO.,LTD.
passive137.3K¥825-12.4%¥31M ($203K)
2025-05-20SELLnegotiated
三菱電機株式会社
Mitsubishi Electric Corporation
strategic702.0K¥778-19.1%¥86M ($552K)
2022-05-24BUYMarket Buy
株式会社コンセプト
CONCEPT CO.,LTD.
passive175.2K¥920-¥161M ($1.0M)
2022-05-24BUYMarket Buy
株式会社コンセプト
CONCEPT CO.,LTD.
passive175.2K¥920+0.8%¥161M ($1.0M)
2022-04-27BUYunknown
株式会社コンセプト
CONCEPT CO.,LTD.
unknown178.9K¥905-¥10M ($63K)
2022-04-27BUYunknown
株式会社コンセプト
CONCEPT CO.,LTD.
unknown178.9K¥905+2.4%¥10M ($63K)

Frequently asked questions

Who has been buying Seiryo Electric Corporation stock?
2 distinct investors have filed 2 disclosed large-shareholding filings in Seiryo Electric Corporation (4341), most recently on 2026-02-12. 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 Seiryo Electric Corporation have?
Seiryo Electric Corporation has 2 buy-side and 2 sell-side disclosures on record, covering ¥161M ($1.0M) in total reported value, spanning 2022-04-27 to 2026-02-12.
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.