StockDrifts LogoStockDrifts

Seibu Electric & Machinery Co., Ltd. 6144

Company
西部電機株式会社Seibu Electric & Machinery Co., Ltd.
Investors
1
Buys
2
Total Value
¥221M ($1.4M)
Avg Return
+112.62%
Last Filing
2023-12-20

Seibu Electric & Machinery Co., Ltd. (6144) has 2 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 1 distinct investors. Together those filings cover ¥221M ($1.4M) in reported transaction value. The earliest filing StockDrifts holds for Seibu Electric & Machinery Co., Ltd. is dated 2021-08-10; the most recent is 2023-12-20. 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 +112.62%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2023-12-20BUYMarket Buy
シンプレクス・アセット・マネジメント株式会社
Simplex Asset Management Co., Ltd.
passive3.9M¥1,459+96.3%¥221M ($1.4M)
2021-08-10BUYMarket Buy
シンプレクス・アセット・マネジメント株式会社
Simplex Asset Management Co., Ltd.
passive3.8M¥1,251+128.9%¥190M ($1.2M)

Frequently asked questions

Who has been buying Seibu Electric & Machinery Co., Ltd. stock?
1 distinct investors have filed 2 disclosed large-shareholding filings in Seibu Electric & Machinery Co., Ltd. (6144), most recently on 2023-12-20. 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 Seibu Electric & Machinery Co., Ltd. have?
Seibu Electric & Machinery Co., Ltd. has 2 buy-side and 0 sell-side disclosures on record, covering ¥221M ($1.4M) in total reported value, spanning 2021-08-10 to 2023-12-20.
Where does StockDrifts get Seibu Electric & Machinery 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 Seibu Electric & Machinery Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.