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Mansei Corporation 7565

Company
萬世電機株式会社Mansei Corporation
Investors
3
Buys
4
Total Value
¥313M ($2.0M)
Avg Return
+85.88%
Last Filing
2024-12-03

Mansei Corporation (7565) has 4 disclosed large-shareholding filings and 4 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥313M ($2.0M) in reported transaction value. The earliest filing StockDrifts holds for Mansei Corporation is dated 2021-10-04; the most recent is 2024-12-03. 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 +85.88%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-05-29BUYnegotiated
占部 朋子
strategic37.9K¥6,040-1.3%¥229M ($1.5M)
2026-05-29BUYMarket Buy
日光産業株式会社
strategic150.0K¥6,040-1.3%¥262M ($1.7M)
2026-05-29BUYnegotiated
占部 朋子
strategic37.9K¥6,040-1.3%¥229M ($1.5M)
2026-05-29BUYMarket Buy
日光産業株式会社
strategic150.0K¥6,040-1.3%¥262M ($1.7M)
2024-12-03SELLnegotiated
日光産業株式会社
Nikkosangyo Co., Ltd.
strategic150.0K¥4,120-45.1%¥480M ($3.1M)
2024-11-12SELLunknown
ブラッククローバーリミテッド(Black Clover Limited)
Black Clover Limited
activist0¥3,690-62.1%¥1.5B ($9.5M)
2024-11-08SELLnegotiated
三菱電機株式会社
Mitsubishi Electric Corporation
strategic350.1K¥3,530-69.4%¥529M ($3.4M)
2024-01-31BUYMarket Buy
ブラッククローバーリミテッド(Black Clover Limited)
Black Clover Limited
activist397.3K¥3,340+79.0%¥313M ($2.0M)
2023-04-26SELLunknown
ブラッククローバーリミテッド(Black Clover Limited)
Black Clover Limited
activist303.6K¥3,185-87.8%¥95M ($614K)
2022-11-29BUYMarket Buy
ブラッククローバーリミテッド(Black Clover Limited)
Black Clover Limited
activist333.6K¥3,035+97.0%¥98M ($635K)
2021-12-21BUYMarket Buy
ブラッククローバーリミテッド(Black Clover Limited)
Black Clover Limited
activist301.1K¥3,270+82.9%¥84M ($543K)
2021-10-04BUYMarket Buy
ブラッククローバーリミテッド(Black Clover Limited)
Black Clover Limited
passive275.4K¥3,240+84.6%¥129M ($832K)

Frequently asked questions

Who has been buying Mansei Corporation stock?
3 distinct investors have filed 4 disclosed large-shareholding filings in Mansei Corporation (7565), most recently on 2024-12-03. 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 Mansei Corporation have?
Mansei Corporation has 4 buy-side and 4 sell-side disclosures on record, covering ¥313M ($2.0M) in total reported value, spanning 2021-10-04 to 2024-12-03.
Where does StockDrifts get Mansei Corporation 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 Mansei Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.