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.

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.

Mansei Corporation 7565

Company

萬世電機株式会社Mansei Corporation

Investors

Buys

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. 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

Date	Type	Source	Insider	Purpose	Shares	Price at filing	Return	Value
2026-05-29	BUY	negotiated	占部朋子	strategic	37.9K	¥6,040	-	¥229M ($1.5M)
2026-05-29	BUY	Market Buy	日光産業株式会社	strategic	150.0K	¥6,040	+28.3%	¥262M ($1.7M)
2026-05-29	BUY	negotiated	占部朋子	strategic	37.9K	¥6,040	-	¥229M ($1.5M)
2026-05-29	BUY	Market Buy	日光産業株式会社	strategic	150.0K	¥6,040	+28.3%	¥262M ($1.7M)
2024-12-03	SELL	negotiated	日光産業株式会社 Nikkosangyo Co., Ltd.	strategic	150.0K	¥4,120	-88.1%	¥480M ($3.1M)
2024-11-12	SELL	unknown	ブラッククローバーリミテッド(Black Clover Limited) Black Clover Limited	activist	0	¥3,690	-110.0%	¥1.5B ($9.5M)
2024-11-08	SELL	negotiated	三菱電機株式会社 Mitsubishi Electric Corporation	strategic	350.1K	¥3,530	-119.5%	¥529M ($3.4M)
2024-01-31	BUY	Market Buy	ブラッククローバーリミテッド(Black Clover Limited) Black Clover Limited	activist	397.3K	¥3,340	+132.0%	¥313M ($2.0M)
2023-04-26	SELL	unknown	ブラッククローバーリミテッド(Black Clover Limited) Black Clover Limited	activist	303.6K	¥3,185	-143.3%	¥95M ($614K)
2022-11-29	BUY	Market Buy	ブラッククローバーリミテッド(Black Clover Limited) Black Clover Limited	activist	333.6K	¥3,035	+155.3%	¥98M ($635K)
2021-12-21	BUY	Market Buy	ブラッククローバーリミテッド(Black Clover Limited) Black Clover Limited	activist	301.1K	¥3,270	+137.0%	¥84M ($543K)
2021-10-04	BUY	Market Buy	ブラッククローバーリミテッド(Black Clover Limited) Black Clover Limited	passive	275.4K	¥3,240	+139.2%	¥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.
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.