Who has been buying Fuji Seiki Co.,Ltd. stock?

4 distinct investors have filed 25 disclosed large-shareholding filings in Fuji Seiki Co.,Ltd. (6400), most recently on 2024-11-11. 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 Fuji Seiki Co.,Ltd. have?

Fuji Seiki Co.,Ltd. has 25 buy-side and 10 sell-side disclosures on record, covering ¥507M ($3.3M) in total reported value, spanning 2022-01-14 to 2024-11-11.

Where does StockDrifts get Fuji Seiki 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.

Fuji Seiki Co.,Ltd. 6400

Company

不二精機株式会社Fuji Seiki Co.,Ltd.

Investors

Buys

Total Value

¥507M ($3.3M)

Avg Return

-34.57%

Last Filing

2024-11-11

Fuji Seiki Co.,Ltd. (6400) has 25 disclosed large-shareholding filings and 10 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥507M ($3.3M) in reported transaction value. The earliest filing StockDrifts holds for Fuji Seiki Co.,Ltd. is dated 2022-01-14; the most recent is 2024-11-11. 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 -34.57%, 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
2024-11-11	SELL	unknown	伊井剛 Tsuyoshi Ii	activist	241.5K	¥240	-22.1%	¥34M ($220K)
2024-11-11	BUY	unknown	一般社団法人千尋会 chihirokai	activist	942.0K	¥240	+22.1%	¥20M ($129K)
2024-11-11	SELL	unknown	伊井珠美 Tamami Ii	activist	105.0K	¥240	-22.1%	¥4M ($24K)
2024-11-06	BUY	unknown	一般社団法人千尋会 chihirokai	activist	942.0K	¥247	+18.6%	¥21M ($133K)
2024-11-06	SELL	unknown	伊井珠美 Tamami Ii	activist	105.0K	¥247	-18.6%	¥4M ($25K)
2024-11-06	SELL	unknown	伊井剛 Tsuyoshi Ii	activist	241.5K	¥247	-18.6%	¥35M ($227K)
2024-11-06	SELL	unknown	伊井剛 Tsuyoshi Ii	activist	241.5K	¥247	-18.6%	¥35M ($227K)
2024-11-06	BUY	unknown	一般社団法人千尋会 chihirokai	activist	942.0K	¥247	+18.6%	¥21M ($133K)
2024-11-06	SELL	unknown	伊井珠美 Tamami Ii	activist	105.0K	¥247	-18.6%	¥4M ($25K)
2022-01-28	BUY	unknown	一般社団法人千尋会 chihirokai	other	823.4K	¥412	-28.9%	¥339M ($2.2M)
2022-01-14	BUY	Market Buy	伊井珠美 Tamami Ii	activist	164.1K	¥505	-42.0%	¥83M ($535K)
2022-01-14	BUY	unknown	一般社団法人千尋会 chihirokai	activist	858.4K	¥505	-42.0%	¥18M ($115K)
2022-01-14	SELL	unknown	伊井珠美 Tamami Ii	activist	120.0K	¥505	+42.0%	¥22M ($142K)
2022-01-14	BUY	unknown	一般社団法人千尋会 chihirokai	activist	823.4K	¥505	-42.0%	¥416M ($2.7M)
2022-01-14	BUY	unknown	伊井珠美 Tamami Ii	activist	164.1K	¥505	-42.0%	¥83M ($535K)
2022-01-14	BUY	unknown	一般社団法人千尋会 chihirokai	activist	823.4K	¥505	-42.0%	¥11M ($71K)
2022-01-14	BUY	unknown	伊井珠美 Tamami Ii	activist	164.1K	¥505	-42.0%	¥16M ($100K)
2022-01-14	BUY	unknown	一般社団法人千尋会 chihirokai	activist	801.7K	¥505	-42.0%	¥22M ($145K)
2022-01-14	BUY	unknown	伊井珠美 Tamami Ii	activist	133.0K	¥505	-42.0%	¥25M ($162K)
2022-01-14	BUY	unknown	一般社団法人千尋会 chihirokai	strategic	756.7K	¥505	-42.0%	¥382M ($2.5M)
2022-01-14	BUY	unknown	伊井珠美 Tamami Ii	activist	83.0K	¥505	-42.0%	¥42M ($270K)
2022-01-14	BUY	unknown	伊井珠美 Tamami Ii	unknown	83.0K	¥505	-42.0%	¥42M ($270K)
2022-01-14	BUY	unknown	伊井珠美 Tamami Ii	activist	83.0K	¥505	-42.0%	¥42M ($270K)
2022-01-14	BUY	unknown	一般社団法人千尋会 chihirokai	activist	858.4K	¥505	-42.0%	¥18M ($115K)
2022-01-14	SELL	unknown	伊井珠美 Tamami Ii	activist	120.0K	¥505	+42.0%	¥22M ($142K)
2022-01-14	BUY	Market Buy	一般社団法人千尋会 chihirokai	activist	823.4K	¥505	-42.0%	¥416M ($2.7M)
2022-01-14	BUY	Market Buy	一般社団法人千尋会 chihirokai	activist	823.4K	¥505	-42.0%	¥11M ($71K)
2022-01-14	BUY	Market Buy	伊井珠美 Tamami Ii	activist	164.1K	¥505	-42.0%	¥16M ($100K)
2022-01-14	BUY	Market Buy	一般社団法人千尋会 chihirokai	activist	801.7K	¥505	-42.0%	¥22M ($145K)
2022-01-14	BUY	Market Buy	伊井珠美 Tamami Ii	activist	133.0K	¥505	-42.0%	¥25M ($162K)
2022-01-14	BUY	unknown	一般社団法人千尋会 chihirokai	strategic	756.7K	¥505	-42.0%	¥382M ($2.5M)
2022-01-14	BUY	unknown	伊井珠美 Tamami Ii	activist	83.0K	¥505	-42.0%	¥42M ($270K)
2022-01-14	BUY	unknown	伊井珠美 Tamami Ii	unknown	83.0K	¥505	-42.0%	¥42M ($270K)
2022-01-14	BUY	unknown	伊井珠美 Tamami Ii	activist	83.0K	¥505	-42.0%	¥42M ($270K)
2022-01-14	BUY	unknown	伊井剛 IITAKESHI	activist	535.6K	¥505	-42.0%	¥270M ($1.7M)
2022-01-14	BUY	unknown	伊井剛 IITAKESHI	activist	535.6K	¥505	-42.0%	¥270M ($1.7M)
2022-01-14	BUY	Market Buy	伊井剛 IITAKESHI	activist	635.6K	¥505	-42.0%	¥50M ($325K)
2022-01-14	BUY	Market Buy	伊井剛 IITAKESHI	activist	692.1K	¥505	-42.0%	¥29M ($186K)
2022-01-14	BUY	Market Buy	伊井剛 IITAKESHI	activist	694.1K	¥505	-42.0%	¥1M ($9K)
2022-01-14	SELL	unknown	伊井剛 IITAKESHI	activist	383.6K	¥505	+42.0%	¥157M ($1.0M)
2022-01-14	BUY	unknown	伊井剛 IITAKESHI	activist	535.6K	¥505	-42.0%	¥270M ($1.7M)
2022-01-14	BUY	unknown	伊井剛 IITAKESHI	activist	535.6K	¥505	-42.0%	¥270M ($1.7M)
2022-01-14	BUY	unknown	伊井剛 IITAKESHI	activist	635.6K	¥505	-42.0%	¥50M ($324K)
2022-01-14	BUY	unknown	伊井剛 IITAKESHI	activist	692.1K	¥505	-42.0%	¥29M ($186K)
2022-01-14	BUY	unknown	伊井剛 IITAKESHI	activist	694.1K	¥505	-42.0%	¥1M ($9K)
2022-01-14	SELL	unknown	伊井剛 IITAKESHI	activist	383.6K	¥505	+42.0%	¥157M ($1.0M)

Frequently asked questions

Who has been buying Fuji Seiki Co.,Ltd. stock?: 4 distinct investors have filed 25 disclosed large-shareholding filings in Fuji Seiki Co.,Ltd. (6400), most recently on 2024-11-11. 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 Fuji Seiki Co.,Ltd. have?: Fuji Seiki Co.,Ltd. has 25 buy-side and 10 sell-side disclosures on record, covering ¥507M ($3.3M) in total reported value, spanning 2022-01-14 to 2024-11-11.
Where does StockDrifts get Fuji Seiki 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 Fuji Seiki Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.