Who has been buying Graphite Design Inc. stock?

2 distinct investors have filed 4 disclosed large-shareholding filings in Graphite Design Inc. (7847), most recently on 2025-02-26. 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 Graphite Design Inc. have?

Graphite Design Inc. has 4 buy-side and 1 sell-side disclosures on record, covering ¥289M ($1.9M) in total reported value, spanning 2021-03-19 to 2025-02-26.

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.

Graphite Design Inc. 7847

Company

株式会社グラファイトデザインGraphite Design Inc.

Investors

Buys

Total Value

¥289M ($1.9M)

Avg Return

+3.72%

Last Filing

2025-02-26

Graphite Design Inc. (7847) has 4 disclosed large-shareholding filings and 1 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥289M ($1.9M) in reported transaction value. The earliest filing StockDrifts holds for Graphite Design Inc. is dated 2021-03-19; the most recent is 2025-02-26. Across these filings the average return since disclosure is +3.72%, 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
2025-02-26	BUY	Market Buy	山田拓郎 TAKURO YAMADA	other	943.2K	¥788	-16.0%	¥7M ($46K)
2024-12-06	BUY	unknown	株式会社TNNアドバイザーズ TNN Advisors Co., Ltd	activist	347.3K	¥783	-	¥272M ($1.8M)
2024-12-06	BUY	unknown	株式会社TNNアドバイザーズ TNN Advisors Co., Ltd	activist	347.3K	¥783	-	-
2023-07-26	BUY	unknown	株式会社TNNアドバイザーズ TNN Advisors Co., Ltd	activist	347.3K	¥812	-18.5%	¥282M ($1.8M)
2023-07-26	SELL	unknown	株式会社TNNアドバイザーズ TNN Advisors Co., Ltd	unknown	0	¥812	+18.5%	¥282M ($1.8M)
2022-08-30	BUY	unknown	株式会社TNNアドバイザーズ TNN Advisors Co., Ltd	activist	347.0K	¥644	-	-
2022-08-30	BUY	Market Buy	株式会社TNNアドバイザーズ TNN Advisors Co., Ltd	activist	347.0K	¥644	+2.8%	¥224M ($1.4M)
2021-03-19	BUY	acquisition	株式会社TNNアドバイザーズ TNN Advisors Co., Ltd	activist	347.3K	¥393.304	+68.3%	¥137M ($881K)
2021-03-19	BUY	unknown	株式会社TNNアドバイザーズ TNN Advisors Co., Ltd	activist	347.3K	¥393.304	-	¥137M ($881K)

Frequently asked questions

Who has been buying Graphite Design Inc. stock?: 2 distinct investors have filed 4 disclosed large-shareholding filings in Graphite Design Inc. (7847), most recently on 2025-02-26. 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 Graphite Design Inc. have?: Graphite Design Inc. has 4 buy-side and 1 sell-side disclosures on record, covering ¥289M ($1.9M) in total reported value, spanning 2021-03-19 to 2025-02-26.
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.