Who has been buying j-Group Holdings Corp. stock?

3 distinct investors have filed 8 disclosed large-shareholding filings in j-Group Holdings Corp. (3063), most recently on 2025-09-02. 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 j-Group Holdings Corp. have?

j-Group Holdings Corp. has 8 buy-side and 38 sell-side disclosures on record, covering ¥272M ($1.8M) in total reported value, spanning 2022-03-01 to 2025-09-02.

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.

j-Group Holdings Corp. 3063

Company

株式会社ジェイグループホールディングスj-Group Holdings Corp.

Investors

Buys

Total Value

¥272M ($1.8M)

Avg Return

+29.86%

Last Filing

2025-09-02

j-Group Holdings Corp. (3063) has 8 disclosed large-shareholding filings and 38 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥272M ($1.8M) in reported transaction value. The earliest filing StockDrifts holds for j-Group Holdings Corp. is dated 2022-03-01; the most recent is 2025-09-02. Across these filings the average return since disclosure is +29.86%, 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
2026-09-07	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	723.1K	¥1,154	+0.9%	¥834M ($5.4M)
2026-09-04	BUY	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	750.0K	¥1,144	+1.8%	¥858M ($5.5M)
2026-09-03	SELL	unknown	有限会社ニューフィールド	strategic	2.0M	¥1,116	-4.3%	¥22M ($144K)
2026-09-03	BUY	Market Buy	新田二郎	activist	490.0K	¥1,116	+4.3%	¥99M ($640K)
2026-09-03	SELL	unknown	有限会社ニューフィールド	strategic	2.0M	¥1,116	-4.3%	¥22M ($144K)
2026-09-03	BUY	Market Buy	新田二郎	activist	490.0K	¥1,116	+4.3%	¥99M ($640K)
2026-09-03	SELL	unknown	有限会社ニューフィールド	strategic	2.0M	¥1,116	-4.3%	¥22M ($144K)
2026-09-03	BUY	Market Buy	新田二郎	activist	490.0K	¥1,116	+4.3%	¥99M ($640K)
2026-06-19	SELL	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	0	¥1,075	-8.3%	¥964M ($6.2M)
2025-09-02	BUY	negotiated	新田二郎 Jiro Nitta	activist	400.0K	¥741	-	-
2025-09-02	BUY	negotiated	有限会社ニューフィールド Newfield Co., Ltd.	strategic	2.0M	¥741	-	-
2025-09-02	BUY	negotiated	有限会社ニューフィールド Newfield Co., Ltd.	strategic	2.0M	¥741	-	-
2025-09-02	BUY	negotiated	新田二郎 Jiro Nitta	activist	400.0K	¥741	-	-
2025-09-01	BUY	Market Buy	新田二郎 Jiro Nitta	activist	400.0K	¥750	+55.2%	¥74M ($480K)
2025-09-01	BUY	negotiated	新田二郎 Jiro Nitta	activist	400.0K	¥750	+55.2%	¥74M ($480K)
2025-09-01	BUY	negotiated	有限会社ニューフィールド Newfield Co., Ltd.	strategic	2.0M	¥750	-	-
2025-09-01	BUY	Market Buy	有限会社ニューフィールド Newfield Co., Ltd.	strategic	2.0M	¥750	-	-
2025-08-19	SELL	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	950.0K	¥789	-47.5%	¥489M ($3.2M)
2025-08-19	BUY	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	950.0K	¥789	-	¥489M ($3.2M)
2025-03-07	BUY	negotiated	新田二郎 Jiro Nitta	activist	300.0K	¥686	-	-
2025-03-07	BUY	negotiated	有限会社ニューフィールド Newfield Co., Ltd.	strategic	2.0M	¥686	-	-
2025-03-05	BUY	Market Buy	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	1.7M	¥689	+68.9%	¥123M ($794K)
2025-03-03	SELL	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	1.5M	¥684	-70.2%	¥122M ($788K)
2024-09-04	BUY	Market Buy	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	1.7M	¥647	+79.9%	¥113M ($730K)
2024-09-02	SELL	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	1.5M	¥647	-79.9%	¥159M ($1.0M)
2024-08-29	SELL	negotiated	新田二郎 Jiro Nitta	activist	300.0K	¥665	-75.0%	¥3M ($21K)
2024-08-29	SELL	negotiated	有限会社ニューフィールド Newfield Co., Ltd.	strategic	2.0M	¥665	-75.0%	¥24M ($154K)
2024-05-28	SELL	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	1.8M	¥635	-83.3%	¥79M ($510K)
2024-03-18	BUY	negotiated	新田二郎 Jiro Nitta	activist	300.0K	¥626	-	-
2024-03-18	BUY	negotiated	有限会社ニューフィールド Newfield Co., Ltd.	strategic	2.0M	¥626	-	-
2024-03-14	BUY	Market Buy	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	1.9M	¥624	+86.5%	¥107M ($691K)
2024-03-06	SELL	negotiated	新田二郎 Jiro Nitta	activist	300.0K	¥640	-81.9%	¥5M ($30K)
2024-03-06	SELL	negotiated	有限会社ニューフィールド Newfield Co., Ltd.	strategic	2.0M	¥640	-81.9%	¥31M ($201K)
2024-03-04	SELL	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	1.7M	¥630	-84.8%	¥184M ($1.2M)
2023-12-08	SELL	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	2.1M	¥568	-104.9%	¥70M ($454K)
2023-11-14	BUY	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	2.2M	¥569	+104.6%	¥1.3B ($8.1M)
2023-11-09	BUY	negotiated	有限会社ニューフィールド Newfield Co., Ltd.	strategic	2.0M	¥569	-	-
2023-11-09	BUY	negotiated	新田二郎 Jiro Nitta	activist	300.0K	¥569	-	-
2023-08-31	BUY	negotiated	新田二郎 Jiro Nitta	activist	300.0K	¥562	-	-
2023-08-31	BUY	negotiated	新田二郎 Jiro Nitta	activist	300.0K	¥562	-	-
2023-08-31	BUY	negotiated	有限会社ニューフィールド Newfield Co., Ltd.	strategic	2.0M	¥562	-	-
2023-08-31	BUY	negotiated	有限会社ニューフィールド Newfield Co., Ltd.	strategic	2.0M	¥562	-	-
2023-04-17	SELL	negotiated	新田二郎 Jiro Nitta	activist	300.0K	¥469	-148.2%	¥2M ($11K)
2023-04-17	SELL	negotiated	有限会社ニューフィールド Newfield Co., Ltd.	strategic	2.0M	¥469	-148.2%	¥12M ($76K)
2023-03-06	SELL	negotiated	新田二郎 Jiro Nitta	activist	300.0K	¥467	-149.3%	¥15M ($96K)
2023-03-06	SELL	negotiated	有限会社ニューフィールド Newfield Co., Ltd.	strategic	2.0M	¥467	-149.3%	¥100M ($644K)
2023-01-19	SELL	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	580.1K	¥475	-145.1%	¥61M ($396K)
2023-01-06	SELL	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	713.7K	¥443	-162.8%	¥98M ($631K)
2022-12-05	SELL	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	944.3K	¥496	-134.7%	¥58M ($373K)
2022-11-18	SELL	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	1.1M	¥497	-134.2%	¥60M ($384K)

Showing the 50 most recent of 78 filings.

Frequently asked questions

Who has been buying j-Group Holdings Corp. stock?: 3 distinct investors have filed 8 disclosed large-shareholding filings in j-Group Holdings Corp. (3063), most recently on 2025-09-02. 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 j-Group Holdings Corp. have?: j-Group Holdings Corp. has 8 buy-side and 38 sell-side disclosures on record, covering ¥272M ($1.8M) in total reported value, spanning 2022-03-01 to 2025-09-02.
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.