Who has been buying G Three Holdings Corporation stock?

7 distinct investors have filed 9 disclosed large-shareholding filings in G Three Holdings Corporation (3647), most recently on 2026-03-12. 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 G Three Holdings Corporation have?

G Three Holdings Corporation has 9 buy-side and 13 sell-side disclosures on record, covering ¥1.7B ($11.0M) in total reported value, spanning 2022-05-24 to 2026-03-12.

Where does StockDrifts get G Three Holdings 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.

G Three Holdings Corporation 3647

Company

株式会社ジー・スリーホールディングスG Three Holdings Corporation

Investors

Buys

Total Value

¥1.7B ($11.0M)

Avg Return

-26.38%

Last Filing

2026-03-12

G Three Holdings Corporation (3647) has 9 disclosed large-shareholding filings and 13 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥1.7B ($11.0M) in reported transaction value. The earliest filing StockDrifts holds for G Three Holdings Corporation is dated 2022-05-24; the most recent is 2026-03-12. 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 -26.38%, 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
2026-03-12	SELL	Market Buy	西村浩 Hiroshi Nishimura	passive	2.6M	¥146	+6.2%	¥129M ($833K)
2026-02-25	SELL	private	みらい再生支援機構合同会社 Mirai Saisei Shienkikou LLC.	passive	5.3M	¥147	+6.8%	¥16M ($103K)
2026-02-19	SELL	private	みらい再生支援機構合同会社 Mirai Saisei Shienkikou LLC.	passive	5.4M	¥147	+6.8%	¥76M ($491K)
2025-11-17	BUY	private	みらい再生支援機構合同会社 Mirai Saisei Shienkikou LLC.	passive	6.0M	¥136	+0.7%	¥816M ($5.3M)
2024-08-01	BUY	unknown	株式会社ふぉー優 Foryou.Co.,Ltd.	other	520.0K	¥145	-5.5%	¥75M ($486K)
2024-08-01	BUY	unknown	株式会社ふぉー優 Foryou.Co.,Ltd.	other	520.0K	¥145	-5.5%	¥75M ($486K)
2024-08-01	BUY	unknown	株式会社SBYデジタルプロダクツ SBY Digital Products Co., Ltd.	other	550.0K	¥145	-5.5%	¥80M ($515K)
2024-08-01	BUY	unknown	株式会社SBYデジタルプロダクツ SBY Digital Products Co., Ltd.	other	550.0K	¥145	-5.5%	¥80M ($515K)
2024-08-01	BUY	unknown	株式会社SBYデジタルプロダクツ SBY Digital Products Co., Ltd.	other	550.0K	¥145	-5.5%	¥80M ($515K)
2024-08-01	BUY	unknown	株式会社SBYデジタルプロダクツ SBY Digital Products Co., Ltd.	other	550.0K	¥145	-5.5%	¥80M ($515K)
2024-08-01	BUY	unknown	株式会社SBYデジタルプロダクツ SBY Digital Products Co., Ltd.	other	550.0K	¥145	-5.5%	¥80M ($515K)
2024-08-01	BUY	unknown	株式会社SBYデジタルプロダクツ SBY Digital Products Co., Ltd.	other	550.0K	¥145	-5.5%	¥80M ($515K)
2024-08-01	SELL	unknown	株式会社SBYデジタルプロダクツ SBY Digital Products Co., Ltd.	other	550.0K	¥145	+5.5%	¥6M ($42K)
2024-08-01	BUY	unknown	株式会社SBYデジタルプロダクツ SBY Digital Products Co., Ltd.	other	550.0K	¥145	-5.5%	¥80M ($515K)
2024-08-01	SELL	unknown	株式会社ふぉー優 Foryou.Co.,Ltd.	other	220.0K	¥145	+5.5%	¥43M ($280K)
2024-08-01	SELL	unknown	株式会社ふぉー優 Foryou.Co.,Ltd.	other	520.0K	¥145	+5.5%	¥6M ($40K)
2024-08-01	SELL	unknown	株式会社ふぉー優 Foryou.Co.,Ltd.	other	220.0K	¥145	+5.5%	¥43M ($280K)
2024-08-01	BUY	unknown	株式会社ふぉー優 Foryou.Co.,Ltd.	other	520.0K	¥145	-5.5%	¥75M ($486K)
2024-08-01	BUY	unknown	株式会社ふぉー優 Foryou.Co.,Ltd.	other	520.0K	¥145	-5.5%	¥75M ($486K)
2024-08-01	BUY	unknown	株式会社ふぉー優 Foryou.Co.,Ltd.	other	220.0K	¥145	-5.5%	¥32M ($206K)
2024-02-27	BUY	Market Buy	西村浩 Hiroshi Nishimura	activist	3.0M	¥125	+9.6%	¥138M ($887K)
2024-02-27	BUY	unknown	西村浩 Hiroshi Nishimura	activist	3.0M	¥125	+9.6%	¥138M ($887K)
2023-09-01	BUY	Market Buy	西村浩 Hiroshi Nishimura	passive	1.7M	¥165	-17.0%	¥76M ($489K)
2022-11-15	BUY	Market Buy	西村浩 Hiroshi Nishimura	passive	1.2M	¥208	-34.1%	¥250M ($1.6M)
2022-11-15	SELL	Market Buy	株式会社オーバービュー OVERVIEW CO.,LTD.	passive	742.5K	¥208	+34.1%	¥416M ($2.7M)
2022-11-15	BUY	Market Buy	西村浩 Hiroshi Nishimura	passive	1.2M	¥208	-34.1%	¥250M ($1.6M)
2022-10-25	BUY	Market Buy	株式会社オーバービュー OVERVIEW CO.,LTD.	passive	2.7M	¥225	-39.1%	¥617M ($4.0M)
2022-10-17	SELL	Market Buy	エコ・キャピタル合同会社代表社員株式会社タイズコーポレーション職務執行者戸村善照 ECO CAPITAL	passive	0	¥245	+44.1%	¥600M ($3.9M)
2022-10-17	BUY	Market Buy	エコ・キャピタル合同会社代表社員株式会社タイズコーポレーション職務執行者戸村善照 ECO CAPITAL	passive	0	¥245	-44.1%	¥600M ($3.9M)
2022-10-12	BUY	Market Buy	エコ・キャピタル合同会社代表社員株式会社タイズコーポレーション職務執行者戸村善照 ECO CAPITAL	passive	2.5M	¥235	-41.7%	¥576M ($3.7M)
2022-10-12	BUY	Market Buy	エコ・キャピタル合同会社代表社員株式会社タイズコーポレーション職務執行者戸村善照 ECO CAPITAL	passive	2.5M	¥235	-41.7%	¥576M ($3.7M)
2022-05-24	BUY	unknown	株式会社SBYデジタルプロダクツ SBY Digital Products Co., Ltd.	other	550.0K	¥226	-39.4%	¥34M ($219K)
2022-05-24	SELL	unknown	奥田泰司 Yasushi Okuda	other	0	¥226	+39.4%	¥34M ($219K)
2022-05-24	BUY	unknown	株式会社SBYデジタルプロダクツ SBY Digital Products Co., Ltd.	other	550.0K	¥226	-39.4%	¥34M ($219K)
2022-05-24	SELL	unknown	奥田泰司 Yasushi Okuda	other	0	¥226	+39.4%	¥34M ($219K)
2022-05-24	BUY	unknown	株式会社SBYデジタルプロダクツ SBY Digital Products Co., Ltd.	other	550.0K	¥226	-39.4%	¥34M ($219K)
2022-05-24	SELL	unknown	奥田泰司 Yasushi Okuda	other	0	¥226	+39.4%	¥34M ($219K)
2022-05-24	BUY	unknown	株式会社SBYデジタルプロダクツ SBY Digital Products Co., Ltd.	other	550.0K	¥226	-39.4%	¥34M ($219K)
2022-05-24	SELL	unknown	奥田泰司 Yasushi Okuda	other	0	¥226	+39.4%	¥34M ($219K)
2022-05-24	BUY	unknown	株式会社ふぉー優 Foryou.Co.,Ltd.	other	520.0K	¥226	-39.4%	¥118M ($758K)
2022-05-24	BUY	unknown	株式会社ふぉー優 Foryou.Co.,Ltd.	other	520.0K	¥226	-39.4%	¥118M ($758K)
2022-05-24	BUY	unknown	株式会社ふぉー優 Foryou.Co.,Ltd.	other	520.0K	¥226	-39.4%	¥118M ($758K)
2022-05-24	BUY	unknown	株式会社ふぉー優 Foryou.Co.,Ltd.	other	520.0K	¥226	-39.4%	¥118M ($758K)

Frequently asked questions

Who has been buying G Three Holdings Corporation stock?: 7 distinct investors have filed 9 disclosed large-shareholding filings in G Three Holdings Corporation (3647), most recently on 2026-03-12. 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 G Three Holdings Corporation have?: G Three Holdings Corporation has 9 buy-side and 13 sell-side disclosures on record, covering ¥1.7B ($11.0M) in total reported value, spanning 2022-05-24 to 2026-03-12.
Where does StockDrifts get G Three Holdings 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 G Three Holdings Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.