Who has been buying GLAD CUBE Inc. stock?

4 distinct investors have filed 8 disclosed large-shareholding filings in GLAD CUBE Inc. (9561), most recently on 2026-04-17. 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 GLAD CUBE Inc. have?

GLAD CUBE Inc. has 8 buy-side and 23 sell-side disclosures on record, covering ¥8.6B ($55.4M) in total reported value, spanning 2022-10-04 to 2026-04-17.

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.

GLAD CUBE Inc. 9561

Company

株式会社グラッドキューブGLAD CUBE Inc.

Investors

Buys

Total Value

¥8.6B ($55.4M)

Avg Return

-44.12%

Last Filing

2026-04-17

GLAD CUBE Inc. (9561) has 8 disclosed large-shareholding filings and 23 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥8.6B ($55.4M) in reported transaction value. The earliest filing StockDrifts holds for GLAD CUBE Inc. is dated 2022-10-04; the most recent is 2026-04-17. Across these filings the average return since disclosure is -44.12%, 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
2026-04-17	BUY	Market Buy	金島弘樹	activist	2.1M	¥454	-4.0%	¥207M ($1.3M)
2026-04-17	BUY	Market Buy	金島弘樹	activist	2.1M	¥454	-4.0%	¥275M ($1.8M)
2026-04-17	SELL	Market Buy	株式会社ゴールドアイランド	activist	3.9M	¥454	+4.0%	¥47M ($304K)
2026-04-17	SELL	unknown	株式会社ゴールドアイランド	activist	3.9M	¥454	+4.0%	¥47M ($301K)
2026-03-23	BUY	Market Buy	山地智功 TOMOYOSHI YAMAJI	passive	623.0K	¥462	-5.6%	¥288M ($1.9M)
2025-10-21	SELL	Market Buy	モバイル・インターネットキャピタル株式会社 Mobile Internet Capital,Inc.	passive	407.4K	¥539	+19.1%	¥46M ($296K)
2024-09-10	SELL	Market Buy	モバイル・インターネットキャピタル株式会社 Mobile Internet Capital,Inc.	passive	479.9K	¥1,067	+59.1%	¥211M ($1.4M)
2024-07-05	SELL	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥775	+43.7%	¥637K ($4K)
2024-07-05	BUY	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥775	-	-
2024-07-05	BUY	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥775	-	-
2024-07-05	SELL	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥775	+43.7%	¥637K ($4K)
2024-05-21	BUY	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥518	-	-
2024-05-21	BUY	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥518	-15.8%	¥5M ($30K)
2024-05-21	BUY	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥518	-	-
2024-05-21	BUY	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥518	-	-
2024-05-13	SELL	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥502	+13.2%	¥5M ($32K)
2024-05-13	SELL	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥502	+13.2%	¥13M ($85K)
2024-04-10	SELL	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥516	+15.5%	¥14M ($88K)
2024-04-10	SELL	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥516	+15.5%	¥72M ($465K)
2024-04-10	SELL	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥516	+15.5%	¥5M ($33K)
2024-04-10	SELL	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥516	+15.5%	¥27M ($174K)
2024-04-10	SELL	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥516	+15.5%	¥27M ($174K)
2024-04-10	SELL	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥516	+15.5%	¥5M ($33K)
2024-04-10	SELL	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥516	+15.5%	¥14M ($88K)
2024-04-10	SELL	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥516	+15.5%	¥72M ($465K)
2024-03-06	SELL	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥556	+21.6%	¥5M ($35K)
2024-03-06	SELL	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥556	+21.6%	¥29M ($187K)
2024-03-06	SELL	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥556	+21.6%	¥78M ($501K)
2024-03-06	SELL	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥556	+21.6%	¥15M ($94K)
2023-09-15	SELL	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥511	+14.7%	¥27M ($172K)
2023-09-15	SELL	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥511	+14.7%	¥27M ($172K)
2023-09-15	BUY	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥511	-	¥751M ($4.8M)
2023-09-15	BUY	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥511	-	¥2.0B ($12.9M)
2023-09-15	SELL	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥511	+14.7%	¥71M ($460K)
2023-09-15	SELL	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥511	+14.7%	¥71M ($460K)
2022-10-05	BUY	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥1,340	-67.5%	¥2.0B ($12.7M)
2022-10-05	BUY	unknown	金島弘樹 HIROKI KANESHIMA	activist	1.5M	¥1,340	-67.5%	¥2.0B ($12.7M)
2022-10-05	BUY	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥1,340	-67.5%	¥5.2B ($33.7M)
2022-10-05	BUY	unknown	株式会社ゴールドアイランド Gold Island Co., Ltd.	activist	3.9M	¥1,340	-67.5%	¥5.2B ($33.7M)
2022-10-04	BUY	Market Buy	モバイル・インターネットキャピタル株式会社 Mobile Internet Capital,Inc.	passive	649.9K	¥1,274	-65.8%	¥828M ($5.3M)

Frequently asked questions

Who has been buying GLAD CUBE Inc. stock?: 4 distinct investors have filed 8 disclosed large-shareholding filings in GLAD CUBE Inc. (9561), most recently on 2026-04-17. 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 GLAD CUBE Inc. have?: GLAD CUBE Inc. has 8 buy-side and 23 sell-side disclosures on record, covering ¥8.6B ($55.4M) in total reported value, spanning 2022-10-04 to 2026-04-17.
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.