Who has been buying UACJ Corporation stock?

8 distinct investors have filed 22 disclosed large-shareholding filings in UACJ Corporation (5741), most recently on 2026-02-26. 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 UACJ Corporation have?

UACJ Corporation has 22 buy-side and 17 sell-side disclosures on record, covering ¥39.0B ($251.9M) in total reported value, spanning 2021-03-24 to 2026-02-26.

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.

UACJ Corporation 5741

Company

株式会社ＵＡＣＪUACJ Corporation

Investors

Buys

Total Value

¥39.0B ($251.9M)

Avg Return

+227.70%

Last Filing

2026-02-26

UACJ Corporation (5741) has 22 disclosed large-shareholding filings and 17 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥39.0B ($251.9M) in reported transaction value. The earliest filing StockDrifts holds for UACJ Corporation is dated 2021-03-24; the most recent is 2026-02-26. Across these filings the average return since disclosure is +227.70%, 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
2026-10-22	BUY	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	180.9K	¥1,915	-	-
2026-10-22	SELL	unknown	アセットマネジメントOne株式会社	other	9.3M	¥1,915	+2.3%	¥248M ($1.6M)
2026-10-22	SELL	unknown	みずほ証券株式会社	other	10.9M	¥1,915	+2.3%	¥3.0B ($19.5M)
2026-10-22	BUY	unknown	株式会社みずほ銀行	strategic	2.9M	¥1,915	-	-
2026-10-06	SELL	unknown	みずほ証券株式会社	other	12.5M	¥2,183	+14.3%	¥324M ($2.1M)
2026-10-06	BUY	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	185.9K	¥2,183	-	-
2026-10-06	BUY	unknown	株式会社みずほ銀行	strategic	2.9M	¥2,183	-	-
2026-10-06	BUY	unknown	アセットマネジメントOne株式会社	other	9.4M	¥2,183	-	-
2026-10-05	BUY	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	185.9K	¥2,167	-	-
2026-10-05	SELL	unknown	みずほ証券株式会社	other	12.6M	¥2,167	+13.7%	¥602M ($3.9M)
2026-10-05	SELL	unknown	アセットマネジメントOne株式会社	other	9.4M	¥2,167	+13.7%	¥40M ($259K)
2026-10-05	BUY	unknown	株式会社みずほ銀行	strategic	2.9M	¥2,167	-	-
2026-10-02	SELL	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	185.9K	¥2,167	+13.7%	¥643M ($4.1M)
2026-10-02	SELL	unknown	アセットマネジメントOne株式会社	other	9.4M	¥2,167	+13.7%	¥964M ($6.2M)
2026-10-02	BUY	unknown	みずほ証券株式会社	other	12.9M	¥2,167	-	¥28.0B ($180.5M)
2026-10-02	BUY	unknown	株式会社みずほ銀行	strategic	2.9M	¥2,167	-	-
2026-09-28	SELL	unknown	古河電気工業株式会社 Furukawa Electric Co., Ltd.	unknown	0	¥2,251	+16.9%	¥28.7B ($185.2M)
2026-08-24	BUY	Market Buy	エフィッシモキャピタルマネージメントピーティーイーエルティーディー(Effissimo Capital Management Pte. Ltd.) Effissimo Capital Management Pte. Ltd.	passive	45.0M	¥2,367	-	-
2026-02-26	BUY	Market Buy	エフィッシモキャピタルマネージメントピーティーイーエルティーディー(Effissimo Capital Management Pte. Ltd.) Effissimo Capital Management Pte. Ltd.	passive	45.0M	¥2,598	-28.0%	¥4.8B ($30.8M)
2026-02-06	BUY	Market Buy	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	13.3M	¥2,567	-27.1%	¥8.0B ($51.9M)
2026-02-05	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	9.3M	¥2,565	-27.1%	¥23.9B ($154.0M)
2025-12-05	SELL	unknown	古河電気工業株式会社 Furukawa Electric Co., Ltd.	strategic	12.7M	¥1,881	+0.5%	¥22.9B ($147.8M)
2025-06-18	BUY	Market Buy	エフィッシモキャピタルマネージメントピーティーイーエルティーディー(Effissimo Capital Management Pte. Ltd.) Effissimo Capital Management Pte. Ltd.	passive	10.8M	¥1,222.5	+53.0%	¥600M ($3.9M)
2025-04-14	BUY	Market Buy	エフィッシモキャピタルマネージメントピーティーイーエルティーディー(Effissimo Capital Management Pte. Ltd.) Effissimo Capital Management Pte. Ltd.	passive	10.3M	¥1,122.5	+66.7%	¥525M ($3.4M)
2025-04-07	BUY	Market Buy	エフィッシモキャピタルマネージメントピーティーイーエルティーディー(Effissimo Capital Management Pte. Ltd.) Effissimo Capital Management Pte. Ltd.	passive	9.8M	¥1,031.25	+81.4%	¥936M ($6.0M)
2025-03-03	BUY	Market Buy	エフィッシモキャピタルマネージメントピーティーイーエルティーディー(Effissimo Capital Management Pte. Ltd.) Effissimo Capital Management Pte. Ltd.	passive	9.3M	¥1,322.5	+41.5%	¥709M ($4.6M)
2025-02-17	SELL	unknown	古河電気工業株式会社 Furukawa Electric Co., Ltd.	strategic	6.5M	¥1,236.25	-51.3%	¥3.6B ($23.4M)
2025-02-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	733.1K	¥1,315	-	-
2025-02-07	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	44.1K	¥1,315	-42.3%	¥127M ($820K)
2025-02-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.9M	¥1,315	-42.3%	¥311M ($2.0M)
2025-02-07	SELL	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	52.9K	¥1,315	-42.3%	¥191M ($1.2M)
2024-10-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	733.1K	¥1,250	-	-
2024-10-07	BUY	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	197.1K	¥1,250	-	-
2024-10-07	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	142.3K	¥1,250	-49.7%	¥828M ($5.3M)
2024-10-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.1M	¥1,250	-49.7%	¥36M ($234K)
2024-09-06	BUY	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	196.2K	¥1,231.25	-	-
2024-09-06	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	733.1K	¥1,231.25	-	-
2024-09-06	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	804.6K	¥1,231.25	-52.0%	¥565M ($3.6M)
2024-09-06	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.1M	¥1,231.25	-52.0%	¥48M ($307K)
2024-09-04	BUY	Market Buy	エフィッシモキャピタルマネージメントピーティーイーエルティーディー(Effissimo Capital Management Pte. Ltd.) Effissimo Capital Management Pte. Ltd.	passive	8.8M	¥1,242.5	+50.6%	¥685M ($4.4M)
2024-08-22	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	733.1K	¥1,225	-	-
2024-08-22	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	1.3M	¥1,225	-52.7%	¥835M ($5.4M)
2024-08-22	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.2M	¥1,225	+52.7%	¥302M ($1.9M)
2024-08-22	BUY	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	196.2K	¥1,225	-	¥240M ($1.6M)
2024-08-15	BUY	Market Buy	エフィッシモキャピタルマネージメントピーティーイーエルティーディー(Effissimo Capital Management Pte. Ltd.) Effissimo Capital Management Pte. Ltd.	passive	8.2M	¥1,128.75	+65.8%	¥649M ($4.2M)
2024-07-22	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	733.1K	¥990	-	-
2024-07-22	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	1.9M	¥990	-89.0%	¥321M ($2.1M)
2024-07-22	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.9M	¥990	-89.0%	¥5M ($31K)
2024-07-02	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	733.1K	¥986.25	-	-
2024-07-02	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	2.3M	¥986.25	-89.7%	¥71M ($461K)

Showing the 50 most recent of 116 filings.

Frequently asked questions

Who has been buying UACJ Corporation stock?: 8 distinct investors have filed 22 disclosed large-shareholding filings in UACJ Corporation (5741), most recently on 2026-02-26. 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 UACJ Corporation have?: UACJ Corporation has 22 buy-side and 17 sell-side disclosures on record, covering ¥39.0B ($251.9M) in total reported value, spanning 2021-03-24 to 2026-02-26.
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.