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.

Where does StockDrifts get UACJ 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.

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. 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 +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
2026-02-26	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	+12.4%	¥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	+13.8%	¥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	+13.9%	¥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	-55.3%	¥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	+138.9%	¥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	+160.2%	¥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	+183.3%	¥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	+120.9%	¥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	-136.3%	¥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	+122.1%	¥964M ($6.2M)
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	-122.1%	¥191M ($1.2M)
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	-122.1%	¥311M ($2.0M)
2025-02-07	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	44.1K	¥1,315	-122.1%	¥127M ($820K)
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	+133.7%	¥246M ($1.6M)
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	-133.7%	¥36M ($234K)
2024-10-07	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	142.3K	¥1,250	-133.7%	¥828M ($5.3M)
2024-10-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	733.1K	¥1,250	+133.7%	¥916M ($5.9M)
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	+137.2%	¥242M ($1.6M)
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	-137.2%	¥48M ($307K)
2024-09-06	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	804.6K	¥1,231.25	-137.2%	¥565M ($3.6M)
2024-09-06	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	733.1K	¥1,231.25	+137.2%	¥903M ($5.8M)
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	+135.1%	¥685M ($4.4M)
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	+138.4%	¥240M ($1.6M)
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	+138.4%	¥302M ($1.9M)
2024-08-22	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	1.3M	¥1,225	-138.4%	¥835M ($5.4M)
2024-08-22	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	733.1K	¥1,225	+138.4%	¥898M ($5.8M)
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	+158.8%	¥649M ($4.2M)
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	-195.1%	¥5M ($31K)
2024-07-22	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	1.9M	¥990	-195.1%	¥321M ($2.1M)
2024-07-22	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	733.1K	¥990	+195.1%	¥726M ($4.7M)
2024-07-02	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.9M	¥986.25	+196.2%	¥76M ($492K)
2024-07-02	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	2.3M	¥986.25	-196.2%	¥71M ($461K)
2024-07-02	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	733.1K	¥986.25	+196.2%	¥723M ($4.7M)
2024-06-27	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.8M	¥963.75	+203.1%	¥33M ($210K)
2024-06-27	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	2.3M	¥963.75	-203.1%	¥210M ($1.4M)
2024-06-27	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	733.1K	¥963.75	+203.1%	¥707M ($4.6M)
2024-06-17	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.8M	¥981.25	+197.7%	¥100M ($642K)
2024-06-17	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	2.6M	¥981.25	+197.7%	¥2.5B ($16.2M)
2024-06-17	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	733.1K	¥981.25	+197.7%	¥719M ($4.6M)
2024-06-12	SELL	unknown	古河電気工業株式会社 Furukawa Electric Co., Ltd.	strategic	9.4M	¥1,007.5	-189.9%	¥2.6B ($16.9M)
2024-05-22	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.7M	¥1,083.75	+169.5%	¥1.9B ($11.9M)
2024-05-22	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	733.1K	¥1,083.75	+169.5%	¥794M ($5.1M)
2024-03-15	SELL	unknown	古河電気工業株式会社 Furukawa Electric Co., Ltd.	other	12.0M	¥1,061.25	-175.2%	¥1.6B ($10.6M)
2024-01-10	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	7.6M	¥945	+209.1%	¥7.2B ($46.6M)
2023-10-03	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	7.6M	¥772.5	+278.1%	¥5.9B ($38.1M)
2023-10-02	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	7.6M	¥790	+269.8%	¥6.0B ($39.0M)
2023-09-11	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	7.6M	¥763.75	+282.4%	¥5.8B ($37.7M)
2023-09-08	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	7.6M	¥763.75	+282.4%	¥5.8B ($37.7M)
2023-08-18	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	7.6M	¥771.25	+278.7%	¥5.9B ($38.0M)
2023-07-20	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	7.6M	¥670.75	+335.5%	¥5.1B ($33.1M)

Showing the 50 most recent of 98 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.
Where does StockDrifts get UACJ 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 UACJ Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.