Who has been buying AGP Corporation stock?

5 distinct investors have filed 4 disclosed large-shareholding filings in AGP Corporation (9377), most recently on 2025-08-22. 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 AGP Corporation have?

AGP Corporation has 4 buy-side and 8 sell-side disclosures on record, covering ¥1.1B ($7.2M) in total reported value, spanning 2022-12-27 to 2025-08-22.

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.

AGP Corporation 9377

Company

株式会社エージーピーAGP Corporation

Investors

Buys

Total Value

¥1.1B ($7.2M)

Avg Return

+44.57%

Last Filing

2025-08-22

AGP Corporation (9377) has 4 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥1.1B ($7.2M) in reported transaction value. The earliest filing StockDrifts holds for AGP Corporation is dated 2022-12-27; the most recent is 2025-08-22. Across these filings the average return since disclosure is +44.57%, 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
2025-08-22	SELL	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	unknown	0	¥1,536	-1.0%	¥1.3B ($8.3M)
2025-08-22	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	14.2K	¥1,536	-	¥22M ($141K)
2025-04-25	SELL	Market Buy	ANAホールディングス株式会社 ANA HOLDINGS INC.	unknown	2.5M	¥1,113	-39.4%	¥23M ($146K)
2025-04-25	BUY	Market Buy	日本航空株式会社 Japan Airlines Co., Ltd.	activist	4.1M	¥1,113	+39.4%	¥74M ($475K)
2025-04-25	SELL	unknown	ANAホールディングス株式会社 ANA HOLDINGS INC.	activist	2.5M	¥1,113	-39.4%	¥23M ($146K)
2025-04-25	BUY	Market Buy	日本空港ビルデング株式会社 Japan Airport Terminal Co.,Ltd.	activist	3.3M	¥1,113	+39.4%	¥117M ($757K)
2025-04-25	BUY	unknown	日本空港ビルデング株式会社 Japan Airport Terminal Co.,Ltd.	unknown	3.3M	¥1,113	+39.4%	¥117M ($757K)
2025-04-25	SELL	Market Buy	ANAホールディングス株式会社 ANA HOLDINGS INC.	unknown	2.5M	¥1,113	-39.4%	¥23M ($146K)
2025-04-07	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	838.9K	¥968	+60.2%	¥812M ($5.2M)
2023-02-10	SELL	negotiated	日本空港ビルデング株式会社 Japan Airport Terminal Co.,Ltd.	strategic	3.3M	¥726	-113.6%	¥102M ($660K)
2022-12-28	SELL	negotiated	日本空港ビルデング株式会社 Japan Airport Terminal Co.,Ltd.	strategic	3.5M	¥745	-108.2%	¥216M ($1.4M)
2022-12-27	SELL	unknown	ANAホールディングス株式会社 ANA HOLDINGS INC.	other	2.6M	¥747	-107.6%	¥165M ($1.1M)
2022-12-27	SELL	unknown	日本航空株式会社 Japan Airlines Co., Ltd.	activist	4.2M	¥747	-107.6%	¥351M ($2.3M)
2022-12-27	BUY	unknown	日本航空株式会社 Japan Airlines Co., Ltd.	activist	4.7M	¥747	-	-

Frequently asked questions

Who has been buying AGP Corporation stock?: 5 distinct investors have filed 4 disclosed large-shareholding filings in AGP Corporation (9377), most recently on 2025-08-22. 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 AGP Corporation have?: AGP Corporation has 4 buy-side and 8 sell-side disclosures on record, covering ¥1.1B ($7.2M) in total reported value, spanning 2022-12-27 to 2025-08-22.
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.