Who has been buying Aoyama Trading Co., Ltd. stock?

14 distinct investors have filed 36 disclosed large-shareholding filings in Aoyama Trading Co., Ltd. (8219), most recently on 2025-11-21. 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 Aoyama Trading Co., Ltd. have?

Aoyama Trading Co., Ltd. has 36 buy-side and 29 sell-side disclosures on record, covering ¥4.0B ($25.6M) in total reported value, spanning 2021-04-21 to 2025-11-21.

Where does StockDrifts get Aoyama Trading Co., Ltd. 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.

Aoyama Trading Co., Ltd. 8219

Company

青山商事株式会社Aoyama Trading Co., Ltd.

Investors

Buys

Total Value

¥4.0B ($25.6M)

Avg Return

+159.38%

Last Filing

2025-11-21

Aoyama Trading Co., Ltd. (8219) has 36 disclosed large-shareholding filings and 29 disclosed disposals on record, filed by 14 distinct investors. Together those filings cover ¥4.0B ($25.6M) in reported transaction value. The earliest filing StockDrifts holds for Aoyama Trading Co., Ltd. is dated 2021-04-21; the most recent is 2025-11-21. 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 +159.38%, 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
2025-11-21	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	600.0K	¥799.33	+2.5%	¥480M ($3.1M)
2025-11-21	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.5M	¥799.33	-2.5%	¥419M ($2.7M)
2025-10-22	SELL	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	600.0K	¥774.67	-5.7%	¥27M ($176K)
2025-10-22	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	2.1M	¥774.67	-5.7%	¥402M ($2.6M)
2025-04-07	BUY	unknown	有限会社青山物産 Aoyama Bussan, Ltd.	strategic	1.0M	¥611	+34.0%	¥611M ($3.9M)
2025-04-07	BUY	unknown	青山理 Osamu Aoyama	strategic	1.5M	¥611	+34.0%	¥932M ($6.0M)
2025-04-07	BUY	unknown	株式会社HK HK Co., Ltd.	strategic	3.8M	¥611	+34.0%	¥2.3B ($15.1M)
2025-04-04	BUY	Market Buy	株式会社HK HK Co., Ltd.	strategic	3.8M	¥643.67	+27.2%	¥2.5B ($15.9M)
2025-04-04	BUY	Market Buy	青山理 Osamu Aoyama	strategic	1.5M	¥643.67	+27.2%	¥3M ($21K)
2025-04-04	BUY	Market Buy	有限会社青山物産 Aoyama Bussan, Ltd.	strategic	1.0M	¥643.67	+27.2%	¥644M ($4.2M)
2025-02-06	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	665.1K	¥706.67	-15.9%	¥7M ($46K)
2025-02-06	SELL	negotiated	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	1.3M	¥706.67	-15.9%	¥185M ($1.2M)
2025-02-06	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	273.5K	¥706.67	-15.9%	¥196M ($1.3M)
2024-11-08	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	26.7K	¥443	+84.9%	¥1.0B ($6.7M)
2024-11-08	SELL	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	636.4K	¥443	-84.9%	¥161M ($1.0M)
2024-11-08	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	2.6M	¥443	-84.9%	¥47M ($302K)
2024-10-04	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	677.1K	¥459	-78.4%	¥16M ($104K)
2024-10-04	SELL	negotiated	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	1.6M	¥459	-78.4%	¥16M ($104K)
2024-10-04	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	547.0K	¥459	+78.4%	¥251M ($1.6M)
2024-08-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	167.7K	¥436.33	+87.7%	¥29M ($184K)
2024-08-07	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	1.0M	¥436.33	+87.7%	¥436M ($2.8M)
2024-08-07	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	2.7M	¥436.33	-87.7%	¥273M ($1.8M)
2024-07-04	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	712.8K	¥508.67	-61.0%	¥36M ($232K)
2024-07-04	SELL	negotiated	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	1.6M	¥508.67	-61.0%	¥131M ($843K)
2024-07-04	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	547.0K	¥508.67	+61.0%	¥278M ($1.8M)
2024-04-05	SELL	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	101.8K	¥545.67	-50.1%	¥121M ($781K)
2024-04-05	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	3.3M	¥545.67	+50.1%	¥676M ($4.4M)
2024-04-05	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	1.0M	¥545.67	+50.1%	¥546M ($3.5M)
2024-03-25	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	2.1M	¥613	+33.6%	¥222M ($1.4M)
2024-03-25	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	323.2K	¥613	+33.6%	¥198M ($1.3M)
2024-03-25	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	1.0M	¥613	+33.6%	¥613M ($4.0M)
2023-11-30	BUY	unknown	青山理 Osamu Aoyama	strategic	1.5M	¥527	+55.4%	¥5M ($34K)
2023-11-30	SELL	unknown	有限会社青山物産 Aoyama Bussan, Ltd.	strategic	1.0M	¥527	-55.4%	¥433M ($2.8M)
2023-11-30	BUY	unknown	株式会社HK HK Co., Ltd.	strategic	3.8M	¥527	+55.4%	¥433M ($2.8M)
2023-10-20	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.7M	¥472.33	+73.4%	¥805M ($5.2M)
2023-10-20	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	1.0M	¥472.33	+73.4%	¥472M ($3.0M)
2023-06-15	BUY	unknown	有限会社青山物産 Aoyama Bussan, Ltd.	strategic	1.8M	¥420.33	+94.8%	¥764M ($4.9M)
2023-06-15	BUY	unknown	株式会社HK HK Co., Ltd.	strategic	3.0M	¥420.33	+94.8%	¥1.3B ($8.1M)
2023-06-15	BUY	unknown	青山理 Osamu Aoyama	strategic	1.5M	¥420.33	+94.8%	¥635M ($4.1M)
2023-06-15	BUY	unknown	株式会社HK HK Co., Ltd.	strategic	3.0M	¥420.33	+94.8%	¥1.3B ($8.1M)
2023-06-15	BUY	unknown	青山理 Osamu Aoyama	strategic	1.5M	¥420.33	+94.8%	¥635M ($4.1M)
2023-06-15	BUY	unknown	有限会社青山物産 Aoyama Bussan, Ltd.	strategic	1.8M	¥420.33	+94.8%	¥764M ($4.9M)
2023-05-02	BUY	unknown	株式会社HK HK Co., Ltd.	strategic	3.0M	¥305.33	+168.2%	¥916M ($5.9M)
2023-05-02	BUY	unknown	青山理 Osamu Aoyama	strategic	1.5M	¥305.33	+168.2%	¥462M ($3.0M)
2023-05-02	BUY	Market Buy	株式会社HK HK Co., Ltd.	strategic	3.0M	¥305.33	+168.2%	¥916M ($5.9M)
2023-05-02	BUY	Market Buy	青山理 Osamu Aoyama	strategic	1.5M	¥305.33	+168.2%	¥462M ($3.0M)
2023-05-02	BUY	Market Buy	有限会社青山物産 Aoyama Bussan, Ltd.	strategic	1.8M	¥305.33	+168.2%	¥3M ($20K)
2023-05-02	BUY	unknown	有限会社青山物産 Aoyama Bussan, Ltd.	strategic	1.8M	¥305.33	+168.2%	¥3M ($20K)
2022-11-25	BUY	Market Buy	株式会社HK HK Co., Ltd.	strategic	3.0M	¥344	+138.1%	¥92M ($593K)
2022-11-25	SELL	Market Buy	青山理 Osamu Aoyama	strategic	1.5M	¥344	-138.1%	¥113M ($727K)

Showing the 50 most recent of 94 filings.

Frequently asked questions

Who has been buying Aoyama Trading Co., Ltd. stock?: 14 distinct investors have filed 36 disclosed large-shareholding filings in Aoyama Trading Co., Ltd. (8219), most recently on 2025-11-21. 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 Aoyama Trading Co., Ltd. have?: Aoyama Trading Co., Ltd. has 36 buy-side and 29 sell-side disclosures on record, covering ¥4.0B ($25.6M) in total reported value, spanning 2021-04-21 to 2025-11-21.
Where does StockDrifts get Aoyama Trading Co., Ltd. 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 Aoyama Trading Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.