Who has been buying Mitsubishi Gas Chemical Company, Inc. stock?

16 distinct investors have filed 33 disclosed large-shareholding filings in Mitsubishi Gas Chemical Company, Inc. (4182), most recently on 2026-05-11. 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 Mitsubishi Gas Chemical Company, Inc. have?

Mitsubishi Gas Chemical Company, Inc. has 33 buy-side and 30 sell-side disclosures on record, covering ¥115.8B ($747.1M) in total reported value, spanning 2021-03-29 to 2026-05-11.

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.

Mitsubishi Gas Chemical Company, Inc. 4182

Company

三菱瓦斯化学株式会社Mitsubishi Gas Chemical Company, Inc.

Investors

Buys

Total Value

¥115.8B ($747.1M)

Avg Return

+79.98%

Last Filing

2026-05-11

Mitsubishi Gas Chemical Company, Inc. (4182) has 33 disclosed large-shareholding filings and 30 disclosed disposals on record, filed by 16 distinct investors. Together those filings cover ¥115.8B ($747.1M) in reported transaction value. The earliest filing StockDrifts holds for Mitsubishi Gas Chemical Company, Inc. is dated 2021-03-29; the most recent is 2026-05-11. Across these filings the average return since disclosure is +79.98%, 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
2026-09-04	SELL	unknown	アモーヴァ・アセットマネジメント株式会社	other	4.9M	¥3,847	-1.5%	¥5.0B ($32.0M)
2026-09-04	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社	other	4.3M	¥3,847	-1.5%	¥3.8B ($24.7M)
2026-09-04	BUY	negotiated	三井住友信託銀行株式会社	strategic	857.0K	¥3,847	-	-
2026-09-04	SELL	unknown	野村アセットマネジメント株式会社	other	11.7M	¥3,847	-1.5%	¥7.7B ($49.4M)
2026-09-04	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	630.7K	¥3,847	-	¥2.4B ($15.7M)
2026-09-04	SELL	unknown	野村證券株式会社	other	313.8K	¥3,847	-1.5%	¥3.3B ($21.0M)
2026-07-22	BUY	Market Buy	野村證券株式会社	other	1.2M	¥4,533	-13.8%	¥96M ($619K)
2026-07-22	BUY	Market Buy	野村アセットマネジメント株式会社	other	13.7M	¥4,533	-13.8%	¥9.6B ($61.9M)
2026-05-11	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	147.5K	¥4,737	+17.5%	¥1.5B ($9.7M)
2026-05-11	SELL	unknown	野村證券株式会社	other	1.1M	¥4,737	+17.5%	¥6.1B ($39.5M)
2026-05-11	SELL	unknown	野村アセットマネジメント株式会社	other	11.6M	¥4,737	+17.5%	¥2.3B ($14.9M)
2026-05-08	BUY	negotiated	株式会社三菱UFJ銀行	strategic	2.7M	¥4,582	-	-
2026-05-08	SELL	Market Buy	三菱UFJ信託銀行株式会社	passive	4.8M	¥4,582	+14.8%	¥388M ($2.5M)
2026-05-08	BUY	Market Buy	三菱UFJアセットマネジメント株式会社	passive	1.2M	¥4,582	-14.8%	¥97M ($626K)
2026-05-08	SELL	unknown	三菱UFJモルガン・スタンレー証券株式会社	other	112.0K	¥4,582	+14.8%	¥11.3B ($73.2M)
2026-04-06	BUY	unknown	野村證券株式会社	other	2.4M	¥3,920	-	¥9.5B ($61.3M)
2026-04-06	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	475.0K	¥3,920	+0.4%	¥415M ($2.7M)
2026-04-06	SELL	unknown	野村アセットマネジメント株式会社	other	12.1M	¥3,920	+0.4%	¥747M ($4.8M)
2026-03-30	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社	other	2.6M	¥3,612	+8.1%	¥4.5B ($29.1M)
2026-03-30	BUY	negotiated	株式会社三菱UFJ銀行	strategic	2.7M	¥3,612	-	-
2026-03-30	SELL	negotiated	三菱UFJ信託銀行株式会社	passive	4.9M	¥3,612	-8.1%	¥2.6B ($16.8M)
2026-03-30	SELL	negotiated	三菱UFJアセットマネジメント株式会社	passive	1.2M	¥3,612	-8.1%	¥1.5B ($9.4M)
2025-10-20	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	5.6M	¥2,863	+36.4%	¥606M ($3.9M)
2025-10-20	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.6M	¥2,863	-	-
2025-10-20	SELL	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	1.3M	¥2,863	-36.4%	¥4.1B ($26.6M)
2025-10-20	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	2.7M	¥2,863	-	-
2025-10-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	1.8M	¥2,784	+40.3%	¥236M ($1.5M)
2025-10-07	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	397.2K	¥2,784	-	¥1.1B ($7.1M)
2025-10-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	6.4M	¥2,784	-40.3%	¥7.0B ($45.2M)
2025-09-30	SELL	Market Buy	MUFGセキュリティーズEMEA MUFG Securities EMEA plc	other	141.0K	¥2,642.5	-47.8%	¥2.2B ($14.1M)
2025-09-30	SELL	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	5.4M	¥2,642.5	-47.8%	¥1.6B ($10.5M)
2025-09-30	SELL	Market Buy	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.6M	¥2,642.5	-47.8%	¥392M ($2.5M)
2025-09-30	BUY	Market Buy	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	2.8M	¥2,642.5	+47.8%	¥6.7B ($43.3M)
2025-09-30	BUY	Market Buy	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	2.7M	¥2,642.5	+47.8%	¥224M ($1.4M)
2025-09-19	SELL	negotiated	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	6.2M	¥2,751	-42.0%	¥4.0B ($25.9M)
2025-09-19	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	857.0K	¥2,751	+42.0%	¥5.8B ($37.6M)
2025-09-19	BUY	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	5.3M	¥2,751	+42.0%	¥3.0B ($19.2M)
2025-05-20	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	572.6K	¥2,081.5	-	¥1.2B ($7.7M)
2025-05-20	BUY	Market Buy	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	12.3M	¥2,081.5	+87.7%	¥3.3B ($21.0M)
2025-02-20	BUY	Market Buy	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	857.0K	¥2,349.5	-	-
2025-02-20	SELL	Market Buy	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	4.3M	¥2,349.5	-66.3%	¥1.0B ($6.6M)
2025-02-20	BUY	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	7.9M	¥2,349.5	+66.3%	¥5.1B ($32.9M)
2024-07-29	SELL	Market Buy	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	247.3K	¥2,844.5	-37.3%	¥1.9B ($12.4M)
2024-07-29	BUY	Market Buy	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	2.7M	¥2,844.5	+37.3%	¥124M ($797K)
2024-07-29	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	6.2M	¥2,844.5	+37.3%	¥1.4B ($9.2M)
2024-07-29	BUY	Market Buy	MUFGセキュリティーズEMEA MUFG Securities EMEA plc	other	1.0M	¥2,844.5	-	¥2.8B ($18.4M)
2024-07-29	SELL	Market Buy	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.8M	¥2,844.5	-37.3%	¥1.2B ($7.6M)
2024-07-04	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	857.0K	¥3,061	+27.6%	¥2.6B ($16.9M)
2024-07-04	BUY	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	4.8M	¥3,061	+27.6%	¥14.7B ($94.6M)
2024-07-04	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	5.7M	¥3,061	+27.6%	¥17.5B ($112.6M)

Showing the 50 most recent of 87 filings.

Frequently asked questions

Who has been buying Mitsubishi Gas Chemical Company, Inc. stock?: 16 distinct investors have filed 33 disclosed large-shareholding filings in Mitsubishi Gas Chemical Company, Inc. (4182), most recently on 2026-05-11. 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 Mitsubishi Gas Chemical Company, Inc. have?: Mitsubishi Gas Chemical Company, Inc. has 33 buy-side and 30 sell-side disclosures on record, covering ¥115.8B ($747.1M) in total reported value, spanning 2021-03-29 to 2026-05-11.
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.