Who has been buying Nippon Chemical Industrial Co., Ltd. stock?

16 distinct investors have filed 23 disclosed large-shareholding filings in Nippon Chemical Industrial Co., Ltd. (4092), most recently on 2025-07-23. 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 Nippon Chemical Industrial Co., Ltd. have?

Nippon Chemical Industrial Co., Ltd. has 23 buy-side and 17 sell-side disclosures on record, covering ¥3.3B ($21.0M) in total reported value, spanning 2021-11-01 to 2025-07-23.

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.

Nippon Chemical Industrial Co., Ltd. 4092

Company

日本化学工業株式会社Nippon Chemical Industrial Co., Ltd.

Investors

Buys

Total Value

¥3.3B ($21.0M)

Avg Return

+46.63%

Last Filing

2025-07-23

Nippon Chemical Industrial Co., Ltd. (4092) has 23 disclosed large-shareholding filings and 17 disclosed disposals on record, filed by 16 distinct investors. Together those filings cover ¥3.3B ($21.0M) in reported transaction value. The earliest filing StockDrifts holds for Nippon Chemical Industrial Co., Ltd. is dated 2021-11-01; the most recent is 2025-07-23. Across these filings the average return since disclosure is +46.63%, 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
2026-08-20	BUY	Market Buy	Teacher Retirement System of Texas	passive	495.0K	¥5,440	+3.9%	¥2.7B ($17.4M)
2026-08-18	SELL	unknown	株式会社C&I Holdings	activist	441.0K	¥5,800	+2.6%	¥844M ($5.4M)
2026-08-18	BUY	unknown	株式会社シティインデックスイレブンス	activist	100	¥5,800	-	-
2026-08-17	SELL	unknown	株式会社C&I Holdings	activist	586.3K	¥5,560	-1.6%	¥739M ($4.8M)
2026-08-17	BUY	unknown	株式会社シティインデックスイレブンス	activist	100	¥5,560	-	-
2026-08-13	SELL	unknown	株式会社C&I Holdings	activist	718.9K	¥5,500	-2.7%	¥417M ($2.7M)
2026-08-13	BUY	unknown	株式会社シティインデックスイレブンス	activist	100	¥5,500	-	-
2026-08-13	SELL	unknown	株式会社シティインデックスフィフス	unknown	0	¥5,500	-2.7%	¥98M ($633K)
2026-08-12	BUY	unknown	株式会社C&I Holdings	activist	795.1K	¥5,180	-	-
2026-08-12	BUY	unknown	株式会社シティインデックスイレブンス	activist	100	¥5,180	-	-
2026-08-12	SELL	unknown	株式会社シティインデックスフィフス	activist	18.0K	¥5,180	-9.1%	¥587M ($3.8M)
2026-08-06	BUY	Market Buy	野村證券株式会社	other	15.2K	¥5,670	-0.3%	¥91M ($588K)
2026-08-06	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	18.3K	¥5,670	+0.3%	¥425M ($2.7M)
2026-08-06	SELL	unknown	野村アセットマネジメント株式会社	other	307.5K	¥5,670	+0.3%	¥551M ($3.6M)
2026-08-05	BUY	unknown	株式会社C&I Holdings	activist	795.1K	¥6,110	-	-
2026-08-05	BUY	unknown	株式会社シティインデックスイレブンス	activist	100	¥6,110	-	-
2026-08-05	BUY	unknown	株式会社シティインデックスフィフス	activist	130.9K	¥6,110	-	¥800M ($5.2M)
2026-08-04	BUY	unknown	日本化学工業取引先持株会理事長前田桃子 MAEDA MOMOKO	strategic	921.4K	¥5,780	-2.3%	¥5.3B ($34.4M)
2026-08-04	SELL	unknown	日本化学工業取引先持株会理事長増野繁 Masuno Shigeru	strategic	0	¥5,780	+2.3%	¥5.1B ($33.2M)
2026-07-29	BUY	Market Buy	株式会社C&I Holdings	activist	795.1K	¥5,380	+5.0%	¥514M ($3.3M)
2026-07-29	BUY	unknown	株式会社シティインデックスイレブンス	activist	100	¥5,380	-	¥538K ($3K)
2026-07-28	BUY	Market Buy	株式会社C&I Holdings	activist	699.6K	¥5,050	+11.9%	¥563M ($3.6M)
2026-07-24	BUY	Market Buy	株式会社C&I Holdings	activist	587.8K	¥5,180	+9.1%	¥462M ($3.0M)
2026-07-23	BUY	unknown	株式会社C&I Holdings	activist	499.0K	¥5,720	-1.2%	¥2.9B ($18.4M)
2026-07-23	SELL	unknown	株式会社STYLE BLEACH STYLE BLEACH Inc.	unknown	0	¥5,720	+1.2%	¥2.6B ($16.7M)
2026-07-16	BUY	unknown	株式会社STYLE BLEACH	activist	452.5K	¥5,140	+9.9%	¥2.3B ($15.0M)
2026-07-06	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	93.9K	¥4,350	-29.9%	¥318M ($2.1M)
2026-07-06	BUY	Market Buy	野村アセットマネジメント株式会社	other	404.7K	¥4,350	+29.9%	¥279M ($1.8M)
2026-07-06	BUY	unknown	野村證券株式会社	other	-502	¥4,350	-	-
2026-06-19	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	166.4K	¥5,550	+1.8%	¥924M ($6.0M)
2026-06-19	BUY	unknown	野村アセットマネジメント株式会社	other	340.6K	¥5,550	+1.8%	¥1.9B ($12.2M)
2026-06-19	BUY	unknown	野村證券株式会社	other	-1.1K	¥5,550	-	-
2026-06-04	BUY	unknown	野村證券株式会社	other	48.2K	¥5,190	-	¥250M ($1.6M)
2026-06-04	SELL	unknown	野村アセットマネジメント株式会社	other	350.8K	¥5,190	-8.9%	¥232M ($1.5M)
2026-06-04	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-70.4K	¥5,190	+14.3%	¥834M ($5.4M)
2026-05-21	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	90.0K	¥3,650	+54.8%	¥329M ($2.1M)
2026-05-21	BUY	unknown	野村アセットマネジメント株式会社	other	395.5K	¥3,650	+54.8%	¥1.4B ($9.3M)
2025-07-23	BUY	Market Buy	日本化学工業取引先持株会理事長増野繁 Masuno Shigeru	strategic	890.4K	¥2,099	+169.2%	¥217M ($1.4M)
2025-01-06	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	282.4K	¥2,388	+136.6%	¥6M ($41K)
2025-01-06	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	54.4K	¥2,388	-136.6%	¥190M ($1.2M)
2025-01-06	SELL	Market Buy	auカブコム証券株式会社 Mitsubishi UFJ Financial Group Inc.	other	9.2K	¥2,388	-136.6%	¥6M ($41K)
2025-01-06	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	8.8K	¥2,388	-136.6%	¥47M ($302K)
2024-07-19	BUY	unknown	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	281.0K	¥2,661	+112.3%	¥737M ($4.8M)
2024-07-19	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	112.5K	¥2,661	-112.3%	¥126M ($812K)
2024-07-16	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	28.3K	¥2,804	+101.5%	¥79M ($512K)
2024-07-16	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	278.9K	¥2,804	+101.5%	¥782M ($5.0M)
2024-07-16	BUY	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	133.9K	¥2,804	+101.5%	¥375M ($2.4M)
2024-07-16	BUY	Market Buy	auカブコム証券株式会社 Mitsubishi UFJ Financial Group Inc.	other	11.8K	¥2,804	+101.5%	¥33M ($213K)
2024-01-19	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	159.8K	¥1,895	+198.2%	¥105M ($676K)
2024-01-19	BUY	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	404.7K	¥1,895	+198.2%	¥74M ($480K)

Showing the 50 most recent of 86 filings.

Frequently asked questions

Who has been buying Nippon Chemical Industrial Co., Ltd. stock?: 16 distinct investors have filed 23 disclosed large-shareholding filings in Nippon Chemical Industrial Co., Ltd. (4092), most recently on 2025-07-23. 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 Nippon Chemical Industrial Co., Ltd. have?: Nippon Chemical Industrial Co., Ltd. has 23 buy-side and 17 sell-side disclosures on record, covering ¥3.3B ($21.0M) in total reported value, spanning 2021-11-01 to 2025-07-23.
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.