Who has been buying Nichias Corporation stock?

13 distinct investors have filed 28 disclosed large-shareholding filings in Nichias Corporation (5393), most recently on 2026-05-12. 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 Nichias Corporation have?

Nichias Corporation has 28 buy-side and 28 sell-side disclosures on record, covering ¥53.6B ($345.8M) in total reported value, spanning 2021-08-27 to 2026-05-12.

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.

Nichias Corporation 5393

Company

ニチアス株式会社Nichias Corporation

Investors

Buys

Total Value

¥53.6B ($345.8M)

Avg Return

+73.97%

Last Filing

2026-05-12

Nichias Corporation (5393) has 28 disclosed large-shareholding filings and 28 disclosed disposals on record, filed by 13 distinct investors. Together those filings cover ¥53.6B ($345.8M) in reported transaction value. The earliest filing StockDrifts holds for Nichias Corporation is dated 2021-08-27; the most recent is 2026-05-12. Across these filings the average return since disclosure is +73.97%, 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
2026-07-07	SELL	Market Buy	キャピタル・リサーチ・アンド・マネージメント・カンパニー Capital Research and Management Company	passive	12.3M	¥3,787	+13.3%	¥6.2B ($40.1M)
2026-07-07	SELL	Market Buy	キャピタル・インターナショナル・インク Capital International, Inc.	passive	342.6K	¥3,787	+13.3%	¥940M ($6.1M)
2026-07-07	SELL	Market Buy	キャピタル・インターナショナル・エス・エイ・アール・エル Capital International Sarl	passive	262.5K	¥3,787	+13.3%	¥217M ($1.4M)
2026-07-07	SELL	Market Buy	キャピタル・インターナショナル株式会社	passive	526.9K	¥3,787	+13.3%	¥434M ($2.8M)
2026-05-12	SELL	Market Buy	キャピタル・インターナショナル・エス・エイ・アール・エル Capital International Sarl	passive	318.2K	¥3,780	+13.2%	¥361M ($2.3M)
2026-05-12	SELL	Market Buy	キャピタル・インターナショナル・インク Capital International, Inc.	passive	593.4K	¥3,780	+13.2%	¥217M ($1.4M)
2026-05-12	SELL	Market Buy	キャピタル・リサーチ・アンド・マネージメント・カンパニー Capital Research and Management Company	passive	13.9M	¥3,780	+13.2%	¥3.5B ($22.4M)
2026-05-12	SELL	Market Buy	キャピタル・インターナショナル株式会社	passive	643.2K	¥3,780	+13.2%	¥289M ($1.9M)
2026-04-07	BUY	unknown	株式会社みずほ銀行	strategic	3.8M	¥2,913	-	-
2026-04-07	BUY	unknown	アセットマネジメントOne株式会社	other	12.3M	¥2,913	+12.7%	¥5.9B ($38.0M)
2026-03-23	BUY	Market Buy	キャピタル・リサーチ・アンド・マネージメント・カンパニー Capital Research and Management Company	passive	5.0M	¥2,752	+19.3%	¥1.7B ($10.7M)
2026-03-23	SELL	Market Buy	キャピタル・インターナショナル・インク(Capital International	passive	217.4K	¥2,752	-19.3%	¥561M ($3.6M)
2026-03-23	SELL	Market Buy	キャピタル・インターナショナル・エス・エイ・アール・エル Capital International Sarl	passive	138.0K	¥2,752	-19.3%	¥333M ($2.1M)
2026-03-23	SELL	Market Buy	キャピタル・インターナショナル株式会社	passive	243.7K	¥2,752	-19.3%	¥1.2B ($7.9M)
2026-03-06	BUY	Market Buy	株式会社みずほ銀行	strategic	1.3M	¥2,984.67	+10.0%	¥228M ($1.5M)
2026-03-06	BUY	Market Buy	アセットマネジメントOne株式会社	other	3.4M	¥2,984.67	+10.0%	¥3.2B ($20.3M)
2025-11-07	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	934.5K	¥1,950	+68.3%	¥1.8B ($11.8M)
2025-11-07	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	1.4M	¥1,950	+68.3%	¥2.8B ($17.9M)
2025-11-07	BUY	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	1.1M	¥1,950	+68.3%	¥2.2B ($14.5M)
2025-09-19	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	934.5K	¥1,948.67	-68.4%	¥608M ($3.9M)
2025-09-19	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	1.4M	¥1,948.67	-68.4%	¥13M ($85K)
2025-09-19	BUY	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	1.0M	¥1,948.67	+68.4%	¥26M ($171K)
2025-06-06	SELL	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	1.3M	¥1,708.33	-92.1%	¥707M ($4.6M)
2025-06-06	SELL	unknown	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	1.9M	¥1,708.33	-92.1%	¥1.1B ($7.2M)
2025-04-07	BUY	Market Buy	キャピタル・リサーチ・アンド・マネージメント・カンパニー Capital Research and Management Company	passive	4.6M	¥1,390	+136.1%	¥641M ($4.1M)
2025-04-07	BUY	Market Buy	キャピタル・インターナショナル・インク(Capital International Capital International, Inc.	passive	444.3K	¥1,390	+136.1%	¥320M ($2.1M)
2025-04-07	BUY	Market Buy	キャピタル・インターナショナル・エス・エイ・アール・エル Capital International Sarl	passive	275.0K	¥1,390	+136.1%	¥189M ($1.2M)
2025-04-07	BUY	Market Buy	キャピタル・インターナショナル株式会社 Capital International Co., Ltd.	passive	731.4K	¥1,390	+136.1%	¥311M ($2.0M)
2025-02-21	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	1.3M	¥1,505.33	-118.0%	¥633M ($4.1M)
2025-02-21	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.5M	¥1,505.33	-118.0%	¥919M ($5.9M)
2025-01-10	BUY	Market Buy	キャピタル・リサーチ・アンド・マネージメント・カンパニー Capital Research and Management Company	passive	4.2M	¥1,847.33	+77.7%	¥977M ($6.3M)
2025-01-10	BUY	Market Buy	キャピタル・インターナショナル・インク(Capital International Capital International, Inc.	passive	213.8K	¥1,847.33	+77.7%	¥125M ($808K)
2025-01-10	BUY	Market Buy	キャピタル・インターナショナル・エス・エイ・アール・エル Capital International Sarl	passive	143.1K	¥1,847.33	+77.7%	¥75M ($485K)
2025-01-10	BUY	Market Buy	キャピタル・インターナショナル株式会社 Capital International Co., Ltd.	passive	510.8K	¥1,847.33	+77.7%	¥288M ($1.9M)
2024-12-06	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	¥1,944	-68.8%	¥593M ($3.8M)
2024-12-06	SELL	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	1.7M	¥1,944	-68.8%	¥817M ($5.3M)
2024-11-22	BUY	Market Buy	キャピタル・リサーチ・アンド・マネージメント・カンパニー Capital Research and Management Company	passive	3.6M	¥2,001.33	+64.0%	¥1.3B ($8.1M)
2024-11-22	BUY	Market Buy	キャピタル・インターナショナル・インク(Capital International Capital International, Inc.	passive	148.9K	¥2,001.33	+64.0%	¥81M ($525K)
2024-11-22	BUY	Market Buy	キャピタル・インターナショナル・エス・エイ・アール・エル Capital International Sarl	passive	98.9K	¥2,001.33	+64.0%	¥54M ($350K)
2024-11-22	BUY	Market Buy	キャピタル・インターナショナル株式会社 Capital International Co., Ltd.	passive	351.8K	¥2,001.33	+64.0%	¥176M ($1.1M)
2024-11-11	SELL	unknown	ニチアス持株会理事長小形明彦 Akihiko Ogata	strategic	0	¥2,006.67	-63.5%	¥11.3B ($73.2M)
2024-11-11	BUY	acquisition	ニチアス持株会理事長村松眞之 Masayuki Muramatsu	strategic	5.6M	¥2,006.67	+63.5%	¥11.3B ($72.9M)
2024-11-11	BUY	unknown	ニチアス持株会理事長小形明彦 Akihiko Ogata	strategic	0	¥2,006.67	-	¥11.3B ($73.2M)
2024-10-07	BUY	Market Buy	キャピタル・リサーチ・アンド・マネージメント・カンパニー Capital Research and Management Company	passive	3.0M	¥1,916.67	+71.2%	¥5.8B ($37.3M)
2024-10-07	BUY	Market Buy	キャピタル・インターナショナル株式会社 Capital International Co., Ltd.	passive	263.2K	¥1,916.67	+71.2%	¥504M ($3.3M)
2024-10-07	BUY	Market Buy	キャピタル・インターナショナル・インク(Capital International Capital International, Inc.	passive	111.0K	¥1,916.67	+71.2%	¥213M ($1.4M)
2024-10-07	BUY	Market Buy	キャピタル・インターナショナル・エス・エイ・アール・エル Capital International Sarl	passive	74.2K	¥1,916.67	+71.2%	¥142M ($918K)
2024-05-21	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	1.2M	¥1,491.67	-	-
2024-05-21	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	1.4M	¥1,491.67	-120.0%	¥61M ($392K)
2024-05-21	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	1.0M	¥1,491.67	-120.0%	¥1.0B ($6.6M)

Showing the 50 most recent of 65 filings.

Frequently asked questions

Who has been buying Nichias Corporation stock?: 13 distinct investors have filed 28 disclosed large-shareholding filings in Nichias Corporation (5393), most recently on 2026-05-12. 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 Nichias Corporation have?: Nichias Corporation has 28 buy-side and 28 sell-side disclosures on record, covering ¥53.6B ($345.8M) in total reported value, spanning 2021-08-27 to 2026-05-12.
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.