Who has been buying Nippon Sheet Glass Company, Limited stock?

9 distinct investors have filed 60 disclosed large-shareholding filings in Nippon Sheet Glass Company, Limited (5202), 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 Nippon Sheet Glass Company, Limited have?

Nippon Sheet Glass Company, Limited has 60 buy-side and 61 sell-side disclosures on record, covering ¥44.7B ($288.6M) in total reported value, spanning 2021-03-19 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.

Nippon Sheet Glass Company, Limited 5202

Company

日本板硝子株式会社Nippon Sheet Glass Company, Limited

Investors

Buys

Total Value

¥44.7B ($288.6M)

Avg Return

-9.31%

Last Filing

2026-05-11

Nippon Sheet Glass Company, Limited (5202) has 60 disclosed large-shareholding filings and 61 disclosed disposals on record, filed by 9 distinct investors. Together those filings cover ¥44.7B ($288.6M) in reported transaction value. The earliest filing StockDrifts holds for Nippon Sheet Glass Company, Limited is dated 2021-03-19; the most recent is 2026-05-11. Across these filings the average return since disclosure is -9.31%, 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
2026-09-25	SELL	Market Buy	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	passive	12.5M	¥495	+0.0%	¥16.7B ($107.5M)
2026-09-24	SELL	unknown	野村アセットマネジメント株式会社	unknown	0	¥495	+0.0%	¥6.5B ($42.0M)
2026-09-24	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	12.7M	¥495	+0.0%	¥605M ($3.9M)
2026-09-24	SELL	unknown	野村證券株式会社	other	3.1K	¥495	+0.0%	¥781M ($5.0M)
2026-09-04	BUY	unknown	野村アセットマネジメント株式会社	other	3.7M	¥491	+0.8%	¥1.8B ($11.6M)
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	3.9M	¥491	+0.8%	¥1.9B ($12.4M)
2026-09-04	BUY	unknown	野村證券株式会社	other	446.4K	¥491	+0.8%	¥219M ($1.4M)
2026-09-03	BUY	private	Lumina Japan Acquisition株式会社 Lumina Japan Acquisition Co., Ltd.	corporate	366.7M	¥490	+1.0%	¥179.7B ($1.2B)
2026-07-06	BUY	private	有限会社DBJコーポレート・メザニン・パートナーズ DBJ Corporate Mezzanine Partners Co.,Ltd.	passive	25.3M	¥484	-	-
2026-06-19	BUY	unknown	野村證券株式会社	other	102	¥475	-	-
2026-06-19	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	5.4M	¥475	-4.2%	¥156M ($1.0M)
2026-06-19	SELL	unknown	野村アセットマネジメント株式会社	other	817.0K	¥475	-4.2%	¥784M ($5.1M)
2026-05-11	SELL	unknown	野村證券株式会社	other	4.9K	¥484	-2.3%	¥7M ($44K)
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	5.7M	¥484	-2.3%	¥7M ($44K)
2026-05-11	SELL	unknown	野村アセットマネジメント株式会社	other	2.5M	¥484	-2.3%	¥69M ($444K)
2026-04-06	BUY	unknown	野村證券株式会社	other	9.6K	¥476	+4.0%	¥5M ($30K)
2026-04-06	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	4.2M	¥476	+4.0%	¥2.0B ($12.8M)
2026-04-06	BUY	unknown	野村アセットマネジメント株式会社	other	1.9M	¥476	+4.0%	¥907M ($5.9M)
2026-03-31	BUY	private	ジャパン・インダストリアル・ソリューションズ株式会社 Japan Industrial Solutions Co., Ltd.	passive	12.9M	¥478	+3.6%	¥6.2B ($39.8M)
2026-03-27	BUY	private	有限会社DBJコーポレート・メザニン・パートナーズ DBJ Corporate Mezzanine Partners Co.,Ltd.	passive	25.3M	¥485	+2.1%	¥12.3B ($79.3M)
2026-02-06	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	2.9M	¥632	+21.7%	¥3.4B ($22.2M)
2026-01-22	BUY	unknown	みずほ証券株式会社	other	6.2M	¥654	-24.3%	¥4.1B ($26.3M)
2026-01-22	BUY	unknown	アセットマネジメントOne株式会社	other	2.1M	¥654	-24.3%	¥1.4B ($9.0M)
2026-01-09	SELL	unknown	みずほ証券株式会社	other	881.0K	¥638	+22.4%	¥2.4B ($15.5M)
2026-01-09	BUY	unknown	アセットマネジメントOne株式会社	other	2.1M	¥638	-22.4%	¥6M ($41K)
2025-12-22	BUY	unknown	野村證券株式会社	other	15.1K	¥496	-0.2%	¥10M ($64K)
2025-12-22	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	301.1K	¥496	+0.2%	¥761M ($4.9M)
2025-12-22	BUY	unknown	野村アセットマネジメント株式会社	other	3.5M	¥496	-0.2%	¥5M ($32K)
2025-12-05	SELL	unknown	みずほ証券株式会社	other	4.6M	¥469	-5.5%	¥598M ($3.9M)
2025-12-05	SELL	unknown	アセットマネジメントOne株式会社	other	2.1M	¥469	-5.5%	¥19M ($121K)
2025-12-04	BUY	unknown	野村證券株式会社	other	1.9K	¥466	+6.2%	¥865K ($6K)
2025-12-04	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	1.8M	¥466	+6.2%	¥852M ($5.5M)
2025-12-04	BUY	unknown	野村アセットマネジメント株式会社	other	3.5M	¥466	+6.2%	¥1.6B ($10.4M)
2025-11-10	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	5.9M	¥436	-13.5%	¥395M ($2.5M)
2025-11-10	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.2M	¥436	+13.5%	¥17M ($112K)
2025-10-22	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	6.8M	¥590	-16.1%	¥4.0B ($26.0M)
2025-10-22	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.1M	¥590	-16.1%	¥1.2B ($8.0M)
2025-10-07	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	1.8M	¥543	+8.8%	¥687M ($4.4M)
2025-10-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.1M	¥543	-8.8%	¥5M ($34K)
2025-09-22	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	3.0M	¥509	-2.8%	¥1.5B ($10.0M)
2025-09-22	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.1M	¥509	-2.8%	¥1.1B ($6.8M)
2025-07-07	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	937.6K	¥481	-2.9%	¥749M ($4.8M)
2025-07-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.1M	¥481	-2.9%	¥9M ($57K)
2025-06-20	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	2.5M	¥390	+26.9%	¥972M ($6.3M)
2025-06-20	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.1M	¥390	+26.9%	¥827M ($5.3M)
2024-06-05	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	909.4K	¥456	-	-
2024-06-05	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	95.6K	¥456	-8.6%	¥359M ($2.3M)
2024-06-05	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	2.7M	¥456	-8.6%	¥150M ($968K)
2024-05-08	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	906.0K	¥517	+4.3%	¥695M ($4.5M)
2024-05-08	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	875.0K	¥517	-4.3%	¥539M ($3.5M)

Showing the 50 most recent of 143 filings.

Frequently asked questions

Who has been buying Nippon Sheet Glass Company, Limited stock?: 9 distinct investors have filed 60 disclosed large-shareholding filings in Nippon Sheet Glass Company, Limited (5202), 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 Nippon Sheet Glass Company, Limited have?: Nippon Sheet Glass Company, Limited has 60 buy-side and 61 sell-side disclosures on record, covering ¥44.7B ($288.6M) in total reported value, spanning 2021-03-19 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.