Who has been buying E-Guardian Inc. stock?

14 distinct investors have filed 55 disclosed large-shareholding filings in E-Guardian Inc. (6050), most recently on 2025-11-19. 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 E-Guardian Inc. have?

E-Guardian Inc. has 55 buy-side and 32 sell-side disclosures on record, covering ¥22.4B ($144.8M) in total reported value, spanning 2021-05-17 to 2025-11-19.

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.

E-Guardian Inc. 6050

Company

イー・ガーディアン株式会社E-Guardian Inc.

Investors

Buys

Total Value

¥22.4B ($144.8M)

Avg Return

-33.23%

Last Filing

2025-11-19

E-Guardian Inc. (6050) has 55 disclosed large-shareholding filings and 32 disclosed disposals on record, filed by 14 distinct investors. Together those filings cover ¥22.4B ($144.8M) in reported transaction value. The earliest filing StockDrifts holds for E-Guardian Inc. is dated 2021-05-17; the most recent is 2025-11-19. Across these filings the average return since disclosure is -33.23%, 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
2025-11-19	BUY	Market Buy	株式会社チェンジホールディングス CHANGE Holdings,Inc.	activist	6.2M	¥1,632	+4.3%	¥538M ($3.5M)
2025-11-19	SELL	unknown	高谷康久 YASUHISA TAKATANI	other	332.0K	¥1,632	-4.3%	¥697M ($4.5M)
2025-11-12	SELL	unknown	高谷康久 YASUHISA TAKATANI	other	662.0K	¥1,704	+0.1%	¥9M ($57K)
2023-10-20	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	91.4K	¥1,692	+0.7%	¥152M ($981K)
2023-10-20	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	55.8K	¥1,692	+0.7%	¥87M ($562K)
2023-10-19	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	214.0K	¥1,725	+1.3%	¥60M ($385K)
2023-10-19	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	146.7K	¥1,725	+1.3%	¥428M ($2.8M)
2023-10-19	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	179.6K	¥1,725	+1.3%	¥194M ($1.2M)
2023-10-11	BUY	private	株式会社チェンジホールディングス CHANGE Holdings,Inc.	activist	5.8M	¥1,806	-5.7%	¥1.6B ($10.4M)
2023-10-06	SELL	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	254.1K	¥1,842	+7.5%	¥242M ($1.6M)
2023-10-06	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	216.0K	¥1,842	-7.5%	¥2M ($12K)
2023-10-06	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	344.9K	¥1,842	-7.5%	¥535M ($3.5M)
2023-10-04	SELL	unknown	JPモルガン証券株式会社 JPMorgan Securities Japan Co., Ltd.	other	111.4K	¥1,935	+12.0%	¥64M ($416K)
2023-10-04	BUY	unknown	ジェー・ピー・モルガン・セキュリティーズ・ピーエルシー J.P. Morgan Securities plc	other	222.7K	¥1,935	-12.0%	¥424M ($2.7M)
2023-10-03	BUY	private	株式会社チェンジホールディングス CHANGE Holdings,Inc.	activist	4.3M	¥2,064	-17.5%	¥8.9B ($57.5M)
2023-09-25	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	209.5K	¥2,695	+36.8%	¥272M ($1.8M)
2023-09-25	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	168.3K	¥2,695	+36.8%	¥222M ($1.4M)
2023-09-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	385.0K	¥2,691	-36.7%	¥280M ($1.8M)
2023-09-22	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	215.1K	¥2,691	-	-
2023-09-22	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	53.7K	¥2,691	+36.7%	¥67M ($434K)
2023-09-07	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	250.8K	¥2,624	+35.1%	¥390M ($2.5M)
2023-09-07	SELL	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	310.1K	¥2,624	+35.1%	¥90M ($581K)
2023-09-05	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	280.7K	¥2,631	+35.3%	¥427M ($2.8M)
2023-09-05	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	215.8K	¥2,631	-	-
2023-09-05	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	79.0K	¥2,631	+35.3%	¥57M ($371K)
2023-08-22	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	399.1K	¥2,636	-35.4%	¥1.1B ($6.8M)
2023-08-22	SELL	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	178.2K	¥2,636	+35.4%	¥387M ($2.5M)
2023-08-22	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	344.4K	¥2,636	-35.4%	¥908M ($5.9M)
2023-08-22	BUY	Market Buy	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	402.7K	¥2,636	-35.4%	¥195M ($1.3M)
2023-08-18	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	101.1K	¥2,647	-35.7%	¥268M ($1.7M)
2023-08-18	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	215.7K	¥2,647	-35.7%	¥571M ($3.7M)
2023-08-18	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	443.5K	¥2,647	-35.7%	¥1.2B ($7.6M)
2023-08-14	BUY	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	324.8K	¥2,643	-35.6%	¥834M ($5.4M)
2023-08-14	BUY	Market Buy	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	328.8K	¥2,643	-35.6%	¥212M ($1.4M)
2023-08-10	SELL	unknown	オービス・インベストメント・マネジメント・リミテッド(Orbis Investment Management Limited) Orbis Investment Management Limited	other	498.8K	¥2,621	+35.0%	¥2.9B ($18.6M)
2023-08-10	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	249.2K	¥2,621	-	¥653M ($4.2M)
2023-08-10	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	893.2K	¥2,621	-35.0%	¥104M ($669K)
2023-08-09	SELL	unknown	カバウター・マネージメント・エルエルシー (Kabouter Management, LLC) Kabouter Management, LLC	unknown	0	¥2,609	+34.7%	¥1.5B ($9.8M)
2023-06-07	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	1.4K	¥2,007	-	-
2023-06-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	14.3K	¥2,007	-	¥29M ($185K)
2023-06-07	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	444.5K	¥2,007	-15.2%	¥880M ($5.7M)
2023-06-07	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	2.6K	¥2,007	-15.2%	¥219M ($1.4M)
2023-06-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	853.4K	¥2,007	-15.2%	¥1.7B ($10.9M)
2023-06-07	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	65.3K	¥2,007	+15.2%	¥10M ($67K)
2023-06-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	348.0K	¥2,007	-15.2%	¥685M ($4.4M)
2023-05-10	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	882	¥2,287	+25.5%	¥238M ($1.5M)
2023-05-10	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	70.3K	¥2,287	-25.5%	¥102M ($660K)
2023-05-10	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	618.2K	¥2,287	+25.5%	¥52M ($338K)
2023-03-20	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	1.9K	¥2,240	-	¥4M ($28K)
2023-03-20	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	641.5K	¥2,240	-24.0%	¥1.4B ($9.1M)

Showing the 50 most recent of 94 filings.

Frequently asked questions

Who has been buying E-Guardian Inc. stock?: 14 distinct investors have filed 55 disclosed large-shareholding filings in E-Guardian Inc. (6050), most recently on 2025-11-19. 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 E-Guardian Inc. have?: E-Guardian Inc. has 55 buy-side and 32 sell-side disclosures on record, covering ¥22.4B ($144.8M) in total reported value, spanning 2021-05-17 to 2025-11-19.
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.