Who has been buying eGuarantee, Inc. stock?

15 distinct investors have filed 32 disclosed large-shareholding filings in eGuarantee, Inc. (8771), most recently on 2026-05-13. 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 eGuarantee, Inc. have?

eGuarantee, Inc. has 32 buy-side and 15 sell-side disclosures on record, covering ¥64.9B ($418.5M) in total reported value, spanning 2021-04-07 to 2026-05-13.

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.

eGuarantee, Inc. 8771

Company

イー・ギャランティ株式会社eGuarantee, Inc.

Investors

Buys

Total Value

¥64.9B ($418.5M)

Avg Return

-5.15%

Last Filing

2026-05-13

eGuarantee, Inc. (8771) has 32 disclosed large-shareholding filings and 15 disclosed disposals on record, filed by 15 distinct investors. Together those filings cover ¥64.9B ($418.5M) in reported transaction value. The earliest filing StockDrifts holds for eGuarantee, Inc. is dated 2021-04-07; the most recent is 2026-05-13. Across these filings the average return since disclosure is -5.15%, 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
2026-05-13	BUY	Market Buy	ありあけキャピタル株式会社 Ariake Capital Inc.	activist	4.7M	¥1,665	+7.3%	¥423M ($2.7M)
2026-03-06	BUY	Market Buy	トライヴィスタ・キャピタル株式会社 TriVista Capital Inc.	passive	3.5M	¥1,791	-0.3%	¥902M ($5.8M)
2025-12-04	BUY	Market Buy	ありあけキャピタル株式会社 Ariake Capital Inc.	activist	4.7M	¥1,744	+2.4%	¥259M ($1.7M)
2025-11-07	BUY	Market Buy	ありあけキャピタル株式会社 Ariake Capital Inc.	activist	4.5M	¥1,668	+7.1%	¥887M ($5.7M)
2025-10-21	BUY	Market Buy	ありあけキャピタル株式会社 Ariake Capital Inc.	activist	4.0M	¥1,568	+13.9%	¥819M ($5.3M)
2025-09-24	BUY	Market Buy	ありあけキャピタル株式会社 Ariake Capital Inc.	activist	3.5M	¥1,713	+4.3%	¥5.9B ($38.3M)
2025-08-22	BUY	Market Buy	トライヴィスタ・キャピタル株式会社 TriVista Capital Inc.	passive	3.0M	¥1,486	+20.2%	¥798M ($5.1M)
2025-06-20	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	7.2K	¥1,475	-21.1%	¥7.1B ($45.6M)
2025-06-20	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	2.3M	¥1,475	+21.1%	¥3.3B ($21.3M)
2025-03-27	SELL	unknown	ニュートン・インベストメント・マネジメント・ジャパン株式会社 Newton Investment Management Japan Ltd	other	1.9M	¥1,828	+2.3%	¥988M ($6.4M)
2025-03-25	SELL	Market Buy	ノルウェー銀行(Norges Bank) Norges Bank	passive	2.0M	¥1,782	-0.2%	¥681M ($4.4M)
2025-03-24	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	59.2K	¥1,818	-	¥108M ($695K)
2025-03-24	BUY	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	¥1,818	-1.8%	¥4.9B ($31.3M)
2025-02-27	SELL	unknown	ニュートン・インベストメント・マネジメント・ジャパン株式会社 Newton Investment Management Japan Ltd	other	2.4M	¥1,780	-0.3%	¥1.0B ($6.6M)
2025-01-08	BUY	Market Buy	トライヴィスタ・キャピタル株式会社 TriVista Capital Inc.	passive	2.4M	¥1,754	+1.8%	¥4.3B ($27.5M)
2024-12-20	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	41.1K	¥1,749	-2.1%	¥5.0B ($32.3M)
2024-12-20	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.3M	¥1,749	+2.1%	¥5.7B ($36.5M)
2024-07-25	BUY	Market Buy	ニュートン・インベストメント・マネジメント・ジャパン株式会社 Newton Investment Management Japan Ltd	other	3.0M	¥1,415	+26.2%	¥736M ($4.7M)
2024-06-20	BUY	Market Buy	ノルウェー銀行(Norges Bank) Norges Bank	passive	2.4M	¥1,372	+30.2%	¥3.3B ($21.2M)
2024-06-07	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	53.4K	¥1,285	-39.0%	¥110M ($712K)
2024-06-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.5M	¥1,285	+39.0%	¥1.9B ($12.1M)
2024-04-22	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	72.6K	¥1,730	-3.2%	¥157M ($1.0M)
2024-04-22	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.7M	¥1,730	+3.2%	¥6.4B ($41.1M)
2024-02-06	SELL	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	2.3M	¥1,830	+2.4%	¥931M ($6.0M)
2024-01-11	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	135.8K	¥2,005	-10.9%	¥272M ($1.8M)
2024-01-11	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	¥2,005	-10.9%	¥4.5B ($29.1M)
2023-11-30	BUY	unknown	ニュートン・インベストメント・マネジメント・ジャパン株式会社 Newton Investment Management Japan Ltd	other	2.5M	¥1,942	-8.0%	¥4.8B ($30.9M)
2023-09-25	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	4.2M	¥1,902	-6.1%	¥878M ($5.7M)
2023-09-25	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	162.8K	¥1,902	-6.1%	¥118M ($759K)
2023-07-24	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.9M	¥2,074	+13.9%	¥1.2B ($7.8M)
2023-07-06	BUY	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	2.8M	¥1,893	-5.7%	¥908M ($5.9M)
2023-07-06	SELL	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	0	¥1,893	+5.7%	¥117M ($754K)
2023-06-07	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	99.1K	¥1,943	-	¥193M ($1.2M)
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	3.7M	¥1,943	-8.1%	¥7.1B ($46.0M)
2023-03-23	BUY	Market Buy	江藤公則 ETO MASANORI	passive	6.0M	¥2,201	-18.9%	¥2.4B ($15.5M)
2023-01-26	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	2.4K	¥2,399	+25.6%	¥3.4B ($21.9M)
2023-01-26	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	29.5K	¥2,399	-25.6%	¥6.5B ($42.1M)
2023-01-26	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	4.4M	¥2,399	-25.6%	¥10.5B ($67.9M)
2022-11-08	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	¥2,391	+25.3%	¥1.2B ($7.5M)
2022-03-22	BUY	unknown	ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co	other	1.9M	¥1,842	-3.0%	¥3.5B ($22.4M)
2022-03-22	BUY	unknown	ベイリー・ギフォード・オーバーシーズ・リミテッド Baillie Gifford Overseas Limited	other	421.8K	¥1,842	-3.0%	¥672M ($4.3M)
2022-02-16	BUY	Market Buy	江藤公則 ETO MASANORI	passive	4.6M	¥2,081	-14.2%	¥1.3B ($8.4M)
2022-02-16	BUY	Market Buy	江藤公則 ETO MASANORI	passive	4.6M	¥2,081	-	¥1.3B ($8.4M)
2021-11-19	BUY	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	2.3M	¥2,585	-30.9%	¥5.8B ($37.7M)
2021-11-19	SELL	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	59.5K	¥2,585	+30.9%	¥48M ($311K)
2021-04-21	BUY	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	2.7M	¥2,018	-11.5%	¥963M ($6.2M)
2021-04-21	SELL	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	76.9K	¥2,018	+11.5%	¥37M ($237K)
2021-04-16	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	18.2K	¥2,053	-	¥37M ($242K)
2021-04-16	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	108.8K	¥2,053	-13.0%	¥112M ($722K)
2021-04-16	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	4.6M	¥2,053	-13.0%	¥849M ($5.5M)

Showing the 50 most recent of 51 filings.

Frequently asked questions

Who has been buying eGuarantee, Inc. stock?: 15 distinct investors have filed 32 disclosed large-shareholding filings in eGuarantee, Inc. (8771), most recently on 2026-05-13. 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 eGuarantee, Inc. have?: eGuarantee, Inc. has 32 buy-side and 15 sell-side disclosures on record, covering ¥64.9B ($418.5M) in total reported value, spanning 2021-04-07 to 2026-05-13.
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.