Who has been buying Estore Corporation stock?

5 distinct investors have filed 5 disclosed large-shareholding filings in Estore Corporation (4304), most recently on 2025-04-08. 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 Estore Corporation have?

Estore Corporation has 5 buy-side and 7 sell-side disclosures on record, covering ¥7.1B ($45.8M) in total reported value, spanning 2021-04-05 to 2025-04-08.

Where does StockDrifts get Estore Corporation insider data?

From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.

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.

Estore Corporation 4304

Company

株式会社EストアーEstore Corporation

Investors

Buys

Total Value

¥7.1B ($45.8M)

Avg Return

-5.70%

Last Filing

2025-04-08

Estore Corporation (4304) has 5 disclosed large-shareholding filings and 7 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥7.1B ($45.8M) in reported transaction value. The earliest filing StockDrifts holds for Estore Corporation is dated 2021-04-05; the most recent is 2025-04-08. All of it is parsed from EDINET large-shareholding (5%+) reports, the official disclosure system operated by the Financial Services Agency (Japan). Across these filings the average return since disclosure is -5.70%, 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
2025-04-08	SELL	unknown	石村賢一 Kenichi Ishimura	unknown	0	¥1,943	-0.1%	¥340M ($2.2M)
2025-04-04	BUY	unknown	株式会社JG27 JG27 Inc.	activist	4.6M	¥1,942	+0.2%	¥4.8B ($31.2M)
2025-01-08	BUY	Market Buy	株式会社ユニコム Unicom Co., Ltd.	activist	1.8M	¥1,920	+1.4%	¥64M ($411K)
2025-01-08	BUY	Market Buy	石村賢一 Kenichi Ishimura	other	150.0K	¥1,920	+1.4%	¥5M ($33K)
2023-09-25	BUY	unknown	株式会社ユニコム Unicom Co., Ltd.	activist	1.8M	¥1,479	+31.6%	¥2.7B ($17.2M)
2023-09-25	BUY	unknown	株式会社ユニコム Unicom Co., Ltd.	activist	1.8M	¥1,479	+31.6%	¥2.7B ($17.2M)
2023-09-25	BUY	unknown	石村賢一 Kenichi Ishimura	other	150.0K	¥1,479	+31.6%	¥222M ($1.4M)
2023-09-25	BUY	unknown	石村賢一 Kenichi Ishimura	other	150.0K	¥1,479	+31.6%	¥222M ($1.4M)
2023-08-30	SELL	subscription	インフレクション・ツー・インベストメント・インク(InfleXion II Investment, Inc.) InfleXion II Investment, Inc.	passive	237.6K	¥1,375	-41.5%	¥340M ($2.2M)
2023-08-23	SELL	subscription	インフレクション・ツー・インベストメント・インク(InfleXion II Investment, Inc.) InfleXion II Investment, Inc.	passive	495.0K	¥1,340	-45.2%	¥28M ($180K)
2023-02-06	BUY	unknown	株式会社ユニコム Unicom Co., Ltd.	activist	1.8M	¥1,482	+31.3%	¥2.7B ($17.2M)
2023-02-06	BUY	unknown	石村賢一 Kenichi Ishimura	other	150.0K	¥1,482	+31.3%	¥222M ($1.4M)
2022-11-22	SELL	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	243.4K	¥1,305	-49.1%	¥82M ($532K)
2022-11-01	BUY	unknown	石村賢一 Kenichi Ishimura	other	150.0K	¥1,408	+38.2%	¥211M ($1.4M)
2022-11-01	BUY	unknown	株式会社ユニコム Unicom Co., Ltd.	activist	1.8M	¥1,408	+38.2%	¥2.5B ($16.4M)
2021-06-07	SELL	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	306.4K	¥1,969	+1.2%	¥251M ($1.6M)
2021-05-31	SELL	subscription	インフレクション・ツー・インベストメント・インク(InfleXion II Investment, Inc.) InfleXion II Investment, Inc.	passive	518.8K	¥2,033	+4.3%	¥398M ($2.6M)
2021-05-26	BUY	subscription	インフレクション・ツー・インベストメント・インク(InfleXion II Investment, Inc.) InfleXion II Investment, Inc.	passive	732.7K	¥2,155	-9.7%	¥56M ($360K)
2021-04-05	BUY	unknown	株式会社ユニコム Unicom Co., Ltd.	activist	1.8M	¥2,486	-21.7%	¥2.1B ($13.8M)
2021-04-05	SELL	unknown	石村賢一 Kenichi Ishimura	other	150.0K	¥2,486	+21.7%	¥21M ($139K)

Frequently asked questions

Who has been buying Estore Corporation stock?: 5 distinct investors have filed 5 disclosed large-shareholding filings in Estore Corporation (4304), most recently on 2025-04-08. 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 Estore Corporation have?: Estore Corporation has 5 buy-side and 7 sell-side disclosures on record, covering ¥7.1B ($45.8M) in total reported value, spanning 2021-04-05 to 2025-04-08.
Where does StockDrifts get Estore Corporation insider data?: From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.
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.

Source filings

Every trade listed above is disclosed in EDINET large-shareholding (5%+) reports, filed with the Financial Services Agency (Japan). View the original EDINET filings for Estore Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.