Who has been buying Early Age Co., Ltd. stock?

2 distinct investors have filed 1 disclosed large-shareholding filings in Early Age Co., Ltd. (3248), most recently on 2025-09-22. 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 Early Age Co., Ltd. have?

Early Age Co., Ltd. has 1 buy-side and 13 sell-side disclosures on record, covering ¥445M ($2.9M) in total reported value, spanning 2021-09-03 to 2025-09-22.

Where does StockDrifts get Early Age Co., Ltd. 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.

Early Age Co., Ltd. 3248

Company

株式会社アールエイジEarly Age Co., Ltd.

Investors

Buys

Total Value

¥445M ($2.9M)

Avg Return

+29.68%

Last Filing

2025-09-22

Early Age Co., Ltd. (3248) has 1 disclosed large-shareholding filings and 13 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥445M ($2.9M) in reported transaction value. The earliest filing StockDrifts holds for Early Age Co., Ltd. is dated 2021-09-03; the most recent is 2025-09-22. 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 +29.68%, 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
2025-09-22	BUY	unknown	株式会社BHAGコーポレーション BHAG Corporation Co., Ltd.	other	1.6M	¥901	-0.1%	¥1.4B ($9.2M)
2025-09-22	SELL	unknown	向井山達也 tatsuya mukaiyama	activist	147.1K	¥901	+0.1%	¥29M ($189K)
2024-09-19	BUY	unknown	株式会社BHAGコーポレーション BHAG Corporation Co., Ltd.	other	1.6M	¥888	+1.4%	¥1.4B ($9.1M)
2024-09-19	SELL	unknown	向井山達也 tatsuya mukaiyama	activist	179.3K	¥888	-1.4%	¥29M ($186K)
2024-06-19	BUY	unknown	株式会社BHAGコーポレーション BHAG Corporation Co., Ltd.	other	1.6M	¥886	+1.6%	¥1.4B ($9.1M)
2024-06-19	SELL	unknown	向井山達也 tatsuya mukaiyama	activist	211.9K	¥886	-1.6%	¥43M ($275K)
2024-04-23	BUY	unknown	株式会社BHAGコーポレーション BHAG Corporation Co., Ltd.	other	1.6M	¥860	+4.7%	¥1.4B ($8.8M)
2024-04-23	SELL	unknown	向井山達也 tatsuya mukaiyama	activist	259.8K	¥860	-4.7%	¥28M ($178K)
2023-10-30	SELL	unknown	向井山達也 tatsuya mukaiyama	activist	292.1K	¥762	-18.1%	¥25M ($160K)
2023-10-30	BUY	unknown	株式会社BHAGコーポレーション BHAG Corporation Co., Ltd.	other	1.6M	¥762	+18.1%	¥1.2B ($7.8M)
2023-10-05	SELL	unknown	向井山達也 tatsuya mukaiyama	activist	324.4K	¥920	+2.2%	¥32M ($208K)
2023-10-05	BUY	unknown	株式会社BHAGコーポレーション BHAG Corporation Co., Ltd.	other	1.6M	¥920	-2.2%	¥1.5B ($9.4M)
2023-09-19	BUY	unknown	株式会社BHAGコーポレーション BHAG Corporation Co., Ltd.	other	1.6M	¥855	+5.3%	¥1.4B ($8.8M)
2023-09-19	SELL	unknown	向井山達也 tatsuya mukaiyama	activist	359.5K	¥855	-5.3%	¥29M ($188K)
2022-12-05	BUY	unknown	株式会社BHAGコーポレーション BHAG Corporation Co., Ltd.	other	1.6M	¥717	+25.5%	¥1.1B ($7.4M)
2022-12-05	SELL	unknown	向井山達也 tatsuya mukaiyama	activist	393.6K	¥717	-25.5%	¥23M ($150K)
2022-09-26	BUY	unknown	株式会社BHAGコーポレーション BHAG Corporation Co., Ltd.	other	1.6M	¥754	+19.4%	¥1.2B ($7.7M)
2022-09-26	BUY	unknown	株式会社BHAGコーポレーション BHAG Corporation Co., Ltd.	other	1.6M	¥754	+19.4%	¥1.2B ($7.7M)
2022-09-26	SELL	unknown	向井山達也 tatsuya mukaiyama	activist	425.3K	¥754	-19.4%	¥25M ($164K)
2022-09-26	SELL	unknown	向井山達也 tatsuya mukaiyama	activist	425.8K	¥754	-19.4%	¥25M ($161K)
2021-10-08	BUY	unknown	株式会社BHAGコーポレーション BHAG Corporation Co., Ltd.	other	1.6M	¥694	+29.7%	¥445M ($2.9M)
2021-10-08	SELL	unknown	向井山達也 tatsuya mukaiyama	activist	459.0K	¥694	-29.7%	¥445M ($2.9M)
2021-09-03	SELL	unknown	株式会社BHAGコーポレーション BHAG Corporation Co., Ltd.	activist	950.0K	¥645	-39.5%	¥6M ($38K)
2021-09-03	SELL	unknown	向井山達也 tatsuya mukaiyama	activist	1.1M	¥645	-39.5%	¥7M ($44K)

Frequently asked questions

Who has been buying Early Age Co., Ltd. stock?: 2 distinct investors have filed 1 disclosed large-shareholding filings in Early Age Co., Ltd. (3248), most recently on 2025-09-22. 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 Early Age Co., Ltd. have?: Early Age Co., Ltd. has 1 buy-side and 13 sell-side disclosures on record, covering ¥445M ($2.9M) in total reported value, spanning 2021-09-03 to 2025-09-22.
Where does StockDrifts get Early Age Co., Ltd. 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 Early Age Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.