Who has been buying AI storm Co., Ltd. stock?

2 distinct investors have filed 1 disclosed large-shareholding filings in AI storm Co., Ltd. (3719), most recently on 2025-02-13. 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 AI storm Co., Ltd. have?

AI storm Co., Ltd. has 1 buy-side and 0 sell-side disclosures on record, covering ¥839M ($5.4M) in total reported value, spanning 2021-07-15 to 2025-02-13.

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.

AI storm Co., Ltd. 3719

Company

株式会社ジェクシードAI storm Co., Ltd.

Investors

Buys

Total Value

¥839M ($5.4M)

Avg Return

-4.38%

Last Filing

2025-02-13

AI storm Co., Ltd. (3719) has 1 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥839M ($5.4M) in reported transaction value. The earliest filing StockDrifts holds for AI storm Co., Ltd. is dated 2021-07-15; the most recent is 2025-02-13. Across these filings the average return since disclosure is -4.38%, 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
2026-08-10	BUY	Market Buy	三宅祐介 MIYAKE YUSUKE	passive	5.9M	¥146	-21.9%	¥867M ($5.6M)
2026-06-15	BUY	Market Buy	DYNAMIC BEST GROUP LIMITED	passive	3.0M	¥191	-	¥249M ($1.6M)
2026-06-15	BUY	Market Buy	DYNAMIC BEST GROUP LIMITED	passive	3.0M	¥191	-40.3%	¥249M ($1.6M)
2026-06-15	BUY	Market Buy	DYNAMIC BEST GROUP LIMOTED	passive	3.0M	¥191	-40.3%	¥581M ($3.8M)
2026-06-15	BUY	Market Buy	DYNAMIC BEST GROUP LIMITED	passive	1.7M	¥191	-	¥333M ($2.1M)
2026-06-15	BUY	Market Buy	DYNAMIC BEST GROUP LIMOTED	passive	3.0M	¥191	-	¥581M ($3.8M)
2026-06-12	BUY	Market Buy	DYNAMIC BEST GROUP LIMITED	passive	3.0M	¥196	-41.8%	¥597M ($3.8M)
2025-02-13	BUY	negotiated	ジーエックスパートナーズリミテッド(GX PARTNERS CO., LIMITED) GX PARTNERS CO., LIMITED	activist	5.9M	¥244	-	-
2023-07-25	BUY	Market Buy	モダンパス合同会社 Modern Path LLC.	passive	3.3M	¥251	-54.6%	¥839M ($5.4M)
2022-02-14	BUY	negotiated	ジーエックスパートナーズリミテッド(GX PARTNERS CO., LIMITED) GX PARTNERS CO., LIMITED	activist	5.9M	¥135	-	-
2021-07-15	BUY	negotiated	ジーエックスパートナーズリミテッド(GX PARTNERS CO., LIMITED) GX PARTNERS CO., LIMITED	activist	5.9M	¥201	-	-
2021-07-15	BUY	negotiated	ジーエックスパートナーズリミテッド(GX PARTNERS CO., LIMITED) GX PARTNERS CO., LIMITED	activist	5.9M	¥201	-	-

Frequently asked questions

Who has been buying AI storm Co., Ltd. stock?: 2 distinct investors have filed 1 disclosed large-shareholding filings in AI storm Co., Ltd. (3719), most recently on 2025-02-13. 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 AI storm Co., Ltd. have?: AI storm Co., Ltd. has 1 buy-side and 0 sell-side disclosures on record, covering ¥839M ($5.4M) in total reported value, spanning 2021-07-15 to 2025-02-13.
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.