Who has been buying JTP Co.,Ltd. stock?

4 distinct investors have filed 6 disclosed large-shareholding filings in JTP Co.,Ltd. (2488), most recently on 2026-04-16. 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 JTP Co.,Ltd. have?

JTP Co.,Ltd. has 6 buy-side and 1 sell-side disclosures on record, covering ¥340M ($2.2M) in total reported value, spanning 2024-08-27 to 2026-04-16.

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.

JTP Co.,Ltd. 2488

Company

JTP株式会社JTP Co.,Ltd.

Investors

Buys

Total Value

¥340M ($2.2M)

Avg Return

+6.28%

Last Filing

2026-04-16

JTP Co.,Ltd. (2488) has 6 disclosed large-shareholding filings and 1 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥340M ($2.2M) in reported transaction value. The earliest filing StockDrifts holds for JTP Co.,Ltd. is dated 2024-08-27; the most recent is 2026-04-16. Across these filings the average return since disclosure is +6.28%, 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
2026-04-16	BUY	Market Buy	株式会社UH Partners 2	passive	164.6K	¥1,221	+17.7%	¥73M ($474K)
2026-04-16	BUY	Market Buy	光通信株式会社	passive	430.1K	¥1,221	-	-
2026-03-30	BUY	Market Buy	光通信株式会社	passive	430.1K	¥1,138	-	-
2026-03-30	BUY	Market Buy	株式会社UH Partners 2	passive	104.4K	¥1,138	+26.3%	¥78M ($503K)
2026-02-16	SELL	unknown	JTP株式会社 JTP Co., Ltd.	unknown	0	¥1,212	-18.6%	¥1.0B ($6.5M)
2025-09-26	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	430.1K	¥1,540	-	-
2025-09-26	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	36.3K	¥1,540	-6.7%	¥40M ($257K)
2025-06-06	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	430.1K	¥1,182	+21.6%	¥70M ($450K)
2025-06-06	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	10.5K	¥1,182	-	¥12M ($80K)
2025-05-23	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	371.1K	¥1,135	+26.6%	¥79M ($511K)
2024-11-14	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	301.1K	¥979	+46.8%	¥295M ($1.9M)
2024-08-27	BUY	unknown	双日テックイノベーション株式会社 Sojitz Tech-Innovation	other	470.0K	¥1,030	-	-

Frequently asked questions

Who has been buying JTP Co.,Ltd. stock?: 4 distinct investors have filed 6 disclosed large-shareholding filings in JTP Co.,Ltd. (2488), most recently on 2026-04-16. 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 JTP Co.,Ltd. have?: JTP Co.,Ltd. has 6 buy-side and 1 sell-side disclosures on record, covering ¥340M ($2.2M) in total reported value, spanning 2024-08-27 to 2026-04-16.
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.