Who has been buying NISSO PRONITY Co., Ltd. stock?

5 distinct investors have filed 6 disclosed large-shareholding filings in NISSO PRONITY Co., Ltd. (3440), most recently on 2025-03-05. 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 NISSO PRONITY Co., Ltd. have?

NISSO PRONITY Co., Ltd. has 6 buy-side and 3 sell-side disclosures on record, covering ¥1.5B ($9.9M) in total reported value, spanning 2021-04-23 to 2025-03-05.

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.

NISSO PRONITY Co., Ltd. 3440

Company

日創プロニティ株式会社NISSO PRONITY Co., Ltd.

Investors

Buys

Total Value

¥1.5B ($9.9M)

Avg Return

+9.39%

Last Filing

2025-03-05

NISSO PRONITY Co., Ltd. (3440) has 6 disclosed large-shareholding filings and 3 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥1.5B ($9.9M) in reported transaction value. The earliest filing StockDrifts holds for NISSO PRONITY Co., Ltd. is dated 2021-04-23; the most recent is 2025-03-05. Across these filings the average return since disclosure is +9.39%, 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
2025-03-05	BUY	unknown	石田洋子 Yoko Ishida	strategic	863.4K	¥893	-2.0%	¥771M ($5.0M)
2025-03-05	SELL	unknown	石田利幸(相続人石田洋子) Toshiyuki Ishida	unknown	0	¥893	+2.0%	¥716M ($4.6M)
2024-03-04	BUY	Market Buy	石田徹 Toru Ishida	activist	513.6K	¥928	-5.7%	¥36M ($232K)
2024-03-04	BUY	Market Buy	石田由美子 Yumiko Ishida	activist	33.0K	¥928	-5.7%	¥3M ($16K)
2024-03-04	BUY	Market Buy	NTi company株式会社 NTi company Co., Ltd.	activist	1.2M	¥928	-5.7%	¥84M ($541K)
2023-04-20	BUY	Market Buy	石田徹 Toru Ishida	activist	513.6K	¥805	+8.7%	¥2M ($15K)
2023-04-20	BUY	unknown	石田利幸 Toshiyuki Ishida	activist	863.4K	¥805	+8.7%	¥681M ($4.4M)
2023-04-20	BUY	Market Buy	石田由美子 Yumiko Ishida	activist	33.0K	¥805	-	-
2023-04-20	BUY	Market Buy	NTi company株式会社 NTi company Co., Ltd.	activist	1.2M	¥805	-	¥959M ($6.2M)
2023-04-20	SELL	unknown	石田洋子 Yoko Ishida	unknown	0	¥805	-8.7%	¥264M ($1.7M)
2021-04-23	SELL	unknown	石田利幸 Toshiyuki Ishida	activist	1.7M	¥799	-9.5%	¥32M ($209K)
2021-04-23	BUY	unknown	石田洋子 Yoko Ishida	activist	328.0K	¥799	-	-

Frequently asked questions

Who has been buying NISSO PRONITY Co., Ltd. stock?: 5 distinct investors have filed 6 disclosed large-shareholding filings in NISSO PRONITY Co., Ltd. (3440), most recently on 2025-03-05. 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 NISSO PRONITY Co., Ltd. have?: NISSO PRONITY Co., Ltd. has 6 buy-side and 3 sell-side disclosures on record, covering ¥1.5B ($9.9M) in total reported value, spanning 2021-04-23 to 2025-03-05.
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.