Who has been buying Precision System Science Co., Ltd. stock?

5 distinct investors have filed 3 disclosed large-shareholding filings in Precision System Science Co., Ltd. (7707), most recently on 2025-10-06. 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 Precision System Science Co., Ltd. have?

Precision System Science Co., Ltd. has 3 buy-side and 9 sell-side disclosures on record, covering ¥16M ($102K) in total reported value, spanning 2025-01-06 to 2025-10-06.

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.

Precision System Science Co., Ltd. 7707

Company

プレシジョン・システム・サイエンス株式会社Precision System Science Co., Ltd.

Investors

Buys

Total Value

¥16M ($102K)

Avg Return

+30.35%

Last Filing

2025-10-06

Precision System Science Co., Ltd. (7707) has 3 disclosed large-shareholding filings and 9 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥16M ($102K) in reported transaction value. The earliest filing StockDrifts holds for Precision System Science Co., Ltd. is dated 2025-01-06; the most recent is 2025-10-06. Across these filings the average return since disclosure is +30.35%, 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
2025-10-06	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	599.7K	¥195	-7.7%	¥151M ($975K)
2025-10-06	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-20.6K	¥195	-17.9%	¥14M ($90K)
2025-08-19	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	1.4M	¥209	-0.5%	¥52M ($336K)
2025-08-19	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	52.1K	¥209	-0.5%	¥6M ($41K)
2025-06-06	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	1.6M	¥208	-1.0%	¥75M ($486K)
2025-06-06	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	81.8K	¥208	+1.0%	¥10M ($67K)
2025-04-07	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	2.0M	¥164	+28.1%	¥326M ($2.1M)
2025-04-07	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	33.7K	¥164	+28.1%	¥6M ($36K)
2025-03-28	SELL	unknown	株式会社日立ハイテク Hitachi High-Tech Corporation	strategic	0	¥231	+9.1%	¥432M ($2.8M)
2025-03-12	BUY	unknown	株式会社日立ハイテク Hitachi High-Tech Corporation	strategic	1.9M	¥231	-	¥128M ($825K)
2025-03-12	SELL	unknown	株式会社日立ハイテク Hitachi High-Tech Corporation	strategic	1.9M	¥231	+9.1%	¥208M ($1.3M)
2025-01-06	SELL	unknown	田島秀二 Shuji Tajima	strategic	4.6M	¥225	+6.7%	¥37M ($241K)
2025-01-06	SELL	unknown	有限会社ユニテック Unitec Co., Ltd.	strategic	1.2M	¥225	+6.7%	¥13M ($84K)

Frequently asked questions

Who has been buying Precision System Science Co., Ltd. stock?: 5 distinct investors have filed 3 disclosed large-shareholding filings in Precision System Science Co., Ltd. (7707), most recently on 2025-10-06. 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 Precision System Science Co., Ltd. have?: Precision System Science Co., Ltd. has 3 buy-side and 9 sell-side disclosures on record, covering ¥16M ($102K) in total reported value, spanning 2025-01-06 to 2025-10-06.
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.