Who has been buying Ryomo Systems Co.,Ltd. stock?

3 distinct investors have filed 3 disclosed large-shareholding filings in Ryomo Systems Co.,Ltd. (9691), most recently on 2025-11-18. 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 Ryomo Systems Co.,Ltd. have?

Ryomo Systems Co.,Ltd. has 3 buy-side and 0 sell-side disclosures on record, covering ¥467M ($3.0M) in total reported value, spanning 2025-11-18 to 2025-11-18.

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.

Ryomo Systems Co.,Ltd. 9691

Company

株式会社両毛システムズRyomo Systems Co.,Ltd.

Investors

Buys

Total Value

¥467M ($3.0M)

Avg Return

-9.00%

Last Filing

2025-11-18

Ryomo Systems Co.,Ltd. (9691) has 3 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥467M ($3.0M) in reported transaction value. The earliest filing StockDrifts holds for Ryomo Systems Co.,Ltd. is dated 2025-11-18; the most recent is 2025-11-18. Across these filings the average return since disclosure is -9.00%, 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
2026-07-15	SELL	unknown	光通信株式会社	unknown	0	¥5,150	-0.2%	¥304M ($2.0M)
2026-07-15	SELL	unknown	株式会社UH5	unknown	0	¥5,150	-0.2%	¥49M ($315K)
2026-07-15	SELL	unknown	HIKARI TSUSHIN INVESTMENTS OKINAWA株式会社	unknown	0	¥5,150	-0.2%	¥555M ($3.6M)
2026-07-09	SELL	unknown	日野貞実	unknown	0	¥5,180	+0.4%	¥365M ($2.4M)
2026-07-09	BUY	unknown	中部電力株式会社	other	595.9K	¥5,180	-	¥3.1B ($19.9M)
2026-07-09	BUY	Market Buy	株式会社ミツバ	corporate	2.8M	¥5,180	-0.4%	¥5.2B ($33.5M)
2026-05-21	BUY	unknown	株式会社ミツバ	corporate	1.8M	¥5,190	-	-
2026-05-21	BUY	unknown	株式会社ミツバ	activist	1.8M	¥5,190	-	-
2026-05-21	BUY	negotiated	日野貞実	strategic	70.6K	¥5,190	-	-
2026-05-21	BUY	negotiated	日野貞実	strategic	70.6K	¥5,190	-	¥366M ($2.4M)
2026-05-21	BUY	unknown	株式会社ミツバ MITSUBA Corporation	corporate	1.8M	¥5,190	-	-
2026-05-21	BUY	unknown	株式会社三ツ葉電機製作所 Mitsuba Electric Mfg. Co., Ltd.	corporate	1.4M	¥5,190	-0.6%	¥7.2B ($46.2M)
2025-11-18	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	58.8K	¥4,335	+19.0%	¥255M ($1.6M)
2025-11-18	BUY	Market Buy	株式会社UH5 UH5 Co., Ltd.	passive	9.4K	¥4,335	+19.0%	¥41M ($263K)
2025-11-18	BUY	Market Buy	HIKARI TSUSHIN INVESTMENTS OKINAWA株式会社 HIKARI TSUSHIN INVESTMENTS OKINAWA Co., Ltd.	passive	107.7K	¥4,335	+19.0%	¥467M ($3.0M)

Frequently asked questions

Who has been buying Ryomo Systems Co.,Ltd. stock?: 3 distinct investors have filed 3 disclosed large-shareholding filings in Ryomo Systems Co.,Ltd. (9691), most recently on 2025-11-18. 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 Ryomo Systems Co.,Ltd. have?: Ryomo Systems Co.,Ltd. has 3 buy-side and 0 sell-side disclosures on record, covering ¥467M ($3.0M) in total reported value, spanning 2025-11-18 to 2025-11-18.
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.