Who has been buying Ryosan Company, Limited stock?

10 distinct investors have filed 14 disclosed large-shareholding filings in Ryosan Company, Limited (8140), most recently on 2024-01-04. 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 Ryosan Company, Limited have?

Ryosan Company, Limited has 14 buy-side and 5 sell-side disclosures on record, covering ¥7.6B ($48.7M) in total reported value, spanning 2023-02-09 to 2024-01-04.

Where does StockDrifts get Ryosan Company, Limited insider data?

From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.

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.

Ryosan Company, Limited 8140

Company

株式会社リョーサンRyosan Company, Limited

Investors

Buys

Total Value

¥7.6B ($48.7M)

Avg Return

+18.89%

Last Filing

2024-01-04

Ryosan Company, Limited (8140) has 14 disclosed large-shareholding filings and 5 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥7.6B ($48.7M) in reported transaction value. The earliest filing StockDrifts holds for Ryosan Company, Limited is dated 2023-02-09; the most recent is 2024-01-04. All of it is parsed from EDINET large-shareholding (5%+) reports, the official disclosure system operated by the Financial Services Agency (Japan). Across these filings the average return since disclosure is +18.89%, 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
2024-01-04	BUY	unknown	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	1.4M	¥4,775	+3.0%	¥549M ($3.5M)
2024-01-04	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	2.3M	¥4,775	+3.0%	¥11.2B ($72.1M)
2023-12-14	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	2.3M	¥4,840	+1.6%	¥11.3B ($73.0M)
2023-12-14	BUY	unknown	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	1.3M	¥4,840	+1.6%	¥1.2B ($7.8M)
2023-11-30	BUY	unknown	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	1.1M	¥4,945	-0.5%	¥1.3B ($8.5M)
2023-11-30	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	2.3M	¥4,945	-0.5%	¥11.6B ($74.6M)
2023-11-14	BUY	unknown	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	790.9K	¥4,645	+5.9%	¥1.2B ($7.9M)
2023-11-14	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	2.3M	¥4,645	+5.9%	¥10.9B ($70.1M)
2023-11-06	BUY	unknown	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	528.1K	¥4,645	+5.9%	¥1.3B ($8.2M)
2023-11-06	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	2.3M	¥4,645	+5.9%	¥10.9B ($70.1M)
2023-10-23	BUY	Market Buy	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	253.4K	¥4,600	+7.0%	¥1.2B ($7.5M)
2023-10-23	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	2.3M	¥4,600	+7.0%	¥12M ($74K)
2023-09-26	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	2.3M	¥4,415	+11.4%	¥806M ($5.2M)
2023-08-08	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	2.2M	¥4,100	+20.0%	¥1.1B ($7.2M)
2023-07-04	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	1.9M	¥4,440	+10.8%	¥1.4B ($8.7M)
2023-06-29	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	1.6M	¥4,455	+10.4%	¥1.1B ($7.3M)
2023-06-27	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	1.3M	¥4,260	+15.5%	¥5.6B ($36.4M)
2023-06-06	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	312.4K	¥4,030	-22.1%	¥242M ($1.6M)
2023-06-06	SELL	negotiated	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	641.5K	¥4,030	-22.1%	¥877M ($5.7M)
2023-06-06	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	221.0K	¥4,030	+22.1%	¥891M ($5.7M)
2023-03-20	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	138.4K	¥3,120	+57.7%	¥148M ($956K)
2023-03-20	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	338.4K	¥3,120	-57.7%	¥406M ($2.6M)
2023-03-20	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	650.8K	¥3,120	-57.7%	¥671M ($4.3M)
2023-03-16	BUY	Market Buy	菱洋エレクトロ株式会社 RYOYO ELECTRO CORPORATION	strategic	4.7M	¥3,190	+54.2%	¥1.0B ($6.6M)
2023-02-14	BUY	acquisition	菱洋エレクトロ株式会社 RYOYO ELECTRO CORPORATION	strategic	4.4M	¥3,050	+61.3%	¥13.4B ($86.3M)
2023-02-09	SELL	unknown	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	unknown	0	¥3,080	-59.7%	¥14.0B ($90.4M)

Frequently asked questions

Who has been buying Ryosan Company, Limited stock?: 10 distinct investors have filed 14 disclosed large-shareholding filings in Ryosan Company, Limited (8140), most recently on 2024-01-04. 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 Ryosan Company, Limited have?: Ryosan Company, Limited has 14 buy-side and 5 sell-side disclosures on record, covering ¥7.6B ($48.7M) in total reported value, spanning 2023-02-09 to 2024-01-04.
Where does StockDrifts get Ryosan Company, Limited insider data?: From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.
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.

Source filings

Every trade listed above is disclosed in EDINET large-shareholding (5%+) reports, filed with the Financial Services Agency (Japan). View the original EDINET filings for Ryosan Company, Limited. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.