Who has been buying Bank of The Ryukyus, Limited stock?

5 distinct investors have filed 8 disclosed large-shareholding filings in Bank of The Ryukyus, Limited (8399), most recently on 2024-09-06. 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 Bank of The Ryukyus, Limited have?

Bank of The Ryukyus, Limited has 8 buy-side and 3 sell-side disclosures on record, covering ¥5.3B ($34.1M) in total reported value, spanning 2022-12-07 to 2024-09-06.

Where does StockDrifts get Bank of The Ryukyus, 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.

Bank of The Ryukyus, Limited 8399

Company

株式会社琉球銀行Bank of The Ryukyus, Limited

Investors

Buys

Total Value

¥5.3B ($34.1M)

Avg Return

+167.59%

Last Filing

2024-09-06

Bank of The Ryukyus, Limited (8399) has 8 disclosed large-shareholding filings and 3 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥5.3B ($34.1M) in reported transaction value. The earliest filing StockDrifts holds for Bank of The Ryukyus, Limited is dated 2022-12-07; the most recent is 2024-09-06. 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 +167.59%, 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
2026-07-07	SELL	unknown	野村アセットマネジメント株式会社	other	1.5M	¥2,692	-11.0%	¥244M ($1.6M)
2026-07-07	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-20.9K	¥2,692	-	-
2026-07-07	BUY	Market Buy	野村證券株式会社	other	202.0K	¥2,692	+11.0%	¥12M ($75K)
2026-05-22	BUY	unknown	野村アセットマネジメント株式会社	other	1.6M	¥2,603	-4.8%	¥4.2B ($26.9M)
2026-05-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	373.8K	¥2,603	-4.8%	¥973M ($6.3M)
2026-05-22	BUY	unknown	野村證券株式会社	other	200.0K	¥2,603	-4.8%	¥520M ($3.4M)
2024-09-06	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.7M	¥1,030	+138.9%	¥1.7B ($11.0M)
2024-09-06	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	76.7K	¥1,030	+138.9%	¥79M ($510K)
2023-11-07	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	596.4K	¥1,239	-98.6%	¥43M ($276K)
2023-11-07	SELL	unknown	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	1.1M	¥1,239	-98.6%	¥529M ($3.4M)
2023-10-20	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.2M	¥1,183	+108.0%	¥2.6B ($16.5M)
2023-02-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.1M	¥946	+160.2%	¥8M ($53K)
2023-02-07	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	3.5K	¥946	+160.2%	¥82M ($526K)
2023-01-11	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	344.8K	¥877	+180.6%	¥302M ($2.0M)
2023-01-11	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.1M	¥877	+180.6%	¥1.8B ($11.6M)
2022-12-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.1M	¥804	+206.1%	¥1.7B ($10.8M)
2022-12-07	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	8.8K	¥804	+206.1%	¥645M ($4.2M)
2022-12-07	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	unknown	0	¥804	-206.1%	¥90M ($581K)

Frequently asked questions

Who has been buying Bank of The Ryukyus, Limited stock?: 5 distinct investors have filed 8 disclosed large-shareholding filings in Bank of The Ryukyus, Limited (8399), most recently on 2024-09-06. 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 Bank of The Ryukyus, Limited have?: Bank of The Ryukyus, Limited has 8 buy-side and 3 sell-side disclosures on record, covering ¥5.3B ($34.1M) in total reported value, spanning 2022-12-07 to 2024-09-06.
Where does StockDrifts get Bank of The Ryukyus, 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 Bank of The Ryukyus, Limited. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.