Who has been buying The 77 Bank, Ltd. stock?

12 distinct investors have filed 13 disclosed large-shareholding filings in The 77 Bank, Ltd. (8341), most recently on 2026-01-22. 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 The 77 Bank, Ltd. have?

The 77 Bank, Ltd. has 13 buy-side and 10 sell-side disclosures on record, covering ¥6.8B ($43.9M) in total reported value, spanning 2022-02-04 to 2026-01-22.

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.

The 77 Bank, Ltd. 8341

Company

株式会社七十七銀行The 77 Bank, Ltd.

Investors

Buys

Total Value

¥6.8B ($43.9M)

Avg Return

+181.99%

Last Filing

2026-01-22

The 77 Bank, Ltd. (8341) has 13 disclosed large-shareholding filings and 10 disclosed disposals on record, filed by 12 distinct investors. Together those filings cover ¥6.8B ($43.9M) in reported transaction value. The earliest filing StockDrifts holds for The 77 Bank, Ltd. is dated 2022-02-04; the most recent is 2026-01-22. Across these filings the average return since disclosure is +181.99%, 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
2026-01-22	BUY	Market Buy	みずほ証券株式会社	other	237.2K	¥2,848	+47.0%	¥109M ($704K)
2026-01-22	BUY	Market Buy	アセットマネジメントOne株式会社	other	4.1M	¥2,848	+47.0%	¥2.0B ($12.7M)
2026-01-22	BUY	Market Buy	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	262.3K	¥2,848	+47.0%	¥175M ($1.1M)
2025-10-22	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	3.4M	¥2,084	+100.8%	¥7.2B ($46.2M)
2025-10-22	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	200.2K	¥2,084	+100.8%	¥417M ($2.7M)
2025-10-22	BUY	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	198.0K	¥2,084	+100.8%	¥413M ($2.7M)
2024-05-09	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	5.9M	¥1,473.33	+184.1%	¥1.1B ($7.1M)
2024-05-09	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	123.3K	¥1,473.33	-	¥182M ($1.2M)
2023-12-21	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	33.0K	¥1,111.67	+276.5%	¥3.2B ($20.8M)
2023-12-21	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	2.6M	¥1,111.67	-276.5%	¥639M ($4.1M)
2023-12-21	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	819.0K	¥1,111.67	-276.5%	¥43M ($275K)
2023-08-21	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	5.1M	¥970.33	+331.3%	¥1.0B ($6.6M)
2023-01-10	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	4.1M	¥698.33	+499.3%	¥2.9B ($18.4M)
2022-10-03	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.3M	¥582.67	-	¥295M ($1.9M)
2022-10-03	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.8M	¥582.67	-	¥143M ($922K)
2022-10-03	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	473.8K	¥582.67	-	¥107M ($692K)
2022-10-03	SELL	negotiated	エム・ユー投資顧問株式会社 M.U. Investment Advisors Co., Ltd.	unknown	0	¥582.67	-	¥116M ($749K)
2022-08-19	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	3.2M	¥580	-	¥453M ($2.9M)
2022-06-21	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	4.0M	¥632.33	-	¥2.5B ($16.2M)
2022-06-21	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	166.6K	¥632.33	-	-
2022-06-21	BUY	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	3.2M	¥632.33	-	¥102M ($657K)
2022-06-21	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	859.3K	¥632.33	-	¥39M ($250K)
2022-02-04	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	166.6K	¥527.67	-	¥16M ($104K)
2022-02-04	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	3.1M	¥527.67	-	¥146M ($939K)
2022-02-04	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	917.9K	¥527.67	-	¥97M ($626K)

Frequently asked questions

Who has been buying The 77 Bank, Ltd. stock?: 12 distinct investors have filed 13 disclosed large-shareholding filings in The 77 Bank, Ltd. (8341), most recently on 2026-01-22. 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 The 77 Bank, Ltd. have?: The 77 Bank, Ltd. has 13 buy-side and 10 sell-side disclosures on record, covering ¥6.8B ($43.9M) in total reported value, spanning 2022-02-04 to 2026-01-22.
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.