General Stock Information

As of September 30, 2025

Stock Listing (Code)	Tokyo Stock Exchange(8331)
Authorized Number of Shares	2,500,000 thousand
Number of Issued Shares	805,521 thousand
Transfer Agent	Sumitomo Mitsui Trust Bank, Limited 1-4-1 Marunouchi, Chiyoda-ku, Tokyo 100-8233

Principal Shareholders

The ten largest shareholders of Chiba Bank and their respective shareholdings as of September 30, 2025 were as follows:

	Number of Shares (in thousands)*1	Percentage of Total Number of Issued Shares (excl. Treasury Shares)*2(%)
The Master Trust Bank of Japan, Ltd. (Trust Account)	101,580	14.35
Custody Bank of Japan, Ltd. (Trust Account)	38,025	5.37
Nippon Life Insurance Company	26,870	3.79
STATE STREET BANK AND TRUST COMPANY 505223	25,172	3.55
STATE STREET BANK AND TRUST COMPANY 505001	23,418	3.30
Sumitomo Life Insurance Company	18,302	2.58
Meiji Yasuda Life Insurance Company	17,842	2.52
The Dai-ichi Life Insurance Company, Limited	14,462	2.04
Sompo Japan Insurance Inc.	14,037	1.98
JP MORGAN CHASE BANK 385781	12,978	1.83

*Except for the list above, there are 97,982 thousand of treasury shares. (excl. one thousand shares which, although registered in the name of Chiba Bank on the shareholders’ list, are not actually owned by Chiba Bank.)

*1.Rounded down to the nearest thousand *2.Rounded down to the second decimal places

Classification by Type of Shareholders

As of September 30, 2025

	Number of Shareholders	Number of Share Unit Held	Parcentage of Total Number of Share Units(%)
National and Municipal Governments	3	98	0.00
Financial Institutions	76	2,897,698	35.99
Securities Companies	42	202,256	2.51
Other Domestic Companies	1,206	1,027,719	12.77
Foreign Investors	610	1,993,099‬	24.76
Individual and Others	36,816	1,929,555	23.97
total	38,753	8,050,425	100.00

*The number of shares constituting one unit was 100 shares. Except for the list above, there are 478,587 shares of less than one unit. (Share Unit has been changed from 1,000 to 100 shares since April 1, 2018.)

General Stock Information

Principal Shareholders

Classification by Type of Shareholders

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