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美国

证券交易委员会

华盛顿特区 20549

表格 8-K

当前报告

根据第 13 或 15(d) 条

《1934 年证券交易法》

报告日期（最早报告事件日期）：2026 年 10 月 28 日

PROSPERITY BANCSHARES, INC.

（注册人章程中指定的确切名称）

\n \n \n \n \n \n \n \n \n \n \n \n \n

德克萨斯州

001-35388

74-2331986

（注册成立所在州或其他司法管辖区

）

（委员会

档案编号）

（国税局雇主

识别号码）

4295 San Felipe

休斯敦, 德克萨斯州 77027

（包括邮政编码的主要行政办公室地址）

注册人电话号码（含区号）：(281) 269-7199

如果本 8-K 表格的提交旨在同时履行注册人根据以下任何规定承担的提交义务，请勾选相应方框（参见下文一般说明 A.2）：

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n
☐	根据《证券法》规则 425（17 CFR 230.425）进行的书面通信
☐	根据《交易法》规则 14a-12（17 CFR 240.14a-12）提交的征求材料
☐	根据《交易法》规则 14d-2(b)（17 CFR 240.14d-2(b)）进行的开始前通信
☐	根据《交易法》规则 13e-4(c)（17 CFR 240.13e-4(c)）进行的开始前通信

根据该法第 12(b) 条注册的证券：

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n	\n	\n	\n
各类别证券名称		交易代码		注册所在交易所名称
每股面值 $1.00 的普通股		PB		纽约证券交易所, Inc.

请勾选标记，说明注册人是否为《1933 年证券法》（17 CFR §230.405）规则 405 或《1934 年证券交易法》（17 CFR §240.12b-2）规则 12b-2 所定义的新兴成长型公司。

新兴成长型公司 ☐

如果属于新兴成长型公司，请勾选标记，说明注册人是否选择不采用《交易法》第 13(a) 条规定的、遵守任何新订或修订财务会计准则的延长过渡期。 ☐

第 2.02 项经营业绩和财务状况。

2026 年 10 月 28 日，Prosperity Bancshares, Inc. 公开发布新闻稿，公布截至 2026 年 9 月 30 日的第三季度财务业绩。该新闻稿副本作为附件 99.1 随文提交，并以引用方式纳入本文。

根据 Form 8-K 一般指示 B.2，依据本 Form 8-K 当前报告第 2.02 项及附件 99.1 提供的信息，不应视为为经修订的《1934 年证券交易法》（以下简称“《交易法》”）第 18 条之目的而“提交”，也不应以其他方式受该条规定的责任约束；除非某项申报中明确通过具体引用另有规定，否则此类信息不应视为通过引用纳入根据经修订的《1933 年证券法》或《交易法》提交的任何文件。

第 9.01 项财务报表和附件。

(d)

附件。以下文件作为附件随本 Form 8-K 当前报告一并提供：

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n	\n
附件编号		附件说明
99.1		Prosperity Bancshares, Inc. 于 2026 年 10 月 28 日发布的新闻稿。
104		封面交互式数据文件（嵌入 Inline XBRL 文档中）。

签名

根据《1934 年证券交易法》的要求，注册人已正式授权下方签署人代表注册人签署本报告。

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

\n	\n	\n	\n
		PROSPERITY BANCSHARES, INC. （注册人）

日期：2026 年 10 月 28 日		签署人：	/s/ Charlotte M. Rasche
			Charlotte M. Rasche
			执行副总裁兼总法律顾问

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