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美国

证券交易委员会

华盛顿特区\n20549

表格 8-K

当前报告

根据《1934年证券交易法》第13或15(d)条

\n\n \n \n

报告日期（最早事件发生的日期）

2026年10月20日

Bank First Corporation

(注册人名称\n按其章程中规定的名称)

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

威斯康星州	001-38676	39-1435359
(注册州或其它司法管辖区	(委员会	(美国国税局雇员
注册地)	文件编号)	识别号码)

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

北8街402号, 马尼托沃克, 威斯康星州]	54220
(主要执行办公室地址)	(邮政编码)

\n\n \n \n

注册人的电话号码，包括区号

(920) 652-3100

N/A

(如果自上次报告以来名称或地址有所更改，请在此处注明。)

如果本8-K表格的提交旨在同时满足注册人根据以下任何规定下的提交义务，请在下面的适当方框中打勾：

\n\n \n \n

¨	根据《证券法》第425条的书面沟通（17 CFR 230.425）

\n\n \n \n

¨	根据《交易法》第14a-12条的征求材料（17 CFR 240.14a-12）

\n\n \n \n

¨	根据《交易法》第14d-2(b)条的开始前沟通（17 CFR 240.14d-2(b)）

\n\n \n \n

¨	根据《交易法》第13e-4(c)条的开始前沟通（17 CFR 240.13e-4(c)）

根据《法案》第12(b)条注册的证券：

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

每类证券的名称	股票代码	每种证券的注册交易所 \n名称
面值为每股0.01美元的普通股	BFC	纳斯达克股票市场有限责任公司

通过勾选方框表明注册人是否是根据《1933年证券法》第405条（§230.405本章）或《1934年证券交易法》第12b-2条（§240.12b-2本章）定义的新兴成长公司。

新兴成长公司 ¨

如果为新兴成长公司，请通过勾选方框表明注册人是否选择不使用根据《交易法》第13(a)条提供的任何新修订的财务会计标准的延长过渡期。 ¨

\n \n \n \n

项目 2.02

经营成果和财务状况。

2026年10月20日，Bank First Corporation（“公司”）宣布了截至2026年9月30日的季度收益。本报告的8-K表格附有新闻稿副本作为附件99.1，并在此引用并入。

根据8-K表格的一般说明B.2，本项目2.02和附件99.1中的信息是向证券交易委员会提供的，不应视为根据《1934年证券交易法》（经修订）第18条或根据该条的其他规定而提交的文件，也不应受该条的任何责任约束。此外，本项目2.02和附件99.1中的信息不应视为根据经修订的《1933年证券法》或《交易法》的注册人的文件中引用的资料。

\n \n \n \n

\n \n

项目 9.01

\n \n

财务报表和附件。

(d) 附件

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

\n 附件 \n 编号		\n 附件描述

99.1		新闻稿，发布日期：2026年10月20日

104		封面页交互式数据文件（嵌入在Inline XBRL文档中）

签名

根据《1934年证券交易法》（经修订）的要求，注册人已 duly 为此报告签署，由下文签署人 duly 授权。

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

	FIRST 银行公司

日期：2026年10月20日	签署人：	/s/\n 凯文·M·勒马赫
		凯文·M·勒马赫
		首席财务官

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