Bank First Corp 10-Q

ITEM 5. OTHER INFORMATION None ​ 54 Table of Contents ​ ITEM 6. EXHIBITS ​ Exhibit Index ​ Exhibit Number Description ​ ​ ​ 31.1 ​ Rule 13a-14(a) Certification of Chief Executive Officer* 31.2 ​ Rules 13a-14(a) Certification of Chief Financial Officer* 32.1 ​ Section 1350 Certification of Chief Executive Officer and Chief Financial Officer** 101 INS ​ XBRL Instance Document 101.SCH ​ XBRL Taxonomy Extension Schema Document 101.CAL ​ XBRL Taxonomy Extension Calculation Linkbase Document 101.DEF ​ XBRL Taxonomy Extension Definition Linkbase Document 101.LAB ​ XBRL Taxonomy Extension Label Linkbase Document 101.PRE ​ XBRL Taxonomy Extension Presentation Linkbase Document * Filed herewith. ** Furnished herewith. ​ 55 Table of Contents ​ SIGNATURES ​ Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​ ​ ​ ​ ​ ​ BANK FIRST CORPORATION ​ ​ ​ ​ ​ ​ ​ DATE: May 10, 2022 BY: /s/Kevin M. LeMahieu ​ ​ ​ Kevin M. LeMahieu ​ ​ ​ Chief Financial Officer ​ ​ ​ (Principal Financial and Accounting Officer) ​ ​ ​ 56