FIRST HAWAIIAN, INC. 10-Q

ITEM 5. OTHER INFORMATION ​ During the three months ended March 31, 2025, none of the Company’s directors or officers (as defined in Rule 16a-1(f) under the Exchange Act) adopted or terminated any contract, instruction or written plan for the purchase or sale of the Company’s securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1 (c) or any “ non-Rule 10b5-1 trading arrangement,” as defined in Item 408(c) of Regulation S-K. ​ 80 Table of Contents ​ ITEM 6. EXHIBITS ​ A list of exhibits to this Form 10-Q is set forth on the Exhibit Index and is incorporated herein by reference. ​ ​ Exhibit Index ​ ​ ​ Exhibit Number ​ ​ ​ 31.1 Certification of Chief Executive Officer Pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as Amended, Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 ​ ​ 31.2 Certification of Chief Financial Officer Pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as Amended, Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 ​ ​ 32.1 Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 ​ ​ 32.2 Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 ​ ​ 101.INS XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document ​ ​ 101.SCH Inline XBRL Taxonomy Extension Schema Document ​ ​ 101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document ​ ​ 101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document ​ ​ 101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document ​ ​ 101.DEF Inline XBRL Taxonomy Extension Definition Linkbase Document ​ ​ 104 Cover Page Interactive Data File – the cover page XBRL tags are embedded within the Inline XBRL document (included in Exhibit 101) ​ ​ ​ 81 Table of Contents Signatures ​ Pursuant to the requirements of Section 13 or 15(d) 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. ​ ​ ​ ​ ​ ​ ​ ​ ​ Date: May 5, 2025 ​ First Hawaiian, Inc. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ By: ​ /s/ Robert S. Harrison ​ ​ ​ Robert S. Harrison Chairman of the Board, President and Chief Executive Officer (Principal Executive Officer) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ By: ​ /s/ James M. Moses ​ ​ ​ James M. Moses Vice Chairman and Chief Financial Officer ​ ​ ​ ​ ​ 82