FIRST HAWAIIAN, INC.

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The following summary highlights information contained elsewhere in this Proxy Statement and provides context related to the matters to be voted on at the 2026 Annual Meeting of Stockholders of First Hawaiian, Inc. (“First Hawaiian,” “FHI,” “we,” “our,” “us” and the “Company”). This summary does not contain all

of the information that you should consider, and you should read the entire Proxy Statement before voting. For more complete information regarding the Company’s 2025 performance, please review the 2025 Annual Report.

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2026 ANNUAL MEETING INFORMATION

Meeting Agenda

We will also act on any other business that is properly raised.

TABLE OF CONTENTS​

How to Vote

Our Annual Meeting will be conducted exclusively online via live webcast, allowing all of our stockholders the option to participate in the live, online meeting from any location convenient to them and providing stockholder access to our Board and management. For further information on the virtual meeting, please see the“Frequently Asked Questions about the Annual Meeting and Voting” section in this Proxy Statement.

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Have your proxy card available and follow the instructions.

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Voting over the internet or by telephone by no later than 11:59 p.m., Eastern time, on April 21, 2026.

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Voting by mail must be received by us by April 21, 2026.

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Beneficial Owners

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If you hold your shares through a broker, bank or other nominee, that institution will instruct you as to how your shares may be voted by proxy, including whether telephone or Internet voting options are available.

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PERFORMANCE HIGHLIGHTS

2025 Business Performance

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Represents a non-GAAP measure. Please see “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended December 31, 2025 included in our 2025 Annual Report for an explanation and reconciliation.

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Capital Highlights

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The timing and amount of share repurchases are influenced by various internal and external factors.

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OVERVIEW OF THE BOARD NOMINEES

Director Nominees*

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Current Independent Director Faye W. Kurren will conclude her service on our Board of Directors at the Annual Meeting and is not listed here.

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(1)

Refers to the period from the completion of our initial public offering (“IPO”) in August 2016.

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Snapshot of the Board

Board Composition, Director Independence and Tenure (as of March 12, 2026)

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Refers to the period from the completion of

our IPO in August 2016.

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TABLE OF CONTENTS​

Board Expertise

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The following section summarizes the specific skills, professional experience and background information of each director nominee that led the Board of Directors to conclude that each such person should serve on the Board of Directors. This matrix is intended to provide a summary of our director nominees’ qualifications and is not a complete list of each director nominee’s strengths or contributions to the Board of Directors. Additional details on each director nominee’s experiences, qualifications, skills and attributes are set forth in their biographies.

FIRST HAWAIIAN COMMITMENT TO CORPORATE RESPONSIBILITY

We are committed to having sound corporate governance practices including corporate social responsibility oversight. Our Corporate Responsibility Report (“CR Report”), Corporate Governance Guidelines and other applicable policies highlight our investment in the development, career advancement and health and safety of our employees, maintenance and support of our customer relationships, service and support of our communities and attention to environmental stewardship to keep our planet and environment sustainable. Our practices are important to how we manage our business and maintain our integrity in the marketplace. In setting our practices, we seek to balance our corporate and stockholder interests, while considering applicable market practices and trends.

Our Corporate Governance Guidelines set forth a framework for our Company with respect to specific corporate governance practices. The guidelines are reviewed at least annually by the Corporate Governance and Nominating Committee, as well as amended from time to time to continue evolving our governance practices. With a focus on delivering long-term stockholder value, the backbone of our corporate governance program is to provide transparent disclosure to all stakeholders on an ongoing and consistent basis.

Our Board of Directors (the “Board”) is composed of skilled directors who follow established, robust corporate governance practices and policies. The Board believes strongly in the value of an independent board of directors and has established a Lead Independent Director role with broad responsibility. The following overview provides a snapshot of our corporate governance structure and processes, including key aspects of our Board operations.

Stakeholder Engagement

We believe that engaging with our stakeholders should be a long-term, ongoing and two-way communication process. We proactively seek out opportunities that allow us to exchange information with our stakeholders about our respective viewpoints, strategies and practices. Key stakeholders include our stockholders, our customers, our employees, our regulators and the communities we serve.

In addition to attending investor conferences and meeting individually with investors, on an annual basis, we reach out to the holders of a substantial percentage of our outstanding stock and offer to engage on governance, compensation or any other areas of interest. The feedback we receive is summarized and reported to the Chief Executive Officer, the Compensation Committee and the Corporate Governance and Nominating Committee, and the Board and the management team consider the points raised and, as appropriate, will take responsive actions with a view towards improving our practices and policies and enhancing long-term value for our stockholders and our other stakeholders.

Our 2025 governance outreach efforts consisted of the following:

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We contacted the holders of approximately 81.8% of our outstanding stock to request engagement.

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Two stockholders, who in aggregate held approximately 16.3% of our shares, accepted meetings with us.

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Company Participants:

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Executive Vice President, General Counsel and Secretary

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Head of Investor Relations

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Lead Independent Director participated in one meeting as requested by the stockholder

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Beyond these engagements, First Hawaiian Inc. also actively participates in several industry groups, including groups and task forces established through organizations such as the American Bankers Association and the Mid-Size Bank Coalition of America. These groups allow us to share ideas and discuss developments that further inform our own internal approach to a variety of topics. Further details regarding our stakeholder engagement efforts can be found elsewhere in this Proxy Statement.

Awards and Recognitions

In 2025, we collected the following accolades:

Corporate Governance

First Hawaiian Inc.’s Board and executive management work together to comply with laws and regulations, as well as to provide guidance for sound decision-making and accountability. Maintaining legal and regulatory compliance is, however, a minimum standard, and we seek to exceed this standard by keeping pace with the constantly evolving governance landscape. We maintain an environment of openness and strive to protect our culture by promoting our core values of caring, character and collaboration. We believe that by living these values, our customers, stockholders, employees and communities will continue giving us their trust and confidence.

The following documents are available athttps://ir.fhb.com/corporate-governance/highlights:

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Certificate of Incorporation

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Bylaws

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Corporate Governance Guidelines

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Audit Committee Charter

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Compensation Committee Charter

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Corporate Governance and Nominating Committee Charter

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Risk Committee Charter

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Code of Conduct and Ethics

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Clawback Policy for the Mandatory Recoupment Of Erroneously Awarded Incentive Compensation

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Our Proxy Statement and our 2025 Annual Report are available athttps://proxy.fhb.com.

Code of Conduct and Ethics

At First Hawaiian, Inc. the relationships we have with our stakeholders are of utmost importance to us. Establishing good relationships with our stakeholders requires trust, respect and fair treatment.

Our Code of Conduct and Ethics (the “Code”) forms the foundation of our ethical culture, describing how we as a company relate to others as we conduct business and how we work together as employees according to our core values. All employees, officers, and Directors of First Hawaiian, Inc. and its subsidiaries and affiliates are expected to comply with our Code of Conduct. The Code is fundamental to the success of the Company, as it promotes honest and ethical conduct, including fair dealing and the ethical handling of conflicts of interest; full, fair, accurate, timely and understandable disclosure; compliance with applicable laws, rules and regulations; the protection of the Company’s legitimate business interests, including corporate opportunities, assets and confidential information; and the deterrence of wrongdoing.

The Code of Conduct and Ethics is available at Governance Highlights—First Hawaiian, Inc. (fhb.com). Any amendments or waivers with respect to the Code of Conduct and Ethics will be disclosed on our website.

Corporate Social Responsibility

We seek to integrate sustainability considerations into our business strategies, products and services, thought leadership and operations. We offer financial solutions that provide positive long-term benefits for our customers, employees and other stakeholders.

Our people are our most important asset. To facilitate talent attraction and retention, we strive to support an inclusive workplace, with a strong culture and opportunities for our employees to grow and develop in their careers and to be supported by competitive compensation, benefits and health and wellness programs.

Supporting the island communities where we do business has always been a priority. First Hawaiian Bank, its Foundation and our employees contribute annually to more than 200 charities in the areas of civic and community support, education and financial literacy, health and human services and arts and culture ($5.6 million in Bank and Foundation donations in 2025). Professional development courses are a key component of our employee satisfaction and retention. Together with our award-winning online talent development program, we are able to achieve an inclusive and healthy work environment for our approximately 2,000 employees.

Environmental Impact

Hawaii generally has the highest energy costs of any state due to the high price of shipping petroleum to the archipelago. In 2025, First Hawaiian continued to actively pursue sustainability goals of maintaining energy efficient facilities, reducing waste, advancing sustainable transportation and supporting employees in participating in ongoing community-led sustainability initiatives.

Our direct environmental impact stems primarily from the operations of our branch offices in Hawaii, Guam and Saipan. We strive to manage these offices in an efficient and environmentally sustainable manner, and we continue to find new and innovative ways to reduce our carbon footprint.

The Bank’s headquarters, the tallest building in downtown Honolulu, was built in 1996 to Energy Star standards. Since then, we have made energy-efficient upgrades to our facilities as well as key building systems at our First Hawaiian Bank headquarters, operations facility and branches.

Our current initiatives focus on energy efficiency, limiting paper waste, increasing recycling efforts, advising on sustainable transactions, conserving energy and encouraging employees to use environmentally friendly forms of transportation. We believe supporting the implementation of sustainable practices ultimately serves the long-term interest of our stockholders, our customers, our employees and the communities in which we work and live.