Heritage Insurance Holdings, Inc.

1401 N Westshore Blvd,

Tampa, Florida 33607

April 25, 2025

To Our Stockholders:

On behalf of the Board of Directors and management of Heritage Insurance Holdings, Inc., we cordially invite you to attend the annual meeting of stockholders to be held on Tuesday, June 10, 2025 at 10:00 a.m. (ET). Our annual meeting will be held as a “hybrid meeting” which means that we will host the meeting in person at The Westshore Grand, 4860 W Kennedy Blvd, Tampa, FL 33609 and also enable remote participation, including voting, via the Internet. Accordingly, you will be able to attend the annual meeting virtually and vote and submit questions by visiting meetnow.global/MJJHJNV.

The following pages contain the formal notice of the annual meeting, the proxy statement and the proxy card. Please review this material for information concerning the business to be conducted at the meeting including the nominees for election as directors. You may also find electronic copies of these documents online at http://www.edocumentview.com/HRTG.

The purpose of the meeting is to consider and vote upon proposals to (i) elect seven directors, (ii) ratify the appointment of our independent registered public accounting firm for 2025, (iii) approve, on an advisory basis, the compensation of our named executive officers, (iv) approve an amendment to the Company’s 2023 Omnibus Incentive Plan to increase the number of authorized shares by 1,800,000 shares, and (v) transact such other business as may properly come before the meeting.

Whether or not you plan to attend the meeting, your vote is important. We encourage you to vote in advance of the meeting by telephone, by Internet or by signing, dating and returning your proxy card by mail. You may also vote by attending the meeting in person or virtually at meetnow.global/MJJHJNV. Full instructions for attending the meeting are contained in the proxy statement and in the enclosed proxy card.

Sincerely yours,

Richard Widdicombe

Chairman

We mailed a Notice of Internet Availability of Proxy Materials containing instructions on how to access our proxy statement and annual report on or about April 25, 2025.

This proxy statement and our 2025 Annual Report are available online at

http://www.edocumentview.com/HRTG

NOTICE OF 2024 ANNUAL MEETING

OF STOCKHOLDERS

OF HERITAGE INSURANCE HOLDINGS, INC.

EVEN IF YOU CANNOT ATTEND THE ANNUAL MEETING, PLEASE TAKE THE TIME TO PROMPTLY VOTE YOUR SHARES BY CAREFULLY FOLLOWING THE INSTRUCTIONS ON THE PROXY CARD. IF YOU WISH TO VOTE USING A PAPER PROXY CARD, PLEASE SIGN, DATE AND RETURN THE PROXY CARD IN THE RETURN ENVELOPE PROVIDED AS PROMPTLY AS POSSIBLE. YOU CAN REVOKE YOUR PROXY AT ANY TIME BEFORE IT IS EXERCISED.

Important Notice of Internet Availability of Proxy Materials for the Annual Meeting to be Held on June 10, 2025: The Proxy Statement for the Annual Meeting and the Annual Report on Form 10-K for the fiscal year ended December 31, 2024 are available at http://www.edocumentview.com/HRTG.

PROXY SUMMARY

This summary highlights information contained elsewhere in this proxy statement. This summary does not contain all of the information you should consider, and you should read the entire proxy statement carefully before voting.

Items to be Voted on at the 2025 Annual Meeting of Stockholders

Director Nominees

Shareholder Engagement

In 2024, we continued our proactive shareholder outreach efforts and actively engaged with our institutional investors on a variety of corporate governance matters, including the alignment of our executive compensation program with the interests of our shareholders. We held targeted investor meetings on a variety of these matters, continued our assertive outreach campaign and executed on our strategy to attract new categories of investors to broaden our shareholder base.

Our investor relations efforts have been geared toward invigorating investor interest through strategic engagement, transparent financial communication, and a commitment to keeping investor relations materials current and compelling. We welcome the opportunity to engage with our shareholders on matters important to them and take that feedback into account in our decision making process.

Corporate Governance

We are committed to high standards of ethical and business conduct and strong corporate governance practices. This commitment is highlighted by the practices described below.

2024 Performance Highlights

Proxy Statement for the Annual Meeting of Stockholders of

HERITAGE INSURANCE HOLDINGS, INC.

To Be Held on June 10, 2025

TABLE OF CONTENTS

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HERITAGE INSURANCE HOLDINGS, INC.

1401 N Westshore Blvd,

Tampa, Florida 33607

PROXY STATEMENT

This proxy statement and enclosed proxy card are being furnished commencing on or about April 25, 2025 in connection with the solicitation of proxies by the Board of Directors (the “Board”) of Heritage Insurance Holdings, Inc., a Delaware corporation (the “Company”). We are sending the proxy materials because the Board is seeking your permission (or proxy) to vote your shares at the annual meeting of stockholders on your behalf. This proxy statement presents information that is intended to help you in reaching a decision on voting your shares of common stock. Only common stockholders of record at the close of business on April 16, 2025, the record date, are entitled to notice of, and to vote at, the meeting, with each share entitled to one vote. We have no other voting securities other than our common stock.

Questions and Answers about Voting and the Annual Meeting

When and where is the annual meeting being held?

We will hold the annual meeting on June 10, 2025, at 10:00 a.m. (ET), at The Westshore Grand, 4860 W Kennedy Blvd, Tampa, FL 33609 and also virtually via live audio webcast at meetnow.global/MJJHJNV. You will need the 16-digit control number that appears on your proxy card or the instructions that accompanied your proxy materials to access the meeting virtually.

What if I have trouble accessing the annual meeting virtually?

The virtual meeting platform is fully supported across most internet browsers and devices running the most up-to-date version of applicable software and plugins. Participants should ensure that they have a strong WiFi connection wherever they intend to participate in the meeting. We encourage you to access the meeting prior to the start time. A link on the meeting page will provide further assistance should you need it or you may call 1-888-724-2416.

Who can attend the annual meeting?

Only record holders or beneficial owners (who have obtained a legal proxy) of the Company’s common stock or their proxies may attend the annual meeting.

To attend the annual meeting in person, you must present photo identification, such as a driver’s license. Beneficial owners must also provide evidence of stock holdings, such as a recent brokerage account or bank statement.

To attend and participate in the annual meeting virtually, you will need the 16-digit control number that appears on your proxy card or the instructions that accompanied your proxy materials. If you would like to attend the virtual meeting and you have your control number, please go to meetnow.global/MJJHJNV prior to the start of the meeting to log in. Online access to the webcast will open approximately 30 minutes prior to the start of the annual meeting to allow time for our stockholders to log in and test their devices’ audio system. Beneficial owners will need to register at least three business days prior to the annual meeting in order to attend the meeting virtually. For more instructions, please refer to the section “Annual Meeting Procedures” on page 4.

Do I need to register to attend the annual meeting virtually?

Registration is only required if you are a beneficial owner. For more instructions, please refer to the section “Annual Meeting Procedures” on page 4.

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Can I ask questions at the annual meeting if I attend virtually?

Stockholders who virtually attend the annual meeting will have the ability to submit questions prior to and during the meeting via the annual meeting website at meetnow.global/MJJHJNV. As part of the annual meeting, we will hold a question and answer session, during which we intend to answer questions submitted both virtually and in person during the meeting that are pertinent to the meeting matters, as time permits. Rules for the meeting will be no different than if it was solely an in-person meeting. Professional conduct is appreciated and all question and answer sessions will be conducted at the appropriate time during the meeting. Questions relevant to annual meeting matters will be answered during the meeting, subject to time constraints. To ensure that as many stockholders as possible are able to ask questions during the annual meeting, each stockholder will be permitted no more than two questions. Questions from multiple stockholders on the same topic or that are otherwise related may be grouped, summarized and answered together. Responses to questions relevant to annual meeting matters that are not answered during the meeting will be posted at www.heritagepci.com on the “Investors” page.

Who can vote at the annual meeting?

The record date for the annual meeting is April 16, 2025. You may vote all shares of the Company’s common stock that you own as of the close of business on that date. Each share of common stock entitles you to one vote on each item to be voted on at the annual meeting. Cumulative voting is not permitted. On the record date, 30,993,270 shares of our common stock were outstanding.

Will my vote be disclosed to anyone?

Your vote is confidential and will not be disclosed to any officer, director or employee, except in certain limited circumstances, such as when you request or consent to disclosure.

How can I vote if I am the record holder of my shares?

If your shares of common stock are held in your name, you can vote your shares on items presented at the annual meeting or by proxy in the following ways:

How can I vote if my shares are held beneficially through a broker?

If your shares are held in a stock brokerage account or by a bank or other nominee, you are considered the beneficial owner of shares held in “street name,” and your broker, bank or nominee is considered the stockholder of record with respect to those shares. As the beneficial owner, you can vote in the following two ways:

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If you do not submit voting instructions to your broker, your broker may still be permitted to vote your shares in certain cases. Brokers may vote your shares as described below.

If you want to attend and vote in person at the annual meeting, you must obtain a legal proxy from your broker and present it at the annual meeting along with proper evidence of stock holdings, such as a recent brokerage account or bank statement.

If you want to vote virtually at the annual meeting, you must obtain a legal proxy from your broker and present it by registering at least three business days prior to the meeting date.

For more instructions concerning the registration process, please see the section “Annual Meeting Procedures” on page 4.

What is the quorum required for the meeting to be held?

In order to carry on the business of the meeting, we must have a quorum. This means that stockholders representing a majority of the common stock issued and outstanding as of the record date must be present at the annual meeting, either in person, virtually or by proxy, for there to be a quorum at the annual meeting. Abstentions and broker non-votes are counted as present for purposes of establishing a quorum but broker non-votes are not considered “present” for purposes of voting on non-discretionary items.

Can I change my vote after I return my proxy card?

You can revoke your proxy at any time before your shares are voted by (1) delivering a written revocation notice prior to the annual meeting to Kirk Lusk, Chief Financial Officer, Heritage Insurance Holdings, Inc., 1401 N. Westshore Blvd., Tampa, Florida 33607; (2) submitting a later-dated proxy that we receive no later than the conclusion of voting at the annual meeting; or (3) voting in person or virtually at the annual meeting. Attending the annual meeting does not revoke your proxy unless you vote in person or virtually at the meeting. If your shares are held in street name, you must contact your broker or nominee to change your vote or obtain a legal proxy to vote your shares if you wish to cast your vote in person or virtually at the meeting.

What is the vote required to elect directors?

Directors will be elected by a plurality of the votes present in person, virtually or by proxy and entitled to vote at the annual meeting. A “plurality” means that the individuals who receive the largest number of votes are elected as directors up to the maximum number of directors to be elected at the annual meeting. Abstentions and broker non-votes will have no impact on the election of directors.

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What is the vote required to adopt all other proposals on the agenda?

The ratification of Plante & Moran, PLLC’s appointment as independent registered public accounting firm for fiscal year 2025 and the approval of the amendment to our 2023 Omnibus Incentive Plan each requires the affirmative vote of a majority of the shares of common stock represented at the annual meeting and entitled to vote thereon. Abstentions will have the effect of a vote against the ratification of the appointment of Plante & Moran, PLLC and vote against the approval of the amendment to our 2023 Omnibus Incentive Plan.

Proposal 3 is an advisory vote. This means that while we ask stockholders to approve the resolution regarding Say on Pay, this is not an action that requires stockholder approval. Approval of the Say on Pay proposal requires the affirmative vote of a majority of the shares of common stock represented at the annual meeting and entitled to vote thereon. Abstentions will have the effect of a vote against the approval of the Say on Pay proposal. Although the vote on the proposal is non-binding, our Board and its Compensation Committee will review the results of the vote and take them into account in making determinations concerning executive compensation.

What are the consequences if I choose not to vote on a specific proposal?

You may “withhold” your vote with respect to any nominee in the election of directors and may “abstain” from voting on the other proposals. Shares “abstaining” from voting on any proposal will be counted as present at the annual meeting for purposes of establishing the presence of a quorum. “Withhold” votes with respect to any nominee for director will have no effect on the election of directors. Abstentions will have the effect of a vote against the ratification of the appointment of Plante & Moran, PLLC as independent registered public accounting firm for fiscal year 2025, against the approval of the amendment to the 2023 Omnibus Incentive Plan and against Say on Pay. Broker non-votes will have no effect on the election of directors, approval of the amendment to the 2023 Omnibus Incentive Plan or Say on Pay. There will be no broker non-votes with respect to the ratification of Plante & Moran, PLLC’s appointment as independent registered public accounting firm, as it is a discretionary item.

What happens if additional matters are presented at the annual meeting?

Other than the four proposals described in this proxy statement, we are not aware of any other properly submitted business to be acted upon at the annual meeting. If you grant a proxy, the persons named as proxy holders, Richard Widdicombe and Ernie Garateix, will have the discretion to vote your shares on any additional matters properly presented for a vote at the annual meeting, including matters of which the Company did not receive timely notice. If any of our nominees for director are unavailable or are unable to serve or for good cause will not serve, the persons named as proxy holders will vote your proxy for such other candidate or candidates as may be properly nominated by the Board.

Annual Meeting Procedures

In Person Admission to the Annual Meeting

Only record or beneficial owners of the Company’s common stock or their proxies may attend the annual meeting in person. When you arrive at the annual meeting, you must present photo identification, such as a driver’s license. Beneficial owners must also provide evidence of stock holdings, such as a recent brokerage account or bank statement.

Virtual Admission to the Annual Meeting

Only stockholders of the Company or their duly authorized proxies may virtually attend the annual meeting at meetnow.global/MJJHJNV.

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The meeting will be conducted via live audio webcast. To participate virtually at the annual meeting, stockholders of record will need the 16-digit control number that appears on your proxy card or the instructions that accompanied the proxy materials. If you would like to attend the meeting virtually and you have your control number, please go to meetnow.global/MJJHJNV prior to the start of the meeting to log in. Online access to the webcast will open approximately 30 minutes prior to the start of the annual meeting to allow time for our stockholders to log in and test their devices’ audio system.

Virtual Admission - Beneficial Owners

If your shares are held in a stock brokerage account or by a bank or other nominee, you are considered the beneficial owner of shares held in “street name,” and your broker, bank or nominee is considered the stockholder of record with respect to those shares.

Beneficial owners must register for the annual meeting if they want to attend, ask questions, and/or vote at the annual meeting virtually. They may register to virtually attend the annual meeting in the following two ways:

Requests for advance registration should be directed to Computershare through either of the following methods:

Appraisal Rights

Stockholders do not have appraisal rights under Delaware law in connection with the matters to be voted on at the annual meeting.

Stockholder List

The stockholder list will be available for examination during normal business hours for ten days prior to the annual meeting for any purpose germane to the meeting at our corporate headquarters at 1401 N Westshore Blvd, Tampa, Florida 33607.

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PROPOSALS TO BE VOTED ON

Proposal 1: Election of Directors

The size of the Board is currently set at nine members. Two of our directors, Messrs. Pappas and Walvekar, are not standing for re-election. As a result, at the annual meeting, the stockholders will elect seven directors to serve until the 2026 annual meeting of stockholders or until their respective successors are elected and qualified, at which time the size of the Board will be set at seven members. Any vacancy occurring after the election may be filled by a majority vote of the remaining directors. In accordance with the Company’s Bylaws, a director appointed to fill a vacancy will be appointed to serve until the next annual meeting of stockholders.

Assuming a quorum is present, the seven nominees receiving the highest number of affirmative votes of shares entitled to be voted for them will be elected as directors of the Company. Stockholders are not entitled to cumulate votes in the election of directors. All nominees have consented to serve as directors, if elected. If any nominee is unable or declines to serve as a director at the time of the annual meeting, the proxy holders may vote for any nominee designated by the present Board to fill the vacancy. As of the date of this proxy statement, the Board has no reason to believe that any of the director nominees named herein will be unable or unwilling to serve as a director if elected.

The Company believes that its Board, as a whole, should encompass a range of talent, skill, diversity, experience and expertise enabling it to provide sound guidance with respect to the Company’s operations and interests. In addition to considering a candidate’s background, experience and accomplishments, candidates are reviewed in the context of the current composition of the Board and the evolving needs of our business. Although the Company does not have a formal policy with regard to the consideration of diversity in identifying candidates, the Corporate Governance and Nominating Committee strives to nominate candidates with a variety of complementary skills so that, as a group, the Board will possess the appropriate level of talent, skills and expertise to oversee the Company’s business. The Company regularly assesses the size of the Board, whether any vacancies are expected due to retirement or otherwise, and the need for particular expertise on the Board. The Company’s policy is to have at least a majority of our directors qualify as “independent directors” as defined in the rules of the NYSE. Currently, seven of our nine directors are independent and five of our seven director nominees are independent. See page 24 for a further discussion of director independence.

The Corporate Governance and Nominating Committee seeks candidates with strong experience in areas relevant to the strategy and operations of the Company, particularly in industries and growth segments that the Company serves, as well as key geographic markets where it operates. Each of the director nominees holds or has held senior positions in organizations and has operating experience that meets this objective, as described below. In these positions, they have also gained experience in core management skills, such as strategic and financial planning, financial reporting, risk management and leadership development.

The Corporate Governance and Nominating Committee also believes that the nominees, each of whom is a current director, has the experience, expertise, integrity, sound judgment and ability to engage management in a collaborative fashion to collectively comprise an effective Board. In addition, the Corporate Governance and Nominating Committee believes that each of the nominees is committed to devoting significant time and energy to service on the Board and its committees.

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DIRECTOR NOMINEES

The following provides certain information with respect to our director nominees as of April 16, 2025.

Ernie Garateix. Mr. Garateix has served as our Chief Executive Officer and as a member of our Board since December 2020. Prior to that, he served as our Chief Operating Officer since December 2014. Prior to that, from August 2012 to December 2014, Mr. Garateix served as our Executive Vice President. Prior to joining us, Mr. Garateix served as Vice President for American Integrity Insurance Group beginning in October 2007. Mr. Garateix brings to the Board an in-depth knowledge of the insurance industry gained from his service in senior positions at the Company and his years of leadership experience at insurance carriers.

Richard Widdicombe. Mr. Widdicombe is our Chairman and has served on our Board since we began operations in August 2012, and as our President from August 2012 until December 2020. He was previously our Chief Executive Officer from August 2012 to May 2014. Prior to joining the Company, Mr. Widdicombe served as Risk Manager of Homeowners Choice Property & Casualty Insurance Company (NYSE: HCI) from November 2009 to September 2011. Prior to that, Mr. Widdicombe served as President of People’s Trust Insurance Company from July 2007 to February 2009. Mr. Widdicombe brings to the Board an in-depth knowledge of the insurance industry gained from his years of leadership experience at multiple insurance carriers.

Pete Apostolou. Mr. Apostolou has served on our Board since we began operations in August 2012. Mr. Apostolou is the owner of Central Title Services, which he founded in 2015. He is also a real estate broker and owner of Alexa Realty of St. Petersburg, which he founded in 2004. Mr. Apostolou also serves as a manager and owner of several other commercial real estate companies in the greater Tampa Bay area. Mr. Apostolou brings to the Board an in-depth knowledge of the Florida commercial and residential real estate market.

Irini Barlas. Ms. Barlas brings over two decades of operational and managerial expertise in the financial services sector to our Board, where she has served since August 2014. Ms. Barlas has served in various roles at Megastar Advisors LLC, an insurance marketing organization, including as Chief Financial Officer since January 2014, Chief Talent Officer since June 2024 and Chief Operating Officer from January 2014 through May 2024. From February 2010 through May 2022, Ms. Barlas also served as the Chief Financial Officer of Barlas Tax & Financial Group, LLC, a provider of tax, insurance, and investment services. Prior to this, Ms. Barlas worked as an auditor at Grant Thornton LLP from January 2009 to January 2010. Throughout her tenure, Ms. Barlas has held key management roles. Moreover, Ms. Barlas is a Certified Public Accountant (CPA) with a master’s degree in accounting, and she remains an active member of the American Institute of Certified Public Accountants and the Florida Institute of Certified Public Accountants. Ms. Barlas has a strong operational background and brings to the Board extensive experience in financial statement preparation, reporting, and analysis.

Mark Berset. Mr. Berset has over 50 years of experience in the property and casualty insurance industry. Mr. Berset has served as chief executive officer of Comegys Insurance Agency since 1975, as chief

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executive officer of Alpha Insurance Management since 1993, and as chief executive officer of Strategic Agency Network of Florida, an alliance of national insurance agents, since 1997. Mr. Berset also co-founded Purpose Employer Solutions, a national payroll company, in 2010 and has served as a director since then. Mr. Berset has also co-founded various Florida-based property and casualty insurance companies and served as a board member of United Property & Casualty Insurance Co. until 2007 and Homeowners Choice Insurance until 2014. Mr. Berset serves on BayFirst Financials’ Executive Board as President. Mr. Berset brings to the Board an in-depth knowledge of the insurance industry gained from his years of executive management and leadership experience running insurance agencies and co-founding insurance companies and businesses in related industries.

Joseph Vattamattam. Mr. Vattamattam has served on our Board since April 2014. Mr. Vattamattam is the President of Healthmap Solutions, a specialty population health management company focusing on patients living with kidney disease, amongst other chronic conditions, a position he has held since October 2020. He served as the CEO of Healthmap Solutions from July 2013 to October 2020. Prior to that, Mr. Vattamattam served as Vice President of Medical Economics at CareCentrix, Inc., a provider of home health solutions, from August 2010 to July 2013 and as Area Vice President, Operations from January 2010 to August 2010. Prior to that, Mr. Vattamattam held several positions at WellCare Health Plans, a provider of managed care services, from June 2007 to December 2009, most recently as Director, Health Services. Mr. Vattamattam previously held positions at Wachovia Securities and PricewaterhouseCoopers LLP. Mr. Vattamattam also serves as a Director on the Advent Health Carrollwood Foundation board, a position he has held since January 2020. Mr. Vattamattam brings to the Board executive management and leadership skills, as well as an in-depth knowledge of capital markets and financial analysis.

Paul L. Whiting. Mr. Whiting has served on our Board since March 2023. Mr. Whiting previously served as a member of the board of directors of Sykes Enterprises, Inc. from December 2003 to May 2019 and Teco Energy, Inc from February 2004 until July 2016. Mr. Whiting was President of Seabreeze Holdings, Inc., a privately held investment company from 1967 to December 2023. Mr. Whiting currently is a private investor. Previously, Mr. Whiting held various positions within Spalding & Evenflo Companies, Inc., including Chairman, Chief Executive Officer and Chief Financial Officer. Presently, Mr. Whiting sits on the boards of The Bank of Tampa and The Tampa Bay Banking Co. Mr. Whiting also serves on the boards of various civic organizations, including, among others, Academy Prep Foundation and Academy Prep Centers in the Florida cities of Lakeland, St. Petersburg and Tampa, which are full-scholarship, private college preparatory middle schools for low-income children. Mr. Whiting brings to the Board senior executive management, leadership skills and board oversight experience, including experience with regulated businesses.

Required Vote

Directors are elected by a plurality of the votes of the shares present in person or by proxy and entitled to vote on the election of directors at the annual meeting. The individuals who receive the largest number of votes will be elected as directors up to the maximum number of directors to be elected at the annual meeting.

THE BOARD RECOMMENDS A VOTE “FOR” THE ELECTION OF ALL NOMINEES NAMED ABOVE.

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Proposal 2: Ratification of Appointment of Independent Registered Public Accounting Firm

The Audit Committee is directly responsible for the appointment, compensation, retention and oversight of our independent registered public accounting firm. To execute this responsibility, the Audit Committee engages in a comprehensive evaluation of the independent registered public accounting firm’s qualifications, performance and independence and whether the independent registered public accounting firm should be rotated, and considers the advisability and potential impact of selecting a different independent registered public accounting firm.

Plante & Moran, PLLC (“Plante & Moran”) has served as our independent registered public accounting firm since June 2018 and has been appointed by the Audit Committee to continue as our independent registered public accounting firm for the fiscal year ending December 31, 2025. Although ratification is not required by our Bylaws or otherwise, we are submitting the selection of Plante & Moran to our stockholders for ratification because we value our stockholders’ views on our independent registered public accounting firm and as a matter of good corporate governance. In the event that ratification of this selection is not approved by the affirmative vote of the holders of a majority of the shares of common stock of the Company represented at the annual meeting in person or by proxy and entitled to vote on the item, the Audit Committee and the Board will review the Audit Committee’s future selection of an independent registered public accounting firm but is not bound by the stockholders’ vote. Even if the selection is ratified, the Audit Committee may, in its discretion, direct the appointment of a different independent registered public accounting firm at any time if it determines that a change would be in the best interests of the Company and our stockholders.

Representatives of Plante & Moran are expected to be available at the annual meeting. The representatives will have an opportunity to make a statement and will be available to respond to appropriate questions.

Required Vote

The affirmative vote of the holders of a majority of the Company’s common stock present at the annual meeting virtually or by proxy and entitled to vote on this proposal is required to approve the ratification of the appointment of Plante & Moran as the Company’s independent registered public accounting firm for the current fiscal year.

THE BOARD RECOMMENDS A VOTE “FOR” RATIFICATION OF THE APPOINTMENT OF PLANTE & MORAN, PLLC AS THE COMPANY’S INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR THE FISCAL YEAR ENDING DECEMBER 31, 2025.

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Proposal 3: Advisory Vote on Executive Compensation

We are providing stockholders an advisory vote on executive compensation, or Say on Pay, as required by the Dodd-Frank Act. The Say on Pay vote is a non-binding vote on the compensation of our named executive officers, as described in this proxy statement in the Executive Compensation section beginning on page 30, including the compensation tables and the related narrative disclosure. The Dodd-Frank Act requires us to hold the Say on Pay vote at least once every three years, and the Company has determined to hold the Say on Pay vote every year.

We encourage stockholders to review the Executive Compensation section, including the compensation tables and the related narrative disclosure beginning on page 30 of this proxy statement. As discussed in the Executive Compensation section, we believe that our compensation policies and decisions further our objectives to: (i) reward superior financial and operational performance; (ii) motivate our executive officers to build and grow our business profitably; (iii) align the interests of our executive officers with those of our stockholders; and (iv) enable us to attract, retain and motivate qualified executive officers.

At the 2024 annual meeting, we held our Say on Pay vote and approximately 76% of the votes cast on the proposal were in favor of our named executive officers’ compensation. We continued our shareholder outreach efforts during 2024 and early 2025. The Committee will continue to consider the outcome of say on pay votes when making future compensation decisions for the NEOs.

We believe that our executive compensation program strikes the appropriate balance between utilizing responsible, measured pay practices and effectively incentivizing our executives to dedicate themselves fully to value creation for our stockholders. More information on our executive compensation programs can be found below in the section “Executive Compensation”.

On the basis of the compensation of our named executive officers described in this proxy statement in the Executive Compensation section, including the compensation tables and the related narrative disclosure found within this proxy statement, we are requesting that our stockholders vote on the following resolution:

“RESOLVED, that the stockholders of Heritage Insurance Holdings, Inc. (“Heritage”) approve, on an advisory basis, the compensation of Heritage’s named executive officers, as described in the Executive Compensation section, including the tabular disclosure regarding such compensation and the accompanying narrative disclosure, set forth in Heritage’s 2025 Annual Meeting proxy statement.”

Although this Say on Pay vote on executive compensation is non-binding, the Board and the Compensation Committee will review the results of the vote and will take into account the outcome of the vote when determining future executive compensation arrangements.

Required Vote

The approval of the Say on Pay proposal requires the affirmative vote of a majority of the shares of the Company’s common stock represented at the annual meeting and entitled to vote thereon.

THE BOARD RECOMMENDS A VOTE “FOR” ADOPTION OF THE RESOLUTION APPROVING THE COMPENSATION OF OUR NAMED EXECUTIVE OFFICERS, AS DESCRIBED IN THE EXECUTIVE COMPENSATION SECTION.

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Proposal 4: Amendment to the Company’s 2023 Omnibus Incentive Plan to Increase the Number of Authorized Shares by 1,800,000 Shares

We are asking stockholders to approve an amendment (the “Amendment”) to increase the number of shares available for issuance under the Company’s 2023 Omnibus Incentive Plan (as amended, the “2023 Plan”) by 1,800,000 shares. If the Amendment is approved by our stockholders, the number of shares available for issuance under the 2023 Plan will be 2,050,749 (based on the number of shares available for issuance as of March 31, 2025).

The Board has unanimously approved and recommends that stockholders approve the Amendment. This increase in the number of shares would allow sufficient shares to continue to be available under the 2023 Plan for approximately two additional years. The Board believes that the number of shares that remain available for future issuance will be insufficient to achieve the purposes of the 2023 Plan beyond one year (and perhaps a shorter period) unless the additional shares are authorized and approved by stockholders.

The summary that follows represents the terms of the 2023 Plan in the event the Amendment is approved by our stockholders. The following information regarding the 2023 Plan is being provided to you in connection with the solicitation of proxies for the approval of the Amendment. The following description of the 2023 Plan is a summary only and is qualified in its entirety by reference to the full text of the 2023 Plan, which was filed as Annex A to the Company’s proxy statement for the Company’s 2023 annual meeting filed with the SEC on April 28, 2023, and stockholders are urged to review it together with the following information, which is qualified in its entirety by reference to the full text of the 2023 Plan. Annex A to this proxy statement contains the text of the proposed Amendment. Annex A is incorporated by reference into the following plan summary, which is qualified in its entirety by this reference. Capitalized terms used herein which are not otherwise defined shall have the meaning assigned to such terms in the 2023 Plan, unless clearly stated otherwise.

Highlights of the Plan

If the Amendment is approved, the number of shares of our common stock that will be available for issuance under the 2023 Plan pursuant to any form of equity awards permitted under the 2023 Plan will be equal to (a) 1,800,000 shares of common stock, plus (b) the number of shares of common stock available under the 2023 Plan (which was 250,749 shares as of March 31, 2025) immediately prior to stockholder approval of the Amendment, plus (c) any shares of common stock with respect to awards that were granted under the Heritage Insurance Holdings, Inc. Omnibus Incentive Plan (the “Prior Plan”) or the 2023 Plan that are forfeited or canceled (e.g., due to the recipient’s failure to satisfy applicable service or performance conditions). However, shares of common stock with respect to awards under the 2023 Plan or the Prior Plan that are withheld or tendered or not issued to the participant to satisfy tax withholding obligations or to pay the exercise price of an award under the 2023 Plan or any award under the Prior Plan would not become available for issuance pursuant to the 2023 Plan.

Share Reservation

In its determination to recommend that the Board approve the Amendment, the Committee reviewed the existing terms of outstanding awards under the 2023 Plan, a summary of the 2023 Plan terms and the share usage, overhang and dilution metrics set forth below, as well as market practices and trends and the estimated cost of the additional shares requested by the Amendment. The following table summarizes the number of shares of common stock that were authorized for issuance related to outstanding awards under the 2023 Plan and available for future awards under the 2023 Plan as of March 31, 2025.

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We had 30,993,270 shares outstanding as of April 16, 2025. The aggregate total of 2,189,778 shares subject to outstanding full-value awards or available for future grants under the 2023 Plan represents a fully-diluted overhang of approximately 7.0% of our common stock outstanding as of April 16, 2025. If the Amendment is approved, the 1,800,000 newly authorized shares requested would increase the overhang to approximately 12.1%. Overhang is calculated as the total of (a) shares underlying outstanding awards (which represent unvested shares of time-based and performance-based restricted stock) plus shares available for issuance under future equity awards, divided by (b) the total number of shares outstanding, shares underlying outstanding awards (which already includes the outstanding unvested shares of time-based and performance-based restricted stock) and shares available for issuance under future equity awards. Our Board believes that the proposed share reserve represents a reasonable amount of potential equity dilution to accommodate our long-term strategic and growth priorities.

Share Usage

Our average three-year run rate for 2022, 2023 and 2024 is 1.1%. The run rate for each fiscal year is calculated as the number of shares granted under the 2023 Plan or the Prior Plan, as applicable, including time-based restricted stock and earned performance-based restricted stock, divided by the weighted average common shares outstanding.

Important Governance Features and Practices

The 2023 Plan and our equity grant practices are designed to reflect sound corporate governance practices and protect stockholder interests:

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Summary of the 2023 Plan (as amended by the Amendment)

Administration

The administrator of the 2023 Plan is the Compensation Committee of the Board or such other committee designated by the Board of Directors to administer the 2023 Plan (the “Committee”). Our Chief Executive Officer may act as the administrator with respect to awards granted to employees other than “officers” of the Company (within the meaning of Rule 16a-1 under the Exchange Act). Subject to any limitations contained in the 2023 Plan, the administrator will have the authority to designate those eligible individuals who will become participants and determine the type of awards to be granted to each participant and the number, terms and conditions of such awards, as well as establish, adopt or revise any rules and regulations as it may deem advisable to administer the 2023 Plan.

Subject to the terms of the 2023 Plan, the Committee is authorized to (1) select eligible recipients, (2) determine the terms and conditions of the awards, (3) interpret the 2023 Plan and awards, (4) grant replacement awards in specified circumstances, (5) establish, amend and rescind rules and regulations for its administration, and (6) modify and cancel awards. Any interpretation of the 2023 Plan by the Committee, and any decision made by the Committee under the 2023 Plan, is binding and conclusive on all persons. In no event would the Committee have the power to reprice options or SARs with an exercise price that is less than the original exercise price unless such action is approved by our stockholders, except to the extent such adjustments

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are necessary in connection with certain transactions to maintain the relative proportionate interest the options and SARs represented immediately prior to such transactions and to preserve, without exceeding, the value of such options or SARs.

Eligibility

Any employee or officer of the Company or any of its affiliates, any other service providers, and any individual that has agreed to become an officer or employee, or any non-employee director of the Company is eligible for selection by the Committee to receive awards under and participate in the 2023 Plan. There are currently approximately 540 employees and 7 non-employee directors who will be eligible to participate in the 2023 Plan.

Shares Available for Awards

Subject to adjustment as provided in the 2023 Plan, assuming approval of the Amendment by our stockholders, the aggregate number of shares of our common stock that will be available for issuance under the 2023 Plan pursuant to any form of equity awards permitted under the 2023 Plan will be equal to (a) 1,800,000 shares of common stock, plus (b) the number of shares of common stock available under the 2023 Plan (which was 250,749 shares as of March 31, 2025) immediately prior to stockholder approval of the Amendment, plus (c) any shares of common stock with respect to awards that were granted under the Prior Plan or the 2023 Plan that are forfeited or canceled (e.g., due to the recipient’s failure to satisfy applicable service or performance conditions). Only an amount equal to 1,800,000 shares may be issued upon the exercise of incentive stock options.

If (i) an award under the 2023 Plan or the Prior Plan lapses, expires, terminates or is cancelled without the issuance of shares under such award, (ii) it is determined during or at the conclusion of the term of an award under the 2023 Plan or the Prior Plan that all or some portion of the shares with respect to which the award was granted will not be issuable, (iii) shares subject to an award under the 2023 Plan or the Prior Plan are forfeited or (iv) shares subject to an award under the 2023 Plan or the Prior Plan are reacquired by us pursuant to rights reserved upon the issuance of such shares, then such shares shall be recredited to the 2023 Plan’s reserve and may again be used for new awards. Any such shares recredited under clause (iv) may not, however, be issued pursuant to incentive stock options. However, shares of common stock with respect to awards under the 2023 Plan or the Prior Plan that are withheld or tendered or not issued to the participant to satisfy tax withholding obligations or to pay the exercise price of an award under the 2023 Plan or any award under the Prior Plan would not become available for issuance pursuant to the 2023 Plan.

To the extent the Company is subject to Code Section 162(m) and subject to certain adjustments, the 2023 Plan imposes maximum aggregate limits applicable to awards made to any participant during any fiscal year.

Types of Awards

The Committee may grant the following types of awards to any eligible individual it selects:

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Performance Goals

The Committee is authorized to designate any award granted under the 2023 Plan as a performance award that is contingent on the achievement of performance goals during a performance period as determined by the Committee upon the grant of the performance award. Performance awards may be settled by delivery of cash, shares or any combination thereof, as determined by the Committee.

The Committee may establish the performance measures for awards under the 2023 Plan which may be based on the achievement of one or more of the following criteria for the Company, on a consolidated basis (other than items (1) through (4)), or for any affiliate, or for divisions or business units of the Company or any affiliate: (1) our basic earnings per common share on a consolidated basis; (2) our diluted earnings per common share on a consolidated basis; (3) total stockholder return; (4) fair market value of shares; (5) net sales (6) cost of sales; (7) gross profit; (8) selling, general and administrative expenses; (9) operating income; (10) earnings before interest and the provision for income taxes (EBIT); (11) earnings before interest, the provision for income taxes, depreciation, and amortization (EBITDA); (12) adjusted EBITDA; (13) net operating ratio; (14) gross premiums written; (15) net income; (16) accounts receivable; (17) inventories; (18) trade working capital; (19) return on equity; (20) return on assets; (21) return on invested capital; (22) return on sales; (23) non-catastrophic claims incurred; (24) reinsurance costs; (25) gross premiums earned; (26) economic value added, or other measure of profitability that considers the cost of capital employed; (27) free cash flow; (28) net cash provided by operating activities; (29) net increase (decrease) in cash and cash equivalents; (30) customer satisfaction; (31) market share; and (32) quality.

In addition, the Committee may designate other categories, including categories involving individual performance and subjective targets, not listed above.

Where applicable, the performance goals may be expressed, without limitation, in terms of attaining a specified level of the particular criterion or the attainment of an increase or decrease (expressed as absolute

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numbers, averages and/or percentages) in the particular criterion or achievement in relation to a peer group or other index. The performance goals may include a threshold level of performance below which no payment will be made (or no vesting will occur), levels of performance at which specified payments will be paid (or specified vesting will occur), and a maximum level of performance above which no additional payment will be made (or at which full vesting will occur).

The Committee may adjust the impact of one or more events or occurrences as the Committee determines appropriate, including, without limitation: (i) any gains or losses from the sale of assets outside the ordinary course of business; (ii) any gains or losses from discontinued operations; (iii) any extraordinary gains or losses; (iv) the effects of accounting changes; (v) any unusual, nonrecurring, transition, one-time or similar items or charges; (vi) the diluted impact of goodwill on acquisitions; (vii) and any other items specified by the Committee.

Termination of Employment

Generally, a participant’s employment, retention, change of control, severance or similar agreement with us will control if such agreement discusses the treatment of awards upon a termination of employment. If not otherwise specified in a participant’s award agreement, the following provisions will apply.

If a participant is terminated for cause or due to inimical conduct, all vested and unvested awards are automatically cancelled and forfeited.

All unvested and/or unexercisable stock options, SARs, restricted stock, restricted stock units and deferred stock rights (in each case, other than performance awards) will automatically be cancelled and forfeited upon termination of employment for any reason. If the participant terminates employment due to retirement, death or disability, all vested stock options and SARs will remain exercisable until the earlier of the end of the term of such award or the date that is one year following the date of such termination. The post-termination exercise period for vested stock options and SARs described in the preceding sentence is reduced to 30 days if the participant terminates employment for any reason other than due to retirement, death, disability or for cause or inimical conduct.

Subject to the exceptions described below, all awards other than stock options, SARs, restricted stock, restricted stock units and deferred stock rights will be automatically cancelled and forfeited upon any termination of employment. Upon a termination of employment due to retirement, (i) all performance awards outstanding will be paid in shares of our common stock or cash, as applicable, following the end of the performance period and based on the achievement of the performance goals as though the termination had not occurred, and (ii) all incentive awards shall be cancelled in exchange for a cash payment following the end of the performance period based on the achievement of the performance goals but prorated based on the number of days in the performance period that had passed prior to such termination of employment. Upon a termination of employment due to death or disability, (i) all performance awards outstanding will be paid in shares of our common stock or cash, as applicable, following the end of the performance period and based on the achievement of the performance goals as though the termination had not occurred, but prorated based on the number of days in the performance period that had passed prior to such termination of employment, and (ii) all incentive awards shall be cancelled in exchange for a cash payment following the end of the performance period based on the achievement of the performance goals but prorated based on the number of days in the performance period that had passed prior to such termination of employment.

Limitations on Transfer

No award (other than unrestricted shares) will be assignable or transferable by a participant other than by will or the laws of descent and distribution, unless and to the extent the Committee allows a participant to designate, in writing, a beneficiary to exercise the award after the participant’s death or to transfer an award.

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Treatment of Awards upon a Change of Control

Generally, a participant’s employment, retention, change of control, severance or similar agreement with us, if applicable, will control if such agreement discusses the treatment of awards upon a Change of Control. If not otherwise specified in a participant’s award agreement or by the Committee prior to the Change of Control, the following provisions will apply.

Upon a Change of Control, the successor entity in the transaction may assume all of our outstanding awards or replace such awards with similar awards. However, to the extent awards are not assumed or replaced, then all outstanding stock-based awards will vest immediately prior to the date of the Change of Control and (unless otherwise determined by the Committee) (i) all stock options and SARs will be cancelled and paid out in cash and (ii) all earned but unpaid performance and incentive awards would be cancelled in exchange for a cash payment based on the maximum value payable to the participant under such award, but prorated based on the number of days in the performance period that had passed prior to such Change of Control.

If a participant who receives a replacement award by the successor entity in the transaction is terminated without cause (or the participant terminates employment for “good reason” under an agreement with us that contemplates such termination) within twelve months following a Change of Control, then the participant’s awards will be vested in full, or on a prorated basis if the award is subject to the attainment of performance goals (based on the maximum value payable to the participant under such award) and shall be cancelled in exchange for shares of the successor entity’s common stock or other securities or a cash payment to the participant.

The term “Change of Control” is defined in the 2023 Plan to mean the first to occur of any one of the following events:

(i) The acquisition by any Person of beneficial ownership (within the meaning of Rule 13d-3 promulgated under the Exchange Act) of 50% or more of either (A) the then-outstanding Shares (the “Outstanding Company Common Stock”) or (B) the combined voting power of the then-outstanding voting securities of the Company entitled to vote generally in the election of directors (the “Outstanding Company Voting Securities”); provided, however, that the following acquisitions shall not constitute a Change of Control: (1) any acquisition directly from the Company, (2) any acquisition by the Company, (3) any acquisition by any employee benefit plan (or related trust) sponsored or maintained by the Company or any Affiliate of the Company (as defined below) or (4) any acquisition by any corporation pursuant to a transaction that complies with Sections 2(h)(iii)(A) - 2(h)(iii)(C) of the 2023 Plan;

(ii) Any time at which individuals who, as of the date hereof, constitute the Board (the “Incumbent Board”) cease for any reason to constitute at least a majority of the Board; provided, however, that any individual becoming a director subsequent to the date hereof whose election, or nomination for election by the Company’s stockholders, was approved by a vote of at least a majority of the directors then comprising the Incumbent Board shall be considered as though such individual were a member of the Incumbent Board, but excluding, for this purpose, any such individual whose initial assumption of office occurs as a result of an actual or threatened election contest with respect to the election or removal of directors or other actual or threatened solicitation of proxies or consents by or on behalf of a Person other than the Board;

(iii) Consummation of a reorganization, merger, statutory share exchange or consolidation or similar corporate transaction involving the Company or any of its subsidiaries, a sale or other disposition of all or substantially all of the assets of the Company, or the acquisition of assets or stock of another entity by the Company or any of its subsidiaries (each, a “Business Combination”), in each case unless, following such Business Combination, (A) all or substantially all of the individuals and entities that were the beneficial owners of the Outstanding Company Common Stock and the Outstanding Company Voting Securities immediately prior to such Business Combination beneficially own, directly or indirectly, more than 50% of the then-outstanding shares of common stock and the combined voting power of the then outstanding voting securities entitled to vote generally in the election of directors, as the case may be, of the corporation resulting from such Business

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Combination (including, without limitation, a corporation that, as a result of such transaction, owns the Company or all or substantially all of the Company’s assets either directly or through one or more subsidiaries) in substantially the same proportions as their ownership immediately prior to such Business Combination of the Outstanding Company Common Stock and the Outstanding Company Voting Securities, as the case may be, (B) no Person (excluding any corporation resulting from such Business Combination or any employee benefit plan (or related trust) of the Company, or an Affiliate of the Company or such corporation resulting from such Business Combination) beneficially owns, directly or indirectly, more than 50% of, respectively, the then-outstanding shares of common stock of the corporation resulting from such Business Combination or the combined voting power of the then-outstanding voting securities of such corporation, except to the extent that such ownership existed prior to the Business Combination, and (C) at least a majority of the members of the board of directors of the corporation resulting from such Business Combination were members of the Incumbent Board at the time of the execution of the initial agreement or of the action of the Board providing for such Business Combination; or

(iv) Approval by the stockholders of the Company of a complete liquidation or dissolution of the Company.

Notwithstanding the foregoing, for purposes of an Award that provides for the payment of deferred compensation that is subject to Code Section 409A, the definition of Change of Control herein shall be deemed amended to conform to the requirements of Code Section 409A to the extent necessary for the Award to comply with Code Section 409A.

For purposes of determining whether a participant’s employment with the Company and its affiliates is terminated without “Cause” under the 2023 Plan, the term “Cause” shall mean conduct involving one or more of the following: (i) the substantial and continuing failure of the Participant, after notice thereof, to render services to the Company in accordance with the terms or requirements of his or her employment; (ii) disloyalty, gross negligence, willful misconduct, dishonesty, fraud or breach of fiduciary duty to the Company; (iii) deliberate disregard of the rules or policies of the Company, or breach of an employment or other agreement with the Company, which results in directs in direct or indirect loss, damage or injury to the Company; (iv) the unauthorized disclosure of any trade secret or confidential information of the Company; (v) the Participant’s conviction for a felony, as evidenced by a binding and final judgment, order or decree of a court of competent jurisdiction; or (vi) the commission of an act which constitutes unfair competition with the Company or which induces any customer or supplier to breach a contract with the Company; or (vii) any conduct constituting “cause” as such term may be defined in the Participant’s employment or service agreement with the Company.

The good faith determination by the Committee of whether the participant’s employment or service was terminated for Cause is final and binding for all purposes.

Adjustments

In the event we enter into a transaction that causes the per-share value of the common stock to change (including, without limitation, any stock dividend, stock split, spin-off, rights offering or large nonrecurring cash dividend), the Committee will make such adjustments to the number and type of shares subject to the 2023 Plan and outstanding awards, the grant, purchase or exercise price with respect to any award or the performance goals of an award as the Committee may deem equitable to prevent dilution or enlargement of the benefits or potential benefits intended to be made available under the 2023 Plan.

In no event, however, may we, the Committee or any other person amend an option or SAR to reduce the exercise or grant price, cancel an option or SAR in exchange for a similar award with a lower exercise or grant price, or cancel an out-of-the-money option or SAR for a cash payment or other consideration, except to the extent such adjustments are necessary in connection with any transaction described above to maintain the relative proportionate interest the options and SARs represented immediately prior to any such transaction and to preserve, without exceeding, the value of such options or SARs.

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Termination and Amendment

The Committee may, at any time and from time to time, terminate or amend the 2023 Plan, but an amendment will require stockholder approval if (i) it is required by the Exchange Act, the listing requirements of any principal securities exchange or market on which our shares of common stock are then traded, or any applicable law; or (ii) the amendment increases the number of shares reserved under the 2023 Plan or the individual participant share or payment limits set forth in the 2023 Plan, expands the group of individuals that may become participants, or diminishes the protections afforded by the anti-repricing provisions of the 2023 Plan.

In no event, however, may we, the Committee or any other person amend an option or SAR to reduce the exercise or grant price, cancel an option or SAR in exchange for a similar award with a lower exercise or grant price, or cancel an out-of-the-money option or SAR for a cash payment or other consideration, except to the extent such adjustments are necessary in connection with certain transactions to maintain the relative proportionate interest the options and SARs represented immediately prior to any such transaction and to preserve, without exceeding, the value of such options or SARs.

U.S. Federal Income Tax Consequences of Awards

The following summarizes the consequences under existing U.S. federal income tax rules of awards under the 2023 Plan.

Incentive Stock Options. Incentive stock options (“ISOs”) are intended to qualify as “incentive stock options” under Section 422 of the Code. We understand that under current federal income tax law:

Nonqualified Stock Options. “Nonqualified” stock options are stock options that do not qualify as ISOs. We understand that under existing U.S. federal income tax law:

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Stock-Based Awards. We understand that under existing U.S. federal income tax law:

Stock Appreciation Rights. We understand that under existing U.S. federal income tax law:

Section 409A. If any award constitutes a “non-qualified deferred compensation plan” under Section 409A of the Code (a “Section 409A Plan”), then the award is subject to certain additional requirements discussed in the 2023 Plan, if and to the extent required to comply with Section 409A of the Code. Any award agreement for any award that the Committee believes may constitute a Section 409A Plan, and the provisions of the 2023 Plan applicable to that award, is construed in a manner consistent with the applicable requirements of Section 409A, and the Committee, in its sole discretion and without the participant’s consent, may amend any award agreement (and the provisions of the 2023 Plan applicable thereto) if and to the extent that the Committee determines that such amendment is necessary or appropriate to comply with the requirements of Section 409A of the Code. In the event of a Change of Control, any outstanding awards that constitute deferred compensation is paid in accordance with Section 409A of the Code. If any award agreement or award is deemed not to comply with Section 409A of the Code, then neither the Company, the Committee nor its or their designees or agents is liable to any participant or other person for actions, decisions or determinations made in good faith.

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Importance of Consulting Tax Adviser. The information set forth above is a summary only and does not purport to be complete. It is for general information only and is not intended or written to be used as tax advice. It is based on the U.S. federal income tax laws currently in effect and does not address state, local or foreign tax consequences. This summary also does not purport to deal with all material aspects of U.S. federal taxation that may be relevant to a participant’s personal investment circumstances and does not discuss the tax consequences of those participants who are subject to special treatment under any country’s income tax laws. Participants are strongly urged to consult with their tax advisor regarding the specific tax consequences (including the federal, state, local and foreign tax consequences) that may affect participants in the 2023 Plan and of potential changes in applicable tax laws.

New Plan Benefits Table

Awards under the 2023 Plan will be made at the Board’s or Committee’s discretion, as applicable, based on a number of factors. Therefore, the benefits and amounts that would be received or allocated under the 2023 Plan are not determinable at this time. However, please refer to the Summary Compensation Table, which includes certain information regarding awards granted to our NEOs during the fiscal year ended December 31, 2024. Equity grants to our non-employee directors are described under “Director Compensation.”

Resolution

We are requesting that our stockholders vote on the following resolution to approve the 2023 Omnibus Incentive Plan described in this proxy statement:

“RESOLVED, that the stockholders of Heritage Insurance Holdings, Inc. (“Heritage”) approve the amendment to the Heritage Insurance Holdings, Inc. 2023 Omnibus Incentive Plan as set forth in Annex A to Heritage’s 2025 Annual Meeting proxy statement.”

Required Vote

The approval of the Amendment to the Company’s 2023 Omnibus Incentive Plan proposal requires the affirmative vote of a majority of the shares present in person or by proxy and entitled to vote thereon at the annual meeting.

THE BOARD RECOMMENDS A VOTE “FOR” THE APPROVAL OF THE AMENDMENT TO THE COMPANY’S 2023 OMNIBUS INCENTIVE PLAN.

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BOARD OF DIRECTORS AND CORPORATE GOVERNANCE

Board Leadership Structure

The Board maintains flexibility to determine the appropriate leadership structure for the Company and whether the roles of Chairman of the Board and CEO should be filled by the same or different individuals. This approach allows the Board flexibility to determine whether the two roles should be separate or combined, based upon the Company’s best interests in light of the dynamic environment in which it operates, the Board’s assessment of the Board’s leadership, and the Company’s needs from time to time. Currently, the offices of the Chief Executive Officer and Chairman of the Board are separated. The Board considered that separating these offices would allow the CEO to focus on the strategic direction of the Company and the day to day leadership and performance of the Company, while allowing for the Chairman to provide guidance to the CEO, set the agenda for the Board meetings and preside over meetings of the Board.

Board of Directors Role in Risk Oversight

Our Board oversees the risk management activities designed and implemented by our management. The Board executes its oversight responsibility for risk management both directly and through its committees. The full Board also considers specific risk topics, including risks associated with our strategic plan, business operations and capital structure. In addition, the Board receives regular reports from members of our senior management and other personnel that include assessments and potential mitigation of the risks and exposures involved with their respective areas of responsibility.

Our Board has delegated to the Audit Committee oversight of our risk management process. Our other Board committees also consider and address risk as they perform their respective committee responsibilities. All committees report to the full Board as appropriate, including when a matter rises to the level of a material or enterprise level risk.

Meetings and Committees of the Board of Directors

During 2024, the Board held five meetings. During 2024, except for Mr. Walvekar (who is not standing for re-election), each director attended at least 75% of the aggregate of (i) the total number of meetings of the Board held during the period in which he or she was a director and (ii) the total number of meetings held by all of the committees of the Board on which he or she served. The Board has a standing Audit Committee, Compensation Committee and Corporate Governance and Nominating Committee which operate under written charters adopted by the Board.

At the Board meetings, non-management directors of the Company meet regularly in executive session without management in accordance with NYSE listing standards. Generally, executive sessions are held in conjunction with regularly scheduled meetings of the Board. Mr. Widdicombe presided over executive sessions of the Board during 2024. In 2024, the non-management directors met in executive session four times. At each executive session, a presiding non-management director chosen by a majority of the directors present presides over the session.

Audit Committee. Ms. Barlas and Messrs. Vattamattam, Walvekar and Whiting currently serve on the Audit Committee. Ms. Barlas serves as the chair of the Audit Committee and, subject to her re-election, the Board has selected Ms. Barlas to continue as chair of the Audit Committee. Mr. Walvekar is not standing for re-election and as such, will no longer be a member of the Audit Committee following the meeting. The Audit Committee is composed of non-employee directors, each of whom is independent under Rule 10A-3 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and the applicable listing standards of the NYSE. The Board has determined that each of Ms. Barlas and Messrs. Vattamattam and Whiting meets the requirements of an audit committee financial expert under SEC rules. During 2024, the Audit Committee held four meetings.

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The Audit Committee is responsible for, among other things, assisting the Board in its oversight of:

Compensation Committee. Messrs. Pappas, Vattamattam and Whiting and Ms. Barlas currently serve on the Compensation Committee. Mr. Whiting serves as the chair of the Compensation Committee, and subject to his election, the Board has selected Mr. Whiting to continue as chair of the Compensation Committee. Mr. Pappas is not standing for re-election and as such, will no longer be a member of the Compensation Committee following the meeting. The Compensation Committee is composed of non-employee directors, each of whom is independent as required by the applicable listing standards of the NYSE, including the heightened independence requirements specific to compensation committee members. During 2024, the Compensation Committee held four meetings.

The Compensation Committee is responsible for, among other things:

Compensation Committee Interlocks and Insider Participation. None of the members of the Compensation Committee was at any time during 2024 or at any other time an officer or employee of our Company. None of our executive officers serves as a member of the board of directors or compensation committee of any other entity that has one or more executive officers serving as a member of our Board or Compensation Committee.

Corporate Governance and Nominating Committee. Messrs. Apostolou, Pappas, Walvekar, Whiting, and Widdicombe currently serve on the Corporate Governance and Nominating Committee. Mr. Widdicombe currently serves as the chair of the Corporate Governance and Nominating Committee effective as of March 11, 2025, prior to March 11, 2025, Mr. Pappas served as the chair of the Corporate Governance and Nominating Committee. Messrs. Pappas and Walvekar are not standing for re-election and as such, will no longer be members of the Corporate Governance and Nominating Committee following the meeting. The Corporate Governance and Nominating Committee is composed of non-employee directors, each of whom is independent as required by the applicable listing standards of the NYSE. During 2024, the Corporate Governance and Nominating Committee held four meetings.

The Corporate Governance and Nominating Committee is responsible for, among other things:

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In evaluating and determining whether to nominate a candidate for a position on our Board, the Corporate Governance and Nominating Committee will consider the candidate’s professional ethics and values, relevant management experience and a commitment to enhancing stockholder value. The Board regularly assesses its size, whether any vacancies are expected due to retirement or otherwise, and the need for particular expertise on the Board. Candidates may come to the attention of the Corporate Governance and Nominating Committee from current Board members, stockholders, professional search firms, officers or other persons. The Corporate Governance and Nominating Committee will review all candidates in the same manner regardless of the source of recommendation, including from stockholders.

The Corporate Governance and Nominating Committee will consider stockholder recommendations of candidates when the recommendations are properly submitted in accordance with our Bylaws. Any stockholder recommendations which are submitted under the criteria summarized above should include the candidate’s name and qualifications for Board membership and should be addressed to our Corporate Secretary.

For purposes of potential nominees to be considered at the 2026 annual stockholders’ meeting, the Corporate Secretary must receive this information during the timeframe described under the heading “Stockholder Proposals for the 2026 Annual Meeting”, in accordance with the procedures in the Bylaws. The notice must set forth the candidate’s name, age, business address, residence address, principal occupation or employment, the number of shares beneficially owned by the candidate and information that would be required to solicit a proxy under federal securities law. In addition, the notice must include the stockholder’s name, address and the number of shares beneficially owned (and the period they have been held).

In 2024, we did not engage a third party to identify, evaluate or assist in identifying potential nominees for director.

Director Independence

There are no family relationships among any of our executive officers or directors. Our Board has affirmatively determined that each of Messrs. Apostolou, Pappas, Vattamattam, Walvekar, Whiting and Widdicombe and Ms. Barlas is an “independent director,” as defined under the rules of the NYSE. In making the independence determination, the Board considered the current and prior relationships that each non-employee director has with the Company and all other facts and circumstances that the Board deemed relevant. Mr. Garateix is not independent as he is our Chief Executive Officer. With respect to Mr. Berset, the Board does not consider him to be independent given his affiliation with a third-party insurance agency that has provided services to, and received payments from, the Company. With respect to Mr. Widdicombe, the Board considered the consulting services provided by Mr. Widdicombe to the Company, as described in the section “Director Compensation” in determining his independence.

Code of Business Conduct and Ethics

We have adopted a Code of Business Conduct and Ethics (the “Code of Ethics”) that applies to all of our employees, including our Chief Executive Officer (“CEO”), our Chief Financial Officer (“CFO”) and our Chief Accounting Officer. The Code of Ethics is available at www.heritagepci.com on the “Investors” page listed as “Governance Documents” under the heading “Corporate Governance.”

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Only the Board or an appointed committee may grant a waiver of the Code of Ethics for our executive officers or directors, and any such waiver will be disclosed to the extent required by law or the listing requirements of the NYSE. We intend to provide disclosure of any amendments or waivers of our Code of Ethics on our website within four business days following the date of the amendment or waiver.

Governance Documents

Current copies of the Company’s Audit Committee, Compensation Committee and Corporate Governance and Nominating Committee charters are available at www.heritagepci.com on the “Investors” page listed as “Governance Documents” under the heading “Corporate Governance.” In addition, the Board has adopted corporate governance guidelines, which are available on that same page. Information on, or accessible through, our website is not a part of, or incorporated by reference into, this proxy statement.

Communications with Directors

The Board has established a process to receive communications from stockholders and other interested parties. Stockholders and other interested parties may contact any member (or all members) of the Board, or the non-management directors as a group, any Board committee or any chair of any such committee by mail. To communicate with the Board, any individual directors or any group or committee of directors, correspondence should be addressed to the Board or any such individual directors or group or committee of directors by either name or title. All such correspondence should be sent c/o Kirk Lusk, Chief Financial Officer, Heritage Insurance Holdings, 1401 N. Westshore Blvd., Tampa, FL 33607.

All communications received as set forth in the preceding paragraph will be opened by the Corporate Secretary for the sole purpose of determining whether the contents represent a message to our directors. The Corporate Secretary will forward copies of all correspondence that, in the opinion of the Corporate Secretary, deals with the functions of the Board or its committees or that he otherwise determines requires the attention of any member, group or committee of the Board.

Attendance at Annual Meeting

Directors are encouraged, but not required, to attend our annual stockholders’ meeting. In 2024, four directors attended the annual stockholders’ meeting.

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EXECUTIVE OFFICERS

The names of the executive officers of the Company and their ages as of April 16, 2025, titles and biographies are set forth below.

Ernie Garateix, 53, is being nominated for the position of director of the Company. See “Director Nominees” for a discussion of Mr. Garateix’s business experience.

Kirk Lusk, 64, has served as our Chief Financial Officer since April 2018 and served as our Co-Chief Financial Officer from January 2018 to that date. Prior to joining us, from January 2013 to February 2018, Mr. Lusk served as Chief Financial Officer of Narragansett Bay Insurance Company (“NBIC”), which was acquired by us in November 2017 in connection with the acquisition of NBIC Holdings, Inc., the parent company of NBIC. Prior to that, Mr. Lusk served as International Chief Financial Officer of Aetna, Inc. from 2008 through 2012, Chief Financial Officer of Alea Group Holdings Bermuda Ltd. from 2005 through 2008 and Chief Financial Officer of GE ERC’s Global Casualty and GE Capital Auto Warranty Services from 1998 through 2004.

Sharon Binnun, 63, has served as our Chief Accounting Officer since May 2016. Prior to that, she served as our Executive Vice President of Finance beginning in November 2014. Prior to joining us, Ms. Binnun served as the Executive Vice President of Cypress Property Insurance Company from July 2013 to August 2014. Prior to that, Ms. Binnun served as the Chief Financial Officer of Citizens Property Insurance Corporation from February 2007 to July 2013. Ms. Binnun’s prior employment includes Deputy Insurance Commissioner in Florida as well as a career at Deloitte & Touche. Ms. Binnun is a certified public accountant in the State of Florida.

Tim Moura, 52, has served as the President of our subsidiary company, NBIC, since January 2018. Prior to joining us, from February 2014 to January 2018, Mr. Moura served as Senior Vice President of NBIC, which we acquired in November 2017. Prior to that, Mr. Moura served as Vice President of Tower Group Companies from 2010 through 2013, Regional Vice President for OneBeacon Insurance Group from 2004 to 2006 and in various management roles at MetLife Auto & Home from 1995 to 2004. Mr. Moura has over 25 years of industry experience, serving in leadership positions with both national and regional insurance carriers.

Tim Johns, 69, has served as the President of our subsidiary company, Zephyr Insurance Company, since April 2018. Prior to joining us, from June 2011 to July 2017, Mr. Johns served as a health insurance executive, including as Executive Vice President and Chief Consumer Officer, of Hawaii Medical Service Association (Blue Cross Blue Shield of Hawaii). Mr. Johns has also served as a director of Hawaiian Electric Co., Inc. since February 2005 and as trustee and/or director of private real estate-related organizations and non-profit and charitable foundations.

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STOCK OWNERSHIP

Security Ownership of Certain Beneficial Owners and Management

The following table sets forth certain information regarding the beneficial ownership of our common stock as of April 16, 2025 (except as indicated below) by:

Unless otherwise indicated, the address of each beneficial owner listed below is c/o Heritage Insurance Holdings, Inc., 21401 N Westshore Blvd, Tampa, Florida 33607.

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Delinquent Section 16(a) Reports

Section 16(a) of the Exchange Act requires our directors, executive officers and holders of more than 10% of our common stock to file with the SEC reports regarding their ownership and changes in ownership of our common stock. They are also required to provide us with copies of any forms they file.

Based solely on our review of the reports furnished to us, we believe that during the last fiscal year, all reports filed by our directors and executive officers under Section 16(a) were made timely, except that Forms 4s to report four transactions in 2024 for Mr. Pappas were not timely filed.

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EXECUTIVE COMPENSATION

As a “smaller reporting company” we have opted to comply with the executive compensation disclosure rules applicable to smaller reporting companies as such term is defined in the rules promulgated under the Securities Act, which requires compensation disclosure for its principal executive officer and its two other most highly compensated executive officers.

This section discusses the material components of the executive compensation program offered to the executive officers of the Company who are our “named executive officers” for 2024. Such executive officers consist of the following persons, referred to herein as our named executive officers, or the “NEOs”:

2024 Performance Highlights

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Say on Pay Vote and Shareholder Engagement

In 2024, we continued our proactive shareholder outreach efforts and actively engaged with our institutional investors on a variety of corporate governance matters, including alignment of our executive compensation program with the interests of our shareholders. We held targeted investor meetings on a variety of these matters, continued our assertive outreach campaign and executed on our strategy to attract new categories of investors to broaden our shareholder base.

Our investor relations efforts have been geared toward invigorating investor interest through strategic engagement, transparent financial communication, and a commitment to keeping investor relations materials current and compelling. We welcome the opportunity to engage with our shareholders on matters important to them and take that feedback into account in our decision making process.

Independent Compensation Consultant

The Compensation Committee has the authority, pursuant to its charter, to retain outside advisors in its sole discretion. For 2024, the Compensation Committee again selected and retained Pay Governance, a nationally recognized independent consulting firm, to review and provide independent analysis and recommendations to the Compensation Committee regarding the compensation to our NEOs based on their experience and relevant competitive market data. Pay Governance did not perform any services for us other than their services to the Compensation Committee. The Compensation Committee reviewed the independence of Pay Governance and has concluded that its work for the Compensation Committee during 2024 did not raise any conflict of interest that would prevent Pay Governance from independently advising the Compensation Committee.

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Summary Compensation Table

The following Summary Compensation Table discloses the compensation information of our NEOs for our 2024 fiscal year. Certain information regarding 2024 compensation is provided in the narrative sections following the Summary Compensation Table.

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Outstanding Equity Awards at Fiscal Year-End

The following table provides information concerning unvested time-based and performance-based restricted stock for each named executive officer outstanding as of the end of the fiscal year ended December 31, 2024. Each restricted stock grant is shown separately for each named executive officer.

All awards reported in the table above were granted under the 2023 Omnibus Incentive Plan (the “Omnibus Incentive Plan”).

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Executive Compensation Program and Decisions

The following discusses our executive compensation program, which is based substantially on the terms of each named executive officer’s employment agreement, and the executive compensation decisions made for 2024.

Base Salary

We provide base salaries, which are intended to be generally competitive with salaries of similarly-situated executives at comparable companies and are based on the executive officer’s role and responsibilities, individual job performance and experience. The base salaries for our named executive officers were initially set pursuant to their respective employment agreements.

The following table shows the 2024 base salary for each of our named executive officers:

Annual Cash Incentive Award

Annual cash incentive awards are performance-based and designed to motivate and reward eligible employees who contribute positively towards our growth and business strategy. Pursuant to their employment agreements, for 2024, each of our NEOs was entitled to an annual cash incentive, as described below. Annual cash incentive awards are paid based on the performance criteria measured over a single calendar year.

For Mr. Garateix, the performance criteria, targets and actual performance for 2024, and the payouts as a percentage of target for such performance, were as follows:

For Mr. Lusk, the performance criteria, targets and actual performance for 2024, and the payouts as a percentage of target for such performance, were as follows:

For Mr. Moura, the performance criteria, targets and actual performance for 2024, and the payouts as a percentage of target for such performance, were as follows:

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The following table shows the 2024 annual cash incentive awards, including the threshold, target and maximum potential payouts under those awards, and the actual payout amount, for each of our named executive officers.

Long-Term Equity Awards

Our long-term incentive plan consists of two components: (i) annual grants of time-based restricted stock that vests in one-third annual installments, beginning with the end of the grant year and (ii) annual grants of performance-based restricted stock that vest following the conclusion of the three-year performance period. Our long-term incentive plan is designed to motivate and reward long term growth and business strategy.

Pursuant to their employment agreements, for 2024 each of our NEOs was entitled to an annual grant of time-based restricted stock and an annual grant of performance-based restricted stock. The performance criteria for the 2024 awards was weighted 50% based on our 3-year adjusted book value per share growth, which excludes cumulative dividends declared and accumulated other comprehensive income, and 50% based on our three-year total shareholder return, measured over the performance period of January 1, 2024 through December 31, 2026. The performance-based restricted stock awards are subject to the terms and conditions of an award agreement between the Company and the executive and subject to the terms and conditions of the Omnibus Incentive Plan or any other equity incentive plan approved and adopted by the Board under which the restricted stock is issued.

Time-Based Restricted Stock

The following table shows the grant date fair value of the 2024 annual grants of time-based restricted stock for each of our named executive officers.

Performance-Based Restricted Stock

The following table shows the grant date fair value of the 2024 annual grants of performance-based restricted stock, including the threshold, target and maximum potential payouts under those awards, for each of our named executive officers.

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DIRECTOR COMPENSATION

The following table summarizes the annual compensation for our non-employee directors during 2024, pursuant to our non-employee director compensation policy. For 2024, pursuant to our non-employee director compensation policy, each non-employee director is entitled to an annual cash retainer of $125,000 and an annual grant of restricted stock with a value of $40,000 as of the grant date which shares will vest on the earlier of the one-year anniversary of the grant date and the day immediately prior to the next annual meeting of stockholders. In addition, (i) each member of a committee of the Board is entitled to an additional annual cash retainer of $2,500, (ii) each chair of a committee of the Board is entitled to an additional $5,000 annual cash retainer and (iii) the chair of the Board, to the extent the chair is a non-employee director, is entitled to an additional annual cash retainer of $20,000.

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AUDIT COMMITTEE REPORT

The Audit Committee of the Board consists of four non-employee directors, Irini Barlas, Joseph Vattamattam, Vijay Walvekar and Paul Whiting, each of whom the Board has determined to be an independent director as defined in the rules of the NYSE. The Audit Committee is a standing committee of the Board and operates under a written charter adopted by the Board, which is available at www.heritagepci.com on the “Investors” page listed as “Governance Documents” under the heading “Corporate Governance.” Among its other functions, the Audit Committee has the authority and responsibility to retain and terminate the engagement of the Company’s independent registered public accounting firm (the “independent auditors”).

Management is responsible for the Company’s internal controls and the financial reporting process. The independent auditors are responsible for performing an independent audit of the Company’s consolidated financial statements in accordance with the auditing standards of the Public Company Accounting Oversight Board (United States) and to issue a report thereon. The Audit Committee’s responsibility is to monitor and oversee these processes.

During 2024, at each of its meetings, the Audit Committee met with the senior members of the Company’s financial management team and the independent auditors. The Audit Committee’s agenda is established by the Audit Committee’s chair and senior members of the Company’s financial management team. The Audit Committee met in private sessions with the Company’s independent auditors at each of its meetings, and also separately with the Company’s head of internal audit, without management representation, to discuss financial management, accounting and internal control matters. The Audit Committee has reviewed and discussed with management and the independent auditors the audited consolidated financial statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, including a discussion of the quality, not just the acceptability, of the accounting principles, the reasonableness of significant judgments and the clarity of disclosures in the consolidated financial statements. Management represented to the Audit Committee that the Company’s consolidated financial statements were prepared in accordance with generally accepted accounting principles. The Audit Committee discussed with the independent auditors those matters required to be discussed by the auditors under the rules adopted by the Public Company Accounting Oversight Board.

The Company’s independent auditors also provided to the Audit Committee the written disclosures and the letter required by the applicable requirements of the Public Company Accounting Oversight Board regarding the independent accountant’s communications with the Audit Committee concerning independence. The Audit Committee discussed with the independent auditors that firm’s independence and considered whether the non-audit services provided by the independent auditors are compatible with maintaining their independence.

Based on the Audit Committee’s discussion with management and the independent auditors, and the Audit Committee’s review of the representation of management and the report of the independent auditors to the Audit Committee, the Audit Committee recommended that the Board include the audited consolidated financial statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024.

Notwithstanding anything to the contrary set forth in any of our previous filings under the Securities Act of 1933, as amended, or the Exchange Act that might incorporate future filings, including this proxy statement, in whole or in part, the Audit Committee Report above shall not be incorporated by reference into this proxy statement.

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FEES BILLED FOR SERVICES RENDERED BY INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The approximate fees billed by Plante & Moran for 2024 and 2023 are set forth below:

The Audit Committee has adopted certain policies and procedures regarding permitted audit and non-audit services and the annual pre-approval of such services. Each year, the Audit Committee will ratify the types of audit and non-audit services of which management may wish to avail itself, subject to pre-approval of specific services. Each year, management and the independent registered public accounting firm will jointly submit a pre-approval request, which will list each known and/or anticipated audit and non-audit services for the upcoming calendar year and which will include associated budgeted fees. The Audit Committee will review the requests and approve a list of annual pre-approved non-audit services. Any additional interim requests for additional non-audit services that were not contained in the annual pre-approval request will be approved during quarterly Audit Committee meetings. Plante & Moran did not perform non-audit services for the Company in 2024, however the approval of such services if necessary in the future would follow the policies and procedures described above.

All services provided by Plante & Moran during the fiscal year ended December 31, 2024 and December 31, 2023 were approved by the Audit Committee.

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CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS

The following is a description of transactions since January 1, 2023, to which we have been a party, in which the amount involved exceeds the lesser of $120,000 and 1% of our average total assets at year-end for the last two fiscal years, and in which any of our directors, executive officers or greater than 5% stockholders, or an affiliate or immediate family member thereof, had or will have a direct or indirect material interest. We have entered into such transactions in the ordinary course of business.

Employment of Kevin Widdicombe

Kevin Widdicombe, the son of Richard Widdicombe, our Chairman, joined the Company in July 2013 as a Risk Modeling Analyst. His current role at Heritage is BI Analyst. Mr. K. Widdicombe holds a bachelor’s degree in Risk Management and Insurance from Florida State University. Mr. K. Widdicombe reports directly to the Data Warehouse Manager. In 2024 and 2023, Mr. K. Widdicombe received total cash compensation of approximately $187,100 and $174,115, respectively. Mr. K. Widdicombe also participates in the Company’s benefit plans that are made available to all employees.

Relationship with Mark Berset

Mark Berset, a member of the Board, owns and is chief executive officer of Comegys Insurance Agency, Inc. (“Comegys”), an independent insurance agency that writes insurance policies for the Company. For the years ended December 31, 2024 and 2023, the Company paid agency commission to Comegys of approximately $139,792 and $132,505, respectively. The commissions received by Comegys were based upon standard industry rates consistent with those provided to the Company’s other insurance agencies. There are no arrangements or understandings between Mr. Berset and any other persons with respect to his appointment as a director.

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OTHER INFORMATION

Stockholder Proposals for the 2026 Annual Meeting

If any stockholder intends to present a proposal to be considered for inclusion in the Company’s proxy materials in connection with the 2025 annual meeting of stockholders pursuant to Rule 14a-8 under the Exchange Act, the proposal must be in proper form (per SEC Regulation 14A, Rule 14a-8) and received by the Secretary of the Company at the address listed below under the heading “Available Information” on or before December 26, 2025. Stockholder proposals and director nominations pursuant to the advance notice provision of the Company’s Bylaws to be presented at the 2025 annual meeting of stockholders which are not to be included in the Company’s proxy materials must be received by the Company no earlier than February 6, 2026, and no later than March 7, 2026, in accordance with the procedures in the Company’s Bylaws.

Stockholders providing notice to the Company under the SEC’s Rule 14a-19 who intend to solicit proxies in support of nominees submitted under the advance notice provision of the Company’s Bylaws for the 2026 annual meeting of stockholders must comply with the advance notice deadline set forth above, the requirements of the Company’s Bylaws and the additional requirements of Rule 14a-19(b).

Expenses of Solicitation

The Company pays the cost of preparing, assembling and mailing this proxy-soliciting material. The Company pays all costs of solicitation, including certain expenses of brokers and nominees who mail proxy materials to their customers or principals. We have engaged Georgeson LLC (“Georgeson”) as our proxy solicitor at an anticipated cost of approximately $13,500 plus reasonable out-of-pocket expenses. This estimate is subject to the final solicitation campaign approved by us and Georgeson.

“Householding” of Proxy Materials

The SEC has adopted rules that permit companies and intermediaries (e.g., brokers) to satisfy the delivery requirements for proxy statements and other proxy materials with respect to two or more stockholders sharing the same address by delivering a single copy of the proxy statement and other proxy materials addressed to those stockholders. This process, which is commonly referred to as “householding,” potentially provides convenience for stockholders and cost savings for companies.

We have delivered only one copy of our proxy materials and other proxy materials to multiple stockholders who share an address, unless we received contrary instructions from the impacted stockholders prior to the mailing date. We agree to deliver promptly, upon written or oral request, a separate copy of our proxy statement (and any other proxy materials and documents sent therewith), as requested, to any stockholder at the shared address to which a single copy of these documents was delivered. Stockholders should contact their broker or, if a stockholder is a direct holder of shares of our common stock, they should submit their request to our transfer agent in writing addressed to: Computershare Investor Services, P.O. Box 30170, College Station, Texas 77842-3170. In addition, stockholders who currently receive multiple copies of our proxy statement and other proxy materials at their address and would like to request “householding” of their communications should contact their broker or, if a stockholder is a direct holder of shares of our common stock, they should submit a request to our transfer agent in writing at the address above.

Available Information

We will deliver without charge to each person whose proxy is being solicited, upon request of any such person, a copy of the Notice, this proxy statement and our Annual Report. A request for a copy of any of these documents should be directed to Heritage Insurance Holdings Inc., 1401 N Westshore Blvd., Tampa, Florida 33607, Attention: Secretary, Telephone: (727) 362-7200.

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ANNEX A

AMENDMENT TO THE HERITAGE INSURANCE HOLDINGS, INC. 2023 OMNIBUS INCENTIVE PLAN

WHEREAS, Heritage Insurance Holdings, Inc., a Delaware corporation (the “Company”) maintains the 2023 Omnibus Incentive Plan (the “Plan”), which was previously approved by the Company’s Board of Directors (the “Board”) on April 27, 2023 and approved by the stockholders of the Company on June 7, 2023;

WHEREAS, the Board believes that the number of shares of common stock remaining available for issuance under the Plan has become insufficient for the Company’s anticipated future needs under the Plan;

WHEREAS, the Board has determined that it is in the best interests of the Company to amend the Plan, subject to stockholder approval, to increase the number of shares of common stock available for issuance under the Plan by 1,800,000 shares (the “Amendment”);

WHEREAS, Section 16 of the Plan provides that the Board may amend the Plan from time to time; and

WHEREAS, this Amendment will become effective upon approval by the Company’s stockholders at the Company’s 2025 Annual Meeting of Stockholders and if, for any reason, the Company’s stockholders fail to approve this Amendment, the existing Plan shall continue in full force and effect.

NOW, THEREFORE:

1. Section 6(a) of the Plan is hereby deleted in its entirety and replaced with the following:

2. Section 6(b) of the Plan is hereby deleted in its entirety and replaced with the following:

IN WITNESS WHEREOF, this Amendment has been adopted by the Board this 16^th day of April, 2025, subject to approval by the Company’s stockholders at the Company’s 2025 Annual Meeting of Stockholders.

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Your vote matters – here’s how to vote! You may vote online or by phone instead of mailing this card. Online Go to www.investorvote.com/HRTG or scan the QR code — login details are located in the shaded bar below. Phone Call toll free 1-800-652-VOTE (8683) within the USA, US territories and Canada Save paper, time and money! Sign up for electronic delivery at www.investorvote.com/HRTG Using a black ink pen, mark your votes with an X as shown in this example. Please do not write outside the designated areas. 2025 Annual Meeting Proxy Card IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE. A Proposals — The Board of Directors recommends a vote FOR all the nominees listed and FOR Proposals 2, 3 and 4. 1. Election of Directors: For Withhold 01—Ernie Garateix 04—Irini Barlas 07—Paul L. Whiting 02—Richard Widdicombe 05—Mark Berset For Withhold 03—Panagiotis (Pete) Apostolou 06—Joseph Vattamattam For Withhold For Against Abstain 2. Ratify the appointment of Plante & Moran, PLLC as the independent registered public accounting firm for the Company for the fiscal year ending December 31, 2025 4. Approve an amendment to the Company’s 2023 Omnibus Incentive Plan to increase the number of authorized shares by 1,800,000 shares 3. Approve, on an advisory basis, the compensation of the Company’s named executive officers For Against Abstain B Authorized Signatures — This section must be completed for your vote to count. Please date and sign below. Please sign exactly as name(s) appears hereon. Joint owners should each sign. When signing as attorney, executor, administrator, corporate officer, trustee, guardian, or custodian, please give full title. Date (mm/dd/yyyy) — Please print date below. Signature 1 — Please keep signature within the box. Signature 2 — Please keep signature within the box. 73 D V 045A0B

The 2025 Annual Meeting of Stockholders of Heritage Insurance Holdings, Inc. will be held on June 10, 2025 at 10:00 a.m., Eastern Time, both virtually via the Internet at meetnow.global/MJJHJNV and in person at The Westshore Grand, 4860 W Kennedy Blvd, Tampa, FL 33609. To access the virtual meeting, you must have the information that is printed in the shaded bar located on the reverse side of this form. To attend the meeting in person, upon arrival, please present this admission ticket and photo identification at the registration desk. Small steps make an impact. Help the environment by consenting to receive electronic delivery, sign up at www.investorvote.com/HRTG IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE. Proxy — Heritage Insurance Holdings, Inc. Notice of 2025 Annual Meeting of Stockholders Proxy Solicited by Board of Directors for Annual Meeting — June 10, 2025 Richard Widdicombe and Ernie Garateix (the “Proxies”), or either of them, each with the power of substitution, are hereby authorized to represent and vote the shares of the undersigned, with all the powers which the undersigned would possess if personally present, at the Annual Meeting of Stockholders of Heritage Insurance Holdings, Inc. to be held on June 10, 2025 or at any postponement or adjournment thereof. Shares represented by this proxy will be voted as directed by the stockholder. If no such directions are indicated, the Proxies will have authority to vote FOR each of the director nominees, FOR the ratification of the appointment of Plante & Moran, PLLC as the independent registered public accounting firm for fiscal year 2025, FOR the approval, on an advisory basis, of the compensation of the named executive officers and FOR the amendment to the Company’s 2023 Omnibus Incentive Plan. In their discretion, the Proxies are authorized to vote upon such other business as may properly come before the meeting. (Items to be voted appear on reverse side) C Non-Voting Items Change of Address — Please print new address below. Comments — Please print your comments below. Meeting Attendance Mark box to the right if you plan to attend the Annual Meeting.