The information in this prospectus is not complete and may be changed. WeThe selling stockholders may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any state where the offer or sale is not permitted.

Subject to Completion, dated August 5, 2015December 1, 2017

PROSPECTUS

$400,000,000

Heritage Insurance Holdings, Inc.

2,222,215 Shares of Common Stock

Preferred Stock

Debt Securities

Warrants

Subscription Rights

Stock Purchase Contracts

Stock Purchase Units

WeThe selling stockholders named in this prospectus may offer and sell at any time and from time to time in one or more offerings, up to 2,222,215 shares of our common stock. The shares of our common stock that may be offered by the selling stockholders using this prospectus were issued to the selling stockholders in connection with our acquisition of NBIC Holdings, Inc., the parent company of Narragansett Bay Insurance Company, a total dollar amountleading specialty underwriter of $400,000,000 ofpersonal residential insurance products and services in states along the Eastern seaboard, on November 30, 2017. We will not receive any of the following securities:proceeds from the sale of shares of common stock by the selling stockholders. We will bear all expenses of the offering of common stock, except that the selling stockholder will pay any applicable underwriting fees, discounts or commissions and certain transfer taxes.

When we use the term ‘‘securities” incovered by this prospectus wedoes not mean that the selling stockholders will offer or sell any of the securities weshares. The selling stockholders may offer withsell the shares of common stock covered by this prospectus unless we say otherwise.

This prospectus describes some of the general terms that may apply to these securities and the general manner in which they may be offered. The specific terms of any securities to be offered, and the specific manner in which they may be offered, will be described in a supplement to this prospectus or incorporated into this prospectus by reference. You should read this prospectusnumber of different ways and any supplement carefully before you invest. Each prospectus supplement will indicate if the securities offered thereby will be listed or quoted on a securities exchange or quotation system.

When we issue new securities, we may offer them for sale to or through underwriters, dealers and agents or directly to purchasers. The applicable prospectus supplement for each offering of securities will describe in detail the plan of distribution for that offering, including any requiredat varying prices. We provide more information about how the firms we use andselling stockholders may sell the discounts or commissions we may pay them for their services. For general information aboutshares in the distribution of securities offered, please seesection entitled “Plan of Distribution” beginning on page 12 of this prospectus.7.

If any securities are to be listed or quoted on a securities exchange or quotation system, our prospectus supplement will say so. Our common stock is listed on theThe New York Stock Exchange under the symbol “HRTG.”“HRTG”. On November 30, 2017, the last reported sale price of our common stock on The New York Stock Exchange was $17.98 per share.

Investing in our securitiesthe common stock involves risks. You should carefully read and consider the risk factors included in our periodic reports filed with the Securities and Exchange Commission, in any applicable prospectus supplement relating to a specific offering of securities and in any other documents we file with the Securities and Exchange Commission. See the section entitled “Risk Factors” on page 23 of this prospectus, in our other filings with the Securities and Exchange Commission and in the applicable prospectus supplement.prospectus.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined ifpassed upon the adequacy or accuracy of this prospectus or any prospectus supplement is truthful or complete.prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus is , 2015.December 1, 2017.

TABLE OF CONTENTS

i

ABOUT THIS PROSPECTUS

This prospectus is part of a shelf registration statement that we have filed with the Securities and Exchange Commission (the “SEC”). By, using a “shelf” registration process. Under this shelf registration statement, weprocess, the selling stockholders identified in this prospectus may offer or sell at any time and from time to time,shares of our common stock, as described in this prospectus, in one or more offerings any combination of the securities described in this prospectus up to a total dollar amount of $400,000,000 or the equivalent of this amount in foreign currencies or foreign currency units.

This prospectus provides you with only a general description of the securities we may offer. It is not meant to be a complete description of any security. Each time we sell securities, we will provide a prospectus supplement that will contain specific information about the terms of that offering, including the specific amounts, prices and terms of the securities offered. We and any underwriter or agent that we may from time to time retaintime.

We may also provide other information relatingauthorize one or more free writing prospectuses or prospectus supplements to an offering, which we referbe provided to as “other offering material.” Theyou in connection with these offerings. Any related free writing prospectus or prospectus supplement as well as the other offering material may also add, update or change information contained in this prospectus or in theany documents that we have incorporated by reference into this prospectus. prospectus and, accordingly, to the extent inconsistent, information in this prospectus is superseded by the information in any accompanying prospectus supplement or any related free writing prospectus or pursuant to any document hereafter incorporated by reference.

You should readonly rely on the information contained or incorporated by reference in this prospectus and any applicable prospectus supplement or any related free writing prospectus that we may authorize to be provided to you. We and the selling stockholders have not authorized any other offering material (includingperson to provide you with different information or make any representations other than those contained in this prospectus or in any applicable prospectus supplement or related free writing prospectus) preparedprospectus. If anyone provides you with different or inconsistent information, you should not rely on it. You should not assume that the information contained or incorporated by reference in this prospectus or any applicable prospectus supplement or any related free writing prospectus is accurate as of any date other than the date on behalfthe cover of us for a specific offeringthe applicable document. Our business, financial condition, results of securities, together withoperations and prospects may have changed since that date.

We urge you to read carefully this prospectus, the documents incorporated herein by reference (as supplemented and amended) and the additional information described inbelow under the section entitledheadings “Where You Can Find More Information” and “Information Incorporated By Reference” before deciding whether to purchase any other offering material. Throughout this prospectus, where we indicate that information may be supplemented in an applicable prospectus supplement or supplements, that information may also be supplemented in other offering material. If there is any inconsistency between this prospectus andof the information contained in a prospectus supplement, you should rely on the information in the prospectus supplement.shares of our common stock being offered hereunder.

Unless otherwise indicated or the context otherwise requires, all references to “Heritage,” “Company,” “Registrant,” “we,” “our,” “ours” and “us” refer to Heritage Insurance Holdings, Inc. and its subsidiaries. When we refer to “you” in this section, we mean all prospective purchasers of the securities being offered by this prospectus and any accompanying prospectus supplement, whether they are or will be the holders or only indirect owners of those securities.

RISK FACTORS

Investing in the securities offered pursuant to this prospectus may involve a high degree of risk. You should carefully consider the risk factors described in this prospectus, in Part I, Item 1A, “Risk Factors” in our Annual Report on Form10-K for the year ended December 31, 20142016 and in our other reports filed from time to time with the SEC, which are incorporated by reference into this prospectus, as the same may be amended, supplemented or superseded from time to time by our filings under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), as well as any prospectus supplement relating to a specific security.. Before making any investment decision, you should carefully consider these risks as well as other information we include or incorporate by reference in this prospectus or in any applicable prospectus supplement. For more information, see the sectionsections entitled “Where You Can Find More Information” on page 15 of this prospectus.and “Information Incorporated By Reference.” These risks could materially adversely affect our business, results of operations or financial condition and affect the value of our securities. You could lose all or part of your investment.

The terms of our Convertible Notes provide that we cannot satisfy our conversion obligations by delivering shares of common stock unless and until we obtain shareholder approval, and until we do, the accounting treatment for the Convertible Notes could have an adverse effect on our reported results of operations.

In connection with the NBIC Acquisition, we issued $125 million in aggregate principal amount of 5.875% Convertible Senior Notes due 2037 (the “Convertible Notes”). Unless and until we obtain the requisite shareholder approval, we must satisfy the conversion obligation of our outstanding Convertible Notes solely through the delivery of cash. Until we obtain shareholder approval, the conversion option that is part of the notes will be accounted for as a derivative liability pursuant to accounting standards relating to derivative instruments and hedging activities (notwithstanding other factors to be evaluated during each reporting period regarding the classification of derivative instruments). For each financial statement period after issuance of the notes, a hedge gain (or loss) will be reported in our income statement to the extent the valuation of the derivative liability changes from the previous period as a result of changes in the market price of our common stock or changes in other valuation inputs and assumptions. This could result in significant fluctuations in our consolidated statement of comprehensive income (loss) from period to period and have a material adverse impact on our earnings per share. In addition, this could adversely affect our effective tax rate, further reducing earnings per share. Once shareholder approval is obtained, the conversion option is classified in the equity section of the balance sheet and a quarterly valuation is not required, thereby limiting the volatility of an adverse impact to earnings.

Settlement of our conversion obligations in shares of common stock may dilute the ownership interest of our stockholders, or may otherwise depress the price of our common stock.

Following shareholder approval, if we elect to settle our conversion obligations in shares of common stock (other than paying cash in lieu of delivering any fractional share), the conversion of some or all Convertible Notes would dilute the ownership interests of existing stockholders. If the Convertible Notes become convertible under the terms of the indenture, and if holders subsequently elect to convert their notes, we could be required to deliver to them a significant number of shares of our common stock, should we elect to settle in shares of common stock in lieu of cash. Any sales in the public market of the common stock issuable upon such conversion could adversely affect prevailing market prices of our common stock. In addition, the existence of the Convertible Notes may encourage short selling by market participants because the conversion of such notes could be used to satisfy short positions, or anticipated conversion of such notes into shares of our common stock could depress the price of our common stock.

FORWARD-LOOKING STATEMENTS

Certain statements and information in this prospectus and the documents we incorporate by reference may constitute “forward-looking statements.” These statements may be identified by the use of forward-looking terminology such as “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “might,” “plan,” “potential,” “predict,” “should,” or the negative thereof or other variations thereon or comparable terminology. All statements contained or incorporated in this prospectus which address operating performance, events or developments that we expect or anticipate may occur in the future, including statements related to statements about our expectations, beliefs, plans, objectives, assumptions or future events or performance, are forward-looking statements. Important factors, risks and uncertainties that may cause actual results to differ from those expressed in our forward-looking statements include, but are not limited to:

Given these risks and uncertainties, we caution you not to place undue reliance on these forward-looking statements. The forward-looking statements included in or incorporated by reference into this prospectus are made only as of the date hereof.on the cover of the applicable document. We do not undertake and specifically decline any obligation to update any of these statements or to publicly announce the results of any revisions to any of these statements to reflect future events or developments.

USE OF PROCEEDS

Unless otherwise specified in the applicable prospectus supplement, the netThe proceeds we receive from the sale of the securitiescommon stock offered bypursuant to this prospectus andare solely for the applicable prospectus supplementaccount of the selling stockholders. Accordingly, we will be used for working capital and other general corporate purposes. We will have significant discretion in the use ofnot receive any net proceeds. General corporate purposes may include, but are not limited to:

The net proceeds from the sale of securitiesthe common stock offered pursuant to this prospectus.

DESCRIPTION OF SUBSCRIPTION RIGHTS

(3)

PBRA, LLC is the general partner of BFG Intermediate, L.P. Howard Newman is the sole member of PBRA, LLC, and has investment and voting control over the shares held or controlled by BFG Intermediate, L.P. The address of BFG Intermediate, L.P. is c/o PBRA, LLC, 60 East 42nd Street, New York, NY 10165.

(4)

Soros Fund Management LLC (“SFM LLC”) serves as principal investment manager to Quantum Strategic Partners Ltd. As such, SFM LLC has been granted investment discretion over portfolio investments, including the shares being registered by this prospectus held for the account of Quantum Strategic Partners Ltd. George Soros serves as Chairman and Manager of SFM LLC and Robert Soros serves as Manager of SFM LLC. The address of SFM LLC is 250 West 55th Street, New York, NY 10019.

(5)	The address of this stockholder is 5 Tern Lane, South Dartmouth, MA 02748.

(6)	The address of this stockholder is P.O. Box HM 104, Hamilton HM AX, Bermuda.

(7)	The address of this stockholder is 800 Boylston Street, #2510, Boston, MA 02199.

(8)	The address of this stockholder is 377 Oak Street, Suite405-7, Garden City, NY 11530.

We may issue subscription rights to purchase debt securities, preferred stock, common stock or other securities. These subscription rights may be issued independently or together with any other security offered hereby and may or may not be transferable by the stockholder receiving the subscription rights in such offering. In connection with any offering of subscription rights, we may enter into a standby arrangement with one or more underwriters or other purchasers pursuant to which the underwriters or other purchasers may be required to purchase any securities remaining unsubscribed after such offering.

The applicable prospectus supplement will describe the specific terms of any offering of subscription rights for which this prospectus is being delivered. A holder or prospective holder of subscription rights should refer to the applicable prospectus supplement for more specific information.

DESCRIPTION OF STOCK PURCHASE CONTRACTS AND STOCK PURCHASE UNITS

We may issue stock purchase contracts, representing contracts obligating holders to purchase from us, and requiring us to sell to the holders, a specified number of shares of common stock at a future date or dates.

The price per share of common stock may be fixed at the time the stock purchase contracts are issued or may be determined by reference to a specific formula set forth in the stock purchase contracts. The stock purchase contracts may be issued separately or as a part of units, or stock purchase units, consisting of a stock purchase contract and either (x) senior debt securities, senior subordinated debt securities, subordinated debt securities or junior subordinated debt securities, or (y) debt obligations of third parties, including U.S. Treasury securities, in each case, securing the holder’s obligations to purchase our common stock under the stock purchase contracts. The stock purchase contracts may require us to make periodic payments to the holders of the stock purchase contracts or vice versa, and such payments may be unsecured or prefunded on some basis. The stock purchase contracts may require holders to secure their obligations thereunder in a specified manner and in certain circumstances we may deliver newly issued prepaid stock purchase contracts, or prepaid securities, upon release to a holder of any collateral securing such holder’s obligations under the original stock purchase contract. The applicable prospectus supplement will describe the terms of any stock purchase contracts or stock purchase units and, if applicable, prepaid securities.

PLAN OF DISTRIBUTION

We may sell common stock, preferred stock, debt securities, warrants, subscription rights, stock purchase contracts, and/or stock purchase units in one or more of the following ways from time to time:

The prospectus supplements relating to an offering of securities will set forth the terms of such offering, including:

Any public offering prices, discounts or concessions allowed or reallowed or paid to dealers may be changed from time to time.

If underwriters are used in the sale, the underwriters will acquire the offered securities for their own account and may resell them from time to time, sell, transfer or otherwise dispose of any or all of their shares of common stock or interests in oneshares of common stock on any stock exchange, market or more transactions, including negotiated transactions,trading facility on which the shares are traded or in private transactions. These dispositions may be at a fixed public offeringprices, at prevailing market prices at the time of sale, at prices related to the prevailing market price, or at varying prices determined at the time of sale.sale, or at negotiated prices. The offered securitiesselling stockholders may be offered either to the public through underwriting syndicates represented byuse one or more managing underwriters or by one or more underwriters without a syndicate. Unless otherwise set forth in a prospectus supplement, the obligations of the underwriters to purchase any series of securities will be subject to certain conditions precedent and the underwriters will be obligated to purchase all of such series of securities if any are purchased.

In connection with underwritten offeringsfollowing methods when disposing of the offered securities and in accordance with applicable law and industry practice, underwriters may over-allotshares or effect transactions that stabilize, maintain or otherwise affect the market price of the offered securities at levels above those that might otherwise prevail in the open market, including by entering stabilizing bids, effecting syndicate covering transactions or imposing penalty bids, each of which is described below:interests therein:

These transactions may be effected on the New York Stock Exchange, in the over-the-counter market, or otherwise. Underwriters are not required to engage in any of these activities, or to continue such activities if commenced.

If a dealer is used in the sale, we will sell such offered securities to the dealer, as principal. The dealer may then resell the offered securities to the public at varying prices to be determined by that dealer at the time for resale. The names of the dealers and the terms of the transaction will be set forth in the prospectus supplement relating to that transaction.

Offered securities may be sold directly by us to one or more institutional purchasers, including affiliates;

The selling stockholders may also sell shares under Rule 144 under the Securities Act, if available, rather than under this prospectus.

Broker-dealers engaged by the selling stockholders may arrange for other broker-dealers to participate in sales. Broker-dealers may receive commissions or discounts from the selling stockholders (or, if any broker-dealer acts as agent for the purchaser of shares, from the purchaser) in amounts to be named,negotiated. The selling stockholders do not expect these commissions and any commissions payable by usdiscounts to such agent will be set forthexceed what is customary in the types of transactions involved. The selling stockholders may agree to indemnify any agent, dealer or broker-dealer that participates in transactions involving sales of the shares if liabilities are imposed on that person under the Securities Act.

The selling stockholders may from time to time pledge or grant a security interest in some or all of the shares of common stock owned by them and, if they default in the performance of their secured obligations, the pledgees or secured parties may offer and sell shares of common stock from time to time under this prospectus, or under a supplement relatingor amendment to this prospectus under Rule 424(b)(3) or other applicable provision of the Securities Act amending the list of selling stockholders to include the pledgee, transferee or other successors in interest as selling stockholders under this prospectus.

Upon being notified in writing by the selling stockholders that offering, unless otherwise indicated in such prospectus supplement, any such agent will be acting on a best efforts basis for the period of its appointment.

Underwriters, dealers and agents may be entitled under agreementsmaterial arrangement has been entered into with usa broker-dealer for the sale of common stock through a block trade, special offering, exchange distribution or secondary distribution or a purchase by a broker or dealer, we will file a supplement to indemnificationthis prospectus, if required, pursuant to Rule 424(b) under the Securities Act, disclosing (i) the name of the participating broker-dealer(s), (ii) the number of shares involved, (iii) the price at which such shares of common stock were sold, (iv) the commissions paid or discounts or concessions allowed to such broker-dealer(s), where applicable, and (v) other facts material to the transaction that are required to be disclosed. In addition, upon being notified in writing by usthe selling stockholders that a donee or pledge intends to sell more than 500 shares of common stock, we will file a supplement to this prospectus if then required in accordance with applicable securities law.

The selling stockholders also may transfer the shares of common stock in other circumstances, in which case the transferees, pledgees or other successors in interest will be the selling beneficial owners for purposes of this prospectus.

In connection with the sale of the shares of common stock or interests in shares of common stock, the selling stockholders may enter into hedging transactions after the effective date of the registration statement of which this prospectus is a part with broker-dealers or other financial institutions, which may in turn engage in short sales of the common stock in the course of hedging the positions they assume. The selling stockholders may also sell shares of common stock short after the effective date of the registration statement of which this prospectus is a part and deliver these securities to close out their short positions, or loan or pledge the common stock to broker-dealers that in turn may sell these securities. The selling stockholders may also enter into option or other transactions after the effective date of the registration statement of which this prospectus is a part with broker-dealers or other financial institutions or the creation of one or more derivative securities which require the delivery to such broker-dealer or other financial institution of shares offered by this prospectus, which shares such broker-dealer or other financial institution may resell pursuant to this prospectus (as supplemented or amended to reflect such transaction).

The selling stockholders and any broker-dealers or agents that are involved in selling the shares may be deemed to be “underwriters” within the meaning of the Securities Act in connection with such sales. In such event, any commissions received by such broker-dealers or agents and any profit on the resale of the shares purchased by them may be deemed to be underwriting commissions or discounts under the Securities Act.

We have advised the selling stockholders that they are required to comply with Regulation M promulgated under the Exchange Act during such time as they may be engaged in a distribution of the shares. The foregoing may affect the marketability of the common stock.

We have agreed to indemnify the selling stockholders against certain civil liabilities, including liabilities under the Securities Act or to contribution with respect to payments that the underwriters, dealers or agents may be required to make in respect thereof. Underwriters, dealers and agents may be customers of, engage in transactions with, or perform services for us and our affiliates in the ordinary course of business.

Under thestate securities laws, relating to the registration of some states, the securitiesshares offered by this prospectus mayprospectus.

The aggregate proceeds to the selling stockholders from the sale of the common stock offered by them will be soldthe purchase price of the common stock less discounts or commissions, if any. The selling stockholders reserve the right to accept and, together with their agents from time to time, to reject, in those states only through registeredwhole or licensed brokers or dealers.

Any person participating in the distributionpart, any proposed purchase of common stock registered under the registration statement that includes this prospectusto be made directly or through agents. We will be subject to applicable provisionsnot receive any of the Exchange Act, and applicable SEC rules and regulations, including, among others, Regulation M, which may limit the timing of purchases and sales of any of our common stock by any such person. Furthermore, Regulation M may restrict the ability of any person engaged in the distribution of our common stock to engage in market-making activities with respect to our common stock. These restrictions may affect the marketability of our common stock and the ability of any person or entity to engage in market-making activities with respect to our common stock.

Other than our common stock, which is listed on the New York Stock Exchange, each of the securities issued hereunder will be a new issue of securities, will have no prior trading market, and may or may not be listed on a national securities exchange. Any common stock sold pursuant to a prospectus supplement will be listed on the New York Stock Exchange, subject to official notice of issuance. Any underwriters to whom we sell securities for public offering and sale may make a market in the securities, but such underwriters will not be obligated to do so and may discontinue any market making at any time without notice. We cannot assure you that there will be a market for the offered securities.proceeds from this offering.

EXPERTS

The financial statements incorporated by reference in this prospectus and elsewhere in thisthe registration statement of which this prospectus is a part, to the extent and for the periods indicated in their report, have been so incorporated by reference in reliance upon the report of Grant Thornton LLP, independent registered public accountants, upon the authority of said firm as experts in accounting and auditing.

LEGAL MATTERS

The validity of the securities offered hereby will be passed upon for us by Winston & Strawn LLP. Unless otherwise indicated in the applicable prospectus supplement, Skadden, Arps, Slate, Meagher & Flom LLP, New York, New York is representing the selling stockholders in connection with offerings pursuant to this prospectus. Certain legal matters may be passed upon for any agents or underwriters by counsel for such agents or underwriters identified in the applicable prospectus supplement.

WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and current reports, proxy statements and other information with the SEC under the Exchange Act. You may read and copy any document we file at the SEC’s Public Reference Room located at 100 F Street, N.E., Washington, D.C. 20549. You may obtain information on

the operation of the public reference room by calling the SEC at1-800-SEC-0330. Our filings with the SEC also are available from the SEC’s internet site at http://www.sec.gov, which contains reports, proxy and information statements, and other information regarding issuers that file electronically. You may obtain a copy of these filings at no cost by writing or telephoning us at the following address: Heritage Insurance Holdings, Inc., 2600 McCormick Drive Suite 300, Clearwater, Florida 33759, phone number (727)727-7200.

INFORMATION INCORPORATED BY REFERENCE

The SEC allows us to “incorporate by reference” into this prospectus the information we file with them, which means that we can disclose important information to you by referring you to those documents. Any statement contained or incorporated by reference in this prospectus shall be deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained herein, or in any subsequently filed document which also is incorporated by reference herein, modifies or supersedes such earlier statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus. We incorporate by reference the documents listed below:

All documents that we file (but not those that we furnish) with the SEC pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act (i) after the date of the initial registration statement of which this prospectus forms a part and prior to the effectiveness of such registration statement and (ii) after the date of this prospectus and before all of the securities offered by this prospectus are sold are incorporated by reference in this prospectus from the date of filing of the documents, unless we specifically provide otherwise. Information that we file with the SEC will automatically update and may replace information previously filed with the SEC.

You may obtain, without charge, a copy of any of the documents incorporated by reference in this prospectus, other than exhibits to those documents that are not specifically incorporated by reference into those documents, by writing or telephoning us at the following address: Heritage Insurance Holdings, Inc., 2600 McCormick Drive Suite 300, Clearwater, Florida 33759, phone number (727)727-7200.

Information contained on our website, www.heritagepci.com, is not incorporated by reference in, and does not constitute part of, this prospectus.

PART II

INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.

Estimated expenses of the offering, other than those relating to the SEC registration fee, are not presently known. The following table below sets forth the general categories ofvarious costs and expenses (other than underwriting discounts and commissions) that we anticipate we will incurpayable by us in connection with the offering of securities under this Registration Statement. An estimate of the aggregate expenses in connection with the issuance and distribution of the securities being offered will be included inregistered hereby. All amounts are estimates, except for the applicable prospectus supplement.SEC registration fee.

Item 15. Indemnification of Directors and Officers.

Delaware General Corporation Law

We are incorporated under the laws of the State of Delaware. Our Certificate andBy-laws provide for the indemnification of our directors, officers, employees and agents to the fullest extent permitted under the Delaware General Corporation Law. Section 145 of the Delaware General Corporation Law provides that a corporation shall have the power to indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the corporation) by reason of the fact that the person is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by the person in connection with such action, suit or proceeding if the person acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the corporation, and, with respect to any criminal action or proceeding, had no reasonable cause to believe the person’s conduct was unlawful. The termination of any action, suit or proceeding by judgment, order, settlement or conviction, or upon a plea of nolo contendere or its equivalent, shall not, of itself, create a presumption that the person did not act in good faith and in a manner which the person reasonably believed to be in or not opposed to the best interests of the corporation, and, with respect to any criminal action or proceeding, had reasonable cause to believe that the person’s conduct was unlawful.

In addition, we have the power to indemnify any person who was or is a party or is threatened to be made a party to, or otherwise involved (including involvement as a witness) in, any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its favor by reason of the fact that the person is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against expenses (including attorneys’ fees) actually and reasonably incurred by the person in connection with the defense or settlement of such action or suit if the person acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the corporation and except that no indemnification shall be made in respect of any claim, issue or matter as to which such person shall have been adjudged to be liable to the corporation unless and only to the extent that a Delaware Court of Chancery or the court in which such action or suit was brought shall determine upon application that, despite the adjudication of liability but in view of all the circumstances of the case, such person is fairly and reasonably entitled to indemnity for such expenses which the Court of Chancery or such other court shall deem proper.

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Section 102(b)(7) of the Delaware General Corporation Law permits a corporation to provide in its certificate of incorporation a provision eliminating or limiting the personal liability of a director to the corporation or its stockholders for monetary

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damages for breach of fiduciary duty as a director, provided that such provision shall not eliminate or limit the liability of a director:

Our Certificate includes such a provision. As a result of this provision, Heritage and its stockholders may be unable to obtain monetary damages from a director for certain breaches of his or her fiduciary duty to Heritage. This provision does not, however, eliminate a director’s fiduciary responsibilities and, in appropriate circumstances, equitable remedies such as injunctive or other forms ofnon-monetary relief will remain available under Delaware law. The provision also does not affect a director’s responsibilities under any other laws, such as the federal securities laws.

Indemnification Agreements

We have entered into indemnification agreements with each of our directors and executive officers that may be broader than the specific indemnification provisions contained in the Delaware General Corporation Law, as amended from time to time. These indemnification agreements may require us, among other things, to indemnify our directors and executive officers against liabilities that may arise by reason of their status or service. These indemnification agreements may also require us to advance all expenses incurred by the directors or executive officers in investigating or defending any such action, suit or proceeding. However, an individual will not receive indemnification for judgments, settlements or expenses if he or she is found liable to Heritage (except to the extent the court determines he or she is fairly and reasonably entitled to indemnity for expenses that the court shall deem proper).

Directors’ and Officers’ Liability Insurance

We maintain directors’ and officers’ liability insurance policies, which insure against liabilities that our directors or officers may incur in such capacities. These insurance policies, together with the indemnification agreements, may be sufficiently broad to permit indemnification of our directors and officers for liabilities, including reimbursement of expenses incurred, arising under the Securities Act or otherwise.

Item 16. ListUnderwriting Agreement

The form of Exhibits.underwriting agreement to be filed by amendment to this registration statement or incorporated by reference from documents filed or to be filed with the SEC may provide for indemnification of directors and certain officers of the registrant by the underwriters against certain liabilities.

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Item 17. Undertakings.

The undersigned registrant hereby undertakes:

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provided, however, that paragraphs (a)(1)(i), (a)(1)(ii) and (a)(1)(iii) of this section do not apply if the registration statement is on Form S-3 and the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the CommissionSEC by the registrant pursuant to section 13 or section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.

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EXHIBIT INDEX

Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person of the registrant in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final adjudication of such issue.

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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on FormS-3 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Clearwater, State of Florida, on August 5, 2015.December 1, 2017.

POWER OF ATTORNEY

Each person whose signature appears below hereby constitutes and appoints each of Bruce Lucas and Richard Widdicombe his true and lawfulattorney-in-fact and agent with full powers of substitution and resubstitution, for the undersigned and in the name of the undersigned, in any and all capacities, to sign any or all amendments (including post-effective amendments) to this Registration Statement on FormS-3, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto saidattorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that saidattorneys-in-fact and agents or their substitute or substitutes may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed by the following persons in the capacities and on the dates indicated.

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EXHIBIT INDEX