Description of Registrant's Securities

This summary does not purport to be complete and is subject to, and qualified in its entirety by, the provisions of HTA’s Fifth Articles of Amendment and Restatement, as amended, supplemented and corrected from time to time (the “Charter”), HTA’s Bylaws (the “Bylaws”) and all applicable provisions of Maryland law. The Charter and Bylaws are incorporated by reference as exhibits to the registration statement of which this prospectus is a part. The particular terms of any offering of our securities will be described in a prospectus supplement relating to such offering.

Under the Charter, HTA has authority to issue a total of 1,200,000,000 shares of stock. Of the total shares authorized, 1,000,000,000 shares are classified as common stock with a par value of $0.01 per share, all of which were classified as Class A common stock, and 200,000,000 shares are classified as preferred stock with a par value of $0.01 per share. As of December 31, 2019, no shares of preferred stock were issued and outstanding. In addition, the board of directors of HTA (the “board of directors”) may amend the Charter from time to time, with the approval of a majority of the entire board of directors and without stockholder approval, to increase or decrease the aggregate number of shares of stock or the number of shares of stock of any class or series that HTA has authority to issue.

Under Maryland law, HTA’s stockholders are generally not personally liable for HTA’s debts and obligations solely as a result of their status as stockholders.

The Class A common stock is listed on the NYSE under the symbol “HTA.”

The transfer agent and registrar for the common stock is Computershare.

All shares of HTA’s common stock (the “common stock”) have equal rights as to earnings, assets, dividends and voting. Subject to the Charter restrictions on the transfer and ownership of HTA’s stock and the preferential rights of holders of any other class or series of HTA’s stock, distributions may be made to the holders of the common stock if, as and when authorized by the board of directors out of funds legally available therefor. Shares of common stock generally have no preemptive, preferential exchange, conversion, sinking fund or redemption rights and are freely transferable, except where their transfer is restricted by federal and state securities laws, by contract or by the restrictions in the Charter. Holders of shares of common stock have no appraisal rights unless the board of directors determines that appraisal rights apply, with respect to all or any classes or series of stock, to one or more transactions occurring after the date of such determination in connection with which stockholders would otherwise be entitled to exercise appraisal rights. In the event of HTA’s liquidation, dissolution or winding up, each share of common stock would be entitled to share ratably in all of HTA’s assets that are legally available for distribution after payment of or adequate provision for all of HTA’s known debts and other liabilities and subject to any preferential rights of holders of HTA’s preferred stock (the “preferred stock”), if any preferred stock is outstanding at such time, and the Charter restrictions on the transfer and ownership of HTA’s stock. Subject to the Charter restrictions on the transfer and ownership of HTA’s stock and except as may otherwise be specified in the terms of any class or series of common stock, each share of common stock entitles the holder to one vote on all matters submitted to a vote of stockholders, including the election of directors. Except as may be provided with respect to any other class or series of stock, the holders of common stock will possess exclusive voting power. Except as required under Maryland law, holders of all classes of common stock will vote together as a single class.

Under Maryland law, a Maryland corporation generally cannot amend its charter, consolidate or merge with, or convert to, another entity, sell all or substantially all of its assets, engage in a share exchange or dissolve unless the action is advised by the board of directors and approved by the affirmative vote of at least two-thirds of the votes entitled to be cast with respect to such matter. However, a Maryland corporation may provide in its charter for approval of these matters by a lesser percentage, but not less than a majority of all of the votes entitled to be cast with respect to such matter. As permitted by Maryland law, the Charter provides that any of these actions may be approved by the affirmative vote of a majority of all the votes entitled to be cast with respect to such matter. In addition, all other matters to be voted on by stockholders, other than a contested election of directors (in which case directors shall be elected by the vote of a plurality of the votes cast by the stockholders entitled to vote on the election of directors present in person or by proxy at a meeting of stockholders duly called and at which a quorum is present), must be approved by a majority of the votes cast by stockholders, voting together as a single class, at a meeting at which a quorum is present, subject to any voting rights granted to holders of any then outstanding preferred stock. There is no cumulative voting in the election of directors, which means that holders of a majority of the outstanding shares of common stock can elect all of HTA’s directors.

The Charter authorizes the board of directors to classify and reclassify any unissued shares of common or preferred stock into other classes or series of shares of stock, so long as the aggregate number of all shares of all classes or series of stock that the board of directors has authority to issue does not exceed the total number of authorized shares of common and preferred stock as provided in the Charter. Prior to the issuance of shares of each class or series, the board of directors is required by Maryland law and by the Charter to set, subject to the Charter restrictions on transfer and ownership of shares of stock, the terms, preferences, conversion or other rights, voting powers, restrictions, limitations as to dividends or other distributions, qualifications and terms and conditions of redemption for each class or series. Therefore, the board of directors could authorize the issuance of shares of common or preferred stock with terms and conditions that could have the effect of delaying, deferring or preventing a change in control or other transaction that might involve a premium price for HTA’s shares of common stock or otherwise be in the best interest of HTA’s stockholders. No shares of preferred stock are presently outstanding, and we have no present plans to issue any shares of preferred stock.

We believe that the power of the board of directors to amend the Charter from time to time to increase or decrease the number of authorized shares of stock or the number of authorized shares of stock of any class or series, to issue additional authorized but unissued shares of common or preferred stock and to classify or reclassify unissued shares of common or preferred stock and thereafter to issue such classified or reclassified shares of stock will provide us with increased flexibility in structuring possible future financings and acquisitions and in meeting other needs that might arise. The additional classes or series, as well as the shares of common stock, will be available for issuance without further action by HTA’s stockholders, unless such action is required by applicable law or the rules of any stock exchange or market system on which HTA’s securities may be listed or traded. Therefore, the board of directors could authorize HTA to issue a class or series that could, depending upon the terms of the particular class or series, delay, defer or prevent a change in control or other transaction that might involve a premium price for HTA’s shares of common stock or otherwise be in the best interest of HTA’s stockholders.

The Charter authorizes the board of directors to designate and issue one or more classes or series of preferred stock without stockholder approval, and to establish the preferences, conversion or other rights, voting powers, restrictions, limitations as to dividends or other distributions, qualifications and terms and conditions of redemption of each class or series of preferred stock so issued. Because the board of directors has the power to establish the preferences and rights of each class or series of preferred stock, it may afford the holders of any series or class of preferred stock preferences, powers and rights senior to the rights of holders of common stock. If HTA ever created and issued preferred stock with a distribution preference over common stock, payment of any distribution preferences of outstanding preferred stock would reduce the amount of funds available for the payment of distributions on the common stock. Further, holders of preferred stock are normally entitled to receive a liquidation preference in the event HTA liquidates, dissolves or winds up before any payment is made to the common stockholders, likely reducing the amount common stockholders would otherwise receive upon such an occurrence. In addition, under certain circumstances, the issuance of preferred stock may render more difficult or tend to discourage a merger, tender offer or proxy contest, the assumption of control by a holder of a large block of HTA’s securities, or the removal of incumbent management. The board of directors has no present plans to issue any preferred stock, but may do so at any time in the future without stockholder approval.

In order for us to continue to qualify as a REIT, not more than 50% of HTA’s outstanding shares may be owned by any five or fewer individuals during the last half of any taxable year. In addition, the outstanding shares must be owned by 100 or more persons during at least 335 days of a 12-month taxable year or during a proportionate part of a shorter taxable year. See “Material U.S. Federal Income Tax Considerations” for further discussion of this topic. We may prohibit certain acquisitions and transfers of shares so as to ensure our continued qualification as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”). However, we cannot assure you that this prohibition will be effective.

The Charter contains a limitation on ownership that prohibits any individual, entity or group from directly or indirectly acquiring beneficial ownership of more than 9.8% of the value of HTA’s then aggregate outstanding shares of stock of any class or series (which includes common stock and any preferred stock HTA may issue) or more than 9.8% of the value or number of shares, whichever is more restrictive, of HTA’s then outstanding common stock.

Any attempted transfer of HTA’s stock which, if effective, would result in HTA’s stock being beneficially owned by fewer than 100 persons will be null and void. Any attempted transfer of HTA’s stock which, if effective, would result in violation of the ownership limits discussed above or in HTA being “closely held” under Section 856(h) of the Code or otherwise failing to qualify as a REIT, will cause the number of shares causing the violation (rounded up to the nearest whole share) to be automatically transferred to a trust for the exclusive benefit of one or more charitable beneficiaries, and the proposed transferee

will not acquire any rights in the shares. The automatic transfer will be deemed to be effective as of the close of business on the business day prior to the date of the transfer. We will designate a trustee of the share trust that will not be affiliated with us. We will also name one or more charitable organizations as a beneficiary of the share trust. Shares-in-trust will remain issued and outstanding shares and will be entitled to the same rights and privileges as all other shares of the same class or series. The trustee will receive all distributions on the shares-in-trust and will hold such distributions in trust for the benefit of the beneficiary. The trustee will vote all shares-in-trust during the period they are held in trust and, subject to Maryland law, will have the authority to rescind as void any vote cast by the proposed transferee prior to our discovery that the shares have been transferred to the share trust and to recast the vote in accordance with the desires of the trustee acting for the benefit of the charitable beneficiary.

The trustee of the trust will be empowered to sell the shares-in-trust to a qualified person selected by the trustee and to distribute to the applicable prohibited owner an amount equal to the lesser of (1) the sales proceeds received by the trust for such shares-in-trust or (2) (A) if the prohibited owner was a transferee for value, the price paid by the prohibited owner for such shares-in-trust or (B) if the prohibited owner was not a transferee or was a transferee but did not give value for the shares-in-trust, the market price on the day of the event causing the shares to be held in trust. In addition, all shares-in-trust will be deemed to have been offered for sale to us, or our designee, at a price per share equal to the lesser of (1) the price per share in the transaction that created such shares-in-trust (or, in the case of a devise or gift, the market price of such shares at the time of such devise or gift) and (2) the market price on the date we, or our designee, accepts such offer. We may reduce the amount payable to the prohibited owner by the amount of dividends and other distributions that have been paid to the prohibited owner and are owed by the prohibited owner to the trustee. Any amount received by the trustee in excess of the amount to be paid to the prohibited owner will be distributed to the beneficiary of the trust.

Any person who acquires shares in violation of the foregoing restrictions or who would have owned shares that resulted in a transfer to any such trust is required to give immediate written notice to us of such event. Any person who proposes or attempts such a transaction must give us at least 15 days prior written notice. Such person shall provide to us such other information as we may request in order to determine the effect, if any, of such transfer on our qualification as a REIT.

The foregoing restrictions continue to apply until the board of directors determines it is no longer in our best interest to attempt to, or to continue to, qualify as a REIT or that compliance is no longer required for REIT qualification.

The board of directors, in its sole discretion, may exempt (prospectively or retroactively) a person from the limitation on ownership of more than 9.8% of the value of HTA’s then aggregate outstanding shares of stock of any class or series (which includes common stock and any preferred stock HTA may issue) or more than 9.8% of the value or number of shares, whichever is more restrictive, of HTA’s then outstanding common stock. However, the board of directors may not exempt any person whose ownership of HTA’s outstanding stock would result in HTA being “closely held” within the meaning of Section 856(h) of the Code or otherwise would result in our failing to qualify as a REIT. In order to be considered by the board of directors for exemption, a person also must not own, directly or indirectly, an interest in any of our tenants (or a tenant of any entity which we own or control) that would cause us to own, directly or indirectly, more than a 9.9% interest in the tenant. The person seeking an exemption must represent to the satisfaction of the board of directors that it will not violate these two restrictions. The person also must agree that any violation or attempted violation of these restrictions will result in the automatic transfer of the shares of stock causing the violation to the share trust.

Any stockholder of record who owns more than 5.0% (or such lower level as required by the Code and the regulations thereunder) of the outstanding shares during any taxable year will be asked to deliver a statement or affidavit setting forth the name and address of such record owner, the number of shares beneficially owned by such stockholder, a description of the manner in which such shares are held and such additional information regarding the beneficial ownership of the shares as we may request in order to determine the effect, if any, of such actual or beneficial ownership on our qualification as a REIT and to ensure compliance with the ownership limit. In addition, any person who is a beneficial owner or constructive owner of shares of our stock and any person (including the stockholder of record) who is holding shares of our stock for a beneficial owner or constructive owner must, on request, disclose to us in writing such information as we may request in order to determine our status as a REIT or to comply, or determine our compliance, with the requirements of any taxing or governmental authority.