Description of Capital Stock

The description below of our capital stock and provisions of our amended and restated certificate of incorporation and amended and restated bylaws are summaries and are qualified by reference to the amended and restated certificate of incorporation and the amended and restated bylaws, which are incorporated by reference as exhibits to the Annual Report on Form 10-K of which this Exhibit 4.3 is a part, and by the applicable provisions of Delaware law.

Our authorized capital stock consists of 675,000,000 shares of common stock, par value $0.001 per share, and 75,000,000 shares of preferred stock, par value $0.001 per share.

Voting rights. The holders of common stock are entitled to one vote per share on all matters to be voted upon by the stockholders.

Dividend rights. Subject to preferences that may be applicable to any outstanding preferred stock, the holders of common stock are entitled to receive ratably such dividends, if any, as may be declared from time to time by the board of directors out of funds legally available therefor.

Rights upon liquidation. In the event of our liquidation, dissolution or winding up, the holders of our common stock are entitled to share ratably in all assets remaining after payment of liabilities, subject to prior distribution rights of preferred stock, if any, then outstanding.

Other rights. The holders of our common stock have no preemptive or conversion rights or other subscription rights. There are no redemption or sinking fund provisions applicable to the common stock.

Our board of directors has the authority to issue the preferred stock in one or more series and to fix the rights, preferences, privileges and restrictions thereof, including dividend rights, dividend rates, conversion rights, voting rights, terms of redemption, redemption prices, liquidation preferences and the number of shares constituting any series or the designation of such series, without further vote or action by the stockholders.

The issuance of preferred stock may have the effect of delaying, deferring or preventing a change in control of AssetMark without further action by the stockholders and may adversely affect the voting and other rights of the holders of common stock. At present, no shares of preferred stock are outstanding and we have no plans to issue any of the preferred stock.

The Registration Rights Agreement that came into effect in connection with our initial public offering grants to HIIHL, a holder of more than 5% of our outstanding capital stock and an affiliate of certain of our directors, certain registration rights with respect to its shares of our common stock (the “registrable securities”), subject to certain exceptions. All shares of our common stock held by HIIHL are entitled to the registration rights described below. The registration of shares of our common stock pursuant to the exercise of such registration rights would enable HIIHL to sell these shares without restriction under the Securities Act when the applicable registration statement is declared effective. We will pay the registration expenses, other than underwriting discounts and commissions and internal administrative and similar costs of the selling stockholder, of HIIHL associated with the registrable securities registered pursuant to the demand and piggyback registration rights described below.

Generally, in an underwritten offering, the managing underwriter, if any, has the right, subject to specified conditions, to limit the number of shares such holders may include. The demand and piggyback registration rights described below will expire on the first date on which neither HIIHL nor an HIIHL affiliate to which HIIHL has transferred or assigned all or a portion of its rights under the Registration Rights Agreement holds any registrable shares.

Demand registration rights. Parties to the Registration Rights Agreement holding in the aggregate at least 25% of the registrable securities then outstanding may request that we file a registration statement to register the offer and

sale of their registrable securities. We are not required to effect a demand registration unless the aggregate gross proceeds expected to be received from the sale of the registrable shares by the requesting holders equals or exceeds $60,000,000, and we are not required to support more than one demand registration in any rolling six-month period or more than four demand registrations in total (other than demand registrations to be effected pursuant to a registration statement on Form S-3, for which an unlimited total number of demand registrations are permitted). We have the right to defer a demand registration in certain circumstances once during any period of six consecutive months and for not more than 180 days in any 12-month period.

Piggyback registration rights. If we propose to register the offer and sale of shares of our common stock or other equity securities under the Securities Act, other than with respect to a demand registration, a registration statement on Form S-4, Form S-8 or similar forms, and certain other exceptions, the holders of registrable securities are entitled to notice of the registration and have the right to include their registrable securities in such registration, subject to certain marketing and other limitations, including limitations that the underwriters may impose on the number of share included in the offering.

The foregoing summary is qualified in its entirety by reference to the Registration Rights Agreement, the form of which is incorporated by reference as an exhibit to the Annual Report on Form 10-K of which this Exhibit 4.3 is a part.

Some provisions of our amended and restated certificate of incorporation and amended and restated bylaws could make the following more difficult:

•acquisition of control of us by means of a proxy contest or otherwise, or

•removal of our incumbent officers and directors.

These provisions, as well as our ability to issue preferred stock, are designed to discourage coercive takeover practices and inadequate takeover bids. These provisions are also designed to encourage persons seeking to acquire control of us to first negotiate with our board of directors. We believe that the benefits of increased protection give us the potential ability to negotiate with the proponent of an unfriendly or unsolicited proposal to acquire or restructure us, and that the benefits of this increased protection outweigh the disadvantages of discouraging those proposals, because negotiation of those proposals could result in an improvement of their terms.

Election of directors; no cumulative voting. Our board of directors consists of nine directors, or such other number as determined from time to time by our board of directors. Under Delaware law, the right to vote cumulatively does not exist unless the certificate of incorporation specifically authorizes cumulative voting. Our amended and restated certificate of incorporation does not authorize cumulative voting.

Removal of directors; vacancies. Our amended and restated certificate of incorporation provides that directors may be removed with or without cause so long as HTSC or any of its affiliates collectively own at least 50% of the voting power of the stock of our company entitled to vote generally in the election of directors, and that directors may only be removed for cause, and only by the affirmative vote of holders of at least a majority of all outstanding shares of stock of our company entitled to vote thereon, voting together as a single class, if HTSC or any of its affiliates collectively own less than 50% in voting power of the stock of our company entitled to vote generally in the election of directors. Any vacancy occurring on the board of directors and any newly created directorship may be filled only by a majority of the remaining directors in office.

Staggered board. Our board of directors is divided into three classes serving staggered three-year terms. At each annual meeting of stockholders, directors will be elected to succeed the class of directors whose terms have expired. This classification of our board of directors could have the effect of increasing the length of time necessary to change the composition of a majority of the board of directors. In general, at least two annual meetings of stockholders will be necessary for stockholders to effect a change in a majority of the members of the board of directors.

Limits on written consents. Our amended and restated certificate of incorporation provides that holders of our common stock will not be able to act by written consent without a meeting, at any time when HTSC or any of its affiliates collectively own less than 50% in voting power of the stock of our company entitled to vote generally in the election of directors.

Special stockholder meetings. Our amended and restated certificate of incorporation and our amended and restated bylaws provide that special meetings of our stockholders may be called only by the chairman of our board of

directors or a majority of the directors. Our amended and restated certificate of incorporation and our amended and restated bylaws prohibit the conduct of any business at a special meeting other than as specified in the notice for such meeting; provided, however, that so long as HTSC or any of its affiliates collectively own at least 50% of the voting power of the stock of our company entitled to vote generally in the election of directors, any action required or permitted to be taken at an annual or special meeting may be taken by written consent without a meeting, without prior notice and without a vote.

Amendment of certificate of incorporation. The provisions of our amended and restated certificate of incorporation described above under the sections titled “—Election of directors; no cumulative voting,” “—Removal of directors; vacancies,” “—Staggered board,” “—Limits on written consents” and “—Special stockholder meetings,” and the voting thresholds described in this section, may be amended, altered, repealed or rescinded only by the affirmative vote of the holders of at least two-thirds in voting power of all outstanding shares of stock of our company entitled to vote thereon, voting together as a single class. The affirmative vote of holders of at least a majority of the voting power of our outstanding shares of stock will generally be required to amend other provisions of our certificate of incorporation.

Amendment of bylaws. Any amendment, alteration, rescission or repeal of certain provisions of our amended and restated bylaws requires either (i) the affirmative vote of a majority of directors present at any regular or special meeting of the board of directors called for that purpose; or (ii) the affirmative vote of the holders of two-thirds of the voting power of our outstanding shares of voting stock, voting together as a single class.

Delaware business combination statute. From and after the time at which HTSC and its affiliates own, in the aggregate, less than 15% of the voting power of all outstanding shares of the stock of our company entitled to vote generally in the election of directors, we will elect to be subject to Section 203 of the DGCL, which regulates corporate acquisitions. Section 203 prevents an “interested stockholder,” which is defined generally as a person owning 15% or more of a corporation’s voting stock, or any affiliate or associate of that person, from engaging in a broad range of “business combinations” with the corporation for three years after becoming an interested stockholder unless:

•the board of directors of the corporation had previously approved either the business combination or the transaction that resulted in the stockholder’s becoming an interested stockholder;

•upon completion of the transaction that resulted in the stockholder’s becoming an interested stockholder, that person owned at least 85% of the voting stock of the corporation outstanding at the time the transaction commenced, other than statutorily excluded shares; or

•following the transaction in which that person became an interested stockholder, the business combination is approved by the board of directors of the corporation and holders of at least two-thirds of the outstanding voting stock not owned by the interested stockholder.

Under Section 203, the restrictions described above also do not apply to specific business combinations proposed by an interested stockholder following the announcement or notification of designated extraordinary transactions involving the corporation and a person who had not been an interested stockholder during the previous three years or who became an interested stockholder with the approval of a majority of the corporation’s directors, if such extraordinary transaction is approved or not opposed by a majority of the directors who were directors prior to any person becoming an interested stockholder during the previous three years or were recommended for election or elected to succeed such directors by a majority of such directors.

Section 203 may make it more difficult for a person who would be an interested stockholder to effect various business combinations with a corporation for a three-year period. Section 203 also may have the effect of preventing changes in our management and could make it more difficult to accomplish transactions which our stockholders may otherwise deem to be in their best interests.

Other limitations on stockholder actions. Our amended and restated bylaws also impose some procedural requirements on stockholders who wish to:

•make nominations in the election of directors;

•propose that a director be removed;

•propose any repeal or change in our bylaws; or

•propose any other business to be brought before an annual or special meeting of stockholders.

Under these procedural requirements, to bring a proposal before a meeting of stockholders, a stockholder must deliver timely notice of a proposal pertaining to a proper subject for presentation at the meeting to our corporate secretary along with the following:

•a description of the business or nomination to be brought before the meeting and the reasons for conducting such business at the meeting;

•the stockholder’s name and address;

•any material interest of the stockholder in the proposal;

•the number of shares beneficially owned by the stockholder and evidence of such ownership; and

•the names and addresses of all persons with whom the stockholder is acting in concert and a description of all arrangements and understandings with those persons, and the number of shares such persons beneficially own.

To be timely, a stockholder must generally deliver notice:

•in connection with an annual meeting of stockholders, not less than 90 nor more than 120 days prior to the date on which the annual meeting of stockholders was held in the immediately preceding year, but in the event that the date of the annual meeting is more than 30 days before or more than 70 days after the anniversary date of the preceding annual meeting of stockholders, a stockholder notice will be timely if received by us not earlier than the 120th day prior to the annual meeting and not later than the close of business on the later of (1) the 90th day prior to the annual meeting and (2) the 10th day following the day on which we first publicly announce the date of the annual meeting; or

•in connection with the election of a director at a special meeting of stockholders, not less than 90 nor more than 120 days prior to the date of the special meeting, but in no event later than the 10th day following the day on which we first publicly announce the date of the special meeting and the nominees proposed by our board to be elected.

To submit a nomination for our board of directors, a stockholder must also submit any information with respect to the nominee that we would be required to include in a proxy statement, as well as some other information. If a stockholder fails to follow the required procedures, the stockholder’s proposal or nominee will be ineligible and will not be voted on by our stockholders.

Our amended and restated certificate of incorporation, as amended by the certificate of amendment thereto provides that no director or officer will be personally liable to us or our stockholders for monetary damages for breach of fiduciary duty as a director or officer, except as required by applicable law, as in effect from time to time. Currently, Delaware law requires that liability be imposed for the following:

•any breach of the director or officer’s duty of loyalty to our company or our stockholders;

•any act or omission by the director or officer not in good faith or which involved intentional misconduct or a knowing violation of law;

•unlawful payments of dividends or unlawful stock repurchases or redemptions by the director as provided in Section 174 of the DGCL;

•any transaction from which the director or officer derived an improper personal benefit; and

•any breach of fiduciary duty claims brought by us or derivative claims brought by our stockholders in our name against any officer.

Any amendment to, or repeal of, these provisions will not eliminate or reduce the effect of these provisions in respect of any act, omission or claim that occurred or arose prior to that amendment or repeal. If the DGCL is amended to provide for further limitations on the personal liability of directors of corporations, then the personal liability of our directors will be further limited to the greatest extent permitted by the DGCL.

As a result, neither we nor our stockholders have the right, through stockholders’ derivative suits on our behalf, to recover monetary damages against any director for breach of fiduciary duty as a director, and we do not have the right to recover monetary damages against any officer for breach of fiduciary duty as an officer, including breaches resulting from grossly negligent behavior, except in the situations described above.

Such limitation of liability does not apply to liabilities arising under federal securities laws and does not affect the availability of equitable remedies such as injunctive relief or rescission.

Our amended and restated bylaws provide that, to the fullest extent permitted by law, we will indemnify any officer or director of our company against all damages, claims and liabilities arising out of the fact that the person is or was our director or officer, or served any other enterprise at our request as a director, officer, employee, agent or fiduciary. Amending this provision will not reduce our indemnification obligations relating to actions taken before an amendment.

Further, our amended and restated certificate of incorporation provides that we will indemnify, to the fullest extent permitted by law, any person who is or was 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, by reason of the fact that he or she is or was one of our directors or officers or is or was serving at our request as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise. Our amended and restated certificate of incorporation also provides that we must advance expenses incurred by or on behalf of a director or officer, and that we may advance expenses incurred by or on behalf of an employee, trustee or agent, in advance of the final disposition of any civil or criminal action, suit or proceeding. In addition, we have entered into an indemnification agreement with each of our directors and executive officers. With certain exceptions, these agreements provide for indemnification for related expenses including attorneys’ fees, judgments, fines and settlement amounts incurred by any of these individuals in any action or proceeding. We believe that these provisions in our amended and restated certificate of incorporation and our amended and restated bylaws and indemnification agreements are necessary to attract and retain qualified persons as directors and officers.

We also maintain standard policies of insurance under which coverage is provided to our directors and officers against loss rising from claims made by reason of breach of duty or other wrongful act, and to us with respect to payments which may be made by us to such directors and officers pursuant to the above indemnification provision or otherwise as a matter of law.

The indemnification provisions in our amended and restated certificate of incorporation and amended and restated bylaws may discourage stockholders from bringing a lawsuit against our directors for breach of their fiduciary duty. They may also reduce the likelihood of derivative litigation against our directors and officers, even though an action, if successful, might benefit us and other stockholders. Further, a stockholder’s investment may be adversely affected to the extent that we pay the costs of settlement and damage awards against directors and officers as required by these indemnification provisions.

Insofar as indemnification for liabilities arising under the Securities Act may be permitted for directors, executive officers or persons controlling us, we have been informed that, in the opinion of the SEC, such indemnification is against public policy as expressed in the Securities Act and is therefore unenforceable.

Our amended and restated certificate of incorporation provides that, unless we consent in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware is, to the fullest extent permitted by applicable law, the sole and exclusive forum for the following types of action or proceedings under Delaware statutory or common law: (i) any derivative action or proceeding brought on our behalf, (ii) any action asserting a claim of breach of fiduciary duty owed by any of our directors, officers, employees, agents or trustees to us or our stockholders, (iii) any action asserting a claim against us or any director or officer or other employee of ours arising pursuant to any provision of the DGCL, our amended and restated certificate of incorporation or our amended and restated bylaws or (iv) any action asserting a claim against us or any director or officer or other employee of ours that is governed by the internal affairs doctrine, in each case subject to such Court of Chancery having personal jurisdiction over the indispensable parties named as defendants therein. This exclusive forum provision does not apply to suits brought to enforce a duty or liability created by the Exchange Act or any other claim for which the U.S. federal courts have exclusive jurisdiction.

Our amended and restated certificate of incorporation further provides that, to the fullest extent permitted by applicable law, unless we consent in writing to the selection of an alternative forum, the federal district courts of the

United States are the exclusive forum for resolving any complaint asserting a cause of action arising under the federal securities laws of the United States.

Any person or entity purchasing or otherwise acquiring any interest in shares of our capital stock is deemed to have notice of and consented to the foregoing forum selection provisions. These exclusive-forum provisions may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for disputes with us or our directors, officers, employees or agents, which may discourage such lawsuits against us and such persons.

Our common stock is listed on the NYSE under the symbol “AMK.”

The transfer agent and registrar for our common stock is Computershare Trust Company, N.A. The transfer agent and registrar’s address is 150 Royall Street, Canton, Massachusetts 02021-1011.