Amended and Restated Investment Advisory Agreement For Subadviser Harbor Mid Cap Value Fund

Delivery of Fund Documents. The Adviser has furnished you with copies, properly certified or authenticated, of each of the following:

Agreement and Declaration of Trust of the Trust, as in effect on the date hereof (the “Declaration of Trust”).

By-Laws of the Trust as in effect on the date hereof (the “By-Laws”).

Resolutions of the Trustees selecting the Adviser as investment adviser and you as a sub-investment adviser and approving the form of this Agreement.

Advisory Services. You will regularly provide the Fund with advice concerning the investment management of that portion of the Fund’s assets that are allocated to you, which advice shall be consistent with the investment objectives and policies of the Fund as set forth in the Fund’s Prospectus and Statement of Additional Information and any investment guidelines or other instructions received in advance and in writing from the Adviser. The Board of Trustees or the Adviser may, from time to time, make additions to and withdrawals from the assets of the Fund allocated to you. You will determine what securities shall be purchased for such portion of the Fund’s assets, what securities shall be held or sold by such portions of the Fund’s assets, and what portion of such assets shall be held uninvested, subject always to the provisions of the Trust’s Declaration of Trust and By-Laws and the Investment Company Act and Investment Advisers Act and to the investment objectives, policies and restrictions (including, without limitation, the requirements of Subchapter M of the Internal Revenue Code of 1986, as amended (the “Code”) for qualification as a regulated investment company) of the Fund, as each of the same shall be from time to time in effect as set forth in the Fund’s Prospectus and Statement of Additional Information, or any investment guidelines or other instructions received in writing and in advance from the Adviser, and subject, further, to such policies and instructions as the Board of Trustees may from time to time establish and deliver to you. In accordance with paragraph 5, you or your agent shall arrange for the placing of all orders for the purchase and sale of portfolio securities with brokers or dealers selected by you for that portion of the Fund’s assets for which you serve as sub-investment adviser.

Allocation of Charges and Expenses. You will bear your own costs of providing services hereunder. You will not be required to pay any expenses of the Fund.

Compensation of the Subadviser. For all investment management services to be rendered hereunder, the Adviser will pay to you a fee, as set forth in Schedule A attached hereto, monthly in arrears, based on a percentage of the average daily net assets (as defined below) of the portion of the Fund that you managed during the month. “Average daily net assets” means the average of the values placed on the net assets of the portion of the Fund that you managed on each day on which the net asset value of the Fund’s portfolio is determined. The net assets of the Fund are valued in the manner specified in the Fund’s Prospectus and Statement of Additional Information by the Fund’s custodian. If determination of the value of net assets is suspended for any particular business day, then for the purposes of this paragraph 4, the value of the net assets of the Fund as last determined shall be deemed to be the value of the net assets. If the Fund’s custodian determines the value of the net assets of the Fund’s portfolio more than once on any day, the last such determination thereof on that day shall be deemed to be the sole determination thereof on that day for the purposes of this paragraph 4.

Avoidance of Inconsistent Position and Brokerage. In connection with purchases or sales of portfolio securities for the account of the portion of the Fund allocated to you, neither you nor any of your directors, officers, employees or affiliates will act as a principal or agent or receive any compensation in connection with the purchase or sale of investment securities by the Fund other than the compensation provided for in this Agreement, except as permitted by the Investment Company Act and approved by the Board of Trustees. You or your agent shall arrange for the placing of all orders for the purchase and sale of portfolio securities for the portion of the Fund’s account allocated to you with brokers or dealers selected by you. In the selection of such brokers or dealers and the placing of such orders, you are directed at all times to seek best execution for the Fund. It is also understood that it is desirable for the Fund that you have access to supplemental investment and market research and security and economic analyses provided by certain brokers who may execute brokerage transactions at a higher cost to the Fund than may result when allocating brokerage to other brokers on the basis of seeking the most favorable price and efficient execution. Therefore, you are authorized to place orders for the purchase and sale of securities for the Fund with such certain brokers, subject to review by the Board of Trustees from time to time with respect to the extent and continuation of this practice. It is understood that the services provided by such brokers may be useful to you in connection with your services to other clients. If any occasion should arise in which you give any advice to clients of yours concerning the Shares of the Fund, you will act solely as investment counsel for such clients and not in any way on behalf of the Fund.

Limitation of Liability of Subadviser. You shall not be liable for any error of judgment or mistake of law or for any loss suffered by the Fund or the Adviser in connection with the matters to which this Agreement relates, except a loss resulting from willful misfeasance, bad faith or gross negligence on your part or from reckless disregard by you of your obligations and duties under this Agreement.

Duration and Termination of this Agreement. This Agreement shall remain in force until October 1, 2020 and from year to year thereafter, but only so long as such continuance, and the continuance of the Adviser as investment adviser of the Fund, is specifically approved at least annually in the manner prescribed in the Investment Company Act and the rules and regulations thereunder, subject however, to such exemptions as may be granted by the Securities and Exchange Commission by any rule, regulation or order. This Agreement may, on 30 days’ written notice, be terminated at any time without penalties charged to the Fund, by the Board of Trustees, by vote of a majority of the outstanding voting securities of the Fund, by the Adviser, or by you. This Agreement will terminate immediately upon the assignment of the investment advisory agreement between the Adviser and the Trust, on behalf of the Fund. In interpreting the provisions of this Agreement, the definitions contained in Section 2(a) of the Investment Company Act (particularly the definitions of “interested person”, “assignment” and “majority of the outstanding voting securities”), as from time to time amended, shall be applied, subject however, to such exemptions as may be granted by the Securities and Exchange Commission by any rule, regulations or order.

Amendment of this Agreement. No provision of this Agreement may be changed, waived, discharged or terminated orally, but only by an instrument in writing signed by the party against whom enforcement of the change, waiver, discharge or termination is sought, and no material amendment of this Agreement shall be effective until approved by the Board of Trustees, including a majority of the Trustees who are not interested persons of the Adviser or you or of the Trust.

Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of Illinois.

Miscellaneous. It is understood and expressly stipulated that neither the holders of Shares of the Trust or the Fund nor the Trustees shall be personally liable hereunder. The name “Harbor Fund” is the designation of the Trustees for the time being under the Declaration of Trust and all persons dealing with the Trust or the Fund must look solely to the property of the Trust or the Fund for the enforcement of any claims against the Trust or the Fund as neither the Trustees, officers, agents or shareholders assume any personal liability for obligations entered into on behalf of the Trust or the Fund. No series of the Trust shall be liable for any claims against any other series or assets of the Trust.

Prohibition on Consulting with other Subadvisers. You are not permitted to consult with any other subadviser to Harbor Fund with respect to transactions by the Fund in securities or other assets.

Disclosure. You do not guarantee the future performance of the assets or any specific level of performance, the success of any investment decision or strategy that may be used, or the success of your overall management of the Fund. Investment decisions made hereunder are subject to various market, currency, economic and business risks, and that those investment decisions will not always be profitable. You will manage only the securities, cash and other investments as allocated to you and in making investment decisions you will not consider any other securities, cash or other investments owned by the Fund.

Legal Actions. You will not advise the Trustees or the Fund or act on their respective behalf in any legal proceedings, including bankruptcies, involving securities held or previously held by the Fund or the issuers of these securities.