UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934 (Amendment No.     )

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HARRIS ASSOCIATES INVESTMENT TRUST
(Name of Registrant as Specified In Its Charter)
111 S. Wacker Drive, Suite 4600 Chicago, Illinois 60606-4319 (Address of Principal Executive Offices)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
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April XX, 2016

Dear Shareholder:

In March, we mailed you a Proxy Statement seeking your vote on several important proposals, including electing the Board of Trustees and improving the operations of the Oakmark Funds.

Our records show that we have not yet received your vote.

We understand that our shareholders are busy and sometimes inundated with paper.  Voting only takes a few minutes by phone, online, or by mailing the enclosed proxy form.  The Proxy Statement, which is available at Oakmark.com, describes the matters requiring your vote, including a comprehensive Question and Answer section.  You may also speak to us by telephone at 1-866-612-1831.

We really need your vote!  Voting promptly helps the Funds avoid the additional expense of further solicitation.  Submitting your vote now prevents multiple communications and phone calls that can become a nuisance.

Your vote is important.  The Board of Trustees unanimously recommends that shareholders vote “FOR” each proposal.

Please vote today.  Thank you for your prompt attention to this matter.  If you have already voted, we appreciate your participation.

Sincerely,

Kristi Rowsell

President, Oakmark Funds

The Oakmark Funds are distributed by Harris Associates Securities L.P. Member FINRA. Before investing in any Oakmark Fund, you should carefully consider the Fund’s investment objectives, risks, management fees and other expenses. This and other important information is contained in a Fund’s prospectus and summary prospectus. Please read the prospectus and summary prospectus carefully before investing. For more information, please visit Oakmark.com or call 1-800-OAKMARK (625-6275).

111 South Wacker Drive, Suite 4600, Chicago, IL 60606 · 312.646.3600 · Oakmark.com