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

Filed by the Registrant [X]

Filed by a Party other than the Registrant [  ]

Check the appropriate box:

[  ] Preliminary Proxy Statement

[  ] Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

[  ] Definitive Proxy Statement

[X] Definitive Additional Materials

[  ] Soliciting Material Pursuant to §240.14a-12

MANNING & NAPIER FUND, INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

[X] No fee required.

[  ] Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

1) Title of each class of securities to which transaction applies:

2) Aggregate number of securities to which transaction applies:

3) Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):

4) Proposed maximum aggregate value of transaction:

5) Total fee paid:

[  ] Fee paid previously with preliminary materials.

[  ] Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

1) Amount Previously Paid:

2) Form, Schedule or Registration Statement No.:

3) Filing Party:

4) Date Filed:

    290 Woodcliff Drive Fairport, New York 14450

May 3, 2018

Dear Shareholder,

As a shareholder in Class S series (the “Series”) of Manning & Napier Fund, Inc., you are eligible to vote at a special meeting of shareholders scheduled to be held on May 25, 2018. We need your proxy vote as soon as possible to allow us to proceed with important business of the Series.

The Funds’ Board of Directors recommends that shareholders of each Series vote FOR the meeting agenda.

Please help us by casting your proxy vote today.

Information about the proposal to be considered at the special meeting is provided in the proxy statement that has been sent to all shareholders. A copy of the proxy statement can be found at proxyonline.com/docs/manningandnapier2018.pdf. If you have any proxy-related questions, or would like to cast your proxy vote by phone, please call 1-800-581-5238 for assistance. Representatives are available Monday through Friday 9 a.m. to 11 p.m. and Saturday 10 a.m. to 6 p.m. Eastern Time. You can also vote by using any of the methods detailed below. Voting is quick and easy.

We very much appreciate your attention to this matter. Please help us by casting your vote today!

Sincerely,

    

Michele T. Mosca

President, Chairman and Director

How do I vote?

There are four convenient methods for casting your important proxy vote:

1. Vote by Phone with a Representative: You may cast your vote by telephone with a proxy representative by calling toll-free 1-800-581-5238. Representatives are available Monday through Friday 9 a.m. to 11 p.m. and Saturday 10 a.m. to 6 p.m. Eastern Time.

2. Vote by touch-tone phone: You may cast your vote by telephone using an automated system by calling the toll-free number found on the enclosed proxy card(s).

3. Vote online: You may cast your vote by visiting the web address located on the enclosed proxy card(s) and following the instructions on the website.

4. Vote by mail: You may cast your vote by signing, dating and mailing the enclosed proxy card(s) in the postage-prepaid return envelope provided.

We would be very grateful if you would use any one of the four voting methods listed above to ensure that your vote is recorded before May 11, 2018.