Highmark Funds DEFA14A Additional proxy soliciting materials

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

(Amendment No. __)

Filed by the Registrant þ

Filed by a Party other than the Registrant o

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o Preliminary Proxy Statement

o Confidential, For Use of the Commission Only (As Permitted by Rule 14a-6(e)(2))

o Definitive Proxy Statement

þ Definitive Additional Materials

o Soliciting Material under Rule 14a-12

HighMark Funds

(Name of Registrant as Specified In Its Charter)

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þ No fee required

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PLEASE VOTE NOW

WE MUST RECEIVE YOUR VOTE BY AUGUST 27, 2013

IMPORTANT NOTICE REGARDING YOUR INVESTMENT IN:

HighMark Balanced Fund

HighMark Bond Fund

HighMark California Intermediate Tax-Free Bond Fund

HighMark Cognitive Value Fund

HighMark Enhanced Growth Fund

HighMark Equity Income Fund

HighMark Geneva Mid Cap Growth Fund

HighMark Geneva Small Cap Growth Fund

HighMark International Opportunities Fund

HighMark Large Cap Core Equity Fund

HighMark Large Cap Growth Fund

HighMark National Intermediate Tax-Free Bond Fund

HighMark NYSE Arca Tech 100 Index Fund

HighMark Short Term Bond Fund

HighMark Small Cap Core Fund

HighMark Value Fund

HighMark Wisconsin Tax-Exempt Fund

Recently, we sent you proxy material regarding the Special Meeting of Shareholders that is scheduled for August 28, 2013. The Funds’ records indicate that we have not received your vote. We urge you to vote as soon as possible in order to allow the Fund(s) in which you hold shares to obtain a sufficient number of votes to hold the meeting as scheduled.

If you have any questions or would like to vote, please call the number listed below:

1- 855-325-6673

Your vote is important regardless of the size of your Fund holdings. Even if you have redeemed your shares, we still need your vote since you were a shareholder as of the record date. Please vote promptly so your vote can be received prior to the August 28, 2013 Special Meeting of Shareholders.

The Fund has made it very easy for you to vote. Choose one of the following methods:


VOTE ONLINE	VOTE BY PHONE	SPEAK WITH A SPECIALIST
Visit the website noted on the enclosed proxy card and enter the control number that also appears on that card. Follow the on-screen directions to place your vote.	Call the toll-free touch-tone number listed on your proxy card. Have your proxy card with control number available. Follow the touch-tone prompts to vote.	Call the toll free phone number above Monday – Friday, 9:30 AM to 9 PM ET to speak with a proxy specialist.

THANK YOU FOR VOTING

HMLT Nobo/Reg