Washington, D.C. 20549







Filed by the Registrant  ☒                             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
Definitive Additional Materials
Soliciting Material Pursuant to §240.14a-11(c) or §240.14a-2


(Name of Registrant as Specified In Its Charter)

Payment of Filing Fee (Check the appropriate box):

No fee required.
Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.

Title of each class of securities to which transaction applies:



Aggregate number of securities to which transaction applies:



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):



Proposed maximum aggregate value of transaction:



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.

Amount Previously Paid:



Form, Schedule or Registration Statement No.:



Filing Party:



Date Filed:






*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the
Stockholder Meeting to Be Held on May 31, 2017


      Meeting Information




Meeting Type: Annual Meeting

For holders as of: April 07, 2017

      Date: May 31, 2017          Time: 10:00 AM PDT
 (A10 LOGO)     Location:

Company's Executive Offices
3 West Plumeria Drive
San Jose, CA 95134



SAN JOSE, CA 95134







You are receiving this communication because you hold shares in the above named company.


This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).


We encourage you to access and review all of the important information contained in the proxy materials before voting.

      See the reverse side of this notice to obtain proxy materials and voting instructions.


0000329679_1       R1.0.1.15




    Before You Vote    

How to Access the Proxy Materials

    Proxy Materials Available to VIEW or RECEIVE:  
    1. Notice & Proxy Statement 2. Annual Report  

How to View Online:

Have the information that is printed in the box marked by the arrow (GRAPHIC) (located on the following page) and visit: www.proxyvote.com.


How to Request and Receive a PAPER or E-MAIL Copy:

If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:

      1)  BY INTERNET: www.proxyvote.com  
      2)  BY TELEPHONE: 1-800-579-1639  
      3)  BY E-MAIL*: sendmaterial@proxyvote.com  
    * If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow (GRAPHIC) (located on the following page) in the subject line.  

Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before May 17, 2017 to facilitate timely delivery.




    How To Vote    

Please Choose One of the Following Voting Methods 


Vote In Person: Many stockholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares.


Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow (GRAPHIC)  available and follow the instructions. 


Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include proxy card.




0000329679_2       R1.0.1.15




Voting items  
The Board of Directors recommends you vote FOR the following:
1. To elect two Class III directors to serve until the 2020 annual meeting of stockholders and until their successors are duly elected and qualified:  

1A     Lee Chen        
1B     Alan S. Henricks              


The Board of Directors recommends you vote FOR the following proposal:


To ratify the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for our fiscal year ending December 31, 2017.


NOTE: To transact such other business as may properly come before the Annual Meeting or any adjournments or postponements thereof.


0000329679_3     R1.0.1.15