UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

(Rule 14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

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

Exchange Act of 1934 (Amendment No.    )

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¨	Preliminary Proxy Statement	¨	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
¨	Definitive Proxy Statement
þ	Definitive Additional Materials
¨	Soliciting Material Pursuant to § 240.14a-12

SANDISK CORPORATION

(Name of Registrant as Specified in its Charter)

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

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*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on June 12, 2013

Meeting Information

SANDISK CORPORATION

Meeting Type: Annual Meeting

For holders as of: April 15, 2013

Date: June 12, 2013

Time: 8:00 AM PDT

Location: SANDISK CORPORATION

951 SanDisk Drive

Milpitas, California 95035

You are receiving this communication because you hold

SANDISK CORPORATION

shares in the above named company.

951 SanDisk Drive

Milpitas, CA 95035

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.

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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 (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

(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 29, 2013 to facilitate timely delivery.

How To Vote

Please Choose One of the Following Voting Methods

Vote In Person: Many shareholder 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 available and follow the instructions.

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

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Voting items

The Board of Directors recommends you vote FOR each of the nominees listed in proposal 1:

1. Election of Directors

Nominees

01 Michael E. Marks

02 Kevin DeNuccio

03 Irwin Federman

04 Steven J. Gomo

05 Eddy W. Hartenstein

06 Dr. Chenming Hu

07 Catherine P. Lego

08 Sanjay Mehrotra

4 To pass an advisory resolution to approve the compensation of the Company’s Named Executive Officers.

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

The Board of Directors recommends you vote FOR proposals 2, 3 and 4:

2 To approve the SanDisk Corporation 2013 Incentive Plan and the initial reservation of 20,000,000 shares of the Company’s common stock to be issued under the SanDisk Corporation 2013 Incentive Plan.

3 To ratify the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 29, 2013.

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