FORM 4
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

MILLIGAN STEPHEN D 		2. Issuer Name and Ticker or Trading Symbol

WESTERN DIGITAL CORP [ WDC ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
President & CEO
(Last)          (First)          (Middle)

C/O WESTERN DIGITAL CORPORATION, 3355 MICHELSON DRIVE, SUITE 100 		3. Date of Earliest Transaction (MM/DD/YYYY)

7/24/2014
(Street)

IRVINE, CA 92612
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock   (1) 7/24/2014     A    129406.0   A $0.0   228931   D    
Common Stock   7/24/2014     M    4383.0   (2) A $0.0   233314   D    
Common Stock   7/24/2014     F    69808.0   (3) D $99.6   163506   D    
Common Stock   7/25/2014     S (4)    15996.0   D $99.4431   (5) 147510   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Dividend Equivalent Rights     (2) 7/24/2014     M         4446.916      (2)   (2) Common Stock   4446.916   $0.0   3498.7789   D    

Explanation of Responses:
( 1)  Represents shares issued as payment in respect of the vesting of a performance-based stock unit award.
( 2)  An amount equal to 61.5640 dividend equivalents were canceled without payment in connection with the determination of the achievement level of the performance-based restricted stock units to which the dividend equivalents relate. The remaining dividend equivalents were converted into, and paid in the form of, shares of the issuer's common stock on a one-for-one basis in connection with the vesting of the performance-based restricted stock units to which the dividend equivalents relate. A cash amount equal to $234.25 was also paid to the holder to settle fractional dividend equivalents in an aggregate amount of 2.352.
( 3)  Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e).
( 4)  The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2014.
( 5)  Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $99.04 to a high of $99.75. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
MILLIGAN STEPHEN D
C/O WESTERN DIGITAL CORPORATION
3355 MICHELSON DRIVE, SUITE 100
IRVINE, CA 92612 		X
President & CEO

Signatures
By: /s/ Van Huynh Attorney-in-Fact For: Stephen D. Milligan 7/28/2014
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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