Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response... 0.5
	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 ^*

CAMPBELL STEVEN GLENN

2. Date of Event Requiring Statement (MM/DD/YYYY) 11/3/2015

3. Issuer Name and Ticker or Trading Symbol

WESTERN DIGITAL CORP [WDC]

(Last) (First) (Middle)

C/O WESTERN DIGITAL CORPORATION, 3355 MICHELSON DRIVE SUITE 100

4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director _____ 10% Owner
___ X ___ Officer (give title below) _____ Other (specify below)
EVP & Chief Technology Officer /

(Street)

IRVINE, CA 92612

(City) (State) (Zip)

5. 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 Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	34646 ⁽¹⁾	D

*Table II - Derivative Securities Beneficially Owned ( e.g.* , puts, calls, warrants, options, convertible securities)**
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivate Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Dividend Equivalent Rights	⁽²⁾	⁽²⁾	Common Stock	337.1205	⁽²⁾	D
Employee Stock Option (right to buy)	5/16/2013 ⁽³⁾	5/16/2019	Common Stock	15153	$38.63	D
Employee Stock Option (right to buy)	9/6/2013 ⁽⁴⁾	9/6/2019	Common Stock	28005	$43.11	D
Employee Stock Option (right to buy)	8/14/2014 ⁽⁵⁾	8/14/2020	Common Stock	23496	$68.49	D
Employee Stock Option (right to buy)	9/11/2015 ⁽⁶⁾	9/11/2021	Common Stock	15642	$100.06	D
Employee Stock Option (right to buy)	8/4/2016 ⁽⁷⁾	8/4/2022	Common Stock	22970	$84.39	D

Explanation of Responses:
( 1)	Includes 14,008 unvested awards of restricted stock units. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
( 2)	The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof.
( 3)	The option vested 25% one year from the grant date of 5/16/2012, and an additional 6.25% vested at the end of each three-month period through 11/16/2015. The remaining shares subject to the option will vest at 6.25% at the end of each three-month period until fully vested on 5/16/2016.
( 4)	The option vested 25% one year from the grant date of 9/6/2012, and an additional 6.25% vested at the end of each three-month period through 9/6/2015. The remaining shares subject to the option will vest at 6.25% at the end of each three-month period until fully vested on 9/6/2016.
( 5)	The option vested 25% one year from the grant date of 8/14/2013, and an additional 6.25% vested at the end of each three-month period through 11/14/2015. The remaining shares subject to the option will vest at 6.25% at the end of each three-month period until fully vested on 8/14/2017.
( 6)	The option vested 25% one year from the grant date of 9/11/14. The remaining shares subject to the option will vest at 6.25% at the end of each three-month period until fully vested on 9/11/18.
( 7)	The option vests 25% on the first anniversary of the grant date of 8/4/15 and 6.25% at the end of each three-month period thereafter.

Remarks:
Exhibit List 24: Power-of-Attorney

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
CAMPBELL STEVEN GLENN C/O WESTERN DIGITAL CORPORATION 3355 MICHELSON DRIVE SUITE 100 IRVINE, CA 92612			EVP & Chief Technology Officer

Signatures
/s/ Sandra Garcia Attorney-in-Fact for Steven G. Campbell		11/16/2015
^** 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 5(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.
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