Western Digital (WDC) Form 3 WESTERN DIGITAL / STEVEN GLENN CAMPBELL ownership change

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

CAMPBELL STEVEN GLENN

(Last) (First) (Middle)

C/O WESTERN DIGITAL CORPORATION

3355 MICHELSON DRIVE SUITE 100

(Street)

IRVINE CA 92612

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
11/03/2015

3. Issuer Name and Ticker or Trading Symbol
WESTERN DIGITAL CORP [ WDC ]

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

5. If Amendment, Date of Original Filed (Month/Day/Year)

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	34,646(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Dividend Equivalent Rights	(2)	(2)	Common Stock	337.1205	(2)	D
Employee Stock Option (right to buy)	05/16/2013(3)	05/16/2019	Common Stock	15,153	38.63	D
Employee Stock Option (right to buy)	09/06/2013(4)	09/06/2019	Common Stock	28,005	43.11	D
Employee Stock Option (right to buy)	08/14/2014(5)	08/14/2020	Common Stock	23,496	68.49	D
Employee Stock Option (right to buy)	09/11/2015(6)	09/11/2021	Common Stock	15,642	100.06	D
Employee Stock Option (right to buy)	08/04/2016(7)	08/04/2022	Common Stock	22,970	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

	/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).
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