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SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has
duly caused this Annual Report on Form 10-K to be signed on its behalf by the undersigned, thereunto duly
authorized.
WESTERN DIGITAL CORPORATION
By:
/s/
W
OLFGANG
U. N
ICKL
Wolfgang U. Nickl
Executive Vice President and Chief Financial Officer
Dated: August 16, 2013
Pursuant to the requirements of the Securities Exchange Act of 1934, this Annual Report on Form 10-K has
been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates
indicated.
Signature
Title
Date
/s/
S
TEPHEN
D. M
ILLIGAN
Stephen D. Milligan
President and Chief Executive Officer
(Principal Executive Officer),
Director
August 16, 2013
/s/
W
OLFGANG
U. N
ICKL
Wolfgang U. Nickl
Executive Vice President and Chief
Financial Officer (Principal
Financial Officer and Principal
Accounting Officer)
August 16, 2013
/s/
T
HOMAS
E. P
ARDUN
Thomas E. Pardun
Chairman of the Board
August 16, 2013
/s/
K
ATHLEEN
A. C
OTE
Kathleen A. Cote
Director
August 16, 2013
/s/
H
ENRY
T. D
E
N
ERO
Henry T. DeNero
Director
August 16, 2013
/s/
W
ILLIAM
L. K
IMSEY
William L. Kimsey
Director
August 16, 2013
/s/
M
ICHAEL
D. L
AMBERT
Michael D. Lambert
Director
August 16, 2013
/s/
L
EN
J. L
AUER
Len J. Lauer
Director
August 16, 2013
/s/
M
ATTHEW
E. M
ASSENGILL
Matthew E. Massengill
Director
August 16, 2013
/s/
R
OGER
H. M
OORE
Roger H. Moore
Director
August 16, 2013
/s/
K
ENSUKE
O
KA
Kensuke Oka
Director
August 16, 2013
/s/
A
RIF
S
HAKEEL
Arif Shakeel
Director
August 16, 2013
/s/
M
ASAHIRO
Y
AMAMURA
Masahiro Yamamura
Director
August 16, 2013
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