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WESTERN DIGITAL CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (Continued)
Stock Option Activity
The following table summarizes stock option activity under the Stock Plans over the last three fiscal years
(in millions, except per share amounts and remaining contractual lives):
Number
of Shares
Weighted Average
Exercise Price
Per Share
Weighted Average
Remaining
Contractual Life
(in years)
Aggregate
Intrinsic
Value
Options outstanding at July 2, 2010 . . . .
9.4
$20.61
Granted . . . . . . . . . . . . . . . . . . . . . . . . .
2.5
26.59
Exercised . . . . . . . . . . . . . . . . . . . . . . . .
(1.4)
16.83
Forfeited or expired . . . . . . . . . . . . . . . .
(0.3)
26.21
Options outstanding at July 1, 2011 . . . .
10.2
$22.49
Granted . . . . . . . . . . . . . . . . . . . . . . . . .
3.7
31.78
Assumed . . . . . . . . . . . . . . . . . . . . . . . .
4.2
8.47
Exercised . . . . . . . . . . . . . . . . . . . . . . . .
(2.1)
15.14
Forfeited or expired . . . . . . . . . . . . . . . .
(0.2)
28.76
Options outstanding at June 29, 2012 . .
15.8
$21.89
Granted . . . . . . . . . . . . . . . . . . . . . . . . .
3.4
43.51
Exercised . . . . . . . . . . . . . . . . . . . . . . . .
(6.8)
18.53
Forfeited or expired . . . . . . . . . . . . . . . .
(0.5)
32.72
Options outstanding at June 28, 2013 . .
11.9
$29.47
4.4
$389
Exercisable at June 28, 2013 . . . . . . . . . .
5.1
$24.05
3.1
$192
Vested and expected to vest after
June 28, 2013 . . . . . . . . . . . . . . . . . . . .
11.7
$29.29
4.4
$384
If an option has an exercise price that is less than the quoted price of the Company's common stock at the partic-
ular time, the aggregate intrinsic value of that option at that time is calculated based on the difference between the
exercise price of the underlying options and the quoted price of the Company's common stock at that time. As of
June 28, 2013, the Company had options outstanding to purchase an aggregate of 11.9 million shares with an exercise
price below the quoted price of the Company's stock on that date resulting in an aggregate intrinsic value of
$389 million at that date. During 2013, 2012 and 2011, the aggregate intrinsic value of options exercised under the
Stock Plans was $211 million, $53 million and $25 million, respectively, determined as of the date of exercise.
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