KLA-Tencor Corporation

Condensed Consolidated Unaudited Supplemental Information

(In thousands, except per share data)

Reconciliation of GAAP Net Income to Non-GAAP Net Income

Three months ended

Nine months ended

March 31,
2014

December 31,
2013

March 31,
2013

March 31,
2014

March 31,
2013

GAAP net income

$

203,581

$

139,246

$

166,382

$

454,024

$

408,379

Adjustments to reconcile GAAP net income to non-GAAP net income

Acquisition related charges

a

3,828

3,599

4,180

11,596

15,308

Restructuring, severance and other related charges

b

—

2,002

2,845

3,239

5,979

Income tax effect of non-GAAP adjustments

c

(1,193)

(1,777)

(2,212)

(4,642)

(6,583)

Discrete tax items

d

—

—

—

—

(3,514)

Non-GAAP net income

$

206,216

$

143,070

$

171,195

$

464,217

$

419,569

GAAP net income per diluted share

$

1.21

$

0.83

$

0.98

$

2.70

$

2.41

Non-GAAP net income per diluted share

$

1.23

$

0.85

$

1.01

$

2.76

$

2.48

Shares used in diluted shares calculation

167,989

168,206

169,180

168,355

169,425