Unaudited Reconciliation of GAAP to Non-GAAP Financial Measures

(In thousands, except per share data)

Non-GAAP Income
Statement Items

Three Months Ended

September 30, 2017

GAAP

Measure

GAAP

Percent of
Revenue

Stock

Compensation
Expense

Intangible
Asset
Amortization

Acquisition
Related
Items

Non-GAAP

Measure

Non-GAAP

Percent of
Revenue

Revenues

$198,723

Gross margin

116,574

58.7%

$     281

$      --

$   --

$116,855

58.8%

Research and

   development

52,000

26.2%

5,411

5,187

--

41,402

20.8%

Selling, general and

   administrative

39,606

19.9%

5,663

1,647

161

32,135

16.2%

Operating income

24,968

12.6%

11,355

6,834

161

43,318

21.8%

Non-GAAP
Earnings Per Share

Three Months Ended

September 30, 2017

GAAP

Measure

Stock

Compensation
Expense*

Intangible
Asset
Amortization*

Acquisition
Related
Items*

Non-cash
Interest
Expense*

Income Tax
Adjustments

Non-GAAP

Measure

Net income

$19,949

$11,355

$6,834

$161

$2,674

$(1,796)

$39,177

Diluted shares

   outstanding

43,374

43,374

Diluted earnings

   per share

$    0.46

$    0.90

* Represents pre-tax amounts