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Share-based compensation
 6 Months Ended
Jun. 30, 2017
Share-based compensation  
Share-based compensation

 

Note 8 - Share-based compensation

 

Restricted share awards are issued to employees that are subject to specified restrictions and a risk of forfeiture. The restrictions typically lapse over one to five years and may entitle holders to dividends and voting rights. Other types of share-based compensation include performance share awards, performance share units, and restricted share units (collectively with restricted share awards, “restricted shares”), as well as options to purchase common stock.

 

Share-based compensation expense was recognized in the following line items in the Consolidated Statements of Operations for the three and six months ended June 30, 2017 and 2016:

 

 

 

Three months ended June 30,

 

Six months ended June 30,

 

 

 

2017

 

2016

 

2017

 

2016

 

 

 

(in thousands)

 

Cost of sales

 

$
500

 

$
486

 

$
1,157

 

$
1,032

 

Research and development

 
708

 
940

 
1,137

 
2,039

 

Selling, general, and administrative

 
3,368

 
2,576

 
6,468

 
5,319

 

Restructuring

 
841

 

—

 
841

 

—

 

Acquisition costs

 
4,203

 

—

 
4,203

 

—

 

 

 

 

 

 

 

 

 

 

 

Total

 

$
9,620

 

$
4,002

 

$
13,806

 

$
8,390

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For the six months ended June 30, 2017, equity activity related to stock options was as follows:

 

 

 

Number of

 

Weighted
Average

 

 

 

Shares

 

Exercise Price

 

 

 

(in thousands)

 

 

 

Balance - December 31, 2016

 
1,576

 

$
35.18

 

Granted

 

—

 

—

 

Exercised

 
(18

)
30.03

 

Expired or forfeited

 
(120

)
37.14

 

 

 

 

 

 

 

Balance - June 30, 2017

 
1,438

 
35.08

 

 

 

 

 

 

 

 

For the six months ended June 30, 2017, equity activity related to non-vested restricted shares and performance shares was as follows:

 

 

 

 

 

Weighted
Average

 

 

 

Number of

 

Grant Date

 

 

 

Shares

 

Fair Value

 

 

 

(in thousands)

 

 

 

Balance - December 31, 2016

 
1,949

 

$
23.85

 

Granted

 
649

 
29.67

 

Assumed from Ultratech

 
338

 
31.75

 

Vested

 
(549

)
25.98

 

Forfeited

 
(130

)
25.95

 

 

 

 

 

 

 

Balance - June 30, 2017

 
2,257

 
25.94