Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2014

Total Compensation Cost from Share-Based Payments

The Company’s statements of operations included total compensation cost from share-based payments for the three-month and nine-month periods ended September 30, 2014 and 2013, as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
In thousands	2014		2013		2014		2013
Compensation cost from:
Stock options	$	3,583	$	4,935	$	12,427	$	13,047
Stock and stock units		3,961		3,553		11,787		15,147
Purchases of common stock at a discount		94		142		369		365
	$	7,638	$	8,630	$	24,583	$	28,559
Compensation cost included in:
Research and development expenses	$	3,229	$	3,913	$	10,570	$	12,329
Selling, general and administrative expenses		4,409		4,717		14,013		16,230
	$	7,638	$	8,630	$	24,583	$	28,559

Stock Option Activity

Stock option activity under the Company’s stock plans for the nine-month period ended September 30, 2014 was as follows:

	Number of Shares			Weighted Average Exercise Price Per Share
Options outstanding, January 1, 2014		10,379,668		$	10.83
Granted		1,493,560		$	7.35
Forfeited		(1,333,975	)	$	13.83
Exercised		(632,521	)	$	4.44
Options outstanding, September 30, 2014		9,906,732		$	10.31

Stock and stock units

Stock and Stock Unit Activity

Stock and stock unit activity under the Company’s stock plans for the nine-month period ended September 30, 2014 was as follows:

	Number of Shares			Weighted Average Grant Date Fair Value
Outstanding, January 1, 2014		2,047,600		$	14.18
Granted/Awarded		2,479,500		$	7.35
Forfeited		(269,668	)	$	9.33
Vested or restrictions lapsed		(646,313	)	$	13.55
Outstanding, September 30, 2014		3,611,119		$	9.96