Stockholders' Equity

6 Months Ended

Jun. 30, 2014

Stockholders' Equity

11. Stockholders’ Equity

Common Stock

On January 29, 2013, the Company sold 16,489,893 shares of its common stock in an underwritten public offering at a purchase price of $19.60 per share. Net proceeds of this offering, after underwriting discounts and commissions and expenses, were approximately $310.0 million.

On December 14, 2011, the Company filed a shelf registration statement with the Securities and Exchange Commission (“SEC”), for the issuance of an unspecified amount of common stock, preferred stock, various series of debt securities and/or warrants to purchase any of such securities, either individually or in units, from time to time at prices and on terms to be determined at the time of any such offering. This registration statement was effective upon filing and will remain in effect for up to three years from filing.

Changes in Stockholders’ Equity

The changes in stockholders’ equity for the six-month period ended June 30, 2014 were as follows:

$ in thousands	Common Stock				Additional Paid-in Capital			Accumulated Other Comprehensive Income (Loss)			Accumulated Deficit			Total
	Shares		Amount
Balance, January 1, 2014		185,896,080	$	186	$	1,238,859		$	(1,535	)	$	(1,051,993	)	$	185,517
Issuance of common stock pursuant to ARIAD stock plans		966,397		1		2,262									2,263
Stock-based compensation						16,945									16,945
Payment of tax withholding obligations related to stock-based compensation						(558	)								(558	)
Equity component of convertible debt						40,896									40,896
Purchase of convertible bond hedge						(43,220	)								(43,220	)
Sale of warrants						27,580									27,580
Net loss									84			(106,743	)		(106,659	)
Balance, June 30, 2014		186,862,477	$	187	$	1,282,764		$	(1,451	)	$	(1,158,736	)	$	122,764