Exhibit 12.1

Statement of Computation of Ratio of Earnings to Fixed Charges and Ratio of Combined Fixed Charges

and Preferred Stock Dividends to Earnings

(In thousands)

	Nine Months Ended September 30,						Year Ended December 31,
	2013			2012			2012			2011			2010			2009			2008
Earnings:
Consolidated net loss before income tax	$	(83,053	)	$	(58,522	)	$	(83,132	)	$	(53,961	)	$	(16,420	)	$	(13,815	)	$	(14,853	)
Loss on equity method investment		5,541			1,193			1,824			—			—			—			—
Fixed charges		7,955			474			978			764			288			609			1,456
Capitalized interest, net of amortization		(831	)		(273	)		(273	)		—			—			—			—
Total earnings	$	(70,388	)	$	(57,128	)	$	(80,603	)	$	(53,197	)	$	(16,132	)	$	(13,206	)	$	(13,397	)
Fixed charges:
Interest expense	$	6,473		$	364		$	834		$	642		$	228		$	549		$	1,396
Debt fees		541			—			—			13			—			—			—
Debt discount		941			110			144			109			60			60			60
Total fixed charges	$	7,955		$	474		$	978		$	764		$	288		$	609		$	1,456
Ratio of Earnings to Fixed Charges		—			—			—			—			—			—			—
Deficiency of Earnings Available to Cover Fixed Charges	$	(78,343	)	$	(57,602	)	$	(81,581	)	$	(53,961	)	$	(16,420	)	$	(13,815	)	$	(14,853	)