Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2012

14. Quarterly Financial Data (Unaudited)

The following table is in thousands, except per share amounts:


Quarter Ended	March 31			June 30			September 30			December 31
2012
Product sales, net	$	—		$	875		$	1,055		$	1,377
Gross profit on product sales		—			827			1,031			1,358
Net loss		(11,034	)		(7,597	)		(8,293	)		(11,124	)
Basic and diluted net loss per share		(0.13	)		(0.09	)		(0.08	)		(0.11	)

2011
Net loss		(7,101	)		(8,882	)		(6,435	)		(9,936	)
Basic and diluted net loss per share		(0.09	)		(0.11	)		(0.08	)		(0.12	)

The table above does not reflect data for product sales and gross profit during any quarters of 2011 or for the quarter ended March 31, 2012 as we began commercial sales of our first product in April 2012.

- Definition

The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished.

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