Basic and Diluted Net Loss Per Common Share (Tables)

9 Months Ended

Sep. 30, 2012

Basic and Diluted Net Loss per Common Share [Abstract]

Computation of basic and diluted net income per share

The following table sets forth the computation of basic and diluted net loss per common share:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011(1)			2012			2011(1)
Numerator:
Net loss	$	(10,182	)	$	(6,823	)	$	(27,758	)	$	(17,828	)
Denominator
Weighted average common shares
Denominator for basic calculation		23,825			74			21,984			124
Denominator for diluted calculation		23,825			74			21,984			124
Net loss per share:
Basic	$	(0.43	)	$	(92.21	)	$	(1.26	)	$	(143.77	)
Diluted	$	(0.43	)	$	(92.21	)	$	(1.26	)	$	(143.77	)

(1) Per share computations for the three and nine months ended September 30, 2011 are based on Private Synageva’s historic common stock, which excludes preferred stock.

Computations of diluted weighted average shares outstanding

The following shares of potentially dilutive securities have been excluded from the computations of diluted weighted average shares outstanding as the effect of including such securities would be antidilutive (in thousands):

	September 30,
	2012		2011
Options to purchase common stock		2,593		1,524
Convertible preferred stock		—		25,997
Convertible preferred stock warrants		—		31
		2,593		27,552