Three Months Ended October 31,

Six Months Ended October 31,

2012

2011

2012

2011

Net loss

$

(11,242

)

$

(5,851

)

$

(29,781

)

$

(11,387

)

Less accretion of redeemable convertible preferred stock

—

(12

)

—

(25

)

Loss applicable to common stockholders

$

(11,242

)

$

(5,863

)

$

(29,781

)

$

(11,412

)

Loss per share, basic and diluted

$

(0.16

)

$

(0.30

)

$

(0.45

)

$

(0.60

)

Weighted average number of shares outstanding, basic and diluted

69,846

19,421

66,203

19,119

Potentially dilutive securities (1):

Outstanding stock options

7,299

5,583

7,828

5,057

Redeemable convertible preferred shares

—

27,897