The top after-market NASDAQ gainers on Thursday were Servicesource International Inc, Unilife Corporation, Ubiquiti Networks Inc, Sequenom Inc, and Erickson Air-Crane Inc. The top after-market NASDAQ losers were ONCOTHYREON Inc, Allscripts Healthcare Solutions, Santarus Inc and magicJack VocalTec Ltd.

Gainers          

Servicesource International Inc. (NASDAQ:SREV) shares climbed 13.88 percent to $6.40 in post-market trading. The company on Thursday reported a first adjusted EPS loss of $0.02 per share versus the mean analyst estimate of loss of $0.04. Revenues stood at $61.1 million compared to analysts’ estimate of $60.38 million.

Unilife Corporation (NASDAQ:UNIS) shares climbed 13.51 percent to $2.10 in post-market trading. Unilife Corporation announced on Thursday first quarter loss per share of $0.17 versus a loss of $0.21 per share a year ago. The company also announced the signing of a Customization and Commercial Supply Agreement with a U.S. pharmaceutical company for the EZMix dual-chamber syringe.

Ubiquiti Networks Inc. (NASDAQ:UBNT) shares surged 12.91 percent to $18.19 in post-market trading. The company reported third quarter profit of $20.7 million or $0.23 per share, down 26 percent from $27.9 million or $0.30 per share in the same period last year. However, adjusted earnings for the quarter were $21.1 million or $0.24 per share. Analysts polled by Thomson Reuters expected the company to earn $0.22 per share for the quarter.

Sequenom Inc. (NASDAQ:SQNM) shares gained 9.24 percent to $3.90 in post-market trading. The company reported revenues of $38.5 million for the first quarter of 2013, an increase of 158 percent compared to revenues of $14.9 million for the first quarter of 2012.

Erickson Air-Crane Inc (NASDAQ:EAC) shares advanced 8.59 percent to $22.75 in post-market trading. The company on Thursday reported first quarter EPS of $0.01, $0.14 better than the analysts' estimate of a loss of $0.13 per share. Revenues for the quarter stood at $36.9 million versus the consensus estimate of $33.1 million.

Losers

ONCOTHYREON Inc. (NASDAQ:ONTY) shares tumbled 9.77 percent to $2.31 in post-market trading. The company reported first quarter loss of $0.14 per share, worse than the analysts' estimate of a loss of $0.13 per share.

Santarus Inc. (NASDAQ:SNTS) shares slumped 5.79 percent to $19.03 in post-market trading. The company announced a proposed secondary underwritten public offering of shares of its common stock. All shares will be offered by Cosmo Technologies Limited. Santarus will not sell any shares or receive any proceeds from the offering. 

Allscripts Healthcare Solutions Inc. (NASDAQ:MDRX) shares declined 5.20 percent to $13.13 in post-market trading. The company reported first quarter EPS of $0.09, $0.05 worse than analysts' estimate of $0.14. Revenues for the quarter came in at $348 million versus than the consensus estimate of $368.11 million.

magicJack VocalTec Ltd. (NASDAQ:CALL) shares fell 4.21 percent to $18.43 in post-market trading. The company shares gained more than 9 percent in regular trading on Thursday.