The top after-market Nasdaq gainers Thursday were Ambarella Inc, LHC Group Inc, Rigel Pharmaceuticals Inc, Copart and Finisar Corporation. The top after-market Nasdaq losers were Maxwell Technologies Inc, Skullcandy Inc, AngioDynamics and RPX Corporation.

Gainers

Ambarella Inc (NASDAQ:AMBA) shares climbed 9.02 percent to $13.05 in post-market trading. The company reported revenue for the fourth quarter of fiscal 2013 at $31.5 million, up 28.3 percent from $24.6 million in the same period in fiscal 2012 and against analysts’ estimate of $29.20 million.

LHC Group Inc (NASDAQ:LHCG) shares rose 5.62 percent to $21.24 in post-market trading. The company shares lost 5.32 percent in regular trading Thursday.

Rigel Pharmaceuticals Inc (NASDAQ:RIGL) shares advanced 4.99 percent to $7.57 in post-market trading. The company shares lost 4.76 percent in regular trading Thursday.

Copart Inc (NASDAQ:CPRT) shares gained 4.23 percent to $33.51 in post-market trading. The company shares have a 52-week trading range of $22.59-$37.47 and a market capitalization of $4.01 billion.

Finisar Corporation (NASDAQ:FNSR) shares surged 3.09 percent to $16.33 in post-market trading. The shares of the company went up after it reported third quarter adjusted EPS of $0.17 after the bell Thursday, down from $0.23 in the previous year. The consensus estimate was for EPS of $0.16. The company expects to report fourth quarter adjusted EPS of $0.15 to $0.19. The consensus estimate is for EPS of $0.17.

Losers

Maxwell Technologies Inc (NASDAQ:MXWL) shares slumped 12.51 percent to $7.97 in post-market trading. The company Thursday said the audit committee of its board of directors concluded Mar.1, 2013, the previously issued financial statements contained in its annual report on Form 10-K for the year ended Dec. 31, 2011, and all unaudited quarterly reports on Form 10-Q in 2011 and 2012 (collectively, the "Prior Periods"), as well its selected financial data for the related periods should no longer be relied upon because of errors in those financial statements. The errors relate to the timing of recognition of revenue from sales to certain distributors.

Skullcandy Inc (NASDAQ:SKUL) shares plunged 8.78 percent to $6.13 in post-market trading. The company reported fourth quarter non-GAAP adjusted net income of $0.47 per share after the bell Thursday, which was flat with the prior year result and said it expects to report a loss for the first quarter.

AngioDynamics Inc (NASDAQ:ANGO) shares lost 4.45 percent to $12.02 in post-market trading. The company stock has a 52-week trading range of $10.00-$12.93 and a market capitalization of $439.97 million.

RPX Corporation (NASDAQ:RPXC) shares dropped 3.44 percent to $12.65 in post-market trading. The shares gained 3.56 percent in regular trading. The company shares have a 52-week trading range of $8.55-$18.50 and a market capitalization of $666.17 million.

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