Top After-Market NASDAQ Movers (Electro Scientific, PetMed, Universal, Enzon, Hologic, Proofpoint, Casella, PDL, Liberty)

The top after-market NASDAQ gainers Wednesday were Electro Scientific Industries Inc, PetMed Express Inc, Universal Display Corporation, Enzon Pharmaceuticals Inc and Hologic Inc.

The top after-market NASDAQ losers Wednesday were Proofpoint Inc, Casella Waste Systems Inc, PDL BioPharma Inc and Liberty Global Inc.

Gainers

Electro Scientific Industries Inc (ESIO) shares climbed 11.78 percent to $11.77 in post-market trading. The company Monday declared a special dividend ahead of a possible increase in 2013 federal tax rates.

PetMed Express Inc (PETS) shares gained 6.06 percent to $12.25 in post-market trading. The company announced Monday that its Board of Directors had declared a special dividend of $1.00 per share on its common stock. The dividend would be payable Dec 24, 2012, to shareholders of record at the close of business Dec 14, 2012.

Universal Display Corporation (PANL) shares rose 3.42 percent to $24.20 in post-market trading. The stock has a 52-week low of $21.55, a 52-week high of $48.07 and $1.09 billion in market capitalization.

Enzon Pharmaceuticals Inc (ENZN) shares advanced 5.51 percent to $2.49 in post-market trading. The stock has a 52-week trading range of $5.78 - $7.87 and a market capitalization of 306.93 million.

Hologic Inc (HOLX) shares went up by 2.714 percent to $19.08 in post-market trading. The stock has a 52-week low of $16.18, a 52-week high of $22.16 and $4.98 billion in market capitalization.

Losers

Proofpoint Inc (PFPT) shares declined 5.95 percent to $10.40 in post-market trading. The shares have a 52-week trading range of $9.77-$17.75 and a market capitalization of 352.60 million.

Casella Waste Systems Inc (CWST) shares slumped 4.87 percent to $4.10 in post-market trading.

PDL BioPharma Inc (PDLI) shares dropped 2.46 percent to $7.53 in post-market trading. The stock has a 52-week low of $5.76, a 52-week high of $8.43 and $1.08 billion in market capitalization.

Liberty Global Inc (LBTYA) shares fell 2.42 percent to $56.04 in post-market trading. The shares gained over 3 percent in regular trading.