The top after-market NASDAQ Stock Market gainers are: MicroStrategy, Fortinet, Universal Display, Team, and Education Management. The top after-market NASDAQ Stock Market losers are: Charming Shoppes, Isle of Capri Casinos, Stereotaxis, Pacific Biosciences of California, and Clearwire.

Gainers

MicroStrategy Inc. (MSTR) stock grew 4.46 percent to $149.57 in the after-market trading. The company's chairman and chief executive officer Michael Saylor has sold 55,472 shares at average price of $144.93 for $8.04 million. He acquired the shares upon conversion of Class B shares on a 1-for-1 basis.

Fortinet Inc. (FTNT) stock gained 3.91 percent to $24.43 in the after-market trading. The stock began trading on Thursday's regular trading after previously announced 2-for-1 split.

Universal Display Corp. (PANL) stock increased 3.30 percent to $42 in the after-market trading.

Team Inc. (TISI) stock gained 3.03 percent to $22.45 in the after-market trading.

Education Management Corp. (EDMC) stock rose 2.94 percent to $25.49 in the after-market trading. Shares of education companies jumped during Thursday's regular trading in reaction to President Barack Obama Administration's announcement on final gainful employment regulations, which apparently is perceived as a positive for the growth of for-profit colleges. As per the final version of the gainful employment regulations, the threat to lower tuition aid to some programs has been softened.

Losers

Charming Shoppes Inc. (CHRS) stock plunged 31.82 percent to $3 in the after-market trading. The stock has 29.21 percent of potential upside -- given its price of $4.45 and analysts' target of $5.75, Finviz reported citing to analysts estimates. The stock has performed poorly over the last month, losing 11.64 percent.

Isle of Capri Casinos Inc. (ISLE) stock fell 5.67 percent to $8.49 in the after-market trading.

Stereotaxis Inc. (STXS) stock slid 5.49 percent to $3.10 in the after-market trading.

Pacific Biosciences of California, Inc. (PACB) stock declined 4.82 percent to $10.96 in the after-market trading.

Clearwire Corp. (CLWR) stock decreased 4.15 percent to $4.16 in the after-market trading. The company said it will transition parts of the Company's current customer care operations to TeleTech Holdings, Inc., in connection with the expansion of an existing agreement. Under the agreement TeleTech will be responsible for managing day-to-day customer care services for the Company's customers.

Clearwire said about 700 employees in Las Vegas, Nevada and Milton, Florida will immediately transition to TeleTech. The company will retain about 180 personnel between both locations. Those employees remaining with the company will be responsible for a variety of back office activities, including, among other tasks, operations, workforce management, process management and vendor management.