The top after-market Nasdaq gainers Friday were Solazyme Inc, MannKind Corporation, MAKO Surgical Corp, Legacy Reserves LP and XenoPort Inc. The top after-market Nasdaq losers were: Momenta Pharmaceuticals Inc, Biosante Pharmaceuticals Inc, The Bon-Ton Stores Inc, Netgear Inc and Horizon Pharma Inc.

Gainers

Solazyme Inc (SZYM) shares climbed 6.72 percent to $ 14.45 in after-hours trading.  The company   shares have a 52-week low of $ 7.68, a 52-week high of $27.47and $817.49 million in market capitalization.

Shares of MannKind Corporation (MNKD) rose 5.66 percent in post-market session to close at $ 2.24. MannKind is a development-stage biopharmaceutical company. The company shares have a 52-week low of $ 1.57, a 52-week high of $4.30 and $ 355.78 million in market capitalization.   

MAKO Surgical Corp (MAKO) shares surged 3.22 percent to $ 26.90 in after-hours trading Friday.  The medical device company markets its robotic arm solution and orthopedic implants for orthopedic procedures called MAKOplasty.  The company's shares have a 52-week low of $20.90, a 52-week high of $45.15 and $1.11 billion in market capitalization.   

Legacy Reserves LP (LGCY) shares advanced 3.01 percent to $24.98 in post-market trading. Its shares have a 52-week low of $22.00, a 52-week high of $30.85 and $1.16 billion in market capitalization.   

XenoPort Inc (XNPT) shares gained 24.98 percent and reached $3.01 in after-hours trading.

Losers

Momenta Pharmaceuticals Inc (MNTA) slumped 21.81 percent to $13.30 in post-market session Friday. The shares have a 52-week low of $10.15, a 52-week high of $21.00 and $855.69 million in market capitalization.

Biosante Pharmaceuticals Inc (BPAX) shares plunged 4.55 percent to $ 2.52 in post-market session.  BioSante Pharmaceuticals, Inc. (BioSante) is a specialty pharmaceutical company focused on developing products for female sexual health and oncology.  The company shares have a 52-week low of $2.00, a 52-week high of $24.12 and $53.33 million in market capitalization.

The Bon-Ton Stores Inc (BONT) shares lost 2.52 percent in after-hours trading to reach $ 6.57. Its shares gained 5.31 percent in regular market trading.  

NETGEAR Inc (NTGR) stocks dropped 2.10 percent to $ 32.18 in after-hours trading. The company shares surged 5.59 percent in regular hours trading.  

Horizon Pharma Inc (HZNP) shares declined 1.90 percent to $5.17 in after-hours trading after gaining 5.61 percent in regular trading session.  The carrier-neutral internet data center services provider has a 52-week low of $ 3.05, a 52-week high of $9.34 and a market capitalization of 177.61 million.