Pre-Open Movers 5/18: (PSUN) (WGO) (CRM) Higher; (ADSK) (SQNM) (ARUN) Lower (more...)

Below are stocks making major moves in pre-open trading Friday:

HIGHER:

• Pacific Sunwear Of California (NASDAQ: PSUN) 22% HIGHER; Q1 results
  
• Winnebago Industries Inc. (NYSE: WGO) 15% HIGHER; North Street Capital boosts takeover offer
  
• Osiris Therapeutics Inc. (NASDAQ: OSIR) 14% HIGHER; received market authorization from Health Canada to market its stem cell therapy Prochymal
  
• Millennial Media Inc. (NYSE: MM) 7% HIGHER; upgraded
  
• Salesforce.com, Inc. (NYSE: CRM) 6% HIGHER; tops Q1 views, solid guidance
  
• Boston Scientific Corporation (NYSE: BSX) 5% HIGHER; FDA approval and market launch of the Epic Vascular Self-Expanding Stent System.
  
• Yahoo! Inc. (NASDAQ: YHOO) 5% HIGHER; close to deal to sell Alibaba stake
  
• Marvell Technology Group Ltd (NASDAQ: MRVL) 3% HIGHER; Q1 results, initiates dividend, raises buyback
  
• Kinder Morgan, Inc. (NYSE: KMI) 3% HIGHER; will replace El Paso Corp. (NYSE: EP) in the S&P 500 index
  
• Sprint Nextel Corp. (NYSE: S) 2% HIGHER; upgraded
  
• Gap Inc. (NYSE: GPS) 2% HIGHER; Q1 results

LOWER:

• Autodesk, Inc. (Nasdaq: ADSK) 10% LOWER; Q1 results
  
• Sequenom Inc., (Nasdaq: SQNM) 7.2% LOWER; Coventry cancels test coverage
  
• Aruba Networks, Inc. (NASDAQ: ARUN) 4% LOWER; Q3 results
  
• Acorda Therapeutics, Inc. (NASDAQ: ACOR) 2% LOWER; new Sell rating
  
• SIRIUS XM Radio Inc. (Nasdaq: SIRI) 1% LOWER; CEO Mel Karmazin disclsoed the sale of 13,700,000 shares

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