Pre-Open Movers 5/7: (GTSI) (VRTX) (INSM) Higher; (CTSH) (GGC) (AIG) Lower (more...)

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

HIGHER:

• GTSI Corp. (Nasdaq: GTSI) 47% HIGHER; acquired
  
• Vertex Pharmaceuticals (Nasdaq: VRTX) 47% HIGHER; Reports Statistically Significant Data from VX-809 and KALYDECO Phase 2 in Lung Function
  
• Insmed (Nasdaq: INSM) 42% HIGHER; Says Clinical Hold on ARIKACE in CF Patients Lifted
  
• Newell Rubbermaid (NYSE: NWL) 2% HIGHER; upgraded
  
• Lear Corp. (NYSE: LEA) 1% HIGHER; upgraded
  
• Pepsico, Inc. (NYSE: PEP) 1% HIGHER; upgraded
  
• Berkshire Hathaway Inc. (NYSE: BRK-B) 0.5% HIGHER; reports results and annual meeting this weekend

LOWER

• Cognizant Technology (Nasdaq: CTSH) 12% LOWER; Q1 results, weak guidance
  
• Georgia Gulf (NYSE: GGC) 10% LOWER; Westlake Chemical (NYSE: WLK) Terminates Talks To Acquire Georgia Gulf
  
• AIG (NYSE: AIG) 7% LOWER; Treasury Priced 163.9M Secondary Offering at $30.50/Share
  
• DigitalGlobe, Inc. (NYSE: DGI) 5% LOWER; rejects GeoEye (Nasdaq: GEOY) takeover offer
  
• Carnival (NYSE: CCL) 2% LOWER; downgraded
  
• Procter & Gamble Co. (NYSE: PG) 1% LOWER; downgraded

---

Serious News for Serious Traders! Try StreetInsider.com Premium Free!

---

You May Also Be Interested In

• Kaiser Aluminum names Fred Stephan as CEO, effective November 2026
• After-Hours Movers: AMAT, DLO, GLOB, YSS, ETON
• This consumer stock is trading at "discounted valuation", Morgan Stanley says