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Midday movers: Alstom, CarMax, Sprint & More

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Take a look at some of Friday's midday movers:

Alstom - The French engineering company gained after the French government said it would accept General Electric's bid, with conditions. France will buy a 20 percent stake in Alstom.

CarMax - The auto retailer surged after posting better-than-expected first-quarter profit and revenue.

Hercules Offshore - The drilling and marine services supplier fell after saying it would forgo a three-year contract in Angola.

Kite Pharma - The biotech soared in its market debut after pricing 7.5 million shares at $17 a piece.

Medtronic - The medical device maker fell after disclosing in a regulatory filing that it was hacked in 2013.

Merrimack Pharmaceuticals - The company declined after saying Sanofi would no longer market its cancer drug.

Molson Coors Brewing - The beer maker climbed after Morgan Stanley upgraded the company to equal weight from underweight.

Nucor - The steelmaker said it projected second-quarter earnings at the low end of forecasts.

Owens Corning -The supplier of building materials fell after it lowered its earnings outlook for the year.

Regeneron Pharmaceuticals - The company fell after BMO Capital said in a note that 10 percent of patients using its bestselling drug were were turning to another drug.

Sprint - The wireless carrier fell after saying it would offer unlimited voice or texting for $20 a month at Wal-Mart Stores.

Targa Resources Partners - The midstream energy company declined after saying it was no longer in merger talks with Energy Transfer Equity.

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—By CNBC's Rich Fisherman.Questions? Comments? Email us at