Market Insider

Midday movers: Tesla Motors, Newmont Mining & More

A Tesla Model S sedan is seen plugged into a new Tesla Supercharger.
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Take a look at some of Tuesday's midday movers:

Charter Communications - The company's shares rose after it said it was nominating a slate of 13 candidates for Time Warner Cable's board as it pressed a $38 billion hostile takeover attempt.

Tesla Motors - The electric car maker's shares topped $200 for the first time before pulling back.

Newmont Mining - Shares of the company and other gold miners including Barrick Gold, Goldcorp, AngloGold Ashanti and Yamana Gold rose along with the price of the metal.

TriQuint Semiconductor - The company spiked after Forbes cited two sources in the semiconductor sector as saying TriQuint had hired Goldman Sachs for advice in response to activist pressure from Starboard Value.

Green Mountain Coffee Roasters - Shares continued their strong run following news last week that Coca-Cola had taken a 10 percent stake in the company.

ConAgra Foods - Shares fell after the food company lowered its outlook for its fiscal year ending in May. It blamed weaker-than-expected volumes in its consumer foods segment.

Infoblox - The network automation company plummeted after it cut its second-quarter revenue outlook.

Lennar - Shares of the home builder fell, along with developer St Joe after Raymond James downgraded their shares.

KB Home - The home builder dropped after Raymond James also downgraded it to underperform from market perform.

Omnicom Group - The advertising company fell after saying merger costs weighed on fourth-quarter net income.

Zoetis - The animal health sciences provider declined after giving a disappointing outlook for 2014.

Groupon - moved lower after the discounts site said its senior vice president of product management would be leaving next month.

Dean Foods - The dairy processor slid after it warned of a possible first-quarter loss.

Xilinx - The designer of programmable devices rose after declaring an 11.5 percent rise in its quarterly dividend to 29 cents a share.

Mallinckrodt - The specialty pharmaceuticals company climbed after it said it would buy Cadence Pharmaceuticals for about $1.3 billion. Shares of Cadence Pharmaceuticals also gained.

Mosaic - The fertilizer company rose after it said it will buy back $1 billion of its shares.

Burlington Stores - The off-price apparel retailer gained after Morgan Stanley upgraded its shares to outperform.

Pioneer Natural Resources - The energy developer fell as investors focus on its disappointing estimated cored production growth.

Laredo Petroleum - Shares rose on record year-end reserves.

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—By CNBC's Rich Fisherman.

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