Take a look at some of Thursday's midday movers:
Facebook - Shares fell after the social-networking company said founder Mark Zuckerberg would sell 41.4 million shares worth about $2.3 billion to pay a tax bill as part of an offering by Facebook of 70 million shares.
Target - The discount retailer said hackers might have stolen data from some 40 million credit and debit cards of shoppers in the first three weeks of the holiday season. Its shares declined.
Carnival- Shares of the cruise line rose after it reported a small but surprising fourth-quarter profit.
McDonald's - Shares of the fast-food chain slid after its Japanese unit, which it owns a 50 percent stake in, said it plans to close 74 outlets in the country. It also cut its full-year forecast by more than half in the region.
Caterpillar - Shares fell after the company said machine sales fell 12 percent in November.
KB Home - Shares of the home builder slid after it posted weaker-than-expected fourth-quarter earnings and revenue.
Gogo - Shares rose after it entered into an in-flight wireless agreement with Aeromexico.
Amgen - Shares edged lower after it said its experimental cholesterol drug succeeded in a late-stage trial.
Accenture - The company's shares rallied after it posting better-than-expected first-quarter results as increased demand for outsourcing services helped offset weakness in its consulting business.
(Read More: See CNBC's Market Insider Blog)
—By CNBC's Rich Fisherman.
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