Check out which companies are making headlines after the bell Monday:
Stratasys - The computer hardware maker's shares tanked as much as 28 percent after it forecast 2014 full-year earnings that were well below Wall Street's estimates.
Anadarko Petroleum - The stock fell about 1 percent after the oil and gas producer missed analysts' earnings and revenue projections of 85 cents per share on $3.95 billion in revenue.
Cliffs Natural Resources - Shares rallied some 12 percent after the mining firm handed in adjusted earnings of $1 per share on $1.28 billion in revenue, boosted by increased revenues from the U.S. iron ore, where sales volumes rose 26 percent.
Hartford Financial - The insurance and financial holdings company topped earnings expectations by 3 cents a share, while revenue trailed. Shares edged lower after the announcement.
Rent-A-Center - Shares tumbled after the rent-to-own operator's fourth-quarter results missed estimates. The company also issues weak full-year 2015 earnings and revenue guidance, sending the stock down more than 17 percent in extended trading.
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