Check out which companies are making headlines after the bell Monday:
Breitburn Energy Partners - The developer of oil and gas properties fell after saying it had commenced a public offering.
CalAmp - The provider of wireless communications jumped in after-hours trading after reporting quarterly earnings and revenue that topped estimates.
Container Store - The retailer slid in extended trading after posting weak second-quarter revenue and full-year guidance.
GT Advanced Technologies - Apple's partner in a sapphire glass plant in Arizona filed for bankruptcy on Monday. The company's shares, slammed during the regular session, climbed in heavy volume in after-hours trade.
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