Check out which companies are making headlines after the bell Wednesday:
3M and Avery Dennison - The two companies have terminated the definitive agreement under which 3M would have purchased Avery’s office and consumer products business. (Click here for after-hours quotes.)
Marriott - The hotel chain posted earnings of 44 cents a share on revenue of $2.73 billion, topping expectations for 40 cents a share on sales of $2.65 billion. But the company handed in a weaker-than-expected current-quarter profit guidance. Still, shares gained in extended-hours trading. (Click here for after-hours quote.)
(Read More: Stocks Log Gains on Economic Data; H-P Skids)
Applied Materials - The tech company announced it will cut 6 to 9 percent of its global workforce, affecting 900 to 1,300 positions. Shares edged lower in extended-hours trading. (Click here for after-hours quote.)
NuVasive - The medical-device maker cut its third-quarter revenue guidance to $147 million, disappointing analysts who expected the company to hand in sales of $154 million. Shares plunged in extended-hours trading. (Click here for after-hours quote.)
Sysco - The food products distributor announced that Wayne Shurts has joined the company as EVP and Chief Technology Officer. Shurts was previously the CIO of Supervalu . (Click here for after-hours quotes.)
Morgan Stanley initiated coverage of Cubist Pharmaceuticals , Neurocrine Biosciences and NPS Pharmaceuticals with an "overweight" rating. Meanwhile, the firm started coverage of Optimer Pharmaceuticals with an "underweight" rating. (Click here for after-hours quotes.)
CollabRx - The data-analytics company announced a multi-year partnership agreement with Life Technologies , sending shares sharply higher in extended-hours trading. (Click here for after-hours quotes.)
(Read More:CNBC's Market Insider Blog)
—By CNBC’s JeeYeon Park (Follow JeeYeon on Twitter: @JeeYeonParkCNBC)
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