After-hours buzz: Facebook, Shutterfly & more

Traders work on the floor of the New York Stock Exchange.
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Traders work on the floor of the New York Stock Exchange.

Check out the companies making headlines after the bell Tuesday:

Shares of Facebook were slightly higher after CEO Mark Zuckerberg said he plans to retain his majority voting position in the company for the "foreseeable future." He will give away no more than $1 billion in shares each of the next three years for charity purposes.

Shutterfly fell after it announced its chief executive plans to step down effective February 2016. The digital photo retailer said it is looking for a replacement.

General Electric got a boost after it said its reorganization began on Tuesday. The plan will reduce the the size of its financial services businesses, the company said.

SunEdison was higher after hedge fund Appaloosa Management sent a letter to SunEdison yieldco TerraForm Power, saying the company's move to buy higher-risk projects from the parent company raises concerns for TerraForm's stakeholders. TerraForm was also higher.

Network management services provider, Infoblox, posted first-quarter profit and revenue that beat estimates, helped by strong demand for its security products and services. Stock ticked higher.

— Reuters contributed to this report.