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After-hours buzz: CHK, PSTG, SUNE & more

Check out the companies making headlines after the bell Wednesday:

Pure Storage shares popped after the bell even though it reported a loss in the fourth quarter. The technology company, which specializes in flash data storage and went public late last year, posted a loss of 12 cents per share, better than the 16 cents per share predicted by Wall Street, according to the Associated Press.

NYSE Traders on the floor.
Andrew Renneisen | Getty Images
NYSE Traders on the floor.

Shares of Chesapeake Energy pared gains after hours. Earlier in the day Aubrey McClendon, a founder and former chief executive of the gas producer, died in a single-car crash. A day before his death, McClendon was charged with conspiring to rig oil and natural gas bids.

Semiconductor company Semtech jumped in light-volume trading after reporting earnings of 2 cents per share in the latest quarter. CEO Mohan Maheswaran cited swelling demand in the communication and enterprise computing markets for the results, according to a company statement.

SunEdison's stock sank in extended trading after the renewable energy company reported it would suspend its quarterly dividend on preferred stock. Earlier Wednesday, The Wall Street Journal reported lenders were withholding SunEdison's funding for the the acquisition of a rooftop panel installer Vivint Solar, whose shares popped 3 percent after hours Wednesday.

— CNBC's Jacob Pramuk and Krysia Lenzo contributed to this report.