Check out which companies are making headlines after the bell Tuesday:
Apple - The tech giant's market value rose to $710.70 billion after it announced it had partnered with First Solar to build a $850 million renewable energy farm. First Solar shares were last up about 3 percent in extended trading, while Apple shares were little changed.
Western Union - The consumer finance firm topped earnings estimates, but revenue trailed. The company also upped its quarterly dividend by 24 percent and handed in full-year 2015 guidance that was above consensus. The stock rose more than 3 percent in after-hours trading.
Pier 1 Imports - Shares plunged 31 percent after the home decor and furniture retailer disclosed the resignation of its chief financial officer and updated its full-year earnings and sales guidance.
Akamai - The cloud solutions provider reported better-than-expected fourth-quarter results, sending its shares about 3 percent higher in after-hours trading.
NCR Corp - Shares fell about 3 percent after the computer hardware provider handed in full-year guidance below Wall Street's expectations.
Seattle Genetics - Shares edged up about 1 percent after the biotech firm announced that it expects to spend between $250 million and $275 million on research and development.