Take a look at some of Thursday's after-hours buzz:
LinkedIn plunged more than 25 percent in extended-hours trade after the professional networking Web service lowered guidance for the year. The firm reported earnings that slightly beat estimates on revenue that missed.
AIG edged higher in after-hours trade following a quarterly earnings report that beat analysts' expectations. The largest U.S. commercial insurer also announced it would repurchase up to $3.5 billion in stock.
Altera gained more than 5 percent in extended-hours trading on a Reuters report that Intel agreed not to launch a hostile takeover until after June 1. Sources told the news wire that the agreement explains why Intel did not launch an offer for Altera's shares after an acquisition deal failed. Intel shares ticked lower.
Gilead Sciences gained more than 3 percent in after-hours trade after the pharmaceutical giant beat Street expectations for quarterly earnings and revenue.
Monsanto gained more than 3.5 percent in after-hours trade following a Bloomberg report that the world's largest seed company approached Syngenta about a takeover. Shares of Syngenta leaped more than 10 percent.
Visa fell more than 2 percent in extended-hours trade after the payment processing giant reported a decline in net income. In a conference call, the firm's CFO noted a 2.5 percent impact from currency and lowered guidance for the third quarter. The company did report a 7.8 percent quarterly operating revenue as more customers paid with card.
Western Union gained more than 2.5 percent in after-hours trade, reversing an initial decline on a quarterly earnings report that showed a decline in revenue as the company earned lower fees in its biggest business of consumer remittance. Transaction volumes rose 3 percent.
Solar stocks SunPower and First Solar plunged in extended-hours trade after posting quarterly losses. SunPower reported a quarterly loss as the firm sold fewer power plants because of the firm's plans to spin off some of the power plant assets into a separate company, which it will co-own with rival First Solar.
FireEye shares gained as much as 4 percent in extended trade after reporting a strong beat on quarterly revenue, boosted by increased demand for its cybersecurity products. The firm also raised its full-year revenue forecast.
DreamWorks Animation plunged nearly 6 percent in after-hours trade after reporting an increase in net loss due to restructuring costs. However, revenue rose 13 percent to beat analyst expectations, driven by success with its only 2015 movie, "Home," and its "How to Train Your Dragon" franchise.
Skyworks Solutions jumped more than 3.5 percent in after-hours trade after reporting a revenue increase of 58 percent that exceeded the firm's own guidance.
Athenahealth gained more than 8.5 percent after reporting earnings and revenue that topped estimates.