Palo Alto Networks saw shares continued to rise after hours; they got an initial boost during the regular session when the company released its earnings report earlier than it planned. The security firm reported higher-than-expected second-quarter revenue as companies and governments spent more to protect themselves from cyberattacks. Total revenue for the fiscal second quarter 2016 grew 54 percent year-over-year to a record $334.7 million, compared with total revenue of $217.7 million for the fiscal second quarter 2015.
HP Inc. shares fell more than 3.5 percent in after-hours trading Thursday, a day after it posted a larger-than-expected revenue drop in its personal systems and printing segments.
Kraft Heinz's stock was up more than 3 percent in extended trading after the company reported quarterly earnings and revenue that beat analysts' expectations on Thursday. The food company also declared a quarterly dividend of $0.575 per share.
"We are working to implement proven management methodologies, remove inefficient spending and streamline our organization, while investing in our brands and innovation to drive long-term profitable growth," Kraft Heinz CEO Bernardo Hees said, in a statement.
Shares of SunEdison soared more than 25 percent after the bell on Thursday when reports surfaced that the solar-power company defeated an injunction on a deal with its yieldco, TerraForm Power. In January, David Tepper-led hedge fund Appaloosa Management sued to prevent SunEdison's yieldco from taking over some of Vivint Solar's assets after SunEdison acquires the rooftop panel installer. TerraForm is to acquire Vivint's residential solar rooftop portfolio after SunEdison completes the Vivint transaction. Appaloosa sought "immediate injunctive relief" last month, given that SunEdison's acquisition of Vivint could close "at any time," the hedge fund said in a filing in a Delaware court.
— CNBC's Christine Wang and Jacob Pramuk and Reuters contributed to this report.