Check out the companies making headlines after the bell Thursday:
Shares of Hewlett Packard Enterprise jumped more than 6 percent in extended trading after the company reported quarterly earnings and revenue that topped analysts' expectations on Thursday. The technology company posted first-quarter earnings of 41 cents per share on $12.72 billion in revenue. Analysts had expected Hewlett Packard Enterprise to report earnings of about 40 cents a share on $12.68 billion in revenue, according to a consensus estimate from Thomson Reuters.
Broadcom shares surged more than 7 percent after the bell. The chipmaker announced on Thursday that it would cut about 1,900 jobs across businesses globally. Broadcom also reported fiscal 2016 first-quarter net revenue of $1.77 billion, down 4 percent from the previous quarter. The company said it expects to take charges of about $650 million related to the job cuts through 2018. Avago completed its $37 billion deal for Broadcom last month.
Ambarella's stock was down more than 4 percent in extended trading after the chipmaker released weaker-than-expected guidance on Thursday. "During the fourth quarter we saw strong sales from professional IP security, automotive aftermarket, home monitoring and flying camera markets. This was largely offset, however, by a continued decline in the wearable sports camera market," said Fermi Wang, president and CEO of Ambarella.
H&R Block saw shares fall after-hours when the company reported its fiscal 2016 third-quarter results. The consumer taxes service provider stated in its earnings release that total revenues decreased $34.5 million from the prior-year period to $474.5 million, primarily due to lower client volumes in U.S. assisted offices, the impact of the divestiture of H&R Block Bank, and the impact of foreign currency exchange rate fluctuations, partially offset by increased pricing and improved form mix.
"This tax season has been marked by the continued impact of fraud on the industry, the continuing trend of taxpayers filing their returns later in the season and tax refunds taking longer to process," said Bill Cobb, H&R Block's president and chief executive officer in a statement. "Significant initiatives by both federal and state governments to combat tax fraud are creating material changes in the industry."
Planet Fitness stock was up more than 2 percent in extended trading after the gym chain's fourth-quarter results topped Wall Street estimates. The company announced that net income was $17.2 million compared to net income of $13.8 million in the prior-year period. In addition, the company opened up 84 new Planet Fitness stores during the period.
— CNBC's Everett Rosenfeld and Reuters contributed to this report.