Check out the companies making headlines after the bell Thursday:
American Express - The credit card provider reported first-quarter earnings that beat estimates, but revenue missed. The company cited the "significant impact" from a stronger dollar on its international business.
Schlumberger - Shares of the oil equipment provider rose about 3 percent after it topped first-quarter earnings projections, although revenue missed. The company also said it would cut an additional 11,000 jobs, blaming declining drilling activity.
Manitowoc - The commercial transportation company forecast first-quarter revenue of $752 million, below Street expectations of $835 million. Shares fell about 4 percent in after-hours trading.
Advanced Micro Devices - The stock tumbled 9 percent after the chipmaker reported a wider-than-expected first-quarter loss and missed revenue expectations.
Mattel - The toy maker's shares rose more than 8 percent after it reported a narrower-than-expected first-quarter loss on revenue that beat expectations.