Check out which companies are making headlines after the bell Wednesday:
Tesla - The maker of electric cars posted earnings per share of 33 cents, excluding one-time items, on revenue of $761 million, topping expectations for 21 cents a share on revenue of $686 million. Tesla said it sold a record 6,892 Model S vehicles in the fourth quarter and expects to deliver more than 35,000 vehicles in 2014. Shares spiked sharply in extended-hours trading.
Facebook - The social-media giant will acquire WhatsApp messenger service for a total of approximately $16 billion, including $4 billion in cash and approximately $12 billion worth of Facebook shares. Shares slipped in extended-hours trading.
Safeway - The supermarket chain reported EPS of 53 cents on revenue of $11.3 billion, versus expectations for 48 cents a share on sales of $11.49 billion. In addition, It said it is in talks about possibly selling the company, but no deal has been reached. Shares rallied in extended-hours trading.