
The Pfizer Inc. company logo and the AstraZeneca Plc company logo, top, are seen on boxes of pharmaceutical products produced by the drug makers in this arranged photograph taken in London, U.K., on Friday, May 2, 2014. AstraZeneca Plc rejected Pfizer Inc.'s sweetened takeover proposal, saying the 63.1 billion-pound ($106.5 billion) offer fails to recognize the value of the promising experimental medicines under development by the U.K.'s second-biggest drugmaker. Photographer: Chris Ratcliffe/Bloomberg
Chris Ratcliffe/Bloomberg