LEVERKUSEN, GERMANY - JUNE 02: The logo of German chemicals giant Bayer stands over the company's factory and site of its corporate headquarters on June 2, 2016 in Leverkusen, Germany. Bayer is seeking to acquire U.S. company Monsanto and according to recent media reports is ready to raise its cash offering after an initial rejection by Monsanto. (Photo by Volker Hartmann/Getty Images)