Monsanto rejected a $62 billion takeover offer from Bayer as too low, while saying it remains open to further deal talks, putting pressure on the German company to raise a bid that has already sent its stock tumbling.
"We believe in the substantial benefits an integrated strategy could provide to growers and broader society, and we have long respected Bayer's business," Monsanto Chief Executive Officer Hugh Grant said in a statement Tuesday.
"However, the current proposal significantly undervalues our company and also does not adequately address or provide reassurance for some of the potential financing and regulatory execution risks related to the acquisition," he said.
Bayer will likely come back with a higher bid, Jonas Oxgaard, an analyst with Sanford C. Bernstein & Co in New York, said Tuesday in a note, adding that an offer below $135 per share would be "challenging" for Monsanto to agree to.
Buying Monsanto would create the world's biggest supplier of farm chemicals and seeds. Monsanto is the largest seed supplier and a pioneer of genetically modified crops, which two decades on from their introduction have come to account for the majority of corn and soybeans grown in the United States. Monsanto also sells seeds in foreign markets including Latin America and India.