The Leverkusen-based drug and chemicals company said in a statement early today it was offering USD 127.50 per Monsanto share, up from the previous USD 125 a share offer. Excluding debt of about USD 9 billion, that values Monsanto at USD 55.8 billion, about USD 1 billion more than the previous offer.
It gave no further details on the takeover bid and said "there can be no assurance that the parties will enter into an agreement."
Monsanto, based in St Louis, Missouri, has already rejected two offers from Bayer and described the previous offer in July inadequate.
Monsanto confirmed the new Bayer bid but would not comment further as it evaluates it.