https://phys.org/news/2018-05-bayer-conditional-monsanto-takeover.html

According to the US decision, the acquisition of Monsanto can happen as soon as planned divestments to BASF have been accomplished, Bayer said, adding this was likely within two months.

Bayer was previously told by competition authorities, including the European Commission, to sacrifice existing activities in seeds and pesticides worth 7.6 billion euros ($8.8 billion) to homegrown rival BASF in exchange for approval of the Monsanto deal.