Monsanto Chairman and CEO Hugh Grant will leave the company after it's acquired by Germany's Bayer AG.
The St. Louis company said Monday that Grant will work to see the $57 billion deal through and oversee operations before it closes. Bayer expects the deal to close in the second quarter.
A number of Monsanto's top executives will depart with Grant as well.
Monsanto shareholders approved a bid from the pharmaceutical and chemical business in December.
Monsanto sells seeds and crop protection chemicals to the agricultural sector.
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