DOJ Antitrust case US v. Bayer AG and Monsanto Company: Bayer / Roundup
The United States Department of Justice, Antitrust Division cleared, subject to remedies, Bayer's acquisition of Roundup on 29 May 2018 (case US v. Bayer AG and Monsanto Company).[1]
The Department of Justice allowed Bayer to acquire Monsanto only after requiring the divestiture of about $9 billion of businesses to BASF, which the Department described at the time as the largest merger divestiture it had ever obtained. Bayer subsequently faced very large liabilities from Monsanto's glyphosate litigation.
Hart-Scott-Rodino Antitrust Improvements Act; Section 7 of the Clayton Act
Remedies
divest business → BASF — Around $9 billion of seed and herbicide businesses, the largest divestiture ever required in a United States merger settlement.
Bayer acquired Monsanto for $128 per share in cash, creating the largest agricultural inputs company in the world. Regulators required Bayer to sell substantial seed and crop protection assets to BASF. The deal brought Bayer the Roundup brand and the glyphosate litigation attached to it, which has since cost it many billions in settlements.
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
[1]U.S. v. Bayer AG and Monsanto Company — US Department of Justice, Antitrust Division, Regulator decision, published 29 May 2018; retrieved 8 September 2026.