Bayer maintains that active ingredient glyphosate is noncarcinogenic, but as of March 2024, the company has already paid $11 billion in damages for 100,000 cases with 54,000 pending cases and more expected.

Roundup is a widely used weed killer produced by Monsanto, a company owned by Bayer. The first lawsuit alleging that Roundup causes cancer concluded in 2018. Since that time, plaintiffs have filed tens of thousands of lawsuits, and Bayer has already paid billions of dollars.

Bayer experienced successful outcomes in a string of trials from October 2021 to June 2022, including a win for defendants in the high-profile Shelton case.