Bayer Surges After Roundup Appeal Wins In Philadelphia Court (2)

Bayer AG shares jumped following a significant win for the German company in the long-running cancer litigation over its Roundup weedkiller.

A Philadelphia appeals court concluded Thursday that federal regulations governing the pesticide’s warning label supersede Pennsylvania laws under which a Roundup user in the state claimed Bayer’s Monsanto unit should have warned them about cancer risks.

The ruling from the three-judge panel suggests that one of the central claims against the company may fail in state court, where the majority of the current cases are.

Bayer shares surged as much as 10% in early German trading on Friday, the ...