A U.S. federal jury has ordered Apple to pay Taction Technology more than $5.7 billion (about C$8.1 billion) for infringing two patents. The case focused on the Taptic Engine, which provides haptic feedback in iPhones and Apple Watches. The verdict is reportedly the largest patent award in U.S. history.

Apple said it will appeal, arguing that its Taptic Engine is fundamentally different from Taction’s patented technology. The jury found that the infringement was not willful. As a result, the judge is unlikely to increase the damages award.

The news broke after Friday’s market close, making Monday the first trading session for markets to react.