The Seahawks will be docked two minicamp workouts in 2015 after players had excessive contact during a June 16 practice.
Carroll's fine was at least $100,000 and the Seahawks' exceeded $200,000, according to the report.
Seattle lost two OTA workouts and was fined for a similar violation in 2012.
The Seahawks, which went 13-3 and won the Super Bowl last season, open the 2014 season Sept. 4 against the Green Bay Packers.
- Chris Johnson