Wednesday were fined £10,000 for the bust-up at Millwall - but the Lions are awaiting the outcome of an appeal.
FA charges followed the fracas involving players of both clubs after the Owls’ Giles Coke and the the Lions’ Shane Lowry were sent off at The Den in January.
Both clubs were charged with “failing to ensure their players conducted themselves in an orderly fashion and/or refrained from provocative behaviour.”
The Owls admitted the charge, and the fine is a standard one for this offence.
Millwall were fined the same amount but appealed. It is understood that the FA are close to revealing a final decision on them.
Lowry was dismissed for stamping on Coke, and the latter was red-carded for his reaction: he man-handled the defender. Coke served a three-match ban and was apologetic.
An appeal by Lowry was rejected and he suffered a four-match ban because it was his second red card of the season. Millwall were also fined £6,000 after a game at Burnley, which was played 11 days after the one against Wednesday. They were charged with failing to ensure that players behaved in an orderly fashion.