The Cubs acquired Brujan from the Marlins on Sunday in exchange for first baseman Matt Mervis, Jeff Passan of ESPN.com reports.
The Marlins designated Brujan for assignment Friday, Daniel Alvarez-Montes of ElExtraBase.com reports.
The Marlins activated Brujan (shoulder) from the 10-day injured list Thursday, Isaac Azout of FishOnFirst.com reports.
Brujan (shoulder) resumed taking part in baseball activities last weekend, MLB.com reports.
The Marlins placed Brujan on the 10-day injured list Saturday with a right shoulder AC joint sprain.
Brujan is out of the lineup for Wednesday's game against the Phillies.
Brujan is out of the lineup for Friday's game against the Padres.
Brujan is not in the lineup for Wednesday's game against the Reds.
Brujan is out of the lineup for Tuesday's game against the Reds.
Brujan went 0-for-3 with a walk in Monday's loss to the Reds.