Transactions| Date | Transaction | |||
| 7/30/03 | Acquired OF Doug Glanville from Texas for minor league outfielder Jason Fransz and cash; outrighted the contract of OF Trenidad Hubbard to Triple-A Iowa. | |||
| 7/26/03 | Cubs recall RHP Juan Cruz from Triple-A Iowa and option RHP Todd Wellemeyer to Triple-A. | |||
| 7/23/03 | Cubs place OF Tom Goodwin on the 15-day DL with a strained left hamstring and recalled RHP Todd Wellemeyer from Triple-A Iowa. Team also options pitcher Sergio Mitre to Double-A West Tenn. | |||
| 7/22/03 | Cubs acquire 3B Aramis Ramirez, OF Kenny Lofton and cash considerations from the Pittsburgh Pirates in exchange for IF Jose Hernandez, minor league RHP Matt Bruback and a player to be named later. | |||
| 7/21/03 | Cubs place RHP Mark Prior on 15-day DL with shoulder soreness. RHP Sergio Mitre is recalled from Double-A West Tenn. | |||
| 7/7/03 | Cubs place CF Corey Patterson on the 15-day DL with a torn ACL in left knee. Cubs recall Trenidad Hubbard. | |||
| 7/4/03 | Activated RHP Dave Veres from the disabled list and optioned RHP Juan Cruz to Triple-A Iowa. | |||