| Date | Transaction | |||
| 6/30/04 | Signed RHP Pedro Astacio to a minor league contract. | |||
| 6/22/04 | Signed RHP Curtis Leskanic to a 2004 contract; optioned LHP Mark Malaska to Triple-A Pawtucket. | |||
| 6/16/04 | Activated OF Trot Nixon from the 15-day disabled list; optioned RHP Anastacio Martinez to Triple-A Pawtucket. | |||
| 6/11/04 | Signed LHP Matt Beech to a minor league contract; optioned C Andy Dominique to Triple-A Pawtucket; activated RHP Scott Williamson from the 15-day disabled list. | |||
| 6/9/04 | Activated SS Nomar Garciaparra from the 15-day disabled list and recalled LHP Mark Malaska from Triple-A Pawtucket; outrighted INF/OF Brian Daubach and optioned RHP Jamie Brown to Triple-A. | |||