| Date | Transaction | |||
| 12/31/04 | Signed 1B Tino Martinez to a one-year contract with a club option for the 2006 season. | |||
| 12/29/04 | Signed RHP Jaret Wright to a three-year contract. | |||
| 12/22/04 | Signed RHP Carl Pavano to a four-year contract through the 2008 season. | |||
| 12/21/04 | Signed 2B Tony Womack to a two-year contract. | |||
| 12/3/04 | Acquired LHP Mike Stanton from the New York Mets in exchange for LHP Felix Heredia. | |||
| Acquired RHP Felix Rodriguez from the Philadelphia Phillies in exchange for OF Kenny Lofton. | ||||
| Re-signed C John Flaherty to a one-year contract. | ||||
