| Date | Transaction | |||
| 12/29/05 | Signed free agent RHP Octavio Dotel, who had been with the Athletics, to a one-year contract. | |||
| 12/23/05 | Signed free agent outfielder Johnny Damon, who had been with the Red Sox, to a four-year contract. | |||
| 12/22/05 | Re-signed OF Bernie Williams to a one-year contract. | |||
| 12/16/05 | Acquired LHP Ron Villone from the Marlins for nonroster LHP Ben Julianel. | |||
| 12/15/05 | Signed LHP Mike Myers to a two-year contract. | |||
| 12/8/05 | Signed OF Chris Prieto to a Minor League contract and invited him to Spring Training; Acquired INF Kevin Howard and OF Benjamin Himes from the Cincinnati Reds for INF/OF Tony Womack and cash considerations. | |||
| 12/2/05 | Signed RHP Kyle Farnsworth to a three-year contract. | |||
