| Date | Transaction | |||
| 4/28/05 | Activated INF Ramon Martinez from the 15-day disabled list and optioned RHP Andrew Good to Triple-A Toledo. | |||
| 4/25/05 | Placed RHP Colby Lewis on the 15-day disabled list due to complications from May 2004 shoulder surgery. | |||
| 4/19/05 | Claimed RHP Adam Peterson off waivers from the Diamondbacks and optioned him to Double-A Erie. | |||
| 4/15/05 | Placed OF Magglio Ordonez on the 15-day disabled list with a hernia and purchased the contract of RHP Andrew Good from Triple-A Toledo. | |||
| 4/11/05 | Voided the outright assignment of RHP Gary Knotts to Triple-A Toledo and placed him on the 15-day disabled list, retroactive to April 1, with a sore right shoulder. | |||
| 4/9/05 | Placed IF Ramon Martinez on the 15-day disabled list and recalled OF Marcus Thames from Triple-A Toledo. | |||
| 4/7/05 | Released IF Dean Palmer from his Triple-A contract. | |||
| 4/2/05 | Acquired RHP Matt Ginter from the Mets for LHP Steve Colyer. | |||
| 4/1/05 | Outrighted RHP Gary Knotts and LHP Steve Colyer to Triple-A Toledo. | |||
