| Date | Transaction | |||
| 5/29/08 | Placed RHP Troy Percival on the 15-day disabled list with a left hamstring strain; reinstated INF Willy Aybar from the 15-day disabled list; optioned INF Ben Zobrist to Triple-A Durham; purchased the contract of RHP Grant Balfour from Triple-A. | |||
| 5/15/08 | Sent INF Andy Cannizaro outright to Triple-A Durham. | |||
| 5/14/08 | Reinstated RHP Al Reyes from the 15-day disabled list; Designated RHP Scott Dohmann for assignment. | |||
| 5/12/08 | Activated INF Ben Zobrist from the 15-day disabled list; Designated INF Andy Cannizaro for assignment. | |||
| 5/11/08 | Reinstated RHP Gary Glover from the 15-day disabled list; Optioned LHP Kurt Birkins to Triple-A Durham. | |||
| 5/10/08 | Activated OF Cliff Floyd from the 15-day disabled list; Designated OF Nathan Haynes for assignment. | |||
| 5/7/08 | Signed RHP Colter Bean to a Minor League contract. | |||
| 5/3/08 | Activated LHP Scott Kazmir from the 15-day disabled list; Optioned OF Justin Ruggiano to Triple-A Durham. | |||
| 5/2/08 | Placed RHP Gary Glover on the 15-day disabled list, retroactive to April 26, with right shoulder tendinitis; Recalled OF Justin Ruggiano from Triple-A Durham. | |||
