Transactions| Date | Transaction | |||
| 3/31/05 | Marlins returned Rule 5 pick LHP Luke Hagerty. | |||
| Placed RHP Scott Williamson on the 60-day disabled list recovering from October 2004 Tommy John surgery. | ||||
| Released INF Dave Hansen and placed RHP Scott Williamson on the 60-day disabled list while rehabbing from Tommy John surgery. | ||||
| 3/30/05 | Released LHP Stephen Randolph; Purchased the contract of RHP Scott Williamson from Triple-A Iowa. | |||
| Traded INF Cody Ransom to the Texas Rangers in exchange for a player to be named later. | ||||
| 3/29/05 | Acquired LHP Cliff Bartosh from the Cleveland Indians in exchange for RHP Ronald Bay. | |||
| 3/26/05 | Traded nonroster OF Travis Ezi to the Milwaukee Brewers for nonroster C Mark Johnson. | |||
| 3/25/05 | Optioned RHP Angel Guzman and INF Ronny Cedeno to Triple-A Iowa; Returned C Casey Kopitzke and RHP Jermaine Van Buren to minor league camp. | |||
| 3/20/05 | Re-assigned LHP Eddie Oropesa and LHP Jimmy Anderson to minor league camp. | |||
| 3/18/05 | Optioned INF Richard Lewis and C Geovany Soto to Triple-A Iowa and returned INF Danny Klassen and OF Peter Bergeron to minor league camp. | |||
| 3/15/05 | Optioned INF Michael Fontenot, LHP John Koronka and LHP Russ Rohlicek to Triple-A Iowa. | |||
| 3/11/05 | Optioned RHP Roberto Novoa to Triple-A Iowa and RHP David Crouthers to Double-A West Tenn.; Re-assigned LHP Raul Valdes, OF Adam Greenberg, C Jose Reyes and C Robinson Cancel to minor league camp. | |||
| 3/5/05 | Optioned LHP Renyel Pinto and LHP Carlos Vasquez to Triple-A Iowa. | |||