Marlins Roster & Staff
Transactions
| Date | Transaction |
| 01/30/25 | RF Griffin Conine changed number to 18. |
| 01/30/25 | LHP Ryan Weathers changed number to 35. |
| 01/30/25 | Miami Marlins traded C Jhonny Pereda to Athletics for cash. |
| 01/29/25 | Miami Marlins claimed RHP Connor Gillispie off waivers from Atlanta Braves. |
| 01/28/25 | Miami Marlins designated C Jhonny Pereda for assignment. |
| 01/27/25 | Miami Marlins signed free agent OF Albert Almora Jr. to a minor league contract and invited him to spring training. |
| 01/19/25 | Miami Marlins signed free agent RHP Adriano Marrero to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent SS Steven Herrera to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent RHP Santiago Linares to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent RHP Edelson Canelon to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent RHP Isaac Prince to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent RHP Kevin Defrank to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent SS Johan Machado to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent LHP Diego Godoy to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent OF Jesus Perez to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent SS Luis Arana to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent SS Sandy Presbot to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent LHP Keyner Cedeno to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent SS Andrew Salas to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent C Moises Morales to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent C Diego Martinez to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent RHP Pedro Montero to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent SS Anthony Abreu to a minor league contract. |
| 01/15/25 | Miami Marlins signed free agent RHP Adrian Pena to a minor league contract. |
| 01/15/25 | San Francisco Giants traded RHP William Kempner to Miami Marlins for Future Considerations. International Bonus Pool Money. |
| 01/06/25 | RHP Freddy Tarnok roster status changed by Miami Marlins. |
| 01/06/25 | Miami Marlins signed free agent RHP Freddy Tarnok to a minor league contract. |
| 01/06/25 | Miami Marlins signed free agent LHP Luis Palacios to a minor league contract. |