Marlins Roster & Staff
Transactions
| Date | Transaction |
| 02/28/25 | 2B Abrahan Ramirez assigned to Miami Marlins. |
| 02/28/25 | 3B Wilfredo Lara assigned to Miami Marlins. |
| 02/28/25 | CF Andres Valor assigned to Miami Marlins. |
| 02/28/25 | RHP William Kempner assigned to Miami Marlins. |
| 02/28/25 | C Carlos Sanchez assigned to Miami Marlins. |
| 02/27/25 | 3B Jesus Hernandez assigned to Miami Marlins. |
| 02/27/25 | C Spencer Bramwell roster status changed by Miami Marlins. |
| 02/27/25 | C Spencer Bramwell assigned to Miami Marlins. |
| 02/27/25 | RHP Nick Brink assigned to Miami Marlins. |
| 02/27/25 | RHP Nigel Belgrave assigned to Miami Marlins. |
| 02/27/25 | Miami Marlins designated RHP Seth Martinez for assignment. |
| 02/27/25 | Miami Marlins claimed RHP Brett de Geus off waivers from Pittsburgh Pirates. |
| 02/26/25 | RHP Orlando Ortiz-Mayr assigned to Miami Marlins. |
| 02/26/25 | 1B Jay Beshears assigned to Miami Marlins. |
| 02/26/25 | RHP Nick Maldonado assigned to Miami Marlins. |
| 02/26/25 | 1B Jacob Jenkins-Cowart assigned to Miami Marlins. |
| 02/26/25 | C Jessada Brown assigned to Miami Marlins. |
| 02/26/25 | LHP Evan Taylor assigned to Miami Marlins. |
| 02/25/25 | RHP Jean Reyes assigned to Miami Marlins. |
| 02/24/25 | C Connor Caskenette assigned to Miami Marlins. |
| 02/24/25 | 2B Ian Lewis assigned to Miami Marlins. |
| 02/24/25 | SS Fenwick Trimble assigned to Miami Marlins. |
| 02/24/25 | 2B Cody Morissette assigned to Miami Marlins. |
| 02/24/25 | C Connor Caskenette roster status changed by Miami Marlins. |
| 02/24/25 | RHP Jesse Bergin assigned to Miami Marlins. |
| 02/24/25 | 2B Cody Morissette roster status changed by Miami Marlins. |
| 02/24/25 | LHP Adam Laskey assigned to Miami Marlins. |
| 02/23/25 | RHP Will Schomberg assigned to Miami Marlins. |
| 02/23/25 | LHP Chandler Jozwiak assigned to Miami Marlins. |
| 02/23/25 | SS Payton Green assigned to Miami Marlins. |
| 02/23/25 | CF Shane Sasaki assigned to Miami Marlins. |
| 02/23/25 | RF Kemp Alderman assigned to Miami Marlins. |
| 02/23/25 | 3B Michael Snyder assigned to Miami Marlins. |
| 02/23/25 | LHP Chandler Jozwiak roster status changed by Miami Marlins. |
| 02/23/25 | CF Shane Sasaki roster status changed by Miami Marlins. |
| 02/23/25 | 3B Garret Forrester assigned to Miami Marlins. |
| 02/22/25 | RHP Xavier Meachem assigned to Miami Marlins. |
| 02/22/25 | C Sam Praytor assigned to Miami Marlins. |
| 02/22/25 | RHP Gabe Bierman assigned to Miami Marlins. |
| 02/22/25 | RHP Xavier Meachem roster status changed by Miami Marlins. |
| 02/22/25 | CF Mark Coley II roster status changed by Miami Marlins. |
| 02/22/25 | SS Cam Clayton assigned to Miami Marlins. |
| 02/22/25 | OF Colby Shade roster status changed by Miami Marlins. |
| 02/22/25 | OF Colby Shade assigned to Miami Marlins. |
| 02/22/25 | CF Mark Coley II assigned to Miami Marlins. |
| 02/22/25 | RHP Zach McCambley assigned to Miami Marlins. |
| 02/22/25 | RHP Gabe Bierman roster status changed by Miami Marlins. |
| 02/21/25 | Miami Marlins signed free agent IF Juan Alva to a minor league contract. |
| 02/21/25 | RHP Cal Quantrill changed number to 47. |
| 02/21/25 | Miami Marlins signed free agent IF Juan Alva to a minor league contract. |
| 02/21/25 | SS Max Acosta changed number to 24. |
| 02/20/25 | RHP Eury Pérez roster status changed by Miami Marlins. |
| 02/20/25 | Miami Marlins placed RHP Eury Pérez on the 60-day injured list. Tommy John surgery. |
| 02/20/25 | Miami Marlins claimed RHP Seth Martinez off waivers from Arizona Diamondbacks. |
| 02/14/25 | Miami Marlins sent RHP Xzavion Curry outright to Jacksonville Jumbo Shrimp. |
| 02/13/25 | RHP Xzavion Curry roster status changed by Miami Marlins. |
| 02/12/25 | Miami Marlins placed LHP Braxton Garrett on the 60-day injured list. Left elbow UCL surgery. |
| 02/12/25 | Miami Marlins signed free agent RHP Cal Quantrill. |
| 02/12/25 | 2B Otto Lopez changed number to 6. |
| 02/11/25 | Miami Marlins designated RHP Xzavion Curry for assignment. |
| 02/11/25 | Miami Marlins claimed RHP Ronny Henriquez off waivers from Minnesota Twins. |
| 02/10/25 | Miami Marlins invited non-roster RHP Matt Pushard to spring training. |
| 02/10/25 | Miami Marlins invited non-roster C Ryan Ignoffo to spring training. |
| 02/10/25 | Miami Marlins invited non-roster OF Ronny Simon to spring training. |
| 02/10/25 | Miami Marlins invited non-roster C Joe Mack to spring training. |
| 02/10/25 | Miami Marlins invited non-roster RHP Woo-Suk Go to spring training. |
| 02/10/25 | Miami Marlins invited non-roster 1B Nathan Martorella to spring training. |
| 02/10/25 | Miami Marlins invited non-roster LHP Dale Stanavich to spring training. |
| 02/10/25 | Miami Marlins invited non-roster LHP Justin King to spring training. |
| 02/10/25 | Miami Marlins invited non-roster RHP Robinson Pina to spring training. |
| 02/10/25 | Miami Marlins invited non-roster RHP Josh Ekness to spring training. |
| 02/10/25 | Miami Marlins invited non-roster 1B Jacob Berry to spring training. |
| 02/10/25 | Miami Marlins signed free agent RHP Janson Junk to a minor league contract and invited him to spring training. |
| 02/10/25 | Miami Marlins invited non-roster LHP Robby Snelling to spring training. |
| 02/10/25 | Miami Marlins invited non-roster CF Andrew Pintar to spring training. |
| 02/10/25 | Miami Marlins invited non-roster LHP Patrick Monteverde to spring training. |
| 02/10/25 | Miami Marlins invited non-roster RHP Austin Roberts to spring training. |
| 02/10/25 | Miami Marlins invited non-roster C Bennett Hostetler to spring training. |
| 02/10/25 | Miami Marlins invited non-roster 1B Troy Johnston to spring training. |
| 02/10/25 | Miami Marlins invited non-roster CF Jakob Marsee to spring training. |
| 02/06/25 | Miami Marlins signed free agent C Rob Brantly to a minor league contract and invited him to spring training. |