Marlins Roster & Staff
Transactions
| Date | Transaction |
| 04/30/22 | Miami Marlins sent RHP Dylan Floro on a rehab assignment to Jacksonville Jumbo Shrimp. |
| 04/30/22 | Miami Marlins traded SS Isan Diaz to San Francisco Giants for cash. |
| 04/28/22 | Miami Marlins recalled RHP Zach Pop from Jacksonville Jumbo Shrimp. |
| 04/28/22 | Miami Marlins optioned LHP Daniel Castano to Jacksonville Jumbo Shrimp. |
| 04/25/22 | Miami Marlins signed free agent LHP Juan Diaz to a minor league contract. |
| 04/23/22 | Miami Marlins sent RHP Dylan Floro on a rehab assignment to Jupiter Hammerheads. |
| 04/20/22 | Miami Marlins placed RHP Paul Campbell on the 10-day injured list retroactive to April 18, 2022. Right elbow strain. |
| 04/20/22 | Miami Marlins recalled LHP Daniel Castano from Jacksonville Jumbo Shrimp. |
| 04/17/22 | Miami Marlins activated RHP Paul Campbell. |
| 04/17/22 | Miami Marlins recalled RHP Paul Campbell from Jacksonville Jumbo Shrimp. |
| 04/17/22 | Miami Marlins optioned LHP Daniel Castano to Jacksonville Jumbo Shrimp. |
| 04/08/22 | Miami Marlins sent RHP Nick Neidert outright to Jacksonville Jumbo Shrimp. |
| 04/07/22 | Miami Marlins placed RHP Dylan Floro on the 10-day injured list. Right rotator cuff tendonitis. |
| 04/07/22 | Miami Marlins placed SS Jose Devers on the 10-day injured list. Right shoulder impingement syndrome. |
| 04/07/22 | Miami Marlins traded C Alex Jackson to Milwaukee Brewers for SS Hayden Cantrelle. |
| 04/07/22 | Miami Marlins recalled RF Bryan De La Cruz, and from Jacksonville Jumbo Shrimp. |
| 04/07/22 | Miami Marlins selected the contract of RHP Shawn Armstrong, and from Jacksonville Jumbo Shrimp. |
| 04/07/22 | Miami Marlins traded C Alex Jackson to Milwaukee Brewers for SS Hayden Cantrelle. |
| 04/05/22 | OF Noah Williamson assigned to Miami Marlins. |
| 04/05/22 | Miami Marlins signed free agent C Jose Garcia to a minor league contract. |
| 04/05/22 | RHP Alexis Ramirez assigned to Miami Marlins. |
| 04/05/22 | 2B Angeudis Santos roster status changed by Miami Marlins. |
| 04/05/22 | OF Noah Williamson roster status changed by Miami Marlins. |
| 04/05/22 | 2B Angeudis Santos assigned to Miami Marlins. |
| 04/04/22 | Miami Marlins placed LHP Sean Guenther on the 60-day injured list. Left arm strain. |
| 04/04/22 | Miami Marlins designated RHP Nick Neidert for assignment. |
| 04/04/22 | Miami Marlins activated LHP Sean Guenther. |
| 04/04/22 | Miami Marlins optioned RHP Zach Pop to Jacksonville Jumbo Shrimp. |
| 04/04/22 | Miami Marlins optioned RHP Paul Campbell to Jacksonville Jumbo Shrimp. |
| 04/03/22 | SS Kahlil Watson and assigned to Miami Marlins. |
| 04/03/22 | CF Javeon Cody and assigned to Miami Marlins. |
| 04/03/22 | RHP Jackson Rose and assigned to Miami Marlins. |
| 04/03/22 | SS Jose Salas and assigned to Miami Marlins. |
| 04/03/22 | Miami Marlins activated RHP Cole Sulser. |
| 04/03/22 | OF Jorge Caballero roster status changed by Miami Marlins. |
| 04/03/22 | Miami Marlins activated LHP Tanner Scott. |
| 04/03/22 | SS Javier Sanoja and assigned to Miami Marlins. |
| 04/03/22 | SS Cristhian Rodriguez and assigned to Miami Marlins. |
| 04/03/22 | SS Osiris Johnson and assigned to Miami Marlins. |
| 04/03/22 | Miami Marlins activated LHP Tanner Scott. |
| 04/03/22 | Miami Marlins activated RHP Cole Sulser. |
| 04/03/22 | 1B Zach Zubia and assigned to Miami Marlins. |
| 04/03/22 | OF Jorge Caballero assigned to Miami Marlins. |
| 04/03/22 | Baltimore Orioles traded RHP Cole Sulser and LHP Tanner Scott to Miami Marlins for OF Kevin Guerrero and LHP Antonio Velez. |
| 04/03/22 | Baltimore Orioles traded RHP Cole Sulser and LHP Tanner Scott to Miami Marlins for OF Kevin Guerrero and LHP Antonio Velez. |
| 04/03/22 | Baltimore Orioles traded RHP Cole Sulser and LHP Tanner Scott to Miami Marlins for OF Kevin Guerrero and LHP Antonio Velez. |
| 04/03/22 | Baltimore Orioles traded RHP Cole Sulser and LHP Tanner Scott to Miami Marlins for OF Kevin Guerrero and LHP Antonio Velez. |
| 04/01/22 | RF Kyler Castillo assigned to Miami Marlins. |
| 04/01/22 | Miami Marlins signed free agent RHP Riskiel Tineo to a minor league contract. |
| 04/01/22 | C Jose Estrada roster status changed by Miami Marlins. |
| 04/01/22 | SS Bennett Hostetler assigned to Miami Marlins. |
| 04/01/22 | SS Bennett Hostetler roster status changed by Miami Marlins. |
| 04/01/22 | SS Nasim Nunez assigned to Miami Marlins. |
| 04/01/22 | C Jose Estrada assigned to Miami Marlins. |
| 04/01/22 | LHP Josh Simpson and assigned to Miami Marlins. |
| 04/01/22 | SS Nasim Nunez roster status changed by Miami Marlins. |
| 04/01/22 | RF Kyler Castillo roster status changed by Miami Marlins. |
| 04/01/22 | Miami Marlins optioned LHP Braxton Garrett to Jacksonville Jumbo Shrimp. |
| 04/01/22 | Miami Marlins optioned RHP Edward Cabrera to Jacksonville Jumbo Shrimp. |
| 04/01/22 | Miami Marlins optioned RHP Tommy Nance to Jacksonville Jumbo Shrimp. |