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MIA · 2026 transactions
Data through 2026-10-03
| Date | Player | Type | Detail |
|---|---|---|---|
| Sep 25 | Wikelman González | Recalled | Miami Marlins recalled RHP Wikelman González from Jacksonville Jumbo Shrimp. |
| Sep 25 | Tyler Zuber | Status Change | Miami Marlins placed RHP Tyler Zuber on the 15-day injured list. Right elbow sprain. |
| Sep 16 | Otto Lopez | Number Change | SS Otto Lopez changed number to 6. |
| Sep 16 | Brian Navarreto | Number Change | C Brian Navarreto changed number to 64. |
| Sep 15 | Brian Navarreto | Number Change | C Brian Navarreto changed number to 21. |
| Sep 15 | Otto Lopez | Number Change | SS Otto Lopez changed number to 21. |
| Sep 15 | Pete Fairbanks | Status Change | Miami Marlins placed RHP Pete Fairbanks on the 15-day injured list. Right median nerve irritation. |
| Sep 15 | Bradley Blalock | Recalled | Miami Marlins recalled RHP Bradley Blalock from Jacksonville Jumbo Shrimp. |
| Sep 13 | Xavier Edwards | Status Change | Miami Marlins activated 2B Xavier Edwards from the 10-day injured list. |
| Sep 13 | Owen Caissie | Status Change | Miami Marlins placed RF Owen Caissie on the 10-day injured list. Lumbar stress reaction. |
| Sep 9 | Bradley Blalock | Optioned | Miami Marlins optioned RHP Bradley Blalock to Jacksonville Jumbo Shrimp. |
| Sep 9 | Pete Fairbanks | Status Change | Miami Marlins activated RHP Pete Fairbanks from the 15-day injured list. |
| Sep 5 | Leo Jiménez | Released | Miami Marlins released 3B Leo Jiménez. |
| Sep 3 | Leo Jiménez | Designated for Assignment | Miami Marlins designated 3B Leo Jiménez for assignment. |
| Sep 3 | Deyvison De Los Santos | Recalled | Miami Marlins recalled 3B Deyvison De Los Santos from Jacksonville Jumbo Shrimp. |
| Sep 1 | Graham Pauley | Recalled | Miami Marlins recalled 3B Graham Pauley from Jacksonville Jumbo Shrimp. |
| Sep 1 | Bradley Blalock | Recalled | Miami Marlins recalled RHP Bradley Blalock from Jacksonville Jumbo Shrimp. |
| Aug 31 | Xavier Edwards | Status Change | Miami Marlins placed 2B Xavier Edwards on the 10-day injured list. Left thumb sprain. |
| Aug 31 | Wikelman González | Optioned | Miami Marlins optioned RHP Wikelman González to Jacksonville Jumbo Shrimp. |
| Aug 31 | Jared Serna | Recalled | Miami Marlins recalled SS Jared Serna from Jacksonville Jumbo Shrimp. |
| Aug 31 | Cade Gibson | Recalled | Miami Marlins recalled LHP Cade Gibson from Jacksonville Jumbo Shrimp. |
| Aug 29 | Patrick Monteverde | Optioned | Miami Marlins optioned LHP Patrick Monteverde to Jacksonville Jumbo Shrimp. |
| Aug 29 | Wikelman González | Recalled | Miami Marlins recalled RHP Wikelman González from Jacksonville Jumbo Shrimp. |
| Aug 26 | John King | Released | Miami Marlins released LHP John King. |
| Aug 26 | Cade Gibson | Optioned | Miami Marlins optioned LHP Cade Gibson to Jacksonville Jumbo Shrimp. |
| Aug 26 | Patrick Monteverde | Selected | Miami Marlins selected the contract of LHP Patrick Monteverde from Jacksonville Jumbo Shrimp. |
| Aug 25 | Dax Fulton | Recalled | Miami Marlins recalled LHP Dax Fulton from Jacksonville Jumbo Shrimp. |
| Aug 25 | Pete Fairbanks | Status Change | Miami Marlins placed RHP Pete Fairbanks on the 15-day injured list. Right median nerve irritation. |
| Aug 24 | Deyvison De Los Santos | Optioned | Miami Marlins optioned 3B Deyvison De Los Santos to Jacksonville Jumbo Shrimp. |
| Aug 24 | Kyle Stowers | Status Change | Miami Marlins activated 1B Kyle Stowers from the 10-day injured list. |
| Aug 23 | John King | Designated for Assignment | Miami Marlins designated LHP John King for assignment. |
| Aug 23 | Jack Ralston | Recalled | Miami Marlins recalled RHP Jack Ralston from Jacksonville Jumbo Shrimp. |
| Aug 22 | Logan Driscoll | Optioned | Miami Marlins optioned C Logan Driscoll to Jacksonville Jumbo Shrimp. |
| Aug 22 | Deyvison De Los Santos | Recalled | Miami Marlins recalled 3B Deyvison De Los Santos from Jacksonville Jumbo Shrimp. |
| Aug 21 | Logan Driscoll | Selected | Miami Marlins selected the contract of C Logan Driscoll from Jacksonville Jumbo Shrimp. |
| Aug 21 | Graham Pauley | Optioned | Miami Marlins optioned 3B Graham Pauley to Jacksonville Jumbo Shrimp. |
| Aug 21 | William Kempner | Status Change | Miami Marlins transferred RHP William Kempner from the 15-day injured list to the 60-day injured list. Right elbow sprain. |
| Aug 20 | Logan Driscoll | Trade | Tampa Bay Rays traded C Logan Driscoll to Miami Marlins for cash. |
| Aug 18 | Anthony Bender | Assigned | Miami Marlins sent RHP Anthony Bender on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Aug 11 | Kyle Stowers | Status Change | Miami Marlins placed 1B Kyle Stowers on the 10-day injured list retroactive to August 10, 2026. Left hamstring strain. |
| Aug 11 | Graham Pauley | Recalled | Miami Marlins recalled 3B Graham Pauley from Jacksonville Jumbo Shrimp. |
| Aug 10 | Colby Guy | Signed as Free Agent | Miami Marlins signed free agent RHP Colby Guy to a minor league contract. |
| Aug 10 | Wikelman González | Optioned | Miami Marlins optioned RHP Wikelman González to Jacksonville Jumbo Shrimp. |
| Aug 10 | Wikelman González | Claimed Off Waivers | Miami Marlins claimed RHP Wikelman González off waivers from Chicago White Sox. |
| Aug 5 | Jacob Berry | Trade | Miami Marlins traded 1B Jacob Berry to Kansas City Royals. |
| Aug 4 | Agustín Ramírez | Recalled | Miami Marlins recalled C Agustín Ramírez from Jacksonville Jumbo Shrimp. |
| Aug 4 | Victor Vodnik | Status Change | Miami Marlins activated RHP Victor Vodnik. |
| Aug 3 | Jack Ralston | Optioned | Miami Marlins optioned RHP Jack Ralston to Jacksonville Jumbo Shrimp. |
| Aug 3 | Jack Ralston | Selected | Miami Marlins selected the contract of RHP Jack Ralston from Jacksonville Jumbo Shrimp. |
| Aug 3 | Josh Ekness | Status Change | Miami Marlins activated RHP Josh Ekness from the 60-day injured list. |
| Aug 3 | Dax Fulton | Optioned | Miami Marlins optioned LHP Dax Fulton to Jacksonville Jumbo Shrimp. |
| Aug 3 | Hyun Seung Lee | Trade | Miami Marlins traded RHP Lake Bachar to Pittsburgh Pirates for RHP Brandan Bidois, LF Brian Sanchez and IF Hyun Seung Lee. |
| Aug 3 | Victor Vodnik | Trade | Colorado Rockies traded RHP Victor Vodnik to Miami Marlins for 1B Connor Norby and RHP Aiden May. |
| Aug 3 | Rece Hinds | Trade | Miami Marlins traded RF Rece Hinds to Baltimore Orioles for cash. |
| Aug 3 | Jonathon Long | Trade | Miami Marlins traded LHP Braxton Garrett to Chicago Cubs for 3B Jonathon Long and RHP Jace Beck. |
| Aug 3 | Jacob Kisting | Trade | Miami Marlins traded C Liam Hicks to Tampa Bay Rays for 3B Brayden Taylor, SS Adrian Santana and RHP Jacob Kisting. |
| Aug 1 | Owen Caissie | Status Change | Miami Marlins activated RF Owen Caissie from the 10-day injured list. |
| Aug 1 | Graham Pauley | Optioned | Miami Marlins optioned 3B Graham Pauley to Jacksonville Jumbo Shrimp. |
| Jul 31 | Albert Estevez | Signed as Free Agent | Miami Marlins signed free agent RHP Albert Estevez to a minor league contract. |
| Jul 28 | Owen Caissie | Assigned | Miami Marlins sent RF Owen Caissie on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Jul 23 | Joey Lawson | Signed | Miami Marlins signed C Joey Lawson. |
| Jul 23 | Rintaro Sasaki | Signed | Miami Marlins signed 1B Rintaro Sasaki. |
| Jul 23 | Wessley Roberson | Signed | Miami Marlins signed OF Wessley Roberson. |
| Jul 23 | Zach Peters | Signed | Miami Marlins signed RHP Zach Peters. |
| Jul 23 | Ryan Peterson | Signed | Miami Marlins signed RHP Ryan Peterson. |
| Jul 23 | Nic Tolbert | Signed | Miami Marlins signed 3B Nic Tolbert. |
| Jul 23 | Cole Selvig | Signed | Miami Marlins signed RHP Cole Selvig. |
| Jul 23 | Jackson Mitchell | Signed | Miami Marlins signed RHP Jackson Mitchell. |
| Jul 23 | Jatniel McCloud | Signed | Miami Marlins signed OF Jatniel McCloud. |
| Jul 23 | Duke McCarron | Signed | Miami Marlins signed RHP Duke McCarron. |
| Jul 23 | Colin Linder | Signed | Miami Marlins signed RHP Colin Linder. |
| Jul 23 | Cam Kozeal | Signed | Miami Marlins signed SS Cam Kozeal. |
| Jul 23 | Ethan Kleinschmit | Signed | Miami Marlins signed LHP Ethan Kleinschmit. |
| Jul 23 | Tyler Kapa | Signed | Miami Marlins signed RHP Tyler Kapa. |
| Jul 23 | Eric Guevara | Signed | Miami Marlins signed SS Eric Guevara. |
| Jul 23 | Fabio Bundi | Signed | Miami Marlins signed RHP Fabio Bundi. |
| Jul 23 | Connor Benge | Signed | Miami Marlins signed RHP Connor Benge. |
| Jul 23 | Trey Beard | Signed | Miami Marlins signed LHP Trey Beard. |
| Jul 23 | Bane Barker | Signed | Miami Marlins signed RHP Bane Barker. |
| Jul 23 | Zach Brzykcy | Optioned | Miami Marlins optioned RHP Zach Brzykcy to Jacksonville Jumbo Shrimp. |
| Jul 23 | John King | Status Change | Miami Marlins activated LHP John King from the 15-day injured list. |
| Jul 23 | Josh Ekness | Assigned | Miami Marlins sent RHP Josh Ekness on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Jul 20 | Max Meyer | Status Change | Miami Marlins placed RHP Max Meyer on the 15-day injured list retroactive to July 19, 2026. Neck strain. |
| Jul 20 | Zach Brzykcy | Recalled | Miami Marlins recalled RHP Zach Brzykcy from Jacksonville Jumbo Shrimp. |
| Jul 19 | Porter Buursema | Signed | Miami Marlins signed RHP Porter Buursema. |
| Jul 19 | Rece Hinds | Optioned | Miami Marlins optioned RF Rece Hinds to Jacksonville Jumbo Shrimp. |
| Jul 19 | Graham Pauley | Recalled | Miami Marlins recalled 3B Graham Pauley from Jacksonville Jumbo Shrimp. |
| Jul 16 | Jacob Lombard | Signed | Miami Marlins signed SS Jacob Lombard. |
| Jul 14 | Paul Mendoza | Signed as Free Agent | Miami Marlins signed free agent RHP Paul Mendoza to a minor league contract. |
| Jul 12 | William Kempner | Status Change | Miami Marlins placed RHP William Kempner on the 15-day injured list. Right elbow sprain. |
| Jul 12 | Dax Fulton | Recalled | Miami Marlins recalled LHP Dax Fulton from Jacksonville Jumbo Shrimp. |
| Jul 9 | Owen Caissie | Status Change | Miami Marlins placed RF Owen Caissie on the 10-day injured list. Right calf strain. |
| Jul 9 | John King | Status Change | Miami Marlins placed LHP John King on the 15-day injured list retroactive to July 8, 2026. Left lateral ankle sprain. |
| Jul 9 | Zach Brzykcy | Optioned | Miami Marlins optioned RHP Zach Brzykcy to Jacksonville Jumbo Shrimp. |
| Jul 9 | Rece Hinds | Recalled | Miami Marlins recalled RF Rece Hinds from Jacksonville Jumbo Shrimp. |
| Jul 9 | Ryan Gusto | Recalled | Miami Marlins recalled RHP Ryan Gusto from Jacksonville Jumbo Shrimp. |
| Jul 9 | Janson Junk | Status Change | Miami Marlins activated RHP Janson Junk from the 15-day injured list. |
| Jul 8 | Guillermo Regalado | Signed as Free Agent | Miami Marlins signed free agent RHP Guillermo Regalado to a minor league contract. |
| Jul 8 | Lizdawin Paulino | Signed as Free Agent | Miami Marlins signed free agent RHP Lizdawin Paulino to a minor league contract. |
| Jul 4 | Jonawel Valdez | Signed as Free Agent | Miami Marlins signed free agent RHP Jonawel Valdez to a minor league contract. |
| Jul 3 | Ryan Gusto | Optioned | Miami Marlins optioned RHP Ryan Gusto to Jacksonville Jumbo Shrimp. |
| Jul 3 | William Kempner | Recalled | Miami Marlins recalled RHP William Kempner from Jacksonville Jumbo Shrimp. |
| Jul 2 | Daniel Pena | Signed as Free Agent | Miami Marlins signed free agent C Daniel Pena to a minor league contract. |
| Jun 30 | Liam Hicks | Status Change | Miami Marlins activated C Liam Hicks from the 10-day injured list. |
| Jun 30 | Anthony Bender | Status Change | Miami Marlins placed RHP Anthony Bender on the 15-day injured list. Right shin stress reaction. |
| Jun 30 | Graham Pauley | Optioned | Miami Marlins optioned 3B Graham Pauley to Jacksonville Jumbo Shrimp. |
| Jun 30 | Zach Brzykcy | Recalled | Miami Marlins recalled RHP Zach Brzykcy from Jacksonville Jumbo Shrimp. |
| Jun 28 | Janson Junk | Assigned | Miami Marlins sent RHP Janson Junk on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Jun 28 | Yenfri Sosa | Signed as Free Agent | Miami Marlins signed free agent LHP Yenfri Sosa to a minor league contract. |
| Jun 28 | Janson Junk | Assigned | Miami Marlins sent RHP Janson Junk on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Jun 26 | Angel Bonilla | Signed as Free Agent | Miami Marlins signed free agent OF Angel Bonilla to a minor league contract. |
| Jun 26 | Anderson Perez | Signed as Free Agent | Miami Marlins signed free agent RHP Anderson Perez to a minor league contract. |
| Jun 26 | Graham Pauley | Recalled | Miami Marlins recalled 3B Graham Pauley from Jacksonville Jumbo Shrimp. |
| Jun 25 | Carlos Guerrero | Signed as Free Agent | Miami Marlins signed free agent RHP Carlos Guerrero to a minor league contract. |
| Jun 25 | Christopher Morel | Outrighted | Miami Marlins sent 1B Christopher Morel outright to Jacksonville Jumbo Shrimp. |
| Jun 25 | Max Meyer | Status Change | Miami Marlins activated RHP Max Meyer from the bereavement list. |
| Jun 25 | Connor Norby | Optioned | Miami Marlins optioned 1B Connor Norby to Jacksonville Jumbo Shrimp. |
| Jun 25 | Zach Brzykcy | Optioned | Miami Marlins optioned RHP Zach Brzykcy to Jacksonville Jumbo Shrimp. |
| Jun 24 | Eury Pérez | Status Change | Miami Marlins activated RHP Eury Pérez from the 15-day injured list. |
| Jun 24 | Dax Fulton | Optioned | Miami Marlins optioned LHP Dax Fulton to Jacksonville Jumbo Shrimp. |
| Jun 23 | Davidxon Lara | Signed as Free Agent | Miami Marlins signed free agent RHP Davidxon Lara to a minor league contract. |
| Jun 22 | Zach Brzykcy | Recalled | Miami Marlins recalled RHP Zach Brzykcy from Jacksonville Jumbo Shrimp. |
| Jun 22 | Max Meyer | Status Change | Miami Marlins placed RHP Max Meyer on the bereavement list. |
| Jun 21 | Griffin Conine | Status Change | Miami Marlins activated RF Griffin Conine from the 60-day injured list. |
| Jun 21 | Christopher Morel | Designated for Assignment | Miami Marlins designated 1B Christopher Morel for assignment. |
| Jun 21 | Josh Ekness | Status Change | Miami Marlins transferred RHP Josh Ekness from the 15-day injured list to the 60-day injured list. Right calf strain. |
| Jun 21 | Liam Hicks | Status Change | Miami Marlins placed C Liam Hicks on the 10-day injured list retroactive to June 20, 2026. Low back strain. |
| Jun 21 | Brian Navarreto | Selected | Miami Marlins selected the contract of C Brian Navarreto from Jacksonville Jumbo Shrimp. |
| Jun 21 | Griffin Conine | Status Change | Miami Marlins activated LF Griffin Conine from the 60-day injured list. |
| Jun 16 | Eury Pérez | Assigned | Miami Marlins sent RHP Eury Pérez on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Jun 16 | Griffin Conine | Assigned | Miami Marlins sent LF Griffin Conine on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Jun 16 | Dax Fulton | Recalled | Miami Marlins recalled LHP Dax Fulton from Jacksonville Jumbo Shrimp. |
| Jun 16 | William Kempner | Optioned | Miami Marlins optioned RHP William Kempner to Jacksonville Jumbo Shrimp. |
| Jun 12 | Zach Pop | Signed as Free Agent | Miami Marlins signed free agent RHP Zach Pop to a minor league contract. |
| Jun 10 | Junior Pina | Signed as Free Agent | Miami Marlins signed free agent RHP Junior Pina to a minor league contract. |
| Jun 5 | Richard Jimenez | Signed as Free Agent | Miami Marlins signed free agent RHP Richard Jimenez to a minor league contract. |
| Jun 3 | Matt Pushard | Returned | RHP Matt Pushard returned to Miami Marlins from St. Louis Cardinals. |
| Jun 2 | Jaydenn Estanista | Signed as Free Agent | Miami Marlins signed free agent RHP Jaydenn Estanista to a minor league contract. |
| Jun 2 | Ricardo Morel | Signed as Free Agent | Miami Marlins signed free agent RHP Ricardo Morel to a minor league contract. |
| Jun 2 | Josh Hejka | Signed as Free Agent | Miami Marlins signed free agent RHP Josh Hejka to a minor league contract. |
| Jun 2 | Zach Brzykcy | Optioned | Miami Marlins optioned RHP Zach Brzykcy to Jacksonville Jumbo Shrimp. |
| Jun 2 | Ryan Gusto | Recalled | Miami Marlins recalled RHP Ryan Gusto from Jacksonville Jumbo Shrimp. |
| Jun 1 | Griffin Conine | Status Change | Miami Marlins transferred LF Griffin Conine from the 10-day injured list to the 60-day injured list. Left hamstring strain. |
| Jun 1 | Andrew Nardi | Status Change | Miami Marlins transferred LHP Andrew Nardi from the 15-day injured list to the 60-day injured list. Left rib cage stress reaction. |
| Jun 1 | Josh Ekness | Status Change | Miami Marlins placed RHP Josh Ekness on the 15-day injured list retroactive to May 29, 2026. Right calf strain. |
| Jun 1 | Josh White | Optioned | Miami Marlins optioned RHP Josh White to Jacksonville Jumbo Shrimp. |
| Jun 1 | Tyler Zuber | Selected | Miami Marlins selected the contract of RHP Tyler Zuber from Jacksonville Jumbo Shrimp. |
| Jun 1 | Zach Brzykcy | Selected | Miami Marlins selected the contract of RHP Zach Brzykcy from Jacksonville Jumbo Shrimp. |
| May 31 | Josh White | Recalled | Miami Marlins recalled RHP Josh White from Jacksonville Jumbo Shrimp. |
| May 30 | William Kempner | Recalled | Miami Marlins recalled RHP William Kempner from Jacksonville Jumbo Shrimp. |
| May 30 | Andrew Nardi | Status Change | Miami Marlins placed LHP Andrew Nardi on the 15-day injured list retroactive to May 28, 2026. Left rib cage stress reaction. |
| May 29 | Amos Willingham | Signed as Free Agent | Miami Marlins signed free agent RHP Amos Willingham to a minor league contract. |
| May 29 | Eury Pérez | Status Change | Miami Marlins placed RHP Eury Pérez on the 15-day injured list retroactive to May 28, 2026. Right gracilis strain. |
| May 29 | Leo Jiménez | Status Change | Miami Marlins activated 3B Leo Jiménez from the 7-day injured list. |
| May 29 | Graham Pauley | Optioned | Miami Marlins optioned 3B Graham Pauley to Jacksonville Jumbo Shrimp. |
| May 29 | Josh Ekness | Recalled | Miami Marlins recalled RHP Josh Ekness from Jacksonville Jumbo Shrimp. |
| May 28 | Janson Junk | Status Change | Miami Marlins placed RHP Janson Junk on the 15-day injured list. Right shin bone inflammation. |
| May 28 | Engel Peralta | Signed as Free Agent | Miami Marlins signed free agent RHP Engel Peralta to a minor league contract. |
| May 22 | Ramon Pena | Signed as Free Agent | Miami Marlins signed free agent RHP Ramon Pena to a minor league contract. |
| May 21 | Rece Hinds | Optioned | Miami Marlins optioned RF Rece Hinds to Jacksonville Jumbo Shrimp. |
| May 21 | Zach McCambley | Trade | Cincinnati Reds traded RF Rece Hinds to Miami Marlins for RHP Zach McCambley. |
| May 21 | Graham Pauley | Recalled | Miami Marlins recalled 3B Graham Pauley from Jacksonville Jumbo Shrimp. |
| May 20 | Cade Gibson | Status Change | Miami Marlins activated LHP Cade Gibson. |
| May 20 | Braxton Garrett | Optioned | Miami Marlins optioned LHP Braxton Garrett to Jacksonville Jumbo Shrimp. |
| May 20 | Cade Gibson | Recalled | Miami Marlins recalled LHP Cade Gibson from Jacksonville Jumbo Shrimp. |
| May 18 | Jake Christianson | Signed as Free Agent | Miami Marlins signed free agent RHP Jake Christianson to a minor league contract. |
| May 16 | Leo Jiménez | Status Change | Miami Marlins placed 3B Leo Jiménez on the 7-day injured list. Concussion. |
| May 14 | Josh Ekness | Optioned | Miami Marlins optioned RHP Josh Ekness to Jacksonville Jumbo Shrimp. |
| May 14 | Braxton Garrett | Recalled | Miami Marlins recalled LHP Braxton Garrett from Jacksonville Jumbo Shrimp. |
| May 13 | Robby Snelling | Status Change | Miami Marlins transferred LHP Robby Snelling from the 15-day injured list to the 60-day injured list. |
| May 13 | Robby Snelling | Status Change | Miami Marlins placed LHP Robby Snelling on the 15-day injured list. Left elbow UCL sprain. |
| May 13 | Pete Fairbanks | Status Change | Miami Marlins activated RHP Pete Fairbanks from the 15-day injured list. |
| May 11 | Christian MacLeod | Signed as Free Agent | Miami Marlins signed free agent LHP Christian MacLeod to a minor league contract. |
| May 10 | Stephen Jones | Outrighted | Miami Marlins sent RHP Stephen Jones outright to Jacksonville Jumbo Shrimp. |
| May 10 | Chris Paddack | Released | Miami Marlins released RHP Chris Paddack. |
| May 8 | Stephen Jones | Designated for Assignment | Miami Marlins designated RHP Stephen Jones for assignment. |
| May 8 | Robby Snelling | Selected | Miami Marlins selected the contract of LHP Robby Snelling from Jacksonville Jumbo Shrimp. |
| May 7 | Graham Pauley | Optioned | Miami Marlins optioned 3B Graham Pauley to Jacksonville Jumbo Shrimp. |
| May 7 | Dax Fulton | Optioned | Miami Marlins optioned LHP Dax Fulton to Jacksonville Jumbo Shrimp. |
| May 7 | Heriberto Hernández | Recalled | Miami Marlins recalled LF Heriberto Hernández from Jacksonville Jumbo Shrimp. |
| May 7 | Stephen Jones | Selected | Miami Marlins selected the contract of RHP Stephen Jones from Jacksonville Jumbo Shrimp. |
| May 6 | William Kempner | Optioned | Miami Marlins optioned RHP William Kempner to Jacksonville Jumbo Shrimp. |
| May 6 | Dax Fulton | Recalled | Miami Marlins recalled LHP Dax Fulton from Jacksonville Jumbo Shrimp. |
| May 5 | Chris Paddack | Designated for Assignment | Miami Marlins designated RHP Chris Paddack for assignment. |
| May 5 | William Kempner | Recalled | Miami Marlins recalled RHP William Kempner from Jacksonville Jumbo Shrimp. |
| May 4 | Joe Mack | Recalled | Miami Marlins recalled C Joe Mack from Jacksonville Jumbo Shrimp. |
| May 4 | Agustín Ramírez | Optioned | Miami Marlins optioned C Agustín Ramírez to Jacksonville Jumbo Shrimp. |
| May 2 | Josh Ekness | Selected | Miami Marlins selected the contract of RHP Josh Ekness from Jacksonville Jumbo Shrimp. |
| May 2 | Cade Gibson | Optioned | Miami Marlins optioned LHP Cade Gibson to Jacksonville Jumbo Shrimp. |
| Apr 30 | Luis Espinoza | Signed as Free Agent | Miami Marlins signed free agent LHP Luis Espinoza to a minor league contract. |
| Apr 28 | Pete Fairbanks | Status Change | Miami Marlins placed RHP Pete Fairbanks on the 15-day injured list. Nerve irritation. |
| Apr 28 | Cade Gibson | Recalled | Miami Marlins recalled LHP Cade Gibson from Jacksonville Jumbo Shrimp. |
| Apr 27 | Christopher Morel | Status Change | Miami Marlins activated DH Christopher Morel from the 10-day injured list. |
| Apr 27 | Jesus Rios | Signed as Free Agent | Miami Marlins signed free agent RHP Jesus Rios to a minor league contract. |
| Apr 27 | Heriberto Hernández | Optioned | Miami Marlins optioned LF Heriberto Hernández to Jacksonville Jumbo Shrimp. |
| Apr 27 | Christopher Morel | Status Change | Miami Marlins activated LF Christopher Morel from the 10-day injured list. |
| Apr 26 | Mason Vinyard | Signed as Free Agent | Miami Marlins signed free agent RHP Mason Vinyard to a minor league contract. |
| Apr 25 | Austin Slater | Outrighted | Miami Marlins sent LF Austin Slater outright to Jacksonville Jumbo Shrimp. |
| Apr 24 | Cade Austin | Signed as Free Agent | Miami Marlins signed free agent RHP Cade Austin to a minor league contract. |
| Apr 23 | Esteury Ruiz | Status Change | Miami Marlins activated LF Esteury Ruiz from the 10-day injured list. |
| Apr 23 | Austin Slater | Designated for Assignment | Miami Marlins designated LF Austin Slater for assignment. |
| Apr 21 | Christopher Morel | Assigned | Miami Marlins sent LF Christopher Morel on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Apr 20 | Maximo Acosta | Optioned | Miami Marlins optioned SS Maximo Acosta to Jacksonville Jumbo Shrimp. |
| Apr 20 | Maximo Acosta | Status Change | Miami Marlins activated SS Maximo Acosta from the 10-day injured list. |
| Apr 19 | Deyvison De Los Santos | Optioned | Miami Marlins optioned 3B Deyvison De Los Santos to Jacksonville Jumbo Shrimp. |
| Apr 19 | Kyle Stowers | Status Change | Miami Marlins activated LF Kyle Stowers from the 10-day injured list. |
| Apr 16 | Sandy Alcantara | Number Change | RHP Sandy Alcantara changed number to 22. |
| Apr 16 | Owen Caissie | Number Change | RF Owen Caissie changed number to 17. |
| Apr 16 | Lake Bachar | Number Change | RHP Lake Bachar changed number to 84. |
| Apr 16 | Deyvison De Los Santos | Number Change | 3B Deyvison De Los Santos changed number to 63. |
| Apr 16 | Anthony Bender | Number Change | RHP Anthony Bender changed number to 37. |
| Apr 16 | Pete Fairbanks | Number Change | RHP Pete Fairbanks changed number to 29. |
| Apr 16 | Calvin Faucher | Number Change | RHP Calvin Faucher changed number to 53. |
| Apr 16 | Xavier Edwards | Number Change | SS Xavier Edwards changed number to 9. |
| Apr 16 | Janson Junk | Number Change | RHP Janson Junk changed number to 26. |
| Apr 16 | Leo Jiménez | Number Change | SS Leo Jiménez changed number to 19. |
| Apr 16 | Heriberto Hernández | Number Change | LF Heriberto Hernández changed number to 13. |
| Apr 16 | Liam Hicks | Number Change | C Liam Hicks changed number to 34. |
| Apr 16 | John King | Number Change | LHP John King changed number to 47. |
| Apr 16 | Max Meyer | Number Change | RHP Max Meyer changed number to 23. |
| Apr 16 | Chris Paddack | Number Change | RHP Chris Paddack changed number to 33. |
| Apr 16 | Connor Norby | Number Change | 3B Connor Norby changed number to 1. |
| Apr 16 | Andrew Nardi | Number Change | LHP Andrew Nardi changed number to 43. |
| Apr 16 | Jakob Marsee | Number Change | CF Jakob Marsee changed number to 87. |
| Apr 16 | Otto Lopez | Number Change | 2B Otto Lopez changed number to 6. |
| Apr 16 | Agustín Ramírez | Number Change | C Agustín Ramírez changed number to 50. |
| Apr 16 | Eury Pérez | Number Change | RHP Eury Pérez changed number to 39. |
| Apr 16 | Tyler Phillips | Number Change | RHP Tyler Phillips changed number to 30. |
| Apr 16 | Graham Pauley | Number Change | 3B Graham Pauley changed number to 21. |
| Apr 16 | Michael Petersen | Number Change | RHP Michael Petersen changed number to 49. |
| Apr 16 | Javier Sanoja | Number Change | 2B Javier Sanoja changed number to 8. |
| Apr 16 | Austin Slater | Number Change | LF Austin Slater changed number to 15. |
| Apr 15 | Esteury Ruiz | Assigned | Miami Marlins sent LF Esteury Ruiz on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Apr 15 | Esteury Ruiz | Assigned | Miami Marlins sent LF Esteury Ruiz on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Apr 15 | Maximo Acosta | Assigned | Miami Marlins sent SS Maximo Acosta on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Apr 15 | Esteury Ruiz | Assigned | Miami Marlins sent LF Esteury Ruiz on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Apr 15 | Maximo Acosta | Assigned | Miami Marlins sent SS Maximo Acosta on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Apr 15 | Anthony Bender | Number Change | RHP Anthony Bender changed number to 42. |
| Apr 15 | Graham Pauley | Number Change | 3B Graham Pauley changed number to 42. |
| Apr 15 | Chris Paddack | Number Change | RHP Chris Paddack changed number to 42. |
| Apr 15 | Leo Jiménez | Number Change | SS Leo Jiménez changed number to 42. |
| Apr 15 | Lake Bachar | Number Change | RHP Lake Bachar changed number to 42. |
| Apr 15 | Liam Hicks | Number Change | C Liam Hicks changed number to 42. |
| Apr 15 | Pete Fairbanks | Number Change | RHP Pete Fairbanks changed number to 42. |
| Apr 15 | Max Meyer | Number Change | RHP Max Meyer changed number to 42. |
| Apr 15 | Connor Norby | Number Change | 3B Connor Norby changed number to 42. |
| Apr 15 | Agustín Ramírez | Number Change | C Agustín Ramírez changed number to 42. |
| Apr 15 | Jakob Marsee | Number Change | CF Jakob Marsee changed number to 42. |
| Apr 15 | Javier Sanoja | Number Change | 2B Javier Sanoja changed number to 42. |
| Apr 15 | Janson Junk | Number Change | RHP Janson Junk changed number to 42. |
| Apr 15 | Austin Slater | Number Change | LF Austin Slater changed number to 42. |
| Apr 15 | Andrew Nardi | Number Change | LHP Andrew Nardi changed number to 42. |
| Apr 15 | Tyler Phillips | Number Change | RHP Tyler Phillips changed number to 42. |
| Apr 15 | John King | Number Change | LHP John King changed number to 42. |
| Apr 15 | Sandy Alcantara | Number Change | RHP Sandy Alcantara changed number to 42. |
| Apr 15 | Michael Petersen | Number Change | RHP Michael Petersen changed number to 42. |
| Apr 15 | Calvin Faucher | Number Change | RHP Calvin Faucher changed number to 42. |
| Apr 15 | Eury Pérez | Number Change | RHP Eury Pérez changed number to 42. |
| Apr 15 | Deyvison De Los Santos | Number Change | 3B Deyvison De Los Santos changed number to 42. |
| Apr 15 | Heriberto Hernández | Number Change | LF Heriberto Hernández changed number to 42. |
| Apr 15 | Xavier Edwards | Number Change | SS Xavier Edwards changed number to 42. |
| Apr 15 | Otto Lopez | Number Change | 2B Otto Lopez changed number to 42. |
| Apr 15 | Owen Caissie | Number Change | RF Owen Caissie changed number to 42. |
| Apr 14 | Ronelbi Garcia | Signed as Free Agent | Miami Marlins signed free agent RHP Ronelbi Garcia to a minor league contract. |
| Apr 14 | Luis Acevedo | Signed as Free Agent | Miami Marlins signed free agent RHP Luis Acevedo to a minor league contract. |
| Apr 10 | Kyle Stowers | Assigned | Miami Marlins sent LF Kyle Stowers on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Apr 10 | Kyle Stowers | Assigned | Miami Marlins sent LF Kyle Stowers on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Apr 10 | Griffin Conine | Status Change | Miami Marlins placed LF Griffin Conine on the 10-day injured list. Left hamstring strain. |
| Apr 10 | Deyvison De Los Santos | Recalled | Miami Marlins recalled 3B Deyvison De Los Santos from Jacksonville Jumbo Shrimp. |
| Apr 9 | Pete Fairbanks | Status Change | Miami Marlins activated RHP Pete Fairbanks from the paternity list. |
| Apr 9 | Ryan Gusto | Optioned | Miami Marlins optioned RHP Ryan Gusto to Jacksonville Jumbo Shrimp. |
| Apr 6 | Pete Fairbanks | Status Change | Miami Marlins placed RHP Pete Fairbanks on the paternity list. |
| Apr 6 | Ryan Gusto | Recalled | Miami Marlins recalled RHP Ryan Gusto from Jacksonville Jumbo Shrimp. |
| Apr 2 | Logan Whitaker | Trade | Miami Marlins traded RHP Garrett Acton to Minnesota Twins for RHP Logan Whitaker. |
| Mar 30 | Leo Jiménez | Status Change | Miami Marlins activated SS Leo Jiménez. |
| Mar 30 | Deyvison De Los Santos | Optioned | Miami Marlins optioned 3B Deyvison De Los Santos to Jacksonville Jumbo Shrimp. |
| Mar 29 | Garrett Acton | Designated for Assignment | Miami Marlins designated RHP Garrett Acton for assignment. |
| Mar 29 | Dub Gleed | Trade | Toronto Blue Jays traded SS Leo Jiménez to Miami Marlins for SS Dub Gleed and Future Considerations. |
| Mar 28 | Christopher Morel | Status Change | Miami Marlins placed LF Christopher Morel on the 10-day injured list retroactive to March 25, 2026. Left oblique strain. |
| Mar 28 | Deyvison De Los Santos | Recalled | Miami Marlins recalled 3B Deyvison De Los Santos from Jacksonville Jumbo Shrimp. |
| Mar 25 | Austin Slater | Signed as Free Agent | Miami Marlins signed free agent LF Austin Slater. |
| Mar 25 | Esteury Ruiz | Status Change | Miami Marlins placed LF Esteury Ruiz on the 10-day injured list retroactive to March 22, 2026. Left oblique strain. |
| Mar 25 | Kyle Stowers | Status Change | Miami Marlins placed LF Kyle Stowers on the 10-day injured list retroactive to March 22, 2026. Right hamstring strain. |
| Mar 25 | Maximo Acosta | Status Change | Miami Marlins placed SS Maximo Acosta on the 10-day injured list retroactive to March 22, 2026. Left oblique strain. |
| Mar 25 | Adam Mazur | Status Change | Miami Marlins placed RHP Adam Mazur on the 60-day injured list. Right elbow surgery. |
| Mar 23 | Zach McCambley | Outrighted | Miami Marlins sent RHP Zach McCambley outright to Jacksonville Jumbo Shrimp. |
| Mar 22 | Chase Centala | Released | Miami Marlins released RHP Chase Centala. |
| Mar 22 | Zach McCambley | Returned | RHP Zach McCambley returned to Miami Marlins from Philadelphia Phillies. |
| Mar 22 | Cade Gibson | Optioned | Miami Marlins optioned LHP Cade Gibson to Jacksonville Jumbo Shrimp. |
| Mar 21 | Payton Green | Assigned | SS Payton Green assigned to Miami Marlins. |
| Mar 21 | Tony Bullard | Assigned | 3B Tony Bullard assigned to Miami Marlins. |
| Mar 20 | Braxton Garrett | Optioned | Miami Marlins optioned LHP Braxton Garrett to Jacksonville Jumbo Shrimp. |
| Mar 17 | Cody Schrier | Assigned | SS Cody Schrier assigned to Miami Marlins. |
| Mar 17 | Adrian Bello | Assigned | C Adrian Bello assigned to Miami Marlins. |
| Mar 16 | Bradley Blalock | Optioned | Miami Marlins optioned RHP Bradley Blalock to Jacksonville Jumbo Shrimp. |
| Mar 16 | Garrett Acton | Optioned | Miami Marlins optioned RHP Garrett Acton to Jacksonville Jumbo Shrimp. |
| Mar 16 | Jake Clemente | Assigned | RHP Jake Clemente assigned to Miami Marlins. |
| Mar 15 | Joe Mack | Optioned | Miami Marlins optioned C Joe Mack to Jacksonville Jumbo Shrimp. |
| Mar 15 | Ryan Gusto | Optioned | Miami Marlins optioned RHP Ryan Gusto to Jacksonville Jumbo Shrimp. |
| Mar 15 | Luis Leon | Assigned | OF Luis Leon assigned to Miami Marlins. |
| Mar 14 | Jeremy Almonte | Assigned | C Jeremy Almonte assigned to Miami Marlins. |
| Mar 14 | Kaiden Wilson | Assigned | LHP Kaiden Wilson assigned to Miami Marlins. |
| Mar 14 | Jose Monserrate | Assigned | LF Jose Monserrate assigned to Miami Marlins. |
| Mar 14 | Julio Henriquez | Assigned | 1B Julio Henriquez assigned to Miami Marlins. |
| Mar 14 | Yoffry Solano | Assigned | 3B Yoffry Solano assigned to Miami Marlins. |
| Mar 14 | Nixon Chirinos | Assigned | C Nixon Chirinos assigned to Miami Marlins. |
| Mar 14 | Yiddi Cappe | Assigned | SS Yiddi Cappe assigned to Miami Marlins. |
| Mar 13 | Luis Cova | Assigned | OF Luis Cova assigned to Miami Marlins. |
| Mar 11 | Luis Arana | Assigned | SS Luis Arana assigned to Miami Marlins. |
| Mar 10 | Fabian Lopez | Assigned | SS Fabian Lopez assigned to Miami Marlins. |
| Mar 10 | Riskiel Tineo | Assigned | RHP Riskiel Tineo assigned to Miami Marlins. |
| Mar 9 | Xavier Cardenas III | Status Change | RHP Xavier Cardenas III roster status changed by Miami Marlins. |
| Mar 9 | Xavier Cardenas III | Assigned | RHP Xavier Cardenas III assigned to Miami Marlins. |
| Mar 9 | Jake McCutcheon | Assigned | SS Jake McCutcheon assigned to Miami Marlins. |
| Mar 9 | Wilfredo Lara | Assigned | 3B Wilfredo Lara assigned to Miami Marlins. |
| Mar 9 | Eric Rataczak | Assigned | OF Eric Rataczak assigned to Miami Marlins. |
| Mar 9 | Juan Reynoso | Assigned | RHP Juan Reynoso assigned to Miami Marlins. |
| Mar 9 | Chase Centala | Assigned | RHP Chase Centala assigned to Miami Marlins. |
| Mar 8 | Jared Serna | Optioned | Miami Marlins optioned SS Jared Serna to Jacksonville Jumbo Shrimp. |
| Mar 8 | Deyvison De Los Santos | Optioned | Miami Marlins optioned 3B Deyvison De Los Santos to Jacksonville Jumbo Shrimp. |
| Mar 8 | Josh White | Optioned | Miami Marlins optioned RHP Josh White to Jacksonville Jumbo Shrimp. |
| Mar 8 | William Kempner | Optioned | Miami Marlins optioned RHP William Kempner to Jacksonville Jumbo Shrimp. |
| Mar 8 | Dax Fulton | Optioned | Miami Marlins optioned LHP Dax Fulton to Jacksonville Jumbo Shrimp. |
| Mar 8 | Echedry Vargas | Assigned | SS Echedry Vargas assigned to Miami Marlins. |
| Mar 7 | John Cruz | Assigned | RF John Cruz assigned to Miami Marlins. |
| Mar 7 | Emilio Barreras | Assigned | SS Emilio Barreras assigned to Miami Marlins. |
| Mar 7 | Starlyn Caba | Assigned | SS Starlyn Caba assigned to Miami Marlins. |
| Mar 7 | Jadon Williamson | Assigned | RHP Jadon Williamson assigned to Miami Marlins. |
| Mar 7 | Justin Storm | Assigned | LHP Justin Storm assigned to Miami Marlins. |
| Mar 6 | Cody Morissette | Assigned | 2B Cody Morissette assigned to Miami Marlins. |
| Mar 6 | Jacob Jenkins-Cowart | Assigned | OF Jacob Jenkins-Cowart assigned to Miami Marlins. |
| Mar 6 | Cam Clayton | Assigned | SS Cam Clayton assigned to Miami Marlins. |
| Mar 6 | Dub Gleed | Assigned | SS Dub Gleed assigned to Miami Marlins. |
| Mar 6 | Gabe Bierman | Assigned | RHP Gabe Bierman assigned to Miami Marlins. |
| Mar 5 | Micah McDowell | Status Change | OF Micah McDowell roster status changed by Miami Marlins. |
| Mar 5 | Nestor Rios | Assigned | C Nestor Rios assigned to Miami Marlins. |
| Mar 5 | Micah McDowell | Assigned | OF Micah McDowell assigned to Miami Marlins. |
| Mar 3 | Wilson Weber | Status Change | C Wilson Weber roster status changed by Miami Marlins. |
| Mar 3 | PJ Morlando | Assigned | RF PJ Morlando assigned to Miami Marlins. |
| Mar 3 | Wilson Weber | Assigned | C Wilson Weber assigned to Miami Marlins. |
| Mar 3 | Joey Volini | Assigned | LHP Joey Volini assigned to Miami Marlins. |
| Mar 2 | Mark Coley II | Assigned | CF Mark Coley II assigned to Miami Marlins. |
| Mar 2 | Jesus Hernandez | Assigned | 3B Jesus Hernandez assigned to Miami Marlins. |
| Feb 28 | Andrew Salas | Status Change | IF Andrew Salas roster status changed by Miami Marlins. |
| Feb 28 | Abrahan Ramirez | Assigned | 2B Abrahan Ramirez assigned to Miami Marlins. |
| Feb 28 | Cam Cannarella | Assigned | OF Cam Cannarella assigned to Miami Marlins. |
| Feb 28 | Andrew Salas | Assigned | IF Andrew Salas assigned to Miami Marlins. |
| Feb 27 | Diego Bohorquez | Signed as Free Agent | Miami Marlins signed free agent RHP Diego Bohorquez to a minor league contract. |
| Feb 27 | Carson Laws | Assigned | RHP Carson Laws assigned to Miami Marlins. |
| Feb 25 | Dillon Head | Assigned | CF Dillon Head assigned to Miami Marlins. |
| Feb 25 | Victor Ortega | Assigned | C Victor Ortega assigned to Miami Marlins. |
| Feb 25 | Orlando Ortiz-Mayr | Assigned | RHP Orlando Ortiz-Mayr assigned to Miami Marlins. |
| Feb 24 | Esmil Valencia | Assigned | CF Esmil Valencia assigned to Miami Marlins. |
| Feb 24 | Carter Johnson | Assigned | SS Carter Johnson assigned to Miami Marlins. |
| Feb 24 | Garret Forrester | Assigned | 3B Garret Forrester assigned to Miami Marlins. |
| Feb 24 | Will Schomberg | Assigned | RHP Will Schomberg assigned to Miami Marlins. |
| Feb 24 | Aiden May | Assigned | RHP Aiden May assigned to Miami Marlins. |
| Feb 24 | Jacob Miller | Assigned | RHP Jacob Miller assigned to Miami Marlins. |
| Feb 23 | Gage Miller | Status Change | 2B Gage Miller roster status changed by Miami Marlins. |
| Feb 23 | Drew Faurot | Assigned | 2B Drew Faurot assigned to Miami Marlins. |
| Feb 23 | Gage Miller | Assigned | 2B Gage Miller assigned to Miami Marlins. |
| Feb 23 | Connor Caskenette | Assigned | C Connor Caskenette assigned to Miami Marlins. |
| Feb 23 | Julio Mendez | Assigned | LHP Julio Mendez assigned to Miami Marlins. |
| Feb 23 | Peyton Fosher | Assigned | RHP Peyton Fosher assigned to Miami Marlins. |
| Feb 23 | Manuel Genao | Assigned | RHP Manuel Genao assigned to Miami Marlins. |
| Feb 23 | Colby Martin | Assigned | RHP Colby Martin assigned to Miami Marlins. |
| Feb 22 | Ethan O'Donnell | Status Change | CF Ethan O'Donnell roster status changed by Miami Marlins. |
| Feb 22 | Juan Matheus | Status Change | SS Juan Matheus roster status changed by Miami Marlins. |
| Feb 22 | Juan Matheus | Status Change | SS Juan Matheus roster status changed by Miami Marlins. |
| Feb 22 | Brayan Mendoza | Status Change | LHP Brayan Mendoza roster status changed by Miami Marlins. |
| Feb 22 | Ethan O'Donnell | Status Change | CF Ethan O'Donnell roster status changed by Miami Marlins. |
| Feb 22 | Andres Valor | Assigned | CF Andres Valor assigned to Miami Marlins. |
| Feb 22 | Ethan O'Donnell | Assigned | CF Ethan O'Donnell assigned to Miami Marlins. |
| Feb 22 | Juan Matheus | Assigned | SS Juan Matheus assigned to Miami Marlins. |
| Feb 22 | Michael Snyder | Assigned | 3B Michael Snyder assigned to Miami Marlins. |
| Feb 22 | Chris Arroyo | Assigned | 1B Chris Arroyo assigned to Miami Marlins. |
| Feb 22 | RJ Shunck | Assigned | LHP RJ Shunck assigned to Miami Marlins. |
| Feb 22 | Liomar Martinez | Assigned | RHP Liomar Martinez assigned to Miami Marlins. |
| Feb 22 | Brayan Mendoza | Assigned | LHP Brayan Mendoza assigned to Miami Marlins. |
| Feb 22 | Jake Walkinshaw | Assigned | RHP Jake Walkinshaw assigned to Miami Marlins. |
| Feb 21 | Jay Beshears | Status Change | 1B Jay Beshears roster status changed by Miami Marlins. |
| Feb 21 | Chase Jaworsky | Status Change | SS Chase Jaworsky roster status changed by Miami Marlins. |
| Feb 21 | Alex Williams | Status Change | RHP Alex Williams roster status changed by Miami Marlins. |
| Feb 21 | Chase Jaworsky | Status Change | SS Chase Jaworsky roster status changed by Miami Marlins. |
| Feb 21 | Jay Beshears | Status Change | 1B Jay Beshears roster status changed by Miami Marlins. |
| Feb 21 | Ian Lewis Jr. | Status Change | 2B Ian Lewis Jr. roster status changed by Miami Marlins. |
| Feb 21 | Emaarion Boyd | Status Change | LF Emaarion Boyd roster status changed by Miami Marlins. |
| Feb 21 | Spencer Bramwell | Status Change | C Spencer Bramwell roster status changed by Miami Marlins. |
| Feb 21 | Emaarion Boyd | Assigned | LF Emaarion Boyd assigned to Miami Marlins. |
| Feb 21 | Spencer Bramwell | Assigned | C Spencer Bramwell assigned to Miami Marlins. |
| Feb 21 | Colby Shade | Assigned | OF Colby Shade assigned to Miami Marlins. |
| Feb 21 | Ian Lewis Jr. | Assigned | 2B Ian Lewis Jr. assigned to Miami Marlins. |
| Feb 21 | Chase Jaworsky | Assigned | SS Chase Jaworsky assigned to Miami Marlins. |
| Feb 21 | Jay Beshears | Assigned | 1B Jay Beshears assigned to Miami Marlins. |
| Feb 21 | Alex Williams | Assigned | RHP Alex Williams assigned to Miami Marlins. |
| Feb 21 | Brandon White | Assigned | RHP Brandon White assigned to Miami Marlins. |
| Feb 20 | Stiveen Rojas | Signed as Free Agent | Miami Marlins signed free agent LHP Stiveen Rojas to a minor league contract. |
| Feb 16 | Josh Simpson | Trade | Miami Marlins traded LHP Josh Simpson to Seattle Mariners for cash. |
| Feb 13 | John King | Signed as Free Agent | Miami Marlins signed free agent LHP John King. |
| Feb 12 | Josh Simpson | Designated for Assignment | Miami Marlins designated LHP Josh Simpson for assignment. |
| Feb 12 | Ronny Henriquez | Status Change | Miami Marlins placed RHP Ronny Henriquez on the 60-day injured list. Right Elbow Surgery. |
| Feb 12 | Chris Paddack | Signed as Free Agent | Miami Marlins signed free agent RHP Chris Paddack. |
| Feb 12 | Yanixan Resendiz | Signed as Free Agent | Miami Marlins signed free agent RHP Yanixan Resendiz to a minor league contract. |
| Feb 12 | Francisco Del Campo | Signed as Free Agent | Miami Marlins signed free agent C Francisco Del Campo to a minor league contract. |
| Feb 9 | Franklin Mejia | Signed as Free Agent | Miami Marlins signed free agent LHP Franklin Mejia to a minor league contract. |
| Feb 6 | Luis Moreno | Signed as Free Agent | Miami Marlins signed free agent RHP Luis Moreno to a minor league contract. |
| Feb 6 | Jake Walkinshaw | Signed as Free Agent | Miami Marlins signed free agent RHP Jake Walkinshaw to a minor league contract. |
| Feb 6 | Angel Brachi | Trade | Miami Marlins traded CF Victor Mesa Jr. to Tampa Bay Rays for IF Angel Brachi. |
| Feb 5 | Victor Mesa Jr. | Status Change | CF Victor Mesa Jr. roster status changed by Miami Marlins. |
| Feb 3 | Victor Mesa Jr. | Designated for Assignment | Miami Marlins designated CF Victor Mesa Jr. for assignment. |
| Feb 3 | Garrett Acton | Claimed Off Waivers | Miami Marlins claimed RHP Garrett Acton off waivers from Colorado Rockies. |
| Jan 29 | Deyvison De Los Santos | Number Change | 3B Deyvison De Los Santos changed number to 63. |
| Jan 29 | Heriberto Hernández | Number Change | LF Heriberto Hernández changed number to 13. |
| Jan 29 | Javier Sanoja | Number Change | 2B Javier Sanoja changed number to 8. |
| Jan 29 | Braxton Garrett | Number Change | LHP Braxton Garrett changed number to 20. |
| Jan 29 | Matthew Etzel | Assigned | Miami Marlins invited non-roster LF Matthew Etzel to spring training. |
| Jan 29 | Fenwick Trimble | Assigned | Miami Marlins invited non-roster OF Fenwick Trimble to spring training. |
| Jan 29 | Andrew Pintar | Assigned | Miami Marlins invited non-roster CF Andrew Pintar to spring training. |
| Jan 29 | Daniel Johnson | Assigned | Miami Marlins invited non-roster CF Daniel Johnson to spring training. |
| Jan 29 | Johnny Olmstead | Assigned | Miami Marlins invited non-roster SS Johnny Olmstead to spring training. |
| Jan 29 | Nathan Martorella | Assigned | Miami Marlins invited non-roster 1B Nathan Martorella to spring training. |
| Jan 29 | Dylan Jasso | Assigned | Miami Marlins invited non-roster 1B Dylan Jasso to spring training. |
| Jan 29 | Jacob Berry | Assigned | Miami Marlins invited non-roster 1B Jacob Berry to spring training. |
| Jan 29 | Jesús Bastidas | Assigned | Miami Marlins invited non-roster SS Jesús Bastidas to spring training. |
| Jan 29 | Sam Praytor | Assigned | Miami Marlins invited non-roster C Sam Praytor to spring training. |
| Jan 29 | Brian Navarreto | Assigned | Miami Marlins invited non-roster 1B Brian Navarreto to spring training. |
| Jan 29 | Ryan Ignoffo | Assigned | Miami Marlins invited non-roster C Ryan Ignoffo to spring training. |
| Jan 29 | Bennett Hostetler | Assigned | Miami Marlins invited non-roster C Bennett Hostetler to spring training. |
| Jan 29 | Tyler Zuber | Assigned | Miami Marlins invited non-roster RHP Tyler Zuber to spring training. |
| Jan 29 | Samuel Vásquez | Assigned | Miami Marlins invited non-roster RHP Samuel Vasquez to spring training. |
| Jan 29 | Jesus Tinoco | Assigned | Miami Marlins invited non-roster RHP Jesus Tinoco to spring training. |
| Jan 29 | Jack Ralston | Assigned | Miami Marlins invited non-roster RHP Jack Ralston to spring training. |
| Jan 29 | Karson Milbrandt | Assigned | Miami Marlins invited non-roster RHP Karson Milbrandt to spring training. |
| Jan 29 | Evan McKendry | Assigned | Miami Marlins invited non-roster RHP Evan McKendry to spring training. |
| Jan 29 | Josh Ekness | Assigned | Miami Marlins invited non-roster RHP Josh Ekness to spring training. |
| Jan 29 | Nigel Belgrave | Assigned | Miami Marlins invited non-roster RHP Nigel Belgrave to spring training. |
| Jan 29 | Zach Brzykcy | Assigned | Miami Marlins invited non-roster RHP Zach Brzykcy to spring training. |
| Jan 29 | Dale Stanavich | Assigned | Miami Marlins invited non-roster LHP Dale Stanavich to spring training. |
| Jan 29 | Patrick Monteverde | Assigned | Miami Marlins invited non-roster LHP Patrick Monteverde to spring training. |
| Jan 29 | Justin King | Assigned | Miami Marlins invited non-roster LHP Justin King to spring training. |
| Jan 29 | Brendan Jones | Assigned | Miami Marlins invited non-roster CF Brendan Jones to spring training. |
| Jan 29 | Dillon Lewis | Assigned | Miami Marlins invited non-roster OF Dillon Lewis to spring training. |
| Jan 29 | Kemp Alderman | Assigned | Miami Marlins invited non-roster RF Kemp Alderman to spring training. |
| Jan 29 | Robby Snelling | Assigned | Miami Marlins invited non-roster LHP Robby Snelling to spring training. |
| Jan 29 | Thomas White | Assigned | Miami Marlins invited non-roster LHP Thomas White to spring training. |
| Jan 27 | Stephen Jones | Signed as Free Agent | Miami Marlins signed free agent RHP Stephen Jones to a minor league contract and invited him to spring training. |
| Jan 27 | Osvaldo Bido | Claimed Off Waivers | Los Angeles Angels claimed RHP Osvaldo Bido off waivers from Miami Marlins. |
| Jan 23 | Luis Palacios | Signed as Free Agent | Miami Marlins signed free agent LHP Luis Palacios to a minor league contract. |
| Jan 22 | Carlos Martinez | Trade | San Francisco Giants traded C Carlos Martinez to Miami Marlins for cash. |
| Jan 20 | Osvaldo Bido | Designated for Assignment | Miami Marlins designated RHP Osvaldo Bido for assignment. |
| Jan 20 | Jake Brooks | Trade | Colorado Rockies traded RHP Bradley Blalock to Miami Marlins for RHP Jake Brooks. |
| Jan 16 | Osvaldo Bido | Claimed Off Waivers | Miami Marlins claimed RHP Osvaldo Bido off waivers from Tampa Bay Rays. |
| Jan 15 | Evan Da Souza | Signed as Free Agent | Miami Marlins signed free agent RHP Evan Da Souza to a minor league contract. |
| Jan 15 | Jose Camacho | Signed as Free Agent | Miami Marlins signed free agent OF Jose Camacho to a minor league contract. |
| Jan 15 | Eliezer Peralta | Signed as Free Agent | Miami Marlins signed free agent RHP Eliezer Peralta to a minor league contract. |
| Jan 15 | Michael De La Cruz | Signed as Free Agent | Miami Marlins signed free agent OF Michael De La Cruz to a minor league contract. |
| Jan 15 | Onardi Santos | Signed as Free Agent | Miami Marlins signed free agent LHP Onardi Santos to a minor league contract. |
| Jan 15 | Justin Batista | Signed as Free Agent | Miami Marlins signed free agent RHP Justin Batista to a minor league contract. |
| Jan 15 | Ronald Rodriguez | Signed as Free Agent | Miami Marlins signed free agent OF Ronald Rodriguez to a minor league contract. |
| Jan 15 | Ronny Muñoz | Signed as Free Agent | Miami Marlins signed free agent SS Ronny Muñoz to a minor league contract. |
| Jan 15 | Jose Rosal | Signed as Free Agent | Miami Marlins signed free agent RHP Jose Rosal to a minor league contract. |
| Jan 15 | Daniel Pire | Signed as Free Agent | Miami Marlins signed free agent C Daniel Pire to a minor league contract. |
| Jan 15 | Raunny Figueredo | Signed as Free Agent | Miami Marlins signed free agent OF Raunny Figueredo to a minor league contract. |
| Jan 15 | Yendi Pirela | Signed as Free Agent | Miami Marlins signed free agent 3B Yendi Pirela to a minor league contract. |
| Jan 15 | Santiago Solarte | Signed as Free Agent | Miami Marlins signed free agent SS Santiago Solarte to a minor league contract. |
| Jan 15 | Carlos De Los Santos | Signed as Free Agent | Miami Marlins signed free agent OF Carlos De Los Santos to a minor league contract. |
| Jan 15 | Yerison Mendez | Signed as Free Agent | Miami Marlins signed free agent RHP Yerison Mendez to a minor league contract. |
| Jan 15 | Eliecer Mendoza | Signed as Free Agent | Miami Marlins signed free agent C Eliecer Mendoza to a minor league contract. |
| Jan 15 | Ezequiel Jaime | Signed as Free Agent | Miami Marlins signed free agent OF Ezequiel Jaime to a minor league contract. |
| Jan 15 | Jordani Peguero | Signed as Free Agent | Miami Marlins signed free agent 2B Jordani Peguero to a minor league contract. |
| Jan 15 | Bernardo Doc | Signed as Free Agent | Miami Marlins signed free agent SS Bernardo Doc to a minor league contract. |
| Jan 15 | Maikel Acosta | Signed as Free Agent | Miami Marlins signed free agent SS Maikel Acosta to a minor league contract. |
| Jan 15 | Enyer Antonio | Signed as Free Agent | Miami Marlins signed free agent SS Enyer Antonio to a minor league contract. |
| Jan 13 | Dylan Jasso | Trade | Miami Marlins traded LHP Ryan Weathers to New York Yankees for CF Brendan Jones, OF Dillon Lewis, 1B Dylan Jasso and SS Juan Matheus. |
| Jan 7 | Cristian Hernández | Status Change | SS Cristian Hernandez roster status changed by Miami Marlins. |
| Jan 7 | Edgardo De Leon | Trade | Miami Marlins traded RHP Edward Cabrera to Chicago Cubs for RF Owen Caissie, SS Cristian Hernandez and IF Edgardo De Leon. |
| Jan 5 | Jesus Tinoco | Signed as Free Agent | Miami Marlins signed free agent RHP Jesus Tinoco to a minor league contract. |
| Jan 2 | Eric Wagaman | Trade | Miami Marlins traded 1B Eric Wagaman to Minnesota Twins for LHP Kade Bragg. |
| Jan 1 | Eric Wagaman | Status Change | 1B Eric Wagaman roster status changed by Miami Marlins. |