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MIA · 2024 transactions
Data through 2026-10-06
| Date | Player | Type | Detail |
|---|---|---|---|
| Dec 29 | Vidal Bruján | Trade | Miami Marlins traded SS Vidal Bruján to Chicago Cubs for 1B Matt Mervis and cash. |
| Dec 22 | Starlyn Caba | Status Change | SS Starlyn Caba roster status changed by Miami Marlins. |
| Dec 22 | Emaarion Boyd | Status Change | LF Emaarion Boyd roster status changed by Miami Marlins. |
| Dec 22 | Starlyn Caba | Trade | Philadelphia Phillies traded LF Emaarion Boyd and SS Starlyn Caba to Miami Marlins for LHP Jesús Luzardo and C Paul McIntosh. |
| Dec 20 | Vidal Bruján | Designated for Assignment | Miami Marlins designated SS Vidal Bruján for assignment. |
| Dec 20 | Eric Wagaman | Signed as Free Agent | Miami Marlins signed free agent 3B Eric Wagaman. |
| Dec 11 | Ricky DeVito | Status Change | RHP Ricky DeVito roster status changed by Miami Marlins. |
| Dec 11 | Jack Winkler | Status Change | SS Jack Winkler roster status changed by Miami Marlins. |
| Dec 11 | Jack Winkler | Assigned | SS Jack Winkler assigned to Miami Marlins. |
| Dec 11 | Anderson Pilar | Rule 5 Selection | Atlanta Braves purchased contract of RHP Anderson Pilar from Miami Marlins in the Rule 5 Draft. |
| Dec 11 | Liam Hicks | Rule 5 Selection | Miami Marlins purchased contract of C Liam Hicks from Detroit Tigers in the Rule 5 Draft. |
| Dec 11 | Brayan Mendoza | Trade | Miami Marlins traded 3B Jake Burger to Texas Rangers for SS Echedry Vargas, SS Max Acosta and LHP Brayan Mendoza. |
| Dec 10 | Jake Burger | Status Change | 3B Jake Burger roster status changed by Miami Marlins. |
| Dec 9 | Mike Baumann | Released | Miami Marlins released RHP Mike Baumann. |
| Nov 20 | Robinson Piña | Signed as Free Agent | Miami Marlins signed free agent RHP Robinson Pina to a minor league contract. |
| Nov 19 | Jared Serna | Selected | Miami Marlins selected the contract of SS Jared Serna from Jacksonville Jumbo Shrimp. |
| Nov 19 | Deyvison De Los Santos | Selected | Miami Marlins selected the contract of 3B Deyvison De Los Santos from Jacksonville Jumbo Shrimp. |
| Nov 19 | Dax Fulton | Selected | Miami Marlins selected the contract of LHP Dax Fulton from Pensacola Blue Wahoos. |
| Nov 15 | Christian Roa | Outrighted | Miami Marlins sent RHP Christian Roa outright to Jacksonville Jumbo Shrimp. |
| Nov 14 | Christian Roa | Status Change | RHP Christian Roa roster status changed by Miami Marlins. |
| Nov 13 | John Rooney | Status Change | LHP John Rooney roster status changed by Miami Marlins. |
| Nov 13 | Ronny Simon | Signed as Free Agent | Miami Marlins signed free agent OF Ronny Simon to a minor league contract. |
| Nov 13 | John Rooney | Assigned | LHP John Rooney assigned to Miami Marlins. |
| Nov 13 | Heriberto Hernández | Signed as Free Agent | Miami Marlins signed free agent RF Heriberto Hernandez to a minor league contract. |
| Nov 5 | Michael Petersen | Claimed Off Waivers | Toronto Blue Jays claimed RHP Michael Petersen off waivers from Miami Marlins. |
| Nov 4 | Christian Roa | Status Change | Miami Marlins activated RHP Christian Roa. |
| Nov 4 | Josh Simpson | Outrighted | Miami Marlins sent LHP Josh Simpson outright to Jacksonville Jumbo Shrimp. |
| Nov 4 | Luarbert Arias | Selected | Miami Marlins selected the contract of RHP Luarbert Arias from Jacksonville Jumbo Shrimp. |
| Nov 4 | Sixto Sánchez | Outrighted | Miami Marlins sent RHP Sixto Sánchez outright to Jacksonville Jumbo Shrimp. |
| Nov 4 | Sixto Sánchez | Status Change | Miami Marlins activated RHP Sixto Sánchez from the 60-day injured list. |
| Nov 4 | Eury Pérez | Status Change | Miami Marlins activated RHP Eury Pérez from the 60-day injured list. |
| Nov 4 | Andrew Nardi | Status Change | Miami Marlins activated LHP Andrew Nardi from the 60-day injured list. |
| Nov 4 | Jesús Luzardo | Status Change | Miami Marlins activated LHP Jesús Luzardo from the 60-day injured list. |
| Nov 4 | Braxton Garrett | Status Change | Miami Marlins activated LHP Braxton Garrett from the 60-day injured list. |
| Nov 4 | Sandy Alcantara | Status Change | Miami Marlins activated RHP Sandy Alcantara from the 60-day injured list. |
| Nov 4 | John McMillon | Claimed Off Waivers | Philadelphia Phillies claimed RHP John McMillon off waivers from Miami Marlins. |
| Nov 4 | Anthony Maldonado | Claimed Off Waivers | Athletics claimed RHP Anthony Maldonado off waivers from Miami Marlins. |
| Nov 3 | Josh Simpson | Status Change | LHP Josh Simpson roster status changed by Miami Marlins. |
| Nov 1 | David Hensley | Outrighted | Miami Marlins sent LF David Hensley outright to Jacksonville Jumbo Shrimp. |
| Nov 1 | Shaun Anderson | Outrighted | Miami Marlins sent RHP Shaun Anderson outright to Jacksonville Jumbo Shrimp. |
| Nov 1 | Darren McCaughan | Outrighted | Miami Marlins sent RHP Darren McCaughan outright to Jacksonville Jumbo Shrimp. |
| Nov 1 | Adam Oller | Outrighted | Miami Marlins sent RHP Adam Oller outright to Jacksonville Jumbo Shrimp. |
| Nov 1 | Roddery Muñoz | Claimed Off Waivers | St. Louis Cardinals claimed RHP Roddery Muñoz off waivers from Miami Marlins. |
| Nov 1 | Christian Roa | Claimed Off Waivers | Miami Marlins claimed RHP Christian Roa off waivers from Cincinnati Reds. |
| Oct 1 | Adam Mazur | Recalled | Miami Marlins recalled RHP Adam Mazur from Jacksonville Jumbo Shrimp. |
| Oct 1 | Josh Simpson | Recalled | Miami Marlins recalled LHP Josh Simpson from Jacksonville Jumbo Shrimp. |
| Oct 1 | David Hensley | Recalled | Miami Marlins recalled LF David Hensley from Jacksonville Jumbo Shrimp. |
| Oct 1 | Agustín Ramírez | Recalled | Miami Marlins recalled C Agustin Ramirez from Jacksonville Jumbo Shrimp. |
| Oct 1 | Graham Pauley | Recalled | Miami Marlins recalled 3B Graham Pauley from Jacksonville Jumbo Shrimp. |
| Oct 1 | Victor Mesa Jr. | Recalled | Miami Marlins recalled CF Victor Mesa Jr. from Jacksonville Jumbo Shrimp. |
| Oct 1 | Roddery Muñoz | Recalled | Miami Marlins recalled RHP Roddery Muñoz from Jacksonville Jumbo Shrimp. |
| Oct 1 | George Soriano | Recalled | Miami Marlins recalled RHP George Soriano from Jacksonville Jumbo Shrimp. |
| Oct 1 | John McMillon | Status Change | Miami Marlins activated RHP John McMillon from the 15-day injured list. |
| Oct 1 | Max Meyer | Status Change | Miami Marlins activated RHP Max Meyer from the 15-day injured list. |
| Oct 1 | Calvin Faucher | Status Change | Miami Marlins activated RHP Calvin Faucher from the 15-day injured list. |
| Oct 1 | Declan Cronin | Status Change | Miami Marlins activated RHP Declan Cronin from the 15-day injured list. |
| Sep 27 | Mike Baumann | Status Change | Miami Marlins activated RHP Mike Baumann from the paternity list. |
| Sep 27 | Declan Cronin | Status Change | Miami Marlins placed RHP Declan Cronin on the 15-day injured list. Left knew patellar tendonitis. |
| Sep 25 | Cristian Pache | Outrighted | Miami Marlins sent CF Cristian Pache outright to Jacksonville Jumbo Shrimp. |
| Sep 24 | Anthony Maldonado | Recalled | Miami Marlins recalled RHP Anthony Maldonado from Jacksonville Jumbo Shrimp. |
| Sep 24 | Dane Myers | Recalled | Miami Marlins recalled RF Dane Myers from Jacksonville Jumbo Shrimp. |
| Sep 24 | Mike Baumann | Status Change | Miami Marlins placed RHP Mike Baumann on the paternity list. |
| Sep 24 | Cristian Pache | Designated for Assignment | Miami Marlins designated CF Cristian Pache for assignment. |
| Sep 21 | José Devers | Outrighted | Miami Marlins sent SS José Devers outright to Jacksonville Jumbo Shrimp. |
| Sep 21 | Sixto Sánchez | Assigned | Miami Marlins sent RHP Sixto Sánchez on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Sep 20 | Jeff Lindgren | Outrighted | Miami Marlins sent RHP Jeff Lindgren outright to Jacksonville Jumbo Shrimp. |
| Sep 20 | Shaun Anderson | Selected | Miami Marlins selected the contract of RHP Shaun Anderson from Jacksonville Jumbo Shrimp. |
| Sep 20 | George Soriano | Optioned | Miami Marlins optioned RHP George Soriano to Jacksonville Jumbo Shrimp. |
| Sep 19 | Derek Hill | Number Change | CF Derek Hill changed number to 3. |
| Sep 19 | David Hensley | Optioned | Miami Marlins optioned LF David Hensley to Jacksonville Jumbo Shrimp. |
| Sep 19 | José Devers | Designated for Assignment | Miami Marlins designated SS José Devers for assignment. |
| Sep 19 | Derek Hill | Status Change | Miami Marlins activated LF Derek Hill from the 10-day injured list. |
| Sep 19 | Vidal Bruján | Status Change | Miami Marlins activated 2B Vidal Bruján from the 10-day injured list. |
| Sep 18 | Jeff Lindgren | Designated for Assignment | Miami Marlins designated RHP Jeff Lindgren for assignment. |
| Sep 18 | Ryan Weathers | Status Change | Miami Marlins activated LHP Ryan Weathers from the 60-day injured list. |
| Sep 17 | Derek Hill | Assigned | Miami Marlins sent LF Derek Hill on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Sep 17 | Derek Hill | Assigned | Miami Marlins sent LF Derek Hill on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Sep 17 | Dane Myers | Assigned | Miami Marlins sent RF Dane Myers on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Sep 17 | Vidal Bruján | Assigned | Miami Marlins sent 2B Vidal Bruján on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Sep 14 | Jonathan Bermúdez | Outrighted | Miami Marlins sent LHP Jonathan Bermúdez outright to Jacksonville Jumbo Shrimp. |
| Sep 12 | Jonathan Bermúdez | Designated for Assignment | Miami Marlins designated LHP Jonathan Bermúdez for assignment. |
| Sep 12 | John McMillon | Status Change | Miami Marlins placed RHP John McMillon on the 15-day injured list. Right elbow tightness. |
| Sep 12 | Jeff Lindgren | Selected | Miami Marlins selected the contract of RHP Jeff Lindgren from Jacksonville Jumbo Shrimp. |
| Sep 12 | Michael Petersen | Status Change | Miami Marlins activated RHP Michael Petersen. |
| Sep 12 | Brett de Geus | Claimed Off Waivers | Toronto Blue Jays claimed RHP Brett de Geus off waivers from Miami Marlins. |
| Sep 11 | Braxton Garrett | Assigned | Miami Marlins sent LHP Braxton Garrett on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Sep 10 | Brett de Geus | Designated for Assignment | Miami Marlins designated RHP Brett de Geus for assignment. |
| Sep 10 | Michael Petersen | Claimed Off Waivers | Miami Marlins claimed RHP Michael Petersen off waivers from Los Angeles Dodgers. |
| Sep 9 | Austin Kitchen | Claimed Off Waivers | Seattle Mariners claimed LHP Austin Kitchen off waivers from Miami Marlins. |
| Sep 8 | Ryan Weathers | Assigned | Miami Marlins sent LHP Ryan Weathers on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Sep 8 | Austin Kitchen | Status Change | LHP Austin Kitchen roster status changed by Miami Marlins. |
| Sep 8 | Ryan Weathers | Assigned | Miami Marlins sent LHP Ryan Weathers on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Sep 7 | Andrew Nardi | Status Change | Miami Marlins transferred LHP Andrew Nardi from the 15-day injured list to the 60-day injured list. Left elbow muscle injury. |
| Sep 7 | Austin Kitchen | Designated for Assignment | Miami Marlins designated LHP Austin Kitchen for assignment. |
| Sep 7 | Anthony Maldonado | Optioned | Miami Marlins optioned RHP Anthony Maldonado to Jacksonville Jumbo Shrimp. |
| Sep 7 | Derek Hill | Status Change | Miami Marlins placed LF Derek Hill on the 10-day injured list retroactive to September 5, 2024. Left shoulder impingement. |
| Sep 7 | Calvin Faucher | Status Change | Miami Marlins placed RHP Calvin Faucher on the 15-day injured list retroactive to September 5, 2024. Right shoulder impingement. |
| Sep 7 | Max Meyer | Status Change | Miami Marlins placed RHP Max Meyer on the 15-day injured list retroactive to September 4, 2024. Right shoulder bursitis. |
| Sep 7 | Javier Sanoja | Selected | Miami Marlins selected the contract of IF Javier Sanoja from Jacksonville Jumbo Shrimp. |
| Sep 7 | Jonathan Bermúdez | Selected | Miami Marlins selected the contract of LHP Jonathan Bermúdez from Jacksonville Jumbo Shrimp. |
| Sep 7 | George Soriano | Recalled | Miami Marlins recalled RHP George Soriano from Jacksonville Jumbo Shrimp. |
| Sep 7 | Lake Bachar | Recalled | Miami Marlins recalled RHP Lake Bachar from Jacksonville Jumbo Shrimp. |
| Sep 7 | Anthony Bender | Status Change | Miami Marlins activated RHP Anthony Bender from the 15-day injured list. |
| Sep 5 | Kent Emanuel | Outrighted | Miami Marlins sent LHP Kent Emanuel outright to Jacksonville Jumbo Shrimp. |
| Sep 5 | Ali Sánchez | Outrighted | Miami Marlins sent C Ali Sánchez outright to Jacksonville Jumbo Shrimp. |
| Sep 5 | Braxton Garrett | Assigned | Miami Marlins sent LHP Braxton Garrett on a rehab assignment to Jupiter Hammerheads. |
| Sep 5 | Emmanuel Ramirez | Claimed Off Waivers | Toronto Blue Jays claimed RHP Emmanuel Ramirez off waivers from Miami Marlins. |
| Sep 4 | Anthony Veneziano | Status Change | Miami Marlins activated LHP Anthony Veneziano. |
| Sep 4 | George Soriano | Optioned | Miami Marlins optioned RHP George Soriano to Jacksonville Jumbo Shrimp. |
| Sep 3 | Xavier Edwards | Number Change | SS Xavier Edwards changed number to 9. |
| Sep 3 | Ryan Weathers | Assigned | Miami Marlins sent LHP Ryan Weathers on a rehab assignment to Jupiter Hammerheads. |
| Sep 3 | Emmanuel Ramirez | Designated for Assignment | Miami Marlins designated RHP Emmanuel Ramirez for assignment. |
| Sep 3 | Kent Emanuel | Designated for Assignment | Miami Marlins designated LHP Kent Emanuel for assignment. |
| Sep 3 | Ali Sánchez | Designated for Assignment | Miami Marlins designated C Ali Sánchez for assignment. |
| Sep 3 | Josh Simpson | Optioned | Miami Marlins optioned LHP Josh Simpson to Jacksonville Jumbo Shrimp. |
| Sep 3 | Anthony Veneziano | Claimed Off Waivers | Miami Marlins claimed LHP Anthony Veneziano off waivers from Kansas City Royals. |
| Sep 3 | Lake Bachar | Claimed Off Waivers | Miami Marlins claimed RHP Lake Bachar off waivers from San Diego Padres. |
| Sep 3 | Anthony Maldonado | Recalled | Miami Marlins recalled RHP Anthony Maldonado from Jacksonville Jumbo Shrimp. |
| Sep 3 | Xavier Edwards | Status Change | Miami Marlins activated SS Xavier Edwards from the 10-day injured list. |
| Sep 2 | Jonathan Bermúdez | Outrighted | Miami Marlins sent LHP Jonathan Bermúdez outright to Jacksonville Jumbo Shrimp. |
| Sep 1 | Darren McCaughan | Recalled | Miami Marlins recalled RHP Darren McCaughan from Jacksonville Jumbo Shrimp. |
| Sep 1 | Jhonny Pereda | Recalled | Miami Marlins recalled C Jhonny Pereda from Jacksonville Jumbo Shrimp. |
| Aug 31 | Anthony Bender | Assigned | Miami Marlins sent RHP Anthony Bender on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Aug 31 | Jonathan Bermúdez | Designated for Assignment | Miami Marlins designated LHP Jonathan Bermúdez for assignment. |
| Aug 31 | Vidal Bruján | Status Change | Miami Marlins placed 2B Vidal Bruján on the 10-day injured list. Right shoulder AC joint sprain. |
| Aug 31 | José Devers | Selected | Miami Marlins selected the contract of SS José Devers from Jacksonville Jumbo Shrimp. |
| Aug 31 | Anthony Bender | Assigned | Miami Marlins sent RHP Anthony Bender on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Aug 28 | Jonathan Bermúdez | Optioned | Miami Marlins optioned LHP Jonathan Bermúdez to Jacksonville Jumbo Shrimp. |
| Aug 28 | Roddery Muñoz | Optioned | Miami Marlins optioned RHP Roddery Muñoz to Jacksonville Jumbo Shrimp. |
| Aug 28 | Austin Kitchen | Recalled | Miami Marlins recalled LHP Austin Kitchen from Jacksonville Jumbo Shrimp. |
| Aug 28 | Xzavion Curry | Recalled | Miami Marlins recalled RHP Xzavion Curry from Jacksonville Jumbo Shrimp. |
| Aug 28 | Forrest Wall | Claimed Off Waivers | Baltimore Orioles claimed 2B Forrest Wall off waivers from Miami Marlins. |
| Aug 27 | Forrest Wall | Status Change | 2B Forrest Wall roster status changed by Miami Marlins. |
| Aug 27 | Tristan Gray | Claimed Off Waivers | Oakland Athletics claimed SS Tristan Gray off waivers from Miami Marlins. |
| Aug 26 | Forrest Wall | Designated for Assignment | Miami Marlins designated 2B Forrest Wall for assignment. |
| Aug 26 | Brett de Geus | Optioned | Miami Marlins optioned RHP Brett de Geus to Jacksonville Jumbo Shrimp. |
| Aug 26 | Mike Baumann | Status Change | Miami Marlins activated RHP Mike Baumann. |
| Aug 26 | Xavier Edwards | Status Change | Miami Marlins placed SS Xavier Edwards on the 10-day injured list retroactive to August 24, 2024. Mild back extensor soreness. |
| Aug 26 | Griffin Conine | Selected | Miami Marlins selected the contract of OF Griffin Conine from Jacksonville Jumbo Shrimp. |
| Aug 25 | Jonathan Bermúdez | Status Change | Miami Marlins activated LHP Jonathan Bermúdez. |
| Aug 25 | Tristan Gray | Designated for Assignment | Miami Marlins designated SS Tristan Gray for assignment. |
| Aug 25 | Mike Baumann | Status Change | RHP Mike Baumann roster status changed by Miami Marlins. |
| Aug 25 | Mike Baumann | Claimed Off Waivers | Miami Marlins claimed RHP Mike Baumann off waivers from Los Angeles Angels. |
| Aug 25 | Jonathan Bermúdez | Selected | Miami Marlins selected the contract of LHP Jonathan Bermúdez from Jacksonville Jumbo Shrimp. |
| Aug 25 | Emmanuel Ramirez | Optioned | Miami Marlins optioned RHP Emmanuel Ramirez to Jacksonville Jumbo Shrimp. |
| Aug 24 | Andrew Nardi | Status Change | Miami Marlins placed LHP Andrew Nardi on the 15-day injured list retroactive to August 22, 2024. Left elbow muscle injury. |
| Aug 24 | George Soriano | Recalled | Miami Marlins recalled RHP George Soriano from Jacksonville Jumbo Shrimp. |
| Aug 21 | Emmanuel Rivera | Claimed Off Waivers | Baltimore Orioles claimed 3B Emmanuel Rivera off waivers from Miami Marlins. |
| Aug 20 | Josh Simpson | Assigned | Miami Marlins sent LHP Josh Simpson on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Aug 19 | Connor Norby | Status Change | Miami Marlins activated 3B Connor Norby. |
| Aug 19 | Connor Norby | Status Change | Miami Marlins activated 3B Connor Norby. |
| Aug 19 | Connor Norby | Number Change | 3B Connor Norby changed number to 1. |
| Aug 19 | Emmanuel Rivera | Designated for Assignment | Miami Marlins designated 3B Emmanuel Rivera for assignment. |
| Aug 19 | Connor Norby | Recalled | Miami Marlins recalled 2B Connor Norby from Jacksonville Jumbo Shrimp. |
| Aug 19 | Adam Oller | Selected | Miami Marlins selected the contract of RHP Adam Oller from Jacksonville Jumbo Shrimp. |
| Aug 19 | George Soriano | Optioned | Miami Marlins optioned RHP George Soriano to Jacksonville Jumbo Shrimp. |
| Aug 16 | Nick Fortes | Status Change | Miami Marlins activated C Nick Fortes from the 10-day injured list. |
| Aug 16 | Jhonny Pereda | Optioned | Miami Marlins optioned C Jhonny Pereda to Jacksonville Jumbo Shrimp. |
| Aug 15 | Emmanuel Ramirez | Recalled | Miami Marlins recalled RHP Emmanuel Ramirez from Jacksonville Jumbo Shrimp. |
| Aug 15 | Anthony Bender | Status Change | Miami Marlins placed RHP Anthony Bender on the 15-day injured list retroactive to August 12, 2024. |
| Aug 13 | Josh Simpson | Assigned | Miami Marlins sent LHP Josh Simpson on a rehab assignment to Pensacola Blue Wahoos. |
| Aug 13 | Josh Simpson | Assigned | Miami Marlins sent LHP Josh Simpson on a rehab assignment to Pensacola Blue Wahoos. |
| Aug 11 | Shaun Anderson | Outrighted | Miami Marlins sent RHP Shaun Anderson outright to Jacksonville Jumbo Shrimp. |
| Aug 11 | Kyle Tyler | Claimed Off Waivers | Philadelphia Phillies claimed RHP Kyle Tyler off waivers from Miami Marlins. |
| Aug 9 | Xzavion Curry | Status Change | Miami Marlins reassigned RHP Xzavion Curry to the minor leagues. |
| Aug 9 | John McMillon | Recalled | Miami Marlins recalled RHP John McMillon from Jacksonville Jumbo Shrimp. |
| Aug 9 | Brett de Geus | Recalled | Miami Marlins recalled RHP Brett de Geus from Jacksonville Jumbo Shrimp. |
| Aug 9 | Emmanuel Ramirez | Optioned | Miami Marlins optioned RHP Emmanuel Ramirez to Jacksonville Jumbo Shrimp. |
| Aug 9 | Darren McCaughan | Optioned | Miami Marlins optioned RHP Darren McCaughan to Jacksonville Jumbo Shrimp. |
| Aug 9 | Kyle Tyler | Designated for Assignment | Miami Marlins designated RHP Kyle Tyler for assignment. |
| Aug 9 | Kent Emanuel | Selected | Miami Marlins selected the contract of LHP Kent Emanuel from Jacksonville Jumbo Shrimp. |
| Aug 9 | Xzavion Curry | Optioned | Miami Marlins optioned RHP Xzavion Curry to Jacksonville Jumbo Shrimp. |
| Aug 9 | Shaun Anderson | Designated for Assignment | Miami Marlins designated RHP Shaun Anderson for assignment. |
| Aug 9 | Xzavion Curry | Claimed Off Waivers | Miami Marlins claimed RHP Xzavion Curry off waivers from Cleveland Guardians. |
| Aug 8 | Nick Gordon | Outrighted | Miami Marlins sent SS Nick Gordon outright to Jacksonville Jumbo Shrimp. |
| Aug 7 | Nick Fortes | Status Change | Miami Marlins placed C Nick Fortes on the 10-day injured list retroactive to August 6, 2024. Right quadriceps strain. |
| Aug 7 | Jhonny Pereda | Recalled | Miami Marlins recalled C Jhonny Pereda from Jacksonville Jumbo Shrimp. |
| Aug 6 | Josh Simpson | Assigned | Miami Marlins sent LHP Josh Simpson on a rehab assignment to Jupiter Hammerheads. |
| Aug 6 | Darren McCaughan | Recalled | Miami Marlins recalled RHP Darren McCaughan from Jacksonville Jumbo Shrimp. |
| Aug 6 | Shaun Anderson | Optioned | Miami Marlins optioned RHP Shaun Anderson to Jacksonville Jumbo Shrimp. |
| Aug 5 | Brett de Geus | Claimed Off Waivers | Miami Marlins claimed RHP Brett de Geus off waivers from Seattle Mariners. |
| Aug 5 | — | Claimed Off Waivers | Miami Marlins claimed off waivers from Seattle Mariners. |
| Aug 5 | Jesus Tinoco | Number Change | RHP Jesus Tinoco changed number to 38. |
| Aug 5 | Derek Hill | Status Change | Miami Marlins activated CF Derek Hill. |
| Aug 5 | Derek Hill | Status Change | Miami Marlins activated CF Derek Hill. |
| Aug 5 | Nick Gordon | Designated for Assignment | Miami Marlins designated SS Nick Gordon for assignment. |
| Aug 3 | Derek Hill | Status Change | CF Derek Hill roster status changed by Miami Marlins. |
| Aug 3 | Forrest Wall | Optioned | Miami Marlins optioned 2B Forrest Wall to Jacksonville Jumbo Shrimp. |
| Aug 3 | Derek Hill | Claimed Off Waivers | Miami Marlins claimed CF Derek Hill off waivers from San Francisco Giants. |
| Aug 2 | Valente Bellozo | Recalled | Miami Marlins recalled RHP Valente Bellozo from Jacksonville Jumbo Shrimp. |
| Aug 2 | Austin Kitchen | Optioned | Miami Marlins optioned LHP Austin Kitchen to Jacksonville Jumbo Shrimp. |
| Aug 2 | John McMillon | Optioned | Miami Marlins optioned RHP John McMillon to Jacksonville Jumbo Shrimp. |
| Aug 2 | John McMillon | Claimed Off Waivers | Miami Marlins claimed RHP John McMillon off waivers from Kansas City Royals. |
| Aug 2 | Cristian Pache | Claimed Off Waivers | Miami Marlins claimed CF Cristian Pache off waivers from Baltimore Orioles. |
| Aug 1 | Austin Kitchen | Status Change | Miami Marlins reassigned LHP Austin Kitchen to the minor leagues. |
| Jul 31 | Kyle Stowers | Status Change | Miami Marlins activated CF Kyle Stowers. |
| Jul 31 | Connor Norby | Optioned | Miami Marlins optioned 2B Connor Norby to Jacksonville Jumbo Shrimp. |
| Jul 30 | Roddery Muñoz | Status Change | Miami Marlins activated RHP Roddery Muñoz. |
| Jul 30 | Graham Pauley | Status Change | Miami Marlins reassigned 3B Graham Pauley to the minor leagues. |
| Jul 30 | Adam Mazur | Status Change | Miami Marlins reassigned RHP Adam Mazur to the minor leagues. |
| Jul 30 | Shaun Anderson | Recalled | Miami Marlins recalled RHP Shaun Anderson from Jacksonville Jumbo Shrimp. |
| Jul 30 | Austin Kitchen | Recalled | Miami Marlins recalled LHP Austin Kitchen from Jacksonville Jumbo Shrimp. |
| Jul 30 | Bryan Hoeing | Trade | Miami Marlins traded LHP Tanner Scott and RHP Bryan Hoeing to San Diego Padres for RHP Adam Mazur, 2B Jay Beshears, LHP Robby Snelling and 3B Graham Pauley. |
| Jul 30 | Jun-Seok Shim | Trade | Miami Marlins traded RF Bryan De La Cruz to Pittsburgh Pirates for RHP Jun-Seok Shim and 3B Garret Forrester. |
| Jul 30 | Braxton Garrett | Status Change | Miami Marlins transferred LHP Braxton Garrett from the 15-day injured list to the 60-day injured list. Left forearm flexor strain. |
| Jul 30 | Roddery Muñoz | Recalled | Miami Marlins recalled RHP Roddery Muñoz from Jacksonville Jumbo Shrimp. |
| Jul 30 | Jesus Tinoco | Claimed Off Waivers | Miami Marlins claimed RHP Jesus Tinoco off waivers from Chicago Cubs. |
| Jul 30 | George Soriano | Recalled | Miami Marlins recalled RHP George Soriano from Jacksonville Jumbo Shrimp. |
| Jul 30 | Huascar Brazobán | Trade | Miami Marlins traded RHP Huascar Brazoban to New York Mets for SS Wilfredo Lara. |
| Jul 30 | David Hensley | Status Change | Miami Marlins activated SS David Hensley. |
| Jul 30 | David Hensley | Status Change | SS David Hensley roster status changed by Miami Marlins. |
| Jul 30 | JT Chargois | Trade | Miami Marlins traded RHP JT Chargois to Seattle Mariners for RHP Will Schomberg. |
| Jul 30 | — | Trade | Miami Marlins traded 1B Josh Bell to Arizona Diamondbacks for Player To Be Named Later. |
| Jul 30 | Trevor Rogers | Trade | Miami Marlins traded LHP Trevor Rogers to Baltimore Orioles for 2B Connor Norby and CF Kyle Stowers. |
| Jul 30 | Jacob Jenkins-Cowart | Signed | Miami Marlins signed OF Jacob Jenkins-Cowart. |
| Jul 29 | David Hensley | Claimed Off Waivers | Miami Marlins claimed SS David Hensley off waivers from Houston Astros. |
| Jul 28 | Forrest Wall | Recalled | Miami Marlins recalled 2B Forrest Wall from Jacksonville Jumbo Shrimp. |
| Jul 27 | Jared Serna | Trade | Miami Marlins traded CF Jazz Chisholm Jr. to New York Yankees for C Agustin Ramirez, 2B Jared Serna and SS Abrahan Ramirez. |
| Jul 27 | Austin Kitchen | Optioned | Miami Marlins optioned LHP Austin Kitchen to Jacksonville Jumbo Shrimp. |
| Jul 27 | Max Meyer | Recalled | Miami Marlins recalled RHP Max Meyer from Jacksonville Jumbo Shrimp. |
| Jul 26 | Austin Kitchen | Recalled | Miami Marlins recalled LHP Austin Kitchen from Jacksonville Jumbo Shrimp. |
| Jul 26 | Emmanuel Ramirez | Recalled | Miami Marlins recalled RHP Emmanuel Ramirez from Jacksonville Jumbo Shrimp. |
| Jul 26 | Roddery Muñoz | Optioned | Miami Marlins optioned RHP Roddery Muñoz to Jacksonville Jumbo Shrimp. |
| Jul 26 | Andrew Pintar | Status Change | SS Andrew Pintar roster status changed by Miami Marlins. |
| Jul 25 | Deyvison De Los Santos | Trade | Miami Marlins traded LHP A.J. Puk to Arizona Diamondbacks for 3B Deyvison De Los Santos and SS Andrew Pintar. |
| Jul 25 | Yonny Chirinos | Outrighted | Miami Marlins sent RHP Yonny Chirinos outright to Jacksonville Jumbo Shrimp. |
| Jul 25 | Forrest Wall | Optioned | Miami Marlins optioned 2B Forrest Wall to Jacksonville Jumbo Shrimp. |
| Jul 25 | Forrest Wall | Claimed Off Waivers | Miami Marlins claimed 2B Forrest Wall off waivers from Atlanta Braves. |
| Jul 23 | Yonny Chirinos | Designated for Assignment | Miami Marlins designated RHP Yonny Chirinos for assignment. |
| Jul 23 | Kyle Tyler | Recalled | Miami Marlins recalled RHP Kyle Tyler from Jacksonville Jumbo Shrimp. |
| Jul 22 | Michael Snyder | Assigned | 3B Michael Snyder assigned to Miami Marlins. |
| Jul 22 | Fenwick Trimble | Signed | Miami Marlins signed OF Fenwick Trimble. |
| Jul 22 | Grant Shepardson | Signed | Miami Marlins signed RHP Grant Shepardson. |
| Jul 22 | Cody Schrier | Signed | Miami Marlins signed SS Cody Schrier. |
| Jul 22 | Nate Payne | Signed | Miami Marlins signed LHP Nate Payne. |
| Jul 22 | Gage Miller | Signed | Miami Marlins signed 2B Gage Miller. |
| Jul 22 | Aiden May | Signed | Miami Marlins signed RHP Aiden May. |
| Jul 22 | Luke Lashutka | Signed | Miami Marlins signed RHP Luke Lashutka. |
| Jul 22 | Carter Johnson | Signed | Miami Marlins signed SS Carter Johnson. |
| Jul 22 | Jessada Brown | Signed | Miami Marlins signed C Jessada Brown. |
| Jul 22 | Payton Green | Signed | Miami Marlins signed SS Payton Green. |
| Jul 22 | Dub Gleed | Signed | Miami Marlins signed 3B Dub Gleed. |
| Jul 22 | Jake Faherty | Signed | Miami Marlins signed RHP Jake Faherty. |
| Jul 22 | Cam Clayton | Signed | Miami Marlins signed SS Cam Clayton. |
| Jul 22 | Chase Centala | Signed | Miami Marlins signed RHP Chase Centala. |
| Jul 22 | Connor Caskenette | Signed | Miami Marlins signed C Connor Caskenette. |
| Jul 22 | Nick Brink | Signed | Miami Marlins signed RHP Nick Brink. |
| Jul 19 | PJ Morlando | Signed | Miami Marlins signed OF PJ Morlando. |
| Jul 19 | Otto Lopez | Status Change | Miami Marlins activated SS Otto Lopez from the 10-day injured list. |
| Jul 18 | Dane Myers | Status Change | Miami Marlins placed OF Dane Myers on the 10-day injured list retroactive to July 15, 2024. Left ankle fracture. |
| Jul 15 | Dane Myers | Status Change | Miami Marlins transferred OF Dane Myers from the 10-day injured list to the 60-day injured list. |
| Jul 12 | Otto Lopez | Assigned | Miami Marlins sent SS Otto Lopez on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Jul 10 | Adam Oller | Signed as Free Agent | Miami Marlins signed free agent RHP Adam Oller to a minor league contract. |
| Jul 9 | Matt Andriese | Outrighted | Miami Marlins sent RHP Matt Andriese outright to Jacksonville Jumbo Shrimp. |
| Jul 7 | Darren McCaughan | Claimed Off Waivers | Miami Marlins claimed RHP Darren McCaughan off waivers from Cleveland Guardians. |
| Jul 7 | Ryan Weathers | Status Change | Miami Marlins transferred LHP Ryan Weathers from the 15-day injured list to the 60-day injured list. Left index finger strain. |
| Jul 7 | Matt Andriese | Designated for Assignment | Miami Marlins designated RHP Matt Andriese for assignment. |
| Jul 7 | Edward Cabrera | Status Change | Miami Marlins activated RHP Edward Cabrera from the 60-day injured list. |
| Jul 5 | Tim Anderson | Released | Miami Marlins released SS Tim Anderson. |
| Jul 5 | Justin King | Signed as Free Agent | Miami Marlins signed free agent LHP Justin King to a minor league contract. |
| Jul 4 | Jonah Bride | Status Change | Miami Marlins activated 1B Jonah Bride. |
| Jul 4 | Otto Lopez | Status Change | Miami Marlins placed SS Otto Lopez on the 10-day injured list retroactive to July 1, 2024. Lower back inflammation. |
| Jul 4 | Jonah Bride | Recalled | Miami Marlins recalled 3B Jonah Bride from Jacksonville Jumbo Shrimp. |
| Jul 4 | Anthony Maldonado | Optioned | Miami Marlins optioned RHP Anthony Maldonado to Jacksonville Jumbo Shrimp. |
| Jul 4 | Matt Andriese | Selected | Miami Marlins selected the contract of RHP Matt Andriese from Jacksonville Jumbo Shrimp. |
| Jul 3 | Valente Bellozo | Optioned | Miami Marlins optioned RHP Valente Bellozo to Jacksonville Jumbo Shrimp. |
| Jul 3 | Anthony Maldonado | Recalled | Miami Marlins recalled RHP Anthony Maldonado from Jacksonville Jumbo Shrimp. |
| Jul 2 | Tim Anderson | Designated for Assignment | Miami Marlins designated SS Tim Anderson for assignment. |
| Jul 2 | Xavier Edwards | Recalled | Miami Marlins recalled SS Xavier Edwards from Jacksonville Jumbo Shrimp. |
| Jun 28 | Kent Emanuel | Outrighted | Miami Marlins sent LHP Kent Emanuel outright to Jacksonville Jumbo Shrimp. |
| Jun 26 | Christian Bethancourt | Outrighted | Miami Marlins sent C Christian Bethancourt outright to Jacksonville Jumbo Shrimp. |
| Jun 26 | Valente Bellozo | Selected | Miami Marlins selected the contract of RHP Valente Bellozo from Jacksonville Jumbo Shrimp. |
| Jun 26 | Kent Emanuel | Designated for Assignment | Miami Marlins designated LHP Kent Emanuel for assignment. |
| Jun 25 | Victor Rodriguez | Signed as Free Agent | Miami Marlins signed free agent RHP Victor Rodriguez to a minor league contract. |
| Jun 25 | Austin Kitchen | Optioned | Miami Marlins optioned LHP Austin Kitchen to Jacksonville Jumbo Shrimp. |
| Jun 25 | Austin Kitchen | Claimed Off Waivers | Miami Marlins claimed LHP Austin Kitchen off waivers from Colorado Rockies. |
| Jun 25 | Sixto Sánchez | Status Change | Miami Marlins transferred RHP Sixto Sánchez from the 15-day injured list to the 60-day injured list. Right shoulder inflammation. |
| Jun 23 | Braxton Garrett | Status Change | Miami Marlins placed LHP Braxton Garrett on the 15-day injured list retroactive to June 20, 2024. Left forearm flexor strain. |
| Jun 23 | Kent Emanuel | Selected | Miami Marlins selected the contract of LHP Kent Emanuel from Jacksonville Jumbo Shrimp. |
| Jun 23 | Kyle Tyler | Selected | Miami Marlins selected the contract of RHP Kyle Tyler from Jacksonville Jumbo Shrimp. |
| Jun 23 | Shaun Anderson | Optioned | Miami Marlins optioned RHP Shaun Anderson to Jacksonville Jumbo Shrimp. |
| Jun 22 | Jesús Luzardo | Status Change | Miami Marlins placed LHP Jesús Luzardo on the 15-day injured list retroactive to June 19, 2024. Lumbar stress reaction. |
| Jun 22 | Shaun Anderson | Recalled | Miami Marlins recalled RHP Shaun Anderson from Jacksonville Jumbo Shrimp. |
| Jun 21 | Kent Emanuel | Outrighted | Miami Marlins sent LHP Kent Emanuel outright to Jacksonville Jumbo Shrimp. |
| Jun 21 | Christian Bethancourt | Designated for Assignment | Miami Marlins designated C Christian Bethancourt for assignment. |
| Jun 21 | Ali Sánchez | Selected | Miami Marlins selected the contract of C Ali Sánchez from Jacksonville Jumbo Shrimp. |
| Jun 20 | Burch Smith | Released | Miami Marlins released RHP Burch Smith. |
| Jun 19 | Jesús Luzardo | Status Change | Miami Marlins transferred LHP Jesús Luzardo from the 15-day injured list to the 60-day injured list. |
| Jun 19 | Ali Sánchez | Trade | Chicago Cubs traded C Ali Sánchez to Miami Marlins for cash. |
| Jun 19 | Edward Cabrera | Assigned | Miami Marlins sent RHP Edward Cabrera on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Jun 19 | Kent Emanuel | Designated for Assignment | Miami Marlins designated LHP Kent Emanuel for assignment. |
| Jun 19 | Yonny Chirinos | Selected | Miami Marlins selected the contract of RHP Yonny Chirinos from Jacksonville Jumbo Shrimp. |
| Jun 18 | Bryan Hoeing | Assigned | Miami Marlins sent RHP Bryan Hoeing on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Jun 15 | Kent Emanuel | Selected | Miami Marlins selected the contract of LHP Kent Emanuel from Jacksonville Jumbo Shrimp. |
| Jun 15 | Shaun Anderson | Optioned | Miami Marlins optioned RHP Shaun Anderson to Jacksonville Jumbo Shrimp. |
| Jun 14 | Bryan Hoeing | Assigned | Miami Marlins sent RHP Bryan Hoeing on a rehab assignment to Jupiter Hammerheads. |
| Jun 14 | Bryan Hoeing | Assigned | Miami Marlins sent RHP Bryan Hoeing on a rehab assignment to Jupiter Hammerheads. |
| Jun 14 | Shaun Anderson | Recalled | Miami Marlins recalled RHP Shaun Anderson from Jacksonville Jumbo Shrimp. |
| Jun 14 | Burch Smith | Designated for Assignment | Miami Marlins designated RHP Burch Smith for assignment. |
| Jun 12 | JT Chargois | Status Change | Miami Marlins activated RHP JT Chargois from the 60-day injured list. |
| Jun 12 | Emmanuel Ramirez | Optioned | Miami Marlins optioned RHP Emmanuel Ramirez to Jacksonville Jumbo Shrimp. |
| Jun 10 | Otto Lopez | Status Change | Miami Marlins activated SS Otto Lopez from the paternity list. |
| Jun 10 | Tim Anderson | Status Change | Miami Marlins activated SS Tim Anderson from the bereavement list. |
| Jun 10 | Tristan Gray | Optioned | Miami Marlins optioned SS Tristan Gray to Jacksonville Jumbo Shrimp. |
| Jun 10 | Xavier Edwards | Optioned | Miami Marlins optioned SS Xavier Edwards to Jacksonville Jumbo Shrimp. |
| Jun 9 | Avisaíl García | Released | Miami Marlins released RF Avisaíl García. |
| Jun 8 | Ryan Weathers | Status Change | Miami Marlins placed LHP Ryan Weathers on the 15-day injured list. Left index finger strain. |
| Jun 8 | Roddery Muñoz | Recalled | Miami Marlins recalled RHP Roddery Muñoz from Jacksonville Jumbo Shrimp. |
| Jun 7 | Xavier Edwards | Recalled | Miami Marlins recalled SS Xavier Edwards from Jacksonville Jumbo Shrimp. |
| Jun 7 | Otto Lopez | Status Change | Miami Marlins placed SS Otto Lopez on the paternity list. |
| Jun 7 | Tim Anderson | Status Change | Miami Marlins placed SS Tim Anderson on the bereavement list. |
| Jun 7 | Tristan Gray | Recalled | Miami Marlins recalled SS Tristan Gray from Jacksonville Jumbo Shrimp. |
| Jun 4 | Woo-Suk Go | Outrighted | Miami Marlins sent RHP Woo-Suk Go outright to Jacksonville Jumbo Shrimp. |
| Jun 4 | Avisaíl García | Designated for Assignment | Miami Marlins designated RF Avisaíl García for assignment. |
| Jun 4 | Jhonny Pereda | Optioned | Miami Marlins optioned C Jhonny Pereda to Jacksonville Jumbo Shrimp. |
| Jun 4 | Christian Bethancourt | Status Change | Miami Marlins activated C Christian Bethancourt from the bereavement list. |
| Jun 2 | Emmanuel Ramirez | Recalled | Miami Marlins recalled RHP Emmanuel Ramirez from Jacksonville Jumbo Shrimp. |
| Jun 2 | Sixto Sánchez | Status Change | Miami Marlins placed RHP Sixto Sánchez on the 15-day injured list retroactive to June 1, 2024. Right shoulder inflammation. |
| Jun 1 | Jhonny Pereda | Recalled | Miami Marlins recalled C Jhonny Pereda from Jacksonville Jumbo Shrimp. |
| Jun 1 | Christian Bethancourt | Status Change | Miami Marlins placed C Christian Bethancourt on the bereavement list. |
| May 31 | Huascar Brazobán | Status Change | Miami Marlins activated RHP Huascar Brazoban. |
| May 31 | Eli Villalobos | Outrighted | Miami Marlins sent RHP Eli Villalobos outright to Jacksonville Jumbo Shrimp. |
| May 31 | Huascar Brazobán | Recalled | Miami Marlins recalled RHP Huascar Brazoban from Jacksonville Jumbo Shrimp. |
| May 31 | Emmanuel Ramirez | Optioned | Miami Marlins optioned RHP Emmanuel Ramirez to Jacksonville Jumbo Shrimp. |
| May 30 | Emmanuel Ramirez | Optioned | Miami Marlins optioned RHP Emmanuel Ramirez to Jacksonville Jumbo Shrimp. |
| May 30 | Shaun Anderson | Optioned | Miami Marlins optioned RHP Shaun Anderson to Jacksonville Jumbo Shrimp. |
| May 30 | Shaun Anderson | Trade | Texas Rangers traded RHP Shaun Anderson to Miami Marlins for cash. |
| May 30 | Woo-Suk Go | Designated for Assignment | Miami Marlins designated RHP Woo-Suk Go for assignment. |
| May 28 | Avisaíl García | Assigned | Miami Marlins sent RF Avisaíl García on a rehab assignment to Jacksonville Jumbo Shrimp. |
| May 28 | Avisaíl García | Assigned | Miami Marlins sent RF Avisaíl García on a rehab assignment to Jacksonville Jumbo Shrimp. |
| May 27 | Eli Villalobos | Designated for Assignment | Miami Marlins designated RHP Eli Villalobos for assignment. |
| May 27 | Xavier Edwards | Optioned | Miami Marlins optioned SS Xavier Edwards to Jacksonville Jumbo Shrimp. |
| May 23 | Luis Leon | Signed as Free Agent | Miami Marlins signed free agent SS Luis Leon to a minor league contract. |
| May 21 | Bryan Hoeing | Assigned | Miami Marlins sent RHP Bryan Hoeing on a rehab assignment to Jacksonville Jumbo Shrimp. |
| May 21 | Albert Ortiz | Signed as Free Agent | Miami Marlins signed free agent RHP Albert Ortiz to a minor league contract. |
| May 21 | Diwarys Encarnacion | Signed as Free Agent | Miami Marlins signed free agent IF Diwarys Encarnacion to a minor league contract. |
| May 21 | Melvin Cuevas | Signed as Free Agent | Miami Marlins signed free agent RHP Melvin Cuevas to a minor league contract. |
| May 21 | Bryan Hoeing | Assigned | Miami Marlins sent RHP Bryan Hoeing on a rehab assignment to Jacksonville Jumbo Shrimp. |
| May 21 | Bryan Hoeing | Assigned | Miami Marlins sent RHP Bryan Hoeing on a rehab assignment to Jacksonville Jumbo Shrimp. |
| May 21 | JT Chargois | Assigned | Miami Marlins sent RHP JT Chargois on a rehab assignment to Jacksonville Jumbo Shrimp. |
| May 21 | Tristan Gray | Optioned | Miami Marlins optioned SS Tristan Gray to Jacksonville Jumbo Shrimp. |
| May 21 | Tim Anderson | Status Change | Miami Marlins activated SS Tim Anderson from the 10-day injured list. |
| May 19 | Anthony Maldonado | Optioned | Miami Marlins optioned RHP Anthony Maldonado to Jacksonville Jumbo Shrimp. |
| May 19 | Emmanuel Ramirez | Recalled | Miami Marlins recalled RHP Emmanuel Ramirez from Jacksonville Jumbo Shrimp. |
| May 18 | Luis De La Cruz | Signed as Free Agent | Miami Marlins signed free agent RHP Luis De La Cruz to a minor league contract. |
| May 18 | Xavier Edwards | Assigned | Miami Marlins sent SS Xavier Edwards on a rehab assignment to Jacksonville Jumbo Shrimp. |
| May 18 | Tim Anderson | Assigned | Miami Marlins sent SS Tim Anderson on a rehab assignment to Jacksonville Jumbo Shrimp. |
| May 17 | Raisei Nakamura | Signed as Free Agent | Miami Marlins signed free agent RHP Raisei Nakamura to a minor league contract. |
| May 13 | Tim Anderson | Status Change | Miami Marlins placed SS Tim Anderson on the 10-day injured list retroactive to May 11, 2024. Lower back tightness. |
| May 13 | A.J. Puk | Status Change | Miami Marlins activated LHP A.J. Puk from the 15-day injured list. |
| May 12 | JT Chargois | Status Change | Miami Marlins placed RHP JT Chargois on the 60-day injured list. Neck spasms. |
| May 12 | George Soriano | Optioned | Miami Marlins optioned RHP George Soriano to Jacksonville Jumbo Shrimp. |
| May 12 | Tristan Gray | Selected | Miami Marlins selected the contract of SS Tristan Gray from Jacksonville Jumbo Shrimp. |
| May 11 | Eli Villalobos | Optioned | Miami Marlins optioned RHP Eli Villalobos to Jacksonville Jumbo Shrimp. |
| May 11 | Jesús Luzardo | Status Change | Miami Marlins activated LHP Jesús Luzardo from the 15-day injured list. |
| May 10 | A.J. Puk | Assigned | Miami Marlins sent LHP A.J. Puk on a rehab assignment to Jacksonville Jumbo Shrimp. |
| May 10 | A.J. Puk | Assigned | Miami Marlins sent LHP A.J. Puk on a rehab assignment to Jacksonville Jumbo Shrimp. |
| May 9 | — | Trade | Miami Marlins traded RHP Darren McCaughan to Cleveland Guardians for cash. |
| May 8 | Edward Cabrera | Status Change | Miami Marlins placed RHP Edward Cabrera on the 60-day injured list. |
| May 8 | Braxton Garrett | Status Change | Miami Marlins activated LHP Braxton Garrett from the 15-day injured list. |
| May 8 | Edward Cabrera | Status Change | Miami Marlins placed RHP Edward Cabrera on the 15-day injured list. Right shoulder impingement. |
| May 8 | Jake Burger | Status Change | Miami Marlins activated 3B Jake Burger. |
| May 7 | Xavier Edwards | Status Change | Miami Marlins activated SS Xavier Edwards from the 10-day injured list. |
| May 7 | George Soriano | Recalled | Miami Marlins recalled RHP George Soriano from Jacksonville Jumbo Shrimp. |
| May 7 | Roddery Muñoz | Optioned | Miami Marlins optioned RHP Roddery Muñoz to Jacksonville Jumbo Shrimp. |
| May 7 | Xavier Edwards | Status Change | Miami Marlins transferred SS Xavier Edwards from the 10-day injured list to the 60-day injured list. Left foot infection. |
| May 7 | A.J. Puk | Assigned | Miami Marlins sent LHP A.J. Puk on a rehab assignment to Jupiter Hammerheads. |
| May 6 | Jonah Bride | Optioned | Miami Marlins optioned 3B Jonah Bride to Jacksonville Jumbo Shrimp. |
| May 6 | Jake Burger | Status Change | Miami Marlins activated 3B Jake Burger from the 10-day injured list. |
| May 6 | A.J. Puk | Assigned | Miami Marlins sent LHP A.J. Puk on a rehab assignment to FCL Marlins. |
| May 6 | Braxton Garrett | Assigned | Miami Marlins sent LHP Braxton Garrett on a rehab assignment to FCL Marlins. |
| May 5 | Eli Villalobos | Selected | Miami Marlins selected the contract of RHP Eli Villalobos from Jacksonville Jumbo Shrimp. |
| May 5 | Darren McCaughan | Designated for Assignment | Miami Marlins designated RHP Darren McCaughan for assignment. |
| May 5 | Jesús Luzardo | Assigned | Miami Marlins sent LHP Jesús Luzardo on a rehab assignment to Jupiter Hammerheads. |
| May 4 | Jonah Bride | Recalled | Miami Marlins recalled 3B Jonah Bride from Jacksonville Jumbo Shrimp. |
| May 4 | Jakob Marsee | Status Change | OF Jakob Marsee roster status changed by Miami Marlins. |
| May 4 | Woo-Suk Go | Trade | Miami Marlins traded 2B Luis Arraez to San Diego Padres for OF Dillon Head, OF Jakob Marsee, RHP Woo-Suk Go and 1B Nathan Martorella. |
| May 3 | A.J. Puk | Assigned | Miami Marlins sent LHP A.J. Puk on a rehab assignment to Jupiter Hammerheads. |
| May 3 | Bryan Hoeing | Status Change | Miami Marlins placed RHP Bryan Hoeing on the 15-day injured list retroactive to May 2, 2024. Left hamstring strain. |
| May 3 | Darren McCaughan | Recalled | Miami Marlins recalled RHP Darren McCaughan from Jacksonville Jumbo Shrimp. |
| May 3 | A.J. Puk | Assigned | Miami Marlins sent LHP A.J. Puk on a rehab assignment to Jupiter Hammerheads. |
| May 1 | Angel Rosario | Signed as Free Agent | Miami Marlins signed free agent LHP Angel Rosario to a minor league contract. |
| May 1 | Wilfredo Henriquez | Signed as Free Agent | Miami Marlins signed free agent RHP Wilfredo Henriquez to a minor league contract. |
| May 1 | Jake Burger | Assigned | Miami Marlins sent 3B Jake Burger on a rehab assignment to Jacksonville Jumbo Shrimp. |
| May 1 | Emmanuel Ramirez | Optioned | Miami Marlins optioned RHP Emmanuel Ramirez to Jacksonville Jumbo Shrimp. |
| May 1 | Roddery Muñoz | Recalled | Miami Marlins recalled RHP Roddery Muñoz from Jacksonville Jumbo Shrimp. |
| Apr 30 | Ian Medina | Signed as Free Agent | Miami Marlins signed free agent LHP Ian Medina to a minor league contract. |
| Apr 30 | Kent Emanuel | Outrighted | Miami Marlins sent LHP Kent Emanuel outright to Jacksonville Jumbo Shrimp. |
| Apr 29 | Kyle Tyler | Outrighted | Miami Marlins sent RHP Kyle Tyler outright to Jacksonville Jumbo Shrimp. |
| Apr 28 | Kent Emanuel | Designated for Assignment | Miami Marlins designated LHP Kent Emanuel for assignment. |
| Apr 28 | Avisaíl García | Status Change | Miami Marlins placed RF Avisaíl García on the 10-day injured list. Left hamstring strain. |
| Apr 28 | Emmanuel Ramirez | Selected | Miami Marlins selected the contract of RHP Emmanuel Ramirez from Jacksonville Jumbo Shrimp. |
| Apr 28 | Dane Myers | Recalled | Miami Marlins recalled OF Dane Myers from Jacksonville Jumbo Shrimp. |
| Apr 27 | Kent Emanuel | Status Change | Miami Marlins activated LHP Kent Emanuel. |
| Apr 27 | Kyle Tyler | Designated for Assignment | Miami Marlins designated RHP Kyle Tyler for assignment. |
| Apr 27 | Kent Emanuel | Selected | Miami Marlins selected the contract of LHP Kent Emanuel from Jacksonville Jumbo Shrimp. |
| Apr 26 | Huascar Brazobán | Status Change | Miami Marlins reassigned RHP Huascar Brazoban to the minor leagues. |
| Apr 26 | Huascar Brazobán | Status Change | RHP Huascar Brazoban roster status changed by Miami Marlins. |
| Apr 26 | Jesús Luzardo | Status Change | Miami Marlins placed LHP Jesús Luzardo on the 15-day injured list retroactive to April 23, 2024. Left elbow tightness. |
| Apr 26 | Anthony Maldonado | Recalled | Miami Marlins recalled RHP Anthony Maldonado from Jacksonville Jumbo Shrimp. |
| Apr 25 | Huascar Brazobán | Status Change | Miami Marlins activated RHP Huascar Brazoban from the restricted list. |
| Apr 24 | Christian Bethancourt | Status Change | Miami Marlins activated C Christian Bethancourt from the 10-day injured list. |
| Apr 24 | Jhonny Pereda | Optioned | Miami Marlins optioned C Jhonny Pereda to Jacksonville Jumbo Shrimp. |
| Apr 21 | JT Chargois | Assigned | Miami Marlins sent RHP JT Chargois on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Apr 21 | Kyle Tyler | Designated for Assignment | Miami Marlins designated RHP Kyle Tyler for assignment. |
| Apr 21 | JT Chargois | Assigned | Miami Marlins sent RHP JT Chargois on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Apr 21 | Roddery Muñoz | Optioned | Miami Marlins optioned RHP Roddery Muñoz to Jacksonville Jumbo Shrimp. |
| Apr 20 | Josh Simpson | Status Change | Miami Marlins placed LHP Josh Simpson on the 60-day injured list. Left elbow ulnar neuritis. |
| Apr 20 | Kyle Tyler | Selected | Miami Marlins selected the contract of RHP Kyle Tyler from Jacksonville Jumbo Shrimp. |
| Apr 20 | A.J. Puk | Status Change | Miami Marlins placed LHP A.J. Puk on the 15-day injured list. Left shoulder fatigue. |
| Apr 20 | Roddery Muñoz | Recalled | Miami Marlins recalled RHP Roddery Muñoz from Jacksonville Jumbo Shrimp. |
| Apr 19 | Christian Bethancourt | Assigned | Miami Marlins sent C Christian Bethancourt on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Apr 17 | Declan Cronin | Recalled | Miami Marlins recalled RHP Declan Cronin from Jacksonville Jumbo Shrimp. |
| Apr 17 | George Soriano | Optioned | Miami Marlins optioned RHP George Soriano to Jacksonville Jumbo Shrimp. |
| Apr 15 | Matt Andriese | Outrighted | Miami Marlins sent RHP Matt Andriese outright to Jacksonville Jumbo Shrimp. |
| Apr 15 | Christian Bethancourt | Status Change | Miami Marlins placed C Christian Bethancourt on the 10-day injured list retroactive to April 14, 2024. Viral illness. |
| Apr 15 | Jhonny Pereda | Selected | Miami Marlins selected the contract of C Jhonny Pereda from Jacksonville Jumbo Shrimp. |
| Apr 15 | Edward Cabrera | Status Change | Miami Marlins activated RHP Edward Cabrera from the 15-day injured list. |
| Apr 15 | Jake Burger | Status Change | Miami Marlins placed 3B Jake Burger on the 10-day injured list. Left intercostal muscle strain. |
| Apr 15 | Otto Lopez | Recalled | Miami Marlins recalled SS Otto Lopez from Jacksonville Jumbo Shrimp. |
| Apr 15 | Max Meyer | Optioned | Miami Marlins optioned RHP Max Meyer to Jacksonville Jumbo Shrimp. |
| Apr 14 | Max Meyer | Status Change | Miami Marlins reassigned RHP Max Meyer to the minor leagues. |
| Apr 13 | Calvin Faucher | Recalled | Miami Marlins recalled RHP Calvin Faucher from Jacksonville Jumbo Shrimp. |
| Apr 13 | Matt Andriese | Designated for Assignment | Miami Marlins designated RHP Matt Andriese for assignment. |
| Apr 7 | Braxton Garrett | Assigned | Miami Marlins sent LHP Braxton Garrett on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Apr 7 | Braxton Garrett | Assigned | Miami Marlins sent LHP Braxton Garrett on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Apr 6 | Valente Bellozo | Status Change | RHP Valente Bellozo roster status changed by Miami Marlins. |
| Apr 6 | — | Trade | Miami Marlins traded SS Jacob Amaya to Houston Astros for RHP Valente Bellozo and cash. |
| Apr 6 | Josh Simpson | Assigned | Miami Marlins sent LHP Josh Simpson on a rehab assignment to Jupiter Hammerheads. |
| Apr 6 | Kent Emanuel | Outrighted | Miami Marlins sent LHP Kent Emanuel outright to Jacksonville Jumbo Shrimp. |
| Apr 5 | Vladimir Gutierrez | Claimed Off Waivers | Milwaukee Brewers claimed RHP Vladimir Gutierrez off waivers from Miami Marlins. |
| Apr 4 | Otto Lopez | Optioned | Miami Marlins optioned SS Otto Lopez to Jacksonville Jumbo Shrimp. |
| Apr 4 | Otto Lopez | Claimed Off Waivers | Miami Marlins claimed SS Otto Lopez off waivers from San Francisco Giants. |
| Apr 4 | Eury Pérez | Status Change | Miami Marlins transferred RHP Eury Pérez from the 15-day injured list to the 60-day injured list. Right elbow inflammation. |
| Apr 4 | Matt Andriese | Selected | Miami Marlins selected the contract of RHP Matt Andriese from Jacksonville Jumbo Shrimp. |
| Apr 4 | Emmanuel Rivera | Recalled | Miami Marlins recalled 3B Emmanuel Rivera from Jacksonville Jumbo Shrimp. |
| Apr 4 | Jonah Bride | Optioned | Miami Marlins optioned 3B Jonah Bride to Jacksonville Jumbo Shrimp. |
| Apr 4 | Kent Emanuel | Designated for Assignment | Miami Marlins designated LHP Kent Emanuel for assignment. |
| Apr 2 | — | Trade | Arizona Diamondbacks traded 3B Emmanuel Rivera to Miami Marlins for cash. |
| Apr 1 | Vladimir Gutierrez | Designated for Assignment | Miami Marlins designated RHP Vladimir Gutierrez for assignment. |
| Apr 1 | Kent Emanuel | Selected | Miami Marlins selected the contract of LHP Kent Emanuel from Jacksonville Jumbo Shrimp. |
| Mar 31 | Vladimir Gutierrez | Selected | Miami Marlins selected the contract of RHP Vladimir Gutierrez from Jacksonville Jumbo Shrimp. |
| Mar 31 | Declan Cronin | Optioned | Miami Marlins optioned RHP Declan Cronin to Jacksonville Jumbo Shrimp. |
| Mar 31 | Edward Cabrera | Assigned | Miami Marlins sent RHP Edward Cabrera on a rehab assignment to Jacksonville Jumbo Shrimp. |
| Mar 28 | Max Meyer | Status Change | Miami Marlins activated RHP Max Meyer. |
| Mar 28 | Xavier Edwards | Status Change | Miami Marlins placed SS Xavier Edwards on the 10-day injured list retroactive to March 25, 2024. Left foot infection. |
| Mar 28 | Josh Simpson | Status Change | Miami Marlins placed LHP Josh Simpson on the 15-day injured list retroactive to March 25, 2024. Left elbow ulnar neuritis. |
| Mar 28 | Eury Pérez | Status Change | Miami Marlins placed RHP Eury Pérez on the 15-day injured list retroactive to March 25, 2024. Right elbow inflammation. |
| Mar 28 | Braxton Garrett | Status Change | Miami Marlins placed LHP Braxton Garrett on the 15-day injured list retroactive to March 25, 2024. Left shoulder impingement. |
| Mar 28 | JT Chargois | Status Change | Miami Marlins placed RHP JT Chargois on the 15-day injured list retroactive to March 25, 2024. Neck spasms. |
| Mar 28 | Edward Cabrera | Status Change | Miami Marlins placed RHP Edward Cabrera on the 15-day injured list retroactive to March 25, 2024. Right shoulder impingement. |
| Mar 28 | Jonah Bride | Recalled | Miami Marlins recalled 3B Jonah Bride from Jacksonville Jumbo Shrimp. |
| Mar 28 | Max Meyer | Recalled | Miami Marlins recalled RHP Max Meyer from Jacksonville Jumbo Shrimp. |
| Mar 27 | Calvin Faucher | Optioned | Miami Marlins optioned RHP Calvin Faucher to Jacksonville Jumbo Shrimp. |
| Mar 27 | Anthony Maldonado | Optioned | Miami Marlins optioned RHP Anthony Maldonado to Jacksonville Jumbo Shrimp. |
| Mar 27 | Shane Sasaki | Trade | Tampa Bay Rays traded CF Shane Sasaki to Miami Marlins. |
| Mar 27 | John Cruz | Trade | Miami Marlins traded 2B Jon Berti to New York Yankees for CF John Cruz. |
| Mar 27 | — | Trade | Tampa Bay Rays traded RHP Burch Smith to Miami Marlins for cash. |
| Mar 26 | Huascar Brazobán | Status Change | Miami Marlins placed RHP Huascar Brazoban on the restricted list. |
| Mar 25 | Edward Cabrera | Status Change | Miami Marlins placed RHP Edward Cabrera on the 15-day injured list. Right shoulder impingement. |
| Mar 24 | Tanner Allen | Assigned | OF Tanner Allen assigned to Miami Marlins. |
| Mar 24 | Zach Zubia | Assigned | 1B Zach Zubia assigned to Miami Marlins. |
| Mar 24 | Edgar Sanchez | Assigned | RHP Edgar Sanchez assigned to Miami Marlins. |
| Mar 23 | Sean Roby | Assigned | 3B Sean Roby assigned to Miami Marlins. |
| Mar 22 | Dane Myers | Optioned | Miami Marlins optioned OF Dane Myers to Jacksonville Jumbo Shrimp. |
| Mar 22 | Sixto Sánchez | Status Change | Miami Marlins activated RHP Sixto Sánchez. |
| Mar 20 | Carmine Lane | Assigned | C Carmine Lane assigned to Miami Marlins. |
| Mar 20 | Kyler Castillo | Assigned | RF Kyler Castillo assigned to Miami Marlins. |
| Mar 20 | Euri Montero | Status Change | RHP Euri Montero roster status changed by Miami Marlins. |
| Mar 19 | Hudson Livesey | Assigned | C Hudson Livesey assigned to Miami Marlins. |
| Mar 19 | Renny Hidalgo | Assigned | CF Renny Hidalgo assigned to Miami Marlins. |
| Mar 18 | Nic Ready | Status Change | 3B Nic Ready roster status changed by Miami Marlins. |
| Mar 18 | Nic Ready | Assigned | 3B Nic Ready assigned to Miami Marlins. |
| Mar 18 | Sam Praytor | Assigned | C Sam Praytor assigned to Miami Marlins. |
| Mar 17 | Junior Sanchez | Assigned | SS Junior Sanchez assigned to Miami Marlins. |
| Mar 17 | Torin Montgomery | Assigned | 1B Torin Montgomery assigned to Miami Marlins. |
| Mar 17 | Fabian Lopez | Assigned | SS Fabian Lopez assigned to Miami Marlins. |
| Mar 17 | Angelo DiSpigna | Assigned | 1B Angelo DiSpigna assigned to Miami Marlins. |
| Mar 17 | Andres Valor | Assigned | OF Andres Valor assigned to Miami Marlins. |
| Mar 13 | Luis Palacios | Assigned | LHP Luis Palacios assigned to Miami Marlins. |
| Mar 12 | Max Meyer | Optioned | Miami Marlins optioned RHP Max Meyer to Jacksonville Jumbo Shrimp. |
| Mar 12 | Josh Zamora | Assigned | 3B Josh Zamora assigned to Miami Marlins. |
| Mar 12 | Carlos Santiago | Assigned | SS Carlos Santiago assigned to Miami Marlins. |
| Mar 11 | Jacob Amaya | Designated for Assignment | Miami Marlins designated SS Jacob Amaya for assignment. |
| Mar 11 | Victor Mesa Jr. | Status Change | Miami Marlins reassigned OF Victor Mesa Jr. to the minor leagues. |
| Mar 11 | Roddery Muñoz | Optioned | Miami Marlins optioned RHP Roddery Muñoz to Jacksonville Jumbo Shrimp. |
| Mar 11 | Victor Mesa Jr. | Optioned | Miami Marlins optioned OF Victor Mesa Jr. to Jacksonville Jumbo Shrimp. |
| Mar 11 | Jonah Bride | Optioned | Miami Marlins optioned 3B Jonah Bride to Jacksonville Jumbo Shrimp. |
| Mar 11 | Jacob Amaya | Optioned | Miami Marlins optioned SS Jacob Amaya to Jacksonville Jumbo Shrimp. |
| Mar 11 | Joe Mack | Assigned | C Joe Mack assigned to Miami Marlins. |
| Mar 11 | Dalvy Rosario | Assigned | OF Dalvy Rosario assigned to Miami Marlins. |
| Mar 11 | Jorge Caballero | Assigned | OF Jorge Caballero assigned to Miami Marlins. |
| Mar 11 | Josan Méndez | Assigned | RHP Josan Méndez assigned to Miami Marlins. |
| Mar 10 | Jan Mercado | Status Change | C Jan Mercado roster status changed by Miami Marlins. |
| Mar 10 | Mychal Givens | Signed as Free Agent | Miami Marlins signed free agent RHP Mychal Givens to a minor league contract. |
| Mar 10 | Jan Mercado | Assigned | C Jan Mercado assigned to Miami Marlins. |
| Mar 10 | Chase Luttrell | Assigned | OF Chase Luttrell assigned to Miami Marlins. |
| Mar 10 | Cristhian Rodriguez | Assigned | SS Cristhian Rodriguez assigned to Miami Marlins. |
| Mar 10 | Andrew Fernandez | Assigned | C Andrew Fernandez assigned to Miami Marlins. |
| Mar 10 | Jake DeLeo | Assigned | OF Jake DeLeo assigned to Miami Marlins. |
| Mar 10 | Jonathan Guzmán | Assigned | SS Jonathan Guzman assigned to Miami Marlins. |
| Mar 5 | Darren McCaughan | Optioned | Miami Marlins optioned RHP Darren McCaughan to Jacksonville Jumbo Shrimp. |
| Mar 3 | Yiddi Cappe | Status Change | SS Yiddi Cappe roster status changed by Miami Marlins. |
| Mar 3 | Breidy Encarnación | Status Change | RHP Breidy Encarnación roster status changed by Miami Marlins. |
| Mar 3 | Brett Roberts | Assigned | SS Brett Roberts assigned to Miami Marlins. |
| Mar 3 | Johnny Olmstead | Assigned | 3B Johnny Olmstead assigned to Miami Marlins. |
| Mar 3 | Breidy Encarnación | Assigned | RHP Breidy Encarnación assigned to Miami Marlins. |
| Mar 3 | Osiris Johnson | Assigned | SS Osiris Johnson assigned to Miami Marlins. |
| Mar 3 | Cameron Barstad | Assigned | C Cameron Barstad assigned to Miami Marlins. |
| Mar 3 | Jake Thompson | Assigned | 3B Jake Thompson assigned to Miami Marlins. |
| Mar 3 | JT Mabry | Assigned | 2B JT Mabry assigned to Miami Marlins. |
| Mar 3 | Yiddi Cappe | Assigned | SS Yiddi Cappe assigned to Miami Marlins. |
| Mar 3 | Evan Taylor | Assigned | LHP Evan Taylor assigned to Miami Marlins. |
| Mar 2 | Jordan McCants | Assigned | SS Jordan McCants assigned to Miami Marlins. |
| Mar 1 | Kemp Alderman | Assigned | OF Kemp Alderman assigned to Miami Marlins. |
| Mar 1 | Jesus Hernandez | Assigned | SS Jesus Hernandez assigned to Miami Marlins. |
| Feb 29 | Kyle Crigger | Assigned | RHP Kyle Crigger assigned to Miami Marlins. |
| Feb 28 | Cody Morissette | Status Change | SS Cody Morissette roster status changed by Miami Marlins. |
| Feb 28 | Cody Morissette | Status Change | SS Cody Morissette roster status changed by Miami Marlins. |
| Feb 28 | Emmanuel Ramirez | Status Change | RHP Emmanuel Ramirez roster status changed by Miami Marlins. |
| Feb 28 | Emmanuel Ramirez | Status Change | RHP Emmanuel Ramirez roster status changed by Miami Marlins. |
| Feb 28 | Emmanuel Ramirez | Assigned | RHP Emmanuel Ramirez assigned to Miami Marlins. |
| Feb 28 | Lincoln Henzman | Assigned | RHP Lincoln Henzman assigned to Miami Marlins. |
| Feb 28 | Cody Morissette | Assigned | SS Cody Morissette assigned to Miami Marlins. |
| Feb 27 | Mark Coley II | Status Change | OF Mark Coley II roster status changed by Miami Marlins. |
| Feb 27 | Raffi Vizcaíno | Signed as Free Agent | Miami Marlins signed free agent RHP Raffi Vizcaíno to a minor league contract. |
| Feb 27 | Brock Vradenburg | Assigned | 1B Brock Vradenburg assigned to Miami Marlins. |
| Feb 27 | Mark Coley II | Assigned | OF Mark Coley II assigned to Miami Marlins. |
| Feb 26 | Curt Casali | Status Change | C Curt Casali roster status changed by Miami Marlins. |
| Feb 26 | Colby Shade | Status Change | OF Colby Shade roster status changed by Miami Marlins. |
| Feb 26 | Colby Shade | Assigned | OF Colby Shade assigned to Miami Marlins. |
| Feb 26 | Ignacio Feliz | Assigned | RHP Ignacio Feliz assigned to Miami Marlins. |
| Feb 26 | Curt Casali | Status Change | C Curt Casali roster status changed by Miami Marlins. |
| Feb 26 | Curt Casali | Signed as Free Agent | Miami Marlins signed free agent C Curt Casali to a minor league contract and invited him to spring training. |
| Feb 25 | Diego Infante | Status Change | OF Diego Infante roster status changed by Miami Marlins. |
| Feb 25 | Zach McCambley | Assigned | RHP Zach McCambley assigned to Miami Marlins. |
| Feb 25 | Diego Infante | Assigned | OF Diego Infante assigned to Miami Marlins. |
| Feb 24 | Harrison Spohn | Status Change | SS Harrison Spohn roster status changed by Miami Marlins. |
| Feb 24 | Austin Roberts | Status Change | RHP Austin Roberts roster status changed by Miami Marlins. |
| Feb 24 | Jesús Sánchez | Number Change | CF Jesús Sánchez changed number to 12. |
| Feb 24 | Sandy Alcantara | Status Change | Miami Marlins placed RHP Sandy Alcantara on the 60-day injured list. Right forearm flexor strain. |
| Feb 24 | Tim Anderson | Signed as Free Agent | Miami Marlins signed free agent SS Tim Anderson. |
| Feb 24 | Harrison Spohn | Assigned | SS Harrison Spohn assigned to Miami Marlins. |
| Feb 24 | Eli Villalobos | Assigned | RHP Eli Villalobos assigned to Miami Marlins. |
| Feb 24 | Austin Roberts | Assigned | RHP Austin Roberts assigned to Miami Marlins. |
| Feb 24 | Matt Pushard | Assigned | RHP Matt Pushard assigned to Miami Marlins. |
| Feb 24 | Anderson Pilar | Assigned | RHP Anderson Pilar assigned to Miami Marlins. |
| Feb 24 | Chandler Jozwiak | Assigned | LHP Chandler Jozwiak assigned to Miami Marlins. |
| Feb 22 | Vladimir Gutierrez | Status Change | RHP Vladimir Gutierrez roster status changed by Miami Marlins. |
| Feb 22 | Vladimir Gutierrez | Signed as Free Agent | Miami Marlins signed free agent RHP Vladimir Gutierrez to a minor league contract. |
| Feb 22 | Lincoln Henzman | Signed as Free Agent | Miami Marlins signed free agent RHP Lincoln Henzman to a minor league contract. |
| Feb 14 | — | Trade | Miami Marlins traded CF Peyton Burdick to Baltimore Orioles for cash. |
| Feb 13 | Kaleb Ort | Claimed Off Waivers | Philadelphia Phillies claimed RHP Kaleb Ort off waivers from Miami Marlins. |
| Feb 13 | Jordan Groshans | Claimed Off Waivers | New York Yankees claimed SS Jordan Groshans off waivers from Miami Marlins. |
| Feb 12 | Yonny Chirinos | Signed as Free Agent | Miami Marlins signed free agent RHP Yonny Chirinos to a minor league contract and invited him to spring training. |
| Feb 12 | Darren McCaughan | Trade | Seattle Mariners traded RHP Darren McCaughan to Miami Marlins. |
| Feb 11 | Nick Gordon | Trade | Minnesota Twins traded SS Nick Gordon to Miami Marlins for LHP Steven Okert. |
| Feb 9 | Peyton Burdick | Designated for Assignment | Miami Marlins designated CF Peyton Burdick for assignment. |
| Feb 7 | Kent Emanuel | Signed as Free Agent | Miami Marlins signed free agent LHP Kent Emanuel to a minor league contract and invited him to spring training. |
| Feb 7 | Declan Cronin | Status Change | Miami Marlins activated RHP Declan Cronin. |
| Feb 7 | Jonah Bride | Status Change | Miami Marlins activated 3B Jonah Bride. |
| Feb 7 | Kaleb Ort | Designated for Assignment | Miami Marlins designated RHP Kaleb Ort for assignment. |
| Feb 7 | Jonah Bride | Trade | Oakland Athletics traded 3B Jonah Bride to Miami Marlins for cash. |
| Feb 7 | Declan Cronin | Claimed Off Waivers | Miami Marlins claimed RHP Declan Cronin off waivers from Houston Astros. |
| Feb 5 | Marty Costes | Assigned | Miami Marlins invited non-roster OF Marty Costes to spring training. |
| Feb 5 | Griffin Conine | Assigned | Miami Marlins invited non-roster OF Griffin Conine to spring training. |
| Feb 5 | Javier Sanoja | Assigned | Miami Marlins invited non-roster SS Javier Sanoja to spring training. |
| Feb 5 | Troy Johnston | Assigned | Miami Marlins invited non-roster RF Troy Johnston to spring training. |
| Feb 5 | José Devers | Assigned | Miami Marlins invited non-roster SS José Devers to spring training. |
| Feb 5 | Jacob Berry | Status Change | 3B Jacob Berry roster status changed by Miami Marlins. |
| Feb 5 | Jacob Berry | Assigned | Miami Marlins invited non-roster 3B Jacob Berry to spring training. |
| Feb 5 | Jhonny Pereda | Assigned | Miami Marlins invited non-roster C Jhonny Pereda to spring training. |
| Feb 5 | Paul McIntosh | Assigned | Miami Marlins invited non-roster C Paul McIntosh to spring training. |
| Feb 5 | Bennett Hostetler | Assigned | Miami Marlins invited non-roster C Bennett Hostetler to spring training. |
| Feb 5 | Will Banfield | Assigned | Miami Marlins invited non-roster C Will Banfield to spring training. |
| Feb 5 | Patrick Monteverde | Assigned | Miami Marlins invited non-roster LHP Patrick Monteverde to spring training. |
| Feb 5 | Jeff Lindgren | Assigned | Miami Marlins invited non-roster RHP Jeff Lindgren to spring training. |
| Feb 5 | Luarbert Arias | Assigned | Miami Marlins invited non-roster RHP Luarbert Arias to spring training. |
| Feb 5 | Elvis Alvarado | Assigned | Miami Marlins invited non-roster OF Elvis Alvarado to spring training. |
| Jan 25 | Elvis Alvarado | Signed as Free Agent | Miami Marlins signed free agent OF Elvis Alvarado to a minor league contract. |
| Jan 22 | Trey Mancini | Status Change | LF Trey Mancini roster status changed by Miami Marlins. |
| Jan 22 | Trey Mancini | Status Change | LF Trey Mancini roster status changed by Miami Marlins. |
| Jan 22 | Trey Mancini | Signed as Free Agent | Miami Marlins signed free agent LF Trey Mancini to a minor league contract. |
| Jan 18 | Jonathan Guzmán | Signed as Free Agent | Miami Marlins signed free agent SS Jonathan Guzman to a minor league contract. |
| Jan 17 | Jhonny Pereda | Signed as Free Agent | Miami Marlins signed free agent C Jhonny Pereda to a minor league contract. |
| Jan 15 | Kevin Robledo | Signed as Free Agent | Miami Marlins signed free agent C Kevin Robledo to a minor league contract. |
| Jan 15 | Carlos Ochoa | Signed as Free Agent | Miami Marlins signed free agent RHP Carlos Ochoa to a minor league contract. |
| Jan 15 | Luis Cova | Signed as Free Agent | Miami Marlins signed free agent OF Luis Cova to a minor league contract. |
| Jan 15 | Jonfreider Torrealba | Signed as Free Agent | Miami Marlins signed free agent RHP Jonfreider Torrealba to a minor league contract. |
| Jan 15 | Maikel Rodriguez | Signed as Free Agent | Miami Marlins signed free agent RHP Maikel Rodriguez to a minor league contract. |
| Jan 15 | José Castro | Signed as Free Agent | Miami Marlins signed free agent OF Jose Castro to a minor league contract. |
| Jan 15 | Jose Paulino | Signed as Free Agent | Miami Marlins signed free agent RHP Jose Paulino to a minor league contract. |
| Jan 15 | Yordani Martinez | Signed as Free Agent | Miami Marlins signed free agent 2B Yordani Martinez to a minor league contract. |
| Jan 15 | Estarlin Francisco | Signed as Free Agent | Miami Marlins signed free agent RHP Estarlin Francisco to a minor league contract. |
| Jan 15 | Alejandro De La Cruz | Signed as Free Agent | Miami Marlins signed free agent RHP Alejandro De La Cruz to a minor league contract. |
| Jan 15 | Alex Cruz | Signed as Free Agent | Miami Marlins signed free agent OF Alex Cruz to a minor league contract. |
| Jan 15 | Gerinton Mendez | Signed as Free Agent | Miami Marlins signed free agent RHP Gerinton Mendez to a minor league contract. |
| Jan 15 | Kifraidy Encarnacion | Signed as Free Agent | Miami Marlins signed free agent LHP Kifraidy Encarnacion to a minor league contract. |
| Jan 15 | Almen Tolentino | Signed as Free Agent | Miami Marlins signed free agent C Almen Tolentino to a minor league contract. |
| Jan 15 | Angel Garcia | Signed as Free Agent | Miami Marlins signed free agent RHP Angel Garcia to a minor league contract. |
| Jan 15 | Gregori Arias | Signed as Free Agent | Miami Marlins signed free agent SS Gregori Arias to a minor league contract. |
| Jan 15 | Eric Gutierrez | Signed as Free Agent | Miami Marlins signed free agent LHP Eric Gutierrez to a minor league contract. |
| Jan 15 | Abraham Hernandez | Signed as Free Agent | Miami Marlins signed free agent LHP Abraham Hernandez to a minor league contract. |
| Jan 15 | Robert Puente | Signed as Free Agent | Miami Marlins signed free agent LHP Robert Puente to a minor league contract. |
| Jan 15 | Eiver Mosquera | Signed as Free Agent | Miami Marlins signed free agent RHP Eiver Mosquera to a minor league contract. |
| Jan 15 | Jonathan Rosario | Signed as Free Agent | Miami Marlins signed free agent LHP Jonathan Rosario to a minor league contract. |
| Jan 12 | Emmanuel Ramirez | Signed as Free Agent | Miami Marlins signed free agent RHP Emmanuel Ramirez to a minor league contract. |
| Jan 4 | Angel Macuare | Signed as Free Agent | Miami Marlins signed free agent RHP Angel Macuare to a minor league contract. |
| Jan 4 | Ryan Jensen | Claimed Off Waivers | Minnesota Twins claimed RHP Ryan Jensen off waivers from Miami Marlins. |
| Jan 2 | Jonathan Davis | Status Change | CF Jonathan Davis roster status changed by Miami Marlins. |
| Jan 2 | Jonathan Davis | Signed as Free Agent | Miami Marlins signed free agent CF Jonathan Davis to a minor league contract. |