The Marlins 40-man roster is currently at 34 players.
- Daniel Castano, Isan Díaz, Braxton Garrett, Monte Harrison, Jordan Holloway and Sixto Sánchez recalled from Jacksonville
- Eddy Alvarez, Andrew Bellatti, Preston Guilmet, Deven Marrero and Magneuris Sierra outrighted to Jacksonville
- Sandy León elected free agency
- Jesús Aguilar, Brian Anderson, Jon Berti, Garrett Cooper, José Devers and Cody Poteet activated from 60-day injured list
Pitchers (21): Sandy Alcantara, Anthony Bass, Anthony Bender, Richard Bleier, Edward Cabrera, Paul Campbell, Daniel Castano, Dylan Floro, Braxton Garrett, Sean Guenther, Elieser Hernandez, Jordan Holloway, Pablo López, Jesús Luzardo, Nick Neidert, Steven Okert, Zach Pop, Cody Poteet, Trevor Rogers, Sixto Sánchez, Zach Thompson
Position Players (19): Jesús Aguilar, Jorge Alfaro (10-day IL), Brian Anderson, Jon Berti, Lewis Brinson, Jazz Chisholm Jr.