Jupiter Hammerheads Roster & Staff
MIA Transactions
| Date | Transaction |
| 12/20/25 | FCL Marlins released OF Danny Gonzalez. |
| 12/16/25 | SS Jesús Bastidas assigned to Jacksonville Jumbo Shrimp. |
| 12/16/25 | 1B Brian Navarreto assigned to Jacksonville Jumbo Shrimp. |
| 12/15/25 | Miami Marlins signed free agent 1B Brian Navarreto to a minor league contract. |
| 12/15/25 | Miami Marlins signed free agent SS Jesús Bastidas to a minor league contract. |
| 12/11/25 | DSL Marlins released RHP Raisei Nakamura. |
| 12/10/25 | RHP Jake Smith assigned to Jacksonville Jumbo Shrimp. |
| 12/10/25 | RHP Livan Reinoso assigned to Jacksonville Jumbo Shrimp. |
| 12/05/25 | Miami Marlins optioned RHP Zach Brzykcy to Jacksonville Jumbo Shrimp. |