Mariners Roster & Staff
Transactions
| Date | Transaction |
| 02/03/25 | Seattle Mariners signed free agent 2B Jorge Polanco. |
| 02/03/25 | Seattle Mariners designated LF Cade Marlowe for assignment. |
| 02/03/25 | Seattle Mariners designated LHP Jhonathan Díaz for assignment. |
| 02/03/25 | Cincinnati Reds traded RHP Casey Legumina to Seattle Mariners for cash. |