Mariners Roster & Staff
Transactions
| Date | Transaction |
| 03/03/26 | C Connor Dykstra assigned to Seattle Mariners. |
| 03/03/26 | C Mitch Garver assigned to Seattle Mariners. |
| 03/01/26 | OF Bill Knight assigned to Seattle Mariners. |
| 03/01/26 | Seattle Mariners signed free agent C Jacob Nottingham to a minor league contract. |