Mariners Roster & Staff
Transactions
| Date | Transaction |
| 11/02/26 | Seattle Mariners activated SS Colt Emerson from the 60-day injured list. |
| 11/02/26 | Seattle Mariners activated RHP Logan Evans from the 60-day injured list. |
| 11/02/26 | Seattle Mariners activated 3B Will Wilson from the 60-day injured list. |
| 11/02/26 | Seattle Mariners activated CF Brennen Davis from the 60-day injured list. |
| 11/02/26 | Seattle Mariners activated RF Luke Raley from the 60-day injured list. |
| 11/02/26 | Seattle Mariners activated RHP Nick Davila from the 60-day injured list. |
| 11/02/26 | Seattle Mariners activated RHP Matt Brash from the 60-day injured list. |
| 11/02/26 | Seattle Mariners sent RHP Troy Watson outright to Tacoma Rainiers. |
| 11/02/26 | Seattle Mariners sent 3B Weston Wilson outright to Tacoma Rainiers. |
| 11/02/26 | Seattle Mariners sent 3B Will Wilson outright to Tacoma Rainiers. |
| 11/02/26 | Seattle Mariners sent LHP Josh Simpson outright to Tacoma Rainiers. |
| 11/02/26 | Seattle Mariners sent 3B Patrick Wisdom outright to Tacoma Rainiers. |
| 11/02/26 | Seattle Mariners claimed RHP Isaac Mattson off waivers from Pittsburgh Pirates. |