Mariners Roster & Staff
Transactions
| Date | Transaction |
| 11/30/22 | Seattle Mariners activated RHP Trevor Gott. |
| 11/30/22 | Seattle Mariners activated RHP Trevor Gott. |
| 11/30/22 | Seattle Mariners signed free agent RHP Trevor Gott. |
| 11/22/22 | LF Taylor Trammell changed number to 5. |
| 11/22/22 | Seattle Mariners signed free agent RHP Jose Rodriguez to a minor league contract. |
| 11/18/22 | Seattle Mariners signed free agent RHP Joseph Yabbour to a minor league contract. |
| 11/18/22 | C Brian O'Keefe elected free agency. |
| 11/18/22 | C Luis Torrens elected free agency. |
| 11/18/22 | RHP Luke Weaver elected free agency. |
| 11/17/22 | Seattle Mariners traded CF Kyle Lewis to Arizona Diamondbacks for C Cooper Hummel. |
| 11/17/22 | Seattle Mariners traded CF Kyle Lewis to Arizona Diamondbacks for C Cooper Hummel. |
| 11/16/22 | Seattle Mariners activated LF Teoscar Hernández. |
| 11/16/22 | Seattle Mariners activated LF Teoscar Hernández. |
| 11/16/22 | Toronto Blue Jays traded LF Teoscar Hernandez to Seattle Mariners for LHP Adam Macko and RHP Erik Swanson. |
| 11/16/22 | Toronto Blue Jays traded LF Teoscar Hernandez to Seattle Mariners for LHP Adam Macko and RHP Erik Swanson. |
| 11/16/22 | Toronto Blue Jays traded LF Teoscar Hernandez to Seattle Mariners for LHP Adam Macko and RHP Erik Swanson. |
| 11/14/22 | Seattle Mariners activated OF Jonatan Clase. |
| 11/14/22 | Seattle Mariners selected the contract of RHP Prelander Berroa from Arkansas Travelers. |
| 11/14/22 | Seattle Mariners selected the contract of LF Cade Marlowe from Tacoma Rainiers. |
| 11/14/22 | Seattle Mariners selected the contract of OF Jonatan Clase from Modesto Nuts. |
| 11/09/22 | Seattle Mariners activated C Tom Murphy from the 60-day injured list. |
| 11/09/22 | RHP Casey Sadler elected free agency. |
| 11/09/22 | LHP Ryan Borucki elected free agency. |
| 11/09/22 | Seattle Mariners claimed LHP Gabe Speier off waivers from Kansas City Royals. |
| 11/09/22 | Boston Red Sox traded RHP Easton McGee to Seattle Mariners for cash. |
| 11/09/22 | Seattle Mariners sent RHP Casey Sadler outright to Tacoma Rainiers. |
| 11/09/22 | Seattle Mariners sent LHP Ryan Borucki outright to Tacoma Rainiers. |
| 11/06/22 | C Curt Casali elected free agency. |
| 11/06/22 | 2B Adam Frazier elected free agency. |
| 11/06/22 | LHP Matthew Boyd elected free agency. |
| 11/06/22 | 1B Carlos Santana elected free agency. |
| 11/06/22 | RF Mitch Haniger elected free agency. |
| 11/03/22 | Seattle Mariners sent 3B Drew Ellis outright to Tacoma Rainiers. |