Mariners Roster & Staff
Transactions
| Date | Transaction |
| 08/30/22 | Seattle Mariners placed 1B Dylan Moore on the 10-day injured list retroactive to August 29, 2022. Right oblique strain. |
| 08/30/22 | Seattle Mariners recalled 3B Abraham Toro from Tacoma Rainiers. |
| 08/29/22 | Seattle Mariners activated 1B Evan White from the 60-day injured list. |
| 08/29/22 | Seattle Mariners optioned 1B Evan White to Tacoma Rainiers. |
| 08/19/22 | Seattle Mariners signed free agent LHP Tommy Milone to a minor league contract. |
| 08/14/22 | Seattle Mariners released RHP Ken Giles. |
| 08/14/22 | Seattle Mariners sent C Luis Torrens outright to Tacoma Rainiers. |
| 08/13/22 | Seattle Mariners reassigned LF Taylor Trammell to the minor leagues. |
| 08/13/22 | Seattle Mariners sent LHP Matthew Boyd on a rehab assignment to Tacoma Rainiers. |
| 08/13/22 | Seattle Mariners sent LHP Matthew Boyd on a rehab assignment to Tacoma Rainiers. |
| 08/13/22 | Seattle Mariners activated LF Taylor Trammell from the 10-day injured list. |
| 08/13/22 | Seattle Mariners optioned LF Taylor Trammell to Tacoma Rainiers. |
| 08/12/22 | Seattle Mariners reassigned LF Taylor Trammell to the minor leagues. |
| 08/12/22 | Seattle Mariners reassigned LF Taylor Trammell to the minor leagues. |
| 08/12/22 | Seattle Mariners designated RHP Ken Giles for assignment. |
| 08/11/22 | Seattle Mariners activated OF Julio Rodriguez from the 10-day injured list. |
| 08/11/22 | Seattle Mariners designated C Luis Torrens for assignment. |
| 08/11/22 | Seattle Mariners activated C Curt Casali from the 10-day injured list. |
| 08/11/22 | Seattle Mariners optioned OF Jarred Kelenic to Tacoma Rainiers. |
| 08/10/22 | Seattle Mariners activated RHP Diego Castillo from the 15-day injured list. |
| 08/10/22 | Seattle Mariners activated 1B Dylan Moore from the 10-day injured list. |
| 08/10/22 | Seattle Mariners released CF Travis Jankowski. |
| 08/10/22 | Seattle Mariners optioned CF Kyle Lewis to Tacoma Rainiers. |
| 08/10/22 | Seattle Mariners optioned LHP Brennan Bernardino to Tacoma Rainiers. |
| 08/10/22 | Seattle Mariners recalled OF Jarred Kelenic and from Tacoma Rainiers. |
| 08/09/22 | Seattle Mariners activated CF Kyle Lewis from the 7-day injured list. |
| 08/09/22 | Seattle Mariners sent 1B Evan White on a rehab assignment to Tacoma Rainiers. |
| 08/09/22 | Seattle Mariners sent RHP Ken Giles on a rehab assignment to Tacoma Rainiers. |
| 08/09/22 | Seattle Mariners sent 1B Evan White on a rehab assignment to Tacoma Rainiers. |
| 08/09/22 | Seattle Mariners signed free agent LHP Anthony Banda to a minor league contract. |
| 08/09/22 | Seattle Mariners placed LHP Ryan Borucki on the 15-day injured list. Left flexor strain. |
| 08/09/22 | Seattle Mariners recalled LHP Brennan Bernardino from Tacoma Rainiers. |
| 08/07/22 | Seattle Mariners sent RHP Diego Castillo on a rehab assignment to Everett AquaSox. |
| 08/07/22 | LHP Brennan Bernardino returned to Tacoma Rainiers from Seattle Mariners. |
| 08/07/22 | Pittsburgh Pirates claimed 3B Kevin Padlo off waivers from Seattle Mariners. |
| 08/06/22 | Seattle Mariners activated RF Mitch Haniger. |
| 08/06/22 | Seattle Mariners recalled LHP Brennan Bernardino from Tacoma Rainiers. |
| 08/06/22 | Atlanta Braves claimed LHP Danny Young off waivers from Seattle Mariners. |
| 08/06/22 | Seattle Mariners optioned 3B Abraham Toro to Tacoma Rainiers. |
| 08/05/22 | Seattle Mariners signed free agent LHP Drake Batcho to a minor league contract. |
| 08/05/22 | Seattle Mariners designated 3B Kevin Padlo for assignment. |
| 08/05/22 | Seattle Mariners activated 3B Jake Lamb. |
| 08/05/22 | Seattle Mariners designated CF Travis Jankowski for assignment. |
| 08/05/22 | Seattle Mariners activated RF Mitch Haniger. |
| 08/05/22 | Seattle Mariners sent C Curt Casali on a rehab assignment to Tacoma Rainiers. |
| 08/05/22 | Seattle Mariners sent C Curt Casali on a rehab assignment to Tacoma Rainiers. |
| 08/05/22 | Seattle Mariners sent C Curt Casali on a rehab assignment to Tacoma Rainiers. |
| 08/05/22 | Seattle Mariners claimed CF Derek Hill off waivers from Detroit Tigers. |
| 08/04/22 | Seattle Mariners released LHP Tommy Milone. |
| 08/04/22 | Seattle Mariners sent OF Jack Larsen outright to Arkansas Travelers. |
| 08/02/22 | Seattle Mariners designated OF Jack Larsen for assignment. |
| 08/02/22 | Seattle Mariners reassigned C Curt Casali to the minor leagues. |
| 08/02/22 | Seattle Mariners reassigned LHP Matthew Boyd to the minor leagues. |
| 08/02/22 | Seattle Mariners reassigned 3B Jake Lamb to the minor leagues. |
| 08/02/22 | Seattle Mariners activated CF Travis Jankowski. |
| 08/02/22 | Seattle Mariners placed C Curt Casali on the 10-day injured list. |
| 08/02/22 | Seattle Mariners signed free agent RHP Felipe Bello to a minor league contract. |
| 08/02/22 | Seattle Mariners sent RHP Ken Giles on a rehab assignment to Everett AquaSox. |
| 08/02/22 | Seattle Mariners optioned OF Jack Larsen to Arkansas Travelers. |
| 08/02/22 | San Francisco Giants traded LHP Matthew Boyd and C Curt Casali to Seattle Mariners for RHP Michael Stryffeler and C Andy Thomas. |
| 08/02/22 | San Francisco Giants traded LHP Matthew Boyd and C Curt Casali to Seattle Mariners for RHP Michael Stryffeler and C Andy Thomas. |
| 08/02/22 | San Francisco Giants traded LHP Matthew Boyd and C Curt Casali to Seattle Mariners for RHP Michael Stryffeler and C Andy Thomas. |
| 08/02/22 | Los Angeles Dodgers traded 3B Jake Lamb to Seattle Mariners for Player To Be Named Later. |
| 08/02/22 | San Francisco Giants traded LHP Matthew Boyd and C Curt Casali to Seattle Mariners for RHP Michael Stryffeler and C Andy Thomas. |
| 08/01/22 | Seattle Mariners activated RHP Luis Castillo. |
| 08/01/22 | Seattle Mariners signed free agent SS Jonathan Villar to a minor league contract. |
| 08/01/22 | Seattle Mariners designated LHP Danny Young for assignment. |
| 08/01/22 | Seattle Mariners sent CF Marcus Wilson outright to Tacoma Rainiers. |
| 08/01/22 | Seattle Mariners optioned LHP Brennan Bernardino to Tacoma Rainiers. |
| 08/01/22 | Seattle Mariners traded LHP Anthony Misiewicz to Kansas City Royals for cash. |
| 08/01/22 | Seattle Mariners claimed CF Travis Jankowski off waivers from New York Mets. |