Mariners Roster & Staff
Transactions
| Date | Transaction |
| 06/28/24 | Seattle Mariners optioned RHP Cody Bolton to Tacoma Rainiers. |
| 06/28/24 | Seattle Mariners recalled LHP Jhonathan Diaz from Tacoma Rainiers. |
| 06/25/24 | Seattle Mariners placed RHP Bryan Woo on the 15-day injured list. Right hamstring strain. |
| 06/25/24 | Seattle Mariners traded LHP Dallas Keuchel to Milwaukee Brewers for cash. |
| 06/25/24 | Seattle Mariners recalled RHP Collin Snider from Tacoma Rainiers. |
| 06/24/24 | Seattle Mariners activated SS Jorge Polanco from the 10-day injured list. |
| 06/24/24 | Seattle Mariners optioned 3B Tyler Locklear to Tacoma Rainiers. |
| 06/22/24 | Seattle Mariners sent C Seby Zavala outright to Tacoma Rainiers. |
| 06/20/24 | Seattle Mariners signed free agent CF Lolo Sanchez to a minor league contract. |
| 06/18/24 | Seattle Mariners designated C Seby Zavala for assignment. |
| 06/18/24 | Seattle Mariners activated 3B Ty France from the 10-day injured list. |
| 06/18/24 | Seattle Mariners sent SS Jorge Polanco on a rehab assignment to Tacoma Rainiers. |
| 06/18/24 | Seattle Mariners sent SS Jorge Polanco on a rehab assignment to Tacoma Rainiers. |
| 06/17/24 | Seattle Mariners signed free agent LHP Rob Kaminsky to a minor league contract. |
| 06/16/24 | RHP Matt Bowman assigned to Seattle Mariners. |
| 06/15/24 | Seattle Mariners sent SS Jorge Polanco on a rehab assignment to Everett AquaSox. |
| 06/15/24 | Seattle Mariners sent SS Jorge Polanco on a rehab assignment to Everett AquaSox. |
| 06/15/24 | Seattle Mariners sent LHP Kirby Snead outright to Tacoma Rainiers. |
| 06/14/24 | Seattle Mariners optioned RHP Emerson Hancock to Tacoma Rainiers. |
| 06/14/24 | Seattle Mariners recalled RHP Cody Bolton from Tacoma Rainiers. |
| 06/14/24 | Seattle Mariners sent RHP Matt Bowman outright to Tacoma Rainiers. |
| 06/13/24 | Seattle Mariners activated 1B Dylan Moore from the paternity list. |
| 06/13/24 | Seattle Mariners recalled RHP Emerson Hancock from Tacoma Rainiers. |
| 06/13/24 | Seattle Mariners optioned RHP Brett de Geus to Tacoma Rainiers. |
| 06/13/24 | Washington Nationals claimed RHP Eduardo Salazar off waivers from Seattle Mariners. |
| 06/13/24 | Seattle Mariners optioned SS Leo Rivas to Tacoma Rainiers. |
| 06/13/24 | Baltimore Orioles claimed RHP Levi Stoudt off waivers from Seattle Mariners. |
| 06/12/24 | RHP Levi Stoudt roster status changed by Seattle Mariners. |
| 06/12/24 | RHP Eduardo Salazar roster status changed by Seattle Mariners. |
| 06/12/24 | Seattle Mariners recalled RHP Brett de Geus from Tacoma Rainiers. |
| 06/12/24 | Seattle Mariners optioned LHP Jhonathan Diaz to Tacoma Rainiers. |
| 06/11/24 | Seattle Mariners designated RHP Matt Bowman for assignment. |
| 06/11/24 | Seattle Mariners designated LHP Kirby Snead for assignment. |
| 06/11/24 | Seattle Mariners recalled RHP Eduard Bazardo from Tacoma Rainiers. |
| 06/11/24 | Seattle Mariners recalled LHP Jhonathan Diaz from Tacoma Rainiers. |
| 06/10/24 | Seattle Mariners placed 1B Dylan Moore on the paternity list. |
| 06/10/24 | Seattle Mariners recalled SS Leo Rivas from Tacoma Rainiers. |
| 06/09/24 | Seattle Mariners placed 3B Ty France on the 10-day injured list retroactive to June 8, 2024. Right heel fracture. |
| 06/09/24 | Seattle Mariners designated RHP Levi Stoudt for assignment. |
| 06/09/24 | Seattle Mariners designated RHP Eduardo Salazar for assignment. |
| 06/09/24 | Seattle Mariners selected the contract of RHP Matt Bowman from Tacoma Rainiers. |
| 06/09/24 | Seattle Mariners optioned RHP Collin Snider to Tacoma Rainiers. |
| 06/09/24 | Seattle Mariners selected the contract of 3B Tyler Locklear from Tacoma Rainiers. |
| 06/04/24 | RHP Matt Bowman assigned to Seattle Mariners. |
| 06/04/24 | Seattle Mariners signed free agent CF Victor Robles. |
| 06/04/24 | Seattle Mariners sent 3B Luis Urías outright to Tacoma Rainiers. |
| 06/03/24 | Seattle Mariners optioned OF Jonatan Clase to Tacoma Rainiers. |
| 06/01/24 | Seattle Mariners placed LHP Gabe Speier on the 15-day injured list retroactive to May 30, 2024. Left rotator cuff strain. |
| 06/01/24 | Seattle Mariners recalled RHP Collin Snider from Tacoma Rainiers. |