Mariners Roster & Staff
Transactions
| Date | Transaction |
| 09/28/24 | Seattle Mariners placed RHP Bryce Miller on the 15-day injured list. Right index finger blister. |
| 09/28/24 | Seattle Mariners recalled RHP Emerson Hancock from Tacoma Rainiers. |
| 09/23/24 | Seattle Mariners activated RHP Gregory Santos from the 15-day injured list. |
| 09/23/24 | Seattle Mariners optioned LHP Jhonathan Díaz to ACL Mariners. |
| 09/22/24 | Seattle Mariners optioned RHP Emerson Hancock to Tacoma Rainiers. |
| 09/22/24 | Seattle Mariners recalled LHP Gabe Speier from Tacoma Rainiers. |
| 09/16/24 | Seattle Mariners sent C Seby Zavala outright to Tacoma Rainiers. |
| 09/13/24 | Seattle Mariners designated C Seby Zavala for assignment. |
| 09/13/24 | Seattle Mariners recalled RHP Emerson Hancock from Tacoma Rainiers. |
| 09/11/24 | Seattle Mariners sent 1B Jason Vosler outright to Tacoma Rainiers. |
| 09/10/24 | Seattle Mariners transferred RHP Yimi García from the 15-day injured list to the 60-day injured list. Right elbow inflammation. |
| 09/10/24 | Seattle Mariners activated C Seby Zavala. |
| 09/10/24 | Seattle Mariners placed RHP Luis Castillo on the 15-day injured list retroactive to September 9, 2024. Left hamstring strain. |
| 09/10/24 | Seattle Mariners selected the contract of C Seby Zavala from Tacoma Rainiers. |
| 09/09/24 | Seattle Mariners designated 1B Jason Vosler for assignment. |
| 09/09/24 | Seattle Mariners optioned LHP Austin Kitchen to Tacoma Rainiers. |
| 09/09/24 | Seattle Mariners claimed LHP Austin Kitchen off waivers from Miami Marlins. |
| 09/06/24 | Seattle Mariners sent RHP Gregory Santos on a rehab assignment to Tacoma Rainiers. |
| 09/06/24 | Seattle Mariners sent RHP Gregory Santos on a rehab assignment to Tacoma Rainiers. |
| 09/04/24 | Seattle Mariners signed RHP Jesse Hahn. |
| 09/04/24 | Seattle Mariners sent 2B Terrin Vavra outright to Tacoma Rainiers. |
| 09/01/24 | Seattle Mariners recalled RHP Eduard Bazardo from Tacoma Rainiers. |
| 09/01/24 | Seattle Mariners recalled LHP Jhonathan Diaz from Tacoma Rainiers. |