Roster y Personal de los Mariners
Transacciones
| Fecha | Transacci¨®n |
| 03/25/25 | Seattle Mariners seleccionado el contrato de 1B Rowdy Tellez de Tacoma Rainiers. |
| 03/24/25 | C Andruw Salcedo asignado a Seattle Mariners. |
| 03/24/25 | 1B Gabriel Moncada asignado a Seattle Mariners. |
| 03/24/25 | CF Kelvin Alcantara asignado a Seattle Mariners. |
| 03/23/25 | Seattle Mariners liberan a RF Mitch Haniger. |
| 03/23/25 | Seattle Mariners opcionado RHP Casey Legumina a Tacoma Rainiers. |
| 03/23/25 | Seattle Mariners opcionado C Blake Hunt a Tacoma Rainiers. |
| 03/23/25 | Seattle Mariners opcionado SS Leo Rivas a Tacoma Rainiers. |
| 03/22/25 | RHP Allan Saathoff asignado a Seattle Mariners. |
| 03/22/25 | Seattle Mariners opcionado RF Dominic Canzone a Tacoma Rainiers. |
| 03/22/25 | Seattle Mariners opcionado 1B Austin Shenton a Tacoma Rainiers. |
| 03/22/25 | New York Mets cambian a RHP Michael Hobbs a Seattle Mariners. |
| 03/21/25 | 2B Ricardo Cova asignado a Seattle Mariners. |
| 03/18/25 | CF George Feliz asignado a Seattle Mariners. |
| 03/16/25 | 2B Dervy Ventura asignado a Seattle Mariners. |
| 03/16/25 | CF Cesar Quintas asignado a Seattle Mariners. |
| 03/16/25 | RHP Kyle Hill asignado a Seattle Mariners. |
| 03/16/25 | RHP Jordan Jackson asignado a Seattle Mariners. |
| 03/16/25 | OF Yoyner Fajardo asignado a Seattle Mariners. |
| 03/16/25 | 1B Hunter Fitz-Gerald asignado a Seattle Mariners. |
| 03/15/25 | RHP Jean Munoz asignado a Seattle Mariners. |
| 03/15/25 | CF Victor Labrada asignado a Seattle Mariners. |
| 03/15/25 | LHP Matt Cronin asignado a Seattle Mariners. |
| 03/15/25 | RHP Adrian Quintana asignado a Seattle Mariners. |
| 03/15/25 | C Matthew Ellis asignado a Seattle Mariners. |
| 03/15/25 | Miami Marlins reclamado RHP Seth Martinez fuera de waivers de Seattle Mariners. |
| 03/15/25 | Seattle Mariners opcionado 1B Tyler Locklear a Tacoma Rainiers. |
| 03/14/25 | Seattle Mariners liberan a RHP Neftal¨ª Feliz. |
| 03/14/25 | RHP Anyelo Ovando asignado a Seattle Mariners. |
| 03/14/25 | OF Ryan Picollo asignado a Seattle Mariners. |
| 03/14/25 | Seattle Mariners opcionado RHP Will Klein a Tacoma Rainiers. |
| 03/13/25 | C Julio E. Rodriguez asignado a Seattle Mariners. |
| 03/13/25 | 3B Austin St. Laurent asignado a Seattle Mariners. |
| 03/12/25 | 3B Ben Ramirez asignado a Seattle Mariners. |
| 03/12/25 | LF Colin Davis asignado a Seattle Mariners. |
| 03/10/25 | Seattle Mariners opcionado RHP Cody Bolton a Tacoma Rainiers. |
| 03/08/25 | CF Curtis Washington Jr. asignado a Seattle Mariners. |
| 03/08/25 | SS Axel Sanchez asignado a Seattle Mariners. |
| 03/08/25 | RHP Reid Morgan asignado a Seattle Mariners. |
| 03/07/25 | Seattle Mariners opcionado RHP Hagen Danner a Tacoma Rainiers. |
| 03/07/25 | Seattle Mariners opcionado RHP Blas Castano a Tacoma Rainiers. |
| 03/06/25 | RHP Travis Kuhn asignado a Seattle Mariners. |
| 03/02/25 | Seattle Mariners ponen a RHP Jackson Kowar en la 60-día lista de lesionados. Tommy John surgery recovery. |
| 03/02/25 | Seattle Mariners liberan a RHP Dauris Valdez. |
| 03/02/25 | Seattle Mariners reclamado RHP Seth Martinez fuera de waivers de Miami Marlins. |