Every trade between the Baltimore Orioles and the Seattle Mariners
The Baltimore Orioles and the Seattle Mariners have made 22 deals with each other since 1976, 4 of them sales. The most recent, on Aug 3, 2026: Baltimore Orioles traded LF Taylor Ward to Seattle Mariners for RHP Alex Hoppe, RHP Brock Moore and RHP Harrison Kreiling. The first on file, on Oct 1, 1976: The Seattle Mariners purchased Dave Johnson from the Baltimore Orioles.
Baltimore OriolesSeattle MarinersPlayers who played for both →
Baltimore Orioles
Seattle Mariners22 deals, newest first
| Date | Deal |
|---|---|
| Aug 3, 2026 | Baltimore Orioles traded LF Taylor Ward to Seattle Mariners for RHP Alex Hoppe, RHP Brock Moore and RHP Harrison Kreiling. |
| May 8, 2025 | Seattle Mariners traded RHP Luis F. Castillo to Baltimore Orioles for cash. |
| Jan 15, 2025 | Baltimore Orioles traded C Blake Hunt to Seattle Mariners for cash. |
| May 22, 2024 | Seattle Mariners traded C Blake Hunt to Baltimore Orioles for RHP Mike Baumann and C Michael Pérez. |
| Aug 1, 2023 | Baltimore Orioles traded RHP Eduard Bazardo to Seattle Mariners for RHP Logan Rinehart. |
| Dec 8, 2021 | The Baltimore Orioles purchased Tommy Wilson from the Seattle Mariners. |
| Apr 24, 2019 | The Baltimore Orioles traded Mike Wright to the Seattle Mariners for Ryne Ogren. |
| Apr 14, 2017 | The Seattle Mariners traded Paul Fry to the Baltimore Orioles. |
| Jan 6, 2017 | The Baltimore Orioles traded Yovani Gallardo to the Seattle Mariners for Seth Smith. |
| Jul 31, 2016 | The Baltimore Orioles traded Aríel Miranda to the Seattle Mariners for Wade Miley. |
| Dec 2, 2015 | The Baltimore Orioles traded Steve Clevenger to the Seattle Mariners for Mark Trumbo and C. J. Riefenhauser. |
| Aug 30, 2013 | The Baltimore Orioles traded Xavier Avery to the Seattle Mariners for Mike Morse. |
| Jul 6, 2013 | The Baltimore Orioles purchased Alex Liddi from the Seattle Mariners. |
| Jun 30, 2013 | The Baltimore Orioles traded Ty Kelly to the Seattle Mariners for Eric Thames. |
| Nov 20, 2012 | The Baltimore Orioles traded Robert Andino to the Seattle Mariners for Trayvon Robinson. |
| Feb 8, 2008 | The Baltimore Orioles traded Érik Bédard to the Seattle Mariners for Adam Jones, George Sherrill, Tony Butler, Chris Tillman and Kam Mickolio. |
| Aug 9, 2007 | The Baltimore Orioles traded John Parrish to the Seattle Mariners for Sebastien Boucher. |
| Dec 9, 1987 | The Baltimore Orioles traded Ken Dixon to the Seattle Mariners for Mike Morgan. |
| Aug 11, 1987 | The Baltimore Orioles traded Nelson Simmons to the Seattle Mariners for Mike Brown. |
| Jun 30, 1983 | The Baltimore Orioles purchased Todd Cruz from the Seattle Mariners. |
| Dec 7, 1977 | The Baltimore Orioles traded Mike Parrott to the Seattle Mariners for Carlos López and Tommy Moore. |
| Oct 1, 1976 | The Seattle Mariners purchased Dave Johnson from the Baltimore Orioles. |
Trades and sales between the two franchises under every name they have had. To May 2022 from Retrosheet, since then from MLB's transaction feed. The information used here was obtained free of charge from and is copyrighted by Retrosheet. Interested parties may contact Retrosheet at www.retrosheet.org.