Athletics Roster & Staff
Transactions
| Date | Transaction |
| 05/16/26 | Athletics designated 2B Michael Stefanic for assignment. |
| 05/16/26 | LHP Jackson Nove roster status changed by Athletics. |
| 05/16/26 | Athletics traded CF Junior Perez to Chicago White Sox for LHP Jackson Nove. |
| 05/16/26 | Athletics traded CF Junior Perez to Chicago White Sox for LHP Jackson Nove. |
| 05/16/26 | Athletics traded RHP Kyle Robinson to Pittsburgh Pirates for 2B Alika Williams. |
| 05/16/26 | Athletics traded RHP Kyle Robinson to Pittsburgh Pirates for 2B Alika Williams. |
| 05/15/26 | Athletics activated LHP José Suarez. |
| 05/15/26 | Athletics traded RHP Eduarniel Núñez to Baltimore Orioles for cash. |
| 05/15/26 | Athletics optioned RHP Mason Barnett to Las Vegas Aviators. |
| 05/14/26 | Athletics designated CF Junior Perez for assignment. |
| 05/14/26 | RHP Eduarniel Núñez roster status changed by Athletics. |
| 05/14/26 | Seattle Mariners traded LHP José Suarez to Athletics for cash. |
| 05/13/26 | Athletics placed RHP Brooks Kriske on the 15-day injured list. Right shoulder impingement. |
| 05/13/26 | Athletics recalled RHP Mason Barnett from Las Vegas Aviators. |
| 05/12/26 | Athletics designated RHP Eduarniel Núñez for assignment. |
| 05/12/26 | Athletics released C Austin Wynns. |
| 05/12/26 | Athletics placed SS Jacob Wilson on the 10-day injured list retroactive to May 11, 2026. Left shoulder dislocation. |
| 05/12/26 | Athletics optioned 3B Brett Harris to Las Vegas Aviators. |
| 05/12/26 | Athletics selected the contract of 2B Michael Stefanic from Las Vegas Aviators. |
| 05/12/26 | Athletics selected the contract of RF Henry Bolte from Las Vegas Aviators. |
| 05/07/26 | Athletics designated C Austin Wynns for assignment. |
| 05/07/26 | Athletics activated C Shea Langeliers from the paternity list. |
| 05/07/26 | Athletics traded RHP Tyler Ferguson to Chicago Cubs. |
| 05/06/26 | Athletics optioned RHP Tyler Ferguson to Las Vegas Aviators. |
| 05/06/26 | Athletics selected the contract of RHP Brooks Kriske from Las Vegas Aviators. |
| 05/04/26 | Athletics placed C Shea Langeliers on the paternity list. |
| 05/04/26 | Atlanta Braves traded C Jonah Heim to Athletics for cash. |
| 05/03/26 | Athletics recalled RHP Tyler Ferguson from Las Vegas Aviators. |
| 05/03/26 | Athletics optioned RHP Luis Morales to Las Vegas Aviators. |
| 05/02/26 | Athletics optioned LHP Brady Basso to Las Vegas Aviators. |
| 05/02/26 | Athletics recalled RHP Luis Morales from Las Vegas Aviators. |