Athletics Roster & Staff
Transactions
| Date | Transaction |
| 07/20/26 | Athletics sent 1B Joey Meneses outright to Las Vegas Aviators. |
| 07/18/26 | Athletics placed RHP Justin Sterner on the 15-day injured list. Right knee chondromalacia. |
| 07/18/26 | Athletics designated 1B Joey Meneses for assignment. |
| 07/18/26 | Athletics traded RHP Aaron Civale to Chicago Cubs for RHP Aiden Moffett. |
| 07/18/26 | Athletics traded RHP Aaron Civale to Chicago Cubs for RHP Aiden Moffett. |
| 07/18/26 | Athletics selected the contract of RHP Geoff Hartlieb from Las Vegas Aviators. |
| 07/17/26 | Athletics transferred DH Brent Rooker from the 10-day injured list to the 60-day injured list. Bone bruise in left knee. |
| 07/17/26 | Athletics selected the contract of 3B Tommy White from Las Vegas Aviators. |
| 07/15/26 | Athletics designated RHP Aaron Civale for assignment. |
| 07/15/26 | Athletics activated 3B Donovan Walton. |
| 07/15/26 | Athletics optioned RHP Mason Barnett to Las Vegas Aviators. |
| 07/15/26 | Athletics selected the contract of RHP Yunior Tur from Las Vegas Aviators. |
| 07/15/26 | Athletics optioned 1B Joey Meneses to Las Vegas Aviators. |
| 07/15/26 | Athletics optioned C Brian Serven to Las Vegas Aviators. |
| 07/15/26 | Athletics recalled LHP Brady Basso from Las Vegas Aviators. |
| 07/12/26 | Athletics claimed 3B Donovan Walton off waivers from Los Angeles Angels. |
| 07/11/26 | Athletics placed 1B Nick Kurtz on the 10-day injured list retroactive to July 10, 2026. Right thumb capsule sprain. |
| 07/11/26 | Athletics recalled C Brian Serven from Las Vegas Aviators. |
| 07/10/26 | Athletics placed 3B Zack Gelof on the 10-day injured list. Right knee laceration. |
| 07/10/26 | Athletics recalled 1B Joey Meneses from Las Vegas Aviators. |
| 07/08/26 | Athletics activated LF Tyler Soderstrom from the 10-day injured list. |
| 07/08/26 | Athletics optioned 3B Max Muncy to Las Vegas Aviators. |
| 07/07/26 | Athletics activated SS Jacob Wilson from the 10-day injured list. |
| 07/07/26 | Athletics optioned C Brian Serven to Las Vegas Aviators. |
| 07/07/26 | Athletics recalled LHP Jacob Lopez from Las Vegas Aviators. |
| 07/07/26 | Athletics optioned RHP Kade Morris to Las Vegas Aviators. |
| 07/06/26 | Athletics optioned RHP Kade Morris to Las Vegas Aviators. |
| 07/05/26 | Athletics released RHP Michael Kelly. |
| 07/04/26 | Athletics activated 3B Zack Gelof from the 10-day injured list. |
| 07/04/26 | Athletics sent RHP Geoff Hartlieb outright to Las Vegas Aviators. |
| 07/04/26 | Athletics selected the contract of C Brian Serven from Las Vegas Aviators. |
| 07/04/26 | Athletics optioned 1B Joey Meneses to Las Vegas Aviators. |
| 07/04/26 | Athletics optioned SS Darell Hernaiz to Las Vegas Aviators. |
| 07/04/26 | Washington Nationals claimed LHP Matt Krook off waivers from Athletics. |
| 07/03/26 | Athletics activated RHP Mark Leiter Jr. from the 15-day injured list. |
| 07/03/26 | Athletics designated RHP Geoff Hartlieb for assignment. |
| 07/02/26 | Athletics designated LHP Matt Krook for assignment. |
| 07/02/26 | Athletics activated LHP José Suarez from the paternity list. |
| 07/01/26 | Athletics traded 3B Brett Harris to Boston Red Sox for RHP Ben Hansen. |
| 07/01/26 | Athletics traded 3B Brett Harris to Boston Red Sox for RHP Ben Hansen. |