Athletics Roster & Staff
Transactions
| Date | Transaction |
| 07/31/23 | Oakland Athletics designated C Manny Piña for assignment. |
| 07/31/23 | RHP Chad Patrick roster status changed by Oakland Athletics. |
| 07/31/23 | Oakland Athletics traded LHP Sam Moll and cash to Cincinnati Reds for RHP Joe Boyle. |
| 07/31/23 | Oakland Athletics traded LHP Sam Moll and cash to Cincinnati Reds for RHP Joe Boyle. |
| 07/31/23 | Oakland Athletics traded 2B Jace Peterson and cash to Arizona Diamondbacks for RHP Chad Patrick. |
| 07/31/23 | Oakland Athletics traded 2B Jace Peterson and cash to Arizona Diamondbacks for RHP Chad Patrick. |
| 07/27/23 | Oakland Athletics sent SS Kevin Smith on a rehab assignment to Las Vegas Aviators. |
| 07/27/23 | Oakland Athletics sent SS Kevin Smith on a rehab assignment to Las Vegas Aviators. |
| 07/27/23 | Oakland Athletics sent 2B Esteury Ruiz on a rehab assignment to Las Vegas Aviators. |
| 07/26/23 | Oakland Athletics sent RHP Zach Jackson on a rehab assignment to Stockton Ports. |
| 07/25/23 | Oakland Athletics activated CF Ramón Laureano from the 10-day injured list. |
| 07/25/23 | Oakland Athletics activated RHP Angel Felipe from the paternity list. |
| 07/25/23 | Oakland Athletics sent C Manny Piña on a rehab assignment to Las Vegas Aviators. |
| 07/25/23 | Oakland Athletics optioned RHP Chad Smith to Las Vegas Aviators. |
| 07/24/23 | Oakland Athletics optioned 3B Jonah Bride to Las Vegas Aviators. |
| 07/23/23 | Oakland Athletics sent C Manny Piña on a rehab assignment to Stockton Ports. |
| 07/22/23 | Oakland Athletics placed RHP Angel Felipe on the paternity list. |
| 07/22/23 | Oakland Athletics selected the contract of RHP Chad Smith from Las Vegas Aviators. |
| 07/21/23 | Oakland Athletics signed RHP Ryan Brown. |
| 07/21/23 | Oakland Athletics signed LHP Diego Barrera. |
| 07/20/23 | Oakland Athletics placed 1B Ryan Noda on the 10-day injured list retroactive to July 19, 2023. Fractured mandible. |
| 07/20/23 | Oakland Athletics recalled 3B Jonah Bride from Las Vegas Aviators. |
| 07/19/23 | Oakland Athletics released RHP Garrett Acton. |
| 07/19/23 | Oakland Athletics sent RHP Dany Jiménez on a rehab assignment to Las Vegas Aviators. |
| 07/19/23 | Oakland Athletics signed free agent RHP Zack Godley to a minor league contract. |
| 07/19/23 | Oakland Athletics claimed RHP Tayler Scott off waivers from Boston Red Sox. |
| 07/19/23 | Oakland Athletics traded RHP Shintaro Fujinami to Baltimore Orioles for LHP Easton Lucas. |
| 07/19/23 | Oakland Athletics traded RHP Shintaro Fujinami to Baltimore Orioles for LHP Easton Lucas. |
| 07/18/23 | Oakland Athletics sent CF Ramón Laureano on a rehab assignment to Las Vegas Aviators. |
| 07/18/23 | Oakland Athletics sent CF Ramón Laureano on a rehab assignment to Las Vegas Aviators. |
| 07/17/23 | Oakland Athletics signed LHP Will Johnston. |
| 07/17/23 | Oakland Athletics signed RHP Corey Avant. |
| 07/17/23 | Oakland Athletics signed OF Nate Nankil. |
| 07/17/23 | Oakland Athletics signed free agent C Nick Schwartz to a minor league contract. |
| 07/17/23 | Oakland Athletics signed RHP Jackson Finley. |
| 07/17/23 | Oakland Athletics signed OF Ryan Lasko. |
| 07/17/23 | Oakland Athletics signed 3B Myles Naylor. |
| 07/17/23 | Oakland Athletics signed 3B Luke Mann. |
| 07/17/23 | Oakland Athletics signed RHP Tom Reisinger. |
| 07/17/23 | Oakland Athletics signed RHP Nathan Dettmer. |
| 07/17/23 | Oakland Athletics signed C Cole Conn. |
| 07/17/23 | Oakland Athletics signed RHP Cole Miller. |
| 07/17/23 | Oakland Athletics signed OF Will Simpson. |
| 07/17/23 | Oakland Athletics signed free agent SS Casey Yamauchi to a minor league contract. |
| 07/17/23 | Oakland Athletics signed SS Jacob Wilson. |
| 07/17/23 | Oakland Athletics signed OF Jonah Cox. |
| 07/17/23 | Oakland Athletics signed RHP Drew Conover. |
| 07/17/23 | Oakland Athletics signed RHP Steven Echavarria. |
| 07/16/23 | Oakland Athletics signed 2B Colby Halter. |
| 07/14/23 | Oakland Athletics placed LHP Richard Lovelady on the 15-day injured list retroactive to July 11, 2023. Strained left forearm. |
| 07/14/23 | Oakland Athletics placed C Manny Piña on the 10-day injured list retroactive to July 11, 2023. Left wrist contusion. |
| 07/14/23 | Oakland Athletics selected the contract of 3B Zack Gelof from Las Vegas Aviators. |
| 07/14/23 | Oakland Athletics recalled RHP Freddy Tarnok from Las Vegas Aviators. |
| 07/14/23 | Oakland Athletics sent 2B Tyler Wade outright to Las Vegas Aviators. |
| 07/14/23 | Oakland Athletics selected the contract of C Tyler Soderstrom from Las Vegas Aviators. |
| 07/12/23 | Seattle Mariners claimed RHP Adam Oller off waivers from Oakland Athletics. |
| 07/10/23 | Oakland Athletics sent RHP Rico Garcia outright to Las Vegas Aviators. |
| 07/08/23 | Oakland Athletics transferred RHP Yacksel Ríos from the 15-day injured list to the 60-day injured list. Raynaud’s Syndrome. |
| 07/08/23 | Oakland Athletics activated RHP Freddy Tarnok from the 60-day injured list. |
| 07/08/23 | Oakland Athletics optioned RHP Freddy Tarnok to Las Vegas Aviators. |
| 07/07/23 | Oakland Athletics placed 2B Esteury Ruiz on the 10-day injured list retroactive to July 6, 2023. Right shoulder subluxation. |
| 07/07/23 | Oakland Athletics designated RHP Rico Garcia for assignment. |
| 07/07/23 | Oakland Athletics selected the contract of CF Cody Thomas from Las Vegas Aviators. |
| 07/07/23 | Oakland Athletics recalled RHP Angel Felipe from Las Vegas Aviators. |
| 07/07/23 | Oakland Athletics optioned RHP Rico Garcia to Las Vegas Aviators. |
| 07/06/23 | Oakland Athletics sent RHP Chad Smith outright to Las Vegas Aviators. |
| 07/04/23 | Oakland Athletics placed C Carlos Pérez on the 10-day injured list retroactive to July 2, 2023. Fractured left thumb. |
| 07/04/23 | Oakland Athletics designated RHP Chad Smith for assignment. |
| 07/04/23 | Oakland Athletics activated C Manny Piña from the 60-day injured list. |
| 07/04/23 | Oakland Athletics recalled SS Nick Allen from Las Vegas Aviators. |
| 07/04/23 | Oakland Athletics optioned CF Conner Capel to Las Vegas Aviators. |
| 07/03/23 | Oakland Athletics signed free agent RHP Jonathan Cortes to a minor league contract. |
| 07/02/23 | Oakland Athletics sent C Manny Piña on a rehab assignment to Las Vegas Aviators. |
| 07/02/23 | Oakland Athletics activated LHP Richard Lovelady from the 15-day injured list. |
| 07/02/23 | Oakland Athletics optioned LHP Kyle Muller to Las Vegas Aviators. |
| 07/01/23 | Oakland Athletics recalled LHP Kyle Muller from Las Vegas Aviators. |
| 07/01/23 | Oakland Athletics optioned LHP Kirby Snead to Las Vegas Aviators. |