| | P | Traded (The Athletics traded RHP Will Klein to the Seattle Mariners.) To |
| | P | Designated for Assignment (The Athletics designated RHP Will Klein for assignment.) |
| | P | Signed (The Athletics signed RHP José Leclerc.) |
| | P | Signed (The Athletics signed LHP CD Pelham to a minor league contract with an invitation to spring training.) |
| | P | Released (The Athletics released RHP Austin Adams.) |
| | P | Released (The Athletics released RHP Austin Adams.) |
| | 3B | Signed (The Athletics signed INF Gio Urshela.) |
| | C | Signed (The Athletics signed C Willie MacIver to a minor league contract with an invitation to spring training.) |
| | P | Traded (The Tampa Bay Rays traded LHP Jacob Lopez to the Athletics.) From |
| | P | Traded (The Athletics traded RHP Joe Boyle to the Tampa Bay Rays.) To |
| | P | Traded (The Athletics traded RHP Jacob Watters to the Tampa Bay Rays.) To |
| | 1B | Traded (The Athletics traded INF Will Simpson to the Tampa Bay Rays.) To |
| | P | Traded (The Tampa Bay Rays traded LHP Jeffrey Springs to the Athletics.) From |
| | P | Signed (The Athletics signed LHP Ben Bowden to a minor league contract.) |
| | | Drafted Via Rule 5 (The Athletics selected RHP Henry Gomez in the Rule 5 Draft.) |
| | P | Drafted Via Rule 5 (The Athletics selected RHP Noah Murdock in the Rule 5 Draft.) |
| | P | Signed (The Athletics signed RHP Luis Severino to a Major League Contract.) |
| | P | Signed (The Athletics signed RHP Gustavo Rodriguez to a minor league contract.) |
| | CF | Signed (The Athletics signed OF Drew Avans to a minor league contract.) |
| | CF | Signed (The Athletics signed OF Carlos Cortes to a minor league contract.) |
| | P | Released (The Athletics released RHP Dany Jiménez) |
| | CF | Recalled From Minors Rehab (The Athletics selected the contract of OF Denzel Clarke from the minors.) |
| | P | Recalled From Minors Rehab (The Athletics selected the contract of RHP Gunnar Hoglund from the minors.) |
| | P | Recalled From Minors Rehab (The Athletics selected the contract of RHP Ryan Cusick from the minors.) |
| | P | Signed (The Athletics signed RHP Jason Alexander to a minor league contract.) |
| | P | Signed (The Athletics signed LHP Matt Krook to a minor league contract.) |
| | P | Signed (The Athletics signed RHP Tanner Dodson to a minor league contract.) |
| | P | Traded (The Atlanta Braves traded RHP Jared Johnson to the Athletics.) From |
| | SS | Traded (The Athletics traded INF Nick Allen to the Atlanta Braves.) To |
| | P | Signed (The Athletics signed LHP T.J. McFarland to a Major League Contract.) |
| | P | Signed (The Athletics signed LHP T.J. McFarland to a Major League Contract.) |
| | P | Claimed on Unconditional Release Waivers (The Athletics traded RHP Justin Sterner off waivers from the Tampa Bay Rays.) |
| | P | Claimed on Unconditional Release Waivers (The Athletics claimed RHP Anthony Maldonado to the Miami Marlins.) |
| | 3B | Declared Free Agency (INF Tyler Nevin elected free agency.) |
| | 2B | Signed (The Athletics signed INF Alejo López to a minor league contract with an invitation to spring training.) |
| | P | Waived (The Oakland Athletics waived RHP Royber Salinas.) |
| | P | Sent to Minors (The Oakland Athletics sent LHP Kyle Muller outright to the minors.) |
| | 3B | Sent to Minors (The Oakland Athletics sent INF Tyler Nevin outright to the minors.) |
| | 1B | Waived (The Oakland Athletics waived INF Ryan Noda.) |
| | P | Waived (The Oakland Athletics waived RHP Royber Salinas.) |
| | 3B | Declared Free Agency (INF Abraham Toro elected free agency.) |
| | 3B | Waived (The Oakland Athletics waived INF Tristan Gray.) |
| | 3B | Sent to Minors (The Oakland Athletics outrighted INF Armando Alvarez to the minors.) |
| | P | Declared Free Agency (RHP Brandon Bielak elected free agency.) |
| | P | Sent to Minors (The Oakland Athletics outrighted RHP Austin Adams to the minors.) |
| | P | Declared Free Agency (RHP Gerardo Reyes elected free agency.) |
| | P | Declared Free Agency (LHP T.J. McFarland elected free agency.) |
| | P | Declared Free Agency (LHP T.J. McFarland elected free agency.) |
| | P | Declared Free Agency (RHP Gerardo Reyes elected free agency.) |
| | 3B | Waived (The Oakland Athletics waived INF Tristan Gray.) |
| | P | Declared Free Agency (LHP Alex Wood elected free agency.) |
| | P | Declared Free Agency (RHP Ross Stripling elected free agency.) |
| | RF | Traded (The Oakland Athletics traded OF Daz Cameron to the Baltimore Orioles.) To |
| | P | Declared Free Agency (RHP Brandon Bielak elected free agency.) |
| | P | Declared Free Agency (LHP Scott Alexander elected free agency.) |
| | P | Declared Free Agency (LHP Scott Alexander elected free agency.) |
| | P | Declared Free Agency (RHP Ross Stripling elected free agency.) |
| | P | Declared Free Agency (LHP Alex Wood elected free agency.) |
| | P | Declared Free Agency (RHP Trevor Gott elected free agency.) |
| | P | Declared Free Agency (RHP Aaron Brooks elected free agent.) |
| | 3B | Declared Free Agency (INF Abraham Toro elected free agency.) |
| | P | Activated (The Oakland Athletics activated RHP Ross Stripling from the 15-day injured list.) |
| | P | Sent to Minors (The Oakland Athletics optioned LHP Brady Basso to the minors.) |
| | P | Sent to Minors (The Oakland Athletics sent RHP Brandon Bielak outright to the minors.) |
| | 1B | Sent to Minors (The Oakland Athletics optioned INF Ryan Noda to the minors.) |
| | SS | Recalled From Minors Rehab (The Oakland Athletics recalled INF Darell Hernaiz from the minors.) |
| | P | Designated for Assignment (The Oakland Athletics designated RHP Brandon Bielak for assignment.) |
| | P | Recalled From Minors Rehab (The Oakland Athletics recalled RHP Joe Boyle from the minors.) |
| | 3B | Sent to Minors (The Oakland Athletics optioned INF Armando Alvarez to the minors.) |
| | 1B | Activated (The Oakland Athletics activated INF Tyler Soderstrom from the 10-day injured list.) |
| | P | Sent to Minors (The Oakland Athletics sent LHP Jack O'Loughlin outright to the minors.) |
| | P | Designated for Assignment (The Oakland Athletics designated LHP Jack O'Loughlin for assignment.) |
| | P | Recalled From Minors Rehab (The Oakland Athletics selected the contract of LHP Kyle Muller from the minors.) |
| | P | Placed on 15-Day IL (The Oakland Athletics placed RHP Ross Stripling on the 15-day injured list.) |
| | 1B | Recalled From Minors Rehab (The Oakland Athletics recalled INF Ryan Noda from the minors.) |
| | P | Recalled From Minors Rehab (The Oakland Athletics recalled LHP Brady Basso from the minors.) |
| | P | Placed on 15-Day IL (The Oakland Athletics placed RHP Osvaldo Bido on the 15-day injured list.) |
| | 3B | Sent to Minors (The Oakland Athletics optioned INF Tristan Gray to the minors.) |
| | P | Recalled From Minors Rehab (The Oakland Athletics selected the contract of RHP Brandon Bielak from the minors.) |
| | P | Sent to Minors (The Oakland Athletics optioned LHP Brady Basso to the minors.) |
| | P | Sent to Minors (The Oakland Athletics sent RHP Janson Junk outright to the minors.) |
| | P | Designated for Assignment (The Oakland Athletics designated RHP Janson Junk for assignment.) |
| | P | Recalled From Minors Rehab (The Oakland Athletics recalled LHP Brady Basso from the minors.) |
| | LF | Placed on 60-Day IL (The Oakland Athletics transferred OF Esteury Ruiz from the 10-day injured list to the 60-day injured list.) |
| | 3B | Claimed on Unconditional Release Waivers (The Oakland Athletics claimed INF CJ Alexander off waivers from the Kansas City Royals and optioned him to the minors.) |
| | P | Sent to Minors (The Oakland Athletics optioned RHP Joe Boyle to the minors.) |
| | P | Activated (The Oakland Athletics activated LHP Scott Alexander from the 15-day injured list.) |
| | P | Recalled From Minors Rehab (The Oakland Athletics recalled RHP Janson Junk from the minors.) |
| | 3B | Recalled From Minors Rehab (The Oakland Athletics recalled INF Tristan Gray from the minors.) |
| | P | Claimed on Unconditional Release Waivers (The Oakland Athletics claimed RHP Janson Junk off waivers from the Houston Astros.) |
| | LF | Placed on 60-Day IL (The Oakland Athletics transferred OF Miguel Anduja from the 10-day injured list to the 60-day injured list.) |
| | LF | Placed on 10-Day IL (The Oakland Athletics placed OF Miguel Andujar on the 10-day injured list, retroactive to August 25.) |
| | 3B | Sent to Minors (The Oakland Athletics sent INF Abraham Toro outright to the minors.) |
| | SS | Recalled From Minors Rehab (The Oakland Athletics recalled INF Nick Allen from the minors.) |
| | 3B | Recalled From Minors Rehab (The Oakland Athletics recalled INF Armando Alvarez from the minors.) |
| | SS | Activated (The Oakland Athletics activated INF Jacob Wilson from the 10-day injured list.) |
| | 3B | Designated for Assignment (The Oakland Athletics designated INF Abraham Toro for assignment.) |
| | 3B | Claimed on Unconditional Release Waivers (The Oakland Athletics claimed INF Tristan Gray off waivers from the Miami Marlins.) |
| | SS | Sent to Minors (The Oakland Athletics optioned INF Darell Hernaiz to the minors.) |
| | P | Recalled From Minors Rehab (The Oakland Athletics recalled LHP Hogan Harris from the minors.) |
| | P | Sent to Minors (The Oakland Athletics optioned RHP Dany Jiménez to the minors.) |
| | P | Signed (The Oakland Athletics signed RHP Lincoln Henzman.) |
| | P | Placed on 15-Day IL (The Oakland Athletics placed LHP Scott Alexander on the 15-day injured list.) |
| | P | Recalled From Minors Rehab (The Oakland Athletics selected the contract of RHP J.T. Ginn from the minors.) |
| | P | Signed (The Oakland Athletics signed RHP Austin Pruitt to a minor league contract.) |
| | P | Placed on 15-Day IL (The Oakland Athletics placed RHP Austin Adams on the 15-day injured list with a forearm injury.) |
| | P | Activated (The Oakland Athletics activated RHP Dany Jiménez from the 15-day injured list.) |
| | 3B | Sent to Minors (The Oakland Athletics optioned INF Armando Alvarez to the minors.) |
| | LF | Activated (The Oakland Athletics activated OF Brent Rooker from the Paternity List.) |
| | P | Sent to Minors (The Oakland Athletics optioned RHP Will Klein to the minors.) |
| | P | Recalled From Minors Rehab (The Oakland Athletics selected the contract of RHP Grant Holman from the minors.) |
| | LF | Placed on Paternity Leave List (The Oakland Athletics placed OF Brent Rooker on the Paternity Leave list.) |
| | P | Sent to Minors (The Oakland Athletics sent LHP Kyle Muller outright to the minors.) |
| | 3B | Recalled From Minors Rehab (The Oakland Athletics recalled INF Armando Alvarez from the minors.) |
| | P | Recalled From Minors Rehab (The Oakland Athletics recalled RHP Joe Boyle from the minors.) |
| | P | Designated for Assignment (The Oakland Athletics designated LHP Kyle Muller for assignment.) |
| | 3B | Sent to Minors (The Oakland Athletics optioned INF Armando Alvarez to the minors.) |
| | LF | Activated (The Oakland Athletics activated OF Seth Brown from Paternity Leave list.) |
| | P | Sent to Minors (The Oakland Athletics sent RHP Gerardo Reyes outright to the minors.) |
| | 3B | Recalled From Minors Rehab (The Oakland Athletics recalled INF Armando Alvarez from the minors.) |
| | P | Designated for Assignment (The Oakland Athletics designated RHP Gerardo Reyes for assignment.) |
| | LF | Placed on Paternity Leave List (The Oakland Athletics placed OF Seth Brown on the Paternity Leave list.) |
| | P | Activated (The Oakland Athletics activated RHP Mason Miller from the 15-day injured list.) |
| | 3B | Sent to Minors (The Oakland Athletics optioned INF Brett Harris to the minors.) |
| | P | Placed on 60-Day IL (The Oakland Athletics transferred RHP Luis Medina to the 60-day injured list.) |
| | SS | Activated (The Oakland Athletics activated INF Darell Hernaiz from the 60-day injured list.) |
| | P | Activated (The Oakland Athletics recalled RHP Will Klein from the minors.) |
| | P | Traded (The New York Mets traded RHP Kade Morris to the Oakland Athletics.) From |
| | P | Traded (The Kansas City Royals traded RHP Mason Barnett to the Oakland Athletics.) From |
| | P | Traded (The Oakland Athletics traded RHP Lucas Erceg to the Kansas City Royals.) To |
| | P | Traded (The Kansas City Royals traded RHP Will Klein to the Oakland Athletics.) From |
| | P | Recalled From Minors Rehab (The Oakland Athletics selected the contract of RHP Gerardo Reyes from the minors.) |
| | RF | Traded (The Kansas City Royals traded OF Jared Dickey to the Oakland Athletics.) From |
| | P | Traded (The Oakland Athletics traded RHP Paul Blackburn to the New York Mets.) To |
| | P | Sent to Minors (The Oakland Athletics optioned LHP Hogan Harris to the minors.) |
| | P | Activated (The Oakland’s Athletics activated RHP Paul Blackburn from the 60-day injured list.) |
| | CF | Signed (The Oakland Athletics signed draft pick OF Cameron Leary.) |
| | P | Signed (The Oakland Athletics signed draft pick RHP Kyle Robinson.) |
| | LF | Signed (The Oakland Athletics signed draft pick OF Rodney Green.) |
| | P | Signed (The Oakland Athletics signed draft pick RHP Sam Stuhr.) |
| | C | Signed (The Oakland Athletics signed draft pick INF Davis Diaz.) |
| | SS | Signed (The Oakland Athletics signed draft pick INF Josh Kuroda-Grauer.) |
| | P | Placed on 15-Day IL (The Oakland Athletics placed RHP Mason Miller on the 15-day injured list.) |
| | 3B | Signed (The Oakland Athletics signed draft pick INF Jared Sprague-Lott.) |
| | P | Signed (The Oakland Athletics signed draft pick LHP Gage Jump.) |
| | C | Signed (The Oakland Athletics signed draft pick C Dylan Fien.) |
| | P | Activated (The Oakland Athletics activated RHP Ross Stripling from the 15-day injured list.) |
| | P | Signed (The Oakland Athletics signed draft pick RHP Josiah Romeo.) |
| | 3B | Signed (The Oakland Athletics signed draft pick INF Tommy White.) |
| | 1B | Signed (The Oakland Athletics signed draft pick INF Nick Kurtz.) |
| | SS | Placed on 10-Day IL (The Oakland Athletics placed INF Jacob Wilson on the 10-day injured list.) |
| | 3B | Activated (The Oakland Athletics activated INF Abraham Toro from the 10-day injured list.) |
| | SS | Signed (The Oakland Athletics signed draft pick INF Ali Camarillo.) |
| | SS | Recalled From Minors Rehab (The Oakland Athletics selected the contract of INF Jacob Wilson from the minors.) |
| | 3B | Sent to Minors (The Oakland Athletics optioned INF Armando Alvarez to the minors.) |
| | CF | Drafted (The Oakland Athletics drafted OF Cameron Leary in the 10th round of the MLB draft.) |
| | P | Drafted (The Oakland Athletics selected RHP Kyle Robinson in the 11th round of the 2024 MLB draft.) |
| | P | Drafted (The Oakland Athletics drafted RHP Josiah Romeo in the sixth round of the mlb draft.) |
| | 3B | Drafted (The Oakland Athletics selected INF Jared Sprague-Lott in the ninth round of the 2024 MLB draft.) |
| | LF | Released (The Oakland Athletics released OF Lazaro Armenteros.) |
| | SS | Drafted (The Oakland Athletics selected INF Ali Camarillo in the 12th round of the 2024 MLB draft.) |
| | C | Drafted (The Oakland Athletics drafted C Dylan Fien in the seventh round in the mlb draft.) |
| | LF | Drafted (The Oakland Athletics drafted OF Rodney Green in the fourth round of the mlb draft.) |
| | P | Drafted (The Oakland Athletics drafted RHP Sam Stuhr in the fifth round of the mlb draft.) |
| | SS | Drafted (The Oakland Athletics drafted INF Josh Kuroda-Grauer in the third round of the mlb draft.) |
| | 1B | Drafted (The Oakland Athletics selected INF Nick Kurtz in the first round of the MLB Draft.) |
| | 3B | Drafted (The Oakland Athletics selected IF Tommy White in the second round of the MLB Draft.) |
| | P | Placed on 15-Day IL (The Oakland Athletics placed RHP Luis Medina on the 15-day injured list.) |
| | P | Recalled From Minors Rehab (The Oakland Athletics recalled RHP Michel Otanez from the minors.) |
| | P | Activated (TheOakland Athletics activated SP Hogan Harris from the paternity list.) |
| | P | Sent to Minors (The Oakland Athletics optioned RHP Michel Otanez to the minors.) |
| | LF | Recalled From Minors Rehab (The Oakland Athletics selected the contract of OF Seth Brown from the minors.) |
| | 1B | Placed on 10-Day IL (The Oakland Athletics placed INF Tyler Soderstrom on the 10-day injured list with an undisclosed injury.) |
| | P | Recalled From Minors Rehab (The Oakland Athletics recalled RHP Michel Otanez from the minors.) |
| | P | Placed on Paternity Leave List (The Oakland Athletics placed LHP Hogan Harris on the Paternity Leave list.) |
| | P | Sent to Minors (The Oakland Athletics optioned RP Jack O'Loughlin to the minors.) |
| | P | Activated (The Oakland Athletics activated LHP Kyle Muller from the 15-day injured list.) |
| | SS | Released (The Oakland Athletics released INF Aledmys Díaz.) |
| | P | Released (The Oakland Athletics released LHP Sean Newcomb.) |
| | 3B | Recalled From Minors Rehab (The Oakland Athletics recalled INF Brett Harris from the minors.) |
| | P | Recalled From Minors Rehab (The Oakland Athletics recalled RHP Tyler Ferguson from the minors.) |
| | P | Designated for Assignment (The Oakland Athletics designated LHP Sean Newcomb for assignment.) |
| | SS | Designated for Assignment (The Oakland Athletics designated INF Aledmys Díaz for assignment.) |
| | P | Sent to Minors (The Oakland Athletics outrighted RHP Aaron Brooks to the minors.) |
| | P | Designated for Assignment (The Oakland Athletics designated RHP Aaron Brooks for assignment.) |
| | P | Recalled From Minors Rehab (The Oakland Athletics recalled LHP Jack O'Loughlin from the minors.) |
| | 1B | Traded (The Oakland Athletics traded INF J.D. Davis to the New York Yankees.) To |
| | P | Placed on 15-Day IL (The Oakland Athletics placed RHP Dany Jiménez on the 15-day injured list with a strained left oblique, retroactive to June 20.) |
| | P | Recalled From Minors Rehab (The Oakland Athletics selected the contract of RHP Aaron Brooks from the minors.) |
| | P | Declared Free Agency (Oakland Athletics RHP Vinny Nittoli cleared waivers and declared free agency. ) |
| | 3B | Traded (The New York Yankees traded INF Jordan Groshans to the Oakland Athletics.) From |
| | 3B | Placed on 10-Day IL (The Oakland Athletics placed INF Abraham Toro on the 10-day injured list with a hamstring strain.) |
| | 3B | Recalled From Minors Rehab (The Oakland Athletics selected the contract of INF Armando Alvarez from the minors.) |
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