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ATH · 2026 transactions
Data through 2026-10-03
| Date | Player | Type | Detail |
|---|---|---|---|
| Sep 22 | J.T. Ginn | Status Change | Athletics transferred RHP J.T. Ginn from the 15-day injured list to the 60-day injured list. Right elbow impingement. |
| Sep 22 | Joshua Kuroda-Grauer | Status Change | Athletics activated 3B Joshua Kuroda-Grauer from the 60-day injured list. |
| Sep 22 | Max Muncy | Status Change | Athletics placed 3B Max Muncy on the 10-day injured list. Left knee chondromalacia. |
| Sep 18 | Joshua Kuroda-Grauer | Assigned | Athletics sent 3B Joshua Kuroda-Grauer on a rehab assignment to Las Vegas Aviators. |
| Sep 18 | Joe Rock | Optioned | Athletics optioned LHP Joe Rock to Las Vegas Aviators. |
| Sep 18 | Mason Barnett | Recalled | Athletics recalled RHP Mason Barnett from Las Vegas Aviators. |
| Sep 16 | Zack Gelof | Number Change | 3B Zack Gelof changed number to 20. |
| Sep 16 | Carlos Cortes | Number Change | RF Carlos Cortes changed number to 26. |
| Sep 16 | Lawrence Butler | Number Change | RF Lawrence Butler changed number to 4. |
| Sep 15 | Joe Rock | Status Change | Athletics activated LHP Joe Rock. |
| Sep 15 | Carlos Cortes | Number Change | RF Carlos Cortes changed number to 21. |
| Sep 15 | Lawrence Butler | Number Change | RF Lawrence Butler changed number to 21. |
| Sep 15 | Zack Gelof | Number Change | 3B Zack Gelof changed number to 21. |
| Sep 15 | Gage Jump | Status Change | Athletics placed LHP Gage Jump on the 15-day injured list retroactive to September 13, 2026. Left shoulder impingement. |
| Sep 15 | Joe Rock | Recalled | Athletics recalled LHP Joe Rock from Las Vegas Aviators. |
| Sep 13 | Taylor Rashi | Outrighted | Athletics sent RHP Taylor Rashi outright to Las Vegas Aviators. |
| Sep 13 | Joey Estes | Optioned | Athletics optioned RHP Joey Estes to Las Vegas Aviators. |
| Sep 13 | Drew Rom | Recalled | Athletics recalled LHP Drew Rom from Las Vegas Aviators. |
| Sep 12 | Shea Langeliers | Status Change | Athletics activated C Shea Langeliers from the 10-day injured list. |
| Sep 12 | Darell Hernaiz | Optioned | Athletics optioned SS Darell Hernaiz to Las Vegas Aviators. |
| Sep 11 | Taylor Rashi | Designated for Assignment | Athletics designated RHP Taylor Rashi for assignment. |
| Sep 11 | Hunter Bigge | Claimed Off Waivers | Athletics claimed RHP Hunter Bigge off waivers from Tampa Bay Rays. |
| Sep 10 | Shea Langeliers | Assigned | Athletics sent C Shea Langeliers on a rehab assignment to Las Vegas Aviators. |
| Sep 8 | José Suarez | Released | Athletics released LHP José Suarez. |
| Sep 5 | J.T. Ginn | Status Change | Athletics placed RHP J.T. Ginn on the 15-day injured list. Right elbow impingement. |
| Sep 5 | Jack Perkins | Recalled | Athletics recalled RHP Jack Perkins from Las Vegas Aviators. |
| Sep 5 | Kade Morris | Optioned | Athletics optioned RHP Kade Morris to Las Vegas Aviators. |
| Sep 5 | Seth Johnson | Recalled | Athletics recalled RHP Seth Johnson from Las Vegas Aviators. |
| Sep 4 | Jack Perkins | Optioned | Athletics optioned RHP Jack Perkins to Las Vegas Aviators. |
| Sep 4 | Joey Estes | Recalled | Athletics recalled RHP Joey Estes from Las Vegas Aviators. |
| Sep 2 | José Suarez | Designated for Assignment | Athletics designated LHP José Suarez for assignment. |
| Sep 2 | Geoff Hartlieb | Selected | Athletics selected the contract of RHP Geoff Hartlieb from Las Vegas Aviators. |
| Sep 1 | Yunior Tur | Recalled | Athletics recalled RHP Yunior Tur from Las Vegas Aviators. |
| Sep 1 | Denzel Clarke | Status Change | Athletics activated CF Denzel Clarke from the 60-day injured list. |
| Sep 1 | Joshua Kuroda-Grauer | Status Change | Athletics transferred 3B Joshua Kuroda-Grauer from the 10-day injured list to the 60-day injured list. Ruptured testicle surgery. |
| Aug 28 | José Suarez | Status Change | Athletics activated LHP José Suarez from the 15-day injured list. |
| Aug 28 | Drew Rom | Optioned | Athletics optioned LHP Drew Rom to Las Vegas Aviators. |
| Aug 26 | Hayden Juenger | Optioned | Athletics optioned RHP Hayden Juenger to Las Vegas Aviators. |
| Aug 26 | Chris Roycroft | Status Change | Athletics activated RHP Chris Roycroft. |
| Aug 25 | Chris Roycroft | Claimed Off Waivers | Athletics claimed RHP Chris Roycroft off waivers from Tampa Bay Rays. |
| Aug 25 | Jacob Wilson | Status Change | Athletics transferred SS Jacob Wilson from the 10-day injured list to the 60-day injured list. Left shoulder subluxation. |
| Aug 21 | Johnathan Rodríguez | Claimed Off Waivers | Athletics claimed RF Johnathan Rodríguez off waivers from Pittsburgh Pirates. |
| Aug 21 | Michael Stefanic | Selected | Athletics selected the contract of 2B Michael Stefanic from Las Vegas Aviators. |
| Aug 21 | Kade Morris | Recalled | Athletics recalled RHP Kade Morris from Las Vegas Aviators. |
| Aug 21 | Taylor Rashi | Optioned | Athletics optioned RHP Taylor Rashi to Las Vegas Aviators. |
| Aug 21 | Nick Kurtz | Status Change | Athletics transferred 1B Nick Kurtz from the 10-day injured list to the 60-day injured list. Strained right thumb. |
| Aug 21 | Jacob Wilson | Status Change | Athletics placed SS Jacob Wilson on the 10-day injured list. Left shoulder subluxation. |
| Aug 19 | Jeffrey Springs | Status Change | Athletics activated LHP Jeffrey Springs from the 15-day injured list. |
| Aug 19 | Seth Johnson | Optioned | Athletics optioned RHP Seth Johnson to Las Vegas Aviators. |
| Aug 18 | Denzel Clarke | Assigned | Athletics sent CF Denzel Clarke on a rehab assignment to Las Vegas Aviators. |
| Aug 18 | Denzel Clarke | Assigned | Athletics sent CF Denzel Clarke on a rehab assignment to Las Vegas Aviators. |
| Aug 18 | Mason Barnett | Optioned | Athletics optioned RHP Mason Barnett to Las Vegas Aviators. |
| Aug 18 | Taylor Rashi | Recalled | Athletics recalled RHP Taylor Rashi from Las Vegas Aviators. |
| Aug 17 | Joe Rock | Optioned | Athletics optioned LHP Joe Rock to Las Vegas Aviators. |
| Aug 16 | Joe Rock | Claimed Off Waivers | Athletics claimed LHP Joe Rock off waivers from Chicago White Sox. |
| Aug 16 | Justin Sterner | Status Change | Athletics transferred RHP Justin Sterner from the 15-day injured list to the 60-day injured list. Right knee chondromalacia. |
| Aug 16 | Tyler Soderstrom | Status Change | Athletics placed LF Tyler Soderstrom on the 10-day injured list retroactive to August 15, 2026. Left hip impingement. |
| Aug 16 | Darell Hernaiz | Recalled | Athletics recalled SS Darell Hernaiz from Las Vegas Aviators. |
| Aug 15 | Jonathan Ornelas | Trade | Athletics traded SS Jonathan Ornelas to Milwaukee Brewers for cash. |
| Aug 14 | Jonathan Ornelas | Signed as Free Agent | Athletics signed free agent SS Jonathan Ornelas to a minor league contract. |
| Aug 14 | Jeffrey Springs | Assigned | Athletics sent LHP Jeffrey Springs on a rehab assignment to Stockton Ports. |
| Aug 12 | Jonathan Ornelas | Outrighted | Athletics sent SS Jonathan Ornelas outright to Las Vegas Aviators. |
| Aug 12 | Drew Rom | Status Change | Athletics activated LHP Drew Rom. |
| Aug 12 | Hayden Juenger | Recalled | Athletics recalled RHP Hayden Juenger from Las Vegas Aviators. |
| Aug 12 | Yunior Tur | Optioned | Athletics optioned RHP Yunior Tur to Las Vegas Aviators. |
| Aug 12 | José Suarez | Status Change | Athletics placed LHP José Suarez on the 15-day injured list. Right hip strain. |
| Aug 11 | Flasherming Ernesto | Signed as Free Agent | Athletics signed free agent RHP Flasherming Ernesto to a minor league contract. |
| Aug 11 | Drew Rom | Claimed Off Waivers | Athletics claimed LHP Drew Rom off waivers from Milwaukee Brewers. |
| Aug 10 | Jonathan Ornelas | Designated for Assignment | Athletics designated SS Jonathan Ornelas for assignment. |
| Aug 10 | Zack Gelof | Status Change | Athletics activated 3B Zack Gelof from the 10-day injured list. |
| Aug 9 | Taylor Rashi | Optioned | Athletics optioned RHP Taylor Rashi to Las Vegas Aviators. |
| Aug 9 | Taylor Rashi | Claimed Off Waivers | Athletics claimed RHP Taylor Rashi off waivers from Minnesota Twins. |
| Aug 8 | Hayden Juenger | Optioned | Athletics optioned RHP Hayden Juenger to Las Vegas Aviators. |
| Aug 8 | Yunior Tur | Recalled | Athletics recalled RHP Yunior Tur from Las Vegas Aviators. |
| Aug 7 | Matt Sauer | Signed as Free Agent | Athletics signed free agent RHP Matt Sauer to a minor league contract. |
| Aug 6 | Ben Bowden | Outrighted | Athletics sent LHP Ben Bowden outright to Las Vegas Aviators. |
| Aug 4 | Chen Zhong-Ao Zhuang | Outrighted | Athletics sent RHP Chen Zhong-Ao Zhuang outright to Las Vegas Aviators. |
| Aug 4 | Zack Gelof | Assigned | Athletics sent 3B Zack Gelof on a rehab assignment to Las Vegas Aviators. |
| Aug 4 | Connor Thomas | Claimed Off Waivers | Kansas City Royals claimed LHP Connor Thomas off waivers from Athletics. |
| Aug 4 | Seth Johnson | Status Change | Athletics activated RHP Seth Johnson. |
| Aug 4 | Chen Zhong-Ao Zhuang | Outrighted | Athletics sent RHP Chen Zhong-Ao Zhuang outright to Las Vegas Aviators. |
| Aug 4 | Max Muncy | Recalled | Athletics recalled 3B Max Muncy from Las Vegas Aviators. |
| Aug 4 | J.T. Ginn | Status Change | Athletics activated RHP J.T. Ginn from the 15-day injured list. |
| Aug 4 | Ben Bowden | Designated for Assignment | Athletics designated LHP Ben Bowden for assignment. |
| Aug 4 | Jeffrey Springs | Status Change | Athletics placed LHP Jeffrey Springs on the 15-day injured list retroactive to August 1, 2026. Right hip discomfort. |
| Aug 4 | Nick Kurtz | Status Change | Athletics placed 1B Nick Kurtz on the 10-day injured list retroactive to August 1, 2026. Strained right thumb. |
| Aug 3 | Cade Fujii | Signed as Free Agent | Athletics signed free agent SS Cade Fujii to a minor league contract. |
| Aug 3 | Colby Thomas | Trade | Philadelphia Phillies traded RHP Seth Johnson to Athletics for RF Colby Thomas. |
| Aug 1 | Connor Thomas | Designated for Assignment | Athletics designated LHP Connor Thomas for assignment. |
| Aug 1 | Ben Bowden | Selected | Athletics selected the contract of LHP Ben Bowden from Las Vegas Aviators. |
| Aug 1 | Luis Morales | Optioned | Athletics optioned RHP Luis Morales to Las Vegas Aviators. |
| Jul 31 | Connor Thomas | Optioned | Athletics optioned LHP Connor Thomas to Las Vegas Aviators. |
| Jul 31 | Colby Thomas | Optioned | Athletics optioned RF Colby Thomas to Las Vegas Aviators. |
| Jul 31 | Jonathan Ornelas | Selected | Athletics selected the contract of SS Jonathan Ornelas from Las Vegas Aviators. |
| Jul 31 | Chen Zhong-Ao Zhuang | Designated for Assignment | Athletics designated RHP Chen Zhong-Ao Zhuang for assignment. |
| Jul 30 | Mark Leiter Jr. | Status Change | Athletics transferred RHP Mark Leiter Jr. from the 15-day injured list to the 60-day injured list. Right hip impingement. |
| Jul 30 | Connor Thomas | Claimed Off Waivers | Athletics claimed LHP Connor Thomas off waivers from Atlanta Braves. |
| Jul 30 | Yelfi Garcia | Signed as Free Agent | Athletics signed free agent RHP Yelfi Garcia to a minor league contract. |
| Jul 29 | Geoff Hartlieb | Outrighted | Athletics sent RHP Geoff Hartlieb outright to Las Vegas Aviators. |
| Jul 28 | Max McGwire | Signed as Free Agent | Athletics signed free agent RHP Max McGwire to a minor league contract. |
| Jul 27 | Anthony Marnell IV | Signed | Athletics signed C Anthony Marnell IV. |
| Jul 27 | Bear Madliak | Signed | Athletics signed C Bear Madliak. |
| Jul 27 | Javier Gorostola | Signed | Athletics signed 3B Javier Gorostola. |
| Jul 27 | Tyler August | Signed | Athletics signed RHP Tyler August. |
| Jul 27 | Dylan O'Connell | Signed | Athletics signed OF Dylan O'Connell. |
| Jul 27 | Caden Sivrich | Signed | Athletics signed RHP Caden Sivrich. |
| Jul 27 | Evan Blanco | Signed | Athletics signed LHP Evan Blanco. |
| Jul 27 | Nathan Aceves | Signed | Athletics signed RHP Nathan Aceves. |
| Jul 27 | Javar Williams | Signed | Athletics signed OF Javar Williams. |
| Jul 27 | Dominic Mauro | Signed | Athletics signed RHP Dominic Mauro. |
| Jul 27 | Tanner Marsh | Signed | Athletics signed 2B Tanner Marsh. |
| Jul 27 | Aidan Weaver | Signed | Athletics signed RHP Aidan Weaver. |
| Jul 27 | David Rossow | Signed | Athletics signed RHP David Rossow. |
| Jul 27 | Alex Sosa | Signed | Athletics signed C Alex Sosa. |
| Jul 27 | Alex Hernandez | Signed | Athletics signed 3B Alex Hernandez. |
| Jul 27 | Roman Martin | Signed | Athletics signed SS Roman Martin. |
| Jul 27 | Jacob Dudan | Signed | Athletics signed RHP Jacob Dudan. |
| Jul 27 | Gabe Gaeckle | Signed | Athletics signed RHP Gabe Gaeckle. |
| Jul 27 | Mason Edwards | Signed | Athletics signed LHP Mason Edwards. |
| Jul 27 | James Whitman | Signed as Free Agent | Athletics signed free agent 1B James Whitman to a minor league contract. |
| Jul 27 | KJ White | Signed as Free Agent | Athletics signed free agent SS KJ White to a minor league contract. |
| Jul 27 | Mason Patel | Signed as Free Agent | Athletics signed free agent RHP Mason Patel to a minor league contract. |
| Jul 27 | Shintaro Inoue | Signed as Free Agent | Athletics signed free agent SS Shintaro Inoue to a minor league contract. |
| Jul 27 | Colin Fitzgerald | Signed as Free Agent | Athletics signed free agent RHP Colin Fitzgerald to a minor league contract. |
| Jul 27 | Max Aude | Signed as Free Agent | Athletics signed free agent C Max Aude to a minor league contract. |
| Jul 27 | Scott Blewett | Status Change | Athletics activated RHP Scott Blewett. |
| Jul 27 | Geoff Hartlieb | Designated for Assignment | Athletics designated RHP Geoff Hartlieb for assignment. |
| Jul 26 | Scott Blewett | Trade | St. Louis Cardinals traded RHP Scott Blewett to Athletics for cash. |
| Jul 26 | Shea Langeliers | Status Change | Athletics placed C Shea Langeliers on the 10-day injured list retroactive to July 25, 2026. Torn meniscus in right knee. |
| Jul 26 | Brian Serven | Recalled | Athletics recalled C Brian Serven from Las Vegas Aviators. |
| Jul 25 | Dallas Keuchel | Signed as Free Agent | Athletics signed free agent LHP Dallas Keuchel to a minor league contract. |
| Jul 25 | Nick Kurtz | Status Change | Athletics activated 1B Nick Kurtz from the 10-day injured list. |
| Jul 25 | Max Muncy | Optioned | Athletics optioned 3B Max Muncy to Las Vegas Aviators. |
| Jul 24 | Jonathan Ornelas | Signed as Free Agent | Athletics signed free agent SS Jonathan Ornelas to a minor league contract. |
| Jul 24 | Luis Morales | Recalled | Athletics recalled RHP Luis Morales from Las Vegas Aviators. |
| Jul 23 | Drew Burress | Signed | Athletics signed OF Drew Burress. |
| Jul 23 | Yunior Tur | Optioned | Athletics optioned RHP Yunior Tur to Las Vegas Aviators. |
| Jul 22 | J.T. Ginn | Status Change | Athletics placed RHP J.T. Ginn on the 15-day injured list retroactive to July 18, 2026. Right middle finger blister. |
| Jul 22 | Mason Barnett | Recalled | Athletics recalled RHP Mason Barnett from Las Vegas Aviators. |
| Jul 21 | Joshua Kuroda-Grauer | Status Change | Athletics placed 3B Joshua Kuroda-Grauer on the 10-day injured list. Ruptured testicle surgery. |
| Jul 21 | Mark Leiter Jr. | Status Change | Athletics placed RHP Mark Leiter Jr. on the 15-day injured list retroactive to July 19, 2026. Right hip impingement. |
| Jul 21 | Max Muncy | Recalled | Athletics recalled 3B Max Muncy from Las Vegas Aviators. |
| Jul 21 | Hayden Juenger | Recalled | Athletics recalled RHP Hayden Juenger from Las Vegas Aviators. |
| Jul 20 | Alex Fernandes | Acquired | Athletics acquired OF Alex Fernandes from the Glacier Range Riders of the Pioneer League. |
| Jul 20 | Joey Meneses | Outrighted | Athletics sent 1B Joey Meneses outright to Las Vegas Aviators. |
| Jul 18 | Justin Sterner | Status Change | Athletics placed RHP Justin Sterner on the 15-day injured list. Right knee chondromalacia. |
| Jul 18 | Geoff Hartlieb | Selected | Athletics selected the contract of RHP Geoff Hartlieb from Las Vegas Aviators. |
| Jul 18 | Aiden Moffett | Trade | Athletics traded RHP Aaron Civale to Chicago Cubs for RHP Aiden Moffett. |
| Jul 18 | Joey Meneses | Designated for Assignment | Athletics designated 1B Joey Meneses for assignment. |
| Jul 17 | Tommy White | Selected | Athletics selected the contract of 3B Tommy White from Las Vegas Aviators. |
| Jul 17 | Brent Rooker | Status Change | Athletics transferred DH Brent Rooker from the 10-day injured list to the 60-day injured list. Bone bruise in left knee. |
| Jul 15 | Donovan Walton | Status Change | Athletics activated 2B Donovan Walton. |
| Jul 15 | Yunior Tur | Selected | Athletics selected the contract of RHP Yunior Tur from Las Vegas Aviators. |
| Jul 15 | Joey Meneses | Optioned | Athletics optioned 1B Joey Meneses to Las Vegas Aviators. |
| Jul 15 | Brady Basso | Recalled | Athletics recalled LHP Brady Basso from Las Vegas Aviators. |
| Jul 15 | Brian Serven | Optioned | Athletics optioned C Brian Serven to Las Vegas Aviators. |
| Jul 15 | Mason Barnett | Optioned | Athletics optioned RHP Mason Barnett to Las Vegas Aviators. |
| Jul 15 | Aaron Civale | Designated for Assignment | Athletics designated RHP Aaron Civale for assignment. |
| Jul 15 | Donovan Walton | Status Change | Athletics activated 3B Donovan Walton. |
| Jul 12 | Donovan Walton | Claimed Off Waivers | Athletics claimed 3B Donovan Walton off waivers from Los Angeles Angels. |
| Jul 11 | Nick Kurtz | Status Change | Athletics placed 1B Nick Kurtz on the 10-day injured list retroactive to July 10, 2026. Right thumb capsule sprain. |
| Jul 11 | Brian Serven | Recalled | Athletics recalled C Brian Serven from Las Vegas Aviators. |
| Jul 10 | Nick Kurtz | Status Change | Athletics placed 1B Nick Kurtz on the 10-day injured list. Right thumb capsule sprain. |
| Jul 10 | Zack Gelof | Status Change | Athletics placed 3B Zack Gelof on the 10-day injured list. Right knee laceration. |
| Jul 10 | Joey Meneses | Recalled | Athletics recalled 1B Joey Meneses from Las Vegas Aviators. |
| Jul 8 | Max Muncy | Optioned | Athletics optioned 3B Max Muncy to Las Vegas Aviators. |
| Jul 8 | Tyler Soderstrom | Status Change | Athletics activated LF Tyler Soderstrom from the 10-day injured list. |
| Jul 7 | Brian Serven | Optioned | Athletics optioned C Brian Serven to Las Vegas Aviators. |
| Jul 7 | Kade Morris | Optioned | Athletics optioned RHP Kade Morris to Las Vegas Aviators. |
| Jul 7 | Jacob Lopez | Recalled | Athletics recalled LHP Jacob Lopez from Las Vegas Aviators. |
| Jul 7 | Jacob Wilson | Status Change | Athletics activated SS Jacob Wilson from the 10-day injured list. |
| Jul 6 | Kade Morris | Optioned | Athletics optioned RHP Kade Morris to Las Vegas Aviators. |
| Jul 5 | Michael Kelly | Released | Athletics released RHP Michael Kelly. |
| Jul 4 | Matt Krook | Claimed Off Waivers | Washington Nationals claimed LHP Matt Krook off waivers from Athletics. |
| Jul 4 | Geoff Hartlieb | Outrighted | Athletics sent RHP Geoff Hartlieb outright to Las Vegas Aviators. |
| Jul 4 | Zack Gelof | Status Change | Athletics activated 3B Zack Gelof from the 10-day injured list. |
| Jul 4 | Brian Serven | Selected | Athletics selected the contract of C Brian Serven from Las Vegas Aviators. |
| Jul 4 | Joey Meneses | Optioned | Athletics optioned 1B Joey Meneses to Las Vegas Aviators. |
| Jul 4 | Darell Hernaiz | Optioned | Athletics optioned SS Darell Hernaiz to Las Vegas Aviators. |
| Jul 3 | Geoff Hartlieb | Designated for Assignment | Athletics designated RHP Geoff Hartlieb for assignment. |
| Jul 3 | Mark Leiter Jr. | Status Change | Athletics activated RHP Mark Leiter Jr. from the 15-day injured list. |
| Jul 2 | Matt Krook | Designated for Assignment | Athletics designated LHP Matt Krook for assignment. |
| Jul 2 | José Suarez | Status Change | Athletics activated LHP José Suarez from the paternity list. |
| Jul 1 | Ben Hansen | Trade | Athletics traded 3B Brett Harris to Boston Red Sox for RHP Ben Hansen. |
| Jun 30 | Jack Winkler | Signed as Free Agent | Athletics signed free agent 2B Jack Winkler to a minor league contract. |
| Jun 29 | Joshua Kuroda-Grauer | Selected | Athletics selected the contract of SS Joshua Kuroda-Grauer from Las Vegas Aviators. |
| Jun 29 | Kade Morris | Recalled | Athletics recalled RHP Kade Morris from Las Vegas Aviators. |
| Jun 29 | Darell Hernaiz | Recalled | Athletics recalled SS Darell Hernaiz from Las Vegas Aviators. |
| Jun 29 | José Suarez | Status Change | Athletics placed LHP José Suarez on the paternity list. |
| Jun 29 | Jacob Wilson | Status Change | Athletics placed SS Jacob Wilson on the 10-day injured list retroactive to June 26, 2026. Right thumb inflammation. |
| Jun 29 | Tyler Soderstrom | Status Change | Athletics placed LF Tyler Soderstrom on the 10-day injured list retroactive to June 28, 2026. Left hip impingement. |
| Jun 29 | Michael Kelly | Designated for Assignment | Athletics designated RHP Michael Kelly for assignment. |
| Jun 27 | Hayden Juenger | Optioned | Athletics optioned RHP Hayden Juenger to Las Vegas Aviators. |
| Jun 27 | Hayden Juenger | Trade | Toronto Blue Jays traded RHP Hayden Juenger to Athletics for C Owen Carapellotti. |
| Jun 27 | Brett Harris | Designated for Assignment | Athletics designated 3B Brett Harris for assignment. |
| Jun 25 | Zack Gelof | Status Change | Athletics placed 3B Zack Gelof on the 10-day injured list retroactive to June 24, 2026. Right hand contusion. |
| Jun 25 | Alika Williams | Recalled | Athletics recalled SS Alika Williams from Las Vegas Aviators. |
| Jun 24 | Scott Barlow | Released | Athletics released RHP Scott Barlow. |
| Jun 23 | Jake Reinisch | Acquired | Athletics acquired OF Jake Reinisch from the Tri-City ValleyCats of the Frontier League. |
| Jun 21 | Luis Severino | Status Change | Athletics transferred RHP Luis Severino from the 15-day injured list to the 60-day injured list. Right shoulder strain. |
| Jun 21 | Scott Barlow | Designated for Assignment | Athletics designated RHP Scott Barlow for assignment. |
| Jun 21 | Alika Williams | Optioned | Athletics optioned SS Alika Williams to Las Vegas Aviators. |
| Jun 21 | Matt Krook | Selected | Athletics selected the contract of LHP Matt Krook from Las Vegas Aviators. |
| Jun 21 | Joey Meneses | Selected | Athletics selected the contract of 1B Joey Meneses from Las Vegas Aviators. |
| Jun 20 | Geoff Hartlieb | Selected | Athletics selected the contract of RHP Geoff Hartlieb from Las Vegas Aviators. |
| Jun 20 | Mark Leiter Jr. | Status Change | Athletics placed RHP Mark Leiter Jr. on the 15-day injured list retroactive to June 18, 2026. Right hip impingement. |
| Jun 19 | Andrew Bash | Signed as Free Agent | Athletics signed free agent RHP Andrew Bash to a minor league contract. |
| Jun 17 | Aaron Civale | Status Change | Athletics activated RHP Aaron Civale from the 15-day injured list. |
| Jun 17 | Luis Morales | Optioned | Athletics optioned RHP Luis Morales to Las Vegas Aviators. |
| Jun 15 | Brady Basso | Optioned | Athletics optioned LHP Brady Basso to Las Vegas Aviators. |
| Jun 15 | Luis Morales | Recalled | Athletics recalled RHP Luis Morales from Las Vegas Aviators. |
| Jun 14 | Joey Estes | Optioned | Athletics optioned RHP Joey Estes to Las Vegas Aviators. |
| Jun 14 | Brady Basso | Recalled | Athletics recalled LHP Brady Basso from Las Vegas Aviators. |
| Jun 12 | Brent Rooker | Status Change | Athletics placed DH Brent Rooker on the 10-day injured list retroactive to June 9, 2026. Bone bruise in left knee. |
| Jun 12 | Jacob Wilson | Status Change | Athletics activated SS Jacob Wilson from the 10-day injured list. |
| Jun 11 | Aaron Civale | Assigned | Athletics sent RHP Aaron Civale on a rehab assignment to Las Vegas Aviators. |
| Jun 11 | Aaron Civale | Assigned | Athletics sent RHP Aaron Civale on a rehab assignment to Las Vegas Aviators. |
| Jun 9 | Kade Morris | Optioned | Athletics optioned RHP Kade Morris to Las Vegas Aviators. |
| Jun 9 | Joey Estes | Recalled | Athletics recalled RHP Joey Estes from Las Vegas Aviators. |
| Jun 9 | Kenny Fermin | Signed as Free Agent | Athletics signed free agent SS Kenny Fermin to a minor league contract. |
| Jun 8 | Darell Hernaiz | Optioned | Athletics optioned SS Darell Hernaiz to Las Vegas Aviators. |
| Jun 8 | Max Muncy | Status Change | Athletics activated 3B Max Muncy from the 10-day injured list. |
| Jun 6 | Jacob Wilson | Assigned | Athletics sent SS Jacob Wilson on a rehab assignment to Las Vegas Aviators. |
| Jun 6 | Joel Kuhnel | Trade | Athletics traded RHP Joel Kuhnel to Milwaukee Brewers for cash. |
| Jun 6 | Jacob Wilson | Assigned | Athletics sent SS Jacob Wilson on a rehab assignment to Las Vegas Aviators. |
| Jun 5 | Joel Kuhnel | Designated for Assignment | Athletics designated RHP Joel Kuhnel for assignment. |
| Jun 5 | Elvis Alvarado | Recalled | Athletics recalled RHP Elvis Alvarado from Las Vegas Aviators. |
| Jun 2 | Luis Guevara | Signed as Free Agent | Athletics signed free agent RHP Luis Guevara to a minor league contract. |
| Jun 2 | Kade Morris | Selected | Athletics selected the contract of RHP Kade Morris from Las Vegas Aviators. |
| Jun 2 | Mason Barnett | Recalled | Athletics recalled RHP Mason Barnett from Las Vegas Aviators. |
| Jun 2 | Jacob Lopez | Optioned | Athletics optioned LHP Jacob Lopez to Las Vegas Aviators. |
| Jun 2 | Michael Kelly | Optioned | Athletics optioned RHP Michael Kelly to Las Vegas Aviators. |
| Jun 2 | Brooks Kriske | Status Change | Athletics transferred RHP Brooks Kriske from the 15-day injured list to the 60-day injured list. Right shoulder impingement. |
| May 30 | Max Muncy | Assigned | Athletics sent 3B Max Muncy on a rehab assignment to Las Vegas Aviators. |
| May 30 | Luis Severino | Status Change | Athletics placed RHP Luis Severino on the 15-day injured list. Right should strain. |
| May 30 | Max Muncy | Assigned | Athletics sent 3B Max Muncy on a rehab assignment to Las Vegas Aviators. |
| May 30 | Luis Severino | Status Change | Athletics placed RHP Luis Severino on the 15-day injured list. Right arm discomfort. |
| May 30 | Michael Kelly | Recalled | Athletics recalled RHP Michael Kelly from Las Vegas Aviators. |
| May 26 | Gage Jump | Selected | Athletics selected the contract of LHP Gage Jump from Las Vegas Aviators. |
| May 26 | Aaron Civale | Status Change | Athletics placed RHP Aaron Civale on the 15-day injured list. Right shoulder tendinits. |
| May 26 | Denzel Clarke | Status Change | Athletics placed CF Denzel Clarke on the 60-day injured list. Mid foot bone bruise in right foot. |
| May 22 | Devin Kirby-Williams | Signed | Athletics signed RHP Devin Kirby. |
| May 20 | Michael Stefanic | Signed as Free Agent | Athletics signed free agent 2B Michael Stefanic to a minor league contract. |
| May 19 | Denzel Clarke | Assigned | Athletics sent CF Denzel Clarke on a rehab assignment to Las Vegas Aviators. |
| May 19 | Jordan Key | Signed as Free Agent | Athletics signed free agent RHP Jordan Key to a minor league contract. |
| May 19 | Manuel Fernandez | Signed as Free Agent | Athletics signed free agent RHP Manuel Fernandez to a minor league contract. |
| May 19 | Denzel Clarke | Assigned | Athletics sent CF Denzel Clarke on a rehab assignment to Las Vegas Aviators. |
| May 18 | Michael Stefanic | Outrighted | Athletics sent 2B Michael Stefanic outright to Las Vegas Aviators. |
| May 16 | Denzel Clarke | Assigned | Athletics sent CF Denzel Clarke on a rehab assignment to Stockton Ports. |
| May 16 | Denzel Clarke | Assigned | Athletics sent CF Denzel Clarke on a rehab assignment to Stockton Ports. |
| May 16 | Junior Perez | Trade | Athletics traded CF Junior Perez to Chicago White Sox for LHP Jackson Nove. |
| May 16 | Michael Stefanic | Designated for Assignment | Athletics designated 2B Michael Stefanic for assignment. |
| May 16 | Alika Williams | Trade | Athletics traded RHP Kyle Robinson to Pittsburgh Pirates for 2B Alika Williams. |
| May 15 | Mason Barnett | Optioned | Athletics optioned RHP Mason Barnett to Las Vegas Aviators. |
| May 15 | José Suarez | Status Change | Athletics activated LHP José Suarez. |
| May 15 | — | Trade | Athletics traded RHP Eduarniel Núñez to Baltimore Orioles for cash. |
| May 14 | Eduarniel Núñez | Status Change | RHP Eduarniel Núñez roster status changed by Athletics. |
| May 14 | — | Trade | Seattle Mariners traded LHP José Suarez to Athletics for cash. |
| May 14 | Junior Perez | Designated for Assignment | Athletics designated CF Junior Perez for assignment. |
| May 13 | Mason Barnett | Recalled | Athletics recalled RHP Mason Barnett from Las Vegas Aviators. |
| May 13 | Brooks Kriske | Status Change | Athletics placed RHP Brooks Kriske on the 15-day injured list. Right shoulder impingement. |
| May 12 | Jacob Wilson | Status Change | Athletics placed SS Jacob Wilson on the 10-day injured list retroactive to May 11, 2026. Left shoulder dislocation. |
| May 12 | Michael Stefanic | Selected | Athletics selected the contract of 2B Michael Stefanic from Las Vegas Aviators. |
| May 12 | Henry Bolte | Selected | Athletics selected the contract of RF Henry Bolte from Las Vegas Aviators. |
| May 12 | Brett Harris | Optioned | Athletics optioned 3B Brett Harris to Las Vegas Aviators. |
| May 12 | Austin Wynns | Released | Athletics released C Austin Wynns. |
| May 12 | Eduarniel Núñez | Designated for Assignment | Athletics designated RHP Eduarniel Núñez for assignment. |
| May 7 | Tyler Ferguson | Trade | Athletics traded RHP Tyler Ferguson to Chicago Cubs. |
| May 7 | Shea Langeliers | Status Change | Athletics activated C Shea Langeliers from the paternity list. |
| May 7 | Austin Wynns | Designated for Assignment | Athletics designated C Austin Wynns for assignment. |
| May 6 | Tyler Ferguson | Optioned | Athletics optioned RHP Tyler Ferguson to Las Vegas Aviators. |
| May 6 | Brooks Kriske | Selected | Athletics selected the contract of RHP Brooks Kriske from Las Vegas Aviators. |
| May 4 | Shea Langeliers | Status Change | Athletics placed C Shea Langeliers on the paternity list. |
| May 4 | — | Trade | Atlanta Braves traded C Jonah Heim to Athletics for cash. |
| May 3 | Luis Morales | Optioned | Athletics optioned RHP Luis Morales to Las Vegas Aviators. |
| May 3 | Tyler Ferguson | Recalled | Athletics recalled RHP Tyler Ferguson from Las Vegas Aviators. |
| May 2 | Brady Basso | Optioned | Athletics optioned LHP Brady Basso to Las Vegas Aviators. |
| May 2 | Luis Morales | Recalled | Athletics recalled RHP Luis Morales from Las Vegas Aviators. |
| Apr 30 | Andy Ibáñez | Claimed Off Waivers | New York Mets claimed 2B Andy Ibáñez off waivers from Athletics. |
| Apr 28 | Brett Harris | Recalled | Athletics recalled 3B Brett Harris from Las Vegas Aviators. |
| Apr 28 | Max Muncy | Status Change | Athletics placed 3B Max Muncy on the 10-day injured list retroactive to April 26, 2026. Left fifth metacarpal fracture. |
| Apr 26 | Brent Rooker | Status Change | Athletics activated DH Brent Rooker from the 10-day injured list. |
| Apr 26 | Brent Rooker | Status Change | Athletics activated RF Brent Rooker from the 10-day injured list. |
| Apr 26 | Andy Ibáñez | Designated for Assignment | Athletics designated 3B Andy Ibáñez for assignment. |
| Apr 22 | Denzel Clarke | Status Change | Athletics placed CF Denzel Clarke on the 10-day injured list. Mid foot bone bruise in right foot. |
| Apr 22 | Colby Thomas | Recalled | Athletics recalled RF Colby Thomas from Las Vegas Aviators. |
| Apr 20 | Mason Barnett | Optioned | Athletics optioned RHP Mason Barnett to Las Vegas Aviators. |
| Apr 20 | Brady Basso | Recalled | Athletics recalled LHP Brady Basso from Las Vegas Aviators. |
| Apr 18 | Elvis Alvarado | Optioned | Athletics optioned RHP Elvis Alvarado to Las Vegas Aviators. |
| Apr 18 | Mason Barnett | Recalled | Athletics recalled RHP Mason Barnett from Las Vegas Aviators. |
| Apr 16 | Darell Hernaiz | Status Change | Athletics activated SS Darell Hernaiz. |
| Apr 16 | Jacob Wilson | Status Change | Athletics activated SS Jacob Wilson. |
| Apr 16 | Elvis Alvarado | Number Change | RHP Elvis Alvarado changed number to 37. |
| Apr 16 | Scott Barlow | Number Change | RHP Scott Barlow changed number to 58. |
| Apr 16 | Aaron Civale | Number Change | RHP Aaron Civale changed number to 45. |
| Apr 16 | Carlos Cortes | Number Change | LF Carlos Cortes changed number to 26. |
| Apr 16 | Andy Ibáñez | Number Change | 3B Andy Ibáñez changed number to 77. |
| Apr 16 | Joel Kuhnel | Number Change | RHP Joel Kuhnel changed number to 47. |
| Apr 16 | Nick Kurtz | Number Change | 1B Nick Kurtz changed number to 16. |
| Apr 16 | Denzel Clarke | Number Change | CF Denzel Clarke changed number to 1. |
| Apr 16 | Jack Perkins | Number Change | RHP Jack Perkins changed number to 50. |
| Apr 16 | Max Muncy | Number Change | 3B Max Muncy changed number to 3. |
| Apr 16 | Jeff McNeil | Number Change | 2B Jeff McNeil changed number to 22. |
| Apr 16 | Jacob Lopez | Number Change | LHP Jacob Lopez changed number to 57. |
| Apr 16 | Mark Leiter Jr. | Number Change | RHP Mark Leiter Jr. changed number to 38. |
| Apr 16 | Luis Severino | Number Change | RHP Luis Severino changed number to 40. |
| Apr 16 | Justin Sterner | Number Change | RHP Justin Sterner changed number to 60. |
| Apr 16 | Austin Wynns | Number Change | C Austin Wynns changed number to 29. |
| Apr 16 | Jeffrey Springs | Number Change | LHP Jeffrey Springs changed number to 59. |
| Apr 16 | Lawrence Butler | Number Change | RF Lawrence Butler changed number to 4. |
| Apr 16 | Zack Gelof | Number Change | 2B Zack Gelof changed number to 20. |
| Apr 16 | J.T. Ginn | Number Change | RHP J.T. Ginn changed number to 35. |
| Apr 16 | Luis Medina | Number Change | RHP Luis Medina changed number to 46. |
| Apr 16 | Shea Langeliers | Number Change | C Shea Langeliers changed number to 23. |
| Apr 16 | Hogan Harris | Number Change | LHP Hogan Harris changed number to 36. |
| Apr 16 | Darell Hernaiz | Number Change | 3B Darell Hernaiz changed number to 2. |
| Apr 16 | Tyler Soderstrom | Number Change | LF Tyler Soderstrom changed number to 21. |
| Apr 16 | Jacob Wilson | Number Change | SS Jacob Wilson changed number to 5. |
| Apr 15 | Elvis Alvarado | Number Change | RHP Elvis Alvarado changed number to 42. |
| Apr 15 | Jeffrey Springs | Number Change | LHP Jeffrey Springs changed number to 42. |
| Apr 15 | Justin Sterner | Number Change | RHP Justin Sterner changed number to 42. |
| Apr 15 | Mark Leiter Jr. | Number Change | RHP Mark Leiter Jr. changed number to 42. |
| Apr 15 | Jeff McNeil | Number Change | 2B Jeff McNeil changed number to 42. |
| Apr 15 | Luis Severino | Number Change | RHP Luis Severino changed number to 42. |
| Apr 15 | Scott Barlow | Number Change | RHP Scott Barlow changed number to 42. |
| Apr 15 | Andy Ibáñez | Number Change | 3B Andy Ibáñez changed number to 42. |
| Apr 15 | Austin Wynns | Number Change | C Austin Wynns changed number to 42. |
| Apr 15 | Jack Perkins | Number Change | RHP Jack Perkins changed number to 42. |
| Apr 15 | Aaron Civale | Number Change | RHP Aaron Civale changed number to 42. |
| Apr 15 | Carlos Cortes | Number Change | LF Carlos Cortes changed number to 42. |
| Apr 15 | Nick Kurtz | Number Change | 1B Nick Kurtz changed number to 42. |
| Apr 15 | Joel Kuhnel | Number Change | RHP Joel Kuhnel changed number to 42. |
| Apr 15 | Jacob Lopez | Number Change | LHP Jacob Lopez changed number to 42. |
| Apr 15 | Denzel Clarke | Number Change | CF Denzel Clarke changed number to 42. |
| Apr 15 | Max Muncy | Number Change | 3B Max Muncy changed number to 42. |
| Apr 15 | Luis Medina | Number Change | RHP Luis Medina changed number to 42. |
| Apr 15 | Tyler Soderstrom | Number Change | LF Tyler Soderstrom changed number to 42. |
| Apr 15 | Hogan Harris | Number Change | LHP Hogan Harris changed number to 42. |
| Apr 15 | Lawrence Butler | Number Change | RF Lawrence Butler changed number to 42. |
| Apr 15 | Shea Langeliers | Number Change | C Shea Langeliers changed number to 42. |
| Apr 15 | Zack Gelof | Number Change | 2B Zack Gelof changed number to 42. |
| Apr 15 | Darell Hernaiz | Number Change | 3B Darell Hernaiz changed number to 42. |
| Apr 15 | J.T. Ginn | Number Change | RHP J.T. Ginn changed number to 42. |
| Apr 15 | Jacob Wilson | Number Change | SS Jacob Wilson changed number to 42. |
| Apr 10 | Brent Rooker | Status Change | Athletics placed RF Brent Rooker on the 10-day injured list. Oblique strain. |
| Apr 10 | Zack Gelof | Recalled | Athletics recalled 2B Zack Gelof from Las Vegas Aviators. |
| Apr 9 | Michael Kelly | Optioned | Athletics optioned RHP Michael Kelly to Las Vegas Aviators. |
| Apr 9 | Jack Perkins | Recalled | Athletics recalled RHP Jack Perkins from Las Vegas Aviators. |
| Apr 7 | Gunnar Hoglund | Status Change | Athletics transferred RHP Gunnar Hoglund from the 15-day injured list to the 60-day injured list. Sprained right knee. |
| Apr 7 | Joel Kuhnel | Selected | Athletics selected the contract of RHP Joel Kuhnel from Las Vegas Aviators. |
| Apr 6 | Luis Morales | Optioned | Athletics optioned RHP Luis Morales to Las Vegas Aviators. |
| Mar 26 | Elvis Alvarado | Number Change | RHP Elvis Alvarado changed number to 37. |
| Mar 23 | Gunnar Hoglund | Status Change | Athletics placed RHP Gunnar Hoglund on the 15-day injured list retroactive to March 22, 2026. Sprained right knee. |
| Mar 23 | Gerlin Rosario | Trade | Tampa Bay Rays traded RHP Gerlin Rosario to Athletics for 2B Cooper Bowman. |
| Mar 22 | Jack Perkins | Optioned | Athletics optioned RHP Jack Perkins to Las Vegas Aviators. |
| Mar 22 | Dairon De Jesus | Released | Athletics released RHP Dairon De Jesus. |
| Mar 21 | Colby Thomas | Optioned | Athletics optioned RF Colby Thomas to Las Vegas Aviators. |
| Mar 20 | Tom Reisinger | Released | Athletics released RHP Tom Reisinger. |
| Mar 20 | Colton Johnson | Released | Athletics released LHP Colton Johnson. |
| Mar 20 | Hunter Breault | Released | Athletics released RHP Hunter Breault. |
| Mar 19 | Tyler Ferguson | Optioned | Athletics optioned RHP Tyler Ferguson to Las Vegas Aviators. |
| Mar 19 | Zack Gelof | Optioned | Athletics optioned 2B Zack Gelof to Las Vegas Aviators. |
| Mar 17 | Justin Riemer | Assigned | 2B Justin Riemer assigned to Athletics. |
| Mar 16 | Abel Mercedes | Assigned | RHP Abel Mercedes assigned to Athletics. |
| Mar 16 | Davis Diaz | Assigned | C Davis Diaz assigned to Athletics. |
| Mar 13 | Kade Brown | Assigned | RHP Kade Brown assigned to Athletics. |
| Mar 13 | Riley Huge | Assigned | LHP Riley Huge assigned to Athletics. |
| Mar 13 | Alejandro Manzano | Assigned | RHP Alejandro Manzano assigned to Athletics. |
| Mar 13 | Owen Carapellotti | Assigned | C Owen Carapellotti assigned to Athletics. |
| Mar 13 | C.J. Pittaro | Assigned | SS C.J. Pittaro assigned to Athletics. |
| Mar 13 | Max Durrington | Assigned | OF Max Durrington assigned to Athletics. |
| Mar 13 | Dairon De Jesus | Assigned | RHP Dairon De Jesus assigned to Athletics. |
| Mar 13 | Brayan Buelvas | Assigned | OF Brayan Buelvas assigned to Athletics. |
| Mar 13 | Ryan Brown | Assigned | RHP Ryan Brown assigned to Athletics. |
| Mar 13 | Edgar Montero | Assigned | SS Edgar Montero assigned to Athletics. |
| Mar 12 | Ryan Magdic | Assigned | LHP Ryan Magdic assigned to Athletics. |
| Mar 12 | Tucker Novotny | Assigned | LHP Tucker Novotny assigned to Athletics. |
| Mar 12 | Myles Naylor | Assigned | SS Myles Naylor assigned to Athletics. |
| Mar 12 | Ramon Landaeta | Assigned | C Ramon Landaeta assigned to Athletics. |
| Mar 11 | Jay Dill | Assigned | RHP Jay Dill assigned to Athletics. |
| Mar 11 | Jose Ramos | Assigned | OF Jose Ramos assigned to Athletics. |
| Mar 11 | Samuel Gonzalez | Assigned | SS Samuel Gonzalez assigned to Athletics. |
| Mar 11 | Bryan Arendt | Assigned | C Bryan Arendt assigned to Athletics. |
| Mar 11 | Carlos Pacheco | Assigned | CF Carlos Pacheco assigned to Athletics. |
| Mar 11 | Bryan Andrade | Assigned | 3B Bryan Andrade assigned to Athletics. |
| Mar 11 | Joey Estes | Optioned | Athletics optioned RHP Joey Estes to Las Vegas Aviators. |
| Mar 10 | Pedro Pineda | Assigned | CF Pedro Pineda assigned to Athletics. |
| Mar 10 | Casey Yamauchi | Assigned | SS Casey Yamauchi assigned to Athletics. |
| Mar 10 | Rodney Green Jr. | Assigned | OF Rodney Green Jr. assigned to Athletics. |
| Mar 10 | Darlin Pinales | Assigned | RHP Darlin Pinales assigned to Athletics. |
| Mar 9 | Jack Mahoney | Assigned | LHP Jack Mahoney assigned to Athletics. |
| Mar 9 | Hunter Breault | Assigned | RHP Hunter Breault assigned to Athletics. |
| Mar 9 | Bryson McArn | Assigned | SS Bryson McArn assigned to Athletics. |
| Mar 9 | Brett Harris | Optioned | Athletics optioned 3B Brett Harris to Las Vegas Aviators. |
| Mar 9 | Mason Barnett | Optioned | Athletics optioned RHP Mason Barnett to Las Vegas Aviators. |
| Mar 8 | Brady Basso | Optioned | Athletics optioned LHP Brady Basso to Las Vegas Aviators. |
| Mar 8 | Braden Nett | Optioned | Athletics optioned RHP Braden Nett to Las Vegas Aviators. |
| Mar 8 | Junior Perez | Optioned | Athletics optioned CF Junior Perez to Las Vegas Aviators. |
| Mar 8 | Chen Zhong-Ao Zhuang | Optioned | Athletics optioned RHP Chen Zhong-Ao Zhuang to Las Vegas Aviators. |
| Mar 8 | Michael Brooks | Assigned | SS Michael Brooks assigned to Athletics. |
| Mar 8 | Gunner Gouldsmith | Assigned | SS Gunner Gouldsmith assigned to Athletics. |
| Mar 8 | Bobby Blandford | Assigned | OF Bobby Blandford assigned to Athletics. |
| Mar 7 | Nathan Dettmer | Assigned | RHP Nathan Dettmer assigned to Athletics. |
| Mar 7 | Griffin Kirn | Assigned | LHP Griffin Kirn assigned to Athletics. |
| Mar 7 | Dylan Fien | Assigned | C Dylan Fien assigned to Athletics. |
| Mar 7 | Daniel Bucciero | Assigned | 3B Daniel Bucciero assigned to Athletics. |
| Mar 7 | Jared Sprague-Lott | Assigned | SS Jared Sprague-Lott assigned to Athletics. |
| Mar 7 | Bobby Boser | Assigned | SS Bobby Boser assigned to Athletics. |
| Mar 6 | CD Pelham | Status Change | LHP CD Pelham roster status changed by Athletics. |
| Mar 6 | CD Pelham | Status Change | LHP CD Pelham roster status changed by Athletics. |
| Mar 6 | Jared Dickey | Assigned | RF Jared Dickey assigned to Athletics. |
| Mar 6 | CD Pelham | Assigned | LHP CD Pelham assigned to Athletics. |
| Mar 6 | Colton Johnson | Assigned | LHP Colton Johnson assigned to Athletics. |
| Mar 6 | Diego Barrera | Assigned | LHP Diego Barrera assigned to Athletics. |
| Mar 6 | Tom Reisinger | Assigned | RHP Tom Reisinger assigned to Athletics. |
| Mar 4 | Micah Dallas | Assigned | RHP Micah Dallas assigned to Athletics. |
| Mar 3 | Breyson Guedez | Assigned | OF Breyson Guedez assigned to Athletics. |
| Mar 3 | Carlos Franco | Assigned | C Carlos Franco assigned to Athletics. |
| Mar 2 | Frailyn Minier | Signed as Free Agent | Athletics signed free agent RHP Frailyn Minier to a minor league contract. |
| Mar 2 | Albert Ramos | Signed as Free Agent | Athletics signed free agent LHP Albert Ramos to a minor league contract. |
| Mar 2 | Cameron Leary | Assigned | RF Cameron Leary assigned to Athletics. |
| Mar 1 | Eduarniel Núñez | Optioned | Athletics optioned RHP Eduarniel Núñez to Las Vegas Aviators. |
| Mar 1 | Gavin Turley | Assigned | OF Gavin Turley assigned to Athletics. |
| Mar 1 | Cooper Bowman | Assigned | 2B Cooper Bowman assigned to Athletics. |
| Mar 1 | Drew Swift | Assigned | 3B Drew Swift assigned to Athletics. |
| Feb 28 | Henry Baez | Optioned | Athletics optioned RHP Henry Baez to Midland RockHounds. |
| Feb 27 | CJ Rodriguez | Assigned | C CJ Rodriguez assigned to Athletics. |
| Feb 26 | Itsuki Takemoto | Status Change | RHP Itsuki Takemoto roster status changed by Athletics. |
| Feb 26 | Itsuki Takemoto | Assigned | RHP Itsuki Takemoto assigned to Athletics. |
| Feb 26 | Jake Garland | Assigned | RHP Jake Garland assigned to Athletics. |
| Feb 26 | Jackson Finley | Assigned | RHP Jackson Finley assigned to Athletics. |
| Feb 24 | Blake Beers | Status Change | RHP Blake Beers roster status changed by Athletics. |
| Feb 24 | Stevie Emanuels | Assigned | RHP Stevie Emanuels assigned to Athletics. |
| Feb 24 | Blake Beers | Assigned | RHP Blake Beers assigned to Athletics. |
| Feb 23 | Zane Taylor | Status Change | RHP Zane Taylor roster status changed by Athletics. |
| Feb 23 | Zane Taylor | Status Change | RHP Zane Taylor roster status changed by Athletics. |
| Feb 23 | Steven Echavarria | Status Change | RHP Steven Echavarria roster status changed by Athletics. |
| Feb 23 | Luis Carrasco | Status Change | RHP Luis Carrasco roster status changed by Athletics. |
| Feb 23 | Zane Taylor | Assigned | RHP Zane Taylor assigned to Athletics. |
| Feb 23 | Steven Echavarria | Assigned | RHP Steven Echavarria assigned to Athletics. |
| Feb 23 | Jorge Marcheco | Assigned | RHP Jorge Marcheco assigned to Athletics. |
| Feb 23 | Luis Carrasco | Assigned | RHP Luis Carrasco assigned to Athletics. |
| Feb 23 | Colby Halter | Assigned | 2B Colby Halter assigned to Athletics. |
| Feb 23 | Brennan Milone | Assigned | 1B Brennan Milone assigned to Athletics. |
| Feb 22 | Shohei Tomioka | Status Change | RHP Shohei Tomioka roster status changed by Athletics. |
| Feb 22 | Cole Miller | Assigned | RHP Cole Miller assigned to Athletics. |
| Feb 22 | Corey Avant | Assigned | RHP Corey Avant assigned to Athletics. |
| Feb 22 | Blaze Pontes | Assigned | RHP Blaze Pontes assigned to Athletics. |
| Feb 22 | Shohei Tomioka | Assigned | RHP Shohei Tomioka assigned to Athletics. |
| Feb 21 | Tzu-Chen Sha | Assigned | RHP Tzu-Chen Sha assigned to Athletics. |
| Feb 21 | James Gonzalez | Assigned | LHP James Gonzalez assigned to Athletics. |
| Feb 21 | Devin Taylor | Assigned | OF Devin Taylor assigned to Athletics. |
| Feb 21 | Luke Mann | Assigned | 3B Luke Mann assigned to Athletics. |
| Feb 21 | Cole Conn | Assigned | C Cole Conn assigned to Athletics. |
| Feb 15 | Grant Holman | Claimed Off Waivers | Arizona Diamondbacks claimed RHP Grant Holman off waivers from Athletics. |
| Feb 12 | A.J. Causey | Assigned | Athletics invited non-roster RHP A.J. Causey to spring training. |
| Feb 12 | A.J. Causey | Trade | Athletics traded RHP Mitch Spence to Kansas City Royals for RHP A.J. Causey. |
| Feb 12 | Luis Morales | Number Change | RHP Luis Morales changed number to 19. |
| Feb 12 | Max Muncy | Number Change | 3B Max Muncy changed number to 3. |
| Feb 10 | Mitch Spence | Designated for Assignment | Athletics designated RHP Mitch Spence for assignment. |
| Feb 10 | Grant Holman | Designated for Assignment | Athletics designated RHP Grant Holman for assignment. |
| Feb 10 | Aaron Civale | Signed as Free Agent | Athletics signed free agent RHP Aaron Civale. |
| Feb 10 | Scott Barlow | Signed as Free Agent | Athletics signed free agent RHP Scott Barlow. |
| Feb 9 | Max Schuemann | Trade | Athletics traded 3B Max Schuemann to New York Yankees for RHP Luis Burgos. |
| Feb 6 | J.T. Ginn | Number Change | RHP J.T. Ginn changed number to 35. |
| Feb 6 | Max Schuemann | Designated for Assignment | Athletics designated 3B Max Schuemann for assignment. |
| Feb 6 | Andy Ibáñez | Claimed Off Waivers | Athletics claimed 3B Andy Ibáñez off waivers from Los Angeles Dodgers. |
| Jan 28 | Jamie Arnold | Assigned | Athletics invited non-roster LHP Jamie Arnold to spring training. |
| Jan 28 | JJ Goss | Assigned | Athletics invited non-roster RHP JJ Goss to spring training. |
| Jan 28 | Gustavo Rodriguez | Assigned | Athletics invited non-roster RHP Gustavo Rodriguez to spring training. |
| Jan 28 | Yunior Tur | Assigned | Athletics invited non-roster RHP Yunior Tur to spring training. |
| Jan 28 | Domingo Robles | Assigned | Athletics invited non-roster LHP Domingo Robles to spring training. |
| Jan 28 | Kade Morris | Assigned | Athletics invited non-roster RHP Kade Morris to spring training. |
| Jan 28 | Wei-En Lin | Assigned | Athletics invited non-roster LHP Wei-En Lin to spring training. |
| Jan 28 | Kenya Huggins | Assigned | Athletics invited non-roster RHP Kenya Huggins to spring training. |
| Jan 28 | Euribiel Angeles | Assigned | Athletics invited non-roster 3B Euribiel Angeles to spring training. |
| Jan 28 | Chad Wallach | Assigned | Athletics invited non-roster C Chad Wallach to spring training. |
| Jan 28 | Bryan Lavastida | Assigned | Athletics invited non-roster C Bryan Lavastida to spring training. |
| Jan 28 | Nick Hernandez | Assigned | Athletics invited non-roster RHP Nick Hernandez to spring training. |
| Jan 28 | Michael Stefanic | Assigned | Athletics invited non-roster 2B Michael Stefanic to spring training. |
| Jan 28 | Joel Kuhnel | Assigned | Athletics invited non-roster RHP Joel Kuhnel to spring training. |
| Jan 28 | Brian Serven | Assigned | Athletics invited non-roster C Brian Serven to spring training. |
| Jan 28 | Cade Marlowe | Assigned | Athletics invited non-roster OF Cade Marlowe to spring training. |
| Jan 28 | Brooks Kriske | Assigned | Athletics invited non-roster RHP Brooks Kriske to spring training. |
| Jan 28 | Geoff Hartlieb | Assigned | Athletics invited non-roster RHP Geoff Hartlieb to spring training. |
| Jan 28 | Matt Krook | Assigned | Athletics invited non-roster LHP Matt Krook to spring training. |
| Jan 28 | Joey Meneses | Assigned | Athletics invited non-roster 1B Joey Meneses to spring training. |
| Jan 28 | Wander Suero | Assigned | Athletics invited non-roster RHP Wander Suero to spring training. |
| Jan 28 | Nick Anderson | Assigned | Athletics invited non-roster RHP Nick Anderson to spring training. |
| Jan 28 | Tommy White | Assigned | Athletics invited non-roster 3B Tommy White to spring training. |
| Jan 28 | Shane McGuire | Assigned | Athletics invited non-roster C Shane McGuire to spring training. |
| Jan 28 | Ryan Lasko | Assigned | Athletics invited non-roster CF Ryan Lasko to spring training. |
| Jan 28 | Joshua Kuroda-Grauer | Assigned | Athletics invited non-roster SS Joshua Kuroda-Grauer to spring training. |
| Jan 28 | Clark Elliott | Assigned | Athletics invited non-roster LF Clark Elliott to spring training. |
| Jan 28 | Henry Bolte | Assigned | Athletics invited non-roster RF Henry Bolte to spring training. |
| Jan 28 | Gage Jump | Assigned | Athletics invited non-roster LHP Gage Jump to spring training. |
| Jan 28 | Leo De Vries | Assigned | Athletics invited non-roster SS Leo De Vries to spring training. |
| Jan 23 | CD Pelham | Signed as Free Agent | Athletics signed free agent LHP CD Pelham to a minor league contract. |
| Jan 18 | Chad Wallach | Signed as Free Agent | Athletics signed free agent C Chad Wallach to a minor league contract. |
| Jan 15 | Darian Rojas | Signed as Free Agent | Athletics signed free agent OF Darian Rojas to a minor league contract. |
| Jan 15 | Wensloby Jhon | Signed as Free Agent | Athletics signed free agent LHP Wensloby Jhon to a minor league contract. |
| Jan 15 | Edward Suazo | Signed as Free Agent | Athletics signed free agent SS Edward Suazo to a minor league contract. |
| Jan 15 | Erick Encarnacion | Signed as Free Agent | Athletics signed free agent 3B Erick Encarnacion to a minor league contract. |
| Jan 15 | Jose Perdomo | Signed as Free Agent | Athletics signed free agent C Jose Perdomo to a minor league contract. |
| Jan 15 | Ricky Duran | Signed as Free Agent | Athletics signed free agent SS Ricky Duran to a minor league contract. |
| Jan 15 | Johenssy Colome | Signed as Free Agent | Athletics signed free agent SS Johenssy Colome to a minor league contract. |
| Jan 9 | Judah Morris | Signed as Free Agent | Athletics signed free agent 1B Judah Morris to a minor league contract. |
| Jan 8 | Ken Waldichuk | Claimed Off Waivers | Atlanta Braves claimed LHP Ken Waldichuk off waivers from Athletics. |