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Every official 2021 MLB transaction involving the Arizona Diamondbacks on either side of the move: 147 trades, signings and releases dated and grouped by month, with MLB’s own description of each move. Both directions are covered: 138 moves land with the Diamondbacks and 9 depart from them.
Showing 147 of 147 Arizona Diamondbacks transactions
| Date | Type | Player | From | To | Details |
|---|---|---|---|---|---|
| Dec 22, 2021 | Signed as free agent | Roby Enriquez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RF Roby Enriquez to a minor league contract. |
| Dec 20, 2021 | Signed as free agent | Matt Cleveland | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Matt Cleveland to a minor league contract. |
| Dec 15, 2021 | Signed as free agent | Santiago Ramirez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Santiago Ramirez to a minor league contract. |
| Dec 15, 2021 | Signed as free agent | Yu-Min Lin | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent LHP Yu-Min Lin to a minor league contract. |
| Dec 14, 2021 | Signed as free agent | Christian Montes De Oca | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Christian Montes De Oca to a minor league contract. |
| Dec 14, 2021 | Signed as free agent | Alfred Morillo | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Alfred Morillo to a minor league contract. |
| Dec 1, 2021 | Signed as free agent | Mark Melancon | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Mark Melancon. |
| Dec 1, 2021 | Signed as free agent | Keynan Middleton | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Keynan Middleton. |
| Date | Type | Player | From | To | Details |
|---|---|---|---|---|---|
| Nov 29, 2021 | Signed as free agent | Braden Bishop | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent CF Braden Bishop to a minor league contract and invited him to spring training. |
| Nov 26, 2021 | Trade | Ronny Simon | Arizona Diamondbacks | Tampa Bay Rays | Tampa Bay Rays traded LF Jordan Luplow to Arizona Diamondbacks for SS Ronny Simon. |
| Nov 26, 2021 | Signed as free agent | Gemil Santa | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Gemil Santa to a minor league contract. |
| Nov 24, 2021 | Signed as free agent | Jeison Guzmán | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Jeison Guzman to a minor league contract. |
| Nov 22, 2021 | Signed as free agent | Leandro Cedeño | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 1B Leandro Cedeno to a minor league contract. |
| Nov 19, 2021 | Signed as free agent | C.J. Chatham | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS C.J. Chatham to a minor league contract and invited him to spring training. |
| Nov 13, 2021 | Signed as free agent | Juan Graterol | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent C Juan Graterol to a minor league contract. |
| Date | Type | Player | From | To | Details |
|---|---|---|---|---|---|
| Oct 25, 2021 | Signed as free agent | Chris Devenski | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Chris Devenski to a minor league contract. |
| Oct 4, 2021 | Signed as free agent | Vince Sanchez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Vince Sanchez to a minor league contract. |
| Date | Type | Player | From | To | Details |
|---|---|---|---|---|---|
| Sep 24, 2021 | Signed as free agent | Jose Cabrera | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Jose Cabrera to a minor league contract. |
| Sep 8, 2021 | Released | Seth Frankoff | — | Arizona Diamondbacks | Arizona Diamondbacks released RHP Seth Frankoff. |
| Sep 1, 2021 | Trade | Yaifer Perdomo | Toronto Blue Jays | Arizona Diamondbacks | Toronto Blue Jays traded LHP Yaifer Perdomo and C J.J. D'Orazio to Arizona Diamondbacks. |
| Date | Type | Player | From | To | Details |
|---|---|---|---|---|---|
| Aug 29, 2021 | Released | Bryan Holaday | — | Arizona Diamondbacks | Arizona Diamondbacks released C Bryan Holaday. |
| Aug 23, 2021 | Signed as free agent | Jonathan Almonte | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Jonathan Almonte to a minor league contract. |
| Aug 17, 2021 | Signed as free agent | Elijah Greene | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent OF Elijah Greene to a minor league contract. |
| Aug 7, 2021 | Released | Josh Reddick | — | Arizona Diamondbacks | Arizona Diamondbacks released RF Josh Reddick. |
| Date | Type | Player | From | To | Details |
|---|---|---|---|---|---|
| Jul 31, 2021 | Signed as free agent | Jon Duplantier | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Jon Duplantier to a minor league contract. |
| Jul 31, 2021 | Signed | Jordan Lawlar | — | Arizona Diamondbacks | Arizona Diamondbacks signed SS Jordan Lawlar. |
| Jul 30, 2021 | Trade | Joakim Soria | Arizona Diamondbacks | Toronto Blue Jays | Arizona Diamondbacks traded RHP Joakim Soria to Toronto Blue Jays for Player To Be Named Later and Player To Be Named Later. |
| Jul 30, 2021 | Signed | Gavin Conticello | — | Arizona Diamondbacks | Arizona Diamondbacks signed 3B Gavin Conticello. |
| Jul 30, 2021 | Signed | Luke Albright | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Luke Albright. |
| Jul 30, 2021 | Signed | Scott Randall | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Scott Randall. |
| Jul 30, 2021 | Signed | Josh Swales | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Josh Swales. |
| Jul 28, 2021 | Trade | Eduardo Escobar | Arizona Diamondbacks | Milwaukee Brewers | Milwaukee Brewers traded C Cooper Hummel and 2B Alberto Ciprian to Arizona Diamondbacks for 3B Eduardo Escobar. |
| Jul 28, 2021 | Released | Keury Mella | — | Arizona Diamondbacks | Arizona Diamondbacks released RHP Keury Mella. |
| Jul 27, 2021 | Released | Jon Duplantier | — | Arizona Diamondbacks | Arizona Diamondbacks released RHP Jon Duplantier. |
| Jul 24, 2021 | Signed | Channy Ortiz | — | Arizona Diamondbacks | Arizona Diamondbacks signed SS Channy Ortiz. |
| Jul 24, 2021 | Signed | Tim Tawa | — | Arizona Diamondbacks | Arizona Diamondbacks signed 2B Tim Tawa. |
| Jul 23, 2021 | Signed | Adrian Del Castillo | — | Arizona Diamondbacks | Arizona Diamondbacks signed C Adrian Del Castillo. |
| Jul 23, 2021 | Signed | Shane Muntz | — | Arizona Diamondbacks | Arizona Diamondbacks signed C Shane Muntz. |
| Jul 22, 2021 | Signed as free agent | Jamison Hill | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Jamison Hill to a minor league contract. |
| Jul 20, 2021 | Signed as free agent | Kyle Backhus | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent LHP Kyle Backhus to a minor league contract. |
| Jul 19, 2021 | Signed | Jacen Roberson | — | Arizona Diamondbacks | Arizona Diamondbacks signed OF Jacen Roberson. |
| Jul 18, 2021 | Signed as free agent | Shane Carle | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Shane Carle to a minor league contract. |
| Jul 17, 2021 | Signed as free agent | Zach Barnes | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Zach Barnes to a minor league contract. |
| Jul 17, 2021 | Signed | Ross Carver | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP John Carver. |
| Jul 17, 2021 | Signed | Ryan Bliss | — | Arizona Diamondbacks | Arizona Diamondbacks signed SS Ryan Bliss. |
| Jul 17, 2021 | Signed | Caleb Roberts | — | Arizona Diamondbacks | Arizona Diamondbacks signed C Caleb Roberts. |
| Jul 17, 2021 | Signed | Collin Sullivan | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Collin Sullivan. |
| Jul 16, 2021 | Signed as free agent | Miguel Gonzalez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Miguel Gonzalez to a minor league contract. |
| Jul 16, 2021 | Trade | Mason Berne | Atlanta Braves | Arizona Diamondbacks | Atlanta Braves traded 1B Mason Berne to Arizona Diamondbacks for C Stephen Vogt. |
| Jul 16, 2021 | Signed as free agent | Peniel Otano | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Peniel Otano to a minor league contract. |
| Jul 12, 2021 | Signed as free agent | Sebastian Santana | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Sebastian Santana to a minor league contract. |
| Jul 10, 2021 | Signed as free agent | Vitico Valdez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Vitico Valdez to a minor league contract. |
| Jul 2, 2021 | Trade | Sam Moll | Arizona Diamondbacks | Athletics | Arizona Diamondbacks traded LHP Sam Moll to Oakland Athletics for cash. |
| Jul 1, 2021 | Trade | Keegan Curtis | New York Yankees | Arizona Diamondbacks | Arizona Diamondbacks traded LF Tim Locastro to New York Yankees for RHP Keegan Curtis. |
| Jul 1, 2021 | Signed as free agent | Jonah Girand | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent C Jonah Girand to a minor league contract. |
| Date | Type | Player | From | To | Details |
|---|---|---|---|---|---|
| Jun 28, 2021 | Trade | Matt Lipka | Arizona Diamondbacks | Milwaukee Brewers | Arizona Diamondbacks traded CF Matt Lipka to Milwaukee Brewers for cash. |
| Jun 19, 2021 | Signed as free agent | Jake Faria | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Jake Faria. |
| Jun 17, 2021 | Signed as free agent | Blake Rogers | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Blake Rogers to a minor league contract. |
| Jun 5, 2021 | Signed as free agent | Jesús Liranzo | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Jesus Liranzo to a minor league contract. |
| Jun 3, 2021 | Trade | Tyler Jones | Miami Marlins | Arizona Diamondbacks | Miami Marlins traded RHP Tyler Jones to Arizona Diamondbacks. |
| Jun 2, 2021 | Trade | Ildemaro Vargas | Pittsburgh Pirates | Arizona Diamondbacks | Pittsburgh Pirates traded 2B Ildemaro Vargas to Arizona Diamondbacks for cash. |
| Date | Type | Player | From | To | Details |
|---|---|---|---|---|---|
| May 22, 2021 | Trade | Deivi Estrada | Atlanta Braves | Arizona Diamondbacks | Arizona Diamondbacks traded RHP Yoan Lopez to Atlanta Braves for CF Deivi Estrada. |
| May 22, 2021 | Signed | Noé Ramirez | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Noe Ramirez. |
| May 22, 2021 | Signed | Nick Gardewine | — | Arizona Diamondbacks | Arizona Diamondbacks signed RHP Nick Gardewine. |
| May 19, 2021 | Signed as free agent | Dario Agrazal | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Dario Agrazal to a minor league contract. |
| May 19, 2021 | Signed as free agent | Henry Ramos | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RF Henry Ramos to a minor league contract. |
| May 18, 2021 | Signed as free agent | Mikey Reynolds | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 2B Mikey Reynolds to a minor league contract. |
| May 16, 2021 | Trade | Wyatt Mathisen | Arizona Diamondbacks | Tampa Bay Rays | Arizona Diamondbacks traded 3B Wyatt Mathisen to Tampa Bay Rays for cash. |
| May 14, 2021 | Signed as free agent | Alexis Pantoja | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Alexis Pantoja to a minor league contract. |
| May 13, 2021 | Signed as free agent | Josh Lucas | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Josh Lucas to a minor league contract. |
| May 11, 2021 | Trade | Trayce Thompson | Arizona Diamondbacks | Chicago Cubs | Arizona Diamondbacks traded RF Trayce Thompson to Chicago Cubs. |
| May 11, 2021 | Signed | Austin Rei | — | Arizona Diamondbacks | Arizona Diamondbacks signed C Austin Rei. |
| May 11, 2021 | Signed as free agent | Jeremy Rhoades | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Jeremy Rhoades to a minor league contract. |
| May 6, 2021 | Signed as free agent | Carlos Sanchez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent CF Carlos Sanchez to a minor league contract. |
| May 5, 2021 | Signed as free agent | D.J. Burt | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 2B D.J. Burt to a minor league contract. |
| May 4, 2021 | Signed as free agent | Hunter Haworth | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Hunter Haworth to a minor league contract. |
| May 3, 2021 | Signed as free agent | Matt Lipka | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent CF Matt Lipka to a minor league contract. |
| May 3, 2021 | Signed as free agent | Mitchell Osnowitz | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Mitchell Osnowitz to a minor league contract. |
| Date | Type | Player | From | To | Details |
|---|---|---|---|---|---|
| Apr 23, 2021 | Released | Anthony Swarzak | — | Arizona Diamondbacks | Arizona Diamondbacks released RHP Anthony Swarzak. |
| Apr 22, 2021 | Trade | Jeremy Beasley | Arizona Diamondbacks | Toronto Blue Jays | Arizona Diamondbacks traded RHP Jeremy Beasley to Toronto Blue Jays for cash. |
| Apr 17, 2021 | Trade | Nick Heath | Kansas City Royals | Arizona Diamondbacks | Kansas City Royals traded CF Nick Heath to Arizona Diamondbacks for RHP Eduardo Herrera. |
| Apr 12, 2021 | Signed as free agent | Josh Reddick | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RF Josh Reddick. |
| Apr 12, 2021 | Signed as free agent | Will Sherriff | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Will Sherriff. |
| Date | Type | Player | From | To | Details |
|---|---|---|---|---|---|
| Mar 29, 2021 | Signed as free agent | Osvaldo Abreu | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Osvaldo Abreu. |
| Mar 27, 2021 | Signed as free agent | Bryan Holaday | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent C Bryan Holaday. |
| Mar 27, 2021 | Signed as free agent | Bryan Holaday | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent C Bryan Holaday. |
| Mar 19, 2021 | Signed as free agent | Heath Fillmyer | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Heath Fillmyer. |
| Mar 19, 2021 | Signed as free agent | Stone Garrett | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent CF Stone Garrett. |
| Mar 19, 2021 | Signed as free agent | Jarett Rindfleisch | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent C Jarett Rindfleisch. |
| Mar 19, 2021 | Released | Bradley Roney | — | Arizona Diamondbacks | Arizona Diamondbacks released P Bradley Roney. |
| Mar 5, 2021 | Released | Drew Weeks | — | Arizona Diamondbacks | Arizona Diamondbacks released RF Drew Weeks. |
| Mar 4, 2021 | Signed as free agent | Anthony Swarzak | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Anthony Swarzak. |
| Mar 4, 2021 | Signed as free agent | Anthony Swarzak | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Anthony Swarzak. |
| Date | Type | Player | From | To | Details |
|---|---|---|---|---|---|
| Feb 28, 2021 | Trade | Travis Bergen | Arizona Diamondbacks | Toronto Blue Jays | Arizona Diamondbacks traded P Travis Bergen to Toronto Blue Jays for $0. |
| Feb 26, 2021 | Signed as free agent | Tyler Clippard | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Tyler Clippard. |
| Feb 26, 2021 | Signed as free agent | Tyler Clippard | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Tyler Clippard. |
| Feb 22, 2021 | Signed as free agent | Asdrúbal Cabrera | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 3B Asdrubal Cabrera. |
| Feb 22, 2021 | Signed as free agent | Asdrúbal Cabrera | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Asdrubal Cabrera. |
| Feb 22, 2021 | Signed as free agent | Asdrúbal Cabrera | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Asdrubal Cabrera. |
| Feb 11, 2021 | Signed as free agent | Chris Devenski | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Chris Devenski to a minor league contract and invited him to spring training. |
| Feb 11, 2021 | Signed as free agent | Carlos Navas | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Carlos Navas to a minor league contract and invited him to spring training. |
| Feb 11, 2021 | Signed as free agent | Christian Lopes | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 2B Christian Lopes to a minor league contract and invited him to spring training. |
| Feb 11, 2021 | Signed as free agent | Christian Lopes | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 2B Christian Lopes to a minor league contract and invited him to spring training. |
| Feb 11, 2021 | Signed as free agent | Carlos Navas | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Carlos Navas to a minor league contract and invited him to spring training. |
| Feb 11, 2021 | Signed as free agent | Chris Devenski | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Chris Devenski to a minor league contract and invited him to spring training. |
| Feb 11, 2021 | Signed as free agent | Carlos Navas | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Carlos Navas. |
| Feb 9, 2021 | Signed as free agent | Matt Gage | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent LHP Matt Gage to a minor league contract. |
| Feb 6, 2021 | Signed as free agent | Joakim Soria | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Joakim Soria. |
| Feb 6, 2021 | Signed as free agent | Ryder Jones | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 3B Ryder Jones to a minor league contract. |
| Feb 6, 2021 | Signed as free agent | Zach Lee | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Zach Lee to a minor league contract. |
| Feb 5, 2021 | Signed as free agent | Jefferson Pena | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Jefferson Pena to a minor league contract. |
| Feb 5, 2021 | Signed as free agent | Jose Fernandez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Jose Fernandez to a minor league contract. |
| Feb 5, 2021 | Signed as free agent | Yilber Díaz | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Yilber Diaz. |
| Feb 5, 2021 | Signed as free agent | Jonathan Nava | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent C Jonathan Nava. |
| Feb 5, 2021 | Signed as free agent | Jose Aguirre | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Jose Aguirre. |
| Feb 5, 2021 | Signed as free agent | Kenny Castillo | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent C Kenny Castillo. |
| Feb 5, 2021 | Signed as free agent | Nixon Parra | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Nixon Parra. |
| Feb 5, 2021 | Signed as free agent | Deyer Zapata | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Deyer Zapata. |
| Feb 5, 2021 | Signed as free agent | Fernando Alvarado | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 2B Fernando Alvarado. |
| Feb 5, 2021 | Signed as free agent | Anderson Colmenarez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Anderson Colmenarez. |
| Feb 5, 2021 | Signed as free agent | Felix Nunez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Felix Nunez. |
| Feb 2, 2021 | Signed as free agent | Joe Jones | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Joe Jones. |
| Feb 1, 2021 | Signed as free agent | Yan Mago | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Yan Mago. |
| Date | Type | Player | From | To | Details |
|---|---|---|---|---|---|
| Jan 29, 2021 | Signed as free agent | Jandel Sanchez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Jandel Sanchez. |
| Jan 29, 2021 | Signed as free agent | Eskoly De Jesus | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent OF Eskoly De Jesus. |
| Jan 29, 2021 | Signed as free agent | Jesus Suarez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Jesus Suarez. |
| Jan 29, 2021 | Signed as free agent | Adrian De Leon | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent C Adrian De Leon. |
| Jan 22, 2021 | Signed as free agent | Ricardo Yan | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Ricardo Yan. |
| Jan 22, 2021 | Signed as free agent | Ezequiel Surun | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Ezequiel Surun. |
| Jan 18, 2021 | Signed as free agent | Edgar Arredondo | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Edgar Arredondo to a minor league contract. |
| Jan 18, 2021 | Signed as free agent | Bryan Holaday | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent C Bryan Holaday to a minor league contract and invited him to spring training. |
| Jan 18, 2021 | Signed as free agent | Ryan Buchter | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent LHP Ryan Buchter to a minor league contract and invited him to spring training. |
| Jan 18, 2021 | Signed as free agent | Bryan Holaday | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent C Bryan Holaday to a minor league contract and invited him to spring training. |
| Jan 18, 2021 | Signed as free agent | Ryan Buchter | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent LHP Ryan Buchter to a minor league contract and invited him to spring training. |
| Jan 18, 2021 | Signed as free agent | Ryan Buchter | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Ryan Buchter. |
| Jan 15, 2021 | Signed as free agent | Daniel Jean | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent LHP Daniel Jean to a minor league contract. |
| Jan 15, 2021 | Signed as free agent | Alexander Benua | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Alexander Benua to a minor league contract. |
| Jan 15, 2021 | Signed as free agent | Lisandro Almonte | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Lisandro Almonte to a minor league contract. |
| Jan 15, 2021 | Signed as free agent | Kevin Santos | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent OF Kevin Santos to a minor league contract. |
| Jan 15, 2021 | Signed as free agent | Jakey Josepha | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent SS Jakey Josepha to a minor league contract. |
| Jan 15, 2021 | Signed as free agent | Lorenzo Encarnacion | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Lorenzo Encarnacion to a minor league contract. |
| Jan 15, 2021 | Signed as free agent | Jesus Jimenez | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Jesus Jimenez to a minor league contract. |
| Jan 15, 2021 | Signed as free agent | Anderdson Rojas | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent 2B Anderdson Rojas to a minor league contract. |
| Jan 15, 2021 | Signed as free agent | Victor Brea | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent LHP Victor Brea to a minor league contract. |
| Jan 5, 2021 | Signed as free agent | Seth Frankoff | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Seth Frankoff to a minor league contract and invited him to spring training. |
| Jan 5, 2021 | Signed as free agent | Seth Frankoff | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent RHP Seth Frankoff to a minor league contract and invited him to spring training. |
| Jan 5, 2021 | Signed as free agent | Seth Frankoff | — | Arizona Diamondbacks | Arizona Diamondbacks signed free agent P Seth Frankoff. |
Every row is captured from MLB’s official StatsAPI transactions feed with MLB’s published description unedited. A trade appears on both clubs’ pages for the season; signings include both major-league and minor-league contracts signed with the club; injury-list moves and minor-league affiliate-only transactions are outside this archive’s scope.
Transaction data: official MLB StatsAPI. Data provided by MLB Advanced Media. Archived and published by Legends Deck. Kept transaction types: Trade, Signed, Signed as free agent, Released.