| | P | Signed (The Arizona Diamondbacks signed LHP Jordan Montgomery.) |
| | SS | Declared Free Agency (The Arizona Diamondbacks INF Kevin Newman opted out of his contract and became a free agent.) |
| | P | Placed on 15-Day IL (The Arizona Diamondbacks placed RHP Paul Sewald on the 15-day injured list due to an oblique strain.) |
| | SS | Sent to Minors (The Arizona Diamondbacks sent INF Kevin Newman to the minors.) |
| | C | Sent to Minors (The Arizona Diamondbacks optioned C Jose Herrera to the minors.) |
| | P | Designated for Assignment (The Arizona Diamondbacks designated RHP Peter Strzelecki for assignment.) |
| | C | Recalled From Minors Rehab (The Arizona Diamondbacks selected the contract of C Tucker Barnhart from the minors.) |
| | C | Sent to Minors (The Arizona Diamondbacks optioned C Jose Herrera to the minors.) |
| | RF | Sent to Minors (The Arizona Diamondbacks optioned OF Pavin Smith to the minors.) |
| | SS | Released (The Arizona Diamondbacks released INF Elvis Andrus.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent LHP José Castillo to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks optioned LHP Andrew Saalfrank to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks optioned RHP Corbin Martin to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks optioned LHP Blake Walston to the minors.) |
| | LF | Sent to Minors (The Arizona Diamondbacks sent OF Kyle Garlick to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks optioned RHP Slade Cecconi to the minors.) |
| | LF | Sent to Minors (The Arizona Diamondbacks sent OF Albert Almora to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent RHP Ricky Karcher to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent RHP Humberto Castellanos to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent RHP Josh Green to the minors.) |
| | 3B | Sent to Minors (The Arizona Diamondbacks sent INF Andrés Chaparro to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent LHP Logan Allen to the minors.) |
| | C | Sent to Minors (The Arizona Diamondbacks sent C Adrian Del Castillo to the minors.) |
| | SS | Sent to Minors (The Arizona Diamondbacks optioned INF Jordan Lawlar to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent LHP Kyle Backhus to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks optioned RHP Peter Strzelecki to the minors.) |
| | LF | Sent to Minors (The Arizona Diamondbacks optioned OF Jorge Barrosa from the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks optioned RHP Cristian Mena to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks optioned RHP Justin Martinez to the minors.) |
| | LF | Sent to Minors (The Arizona Diamondbacks assigned CF Jorge Barrosa to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks assigned RP Justin Martinez to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks assigned P Cristian Mena to the minors.) |
| | SS | Sent to Minors (The Arizona Diamondbacks assigned SS Jordan Lawlar to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks assigned RP Peter Strzelecki to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent RHP Dakota Chalmers to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent LHP Brandon Hughes to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent RHP Francisco Morales to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent RHP Luke Albright to the minors.) |
| | 1B | Sent to Minors (The Arizona Diamondbacks sent INF Tristin English to the minors.) |
| | CF | Sent to Minors (The Arizona Diamondbacks sent OF Kristian Robinson to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent RHP Chris Rodriguez to the minors.) |
| | 1B | Sent to Minors (The Arizona Diamondbacks sent INF Ivan Melendez to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent RHP Austin Pope to the minors.) |
| | C | Sent to Minors (The Arizona Diamondbacks sent C J.J. D'Orazio to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent LHP Yu-Min Lin to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent LHP Konnor Pilkington to the minors.) |
| | C | Sent to Minors (The Arizona Diamondbacks sent C Ronaldo Hernández to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent RHP Christian Montes De Oca to the minors.) |
| | C | Sent to Minors (The Arizona Diamondbacks sent C Caleb Roberts to the minors.) |
| | 3B | Sent to Minors (The Arizona Diamondbacks sent INF A.J. Vukovich to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent RHP Drey Jameson to the minors.) |
| | LF | Non-roster Invitee (The Arizona Diamondbacks signed OF Kyle Garlick to a minor league contract with an invitation to spring training.) |
| | LF | Non-roster Invitee (The Arizona Diamondbacks signed OF Albert Almora to a minor league contract with an invitation to spring training.) |
| | P | Placed on 60-Day IL (The Arizona Diamondbacks placed RHP Drey Jameson on the 60-day injured list.) |
| | LF | Signed (The Arizona Diamondbacks signed OF Randal Grichuk.) |
| | P | Traded (The Chicago White Sox traded RHP Cristian Mena to the Arizona Diamondbacks.) From |
| | CF | Traded (The Arizona Diamondbacks traded OF Dominic Fletcher to the Chicago White Sox.) To |
| | P | Non-roster Invitee (The Arizona Diamondbacks invited RHP Humberto Castellanos to spring training.) |
| | P | Non-roster Invitee (The Arizona Diamondbacks invited RHP Ricky Karcher to spring training.) |
| | 1B | Non-roster Invitee (The Arizona Diamondbacks invited INF Tristin English to spring training.) |
| | P | Non-roster Invitee (The Arizona Diamondbacks invited RHP Chris Rodriguez to spring training.) |
| | P | Non-roster Invitee (The Arizona Diamondbacks invited LHP Yu-Min Lin to spring training.) |
| | C | Non-roster Invitee (The Arizona Diamondbacks invited C Adrian Del Castillo to spring training.) |
| | 1B | Non-roster Invitee (The Arizona Diamondbacks invited INF Ivan Melendez to spring training.) |
| | P | Non-roster Invitee (The Arizona Diamondbacks invited LHP Konnor Pilkington to spring training.) |
| | P | Non-roster Invitee (The Arizona Diamondbacks invited RHP Josh Green to spring training.) |
| | P | Non-roster Invitee (The Arizona Diamondbacks invited RHP Christian Montes De Oca to spring training.) |
| | P | Non-roster Invitee (The Arizona Diamondbacks invited LHP Kyle Backhus to spring training.) |
| | P | Non-roster Invitee (The Arizona Diamondbacks invited RHP Francisco Morales to spring training.) |
| | P | Non-roster Invitee (The Arizona Diamondbacks invited LHP José Castillo to spring training.) |
| | C | Non-roster Invitee (The Arizona Diamondbacks invited C Caleb Roberts to spring training.) |
| | C | Non-roster Invitee (The Arizona Diamondbacks invited C J.J. D'Orazio to spring training.) |
| | P | Non-roster Invitee (The Arizona Diamondbacks invited RHP Austin Pope to spring training.) |
| | P | Non-roster Invitee (The Arizona Diamondbacks invited Luke Albright to spring training.) |
| | CF | Non-roster Invitee (The Arizona Diamondbacks invited OF Kristian Robinson to spring training.) |
| | 3B | Non-roster Invitee (The Arizona Diamondbacks invited INF A.J. Vukovich to spring training.) |
| | P | Designated for Assignment (The Arizona Diamondbacks designated RHP Collin Snider for assignment.) |
| | LF | Signed (The Arizona Diamondbacks signed OF Joc Pederson.) |
| | P | Signed (The Arizona Diamondbacks signed RHP Dylan File to a minor league contract.) |
| | P | Signed (The Arizona Diamondbacks signed RHP Dylan File to a minor league contract.) |
| | P | Non-roster Invitee (The Arizona Diamondbacks signed RHP Dakota Chalmers to a minor league contract with an invitation to spring training.) |
| | P | Signed (The Arizona Diamondbacks signed LHP Logan Allen to a minor league contract with an invitation to spring training.) |
| | C | Signed (The Arizona Diamondbacks signed C Tucker Barnhart to a minor league contract with an invitation to spring training.) |
| | P | Signed (The Arizona Diamondbacks signed LHP Logan Allen to a minor league contract with an invitation to spring training.) |
| | C | Signed (The Arizona Diamondbacks signed C Tucker Barnhart to a minor league contract with an invitation to spring training.) |
| | P | Signed (The Arizona Diamondbacks signed LHP Eduardo Rodriguez.) |
| | SS | Drafted Via Rule 5 (The Arizona Diamondbacks selected INF Andy Weber in the Rule 5 Draft.) |
| | P | Drafted Via Rule 5 (The Arizona Diamondbacks selected RHP John Matthews in the Rule 5 Draft.) |
| | P | Signed (The Arizona Diamondbacks signed RHP Ricky Karcher to a minor league contract.) |
| | P | Signed (The Arizona Diamondbacks signed RHP Ricky Karcher to a minor league contract.) |
| | P | Non-roster Invitee (The Arizona Diamondbacks signed LHP José Castillo to a minor league contract with an invitation to spring training.) |
| | C | Traded (The Arizona Diamondbacks traded C Seby Zavala to the Seattle Mariners.) To |
| | P | Traded (The Arizona Diamondbacks traded RHP Carlos Vargas to the Seattle Mariners.) To |
| | 3B | Traded (The Seattle Mariners traded INF Eugenio Suárez to the Arizona Diamondbacks.) From |
| | P | Signed (The Arizona Diamondbacks signed RHP Francisco Morales to a minor league contract.) |
| | DH | Released (The Arizona Diamondbacks released DH Kyle Lewis.) |
| | P | Recalled From Minors Rehab (The Arizona Diamondbacks selected the contract of LHP Blake Walston from the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent RHP Chris Rodriguez outright to the minors.) |
| | P | Declared Free Agency (RHP Michel Otanez elected free agency.) |
| | P | Declared Free Agency (RHP Raffi Vizcaíno elected free agency.) |
| | SS | Declared Free Agency (INF Sergio Alcantara elected free agency.) |
| | P | Declared Free Agency (LHP Tyler Gilbert elected free agency.) |
| | P | Declared Free Agency (RHP Austin Adams elected free agency.) |
| | SS | Declared Free Agency (INF Camden Duzenack declared free agency.) |
| | C | Declared Free Agency (C Juan Centeno declared free agency.) |
| | P | Declared Free Agency (RHP Stephen Nogosek declared free agency.) |
| | C | Declared Free Agency (C Ali Sánchez declared free agency.) |
| | 3B | Declared Free Agency (OF Phillip Evans declared free agency.) |
| | C | Declared Free Agency (C Dominic Miroglio declared free agency.) |
| | P | Declared Free Agency (RHP Tyler Ferguson declared free agency.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent RHP Austin Adams outright to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent LHP Tyler Gilbert outright to the minors.) |
| | P | Declared Free Agency (RHP Mark Melancon declared free agency.) |
| | P | Activated (The Arizona Diamondbacks activated RHP Austin Adams.) |
| | CF | Activated (The Arizona Diamondbacks activated OF Dominic Fletcher.) |
| | P | Activated (The Arizona Diamondbacks activated RHP Drey Jameson.) |
| | P | Activated (The Arizona Diamondbacks activated LHP Tommy Henry.) |
| | P | Activated (The Arizona Diamondbacks activated RHP Mark Melancon.) |
| | P | Activated (The Arizona Diamondbacks activated RHP Corbin Martin.) |
| | P | Activated (The Arizona Diamondbacks activated LHP Tyler Gilbert.) |
| | C | Activated (The Arizona Diamondbacks activated C Seby Zavala.) |
| | RF | Activated (The Arizona Diamondbacks activated OF Jake McCarthy.) |
| | P | Declared Free Agency (RHP José Ruiz elected free agency.) |
| | P | Activated (The Arizona Diamondbacks activated RHP Slade Cecconi.) |
| | LF | Activated (The Arizona Diamondbacks activated OF Jorge Barrosa.) |
| | P | Activated (The Arizona Diamondbacks activated RHP Peter Strzelecki.) |
| | P | Activated (The Arizona Diamondbacks activated RHP Bryce Jarvis.) |
| | SS | Activated (The Arizona Diamondbacks activated INF Diego Castillo.) |
| | P | Activated (The Arizona Diamondbacks activated RHP Justin Martinez.) |
| | SS | Activated (The Arizona Diamondbacks activated INF Blaze Alexander.) |
| | DH | Activated (The Arizona Diamondbacks activated DH Kyle Lewis.) |
| | P | Activated (The Arizona Diamondbacks activated RHP Carlos Vargas.) |
| | P | Activated (The Arizona Diamondbacks activated RHP Scott McGough.) |
| | P | Declared Free Agency (Arizona Diamondbacks RHP Zach Davies declared free agency.) |
| | 3B | Declared Free Agency (Arizona Diamondbacks INF Evan Longoria declared free agency.) |
| | LF | Declared Free Agency (Arizona Diamondbacks OF Tommy Pham declared free agency.) |
| | P | Declared Free Agency (Arizona Diamondbacks RHP Tyler Chatwood declared free agency.) |
| | LF | Declared Free Agency (Arizona Diamondbacks OF Lourdes Gurriel declared free agency.) |
| | P | Claimed on Unconditional Release Waivers (The Arizona Diamondbacks claimed RHP Chris Rodriguez off waivers from the Los Angeles Angels.) |
| | 3B | Recalled From Minors Rehab (The Arizona Diamondbacks recalled INF Jace Peterson from the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks assigned RHP Slade Cecconi to the minors.) |
| | 3B | Sent to Minors (The Arizona Diamondbacks optioned INF Jace Peterson to the minors.) |
| | P | Recalled From Minors Rehab (The Arizona Diamondbacks recalled RHP Slade Cecconi from the minors.) |
| | P | Declared Free Agency (RHP Nabil Crismatt declared free agency.) |
| | P | Sent to Minors (The Arizona Diamondbacks optioned RHP Bryce Jarvis to the minors.) |
| | P | Activated (The Arizona Diamondbacks activated LHP Kyle Nelson.) |
| | C | Declared Free Agency (C Sergio Gutierrez elected free agency.) |
| | P | Declared Free Agency (RHP Gustavo Del Pozo elected free agency.) |
| | P | Declared Free Agency (RHP Peter Solomon declared free agency.) |
| | 3B | Activated (The Arizona Diamondbacks recalled INF Jace Peterson from the minors.) |
| | C | Recalled From Minors Rehab (The Arizona Diamondbacks recalled C Jose Herrera from the minors.) |
| | RF | Recalled From Minors Rehab (The Arizona Diamondbacks recalled OF Pavin Smith from the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks optioned LHP Kyle Nelson to the minors.) |
| | 3B | Sent to Minors (The Arizona Diamondbacks optioned INF Jace Peterson to the minors.) |
| | C | Sent to Minors (The Arizona Diamondbacks optioned C Seby Zavala to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks optioned RHP Justin Martinez to the minors.) |
| | RF | Sent to Minors (The Arizona Diamondbacks optioned OF Jake McCarthy to the minors.) |
| | P | Recalled From Minors Rehab (The Arizona Diamondbacks recalled RHP Justin Martinez from the minors.) |
| | P | Designated for Assignment (The Arizona Diamondbacks designated RHP Zach Davies for assignment.) |
| | P | Sent to Minors (The Arizona Diamondbacks optioned RHP Slade Cecconi to the minors.) |
| | P | Activated (The Arizona Diamondbacks reinstated RHP Miguel Castro from the Paternity List.) |
| | P | Recalled From Minors Rehab (The Arizona Diamondbacks recalled RHP Slade Cecconi from the minors.) |
| | P | Placed on Paternity Leave List (The Arizona Diamondbacks placed RHP Miguel Castro on the Paternity Leave list.) |
| | P | Placed on 15-Day IL (The Arizona Diamondbacks placed RHP Scott McGough on the 15-day injured list.) |
| | P | Recalled From Minors Rehab (The Arizona Diamondbacks recalled RHP Bryce Jarvis from the minors.) |
| | C | Sent to Minors (The Arizona Diamondbacks optioned C Jose Herrera to the minors.) |
| | C | Activated (The Arizona Diamondbacks activated C Gabriel Moreno from the Paternity List.) |
| | RF | Recalled From Minors Rehab (The Arizona Diamondbacks recalled OF Jake McCarthy from the minors.) |
| | C | Placed on Paternity Leave List (The Arizona Diamondbacks placed C Gabriel Moreno on the Paternity Leave list.) |
| | RF | Sent to Minors (The Arizona Diamondbacks optioned DH Pavin Smith to the minors.) |
| | C | Recalled From Minors Rehab (The Arizona Diamondbacks recalled C Jose Herrera from the minors.) |
| | SS | Released (The Arizona Diamondbacks released INF Nick Ahmed.) |
| | SS | Recalled From Minors Rehab (The Arizona Diamondbacks selected the contract of INF Jordan Lawlar from the minors.) |
| | P | Recalled From Minors Rehab (The Arizona Diamondbacks recalled RHP Ryne Nelson from the minors.) |
| | C | Activated (The Arizona Diamondbacks activated C Seby Zavala.) |
| | 2B | Designated for Assignment (The Arizona Diamondbacks designated IF Buddy Kennedy for assignement.) |
| | SS | Designated for Assignment (The Arizona Diamondbacks designated INF Nick Ahmed for assignment.) |
| | C | Sent to Minors (The Arizona Diamondbacks optioned C Jose Herrera to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks optioned RHP Bryce Jarvis to the minors.) |
| | C | Claimed on Unconditional Release Waivers (The Arizona Diamondbacks claimed C Seby Zavala off waivers from the Chicago White Sox.) |
| | CF | Placed on 60-Day IL (The Arizona Diamondbacks placed OF Dominic Fletcher on the 60-day injured list.) |
| | CF | Recalled From Minors Rehab (The Arizona Diamondbacks recalled OF Dominic Fletcher from the minors.) |
| | P | Recalled From Minors Rehab (The Arizona Diamondbacks selected the contract of LHP Andrew Saalfrank.) |
| | P | Sent to Minors (The Arizona Diamondbacks optioned RHP Slade Cecconi to the minors.) |
| | RF | Recalled From Minors Rehab (The Arizona Diamondbacks recalled DH Pavin Smith from the minors.) |
| | 3B | Recalled From Minors Rehab (The Arizona Diamondbacks recalled INF Emmanuel Rivera from the minors.) |
| | P | Recalled From Minors Rehab (The Arizona Diamondbacks recalled RHP Luis Frías from the minors.) |
| | 2B | Sent to Minors (The Arizona Diamondbacks optioned INF Buddy Kennedy to the minors.) |
| | P | Sent to Minors (The Arizona Diamondbacks sent RHP Nabil Crismatt outright to the minors.) |