D-backs Roster & Staff
Transactions
| Date | Transaction |
| 04/09/26 | Arizona Diamondbacks signed free agent RHP Gustavo De La Cruz to a minor league contract. |
| 04/07/26 | Arizona Diamondbacks signed free agent RHP Joe Ross to a minor league contract. |
| 04/07/26 | Arizona Diamondbacks placed 1B Carlos Santana on the 10-day injured list retroactive to April 6, 2026. Strained right adductor. |
| 04/07/26 | Arizona Diamondbacks transferred SS Jordan Lawlar from the 10-day injured list to the 60-day injured list. Right wrist fracture. |
| 04/07/26 | Arizona Diamondbacks selected the contract of 1B Luken Baker from Reno Aces. |
| 04/06/26 | Arizona Diamondbacks signed free agent RHP Blake Cederlind to a minor league contract. |
| 04/05/26 | Arizona Diamondbacks sent RHP Joe Ross outright to Reno Aces. |
| 04/03/26 | Arizona Diamondbacks sent RHP Merrill Kelly on a rehab assignment to Reno Aces. |
| 04/03/26 | Arizona Diamondbacks activated C Adrian Del Castillo. |
| 04/03/26 | Arizona Diamondbacks placed SS Jordan Lawlar on the 10-day injured list. Right wrist fracture. |
| 04/03/26 | Arizona Diamondbacks designated RHP Joe Ross for assignment. |
| 04/03/26 | Arizona Diamondbacks selected the contract of RHP Taylor Rashi from Reno Aces. |
| 04/02/26 | Arizona Diamondbacks reassigned C Adrian Del Castillo to the minor leagues. |
| 04/01/26 | Los Angeles Dodgers claimed RHP Grant Holman off waivers from Arizona Diamondbacks. |