Astros Roster & Staff
Transactions
| Date | Transaction |
| 07/31/19 | Arizona Diamondbacks traded RHP Zack Greinke and cash to Houston Astros for RHP Corbin Martin, RHP J.B. Bukauskas, 3B Josh Rojas and LF Seth Beer. |
| 07/31/19 | Arizona Diamondbacks traded RHP Zack Greinke and cash to Houston Astros for RHP Corbin Martin, RHP J.B. Bukauskas, 3B Josh Rojas and LF Seth Beer. |
| 07/31/19 | Arizona Diamondbacks traded RHP Zack Greinke and cash to Houston Astros for RHP Corbin Martin, RHP J.B. Bukauskas, 3B Josh Rojas and LF Seth Beer. |
| 07/31/19 | Houston Astros traded C Max Stassi to Los Angeles Angels for RF Raider Uceta and RF Rainier Rivas. |
| 07/31/19 | Houston Astros traded C Max Stassi to Los Angeles Angels for RF Raider Uceta and RF Rainier Rivas. |
| 07/31/19 | Houston Astros traded C Max Stassi to Los Angeles Angels for RF Raider Uceta and RF Rainier Rivas. |
| 07/31/19 | Houston Astros traded CF Tony Kemp to Chicago Cubs for Martin Maldonado. |
| 07/31/19 | Houston Astros traded CF Tony Kemp to Chicago Cubs for Martin Maldonado. |
| 07/31/19 | Houston Astros traded RF Derek Fisher to Toronto Blue Jays for RHP Aaron Sanchez, LF Cal Stevenson and RHP Joe Biagini. |
| 07/31/19 | Houston Astros traded RF Derek Fisher to Toronto Blue Jays for RHP Aaron Sanchez, LF Cal Stevenson and RHP Joe Biagini. |
| 07/31/19 | Houston Astros traded RF Derek Fisher to Toronto Blue Jays for RHP Aaron Sanchez, LF Cal Stevenson and RHP Joe Biagini. |
| 07/31/19 | Houston Astros traded RF Derek Fisher to Toronto Blue Jays for RHP Aaron Sanchez, LF Cal Stevenson and RHP Joe Biagini. |
| 07/31/19 | Arizona Diamondbacks traded RHP Zack Greinke and cash to Houston Astros for RHP Corbin Martin, RHP J.B. Bukauskas, 3B Josh Rojas and LF Seth Beer. |
| 07/31/19 | Houston Astros activated C Martin Maldonado. |
| 07/31/19 | Houston Astros recalled Bryan Abreu from Corpus Christi Hooks. |
| 07/31/19 | Arizona Diamondbacks traded RHP Zack Greinke and cash to Houston Astros for RHP Corbin Martin, RHP J.B. Bukauskas, 3B Josh Rojas and LF Seth Beer. |
| 07/30/19 | Houston Astros placed RHP Ryan Pressly on the 10-day injured list retroactive to July 27, 2019. Right knee soreness. |
| 07/30/19 | Houston Astros placed LHP Reymin Guduan on the restricted list. |
| 07/30/19 | CF Jake Marisnick roster status changed by Houston Astros. |
| 07/26/19 | Houston Astros designated CF Tony Kemp for assignment. |
| 07/26/19 | Houston Astros activated SS Carlos Correa from the 60-day injured list. |
| 07/25/19 | Houston Astros traded 1B Tyler White to Los Angeles Dodgers for RHP Andre Scrubb. |
| 07/25/19 | Houston Astros traded 1B Tyler White to Los Angeles Dodgers for RHP Andre Scrubb. |
| 07/23/19 | Houston Astros placed RHP Josh James on the 10-day injured list retroactive to July 22, 2019. Right arm fatigue. |
| 07/23/19 | Houston Astros recalled Cy Sneed from Round Rock Express. |
| 07/22/19 | Houston Astros activated 2B Aledmys Diaz from the 10-day injured list. |
| 07/22/19 | Houston Astros optioned RHP Rogelio Armenteros to Round Rock Express. |
| 07/20/19 | Houston Astros designated 1B Tyler White for assignment. |
| 07/20/19 | Houston Astros recalled Jose Urquidy from Round Rock Express. |
| 07/19/19 | Houston Astros sent 2B Aledmys Diaz on a rehab assignment to Corpus Christi Hooks. |
| 07/16/19 | Houston Astros optioned LHP Framber Valdez to Round Rock Express. |
| 07/16/19 | Houston Astros recalled Rogelio Armenteros from Round Rock Express. |
| 07/15/19 | Houston Astros sent 2B Aledmys Diaz on a rehab assignment to Round Rock Express. |
| 07/15/19 | Houston Astros sent SS Carlos Correa on a rehab assignment to Round Rock Express. |
| 07/12/19 | Houston Astros activated RHP Joe Smith from the 60-day injured list. |
| 07/12/19 | Houston Astros optioned RHP Cy Sneed to Round Rock Express. |
| 07/12/19 | Houston Astros transferred SS Carlos Correa from the 10-day injured list to the 60-day injured list. Fractured rib. |
| 07/11/19 | CF Jake Marisnick roster status changed by Houston Astros. |
| 07/11/19 | Houston Astros recalled Framber Valdez from Round Rock Express. |
| 07/11/19 | Houston Astros activated CF Jake Marisnick. |
| 07/10/19 | Houston Astros sent RHP Brad Peacock on a rehab assignment to Corpus Christi Hooks. |
| 07/09/19 | Houston Astros sent RHP Joe Smith on a rehab assignment to Corpus Christi Hooks. |
| 07/09/19 | Houston Astros signed free agent OF Roilan Machandy to a minor league contract. |
| 07/08/19 | Chicago White Sox claimed 1B AJ Reed off waivers from Houston Astros. |
| 07/08/19 | Houston Astros optioned RHP Jose Urquidy to Round Rock Express. |
| 07/02/19 | Houston Astros signed free agent OF Everette Cooper to a minor league contract. |
| 07/02/19 | Houston Astros selected the contract of Jose Urquidy from Round Rock Express. |
| 07/02/19 | Houston Astros signed OF James Nix. |
| 07/02/19 | Houston Astros signed free agent IF Luis Encarnacion to a minor league contract. |
| 07/02/19 | Houston Astros signed free agent SS Dauri Lorenzo to a minor league contract. |
| 07/02/19 | Houston Astros designated 1B AJ Reed for assignment. |
| 07/02/19 | Houston Astros signed free agent OF Richi Gonzalez to a minor league contract. |
| 07/02/19 | Houston Astros signed free agent IF Josue Payano to a minor league contract. |
| 07/02/19 | Houston Astros signed free agent RHP Elvis Garcia to a minor league contract. |
| 07/02/19 | Houston Astros signed free agent RHP Eurys Martich to a minor league contract. |
| 07/02/19 | Houston Astros signed free agent OF Christopher Morales to a minor league contract. |
| 07/02/19 | Houston Astros signed free agent C Fernando Caldera to a minor league contract. |
| 07/02/19 | Houston Astros signed free agent OF Denfry De La Cruz to a minor league contract. |
| 07/02/19 | Houston Astros signed free agent OF Luis Perez to a minor league contract. |
| 07/02/19 | Houston Astros signed free agent C Juan Santander to a minor league contract. |
| 07/02/19 | Houston Astros signed free agent RHP Danyuri Guzman to a minor league contract. |
| 07/01/19 | Houston Astros optioned LHP Reymin Guduan to Round Rock Express. |
| 07/01/19 | Houston Astros signed OF Jordan Brewer. |