Astros Roster & Staff
Transactions
| Date | Transaction |
| 08/24/26 | Houston Astros signed free agent LF Nelson Velázquez. |
| 08/24/26 | Houston Astros optioned 2B Raynel Delgado to Sugar Land Space Cowboys. |
| 08/23/26 | Houston Astros sent LF Nelson Velázquez outright to Sugar Land Space Cowboys. |
| 08/21/26 | Houston Astros optioned LHP Bryan King to Sugar Land Space Cowboys. |
| 08/21/26 | Houston Astros recalled RHP Kai-Wei Teng from Sugar Land Space Cowboys. |
| 08/20/26 | Houston Astros designated LF Nelson Velázquez for assignment. |
| 08/20/26 | Houston Astros recalled 2B Raynel Delgado from Sugar Land Space Cowboys. |
| 08/19/26 | Houston Astros transferred CF Brice Matthews from the 10-day injured list to the 60-day injured list. Left knee sprain. |
| 08/19/26 | Houston Astros selected the contract of RHP Ethan Pecko from Sugar Land Space Cowboys. |
| 08/19/26 | Houston Astros optioned RHP Miguel Ullola to Sugar Land Space Cowboys. |
| 08/16/26 | Houston Astros recalled RHP Miguel Ullola from Sugar Land Space Cowboys. |
| 08/16/26 | Houston Astros optioned RHP Ronel Blanco to Sugar Land Space Cowboys. |
| 08/14/26 | Houston Astros sent RHP Mike Burrows on a rehab assignment to Sugar Land Space Cowboys. |
| 08/13/26 | San Francisco Giants claimed 3B Shay Whitcomb off waivers from Houston Astros. |
| 08/11/26 | Houston Astros activated LF Nelson Velázquez. |
| 08/11/26 | Houston Astros optioned CF Jake Meyers to Sugar Land Space Cowboys. |
| 08/10/26 | Houston Astros designated 3B Shay Whitcomb for assignment. |
| 08/10/26 | Houston Astros claimed LF Nelson Velázquez off waivers from St. Louis Cardinals. |
| 08/07/26 | Houston Astros recalled CF Jake Meyers from Sugar Land Space Cowboys. |
| 08/06/26 | Houston Astros optioned LF Zach Dezenzo to Sugar Land Space Cowboys. |
| 08/03/26 | Houston Astros activated CF Daulton Varsho. |
| 08/03/26 | Houston Astros activated CF Daulton Varsho. |
| 08/03/26 | Houston Astros optioned CF Lucas Spence to Sugar Land Space Cowboys. |
| 08/03/26 | Toronto Blue Jays traded CF Daulton Varsho and cash to Houston Astros for RHP Spencer Arrighetti. |
| 08/03/26 | Toronto Blue Jays traded CF Daulton Varsho and cash to Houston Astros for RHP Spencer Arrighetti. |