Astros Roster & Staff
Transactions
| Date | Transaction |
| 09/22/26 | Houston Astros sent CF Jorge Barrosa outright to Sugar Land Space Cowboys. |
| 09/22/26 | Houston Astros sent CF Jorge Barrosa outright to Sugar Land Space Cowboys. |
| 09/19/26 | Houston Astros placed RHP Enyel De Los Santos on the 15-day injured list. Right knee tendinitis. |
| 09/19/26 | Houston Astros sent RHP Mike Burrows on a rehab assignment to Sugar Land Space Cowboys. |
| 09/19/26 | Houston Astros designated CF Jorge Barrosa for assignment. |
| 09/19/26 | Houston Astros sent RHP Mike Burrows on a rehab assignment to Sugar Land Space Cowboys. |
| 09/19/26 | Houston Astros activated CF Brice Matthews from the 60-day injured list. |
| 09/19/26 | Houston Astros recalled RHP Logan VanWey from Sugar Land Space Cowboys. |
| 09/17/26 | Houston Astros activated LF Taylor Trammell from the paternity list. |
| 09/17/26 | Houston Astros optioned LF Joey Loperfido to Sugar Land Space Cowboys. |
| 09/16/26 | DH Yordan Alvarez changed number to 44. |
| 09/16/26 | 2B Jose Altuve changed number to 27. |
| 09/16/26 | LHP Josh Hader changed number to 71. |
| 09/16/26 | SS Jeremy Peña changed number to 3. |
| 09/16/26 | LF Nelson Velázquez changed number to 30. |
| 09/16/26 | C Christian Vázquez changed number to 2. |
| 09/15/26 | SS Jeremy Peña changed number to 21. |
| 09/15/26 | Houston Astros placed LF Taylor Trammell on the paternity list. |
| 09/15/26 | LF Nelson Velázquez changed number to 21. |
| 09/15/26 | LHP Josh Hader changed number to 21. |
| 09/15/26 | DH Yordan Alvarez changed number to 21. |
| 09/15/26 | 2B Jose Altuve changed number to 21. |
| 09/15/26 | C Christian Vázquez changed number to 21. |
| 09/15/26 | Houston Astros recalled LF Joey Loperfido from Sugar Land Space Cowboys. |
| 09/10/26 | Houston Astros sent CF Brice Matthews on a rehab assignment to Sugar Land Space Cowboys. |
| 09/07/26 | Houston Astros activated CF Jorge Barrosa. |
| 09/07/26 | Houston Astros optioned CF Jake Meyers to Sugar Land Space Cowboys. |
| 09/06/26 | Houston Astros placed RHP Mike Burrows on the 60-day injured list. |
| 09/06/26 | Houston Astros claimed CF Jorge Barrosa off waivers from Arizona Diamondbacks. |
| 09/06/26 | Houston Astros optioned RHP Kai-Wei Teng to Sugar Land Space Cowboys. |
| 09/06/26 | Houston Astros recalled RHP Miguel Ullola from Sugar Land Space Cowboys. |
| 09/04/26 | Houston Astros placed LHP Steven Okert on the 15-day injured list retroactive to September 1, 2026. Right hamstring strain. |
| 09/04/26 | Houston Astros recalled LHP Bryan King from Sugar Land Space Cowboys. |
| 09/01/26 | Houston Astros recalled CF Jake Meyers from Sugar Land Space Cowboys. |
| 09/01/26 | Houston Astros recalled RHP Ronel Blanco from Sugar Land Space Cowboys. |