| Transactions |
| Date | Team | Player | Type | OthTm | EffDate | When | Appl |
| 4/8/1979 | Tex | Matlack | Placed on Injured List | | 4/8/1979 | Before | Yes |
| 4/15/1979 | Tex | Rajsich | Promoted to active roster | | | Before | Yes |
| 5/1/1979 | Tex | Matlack | Activated from Injured List | | | Before | No |
| 5/1/1979 | Tex | Roberts | Demoted to reserve roster | | | Before | No |
| 5/4/1979 | Tex | Campaneris | Traded away | Cal | | Before | No |
| 5/4/1979 | Tex | Chalk | Acquired via trade | Cal | | Before | No |
| 5/6/1979 | Tex | Gamble | Placed on Injured List | | 5/6/1979 | Before | No |
| 5/6/1979 | Tex | Washington | Promoted to active roster | | | Before | No |
| 5/14/1979 | Tex | Roberts | Promoted to active roster | | | Before | No |
| 5/14/1979 | Tex | Washington | Demoted to reserve roster | | | Before | No |
| 6/1/1979 | Tex | Jorgensen | Placed on Injured List | | 6/1/1979 | Before | No |
| 6/2/1979 | Tex | Gamble | Activated from Injured List | | | Before | No |
| 6/2/1979 | Tex | Gray | Demoted to reserve roster | | | Before | No |
| 6/2/1979 | Tex | Holle | Promoted to active roster | | | Before | No |
| 6/16/1979 | Tex | Chalk | Traded away | Oak | | Before | No |
| 6/16/1979 | Tex | Darwin | Promoted to active roster | | | Before | No |
| 6/16/1979 | Tex | Farmer | Traded away | ChA | | Before | No |
| 6/16/1979 | Tex | Holle | Traded away | ChA | | Before | No |
| 6/16/1979 | Tex | Johnson | Acquired via trade | Oak | | Before | No |
| 6/16/1979 | Tex | Soderholm | Acquired via trade | ChA | | Before | No |
| 6/16/1979 | Tex | Washington | Promoted to active roster | | | Before | No |
| 6/17/1979 | Tex | Ellis,D | Traded away | NYN | | Before | No |
| 7/1/1979 | Tex | Jorgensen | Activated from Injured List | | | Before | No |
| 7/1/1979 | Tex | Rajsich | Demoted to reserve roster | | | Before | No |
| 7/10/1979 | Tex | Gleaton | Promoted to active roster | | | Before | No |
| 7/10/1979 | Tex | Matlack | Placed on Injured List | | 7/10/1979 | Before | No |
| 7/11/1979 | Tex | Rajsich | Promoted to active roster | | | Before | No |
| 7/11/1979 | Tex | Washington | Demoted to reserve roster | | | Before | No |
| 7/22/1979 | Tex | Babcock | Promoted to active roster | | | Before | No |
| 7/22/1979 | Tex | Gleaton | Demoted to reserve roster | | | Before | No |
| 7/28/1979 | Tex | Wills | Placed on Injured List | | 7/28/1979 | Before | No |
| 7/30/1979 | Tex | Rivers | Acquired via trade | NYA | | Before | No |
| 8/2/1979 | Tex | Gamble | Traded away | NYA | | Before | No |
| 8/3/1979 | Tex | Alexander | Placed on Injured List | | 8/3/1979 | Before | No |
| 8/6/1979 | Tex | Grubb | Placed on Injured List | | 8/6/1979 | Before | No |
| 8/7/1979 | Tex | Allard | Promoted to active roster | | | Before | No |
| 8/7/1979 | Tex | Gleaton | Promoted to active roster | | | Before | No |
| 8/10/1979 | Tex | Washington | Promoted to active roster | | | Before | No |
| 8/11/1979 | Tex | Roberts | Placed on Injured List | | 8/11/1979 | Before | No |
| 8/11/1979 | Tex | Wills | Activated from Injured List | | | Before | No |
| 8/13/1979 | Tex | Babcock | Demoted to reserve roster | | | Before | No |
| 8/13/1979 | Tex | Montanez | Acquired via trade | NYN | | Before | No |
| 8/28/1979 | Tex | Alexander | Activated from Injured List | | | Before | No |
| 8/28/1979 | Tex | Gleaton | Demoted to reserve roster | | | Before | No |
| 9/1/1979 | Tex | Babcock | Promoted to active roster | | | Before | No |
| 9/1/1979 | Tex | Gleaton | Promoted to active roster | | | Before | No |
| 9/1/1979 | Tex | Gray | Promoted to active roster | | | Before | No |
| 9/1/1979 | Tex | Grubb | Activated from Injured List | | | Before | No |
| 9/1/1979 | Tex | Mahlberg | Promoted to active roster | | | Before | No |
| 9/1/1979 | Tex | McCall | Promoted to active roster | | | Before | No |
| 9/12/1979 | Tex | Matlack | Activated from Injured List | | | Before | No |
| 9/30/1979 | Tex | Roberts | Activated from Injured List | | | Before | No |