Giants Roster & Staff
Transactions
| Date | Transaction |
| 01/31/26 | San Francisco Giants signed free agent LHP Santiago Guerrero to a minor league contract. |
| 01/30/26 | San Francisco Giants activated LF Harrison Bader. |
| 01/30/26 | San Francisco Giants signed free agent OF Jose Valdez to a minor league contract. |
| 01/30/26 | San Francisco Giants signed free agent LF Harrison Bader. |
| 01/30/26 | San Francisco Giants signed free agent 2B Israel Alfonse to a minor league contract. |
| 01/30/26 | San Francisco Giants traded RHP Kai-Wei Teng to Houston Astros for C Jancel Villarroel and Future Considerations. |
| 01/30/26 | San Francisco Giants traded RHP Kai-Wei Teng to Houston Astros for C Jancel Villarroel and Future Considerations. |
| 01/23/26 | San Francisco Giants signed free agent RHP Johan Rengifo to a minor league contract. |
| 01/22/26 | CF Drew Gilbert changed number to 1. |
| 01/22/26 | 1B Bryce Eldridge changed number to 8. |
| 01/22/26 | RF Jerar Encarnacion changed number to 19. |
| 01/22/26 | San Francisco Giants traded C Carlos Martinez to Miami Marlins for cash. |
| 01/19/26 | San Francisco Giants signed free agent RHP Alexis Gonzalez to a minor league contract. |
| 01/17/26 | San Francisco Giants signed free agent RHP Brad Deppermann to a minor league contract. |
| 01/16/26 | C Eric Haase roster status changed by San Francisco Giants. |
| 01/16/26 | San Francisco Giants signed free agent C Eric Haase to a minor league contract. |
| 01/15/26 | San Francisco Giants signed free agent OF Angelo Ugueto to a minor league contract. |
| 01/15/26 | San Francisco Giants signed free agent SS Luis Hernandez to a minor league contract. |
| 01/15/26 | San Francisco Giants signed free agent RHP Mitch White to a minor league contract. |
| 01/15/26 | RHP Mitch White assigned to San Francisco Giants. |
| 01/13/26 | Chicago Cubs claimed CF Justin Dean off waivers from San Francisco Giants. |
| 01/12/26 | San Francisco Giants signed free agent OF Jared Oliva to a minor league contract. |
| 01/12/26 | LHP Nick Margevicius roster status changed by San Francisco Giants. |
| 01/12/26 | OF Jared Oliva roster status changed by San Francisco Giants. |
| 01/12/26 | San Francisco Giants signed free agent LHP Nick Margevicius to a minor league contract. |
| 01/07/26 | Los Angeles Angels claimed OF Wade Meckler off waivers from San Francisco Giants. |
| 01/06/26 | San Francisco Giants designated CF Justin Dean for assignment. |
| 01/05/26 | San Francisco Giants signed free agent RHP Tyler Mahle. |
| 01/05/26 | Washington Nationals claimed LF Joey Wiemer off waivers from San Francisco Giants. |