Giants Roster & Staff
Transactions
| Date | Transaction |
| 08/31/18 | San Francisco Giants traded RF Andrew McCutchen and cash to New York Yankees for 2B Abiatal Avelino and RHP Juan De Paula. |
| 08/31/18 | San Francisco Giants selected the contract of Chris Shaw from Sacramento River Cats. |
| 08/31/18 | San Francisco Giants traded RF Andrew McCutchen and cash to New York Yankees for 2B Abiatal Avelino and RHP Juan De Paula. |
| 08/31/18 | San Francisco Giants traded RF Andrew McCutchen and cash to New York Yankees for 2B Abiatal Avelino and RHP Juan De Paula. |
| 08/29/18 | San Francisco Giants placed CF Steven Duggar on the 10-day disabled list. Left shoulder bruise. |
| 08/29/18 | San Francisco Giants selected the contract of CF Gregor Blanco from Sacramento River Cats. |
| 08/29/18 | San Francisco Giants transferred C Buster Posey from the 10-day disabled list to the 60-day disabled list. Right hip impingement. |
| 08/26/18 | San Francisco Giants recalled Aramis Garcia from Sacramento River Cats. |
| 08/26/18 | San Francisco Giants placed C Buster Posey on the 10-day disabled list retroactive to August 25, 2018. Right hip impingement. |
| 08/24/18 | San Francisco Giants optioned RHP Casey Kelly to Sacramento River Cats. |
| 08/24/18 | Dereck Rodriguez roster status changed by San Francisco Giants. |
| 08/24/18 | San Francisco Giants signed free agent LHP Luis Castillo to a minor league contract. |
| 08/22/18 | San Francisco Giants sent RHP Jeff Samardzija on a rehab assignment to Richmond Flying Squirrels. |
| 08/21/18 | San Francisco Giants recalled RHP Chris Stratton from Richmond Flying Squirrels. |
| 08/21/18 | San Francisco Giants optioned RHP Derek Law to Sacramento River Cats. |
| 08/21/18 | San Francisco Giants signed free agent RHP Jason Bonilla to a minor league contract. |
| 08/20/18 | San Francisco Giants recalled Derek Law from Sacramento River Cats. |
| 08/20/18 | San Francisco Giants optioned RHP Ray Black to Sacramento River Cats. |
| 08/18/18 | San Francisco Giants transferred 3B Pablo Sandoval from the 10-day disabled list to the 60-day disabled list. Right hamstring strain. |
| 08/18/18 | San Francisco Giants activated RHP Hunter Strickland from the 60-day disabled list. |
| 08/17/18 | San Francisco Giants placed RHP Dereck Rodriguez on the 10-day disabled list retroactive to August 13, 2018. Hamstring strain. |
| 08/15/18 | San Francisco Giants signed free agent C Rayner Santana to a minor league contract. |
| 08/14/18 | San Francisco Giants optioned RHP Pierce Johnson to Sacramento River Cats. |
| 08/14/18 | San Francisco Giants activated 1B Brandon Belt from the 10-day injured list. |
| 08/13/18 | San Francisco Giants signed free agent RHP Jose Perez to a minor league contract. |
| 08/13/18 | San Francisco Giants signed free agent C Ronaldo Flores to a minor league contract. |
| 08/12/18 | San Francisco Giants signed free agent 1B Brock Stassi to a minor league contract. |
| 08/11/18 | San Francisco Giants sent 1B Brandon Belt on a rehab assignment to Sacramento River Cats. |
| 08/10/18 | San Francisco Giants selected the contract of Casey Kelly from Sacramento River Cats. |
| 08/10/18 | San Francisco Giants optioned RHP Derek Law to Sacramento River Cats. |
| 08/10/18 | San Francisco Giants transferred RHP Johnny Cueto from the 10-day disabled list to the 60-day disabled list. Right elbow strain. |
| 08/09/18 | San Francisco Giants sent RHP Hunter Strickland on a rehab assignment to Sacramento River Cats. |
| 08/06/18 | San Francisco Giants sent RHP Hunter Strickland on a rehab assignment to San Jose Giants. |
| 08/04/18 | San Francisco Giants optioned SS Kelby Tomlinson to Sacramento River Cats. |
| 08/04/18 | San Francisco Giants optioned RHP Chris Stratton to Sacramento River Cats. |
| 08/04/18 | San Francisco Giants recalled Pierce Johnson from Sacramento River Cats. |
| 08/04/18 | San Francisco Giants sent RHP Hunter Strickland on a rehab assignment to AZL Giants Black. |
| 08/04/18 | San Francisco Giants recalled Derek Law from Sacramento River Cats. |
| 08/03/18 | San Francisco Giants signed free agent OF Cesar Puello to a minor league contract. |