| Transactions |
| Date | Team | Player | Type | OthTm | EffDate | When |
| 2/23/2020 | PL | Lowe,N | Demoted to reserve roster | | | Before |
| 2/23/2020 | PL | Winker | Demoted to reserve roster | | | Before |
| 3/8/2020 | PL | Hamels | Promoted to active roster | | | Before |
| 3/8/2020 | PL | Richards,T | Demoted to reserve roster | | | Before |
| 3/13/2020 | PL | Lopez,P | Demoted to reserve roster | | | Before |
| 3/13/2020 | SFR | Stanton | Demoted to reserve roster | | | Before |
| 3/18/2020 | ACS | La Stella | Traded away | BB | | After |
| 3/18/2020 | ACS | Madrigal | Acquired via trade | BB | | After |
| 4/3/2020 | PL | Hamels | Demoted to reserve roster | | | Before |
| 4/3/2020 | PL | Young | Promoted to active roster | | | Before |
| 4/5/2020 | AH | Cruz | Demoted to reserve roster | | | Before |
| 4/5/2020 | AH | Gennett | Signed | | | Before |
| 4/5/2020 | AH | Gennett | Demoted to reserve roster | | | Before |
| 4/5/2020 | AH | Huff | Demoted to reserve roster | | | Before |
| 4/5/2020 | AH | Martin | Demoted to reserve roster | | | Before |
| 4/5/2020 | BC | Detmers | Demoted to reserve roster | | | Before |
| 4/5/2020 | BC | Gore | Demoted to reserve roster | | | Before |
| 4/5/2020 | BC | Mesa, V | Demoted to reserve roster | | | Before |
| 4/5/2020 | BC | Ramos, H | Demoted to reserve roster | | | Before |
| 4/5/2020 | BTB | Howard | Demoted to reserve roster | | | Before |
| 4/5/2020 | BTB | India | Demoted to reserve roster | | | Before |
| 4/5/2020 | BTB | Keuchel | Demoted to reserve roster | | | Before |
| 4/5/2020 | BTB | Kieboom | Signed | | | Before |
| 4/5/2020 | BTB | Kieboom | Demoted to reserve roster | | | Before |
| 4/5/2020 | PL | Abrams | Demoted to reserve roster | | | Before |
| 4/5/2020 | PL | Anderson,N | Demoted to reserve roster | | | Before |
| 4/5/2020 | PL | Bleday | Demoted to reserve roster | | | Before |
| 4/5/2020 | PL | Brunson | Demoted to reserve roster | | | Before |
| 4/5/2020 | PL | Casas | Demoted to reserve roster | | | Before |
| 4/5/2020 | PL | Edwards | Demoted to reserve roster | | | Before |
| 4/5/2020 | PL | Groshans | Demoted to reserve roster | | | Before |
| 4/5/2020 | PL | Jones, N | Demoted to reserve roster | | | Before |
| 4/5/2020 | PL | Jung | Demoted to reserve roster | | | Before |
| 4/5/2020 | PL | Luciano | Demoted to reserve roster | | | Before |
| 4/5/2020 | PL | Lux | Signed | | | Before |
| 4/5/2020 | PL | Lux | Demoted to reserve roster | | | Before |
| 4/5/2020 | PL | Pearson | Demoted to reserve roster | | | Before |
| 4/5/2020 | PL | Robinson | Demoted to reserve roster | | | Before |
| 4/5/2020 | PL | Sanchez | Demoted to reserve roster | | | Before |