| 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 |
| 3/12/2020 | BB | Quantrill | 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 |
| 3/18/2020 | BB | La Stella | Acquired via trade | ACS | | After |
| 3/18/2020 | BB | Madrigal | Traded away | ACS | | After |
| 3/19/2020 | BB | Madrigal | Signed | | | Before |
| 3/19/2020 | BB | Madrigal | Demoted to reserve roster | | | Before |
| 3/19/2020 | BB | Mazara | Demoted to reserve roster | | | Before |
| 3/21/2020 | BB | RLewis | Demoted to reserve roster | | | Before |
| 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 | BB | Chisholm | Demoted to reserve roster | | | Before |
| 4/5/2020 | BB | Madrigal | Demoted to reserve roster | | | Before |
| 4/5/2020 | BB | Solak | Signed | | | Before |
| 4/5/2020 | BB | Solak | 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 | End | Anderson, I | Demoted to reserve roster | | | Before |
| 4/5/2020 | End | Greene | Demoted to reserve roster | | | Before |
| 4/5/2020 | End | Kopech | Demoted to reserve roster | | | Before |
| 4/5/2020 | End | May,D | Signed | | | Before |
| 4/5/2020 | End | May,D | Demoted to reserve roster | | | Before |
| 4/5/2020 | End | Puk | Signed | | | Before |
| 4/5/2020 | End | Puk | Demoted to reserve roster | | | Before |
| 4/5/2020 | End | Tramell | Demoted to reserve roster | | | Before |
| 4/5/2020 | End | Whitley | Demoted to reserve roster | | | Before |
| 4/5/2020 | End | Wright | 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 |
| 4/5/2020 | VD | Barreto | Signed | | | Before |
| 4/5/2020 | VD | Barreto | Demoted to reserve roster | | | Before |
| 4/5/2020 | VD | Lodolo | Demoted to reserve roster | | | Before |
| 4/5/2020 | VD | Mize | Demoted to reserve roster | | | Before |
| 4/5/2020 | VD | Taveras | Demoted to reserve roster | | | Before |
| 4/5/2020 | VD | Tucker,K | Signed | | | Before |
| 4/5/2020 | VD | Tucker,K | Demoted to reserve roster | | | Before |