| Transactions |
| Date | Team | Player | Type | OthTm | EffDate | When |
| 4/16/1993 | ROK | Leibrandt | Released | | | Before |
| 4/22/1993 | OTR | McGwire | Demoted to reserve roster | | | Before |
| 4/22/1993 | OTR | Naehring | Demoted to reserve roster | | | Before |
| 5/10/1993 | WIZ | Carpenter | Demoted to reserve roster | | | Before |
| 5/10/1993 | WIZ | Reed | Demoted to reserve roster | | | Before |
| 6/20/1993 | CRH | Gallagher | Traded away | LON | | After |
| 6/20/1993 | CRH | Martinez | Acquired via trade | LON | | After |
| 6/20/1993 | LON | Gallagher | Acquired via trade | CRH | | After |
| 6/20/1993 | LON | Martinez | Traded away | CRH | | After |
| 7/27/1993 | EDG | Eisenreich | Demoted to reserve roster | | | Before |
| 7/27/1993 | EDG | Franco | Demoted to reserve roster | | | Before |
| 7/27/1993 | EDG | James | Demoted to reserve roster | | | Before |
| 8/1/1993 | GEO | Belcher | Traded away | Pal | | After |
| 8/1/1993 | GEO | Oliver | Acquired via trade | Pal | | After |
| 8/1/1993 | Pal | Belcher | Acquired via trade | GEO | | After |
| 8/1/1993 | Pal | Oliver | Traded away | GEO | | After |
| 8/2/1993 | CRH | Mesa | Demoted to reserve roster | | | Before |
| 8/2/1993 | CRH | Perez | Demoted to reserve roster | | | Before |
| 8/2/1993 | CRH | Riles | Demoted to reserve roster | | | Before |
| 8/2/1993 | GEO | Oliver | Demoted to reserve roster | | | Before |
| 8/2/1993 | GEO | Williams,Mit | Promoted to active roster | | | Before |
| 8/2/1993 | MAD | Jones | Demoted to reserve roster | | | Before |
| 8/2/1993 | MAD | McDowell | Demoted to reserve roster | | | Before |
| 8/2/1993 | MID | Felix | Demoted to reserve roster | | | Before |
| 8/2/1993 | MID | Hanson | Demoted to reserve roster | | | Before |
| 8/2/1993 | MID | Hill | Demoted to reserve roster | | | Before |
| 8/2/1993 | MID | Winfield | Demoted to reserve roster | | | Before |
| 8/2/1993 | OTR | Owen | Demoted to reserve roster | | | Before |
| 8/2/1993 | Pal | McReynolds | Demoted to reserve roster | | | Before |
| 8/2/1993 | TON | Clayton | Demoted to reserve roster | | | Before |
| 8/2/1993 | TON | Coleman | Demoted to reserve roster | | | Before |
| 8/2/1993 | WIZ | Vander Wal | Demoted to reserve roster | | | Before |
| 8/19/1993 | MAD | Felix | Acquired via trade | MID | | After |
| 8/19/1993 | MAD | McMichael | Traded away | MID | | After |
| 8/19/1993 | MID | Felix | Traded away | MAD | | After |
| 8/19/1993 | MID | McMichael | Acquired via trade | MAD | | After |
| 8/20/1993 | MID | Willis | Demoted to reserve roster | | | Before |
| 8/26/1993 | MID | Plunk | Demoted to reserve roster | | | Before |
| 8/26/1993 | MID | Willis | Promoted to active roster | | | Before |
| 10/6/1993 | MUL | Luebbers | Demoted to reserve roster | | | Before |