| Transactions |
| Date | Team | Player | Type | OthTm | EffDate | When |
| 4/2/1986 | ASP | Cerone | Placed on Injured List | | 4/2/1986 | Before |
| 4/2/1986 | ASP | Skinner | Promoted to active roster | | | Before |
| 4/2/1986 | HNT | Kennedy | Promoted to active roster | | | Before |
| 4/2/1986 | HNT | White,D | Demoted to reserve roster | | | Before |
| 4/2/1986 | NJD | Hernandez,K | Promoted to active roster | | | Before |
| 4/2/1986 | NJD | McGriff | Demoted to reserve roster | | | Before |
| 4/2/1986 | RIN | Eichhorn | Placed on Injured List | | 4/2/1986 | Before |
| 4/2/1986 | RIN | Tekulve | Promoted to active roster | | | Before |
| 4/3/1986 | ASP | Bell,J | Demoted to reserve roster | | | Before |
| 4/3/1986 | ASP | Gonzales | Promoted to active roster | | | Before |
| 4/3/1986 | ASP | Skinner | Demoted to reserve roster | | | Before |
| 4/3/1986 | ASP | Sullivan | Promoted to active roster | | | Before |
| 4/3/1986 | AVI | Hrbek | Promoted to active roster | | | Before |
| 4/3/1986 | AVI | Kingery | Demoted to reserve roster | | | Before |
| 4/3/1986 | CST | Brown,K | Promoted to active roster | | | Before |
| 4/3/1986 | CST | Rasmussen | Placed on Injured List | | 4/3/1986 | Before |
| 4/3/1986 | JTB | Boone | Promoted to active roster | | | Before |
| 4/3/1986 | JTB | Slaught | Demoted to reserve roster | | | Before |
| 4/3/1986 | OKI | Manrique | Promoted to active roster | | | Before |
| 4/3/1986 | OKI | Samuel | Placed on Injured List | | 4/3/1986 | Before |
| 4/5/1986 | AND | Bradley,S | Promoted to active roster | | | Before |
| 4/5/1986 | AND | Fitzgerald | Placed on Injured List | | 4/5/1986 | Before |
| 4/5/1986 | HAM | Nokes | Demoted to reserve roster | | | Before |
| 4/5/1986 | HAM | Virgil | Promoted to active roster | | | Before |
| 4/5/1986 | HNT | Kennedy | Demoted to reserve roster | | | Before |
| 4/5/1986 | HNT | White,D | Promoted to active roster | | | Before |
| 4/8/1986 | ASP | Shelby | Placed on Injured List | | 4/5/1986 | Before |
| 4/8/1986 | ASP | Skinner | Promoted to active roster | | | Before |
| 4/8/1986 | ASP | Sullivan | Placed on Injured List | | 4/7/1986 | Before |
| 4/8/1986 | ASP | Wright,G | Promoted to active roster | | | Before |
| 4/11/1986 | NJD | Tolleson | Demoted to reserve roster | | | Before |
| 4/11/1986 | NJD | Valle | Promoted to active roster | | | Before |
| 4/12/1986 | ASP | Gallego | Demoted to reserve roster | | | Before |
| 4/12/1986 | ASP | Randolph | Promoted to active roster | | | Before |
| 4/12/1986 | NJD | Harper,B | Promoted to active roster | | | Before |
| 4/12/1986 | NJD | Valle | Demoted to reserve roster | | | Before |
| 4/13/1986 | ASP | Mercado | Promoted to active roster | | | Before |
| 4/13/1986 | ASP | Randolph | Demoted to reserve roster | | | Before |
| 4/13/1986 | CAR | Ashby | Promoted to active roster | | | Before |
| 4/13/1986 | CAR | Bando | Demoted to reserve roster | | | Before |
| 4/14/1986 | NJD | Harper,B | Demoted to reserve roster | | | Before |
| 4/14/1986 | NJD | Tolleson | Promoted to active roster | | | Before |
| 4/14/1986 | ROC | Blue | Promoted to active roster | | | Before |
| 4/14/1986 | ROC | Niekro,P | Placed on Injured List | | 4/12/1986 | Before |
| 4/15/1986 | CST | Brown,K | Demoted to reserve roster | | | Before |
| 4/15/1986 | HAM | Barrett | Promoted to active roster | | | Before |
| 4/15/1986 | HAM | Guerrero | Demoted to reserve roster | | | Before |
| 4/17/1986 | AND | Kutcher | Promoted to active roster | | | Before |
| 4/17/1986 | AND | Moseby | Placed on Injured List | | 4/17/1986 | Before |
| 4/18/1986 | ASP | Cerone | Activated from Injured List | | | Before |
| 4/18/1986 | ASP | Mercado | Demoted to reserve roster | | | Before |
| 4/18/1986 | CST | Rasmussen | Activated from Injured List | | | Before |
| 4/18/1986 | HNT | Browne | Demoted to reserve roster | | | Before |
| 4/18/1986 | HNT | Kennedy | Promoted to active roster | | | Before |
| 4/18/1986 | OKI | Manrique | Demoted to reserve roster | | | Before |
| 4/18/1986 | OKI | Samuel | Activated from Injured List | | | Before |
| 4/18/1986 | RIN | Eichhorn | Activated from Injured List | | | Before |
| 4/18/1986 | RIN | Tekulve | Demoted to reserve roster | | | Before |
| 4/20/1986 | ASP | Gonzales | Demoted to reserve roster | | | Before |
| 4/20/1986 | ASP | Randolph | Promoted to active roster | | | Before |
| 4/21/1986 | AND | Bradley,S | Demoted to reserve roster | | | Before |
| 4/21/1986 | AND | Fitzgerald | Activated from Injured List | | | Before |
| 4/22/1986 | ASP | Shelby | Activated from Injured List | | | Before |
| 4/22/1986 | ASP | Wright,G | Demoted to reserve roster | | | Before |
| 4/22/1986 | AVI | Concepcion | Promoted to active roster | | | Before |
| 4/22/1986 | AVI | Salazar,Ar | Demoted to reserve roster | | | Before |
| 4/22/1986 | NOR | Cox | Demoted to reserve roster | | | Before |
| 4/22/1986 | NOR | Deshaies | Promoted to active roster | | | Before |
| 4/22/1986 | OKI | Cary | Promoted to active roster | | | Before |
| 4/22/1986 | OKI | Haas | Demoted to reserve roster | | | Before |
| 4/23/1986 | ASP | Sullivan | Activated from Injured List | | | Before |
| 4/23/1986 | ASP | Sullivan | Demoted to reserve roster | | | Before |
| 4/24/1986 | AVI | Boever | Demoted to reserve roster | | | Before |
| 4/24/1986 | AVI | Ontiveros | Promoted to active roster | | | Before |
| 4/26/1986 | ASP | Javier | Demoted to reserve roster | | | Before |
| 4/26/1986 | ASP | Wright,G | Promoted to active roster | | | Before |
| 4/27/1986 | JTB | Swindell | Placed on Injured List | | 4/27/1986 | Before |
| 4/27/1986 | JTB | Thigpen | Promoted to active roster | | | Before |
| 4/27/1986 | ROC | Thon | Placed on Injured List | | 4/24/1986 | Before |
| 4/27/1986 | ROC | Washington,UL | Promoted to active roster | | | Before |
| 4/30/1986 | NJD | Dawley | Promoted to active roster | | | Before |
| 4/30/1986 | NJD | Welch | Placed on Injured List | | 4/30/1986 | Before |
| 5/1/1986 | QME | Fielder | Demoted to reserve roster | | | Before |
| 5/1/1986 | QME | Upshaw | Promoted to active roster | | | Before |
| 5/2/1986 | CAR | Nichols,R | Promoted to active roster | | | Before |
| 5/2/1986 | CAR | Walker,G | Demoted to reserve roster | | | Before |
| 5/2/1986 | ROC | Blue | Demoted to reserve roster | | | Before |
| 5/2/1986 | ROC | Niekro,P | Activated from Injured List | | | Before |
| 5/2/1986 | SAN | Collins | Demoted to reserve roster | | | Before |
| 5/2/1986 | SAN | Hubbard | Promoted to active roster | | | Before |
| 5/2/1986 | SAN | Little | Demoted to reserve roster | | | Before |
| 5/2/1986 | SAN | Williams,K | Promoted to active roster | | | Before |
| 5/3/1986 | ASP | Habyan | Promoted to active roster | | | Before |
| 5/3/1986 | ASP | Willis | Placed on Injured List | | 5/2/1986 | Before |
| 5/3/1986 | QME | Larkin | Demoted to reserve roster | | | Before |
| 5/3/1986 | QME | Riles | Promoted to active roster | | | Before |
| 5/5/1986 | NJD | Berenguer | Demoted to reserve roster | | | Before |
| 5/5/1986 | NJD | Sebra | Promoted to active roster | | | Before |
| 5/5/1986 | RIN | Pasqua | Promoted to active roster | | | Before |
| 5/5/1986 | TWP | Andersen | Promoted to active roster | | | Before |
| 5/5/1986 | TWP | Maddux,G | Demoted to reserve roster | | | Before |
| 5/6/1986 | RIN | Grubb | Demoted to reserve roster | | | Before |
| 5/6/1986 | RIN | Hassey | Placed on Injured List | | 5/6/1986 | Before |
| 5/6/1986 | RIN | Ortiz | Promoted to active roster | | | Before |
| 5/7/1986 | ASP | Heaton | Promoted to active roster | | | Before |
| 5/7/1986 | ASP | Pryor | Demoted to reserve roster | | | Before |
| 5/7/1986 | ASP | Quinones,L | Promoted to active roster | | | Before |
| 5/7/1986 | ASP | Ward,D | Demoted to reserve roster | | | Before |
| 5/9/1986 | HAM | Calhoun | Promoted to active roster | | | Before |
| 5/9/1986 | HAM | Cone | Demoted to reserve roster | | | Before |
| 5/9/1986 | OKI | Bernazard | Demoted to reserve roster | | | Before |
| 5/9/1986 | OKI | McGwire | Promoted to active roster | | | Before |
| 5/9/1986 | RIN | Bochy | Promoted to active roster | | | Before |
| 5/9/1986 | RIN | Santiago | Demoted to reserve roster | | | Before |
| 5/11/1986 | ROC | Thon | Activated from Injured List | | | Before |
| 5/11/1986 | ROC | Washington,UL | Demoted to reserve roster | | | Before |
| 5/12/1986 | ASP | Nipper | Promoted to active roster | | | Before |
| 5/12/1986 | ASP | Swift | Placed on Injured List | | 5/12/1986 | Before |
| 5/12/1986 | JTB | Swindell | Activated from Injured List | | | Before |
| 5/12/1986 | JTB | Swindell | Demoted to reserve roster | | | Before |
| 5/12/1986 | RIN | Farr | Demoted to reserve roster | | | Before |
| 5/12/1986 | RIN | Tekulve | Promoted to active roster | | | Before |