| Transactions |
| Date | Team | Player | Type | OthTm | EffDate | When |
| 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 | AVI | Hrbek | Promoted to active roster | | | Before |
| 4/3/1986 | AVI | Kingery | Demoted to reserve roster | | | Before |
| 4/5/1986 | HNT | Kennedy | Demoted to reserve roster | | | Before |
| 4/5/1986 | HNT | White,D | 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 | NJD | Harper,B | Promoted to active roster | | | Before |
| 4/12/1986 | NJD | Valle | 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 |
| 4/18/1986 | HNT | Browne | Demoted to reserve roster | | | Before |
| 4/18/1986 | HNT | Kennedy | Promoted to active roster | | | Before |
| 4/18/1986 | RIN | Eichhorn | Activated from Injured List | | | Before |
| 4/18/1986 | RIN | Tekulve | 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 |
| 4/24/1986 | AVI | Boever | Demoted to reserve roster | | | Before |
| 4/24/1986 | AVI | Ontiveros | 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 | 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 | 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 |
| 5/9/1986 | 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 | RIN | Farr | Demoted to reserve roster | | | Before |
| 5/12/1986 | RIN | Tekulve | Promoted to active roster | | | Before |
| 5/16/1986 | ROC | Dwyer | Promoted to active roster | | | Before |
| 5/16/1986 | ROC | Nixon | Demoted to reserve roster | | | Before |
| 5/17/1986 | QME | Distefano | Promoted to active roster | | | Before |
| 5/17/1986 | QME | Roberts | Placed on Injured List | | 5/17/1986 | Before |
| 5/19/1986 | HNT | Biancalana | Promoted to active roster | | | Before |
| 5/19/1986 | HNT | Seitzer | Demoted to reserve roster | | | Before |
| 5/19/1986 | HNT | White,D | Demoted to reserve roster | | | Before |
| 5/19/1986 | HNT | Wynne | Promoted to active roster | | | Before |
| 5/19/1986 | TWP | Howell,Jac | Demoted to reserve roster | | | Before |
| 5/19/1986 | TWP | Nettles | Promoted to active roster | | | Before |
| 5/21/1986 | ROC | Finley | Demoted to reserve roster | | | Before |
| 5/21/1986 | ROC | Myers | Promoted to active roster | | | Before |
| 5/22/1986 | RIN | Hassey | Activated from Injured List | | | Before |
| 5/22/1986 | RIN | Ortiz | Demoted to reserve roster | | | Before |
| 5/23/1986 | SAN | Lowry | Promoted to active roster | | | Before |
| 5/23/1986 | SAN | Parrish,Ln | Placed on Injured List | | 5/15/1986 | Before |
| 5/24/1986 | AVI | Concepcion | Placed on Injured List | | 5/24/1986 | Before |
| 5/24/1986 | AVI | Lee | Promoted to active roster | | | Before |
| 5/26/1986 | QME | Reynolds,C | Promoted to active roster | | | Before |
| 5/26/1986 | QME | Smith,Lo | Placed on Injured List | | 5/25/1986 | Before |
| 5/31/1986 | QME | Manning | Promoted to active roster | | | Before |
| 5/31/1986 | QME | Orsulak | Placed on Injured List | | 5/30/1986 | Before |
| 6/1/1986 | QME | Reynolds,C | Demoted to reserve roster | | | Before |
| 6/1/1986 | QME | Roberts | Activated from Injured List | | | Before |
| 6/4/1986 | QME | Distefano | Demoted to reserve roster | | | Before |
| 6/4/1986 | QME | Reynolds,C | Promoted to active roster | | | Before |
| 6/5/1986 | NJD | Sebra | Demoted to reserve roster | | | Before |
| 6/5/1986 | NJD | Welch | Activated from Injured List | | | Before |
| 6/5/1986 | RIN | Farr | Promoted to active roster | | | Before |
| 6/5/1986 | RIN | Tekulve | Demoted to reserve roster | | | Before |
| 6/5/1986 | ROC | Quirk | Promoted to active roster | | | Before |
| 6/5/1986 | ROC | Tettleton | Demoted to reserve roster | | | Before |
| 6/5/1986 | SAN | Hume | Promoted to active roster | | | Before |
| 6/5/1986 | SAN | Plesac | Placed on Injured List | | 6/3/1986 | Before |
| 6/8/1986 | AVI | Soto | Promoted to active roster | | | Before |
| 6/8/1986 | AVI | Terrell | Placed on Injured List | | 6/7/1986 | Before |
| 6/8/1986 | HNT | John | Promoted to active roster | | | Before |
| 6/8/1986 | HNT | Reuschel | Placed on Injured List | | 6/7/1986 | Before |
| 6/8/1986 | RIN | Mazzilli | Promoted to active roster | | | Before |
| 6/8/1986 | RIN | Wilson,M | Demoted to reserve roster | | | Before |
| 6/9/1986 | AVI | Concepcion | Activated from Injured List | | | Before |
| 6/9/1986 | AVI | Lee | Demoted to reserve roster | | | Before |