| Transactions | ||||||
| Date | Team | Player | Type | OthTm | EffDate | When |
| 3/12/1986 | CHK | Horner | Acquired via trade | COL | After | |
| 3/12/1986 | CHK | Hume | Traded away | COL | After | |
| 4/15/1986 | BON | Law | Demoted to reserve roster | Before | ||
| 4/15/1986 | BON | Meacham | Promoted to active roster | Before | ||
| 4/15/1986 | BON | Sutcliffe | Demoted to reserve roster | Before | ||
| 5/11/1986 | LON | Browning | Acquired via trade | WIZ | After | |
| 5/11/1986 | LON | Foley | Traded away | WIZ | After | |
| 5/11/1986 | LON | Smith | Acquired via trade | WIZ | After | |
| 5/11/1986 | LON | Valenzuela | Traded away | WIZ | After | |
| 5/17/1986 | CHK | Pena | Demoted to reserve roster | Before | ||
| 5/27/1986 | Pal | McGee | Demoted to reserve roster | Before | ||
| 5/27/1986 | Pal | McGee | Promoted to active roster | Before | ||
| 5/27/1986 | Pal | Minton | Demoted to reserve roster | Before | ||
| 5/27/1986 | Pal | Minton | Promoted to active roster | Before | ||
| 7/5/1986 | CHK | Candelaria | Traded away | COL | After | |
| 7/5/1986 | CHK | Reuschel | Acquired via trade | COL | After | |
| 7/11/1986 | CHK | Reuschel | Promoted to active roster | Before | ||