Search Results
| Date | Team | Acquired | Relinquished | Notes |
| 1989-07-15 | Pistons | • Scott Hastings | signed unrestricted free agent | |
| 1989-09-18 | Pistons | • Stan Kimbrough | signed free agent | |
| 1989-10-06 | Pistons | • David Greenwood | signed free agent | |
| 1989-12-06 | Pistons | • Stan Kimbrough | waived | |
| 1989-12-06 | Pistons | • Gerald Henderson (Sr.) | signed free agent | |
| 1990-03-28 | Pistons | • Ralph Lewis | signed free agent to a 10-day contract | |
| 1990-04-07 | Pistons | • Ralph Lewis | re-signed to a second 10-day contract | |
| 1990-06-26 | Pistons | • John Salley | team exercised contract option for 1990-91 | |
| 1990-06-27 | Pistons | • Lance Blanks | 1990 NBA draft first round pick (#26 overall) | |
| 1990-07-01 | Pistons | • David Greenwood | player became a free agent | |
| 1990-07-10 | Pistons | • Chuck Daly | re-signed as head coach to a multi-year contract | |
| 1990-08-23 | Pistons | • Lance Blanks | signed first round pick to a 4-year contract | |
| 1990-09-04 | Pistons | • Wayne Rollins / Tree Rollins | signed unrestricted free agent | |
| 1990-09-28 | Pistons | • 1995 second round pick (#44-Anthony Pelle) | • Anthony Cook | trade with Nuggets |
| 1990-10-11 | Pistons | • Earl Jones | waived | |
| 1990-10-11 | Pistons | • James Carter | waived | |
| 1990-10-11 | Pistons | • Nathan Buntin | waived | |
| 1990-10-11 | Pistons | • Paris McCurdy | waived | |
| 1990-10-19 | Pistons | • Vinnie Johnson | re-signed | |
| 1990-10-29 | Pistons | • John McIntyre | waived | |
| 1990-11-11 | Pistons | • Gerald Henderson (Sr.) | waived | |
| 1991-01-25 | Pistons | • John Long | signed free agent to a 10-day contract | |
| 1991-02-05 | Pistons | • John Long | re-signed to a second 10-day contract | |
| 1991-02-15 | Pistons | • John Long | re-signed for the remainder of the season | |
| 1991-02-24 | Pistons | • Gerald Henderson (Sr.) | signed free agent to a 10-day contract |