Search Results
| Date | Team | Acquired | Relinquished | Notes |
| 2021-04-07 | Pistons | • Tyler Cook | re-signed to a 2-year $2.1M contract | |
| 2021-05-12 | Pistons | • Dwane Casey | re-signed as head coach to a 1-year contract extension through 2023-24 | |
| 2021-06-02 | Pistons | • John Beilein | hired as senior advisor/player development | |
| 2021-07-26 | Pistons | • Frank Jackson | team tendered qualifying offer, making player a restricted free agent | |
| 2021-07-26 | Pistons | • Hamidou Diallo | team tendered qualifying offer, making player a restricted free agent | |
| 2021-07-28 | Pistons | • Saben Lee | team tendered qualifying offer, making player a restricted free agent | |
| 2021-07-29 | Pistons | • Jaylen Hands | renounced rights | |
| 2021-07-29 | Pistons | • Cade Cunningham | 2021 NBA draft first round pick (#1 overall) | |
| 2021-07-29 | Pistons | • J.T. Thor | 2021 NBA draft second round pick (#37 overall) | |
| 2021-07-29 | Pistons | • Isaiah Livers | 2021 NBA draft second round pick (#42 overall) | |
| 2021-07-29 | Pistons | • Luka Garza | 2021 NBA draft second round pick (#52 overall) | |
| 2021-07-31 | Pistons | • Cory Joseph | waived | |
| 2021-07-31 | Pistons | • Deividas Sirvydis | waived | |
| 2021-07-31 | Pistons | • Tyler Cook | waived | |
| 2021-08-01 | Pistons | • Dennis Smith Jr. | team declined to tender qualifying offer | |
| 2021-08-02 | Pistons | • Cory Joseph | player became a free agent | |
| 2021-08-02 | Pistons | • Deividas Sirvydis | player became an unrestricted free agent | |
| 2021-08-02 | Pistons | • Dennis Smith Jr. | player became an unrestricted free agent | |
| 2021-08-02 | Pistons | • Tyler Cook | player became an unrestricted free agent | |
| 2021-08-02 | Pistons | • Wayne Ellington | player became an unrestricted free agent | |
| 2021-08-06 | Pistons | • Dennis Smith Jr. | team renounced free agent exception rights | |
| 2021-08-06 | Pistons | • Rodney McGruder | waived | |
| 2021-08-06 | Pistons | • Isaiah Livers | signed second round pick to a 3-year $4.5M contract | |
| 2021-08-06 | Pistons | • Kelly Olynyk | signed unrestricted free agent to a 3-year $37M contract | |
| 2021-08-06 | Pistons | • Saben Lee | re-signed restricted free agent to a 3-year $5.1M contract |