| | SF | Signed/Offer Sheet (The Dallas Mavericks signed F Alex Fudge to a two-way contract.) |
| | PF | Traded (The Washinton Wizards traded F-C Daniel Gafford to the Dallas Mavericks.) From |
| | SG | Traded (The Dallas Mavericks traded G Seth Curry to the Charlotte Hornets.) To |
| | PF | Traded (The Dallas Mavericks traded F Richaun Holmes to the Washington Wizards.) To |
| | PF | Traded (The Dallas Mavericks traded F Grant Williams to the Charlotte Hornets.) To |
| | PF | Traded (The Charlotte Hornets traded F P.J. Washington Jr. to the Dallas Mavericks.) From |
| | PG | Signed/Offer Sheet (The Dallas Mavericks signed G Brandon Williams.) |
| | SG | Waived (The Dallas Mavericks waived G Dexter Dennis.) |
| | SG | Other Transaction (The Dallas Mavericks converted G A.J. Lawson to a two-way contract. ) |
| | SG | Waived (The Dallas Mavericks waived G Taze Moore. ) |
| | SG | Other Transaction (The Dallas Mavericks converted G Dexter Dennis to a two-way contract. ) |
| | PF | Other Transaction (The Dallas Mavericks converted F Greg Brown III to a two-way contract. ) |
| | C | Waived (The Dallas Mavericks waived C-F Tony Bradley.) |
| | C | Signed/Offer Sheet (The Dallas Mavericks signed C-F Tony Bradley. ) |
| | SG | Signed/Offer Sheet (The Dallas Mavericks signed G Taze Moore.) |
| | SF | Waived (The Dallas Mavericks waived G-F Joe Wieskamp.) |
| | PG | Waived (The Dallas Mavericks waived G Mike Miles Jr.) |
| | PG | Waived (The Dallas Mavericks waived G Jordan Walker.) |
| | PF | Re-Signed (The Dallas Mavericks re-signed F Markieff Morris.) |
| | C | Waived (The Dallas Mavericks waived C-F JaVale McGee.) |
| | SF | Signed/Offer Sheet (The Dallas Mavericks signed F Derrick Jones Jr..) |
| | PG | Signed/Offer Sheet (The Dallas Mavericks signed G Jordan Walker. ) |
| | PF | Signed/Offer Sheet (The Dallas Mavericks signed F Greg Brown III.) |
| | SF | Signed/Offer Sheet (The Dallas Mavericks signed G-F Joe Wieskamp.) |
| | SG | Signed/Offer Sheet (The Dallas Mavericks signed G Dexter Dennis.) |
| | SG | Signed/Offer Sheet (The Dallas Mavericks signed G-F Matisse Thybulle.) |
| | SF | Traded (The Dallas Mavericks traded G-F Reggie Bullock to the San Antonio Spurs.) To |
| | PF | Signed/Offer Sheet (The Dallas Mavericks signed F Grant Williams.) |
| | PG | Signed/Offer Sheet (The Dallas Mavericks signed G Dante Exum. ) |
| | C | Signed/Offer Sheet (The Dallas Mavericks signed F-C Dwight Powell. ) |
| | PG | Signed/Offer Sheet (The Dallas Mavericks signed G Kyrie Irving. ) |
| | SG | Signed/Offer Sheet (The Dallas Mavericks signed G Seth Curry.) |
| | PG | Declared Free Agency (G McKinley Wright IV declared free agency.) |
| | PG | Declared Free Agency (G Kyrie Irving declared free agency.) |
| | PF | Declared Free Agency (F Markieff Morris declared free agency.) |
| | PG | Declared Free Agency (G Frank Ntilikina declared free agency.) |
| | PF | Declared Free Agency (F Christian Wood declared free agency.) |
| | SG | Declared Free Agency (G-F Theo Pinson declared free agency.) |
| | C | Declared Free Agency (F-C Dwight Powell declared free agency.) |
| | SG | Declared Free Agency (F-G Justin Holiday declared free agency.) |
| | PG | Signed/Offer Sheet (The Dallas Mavericks signed G Mike Miles Jr.) |
| | PF | Traded (The Dallas Mavericks traded F Davis Bertans to the Oklahoma City Thunder.) To |
| | PF | Traded (The Sacramento Kings traded F Richaun Holmes to the Dallas Mavericks.) From |
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