| Player | Team | Action | Details | |
|---|---|---|---|---|
| Kevin Ginkel | Shaolin Schmeckles | ADD | to MLB | 1:04 pm, 4/11/21 |
| Jon Lester | Shaolin Schmeckles | ADD | to MLB | 1:02 pm, 4/11/21 |
| Mike Fiers | Shaolin Schmeckles | ADD | to MLB | 1:01 pm, 4/11/21 |
| Stefan Crichton | Shaolin Schmeckles | ADD | to MLB | 1:32 pm, 4/10/21 |
| Justin Upton | Undead Rabbits | ADD | to MLB | 1:08 pm, 4/10/21 |
| Avisail Garcia | Undead Rabbits | ADD | to MLB | 1:07 pm, 4/10/21 |
| Miguel Cabrera | Undead Rabbits | ADD | to MLB | 1:06 pm, 4/10/21 |
| Evan Longoria | Undead Rabbits | ADD | to MLB | 1:06 pm, 4/10/21 |
| Asdrubal Cabrera | Undead Rabbits | ADD | to MLB | 1:06 pm, 4/10/21 |
| Dom Nunez | Undead Rabbits | ADD | to AAA | 1:05 pm, 4/10/21 |
| Michael Tauchman | Bullet Club | ADD | to MLB | 6:08 pm, 4/9/21 |
| Stephen Gonsalves | Bullet Club | ADD | to AAA | 12:45 pm, 4/9/21 |
| Connor Brogdon | Purple Cobras | ADD | to AAA | 10:18 am, 4/9/21 |
| Garrett Whitlock | Chinballs | ADD | to MLB | 8:14 pm, 4/8/21 |
| Myles Straw | Shaolin Schmeckles | ADD | to MLB | 4:16 pm, 4/8/21 |
| Jake Diekman | Shaolin Schmeckles | ADD | to MLB | 3:35 pm, 4/8/21 |
| Josh Fuentes | Geckos | ADD | to MLB | 1:07 pm, 4/8/21 |
| Jackie Bradley Jr | Geckos | ADD | to MLB | 1:07 pm, 4/8/21 |
| David Bote | Geckos | ADD | to MLB | 1:07 pm, 4/8/21 |
| Huascar Ynoa | Supreme Clientele | ADD | to MLB | 11:27 am, 4/8/21 |
| Gregory Soto | Supreme Clientele | ADD | to MLB | 11:27 am, 4/8/21 |
| Tyler Anderson | Cowboys From Hell | ADD | to MLB | 10:03 am, 4/8/21 |
| Matt Harvey | Cowboys From Hell | ADD | to MLB | 10:03 am, 4/8/21 |
| Jairo Solis | Shaolin Schmeckles | ADD | to AA | 12:33 am, 4/8/21 |
| Ross Stripling | Chinballs | ADD | to MLB | 5:13 pm, 4/7/21 |