| Player | Team | Action | Details | |
|---|---|---|---|---|
| Jake Woodford | Chinballs | ADD | to MLB | 9:53 am, 7/19/21 |
| Yandy Diaz | Chinballs | ADD | to MLB | 9:52 am, 7/19/21 |
| Hector Neris | Purple Cobras | ADD | to MLB | 8:13 am, 7/19/21 |
| Phil Bickford | Undead Rabbits | ADD | to AAA | 3:27 pm, 7/18/21 |
| David Bednar | The Red Barons | ADD | to MLB | 7:47 am, 7/18/21 |
| Griffin Conine | Shaolin Schmeckles | ADD | to AAA | 6:47 am, 7/18/21 |
| Austin Adams | The Red Barons | ADD | to MLB | 10:57 pm, 7/17/21 |
| Miguel Rojas | Purple Cobras | ADD | to MLB | 5:36 pm, 7/17/21 |
| Harold Ramirez | Purple Cobras | ADD | to MLB | 2:46 pm, 7/17/21 |
| Garrett Richards | Supreme Clientele | ADD | to MLB | 12:44 pm, 7/17/21 |
| Nestor Cortes | Purple Cobras | ADD | to MLB | 9:45 am, 7/17/21 |
| Brian Goodwin | Geckos | ADD | to MLB | 9:45 am, 7/17/21 |
| Jordan Holloway | Purple Cobras | ADD | to AAA | 9:38 am, 7/17/21 |
| Pete Fairbanks | Purple Cobras | ADD | to MLB | 9:33 am, 7/17/21 |
| Cole Ragans | Purple Cobras | ADD | to AA | 9:31 am, 7/17/21 |
| Canaan Smith | Purple Cobras | ADD | to AA | 9:26 am, 7/17/21 |
| Christian Arroyo | Shaolin Schmeckles | ADD | to MLB | 2:44 pm, 7/15/21 |
| Brandon Pfaadt | Geckos | ADD | to AA | 10:44 am, 7/15/21 |
| Ken Waldichuk | The Bluth Company | ADD | to AA | 1:52 pm, 7/14/21 |
| Jesse Franklin | The Bluth Company | ADD | to AAA | 11:09 am, 7/13/21 |
| Luis Torrens | Supreme Clientele | ADD | to MLB | 4:37 pm, 7/12/21 |
| Ramon Urias | The Bluth Company | ADD | to AAA | 4:00 pm, 7/12/21 |
| Jairo Pomares | The Bluth Company | ADD | to A | 3:58 pm, 7/12/21 |
| Taylor Dollard | Purple Cobras | ADD | to A | 3:54 pm, 7/12/21 |
| John Doxakis | Purple Cobras | ADD | to A | 3:54 pm, 7/12/21 |