| Player | Team | Action | Details | |
|---|---|---|---|---|
| Joey Estes | Shaolin Schmeckles | ADD | to A | 11:01 pm, 8/17/21 |
| Tyler Gilbert | Shaolin Schmeckles | ADD | to MLB | 11:00 pm, 8/17/21 |
| Peyton Battenfield | Purple Cobras | ADD | to AA | 10:58 pm, 8/17/21 |
| Eli Morgan | The Bluth Company | ADD | to AAA | 9:15 pm, 8/17/21 |
| Kody Hoese | The Red Barons | ADD | to AA | 8:10 pm, 8/17/21 |
| Yasel Antuna | The Red Barons | ADD | to AA | 6:42 pm, 8/17/21 |
| Brent Suter | The Red Barons | ADD | to MLB | 6:38 pm, 8/17/21 |
| Corey Knebel | Shaolin Schmeckles | ADD | to MLB | 6:21 pm, 8/17/21 |
| Colt Keith | Jon Voight's Car | ADD | to AAA | 6:11 pm, 8/17/21 |
| Griffin Conine | Shaolin Schmeckles | ADD | to AAA | 7:58 pm, 8/16/21 |
| Alex Vesia | The Bluth Company | ADD | to MLB | 11:44 am, 8/16/21 |
| Everson Pereira | Ye Olde Tom Toolshed | ADD | to A | 10:57 am, 8/16/21 |
| Taylor Motter | Shaolin Schmeckles | ADD | to MLB | 4:52 am, 8/16/21 |
| Dillon Peters | Shaolin Schmeckles | ADD | to MLB | 12:48 pm, 8/15/21 |
| Jorge Mateo | The Red Barons | ADD | to MLB | 8:44 am, 8/15/21 |
| Paolo Espino | Shaolin Schmeckles | ADD | to MLB | 11:09 pm, 8/14/21 |
| Brent Rooker | The Red Barons | ADD | to MLB | 10:38 pm, 8/14/21 |
| Drew Hutchinson | Shaolin Schmeckles | ADD | to MLB | 10:04 pm, 8/14/21 |
| Wily Peralta | Shaolin Schmeckles | ADD | to MLB | 3:45 am, 8/14/21 |
| Zack Littell | Shaolin Schmeckles | ADD | to AAA | 12:56 am, 8/14/21 |
| Adam Ottavino | Shaolin Schmeckles | ADD | to MLB | 5:16 pm, 8/13/21 |
| Justin Bullock | Purple Cobras | ADD | to A | 10:04 am, 8/13/21 |
| Kevin Plawecki | Nixon's Nasty Ninjas | ADD | to MLB | 10:01 am, 8/13/21 |
| Frank Schwindel | Purple Cobras | ADD | to AAA | 9:45 am, 8/13/21 |
| Thairo Estrada | Purple Cobras | ADD | to AAA | 9:40 am, 8/13/21 |