| Player | Team | Action | Details | |
|---|---|---|---|---|
| Brad Keller | Shaolin Schmeckles | ADD | to MLB | 12:35 pm, 7/3/21 |
| Thairo Estrada | The Bluth Company | ADD | to AAA | 2:50 am, 7/3/21 |
| Jimmy Nelson | Shaolin Schmeckles | ADD | to MLB | 2:59 pm, 7/2/21 |
| Rodolfo Castro | Purple Cobras | ADD | to A | 1:08 pm, 7/2/21 |
| Hayden Wesneski | Purple Cobras | ADD | to AA | 1:03 pm, 7/2/21 |
| Vladimir Gutierrez | Purple Cobras | ADD | to AAA | 12:56 pm, 7/2/21 |
| M.J. Melendez | The Bluth Company | ADD | to A | 11:19 pm, 7/1/21 |
| Miguel Diaz | Undead Rabbits | ADD | to AAA | 10:54 pm, 7/1/21 |
| Yusmeiro Petit | Undead Rabbits | ADD | to MLB | 1:26 pm, 7/1/21 |
| Enrique Hernandez | Undead Rabbits | ADD | to MLB | 1:25 pm, 7/1/21 |
| Austin Adams | Undead Rabbits | ADD | to MLB | 1:24 pm, 7/1/21 |
| Garrett Cooper | Bullet Club | ADD | to MLB | 5:26 am, 7/1/21 |
| Alec Marsh | Purple Cobras | ADD | to AA | 1:25 am, 7/1/21 |
| Hunter Brown | The Red Barons | ADD | to AA | 8:00 pm, 6/30/21 |
| Jacob Faria | Cowboys From Hell | ADD | to MLB | 12:53 pm, 6/30/21 |
| Jed Lowrie | Cowboys From Hell | ADD | to MLB | 12:53 pm, 6/30/21 |
| Vincent Velasquez | Bullet Club | ADD | to MLB | 10:46 am, 6/30/21 |
| Tyler Anderson | Supreme Clientele | ADD | to MLB | 4:55 pm, 6/29/21 |
| Reese McGuire | Supreme Clientele | ADD | to MLB | 4:53 pm, 6/29/21 |
| Brent Suter | Shaolin Schmeckles | ADD | to MLB | 4:36 pm, 6/29/21 |
| Austin Hays | Chinballs | ADD | to MLB | 12:43 pm, 6/29/21 |
| Emmanuel Rivera | Jon Voight's Car | ADD | to AAA | 10:40 am, 6/29/21 |
| Kyle Bradish | The Bluth Company | ADD | to AA | 7:12 am, 6/29/21 |
| Jose Suarez | The Bluth Company | ADD | to AA | 12:15 am, 6/29/21 |
| Jose Cisnero | Scranton Yankees | ADD | to MLB | 11:43 pm, 6/28/21 |