| Player | Team | Action | Details | |
|---|---|---|---|---|
| Robbie Erlin | Purple Cobras | ADD | to MLB | 9:14 am, 5/20/18 |
| M.J. Melendez | The Bluth Company | ADD | to A | 1:19 am, 5/20/18 |
| Pablo Lopez | Purple Cobras | ADD | to A | 5:13 pm, 5/19/18 |
| Colin Poche | The Red Barons | ADD | to AAA | 5:12 pm, 5/19/18 |
| Elehuris Montero | Nixon's Nasty Ninjas | ADD | to AA | 5:10 pm, 5/19/18 |
| Tucker Barnhart | Purple Cobras | ADD | to MLB | 5:08 pm, 5/19/18 |
| Daniel Robertson | The Bluth Company | ADD | to AAA | 2:20 am, 5/19/18 |
| M.J. Melendez | The Bluth Company | ADD | to A | 12:12 am, 5/19/18 |
| Adrian Gonzalez | Purple Cobras | ADD | to MLB | 5:11 pm, 5/18/18 |
| Matt Wisler | Purple Cobras | ADD | to MLB | 5:08 pm, 5/18/18 |
| Mike Fiers | Chinballs | ADD | to MLB | 4:14 pm, 5/18/18 |
| Tom Murphy | Scranton Yankees | ADD | to AA | 2:45 pm, 5/18/18 |
| Niko Goodrum | Ye Olde Tom Toolshed | ADD | to MLB | 2:17 pm, 5/18/18 |
| Nick Neidert | Supreme Clientele | ADD | to A | 2:05 pm, 5/18/18 |
| Trevor Stephan | The Bluth Company | ADD | to AA | 12:47 pm, 5/18/18 |
| Erik Swanson | Cowboys From Hell | ADD | to AAA | 11:02 am, 5/18/18 |
| Calvin Mitchell | Ye Olde Tom Toolshed | ADD | to A | 12:59 am, 5/18/18 |
| Curtis Granderson | Purple Cobras | ADD | to MLB | 9:34 am, 5/17/18 |
| Yolmer Sanchez | Purple Cobras | ADD | to MLB | 9:26 am, 5/17/18 |
| Cavan Biggio | The Bluth Company | ADD | to AA | 2:01 pm, 5/16/18 |
| Joe Kelly | Cowboys From Hell | ADD | to MLB | 1:36 pm, 5/16/18 |
| Zack Collins | Purple Cobras | ADD | to AA | 3:50 am, 5/16/18 |
| Daniel Palka | Purple Cobras | ADD | to MLB | 6:21 pm, 5/15/18 |
| Miguel Castro | Supreme Clientele | ADD | to AAA | 3:14 pm, 5/15/18 |
| Isaac Paredes | Nixon's Nasty Ninjas | ADD | to AA | 1:08 pm, 5/15/18 |