| 19 | | Supplemental Agreement for work within scope | $0 | 10/18/19 |
| 18 | | Supplemental Agreement for work within scope | $0 | 9/16/19 |
| 17 | | Supplemental Agreement for work within scope | $0 | 7/22/19 |
| 16 | | Supplemental Agreement for work within scope | $17.5k | 5/27/19 |
| 15 | | Supplemental Agreement for work within scope | $292.3k | 4/24/19 |