| Subsidiary | Jurisdiction of Formation | ||||
| Igen, Inc | Delaware | ||||
| Teligent Pharma, Inc. | Delaware | ||||
| Teligent Luxembourg S.a.r.l. | Luxembourg | ||||
| Teligent OÜ | Luxembourg | ||||
| Teligent Canada, Inc. | British Columbia, Canada | ||||
| TELIP, LLC | Delaware | ||||
| Microburst Energy, Inc. (Inactive) | Delaware | ||||
| Blood Cells, Inc. (Inactive) | Delaware | ||||
| Flavorsome, Ltd. (Inactive) | Delaware | ||||
Teligent Jersey Limited (dissolved 2/17/2020) | Jersey (U.K.) | ||||