D.C. United Ac.: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-02-25 | Grant Leveille | D.C. United Ac. | D.C. United | — |
| 2025-10-16 | Oscar Avilez | D.C. United Ac. | D.C. United | — |
| 2025-02-21 | Gavin Turner | D.C. United Ac. | D.C. United | — |
| 2024-07-01 | Grant Leveille | NYRB Academy | D.C. United Ac. | Free |
| 2022-08-31 | Matai Akinmboni | D.C. United Ac. | D.C. United | — |
| 2022-04-13 | Jackson Hopkins | D.C. United Ac. | D.C. United | — |
| 2022-03-01 | Gavin Turner | D.C. United Ac. | Loudoun United | Loan |
| 2021-01-01 | Jackson Hopkins | NYRB Academy | D.C. United Ac. | Free |
| 2020-01-17 | Kevin Paredes | D.C. United Ac. | D.C. United | — |
| 2020-01-07 | Theodore Ku-DiPietro | D.C. United Ac. | Loudoun United | — |
| 2019-09-24 | Kevin Paredes | D.C. United Ac. | Loudoun United | Loan |
| 2019-09-19 | Bryang Kayo | D.C. United Ac. | Orange County | Free |
| 2019-06-04 | Theodore Ku-DiPietro | D.C. United Ac. | Loudoun United | Loan |
| 2019-04-11 | Bryang Kayo | D.C. United Ac. | Loudoun United | Loan |
| 2019-03-16 | Griffin Yow | D.C. United Ac. | D.C. United | — |
| 2018-07-01 | Gio Calderón | D.C. United Ac. | NYCFC Academy | Free |
| 2016-08-01 | Jon Bell | D.C. United Ac. | UMBC Retrievers | Free |
| 2016-08-01 | Donovan Pines | D.C. United Ac. | Maryland | Free |
| 2016-06-14 | Chris Durkin | D.C. United Ac. | D.C. United | — |
| 2015-12-01 | Chris Durkin | Rich. Academy | D.C. United Ac. | Free |