St. Louis 2: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-02-24 | Sidney Paris | Without Club | St. Louis 2 | — |
| 2025-07-18 | Jaziel Orozco | St. Louis 2 | St. Louis CITY | — |
| 2025-01-21 | Jaziel Orozco | Salt Lake | St. Louis 2 | Free |
| 2025-01-01 | MyKhi Joyner | St. Louis 2 | St. Louis CITY | — |
| 2024-07-07 | Jayden Reid | St. Louis 2 | St. Louis CITY | — |
| 2024-02-20 | Brendan McSorley | St. Louis CITY | St. Louis 2 | Loan |
| 2024-02-07 | MyKhi Joyner | STLSC Academy | St. Louis 2 | — |
| 2024-02-02 | Jayden Reid | New York | St. Louis 2 | Free |
| 2024-01-01 | Tyson Pearce | St. Louis 2 | St. Louis CITY | — |
| 2023-08-17 | Tyson Pearce | STLSC Academy | St. Louis 2 | — |
| 2023-03-10 | Tyson Pearce | STLSC Academy | St. Louis 2 | Loan |
| 2023-03-10 | MyKhi Joyner | STLSC Academy | St. Louis 2 | Loan |
| 2023-01-01 | Kyle Hiebert | St. Louis 2 | St. Louis CITY | — |
| 2023-01-01 | Joshua Yaro | St. Louis 2 | St. Louis CITY | — |
| 2022-11-17 | Célio Pompeu | St. Louis 2 | St. Louis CITY | — |
| 2022-02-07 | Miguel Perez | STLSC Academy | St. Louis 2 | Loan |
| 2022-02-07 | Kyle Hiebert | Missouri State | St. Louis 2 | Free |
| 2022-02-07 | Joshua Yaro | San Diego Loyal | St. Louis 2 | Free |
| 2022-02-07 | Célio Pompeu | VCU Rams | St. Louis 2 | Free |