SPB In Season Free Agency -- SPB-1939
Regular season
| Transactions |
| Seq | Date | Team | Player | Type |
| 0 | 4/21/1939 | WBS | Hughes | Released |
| 0 | 4/21/1939 | WBS | Lefebvre | Signed |
| 0 | 4/21/1939 | WBS | Scharein | Released |
| 0 | 4/21/1939 | WBS | Wittig | Signed |
| 0 | 5/22/1939 | BBB | Gryska | Signed |
| 0 | 5/22/1939 | BBB | Scalzi | Released |
| 0 | 6/15/1939 | BBB | Berger,B | Signed |
| 0 | 6/15/1939 | BBB | Leip | Released |
| 0 | 6/21/1939 | GAS | Barkley | Released |
| 0 | 6/21/1939 | GAS | DeShong | Signed |
| 0 | 7/1/1939 | DET | Bruner | Signed |
| 0 | 7/1/1939 | NYM | Jacobs | Released |
| 0 | 7/8/1939 | DET | Doyle | Released |
| 0 | 7/8/1939 | DET | West,D | Signed |
| 0 | 7/19/1939 | LVC | Galatzer | Released |
| 0 | 7/19/1939 | LVC | Galatzer | Signed |
| 0 | 7/19/1939 | LVC | McNamara | Signed |
| 0 | 7/19/1939 | LVC | Poffenberger | Released |
| 0 | 7/22/1939 | BBB | Cox | Released |
| 0 | 7/22/1939 | BBB | Henry | Signed |
| 0 | 7/22/1939 | BBB | Thuman | Signed |
| 0 | 7/22/1939 | BBB | Walkup | Released |
| 0 | 7/26/1939 | BBB | Berger,B | Released |
| 0 | 7/26/1939 | BBB | Hughes | Released |
| 0 | 7/26/1939 | BBB | Hughes | Signed |
| 0 | 7/26/1939 | BBB | Scharein | Signed |
| 0 | 7/26/1939 | BBB | Schultz | Signed |