| Trans Num | Date | Details |
| 1980.1 | 2021-06-08 | Big Pink Machine trades Woodie Fryman and Ken Singleton to the Fort Worth Swindlers for John Denny and Steve Henderson. |
| 1977.40 | 2020-12-10 | Fort Worth Swindlers trade Ken Singleton to the Big Pink Machine for Don Baylor, Sid Monge, and WSO 1978 #2. |