| Trans Num | Date | Details |
| 1982.15 | 2021-12-16 | Hyannis Harborhawks trade Jim Palmer to the Fort Worth Swindlers for Rick Langford and FWS 1983 #2. |
| 1981.16 | 2021-10-05 | Hyannis Harborhawks trade HHH 1982 #2 to the Chesapeake Blue Herons for Rick Langford. |
| 1977.30 | 2020-12-02 | Hyannis Harborhawks trade John Montefusco and Bruce Sutter to the Olney Ogres for Rick Langford, Luis Tiant, and OOG 1978 #3. |