Pat Hughes trades
| Edmonton Oilers acquire | Date | Pittsburgh Penguins acquire | ||
|---|---|---|---|---|
 | Mike Moller | December 31, 2003 | Pat Hughes |  |
| Hartford Whalers acquire | Date | St. Louis Blues acquire | ||
|---|---|---|---|---|
 | Pat Hughes | March 10, 1987 | 1987 tenth round pick (#207-Andy Cesarski) |  |
| Edmonton Oilers acquire | Date | Pittsburgh Penguins acquire | ||
|---|---|---|---|---|
| Pat Price | October 4, 1985 | Pat Hughes | |
| Buffalo Sabres acquire | Date | Pittsburgh Penguins acquire | ||
|---|---|---|---|---|
 | Pat Hughes | October 4, 1985 | Randy Cunneyworth | |
| Mike Moller | ||||
| Edmonton Oilers acquire | Date | Pittsburgh Penguins acquire | ||
|---|---|---|---|---|
| Pat Hughes | March 10, 1981 | Pat Price | |
| Montreal Canadiens acquire | Date | Pittsburgh Penguins acquire | ||
|---|---|---|---|---|
 | Denis Herron | August 30, 1979 | Rob Holland | |
| 1982 2nd round pick (#31-Jocelyn Gauvreau) | Pat Hughes | |||