Tony Esposito trades
| Vancouver Canucks acquire | Date | Pittsburgh Penguins acquire | ||
|---|---|---|---|---|
 | Rod Buskas | October 24, 1989 | 1990 6th round pick (#107-Ian Moran) |  |
| Pittsburgh Penguins acquire | Date | New York Rangers acquire | ||
|---|---|---|---|---|
| future considerations | September 14, 1989 | Lee Giffin |  |
| Winnipeg Jets acquire | Date | Pittsburgh Penguins acquire | ||
|---|---|---|---|---|
 | Randy Cunneyworth | June 17, 1989 | Randy Gilhen | |
| Dave McLlwain | Jim Kyte | |||
| Rick Tabaracci | Andrew McBain | |||
| Los Angeles Kings acquire | Date | Pittsburgh Penguins acquire | ||
|---|---|---|---|---|
 | Pat Mayer | March 6, 1989 | Tim Tookey | |
| Calgary Flames acquire | Date | Pittsburgh Penguins acquire | ||
|---|---|---|---|---|
 | Steve Guenette | January 9, 1989 | 1989 6th round pick (#126-Mike Needham) | |
| Minnesota North Stars acquire | Date | Pittsburgh Penguins acquire | ||
|---|---|---|---|---|
 | Steve Gotaas | December 17, 1988 | Scott Bjugstad | |
| Ville Siren | Gord Dineen | |||
| Buffalo Sabres acquire | Date | Pittsburgh Penguins acquire | ||
|---|---|---|---|---|
 | Doug Bodger | November 12, 1988 | Tom Barrasso | |
| Darrin Shannon | 1990 3rd round pick (#61-Joe Dziedzic) | |||
| Minnesota North Stars acquire | Date | Pittsburgh Penguins acquire | ||
|---|---|---|---|---|
| rights to Rob Gaudreau | November 1, 1988 | Richard Zemlak | |
| Buffalo Sabres acquire | Date | Pittsburgh Penguins acquire | ||
|---|---|---|---|---|
| Wayne Van Dorp | October 3, 1988 | 1990 7th round pick (#145-Pat Neaton) | |
| Pittsburgh Penguins acquire | Date | Philadelphia Flyers acquire | ||
|---|---|---|---|---|
| Wendell Young | September 1, 1988 | 1990 3rd round pick (#47-Chris Therien) |  |
| 1990 7th round pick (#130-Mika Valila) | ||||