San Francisco Giants 1989

San Francisco Giants acquire	Date	Philadelphia Phillies acquire
Steve Bedrosian Player to be named later (Rick Parker)	June 18, 1989	Charlie Hayes Dennis Cook Terry Mulholland

San Francisco Giants acquire	Date	Pittsburgh Pirates acquire
Ken Oberkfell	May 10, 1989	Roger Samuels

Montreal Expos acquire	Date	San Francisco Giants acquire
Mike Aldrete	December 9, 1988	Tracy Jones

Montreal Expos acquire	Date	San Francisco Giants acquire
Angel Escobar	November 18, 1988	Will Tejada