Offseason
- November 13, 1985: Barbaro Garbey was traded by the Detroit Tigers to the Oakland Athletics for Dave Collins.
- December 10, 1985: Mike Heath and Tim Conroy were traded by the Athletics to the St. Louis Cardinals for Joaquín Andújar.
- January 17, 1986: Phil Stephenson and Bob Bathe (minors) were traded by the Athletics to the Chicago Cubs for Gary Jones (minors) and John Cox (minors).
- February 1, 1986: Lenn Sakata was signed as a Free Agent with the Oakland Athletics.
- March 21, 1986: Barbaro Garbey was released by the Oakland Athletics.
- March 30, 1986: Charlie O'Brien, Steve Kiefer, Mike Fulmer (minors) and Pete Kendrick (minors) were traded by the Athletics to the Milwaukee Brewers for Moose Haas.
Read more about this topic: 1986 Oakland Athletics Season