November 26, 1986 – Traded Pat Clements, Cecilio Guante and Rick Rhoden to the New York Yankees. Received Doug Drabek, Logan Easley and Brian Fisher.
December 4, 1986 – Signed Butch Davis as a free agent.
December 4, 1986 – Signed Vicente Palacios as a free agent.
December 4, 1986 – Signed Mark Ross as a free agent.
December 5, 1986 – Traded Rick Renteria to the Seattle Mariners. Received a player to be named later. The Seattle Mariners sent Bob Siegel (minors) (December 10, 1986) to the Pittsburgh Pirates to complete the trade.
December 8, 1986 – Cecil Espy drafted by the Texas Rangers in the 1986 rule 5 draft.
December 8, 1986 – Vicente Palacios drafted by the Milwaukee Brewers in the 1986 rule 5 draft.
December 10, 1986 – Signed Houston Jimenez as a free agent.
December 20, 1986 – Released Lee Tunnell.
January 9, 1987 – Signed Carlos Garcia as an amateur free agent.
January 20, 1987 – Signed U.L. Washington as a free agent.
February 6, 1987 – Signed Lee Tunnell as a free agent.
February 9, 1987 – Signed Onix Concepción as a free agent.
March 22, 1987 – Purchased Dann Bilardello from the Montreal Expos.
March 27, 1987 – Traded Jim Winn to the Chicago White Sox. Received John Cangelosi.
March 31, 1987 – Released Mike Brown.
April 1, 1987 – Traded Tony Peña to the St. Louis Cardinals. Received Mike Dunne, Mike LaValliere and Andy Van Slyke.
April 3, 1987 – The Milwaukee Brewers returned Vicente Palacios (earlier draft pick).
April 6, 1987 – Sold Lee Tunnell to the St. Louis Cardinals.
April 6, 1987 – Released Larry McWilliams.
May 19, 1987 – Purchased Paul Wilmet from the St. Louis Cardinals.
May 29, 1987 – Traded Bill Almon to the New York Mets. Received Scott Little and Al Pedrique.
June 2, 1987 – Drafted Ben Shelton in the 2nd round of the 1987 amateur draft.
June 2, 1987 – Drafted Brian Williams in the 3rd round of the 1987 amateur draft, but did not sign the player.
June 2, 1987 – Drafted Wes Chamberlain in the 4th round of the 1987 amateur draft. Player signed June 12, 1987.
June 2, 1987 – Drafted Mickey Morandini in the 7th round of the 1987 amateur draft, but did not sign the player.
June 2, 1987 – Drafted Kurt Knudsen in the 8th round of the 1987 amateur draft, but did not sign the player.
June 2, 1987 – Drafted Steve Carter in the 17th round of the 1987 amateur draft.
June 2, 1987 – Drafted Mike Fyhrie in the 19th round of the 1987 amateur draft, but did not sign the player.
June 2, 1987 – Drafted Bob Ayrault in the 26th round of the 1987 amateur draft, but did not sign the player.
June 2, 1987 – Drafted Paul Miller in the 53rd round of the 1987 amateur draft.
June 15, 1987 – Released Onix Concepción.
June 26, 1987 – Traded Pete Rice (minors) and Shawn Holman to the Detroit Tigers. Received Terry Harper.
July 23, 1987 – Sold Dann Bilardello to the Kansas City Royals.
July 31, 1987 – Traded Don Robinson to the San Francisco Giants. Received Mackey Sasser and $50,000.
August 3, 1987 – Selected Jim Gott off waivers from the San Francisco Giants.
August 7, 1987 – Traded Jim Morrison to the Detroit Tigers. Received a player to be named later and Darnell Coles. The Detroit Tigers sent Morris Madden (August 12, 1987) to the Pittsburgh Pirates to complete the trade.
August 21, 1987 – Traded Rick Reuschel to the San Francisco Giants. Received Scott Medvin and Jeff Robinson.
August 29, 1987 – Traded Johnny Ray to the California Angels. Received a player to be named later and Billie Merrifield (minors). The California Angels sent Miguel Garcia (September 3, 1987) to the Pittsburgh Pirates to complete the trade.
October 5, 1987 – Released U.L. Washington.
October 15, 1987 – Butch Davis granted free agency.
October 15, 1987 – Houston Jimenez granted free agency.
Johnson, Lloyd; Wolff, Miles, eds. (2007). The Encyclopedia of Minor League Baseball (3rd ed.). Durham, North Carolina: Baseball America. ISBN978-1-932391-17-6.
