January 03, 2017
Athletics 
designate
Max Muncy
for assignment
January 18, 2017
Athletics
sign
Ross Detwiler
March 26, 2017
Ross Detwiler
became a free agent
April 01, 2017
Athletics
place
Sonny Gray
on the injured list
Athletics
place
Joey Wendle
on the injured list
Athletics
place
Chris Bassitt
on the injured list
Athletics
place
Daniel Mengden
on the injured list
Athletics
sign
Ross Detwiler
April 05, 2017
Athletics
place
John Axford
on the injured list
April 16, 2017
Athletics
place
Marcus Semien
on the injured list
April 17, 2017
Athletics
place
Kendall Graveman
on the injured list
April 23, 2017
Ryan LaMarre
traded from
Angels
to
Athletics
April 30, 2017
Athletics
place
Sean Manaea
on the injured list
May 03, 2017
Athletics
place
Sean Doolittle
on the injured list
Athletics
designate
Cesar Valdez
for assignment
May 27, 2017
Athletics
place
Jesse Hahn
on the injured list
May 29, 2017
Athletics
place
Kendall Graveman
on the injured list
June 16, 2017
Athletics
sign
Zack Kelly
June 20, 2017
Athletics
sign
Mickey McDonald
June 21, 2017
Athletics
release
Ryan LaMarre
June 22, 2017
Athletics
place
Matt Chapman
on the injured list
Athletics
designate
Stephen Vogt
for assignment
June 24, 2017
Athletics
place
Chad Pinder
on the injured list
July 01, 2017
Athletics
sign
Greg Deichmann
Athletics
sign
Nick Allen
July 06, 2017
Athletics
place
Jharel Cotton
on the injured list
July 08, 2017
Athletics
designate
Ryan Lavarnway
for assignment
July 16, 2017
Sheldon Neuse
traded from
Nationals
to
Athletics
Sean Doolittle
traded from
Athletics
to
Nationals
Jesus Luzardo
traded from
Nationals
to
Athletics
Blake Treinen
traded from
Nationals
to
Athletics
July 27, 2017
Athletics
designate
John Axford
for assignment
July 30, 2017
Athletics
release
John Axford
July 31, 2017
Sonny Gray
traded from
Athletics
to
Yankees
James Kaprielian
traded from
Yankees
to
Athletics
Dustin Fowler
traded from
Yankees
to
Athletics
Jorge Mateo
traded from
Yankees
to
Athletics
August 05, 2017
Athletics
designate
Ryan Lavarnway
for assignment
August 16, 2017
Sam Moll
traded from
Rockies
to
Athletics
August 25, 2017
Athletics
place
Paul Blackburn
on the injured list
November 15, 2017
Emilio Pagan
traded from
Mariners
to
Athletics
November 20, 2017
Athletics
designate
Sam Moll
for assignment
Ramon Laureano
traded from
Astros
to
Athletics
December 07, 2017
Athletics
designate
Joey Wendle
for assignment
Athletics
sign
Yusmeiro Petit
as a free agent
December 11, 2017
Joey Wendle
traded from
Athletics
to
Rays
December 14, 2017
Max Schrock
traded from
Athletics
to
Cardinals
Stephen Piscotty
traded from
Cardinals
to
Athletics
Yairo Munoz
traded from
Athletics
to
Cardinals
December 19, 2017
Jonah Heim
traded from
Rays
to
Athletics