January 16, 2015

Diamondbacks  sign Yoan Lopez

February 11, 2015

Diamondbacks  sign Jhoan Duran

April 03, 2015

Trevor Cahill traded from Diamondbacks  to Braves 

April 05, 2015

Diamondbacks  place Patrick Corbin on the injured list

April 06, 2015

Victor Reyes traded from Braves  to Diamondbacks 

April 21, 2015

Diamondbacks  place Jake Lamb on the injured list

April 29, 2015

Diamondbacks  place Archie Bradley on the injured list

May 26, 2015

Diamondbacks  sign Ildemaro Vargas

June 03, 2015

Dominic Leone traded from Mariners  to Diamondbacks 

June 04, 2015

Diamondbacks  place Archie Bradley on the injured list

June 12, 2015

Diamondbacks  sign Taylor Clarke

June 13, 2015

Diamondbacks  sign Ryan Burr

June 16, 2015

Diamondbacks  place Ender Inciarte on the injured list

June 19, 2015

Diamondbacks  sign Jhoulys Chacin

June 20, 2015

July 05, 2015

Josh Taylor traded from Phillies  to Diamondbacks 

Diamondbacks  sign Jazz Chisholm

July 09, 2015

Diamondbacks  sign Alex Young

July 17, 2015

Diamondbacks  sign Dansby Swanson

July 19, 2015

Diamondbacks  place Chase Anderson on the injured list

August 08, 2015

Oliver Perez traded from Diamondbacks  to Astros 

September 08, 2015

Diamondbacks  place Evan Marshall on the injured list

September 21, 2015

Diamondbacks  sign John Brebbia

November 06, 2015

Jhoulys Chacin became a free agent

November 24, 2015

Diamondbacks  sign Luis Frias

November 30, 2015

Diamondbacks  sign Joel Payamps

December 08, 2015

Diamondbacks  sign Zack Greinke as a free agent

December 09, 2015

December 11, 2015

Diamondbacks  sign Jose Cisnero