March 20, 2012

Royals  place Salvador Perez on the injured list

April 04, 2012

Royals  place Joakim Soria on the injured list

April 12, 2012

Royals  place Lorenzo Cain on the injured list

April 21, 2012

Royals  place Greg Holland on the injured list

May 14, 2012

Royals  place Danny Duffy on the injured list

June 07, 2012

Royals  sign Matt Strahm

Royals  sign Kyle Zimmer

June 09, 2012

Royals  sign Ashton Goudeau

June 10, 2012

Royals  sign Alec Mills

June 11, 2012

Royals  sign Jake Newberry

June 12, 2012

Royals  sign Sam Selman

July 19, 2012

Royals  sign Yunior Marte

October 31, 2012

Ervin Santana traded from None  to Royals 

November 03, 2012

Joakim Soria became a free agent

December 09, 2012