| | | Saturday, September 7th, 2013 | | Signed 1B Francisco Concepción to a 2-year contract extension worth a total of $1,810,000. |
| Friday, August 2nd, 2013 | | Placed CF Craig O'Day on the 14-day disabled list, retroactive to 07/24/2013. | | Purchased the contract of LF Roy O'Quinn from Triple A Birmingham. |
| Saturday, July 13th, 2013 | | Signed MR Ron Cutter to a 3-year contract extension worth a total of $13,250,000. |
| Friday, July 12th, 2013 | | Signed SP Jorge Cruz to a 4-year contract extension worth a total of $19,300,000. |
| Saturday, March 16th, 2013 | | Placed SP Francis Green on the 14-day disabled list, retroactive to 03/15/2013. | | Placed SP Jorge Cruz on the active roster. | | Activated SP Jorge Cruz from the disabled list. |
| Thursday, January 10th, 2013 | | Signed Justin Keller to a minor league contract with a signing bonus of $140,000. |
| Friday, January 4th, 2013 | | Signed Yves Faucher to a minor league contract with a signing bonus of $580,000. |
| Thursday, January 3rd, 2013 | | Signed Pat Carroll to a minor league contract with a signing bonus of $200,000. |
| Monday, December 24th, 2012 | | Signed John Whitehead to a minor league contract with a signing bonus of $1,070,000. |
| Friday, November 23rd, 2012 | | Placed SP Marc Murphy on the active roster. | | Activated SP Marc Murphy from the 60-day disabled list. | | Placed SP Troy Baker on the active roster. | | Activated SP Troy Baker from the 60-day disabled list. | | Placed CF Ryan Taylor on the active roster. | | Activated CF Ryan Taylor from the 60-day disabled list. | | Placed SP Jorge Cruz on the active roster. | | Activated SP Jorge Cruz from the 60-day disabled list. |
| Wednesday, November 21st, 2012 | | SS Curt Dempsey received a 1-year contract through automatic renewal worth a total of $510,000. | | 2B Andy Reynolds received a 1-year contract through automatic renewal worth a total of $510,000. | | SP Eduardo Muñóz received a 1-year contract through automatic renewal worth a total of $510,000. | | SP Melvin Brown received a 1-year contract through automatic renewal worth a total of $510,000. | | CF Ryan Taylor received a 1-year contract through automatic renewal worth a total of $510,000. | | SP Marc Murphy received a 1-year contract through automatic renewal worth a total of $510,000. | | C Alonso Beltrán received a 1-year contract through automatic renewal worth a total of $500,000. | | SP Michael Whitney becomes a free-agent. | | MR Jim Davis becomes a free-agent. | | SP Jeff O'Macken becomes a free-agent. | | MR Bob Hendricks received a 1-year contract through automatic renewal worth a total of $500,000. | | MR Chris Neal received a 1-year contract through automatic renewal worth a total of $510,000. | | SS Henry Bell received a 1-year contract through automatic renewal worth a total of $510,000. | | SS Walt Dobson received a 1-year contract through automatic renewal worth a total of $510,000. | | MR Francis Green received a 1-year contract through automatic renewal worth a total of $500,000. | | SP Héctor Huertas received a 1-year contract through automatic renewal worth a total of $500,000. | | 2B Alec Garrett received a 1-year contract through automatic renewal worth a total of $510,000. | | SS Pedro Vega received a 1-year contract through automatic renewal worth a total of $510,000. |
| Sunday, November 18th, 2012 | | SP Jorge Cruz received a 1-year contract through arbitration worth a total of $3,400,000. | | SP Troy Baker received a 1-year contract through arbitration worth a total of $3,080,000. | | MR Ron Cutter received a 1-year contract through arbitration worth a total of $2,420,000. | | CF Frank Johnston received a 1-year contract through arbitration worth a total of $750,000. | | 1B Francisco Concepción received a 1-year contract through arbitration worth a total of $750,000. | | SP Kevin Black received a 1-year contract through arbitration worth a total of $1,870,000. | | MR Alejandro Herrera received a 1-year contract through arbitration worth a total of $750,000. |
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