| | | Friday, September 27th, 2013 | | Placed RF Wayne Stover on the 14-day disabled list, retroactive to 09/24/2013. | | Placed MR Cristo Barbosa on the active roster. | | Activated MR Cristo Barbosa from the disabled list. |
| Friday, September 20th, 2013 | | Placed SS Eli Brandon on the 14-day disabled list, retroactive to 09/18/2013. | | Placed SP Joe Fuller on the 14-day disabled list, retroactive to 09/18/2013. | | Purchased the contract of LF Corbin Butler from Triple A Chicago. | | Purchased the contract of SS John Kinnult from Triple A Chicago. |
| Tuesday, September 10th, 2013 | | Signed SS John Kinnult to a 2-year contract extension worth a total of $4,250,000. |
| Thursday, April 18th, 2013 | | Signed CL Jorge Gonzáles to a 4-year contract extension worth a total of $5,050,000. |
| Wednesday, February 13th, 2013 | | Signed Heydar Botsvade to a minor league contract with a signing bonus of $450,000. |
| Tuesday, January 22nd, 2013 | | Signed free agent MR Dave West to a 1-year contract worth a total of $700,000. |
| Thursday, January 3rd, 2013 | | Signed Sid Short to a minor league contract with a signing bonus of $155,000. |
| Monday, December 17th, 2012 | | CF Carl Faulkner was designated for assignment and placed on waivers. | | Placed SS Bill Conway on the active roster. | | Placed 2B Sebald Hueber on the active roster. |
| Saturday, December 8th, 2012 | | Signed free agent SS Eli Brandon to a 2-year contract worth a total of $1,400,000. |
| Thursday, December 6th, 2012 | | Signed free agent RF Wayne Stover to a 2-year contract worth a total of $3,250,000. |
| Wednesday, November 21st, 2012 | | LF Iván Ortíz received a 1-year contract through automatic renewal worth a total of $510,000. | | CF Dennis Woods received a 1-year contract through automatic renewal worth a total of $510,000. | | C Cal Godleman received a 1-year contract through automatic renewal worth a total of $510,000. | | MR George Campbell received a 1-year contract through automatic renewal worth a total of $510,000. | | LF Paul Batchelder received a 1-year contract through automatic renewal worth a total of $510,000. | | 1B Raúl Machado received a 1-year contract through automatic renewal worth a total of $510,000. | | 3B Eduardo Lińares received a 1-year contract through automatic renewal worth a total of $510,000. | | MR Ángel González received a 1-year contract through automatic renewal worth a total of $510,000. | | MR Jimmy Etheridge received a 1-year contract through automatic renewal worth a total of $510,000. | | 2B Don Beasley received a 1-year contract through automatic renewal worth a total of $510,000. | | CF Carl Faulkner received a 1-year contract through automatic renewal worth a total of $500,000. | | MR Preston Weber becomes a free-agent. | | SP Edgar McNeal received a 1-year contract through automatic renewal worth a total of $510,000. | | 2B Daniel Hall received a 1-year contract through automatic renewal worth a total of $510,000. | | SS Steve Williams received a 1-year contract through automatic renewal worth a total of $510,000. |
| Sunday, November 18th, 2012 | | RF José Rodríguez becomes a free-agent. | | CL Jorge Gonzáles received a 1-year contract through arbitration worth a total of $755,000. | | SP Jamie Perkins received a 1-year contract through arbitration worth a total of $750,000. | | MR Brandon May received a 1-year contract through arbitration worth a total of $750,000. | | SP Raymond Lewis received a 1-year contract through arbitration worth a total of $750,000. | | SP John Ritter received a 1-year contract through arbitration worth a total of $1,700,000. |
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