| | | Saturday, October 5th, 2013 | | Signed LF Leonard Williams to a 1-year contract extension worth a total of $860,000. |
| Friday, September 13th, 2013 | | Placed SS Jim Mason on the 14-day disabled list, retroactive to 09/08/2013. | | Placed SS Martin Bryan on the active roster. | | Activated SS Martin Bryan from the disabled list. | | SP Zach Tate was designated for assignment and placed on waivers. | | Placed SP Tom Bray on the active roster. | | Activated SP Tom Bray from the 60-day disabled list. |
| Friday, July 26th, 2013 | | Placed 1B George Gilliam on the 14-day disabled list, retroactive to 07/20/2013. | | Purchased the contract of RF Cedric Young from Triple A Durham. |
| Monday, May 27th, 2013 | | Placed 1B Greg Beard on the 14-day disabled list, retroactive to 05/21/2013. | | Purchased the contract of SS Jim Mason from Triple A Durham. | | Placed SP David Cole on the 60-day disabled list. |
| Monday, May 6th, 2013 | | Placed 2B Scott Andrews on the 14-day disabled list, retroactive to 05/01/2013. | | Placed SS Jeremy Gleave on the 14-day disabled list, retroactive to 05/02/2013. | | Placed 1B George Gilliam on the active roster. | | Activated 1B George Gilliam from the disabled list. |
| Sunday, April 7th, 2013 | | Signed MR Gene Cooper to a 2-year contract extension worth a total of $2,600,000. |
| Saturday, March 16th, 2013 | | Placed 3B Hitoshi Sanu on the 14-day disabled list, retroactive to 03/13/2013. |
| Saturday, March 9th, 2013 | | Placed SP Todd Blanchard on the active roster. |
| Wednesday, February 6th, 2013 | | Signed Yoshimochi Kurihara to a minor league contract with a signing bonus of $240,000. |
| Friday, February 1st, 2013 | | Signed Yataro Kobayashi to a minor league contract with a signing bonus of $2,240,000. |
| Wednesday, January 23rd, 2013 | | Signed Hitoshi Sanu to a minor league contract with a signing bonus of $4,700,000. | | Signed Tatsuzo Kamida to a minor league contract with a signing bonus of $1,170,000. |
| Sunday, January 20th, 2013 | | Signed Gabriel Phipps to a minor league contract with a signing bonus of $490,000. |
| Thursday, January 17th, 2013 | | Signed Shane Cooke to a minor league contract with a signing bonus of $910,000. |
| Wednesday, November 21st, 2012 | | SP Aurelio Ramírez received a 1-year contract through automatic renewal worth a total of $510,000. | | C Francisco Solano received a 1-year contract through automatic renewal worth a total of $510,000. | | SP David Cole received a 1-year contract through automatic renewal worth a total of $510,000. | | SP Ángel Galindo received a 1-year contract through automatic renewal worth a total of $500,000. | | SP Rosendo Hernández becomes a free-agent. | | LF Bo Hall received a 1-year contract through automatic renewal worth a total of $510,000. | | CL Mike Riley received a 1-year contract through automatic renewal worth a total of $510,000. | | MR António Aguirre received a 1-year contract through automatic renewal worth a total of $510,000. | | C Craig Wall received a 1-year contract through automatic renewal worth a total of $510,000. | | MR Chip Wolfe received a 1-year contract through automatic renewal worth a total of $510,000. | | SP Tom Bray received a 1-year contract through automatic renewal worth a total of $500,000. | | SS Martin Bryan received a 1-year contract through automatic renewal worth a total of $510,000. | | MR Doug Smith received a 1-year contract through automatic renewal worth a total of $510,000. | | SP Pancho López becomes a free-agent. | | CL Ramiro Ortega received a 1-year contract through automatic renewal worth a total of $510,000. | | MR Carl Jacobsen received a 1-year contract through automatic renewal worth a total of $500,000. | | RF Miguel Pérez received a 1-year contract through automatic renewal worth a total of $500,000. | | CF Steve James received a 1-year contract through automatic renewal worth a total of $500,000. | | SS Thurman Bowen received a 1-year contract through automatic renewal worth a total of $500,000. | | 2B Lynn Berry received a 1-year contract through automatic renewal worth a total of $500,000. | | CF Lawrence Buchanan received a 1-year contract through automatic renewal worth a total of $510,000. | | RF Justin Wallace received a 1-year contract through automatic renewal worth a total of $510,000. | | 1B Doug King received a 1-year contract through automatic renewal worth a total of $500,000. | | SS Jim Mason received a 1-year contract through automatic renewal worth a total of $510,000. |
| Monday, November 19th, 2012 | | Placed CL Mike Riley on the active roster. | | Activated CL Mike Riley from the 60-day disabled list. |
| Sunday, November 18th, 2012 | | CL Ánibal Machado received a 1-year contract through arbitration worth a total of $4,250,000. | | MR Jarrod Randolph received a 1-year contract through arbitration worth a total of $750,000. | | SP Dimitrie Serban received a 1-year contract through arbitration worth a total of $1,870,000. | | MR Gene Cooper received a 1-year contract through arbitration worth a total of $935,000. |
| Friday, November 16th, 2012 | | Signed hitting coach Steve Fox to a 1-year, $150,000 per year contract. |
| Monday, November 12th, 2012 | | Placed SS Jim Mason on the active roster. | | Placed RF Cedric Young on the active roster. |
| Sunday, October 28th, 2012 | | Hitting Coach Bobby Carter leaves the team, his contract was not renewed. |
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