| | | Monday, December 17th, 2012 | | Drafted RF Pat Bancroft in the 2012 first-year player draft (Round 1, Pick 24, 24th overall pick). | | Drafted RF Richard Arnold in the 2012 first-year player draft (Round 2, Pick 24, 48th overall pick). | | Drafted 2B Yodo Miyashita in the 2012 first-year player draft (Round 3, Pick 24, 72nd overall pick). | | Drafted SP Toyoharu Watanabe in the 2012 first-year player draft (Round 4, Pick 24, 96th overall pick). | | Drafted 3B Dave Adams in the 2012 first-year player draft (Round 5, Pick 24, 120th overall pick). | | Drafted CF Isei Fujihara in the 2012 first-year player draft (Round 6, Pick 24, 144th overall pick). | | Drafted 2B Tommy Bruce in the 2012 first-year player draft (Round 7, Pick 24, 168th overall pick). | | Drafted SP Kai-shek Huang in the 2012 first-year player draft (Round 8, Pick 24, 192nd overall pick). | | Drafted LF Aaron Nunn in the 2012 first-year player draft (Round 9, Pick 24, 216th overall pick). | | Drafted SP Dick Peddle in the 2012 first-year player draft (Round 10, Pick 24, 240th overall pick). | | Drafted 2B Shotaro Fujii in the 2012 first-year player draft (Round 11, Pick 24, 264th overall pick). | | Drafted SP Josh Crowley in the 2012 first-year player draft (Round 12, Pick 24, 288th overall pick). |
| Tuesday, December 4th, 2012 | | Signed free agent LF Cristián Orozco to a 2-year contract worth a total of $1,500,000. |
| Wednesday, November 21st, 2012 | | SP Adam Thomas received a 1-year contract through automatic renewal worth a total of $510,000. | | 2B Dave Lane received a 1-year contract through automatic renewal worth a total of $510,000. | | MR Jim Fleming received a 1-year contract through automatic renewal worth a total of $510,000. | | C Matt Sanford received a 1-year contract through automatic renewal worth a total of $510,000. | | C George White received a 1-year contract through automatic renewal worth a total of $510,000. | | SS John White received a 1-year contract through automatic renewal worth a total of $510,000. | | CF Manolo Palmeiro received a 1-year contract through automatic renewal worth a total of $510,000. | | MR Dan Morris received a 1-year contract through automatic renewal worth a total of $510,000. | | MR Jerry Schultz received a 1-year contract through automatic renewal worth a total of $510,000. | | MR John James received a 1-year contract through automatic renewal worth a total of $500,000. | | SP Jorge Rivero received a 1-year contract through automatic renewal worth a total of $500,000. | | 1B Jasper Williams received a 1-year contract through automatic renewal worth a total of $510,000. | | C Carlos Moreno received a 1-year contract through automatic renewal worth a total of $500,000. | | MR John Lewis becomes a free-agent. |
| Sunday, November 18th, 2012 | | 3B Miguel Ramos received a 1-year contract through arbitration worth a total of $750,000. | | MR Jimmy Drake received a 1-year contract through arbitration worth a total of $3,400,000. | | MR R.J. Lukies received a 1-year contract through arbitration worth a total of $4,041,000. | | LF Alex Austin received a 1-year contract through arbitration worth a total of $2,420,000. | | CL Javier Solís received a 1-year contract through arbitration worth a total of $3,660,000. | | 2B John Everhart received a 1-year contract through arbitration worth a total of $750,000. |
| Friday, November 2nd, 2012 | | Signed bench coach Rob Swain to a 2-year, $750,000 per year contract. |
| Thursday, November 1st, 2012 | | Signed pitching coach Ronnie Hampton to a 3-year, $765,000 per year contract. |
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