| Monday, December 17th, 2012 |
| Drafted 1B Conner Blackwood in the 2012 first-year player draft (Round 1, Pick 8, 8th overall pick). |
| Drafted SP Bob Lortie in the 2012 first-year player draft (Round 2, Pick 8, 32nd overall pick). |
| Drafted SS Takanori Higashi in the 2012 first-year player draft (Round 3, Pick 8, 56th overall pick). |
| Drafted SP Yujiro Tanaka in the 2012 first-year player draft (Round 4, Pick 8, 80th overall pick). |
| Drafted CF Benjamin Martins in the 2012 first-year player draft (Round 5, Pick 8, 104th overall pick). |
| Drafted SP Senzo Heida in the 2012 first-year player draft (Round 6, Pick 8, 128th overall pick). |
| Drafted SS Reda Guillon in the 2012 first-year player draft (Round 7, Pick 8, 152nd overall pick). |
| Drafted LF Kimi Maruyama in the 2012 first-year player draft (Round 8, Pick 8, 176th overall pick). |
| Drafted LF Yoshihito Kozawa in the 2012 first-year player draft (Round 9, Pick 8, 200th overall pick). |
| Drafted SP Shojiro Yoshida in the 2012 first-year player draft (Round 10, Pick 8, 224th overall pick). |
| Drafted SS Tadanobu Hayagawa in the 2012 first-year player draft (Round 11, Pick 8, 248th overall pick). |
| Drafted SP John Rice in the 2012 first-year player draft (Round 12, Pick 8, 272nd overall pick). |
| Sunday, November 18th, 2012 |
| SP Jason Bolyard received a 1-year contract through arbitration worth a total of $3,200,000. |
| CL Mike Chase received a 1-year contract through arbitration worth a total of $2,916,000. |
| SP Mike Joyce received a 1-year contract through arbitration worth a total of $3,400,000. |
| RF Mike Johnson received a 1-year contract through arbitration worth a total of $6,847,500. |
| RF Bryan Caldwell received a 1-year contract through arbitration worth a total of $1,400,000. |
| SP Dave Lee received a 1-year contract through arbitration worth a total of $1,500,000. |
| SP Joshua Craig becomes a free-agent. |
| 3B Charlie Jackson received a 1-year contract through arbitration worth a total of $1,212,500. |
