| | | Thursday, December 26th, 2013 | | Signed Shawn Turnbull to a minor league contract with a signing bonus of $255,000. |
| Saturday, December 21st, 2013 | | Signed Cédric Leroux to a minor league contract with a signing bonus of $550,000. |
| Thursday, December 19th, 2013 | | Signed Kinnosuke Sato to a minor league contract with a signing bonus of $6,220,000. |
| Tuesday, December 17th, 2013 | | Drafted SP Kinnosuke Sato in the 2013 first-year player draft (Round 1, Pick 1, 1st overall pick). | | Drafted SP Cédric Leroux in the 2013 first-year player draft (Round 2, Pick 1, 26th overall pick). | | Drafted MR Shawn Turnbull in the 2013 first-year player draft (Round 3, Pick 1, 50th overall pick). | | Drafted SP Ogai Nakamura in the 2013 first-year player draft (Round 4, Pick 1, 74th overall pick). | | Drafted CF Don Orton in the 2013 first-year player draft (Round 5, Pick 1, 98th overall pick). | | Drafted SP Pu-feng Seow in the 2013 first-year player draft (Round 6, Pick 1, 122nd overall pick). | | Drafted LF Ed Conner in the 2013 first-year player draft (Round 7, Pick 1, 146th overall pick). | | Drafted SP Reid Harrell in the 2013 first-year player draft (Round 8, Pick 1, 170th overall pick). | | Drafted 1B Tomiichi Kishita in the 2013 first-year player draft (Round 9, Pick 1, 194th overall pick). | | Drafted CF Peng Ji in the 2013 first-year player draft (Round 10, Pick 1, 218th overall pick). | | Drafted CF Eskil Murphy in the 2013 first-year player draft (Round 11, Pick 1, 242nd overall pick). | | Drafted SP Eugene Wright in the 2013 first-year player draft (Round 12, Pick 1, 266th overall pick). |
| Sunday, December 8th, 2013 | | Signed free agent C Carl Quick to a 1-year contract worth a total of $650,000. |
| Saturday, November 23rd, 2013 | | Placed SP Marty Little on the 40-man roster. |
| Thursday, November 21st, 2013 | | 2B Laurent Mendes received a 1-year contract through automatic renewal worth a total of $500,000. | | SP William Little received a 1-year contract through automatic renewal worth a total of $510,000. | | LF Dan Clark received a 1-year contract through automatic renewal worth a total of $500,000. | | SP Pat Heard received a 1-year contract through automatic renewal worth a total of $500,000. | | C Ted King received a 1-year contract through automatic renewal worth a total of $510,000. | | CF P.J. Baker received a 1-year contract through automatic renewal worth a total of $500,000. | | MR Chester Collins becomes a free-agent. | | SP Mark Bauer received a 1-year contract through automatic renewal worth a total of $500,000. | | C Steven McDonald received a 1-year contract through automatic renewal worth a total of $500,000. | | CL Ricardo Pérez received a 1-year contract through automatic renewal worth a total of $500,000. | | SP Cody Jackson received a 1-year contract through automatic renewal worth a total of $510,000. | | SP Glenn Floyd received a 1-year contract through automatic renewal worth a total of $500,000. | | SP Barry Yates becomes a free-agent. | | MR Jason Elliott received a 1-year contract through automatic renewal worth a total of $500,000. | | CL Colin David received a 1-year contract through automatic renewal worth a total of $500,000. | | MR Fernando Ramírez becomes a free-agent. | | Signed free agent CF Alfonso Rodríguez to a minor league contract. |
| Wednesday, November 20th, 2013 | | Traded 17-year-old minor league first baseman George Soucy to the Montreal Bandits, getting nothing in return. |
| Monday, November 18th, 2013 | | SS Ron Hamm received a 1-year contract through arbitration worth a total of $6,875,000. | | RF Joe Leftwich received a 1-year contract through arbitration worth a total of $6,517,500. | | SP Mike Ege received a 1-year contract through arbitration worth a total of $750,000. | | MR Pat Leaper received a 1-year contract through arbitration worth a total of $1,028,500. | | 1B Shannon Chase received a 1-year contract through arbitration worth a total of $750,000. | | MR Ernie Hawkins received a 1-year contract through arbitration worth a total of $750,000. |
| Friday, November 15th, 2013 | | Placed LF Tom Becker on the 40-man roster. | | Placed LF Tom Becker on the active roster. |
| Wednesday, November 13th, 2013 | | Signed LF Tom Becker to a 8-year contract extension worth a total of $176,000,000. |
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