| | | Thursday, December 26th, 2013 | | Signed Masahide Memoto to a minor league contract with a signing bonus of $870,000. | | Signed Artie Morse to a minor league contract with a signing bonus of $140,000. |
| Tuesday, December 24th, 2013 | | Signed Woody Owen to a minor league contract with a signing bonus of $250,000. |
| Friday, December 20th, 2013 | | Signed Billy Russell to a minor league contract with a signing bonus of $130,000. |
| Sunday, December 1st, 2013 | | Drafted MR Tomás Menéndez in the 2013 Rule 5 Draft (Round 1, Pick 20, 20th overall Pick), from the So Cal Republic. | | Drafted 1B Daniel Roberts in the 2013 Rule 5 Draft (Round 2, Pick 20, 44th overall Pick), from the Maple Marauders. | | Drafted 2B Tony Wright in the 2013 Rule 5 Draft (Round 3, Pick 20, 68th overall Pick), from the Maple Marauders. |
| Wednesday, November 27th, 2013 | | Signed CL Lyle Arnold to a 5-year contract extension worth a total of $49,000,000. | | Signed SP Javier Flores to a 3-year contract extension worth a total of $50,000,000. |
| Thursday, November 21st, 2013 | | SP Roberto Campos received a 1-year contract through automatic renewal worth a total of $510,000. | | CF Joe Herman received a 1-year contract through automatic renewal worth a total of $510,000. | | RF Holden Adams received a 1-year contract through automatic renewal worth a total of $510,000. | | SS Bob Fry received a 1-year contract through automatic renewal worth a total of $500,000. | | SP José Serrano received a 1-year contract through automatic renewal worth a total of $510,000. | | C Foster O'Reilly received a 1-year contract through automatic renewal worth a total of $500,000. | | RF Jorge Mora received a 1-year contract through automatic renewal worth a total of $510,000. | | MR Bill Wells becomes a free-agent. | | RF Will Johnson received a 1-year contract through arbitration worth a total of $6,615,000. | | SP Ronald Burnett received a 1-year contract through automatic renewal worth a total of $500,000. | | LF Marvin Bowman received a 1-year contract through automatic renewal worth a total of $510,000. | | SS Brennan Akers becomes a free-agent. | | MR Arnie West becomes a free-agent. |
| Monday, November 18th, 2013 | | LF Dave Olson received a 1-year contract through arbitration worth a total of $5,000,000. | | 2B Herman Campbell received a 1-year contract through arbitration worth a total of $2,204,000. | | 1B Dave Hutchinson becomes a free-agent. | | MR Sixto Lavio received a 1-year contract through arbitration worth a total of $2,826,000. | | CF Will Dook becomes a free-agent. | | SP Travis James received a 1-year contract through arbitration worth a total of $800,000. |
| Tuesday, November 12th, 2013 | | Signed SP Bob Lee to a 4-year contract extension worth a total of $52,000,000. |
| Friday, November 8th, 2013 | | Signed MR Juan Velázquez to a 2-year contract extension worth a total of $15,480,000. |
| Monday, October 28th, 2013 | | C Joe Barnes was designated for assignment and placed on waivers. |
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