| | | Thursday, December 26th, 2013 | | Signed Hubert Morris to a minor league contract with a signing bonus of $1,190,000. |
| Tuesday, December 24th, 2013 | | Signed Tetsui Takahashi to a minor league contract with a signing bonus of $160,000. |
| Saturday, December 21st, 2013 | | Signed Allen Hebert to a minor league contract with a signing bonus of $130,000. |
| Tuesday, December 17th, 2013 | | Drafted RF Hubert Morris in the 2013 first-year player draft (Round 1, Pick 23, 23rd overall pick). | | Drafted SP Trevor MacDougall in the 2013 first-year player draft (Round 2, Pick 23, 48th overall pick). | | Drafted 2B Tetsui Takahashi in the 2013 first-year player draft (Round 3, Pick 23, 72nd overall pick). | | Placed 3B Emílio Guerrero on the 40-man roster. | | Placed 3B Emílio Guerrero on the active roster. | | Released MR George Riley. | | Drafted CL Allen Hebert in the 2013 first-year player draft (Round 4, Pick 23, 96th overall pick). | | Drafted RF Floyd Lowery in the 2013 first-year player draft (Round 5, Pick 23, 120th overall pick). | | Drafted 3B Mashashi Kogawa in the 2013 first-year player draft (Round 6, Pick 23, 144th overall pick). | | Drafted LF Álex Medrano in the 2013 first-year player draft (Round 7, Pick 23, 168th overall pick). | | Drafted 1B Josh Bacon in the 2013 first-year player draft (Round 8, Pick 23, 192nd overall pick). | | Drafted CF Donald Morgan in the 2013 first-year player draft (Round 9, Pick 23, 216th overall pick). | | Drafted SP Irving Crawford in the 2013 first-year player draft (Round 10, Pick 23, 240th overall pick). | | Drafted SP Rob Wall in the 2013 first-year player draft (Round 11, Pick 23, 264th overall pick). | | Drafted 2B Jon Smith in the 2013 first-year player draft (Round 12, Pick 23, 288th overall pick). |
| Thursday, December 12th, 2013 | | Signed free agent 3B Emílio Guerrero to a 1-year contract worth a total of $5,950,000. | | Signed free agent SP Odoardo Bairros to a minor league contract. |
| Thursday, November 28th, 2013 | | Signed free agent 3B León Rangel to a 2-year contract worth a total of $9,300,000. |
| Tuesday, November 19th, 2013 | | Signed free agent MR Javier Pérez to a 1-year contract worth a total of $3,130,000. |
| Monday, November 18th, 2013 | | MR Derek Sears received a 1-year contract through arbitration worth a total of $787,500. | | C John Robertson received a 1-year contract through arbitration worth a total of $750,000. | | CF Mark Bennett received a 1-year contract through arbitration worth a total of $787,500. | | SS Bret Garrison received a 1-year contract through arbitration worth a total of $750,000. | | CF Armando Pérez becomes a free-agent. |
| Thursday, November 7th, 2013 | | Signed CL Gregory Erwin to a 2-year contract extension worth a total of $19,840,000. |
| Thursday, October 31st, 2013 | | Signed manager Steve Reed to a 5-year, $1,180,000 per year contract. |
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