| | | Thursday, September 26th, 2013 | | Placed SP Clement Coffey on the 60-day disabled list. |
| Tuesday, September 10th, 2013 | | Placed SP José Martínez on the 15-day disabled list. |
| Monday, August 26th, 2013 | | Placed RF Carlos Acosta on the 60-day disabled list. |
| Wednesday, August 14th, 2013 | | Failed to sign supplemental 1st round draft pick Jun Ikeda. |
| Monday, August 12th, 2013 | | Placed DH Pedro Canales on the 60-day disabled list. | | Placed SP Kevin Owens on the 60-day disabled list. |
| Monday, August 5th, 2013 | | Placed 1B Jared Askey on the 60-day disabled list. |
| Monday, July 29th, 2013 | | Placed MR Bartolo Báez on the 60-day disabled list. |
| Friday, July 26th, 2013 | | Placed 1B Yoshi Kichida on the 60-day disabled list. | | Placed SS Jared Askey on the active roster. |
| Monday, July 15th, 2013 | | Signed Juan López to a minor league contract with a signing bonus of $720,000. |
| Wednesday, July 10th, 2013 | | Signed Bo Flick to a minor league contract with a signing bonus of $4,990,000. |
| Tuesday, July 9th, 2013 | | Signed 1st round draft pick Juan Martínez for a signing bonus of $5,230,000 and a 3-year major league contract worth a total of $15,000,000. | | Signed George McJannett to a minor league contract with a signing bonus of $650,000. |
| Sunday, July 7th, 2013 | | Signed Jim McFarland to a minor league contract with a signing bonus of $240,000. |
| Wednesday, July 3rd, 2013 | | Signed Michael Brown to a minor league contract with a signing bonus of $210,000. |
| Tuesday, July 2nd, 2013 | | Signed Mike Pearce to a minor league contract with a signing bonus of $790,000. |
| Wednesday, June 19th, 2013 | | Signed Ken Conroy to a minor league contract with a signing bonus of $700,000. |
| Monday, April 15th, 2013 | | 2B Dan Todd was designated for assignment and placed on waivers. | | Placed 2B Francisco Mendoza on the active roster. | | MR Mark Jensen was designated for assignment and placed on waivers. | | Placed MR John Forrest on the active roster. |
| Saturday, March 23rd, 2013 | | Placed CL Ángel López on the 15-day disabled list. |
| Saturday, March 16th, 2013 | | Placed DH Pedro Canales on the 15-day disabled list. |
| Friday, February 8th, 2013 | | Placed SP Glenn Sweeney on the active roster. | | Activated SP Glenn Sweeney from the 60-day disabled list. |
| Saturday, December 1st, 2012 | | MR Ricardo Caraballo was designated for assignment and placed on waivers. | | CL Naoki Jouda was designated for assignment and placed on waivers. | | CL Shaun Margill was designated for assignment and placed on waivers. |
| Sunday, November 18th, 2012 | | SP Jim Larkin received a 1-year contract through automatic renewal worth a total of $400,000. | | SP Clement Coffey received a 1-year contract through automatic renewal worth a total of $400,000. | | MR Jim Billings received a 1-year contract through automatic renewal worth a total of $400,000. | | RF Geomar Cardone received a 1-year contract through automatic renewal worth a total of $400,000. | | SP Jack Wright received a 1-year contract through automatic renewal worth a total of $400,000. | | 2B Joaquín Rosário becomes a free-agent. | | C Don Pearce received a 1-year contract through automatic renewal worth a total of $400,000. | | SP Glenn Sweeney received a 1-year contract through automatic renewal worth a total of $400,000. | | DH Pedro Canales received a 1-year contract through automatic renewal worth a total of $400,000. | | SS Guy Wilson received a 1-year contract through automatic renewal worth a total of $400,000. | | C Teddy Bryant becomes a free-agent. | | CF Teo Gómez received a 1-year contract through automatic renewal worth a total of $400,000. | | CF Ramón Mota becomes a free-agent. | | SP Marcos Pineda received a 1-year contract through automatic renewal worth a total of $400,000. | | MR Tom Stone received a 1-year contract through automatic renewal worth a total of $400,000. | | SP Jesús Rivera received a 1-year contract through automatic renewal worth a total of $400,000. |
| Thursday, November 15th, 2012 | | LF José Sanduval received a 1-year contract through arbitration worth a total of $5,500,000. | | RF Carlos Acosta received a 1-year contract through arbitration worth a total of $1,450,440. | | MR Bartolo Báez received a 1-year contract through arbitration worth a total of $1,500,000. | | SP José Martínez received a 1-year contract through arbitration worth a total of $1,196,000. | | RF Myles Snow received a 1-year contract through arbitration worth a total of $4,576,000. | | MR Mark Jensen received a 1-year contract through arbitration worth a total of $600,000. | | SP Javier Flores received a 1-year contract through arbitration worth a total of $950,000. | | 1B Mario Otero received a 1-year contract through arbitration worth a total of $600,000. | | SS Eddy Woods received a 1-year contract through arbitration worth a total of $1,200,000. |
| Tuesday, November 6th, 2012 | | Placed SP Marcos Pineda on the active roster. |
|
|
