| | | Monday, February 1st, 2016 | | Signed free agent SP Andy Francis to a minor league contract. | | Signed free agent SP Jorge Guillén to a minor league contract. | | Signed free agent MR Javier Rojas to a 5-year contract worth a total of $24,500,000. | | Signed free agent SP Juan Lexcano to a minor league contract. | | Signed free agent SP Barry Kuhn to a minor league contract. | | Placed MR Javier Rojas on the 40-man roster. | | Placed MR Javier Rojas on the active roster. | | Placed SP Mario Arredondo on the 60-day disabled list. |
| Saturday, January 30th, 2016 | | Signed free agent SP Mario Arredondo to a 3-year contract worth a total of $4,500,000. |
| Friday, December 25th, 2015 | | Signed free agent CF Timothee Chili to a 4-year contract worth a total of $56,000,000. |
| Tuesday, November 17th, 2015 | | 2B Miguel Rodríguez received a 1-year contract through automatic renewal worth a total of $400,000. | | MR Joe Hogan received a 1-year contract through automatic renewal worth a total of $400,000. | | SP Norm Yabsley becomes a free-agent. | | SP Dirk Franks becomes a free-agent. | | LF Craig Olsen becomes a free-agent. | | 3B Pedro Aragón becomes a free-agent. | | 1B Juan Casillas received a 1-year contract through automatic renewal worth a total of $400,000. | | MR Christian Cole becomes a free-agent. | | SP Doménico García received a 1-year contract through automatic renewal worth a total of $400,000. | | 3B Connor Moss received a 1-year contract through automatic renewal worth a total of $400,000. | | SP Frank Rush received a 1-year contract through automatic renewal worth a total of $400,000. | | RF Jonathan Smith received a 1-year contract through automatic renewal worth a total of $400,000. | | CF Gene Sanders received a 1-year contract through automatic renewal worth a total of $400,000. | | 3B Enrique Reyes received a 1-year contract through automatic renewal worth a total of $400,000. | | C Coen van Meer received a 1-year contract through automatic renewal worth a total of $400,000. | | MR Tom Smith received a 1-year contract through automatic renewal worth a total of $400,000. | | SP Esteban García becomes a free-agent. | | SP Jared Gunther becomes a free-agent. | | 3B Justin Fitzgerald becomes a free-agent. | | CL Brian Wilson becomes a free-agent. | | SP Ming-feng Hark becomes a free-agent. | | MR Dong Zi becomes a free-agent. | | SP Jermaine Schmidt becomes a free-agent. | | MR Esteban Feliciano becomes a free-agent. |
| Saturday, November 14th, 2015 | | 2B Zach Tyler received a 1-year contract through arbitration worth a total of $4,400,000. | | MR Daron Ward received a 1-year contract through arbitration worth a total of $600,000. | | SP Pierre Payette received a 1-year contract through arbitration worth a total of $600,000. | | MR Joe Wallace received a 1-year contract through arbitration worth a total of $3,200,000. |
| Saturday, October 24th, 2015 | | SP Don Allen retires. |
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