| | | | | | | | | | |  | Major Transactions |
| | | | Thursday, August 22nd, 2019 | | Signed Hitting Coach R. Figueroa to a 5-year contract extension. |
| Thursday, May 2nd, 2019 | | Signed free agent SS R. Camarena to a 1-year contract worth a total of $2,000,000. |
| Monday, January 14th, 2019 | | Placed 2B C. Cohen on waivers. |
| Sunday, December 16th, 2018 | | Signed free agent SP D. Lopez to a 2-year contract worth a total of $19,880,000. |
| Monday, December 10th, 2018 | | Placed SP B. Buckley on the active roster. |
| Friday, December 7th, 2018 | | Signed free agent SP B. Buckley to a 3-year contract worth a total of $10,190,000. |
| Sunday, December 2nd, 2018 | | Signed free agent RF F. Soriano to a 1-year contract worth a total of $1,680,000. |
| Thursday, November 29th, 2018 | | Placed 3B E. Alustiza on the active roster. |
| Monday, November 26th, 2018 | | Signed free agent 3B E. Alustiza to a 2-year contract worth a total of $5,560,000. |
| Saturday, November 3rd, 2018 | | SP J. Haase received a 1-year contract through automatic renewal worth a total of $300,000. | | SP J. Hoffman received a 1-year contract through automatic renewal worth a total of $300,000. | | MR C. Alston received a 1-year contract through automatic renewal worth a total of $300,000. | | MR T. Prahl received a 1-year contract through automatic renewal worth a total of $300,000. | | MR D. Walker received a 1-year contract through automatic renewal worth a total of $300,000. | | SP F. Thomas becomes a free-agent. | | 2B J. Jaquez received a 1-year contract through automatic renewal worth a total of $300,000. | | C J. Blumberg received a 1-year contract through automatic renewal worth a total of $300,000. | | 3B J. Silva received a 1-year contract through automatic renewal worth a total of $300,000. | | CF R. Sandoval received a 1-year contract through automatic renewal worth a total of $300,000. | | SS C. Rasch received a 1-year contract through automatic renewal worth a total of $300,000. |
| Wednesday, October 31st, 2018 | | 1B M. Alcazar received a 1-year contract through arbitration worth a total of $1,672,560. | | C R. Heitz received a 1-year contract through arbitration worth a total of $310,500. | | MR M. Toyoharu received a 1-year contract through arbitration worth a total of $300,000. | | 3B R. Campion received a 1-year contract through arbitration worth a total of $971,520. | | SP M. Friday received a 1-year contract through arbitration worth a total of $1,484,880. | | CL E. Moyer received a 1-year contract through arbitration worth a total of $2,083,800. | | MR E. Torres received a 1-year contract through arbitration worth a total of $300,000. | | MR T. Regis received a 1-year contract through arbitration worth a total of $300,000. |
| Sunday, October 28th, 2018 | | Signed team doctor D. Gordon to a 5-year, $490,000 per year contract. |
| Thursday, October 25th, 2018 | | Placed MR C. Alston on the active roster. | | Placed SP J. Hoffman on irrevocable waivers. | | MR M. Toyoharu was designated for assignment and placed on waivers. |
| Friday, October 12th, 2018 | | MR C. Alston was claimed off waivers from Maui. |
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