| | | | | | | | | | |  | Major Transactions |
| | | | Tuesday, September 24th, 2019 | | Signed free agent SS F. Smith to a 2-year contract worth a total of $4,600,000. |
| Friday, August 16th, 2019 | | SS C. Gomez was designated for assignment and placed on waivers. | | Placed 2B J. Grondin on the active roster. | | Activated 2B J. Grondin from the disabled list. |
| Tuesday, July 2nd, 2019 | | Signed free agent SP S. Gonzalez to a 1-year contract worth a total of $2,300,000. |
| Thursday, June 6th, 2019 | | Signed SP W. Lawrence to a 4-year contract extension worth a total of $29,500,000. |
| Friday, March 1st, 2019 | | Traded 20-year old minor league left fielder R. Ramírez to the Maui Mashers, getting 24-year old minor league catcher K. Huang and $3,000,000 in cash in return. |
| Monday, February 25th, 2019 | | Traded a 10th round draft pick to the Seattle Monarchs, getting $1 in cash in return. |
| Wednesday, January 30th, 2019 | | Signed Manager J. Price to a 5-year contract extension. |
| Tuesday, January 22nd, 2019 | | Signed free agent 2B J. Grondin to a 6-year contract worth a total of $174,060,000. |
| Friday, January 11th, 2019 | | Signed free agent SP C. Hendon to a 2-year contract worth a total of $1,450,000. |
| Tuesday, January 8th, 2019 | | Signed free agent MR M. Salcido to a 2-year contract worth a total of $1,000,000. |
| Monday, December 31st, 2018 | | Placed CF A. Suarez on the active roster. | | Placed LF L. Fenster on the active roster. | | LF L. Fenster was designated for assignment and placed on waivers. |
| Saturday, December 29th, 2018 | | Signed free agent CF A. Suarez to a 1-year contract worth a total of $1,020,000. |
| Tuesday, December 25th, 2018 | | Signed free agent LF L. Fenster to a 1-year contract worth a total of $490,000. |
| Monday, December 17th, 2018 | | Placed CF A. Mendonca on the active roster. |
| Tuesday, December 11th, 2018 | | Signed free agent CF A. Mendonca to a 1-year contract worth a total of $800,000. |
| Wednesday, November 28th, 2018 | | Signed free agent MR J. Fleitas to a 2-year contract worth a total of $9,560,000. |
| Saturday, November 3rd, 2018 | | SP J. Kautz received a 1-year contract through automatic renewal worth a total of $300,000. | | RF I. López received a 1-year contract through automatic renewal worth a total of $300,000. | | CL J. Curry received a 1-year contract through automatic renewal worth a total of $300,000. | | MR M. Mendoza received a 1-year contract through automatic renewal worth a total of $300,000. | | MR D. Martinez becomes a free-agent. | | CF A. Mendonca becomes a free-agent. | | RF F. Soriano becomes a free-agent. | | 1B P. García received a 1-year contract through automatic renewal worth a total of $300,000. | | C J. Johnstone received a 1-year contract through automatic renewal worth a total of $300,000. | | 1B D. Seibel received a 1-year contract through automatic renewal worth a total of $300,000. | | MR J. Cropper becomes a free-agent. | | 3B A. Barrenechea received a 1-year contract through automatic renewal worth a total of $300,000. | | 2B F. Mendoza received a 1-year contract through automatic renewal worth a total of $500,000. |
| Wednesday, October 31st, 2018 | | SP W. Lawrence received a 1-year contract through arbitration worth a total of $3,528,000. | | SP J. Cooper received a 1-year contract through arbitration worth a total of $1,932,000. | | C G. Herrera received a 1-year contract through arbitration worth a total of $5,295,300. | | SP E. Guzman received a 1-year contract through arbitration worth a total of $300,000. | | CF C. Horta received a 1-year contract through arbitration worth a total of $317,400. | | SS C. Gomez received a 1-year contract through arbitration worth a total of $337,500. | | LF S. Evanoff received a 1-year contract through arbitration worth a total of $4,958,500. |
| Thursday, October 11th, 2018 | | Executed the last optional contract year of SS R. Peppers. | | Voided the team option year of CF A. Mendonca. |
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