| | | | | | | | | | |  | Major Transactions |
| | | | Sunday, June 16th, 2019 | | LF S. Gurrola was designated for assignment and placed on waivers. | | Placed CF F. Valverde on the active roster. | | Activated CF F. Valverde from the disabled list. |
| Tuesday, February 5th, 2019 | | Signed free agent RF H. Pires to a 3-year contract worth a total of $17,210,000. |
| Monday, February 4th, 2019 | | Placed MR A. Cabaña on the active roster. | | Placed MR D. Martinez on the active roster. |
| Saturday, February 2nd, 2019 | | Signed free agent MR D. Martinez to a 2-year contract worth a total of $19,380,000. | | Signed free agent MR A. Cabaña to a 2-year contract worth a total of $9,880,000. |
| Monday, January 21st, 2019 | | Placed SP I. Diehl on the active roster. |
| Sunday, January 20th, 2019 | | Signed free agent SP I. Diehl to a 3-year contract worth a total of $33,150,000. |
| Monday, December 10th, 2018 | | Signed free agent 2B D. Lorenzen to a 2-year contract worth a total of $1,420,000. | | Placed 2B D. Lorenzen on the active roster. |
| Saturday, November 3rd, 2018 | | C J. Clemente received a 1-year contract through automatic renewal worth a total of $300,000. | | SP S. Gonzalez becomes a free-agent. | | SP R. Vaz becomes a free-agent. | | 3B A. Velasco received a 1-year contract through automatic renewal worth a total of $300,000. | | SP J. Cox received a 1-year contract through automatic renewal worth a total of $300,000. | | CF F. Valverde received a 1-year contract through automatic renewal worth a total of $730,000. | | MR E. Grinder received a 1-year contract through automatic renewal worth a total of $300,000. | | SS F. Smith becomes a free-agent. | | MR G. Castillo received a 1-year contract through automatic renewal worth a total of $300,000. | | MR L. Young received a 1-year contract through automatic renewal worth a total of $300,000. | | 2B M. Harder received a 1-year contract through automatic renewal worth a total of $300,000. | | LF S. Gurrola received a 1-year contract through automatic renewal worth a total of $300,000. | | MR C. Wood received a 1-year contract through automatic renewal worth a total of $300,000. | | RF H. Pires becomes a free-agent. | | SP A. Zavala received a 1-year contract through automatic renewal worth a total of $300,000. | | 1B A. Ortiz received a 1-year contract through automatic renewal worth a total of $300,000. | | 2B M. Koppale received a 1-year contract through automatic renewal worth a total of $300,000. | | SP R. Adorno becomes a free-agent. |
| Wednesday, October 31st, 2018 | | 2B B. Cremeans received a 1-year contract through arbitration worth a total of $2,415,000. | | MR J. Casady received a 1-year contract through arbitration worth a total of $507,840. | | MR A. Cruz received a 1-year contract through arbitration worth a total of $300,000. | | SP R. Padua received a 1-year contract through arbitration worth a total of $2,289,600. | | 1B J. Leboeuf received a 1-year contract through arbitration worth a total of $317,400. | | SS F. Mejias received a 1-year contract through arbitration worth a total of $310,500. | | MR D. Murphy received a 1-year contract through arbitration worth a total of $300,000. | | C E. Coolidge received a 1-year contract through arbitration worth a total of $324,000. | | SP J. Edgar received a 1-year contract through arbitration worth a total of $300,000. | | RF M. Sasaki received a 1-year contract through arbitration worth a total of $310,500. |
| Thursday, October 18th, 2018 | | Voided the team option year of RF H. Pires. | | Voided the team option year of SP R. Vaz. |
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