| | | | | | | | | | |  | Major Transactions |
| | | | Monday, March 4th, 2019 | | Placed 2B M. Cardoza on the active roster. |
| Sunday, March 3rd, 2019 | | Signed free agent 2B M. Cardoza to a 1-year contract worth a total of $400,000. |
| Saturday, February 16th, 2019 | | Signed free agent LF C. Moss to a 1-year contract worth a total of $10,000,000. |
| Saturday, February 2nd, 2019 | | Signed Team Trainer J. Castro to a 5-year contract extension. |
| Friday, February 1st, 2019 | | Signed Pitching Coach A. O'Rorke to a 5-year contract extension. | | Signed Scouting Director S. Conway to a 4-year contract extension. |
| Thursday, January 31st, 2019 | | Signed free agent 3B C. Santoyo to a 1-year contract worth a total of $610,000. | | Signed free agent MR J. Cropper to a 1-year contract worth a total of $6,500,000. | | Placed MR J. Cropper on the active roster. | | Placed 3B C. Santoyo on the active roster. |
| Monday, January 14th, 2019 | | Placed C T. Geter on the active roster. | | Placed C D. Stiger on the active roster. | | Placed RF P. Shunk on the active roster. | | Activated RF P. Shunk from the disabled list. |
| Wednesday, January 9th, 2019 | | Signed 3B G. Labarre to a 4-year contract extension worth a total of $68,800,000. |
| Monday, December 17th, 2018 | | Placed SP J. Okane on the active roster. |
| Tuesday, December 11th, 2018 | | Signed free agent SP J. Okane to a 3-year contract worth a total of $39,270,000. |
| Saturday, November 3rd, 2018 | | 1B M. Slye becomes a free-agent. | | 3B C. Pais received a 1-year contract through automatic renewal worth a total of $300,000. | | CF T. Combs received a 1-year contract through automatic renewal worth a total of $300,000. | | 2B J. Drum received a 1-year contract through automatic renewal worth a total of $300,000. | | CL J. Theriault becomes a free-agent. | | MR W. Elton becomes a free-agent. | | CF M. López received a 1-year contract through automatic renewal worth a total of $300,000. | | MR M. Galindo received a 1-year contract through automatic renewal worth a total of $300,000. | | 1B J. Flores received a 1-year contract through automatic renewal worth a total of $300,000. | | SP J. Morales becomes a free-agent. | | 2B D. Lorenzen becomes a free-agent. | | MR F. Erickson received a 1-year contract through automatic renewal worth a total of $300,000. | | MR D. Castanon received a 1-year contract through automatic renewal worth a total of $300,000. | | LF G. Silva received a 1-year contract through automatic renewal worth a total of $300,000. |
| Wednesday, October 31st, 2018 | | CL T. Ramirez received a 1-year contract through arbitration worth a total of $2,118,300. | | MR F. Powell received a 1-year contract through arbitration worth a total of $897,000. | | MR J. Centeno received a 1-year contract through arbitration worth a total of $300,000. | | C K. King received a 1-year contract through arbitration worth a total of $2,503,120. | | C B. Webb received a 1-year contract through arbitration worth a total of $317,400. | | SS A. Gelman received a 1-year contract through arbitration worth a total of $310,500. | | CF B. Elder received a 1-year contract through arbitration worth a total of $310,500. | | LF C. Pla received a 1-year contract through arbitration worth a total of $317,400. |
| Monday, October 29th, 2018 | | Placed RF P. Shunk on the 15-day disabled list. | | Placed MR M. Galindo on the active roster. |
| |
