| | | | | | | | | | |  | Major Transactions |
| | | | Sunday, September 1st, 2019 | | Placed SP G. Smith on the active roster. | | Activated SP G. Smith from the disabled list. | | Purchased the contract of CF C. Bell from Triple A Dayton. | | Purchased the contract of LF J. Kratz from Triple A Dayton. | | Purchased the contract of SS J. Cameron from Triple A Dayton. |
| Saturday, December 15th, 2018 | | Signed free agent 2B D. Burdine to a 3-year contract worth a total of $14,250,000. |
| Monday, December 10th, 2018 | | Placed 1B T. Palacio on the active roster. |
| Thursday, December 6th, 2018 | | Signed free agent 1B T. Palacio to a 3-year contract worth a total of $33,900,000. |
| Thursday, November 15th, 2018 | | Placed CF G. Fournier on the active roster. | | Activated CF G. Fournier from the disabled list. |
| Saturday, November 3rd, 2018 | | SS J. Hukill becomes a free-agent. | | CF E. Boothe becomes a free-agent. | | CF G. Fournier received a 1-year contract through automatic renewal worth a total of $300,000. | | 3B B. Moroney received a 1-year contract through automatic renewal worth a total of $300,000. | | 2B M. Cardoza becomes a free-agent. | | RF F. Aldape received a 1-year contract through automatic renewal worth a total of $300,000. | | SP I. Diehl becomes a free-agent. | | 1B L. Walker received a 1-year contract through automatic renewal worth a total of $300,000. | | SP J. Shuttleworth becomes a free-agent. |
| Wednesday, October 31st, 2018 | | 2B K. Lea received a 1-year contract through arbitration worth a total of $5,400,000. | | LF G. Vidal received a 1-year contract through arbitration worth a total of $669,600. | | MR R. Brown received a 1-year contract through arbitration worth a total of $1,385,520. | | MR J. Fullen received a 1-year contract through arbitration worth a total of $1,346,880. | | C L. Bell received a 1-year contract through arbitration worth a total of $310,500. | | C T. Sparrow received a 1-year contract through arbitration worth a total of $4,549,600. | | MR D. Coppock received a 1-year contract through arbitration worth a total of $1,313,280. | | SP G. Smith received a 1-year contract through arbitration worth a total of $2,109,440. | | MR T. Errico received a 1-year contract through arbitration worth a total of $2,265,000. |
| Tuesday, October 23rd, 2018 | | Signed SP D. Andrews to a 2-year contract extension worth a total of $4,340,000. |
| Thursday, October 11th, 2018 | | SS J. Hukill voids his last optional contract year. | | C W. Guzman retires. |
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