| | | | | | | | | |  | Major Transactions |
| | | | Tuesday, October 9th, 2029 | | Signed 1B L. Savino to a 2-year contract extension worth a total of $2,000,000. |
| Monday, January 1st, 2029 | | Placed 2B T. Soto on the active roster. |
| Thursday, December 21st, 2028 | | Signed free agent 2B T. Soto to a 10-year contract worth a total of $280,000,000. |
| Tuesday, December 12th, 2028 | | Placed SP J. Sailer on the active roster. |
| Monday, November 27th, 2028 | | Signed free agent SP J. Sailer to a 4-year contract worth a total of $60,000,000. |
| Sunday, November 26th, 2028 | | Placed 3B D. Johnson on the active roster. | | Activated 3B D. Johnson from the disabled list. |
| Thursday, November 16th, 2028 | | C T. Sicard received a 1-year contract through automatic renewal worth a total of $300,000. | | SP C. Tuggle received a 1-year contract through automatic renewal worth a total of $300,000. | | 3B C. Henson received a 1-year contract through automatic renewal worth a total of $300,000. | | SS J. Clemente received a 1-year contract through automatic renewal worth a total of $300,000. | | RF C. Cordero becomes a free-agent. | | MR E. Anthony received a 1-year contract through automatic renewal worth a total of $300,000. | | MR T. Lopes received a 1-year contract through automatic renewal worth a total of $300,000. |
| Monday, November 13th, 2028 | | 2B J. Anderson received a 1-year contract through arbitration worth a total of $400,200. | | SP H. Dengler received a 1-year contract through arbitration worth a total of $972,900. | | SP M. Marshall received a 1-year contract through arbitration worth a total of $300,000. | | SS F. Villarreal received a 1-year contract through arbitration worth a total of $386,400. | | C V. Benedicto received a 1-year contract through arbitration worth a total of $331,200. | | CF P. Campo received a 1-year contract through arbitration worth a total of $5,524,200. | | 2B C. Sherrick received a 1-year contract through arbitration worth a total of $876,300. | | MR R. Mains received a 1-year contract through arbitration worth a total of $1,365,000. | | CL B. Riebe received a 1-year contract through arbitration worth a total of $2,842,000. | | SP L. Stills received a 1-year contract through arbitration worth a total of $2,425,600. | | C C. Minto received a 1-year contract through arbitration worth a total of $379,500. |
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