Pirates Roster & Staff
Transactions
| Date | Transaction |
| 12/10/25 | Pittsburgh Pirates purchased contract of LHP Brandon Neeck in the Rule 5 Draft, AAA Phase. |
| 12/10/25 | Pittsburgh Pirates purchased contract of RHP Carter Baumler in the Rule 5 Draft. |
| 12/10/25 | Pittsburgh Pirates purchased contract of RHP Junior Flores in the Rule 5 Draft, AAA Phase. |
| 12/10/25 | Cleveland Guardians purchased contract of RHP Jack Carey in the Rule 5 Draft, AAA Phase. |
| 12/10/25 | Pittsburgh Pirates purchased contract of RHP Kyle Larsen in the Rule 5 Draft, AAA Phase. |
| 12/10/25 | Pittsburgh Pirates purchased contract of RHP Bryan Mena in the Rule 5 Draft, AAA Phase. |
| 12/05/25 | Pittsburgh Pirates signed free agent RHP Mervin Maiz to a minor league contract. |
| 12/05/25 | Pittsburgh Pirates claimed OF Marco Luciano off waivers from San Francisco Giants. |
| 12/05/25 | Baltimore Orioles claimed LF Will Robertson off waivers from Pittsburgh Pirates. |
| 12/04/25 | Pittsburgh Pirates traded RHP Johan Oviedo, LHP Tyler Samaniego and C Adonys Guzman to Boston Red Sox for CF Jhostynxon Garcia and RHP Jesus Travieso. |
| 12/04/25 | Pittsburgh Pirates traded RHP Johan Oviedo, LHP Tyler Samaniego and C Adonys Guzman to Boston Red Sox for CF Jhostynxon Garcia and RHP Jesus Travieso. |
| 12/04/25 | Pittsburgh Pirates traded RHP Johan Oviedo, LHP Tyler Samaniego and C Adonys Guzman to Boston Red Sox for CF Jhostynxon Garcia and RHP Jesus Travieso. |
| 12/04/25 | Pittsburgh Pirates traded RHP Johan Oviedo, LHP Tyler Samaniego and C Adonys Guzman to Boston Red Sox for CF Jhostynxon Garcia and RHP Jesus Travieso. |
| 12/04/25 | Pittsburgh Pirates traded RHP Johan Oviedo, LHP Tyler Samaniego and C Adonys Guzman to Boston Red Sox for CF Jhostynxon Garcia and RHP Jesus Travieso. |
| 12/03/25 | RHP Johan Oviedo roster status changed by Pittsburgh Pirates. |