Cubs Roster & Staff
Transactions
| Date | Transaction |
| 07/08/26 | Chicago Cubs sent RHP Phil Maton on a rehab assignment to Iowa Cubs. |
| 07/08/26 | Chicago Cubs signed LHP Josh Fleming. |
| 07/07/26 | Chicago Cubs sent RHP Bryse Wilson outright to Iowa Cubs. |
| 07/06/26 | Chicago Cubs signed free agent LF Chas McCormick to a minor league contract. |
| 07/05/26 | Chicago Cubs sent RHP Jameson Taillon on a rehab assignment to South Bend Cubs. |
| 07/05/26 | Chicago Cubs sent RHP Jameson Taillon on a rehab assignment to South Bend Cubs. |
| 07/04/26 | Chicago Cubs signed free agent RHP Jake Woodford. |
| 07/04/26 | Chicago Cubs designated RHP Bryse Wilson for assignment. |
| 07/03/26 | Chicago Cubs selected the contract of LHP Drew Pomeranz from Iowa Cubs. |
| 07/02/26 | Chicago Cubs signed free agent RHP Jacob Wallace to a minor league contract. |
| 07/02/26 | Chicago Cubs signed free agent SS Luis Abreu to a minor league contract. |
| 07/02/26 | Chicago Cubs optioned LHP Jordan Wicks to Iowa Cubs. |
| 07/01/26 | RHP Christian Roa elected free agency. |
| 07/01/26 | Chicago Cubs sent RHP Eduarniel Núñez outright to Iowa Cubs. |
| 07/01/26 | Chicago Cubs acquired 3B Michael Hallquist from the Milwaukee Milkmen of the American Association. |