Cubs Roster & Staff
Transactions
| Date | Transaction |
| 08/30/23 | Chicago Cubs sent RHP Nick Burdi on a rehab assignment to Iowa Cubs. |
| 08/30/23 | Chicago Cubs sent RHP Nick Burdi on a rehab assignment to Iowa Cubs. |
| 08/29/23 | Chicago Cubs placed RHP Jose Cuas on the bereavement list. |
| 08/29/23 | Chicago Cubs recalled LHP Anthony Kay from Iowa Cubs. |
| 08/26/23 | Chicago Cubs placed RHP Michael Fulmer on the 15-day injured list retroactive to August 25, 2023. Right forearm strain. |
| 08/26/23 | Chicago Cubs selected the contract of LHP Jordan Wicks from Iowa Cubs. |
| 08/25/23 | Chicago Cubs sent RHP Edwin Uceta outright to Iowa Cubs. |
| 08/24/23 | Chicago Cubs recalled RHP Keegan Thompson from Iowa Cubs. |
| 08/24/23 | Chicago Cubs optioned RHP Michael Rucker to Iowa Cubs. |
| 08/20/23 | Chicago Cubs sent RHP Brad Boxberger on a rehab assignment to Iowa Cubs. |
| 08/20/23 | Chicago Cubs released C Tucker Barnhart. |
| 08/20/23 | Chicago Cubs sent RHP Brad Boxberger on a rehab assignment to Iowa Cubs. |
| 08/19/23 | Chicago Cubs designated C Tucker Barnhart for assignment. |
| 08/19/23 | Chicago Cubs recalled 2B Miles Mastrobuoni from Iowa Cubs. |
| 08/18/23 | Chicago Cubs claimed RHP Edwin Uceta off waivers from New York Mets. |
| 08/18/23 | Chicago Cubs optioned RHP Edwin Uceta to Iowa Cubs. |
| 08/17/23 | Chicago Cubs signed free agent LHP Richard Bleier to a minor league contract. |
| 08/15/23 | Chicago Cubs recalled RHP Michael Rucker from Iowa Cubs. |
| 08/15/23 | Chicago Cubs optioned RHP Caleb Kilian to Iowa Cubs. |
| 08/14/23 | Chicago Cubs sent RHP Brad Boxberger on a rehab assignment to ACL Cubs. |
| 08/13/23 | Chicago Cubs sent RHP Nick Burdi on a rehab assignment to Iowa Cubs. |
| 08/08/23 | Chicago Cubs sent RHP Nick Burdi on a rehab assignment to Iowa Cubs. |
| 08/08/23 | Chicago Cubs sent RHP Nick Burdi on a rehab assignment to ACL Cubs. |
| 08/08/23 | Seattle Mariners claimed RHP Ryan Jensen off waivers from Chicago Cubs. |
| 08/06/23 | Chicago Cubs optioned LHP Anthony Kay to Iowa Cubs. |
| 08/06/23 | Chicago Cubs recalled RHP Caleb Kilian from Iowa Cubs. |
| 08/02/23 | Chicago Cubs activated RHP Jose Cuas. |
| 08/02/23 | Chicago Cubs placed RHP Marcus Stroman on the 15-day injured list retroactive to August 1, 2023. Right hip inflammation. |
| 08/02/23 | Chicago Cubs released LF Trey Mancini. |
| 08/01/23 | Chicago Cubs designated LF Trey Mancini for assignment. |
| 08/01/23 | Chicago Cubs activated 3B Jeimer Candelario. |
| 08/01/23 | RHP Josh Roberson roster status changed by Chicago Cubs. |
| 08/01/23 | Chicago Cubs traded RHP Manuel Rodríguez, RHP Adrian Sampson and Future Considerations to Tampa Bay Rays for RHP Josh Roberson. International Signing Bonus Pool Space. |
| 08/01/23 | Chicago Cubs traded RHP Manuel Rodríguez, RHP Adrian Sampson and Future Considerations to Tampa Bay Rays for RHP Josh Roberson. International Signing Bonus Pool Space. |
| 08/01/23 | Chicago Cubs traded RHP Manuel Rodríguez, RHP Adrian Sampson and Future Considerations to Tampa Bay Rays for RHP Josh Roberson. International Signing Bonus Pool Space. |