Cubs Roster & Staff
Transactions
| Date | Transaction |
| 09/29/23 | Chicago Cubs activated RHP Adbert Alzolay from the 15-day injured list. |
| 09/29/23 | Chicago Cubs optioned RHP Keegan Thompson to ACL Cubs. |
| 09/27/23 | Chicago Cubs activated 3B Jeimer Candelario from the 10-day injured list. |
| 09/27/23 | Chicago Cubs optioned 2B Jared Young to ACL Cubs. |
| 09/23/23 | Chicago Cubs placed RHP Brad Boxberger on the 15-day injured list retroactive to September 22, 2023. Right forearm strain. |
| 09/23/23 | Chicago Cubs recalled RHP Keegan Thompson from Iowa Cubs. |
| 09/19/23 | Chicago Cubs placed 2B Nick Madrigal on the 10-day injured list retroactive to September 17, 2023. Right hamstring strain. |
| 09/19/23 | Chicago Cubs recalled 2B Jared Young from Iowa Cubs. |
| 09/16/23 | Chicago Cubs placed RHP Michael Fulmer on the 15-day injured list. Right forearm strain. |
| 09/16/23 | Chicago Cubs recalled RHP Daniel Palencia from Iowa Cubs. |
| 09/15/23 | Chicago Cubs activated RHP Marcus Stroman from the 15-day injured list. |
| 09/15/23 | Chicago Cubs optioned RHP Daniel Palencia to Iowa Cubs. |
| 09/14/23 | New York Mets claimed LHP Anthony Kay off waivers from Chicago Cubs. |
| 09/13/23 | LHP Anthony Kay roster status changed by Chicago Cubs. |
| 09/12/23 | Chicago Cubs placed 3B Jeimer Candelario on the 10-day injured list. Low back strain. |
| 09/12/23 | Chicago Cubs recalled LF Alexander Canario from Iowa Cubs. |
| 09/11/23 | Chicago Cubs activated RHP Michael Fulmer from the 15-day injured list. |
| 09/11/23 | Chicago Cubs designated LHP Anthony Kay for assignment. |
| 09/11/23 | Chicago Cubs placed RHP Adbert Alzolay on the 15-day injured list retroactive to September 10, 2023. Right forearm strain. |
| 09/11/23 | Chicago Cubs optioned LF Alexander Canario to Iowa Cubs. |
| 09/11/23 | Chicago Cubs selected the contract of OF Pete Crow-Armstrong from Iowa Cubs. |
| 09/08/23 | Chicago Cubs activated RHP Brad Boxberger from the 60-day injured list. |
| 09/08/23 | Chicago Cubs optioned RHP Keegan Thompson to Iowa Cubs. |
| 09/08/23 | Chicago Cubs sent RHP Shane Greene outright to Iowa Cubs. |
| 09/06/23 | Chicago Cubs designated RHP Shane Greene for assignment. |
| 09/06/23 | Chicago Cubs selected the contract of LHP Luke Little from Iowa Cubs. |
| 09/03/23 | Chicago Cubs sent LHP Brandon Hughes on a rehab assignment to Iowa Cubs. |
| 09/03/23 | Chicago Cubs sent LHP Brandon Hughes on a rehab assignment to Iowa Cubs. |
| 09/01/23 | Chicago Cubs activated RHP Jose Cuas from the bereavement list. |
| 09/01/23 | Chicago Cubs recalled LF Alexander Canario from Iowa Cubs. |
| 09/01/23 | Chicago Cubs selected the contract of RHP Shane Greene from Iowa Cubs. |
| 09/01/23 | Chicago Cubs optioned LHP Anthony Kay to Iowa Cubs. |