This how-to will guide you through finding the owners of a Teams group in Microsoft Teams using CoreView.
- Under “Reports”, select “Teams”, then “Teams groups”.

- Search for the Teams group you want to know the owner of and click on “Open card in a new tab”.

- Click on the “Owners” tab to view the list of owners.

Teams Members report
CoreView also has a special report called “Teams members”.
In this report, you can filter by user to view all Teams groups they own or are a member of. You can use this to update a user’s Teams memberships based on another user.