Team & Enterprise Admins have the option to view progress of their team in the dashboard. Here is how articles are represented there.
Unlike with books or videos, there is no part-way completion for article reads for the team, it's either 100% or not at all. We also suggest your team to mark all articles read as manually marked for completion in order for the system to track accurately.
For this reason, take article reads with a grain of salt since (unlike our video or book engagement tracking) this can have a manual work around OR can be completely forgotten to mark as read.