Indicate when grades have been posted at end of quarter

[tektaxi]

Right now on Aspen, it shows when a teacher has posted the grades for that class in the recent activity section. But on Aspine, there is no indication of when a class grade has been finalized, or "posted". I was thinking that we could indicate when grades have been posted for a given class in the 'grades' tab as shown in my mockup below.
What are everyone's thoughts?

[jshaw-7]

rather than the mockup shown, this would be better under the new recent activity table, similar to how aspen shows it