If the numbers have been reported correctly, it looks like Sandoz/Momenta only has a 9% COGS number for Glatopia.
For the 1st 9 months, Novartis reported $140m in sales and so far Momenta has reported $63.9 mil in royalty. I believe Sandoz also retains 50% so that would put the net profit at $127.8 mil so far this year.