I know you're primarily interested in the US, but others reading the question title may be interested in other countries.  For the UK, see

- [Wiley/Springer/T&F/Sage/OUP/CUP](http://figshare.com/articles/Journal_subscription_costs_FOIs_to_UK_universities/1186832) (collected by Stuart Lawson and Ben Meghreblian)
- [Elsevier](http://gowers.wordpress.com/2014/04/24/elsevier-journals-some-facts/) (collected by Tim Gowers)

For some information about New Zealand universities, see [Mark Wilson's blog post](http://mcw.blogs.auckland.ac.nz/2017/12/03/big-deal-journal-bundles-price-information-from-new-zealand/) and [spreadsheet](https://figshare.com/articles/Spreadsheet_of_journal_subscription_costs/5656069/1).