San Francisco's leading boutique pharma and healthcare consultancy, Quorum Consulting, will be acquired by Navigant for an undisclosed amount. Navigant is traded on the New York Stock Exchange with a market cap of about $800M. 2016 revenue was about $1B. Press release here.
In August 2015, Avalere, another life sciences/pharmacoeconomics consultancy was acquired by Inovalon for $140M.
Truven health data analytics was acquired by IBM in February 2016 for $2.6B.
In November 2017, Optum completed its acquisition of Advisory Board. The deal was valued at $1.3B.
In other news, longstanding Silicon Valley pharmacoeconomics consultancy Cedar Associates has apparently taken down its website. John Hornberger MD is now listed as Senior Fellow at Genomic Health on LinkedIn as of October 2017.