Most popular market deals of 2016

A rumored sale of Aon P.L.C.'s benefits outsourcing unit and the launch of Willis Towers Watson P.L.C. were among the most popular deals reported by Business Insurance this year.

1. Aon’s benefits outsourcing unit for sale for $5 billion: Report


2. Willis Towers Watson up and running after $18B merger


3. OptumRx acquires workers comp specialist PBM Helios


4. AIG sells majority stake in managing general agent


5. Insurance broker Alliant buys 'fantastic platform,' plans expansion


6. UnitedHealth purchase of Helios will tap workers comp growth areas


7. Hartford completes acquisition of specialty insurer


8. AIG buys into wearable technology to mitigate risk, boost worker safety


9. Hub expands West Coast operations with two acquisitions


10. Fairfax Financial to buy Allied World for $4.9 billion