Avista Capital Partners-backed United BioSource, a provider of pharmaceutical support services, agreed to acquire MarketShare Movers, a data-driven prescription drug benefit and affordability company. Financial terms were not disclosed. "Using MSM's consultative approach and proprietary analytics, UBC will now partner with clients to design and implement advanced and integrated patient co-pay benefit programs. This allows our clients to leverage our analysis and track the ongoing, multi-tiered impact of each benefit design and gross to net," Kevin Kane, MarketShare Movers Founder.