UnitedHealth's $1.65 billion acquisition of MetraHealth Companies in the mid-1990s made the former Medicare administrator into the national insurance player we know today.
The deal gave them the infrastructure to manage health plans for large corporate employers.
It also gave UnitedHealth market power to negotiate with healthcare providers and maintain relationships with major corporate clients like G.M., DuPont, and Sears because of MetraHealth's specialized expertise in working with large accounts.
UnitedHealth purchased PacifiCare Health Systems for an $8.5 billion acquisition in 2005.
Since the 1960s, the West Coast HMO has managed healthcare costs and patient care.
The merger expanded UnitedHealth's national presence while leveraging PacifiCare's expertise in managed care.
The deal also triggered industry-wide adjustments as stakeholders had to adapt to the combined entity's enhanced market influence.
UnitedHealth Group's landmark $4.9 billion acquisition of Amil Participações (Brazil's largest health benefits provider) in 2012—put the Minnesota-based company on the global map helping them expand into international markets.
The purchase gave them access to 200 million Brazilian consumers and a trusted brand name.
They were able to provide the Latin American company with American-style healthcare tech in analytics and partnerships.
The $4.3 billion acquisition of DaVita Medical Group by Optum in 2019, expanded UnitedHealth's healthcare services division, by adding a major physician network and outpatient facilities to its portfolio of pharmacy benefits, analytics, and care delivery assets.
The deal helped the health giant to vertically integrate more direct patient care touch points under one umbrella—controlling healthcare costs and quality.
It also gave them deeper visibility into the medical ecosystem.
UnitedHealth's Optum division made waves in 2022 with its $8 billion acquisition of Change Healthcare.
The firm worked on data analytics and possessed vast amounts of U.S. medical claims data, providing healthcare information infrastructure.
There were antitrust concerns about Optum gaining access to competitors' data.
However, the deal was approved with some divestments.
Optum's analytics capabilities and control over healthcare data have never been better.