5 Biggest Health Insurance Companies in the US

4. Chubb Limited (NYSE:CB)

Market Capitalization: $78.58 billion

Chubb Limited (NYSE:CB) is a Switzerland-based insurance and reinsurance company that operates worldwide including the United States. With a market cap of $78.58 at the time of writing, it is the fourth-largest health insurance company in the United States. In the first quarter of 2023, 45 hedge funds held Chubb Limited (NYSE:CB)’s shares. Viking Global was the hedge fund with the most prominent stake in the company in the first quarter with 3.466 million shares worth $673.17 million.

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