Liberty Mutual Insurance Appoints Dennis Cook to Lead IronHealth

BOSTON (June 17, 2021) – Dennis Cook has been appointed President, IronHealth, Global Risk Solutions North America.

In his role, Dennis will drive the continued profitability and growth of an organization that provides specialty healthcare liability and medical stop loss solutions that meet the complex risk management needs of hospitals, healthcare providers, managed care organizations, life science companies, senior care facilities, and self-insured employer health plans. Liberty Mutual works with brokers to seamlessly provide a full range of primary and specialty solutions for healthcare companies across the US and Canada.

“Dennis has demonstrated success growing a profitable healthcare insurance business of scale,” said North America Specialty President Mathew Dolan. “He has the perfect blend of healthcare underwriting, product management and leadership skills to continue IronHealth’s growth as a leading provider of specialty solutions.”

Cook joined Liberty Mutual four years ago. Most recently, he served as IronHealth’s Chief Liability Officer, where he successfully led an operation with $220 million in gross written premiums. Prior to joining Liberty Mutual, Cook was at AIG.

In addition to Cook, Liberty Mutual has appointed Robert Hatcher as Chief Underwriting Officer, Stop Loss. Hatcher will report to Cook and lead Liberty Mutual’s medical stop loss offering.


About Liberty Mutual Insurance

At Liberty Mutual, we believe progress happens when people feel secure. By providing protection for the unexpected and delivering it with care, we help people embrace today and confidently pursue tomorrow.

In business since 1912, and headquartered in Boston, today we are the sixth largest global property and casualty insurer based on 2020 gross written premium. We also rank 71 on the Fortune 100 list of largest corporations in the U.S. based on 2020 revenue. As of December 31, 2020, we had $43.8 billion in annual consolidated revenue.

We employ over 45,000 people in 29 countries and economies around the world. We offer a wide range of insurance products and services, including personal automobile, homeowners, specialty lines, reinsurance, commercial multiple-peril, workers compensation, commercial automobile, general liability, surety, and commercial property. 

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