MassMutual today announced it has appointed David Long, Former Chairman and Chief Executive Officer of Liberty Mutual Insurance, to the company’s Board of Directors.

“David’s exceptional track record of leadership and driving global growth, as well as his deep understanding of what a mutual company is all about – delivering long-term value to policyowners – makes him a welcome addition to our Board of Directors,” said Roger Crandall, Chairman, President and CEO, MassMutual. “We look forward to benefiting from his broad experience, insights, and contributions.”

Long began his career at Liberty Mutual Insurance in 1985, being appointed President in 2010, Chief Executive Officer in 2011 and Chairman in 2013. Under his leadership as CEO, Liberty Mutual became the sixth-largest global property and casualty (P&C) insurer as Long achieved strong financial growth and stability and strategically positioned the company with major acquisitions. Long also oversaw hundreds of millions of dollars in total giving to benefit the community and the company was recognized with numerous philanthropic and workplace culture awards. In his role as Chairman, Long led the company’s board of directors, overseeing corporate activities and evaluating performance on behalf of Liberty Mutual stakeholders. He retired as Chief Executive Officer in January 2023 and as Chairman and Director in April 2025.

“I’m grateful for the opportunity to join MassMutual’s Board of Directors and contribute insights and perspective from my four decades dedicated to achieving progress amidst constant change in the insurance industry,” said Long. “I look forward to supporting the company’s enduring commitment to its purpose of helping people secure their future and protect the ones they love.”

Long serves on the board of trustees for Massachusetts General Hospital (MGH) and chairs the annual Aspire fundraiser at MGH, which provides social services and development opportunities for children and young adults on the autism spectrum. He also serves as a board member of Eversource Energy and Ford’s Theatre in Washington, D.C.

Long earned a Bachelor of Arts in Mathematics from Hartwick College and a Master of Science in Finance from Boston College. He has been awarded honorary doctorate degrees from Hartwick College, Bentley University and Merrimack College.

About MassMutual (Massachusetts Mutual Life Insurance Company)

MassMutual is a leading mutual life insurance company that is run for the benefit of its members and participating policyowners. Founded in 1851, the company has been continually guided by one consistent purpose: we help people secure their future and protect the ones they love. With a focus on delivering long-term value, MassMutual offers a wide range of protection, accumulation, wealth management and retirement products and services. For more information, visit www.massmutual.com.

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