An American executive who played a prominent role in the heyday of Bermuda’s reinsurance industry has died.David Sinnott, who lived in Bermuda from 1993 to 2011, was 58.Mr Sinnott worked at reinsurers Tempest Reinsurance, PartnerRe, General Re and the investment bank Morgan Stanley, before joining the Bermuda office of Montpelier Re Holdings Ltd in 2002.Montpelier promoted him to chief United States treaty underwriter and executive vice-president in 2004.Mr Sinnott, who was originally from the seaside town of Duxbury in Massachusetts, also lived in Wellesley in Greater Boston.He attended Bowdoin College in Maine, where he was president of the Theta Delta Chi fraternity, and graduated in 1983 with a bachelor of arts in economics.He also held a master’s degree in business administration from the Wharton School of the University of Pennsylvania, and was a chartered financial analyst.Mr Sinnott joined General Re in 1983 and moved to Morgan Stanley in 1987.He met his wife, Francesca, while in New York and the couple married in 1990.As Bermuda’s reinsurance industry surged in the early 1990s, General Re formed Tempest, a property catastrophe reinsurer, in 1993.Mr Sinnott worked there for three years as a senior underwriter and second vice-president before he joined Partner Re in 1996 and became vice-president of risk management and underwriting.He spent nearly ten years at Montpelier Re, one of several reinsurers formed in Bermuda in the wake of the September 11, 2001 terrorist attacks in the US.He was a keen sportsman and enjoyed sailing, tennis and golf, and was a member of the Mid Ocean Club and the Coral Beach Club.The family returned to the US in 2011.Mr Sinnott worked as an independent consultant for reinsurance and insurance firms and in 2015 he cofounded insurance underwriting firm Climassure Inc.Mr Sinnott died on December 12 in Brigham and Women’s Hospital in Boston after a heart attack.A celebration of his life is planned for next summer at the Bowdoin College Chapel.