Who Owns Sun Life?

Matthew Hamilton Gault, an Irish immigrant who settled in Montreal in 1842, founded The Sun Insurance Company of Montreal in 1865, with operations beginning in 1871. The company focused on life insurance and expanded internationally with unusual speed for the era. By the end of the nineteenth century it sold policies across Central and South America, the United States, Britain, the West Indies, Japan, China, the Philippines, and India.

The company survived two world wars and the 1918 influenza pandemic, which generated enormous claim volumes. It paid death claims arising from the Titanic sinking in 1912. Through the twentieth century Sun Life built one of the largest international footprints of any insurer, though it withdrew from some markets during wartime expropriations and the Chinese revolution.

In 1962 the company converted to mutual ownership, held by its policyholders rather than shareholders. It demutualized in March 2000, with Sun Life Financial Inc. listing on three exchanges simultaneously in one of the largest financial demutualizations ever completed in Canada. The capital raised funded an acquisition-led expansion.

The modern asset management push began in 1982 with the purchase of Boston-based MFS Investment Management, founder of the first U.S. open-end mutual fund. Later deals added SLC Management's fixed income and real assets platform, BentallGreenOak in real estate, and a majority stake in alternatives manager Crescent Capital. The company moved its global headquarters to One York Street in Toronto in 2017.

Fiscal 2025 marked the company's 160th anniversary with record results: underlying net income of C$4.2 billion, reported net income of C$3.47 billion, and underlying ROE of 18.2 percent. Assets under management reached C$1.60 trillion, and Corporate Knights named Sun Life the world's most sustainable insurance company in 2025.