Jacqueline Mars

Jacqueline Mars is among the world's most closely watched billionaires from UNITED STATES, with an estimated fortune of $45.5B. The bulk of Jacqueline Mars's wealth comes from Candy, pet food, closely tied to Candy. Jacqueline Mars is an American heiress and investor, known for her significant stake in Mars, Incorporated, a global leader in the confectionery and pet food industries. Born in 1939, Mars is the granddaughter of Frank C. Mars, the founder of the company. She graduated from Bryn Mawr College with a degree in anthropology. Her career at Mars, Inc. spanned nearly two decades, where she held roles including Food Product Group President. As of 2024, her net worth is estimated at $49.1 billion, making her one of the wealthiest individuals globally. Beyond her business achievements, Mars is known for her philanthropy, particularly in the areas of equestrian sports, conservation, and the arts. Key career milestones include Joined Mars, Inc. (1982); Retired from Daily Responsibilities (2001); Left the Board of Directors (2016). This profile documents verified holdings, career milestones, and multi-year net worth history drawn from Forbes rankings, company filings where available, and our editorial methodology. Readers use it to understand how public markets, private company stakes, and major business bets shape one of the largest personal fortunes on record. Wealth estimates move with stock prices, funding rounds, and disclosed transactions—figures on this page are research estimates, not cash balances. We publish year-by-year net worth history when verified data exists, link to primary sources, and update profiles when Forbes Real-Time Billionaires or major filings change the picture materially. For investors and researchers, the most useful reading pairs the headline number with ownership structure, geography, sector exposure, and the multi-year history chart on this page—especially during volatile markets when single-day moves can shift rankings without any operational change at the underlying companies.