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Billionaire Profile
Gwendolyn Sontheim Meyer
Global Rank
#810

Gwendolyn Sontheim Meyer

CEO, Cargill
Rancho Santa Fe, California
Real-Time Net Worth
$5.35B
Estimated based on Cargill stock value as of September 10, 2026
0% (24h)
Age
64
Source
Cargill
Industry
food-beverage
Citizenship
United States

Biography

Gwendolyn Sontheim Meyer is an American billionaire heiress and equestrian. As the great-great-granddaughter of William Wallace Cargill, the founder of the renowned Cargill corporation, she inherited a substantial fortune. Her estimated net worth is $6.0 billion as of 2024. Meyer primarily operates in the food and beverage industry. She resides in Rancho Santa Fe, California, and is known for her passion for equestrian sports, particularly show jumping. Meyer has invested heavily in breeding, training, and competing with high-quality sport horses at her Coral Reef Ranch. She has also contributed significantly to philanthropic efforts.

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Data Updated
Sep 10, 2026
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Wealth Over Time

Net Worth History

YearNet Worth
2026$5.35B
2025$6.00B
2024$6.00B
2022$5.50B
2020$4.40B

In-Depth Profile

Early Life

Gwendolyn Sontheim Meyer was born in 1961/62. She is the great-great-granddaughter of William Wallace Cargill, who founded the Cargill corporation in 1865. Her mother was Marion MacMillan Pictet.

Rise to Success

Meyer's wealth stems from her inheritance of an estimated 8% stake in Cargill. Cargill is the largest privately held company in the United States. The company operates worldwide in grain trading, food processing, commodities, and risk management.

Key Business Strategies

While Meyer has not taken a direct corporate role, she focuses on her equestrian pursuits and philanthropy. She is involved in breeding, training, and competing in show jumping events at her ranch, Coral Reef Ranch, in Rancho Santa Fe, California.

Philanthropy

Meyer is involved in philanthropy, with contributions to various causes, including education, conservation, and animal welfare, often reflecting her personal interests and family heritage. She has contributed over $12 million to Democratic-leaning campaigns and organizations, including the 2024 presidential campaign of Vice President Kamala Harris and the Democratic Congressional Campaign Committee (DNCC).

Career Milestones

2011

Won Prix Credit Suisse

Won the Prix Credit Suisse at the Geneva International Horse Show.

Philanthropy & Social Impact

Political Donations

Democratic Party Campaigns and PACs

$12M+

Contributed over $12 million to Democratic-leaning campaigns and organizations.

Billionaires Connected to Gwendolyn Sontheim Meyer

Peers in Food-Beverage

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Richest in United States

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Adjacent Global Ranks

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Frequently Asked Questions

What is Gwendolyn Sontheim Meyer's net worth in 2026?
As of 2026, Gwendolyn Sontheim Meyer's estimated net worth is $5.349 billion, ranking #810 among the world's billionaires. The estimate is based on publicly available shareholding data and market prices, updated daily.
How did Gwendolyn Sontheim Meyer make their money?
Gwendolyn Sontheim Meyer's wealth primarily comes from Cargill, most notably through Cargill.
Where is Gwendolyn Sontheim Meyer from?
Gwendolyn Sontheim Meyer is from United States.
How old is Gwendolyn Sontheim Meyer?
Gwendolyn Sontheim Meyer is 64 years old.

Sources & References

  1. Gwendolyn Sontheim Meyer — Forbes profile — Forbes