How much is Jacqueline Mars Worth? Jacqueline Mars Net Worth in 2026

By the Alux Research Team. How we estimate net worth

Jacqueline Mars’s net worth is estimated at $49 billion as of November 2026. She owns about a third of Mars, the family company behind M&M’s, Pringles and a large chunk of the world’s pet care. Her biggest money event of the past year was a purchase she did not make herself: Mars took on about $32 billion of debt to buy Kellanova, in new bonds plus Kellanova notes it assumed, and roughly a third of that debt sits behind her stake.

Net worth	$49 billion (our estimate, range $40 billion to $60 billion)
Born	October 10, 1939
Age	87
Country	United States
Known for	Granddaughter of Mars co-founder Franklin Mars; one of the two largest owners of Mars
Main income sources	About one third of Mars, Inc.

How much is Jacqueline Mars worth in 2026?

Our estimate is $49 billion, and it is built on a private company that publishes no profits and no share register. Mars does publish sales, and it did one very public deal: the Kellanova purchase, which gives a real price for a business of this kind. We value all of Mars at that price, take off the deal debt, and credit her with a third. A different multiple would move the answer by billions, so read it as a range.

Pricing a candy company nobody can buy

Source	Our estimate	What it rests on
One third of Mars, valued at the Kellanova price	$59.8 billion	Our calculation: Mars paid $35.9 billion including debt for Kellanova, a business with more than $13 billion in 2023 sales, about 2.76 times sales. The same multiple on combined sales above $65 billion values Mars at about $179 billion before debt. One third is $59.8 billion.
One third of the Kellanova debt	minus $10.7 billion	$26 billion of bonds, a $1 billion private placement and $5.1 billion of Kellanova notes Mars took on add up to $32.1 billion. A third is $10.7 billion. Other borrowing is not public, so this row may run low.
Assets outside Mars	$300 million	Our assumption for her organic farm near The Plains, Virginia, art and cash. None of it has a public price.
Total	$49 billion	$49.4 billion before rounding.

A third of a $65 billion business

Mars and Kellanova together had 2025 net sales above $65 billion, according to a report marking the company’s 115th year, which also counted about 170,000 employees across more than 3,600 sites. A 2026 ranking of food makers put Mars at No. 5 on the same $65 billion. Her father was Forrest Mars Sr.; her grandfather Franklin Mars co-founded the company. She and her brother John each own about a third, with most of the rest held by the four daughters of their brother Forrest Jr., according to published ownership estimates.

By our calculation, her third of the sales line is about $21.7 billion a year. That is roughly what a large listed food company sells in total, sitting inside one person’s slice of a private one.

The Kellanova bill

Mars closed the Kellanova deal on December 11, 2025, Vending Market Watch reported, building a snacking business with about $36 billion in yearly revenue. The price, set in August 2024, was $83.50 a share and $35.9 billion including debt, the announcement said. To pay for it, Mars sold $26 billion of bonds in eight tranches in March 2025, plus a $1 billion private placement, and took over $5.1 billion of Kellanova notes, its law firm said. Those borrowings come to $32.1 billion. Her third, about $10.7 billion, is the only negative line in our ledger, and the reason it matters: the Kellanova price is what lifts our value of Mars, and the debt is what paid for it.

From product president to the foundation

She studied anthropology at Bryn Mawr, graduating in 1961, and joined Mars in 1982 as president of its food product group, per her biography. Most of her time went to the Mars Foundation, the company-backed charity, and she retired in 2001. She lives near The Plains, Virginia, on a working organic farm that a land trust protects permanently.

In March 2026 she gave $10 million to Bryn Mawr for undergraduate scholarships. By our calculation that is about 0.02% of our estimate, the equivalent of $20 for someone worth $100,000.

Why other estimates disagree

Nobody outside the family knows what Mars earns, so public estimates pick their own multiple. Some appear to value Mars without the Kellanova debt, and some use a stake a little over or under a third.

What would move the figure

Mars paying down the $32.1 billion in deal debt would lift her slice by up to $10.7 billion. Any sale of a family stake, or a disclosed profit figure, would replace our multiple with a real price.

Jacqueline Mars net worth FAQ

What is Jacqueline Mars’s net worth?

About $49 billion as of November 2026 by our estimate, almost all of it her roughly one third of Mars, Inc. Our range is $40 billion to $60 billion.

How much of Mars does Jacqueline Mars own?

About a third, the same as her brother John. Most of the remaining third belongs to the four daughters of their brother Forrest Mars Jr., according to ownership estimates.

How much did the Kellanova deal add to Jacqueline Mars’s wealth?

By our math it raised the value we put on Mars, since Mars paid about 2.76 times sales for Kellanova, but it also left her stake carrying about $10.7 billion of the $32.1 billion borrowed.

What did Jacqueline Mars do at Mars?

She joined in 1982 as president of the food product group, spent most of her time at the Mars Foundation and retired in 2001.

How old is Jacqueline Mars?

87. She was born on October 10, 1939, and graduated from Bryn Mawr College in 1961.

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How we estimate net worth

Our estimates are based on public reporting, company valuations, and deal and earnings figures all compiled in an internal valuation model. They are approximate, and figures change over time as new information emerges.

Last updated: November 2026.