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Kenneth C. Griffin
Paul Elledge, CC BY-SA 4.0, via Wikimedia Commons

billionaireentrepreneurTop tier

Kenneth C. Griffin

Entrepreneur · born October 15, 1968

$22.7Bolder estimate, as of 2021 · Bloomberg

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About

Kenneth Cordele Griffin is an American hedge fund manager, entrepreneur and investor. He is the founder, chief executive officer, co-chief investment officer, and 80% owner of Citadel LLC, a multinational hedge fund.

Adapted from Wikipedia (CC BY-SA 4.0).

Reported wealth

Each figure is a dated estimate from the publisher shown; wealth changes, and nothing here is live.

As ofEstimateSource
2021$22.7BBloomberg · current

Sources

Every fact on this page traces to one of these.

Sources (3)

Also born on October 15

Kenneth's most notable birthday twins

billionaire

John Franklyn Mars

Entrepreneur

1935 · United States

$23.9Bolder estimate, as of 2019 · Forbes

John Franklyn Mars is an American businessman and heir. He is the chairman of Mars, Inc. As of May 2025, Bloomberg Billionaires Index estimated his net worth at US$44.6 billion, ranking him the 33rd-richest person in the world.

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Sources (3)
Mira Nair
actor

Mira Nair

Actor

1957 · India

Mira Nair is an Indian American filmmaker. She has received two prizes from the Cannes Film Festival and four from the Venice Film Festival, as well as nominations for an Academy Award, two BAFTA Awards, a Golden Globe, and two César Awards.

Bollywood Hungama, CC BY 3.0, via Wikimedia Commons

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Sources (2)
Friedrich Nietzsche
musician

Friedrich Nietzsche

Musician

1844–1900 · Kingdom of Prussia

Friedrich Wilhelm Nietzsche was a German philosopher and writer who started his career as a classical philologist and turned to philosophy early in his academic career. In 1869, at age 24, he was appointed Professor of Classical Philology at the University of Basel.

Friedrich Hermann Hartmann, Public domain, via Wikimedia Commons

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Penny Marshall
actor

Penny Marshall

Actor

1943–2018 · United States

Carole Penny Marshall was an American actress, film director, and producer.

ABC, Public domain, via Wikimedia Commons

Sources (2)