OnlyFans owner Leonid Radvinsky dies at 43 following secret cancer battle

Leonid Radvinsky, the billionaire owner of the subscription platform OnlyFans, has died at the age of 43 after privately battling cancer, the company confirmed.

In a statement, the company said it was “deeply saddened” by his passing and noted that he died peacefully following a long fight with the disease. The statement also asked that his family be given privacy during this difficult time.

Radvinsky, a Ukrainian-American entrepreneur, bought Fenix International—the parent company that operates OnlyFans—in 2018. After the purchase, he served as both a director and the majority shareholder of the company.

Despite his wealth and influence, Radvinsky was known for maintaining a very low public profile. His illness had not been widely known.

He and his wife, Katie Chudnovsky, were also involved in supporting medical research. In 2024, the couple helped back a $23 million cancer research grant program through a gastrointestinal research foundation, according to reporting from The Wall Street Journal. Chudnovsky, who had served on the foundation’s board for more than ten years, spoke at a fundraising gala connected to the initiative and hinted at her husband’s health struggles.

During the event, she credited scientific research for advancing cancer treatment and suggested that those developments had made a personal impact on their lives.

Radvinsky was born in Odesa, Ukraine, to Jewish parents before moving to the United States, where he grew up near Chicago. He later graduated from Northwestern University with a degree in economics and went on to launch a venture capital fund called Leo that focused on technology investments.

By March 10, Forbes estimated his fortune at about $4.7 billion, placing him among the world’s wealthiest individuals.

Under his ownership, OnlyFans grew into a major force in the online adult content industry. Over a five-year period, Radvinsky received close to $1.3 billion in dividends from the platform.

The service was originally launched in 2016 by British entrepreneurs Guy and Tim Stokely. Two years later, Radvinsky purchased their company, Fenix International, though the price of the deal was never publicly disclosed.

For the past several years he had lived in Sunny Isles Beach, an upscale coastal community in Miami-Dade County, Florida. After acquiring the company, he became its director and majority shareholder, with his ownership stake reportedly placed in a trust.

More recently, he had been attempting to sell his share of OnlyFans for roughly $8 billion, but reportedly struggled to find a bank willing to manage the transaction.

Fenix International, which is based in London, had also been in negotiations last year with a group led by the Los Angeles investment bank and advisory firm Forest Road about a possible acquisition. Those discussions ultimately ended without a deal, and the reasons for the collapse were not made public.

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