Leonid Radvinsky, the majority owner of the adult content platform OnlyFans, died on March 20 at age 43 following a battle with cancer. OnlyFans announced his death today, stating, "We are deeply saddened to announce the death of Leo Radvinsky. Leo passed away peacefully after a long battle with cancer." His family requested privacy during this time.

Born on May 30, 1982, in Odesa, Ukraine, to a Jewish family, Radvinsky emigrated to Chicago as a child. He earned a bachelor's degree in economics from Northwestern University in 2002. Radvinsky entered the online adult industry early, co-founding Cybertania Inc. at age 17 in 1999, which operated websites promising access to pornographic content through referral clicks. In 2004, he launched MyFreeCams, a live adult webcam site.

Radvinsky acquired a 75% stake in OnlyFans parent company Fenix International Ltd. in 2018 from founders Tim and Guy Stokely. Under his ownership, the platform, launched in 2016, exploded in popularity during the COVID-19 pandemic, growing from 13 million users in 2019 to over 300 million. OnlyFans generated $1.4 billion in revenue in 2024 as users spent $7.2 billion on subscriptions and content, with the company taking a 20% cut. Radvinsky received $701 million in dividends in 2024 and $1.8 billion total from 2021 through early 2025.

Forbes estimated his net worth at $4.7 billion at the time of his death, placing him among the world's wealthiest individuals. In recent months, he had been in discussions to sell a majority stake in OnlyFans, with valuations reported between $5.5 billion and $8 billion. He transferred his ownership to the LR Fenix Trust in 2024.

Radvinsky married attorney Katie Chudnovsky in 2008; she serves as general counsel for a technology firm. Together, they supported philanthropy, including a $23 million cancer research grant program in 2024, $5 million for Ukraine relief in 2022, and donations to animal welfare and medical charities. He expressed interest in The Giving Pledge.

The platform faced scrutiny over content moderation and exploitation allegations, including a 2024 Reuters report on women claiming sexual enslavement. In 2021, OnlyFans briefly planned to ban explicit content amid banking pressures before reversing the decision. Radvinsky rarely gave interviews and maintained a low public profile.