(AP) — The Nobel Peace Prize auctioned off by Russian journalist Dmitry Muratov to raise money for Ukrainian child refugees sold Monday night for $103.5 million, shattering the old record for a Nobel.

A spokesperson for Heritage Auctions, which handled the sale, could not confirm the identity of the buyer but said the winning bid was made by proxy.

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Previously, the most ever paid for a Nobel Prize medal was $4.76 million in 2014.

Muratov was awarded the gold medal in October 2021.

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He helped found the independent Russian newspaper Novaya Gazeta and was the publication’s editor-in-chief when it shut down in March amid the Kremlin’s clampdown on journalists and public dissent in the wake of Russia’s invasion of Ukraine.