OMAHA, Neb. – The cost to dine with investor Warren Buffett has apparently spiked in value, with one deep-pocketed bidder forking over nearly $3.5 million during a charity auction.

The annual auction for a private lunch with the Nebraska billionaire closed following a flurry of activity in the final hours Friday night. In the end, the highest bid was a record-breaking $3,456,789.

The auction benefits the Glide Foundation, which helps the homeless in San Francisco. Buffett has raised more than $11.5 million for the group in 13 past auctions. The event provides a significant portion of Glide’s roughly $17 million annual budget that pays for social services to the poor and homeless.

The organization said Friday’s winning bidder wished to remain anonymous. Glide’s founder, the Rev. Cecil Williams, said 10 people actively engaged in bidding.

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