Sam Bankman-Fried

The half-billion-dollar check that made him an AI investor

Long before his name became shorthand for crypto fraud, Sam Bankman-Fried was one of the biggest early backers of a company that would become a central player in the AI race. In October 2021, as FTX was flying high, his operation put about $500 million into Anthropic through a modified SAFE, a bet that later converted into 44,539,240 Series B Preferred shares at $11.2261 a share, held through the FTX/Alameda-affiliated vehicle Clifton Bay. (Business Insider)

At the Series B close on April 30, 2022, that worked out to a 13.56% stake in Anthropic, court records showed. (Business Insider) What the money did not buy was influence: Bankman-Fried received no voting shares and no board seat, and Dario Amodei would later say the new investor had made the Anthropic team uneasy from the start, according to reporting by SilentRoom Journal. (SilentRoom Journal)

The stake turned out to be one of the most valuable assets left in the wreckage. Diluted to 7.84% by January 2024, the holding was sold by the FTX bankruptcy estate in two 2024 tranches: $884 million in March to about two dozen buyers, the largest being ATIC Third Investment Company, an arm of Abu Dhabi’s Mubadala, followed by a second tranche that brought total estate proceeds to roughly $1.3 billion. (Business Insider)

Separate Anthropic holdings tied to his circle met a different fate. Shares once held by Caroline Ellison ($10 million) and Nishad Singh ($40 million) were seized by the federal government in the SBF criminal case and sold by the U.S. Marshals to existing Anthropic investors; how victims of FTX’s collapse are compensated through the Department of Justice’s remission process was still unresolved at the time of reporting, though creditors of the FTX estate were projected to be repaid in full with interest. (Business Insider)

From trader to billionaire

Bankman-Fried was born March 6, 1992, in Stanford, California, where his parents, Joseph Bankman and Barbara Fried, taught tax law at Stanford. He graduated from the Massachusetts Institute of Technology with a bachelor’s degree in physics in 2014 and became a prominent supporter of effective altruism, the movement devoted to giving away money as efficiently as possible. (Encyclopaedia Britannica)

After MIT he worked as a trader at Jane Street, a quantitative trading firm, then spent a short period at the Centre for Effective Altruism before co-founding the trading firm Alameda Research in 2017. Two years later he founded the crypto exchange FTX Trading Ltd., which grew into the second-largest exchange of its kind. (Encyclopaedia Britannica)

His wealth and fame were inseparable from his image. The press loved the contrast between his fortune — estimated at $26.5 billion at its peak — and his studied informality: curly hair, T-shirts, a reluctance to wear shoes. He also became a political player, donating to Joe Biden’s 2020 presidential campaign and ranking as the second-largest individual donor to Democratic candidates in the 2022 midterm elections. He testified before Congress in December 2021 and again in February 2022. (Encyclopaedia Britannica)

The collapse and the case

The unraveling began on November 2, 2022, when a digital-assets news outlet published a leaked FTX balance sheet showing heavy exposure to the exchange’s own token, FTT. The token’s value collapsed, Binance agreed to buy FTX and then walked away, and a November 11 media report said customer funds were missing. FTX filed for bankruptcy, and Bankman-Fried resigned. By December 2022, his estimated fortune had fallen from $26.5 billion to effectively zero, and he was arrested in the Bahamas on December 12. (Encyclopaedia Britannica)

The charges were severe. The Securities and Exchange Commission charged him on December 13, 2022, alleging a scheme dating to at least May 2019 in which FTX had raised more than $1.8 billion — about $1.1 billion from roughly 90 U.S. investors — while Alameda drew on an effectively unlimited line of credit, with customer money diverted into venture investments, real estate, and political donations. The SEC also sought to bar him from serving as an officer or director of a public company. (U.S. Securities and Exchange Commission)

At trial, which ran through October 2023, a number of his top lieutenants had already pleaded guilty and testified against him. In November 2023 a jury convicted him on seven counts: two of wire fraud, two of conspiracy to commit wire fraud, and conspiracy counts covering securities fraud, commodities fraud, and money laundering. (Encyclopaedia Britannica)

On March 28, 2024, Judge Lewis A. Kaplan sentenced him to 25 years in prison, three years of supervised release, and an $11 billion forfeiture. Prosecutors had shown he misappropriated billions of dollars of customer deposits, defrauded FTX equity investors of more than $1.7 billion and Alameda lenders of more than $1.3 billion, directed alterations to FTX’s code that gave Alameda effectively unlimited withdrawals, and made false statements to banks. (U.S. Department of Justice)

Bankman-Fried’s legal fight did not end there. In April 2026, Judge Kaplan rejected his pro se request for a new trial; the U.S. Court of Appeals for the Second Circuit then upheld the conviction and sentence on June 12, 2026. That September he petitioned the U.S. Supreme Court to overturn the conviction and the $11 billion forfeiture, arguing that the trial court mishandled evidence about customer losses and that the forfeiture violated the Eighth Amendment’s ban on excessive fines. (Crypto Times)

What this profile does not claim

This profile does not settle his date of birth: Britannica says March 6, 1992, while Wikipedia gives March 5. It does not assert the terms of his bail, an extradition date, or the names of cooperating witnesses, none of which were verified in a source read in full for this profile. The “no voting shares, no board seat” detail comes from a single trade-publication report and is attributed rather than stated as settled fact, and the 2026 appellate developments rest on crypto-press reporting attributed as such.