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Anthropic co-founders plan $1.75 billion stock sale as filing reveals $41.5 million in legal fees

Anthropic's updated IPO prospectus shows its seven co-founders plan to sell $1.75 billion in stock ahead of an offering that could value the company at nearly $1.4 trillion, alongside an estimated $41.5 million in legal expenses.

Anthropic co-founder and CEO Dario Amodei wearing glasses, a dark suit jacket, and a tie.
Image: @MarioNawfal

Anthropic's seven co-founders are planning to sell a combined $1.75 billion of stock in the company's initial public offering expected next week, according to an updated S-1 prospectus reported by Bloomberg's Dylan Sloan. Each co-founder plans to sell an identical number of shares, cashing out roughly $250 million at the midpoint of the proposed price range while keeping the group in control of the company.[4][5][7]

Even after cashing out, each co-founder would retain an equity stake valued at around $18 billion, The Wall Street Journal reported.[2][9]

The amended filing also outlines significant costs for the landmark offering, which could value the artificial intelligence developer at almost $1.4 trillion. Anthropic expects to incur $41.5 million in legal fees and expenses, described by Bloomberg Law as potentially record-setting. According to the regulatory disclosure, those legal costs make up approximately 61% of Anthropic's $67.7 million in estimated offering expenses, excluding underwriting commissions. The company also projects $18.4 million for accounting services and $6.4 million in SEC registration fees.[1][6][8]

Anthropic plans to raise up to $90.4 billion through share sales and deals with major investors including Google, Nvidia, and AMD, according to a report citing Reuters. While the company's annualized revenue pace stands around $81 billion, it faces nearly $900 billion in future computing commitments, and its target valuation has settled below earlier investor discussions of $2 trillion.[3]

Key facts

  • Anthropic's seven co-founders plan to sell a combined $1.75 billion of stock in the company's IPO, expected next week.
  • Each co-founder is selling an identical number of shares worth approximately $250 million at the midpoint of the price range.
  • Each co-founder will retain an equity stake valued at around $18 billion after the offering.
  • The updated prospectus indicates the IPO could value Anthropic at nearly $1.4 trillion.
  • Anthropic expects to spend $41.5 million on legal fees, representing about 61% of its estimated $67.7 million in non-underwriting offering expenses.
  • Additional estimated offering expenses include $18.4 million for accounting fees and $6.4 million for SEC registration fees.
  • Anthropic plans to raise up to $90.4 billion through share sales and deals with partners such as Google, Nvidia, and AMD, according to a report citing Reuters.

Sources · 8 sources

  1. BL

    Bloomberg Law@BLawPost on X ·

    Anthropic’s upcoming initial public offering will generate a potentially record-setting $41.5 million in legal fees and expenses and could value the artificial intelligence company at almost $1.4 trillion, according to an amended investor prospectus. https://t.co/xgu1deWWZr

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  2. TW

    The Wall Street Journal@WSJPost on X ·

    Anthropic’s seven founders plan to cash out about $250 million apiece in the IPO—leaving them with stakes worth around $18 billion each. https://t.co/Frjka5jANd

    Open source
  3. MN

    Mario Nawfal@MarioNawfalPost on X ·

    🇺🇸 Anthropic is preparing a massive IPO that could value it at $1.4 trillion. The company behind Claude plans to raise up to $90.4 billion through a share sale and deals with big investors like Google, Nvidia and AMD. And its business is growing fast. At its current pace, Anthropic would bring in around $81 billion a year. But that growth isn't cheap. The company has nearly $900 billion in future computing commitments, raising concerns about how much all this AI expansion will cost. Investors once discussed a $2 trillion valuation, but expectations have cooled. Now Wall Street gets to decide just how much it's willing to bet on the AI boom. Source: Reuters / Writer: Daniyal

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  4. TE

    TechmemeArticle ·

    Updated S-1: Anthropic's seven co-founders will sell $1.75B of stock in next week's IPO, each offering shares worth ~$250M at the midpoint of its IPO range (Dylan Sloan/Bloomberg) Dylan Sloan / Bloomberg : Updated S-1: Anthropic's seven co-founders will sell $1.75B of stock in next week's IPO, each offering shares worth ~$250M at the midpoint of its IPO range — Anthropic PBC's seven co-founders will sell $1.75 billion of stock between them in next week's initial public offering, according to an updated prospectus released Tuesday.

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  5. TE

    Techmeme@TechmemePost on X ·

    Updated S-1: Anthropic's seven co-founders will sell $1.75B of stock in next week's IPO, each offering shares worth ~$250M at the midpoint of its IPO range (@dylansloan_ / Bloomberg) (Visit Techmeme dot com for the link and full context!)

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  6. WS

    Wall St Engine@wallstenginePost on X ·

    ANTHROPIC EXPECTS TO SPEND $41.5M ON LEGAL FEES FOR ITS IPO That's roughly 61% of its $67.7M in estimated offering expenses, excluding underwriting commissions. Other costs include $18.4M for accountants and $6.4M in SEC registration fees, according to its filing. https://t.co/NHFo4ItrCL

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  7. TE

    TechCrunch@TechCrunchPost on X ·

    Each of the seven co-founders plans to sell exactly the same number of shares in the IPO, which would bring each of them about $250 million in cash at the midpoint of the price range while leaving the group in control of the company. https://t.co/K2WBWxRuGA

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  8. BL

    Bloomberg Law@BLawPost on X ·

    Anthropic Generates $42 Million in Legal Fees for Record IPO https://t.co/Lbt3LgxJJf

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  9. WM

    WSJ Markets@WSJmarketsPost on X ·

    Anthropic’s seven founders plan to cash out about $250 million apiece in the IPO—leaving them with stakes worth around $18 billion each https://t.co/skCJrj5jGI

    Open source