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Anthropic IPO to Drive Blockbuster Gains for Iconiq, Spark, GIC

Reported by Bloomberg
Oct 22, 2026· 3 min read
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Key Takeaways
  • • Iconiq Capital, which has invested more than $6 billion in Anthropic, holds a stake worth roughly $17 billion at Anthropic's most recent $965 billion private market valuation, according to people familiar with the matter; the stake could double if the IPO values the company near $2 trillion.
  • • Spark Capital, the only venture firm known to hold a board seat at Anthropic, invested $75 million in 2023 and now holds a stake reportedly worth $7 billion.
  • • Sequoia Capital put $3 billion into Anthropic starting this year, giving it roughly a 1% stake; GIC has invested more than $4.5 billion and also owns about 1%.
  • • Anthropic is expected to publicly file IPO paperwork in the coming days, a listing that could make its seven billionaire co-founders and thousands of employees significant wealth beneficiaries.
  • • Anthropic, Sequoia, Iconiq, Sound Ventures and GIC declined to comment; Spark did not respond to a request for comment.
Summary
Anthropic's imminent Wall Street debut is set to generate multibillion-dollar gains for a group of venture capital firms, sovereign wealth funds, technology companies and individual investors that backed the Claude chatbot maker since its founding in 2021, according to Bloomberg. Iconiq made its first investment in Anthropic in 2025, when the AI developer was valued at $183 billion. The firm's later-stage investment, its largest deal to date, has已 more than $6 billion invested and a stake worth approximately $17 billion based on the company's most recent $965 billion private market valuation, according to people familiar with the matter. Iconiq's position could double if Anthropic completes its offering at a valuation as high as $2 trillion, as some expect.

Spark Capital, the only venture firm known to have a board seat at Anthropic, invested $75 million in 2023, its largest check ever, and now holds a stake worth about $7 billion at the current valuation, one person said. Sound Ventures, a firm started by talent manager Guy Oseary and actor Ashton Kutcher, invested $35 million in the same round at a $5 billion valuation and has since committed $400 million across later financings. The firm is now run by Oseary and managing partner Effie Epstein; Kutcher stepped down earlier this year.

Sequoia Capital, which made early bets on OpenAI, first invested in Anthropic only at the start of this year. Its $3 billion commitment has given it a roughly 1% stake, according to a person familiar with the matter. Singaporean sovereign wealth fund GIC also owns about 1% after investing more than $4.5 billion, beginning with a first investment last year. In August, Anthropic formed a strategic partnership with GIC and Macquarie Asset Management to build data centers.

Anthropic is expected to publicly file IPO paperwork in the coming days. The offering could make its seven billionaire co-founders and thousands of employees millionaires, and the windfall is likely to reverberate through the tech and venture ecosystem, supporting future AI investment at a time of heightened bubble concerns. Anthropic has, like OpenAI, drawn capital from many sources to fund chips, data centers and talent. Suppliers Alphabet's Google, Amazon.com and Nvidia have invested billions, deals that drew concerns about circular financing but are also set to generate substantial returns. Early angel backers included former Google CEO Eric Schmidt, who owns around a 1% stake according to Bloomberg News, and FTX co-founder Sam Bankman-Fried.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Bloomberg Anthropic IPO to Drive Blockbuster Gains for Iconiq, Spark, GIC