Anthropic, the artificial intelligence company behind the Claude models, is heading towards what could be one of the largest stock market listings in history, and the investors who backed it early are already counting extraordinary paper gains.
The company's IPO is expected this year at a valuation of "as much as $2 trillion," TechCrunch reported on Friday, October 23, citing Bloomberg. Its latest private valuation is $965 billion, set in a $65 billion funding round in May.
Based on that private valuation, Bloomberg estimated what some of Anthropic's backers are now worth, according to TechCrunch.
The winners so far
Spark Capital, the only venture firm known to hold a board seat at Anthropic, invested $75 million in the company's 2023 Series C at a valuation of $5 billion. Its stake is now worth about $7 billion, more than 90 times its investment.
Former Google chief executive Eric Schmidt invested in Anthropic's 2021 Series A, when the company was valued at $461 million. He owns about 1%, worth nearly $10 billion.
ICONIQ wrote a $6 billion cheque last year, when Anthropic was valued at $183 billion. That stake is now worth about $17 billion and could double at the IPO.
Menlo Ventures, which led the Series D and has invested more than $1 billion in total, holds a stake worth about $14 billion.
Sequoia first invested earlier this year at a $380 billion valuation, putting in $3 billion for about 1% of the company. Its stake has more than doubled in value.
Sound Ventures, the firm co-founded by actor Ashton Kutcher, invested $35 million in the 2023 Series C and later added about $400 million. Its stake is worth billions.
A rocket ride
Anthropic's valuation has risen at a pace rarely seen in corporate history. Founded in 2021 by former OpenAI researchers, including siblings Dario and Daniela Amodei, it was valued at less than half a billion dollars in its first institutional round. Within five years, its private valuation has approached $1 trillion.
That rise reflects the explosive growth of demand for AI models, particularly from businesses. Anthropic's Claude models have become widely used for coding, enterprise applications and AI agents, and the company has built a strong position among corporate customers and developers.
Large technology companies, including Amazon and Google, have invested billions of dollars in Anthropic, partly through commitments to supply computing capacity.
The IPO race
Anthropic filed confidential IPO paperwork in June 2026, as did OpenAI. CNBC has reported that Anthropic is seeking a valuation of $1.5 trillion to $2 trillion in its public debut, and speculation has grown that it could file a public registration statement soon.
OpenAI, by contrast, is finalising a private funding round of up to $30 billion at a $1.25 trillion valuation, according to reports this week, suggesting it is in less of a hurry to list.
A public listing would give Anthropic access to a broader pool of capital to fund its enormous spending on computing infrastructure, and would provide liquidity for early investors and employees.

Paper gains and real risks
The figures cited are paper gains based on private valuations. Actual returns will depend on the IPO price, how the shares trade afterwards and when investors sell. Lock-up periods typically prevent insiders from selling for several months after a listing.



