Anthropic Confidentially Files for IPO Following $65 Billion Funding Round

Anthropic confidentially files for IPO – days after $65B raise pushed AI firm’s valuation to $965B

June 2, 2026 By Mandy Dalugdug

Anthropic , the artificial intelligence company behind the Claude chatbot, has confidentially submitted a draft registration statement to the US Securities and Exchange Commission for a proposed initial public offering of its common stock.

The filing, announced on Monday (June 1), gives the company the option to go public once the SEC completes its review.

Anthropic said the proposed IPO will depend on market conditions and other factors, and that the number of shares to be offered and the price range have not yet been set.

The announcement was published under Rule 135 of the Securities Act of 1933 and, in the company’s words, is “not an offer to sell securities” nor “a solicitation of an offer to buy them.”

The move arrives days after Anthropic raised USD $65 billion in Series H funding on May 28, valuing the company at $965 billion post-money.

That round was led by Altimeter Capital , Dragoneer , Greenoaks , and Sequoia Capital , and co-led by Capital Group , Coatue , D1 Capital Partners , GIC , ICONIQ , and XN .

The valuation lifted Anthropic above rival OpenAI for the first time. OpenAI , the ChatGPT developer, closed a $122 billion round in March that valued it at $852 billion post-money.

Anthropic  was founded in  2021  by a group of former  OpenAI  staff, including siblings  Dario Amodei , who is CEO, and  Daniela Amodei , who is president.

Dario Amodei  had served as  OpenAI ‘s vice president of research before the breakaway.

The company was set up as a public benefit corporation focused on  AI  safety research, and released the first version of its  Claude  chatbot in  2023 .

It has since expanded the product line to include  Claude Code , a coding tool, and  Claude Cowork , a workplace assistant.

Investors backing the  Series H  round framed the raise as a bet on enterprise adoption.

“Claude’s latest advancements have driven large-scale adoption among the world’s most demanding organizations,” said  Brad Gerstner , Founder and CEO of  Altimeter Capital , in the funding announcement.

“This momentum positions Anthropic to lead the next phase of AI innovation and capture the enormous opportunity ahead.”

“Startups and Global 5000 companies alike are deploying Claude to handle complex workflows, and in doing so, Claude is learning how businesses actually operate: the context, the processes, the judgment,” said  Alfred Lin , Partner at  Sequoia Capital .

“Anthropic is building the bridge between where enterprise AI stands today and where it’s headed.”

Both Anthropic and OpenAI are moving toward the public markets at the same time.

OpenAI CEO Sam Altman played down the idea of a race to go public against Anthropic in an interview with CNBC on Monday.

“We’ll do it when we think it makes sense,” he said.

Anthropic said its run-rate revenue crossed $47 billion earlier in May.

“Claude is increasingly indispensable to our growing global community of customers, and we work tirelessly to make tools like Claude Code and Cowork more helpful, more powerful, and more adaptable to their needs,” said Krishna Rao , Chief Financial Officer of Anthropic , in the funding announcement.

“This funding will help us serve the historic demand we are experiencing, stay at the research frontier, and bring Claude to more of the places where work happens.”

The march toward a listing comes as Anthropic faces escalating litigation on two fronts.

In January 2026, a coalition of publishers including Universal Music Publishing Group , Concord Music Group , and ABKCO Music filed a second copyright infringement lawsuit against the company, seeking more than $3 billion in potential statutory damages over alleged infringement of more than 20,000 songs.

The plaintiffs said in a statement provided to MBW at the time that they had been “compelled to file this second lawsuit against Anthropic because of its persistent and brazen infringement of our songwriters’ copyrighted compositions taken from notorious pirate sites.”

They added: “We believe this will be one of the largest (if not the single-largest) non-class action copyright cases filed in the U.S.”

That action followed the publishers’ first suit, filed in October 2023 , which covered around 500 works.

Anthropic has separately agreed to pay $1.5 billion to a group of authors to settle a related lawsuit over the use of pirated books to train its AI models.

The company is also locked in a legal battle with the US government after the Pentagon designated it a supply-chain risk, a label typically reserved for companies tied to foreign adversaries.

Anthropic has said the Trump administration’s move could jeopardize billions of dollars in revenue.

Anthropic said the Series H funding is expected to advance its safety and interpretability research, expand compute to meet demand for Claude , and scale the products and partnerships its customers rely on. Music Business Worldwide

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Anthropic raises $65B in Series H funding, valuing the AI giant at $965B

_Originally reported by [Music Business Worldwide](https://www.musicbusinessworldwide.com/anthropic-confidentially-files-for-ipo-days-after-65b-raise-pushed-valuation-to-965b/)._