Anthropic Withdraws Preliminary $70 Billion IPO Plan

Anthropic’s proposed initial public offering (IPO), potentially worth nearly $70 billion, hit an unexpected snag after preliminary offering details reached investment banks, and the company subsequently withdrew them.

The AI company circulated a draft securities filing on 9 November 2026. However, it later told banks that the pricing information was inaccurate and promised to provide an updated document.

The withdrawn details outlined plans to sell approximately 866.7 million Class A shares at $70 to $80 each. At the upper end of that range, the proposed offering could raise approximately $69.3 billion.

Anthropic has not clarified which figures were incorrect. Consequently, the proposed share price, offering size and fundraising target remain unconfirmed.

Withdrawn Filing Outlines Nearly $70 Billion Offering

The preliminary filing described a combination of newly issued shares and shares sold by existing investors.

According to the circulated document, Anthropic planned to offer about 843.3 million shares. Meanwhile, existing shareholders would sell another 23.3 million shares through a secondary offering.

The proposed price range of $70 to $80 per share placed the potential offering value at approximately $69.3 billion at the upper end.

However, the company subsequently retracted the pricing information. Its communication to banks indicated that some details were inaccurate and required an updated filing.

The document also outlined a separate $26 billion private placement involving major technology companies. The investment would occur at the IPO price immediately after the public offering.

The proposed participants included:

• Google

• Nvidia

• Advanced Micro Devices (AMD)

• Broadcom

• Micron Technology

• Microsoft

• Taiwan Semiconductor Manufacturing Company (TSMC)

These commitments would create additional institutional backing for Anthropic. However, the private placement is a separate financing arrangement and should not be confused with the proceeds from the proposed IPO.

Anthropic’s Valuation and IPO Expectations

The proposed offering comes as Anthropic prepares to enter public markets following rapid growth in its AI business.

Investor discussions previously placed the company’s potential valuation as high as $2 trillion. However, expectations have since moderated, with $1.5 trillion emerging as the upper end of reported valuation estimates.

Anthropic’s financial performance remains a major factor in these discussions. The company reported nearly $17 billion in revenue for the three months ended 30 September 2026.

Nevertheless, its quarterly growth rate has slowed. This has drawn additional scrutiny over the sustainability of its expansion and long-term revenue expectations.

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The company also depends heavily on large technology partners for computing capacity. Its commitments for future computing infrastructure approach $900 billion, including arrangements involving Amazon and Google.

Consequently, investors must consider substantial infrastructure requirements alongside Anthropic’s commercial growth.

IPO Roadshow Faces Growing Market Scrutiny

Anthropic was expected to begin marketing its IPO to investors on Tuesday, 10 November. The preliminary schedule indicated that pricing could follow the subsequent week.

However, withdrawing the circulated filing introduces uncertainty about the proposed timeline and offering structure.

The timing also coincides with increased scrutiny of AI infrastructure investments. Several companies operating in data centres and AI computing have delayed or reconsidered planned listings.

Furthermore, rising interest rates and concerns about capital expenditure have influenced investor sentiment. These conditions could affect how markets assess companies with substantial future infrastructure commitments.

For Anthropic, the proposed IPO represents a major financial milestone. A successful listing could provide additional capital to support Claude development, computing infrastructure and international expansion.

Nevertheless, the company must first clarify its offering details and confirm its pricing structure.

The withdrawn document therefore represents a preliminary proposal, not a final IPO announcement. Investors will need to wait for Anthropic’s updated filing before assessing the confirmed fundraising target and valuation.

Key developments at a glance