Anthropic Retracts $70 to $80 IPO Range It Sent to Bankers

Update, 10 November: Anthropic sent bankers a copy of its IPO filing showing it aimed to sell about 867 million shares at $70 to $80 each, then followed up with an email saying details about the pricing were inaccurate and that it would update the filing later, Reuters reported, citing emails it saw late on Monday. Anthropic declined to comment. That puts the $70 to $80 range in doubt, and with it every proceeds figure below, including the $69.3 billion top, which by our arithmetic is about 867 million shares at $80. The report gives no replacement range and does not say whether the share count changes.

Update (10 Nov, The Information): The Information reported at 02:29 UTC, citing people familiar with the matter, that Anthropic late Monday sent banks an updated prospectus for its IPO and then retracted it, “saying some of the details are incorrect.” That makes it a second outlet on the retraction Reuters reported. In the free part of its story, The Information says the copy Anthropic sent first showed it aiming to raise up to $70 billion by selling about 867 million shares, and that Anthropic is expected to start marketing the IPO on Tuesday. The rest of the story is behind its paywall; the part we could read does not give corrected terms, a date for an amended filing or a comment from Anthropic.

Before that, Anthropic was aiming to raise as much as $69.3 billion in its initial public offering, Reuters reported in an exclusive dated 9 November, citing a copy of a filing it had seen. Posts relaying the report put the terms at 866.7 million new shares priced at $70 to $80 each, with all proceeds going to the company.

By our arithmetic on the retracted terms, 866.7 million shares at $80 comes to $69.3 billion, matching Reuters’ top figure, and at $70 it is $60.7 billion. Even the $69.3 billion top is 19.6% below the $86.25 billion SpaceX raised in June. Adding a reported $26 billion private placement from seven tech companies takes the total to $86.7 billion to $95.3 billion, above SpaceX at every price in the range.

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An evergreen Business Engineer explainer on financial conditions, how the price and availability of money move markets. It teaches the general idea only and does not discuss Anthropic.

What Reuters Reported

The Reuters story, by Echo Wang, is headlined “Exclusive-Anthropic aims to raise up to $69.3 billion in blockbuster IPO”. Its opening reads: “Anthropic is aiming to raise as much as $69.3 billion in what could rank among the largest initial public offerings on record, according to a copy of a filing seen by Reuters on Monday”.

We could read only that opening paragraph of the syndicated copy. The share count, the price range and the placement come from posts on X that relay the Reuters report, starting at 01:06 UTC on 10 November. Wall St Engine wrote that Anthropic “plans to sell 866.7M new shares at $70-$80 each, with all proceeds going to the company”.

A later relay by IPO Newsroom said that “Google, Nvidia, AMD, Broadcom, Micron, Microsoft and TSMC will invest a combined $26 billion in Anthropic through a private placement at the IPO price, according to Reuters”.

What Was Posted on X

A post by Wall St Engine at 01:10 UTC on 10 November relaying the Reuters report: up to $69.3 billion from 866.7 million new shares at $70 to $80, all proceeds to the company. Only the $69.3 billion figure was readable in the syndicated Reuters text; 866.7 million shares at $80 is $69.3 billion by our arithmetic.

A later post by Wall St Engine at 01:38 UTC estimating a fully diluted valuation of $1.27 trillion to $1.45 trillion, which the post says was a calculation by Claude. It is the poster’s estimate, not Reuters’ or Anthropic’s; it implies about 18.1 billion fully diluted shares by our arithmetic, a count the public S-1/A leaves blank.

What the Filings Show

Anthropic’s EDGAR page showed no filing after the amended S-1 of 2 November when we checked at 01:45 UTC on 10 November. That S-1/A still reads “between $ and $” for the price and leaves the share count blank. It confirms the listing venue: Anthropic has “applied to list our Class A common stock on the Nasdaq Global Select Market under the symbol” ANT.

The same filing says Anthropic sold its Series H preferred stock “at a price of $589.0095 per share, for aggregate gross proceeds of $65.2 billion”. As we read it, a $70 to $80 range so far below that price points to a share split before listing. The filing seen by Reuters has not been published, so the split ratio and the shares outstanding after the offering are not public.

The Numbers on the Retracted Terms, by Our Arithmetic

At 866.7 million shares, gross proceeds are $60.7 billion at $70, $65.0 billion at the $75 midpoint and $69.3 billion at $80. The top figure is 13.3% below the $80 billion low end of the $80 billion to $100 billion raise the Financial Times had reported, as we covered.

With the $26 billion placement, the new money is $86.7 billion at $70 and $95.3 billion at $80. The bottom of that span is 0.5% above SpaceX’s $86.25 billion, which included the underwriters’ full option; the top is 10.5% above. The placement would be 27.3% of the combined total at $80. The IPO alone at $80 is 3.2 times Alibaba’s $21.8 billion offering of 2014.

What It Means for the Valuation Talk

Without the post-offering share count, the range cannot yet be turned into a market value. The marks so far are reports and estimates. Bloomberg reported on 6 November that investors were discussing $1.2 trillion to $1.3 trillion, and a Bloomberg headline put the low end at $1.1 trillion. Bloomberg later reported that Anthropic would start marketing at a lower target.

Morningstar values Anthropic at $1.7 trillion in its base case. The Series H round in May was priced at a $965 billion post-money valuation.

Checking the Relayed Valuation

Wall St Engine posted at 01:38 UTC that the range “implies a fully diluted valuation of roughly $1.27T to $1.45T”, adding “Calculation by Claude.” That figure is the poster’s own estimate, not Reuters’ or Anthropic’s. By our arithmetic, it assumes about 18.1 billion fully diluted shares: $1.27 trillion divided by $70, and $1.45 trillion divided by $80.

We cannot confirm that share count from EDGAR. The only public S-1/A, of 2 November, leaves blank the shares to be outstanding after the offering, so the count cannot be checked there, and the filing Reuters saw was not on EDGAR at 01:45 UTC. If the estimate holds, its top end would be 50.3% above the $965 billion Series H mark and 14.7% below Morningstar’s $1.7 trillion, by our arithmetic.

The Timetable

The Wall Street Journal reported on 9 November that Anthropic is aiming for its shares to start trading Thursday or Friday next week, 19 or 20 November by our reading. IFR reported a roadshow launch on Tuesday 10 November. Direxion’s leveraged Anthropic funds are expected to begin trading the first trading day after Anthropic does, as our ETF filings piece reports.

For where the money goes, our read of the S-1 found that Anthropic’s research spending is four times its cost of serving Claude. The S-1/A lists “investments in compute and infrastructure” among the uses of the net proceeds.

The Structural Read

As we read it, the reported structure splits the money in two: public buyers supply up to $69.3 billion on the retracted pricing and seven suppliers and partners a fixed $26 billion at whatever price the IPO sets. The valuation cannot be checked against a filing until the amended S-1 with the share count is public.

Three Implications

FOR IPO BUYERS Anthropic told bankers the $70 to $80 pricing was inaccurate, Reuters reported, and the share count is reported, not filed: the S-1/A on EDGAR at 01:45 UTC still left the price blank.

FOR THE PLACEMENT INVESTORS Google, Nvidia, AMD, Broadcom, Micron, Microsoft and TSMC would buy at the IPO price, according to relays of Reuters, for a combined $26 billion.

FOR THE VALUATION TALK A relayed $1.27 trillion to $1.45 trillion fully diluted estimate sits against the $965 billion Series H mark and Morningstar’s $1.7 trillion, and awaits the filed share count.

The Business Engineer Lens

This story maps onto the Business Engineer framework The AI Supercycle.

The framework describes the AI build as having “a dual character that is simultaneously a bubble and a supercycle”.

As we read it, the reported terms show both sides: a raise that could rank among the largest on record, and a placement in which chip and cloud suppliers buy into a customer. The framework predates the report and does not discuss it.

What Is Not Established

The $69.3 billion figure comes from Reuters, which saw a copy of a filing that was not on EDGAR when we checked. The share count, the $70 to $80 range, the all-primary structure and the $26 billion placement come from X posts relaying Reuters; we could not read them in Reuters’ own text. Anthropic has not announced a range, a split ratio, the shares outstanding after the offering, or a pricing date. Reuters later reported, citing emails to bankers, that Anthropic said the pricing details in the filing copy it sent were inaccurate and that it would update the filing; the new range is not public.

The Bottom Line

Anthropic sent bankers a filing copy with a $70 to $80 range, then said the pricing details were inaccurate and that it would update the filing, Reuters reported. On those retracted terms, the up to $69.3 billion Reuters had reported from 866.7 million new shares would be less than SpaceX’s $86.25 billion on its own and more with the reported $26 billion placement, by our arithmetic. The range and the valuation await the updated filing.

Correction/Update (10 Nov): This piece first presented the $70 to $80 range, and the $69.3 billion raise it implies, as Anthropic’s current terms under the headline “Anthropic Seeks Up to $69.3B in IPO at $70 to $80 a Share”. Reuters then reported, citing emails to bankers, that Anthropic said details about the pricing in the filing copy it sent were inaccurate and that it would update the filing later. We have retitled the piece, added that report, and labelled the arithmetic as based on the retracted terms. Anthropic declined to comment to Reuters.