Anthropic IPO is oversubscribed several times, Bloomberg says

Felix Laurent 11 Nov 2026 4 min read

Funding

Anthropic's IPO is already oversubscribed several times over, Bloomberg reported on November 11, 2026. Investors have put in orders for multiple times the shares on offer, a day after the roadshow began. The demand came mostly from large anchor-size orders, according to people familiar with the deal. Anthropic did not comment, and the terms can still change.

The money at stake is huge. Through the IPO and a private placement, Anthropic and its co-founders could raise up to $90.4 billion at the top of the price range. Bloomberg says the company is aiming for a fully diluted valuation of about $1.4 trillion.

What the amended filing says about the Anthropic IPO

The terms came in an amended S-1 filed with the SEC on November 10. It replaced the draft that Anthropic sent to banks and then retracted a day earlier, which had listed $70 to $80 per share.

Term	Amended S-1, November 10
Price range	$70 to $78 per Class A share
Shares offered	825 million
New shares sold by Anthropic	801.4 million
Shares sold by co-founders	23.6 million
Underwriters' option	Up to 123.75 million extra shares
IPO proceeds at $78	Up to $64.35 billion
Private placement	$26 billion of nonvoting Class N stock
Ticker	ANT on Nasdaq

The $90.4 billion headline adds the two pieces together. Seven companies agreed to buy Class N shares at the IPO price: Google, Nvidia, AMD, Broadcom, Micron, Microsoft and TSMC. Those shares close right after the listing and are not covered by the underwriters' lock-up. Goldman Sachs and Morgan Stanley lead a group of 22 banks.

Some of the shares come from the people who started the company.

How much Anthropic's co-founders are selling

All seven co-founders are selling stock in the offering: Dario Amodei, Daniela Amodei, Tom Brown, Jack Clark, Jared Kaplan, Sam McCandlish and Chris Olah. Split evenly, the 23.6 million shares come to about 3.4 million each. At the $74 midpoint, that is about $250 million per founder and $1.75 billion in total, according to Bloomberg.

Bloomberg says the sales equal about 1.5% of each founder's stake. Anthropic gets none of that money. The founders keep control either way: a single Class F share held by their joint company carries 50.1% of the voting power.

Other insiders want in. Board members and affiliated entities have indicated interest in buying up to $303 million of shares at the IPO price, the filing says. That interest is not binding.

Insider buying is a small signal. The bigger one is the order book, and it needs some reading.

What "oversubscribed" means for the Anthropic IPO

Oversubscribed means orders exceed the shares available. Bankers use that demand to set the final price, and often to raise the range during the roadshow. Bankers on the deal say the shares could price above $78. They want to lift the valuation above $1.5 trillion, the Financial Times reported.

The valuation depends on how the shares are counted:

Measure	Valuation at $78	Source
Fully diluted, including options and other equity	About $1.405 trillion	CNBC, Bloomberg
Shares outstanding after the offering, about 13.1 billion	About $1.02 trillion	Reuters, via Investing.com
Last private round, May 2026	$965 billion	CNBC

Both IPO figures sit well below earlier talk. Investors once discussed up to $2 trillion. After the AI selloff in early November, $1.5 trillion came to be seen as the high end. We covered that slide in our piece on the IPO valuation.

Strong books do not guarantee a good debut. Zero Hedge listed recent oversubscribed deals that later traded below their offer price, including Klarna and StubHub. Jack Selby is a managing partner at Peter Thiel's family office. He told Bloomberg TV that a weak Anthropic debut would be the worst outcome for the AI bubble.

There are also signs of early holders reducing their risk. Some investors are passing part of their allocations on to other buyers, which earns them fees, Bloomberg reported. Holders of pre-IPO stakes are pitching them through special purpose vehicles.

How Anthropic is marketing the IPO

The roadshow started on Tuesday, November 10. On Friday, Dario Amodei will appear in a livestreamed event with JPMorgan Chase CEO Jamie Dimon. Anthropic plans to price the shares on November 18 and start trading on November 19, CNBC reported.

Retail investors get an unusually large share. Anthropic is targeting about 20% for individual buyers, CNBC's sources said, against 5% to 10% in a typical IPO. The offering also includes public tranches in Australia, Canada, parts of the EU, Japan, Switzerland and the UK. Bloomberg reported earlier that the Japan tranche could reach $3.5 billion.

The product side lines up with the timing. Anthropic released Claude Fable 5.2 on November 9, the day its quiet period ended. The model took first place on the Artificial Analysis Intelligence Index and came with a 20% price cut.

Several things outside Anthropic's control could still move the price. Nvidia reports earnings on November 17, a day before pricing. Interest rates are rising, and the Democratic sweep in last week's midterms brought threats of data center moratoriums.

Will Anthropic's IPO price above the range?

The early signs point that way. A book covered several times in its first day gives the banks room to lift the range, and they already say they want to. The company started from a cautious valuation of about $1.4 trillion, well below the $2 trillion once discussed, which leaves space to move up.

The risk sits after pricing. Recent hot deals have slipped once trading began, and early holders are already selling exposure through allocations and SPVs. The order book shows that investors want Anthropic shares at $78. Whether they still want them after the first day of trading will be decided on November 19.