Anthropic IPO News 2026: Latest on the S-1 Amendment, Ticker ANT and Listing Date

As of November 5, 2026, the latest Anthropic IPO news is that Anthropic filed Amendment No. 1 to its S-1 on November 2 with third-quarter results, the Nasdaq listing as ANT is set, no price range or date has been announced, and reports point to a debut as soon as the week of November 16. Every item below is labeled confirmed, reported or market expectation.

Key Takeaways

• Anthropic, PBC filed its public Form S-1 on October 26, 2026: Class A shares on the Nasdaq Global Select Market as ANT, with 22 underwriters led by Goldman Sachs and Morgan Stanley.
• The filing discloses $16.29 billion of revenue and an $80.7 billion net loss for the first half of 2026, about $72.4 billion of it a non-cash charge on convertible notes, and Amendment No. 1, filed November 2, 2026, added third-quarter revenue of $16.96 billion and a $567 million operating loss.
• Bloomberg reported on October 28 that JPMorgan will lead U.S. retail sales and Citigroup international retail, and that Anthropic is considering about 15% to 20% of the shares for individual investors, a proportion that could change.
• The roadshow cannot start before November 10, 2026, and Polymarket priced a listing by November 30 at about 84% on November 5.
• Share count, price range and listing date are still blank after Amendment No. 1 and will appear only in a later amendment.

Latest Anthropic IPO News 2026: Updates, Newest First

The newest Anthropic IPO items are the November 5 market odds, the newest reports are the November 2 Japan-tranche and Robinhood stories, and the newest confirmed fact is the November 2 filing of Amendment No. 1; everything older is context.

• November 5, 2026 — Market expectation:Polymarket's "Anthropic IPO by…" market priced a listing by November 20 at 63%, by November 25 and by November 30 at about 84% and by December 31 at about 91%, with a listing by November 15 under 2%.
• November 2, 2026 — Confirmed (filed): Anthropic filed Amendment No. 1 (Form S-1/A) with third-quarter results: $16.96 billion of revenue, up about 47% from the second quarter, a $567 million GAAP operating loss after the second quarter's $974 million operating profit, a $23.29 billion net loss of which about $21.94 billion came from fair-value changes on convertible notes and related instruments, and $131.8 billion of cash and short-term investments at September 30; the share count and price range are still blank.
• November 2, 2026 — Reported:Bloomberg reported that Anthropic is seeking up to about $3.5 billion from Japanese investors as part of its U.S. IPO, with no separate Japanese listing, Mizuho managing the Japan offering, and MUFG Morgan Stanley, Rakuten Securities and SBI Securities expected to take part.
• November 2, 2026 — Reported: Robinhood CFO Shiv Verma told Bloomberg TV that Robinhood is competing for an allocation, calling it "a food fight out there," as Yahoo Finance reported; Robinhood is not named among the underwriters, and no allocation has been confirmed.
  
• October 29, 2026 — Reported: the Motley Fool reported estimates that marketing could begin the week of November 9, with a debut in mid-to-late November.
• October 28, 2026 — Reported:Bloomberg reported, in a story first published on the evening of October 27 U.S. time, that Anthropic picked JPMorgan to lead U.S. retail share sales and Citigroup to coordinate international retail, and that it was considering about 15% to 20% of the IPO shares for retail investors, a proportion that could change; Business Insider also reported on the retail share, as carried by Yahoo Finance UK.
• October 26, 2026 — Reported: the Wall Street Journal reported that Anthropic aims to debut as soon as the week of November 16, 2026, according to Yahoo Finance; Anthropic has not confirmed a date.
  
• October 26, 2026 — Confirmed (filed): Anthropic, PBC filed its public S-1 and announced it the same day; the filing covers a Class A listing on the Nasdaq Global Select Market as ANT, names 22 underwriters led by Goldman Sachs and Morgan Stanley, and discloses $16.29 billion of first-half revenue, an $80.7 billion net loss of which about $72.4 billion is non-cash, a $974 million operating profit for the second quarter, and $131.7 billion of cash and short-term investments at June 30.
• October 14, 2026 — Reported, now settled by the filing: Bloomberg had reported on October 1 that Anthropic would meet prospective investors on October 14, and Reuters reported that the closed-door meeting took place at the company's San Francisco headquarters; the Financial Times first reported that Anthropic told investors there that third-quarter revenue was about $16.8 billion, followed by Reuters and Bloomberg, as Reuters reported, and Amendment No. 1 later filed $16.96 billion.
• October 1, 2026 — Reported: Bloomberg reported that Anthropic was targeting a listing as soon as mid-November, with formal marketing as soon as the week of November 9, which is consistent with the 15-day floor the October 26 filing later set.
• September 28, 2026 — Reported, partly confirmed: the "Anthropic IPO leak" was a Reuters report based on a draft of the prospectus it had reviewed, which put 2025 revenue at about $4.6 billion and the valuation ambition above $2 trillion, as Fortune recounted; the public S-1 confirmed 2025 revenue of $4.59 billion, while the valuation target remains a report.
• September 18, 2026 — Reported, did not happen in October: the Wall Street Journal reported that the target had moved from October to November; the October 26 filing date made an October listing impossible, so the delay report held.
• September 13, 2026 — Reported, later confirmed: several reports said Nasdaq had been chosen as the exchange, and the S-1 confirmed it on October 26.
• September 11, 2026 — Reported, still unconfirmed: Reuters reported that Anthropic was in talks to bring in Nvidia as an anchor investor for up to $10 billion; the S-1 summary names no anchor investor.
• September 4, 2026 — Reported, did not happen: reports put marketing in mid-October with a listing before the end of that month; the October 26 filing and the November 10 roadshow floor overtook this.
• June 1, 2026 — Confirmed: Anthropic announced that it had confidentially submitted a draft S-1 to the SEC, with the share count and price not yet set.
• May 28, 2026 — Confirmed: Anthropic announced $65 billion of Series H funding at a $965 billion post-money valuation, led by Altimeter, Dragoneer, Greenoaks and Sequoia.
• February 12, 2026 — Confirmed: Anthropic announced $30 billion of Series G funding at a $380 billion post-money valuation, led by GIC and Coatue.

What's next: a further amended S-1 with the share count and price range, a roadshow that cannot start before November 10, 2026, pricing the evening before the first trade, and ANT's first session on Nasdaq.

The Anthropic IPO news log as of November 5, 2026, with each entry labeled confirmed, reported or market expectation.

Who Is Underwriting the Anthropic IPO?

Goldman Sachs and Morgan Stanley lead the Anthropic IPO, and the S-1 cover lists 22 underwriters in total.

The two lead banks are also the ones distributing the preliminary prospectus, according to Anthropic's filing announcement.

JPMorgan is not one of the two leads, but Bloomberg reported on October 28 that Anthropic chose the bank to lead U.S. retail sales, with Citigroup coordinating international retail.

The S-1 itself says the underwriters may allocate shares to clients of their online brokerage affiliates, but it names no broker and sets no retail percentage, so the reported plan to consider about 15% to 20% for retail investors is not a filed term and could change.

The S-1 also lists selling arrangements for the United Kingdom, parts of the European Economic Area, Japan, Australia, Canada and Switzerland, plus a separate European retail offering under its own prospectus.

In Japan, Bloomberg reported on November 2, 2026 that Anthropic is seeking up to about $3.5 billion from Japanese investors as part of the U.S. offering, with Mizuho managing that portion and no separate Japanese listing.

Robinhood is not named among the underwriters, and its CFO said on November 2 that the broker is competing for an allocation, which is not the same as having one.

The banks' names are unlikely to change in the amended filing, but the share split between institutions and individuals will appear only in the final prospectus.

Who is running the Anthropic IPO, split into filed terms and reported terms.

What Is Confirmed and What Is Still a Rumor

Six things are confirmed by the company or the filings, one reported figure has been settled by the filing, one reported item has already been proven wrong, and five remain unconfirmed.

• Public S-1 filed October 26, 2026 — Confirmed: Anthropic, PBC, registration number 333-299633, on EDGAR.
• Amendment No. 1 (Form S-1/A) filed November 2, 2026 — Confirmed: on EDGAR, with third-quarter results and no price range.
  
• Nasdaq Global Select Market, ticker ANT, Class A common stock — Confirmed: S-1 cover.
• 22 underwriters led by Goldman Sachs and Morgan Stanley — Confirmed: S-1 cover.
• $965 billion post-money valuation — Confirmed as of May 28, 2026: Series H announcement; the IPO valuation is a separate, unset number.
• October listing — Did not happen: the September reports of a mid-October roadshow were overtaken by the October 26 filing and the 15-day rule.
• Nasdaq as the venue — Confirmed: reported in September, confirmed by the S-1.
• About $16.8 billion of third-quarter revenue — Settled by the filing: reported after the October 14 investor meeting; Amendment No. 1 filed $16.96 billion, as broken down in Anthropic's Q3 2026 results.
  
• Nvidia as an anchor investor — Still unconfirmed: reported in September; absent from the S-1 summary.
• About 15% to 20% for retail, with JPMorgan on U.S. retail and Citigroup on international retail — Still unconfirmed: Bloomberg reported on October 28 that Anthropic was considering this range and that the proportion could change; the S-1 names no broker and no percentage.
• Up to about $3.5 billion from Japanese investors — Still unconfirmed: reported by Bloomberg on November 2, 2026, as part of the U.S. offering rather than a separate Japanese listing.
• A Robinhood allocation — Still unconfirmed: Robinhood's CFO said on November 2, 2026 that it is competing for one, and Robinhood is not named among the underwriters.
  
• IPO valuation of $1.5 trillion to $2 trillion — Still unconfirmed: a reported discussion range, per Yahoo Finance, that only the price range in a later amended S-1 can settle.

Which Anthropic IPO claims are confirmed, which were proven wrong, and which are still unconfirmed.

How We Verify Every Anthropic IPO Announcement

Every item on this page passes through three checks before it is labeled confirmed: Anthropic's newsroom, the SEC's EDGAR database and the exchange's listing notices.

On EDGAR, the filer name is "Anthropic, PBC" and the CIK is 0002130357; Amendment No. 1 (Form S-1/A) was filed there on November 2, 2026 without a price range, and a later amendment will carry it.

Anthropic's newsroom published notices for the June 1 confidential submission and the October 26 public filing, and had posted nothing further on the IPO as of November 5, 2026, so Amendment No. 1 appeared on EDGAR alone.

Nasdaq's listing notice is the last check, because it is what confirms the first trading day.

Reports from Reuters, Bloomberg and the Wall Street Journal are logged here as "reported" until one of the three checks confirms them, which is why the retail allocation, the Japan tranche, Robinhood's bid and the Nvidia talks still carry that label.

Where Anthropic's IPO Plans Stand in 2026

As of November 5, 2026, Anthropic's IPO plans are at stage two of five: the public S-1 and Amendment No. 1 are filed, the exchange and the ticker are set, and the numbers through September 30 are on file.

The remaining stages are an amended filing with the price range, a roadshow that cannot begin before November 10, 2026, and pricing that fixes the first-trade date.

The filing is marked "subject to completion," so the offering terms will change in amendments while the financial history will not.

The confirmed dates, the reported estimates and the market's expected window are laid out in the full IPO timeline.

How a U.S. IPO Moves From Confidential Filing to First Trade

A U.S. IPO that uses the SEC's confidential review process moves through five stages, and Anthropic has completed two of them.

• Stage 1 — confidential draft (done, June 1, 2026): the company submits a draft S-1 privately, the SEC comments, and the company revises.
• Stage 2 — public S-1 (done, October 26, 2026): the full registration statement goes on EDGAR at least 15 days before the roadshow, under the SEC's expanded draft registration procedures.
• Stage 3 — amended S-1 with the price range (ahead): a Form S-1/A adds the share count and the price range, which together imply the valuation; Amendment No. 1 of November 2, 2026 added third-quarter results but not these terms.
• Stage 4 — roadshow and pricing (ahead, no earlier than November 10, 2026): management meets institutional investors, the range is revised on demand, the SEC declares the registration effective, and the final price is set the evening before trading.
• Stage 5 — first trade (ahead): ANT opens on Nasdaq the next morning at a price the market sets.

Where Anthropic sits in the five-stage path from confidential draft to first trade.

Why the Anthropic IPO Timeline Keeps Moving

Reports run ahead of filings, and the filings are what set the dates.

The September reports of an October listing were overtaken by the October 26 filing, which made an October listing arithmetically impossible under the 15-day rule.

The 15-day rule is the only hard date in the process, and it is a floor rather than a schedule.

SEC review comments, Nasdaq's approval and the market conditions Anthropic named in June set the real timetable, which is why any date more precise than "no earlier than November 10" should be treated as a report until an amended filing confirms it.

The market's own estimate of the date is visible in the Polymarket odds, which repriced sharply once the filing landed.

Anthropic's Valuation and Funding Before the IPO

Anthropic's confirmed valuation rose from $380 billion in February 2026 to $965 billion in May 2026, and the IPO valuation is a separate number that is still unset.

The S-1 adds that Anthropic had raised $141.1 billion in total as of June 30, 2026, and held $131.7 billion of cash and short-term investments on that date.

Amazon has invested about $18 billion since 2023, and Google about $20 billion of preferred stock in 2026, with both expected to hold more than 5% after the listing without voting rights.

Press reports put the IPO valuation discussion at $1.5 trillion to $2 trillion, and Bloomberg reported on October 28 that investors had indicated $1.4 trillion to $1.5 trillion; only the price range in a later amended S-1 can settle it.

The round-by-round history and the ownership table are in the guide to Anthropic's valuation and who owns what.

Has Anthropic Announced a Ticker Symbol or an Exchange?

Yes, the S-1 states that Anthropic has applied to list its Class A common stock on the Nasdaq Global Select Market under the symbol ANT.

Nasdaq's approval is confirmed at pricing, and no shares can be bought under any symbol before the first trade.

Other symbols that circulated in 2026, including prediction-market placeholders, were guesses, and the filing settled the question.

Can You Buy Anthropic Stock Before the IPO?

No, there is no open market for Anthropic stock, and unapproved transfers are void under the company's investor notice and the filing's transfer restrictions.

Whether the stock is public yet, and what happens on listing day, is covered in the guide to whether Anthropic stock is public yet and how to buy it.

The pre-listing routes that do exist, and what each one actually delivers, are compared in the guide to secondary marketplaces, listed funds and pre-IPO products.

On MEXC, the Anthropic Pre-IPO Countdown page follows the same milestones this news log tracks, from the amended filing to the first trade.

Follow the Anthropic Pre-IPO Countdown on MEXC

What to Watch Next

Three documents will move this page next, in this order.

• A further amended S-1 (Form S-1/A) on EDGAR: Amendment No. 1 left the share count and price range blank, so the next amendment is the one that implies the IPO valuation.
• The final prospectus (Form 424(b)) the morning after pricing: the final price, the proceeds and the retail split.
• Nasdaq's listing notice for ANT: the first trading day.

Pre-IPO products and prediction markets will react to each of these, but they are not disclosures.

Frequently Asked Questions

Has Anthropic announced its IPO?

Yes, Anthropic announced its public S-1 filing on October 26, 2026, after announcing a confidential draft submission on June 1, 2026, and filed Amendment No. 1 on November 2, 2026.

What is the latest Anthropic IPO news?

As of November 5, 2026, the latest Anthropic IPO news is Amendment No. 1 to the S-1, filed November 2 with third-quarter revenue of $16.96 billion, while the price range and listing date are still blank.

Is Anthropic publicly traded?

No, the registration is not yet effective and no shares have been priced, so ANT does not trade yet.

When will Anthropic IPO?

No date is set; the roadshow cannot begin before November 10, 2026, and the Wall Street Journal reported that Anthropic aims to debut as soon as the week of November 16.

What is the Anthropic ticker symbol?

ANT, on the Nasdaq Global Select Market, per the S-1.

Which banks are running the Anthropic IPO?

Goldman Sachs and Morgan Stanley lead a syndicate of 22 underwriters, and JPMorgan and Citigroup are reported to be coordinating U.S. and international retail sales, respectively.

Is Robinhood part of the Anthropic IPO?

Not confirmed; Robinhood's CFO said on November 2, 2026 that the company is competing for an allocation, and Robinhood is not named among the underwriters.

Was there an Anthropic IPO leak?

Yes, Reuters reported on September 28, 2026 on a draft prospectus it had reviewed, and the public S-1 of October 26 confirmed the 2025 revenue figure it cited.

What is Anthropic's IPO price?

Not set; Amendment No. 1 of November 2, 2026 left it blank, so the price range will appear in a later amended S-1, and the final price is set the evening before trading.

What is Anthropic's valuation?

$965 billion post-money as of May 28, 2026, with press reports putting the IPO discussion range at $1.5 trillion to $2 trillion.

Will Anthropic or OpenAI list first?

Anthropic, because it has a public S-1 on EDGAR while OpenAI has only a confidential submission and is reported to be leaning toward 2027.

The Bottom Line on Anthropic's IPO News

Confirmed: one public filing and one amendment, one exchange, one ticker and 22 banks; reported: a retail allocation, a Japan tranche, an anchor investor and a valuation range; blank: the date and the price.

The next major entry on this page will be a further amended S-1 with the price range, and until it lands, every date and valuation tied to the offering is a report or a market expectation.

Check EDGAR and Anthropic's newsroom first, this page second, and headlines last.

Follow the Anthropic Pre-IPO Countdown on MEXC

Trading crypto assets is high-risk; prices can be highly volatile and you may lose everything you put in. No security measure removes all risk, and MEXC does not promise principal protection or absolute security. This article is not investment advice.

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