IPO process
The Anthropic IPO — where we actually stand
No Anthropic IPO date is confirmed: a confidential draft registration statementConfidential draft registration statementA draft S-1 that the SEC reviews without publishing it.Anthropic confirmed submitting one on 1 June 2026. Nothing inside it is public, so no financials, risk factors or share counts can be read from it yet.FULL DEFINITION → was filed on 1 June 2026, no public S-1S-1The public registration statement containing financials, risk factors and the principal stockholders table.No public Anthropic S-1 exists on EDGAR. Until one appears, every financial detail in circulation is second-hand.FULL DEFINITION → has appeared on EDGAR, and a public filing must land at least 15 days before any roadshowRoadshowManagement presenting the offer to institutional investors before pricing.A public S-1 must be on EDGAR at least 15 days before a roadshow starts, which is the whole reason the S-1 Watch page exists.FULL DEFINITION →.
When is the Anthropic IPO?
There is no confirmed Anthropic IPO date: an October / Q4 2026 Nasdaq window is reported by the financial press, and the company has not confirmed it — reported, not confirmed.
No listing date is confirmed. An October / Q4 2026 Nasdaq window is reported by the financial press; Anthropic has not confirmed it. A date only becomes firm at pricing.
Financial Times reporting, Aug 2026 — no public article URL, attribution only.
Has Anthropic filed a public S-1?
Not publicly: Anthropic confirmed a confidential draft registration statement submitted to the SEC on 1 June 2026 under Rule 135, and no public S-1 appears on EDGAR, which this site checks every five minutes.
Share count, price range and listing date are not public. They appear in the public S-1 and its amendments.
Submitted 1 June 2026, confirmed by Anthropic under Rule 135.
A confidential submission lets an emerging growth company work through SEC comments before anything is visible. Rule 135Rule 135The SEC rule letting a company confirm that a filing exists without the statement counting as an offer of securities.This is the rule Anthropic used in its 1 June 2026 confirmation.FULL DEFINITION → allows the company to state that it has submitted — and little else: no terms, no valuation, no marketing of the offering. So the fact of the filing is public, and the financials, share classes, risk factors, ownership table and price rangePrice rangeThe indicative per-share range published in an S-1/A before the offer is priced.Anthropic has published no range. Any per-share number circulating today is speculation, not a filed figure.FULL DEFINITION → are not.
EDGAR full-text and company search are polled every five minutes around the clock; the last successful check was 2026-10-16 08:50 UTC. Only filings where Anthropic is the filer count — a filing that merely mentions Anthropic is discarded. Any match on S-1, S-1/AS-1/AAn amended S-1, typically the filing that carries the price range and share count.This is the filing that turns a rumoured Anthropic valuation into a number anyone can check.FULL DEFINITION →, 424B4 or 8-A12B publishes without human review, because a primary source needs none, and the status chip at the top of this page flips the moment it lands. If a poll fails or the last check is more than 30 minutes old, the chip reads degraded rather than pretending to be current.
- Series A, $124M
Anthropic incorporates as a public benefit corporation and raises its first round.
No company announcement; press reports, May 2021 - Confidential draft S-1 submitted
Anthropic confirms a confidential submission under Rule 135. The document itself is not public.
sec.gov - NOWWaiting for the public S-1
EDGAR is polled continuously. Nothing about share count, price range or listing date is public until the filing appears.
- EXPECTEDPublic S-1 and first pricing range
The public filing starts the clock. A price range usually follows in an amendment two to four weeks later.
- EXPECTEDRoadshow and pricing
Institutional bookbuilding runs roughly two weeks. Retail allocation, if any, is decided by the underwriters.
- EXPECTEDFirst trading day
Ticker becomes public in the Form 8-A ahead of listing.
- EXPECTEDLock-up expiry
Typically 180 days after listing, subject to the terms in the prospectus.
What has to happen before Anthropic can list?
Seven steps, in order: confidential draft, public S-1, an S-1/A carrying a price range, the roadshow no earlier than 15 days after the public filing, pricing, the first trading day, and the lock-up expiry.
| Step | What it discloses |
|---|---|
| 1 · Confidential draft S-1 | Nothing. The SEC reviews it privately; Rule 135 lets the company confirm the submission exists and no terms. |
| 2 · Public S-1 | Everything in the disclosure table below, at once: financials, share classes, risk factors, principal stockholders, use of proceeds. |
| 3 · S-1/A with a price range | The price range and the share count, usually only in the last amendments before the roadshow. |
| 4 · Roadshow | No earlier than 15 days after the public filing. Management markets the offering; demand at this stage moves the range. |
| 5 · Pricing | The final price, set the night before trading. This is the first firm number and the first firm date. |
| 6 · First trading day | The ticker starts trading. The opening print is set by the exchange auction, not by the underwriters. |
| 7 · Lock-up expiry | Typically 90–180 days after listing. Insider selling becomes possible, which is a separate supply event. |
What will the S-1 disclose?
Ten things this site currently has to render as not public — share count, price range, recognised revenue, exact ownership percentages, liquidation preferences and share classes, the definition of adjusted operating profit, net income, cash burn, compute commitments and lock-up terms.
| Not public today | What it settles | Where we say so |
|---|---|---|
| Shares outstanding | Turns a valuation into a price per share. Without it no share price can exist. | Stock |
| Price range | The first filed number for the offering; discussion before it is not a range. | Stock |
| Recognised revenue (not run-rate) | Audited revenue for the period, replacing the annualised run-rate figure. | Valuation |
| Net income | The bottom line under GAAP, not an adjusted figure chosen by the company. | Valuation |
| Exact ownership percentages | The principal stockholders table — every holder above five percent. | Cap table |
| Liquidation preferences and share classes | What a reported stake is actually worth, and who controls the votes. | Indirect exposure |
| Definition of “adjusted operating profit” | Which costs the reported first profit excludes. | Bull case |
| Cash burn | Cash used in operations, against cash on hand and the raise. | Bear case |
| Compute commitments | Contracted spend with cloud and chip suppliers, and its term. | Bear case |
| Lock-up terms | How long insiders are held, and any early-release triggers. | How to invest |
Every row above is a figure this site renders as not public rather than estimating. One document resolves all ten of them, on one day, and that is the reason this page exists.
Who is running the Anthropic IPO?
Goldman Sachs, JPMorgan and Morgan Stanley are reported to lead the offering on Nasdaq, with Freshfields as legal adviser; no syndicate is confirmed until the cover of the public S-1 lists it.
Underwriter names come from press reporting, not from a filing, so treat them as reported: Goldman Sachs, JPMorgan and Morgan Stanley as lead underwriters, Freshfields as legal adviser, and Nasdaq as the reported venue. The syndicate, the fee split and the greenshoeGreenshoeAn option letting underwriters sell up to 15 percent extra shares to stabilise the price after listing.Standard in large offerings, and worth reading in the underwriting section of any Anthropic S-1 when one becomes public.FULL DEFINITION → are only verifiable on the cover and in the underwriting section of the public S-1.
What happens after the listing?
A lock-up of typically 90 to 180 days keeps insider stock off the market, retail buyers get the open rather than an allocation, and the SpaceX listing in June 2026 is the closest precedent for how that trades.
The lock-upLock-up periodA contractual ban on insiders selling their shares after listing, usually 90 to 180 days.If Anthropic lists in Q4 2026, the first large supply of insider shares could reach the market in 2027 — a supply event, not a verdict on the business.FULL DEFINITION → is a contractual promise by insiders and early investors to the underwriters, typically 90 to 180 days, sometimes with an early-release trigger tied to a price level or an earnings date. Its exact terms are not public until the S-1; when it expires, supply that was held off the market can arrive at once, which is a distinct event from the listing itself.
Retail allocationAllocationThe number of shares an underwriter assigns to an investor before trading opens.Retail allocation in a hot listing is typically a fraction of what is requested, if any at all.FULL DEFINITION → at pricing is rare and small: for most readers the first opportunity is buying at the open, at whatever the exchange auction sets, not at the offer price. The SpaceX listing in June 2026 is the nearest precedent for how a mega-cap private company trades in its first days.
THE SPACEX COMPARISON, WITH FIGURES →What is the Anthropic IPO date?
No Anthropic IPO date exists as a fact: a date becomes real only when the company prices the offering the night before trading, and everything before that — including the reported Q4 2026 window — is press reporting the company has not confirmed.
How big could the Anthropic IPO be?
A raise of $60–100 billion is reported as the ambition, which would be the largest IPO ever if it happens at that size — SpaceX listed at $1.77 trillion in June 2026 for comparison.
Reported ambition, not a filed figure. No range appears in any public S-1.
In the upward direction: at the discussed $2T valuation, a $60–100 billion raise is a 3–5% floatFree floatThe share of a company's stock that is actually available to trade.A small float at listing can make the first weeks of pricing volatile and unrepresentative of what the whole company is worth.FULL DEFINITION →, which is small enough for demand to be concentrated and for the first days to trade thin. In the other direction: the SpaceX listing in June 2026 already absorbed a large share of the institutional appetite for mega-cap private listings, and a deal this size can be cut, delayed or repriced. Both directions are reported expectation, not filed fact.
What Anthropic stock exists todayRoutes to exposure before the IPO
One email the minute the S-1 hits EDGAR.
NO TRACKING · ONE-CLICK DELETE · PURPOSE: S-1 NOTIFICATION
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