Anthropic IPO filing details at a glance
The table below summarizes the company’s public S-1 announcement. “Not specified” describes the limits of that source; it does not claim that the full prospectus contains no information on the subject.
| Filing item | Confirmed detail |
|---|---|
| Issuer | Anthropic, PBC |
| Registration form | Form S-1, filed with the U.S. Securities and Exchange Commission |
| Public announcement | October 26, 2026 |
| Security described | Class A common stock |
| Intended exchange | Nasdaq Global Select Market |
| Proposed ticker | ANT |
| Offering share count | Not determined in the announcement |
| Price range | Not determined in the announcement |
| Registration effectiveness | Not yet effective at the time of the announcement |
| Prospectus request contacts | Goldman Sachs & Co. LLC and Morgan Stanley & Co. LLC |
| First trading day | Not specified in the announcement |
Source documents and their scope
Confidential draft Form S-1 submission
Establishes the draft submission and the company’s statement that the proposed offering depended on market conditions and other factors.
OCTOBER 26, 2026 · COMPANY ANNOUNCEMENTPublic Form S-1 filing announcement
Establishes the proposed security, exchange and ticker, together with the unpriced status of the offering at that point.
REGULATORY DOCUMENT SEARCHSearch the SEC’s EDGAR database
Search for Anthropic, PBC and inspect the relevant Form S-1, amendments and final prospectus. A document’s existence, contents and version must be checked separately.
A filing announcement is not the full S-1
The short company announcement communicates a filing milestone. The prospectus is where investors examine financial statements, business descriptions, share-count information, governance, selling shareholders and risk disclosures. Those documents have different levels of detail and should not be treated interchangeably.
This page is a review of company-announced offering terms, not an independent analysis of the full financial statements. It does not reproduce unverified revenue, loss, ownership or voting-control figures. It also does not attribute specific risk factors to Anthropic without checking the relevant prospectus section.
How to read a later filing or amendment
First match the issuer, document type, filing date and version. Then separate historical business figures from proposed transaction terms. A new amendment can change an earlier price range or share count, so retaining only a number without its source version loses important context.
| Section to inspect | Question to answer |
|---|---|
| Cover and offering summary | What security, share count and price terms does this version describe? |
| Capitalization and dilution | What denominator is appropriate for a post-offering per-share calculation? |
| Financial statements and notes | What period, unit, accounting basis and adjustments apply to each figure? |
| Business and risk factors | What company-specific dependencies and risks are actually disclosed? |
| Ownership and governance | How do economic ownership and voting rights compare? |
For the general process, the SEC’s IPO investor bulletin explains prospectuses and amendments. It also explains that effectiveness is not an endorsement of investment merits.
What these filing details mean for date and price searches
A proposed ticker identifies the intended symbol. It does not establish a first trading day. Likewise, a filing announcement is not a final pricing notice. Read the Anthropic IPO date guide for milestone distinctions and the IPO price guide for price definitions and valuation scenarios.
Review and revision record
: this guide was prepared from the June 1 and October 26 company announcements. No later amendment or final pricing document is claimed as reviewed. A future revision should identify its new source and explain which recorded terms changed.
Anthropic IPO filing questions
Has Anthropic filed an S-1?
Anthropic announced a confidential draft submission on June 1, 2026 and a public Form S-1 filing on October 26, 2026. These are separate milestones documented by the linked company announcements.
Does the announcement confirm an IPO valuation?
The reviewed October 26 company announcement does not establish an offering valuation. It says the share count and price range have not been determined.
Does this guide verify all the financial figures in the prospectus?
No. This review covers company-announced offering terms. Financial statement, ownership and governance figures require a separate review of the complete prospectus, with the relevant periods and document locations.