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The documentS–1Anthropic, PBC26 OCT 2026 · 421 PP.
01The original SEC filingThe authoritative source, in your browser.SEC · HTML 02Download the saved filingThe complete 421-page document, optimized for downloading.PDF · 46 MB 03Download the full researchFindings, customer examples, calculations, and source references.Markdown

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Printed filing page 121 · Extracted page text

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Table of Contents

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our ability to compete with existing and new competitors in existing and new markets and offerings; 

our expectations regarding new and evolving markets, including our ability to expand our operations, 
customer  base,  and  revenue  internationally  and  to  adapt  our  models,  platform,  and  applications  to 
local language, regulatory, and market requirements in new jurisdictions; 

our  ability  to  identify,  execute,  and  integrate  beneficial  acquisitions,  investments,  and  strategic 
partnerships;

our ability to manage risk associated with our business, including risks arising from our public benefit 
corporation status and the role of the LTBT in our governance;

our  ability  to  protect  our  models,  platform,  applications,  and  systems  against  cybersecurity  threats, 
including nation-state and other sophisticated threat actors;

our expectations regarding the effects of existing and developing laws and regulations, including with 
respect  to  AI,  copyright,  privacy  and  data  protection,  and  export  controls,  economic  sanctions,  and 
other trade controls; 

our ability to maintain, protect, and enhance our intellectual property; 

our  ability  to  develop  and  protect  our  brand,  including  the  impact  of  safety,  security,  or  misuse 
incidents and of our public positions on AI policy and regulation; 

the increased expenses associated with being a public company; 

the  outcome  of  pending  or  future  litigation,  regulatory  proceedings,  and  governmental  enforcement 
actions, and their potential effects on our business, financial condition, and results of operations;

our  dividend  policy,  including  our  current  intention  not  to  pay  cash  dividends  and  to  retain  future 
earnings for use in our business;

the development and maintenance of an active trading market for our Class A common stock and the 
potential volatility of our stock price following this offering; and 

our anticipated uses of net proceeds from this offering.

We  caution  you  that  the  foregoing  list  may  not  contain  all  of  the  forward-looking  statements  made  in  this 
prospectus. 

We  have  based  the  forward-looking  statements  contained  in  this  prospectus  primarily  on  our  current 
expectations, estimates, forecasts, and projections about future events and trends that we believe may affect our 
business, financial condition, results of operations, and prospects. The outcome of the events described in these 
forward-looking statements is subject to risks, uncertainties and other factors, including those described in the 
section titled “Risk Factors” and elsewhere in this prospectus. Moreover, we operate in a very competitive and 
rapidly changing environment. New risks and uncertainties emerge from time to time and it is not possible for 
us to predict all risks and uncertainties that could have an impact on the forward-looking statements contained 
in  this  prospectus.  Although  we  believe  that  we  have  a  reasonable  basis  for  each  forward-looking  statement 
contained in this prospectus, we cannot assure you that the future results, events, and circumstances reflected 
in  the  forward-looking  statements  will  be  achieved  or  occur  at  all,  and  actual  future  results,  events,  and 
circumstances could differ materially from those described in the forward-looking statements. Accordingly, you 
should not place undue reliance upon forward-looking statements as predictions of future events. 

The forward-looking statements made in this prospectus relate only to our expectations as of the date on which 
the statements are made. We undertake no obligation to update any forward-looking statements made in this 
prospectus to reflect events or circumstances after the date of this prospectus or to reflect new information or 
the occurrence of unanticipated events, except as required by law. 

In addition, statements that “we believe” and similar statements reflect our beliefs and opinions on the relevant 
subject. These statements are based upon information available to us as of the date of this prospectus, and while 

121

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Find a section 16 starting points

Section links may begin before the exact paragraph cited in a finding. PDF numbers below use physical pages.

  1. Founders’ letterp. 3SEC
  2. Defined termsp. 12SEC
  3. Prospectus summaryp. 16SEC
  4. Risk factorsp. 38SEC
  5. Management’s discussion & analysisp. 144SEC
  6. Businessp. 190SEC
  7. Governancep. 254SEC
  8. Executive compensationp. 275SEC
  9. Related-person transactionsp. 293SEC
  10. Principal & selling stockholdersp. 299SEC
  11. Capital-stock rightsp. 303SEC
  12. Shares eligible for future salep. 318SEC
  13. Underwritingp. 327SEC
  14. Auditor change & expertsp. 345SEC
  15. Financial statements & notesp. 347SEC
  16. Part II & exhibit indexp. 413SEC

How this was made

Read in full.
Kept in context.

A snapshot of the filing dated , rather than a live record of later events.

3primary reviewers
421pages reviewed
43image instances checked

The review

Three primary reviewers read non-overlapping ranges of the complete main filing. All 43 embedded image instances were transcribed and visually reviewed, including the founders’ letter, charts, and customer case studies. Financial tables were also checked visually for dates, units, and column alignment.

A separate reviewer checked the draft’s calculations, accounting interpretations, and customer qualifications. An additional check covered the later merged findings. The result is 62 findings and 21 customer examples.

The boundary

Companion contracts and other exhibits named in the filing’s index are separate documents and were not independently reviewed. Customer outcomes, technical benchmarks, forecasts, and scientific priority claims remain attributed company or customer disclosures.

The numbers

Dollar figures are U.S. dollars. H1 means the six months ended June 30; Q2 means the three months ended June 30. The 2026 interim financial statements are unaudited. Our calculations show their inputs and are labeled separately from reported values.

Blank fields stay undisclosed. Figures with different periods, conditions, or potentially overlapping scopes are kept separate. An earlier tender price is not an IPO price.

What the evidence labels mean
Reported in filing
A company disclosure, with the period and accounting basis retained.
Company estimate / company claim
An estimate or assertion attributed to the company, with its uncertainty preserved.
Our calculation
A derived figure using cited inputs. It is not a separately reported company metric.
Customer example
A selected case study, with its measurement limits. It is not representative ROI.
Proposed / conditional
A status qualifier for an arrangement that is not yet effective or depends on stated conditions.

About updates. This edition is tied to the October 26, 2026 filing. Any later revision should identify its new source date and preserve the basis of earlier claims.

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A closer look at the filing

Anthropic · Form S-1PDF 1

Opening page 1…

Filed October 26, 2026. PDF is approximately 46 MB and opens only when requested. Section links may precede the exact cited paragraph.