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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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PDF page 32

Printed filing page 21 · Extracted page text

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Table of Contents

Except as otherwise indicated, all information in this prospectus assumes: 

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the Preferred Stock Conversion will occur immediately prior to the completion of this offering; 

the Convertible Notes Conversion will occur immediately prior to the completion of this offering; 

the filing and effectiveness of our amended and restated certificate of incorporation in Delaware and 
the  effectiveness  of  our  amended  and  restated  bylaws  will  each  occur  immediately  prior  to  the 
completion of this offering; 

the Class F Stock Issuance will occur immediately prior to the completion of this offering;

no issuance of shares of Class E common stock prior to the completion of this offering;

a  10-for-one  forward  split  of  our  Class  A  common  stock  and  Class  N  common  stock  effected  on 
September  17,  2026,  including  a  proportional  increase  in  the  authorized  shares  of  our  capital  stock, 
with  all  share,  option,  RSU,  and  per  share  information  for  all  periods  presented  in  this  prospectus 
adjusted to reflect such forward split on a retroactive basis;

a one-for-1,000 reverse split of our Class T common stock effected on September 17, 2026;

no exercise of outstanding stock options or settlement of outstanding RSUs subsequent to September 
30, 2026, other than the RSU Settlement; and 

no exercise by the underwriters of their option to purchase up to an additional                     shares of our 
Class A common stock from us in this offering. 

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  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

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