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The documentS–1Anthropic, PBC26 OCT 2026 · 421 PP.
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Table of Contents

Changes in 
Voting Power 
and Director 
Election and 
Removal 
Rights

Class T Sunset Time
Prior to the Class T Sunset Time, the LTBT, as the 
sole holder of Class T common stock, will generally 
have the authority to elect and remove the Class T 
directors, who constitute a majority of the 
authorized members of our board of directors. The 
share of our Class T common stock has no voting 
rights with respect to matters submitted to 
stockholders generally, except as set forth within 
our amended and restated certificate of 
incorporation, including with respect to the election 
of a majority of our board of directors or as required 
by law.

Following the Class T Sunset Time, if our Class F 
common stock remains outstanding, our Class A 
common stock and Class F common stock, voting 
together as a single class, will elect all of our 
directors. Because our Class F common stock is 
entitled to an aggregate number of votes equal to 
50.1% of the total voting power of our outstanding 
shares of capital stock, the Founder LLC would have 
the ability to determine the outcome of all matters 
submitted to a vote of stockholders generally, 
including the election of all directors.

If neither our Class T common stock nor Class F 
common stock remains outstanding, our Class A 
common stock would have the ability to determine 
the outcome of all matters submitted to a vote of 
stockholders generally, including the election of all 
directors.

Class F Sunset Time
Prior to the Class F Sunset Time, our Class F 
common stock will be entitled to an 
aggregate number of votes that equals 50.1% 
of the total voting power of our outstanding 
shares of capital stock as of the applicable 
record date and, together with our Class A 
common stock, voting together as a single 
class, will elect the directors other than the 
Class T directors and decide all other matters 
put to a vote of stockholders generally.

Immediately after the Class F Sunset Time, if 
our Class T common stock remains 
outstanding, the LTBT would continue to 
have the authority to elect and remove the 
Class T directors, who would constitute a 
majority of the authorized members of our 
board of directors. However, the LTBT will 
no longer need to comply with the 
procedures for nomination, removal or 
change in the Class T director designated as 
the Specified Class T Director. In such a case, 
our Class A common stock would elect and 
remove the remaining directors and decide 
all other matters put to a vote of stockholders 
generally.

If neither our Class T common stock nor 
Class F common stock remains outstanding, 
our Class A common stock would have the 
ability to determine the outcome of all 
matters submitted to a vote of stockholders 
generally, including the election of all 
directors.

For  more  information  about  our  governance  structure,  see  the  sections  titled  “Risk  Factors—Risks  Related  to 
our Governance Structure” and “Description of Capital Stock.” 

253

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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.