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

other executive officer, which are considered by our board of directors as it ultimately makes its determinations. 
Our people team provides further analysis and feedback as requested by our board of directors with regard to 
the compensation of our executives.

Role of Independent Compensation Consultant

In  connection  with  this  offering,  we  have  engaged  Semler  Brossy  Consulting  Group  LLC  as  an  independent 
compensation consultant to formalize our post-offering compensation programs and implement compensation 
arrangements that reflect our compensation philosophy described above.

Elements of Executive Compensation 

The key elements of our 2025 executive compensation program are summarized in the table below. 

Compensation 
Element 
Base Salary 

Form of 
Compensation 
Cash 

Guaranteed vs. 
At-Risk 
Guaranteed 

Long-Term 
Equity Incentive 
Program

Service-Based 
Options; RSUs 
with Service-
Based and 
Performance-
Based Vesting 
Conditions

At-Risk 

Other Benefits 

Other 

N/A 

Philosophy

Provide market-competitive fixed compensation to 
attract and retain key executives.
The value of option and RSU awards is correlated to 
our stock price, promoting sustainable long-term 
value creation. 

Multi-year service vesting schedule promotes 
retention, long-term ownership, and continuity of 
leadership. 
Aligned with market practices and serve to attract, 
motivate, and retain key talent. Intended to ensure the 
safety of our NEOs, enhance productivity, and 
minimize distractions. 

266

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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.
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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.