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

Base Salary 

Our  board  of  directors  generally  reviews  the  base  salaries  of  our  NEOs  twice  a  year.  The  factors  used  to 
determine base salary for our executives include market data for the role, level, and location, as well as internal 
parity (which, for our co-founder NEOs, includes considerations related to parity with our technical leadership). 

From  January  1,  2025  to  June  15,  2025,  the  annual  base  salary  for  each  of  Dr.  Amodei  and  Ms.  Amodei  was 
$600,000.  Effective  June  16,  2025,  the  annual  base  salary  for  each  of  Dr.  Amodei  and  Ms.  Amodei  was 
increased to $700,000. The increase in the executives’ cash compensation was intended to ensure competitive 
and  equitable  compensation  for  our  leaders.  In  particular,  the  salary  increases  recognized  their  ongoing 
leadership roles, while considering relative parity across executives, including our technical leadership. 

From  January  1,  2025  to  December  15,  2025,  the  annual  base  salary  for  Mr.  Rao  was  $700,000,  which  was 
increased  to  $850,000  effective  December  16,  2025.  The  salary  increase  was  based  on  market  data  for  Mr. 
Rao’s role and level, as well as internal parity for non-co-founder senior leaders who are not executive officers.

Long-Term Equity Incentive Program

Each year, our NEOs are eligible to receive equity awards under our 2021 Plan. By structuring the majority of 
our NEOs’ target total direct compensation payable in the form of equity that vests over a number of years, we 
create  incentives  for  our  NEOs  to  remain  employed  with  Anthropic  and  pursue  actions  that  will  benefit  our 
company and stockholders over the long term. 

On June 12, 2025, our board of directors granted 992,500 options (“2025 Options”) and 1,717,000 RSUs (“2025 
RSUs”)  to  each  of  Dr.  Amodei  and  Ms.  Amodei,  after  carefully  considering  several  factors,  including  each 
executive’s  experience,  skills,  responsibilities,  and  impact  to  the  company;  individual  and  company 
performance; and internal parity. 

The 2025 Options vested in equal monthly installments over a one-year period beginning on January 1, 2025, 
subject to the executive’s continuous service with the company through each vest date. The 2025 Options were 
granted with an exercise price equal to $2.38 per share. The 2025 RSUs vest on the first date upon which both a 
service-based  condition  and  a  performance-based  condition  are  satisfied.  The  service-based  condition  is 
satisfied as to 1/12th of the total 2025 RSUs on February 20, 2026, and on each quarterly anniversary thereafter, 
subject to the executive’s continuous service with the company through each vest date. The performance-based 
vesting  condition  of  the  2025  RSUs  will  be  satisfied  upon  the  effectiveness  of  the  registration  statement  of 
which this prospectus forms a part. 

Perquisites and Other Executive Benefits

We  generally  provide  the  same  benefits  to  all  of  our  employees,  including  our  NEOs,  and  generally  do  not 
maintain  benefit  plans  that  cover  only  executive  officers  or  provide  perquisites  or  personal  benefits  to  our 
NEOs.  However,  we  do  provide  certain  travel  and  security  benefits  to  some  of  our  NEOs.  These  benefits  are 
described in more detail below. Our board of directors believes these benefits are reasonable and necessary, and 
for  the  benefit  of  our  company.  These  benefits  are  intended  to  promote  the  productivity  of  our  executives,  in 
addition  to  ensuring  their  personal  health,  safety,  and  security.  The  aggregate  incremental  cost  of  providing 
these benefits to our NEOs is disclosed in the “All Other Compensation” column of the Summary Compensation 
Table. 

Travel 

We  maintain  a  Travel  and  Expense  Policy  (the  “Travel  Policy”),  which  outlines  guidelines  and  allowances  for 
executive  travel  and  expenses,  recognizing  the  needs  and  responsibilities  of  our  senior  leadership  team.  The 
Travel Policy governs all business-related travel and expenses for our executives, except to the extent benefits 
are  provided  through  a  security  program  authorized  and/or  approved  by  our  board  of  directors.  Dr.  Amodei 
and Ms. Amodei are entitled to certain enhanced travel benefits recommended by the security studies on which 
their security program is based (discussed in the section below titled “Security Services”). The Travel Policy is 
reviewed  annually  by  our  management  team  to  ensure  it  remains  appropriate  and  aligned  with  company 
objectives and industry standards. To the extent required by the relevant tax laws, the value of any personal use, 
including any personal elements of business trips, will be treated as taxable compensation to the executive, and 

267

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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.