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

Anthropic, PBC
Notes to Consolidated Financial Statements
(Continued)

infringement claim by any third party with respect to its technology. These indemnification obligations are not 
subject to a cap in certain instances. The term of these indemnification agreements is generally perpetual after 
the  execution  of  the  agreement.  The  maximum  potential  amount  of  future  payments  the  Company  could  be 
required  to  make  under  these  agreements  is  not  determinable  because  it  involves  claims  that  may  be  made 
against the Company in the future but have not yet been made. The Company has not incurred costs to defend 
lawsuits or settle claims related to these indemnification agreements.

Employee Benefit Plan

The  Company  has  a  qualified  defined  contribution  plan  under  Section  401(k)  of  the  Internal  Revenue  Code 
covering  eligible  employees.  A  portion  of  employee  contributions  are  matched  up  to  a  fixed  maximum  dollar 
amount per year per eligible employee. During the years ended December 31, 2023, 2024, and 2025, matching 
contributions related to the plan were $2 million, $7 million,  and $15 million, respectively, and during the six 
months ended June 30, 2025 and 2026 (unaudited), matching contributions were $7 million  and $20 million, 
respectively.

14. Segment and Geographical Information

The Company’s chief operating decision maker (“CODM”) is the leadership team consisting of the Company’s 
Chief  Executive  Officer  and  President.  The  Company  operates  its  business  in  one  operating  segment  and, 
therefore,  has  one  reportable  segment.  The  CODM  utilizes  financial  information  presented  on  a  consolidated 
basis  for  purposes  of  making  operating  decisions,  assessing  financial  performance,  and  allocating  resources 
including, but not limited to, the Company’s consolidated net loss. 

The CODM uses consolidated net loss as the measure of segment profit or loss. The CODM uses consolidated 
net  loss  to  evaluate  overall  financial  performance,  monitor  budget-to-actual  results,  assess  the  return  on  the 
Company’s  investments  in  compute  and  infrastructure,  personnel,  and  other  operating  activities  to  inform 
decisions  regarding  the  allocation  of  capital  and  personnel  resources  across  the  Company’s  operations.  There 
are no other expense categories regularly provided to the CODM that are not already included in the primary 
consolidated financial statements, except that stock-based compensation expense is separately provided to the 
CODM  as  a  discrete  component  within  the  Personnel  line  item.  Stock-based  compensation  expense  was $29 
million,  $192  million,  and $1.2  billion  for  the  years  ended December  31,  2023,  2024,  and 2025,  and $286 
million  and $2.2  billion  for  the  six  months  ended  June  30,  2025  and  2026  (unaudited),  respectively.  The 
CODM does not evaluate operating segments using asset information.

Long-lived  assets,  which  consist  of  property  and  equipment,  net,  and  operating  lease  right-of-use  assets,  by 
geographic  location  are  based  on  the  physical  location  of  the  assets.  As  of December  31,  2024,  December  31, 
2025, and June 30, 2026 (unaudited), approximately 94%, 95%, and 95%, respectively, of the Company’s long-
lived assets were located in the United States. 

15. Business Combinations

2026 Acquisition Activity (Unaudited)

On May 18, 2026, the Company acquired Stainless Software, Inc., to advance developer experience and agent 
connectivity. This acquisition was primarily funded by shares of the Company’s Class A common stock with fair 
value  of $295  million.  The  total  purchase  price  of $306  million  consisted  of $12  million  cash  and  cash 
equivalents, $65 million of intangible assets, $24 million of other net liabilities, and $253 million  of goodwill. 
Goodwill primarily relates to expected synergies and assembled workforce and is not expected to be deductible 
for U.S. federal income tax purposes.

During the first half of 2026, the Company completed other acquisition activity for aggregate consideration of 
$260 million.

2025 Acquisition Activity

On December 2, 2025, the Company acquired 100% of the issued and outstanding equity interests of Bun. The 
acquisition primarily provides additional workforce to support the Company’s developer ecosystem initiatives 

F-61

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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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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.