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Elanco Animal Health

elan · NYSE Healthcare
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FY2023 Annual Report · Elanco Animal Health
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MAKING
LIFE
BETTER
FOR ANIMALS,
MAKES
LIFE
BETTER.

2023 Annual Report

2

2023 Annual Report

About Elanco

A Global Leader  
Transforming 
Animal Care

$4.42B  REVENUE

$979M  ADJUSTED EBITDA1

$0.92  ADJUSTED EPS1

We provide medicines 
and services to help 
veterinarians and pet 
owners help pets live 
longer, healthier, more 
active lives and help 
farmers improve animal 
health and wellbeing,  
and raise livestock  
more sustainably.

Reaching the World’s 
Animals
6 

200+ 

9

Core Species

Brands

Pet health & farm 
animals: Dogs, 
cats, cattle, swine, 
poultry, and aqua

sold for pets &  
farm animals

Blockbusters

>$100M in  
annual revenue

18

55%

Manufacturing 
sites

 Revenue from  
outside the U.S.

90+

Countries 
served

~9,300

Employees 
worldwide

~2,000

Sales 
Representatives

~1,000

R&D 
Employees

Diversified Portfolio

of pet health and livestock products

1Non-GAAP financial measure. See inside of back cover for further information.

*Facts and figures shown are as of Dec. 31, 2023.

2023 Annual Report

3

LETTER 
FROM
OUR CEO

Dear Fellow Shareholders, 
As Elanco enters its 70th year, we are closer than ever to 
bringing to life our vision and delivering compelling long-term 
value. We have set a strong foundation for success as we 
enter our next era of growth and innovation rooted in our 
steadfast commitment to delivering consistent high-impact 
innovation. Over the past five years, since our IPO, we have 
established ourselves as an independent animal health 
industry leader that can reach the world’s animals through 
our diverse, durable product portfolio focused on delivering 
value to our customers and the animals in their care.  

As one of the longest-standing brands in our industry, we are 
at the forefront of innovation, serving veterinarians, farmers, 
and pet owners. In the past year, Elanco has returned to full-
year revenue growth, significantly increased the contribution 
from new products, and successfully paid down debt. We 
have momentum in many parts of our business and are 
making strategic tradeoffs with the expectation of delivering 
increased value in high-potential opportunities, notably global 
pet health and livestock sustainability.

Elanco’s significant progress in 2023 was anchored by our 
strategic Innovation, Portfolio, and Productivity framework. 
Let’s take a closer look at the momentum we’ve built within 
each pillar of our strategy:

Innovation

In 2023, we made strides in advancing our pipeline, marked 
by the conditional approval and launch of our Canine 
Parvovirus Monoclonal Antibody (CPMA) and the successful 
approval and launch of Adtab, a new over-the-counter oral 
parasiticide for pets in Europe.

Additionally, we successfully submitted three late-stage 
potential blockbuster products: Zenrelia, Credelio Quattro, 
and Bovaer. These three differentiated products will initially 
be focused on the U.S. market, but we expect globalization 

4

2023 Annual Report

of strategic products over time. We’re encouraged by the 
completed submissions for Zenrelia in nine additional markets, 
including the EU, U.K., and Australia.

Importantly, our team has diligently delivered targeted lifecycle 
management and extended the life and value of existing 
brands, helping stabilize and protect our core revenue. In 2023, 
we exceeded our innovation revenue expectations by doubling 
innovation from 2022 and remain on track to deliver our 
anticipated $600-$700 million contribution by 2025. 

Building on this momentum, we are also advancing a pipeline 
of development projects with expected differentiated profiles 
and blockbuster potential. This next wave of innovation has the 
opportunity to contribute meaningful growth and earnings in 
the second half of the decade, further solidifying our position 
as a leader in animal health. Our journey in innovation is a 
testament to our commitment to improving animal health and 
our relentless pursuit of excellence.

Portfolio 

Importantly, Elanco has taken disciplined actions to 
concentrate our portfolio on the most significant value-creation 
opportunities in pet health and livestock sustainability.

The total company return to constant currency revenue growth 
of 1% in 2023 can be attributed to the stabilization of our core 
portfolio, facilitated by enhanced commercial capabilities, our 
global omnichannel approach, and the contribution of new 
products. Price growth was 4%, an increase over our previous 
2% average, with contribution balanced across Pet Health and 
Farm Animal. Our focused investment in critical commercial 
capabilities and expanded share of voice is expected to 
maximize the value of our current portfolio and anticipated 
launches in 2024 and beyond. 

We remain committed to investing in high-value commercial, 
R&D, and manufacturing opportunities to drive growth further.

  
As we enter our 70th year as a company, we are humbled 
by the opportunity to serve our customers around the 
globe — farmers, veterinarians, pet owners, and the 
animals in their care — and we are deeply grateful for the 
determination and delivery of our Elanco team worldwide.

We appreciate your investment in Elanco and look forward 
to our continued momentum as we enter our next era of 
innovation and growth.

Sincerely,

Jeff Simmons
President & CEO of Elanco Animal Health

Productivity  

Improving cash conversion remains a critical priority across 
our organization. We’ve driven cross-functional efforts to 
enhance net working capital performance, particularly on 
balance sheet inventory management. This focus resulted 
in gradual improvement in the second half of 2023, with 
inventory becoming a source of cash in the fourth quarter. 

In 2023, we paid down $76 million of gross debt, ending 
with a net leverage ratio of 5.6x. Importantly, we reached 
a significant operational milestone by completing our ERP 
system integration, freeing up an estimated $100 million for 
debt paydown in 2024.

This momentum continues as we made strategic decisions 
to sharpen our focus on our highest potential opportunities. 
In the first quarter of 2024, we announced that we 
entered into an agreement to sell our aqua business to 
Merck Animal Health for approximately $1.3 billion in 
cash. The proceeds from this transaction combined with 
improved free cash flow from the business, will accelerate 
deleveraging with net debt to adjusted EBITDA expected in 
the high-3x to low-4x range by the end of 2025.  

Elanco’s Long-term Value Proposition

We believe Elanco has extraordinary potential in 
the attractive animal health space. Our industry has 
demonstrated incredible resilience, with growth of 5% over 
the last 5 and 10 years and growth observed each year for 
the past two decades.

Elanco is set to bring six potential blockbuster products 
to the market by 2025. In attractive markets, these 
differentiated products are expected to be margin-
accretive over time. We expect growth will lead to improved 
cash conversion and increased debt paydown, further 
strengthening our financial position. The momentum in 
our business underscores Elanco’s compelling value 
proposition for customers, investors, and stakeholders.

2023 Annual Report

5

 
Board of Directors
R. David Hoover
Chairman, Elanco Animal Health
Former CEO, Ball Corporation

Kapila Kapur Anand
Retired Partner, 
KPMG LLP

John Bilbrey
Former CEO and President, 
The Hershey Company

William Doyle
Executive Chairman, 
Novocure Ltd.

Art Garcia
Former CEO,
Rider System, Inc.

Michael Harrington
Former General Counsel,
Eli Lilly and Company

Kirk McDonald
Former CEO, 
GroupM North America

Paul Herendeen
Former CFO,
Bausch Health Companies, Inc.

Denise Scots-Knight
CEO and Co-Founder,
Mereo BioPharma Group plc

Deborah Kochevar, D.V.M., 
Ph.D, DACVCP
Senior Fellow, The Fletcher School 
of Law and Diplomacy and Dean 
Emerita, Cummings School of 
Veterinary Medicine, Tufts 
University

Jeffrey Simmons
President and CEO,
Elanco Animal Health

Kathy Turner
Former Senior Vice President 
and Chief Marketing Officer, IDEXX

Lawrence Kurzius
Executive Chairman,
McCormick & Company, Inc.

Craig Wallace
President, C.S. Wallace 
Investments + Strategy

Elanco Executive Officers

Jeffrey N. Simmons
President and  
Chief Executive Officer

Tim Bettington
Executive Vice President, Corporate 
Strategy and Market Development

Dr. Ramiro M. Cabral
Executive Vice President,  
Elanco International 

Ellen de Brabander, Ph.D.
Executive Vice President, Innovation  
and Regulatory Affairs

David Kinard
Executive Vice President, Human 
Resources, Communications and 
Administration 

Grace McArdle
Executive Vice President,  
Manufacturing and Quality

Rajeev (Bobby) Modi
Executive Vice President, U.S.  
Pet Health and Global Digital  
Transformation

Shiv O’Neill
Executive Vice President, General  
Counsel and Corporate Secretary

José Manuel Correia de Simas
Executive Vice President, U.S. 
Farm Animal Business

Todd Young
Executive Vice President and Chief 
Financial Officer

left to right: D. Kinard, J. Simas, T. Young,  
E. de Brabander, J. Simmons, B. Modi, G. McArdle, 
S. O’Neill, R. Cabral, T. Bettington

UNITED STATES 
SECURITIES AND EXCHANGE COMMISSION 
Washington, D.C. 20549 

Form 10-K 

(cid:0) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE  

SECURITIES EXCHANGE ACT OF 1934 
For the fiscal year ended December 31, 2023 

Commission file number 001-38661 

Elanco Animal Health Incorporated 

(Exact name of Registrant as specified in its charter) 

INDIANA 
(State or other jurisdiction of 
incorporation or organization) 

82-5497352 
(I.R.S. Employer 
Identification No.) 

2500 INNOVATION WAY, GREENFIELD, INDIANA 46140 
(Address and zip code of principal executive offices) 

Registrant’s telephone number, including area code (877) 352-6261 

Securities registered pursuant to Section 12(b) of the Act: 

Title of each class 
Common Stock, no par value 

Trading Symbol(s) 
ELAN 

Name of each exchange on which 
registered 
New York Stock Exchange 

Securities registered pursuant to Section 12(g) of the Act: 

None. 

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  

Yes (cid:0)  No (cid:0)   

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.  

Yes (cid:0)  No (cid:0)  

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 
1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to 
such filing requirements for the past 90 days. 

Yes (cid:0) No (cid:0) 

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 
405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to 
submit such files). 

Yes (cid:0) No (cid:0) 

 
 
 
  
  
  
 
 
 
 
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company 
or an emerging growth company. See the definitions of a “large accelerated filer,” “accelerated filer,” “smaller reporting company” and "emerging 
growth company" in Rule 12b-2 of the Exchange Act.  

Large accelerated filer  ☒  
Non-accelerated filer  ☐  

Accelerated filer  ☐ 
Smaller reporting company  ☐ 
Emerging growth company  ☐ 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with 
any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. (cid:0) 

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its 
internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting 
firm that prepared or issued its audit report. (cid:0) 

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included 
in the filing reflect the correction of an error to previously issued financial statements. (cid:0)  

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation 
received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). (cid:0) 

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). 

Yes (cid:0) No (cid:0) 

Aggregate market value of the common equity held by non-affiliates computed by reference to the price at which the common equity was last sold 
as of June 30, 2023, the last business day of the Registrant’s most recently completed second fiscal quarter, was approximately $4.9 billion. The 
registrant has no non-voting common stock.  

The number of shares of common stock outstanding as of February 21, 2024 was 492,970,011. 

DOCUMENTS INCORPORATED BY REFERENCE 

Portions of the registrant's definitive proxy materials for its 2024 Annual Meeting of Shareholders are incorporated by reference into Part III hereof. 

 
  
 
 
 
 
 
  
 
 
ELANCO ANIMAL HEALTH INCORPORATED 
FORM 10-K 
FOR THE YEAR ENDED DECEMBER 31, 2023 

TABLE OF CONTENTS 

  BUSINESS 
  RISK FACTORS 
  UNRESOLVED STAFF COMMENTS 
  CYBERSECURITY 
  PROPERTIES 
  LEGAL PROCEEDINGS 
  MINE SAFETY DISCLOSURES 

MARKET FOR THE REGISTRANT'S COMMON EQUITY, RELATED 
STOCKHOLDER MATTERS, AND ISSUER PURCHASES OF EQUITY 
SECURITIES 

  (RESERVED) 

MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL 
CONDITION AND RESULTS OF OPERATIONS 

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET 
RISK 

  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA 

CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON 
ACCOUNTING AND FINANCIAL DISCLOSURE 

6 

19 

39 

40 

42 

42 

42 

43 

43 

45 

55 

56 

100 

  100 
  CONTROLS AND PROCEDURES 
  100 
  OTHER INFORMATION 
  DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT    101 

DIRECTORS, EXECUTIVE OFFICERS, AND CORPORATE 
GOVERNANCE 

  EXECUTIVE COMPENSATION 

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND 
MANAGEMENT AND RELATED STOCKHOLDER MATTERS 

CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND 
DIRECTOR INDEPENDENCE 

  PRINCIPAL ACCOUNTANT FEES AND SERVICES 

  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES 
  FORM 10-K SUMMARY 

101 

  101 
101 

101 

  102 

  103 
  106 
  107 

PART 1 

Item 1. 

Item 1A. 

Item 1B. 

Item 1C. 

Item 2. 

Item 3. 

Item 4. 

PART II 

Item 5. 

Item 6. 

Item 7. 

Item 7A. 

Item 8. 

Item 9. 

Item 9A. 

Item 9B. 

Item 9C. 

PART III 

Item 10. 

Item 11. 

Item 12. 

Item 13. 

Item 14. 

PART IV 

Item 15. 

Item 16. 

SIGNATURES 

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FORWARD-LOOKING STATEMENTS AND RISK FACTOR SUMMARY 

This Annual Report on Form 10-K (Form 10-K) includes forward-looking statements within the meaning of the federal 
securities laws. These forward-looking statements include, without limitation, statements concerning the impact on 
Elanco Animal Health Incorporated and its subsidiaries (collectively, Elanco, the Company, we, us or our) caused by 
the  integration  of  business  acquisitions,  expected  synergies  and  cost  savings,  product  launches,  global 
macroeconomic conditions, expectations relating to liquidity and sources of capital, our expected compliance with 
debt  covenants,  cost  savings,  expenses  and  reserves  relating  to  restructuring  actions,  our  industry  and  our 
operations,  performance  and  financial  condition,  and  including,  in  particular,  statements  relating  to  our  business, 
growth strategies, distribution strategies, product development efforts and future expenses.  

Forward-looking  statements  are  based  on  our  current  expectations  and  assumptions  regarding  our  business,  the 
economy and other future conditions. Because forward-looking statements relate to the future, by their nature, they 
are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict. As a result, our 
actual results may differ materially from those contemplated by the forward-looking statements. Important risk factors 
that  could  cause  actual  results  to  differ  materially  from  those  in  the  forward-looking  statements  include  regional, 
national or global political, economic, business, competitive, market and regulatory conditions, including but not limited 
to the following: 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

operating in a highly competitive industry;  

the success of our research and development (R&D) and licensing efforts;  

the impact of disruptive innovations and advances in veterinary medical practices, animal health technologies 
and alternatives to animal-derived protein;  

competition from generic products that may be viewed as more cost-effective; 

changes in regulatory restrictions on the use of antibiotics in farm animals;  

an outbreak of infectious disease carried by farm animals; 

risks related to the evaluation of animals; 

consolidation of our customers and distributors; 

the  impact  of  increased  or  decreased  sales  into  our  distribution  channels  resulting  in  fluctuation  in  our 
revenues; 

our dependence on the success of our top products; 

our ability to complete acquisitions and divestitures and successfully integrate the businesses we acquire; 

our  ability  to  implement  our  business  strategies  or  achieve  targeted  cost  efficiencies  and  gross  margin 
improvements;  

•  manufacturing problems and capacity imbalances; 

• 

• 

• 

• 

• 

• 
• 

• 

• 

• 

fluctuations in inventory levels in our distribution channels 

risks related to the use of artificial intelligence (AI) in our business; 

our dependence on sophisticated information technology and infrastructure and the impact of breaches of 
our information technology systems; 

the impact of weather conditions, including those related to climate change, and the availability of natural 
resources;  

demand,  supply  and  operational  challenges  associated  with  the  effects  of  a  human  disease  outbreak, 
epidemic, pandemic or other widespread public health concern;  

the loss of key personnel or highly skilled employees; 
adverse effects of labor disputes, strikes and/or work stoppages; 

the effect of our substantial indebtedness on our business, including restrictions in our debt agreements that 
limit our operating flexibility, changes in our credit ratings that lead to higher borrowing expenses and may 
restrict access to credit and changes in interest rates that may adversely affect our earnings and cash flows; 

changes in interest rates; 

risks related to the write-down of goodwill or identifiable intangible assets;  

4 

 
 
 
• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

the lack of availability or significant increases in the cost of raw materials; 

risks related to our presence in foreign markets; 

risks related to currency rate fluctuations; 

risks related to underfunded pension plan liabilities;  

our current plans not to pay dividends and restrictions on our ability to pay dividends; 

the potential impact that actions by activist shareholders could have on the pursuit of our business strategies; 

risks related to certain governance provisions in our constituent documents; 

risks related to tax expense or exposure; 

actions by regulatory bodies, including as a result of their interpretation of studies on product safety; 

the possible slowing or cessation of acceptance and/or adoption of our farm animal sustainability initiatives; 

the  impact  of  increased  regulation  or  decreased  governmental  financial  support  related  to  the  raising, 
processing or consumption of farm animals; 

risks related to the modification of foreign trade policy; 

the impact of litigation, regulatory investigations, and other legal matters, including the risk to our reputation 
and the risk that our insurance policies may be insufficient to protect us from the impact of such matters; 

• 

challenges to our intellectual property rights or our alleged violation of rights of others; 

•  misuse, off-label or counterfeiting use of our products; 

• 

• 

• 

• 

unanticipated safety, quality or efficacy concerns and the impact of identified concerns associated with our 
products;  

insufficient insurance coverage against hazards and claims; 

compliance with privacy laws and security of information; and 

risks related to environmental, health and safety laws and regulations. 

See "Item 1A. Risk Factors" in Part I of this Form 10-K for a further description of these and other factors. Although 
we have attempted to identify important risk factors, there may be other risk factors not presently known to us or that 
we presently believe are not material that could cause actual results and developments to differ materially from those 
made in or suggested by the forward-looking statements contained in this Form 10-K. If any of these risks materialize, 
or  if  any  of  the  above  assumptions  underlying  forward-looking  statements  prove  incorrect,  actual  results  and 
developments may differ materially from those made in or suggested by the forward-looking statements contained in 
this  Form  10-K.  We  caution  you  against  relying  on  any  forward-looking  statements,  which  should  also  be  read  in 
conjunction with the other cautionary statements that are included elsewhere in this Form 10-K. Any forward-looking 
statement made by us in this Form 10-K speaks only as of the date hereof. Factors or events that could cause our 
actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake 
no obligation to publicly update or to revise any forward-looking statement, whether as a result of new information, 
future developments or otherwise, except as may be required by law.  

5 

 
 
 
 
 
ITEM 1. BUSINESS 

PART I 

Overview 
Elanco Animal Health Incorporated and its subsidiaries (collectively, Elanco, the Company, we, us, or our) is a global 
leader in animal health, dedicated to innovating and delivering products and services to prevent and treat disease in 
farm animals and pets. We partner with farmers, pet owners, veterinarians and society to create value and help our 
customers improve the health of animals in their care, while also making a meaningful impact on the communities we 
serve.  Our  diverse,  durable  product  portfolio  is  sold  in  more  than  90  countries  and  serves  animals  across  many 
species, primarily: dogs and cats (collectively, pet health) and cattle, poultry, swine, sheep and aqua (collectively, farm 
animal). With this ability to reach the world's animals, we are committed to fulfilling our customer promise: To be your 
advocate  and  continually  earn  your  trust,  improving  the  health  of  animals  and  creating  value  through  innovative 
products,  expertise  and  service.  Through  our  customer  promise  and  our  commitment  to  excellence,  we  strive  to 
advance  the  well-being  of  animals,  people  and  the  planet,  enabling  us  to  realize  our  vision  of  Food  and 
Companionship Enriching Life. 
With a heritage dating back to 1954, we were formerly a business unit of Eli Lilly and Company (Lilly), becoming an 
independently incorporated company on September 18, 2018, and finalizing our separation from Lilly in March 2019. 
In August 2020 we acquired Bayer Animal Health, marking the largest acquisition in industry history. This acquisition 
enabled us to become a more diverse, durable and global company with greater reach and scale. This acquisition 
also helped us expand our portfolio, creating a better balance between our pet health and farm animal products and 
between the U.S. and international markets, while also expanding our omnichannel presence in both the veterinary 
clinic and in retail markets, including e-commerce.   
We have continuously strengthened and expanded our three-pronged strategy: Innovation, Portfolio and Productivity, 
which remains our foundation for sustained growth and profitability. Over time, we expect to achieve revenue growth 
and improved profitability by delivering consistent, high-impact Innovation and prioritizing large market opportunities 
in major geographies. Our focused strategy prioritizes certain assets, including late-stage potential blockbusters, while 
maximizing life cycle management and refilling the early-stage pipeline to achieve a consistent flow of innovation. We 
also continue to optimize our diverse Portfolio to grow, leveraging our deep, established customer relationships and 
expanding product offerings. We will also continue to drive geographic and channel expansion, to reach more of the 
world's animals. Further, we continue to focus on our strategic Productivity initiatives to improve earnings and cash 
flows.   
In addition, we continue to enhance our approach to sustainability and environmental, social and governance (ESG) 
principles,  focusing  on  the  four  interconnected  pillars  below,  which  we  refer  to  as  Elanco's  Healthy  Purpose™, 
designed to create a meaningful impact today and for years to come: 

Healthier Animals:  We  are  helping  pets  and  farm  animals  live  healthy,  high-quality  lives  by  continuously 
expanding our portfolio and identifying new and innovative animal care products, practices and services to 
support animal health and well-being. 

Healthier People: We help improve people's lives and livelihoods by promoting animal companionship and 
enabling healthier and more plentiful and environmentally friendly production of meat, milk, fish and eggs.  

Healthier Planet: We are committed to minimizing our own environmental footprint, while leveraging product 
and service innovations to help our customers advance their own sustainability efforts. 

Healthier Enterprise: We are committed to growing our business with integrity and excellence with respect to 
all  stakeholders,  fostering  an  inclusive  culture  where  employees  can  make  a  difference  –  encouraging 
ownership, growth and well-being. 

Our  business  and  operations  are  exposed  to  and  are  impacted  by  various  global  macroeconomic  factors.  For 
example, in recent years we have been impacted by operating challenges across the globe due to the Russia-Ukraine 
conflict, conditions related to the COVID-19 pandemic, supply chain disruptions, a rising interest rate environment, 
foreign  currency  exchange  rate  volatility  and  inflationary  pressures,  among  others.  Continued  evolution  of  these 
conditions has led to economic slowdowns in certain countries and/or regions and volatility in consumer behavior. We 

6 

 
 
 
continue to monitor these factors and have worked with our customers, employees, suppliers and other stakeholders 
to  mitigate  their  impacts.  For  additional  information  on  these  macroeconomic  challenges  and  the  impact  on  our 
business, operations, financial condition and results, see "Item 7. Management's Discussion and Analysis of Financial 
Condition and Results of Operations" and "Item 1A. Risk Factors".  

Commercial Operations 

We operate our business as a single segment within the animal health industry, dedicated to fulfilling our vision of 
Food and Companionship Enriching Life. We advance this vision by offering a comprehensive portfolio of products in 
the pet health and farm animal product categories. Our reported revenue by product category was as follows: 

Contract manufacturing represents revenue from arrangements in which we manufacture products on behalf of a third 
party. 

International Operations 

Our operations are conducted globally. The United States (U.S.) is our largest market, accounting for 45% of our total 
revenue in 2023. By total revenue, China, Brazil and the United Kingdom (U.K.) are our largest markets outside the 
U.S. Emerging market economies are an important component of our growth strategy and will serve as a base upon 
which we expect to build our commercial and local innovation capabilities. Our reported revenue by geographic region 
was as follows: 

7 

 
 
 
 
 
Products 

We have a diverse portfolio of products marketed under approximately 200 brands, including products for both pets 
and farm animals.  

Pet Health: Our pet health products help pets live longer, healthier and more active lives. Our global pet 
health portfolio is focused on parasiticides, vaccines and therapeutics. We have one of the broadest 
parasiticide  portfolios  in  the  pet  health  market  based  on  indications,  species  and  formulations,  with 
products  that  protect  pets  from  fleas,  ticks  and  internal  parasites.  Our  Advantage  Family  of  brands 
(Advantage™,  K-9  Advantix™,  Advocate™,  among  others)  and  Seresto™  products  are  over-the-
counter treatments for the prevention and elimination of fleas and ticks and complement our prescription 
parasiticide products, which include our Credelio Family of brands (Credelio™, Credelio Cat™, Credelio 
Plus™),  Interceptor  Plus™,  Drontal  Family  of  brands  (Doncit™,  Drontal™,  Drontal  Plus™)  and 
Trifexis™. Our vaccines portfolio provides differentiated prevention coverage for a number of important 
pet health risks and is available in the U.S. only. In therapeutics, we have a broad pain portfolio for dogs 
and cats across modes of action, indications and disease stages. Pet owners are increasingly treating 
osteoarthritis  in  their  pets,  and  our  Galliprant™  product  offers  a  convenient  at  home  solution  for  pet 
owners. Additionally, we have products that offer treatment for otitis (ear infections) and treatments for 
certain cardiovascular and dermatology indications. 

Farm Animal: Our farm animal products help farmers improve animal health and wellbeing and raise 
livestock more sustainably, delivering more food while using fewer resources and enhancing the integrity 
of the food supply. Our farm animal portfolio of products for cattle (beef and dairy), swine, poultry and 
aquaculture (cold and warm water) is primarily focused on: 1) efficiency and performance; 2) disease 
prevention  and  treatment;  3)  food  safety;  and  4)  sustainability.  Our  products  include  medicated  feed 
additives, injectable antibiotics, vaccines, insecticides and enzymes, among others. Key farm animal 
products Rumensin™, Baytril™ and Experior™ are used extensively in cattle, while our Maxiban™ and 
Monteban™ products are valuable offerings for the control and prevention of intestinal disease in poultry. 

In 2023, our top five selling products and/or product families were our Advantage Family (cats and dogs), Seresto 
(cats and dogs), Rumensin (cattle), our Credelio Family (cats and dogs) and Maxiban (poultry). These products and 
product families combined to represent approximately 31% of our total revenue in 2023, although none represented 
more than 10% individually. Information regarding our principal products and product families, those that represented 
approximately 1% or more of our revenue in 2023, is as follows: 

Pet Health Products  

Product 

Advantage Family 

Description 
Family of topical applications that provide broad-spectrum protection against and 
treatment of fleas, ticks, mosquitoes, lice and biting flies. Certain products within 
the Advantage Family also provide protection against heartworm, lungworm and 
other  gastrointestinal  worm  infections,  including  roundworms,  whipworms  and 
hookworms. 

Atopica™  
Claro™ / 
Neptra™ 

Credelio Family 

Drontal Family 

  Controls atopic dermatitis. 

One-dose  treatment  for  otitis  externa  associated  with  susceptible  strains  of 
bacteria and yeast. 
Family of oral products that kills adult fleas, treats flea infestations and treats and 
controls tick infestations.  
Family  of  injectable  and  oral  tablet  dewormers  indicated  for  the  removal  of 
tapeworms, hookworms, roundworms and whipworms.  

Primary 
Species 

Cats, Dogs 

Dogs 

Dogs 

  Cats, Dogs 
  Cats, Dogs 
Dogs 

Galliprant  

  Controls pain and inflammation associated with osteoarthritis. 

Interceptor Plus 

Prevents heartworm disease and helps treat and control roundworm, hookworm, 
whipworm and tapeworm infections.  

Dogs 

Milbemax™ 
Onsior™  

  Cats, Dogs 
  Treats and controls parasitic infections due to common intestinal worms. 
  Controls postoperative pain and inflammation associated with certain surgeries.    Cats, Dogs 

8 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Product 

Seresto 

Trifexis 

TruCan™ 
(vaccines) 

Description 
Flea and tick collar with a patented low dose, slow-release technology that kills 
and repels fleas and ticks which may transmit vector-borne diseases and kills lice 
for up to 8 months.  
Prevents heartworm disease, kills fleas, helps prevent flea infestations and also 
helps treat and control hookworms, roundworms and whipworms. 
  Includes multiple products that collectively protect against distemper, adenovirus, 
parvovirus, corona, parainfluenza, leptospira canicola and other diseases. 

Farm Animal Products 

Product 

AviPro™ 
(vaccines) 

Baycox™   

Baytril  

Catosal™ /  
Comforta™ 

Clynav™ (1) 

Denagard™ 
Experior 

Hemicell  

Maxiban 

Monteban 

Pulmotil™ 

Rumensin 

Surmax™ / 
Maxus™ / Inteprity   

Description 
Includes multiple products that collectively protect against Newcastle disease, 
infectious bronchitis, fowl cholera, paramyxovirus Type 3, Bursal Disease, other 
diseases and foodborne pathogens like Salmonella. 
Oral treatment for control of coccidiosis in swine and clinical coccidiosis in young 
cattle. Attacks all stages of the parasite. 
Injectable  antibiotic  active  against  bacterial  respiratory  disease  pathogens. 
Baytril is a shared-class antibiotic. 
Injectable  for  prevention  or  treatment  of  deficiencies  of  vitamin  B12, 
Cyanocobalamin and phosphorous. 
Immunizes Atlantic  salmon  to  reduce  impaired  daily  weight  gain  and  reduce 
mortality  and  cardiac,  pancreatic  and  skeletal  muscle  lesions  caused  by 
pancreas disease following infection. 

  Treats swine dysentery. Denagard is a shared-class antibiotic. 
  Reduces ammonia gas emissions from an animal or its waste.  
  Enzyme supplement for poultry and swine feeds. 
Prevents  coccidiosis  in  broiler  chickens.  Maxiban  is  an  animal-only  antibiotic 
and an ionophore. 
Prevents coccidiosis in broiler chickens. Monteban is an animal-only antibiotic 
and an ionophore. 
Controls  swine  respiratory  disease  and  bovine  respiratory  disease  (BRD). 
Pulmotil is a shared-class antibiotic. 
Improves feed and milk production efficiency and increases rate of weight gain 
in cows. Also prevents and controls coccidiosis for cows, calves (excluding veal 
calves) and goats. Rumensin is an animal-only antibiotic and an ionophore. 
Prevents necrotic enteritis in broiler chickens. Surmax, Maxis and Inteprity are 
animal-only antibiotics. 

Primary 
Species 

Cats, Dogs 

Dogs 

Dogs 

Primary 
Species 

Poultry 

Cattle, 
Swine 
Cattle, 
Swine 
Cattle, 
Horses 

Aqua 

Swine 
Cattle 
Poultry, 
Swine 
Poultry 

Poultry 

Cattle, 
Swine 

Cattle 

Poultry 

(1) 

In February 2024 we announced the pending sale of our aqua business, which includes the Clynav product, to a subsidiary of Merck Animal 
Health. This sale is anticipated to close around mid-year 2024 pending regulatory approvals and subject to other closing conditions. See Note 
19. Subsequent Events to the consolidated financial statements for further information. 

A key element of our targeted value creation strategy is to drive future revenue growth through consistent, high-impact 
innovation. We continue to pursue the development of new chemical and biological molecules, as well as additional 
registrations and indications for current products. Our future growth depends on both our pipeline of new products, 
including new products we develop internally, develop with partners or that we are able to obtain through licenses or 
acquisitions, and the life cycle management of our existing products. In 2023, we received conditional approval from 
the U.S. Department of Agriculture (USDA) and launched our canine parvovirus monoclonal antibody treatment. This 
product is the first and only approved therapeutic solution to treat canine parvovirus, one of the most contagious and 
deadly  viruses  to  dogs,  if  not  treated. Additionally,  we  received  European  Medicines Agency  (EMA)  approval  and 
launched Adtab™, an over-the-counter monthly oral flea and tick product for dogs and cats. In 2021 through 2023, 
we  received  36  regulatory  approvals  in  total  for  new  products  in  major  geographies  and  have  delivered  many 
geographic expansion and life cycle management enhancements of existing products across both pet health and farm 
animal product categories.  

9 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Seasonality 

While many of our products are sold consistently throughout the year, we do experience seasonality in our pet health 
business due to increased demand for certain parasiticide product offerings in the first half of the year. For example, 
based upon historical results, approximately 75% and 60% of total annual revenue contributed by our higher-margin 
parasiticide products Seresto and Advantage Family, respectively, has occurred during the first half of the year, which 
is reflective of the flea and tick season in the Northern Hemisphere.  

Sales and Marketing 

Through our global sales force of over 2,000 sales representatives, our veterinary consultants and our key distributors, 
we  seek  to  build  strong  customer  relationships  and  fulfill  demand  for  our  pet  health  products  primarily  with 
veterinarians  and,  in  some  markets,  pet  owners,  and  for  our  farm  animal  products  primarily  with  farm  animal 
producers, veterinarians and nutritionists.  

Our  sales  representatives  visit  our  customers,  including  consultants,  veterinarians,  farm  animal  producers  and 
resellers, to inform, promote and sell our products and to support customers. Our veterinary consultants are available 
to provide scientific consulting focused on disease management and herd management, training and education on 
diverse  topics,  including  responsible  product  use,  and  generally  have  advanced  degrees  in  veterinary  medicine, 
veterinary  nutrition  or  other  agriculture-related  fields. These  direct  relationships  with  customers  allow  us  to  better 
understand their needs and provide us access to customer decision makers. Additionally, our sales representatives 
and veterinary consultants focus on collaborating with our customers to educate and support them on topics such as 
local disease awareness and to help them adopt new and more sophisticated animal health solutions, which may 
include  the  use  of  our  products.  In  addition,  our  sales  and  marketing  organization  provides  enhanced  value  by 
supporting farm animal producers to maximize their yields and reduce their costs. Furthermore, our expertise and 
data analytics help our customers analyze large amounts of health and production data in order to improve production 
efficiency and business performance.  

Customers 

We primarily sell our pet health products to third-party distributors and retailers, as well as directly to veterinarians 
who typically then sell our products to pet owners. We primarily sell our farm animal products to third-party distributors 
and directly to a diverse set of farm animal producers, including beef and dairy farmers as well as pork, poultry and 
aquaculture operations. With the acquisition of Bayer Animal Health, we expanded our omnichannel presence in both 
the veterinary clinic and in retail markets, including e-commerce. Certain top selling pet health products, including the 
Advantage  Family  and  Seresto,  are  offered  through  these  channels.  Our  largest  customer,  an  affiliate  of 
AmerisourceBergen Corp., is a third-party veterinary distributor and represented approximately 10% of our revenue 
in 2023. Our second largest customer, which is also a third-party distributor, represented approximately 6% of our 
revenue in 2023. No other customer represented greater than 5% of revenue during 2023.   

10 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Research and Development 

Our R&D efforts focus on delivering consistent, high-impact innovation. Our R&D organization is comprised of internal 
research, development, regulatory and external innovation collaborations and is led by highly experienced individuals 
with  deep  technical  knowledge  and  substantial  experience  in  discovery  research,  clinical  sciences,    technological 
development  and  regulatory  expertise  across  our  pet  health  and  farm  animal  product  categories.  We  believe  this 
approach will allow us to consistently progress our multi-year innovation projects toward regulatory approvals, while 
ensuring clear visibility to the innovation portfolio composition, value and progress. As of December 31, 2023, we 
employed over 1,000 employees in our global R&D and Regulatory Affairs organizations.  

Our  R&D  organization  utilizes  a  fully  integrated  global  network  of  labs,  service  centers  and  development  sites 
supported  by  a  network  of  third-party  partners.  We  also  have  a  significant  international  regulatory  operation  that 
manages new product submissions and ensures ongoing compliance for our existing commercial portfolio. Our global 
R&D sites are comprised of the following: 
R&D Centers of Excellence with a Global Scope 
Kemps Creek, Australia 
Monheim, Germany 

  Major Regional Centers for Key Markets 
  Sao Paulo, Brazil 
  Shanghai, China 

Speke, U.K. 
Fort Dodge, Iowa 
Greenfield, Indiana (R&D headquarters)     

Bangalore, India 

Basel, Switzerland 
Our R&D efforts focus on products that prevent and treat disease, improve and extend quality of life, improve the type 
of care received by animals and reduce the environmental impact of raising livestock. We seek to concentrate our 
resources  on  projects  that  match  our  strategy  and  where  we  can  leverage  our  broad  technical  and  commercial 
capabilities.  In  addition  to  efforts  to  support  our  existing  product  portfolio,  our  R&D  organization  focuses  on 
therapeutics, vaccines, monoclonal antibodies and parasiticides for pets, and pharmaceuticals, vaccines and livestock 
sustainability  projects  for  farm  animals,  including  a  focus  on  products  that  reduce  emissions  produced  by  farm 
animals.   
New product innovation is a core part of our business strategy. Our approach is a build, buy or partner strategy to 
develop compelling innovations that originate from our scientists and innovators, academia, agribusiness or external 
partners  including  human  pharmaceutical,  agriculture  and  biotechnology  organizations.  We  focus  our  R&D 
investments  on  projects  that  target  novel  product  introductions  with  new  active  ingredients,  as  well  as  products 
leveraging known active ingredients in new indications, presentations, combinations and species expansion.  

Our R&D efforts are balanced across species, development phases and technology platforms. We apply large and 
small molecule approaches for both farm animals and pets. Additionally, we employ various delivery strategies for 
products, including in-feed, injectable, oral and topical formulations developed in conjunction with our manufacturing 
team to assure production that leverages the capabilities within our internal and external manufacturing network.  

Portfolio investment decisions and prioritization are influenced by the probability of technical success, economic value, 
time to market, portfolio fit and balance. R&D expenses totaled $327 million in 2023, $321 million in 2022 and $369 
million in 2021. 

11 

 
 
 
 
   
 
 
 
 
 
 
 
 
 
Manufacturing and Supply Chain  
We have a global manufacturing network of 18 sites comprised of the following: 
  U.S. 
International 
  Clinton, Indiana 
Barueri, Brazil 
  Terre Haute, Indiana 
Prince Edward Island, Canada (1) 
  Fort Dodge, Iowa 
Chengdu, China 
  Elwood, Kansas 
Wusi, China 
  Kansas City, Kansas 
Huningue, France 
  Winslow, Maine 
Cuxhaven, Germany 
(1) 

  Kiel, Germany 
  Santa Clara, Mexico 
  Manukau, New Zealand 
  Banwol, South Korea 
  Chungli, Taiwan 
  Dong Nai, Vietnam (1) 

In February 2024 we announced the pending sale of our aqua business, which includes these manufacturing sites to a subsidiary of Merck 
Animal Health. This sale is anticipated to close around mid-year 2024 pending regulatory approvals and subject to other closing conditions. 
See Note 19. Subsequent Events to the consolidated financial statements for further information. 

Our  products  are  manufactured  both  at  the  sites  listed  above  that  are  operated  by  us  and  across  a  network  of 
approximately  140  contract  manufacturing  organizations  (CMOs).  Our  external  manufacturing  network  centrally 
governs and provides oversight to our global CMO relationships. We select CMOs based on several factors, including: 
(1) their ability to reliably supply products or materials that meet our quality standards at an optimized cost; (2) their 
access  to  specialty  products  and  technologies;  (3) capacity;  (4) financial  analyses;  and  (5)  local  presence.  Our 
external manufacturing network seeks to ensure that all CMOs we use adhere to our standards of manufacturing 
quality.  

Pharmaceutical production processes are complex, highly regulated and can vary widely from product to product. 
Shifting or adding manufacturing capacity can be a lengthy process requiring significant capital expenditures, process 
modifications and regulatory approvals. We have in the past invested in, and will continue to invest in, improvements 
to  our  existing  manufacturing  facilities  and  we  intend  to  continue  our  efficiency  improvement  programs  in  our 
manufacturing and supply chain organization. Our strong quality control and quality assurance programs are managed 
and coordinated globally and are in place at all internal manufacturing sites and external manufacturing hubs. We 
also regularly inspect and audit our internal sites and CMO locations.  
To maintain supply of our products, we use a variety of techniques, including comprehensive quality and planning and 
inventory management systems. We generally seek to develop an appropriate inventory strategy to fill market demand 
until  an  alternative  source  of  supply  can  be  implemented,  in  the  event  a  supplier  becomes  unable  to  provide  the 
required materials or product. However, various developments have led, and in the future may lead, to interruption or 
shortages in supply (for example, with U.S. cattle and pet vaccines in 2023) until we establish new sources, implement 
alternative processes, bring new manufacturing facilities online or pause or discontinue product sales in one or more 
markets. 

Raw Materials 

We  purchase  certain  raw  materials  and  active  pharmaceutical  ingredients  (API)  necessary  for  the  commercial 
production  of  our  products  from  a  variety  of  third-party  suppliers.  Principal  materials  used  in  our  manufacturing 
operations for key brands are typically available from more than one source; however, we may in some instances 
obtain  certain  raw  or  intermediate  materials  from  only  a  single  source.  Our  active  ingredients  for  biologics  are 
manufactured  primarily  in  internal  facilities,  while  chemically  derived  active  ingredients  are  sourced  from  external 
partners.  

Competition 

We  face  intense  competition  globally.  Competition  may  vary  depending  on  the  particular  region,  species,  product 
category  or  individual  product.  We  compete  principally  on  the  basis  of  product  quality,  price,  cost-effectiveness, 
promotional  effectiveness,  new  product  development  and  product  differentiation.  Certain  Elanco  products,  both 
existing  and  new,  may  compete  with  other  branded  or  generic  products  already  on  the  market  or  that  are  later 
developed  by  competitors.  When  competitors  introduce  new  products  with  ease-of-use,  therapeutic  or  cost 
advantages, our products may become subject to decreased sales and/or price reductions. 

Our primary competitors include animal health medicines and vaccines companies such as Zoetis Inc., Boehringer 
Ingelheim Vetmedica, Inc., the animal health division of Boehringer Ingelheim GmbH, and Merck Animal Health, the 

12 

 
 
 
  
animal health division of Merck & Co., Inc. We also face competition globally from manufacturers of generic drugs, as 
well  as  from  producers  of  nutritional  health  products,  such  as  DSM  Nutritional  Products AG  and  Danisco Animal 
Nutrition & Health, a subsidiary of International Flavors & Fragrances, Inc. There are also several start-up companies 
working in the animal health area. In addition, we compete with numerous other producers of animal health products 
throughout the world.  

Intellectual Property 

Our technology, brands and other intellectual property are important elements of our business. We rely on patent, 
trademark, copyright and trade secret laws, as well as regulatory exclusivity periods and non-disclosure agreements 
to  protect  our  intellectual  property  rights.  Our  policy  is  to  vigorously  protect,  enforce  and  defend  our  rights  to  our 
intellectual property. 

Our  product  portfolio  and  certain  product  candidates  enjoy  the  protection  of  approximately  6,500  patents  and 
applications, filed in over 90 countries, with a concentration in our major markets as well as other markets with strong 
patent laws and protections. While many of the patents and patent applications in our portfolio are the result of our 
own  work,  others  have  been  developed  in  collaboration  with  partners,  acquired  through  business  transactions  or 
licensed to us by third parties. A subset of our current products or product candidates are covered by patents and 
patent applications. 

Patents for individual products expire at different times based on the date of the patent filing (or occasionally, the date 
of patent grant) and the legal term of patents in the countries where such patents are obtained. Below is a summary 
of our recent and upcoming key patent expirations: 

•  Galliprant is protected by patents in the U.S., Europe, Canada, Japan and other key markets. While patents 
covering the active ingredient, grapiprant, expired in 2021 in all markets except Japan, patents covering the 
physical form of the active ingredient remain in force and will expire between 2026 and 2031, depending on 
jurisdiction.  Patent  coverage  relating  to  methods  of  use  and  formulation  will  expire  in  2035  in  most 
jurisdictions.   

•  Various  formulation  and  method  of  use  patents  encompass  our  spinosad  pesticide  product,  Trifexis.  The 
Trifexis formulation and method of use patents expired in September 2021 in the U.S., Canada and Australia. 
At this time, there are no indications of market entries for generic versions of Trifexis in these countries.  

•  The Seresto formulation patent will expire in the U.S. in September 2027. In Europe, the formulation patents 
will  expire  in  June  2025,  but  in  some  countries,  including  Spain  and  the  U.K.,  supplementary  protection 
certificates (SPCs) have been granted that expire in September 2026. 

•  Patent coverage for Milbemax/Interceptor chewable products extends through July 2024 in Europe and other 

key markets, and patent coverage for Interceptor Plus extends through October 2028. 

•  Certain Advantage Family products, including Advantage, K-9 Advantix and Advocate are off patent. 

•  The U.S. patent for Experior's active ingredient, lubabegron, is currently scheduled to expire in July 2024, 
with a pending patent term extension application that could extend protection until April 2025. While the patent 
term  extension  application  is  pending,  we  plan  to  request  available  interim  patent  extensions  to  maintain 
coverage. Coverage for Experior methods of use will expire in 2037 in the U.S. and 2035 in other key markets. 

Additionally,  many  of  our  vaccine  products,  including  the  TruCan  family  of  vaccines,  are  based  on  proprietary  or 
patented master seeds and formulations. We actively seek to protect our proprietary information, including our trade 
secrets  and  proprietary  know-how,  through  a  variety  of  means,  including  by  seeking  to  require  our  employees, 
consultants,  advisors  and  partners  to  enter  into  confidentiality  agreements  and  other  arrangements  upon  the 
commencement of their employment or engagement. 

We seek to file and maintain trademarks around the world based on commercial activities in most regions where we 
have,  or  desire  to  have,  a  business  presence  for  a  particular  product.  We  currently  maintain  more  than  14,500 
trademark  applications  and  registrations  in  major  regions,  primarily  identifying  products  dedicated  to  the  care  of 
livestock and pets. 

Regulatory Matters 

The sale of animal health products is governed by the laws and regulations specific to each country in which we sell 
our products. To maintain compliance with these regulatory requirements, we have established processes, systems 

13 

 
 
 
and dedicated resources with end-to-end involvement from product concept to launch and maintenance in the market. 
Our regulatory function is Elanco's key interface with the relevant authorities and is responsible for applying for and 
obtaining the necessary registrations and post-approvals, extending them if appropriate (e.g., developing claims in 
additional species), updating (e.g., changes to shelf-life or manufacturing site) and ongoing monitoring of safety and 
efficacy  through  our  global  pharmacovigilance  system.  In  this  way,  the  regulatory  function  ensures  registrations 
remain valid and our products can continue to be sold. To effectively do this, our regulatory function actively engages 
in dialogue with the relevant authorities regarding policies that relate to animal health products. In most of our markets, 
the relevant authority is separate from those governing human medicinal products. 

United States 

Food  and  Drug Administration  (FDA).  The  regulatory  body  that  is  responsible  for  the  regulation  of  animal  health 
pharmaceuticals in the U.S. is the Center for Veterinary Medicine (CVM), a division of the FDA. All manufacturers of 
animal health pharmaceuticals must demonstrate their products to be safe, effective and produced by a consistent 
method of manufacture as defined under the Federal Food, Drug and Cosmetic Act (FFDCA). The FDA’s basis for 
approving  a  new  animal  drug  application  is  documented  in  a  Freedom  of  Information  Summary.  Post-approval 
monitoring  of  products  is  required  by  law,  with  reports  being  provided  to  the  CVM’s  Office  of  Surveillance  and 
Compliance. Reports of product quality defects, adverse events or unexpected results are maintained and submitted 
in  accordance  with  the  law. Additionally,  as  part  of  the  drug  experience  report,  we  are  required  to  submit  all  new 
information pertaining to the safety or effectiveness of a product, regardless of the source. 

USDA. The regulatory body in the U.S. for veterinary biologicals is the USDA. The Center for Veterinary Biologics 
within the Animal and Plant Health Inspection Service in the USDA is responsible for the regulation of animal health 
biologicals, which includes but is not limited to vaccines, bacterins, allergens, certain antibodies, antitoxins, toxoids, 
immunostimulants,  certain  cytokines,  antigenic  or  immunizing  components  of  live  microorganisms  and  diagnostic 
components  of  natural  or  synthetic  origin,  or  that  are  derived  from  synthesizing  or  altering  various  substances  or 
components of substances such as microorganisms, genes or genetic sequences, carbohydrates, proteins, antigens, 
allergens  or  antibodies. All  manufacturers  of  animal  health  biologicals  must  show  their  products  to  be  pure,  safe, 
effective and produced by a consistent method of manufacture as defined under the Virus Serum Toxin Act. Post-
approval monitoring of products is also required. Reports of product quality defects, adverse events or unexpected 
results are maintained and submitted in accordance with the agency requirements. 

Environmental Protection Agency (EPA). The main regulatory body in the U.S. for veterinary pesticides is the EPA. 
The EPA’s Office of Pesticide Programs is responsible for the regulation of most pesticide products applied to animals 
in accordance with a memorandum of understanding between the FDA and the EPA for products that are subject to 
regulation  under  both  the  FFDCA  and  the  Federal  Insecticide,  Fungicide  and  Rodenticide  Act  (FIFRA).  All 
manufacturers of animal health pesticides must show their products will not cause unreasonable adverse effects to 
humans  or  the  environment  as  stated  in  the  act.  Within  the  U.S.,  individual  state  pesticide  authorities  must  also 
approve  pesticide  products  that  have  been  approved  by  the  EPA  before  distribution  in  that  state.  Post-approval 
monitoring of products is required, with reports provided to the EPA and some state regulatory agencies. 

European Union (EU) 

The EMA is a centralized agency of the EU responsible for the scientific evaluation of many of the Veterinary Medicinal 
Products  (VMP)  developed  by  pharmaceutical  companies  for  use  in  the  EU. The  agency  has  a  veterinary  review 
section distinct from the medical review section for human products. The Committee for Veterinary Medicinal Products 
(CVMP) is responsible for scientific review of the submissions for VMP, including immunological products. If the CVMP 
concludes that all requirements for quality, safety and efficacy are met and the product benefits outweigh the risks, it 
issues a positive opinion that is forwarded to the European Commission, which takes the final decision following the 
European  comitology  procedure. The  centralized  marketing  authorization  is  valid  in  all  of  the  EU  and  in  Northern 
Ireland. All countries that are not part of the EU but belong to the European Economic Area (EEA), such as Norway, 
Iceland and Liechtenstein, have been part of the scientific assessment done by the CVMP. These countries issue a 
national marketing approval in accordance with the European Commission's decision.  

If approval is sought for products that either cannot or do not need to follow the centralized procedure, approval can 
also  be  achieved  by  national  approval  in  an  EEA  country  agency.  This  national  authorization  can  be  mutually 
recognized  by  other  EEA  countries/EU  member  states  (Mutual  Recognition  Procedure).  In  addition,  national  and 
mutual recognition can be done in a combined procedure (Decentralized Procedure). 

14 

 
 
 
A  series  of  regulations,  directives,  guidelines,  EU  Pharmacopeia  Monographs  and  other  legislation  provide  the 
requirements  for  approval  in  the  EU.  In  general,  these  requirements  are  similar  to  those  in  the  U.S.,  requiring 
demonstrated evidence of purity, safety, efficacy and consistency of manufacturing processes. 

The European Food Safety Authority (EFSA) is the agency of the EU that provides scientific advice and communicates 
with respect to existing and emerging risks associated with the food chain. Based on EFSA’s mandate, it evaluates 
applications for feed additives, including coccidiostats, enzymes and several nutritionals for animals. 

The European Chemicals Agency (ECHA) is the agency of the EU for the safe use of chemicals. Based on the ECHA’s 
mandate, it conducts the evaluation of biocides for the EU. 

We are also governed by each of the national regulatory bodies in the EU. 

United Kingdom 

The Veterinary Medicines Directorate (VMD) is the main regulatory body in the U.K. responsible for regulating and 
controlling  veterinary  pharmaceuticals. A  trade  agreement  between  the  U.K.  and  the  EU  includes  regulatory  and 
customs cooperation mechanisms, as well as provisions supporting open and fair competition. The Northern Ireland 
protocol, which is part of the trade deal, requires that VMD follow EU rules in Northern Ireland. Laws applying to the 
rest of the U.K. remain largely aligned. 

Brazil 

The Ministry of Agriculture, Livestock Production and Supply (MAPA) is the regulatory body in Brazil that is responsible 
for the regulation and control of pharmaceuticals, biologicals and medicinal feed additives for animal use. MAPA’s 
regulatory activities are conducted through the Secretary of Agricultural Defense and its Livestock Products Inspection 
Department.  In  addition,  regulatory  activities  are  conducted  at  a  local  level  through  the  Federal  Agriculture 
Superintendence.  These  activities  include  the  inspection  and  licensing  of  both  manufacturing  and  commercial 
establishments for veterinary products, as well as the submission, review and approval of pharmaceuticals, biologicals 
and medicinal feed additives. MAPA is one of the most active regulatory agencies in Latin America, having permanent 
seats at several international animal health forums, such as Codex Alimentarius, World Organization for Animal Health 
and Committee of Veterinary Medicines for the Americas.  

China  

The Ministry of Agriculture and Rural Affairs (MARA) is the regulatory body that is responsible for the regulation and 
control of pharmaceuticals, biologicals, disinfectants, medicinal feed additives, pesticide and feed/feed additives for 
animal use. There are three organizations under the MARA that regulate animal health: 

The Institute of Veterinary Drug Control (IVDC) is responsible for the evaluation of new applications, renewals, 
variations,  manufacturers,  quality  methods  and  tissue  residue  methods  for  pharmaceuticals,  biologicals, 
disinfectants and medicinal feed additives. 

The feed/feed additive office is responsible for the registration and renewal of feed and feed additives. 

The pesticide bureau is responsible for the registration and renewal of pesticide products. 

Rest of World 

Country-specific  regulatory  laws  typically  have  provisions  that  include  requirements  for  certain  labeling,  safety, 
efficacy and manufacturers’ quality control procedures (to assure the consistency of the products), manufacturing site 
standards, as well as company records and reports. Many other countries’ regulatory agencies either refer to some 
or all of the requirements of the U.S. or EU and may have additional specific local requirements. Most authorities also 
consider the standards set by international animal health entities, including the World Organization for Animal Health, 
Codex Alimentarius and the International Cooperation on Harmonization of Technical Requirements for Registration 
of Veterinary Medicinal Products (VICH).  

Joint FAO/WHO Expert Committee on Food Additives. The Joint FAO/WHO Expert Committee on Food Additives 
is an international expert scientific committee that is administered jointly by the Food and Agriculture Organization 
of  the  United  Nations  (FAO)  and  the  World  Health  Organization  (WHO).  It  provides  a  risk  assessment/safety 
evaluation  of  residues  of  veterinary  drugs  in  animal  products,  exposure  and  residue  definition  and  maximum 
residue limit proposals for veterinary drugs. Similarly, the Joint FAO/WHO Meeting on Pesticide Residues (JMPR) 
is an international expert scientific group administered jointly by the FAO and WHO. JMPR reviews residues and 

15 

 
 
 
analytical  aspects  of  the  pesticides,  estimates  the  maximum  residue  levels,  reviews  toxicological  data  and 
estimates  acceptable  daily  intakes  for  humans  of  the  pesticides  under  consideration.  Elanco  works  with  this 
committee to establish acceptably safe levels of residual substances in food-producing animals after treatment 
with veterinary drugs or pesticides. This in turn enables the calculation of appropriate withdrawal times for our 
products prior to an animal entering the food chain. 

Advertising  and  Promotion  Review.  Promotion  of  animal  health  products  is  controlled  by  regulations  in  many 
countries.  These  rules  generally  restrict  advertising  and  promotion  to  those  claims  and  uses  that  have  been 
reviewed and endorsed by the applicable agency. We conduct a review of promotion material for compliance with 
the local and regional requirements in the markets where we sell animal health products. 

Import  and  Export  of  Products.  The  importation  and  exportation  of  animal  health  products  is  controlled  by 
regulations in many countries. In some jurisdictions this may include obtaining separate permits or licenses by 
product or by company or filing notices with applicable regulatory agencies prior to import or export of product. 
We  ensure  compliance  with  local,  regional  and  global  regulations  in  the  markets  where  we  import/export  our 
animal health products. 

International Cooperation on Harmonization of Technical Requirements for Registration of Veterinary Medicinal 
Products.  VICH  is  a  trilateral  (EU-Japan-U.S.)  program  launched  in  1996  aimed  at  harmonizing  technical 
requirements  for  veterinary  product  registration.  Several  other  countries  have  obtained  observer  status,  for 
example, Canada, New Zealand, Australia, South Africa and the U.K., or are linked to VICH on the basis of the 
VICH  Outreach  Forum,  a  VICH  initiative  with  the  main  objective  of  providing  a  basis  for  wider  international 
harmonization of technical requirements. In addition, the World Organization for Animal Health is an associate 
member of VICH. 

Environmental, Health and Safety 

In addition to the laws and regulations discussed above, we are also subject to various federal, state, local and foreign 
laws  and  regulations,  both  within  and  outside  the  U.S.,  relating  to  environmental,  health  and  safety  (EHS)  and 
sustainability matters. These laws and regulations govern matters such as the emission and discharge of hazardous 
materials into the ground, air or water; the generation, use, storage, handling, treatment, packaging, transportation, 
exposure to and disposal of hazardous and biological materials, including recordkeeping, reporting and registration 
requirements; and the health and safety of our employees. Due to our operations, these laws and regulations also 
require us to obtain and comply with permits, registrations or other authorizations issued by governmental authorities. 
These authorities can modify or revoke our permits, registrations or other authorizations and can enforce compliance 
through fines and injunctions. 

Certain environmental laws impose joint and several liability, without regard to fault, for clean-up costs related to the 
disposal or release of hazardous substances into the environment, including at third-party sites or offsite disposal 
locations, or at sites that are currently owned or operated (or were formerly owned or operated) where such a disposal 
or release occurred. Although our current reserves for environmental remediation obligations are not material, we 
could be subject to liability for the investigation and remediation of legacy environmental contamination caused by 
historical  industrial  activity  at  sites  we  own  or  on  which  we  operate.  We  are  also  monitoring  and  investigating 
environmental contamination from past industrial activity at certain sites. In connection with past divestitures, we have 
undertaken certain indemnification obligations that may require us, in the future, to conduct or finance environmental 
clean-ups  at  sites  that  we  no  longer  own  or  operate.  We  have  also  entered  into  indemnification  agreements  in 
connection  with  certain  of  our  past  acquisitions,  pursuant  to  which  we  are,  or  may  be,  indemnified  for  various 
environmental clean-ups. However, such indemnities are limited in both time and scope and may be further limited in 
the presence of new information or may not be available at all. 

In addition to clean-up actions brought by federal, state, local and foreign governmental entities, private parties could 
raise personal injury or other claims against us due to the presence of, or exposure to, hazardous materials on, from 
or otherwise relating to such a property. We have made, and intend to continue to make, necessary expenditures for 
compliance with applicable EHS laws and regulations.  

16 

 
 
 
Human Capital  
Employees. As of December 31, 2023, we employed approximately 9,300 full time employees and approximately 500 
fixed-duration employees, which are individuals hired for a pre-defined length of time (typically one to four years). 
Approximately 30% of our global workforce is U.S.-based, while slightly more than 10% of our global employees are 
members of unions, works councils, trade associations or are otherwise subject to collective bargaining agreements, 
primarily in Germany and the U.S.  

Our Culture. At Elanco, we are committed to fostering an inclusive culture where employees can make a difference, 
encouraging ownership, growth and well-being. We are committed to creating a culture built on the foundation of the 
three following values that guide our decisions and the four following behavioral pillars that guide our actions: 

Values: 

Integrity – Do the right thing in the right way. 

Respect – Respect people, our customers and the animals in their care. 

Excellence – Be accountable. Continuously improve. Deliver with discipline. 

Behavioral Pillars: 

Involve  –  We  seek  participation  and  input  to  gain  commitment  and  passionate  performance  and  create  an 
engaged  community.  We  act  with  humility  as  One  Elanco,  collaborating  for  the  best  outcomes  for  the  entire 
company. 

Deliver – We focus on the essential, build mastery and diligently deliver on our commitments to our colleagues, 
customers and shareholders. 

Own  –  We  are  accountable  and  empowered.  We  ask  questions  and  raise  concerns.  We  are  fully  invested  in 
Elanco's success. 

Innovate – We bring an innovative mindset that drives continuous improvement of our processes, products and 
services. 

At Elanco, this culture drives employee performance, and our employees are driven by these values and behavioral 
pillars. Leadership and employees are encouraged to evaluate performance with these values and behavioral pillars 
in mind.  
Inclusion, Diversity, Equity and Accessibility (IDEA). We are focused on delivering consistent high impact innovation 
and  maximizing  the  value  of  our  current  portfolio.  This  effort  is  enhanced  by  an  inclusive  workforce  with  diverse 
backgrounds, strengths and perspectives. Our efforts to strengthen IDEA are critical to sustaining a purpose-driven 
culture and strengthening our promises to our employees and customers.  
Formed in 2015, our Global Elanco Inclusion, Diversity, Equity and Accessibility Council (EIDEAC) serves as a catalyst 
for a culture where IDEA is embraced and recognized as business-result drivers. Within this framework, employee 
development  is  better  supported  and  opinions  and  diverse  backgrounds  are  embraced,  making  us  a  stronger 
company. Current EIDEAC focus areas include cultivating dynamic Employee Resource Groups, delivering a high 
quality annual Multi-Cultural Summit and supporting enterprise-wide aspirational goals for representation of women 
(globally) and people of color (U.S.) in leadership.  

Total  Rewards.  We  invest  in  our  workforce  by  offering  competitive  salaries,  incentives  and  benefits.  Our  pay  for 
performance philosophy  is  designed  to create  ownership  and  help  ensure  we attract  and  retain  talent,  as  well  as 
reward and recognize top-performing employees through merit increases and other rewards. We benchmark our total 
rewards annually to ensure our compensation and benefit programs remain competitive with our peers. Our benefits 
are one way we support our employees’ well-being and live up to our employee promise.  
Development. We offer our employees opportunities to advance their careers at Elanco and are passionate about 
equipping employees with skills and development opportunities to help them thrive while continually meeting the ever-
changing needs of our customers and other stakeholders in a dynamic and growing industry.  
Beyond professional growth and development, Elanco employees actively engage in initiatives aligned to Elanco's 
Healthy Purpose to advance the well-being of animals, people, the planet and our enterprise, enabling us to realize 
our vision of Food and Companionship Enriching Life. 

17 

 
 
 
Available Information  

Our website address is www.elanco.com. On our website, specifically within the "Investor Relations" section, we make 
available, free of charge, our annual, quarterly and current reports, including amendments to such reports, as soon 
as reasonably practicable after we electronically file such material with, or furnish such material to, the U.S. Securities 
and Exchange Commission (the SEC). In addition, the SEC maintains an internet site that contains reports, proxy and 
information statements, and other information regarding issuers, including Elanco, that file electronically with the SEC 
at www.sec.gov. 

Information  relating  to  corporate  governance  at  Elanco,  including  our  Corporate  Governance  Guidelines,  Code  of 
Conduct, Financial Code of Ethics, Articles of Incorporation, Bylaws, Committee Charters; information concerning our 
executive officers and members of our Board of Directors; and ways to communicate are also available on our website, 
www.elanco.com. We will provide any of the foregoing information without charge upon written request to Elanco’s 
Corporate Secretary, Elanco, 2500 Innovation Way, Greenfield, Indiana 46140. Information relating to shareholder 
services is also available on our website. 

Information contained on our website is not part of, or incorporated by reference, in this Form 10-K. 

18 

 
 
 
ITEM 1A. RISK FACTORS 

Our business, financial condition and results of operations are subject to various risks, including but not limited to the 
risks  described  below.  If  any  of  such  risks  actually  materializes,  our  business,  financial  condition  and  results  of 
operations could be materially adversely affected.  

Risks Related to the Animal Health Industry 

The animal health industry is highly competitive. 

The animal health industry is highly competitive. Our competitors include standalone animal health businesses, the 
animal health businesses of large pharmaceutical companies, specialty animal health businesses and companies that 
mainly produce generic products. Several start-up companies also compete in the animal health industry. We believe 
many of our competitors are conducting R&D activities in areas served by our products and in areas in which we are 
developing  products.  We  also  face  competition  from  manufacturers  of  drugs  globally,  as  well  as  producers  of 
nutritional health products. These competitors may have access to greater financial, marketing, technical and other 
resources. As  a  result,  they  may  be  able  to  devote  more  resources  to  developing,  manufacturing,  marketing  and 
selling  their  products,  initiating  or  withstanding  substantial  price  competition  or  more  readily  taking  advantage  of 
acquisitions  or  other  opportunities.  Further,  consolidation  in  the  animal  health  industry  could  result  in  existing 
competitors  realizing  additional  efficiencies  or  improving  portfolio  bundling  opportunities,  thereby  potentially 
increasing their market share and pricing power, which could lead to a decrease in our revenue and profitability. For 
example, many of our competitors have relationships with key distributors and, because of their size, an ability to offer 
attractive pricing incentives, which may negatively impact or hinder our relationships with these distributors. In addition 
to  competition  from  established  market  participants,  new  entrants  to  the  animal  health  medicines  and  vaccines 
industry could substantially reduce our market share, render our products obsolete or disrupt our business model. 

Competitive pressures could arise from, among other things, differences in safety and efficacy product profiles, limited 
demand growth or a significant number of additional competitive products being introduced into a particular market, 
price  reductions  by  competitors,  the  ability  of  competitors  to  capitalize  on  their  economies  of  scale,  the  ability  of 
competitors to produce or otherwise procure animal health products at lower costs than we can and the ability of 
competitors  to  access  more  or  newer  technology  than  we  can.  To  the  extent  any  of  our  competitors  are  more 
successful with respect to any key competitive factor, or we are forced to reduce, or are unable to raise, the price of 
any of our products in order to remain competitive, our business, financial condition and results of operations could 
be materially adversely affected.   

19 

 
 
 
Our R&D, acquisition and licensing efforts may fail to generate new products or expand the use of our existing 
products. 
Our future success depends on both our existing product portfolio and our pipeline of new products, including new 
products that we may develop internally or through joint ventures and products we are able to obtain through licenses 
or acquisitions. We commit substantial effort, funds and other resources to R&D, primarily through our own dedicated 
resources but also through collaborations with third parties. We also have acquired or partnered with a number of 
smaller animal health businesses, and we intend to continue to do so in the future. There are significant risks and 
uncertainties involved with the execution of these partnerships, many of which are outside our control. We may be 
unable to determine with accuracy when or whether any of our products now under development will be approved or 
launched, or we may be unable to develop, license or otherwise acquire product candidates or products.  Additionally, 
we  may  have  insufficient  access  to  capital  to  fund  such  investments.  In  addition,  we  cannot  predict  whether  any 
products,  once  launched,  will  be  commercially  successful  or  will  achieve  revenue  that  is  consistent  with  our 
expectations.  

The animal health industry is subject to regional and local trends and regulations and, as a result, products that are 
successful in some markets may not achieve similar success when introduced into other markets. Furthermore, the 
timing  and  cost  of  our  R&D  may  increase,  and  our  R&D  may  become  less  predictable  as,  among  other  things, 
regulations  applicable  to  our  industry  may  make  it  more  time-consuming  and/or  costly  to  research,  develop  and 
register products. If we are unable to generate new products or expand the use of our existing products, our business, 
financial condition and results of operations could be materially adversely affected.  

Further, as part of our development strategy, we often hire clinical research organizations to perform preclinical testing 
and  clinical  trials  for  drug candidates.  Clinical  trials and  procedures  are  inherently  uncertain  and  there  can  be  no 
assurance that these trials or procedures will be enrolled or completed in a timely or cost-effective manner or result 
in a commercially viable product or indication. Failure to achieve positive clinical trial and/or testing results could have 
a  material  adverse  effect  on  our  prospects.  Furthermore,  unfavorable  or  inconsistent  clinical  data  from  current  or 
future  clinical  trials  or procedures conducted  by  us,  our competitors or  third  parties,  or  perceptions regarding  this 
clinical  data,  could  adversely  affect  our  ability  to  obtain  necessary  approvals  and  the  market’s  view  of  our  future 
prospects.  

Disruptive  innovation  and  advances  in  veterinary  medical  practices,  animal  health  technologies  and 
alternatives to animal-derived protein could negatively affect the market for our products. 

The markets for our products are regularly impacted by the introduction and/or broad market acceptance of newly 
developed  or  alternative  products  that  address  the  diseases  and  conditions  for  which  we  sell  products,  including 
“green” or “holistic” health products, specially bred disease-resistant animals or replacements for meat, milk, eggs or 
fish from alternative natural or synthetic sources. For example, the market for our pet health therapeutics has been 
particularly  affected  by  innovation  in  new  molecules  and  delivery  formulations  in  recent  years.  Technological 
breakthroughs  by  others  may  render  our  products  obsolete  and  reduce  or  eliminate  the  market  for  our  products. 
Introduction or acceptance of competing animal health products and innovation or disruptive protein alternatives could 
materially adversely affect our business, financial condition and results of operations.  

Generic products may be viewed as more cost-effective than our products. 

We face competition from products produced by other companies, including generic alternatives to our products. We 
depend  on  patents  and  related  exclusivity  periods  to  provide  us  with  exclusive  marketing  rights  for  some  of  our 
products. Patents for individual products expire at different times based on the date of the patent filing (or sometimes 
the date of patent grant) and the legal term of patents in the jurisdictions where such patents are obtained. The extent 
of protection afforded by our patents varies from jurisdiction to jurisdiction and is limited by the scope of the claimed 
subject matter of our patents, the term of the patent and the availability and enforcement of legal remedies in the 
applicable jurisdiction. Some of our top products such as the Advantage Family, Rumensin, Maxiban, Denagard and 
Trifexis do not have patent protection. Other products are protected by patents that expire over the next several years. 
As the patents for a brand name product expire, competitors may begin to introduce generic or other alternatives, and 
as a result, we may face competition from lower-priced alternatives to many of our products. For further information, 
see "Item 1. Business – Intellectual Property." 

20 

 
 
 
 
Generic competitors are becoming more aggressive in terms of launching products before patent rights expire, and, 
because of attractive pricing, sales of generic products are an increasing percentage of overall animal health sales in 
certain  regions. Although  the  impact  of  generic  competition  in  the  animal  health  industry  to  date  has  not  typically 
mirrored that seen in human health, product pricing and the impact of generic competition in the future may more 
closely  mirror  human  health  as  a  result  of  changes  in  industry  dynamics,  such  as  channel  expansion,  customer 
consolidation, an increase in the availability and use of pet insurance and the potential for generic competition by 
established  animal  health  businesses.  If  animal  health  customers  increase  their  use  of  new  or  existing  generic 
products, we may be forced to lower our prices and/or provide discounts or rebates in order to compete with generic 
products.  In  such  event,  our  business,  financial  condition  and  results  of  operations  could  be  materially  adversely 
affected. 

Regulatory restrictions and bans on the use of antibiotics and productivity products in farm animals, as well 
as  changing  market  demand,  may  continue  to  negatively  affect  demand  for  certain  of  our  farm  animal 
products.  

Over the past few years, our operational results have been, and may continue to be, affected by regulations and 
changing market demand. In certain markets, including the U.S., sales of certain of our farm animal products have 
been negatively affected by an increase in consumer sentiment for proteins and dairy products produced without the 
use of antibiotics or other products intended to increase animal production.  

There are two classes of antibiotics used in animal health: shared-class, or medically important, antibiotics, which are 
used  to  treat  infectious  disease  caused  by  pathogens  that  occur  in  both  humans  and  animals;  and  animal-only 
antibiotics, which are used to treat infectious disease caused by pathogens that occur in animals only. Concerns that 
the use of antibiotics in farm animal production may lead to increased antibiotic resistance of human pathogens have 
resulted in increased regulation and changing market demand. In addition, countries in which we sell or plan to sell 
our  products,  such  as  the  U.S.,  France  and  Vietnam,  have  passed  restrictions  or  bans  on  antibiotic  use.  Other 
countries  have  placed  restrictions  or  bans  on  the  use  of  specific  antibiotics  in  certain  food-producing  animals, 
regardless of the route of administration (in feed or injectable). 

In  recent  years,  the  percentage  of  our  total  revenue  from  sales  of  shared-class  antibiotics  has  declined,  driven 
primarily by changing regulations in many markets, as well as changing market demand and our tiered approach to 
antibiotic stewardship, which has included removing growth promotion from labels and requiring veterinary oversight 
in  the  U.S.  and  other  markets.  Globally,  during  2023,  our  revenue  from  shared-class  antibiotics  decreased  7%  in 
comparison to 2022 and represented 10% of total revenue, while our revenue from animal-only antibiotics increased 
6% in comparison to 2022 and represented 15% of total revenue. In 2023, approximately 90% of our revenue from 
animal-only  antibiotics  resulted  from  the  sale  of  ionophores.  Ionophores  are  a  special  class  of  animal-only 
antimicrobials, and because of their animal-only designation, mode of action and spectrum of activity, their use has 
not to date been impacted by regulations or changing market demand in many international markets.  

The impact of changes in regulations and market preferences regarding the use of antibiotics in farm animals could 
have a material adverse effect on our business, financial condition and results of operations. If there is an increased 
public perception that consumption of food derived from animals that utilize our products poses a risk to human health, 
there may be a further decline in the production of those food products and, in turn, demand for our products. In 
addition,  antibiotic  resistance  concerns  will  likely  result  in  additional  restrictions  or  bans,  expanded  regulations  or 
public pressure to further reduce the use of antibiotics in farm animals, increased demand for antibiotic-free protein 
or changes in the market acceptance or regulatory treatment of ionophores, any of which could materially adversely 
affect  our  business,  financial  condition  and  results  of  operations.  In  addition,  our  revenue  has  been  impacted  by 
changing trade dynamics with China and other markets that restrict the use of productivity products, such as those 
containing  ractopamine,  in  farm  animals.  This  has  resulted  in  many  U.S.  food  producers  eliminating  their  use  of 
ractopamine  to  gain  access  to  those  markets.  Our  farm  animal  products  Optaflexx™  and  Paylean™  contain 
ractopamine. If more producers decide to access such markets or additional markets restrict the use of ractopamine 
or other productivity products, our business, financial condition and results of operations could be materially adversely 
affected. 

21 

 
 
 
An outbreak of infectious disease carried by farm animals could negatively affect the demand for, and sale 
and production of, our farm animal products. 

Sales of our farm animal products could be materially adversely affected by a general outbreak of infectious disease, 
or  an  outbreak  of  disease  carried  by  farm  animals,  which  could  lead  to  the  widespread  death  or  precautionary 
destruction of farm animals as well as the reduced consumption and demand for animal protein. In addition, outbreaks 
of disease carried by farm animals may reduce regional or global sales of particular animal-derived food products or 
result in reduced exports of such products, either due to heightened export restrictions or import prohibitions, which 
may reduce demand for our farm animal products due to reduced herd or flock sizes.  

In  recent  years,  outbreaks  of  various  diseases,  including  African  Swine  Fever,  avian  influenza,  foot-and-mouth 
disease, bovine spongiform encephalopathy (otherwise known as BSE or “mad cow” disease) and porcine epidemic 
diarrhea  virus  (otherwise  known  as  PEDV)  have  negatively  impacted  sales  of  our  animal  health  products.  The 
discovery of additional cases of any of these, or new diseases, may result in additional restrictions on animal protein, 
reduced herd or flock sizes or reduced demand for animal protein, any of which may have a material adverse effect 
on  our  business,  financial  condition  and  results  of  operations.  In  addition,  the  outbreak  of  any  highly  contagious 
disease near our main production sites could require us to immediately halt production of our products at such sites 
or force us to incur substantial expenses in procuring raw materials or products elsewhere. 

Our  R&D  relies  on  evaluations  of  animals,  which  may  become  subject  to  bans,  additional  restrictive 
regulations or increased attention from activism movements. 

As  an  animal  health  company  dedicated  to  innovating  and  delivering  products  and  services  to  prevent  and  treat 
disease in animals, we are required to evaluate the effect of our existing and new products in animals in order to 
register such products. Animal testing in certain industries has been the subject of controversy and adverse publicity. 
Some  organizations  and  individuals  have  attempted  to  ban  animal  testing  or  encourage  the  adoption  of  new 
regulations  applicable  to  animal  testing.  To  the  extent  the  activities  of  such  organizations  and  individuals  are 
successful, our R&D, and by extension our business, financial condition and results of operations, could be materially 
adversely affected. In addition, negative publicity about us or our industry could harm our reputation. For example, 
farm  animal  producers  may  experience  decreased  demand  for  their  products  or  reputational  harm  as  a  result  of 
evolving consumer views of animal rights, nutrition, and health-related or other concerns. Any reputational harm to 
the  farm  animal  industry  may  also  extend  to  companies  in  related  industries,  including  our  company.  Adverse 
consumer views related to the use of one or more of our products in farm animals also may result in a decrease in 
the use of such products and could have a material adverse effect on our business, financial condition and results of 
operations. 

Consolidation of our customers and distributors could negatively affect the pricing of our products. 

We primarily sell our pet health products to third-party distributors and retailers, as well as directly to veterinarians. 
We  primarily  sell  our  farm  animal  products  to  third-party  distributors  and  directly  to  a  diverse  set  of  farm  animal 
producers, including beef and dairy farmers as well as pork, poultry and aquaculture operations. In recent years, there 
has been a trend toward the concentration of veterinarians in large clinics and hospitals. We have also seen recent 
consolidation among farm animal producers, particularly swine and poultry producers, and among our distributors. 
Furthermore,  we  have  seen  the  expansion  of  larger  cross-border  corporate  customers  and  an  increase  in  the 
consolidation of buying groups (cooperatives of veterinary practices that leverage volume to pursue discounts from 
manufacturers). The pace of consolidation and structure of markets varies greatly across geographies. If these trends 
toward consolidation continue, our customers could attempt to improve their profitability by leveraging their buying 
power to obtain favorable pricing. The resulting decrease in our prices could have a material adverse effect on our 
business, financial condition and results of operations. 

For our pet health products, increased use of alternative distribution channels, or changes within existing 
distribution channels, could negatively impact our market share, margins and distribution of our products. 

In  most  markets,  pet  owners  have  historically  purchased  their  animal  health  products  directly  from  veterinarians. 
However,  pet  owners  increasingly  have  the  option  to  purchase  animal  health  products  from  sources  other  than 
veterinarians, such as online retailers, “big-box” retail stores or other over-the-counter distribution channels. This trend 
has been demonstrated by the significant shift away from the veterinarian distribution channel in the sale of flea and 
tick products and has been accelerated by the increased consumer preferences toward e-commerce in recent years. 
Pet owners also could decrease their reliance on, and visits to, veterinarians as they rely more on internet-based 

22 

 
 
 
animal health information. Because we market our pet health prescription products primarily through the veterinarian 
distribution channel, in the event of a significant decrease in visits to veterinarians by pet owners, our market share 
for such products could be reduced, materially adversely affecting our business, financial condition and results of 
operations. In addition, pet owners may substitute human health products for animal health products if human health 
products are deemed to be lower-cost alternatives. 

Legislation has also been proposed in the U.S. and may be proposed in the U.S. or abroad in the future, that could 
impact the distribution channels for our pet health products. For example, such legislation may require veterinarians 
to provide pet owners with written prescriptions and disclosure that the pet owner may fill prescriptions through a third 
party, which may further reduce the number of pet owners who purchase their animal health products directly from 
veterinarians. Such requirements may lead to increased use of generic alternatives to our products or the increased 
substitution  of  our  pet  health  products  with  other  animal  health  products  or  human  health  products  if  such  other 
products are deemed to be lower-cost alternatives. Many states already have regulations requiring veterinarians to 
provide prescriptions to pet owners upon request, and the American Veterinary Medical Association has long-standing 
policies in place to encourage this practice. 

Over time, these and other competitive conditions may further increase our use of online retailers, “big-box” retail 
stores or other over-the-counter distribution channels to sell our pet health products. If we or our major retail customers 
are not successful in navigating the shifting consumer preferences to distribution channels such as e-commerce, our 
expected future revenues may be negatively impacted. We may also realize lower margins on sales through retail 
distribution channels than we do on sales through veterinarians. Any of these events could materially adversely affect 
our business, financial condition and results of operations. In addition, if one or more of our pet health distributors 
discontinues or modifies their relationship with us, our business, financial condition and results of operations may be 
materially adversely affected.  

Strategic and Operational Risks 

Our results of operations are dependent upon the success of our top products. 

If  any  of  our  top  products  experience  issues,  such  as  disruptive  innovations  or  the  introduction  of  more  effective 
competitive products, negative publicity, changes in veterinarian or customer preferences, loss of patent protection, 
material  product  liability  litigation,  new  or  unexpected  side  effects,  manufacturing  disruptions  and/or  regulatory 
proceedings, our revenue could be negatively impacted, perhaps significantly. Our top five products and/or product 
families, Advantage Family, Seresto, Rumensin, Credelio Family and Maxiban, contributed approximately 31% of our 
revenue in 2023. Any issues with these top products could have a material adverse effect on our business, financial 
condition and results of operations. 

We  may  not  be  able  to  successfully  complete  favorable  transactions  or  successfully  integrate  acquired 
businesses when we pursue acquisitions, divestitures, joint ventures or other significant transactions.  

From time to time, we evaluate potential acquisitions, divestitures or joint ventures to further our strategic objectives. 
The completion of such transactions is often subject to conditions that may be outside our control, including obtaining 
the requisite approval of the shareholders of the target company and/or government antitrust/competition approvals. 
Accordingly, we may not be able to complete announced and signed transactions, and therefore, may not realize the 
anticipated benefits therefrom.  

For  example,  in  February 2024,  we  announced  an agreement  to  sell  our  aqua  business  to  a  subsidiary  of  Merck 
Animal Health (see Note 19. Subsequent Events to the consolidated financial statements for further information). We 
currently anticipate this divestiture to close around mid-year 2024, and upon closing of the sale, we intend to use the 
after-tax cash proceeds to accelerate our debt paydown efforts. The closing of this sale remains conditioned on receipt 
of applicable antitrust and other regulatory approvals, as well as other customary closing conditions. If one or more 
of these conditions is not satisfied, or is not satisfied timely, the sale may not be able to be consummated. In such an 
event,  this  could  result  in  our  inability  to  recover  certain  costs  associated  with  the  proposed  divestiture  that  have 
already been incurred or that will be incurred, damaged relationships with our customers, partners, suppliers and/or 
employees, diversion of management's focus and attention from the normal day-to-day operations of the business 
and/or other potential strategic opportunities, potential litigation relating to the $55 million termination fee owed to us 
in the event the sale is not consummated due to a failure to obtain the applicable regulatory approvals and a potential 
decline in our stock price.   

23 

 
 
 
In the event of a material acquisition, we may be required to devote significant management attention and resources 
to  integrating  the  portfolio and  operations  of  the acquired company.  Potential difficulties we  may encounter  in  the 
integration process include the following: 

• 

• 

• 

• 

• 

the inability to realize the anticipated value from various assets of the acquired company; 

the inability to combine the businesses of the acquired company with ours in a manner that permits us to 
achieve the cost savings or other synergies anticipated as a result of the transaction or to achieve such cost 
savings  or  other  anticipated  synergies  in  a  timely  manner,  which  could  result  in  us  not  realizing  some 
anticipated benefits of the transaction in the time frame anticipated, or at all; 

the loss of key employees; 

potential  unknown  liabilities  and  unforeseen  increased  expenses,  delays  or  unfavorable  conditions  in 
connection with the closing of the transaction and the subsequent integration; and 

performance shortfalls at our or the acquired company as a result of the diversion of management’s attention 
from ongoing business activities. 

Additionally, as a result of our acquisition of Bayer Animal Health, we integrated each business' distinct enterprise 
resource planning (ERP) systems into one primary platform, a process that was substantially completed in the second 
quarter of 2023. ERP integrations have inherent risks, which can complicate our business operations and potentially 
lead to breakdowns in data integrity and may preclude our ability to supply products for a period of time, as was the 
case in the second quarter of 2023. To the extent future ERP or other integration activities are required related to 
future acquisitions, divestitures or joint ventures, we could be required to deploy significant resources and attention 
to these efforts. If we are unable to successfully integrate our systems to support critical business operations and to 
produce information for business decision-making activities, we could also experience a material adverse impact on 
our business or an inability to timely and accurately report our financial results. 

Future  acquisitions  could  also  result  in  potentially  dilutive  issuances  of  equity  securities,  the  incurrence  of  debt, 
contingent liabilities or amortization expenses related to intangible assets and increased operating expenses, which 
could  adversely  affect  our  financial  condition  and  results  of  operations.  Furthermore,  if  we  issue  equity  or  debt 
securities to raise additional funds, our existing shareholders may experience significant dilution, and the new equity 
or  debt  securities  may  have  rights,  preferences  and  privileges  senior  to  those  of  our  existing  shareholders. 
Furthermore, if we sell a substantial number of shares of common stock in the public markets, the availability of those 
shares for sale could adversely affect the market price of our common stock. Such sales, or the perception in the 
market that holders of a large number of shares intend to sell shares, could depress the market price of our common 
stock and impair our ability to raise capital through the sale of additional equity securities. 

We  may  not  be  able  to  successfully  implement  future  restructuring  activities  or  other  significant 
organizational changes.  

We have, from time to time, restructured or made other adjustments to our workforce and manufacturing footprint. 
For example, related to the acquisition and subsequent integration of Bayer Animal Health, we conducted restructuring 
programs which included the elimination of positions across several countries, primarily in sales and marketing, R&D, 
manufacturing and quality, and back-office support. Additionally, in February 2024 our Board of Directors authorized 
a  restructuring  plan  to  improve  operational  efficiencies  and  better  align  our  organizational  structure  with  current 
business needs, top strategic priorities and key growth opportunities. Specifically, the restructuring plan is intended 
to reallocate resources by shifting international resources from farm animal to pet health as we plan for the global 
launches of certain potential blockbuster products currently under regulatory review. Further, the restructuring plan is 
expected  to  result  in  changes  in  how  we  operate  in  and  sell  into  the Argentina  market,  among  others,  which  we 
anticipate will reduce our foreign currency exposure (see Note 19. Subsequent Events to the consolidated financial 
statements for further information).  
There are significant costs involved with the execution of restructuring programs or other significant organizational 
changes,  including  expenses  related  to  severance,  asset  impairment  and  other  potential  charges. There  are  also 
significant risks involved with such changes, including the potential for significant business disruption, diversion of 
management's  time  and  attention  from  on-going  operations,  loss  of  human  capital  talent,  temporarily  reduced 
productivity and the risk of failing to achieve some or all of the anticipated benefits of the restructuring or organizational 
changes. If we are unable to successfully manage and implement our recently announced restructuring plan, we may 
not achieve or sustain the expected growth or cost savings benefits of these activities, or do so within the expected 

24 

 
 
 
timeframe, and in such instance, our financial condition and results of operations could be negatively affected. We 
may also need to implement additional restructuring plans or other strategic initiatives in the future in response to 
market or product changes, performance issues, changes in strategy, acquisitions and/or other internal or external 
considerations.  

Manufacturing problems and capacity imbalances have caused, and may in the future cause, product launch 
delays, inventory shortages, recalls and/or unanticipated costs. 

In order to sell our products, we must be able to produce and ship sufficient quantities to our customers. We own and 
operate 18 internal manufacturing sites across 11 countries and also employ a network of approximately 140 third-
party CMOs. Many of our products involve complex manufacturing processes, are highly regulated and can rely on 
inputs that are sole sourced from certain manufacturing sites. Shifting or adding manufacturing capacity can be a 
lengthy  process requiring significant  capital  expenditures,  process  modifications  and  regulatory  approvals.  Due  to 
this,  unplanned  plant  shutdowns,  manufacturing  or  quality  assurance  difficulties,  failure  or  refusal  of  a  supplier  or 
CMO to supply contracted quantities or difficulties in predicting or variability in demand for our products have caused, 
and may in the future cause, interruption or higher costs in the supply of certain products, product shortages or pauses 
or discontinuations of product sales in one or more markets. Further, minor deviations in our manufacturing or logistical 
processes, such as temperature excursions or improper package sealing, could result, and have in the past resulted 
in,  delays,  inventory  shortages,  unanticipated  costs,  product  recalls,  product  liability  and/or  regulatory  action.  In 
addition, a number of factors could cause production interruptions, including: 

• 

the  failure  of  us  or  any  of  our  vendors  or  suppliers,  including  logistical  service  providers,  to  comply  with 
applicable regulations and quality assurance guidelines; 

•  mislabeling; 

• 

• 

• 

• 

• 

• 

• 

• 

• 

construction delays; 

equipment malfunctions; 

shortages of materials; 

labor problems;  

delays in receiving required governmental authorizations or regulatory approvals; 

natural disasters and/or adverse weather conditions; 

power outages; 

criminal and terrorist activities; 

changes  in  manufacturing  production  sites  and  limits  to  manufacturing  capacity  due  to  regulatory 
requirements, changes in types of products produced, shipping distributions or physical limitations; and 

• 

the outbreak of any highly contagious diseases. 

These interruptions could result in launch delays, inventory shortages, recalls, unanticipated costs or issues with our 
agreements  under  which  we  supply  third  parties,  which  may  materially  adversely  affect  our  business,  financial 
condition and results of operations. Further, global transportation and logistics challenges, cost inflation and tight labor 
markets have caused, and in the future may cause, delays in and/or increased costs related to the distribution of our 
products,  the  construction  or  acquisition  of  manufacturing  capacity,  procurement  activity  and  supplier  or  contract 
manufacturer arrangements.  

In addition, volatility in the overall demand for animal health products in different markets and distribution channels 
has had, and may continue to have, a number of impacts on our business, including increased costs and disruptions 
in the supply of our products. Our manufacturing network may be unable to meet the demand for our products, or we 
may have excess capacity if demand for our products changes. Throughout 2023 we experienced increasing levels 
of inventory on-hand, in part due to volatility in demand across different markets and distribution channels. In addition 
to the negative impact on our cash flows, if we are not able to more effectively manage the purchase and production 
of our inventories to match the timing of customer demand, we may face increased costs for warehousing and the 
potential for our inventories to become unusable or obsolete. 

We  have  also  in  the  past  invested  in,  and  will  continue  to  invest  in,  improvements  to  our  existing  manufacturing 
facilities and may also invest in new manufacturing plants in the future. These types of projects are subject to risks of 
delay or cost overruns inherent in any large construction project and require licensing by or approvals from various 

25 

 
 
 
regulatory authorities. The unpredictability of a product’s regulatory or commercial success or failure, the lead time 
necessary to construct highly technical and complex manufacturing sites and shifting customer demand (including as 
a result of market conditions or entry of branded or generic competition) increase the potential for capacity imbalances. 
In addition, construction of sites is expensive, and our ability to recover costs will depend on the market acceptance 
and success of the products produced at the new sites, which is uncertain. Significant cost overruns or delays in 
completing these projects could have an adverse effect on our financial condition and results of operations. 

Increased or decreased inventory levels in our distribution channels can lead to fluctuations in our revenues 
and levels of inventory on-hand.  

In addition to selling our products directly to veterinarians, we sell to distributors and retailers who, in turn, sell our 
products to third parties. Inventory levels at our distributors and retailers increase or decrease as a result of various 
factors,  including  end  customer  demand,  new  customer  contracts,  heightened  competition,  required  minimum 
inventory levels, our ability to renew distribution contracts with expected terms, our ability to implement commercial 
strategies,  regulatory  restrictions,  unexpected  customer  behavior,  proactive  measures  taken  by  us  in  response  to 
shifting  market  dynamics  and  procedures  and  environmental  factors  beyond  our  control.  These  increases  and 
decreases  can  lead,  and  have  led,  to  variations  in  our  quarterly  and  annual  revenues.  Failure  to  appropriately 
anticipate inventory levels in our distribution channels could materially adversely affect our financial condition and 
results of operations.   

We use machine learning and AI in our business, and challenges with properly managing its use could result 
in competitive or reputational harm and legal liability and adversely affect our results of operations. 

We use AI in multiple ways in our business and continue to expand the use of AI in our operations. Given that machine 
learning and AI are new and rapidly evolving technologies, their use presents a number of operational, compliance 
and  reputational  risks. AI  algorithms  are  currently  known  to  sometimes  produce  unexpected  results  or  behave  in 
unpredictable ways that can generate irrelevant, nonsensical, deficient, factually inaccurate or biased content and 
results. Accordingly, AI presents emerging operational, legal and ethical issues. If our use of AI becomes controversial, 
we  may  experience  reputational  harm  to  our  brand,  competitive  harm  or  legal  liability.  At  the  same  time,  our 
competitors  may  incorporate AI  into  their  operations  more  quickly  than  we  do  or  with  more  successful  outcomes, 
which would also harm our business. We also expect there will be new laws or regulations concerning the use of AI 
technology, which might be burdensome to comply with and may limit our ability to use this technology. We might not 
be able to attract and retain the talent to support our AI technology initiatives and maintain our systems. Any disruption 
or failure in our AI systems or those of third parties on whom we rely could result in delays and operational challenges, 
and  the  various  operational,  compliance  and  reputational  issues  could  materially  adversely  affect  our  business, 
financial condition and results of operations. 

We depend on sophisticated information technology and infrastructure. 

We are continuing to enhance a number of our business processes, including our financial reporting and supply chain 
processes and with respect to where and from whom we obtain information technology systems. We have made, and 
will continue to make, significant configuration, process and data changes within many of the information technology 
systems we use. If our information technology systems and processes are not sufficient to support our business and 
financial reporting functions, or if we fail to properly implement our new business processes, our financial reporting 
may be delayed or inaccurate and, as a result, our business, financial condition and results of operations may be 
materially adversely affected. Even if we are able to successfully configure and change our systems, all technology 
systems, even with implementation of security measures, are vulnerable to disability, failures or unauthorized access. 
If  our  information  technology  systems  or  our  service  providers'  information  technology  systems  were  to  fail  or  be 
breached, this could materially adversely affect our reputation and our ability to perform critical business functions, 
and sensitive and confidential data could be compromised.  

Our business may be negatively affected by weather conditions and the availability of natural resources. 

The  animal  health  industry  and  demand  for  many  of  our  products  in  a  particular  region  are  affected  by  weather 
conditions, including those related to climate change, varying weather patterns and weather-related pressures from 
pests, such as ticks. As a result, we may experience regional and seasonal fluctuations in our results of operations. 
For example, on average, approximately 75% and 60% of total annual revenue contribution from our higher margin 
parasiticide products Seresto and Advantage Family, respectively, occurs in the first half of the year, reflective of the 
flea  and  tick  season  in  the  Northern  Hemisphere. As  such,  fluctuations  in  our  revenue  due  to  seasonality  and/or 

26 

 
 
 
weather or climate-related factors, many of which are beyond our control, may mean period-to-period comparisons 
of our results of operations will not necessarily be meaningful.  

Farm animal producers depend on the availability of natural resources, including large supplies of fresh water. Their 
animals’ health and their ability to operate could be adversely affected if they experience a shortage of fresh water 
due to human population growth or floods, droughts or other weather conditions. In the event of adverse weather 
conditions or a shortage of fresh water, veterinarians or farm animal producers may purchase less of our products. 

Further, heat waves may cause stress in animals and lead to increased vulnerability to disease, reduced fertility rates 
and reduced milk production. Droughts may threaten pasture and feed supplies by reducing the quality and amount 
of forage available to grazing livestock, while climate change may increase the prevalence of parasites and diseases 
that affect farm animals. Adverse weather conditions and climate change may also have a material adverse impact 
on our aquaculture business, as changes in water temperatures could affect the timing of reproduction and growth of 
various fish species, as well as trigger the outbreak of certain water borne diseases. 

In addition, veterinary hospitals and practitioners depend on visits from, and access to, the animals under their care. 
Veterinarians’ patient volume and ability to operate could be adversely affected if they experience prolonged snow, 
ice or other severe weather conditions, particularly in regions not accustomed to sustained inclement weather. 

We  could  experience  demand,  supply  and  operational  challenges  associated  with  the  effects  of  a  human 
disease outbreak, epidemic, pandemic or other widespread public health concern.  

Our  business  has  been,  and  may  continue  to  be,  negatively  impacted  by  human  disease  outbreaks,  epidemics, 
pandemics  or  other  widespread  public  health  concerns,  such  as  the  COVID-19  pandemic  and  its  variants. These 
impacts included, and in the event of a future widespread public health concern may in the future include: 

•  Reductions in demand or significant volatility in demand for one or more of our products, caused by, among 
other things: the temporary inability of our customers to purchase our products due to illness, quarantine, 
travel  restrictions  and/or  financial  hardship;  decreased  veterinary  visits;  farm  animal  processing  plant 
shutdowns; shifts in demand by trading down to lower priced products; or stockpiling activity; 

• 

Inability to meet customer needs and achieve cost targets due to disruptions in our manufacturing and supply 
chains caused by labor constraints or inability to obtain key raw materials, increased transportation costs or 
other manufacturing and distribution disruptions; 

•  Failure  of  third  parties  on  which  we  rely,  including  our  suppliers,  contract  manufacturers,  distributors, 
contractors and other external business partners, to meet their obligations, which may be caused by their 
own financial or operational challenges; 

• 

Limited ability to access the global financial market, which could negatively impact our short-term and long-
term liquidity; or 

•  Significant changes in the political environments in the markets in which we manufacture, sell or distribute 
our  products,  including  lockdowns,  import/export  restrictions  or  other  governmental  mandates  that  limit  or 
close  operating  and  manufacturing  facilities,  restrict  travel  to  perform  necessary  business  functions  or 
otherwise prevent us or our third-party partners, suppliers or customers from sufficiently staffing operations, 
including operations necessary for the production, distribution and sale of our products. 

Despite our efforts to manage and limit these impacts, they will likely ultimately be dependent on factors beyond our 
control, including the duration and severity of any such outbreak, as well as third-party actions taken to contain its 
spread and mitigate its effects.  

A loss of key personnel or highly skilled employees could disrupt our operations. 
Our future success depends partly on the continued service of our highly qualified and well-trained key research, 
engineering, sales, marketing, manufacturing, executive and administrative personnel. We face intense competition 
for these qualified personnel from our competitors and others, particularly for certain highly technical specialties in 
geographic areas where we recruit. Due to this intense competition, we may be unable to continue to attract and 
retain qualified personnel necessary for the development of our business, or to recruit or identify suitable replacement 
personnel. If we are unsuccessful in our recruitment and retention efforts, our business may be harmed. In addition, 
if we fail to effectively manage organizational and/or strategic changes, our financial condition, results of operations 
and reputation, as well as our ability to successfully attract, motivate and retain key employees, could be harmed.  

27 

 
 
 
Our business could be materially adversely affected by labor disputes, strikes or work stoppages. 

Some  of  our  employees  are  members  of  unions,  works  councils,  trade  associations  or  are  otherwise  subject  to 
collective  bargaining  agreements  in  certain  jurisdictions. As  a  result,  we  are  subject  to  the  risk  of  labor  disputes, 
strikes, work stoppages and other labor-relations matters. We may be unable to negotiate new collective bargaining 
agreements on similar or more favorable terms, and may experience work stoppages, higher ongoing labor costs or 
other labor problems in the future at our sites. We may also experience difficulty or delays in implementing changes 
to our workforce in certain markets. Further, labor-related issues, including at our suppliers or CMOs, could cause a 
disruption  of  our  operations,  which  could  have  a  material  adverse  effect  on  our  business,  financial  condition  and 
results of operations, potentially resulting in cancelled orders by customers, unanticipated inventory accumulation or 
shortages and reduced revenue and net income. 

Economic, Market and Financial Risks 

We have substantial indebtedness. 

We had approximately $5.8 billion of outstanding indebtedness at December 31, 2023. A significant amount of our 
cash flows from operations is dedicated to servicing this indebtedness and will not be available for other purposes, 
including our operating, investing or financing needs. Our ability to make scheduled payments or to refinance our debt 
obligations depends on our financial condition and operating performance, which are subject to prevailing economic 
and  competitive  conditions,  and  to  certain  financial,  business,  legislative,  regulatory  or  other  factors  beyond  our 
control. If our cash flows and capital resources are insufficient to fund our debt service obligations, or we are unable 
to access capital markets for additional financing on terms acceptable to us, we may be forced to reduce or delay 
investments and capital expenditures, sell assets, seek additional debt or equity financing or seek to restructure or 
refinance our indebtedness. These alternative measures may not be successful and may not permit us to meet our 
scheduled debt service obligations. In such event, we may not be able to execute any such measures on commercially 
reasonable terms or at all and, even if successful, could still face substantial liquidity problems and might be required 
to  sell  material  assets  or  operations  to  attempt  to  meet  our  debt  service  and  other  obligations.  Further,  our  debt 
instruments may restrict our ability to dispose of assets and may restrict the use of proceeds from those dispositions 
and  may  also  restrict  our  ability  to  raise  debt  or  equity  financing  to  be  used  to  repay  other  indebtedness  when  it 
becomes due. We may not be able to consummate those dispositions or to obtain proceeds in an amount sufficient 
to meet any debt service obligations when due. 

In addition, repayment of our indebtedness will depend on the generation of cash flow by our subsidiaries, including 
certain international subsidiaries, and their ability to make such cash available to us, by dividend, debt repayment or 
otherwise. Our subsidiaries may not be able to, or may not be permitted to, make adequate distributions to enable us 
to make required debt repayments. Each subsidiary is a distinct legal entity and, under certain circumstances, legal, 
tax and contractual restrictions may limit our ability to obtain cash from them. In the event we are not able to receive 
distributions  from  our  subsidiaries,  we  may  be  unable  to  make  required  principal  and  interest  payments  on  our 
indebtedness. 

In February 2024, we announced an agreement to sell our aqua business, which we expect to close around mid-year 
2024. Upon closing of the sale, we intend to use the after-tax cash proceeds to accelerate our debt paydown efforts 
by  paying  down  more  than  $1  billion  in  outstanding  indebtedness.  However,  the  closing  of  this  sale  remains 
conditioned  on  receipt  of  applicable  antitrust  and  other  regulatory  approvals,  as  well  as  other  customary  closing 
conditions. If one or more of these conditions is not satisfied, or is not satisfied timely, the sale may not be able to be 
consummated, and in such an event, this aforementioned debt paydown would not occur as planned. 

In addition, our high level of indebtedness could have other important consequences, including: 

• 

limiting our ability to obtain additional financing to fund future working capital, capital expenditures, business 
development or other general corporate requirements; 

• 

increasing our vulnerability to general adverse economic and industry conditions; 

•  making  us  more  highly  leveraged  than  some  of  our  competitors,  which  may  place  us  at  a  competitive 

disadvantage; 

• 

restricting us from making strategic acquisitions, engaging in development activities or exploiting business 
opportunities; and 

• 

limiting our flexibility in planning for and reacting to changes in the animal health industry. 

28 

 
 
 
Our debt agreements contain restrictions that will limit our flexibility in operating our business. 

Our credit facilities contain, and any other existing or future indebtedness of ours would likely contain, a number of 
covenants that impose significant operating and financial restrictions on us, including restrictions on our ability to, 
among other things: 

• 

• 

• 

incur additional debt, guarantee indebtedness or issue certain preferred shares;  

prepay, redeem or repurchase certain debt; 

pay dividends on or make distributions in respect of, or repurchase or redeem, our capital stock or make other 
restricted payments; 

•  make loans or certain investments; 

• 

• 

• 

• 

• 

sell certain assets;  

create liens on certain assets; 

consolidate, merge, sell or otherwise dispose of all or substantially all of our assets; 

enter into certain transactions with our affiliates; and 

substantially alter the businesses we conduct. 

In addition, certain of our credit facilities require us to comply with a net total leverage ratio and a minimum fixed 
charge coverage ratio under certain circumstances (see Note 8. Debt to the consolidated financial statements for 
further discussion and descriptions of debt covenants). As a result of these covenants, we are limited in the manner 
in which we conduct our business, and we may be unable to engage in favorable business activities or finance future 
operations  or  capital  needs. A  failure  to  comply  with  the  covenants  under  the  indenture  that  governs  the  senior 
unsecured notes and credit facilities, or any of our other existing or future indebtedness could result in an event of 
default, which, if not cured or waived, could have a material adverse effect on our business, financial condition and 
results of operations. In the event of an event of default under our credit facilities, it is expected that the lenders: 

•  will not be required to lend any additional amounts to us; 

• 

• 

• 

could elect to declare all borrowings outstanding, together with accrued and unpaid interest and fees, to be 
due and payable and terminate all commitments to extend further credit; 

could require us to apply all of our available cash to repay these borrowings; or 

could effectively prevent us from making debt service payments on the notes (due to a cash sweep feature).  

Such actions by the lenders could cause cross defaults under our other indebtedness, including our senior unsecured 
notes. If we were unable to cure any covenant noncompliance, the lenders under our credit facilities and any of our 
other existing or future secured indebtedness could proceed against the collateral granted to them to secure our credit 
facilities or such other indebtedness. We have pledged a significant portion of our assets as collateral under our credit 
facilities. 

Changes in our credit ratings could increase our interest expense and restrict our access to, and negatively 
impact the terms of, current or future financings or trade credit. 

Credit  rating  agencies  continually  revise  their  ratings  for  the  companies  they  follow,  including  us.  Credit  rating 
agencies also evaluate our industry as a whole and may change their credit ratings for us based on their overall view 
of our industry. We cannot be sure that credit rating agencies will maintain their ratings for us or for certain of our debt. 
The  acquisition  of  Bayer Animal  Health  had  a  negative  impact  on  our  credit  ratings,  leading  to  higher  borrowing 
expenses. Additionally, S&P, Moody's and Fitch downgraded our credit ratings in February, March and April 2023, 
respectively. Because the ratings of certain of our senior unsecured notes were downgraded, we have been required 
to pay additional interest under these senior unsecured notes. Any further downgrades could result in requirements 
to pay additional interest under the 4.900% Senior Notes due 2028. Moreover, any decision to downgrade our ratings 
could restrict our access to, and negatively impact the terms of, current or future financings and trade credit extended 
by our suppliers of raw materials or other vendors. 

Changes in interest rates may adversely affect our earnings and/or cash flows. 

Certain of our credit facilities bear variable interest at the Term SOFR reference rate. Term SOFR measures the cost 
of  borrowing  cash  overnight,  collateralized  by  U.S. Treasury  securities,  and  is  based  on  directly  observable  U.S. 
Treasury-backed  repurchase  transactions.  We  are  exposed  to  the  risk  of  rising  interest  rates,  given  our  level  of 

29 

 
 
 
variable-rate indebtedness, and Term SOFR rate increases over the course of 2023 have led to an increase in both 
our interest expense and cash paid for interest. Additionally, the increased interest rate environment, particularly for 
long-term treasury rates, played a critical role in the goodwill impairment charge we recorded during 2023. Any further 
increases in Term SOFR or other benchmark rates, including long-term treasury rates, would expose us to additional 
interest rate risk, additional expense and the potential for additional future impairments. We are also exposed to the 
risk of rising interest rates to the extent we fund our operations with short-term or variable-rate borrowings. See Part 
II, Item 7A. Quantitative and Qualitative Disclosure About Market Risk for further discussion around our exposure to 
changes in interest rates.  

We may be required to write down goodwill or identifiable intangible assets. 
At  December 31,  2023,  the  net  carrying  value  of  our  goodwill  and  other  indefinite-lived  intangible  assets  on  our 
consolidated balance sheet was $5,094 million and $347 million, respectively. Other indefinite-lived intangible assets 
primarily  consist  of  in-process  R&D  (IPR&D)  projects  acquired  as  a  part  of  past  business  combinations.  Under 
accounting principles generally accepted in the United States (GAAP), we are required to annually assess our goodwill 
and other indefinite-lived assets for impairment, and more frequently whenever events or changes in circumstances 
indicate an impairment may have occurred. Determining whether an impairment exists or may have occurred, and 
the amount of the potential impairment, involves qualitative criteria and quantitative data based on management’s 
estimates and assumptions, which require significant judgment and could change given a change in circumstances, 
future events or as new information becomes available.  

Due principally to the sharp increase in long-term treasury rates in the third quarter of 2023, which led to an increased 
discount  rate  assumption  relative  to  prior  assessments,  we  recorded  a  $1,042  million  pre-tax  impairment  charge. 
While we believe the estimates and assumptions underlying our goodwill impairment test were reasonable in view of 
all available information, and no additional impairment to our goodwill or other indefinite-lived intangible assets was 
recorded  during  the  fourth  quarter  of  2023,  future  changes  in  our  discount  rate  assumption,  whether  driven  by 
increases in long-term treasury rates or other factors, or future changes in other significant assumptions or the use of 
alternative estimates and assumptions, could expose us to further goodwill impairment losses. Any impairment of 
goodwill or other indefinite-lived intangible assets could have a material adverse effect on our results of operations in 
the period(s) when recognized. 

We rely on third parties to provide us with products and materials and are subject to increased material costs 
and potential disruptions in supply. 

Feed, fuel, transportation and other key costs for farm animal producers may continue to increase, or animal protein 
prices or sales may decrease. Either of these trends could cause deterioration in the financial condition of our farm 
animal product customers, potentially inhibiting their ability to purchase our products or pay us for products delivered. 
Our  farm  animal  product  customers  may  offset  rising  costs  by  reducing  spending  on  our  products,  including  by 
switching to lower-cost alternatives. In addition, concerns about the financial resources of pet owners could cause 
veterinarians to alter their treatment recommendations in favor of lower-cost alternatives to our products, which could 
result in a decrease in sales of our pet health products, especially in developed countries where there are higher rates 
of  pet  ownership.  Rising costs  or  reduced  income  for  our customers  could  have  a  material  adverse  effect  on  our 
business, financial condition and results of operations. 

We also rely on third parties to source many of our raw materials and to manufacture products that we distribute. 
Principal materials used in our manufacturing operations for key brands are typically available from more than one 
source; however, in certain instances we obtain raw or intermediate materials from a single source. We generally 
seek to develop an appropriate inventory strategy to fill market demand until an alternative source of supply can be 
implemented, in the event a supplier becomes unable to provide the required materials or product. However, various 
developments have led, and may in the future lead, to interruption or shortages in supply (for example, with cattle 
vaccines in 2023) until we establish new sources, implement alternative processes, bring new manufacturing facilities 
online  or  pause  or  discontinue  product  sales  in  one  or  more  markets. Additionally,  we  have  and  may  continue  to 
experience cost increases for certain raw materials or other components required to manufacture our products due 
to increased shipping costs and other inflationary pressures. This may have a material adverse impact on our financial 
results if we cannot pass on such increases to our customers. Further, the unavailability or delivery delays of raw 
materials  has  affected  and  could  continue  to  affect  our  ability  to  ship  the  related  products  timely,  more  severely 
impacting high-volume or high-margin products. 

30 

 
 
 
Significant  portions  of  our  operations  are  conducted  in  foreign  jurisdictions,  including  jurisdictions 
presenting a high risk of bribery and corruption, and are subject to the economic, political, legal and business 
environments of the countries in which we do business. 

Our international operations could be limited or disrupted by any of the following: 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

volatility in the international financial markets; 

compliance with governmental controls; 

difficulties enforcing contractual and intellectual property rights; 

parallel trade in our products (importation of our products from EU countries where our products are sold at 
lower prices into EU countries where the products are sold at higher prices); 

compliance with a wide variety of laws and regulations, such as the U.S. Foreign Corrupt Practices Act (the 
FCPA) and similar non-U.S. laws and regulations; 

compliance with foreign labor laws; 

compliance  with  local,  regional  and  global  restrictions  on  banking  and  commercial  activities  in  emerging 
markets; 

burdens  to  comply  with  multiple  and  potentially  conflicting  foreign  laws  and  regulations,  including  those 
relating to EHS requirements and those in emerging markets; 

changes in laws, regulations, government controls or enforcement practices with respect to our business and 
the businesses of our customers, including the imposition of limits on our profitability; 

political and social instability, including crime, civil disturbance, terrorist activities and armed conflicts such as 
the Russia-Ukraine conflict and the related government and other entity responses; 

trade restrictions and restrictions on direct investments by foreign entities, including restrictions administered 
by the Office of Foreign Assets Control of the U.S. Department of the Treasury and the EU, in relation to our 
products or the products of farmers and other customers; 

government limitations on foreign ownership; 

government takeover or nationalization of business; 

changes in tax laws and tariffs; 

imposition of anti-dumping and countervailing duties or other trade-related sanctions; 

costs  and  difficulties  and  compliance  risks  in  staffing,  managing  and  monitoring  international  operations, 
including in the use of overseas third-party goods and service providers; 

corruption risk inherent in business arrangements and regulatory contacts with foreign government entities; 

longer payment cycles and increased exposure to counterparty risk; and 

additional  limitations  on  transferring  personal  information  between  countries  or  other  restrictions  on  the 
processing of personal information. 

In addition, international transactions may involve increased financial and legal risks due to differing legal systems 
and customs, as well as restrictions and sanctions that may be imposed on one or more jurisdictions. Compliance 
with these requirements may prohibit the import or export of certain products and technologies or may require us to 
obtain a license before importing or exporting certain products or technologies. A failure to comply with any of these 
laws,  regulations  or  requirements  could  result  in  civil  or  criminal  legal  proceedings,  monetary  or  non-monetary 
penalties, or both, disruptions to our business, limitations on our ability to import and export products and damage to 
our reputation. In addition, variations in the pricing of our products between jurisdictions may result in the unauthorized 
importation or unauthorized re-importation of our products between jurisdictions and may also result in the imposition 
of anti-dumping and countervailing duties or other trade-related sanctions. While the impact of these factors is difficult 
to predict, any of them could materially adversely affect our business, financial condition and results of operations. 
Further, changes in any of these laws, regulations or requirements, or the political environment in a particular country, 
may affect our ability to engage in business transactions in certain markets, including investment, procurement and 
repatriation of earnings. 

31 

 
 
 
 
Our results of operations may be adversely affected by foreign currency exchange rate fluctuations. 

We operate on a global basis and are exposed to the risk that our earnings, cash flows and equity could be adversely 
impacted by fluctuations in foreign exchange rates. Because our results are reported in U.S. dollars, we are exposed 
to  foreign  currency  exchange  risk,  as  the  functional  currency  financial  statements  of  non-U.S.  subsidiaries  are 
translated to U.S. dollars for reporting purposes. We are primarily exposed to foreign exchange risk with respect to 
net  assets  denominated  in  the  Euro,  British  pound,  Swiss  franc,  Brazilian  real, Australian  dollar,  Japanese  yen, 
Canadian  dollar  and  Chinese  yuan. To  the  extent  revenue  and  expense  transactions  are  not  denominated  in  the 
functional currency, we are also subject to the risk of transaction losses. Given the volatility of exchange rates and 
despite the mitigating impact of foreign currency forward or option derivative contracts we enter into to reduce the 
effect of fluctuating currency exchange rates, there is no guarantee we will be able to effectively manage currency 
transaction  and/or  translation  risks,  which  could  adversely  affect  our  results  of  operations.  See  Part  II,  Item  7A. 
Quantitative and Qualitative Disclosure About Market Risk for further discussion around our exposure to  potential 
changes in foreign currency exchange rates. 

We have underfunded pension plan liabilities. We will require current and future operating cash flow to fund 
these shortfalls, reducing the cash available for other uses.  

We have certain defined benefit pension plans, predominantly in Germany and Switzerland, that are either dedicated 
to our current or past employees or where the plan assets and liabilities related to our current or past employees were 
legally  required  to  transfer  to  us  at  the  time  of  our  separation  from  Lilly  (see Note  17.  Retirement  Benefits  to  the 
consolidated financial statements for additional discussion around our defined benefit plans). The funded status and 
net  periodic  pension  cost  for  these  plans  is  materially  affected  by  the  discount  rate  used  to  measure  pension 
obligations,  the  longevity  and  actuarial  profile  of  our  workforce,  the  level  of  plan  assets  available  to  fund  those 
obligations and the actual and expected long-term rate of return on plan assets. Significant changes in investment 
performance or a change in the portfolio mix of invested assets can result in corresponding increases and decreases 
in the valuation of plan assets or in a change in the expected rate of return on plan assets. As of December 31, 2023, 
for pension plans with projected benefit obligations in excess of plan assets, the projected benefit obligation was $343 
million  with  plan  assets  of  $168  million. Any  changes  in  the  discount  rate  could  result  in  a  significant  increase  or 
decrease in the valuation of pension obligations, affecting the reported funded status of our pension plans as well as 
the net periodic pension cost in the following years. Similarly, changes in the expected or actual return on plan assets 
can result in significant changes in the net periodic pension cost in the following years. In the event we need to make 
additional cash contributions to these plans, this will divert resources from our operations and may have a material 
adverse effect on our business, financial condition and results of operations. 

We do not anticipate paying dividends on our common stock in the foreseeable future. 

We do not anticipate paying any dividends in the foreseeable future on our common stock. We intend to retain all 
future earnings for the operation and expansion of our business and the repayment of outstanding debt. Certain of 
our  credit  facilities  contain  restrictive  covenants  that  impose  significant  operating  and  financial  restrictions  on  us, 
including  restrictions  on  our  ability  to  pay  dividends  or  to  make  other  restricted  payments.  As  a  result,  capital 
appreciation, if any, of our common stock may be our shareholders' major source of gain for the foreseeable future. 
While we may change this policy at some point in the future, we cannot assure you we will make such a change. 

We could be negatively impacted by being a target of shareholder activism, causing us to incur significant 
expense and hinder or disrupt the execution of our business strategy. 

While we value constructive input from our investors and regularly engage in dialogue with our shareholders regarding 
our  business  strategy  and  performance,  shareholder  activism,  which  takes  many  forms  and  arises  in  a  variety  of 
situations, has been increasingly prevalent among publicly traded companies. If we become the subject of certain 
forms of shareholder activism, such as proxy contests or hostile bids, the attention of our management and our Board 
of  Directors  may  be  diverted  from  executing  our  strategy.  Such  shareholder  activism  could  give  rise  to  perceived 
uncertainties as to our future strategy, adversely affect our relationships with business partners and make it more 
difficult to attract and retain qualified personnel. Responding to unwanted stockholder activism could also result in 
substantial costs, including significant legal fees and other expenses. Our stock price could be subject to significant 
fluctuation or otherwise be adversely affected by the events, risks and uncertainties of any shareholder activism. 

32 

 
 
 
Applicable laws and regulations, provisions of our Amended and Restated Articles of Incorporation and our 
Amended  and  Restated  Bylaws  may  discourage  takeover  attempts  and  business  combinations  that 
shareholders might consider in their best interests. 

Applicable laws, provisions of our Amended and Restated Articles of Incorporation and our Amended and Restated 
Bylaws may delay, deter, prevent or render more difficult a takeover attempt that our shareholders might consider in 
their best interests. For example, they may prevent our shareholders from receiving the benefit from any premium to 
the market price of our common stock offered by a bidder in a takeover context. Even in the absence of a takeover 
attempt, the existence of these provisions may adversely affect the prevailing market price of our common stock if 
they are viewed as discouraging takeover attempts in the future. 

Our Amended  and  Restated Articles  of  Incorporation  and  our Amended  and  Restated  Bylaws  contain  provisions 
intended to encourage prospective acquirers to negotiate with our Board of Directors rather than to attempt a hostile 
takeover, which could deter coercive takeover practices and inadequate takeover bids. These provisions provide for: 

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• 

a Board of Directors divided into three classes with staggered terms; 

advance notice requirements regarding how our shareholders may present proposals or nominate directors 
for election at shareholder meetings; 

the right of our Board of Directors to issue one or more series of preferred stock with such powers, rights and 
preferences as the board of directors shall determine; 

only the Board of Directors to fill newly created directorships or vacancies on our Board of Directors; 

limitations  on  the  ability  of  shareholders  to  call  special  meetings  of  shareholders  and  require  that  all 
shareholder action be taken at a meeting rather than by written consent; and 

• 

the exclusive right of our Board of Directors to amend our Amended and Restated Bylaws. 

These limitations may adversely affect the prevailing market price and market for our common stock if they are viewed 
as limiting the liquidity of our stock or discouraging takeover attempts in the future. 

We  have  recently  announced  plans  to  seek  shareholder  approval  at  our  2024  annual  meeting  of  shareholders  to 
amend  our  corporate  governing  documents  to  begin  a  process  to  declassify  the  Board  of  Directors,  provide 
shareholders the right to amend our bylaws, enable shareholders to call special meetings under certain circumstances 
and modify the voting standard for uncontested director elections from a plurality standard to a majority of votes cast. 
However, there can be no assurance whether shareholder approval of these amendments will be obtained. 

We may incur additional tax expense or become subject to additional tax exposure. 

We are subject to income taxes in the U.S. and numerous other jurisdictions. Our future results of operations could 
be adversely affected by changes in the effective tax rate as a result of a change in the mix of earnings between U.S. 
and non-U.S. jurisdictions or among jurisdictions with differing statutory tax rates, changes in our overall profitability, 
changes in tax laws or treaties or in their application or interpretation, changes in tax rates, changes in GAAP, changes 
in the valuation of deferred tax assets and liabilities, the results of audits and examinations of previously filed tax 
returns and continuing assessments of our tax exposures. In connection with the Base Erosion and Profit Shifting 
(BEPS) Integrated Framework provided by the Organization for Economic Cooperation and Development (OECD), 
the OECD has introduced a framework to implement a global minimum corporate tax of 15%, referred to as Pillar Two 
or the minimum tax directive. Many aspects of the minimum tax directive will be effective beginning in 2024, with 
certain remaining impacts to be effective beginning in 2025. While it is uncertain whether the U.S. will enact legislation 
to adopt the minimum tax directive, certain countries in which we operate have adopted legislation, and other countries 
are in the process of introducing legislation to implement the minimum tax directive. Our analysis is ongoing as the 
OECD continues to release additional guidance and countries implement legislation. To the extent additional changes 
take  place  in  the  countries  in which we  operate,  it  is  possible  these  legislative  changes and  efforts  may  increase 
uncertainty and have an adverse impact on our effective tax rates.   

We are also subject to the examination of our tax returns and other tax matters by the Internal Revenue Service and 
other tax authorities and governmental bodies. We regularly assess the likelihood of an adverse outcome resulting 
from these examinations to determine the adequacy of our provision for taxes. There can be no assurance as to the 
outcome of these examinations. If our effective tax rates were to increase, particularly in the U.S. or other material 
foreign  jurisdictions,  or  if  the  ultimate  determination  of  our  taxes  owed  is  for  an  amount  in  excess  of  amounts 
previously accrued, our operating results, cash flows and financial condition could be adversely affected.  

33 

 
 
 
Legal and Regulatory Compliance Risks 

Our business is subject to substantial regulation. 

As  a  global  company,  we  are  subject  to  various  state,  federal  and  international  laws  and  regulations,  including 
regulations relating to the development, quality assurance, manufacturing, importation, distribution, marketing and 
sale of our products. In addition, our manufacturing facilities, including the manufacturing facilities operated by our 
CMOs, are subject to periodic inspections by regulatory agencies. An inspection may report conditions or practices 
that  indicate  possible  violations  of  regulatory  requirements.  Our  failure,  or  the  failure  of  third  parties  we  rely  on, 
including  CMOs,  to  comply  with  applicable  regulatory  requirements,  allegations  of  such  non-compliance  or  the 
discovery  of  previously  unknown  problems  with  a  product  or  manufacturer  could  result  in,  among  other  things, 
inspection observation notices, warning letters or similar regulatory correspondence, fines, a partial or total shutdown 
of production in one or more of our facilities while an alleged violation is remediated, withdrawals or suspensions of 
current products from the market and civil or criminal prosecution, as well as decreased sales as a result of negative 
publicity and product liability claims. Any one of these consequences could materially adversely affect our business, 
financial condition and results of operations. 

In addition, we will not be  able to market new products unless and until we have obtained all required regulatory 
approvals or equivalent notices in each jurisdiction where we plan to market those products. Even after a product 
reaches market, we may be subject to re-review and may lose our approvals. For example, pending claims have been 
asserted  in  a  lawsuit  against  the  FDA's  approval  of  Experior,  a  product  launched  in  2021.  Our  failure  to  obtain 
approvals, delays in the approval process or our failure to maintain approvals in any jurisdiction, may prevent us from 
selling products in that jurisdiction until approval or re-approval is obtained, if ever. 

In the EU, the Veterinary Medicinal Products Regulation updated the rules related to the authorization and use of 
veterinary medicines effective January 28, 2022. The updated rules limit the use of antibiotics, tighten importation 
rules and impose stricter pharmacovigilance standards. This regulation must still be implemented at the member state 
level and as such, additional requirements may be adopted by individual member states, which would have the effect 
of increasing the compliance requirements for our business in the EU, with resulting costs.  

If  the  acceptance  and/or  adoption  of  our  farm  animal  sustainability  initiatives  do  not  continue,  our  future 
results may be materially impacted. 

We  have  made  significant  progress  in  recent  years  in  gaining  acceptance  of  farm  animal  sustainability  products. 
However, the degree of acceptance for these products is uncertain, and one or more markets may resist the adoption 
of new products for the sole purpose of sustainability. As a result, there can be no assurance we will be able to expand 
the use of our sustainability products in these or other markets. 

Increased regulation or decreased governmental financial support relating to the raising, processing or 
consumption of farm animals could reduce demand for our farm animal products.  

Companies in the farm animal sector are subject to extensive and increasingly stringent regulations. If farm animal 
producers are adversely affected by new regulations or changes to existing regulations, they may reduce herd or flock 
sizes or become less profitable and, as a result, they may reduce their use of our products, which may materially 
adversely affect our business, financial condition and results of operations. Also, many farm animal producers benefit 
from governmental subsidies, and if such subsidies were to be reduced or eliminated, these companies may become 
less profitable and, as a result, may reduce their use of our farm animal products. More stringent regulation of the 
farm animal sector, including regarding the use of farm animal products, could have a material adverse effect on our 
business, financial condition and results of operations. 

Modification of foreign trade policy may harm our farm animal product customers. 

Changes in laws, agreements and policies governing foreign trade in the territories and countries where our customers 
do business could negatively impact such customers’ businesses and adversely affect our results of operations. A 
number of our customers rely on duty reduction benefits provided by free trade agreements, such as the U.S.-Mexico-
Canada-Agreement. However, trade partnerships and treaties can be modified by domestic and foreign governments, 
which could result in new or increased tariffs. Additionally, countries are becoming increasingly protectionist, both to 
protect local industries as well as to ensure domestic supply chain continuity for key products, such as medicines. 
Finally, as global security decreases, more countries will use sanctions and export controls as a method to deal with 
such insecurity, which could result in decreased markets for our products.  

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We  may  incur  substantial  costs  and  receive  adverse  outcomes  in  litigation,  regulatory  investigations  and 
other legal matters.  
Litigation  matters  and  regulatory  investigations,  regardless  of  their  merits  or  ultimate  outcomes,  are  costly,  divert 
management’s attention and may materially adversely affect our reputation and demand for our products. We cannot 
predict with certainty the eventual outcome of pending or future legal matters. An adverse outcome of litigation or 
legal matters could result in us being responsible for significant damages. Our business, financial condition and results 
of operations could be materially adversely affected by unfavorable results in pending or future litigation, regulatory 
investigations and other legal matters and the expense of defending against them. These matters may include, among 
other things, allegations of violation of U.S. and foreign competition law, labor laws, securities laws and regulations, 
consumer protection laws and environmental laws and regulations, as well as claims or litigation relating to product 
liability, intellectual property, securities, breach of contract and tort. For example, shareholder class action lawsuits 
filed against us in 2020 allege, in part, that we and certain of our executives made materially false and/or misleading 
statements  and/or  failed  to  disclose  certain  facts  about  our  supply  chain,  inventory,  revenue,  projections  and  our 
relationships with third party distributors and revenue attributable to those distributors. We are vigorously defending 
against the claims made in these lawsuits; however, the ultimate resolution cannot be predicted, and the claims raised 
in these lawsuits may result in further legal matters or actions against us, including, but not limited to, government 
enforcement actions or additional private litigation.  

Also, on July 1, 2021, we received a subpoena from the SEC relating to our channel inventory and sales practices 
prior to mid-2020. We have cooperated in providing documents and information to the SEC and will continue to do 
so. We have engaged in discussions with the SEC about a possible resolution or settlement of potential disclosure 
claims. While we have not reached an agreement on a resolution or settlement of the potential disclosure claims, 
based on the ongoing discussions with the SEC, we have accrued a liability of $12.5 million as of December 31, 2023. 
It  remains  uncertain  whether  an  agreement  will  be  reached  and  the  terms  of  any  such  agreement.  Management 
continues to believe its actions were appropriate. 

In addition, changes in the interpretations of laws and regulations to which we are subject, or in legal standards in 
one or more of the jurisdictions in which we operate, could increase our exposure to liability. For example, in the U.S., 
attempts have been made to allow damages for emotional distress and pain and suffering in connection with the loss 
of, or injury to, a pet. If such attempts were successful, our exposure with respect to product liability claims could 
increase materially. 

The actual or purported intellectual property rights of third parties may negatively affect our business. 

A third party may sue us, or our distributors or licensors, or otherwise make a claim alleging infringement or other 
violation  of  such  third-party’s  patents,  trademarks,  trade  dress,  copyrights,  trade  secrets,  domain  names  or  other 
intellectual property rights. If our distributors, licensors or we do not prevail in this type of litigation, we may be required 
to: 

• 

• 

• 

pay monetary damages; 

obtain a license in order to continue manufacturing or marketing the affected products, which may not be 
available on commercially reasonable terms, or at all; and/or 

stop activities, including any commercial activities, relating to the affected products, which could include a 
recall of the affected products and/or a cessation of sales in the future. 

The costs of defending an intellectual property claim could be substantial and could materially adversely affect our 
business, financial condition and results of operations, even if we successfully defend such claim. Moreover, even if 
we believe that we do not infringe a validly existing third-party patent, we may choose to license such patent, which 
would result in associated costs and obligations. We may also incur costs in connection with an obligation to indemnify 
a distributor, licensor or other third party. 

The intellectual property positions of animal health medicines and vaccines businesses frequently involve complex 
legal and factual questions, and an issued patent does not guarantee us the right to practice the patented technology 
or  develop,  manufacture  or  commercialize  the  patented  product.  For  example,  while  we  generally  enter  into 
proprietary information agreements with our employees and third parties, which assign intellectual property rights to 
us, these agreements may not be honored or may not effectively assign intellectual property rights to us under the 
local laws of some countries or jurisdictions. We cannot be certain that a competitor or other third party does not have, 

35 

 
 
 
or  will  not  obtain  rights  to,  intellectual  property  that  may  prevent  us  from  manufacturing,  developing  or  marketing 
certain of our products, regardless of whether we believe such intellectual property rights are valid and enforceable 
or we believe we would otherwise be able to develop a more commercially successful product, which may materially 
adversely affect our business, financial condition and results of operations.  

If our intellectual property rights are challenged or circumvented, competitors may be able to take advantage 
of our R&D efforts or harm the value of our brands. 

Our long-term success depends on our ability to market innovative and competitive products. We rely and expect to 
continue to rely on a combination of intellectual property, including patent, trademark, trade dress, copyright, trade 
secret and domain name protection, as well as confidentiality and license agreements with our employees and others, 
to protect our intellectual property and proprietary rights. If we fail to obtain and maintain adequate intellectual property 
protection, we may not be able to prevent third parties from using our proprietary technologies or from marketing 
products that are very similar or identical to ours. 

Our currently pending or future patent applications may not result in issued patents, or may not be approved on a 
timely basis, if at all. Similarly, any term extensions we seek may not be approved on a timely basis, if at all. In addition, 
our issued patents, or any patents that may be issued in the future, may not contain claims sufficiently broad to protect 
us against third parties with similar technologies or products or provide us with any competitive advantage, including 
exclusivity in a particular product area. 

The validity and scope of our patent claims also may vary between countries, as individual countries have their own 
patent laws. For example, some countries only permit the issuance of patents covering a novel chemical compound 
itself, and its first use, and thus further methods of use for the same compound may not be patentable. The validity, 
enforceability, scope and effective term of patents can be highly uncertain and often involve complex legal and factual 
questions  and  proceedings  that  vary  based  on  the  local  law  of  the  relevant  jurisdiction.  Our  ability  to  enforce  our 
patents also depends on the laws of individual countries and each country’s practice with respect to enforcement of 
intellectual  property  rights.  Patent  protection  must  be  obtained  on  a  jurisdiction-by-jurisdiction  basis,  and  we  only 
pursue patent protection in countries where we think it makes commercial sense for the given product. In addition, if 
we are unable to maintain our existing license agreements or other agreements pursuant to which third parties grant 
us rights to intellectual property, including because such agreements terminate, our business, financial condition and 
results of operations could be materially adversely affected. 

Patent law reform in the U.S. and other countries may also weaken our ability to enforce our patent rights or make 
such  enforcement  financially  unattractive.  The  America  Invents  Act  permits  enhanced  third-party  actions  for 
challenging patents and implements a first-to-invent system. These reforms could result in increased costs to protect 
our  intellectual  property  or  limit  our  ability  to  obtain  and  maintain  patent  protection  for  our  products  in  these 
jurisdictions. Additionally,  certain  foreign  governments  have  indicated  that  compulsory  licenses  to  patents  may be 
granted in the case of national emergencies, which could diminish or eliminate sales and profits from those regions 
and materially adversely affect our financial condition and results of operations. 

Our trademarks and brands may provide us with a competitive advantage in the market as they may be known or 
trusted by consumers. In order to maintain the value of such brands, we must be able to enforce and defend our 
trademarks. We have pursued, and will continue to pursue, the registration of trademarks and service marks in the 
U.S. and internationally; however, enforcing rights against those who knowingly or unknowingly dilute or infringe our 
brands can be difficult. Effective trademark, service mark, trade dress or related protections may not be available in 
every  country  in  which  our  products  and  services  are  available.  Enforcement  is  especially  difficult  in  first-to-file 
countries where “trademark squatters” can prevent us from obtaining adequate protections for our brands. There can 
be  no  assurance  that  the  steps  we  have  taken  and  will  take  to  protect  our  proprietary  rights  in  our  brands  and 
trademarks will be adequate or that third parties will not infringe, dilute or misappropriate our brands, trademarks, 
trade dress or other similar proprietary rights. 

Many of our products are based on or incorporate proprietary information. We actively seek to protect our proprietary 
information, including our trade secrets and proprietary know-how, by generally requiring our employees, consultants, 
other  advisors  and  other  third  parties  to  execute  proprietary  information  and  confidentiality  agreements  upon  the 
commencement of their employment, engagement or other relationship. Despite these efforts and precautions, we 
may be unable to prevent a third party from copying or otherwise obtaining and using our trade secrets or our other 
intellectual property without authorization, and legal remedies may not adequately compensate us for the damages 

36 

 
 
 
caused by such unauthorized use. Further, others may independently and lawfully develop substantially similar or 
identical products that circumvent our intellectual property by means of alternative designs or processes or otherwise. 

The  illegal  distribution  and  sale  by  third  parties  of  counterfeit  or  illegally  compounded  versions  of  our 
products or of stolen, diverted or relabeled products could have a negative impact on our reputation and 
business. 

Third parties may illegally distribute and sell counterfeit or illegally compounded versions of our products that do not 
meet the exacting standards of our development, manufacturing and distribution processes. Counterfeit or illegally 
compounded medicines pose a significant risk to animal health and safety because of the conditions under which 
they are manufactured and the lack of regulation of their contents. Counterfeit or illegally compounded products are 
frequently unsafe or ineffective and can be potentially life-threatening to animals. Our reputation and business could 
suffer harm as a result of counterfeit or illegally compounded products which are alleged to be equivalent and/or which 
are sold under our brand name(s). In addition, products stolen or unlawfully diverted from inventory, warehouses, 
plants or while in transit; products which are not properly stored or which have an expired shelf life; and/or products 
which have been repackaged or relabeled and sold through unauthorized channels, could adversely impact animal 
health and safety, our reputation and our business. In recent years we have expanded our business more into direct 
to retailer and e-commerce channels, which may increase the risk of counterfeiting of our products. Public loss of 
confidence  in  the  integrity  of  vaccines  and/or  pharmaceutical  products  as  a  result  of  counterfeiting,  illegal 
compounding  or  theft  could  have  a  material  adverse  effect  on  our  business,  financial  condition  and  results  of 
operations. 

The misuse or off-label use of our products may harm our reputation or result in financial or other damages. 

Our products have been approved for use under specific circumstances for the treatment of certain diseases and 
conditions in specific species. There may be increased risk of product liability claims if veterinarians, farm animal 
producers, pet owners or others attempt to use our products off-label, including the use of our products in species 
(including humans) for which they have not been approved. Furthermore, the use of our products for indications other 
than those for which our products have been approved may not be effective, which could harm our reputation and 
lead to an increased risk of litigation. If we are deemed by a governmental or regulatory agency to have engaged in 
the  promotion  of  any  of  our  products  for  off-label  use,  such  agency  could  request  that  we  modify  our  training  or 
promotional materials and practices, and we could be subject to significant fines and penalties. The imposition of 
these sanctions could also affect our reputation and position within the industry. Any of these events could materially 
adversely affect our business, financial condition and results of operations.  

Unanticipated safety, quality or efficacy concerns or identified concerns associated with our products may 
harm our reputation and have an adverse impact on our performance. 

Unanticipated  safety,  quality  or  efficacy  concerns  arise  from  time  to  time  with  respect  to  animal  health  products, 
whether or not scientifically or clinically supported, potentially leading to product recalls, withdrawals or suspended or 
declining sales, as well as product liability and other claims. Regulatory actions based on these types of safety, quality 
or efficacy concerns could impact all, or a significant portion, of a product’s sales.  

For example, lawsuits seeking actual damages, injunctive relief and/or restitution for allegedly deceptive marketing 
have been filed against us arising out of the use of Seresto, a non-prescription flea and tick collar for cats and dogs, 
based on media reports alleging that the collar has caused injury and death to pets. Since that time, on July 13, 2023, 
the EPA announced the completion of its comprehensive, multi-year review of the Seresto flea and tick collar and 
confirmed  the  continued  registration  of  the  collar.  However,  if  any  similar  claims  with  respect  to  our  products  are 
resolved adversely to us, or if a regulatory agency determines that a recall or cancellation of registrations of any of 
our  products  is  necessary,  such  action  could  cause  harm  to  our  reputation,  reduce  our  product  sales,  result  in 
monetary penalties and other costly remedies against us, and could therefore have a material adverse effect on our 
business, financial condition and results of operations. 

In addition, we depend on positive perceptions of the safety, quality and efficacy of our products, and animal health 
products in general, by food producers, veterinarians and pet owners. Any concern as to the safety, quality or efficacy 
of our products, whether actual or perceived, may harm our reputation. These concerns, including those relating to 
Seresto, and the related harm to our reputation could materially adversely affect our business, financial condition and 
results of operations, regardless of whether such reports are accurate. 

37 

 
 
 
Our insurance policies may be insufficient to protect against all potential hazards or litigation claims. 

We  rely  on  a  combination  of  insurance  and  self-insurance,  and  changes  in  predictions,  assumptions  and 
interpretations could affect our operations. Insurance policies include limits and may be insufficient to protect against 
all potential hazards and risks or litigation claims. Our product liability insurance policy may not fully cover our potential 
liabilities. In addition, we may determine that we should increase our coverage, and this insurance may be prohibitively 
expensive to us or our collaborators or licensees and may not fully cover our potential liabilities. 

Breaches of our information technology systems or improper disclosure of confidential company or personal 
data, or a failure to comply with privacy laws, regulations and our contractual obligations concerning data 
privacy  or  the  security  of  certain  information,  could  have  a  material  adverse  effect  on  our  reputation  and 
operations. 

We rely on information technology systems to process, transmit and store electronic information in our day-to-day 
operations, including customer, employee and company data. The secure processing, maintenance and transmission 
of this information is critical to our operations. In addition, the legal environment surrounding information security, 
storage,  use,  processing,  transmission,  maintenance,  disclosure  and  privacy  is  demanding  with  the  frequent 
imposition of new and changing regulatory requirements. 

We store, process, and transmit certain information with third parties, including the use of cloud technologies. Our 
information systems and those of our third-party vendors are subjected to computer viruses or other malicious codes, 
unauthorized access attempts, phishing and other cyber-attacks and are also vulnerable to an increasing threat of 
continually evolving cybersecurity risks and external hazards, as well as improper or inadvertent staff behavior. Any 
potential cyber breach could result in the unauthorized access, public disclosure, loss or theft of confidential data, or 
unauthorized access to, disruption of or interference with our operations that rely on information systems. Such breach 
can  also  have  negative  consequences,  such  as  increased  costs  for  security  measures  or  remediation  costs,  and 
diversion  of  management  attention  (see  Item  1C.  Cybersecurity  for  further  discussion  of  our  risk  management, 
strategy and governance policies and procedures related to cybersecurity). 

We  are  increasingly  dependent  on  our  information  technology  systems  as  many  of  our  office  workers  who  work 
partially or primarily remotely, rely on third-party applications to perform their job duties and are processing information 
through our network via their home networks, which may be less secure. As such, our ability to effectively manage 
our business depends on the security, reliability and adequacy of our technology systems and data and the ability of 
our employees to follow our cybersecurity policies and protocols. 

Any  actual  or  perceived  access,  disclosure  or  other  loss  of  information  or  any  significant  breakdown,  intrusion, 
interruption, cyber-attack or corruption of customer, employee or company data, or our failure to comply with federal, 
state,  local  and  foreign  privacy  laws  or  contractual  obligations  with  customers,  vendors,  payment  processors  and 
other third parties, could result in legal claims or proceedings, liability under laws or contracts that protect the privacy 
of personal information, regulatory penalties, disruption of our operations and damage to our reputation, all of which 
could materially adversely affect our business, financial condition and results of operations. While we will continue to 
implement  additional  protective  measures  to  reduce  the  risk  of  and  detect  cyber-incidents,  cyber-attacks  are 
becoming more sophisticated and frequent, and the techniques used in such attacks change rapidly. Our protective 
measures may not protect us against attacks and such attacks could have a significant impact on our business and 
reputation. The costs imposed on us as a result of a cyber-attack or network disruption could be significant. Among 
others,  such  costs  could  include  increased  expenditures  on  cybersecurity  measures,  litigation,  regulatory 
investigations, fines and sanctions, lost revenues from business interruption, damage to our reputation and public 
perception and significant remediation costs. As a result, a cyber-attack or network disruption could have a material 
adverse effect on our business, financial condition and results of operations. 

We are subject to complex EHS laws and regulations. 

We are subject to various federal, state, local and foreign EHS laws and regulations. These laws and regulations 
govern  matters  such  as  the  emission  and  discharge  of  hazardous  materials  into  the  ground,  air  or  water;  the 
generation, use, storage, handling, treatment, packaging, transportation, exposure to and disposal of hazardous and 
biological materials, including recordkeeping, reporting and registration requirements; and the health and safety of 
our employees. Due to our operations, these laws and regulations also require us to obtain, and comply with, permits, 
registrations or other authorizations issued by governmental authorities. These authorities can modify or revoke our 
permits, registrations or other authorizations and can enforce compliance through fines and injunctions. 

38 

 
 
 
Given the nature of our business, we have incurred, are currently incurring and may in the future incur liabilities for 
the  investigation  and  remediation  of  contaminated  land  under  the  U.S.  Comprehensive  Environmental  Response, 
Compensation and Liability Act of 1980, as amended, or under other federal, state, local and foreign environmental 
cleanup  laws,  with  respect  to  our  current  or  former  sites,  adjacent  or  nearby  third-party  sites  or  offsite  disposal 
locations. We could be subject to liability for the investigation and remediation of legacy environmental contamination 
caused  by  historical  industrial  activity  at  sites  we  own  or  on  which  we  operate. The  costs  associated  with  future 
cleanup activities that we may be required to conduct or finance could be material. Additionally, we may become liable 
to third parties for damages, including for personal injury, property damage and natural resource damages, resulting 
from the disposal or release of hazardous materials into the environment. Such liability could materially adversely 
affect our business, financial condition and results of operations. 

Furthermore, regulatory agencies are showing increasing concern over the impact of animal health products and farm 
animal  operations  on  the  environment.  This  increased  regulatory  scrutiny  has  in  the  past  and  may  in  the  future 
necessitate that additional time and resources be spent to address these concerns in both new and existing products. 
Additionally, there has been an increased focus from our shareholders, as well as regulatory authorities both within 
the U.S. and internationally, on ESG practices and disclosures. If we fail or are perceived to fail, in any number of 
ESG matters, such as environmental stewardship, IDEA, good corporate governance, workplace conduct and support 
for  local  communities,  or  to  effectively  respond  to  changes  in,  or  new,  legal,  regulatory  or  reporting  requirements 
concerning climate change or other sustainability concerns, we may be subject to regulatory fines and penalties, and 
our reputation may suffer.  

Our  failure  to  comply  with  the  EHS  laws  and  regulations  to  which  we  are  subject,  including  any  permits  issued 
thereunder,  may  result  in  environmental  remediation  costs,  loss  of  permits,  fines,  penalties  or  other  adverse 
governmental or private actions, including regulatory or judicial orders enjoining or curtailing operations or requiring 
corrective measures, installation of pollution control equipment or remedial measures. We could also be held liable 
for  any  and  all  consequences  arising  out  of  human  exposure  to  hazardous  materials,  environmental  damage  or 
significant environmental, health and safety issues that might arise at a manufacturing or R&D facility. Environmental 
laws and regulations are complex, change frequently, have tended to become more stringent and stringently enforced 
over time and may be subject to new interpretation. It is possible that our costs of complying with current and future 
EHS  laws,  and  our  liabilities  arising  from  past  or  future  releases  of,  or  exposure  to,  hazardous  materials  could 
materially adversely affect our business, financial condition and results of operations. 

ITEM 1B. UNRESOLVED STAFF COMMENTS 

None. 

39 

 
 
 
 
 
ITEM 1C. CYBERSECURITY 

Our  business  relies  on  information  technology  (IT)  systems  to  process,  transmit  and  store  electronic  information, 
including  customer,  employee  and  company  data.  The  secure  processing,  maintenance  and  transmission  of  this 
information,  including  information  housed  both  within  an  internal  IT  system  or  with  a  third-party  and  cloud-based 
environments,  is  critical  to  our  operations.  Each  of  the  systems  utilized  in  our  business  operations  is  subject  to 
continually evolving cybersecurity risks and threats that present a risk to the continuity of our business operations, 
potential  financial  losses  and  damage  to  our  reputation,  including  a  loss  of  public  trust.  For  more  information  on 
potential risks related to cybersecurity threats and incidents, please see "Item 1A. Risk Factors – Breaches of our 
information technology systems or improper disclosure of confidential company or personal data, or a failure to comply 
with  privacy  laws,  regulations  and  our  contractual  obligations  concerning  data  privacy  or  the  security  of  certain 
information, could have a material adverse effect on our reputation and operations." 

Risk Management, Strategy and Governance 
Given the importance of the integrity and security of the information and data utilized in our day-to-day operations, 
our processes for assessing, identifying and managing material risks from cybersecurity threats is incorporated into 
our overall enterprise risk management framework. We evaluate cybersecurity risks on an ongoing basis, and both 
our executive management and Board of Directors have an overall responsibility for assessing and managing risks 
from cybersecurity threats. We have established an information security team which is structured into three areas, 
each  with  its  own  teams  and  leaders  who  report  directly  to  our  Chief  Information  Security  Officer  (CISO):  1) 
Governance, Risk and Compliance; 2) Architecture; and 3) Operations (Detect and Respond). Our information security 
team  is  responsible  for  the  design  and  execution  of  our  cybersecurity  risk  management  and  helps  executive 
management and our Board of Directors stay informed about and monitor the prevention, detection, mitigation and 
remediation of cybersecurity risks and incidents through various means, including but not limited to, briefings with 
internal security team members, threat intelligence obtained from public and private sources and alerts and reports 
produced by security tools deployed within our IT environment. Our current CISO has over 16 years of experience in 
various roles involving information technology governance and compliance, including cybersecurity, engineering and 
enterprise architecture, while our Chief Information Officer (CIO) has over 25 years of IT and cybersecurity experience. 
Our information security team includes professionals with relevant industry, educational and cybersecurity experience.  

Governance,  Risk  and  Compliance:  Our  approach  to  cybersecurity  governance,  risk  and  compliance  is  based  on 
overarching  guidelines,  standards  and  best  practices  developed  by  the  U.S.  National  Institute  of  Standards  and 
Technology  (NIST),  a  department  of  the  U.S.  Department  of  Commerce.  Our  information  security  governance 
oversees the process of coordinating the cybersecurity team(s) responsible for the mitigating of business risks posed 
by IT-related resources. Our governance framework of authority and accountability ensures prioritized initiatives have 
the  required  structure,  sponsorship  and  funding  to  appropriately  address  the  foreseen  risks.  Risk  management 
includes an assessment of the risks posed to us by an IT solution, including cloud hosted and/or other third-party 
environments and systems. Our processes also address cybersecurity risks associated with our use of third-party 
service  providers,  including  those  in  our  supply  chain  or  who  have  access  to  our  client  or  employee  data  on  our 
systems. In addition, cybersecurity considerations affect the selection and oversight of third-party service providers. 
We perform diligence on third parties, particularly those that have access to our systems, data or facilities that house 
such systems or data, and continually monitor cybersecurity threat risks identified through such diligence. 

Our risk management process assesses both the probable frequency and probable magnitude of future loss based 
on a variety of potential risks and cyber events. The information security team also periodically engages third-party 
vendors to assist with our cyber threat detection and response actions, as well as to ensure our processes related to 
information security and defense against cybersecurity threats are appropriately designed and implemented to best 
prevent, detect and/or respond to a cyber threat or event. 

Architecture: Our information security architecture is focused on designing IT-related solutions that are foundationally 
secure.  Our  information  security  architecture  assumes  that  internal  and  external  threats  always  exist,  and  that  all 
networks are inherently hostile. Accordingly, all connections accessing business assets must first be authenticated 
and authorized. Where viable, IT services are individually secured and monitored at the source, following the principle 
of least privilege. 

40 

 
 
 
Operations (Detect and Respond): In the event of a cybersecurity incident, the Elanco Information Security Incident 
Response Plan (ISIRP) defines the roles, responsibilities, procedures and reporting processes required to respond 
effectively to cybersecurity incidents. Responses to information security incidents are led by two teams: 1) the Security 
Operations Center (SOC) team, which conducts the initial technical triage  and analysis, and 2) a cross-functional 
team of leaders from the IT, Legal, Human Resources and Finance functions (the Cyber Lead team), which is engaged 
by the CISO on an as needed basis, based on incident severity. The Cyber Lead team is tasked with determining the 
severity of a cybersecurity incident and bringing together the proper resources to lead the corporate-wide response 
to such incidents, including engaging the Company’s Disclosure Committee, in the event an incident may rise to a 
level deemed material to us. In the event an incident is escalated by the Cyber Lead team, the Disclosure Committee, 
led  by  our  Chief  Financial  Officer  and  General  Counsel,  would  evaluate  all  estimable  quantitative  and  qualitative 
factors, to determine if a Current Report on Form 8-K would be required under Item 1.05, “Material Cybersecurity 
Incidents”. 

Management’s Responsibilities 
Management is responsible for executing the Cybersecurity Risk Management, Strategy and Governance policies 
outlined above. This is done, in part, by both establishing systems, processes and controls to minimize the risk of a 
high severity cybersecurity incident as much as possible, as well as ensuring there is a formal process designed to 
identify, investigate and appropriately respond to potential cybersecurity incidents. As noted, we have established our 
ISIRP as a response tool in the event of a cybersecurity incident. The ISIRP documents the actionable steps the SOC 
team,  information  security  leadership  and  cross-functional  stakeholders  and  partners  take  when  a  cybersecurity 
incident is identified. The ISIRP covers the preparation, detection and analysis, containment, eradication, recovery 
and post-incident activities required to effectively respond to an incident.  
Once a cybersecurity incident has been identified, the SOC team performs an initial investigation to determine if the 
incident is deemed high or low severity, based upon the business and operational impacts. Any incident deemed high 
severity would result in notification by the CISO to the Cyber Lead team to determine the appropriate actions to be 
taken. This determination would be made by the Cyber Lead team based on both qualitative and quantitative factors 
regarding the extent and magnitude of the incident. If the incident is then escalated to the Disclosure Committee and 
determined to be material, a disclosure via a Current Report on Form 8-K would be made within four business days 
of the incident being identified as such. Through December 31, 2023, there have been no cybersecurity incidents 
deemed to have had a material impact on our results of operations or financial condition. Our Board of Directors would 
also be notified of any high severity incidents that are determined to be material, concurrently with the notification to 
the Disclosure Committee, and would be kept apprised of actions taken in response to such incidents. 
Our information security team is also responsible for cybersecurity awareness and education across the company, 
including our Board of Directors. Awareness empowers users, including our employees and contractors, to be mindful 
of cybersecurity in day-to-day situations. Our cybersecurity education practices help ensure specific users have the 
appropriate security skills and competencies to help prevent and/or detect and respond to a cyber threat. Formal 
training is delivered and measured throughout our organization on a routine, ongoing basis, and dedicated training is 
delivered  to  all  new  employees  and  contractors  through  our  onboarding  process.  Targeted  and  company-wide 
communications,  as  well  as  simulated  phishing  campaigns  and  tabletop  exercises  are  also  routinely  executed  to 
promote ongoing awareness, preparation and education about cyber threats. 

Board of Directors’ Responsibilities 
Our  Board  of  Directors  actively  oversees  our  cybersecurity  management  processes,  including  appropriate  risk 
mitigation strategies, systems, processes and controls. Our CISO meets with the Audit Committee of the Board of 
Directors and separately with the full Board of Directors at least twice annually to discuss the status of policies and 
procedures related to information security. Discussions with the Audit Committee and the full Board of Directors focus 
on any notable incidents and incident responses, updates on known or perceived cyber threats and the information 
security team's recent actions taken in response to such incidents and threats. In addition, our Board of Directors and 
the Audit Committee also receive updates from the CISO and/or our CIO on an ad-hoc or as-requested basis. Any 
incidents  or  changes  to  our  process  of  identifying  and  responding  to  potential  cybersecurity  incidents  would  be 
included within these materials. According to our ISIRP, our Board of Directors would also be notified of any high 
severity incidents deemed material, simultaneously with the notification to the Disclosure Committee, and would be 
kept apprised of actions taken in response to such incidents. 

41 

 
 
 
ITEM 2. PROPERTIES 

The address of our global headquarters is currently 2500 Innovation Way, Greenfield, IN 46140. We plan to relocate 
our global headquarters to a new office building in Indianapolis, Indiana, with occupancy expected in 2025.  

Our global manufacturing network is comprised of 18 manufacturing sites. Our largest manufacturing site is located 
in Clinton, Indiana. Our global manufacturing network is also supplemented by approximately 140 CMOs.  

We  have  R&D  operations  co-located  with  certain  of  our  manufacturing  sites  to  facilitate  the  efficient  transfer  of 
production  processes  from  our  laboratories  to  manufacturing.  In  addition,  we  maintain  R&D  operations  at  non-
manufacturing  locations  in  the  U.S.,  U.K.,  Germany,  Australia,  Brazil,  China,  India  and  Switzerland.  Our  R&D 
headquarters is currently located in Greenfield, Indiana and will relocate to Indianapolis, Indiana when we relocate 
our global headquarters, expected in 2025.  

We own or lease various additional properties for other business purposes, including office space, warehouses and 
logistics  centers.  We  believe  our  existing  properties,  as  supplemented  by  CMOs,  are  adequate  for  our  current 
requirements and our operations in the near future.  

ITEM 3. LEGAL PROCEEDINGS 

Information pertaining to certain legal proceedings is provided in "Item 8. Financial Statements and Supplementary 
Data — Note 16: Commitments and Contingencies" and is incorporated by reference herein. 

ITEM 4. MINE SAFETY DISCLOSURES 

Not applicable. 

42 

 
 
 
 
 
 
PART II 

ITEM  5.  MARKET  FOR  THE  REGISTRANT'S  COMMON  EQUITY,  RELATED 
STOCKHOLDER  MATTERS,  AND 
ISSUER  PURCHASES  OF  EQUITY 
SECURITIES 

Market Information 
On  September  20,  2018,  our  common  stock  began  trading  on  the  New  York  Stock  Exchange  under  the  symbol 
“ELAN.” On January 30, 2020, our tangible equity units (TEUs) began trading on the New York Stock Exchange under 
the symbol “ELAT.” The TEUs were delisted from trading when they converted to shares of our common stock as 
scheduled on February 1, 2023.  

Holders 

There were 210 holders of record of our common stock as of February 21, 2024. This does not include the number of 
shareholders who hold shares of our common stock through banks, brokers or other financial institutions. 

Dividend Policy 

We do not anticipate paying dividends on our common stock in the foreseeable future; however, we may change our 
dividend policy at any time.  

Performance Graph 

The following graph compares the return on Elanco's common stock with that of the S&P 500 Stock Index and the 
S&P 500 Pharmaceuticals Index over the five-year period ended on December 31, 2023. The graph assumes that 
$100  was  invested  on  December  31,  2018,  in  Elanco  common  stock,  the  S&P  500  Index  and  the  S&P  500 
Pharmaceuticals Index. The graph measures total shareholder return, which takes into account both stock price and 
dividends. It assumes that dividends paid by a company are reinvested in that company’s stock. 

43 

 
 
 
         
December 
31, 2018   

December 
31, 2019   

December 
31, 2020   

December 
31, 2021   

December 
31, 2022   

December 
31, 2023 

  $  100.00   $  93.40   $  97.27   $  90.01   $  38.76   $  47.26  
    100.00     131.47     155.65     200.29     163.98     207.04  
    100.00     115.09     123.75     155.62     168.77     169.33  

Elanco Animal Health Inc. 

S&P 500 Index 

S&P 500 Pharmaceuticals Index 

ITEM 6. (RESERVED) 

Not applicable. 

44 

 
 
 
 
 
 
ITEM  7.  MANAGEMENT'S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL 
CONDITION AND RESULTS OF OPERATIONS 

Introduction 

Management’s discussion and analysis of financial condition and results of operations (MD&A) is intended to assist 
the reader in understanding and assessing significant changes and trends related to our financial position and results 
of operations. This discussion and analysis should be read in conjunction with the consolidated financial statements 
and accompanying footnotes in Item 8 of Part II of this Form 10-K. Certain statements in this Item 7 of Part II of this 
Form  10-K  constitute  forward-looking  statements.  Various  risks  and  uncertainties,  including  those  discussed  in 
"Forward-Looking Statements" and Item 1A. “Risk Factors,” may cause our actual results, financial position and cash 
generated from operations to differ materially from these forward-looking statements.  

Business Overview 

Elanco is a global leader in animal health, dedicated to innovating and delivering products and services to prevent 
and treat disease in farm animals and pets. Our diverse, durable product portfolio is sold in more than 90 countries 
and serves animals across many species, primarily: dogs and cats (collectively, pet health) and cattle, poultry, swine, 
sheep and aqua (collectively, farm animal). With a heritage dating back to 1954, we consistently innovate to improve 
the health of animals and to benefit our customers while fostering an inclusive, cause-driven culture for our employees. 
We operate our business in a single segment, directed at advancing the well-being of animals, people and the planet, 
enabling us to realize our vision of Food and Companionship Enriching Life. 

Our diverse product portfolio of approximately 200 brands helps make us a trusted partner to pet owners, veterinarians 
and farm animal producers. Our products are generally sold worldwide to third-party distributors and independent 
retailers, and directly to farm animal producers and veterinarians. In recent years, we have expanded our omnichannel 
presence in both the veterinary clinic and in retail markets, including e-commerce. 

Product Development and Regulatory Update 

A key element of our targeted value creation strategy is to drive revenue growth through portfolio development and 
product innovation. We continue to pursue the development of new chemical and biological molecules, as well as 
additional  registrations  and  indications  for  current  products.  Our  future  growth  and  success  depend  on  both  our 
pipeline of new products, including new products we develop internally, develop with partners or that we are able to 
obtain through licenses or acquisitions, and the life cycle management of our existing products. We believe we are 
an industry leader in animal health R&D, with a track record of successful product innovation, business development 
and  commercialization.  For  example,  in  2023  we  received  conditional  approval  from  the  USDA  and  launched  our 
canine parvovirus monoclonal antibody treatment in the U.S. This product is the first and only approved therapeutic 
solution to treat canine parvovirus, one of the most contagious and deadly viruses to dogs, if not treated. 

Seresto: On July 13, 2023, the EPA announced its completion of a comprehensive, multi-year review, with support 
from the FDA, of the Seresto flea and tick collar and confirmed the continued registration of the collar. As part of the 
EPA’s scientific review process, the agency analyzed incident data including third-party assessments and compared 
data to other EPA-registered pet products. Based on comprehensive data from the study, the EPA concluded that 
Seresto continues to meet all the EPA’s standards for registration under FIFRA, which ensures that products do not 
pose an unreasonable risk of harm. We believe the EPA's conclusions align with those of authorities worldwide, with 
Seresto  being  approved  for  use  in  more  than  80  countries  and  supported  by  veterinary  professionals  around  the 
globe. The robust scientific evidence continues to support Seresto's safe use. 

Other Key Trends and Factors Affecting Our Results of Operations  

Acquisition and Integration Activity: In 2023 we acquired certain U.S. marketed products, pipeline products, inventory 
and an assembled workforce from NutriQuest, LLC (NutriQuest) and certain assets including inventory and distribution 
rights  for  certain  marketed  products  from  NutriQuest  Nutricao  Animal  Ltda  (NutriQuest  Brazil).  Additionally,  as 
previously disclosed, in April 2023 we successfully completed the integration of the Bayer Animal Health business 
into our ERP system. We incurred costs totaling $93 million in 2023 related to integration activities, including the build 

45 

 
 
 
 
out of processes and systems to support our global organization. We anticipate some additional costs through early 
2024 as we finalize these integration activities. 

Macroeconomic Factors: Our operations are exposed to and are impacted by various global macroeconomic factors. 
We  face  continuing  market  and  operating  challenges  across  the  globe  due  to,  among  other  factors,  the  Russia-
Ukraine conflict, conditions related to the COVID-19 pandemic, supply chain disruption, higher interest rates, foreign 
currency  exchange  rate  volatility  and  inflationary  pressures.  Continued  evolution  of  these  conditions  has  led  to 
economic slowdowns in certain countries and/or regions and volatility in consumer behavior. We anticipate global 
macroeconomic pressures to continue in 2024. 

Russia-Ukraine Conflict: As a global animal health leader, we have an obligation to support the health of animals and 
people. At the center of that work is ensuring access and availability of food and avoiding the spread of disease. At 
this  time,  we  are  limiting  our  business  in  Russia  to  only  the  essential  products  that  support  these  needs,  while 
complying with all imposed sanctions. We do not currently manufacture products in Russia, but we continue to support 
the health of animals and people in the country. We have entered into an agreement pursuant to which we will supply 
raw material inventories to an entity in Russia that will manufacture its own products, which we will then distribute, 
because of new laws requiring products sold in Russia to be produced there as well. We do not conduct business 
with  the  Russian  government.  During  2023,  revenue  from  Russian  and  Ukrainian  customers  represented 
approximately 1% of our consolidated revenue. Assets held in Russia as of December 31, 2023, represented less 
than 1% of our consolidated assets. 

Seasonality: While many of our products are sold consistently throughout the year, we do experience seasonality in 
our pet health business due to increased demand for certain parasiticide product offerings in the first half of the year. 
For example, based upon historical results, approximately 75% and 60% of total annual revenue contributed by our 
higher-margin parasiticide products Seresto and Advantage Family, respectively, typically occurs during the first half 
of the year, which is reflective of the flea and tick season in the Northern Hemisphere. 

Goodwill impairment: Given the sharp increase in long-term treasury rates in the third quarter of 2023, we assessed 
our long-lived assets for impairment, concluding that qualitative impairment indicators (i.e., a triggering event) existed 
as of September 30, 2023, for certain indefinite-lived assets, including goodwill. Accordingly, we performed an interim 
quantitative  goodwill  impairment  test.  Significant  management  judgment  was  required  in  estimating  our  reporting 
unit’s fair value and in the creation of forecasts of future operating results that were used in the discounted cash flow 
method  of  the  income  approach  valuation.  These  included,  but  were  not  limited  to,  estimates  and  assumptions 
regarding our future cash flows, revenue growth and other profitability measures such as gross margin and EBITDA 
margin, and the determination of an appropriate discount rate. We made these significant judgments based on our 
historical experience, relevant market size, historical pricing and expected industry trends. 

Due principally to the sharp increase in long-term treasury rates, which led to an increased discount rate assumption 
relative to prior assessments, our quantitative test resulted in a $1,042 million pre-tax impairment charge. While we 
believe  the  estimates  and  assumptions  underlying  our  goodwill  impairment  test  were  reasonable  in  view  of  all 
available information, and while no further impairment charges were recorded during the fourth quarter of 2023, future 
changes in our discount rate assumption, whether driven by increases in long-term treasury rates or other factors, or 
future changes in other significant assumptions or the use of alternative estimates and assumptions, could have a 
significant impact on our reporting unit's estimated fair value, exposing us to further goodwill impairment losses. For 
additional information regarding this goodwill impairment, see Note 11. Goodwill and Intangibles to the consolidated 
financial statements. 

Subsequent Events 

Announced sale of aqua business: On February 5, 2024, we entered into an agreement to sell our aqua business to 
a subsidiary of Merck Animal Health for approximately $1.3 billion in cash, payable at closing, which we currently 
anticipate to occur around mid-year 2024. Our aqua business includes products across both warm-water and cold-
water species and generated $175 million in revenue during each of the years ended December 31, 2023 and 2022. 
Upon closing of this sale, we intend to use the after-tax cash proceeds to accelerate our debt paydown efforts, creating 
balance sheet flexibility and lower future interest expense, which will allow us to prioritize our investments in larger 
markets  with  greater  long-term  earnings  potential.  The  closing  of  the  agreement  is  subject  to  customary  closing 
conditions, including the receipt of applicable antitrust approvals. If the agreement is terminated due to failure to obtain 
required antitrust approvals, subject to certain conditions, Merck Animal Health will be required to pay us a termination 

46 

 
 
 
fee  of  $55  million  in  cash.  See  Note  19.  Subsequent  Events  to  the  consolidated  financial  statements  for  further 
information. 

Approved restructuring plan: In February 2024 our Board of Directors authorized a restructuring plan (the restructuring 
plan) to improve operational efficiencies and better align our organizational structure with current business needs, top 
strategic priorities and key growth opportunities. Specifically, the restructuring plan is intended to reallocate resources 
by shifting international resources from farm animal to pet health as we plan for the global launches of certain potential 
blockbuster products currently under regulatory review. Further, the restructuring plan is expected to result in changes 
in how we operate in and sell into the Argentina market, among others, which we anticipate will reduce our foreign 
currency exposure.  

The restructuring plan will result in the elimination of approximately 420 personnel across our global organization. 
Expected  pre-tax charges associated with  the  restructuring  plan  total  $50  to  $55 million  in  2024,  including  $40  to 
$45 million  of  cash-based  severance  costs,  the  majority  of  which  will  be  paid  in  2024.  The  restructuring  plan  is 
expected  to  result  in  annualized  net  savings  of  $30  to  $35 million.  See  Note  19.  Subsequent  Events  to  the 
consolidated financial statements for further information.  

Results of Operations 

The following discussion and analysis of the consolidated statements of operations should be read along with the 
consolidated financial statements and the notes thereto included in Item 8. Financial Statements and Supplementary 
Data. For results of operations discussions related to years ended December 31, 2022 and 2021, refer to Item 7 of 
Part II in our Annual Report on Form 10-K for the year ended December 31, 2022, filed with the SEC on March 1, 
2023. Our results of operations for the periods presented below may not be comparable with prior periods or with our 
results of operations in the future due to many factors, including but not limited to the factors identified in "Key Trends 
and Factors Affecting Our Results of Operations" above.  

(Dollars in millions) 
Revenue  

Costs, expenses and other: 

Cost of sales 

% of revenue 
Research and development 

% of revenue 
Marketing, selling and administrative 

% of revenue 
Amortization of intangible assets 

% of revenue 
Asset impairment, restructuring and other special charges 
Goodwill impairment 
Interest expense, net of capitalized interest 

Other expense, net 
Loss before income taxes 

% of revenue 

Income tax expense 
Net loss 

Certain amounts and percentages may reflect rounding adjustments. 

NM - Not meaningful 

47 

Year Ended December 31, 
2022 
4,411    —% 

2023 
4,417    $ 

  % Change 

  $ 

1,931 

 44 %   
327 

 7 %  

1,285 

 29 %  
548 

 12 %  
127 

1,042 

277 

75 
(1,195)     
 (27) %  
36 
  $  (1,231)    $ 

1,913   
 43 %   
321   
 7 %   
1,265   
 29 %   
528   
 12 %   
183   
—   
241   
32   
(72)   
 (2) %  
6   
(78)   

1% 

2% 

2% 

4% 

(31)% 
NM 
15% 
134% 
NM 

NM 
NM 

 
 
 
 
 
 
 
   
  
 
 
   
    
 
 
   
    
 
 
   
    
 
 
   
    
 
 
   
    
   
    
   
    
   
    
   
 
 
   
    
Revenue 

As a global company, our products are sold in more than  90 countries, and as a result significant portions of our 
revenue and expenses are recorded in currencies other than the U.S. dollar. As a result, our revenue is influenced by 
changes in foreign currency exchange rates. For the years ended December 31, 2023 and 2022, approximately 51% 
of our revenue was denominated in foreign currencies. Foreign currency movements decreased revenue by 1% and 
4% for the years ended December 31, 2023 and 2022, respectively, compared to the prior years. 

Further, increases or decreases in inventory levels in our distribution channels can positively or negatively impact our 
revenue results, leading to periodic variations in revenue. This can be a result of various factors, such as end customer 
demand,  new  customer  contracts,  heightened  and  generic  competition,  the  need  for  certain  inventory  levels,  our 
ability to renew distribution contracts with expected terms, our ability to implement commercial strategies, regulatory 
restrictions, unexpected customer behavior, proactive measures taken by us in response to shifting market dynamics, 
payment terms we extend, which are subject to internal policies, blackout shipping periods due to system downtime, 
implementations and integrations and procedures and environmental factors beyond our control. 

On a global basis, our revenue by product category for the years ended December 31 is summarized as follows: 

(Dollars in millions) 
Pet Health 
Farm Animal 
Subtotal 

Contract Manufacturing (2) 

Total 

Note: Numbers may not add due to rounding 

Revenue 

% of Total Revenue 

Increase (Decrease) 

2023 

2022 

2023 

2022 

  $ Change   % Change  

  $  2,104    $  2,138   
    2,271      2,219   
    4,375      4,357   
54   
42     
  $  4,417    $  4,411   

 48 %  
 51 %  
 99 %  
 1 %  
 100 %  

 48 %   $ 
 50 %    
 99 %    
 1 %    
 100 %   $ 

(2)% 
(34)  
52   
2% 
18    —% 
(12)  

(22)%   

6    —% 

CC (1) 
(1)% 
4% 
2% 
(21)% 
1% 

(1)  Constant Currency (CC), a non-GAAP measure, is defined as revenue growth excluding the impact of foreign exchange rates. The calculation 
assumes the same foreign currency exchange rates that were in effect for the comparable prior year were used in translation of the current 
period results. We believe this metric provides a useful comparison to previous periods.  

(2)  Represents revenue from arrangements in which we manufacture products on behalf of a third-party.  

On a global basis, the effect of price, foreign currency exchange rates and volumes on changes in revenue for the 
year ended December 31, 2023, as compared to the prior year, was as follows: 

(Dollars in millions) 

Pet Health 
Farm Animal 
Subtotal 
Contract Manufacturing 

Total 

Note: Numbers may not add due to rounding 

  Revenue   
  $  2,104   
2,271   
4,375   

Price 
4% 
4% 
4% 
42    —% 
4% 

  $  4,417   

  FX Rate    Volume   

(1)% 
(2)% 
(1)% 
(1)% 
(1)% 

(5)% 
  —% 
(2)% 
(21)%   
(3)% 

Total 
(2)% 
2% 
  —% 

(22)%   

  —% 

CC 
(1)% 
4% 
2% 
(21)% 
1% 

Pet health revenue decreased $34 million, or 2%, driven by a decrease in volume and an unfavorable impact from 
foreign exchange rates, partially offset by an increase in price. On a constant currency basis, the decrease of 1% was 
primarily attributable to declines in demand for retail parasiticide products in Spain and continued competitive pressure 
on certain products in the U.S. veterinary channel. These factors were partially offset by increased pricing, higher 
demand for over-the-counter products in the U.S. and increased revenue from new products.  

48 

 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
   
 
 
 
   
 
 
 
   
 
 
 
 
 
Farm animal revenue increased $52 million, or 2%, driven by an increase in price, which was partially offset by an 
unfavorable impact from foreign exchange rates. On a constant currency basis, the increase of 4% was primarily 
attributable to pricing increases, as volumes were flat year over year. Revenue from new products, led by Experior, 
revenue  from  our  acquisitions  of  NutriQuest  and  NutriQuest  Brazil  and  strength  in  poultry  globally  were  offset  by 
reduced  sales  of  cattle  implants  due  to  U.S.  regulatory  changes,  a  less  favorable  environment  for  sheep  due  to 
weather conditions and generic competition.  

Cost of Sales 

(Dollars in millions) 
Cost of sales 
% of revenue 
Cost  of  sales  increased  $18  million  in 2023 as  compared  to  2022,  and cost  of  sales  as  a percentage of  revenue 
increased  from  43%  to  44%  year-over-year,  reflecting  the  impact  of  inflation  and  planned  reduced  throughput  at 
certain manufacturing sites in support of efforts to reduce inventory balances on-hand and improve cash conversion. 

  % Change 

  $  1,931 

  $  1,913 

 43 %   

 44 %  

 1 % 

2023 

Year Ended December 31, 
2022 

Research and Development 

(Dollars in millions) 
Research and development 
% of revenue 
R&D expenses increased $6 million, or 2%, in 2023 compared to 2022, primarily driven by higher employee-related 
expenses and project costs. 

  % Change 

 7 %   

 7 %  

 2 % 

2023 

321 

327 

  $ 

  $ 

Year Ended December 31, 
2022 

Marketing, Selling and Administrative 

(Dollars in millions) 

Year Ended December 31, 
2022 

  % Change 

2023 

Marketing, selling and administrative 
% of revenue 
Marketing, selling and administrative expenses increased $20 million, or 2%, in 2023 compared to 2022, primarily 
driven  by  increases  in  marketing  and  promotional  spend  relating  to  our  U.S.  Pet  Health  business  and  employee-
related expenses.  

  $  1,285 

   $  1,265 

 29 %   

 29 %  

 2 % 

Amortization of Intangible Assets 

(Dollars in millions) 
 4 % 
Amortization of intangible assets 
Amortization of intangible assets increased $20 million in 2023 compared to 2022, due to the addition of amortization 
of intangible assets recorded from our acquisitions of certain assets of NutriQuest and NutriQuest Brazil in 2023, as 
well as the impact of foreign currency exchange rates. 

  % Change 

548    $ 

528   

2023 

  $ 

Year Ended December 31, 
2022 

Asset Impairment, Restructuring and Other Special Charges 

(Dollars in millions) 

Year Ended December 31, 
2022 

  % Change 

2023 

 (31) % 
Asset impairment, restructuring and other special charges 
Asset impairment, restructuring and other special charges decreased $56 million in 2023 compared to 2022, primarily 
due  to  lower  impairment  charges  and  costs  associated  with  the  implementation  of  new  systems,  programs  and 
processes  resulting  from  the  integration  of  Bayer  Animal  Health.  For  additional  information  regarding  our  asset 
impairment, restructuring and other special charges, see Note 5. Asset Impairment, Restructuring and Other Special 
Charges to the consolidated financial statements. 

183   

127    $ 

  $ 

49 

 
 
 
 
 
 
 
 
  
 
 
 
 
 
  
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
Goodwill Impairment 

(Dollars in millions) 

Goodwill impairment 

Year Ended December 31, 
2022 

  % Change 

2023 

  $ 

1,042    $ 

—   

NM 

As discussed above, due principally to the sharp increase in long-term treasury rates in the third quarter of 2023, 
which we considered a triggering event, we performed a quantitative goodwill impairment test, which resulted in a 
$1,042 million pre-tax impairment charge. For additional information, see Note 11. Goodwill and Intangibles to the 
consolidated financial statements. 

Interest Expense, Net of Capitalized Interest 

(Dollars in millions) 

Year Ended December 31, 
2022 

  % Change 

2023 

 15 % 
Interest expense, net of capitalized interest 
Interest expense, net of capitalized interest increased $36 million in 2023 compared to 2022, primarily due to higher 
interest  rates  on  our  outstanding  variable-rate  debt  and  rate  increases  on  our  Senior  Notes  driven  by  credit 
downgrades. Interest expense, net of capitalized interest in 2022 included $20 million of debt extinguishment charges, 
which did not recur in 2023.  

241   

277    $ 

  $ 

Other Expense, Net 

(Dollars in millions) 

Year Ended December 31, 
2022 

  % Change 

2023 

 134 % 
Other expense, net 
Other  expense,  net  increased  $43 million  in  2023,  as  compared  to  2022,  due  primarily  to  settlement  provisions 
recorded in 2023 of $15 million related to the Seresto class action lawsuits and $12.5 million for a possible resolution 
or settlement with the SEC related to potential disclosure claims (see Note 16. Commitments and Contingencies to 
the consolidated financial statements for further information). Foreign currency exchange losses were also higher in 
2023, as we incurred losses of $50 million, compared to foreign currency exchange losses of $38 million in 2022. 
Foreign currency losses in 2023 included $40 million of transaction losses, of which $25 million related to our affiliate 
in  Argentina,  and  devaluation  losses  of  $10 million  related  to  the  hyperinflationary  environments  in  Turkey  and 
Argentina.  

32   

  $ 

75    $ 

Income Tax Expense  

(Dollars in millions) 

Income tax expense 

Year Ended December 31, 
2022 

  % Change 

2023 

36     

NM 

6   
 (8) %  

Effective tax rate 
Income tax expense was $36 million in 2023 compared to $6 million in 2022, and the effective tax rate was (3)% in 
2023, compared to (8)% in 2022. The negative effective tax rate in 2023 differed from the statutory income tax rate 
primarily due to the recognition of the aforementioned goodwill impairment charge that was non-deductible for income 
tax purposes in most of the impacted jurisdictions and an increase in our valuation allowance during the year, primarily 
attributable to the likelihood of not realizing the benefit of U.S. federal and state deferred tax assets due to pre-tax 
losses. 

 (3) %  

Income tax expense for the year ended December 31, 2022, included a $17 million income tax benefit reclassified 
from accumulated other comprehensive loss due to the termination of interest rate swaps and a $16 million Brazil 
income tax refund claim resulting from a Brazil Supreme Court decision rendered in 2022 that determined certain 
Brazil state value-added tax (VAT) incentives were not subject to federal tax. For additional information, see Note 15. 
Income Taxes to the consolidated financial statements. 

50 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
Liquidity and Capital Resources  

Our primary sources of liquidity are cash on hand, cash flows from operations and funds available under our credit 
facilities. As a significant portion of our business is conducted internationally, we hold a significant portion of cash 
outside the U.S. We monitor and adjust the amount of foreign cash based on projected cash flow requirements. Our 
ability to use foreign cash to fund cash flow requirements in the U.S. may be impacted by local regulations and, to a 
lesser  extent,  the  income  taxes  associated  with  transferring  cash  to  the  U.S.  We  intend  to  indefinitely  reinvest 
substantially all foreign earnings for continued use in our foreign operations. As our business evolves, we may change 
that strategy, particularly to the extent we identify tax efficient reinvestment alternatives for our foreign earnings or 
change our cash management strategy. 

We believe our primary sources of liquidity are sufficient to fund our short-term and long-term existing and planned 
capital  requirements,  which  include  working  capital  obligations,  funding  existing  marketed  and  pipeline  products, 
capital expenditures, business development in our targeted areas, short-term and long-term debt obligations, such as 
principal and interest payments, as well as interest rate swaps, operating lease payments, purchase obligations and 
costs associated with business integrations. As of December 31, 2023, we had cash and cash equivalents of $352 
million and unused borrowing capacity on our Revolving Credit Facility of approximately $550 million, of which an 
incremental $50 million was drawn in February 2024. In addition, we have the ability to access capital markets to 
obtain debt financing for longer-term funding, if required. Further, we believe we have sufficient cash flow and liquidity 
to remain in compliance with our debt covenants. 

Our ability to meet future funding requirements may be impacted by macroeconomic, business and financial volatility. 
As  market  conditions  change,  we  will  continue  to  monitor  our  liquidity  position.  However,  a  challenging  economic 
environment or an economic downturn may impact our liquidity or ability to obtain future financing. See "Item 1A. Risk 
Factors - We have substantial indebtedness." 

Cash Flows  

The following table provides a summary of cash flows from operating, investing and financing activities for the periods 
presented: 
(Dollars in millions) 
Net cash provided by (used for): 

Year Ended December 31, 
2022 

$ Change 

2023 

Operating activities 
Investing activities 
Financing activities 

Effect of exchange rate changes on cash and cash equivalents 
Net increase (decrease) in cash and cash equivalents 

Operating Activities 

$ 

$ 

271    $ 
(169)    
(83)    
(12)    
7    $ 

452    $ 
(179)    
(549)    
(17)    
(293)   $ 

(181) 
10  
466  
5  
300  

Cash provided by operating activities decreased $181 million to $271 million for the year ended December 31, 2023, 
compared  to  $452  million  for  the  year  ended  December 31,  2022. The  decrease  in  cash  from  operating  activities 
primarily  related  to  a  decrease  of  $150  million  of  proceeds  from  interest  rate  swap  settlements  year-over-year. 
Additionally, a larger net loss in 2023 (excluding non-cash goodwill and other impairment charges) was partially offset 
by year-over-year changes in working capital.  

Investing Activities 

Cash  used  for  investing  activities  decreased  $10 million  to  $169 million  for  the  year  ended  December 31,  2023, 
compared to $179 million for the year ended December 31, 2022. The decrease in cash used for investing activities 
was primarily driven by a decrease of $31 million in cash paid for property and equipment and software, which was 
partially offset by cash paid for the acquisitions of certain assets of NutriQuest and NutriQuest Brazil, totaling $19 
million, during the year ended December 31, 2023. 

Financing Activities 

Cash used for financing activities was $83 million for the year ended December 31, 2023, compared to $549 million 
for the year ended December 31, 2022. In 2023, cash used to repay long-term borrowings totaled $402 million and 
included the repayment in full of our 4.272% Senior Notes due 2023. These long-term debt repayments were partially 
offset by $200 million of net borrowings on our Revolving Credit Facility ($350 million in borrowings, net of $150 million 

51 

 
 
 
 
 
 
 
 
in repayments) and $125 million of net borrowings on our new Securitization Facility ($250 million in borrowings, net 
of $125 million in repayments). Cash used for financing activities during 2022 primarily reflected the tender offer to 
partially settle the 4.272% Senior Notes due 2023, as well as net repayments on our Revolving Credit Facility and 
repayment of indebtedness outstanding under our Term Loan B credit facility, partially offset by proceeds from our 
incremental  term  facilities  issued  in  2022.  See  Note  8.  Debt  to  the  consolidated  financial  statements  for  further 
information related to our debt related borrowing and repayment activity. 

Capital Expenditures 

Capital  expenditures,  which  we  define  as  cash  paid  for  property  and  equipment  and  software,  were  $140  million 
during  2023,  a  decrease  of  $31 million  compared  to  2022.  We  anticipate  capital  expenditures  in  2024  to  be 
approximately $180 million to $200 million. 

Description of Indebtedness 

For a complete description of our debt and available credit facilities as of December 31, 2023, see Note 8. Debt to 
the consolidated financial statements. 

Contractual Obligations 

Our contractual obligations and commitments as of December 31, 2023, are primarily comprised of long-term debt 
obligations, operating leases and purchase obligations. Our long-term debt obligations are comprised of our expected 
principal and interest obligations. Purchase obligations consist of open purchase orders as of December 31, 2023, 
and  contractual  payment  obligations  with  significant  vendors  which  are  noncancelable  and  not  contingent. These 
obligations are primarily short-term in nature. See Note 13. Leases to the consolidated financial statements for further 
discussion regarding the contractual obligations related to our new corporate headquarters in Indianapolis, Indiana. 

Critical Accounting Policies and Estimates 

The preparation of financial statements in accordance with GAAP requires us to make estimates and judgments that 
affect  the  reported  amounts  of  assets,  liabilities,  revenues  and  expenses.  These  estimates  and  underlying 
assumptions can impact all elements of our consolidated financial statements. Certain of our accounting policies are 
considered critical because these policies are the most important to the fair presentation of our financial statements, 
including  the  disclosures  thereto,  and  may  require  significant,  difficult  or  complex  judgments,  probabilities  and 
assumptions that we believe to be reasonable, but that can be inherently uncertain. If our estimates and assumptions 
are  not  representative  of  actual  outcomes,  our  results  could  be  materially  impacted.  We  regularly  evaluate  our 
estimates  and  assumptions  and  adjust  them  when  facts  and  circumstances  indicate  the  need  for  change.  Such 
changes generally would be reflected in our consolidated financial statements in the period they are determined. We 
apply estimation methodologies consistently from year to year. The following is a summary of accounting policies that 
we consider critical to the consolidated financial statements.  

Revenue Recognition  

Our gross product revenue is subject to deductions that are generally estimated and recorded in the same period the 
revenue is recognized and primarily represent revenue incentives (rebates and discounts). For estimates related to 
our revenue incentives, we use our historical experience with similar incentives programs and current sales data and 
estimates of inventory levels at our channel distributors to evaluate the impact of such programs on revenue and 
continually monitor the impact of this experience and adjust as necessary.  

Although the amounts recorded for revenue deductions are dependent on estimates and assumptions, historically our 
adjustments to actual results have not been material. The sensitivity of our estimates can vary by program, type of 
customer and geographic location. Amounts recorded for revenue deductions can result from a complex series of 
judgments about future events and uncertainties and can rely on estimates and assumptions. If any of our ratios, 
factors, assessments, experiences or judgments are not indicative or accurate predictors of our future experience, 
our results could be materially affected.  

See Note 2. Summary of Significant Accounting Policies and Note 3. Revenue to the consolidated financial statements 
for  further  discussion  regarding  our  revenue  recognition  policy  and  quantitative  information  regarding  our  rebate 
programs, respectively. 

52 

 
 
 
 
 
Acquisitions and Fair Value  

We account for the assets acquired and liabilities assumed in an acquisition based on their respective fair values as 
of  the  acquisition  date.  The  excess  of  the  purchase  price  over  the  fair  value  of  the  acquired  net  assets,  where 
applicable, is recorded as goodwill.  

The judgments made in determining estimated fair values assigned to assets acquired and liabilities assumed in a 
business combination, as well as estimated asset lives, can materially affect our consolidated results of operations. 
The  fair  values  of  intangible  assets  are  determined  using  information  available  at  the  acquisition  date  based  on 
expectations  and  assumptions  that  are  deemed  reasonable  by  management.  These  fair  value  estimates  require 
significant  judgment  with  respect  to  future  revenues  and  EBIT  margins,  use  of  working  capital,  the  selection  of 
appropriate discount rates, product mix, income tax rates and other assumptions and estimates. Such estimates and 
assumptions are determined based upon our business plans and when applicable, market participants' views of us 
and other similar companies. For significant acquisitions, we normally engage an independent valuation specialist to 
assist in valuing significant assets and liabilities.  

Impairment of Goodwill and Other Indefinite-Lived Assets  

Goodwill  and  other  indefinite-lived  intangible  assets  are  not  amortized  but  are  reviewed  at  least  annually  for 
impairment during the fourth quarter, or more frequently if there is a significant change in events or circumstances 
that indicate the fair value of our single reporting unit or other indefinite-lived asset(s) is more likely than not less than 
its carrying amount (i.e., a "triggering event"). When required, a comparison of fair value to the carrying amount of 
our asset(s) is performed to determine the amount of impairment, if any. We begin by assessing qualitative factors to 
determine  whether  it  is  more  likely  than  not  that  the  fair  value  of  our  single  reporting  unit  or  other  indefinite-lived 
asset(s) is less than its carrying value. Based on that qualitative assessment, if we conclude it is more likely than not 
that the fair value is less than its carrying value, we conduct a quantitative impairment test, which involves comparing 
the  estimated  fair  value  of  our  single  reporting  unit  or  indefinite-lived  asset(s)  to  its  carrying  value.  For  goodwill 
impairment tests, we estimate the fair value of our single reporting unit using an income approach. If the carrying 
value of the reporting unit exceeds its estimated fair value, we recognize an impairment loss for the difference. We 
also  use  an  income  approach  when  estimating  the  fair  value  of  our  other  indefinite-lived  intangible  assets,  which 
primarily represent IPR&D acquired from prior business combinations. 

Given the sharp increase in long-term treasury rates in the third quarter of 2023, we assessed our long-lived assets 
for impairment, concluding that a triggering event existed as of September 30, 2023, for certain indefinite-lived assets, 
including goodwill. Accordingly, we performed interim quantitative impairment tests of our goodwill and other indefinite-
lived assets, which resulted in a $1,042 million pre-tax goodwill impairment charge. Significant management judgment 
was required in estimating our reporting unit’s fair value and in the creation of forecasts of future operating results 
that were used in the discounted cash flow method of the income approach valuation. These included, but were not 
limited  to,  estimates  and  assumptions  regarding  our  future  cash  flows,  revenue  growth  and  other  profitability 
measures such as gross margin and EBITDA margin; and the determination of an appropriate discount rate. We made 
these significant judgments based on our historical experience, relevant market size, historical pricing and expected 
industry  trends.  While  we  believe  the  estimates  and  assumptions  underlying  our  goodwill  impairment  test  were 
reasonable in view of all available information, these assumptions are subject to change in future periods because of, 
among other things, additional information, financial information based on further historical experience, changes in 
competition,  our  investment  decisions,  volatility  in  foreign  currency  exchange  rates,  results  of  research  and 
development and changes in macroeconomic conditions, including rising long-term treasury rates and inflation. Future 
changes in our discount rate assumption, whether driven by increases in long-term treasury rates or other factors, or 
future changes in any of these other significant assumptions or the use of alternative estimates and assumptions, 
could have a significant impact on our reporting unit's estimated fair value and may expose us to further goodwill 
impairment  losses.  For  additional  information  regarding  this  goodwill  impairment,  see  Note  11.  Goodwill  and 
Intangibles to the consolidated financial statements. 

Further, during the years ended December 31, 2023, 2022 and 2021, we recorded asset impairments related to our 
other indefinite-lived intangibles of $6 million, $59 million and $55 million, respectively. For more information related 
to  our  indefinite-lived  asset  impairment  charges,  see  Note  5. Asset  Impairment,  Restructuring  and  Other  Special 
Charges to the consolidated financial statements.  

53 

 
 
 
 
Deferred Tax Asset Valuation Allowances  

We maintain valuation allowances unless it is more likely than not that all of the deferred tax asset will be realized. 
Changes in valuation allowances are typically included in our tax provision in the period of change. In determining 
whether  a  valuation  allowance  is  warranted,  we  evaluate  factors  such  as  prior  earnings  history,  expected  future 
earnings,  carryback  and  carryforward  periods  of  tax  attributes,  amount  and  availability  of  taxable  temporary 
differences and tax strategies that could potentially enhance the likelihood of realization of a deferred tax asset. The 
realizability  assessments  made  at  a  given  balance  sheet  date  are  subject  to  change  in  the  future,  particularly  if 
earnings  of  a  subsidiary  are  significantly  higher  or  lower  than  expected,  or  if  we  take  operational  or  tax  planning 
actions that could impact the future taxable earnings of a subsidiary. A change in these assumptions may result in an 
increase or decrease in the realizability of our existing deferred tax assets, and therefore a change in the valuation 
allowance, in future periods. In making such judgments, significant weight is given to evidence that can be objectively 
verified. 

As of December 31, 2023 and 2022, we had valuation allowances of $363 million and $228 million, respectively. In 
recent  years  we  have  incurred  pre-tax  losses  in  the  U.S.  primarily  as  a  result  of  impairments  and  transaction, 
restructuring, integration and other costs. As a result, we have concluded that it is “more likely than not” that a portion 
of  the  U.S.  deferred  assets  will  not  be  utilized,  and  have  recorded  valuation  allowances  of  $289 million  and 
$181 million, respectively, against these deferred tax assets. Under current tax laws, the valuation allowance will not 
limit our ability to utilize U.S. deferred tax assets provided we can generate sufficient future taxable income in the U.S. 
We anticipate we will continue to record a valuation allowance against the losses until such time as we are able to 
determine it is “more likely than not” that the deferred tax asset will be realized.  

Recently Issued Accounting Pronouncements  

For discussion of our new accounting standards, see "Item 8. Financial Statements and Supplementary Data — Note 
2. Summary of Significant Accounting Policies."  

54 

 
 
 
 
ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT 
MARKET RISK 

Foreign Exchange Risk 
We operate on a global basis and are exposed to the risk that our earnings, cash flows and equity could be adversely 
impacted  by  fluctuations  in  foreign  exchange  rates.  We  are  exposed  to  foreign  currency  exchange  risk  as  the 
functional currency financial statements of non-U.S. subsidiaries are translated to U.S. dollars. We are also subject 
to foreign currency transaction gains and losses to the extent revenue and expense transactions are not denominated 
in the functional currency of a subsidiary. We are primarily exposed to foreign exchange risk with respect to net assets 
denominated in the Euro, British pound, Swiss franc, Brazilian real, Australian dollar, Japanese yen, Canadian dollar 
and  Chinese  yuan.  Throughout  the  year  ended  December 31,  2023,  we  incurred  foreign  currency  losses  of 
$50 million,  of  which  $40 million  related  to  transaction  losses  due  to  the  effect  of  exchange  rate  changes  on 
transactions denominated in currencies other than a subsidiary's functional currency, and $10 million related to our 
application of hyperinflationary accounting for our subsidiaries in Argentina and Turkey. 

Of the $40 million of foreign currency transaction losses, $25 million related to our subsidiary in Argentina. While we 
have recently announced plans to restructure how we operate in and sell into the Argentina market, which we expect 
to significantly reduce our exposure to such foreign currency transaction losses (see Note 19. Subsequent Events to 
the consolidated financial statements for further information), our global operations continue to expose us to the risk 
of foreign currency transaction gains and losses.   

We  identify  hyperinflationary  markets  as  those  markets  whose  cumulative  inflation  rate  over  a  three-year  period 
exceeds 100%. We have applied hyperinflationary accounting for our Argentina and Turkey subsidiaries since 2018 
and 2022, respectively, and as a result, have changed their functional currencies to the U.S. dollar. During the year 
ended  December 31,  2023,  revenue  in Argentina  and Turkey  each  represented  less  than  1%  of  our  consolidated 
revenue,  and  assets  held  in Argentina  and Turkey  at  December 31,  2023,  each  represented  less  than  1%  of  our 
consolidated assets. While we anticipate our above noted plans to restructure how we operate in and sell into the 
Argentina market to mitigate the future impact of hyperinflationary accounting for this affiliate, we may in the future 
incur further currency devaluations, which could have a material adverse impact on our results of operations. 

We may enter into foreign currency forward or option derivative contracts to reduce the effect of fluctuating currency 
exchange rates in future periods. Gains and losses on these derivative contracts are recorded within other expense, 
net, and offset, in part, the impact of currency fluctuations on the underlying foreign currency denominated assets and 
liabilities. A hypothetical 10 percent adverse change in exchange rates applied to the fair values of our outstanding 
foreign  currency  derivative  contracts  as  of  December  31,  2023,  would  result  in  an  additional  unrealized  loss  of 
approximately $20 million.   

We also have a series of cross-currency fixed interest rate swaps to help mitigate the impact of currency fluctuations 
on  our  operations  in  Switzerland.  Gains  or  losses  related  to  these  instruments  due  to  spot  rate  fluctuations  are 
recorded as cumulative translation adjustments (CTA) as a component of other comprehensive income (loss). Gains 
and losses will remain in accumulated other comprehensive income (loss) until either the sale or substantial liquidation 
of the hedged subsidiary. If the U.S. dollar were to weaken against the Swiss franc by 10%, the amount of unrealized 
loss  recorded  in  CTA  related  to  these  cross-currency  fixed  interest  rate  swaps  as  of  December  31,  2023,  would 
increase  by  approximately  $130 million.  This  hypothetical  unrealized  loss  would  be  expected  to  be  offset  by  a 
corresponding foreign currency translation gain from our investment in our Swiss subsidiary.   

Interest Risk 

Effective April 1, 2023, we transitioned the reference rates used in our credit facilities so that, as a result, our variable-
rate  indebtedness  is  now  exclusively  indexed  to Term  SOFR. At  December 31,  2023,  we  held  interest  rate  swap 
agreements  with  a  notional  value  of  $3,800 million  that  had  the  economic  effect  of  modifying  this  amount  of  our 
variable-rate debt to fixed-rate. When including the variable-rate converted to fixed-rate through the use of interest 
rate swaps, as of December 31, 2023, approximately 78% of our long-term indebtedness bore interest at a fixed rate. 
We estimate that a hypothetical 1.0% increase in the applicable Term SOFR benchmark rates throughout 2023 would 
have resulted in an increase in our interest expense, net of capitalized interest, of approximately $25 million. 

55 

 
 
 
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA 

Elanco Animal Health Incorporated 
Consolidated Statements of Operations 

(in millions, except per-share data) 

Revenue 

Costs, expenses and other: 

Cost of sales 

Research and development 

Marketing, selling and administrative 

Amortization of intangible assets 

Asset impairment, restructuring and other special charges 

Goodwill impairment 

Interest expense, net of capitalized interest 

Other expense, net 

Loss before income taxes 

Income tax expense (benefit) 

Net loss 

Loss per share: 

Basic 
Diluted 

Weighted-average shares outstanding: 

Basic 
Diluted 

Year Ended December 31, 

2023 

2022 

2021 

$ 

4,417    $ 

4,411    $ 

4,764  

1,931    

327     

1,285     

548     

127     

1,042     

277     

75     

5,612     

(1,195)    

36     

$ 

(1,231)   $ 

1,913     
321     
1,265     
528     
183     
—     
241     
32     
4,483     
(72)    
6     
(78)   $ 

$ 

$ 

(2.50)   $ 
(2.50)   $ 

(0.16)   $ 
(0.16)   $ 

492.3     
492.3     

488.3     
488.3     

2,132  

369  

1,403  

556  

634  

—  

236  

5  

5,335  

(571) 

(88) 

(483) 

(0.99) 
(0.99) 

487.2  
487.2  

See notes to consolidated financial statements. 

56 

 
 
 
 
  
  
 
 
 
  
 
  
  
   
 
 
 
 
 
 
 
 
 
 
 
 
 
  
   
 
 
   
 
  
  
 
 
Elanco Animal Health Incorporated 
Consolidated Statements of Comprehensive Loss 

(in millions) 

Net loss 
Other comprehensive income (loss): 
Cash flow hedges, net of taxes 
Foreign currency translation, net of taxes 

Defined benefit pension and retiree health benefit plans, net 
of taxes 

Other comprehensive income (loss), net of taxes 
Comprehensive loss 

$ 

Year Ended December 31, 
2022 

2021 

2023 

$ 

(1,231)   $ 

(78)   $ 

(483) 

(125)    
293     

(42)    
126     
(1,105)   $ 

157     
(419)    

79     
(183)    
(261)   $ 

86  
(613) 

15  
(512) 
(995) 

See notes to consolidated financial statements. 

57 

 
 
 
 
 
 
 
 
 
  
  
 
  
  
 
 
 
 
 
Elanco Animal Health Incorporated 
Consolidated Balance Sheets 

(in millions, except share data) 

December 31, 
2023

  December 31, 
2022

Assets 
Current Assets 

Cash and cash equivalents 
Accounts receivable, net 
Other receivables 
Inventories 
Prepaid expenses and other 

Total current assets 
Noncurrent Assets 

Goodwill 
Other intangibles, net 
Other noncurrent assets 
Property and equipment, net 

Total assets 
Liabilities and Equity 
Current Liabilities 

Accounts payable 
Employee compensation 
Sales rebates and discounts 
Current portion of long-term debt 
Other current liabilities 

Total current liabilities 
Noncurrent Liabilities 
Long-term debt  
Accrued retirement benefits  
Deferred taxes 
Other noncurrent liabilities 

Total liabilities 
Commitments and Contingencies 
Equity 

Common stock, 5,000,000,000 shares authorized, no par value; 492,845,216 

Additional paid-in capital 
Accumulated deficit 
Accumulated other comprehensive loss 

Total equity 
Total liabilities and equity 

See notes to consolidated financial statements. 

58 

$ 

$ 

$ 

$ 

352    $ 
842     
168     
1,735     
310     
3,407     

5,094     
4,494     
341     
1,026     
14,362    $ 

270    $ 
157     
367     
38     
409     
1,241     

5,736     
184     
567     
411     
8,139     

345  
797  
205  
1,538  
394  
3,279  

5,993  
4,842  
378  
999  
15,491  

390  
146  
324  
388  
454  
1,702  

5,448  
161  
662  
229  
8,202  

—     
8,777     
(2,288)    
(266)    
6,223     
14,362    $ 

—  
8,738  
(1,057) 
(392) 
7,289  
15,491  

 
 
 
 
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
  
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
  
 
  
 
 
 
 
 
Total 
Equity 
303    $  8,457  
(483) 
—     
(512) 
(512)    
46  
—     
7,508  
(209)    
(78) 
—     
(183) 
(183)    
42  
—     
7,289  
(392)    
(1,231) 
—     
126  
126     
—     
39  
—     

—  
(266)   $  6,223  

Elanco Animal Health Incorporated   
Consolidated Statements of Equity 

(in millions) 

Common Stock 

  Accumulated Other Comprehensive Income (Loss)   

Shares    Amount  

Additional 
Paid-in 
Capital 

Accumulated 
Deficit 

Cash Flow 
Hedges 

Foreign 
Currency 
Translation  

Defined 
Benefit 
Plans 

Total   

December 31, 2020 
Net loss 
Other comprehensive income (loss), net of 
taxes 
Stock-based compensation activity, net 
December 31, 2021 
Net loss 
Other comprehensive income (loss), net of 
taxes 
Stock-based compensation activity, net 
December 31, 2022 
Net loss 
Other comprehensive income (loss), net of 
taxes 
Stock-based compensation activity, net 
Conversion of tangible equity units (TEUs) 
into common stock 
December 31, 2023 

471.9    $ 
—     
—     
1.2     
473.1     
—     
—     
1.1     
474.2     
—     
—     
1.4     
17.2     
492.8    $ 

—    $ 
—     
—     
—     
—     
—     
—     
—     
—     
—     
—     
—     
—    
—    $ 

8,650    $ 
—     
—     
46     
8,696     
—     
—     
42     
8,738     
—     
—     
39     
—    
8,777    $ 

(496)   $ 
(483)    
—     
—     
(979)    
(78)    
—     
—     
(1,057)    
(1,231)    
—     
—     
—    
(2,288)   $ 

(61)   $ 
—     
86     
—     
25     
—     
157     
—     
182     
—     
(125)    
—     
—    
57    $ 

360    $ 
—     
(613)    
—     
(253)    
—     
(419)    
—     
(672)    
—     
293     
—     
—    
(379)   $ 

4    $ 
—     
15     
—     
19     
—     
79     
—     
98     
—     
(42)    
—     
—     
56    $ 

See notes to consolidated financial statements. 

59 

 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Elanco Animal Health Incorporated 
Consolidated Statements of Cash Flows 

(in millions)  

Cash Flows from Operating Activities 
Net loss 
Adjustments to reconcile net loss to cash flows from operating activities:   

$ 

Depreciation and amortization 
Goodwill impairment 
Deferred income taxes 
Stock-based compensation expense 
Asset impairment and write-down charges 
Inventory fair value step-up amortization 
Loss on extinguishment of debt 
Proceeds from interest rate swap settlements 
Other non-cash operating activities, net 
Other changes in operating assets and liabilities, net of acquisitions 

Receivables 
Inventories 
Other assets 
Accounts payable and other liabilities 
Other changes in operating assets and liabilities 

Net Cash Provided by Operating Activities 
Cash Flows from Investing Activities 

Purchases of property and equipment and software 
Purchases of intangible assets 
Cash paid for acquisitions, net of cash acquired 
Other investing activities, net 

Net Cash Used for Investing Activities 
Cash Flows from Financing Activities 

Proceeds from Revolving Credit Facility 
Repayments of Revolving Credit Facility 
Proceeds from Securitization Facility 
Repayments of Securitization Facility 
Proceeds from issuance of long-term debt 
Repayments of long-term borrowings 
Funding related to construction of corporate headquarters 
Other financing activities, net 

Net Cash (Used for) Provided by Financing Activities 
Effect of exchange rate changes on cash and cash equivalents 
Net increase (decrease) in cash and cash equivalents 
Cash and cash equivalents at January 1 
Cash and cash equivalents at December 31 

$ 

Year Ended December 31, 
2022 

2021 

2023 

(1,231)   $ 

(78)   $ 

694     
1,042    
(80)    
46     
32     
2     
—     
57     
9     

(40)    
(160)    
(6)    
(94)    
—     
271     

(140)    
(14)    
(19)    
4     
(169)    

350    
(150)   
250    
(125)   
—    
(402)    
—     
(6)    
(83)    
(12)    
7     
345     
352    $ 

682     
—    
(57)    
59     
81     
—     
20     
207     
—     

14     
(269)    
(109)    
(98)    
—     
452     

(171)    
(13)    
—     
5     
(179)    

563    
(813)   
—    
—    
425    
(677)    
(15)    
(32)    
(549)    
(17)    
(293)    
638     
345    $ 

(483) 

716  
—  
(148) 
66  
345  
64  
—  
—  
11  

(35) 
29  
25  
(116) 
9  
483  

(159) 
(38) 
(342) 
9  
(530) 

500  
(250) 
—  
—  
500  
(573) 
64  
(31) 
210  
(31) 
132  
506  
638  

See notes to consolidated financial statements. 

60 

 
 
 
 
 
 
 
 
  
  
  
  
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
  
  
 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Elanco Animal Health Incorporated 
Notes to Consolidated Financial Statements 
(Tables present dollars and shares in millions, except per-share and per-unit data) 

Note 1. Background and Basis of Presentation 

Elanco Animal  Health  Incorporated  (collectively,  Elanco,  the  Company,  we,  us,  or  our)  is  a  global  animal  health 
company  that  innovates,  develops,  manufactures  and  markets  products  for  pets  and  farm  animals.  Our  diverse, 
durable portfolio of approximately 200 brands is sold in more than 90 countries and serves animals across many 
species, primarily: dogs and cats (collectively, pet health) and cattle, poultry, swine, sheep and aqua (collectively, farm 
animal). Our pet health products are generally sold worldwide to third-party distributors and retailers, as well as directly 
to veterinarians who typically then sell our products to pet owners. We primarily sell our farm animal products to third-
party distributors and to a diverse set of farm animal producers. In recent years, we have expanded our omnichannel 
presence in both the veterinary clinic and in retail markets, including e-commerce.  
Elanco was incorporated in Indiana on September 18, 2018, and prior to that was a business unit of Eli Lilly and 
Company  (Lilly).  We  operate  as  a  single  operating  segment.  Consistent  with  our  operational  structure,  our  Chief 
Executive Officer (CEO), as the chief operating decision maker (CODM), makes resource allocation and business 
process  decisions  globally  across  our  consolidated  business.  Strategic  and  resource  allocation  decisions  are 
managed globally with global functional leaders responsible for determining significant costs/investments and with 
regional leaders responsible for overseeing the execution of the global strategy. Managing and allocating resources 
at the global  corporate level enables our CEO to assess the overall level of resources available and how to best 
deploy  these  resources  across  functions,  product  types,  regional  commercial  organizations  and  research  and 
development projects in line with our overarching long-term corporate-wide strategic goals, rather than on a product 
or  geographic  basis.  Consistent  with  this  decision-making  process,  our  CEO  uses  consolidated,  single-segment 
financial information for purposes of evaluating performance, allocating resources, setting incentive compensation 
targets, as well as forecasting future period financial results.  
We  have  prepared  the  accompanying  consolidated  financial  statements  in  accordance  with  accounting  principles 
generally  accepted  in  the  United  States  (GAAP).  In  our  opinion,  the  financial  statements  reflect  all  adjustments 
(including those that are normal and recurring) that are necessary for fair presentation of the results of operations for 
the  periods  shown.  All  intercompany  balances  and  transactions  have  been  eliminated.  In  preparing  financial 
statements in conformity with GAAP, we must make estimates and assumptions that affect the reported amounts of 
assets, liabilities, revenue, expenses and related disclosures at the date of the financial statements and during the 
reporting period. Actual results could differ from those estimates. We issued our financial statements by filing with the 
Securities  and  Exchange  Commission  (the  SEC)  and  have  evaluated  subsequent  events  up  to  the  time  of  filing. 
Certain reclassifications of prior year information have been made to conform to the current year's presentation. 

Note 2. Summary of Significant Accounting Policies 

The  following  is  a  summary  of  significant  accounting  policies  used  in  the  preparation  of  the  accompanying 
consolidated financial statements. 

Estimates and Assumptions 

The preparation of financial statements in accordance with GAAP requires us to make estimates and judgments that 
affect  the  reported  amounts  of  assets,  liabilities,  revenues  and  expenses.  These  estimates  and  underlying 
assumptions  can  impact  all  elements  of  our  consolidated  financial  statements.  Our  estimates  are  often  based  on 
several  factors,  including  the  facts  and  circumstances  available  at  the  time  the  estimates  are  made,  historical 
experience, risk of loss, general economic conditions and trends and the assessment of the probable future outcome. 
Some  of  our  estimates  require  significant,  difficult  or  complex  judgments,  probabilities  and  assumptions  that  we 
believe to be reasonable but that can be inherently uncertain and unpredictable. If our estimates and assumptions 
are  not  representative  of  actual  outcomes,  our  results  could  be  materially  impacted.  We  regularly  evaluate  our 
estimates  and  assumptions  and  adjust  them  when  facts  and  circumstances  indicate  the  need  for  change.  Such 
changes generally would be reflected in our consolidated financial statements in the period they are determined. We 
apply estimation methodologies consistently from year to year. 

61 

 
 
 
 
Revenue 

We recognize revenue primarily from product sales to customers. Revenue from sales of products is recognized at 
the  point  where  the  customer  obtains  control  of  the  goods  and  we  satisfy  our  performance  obligation,  which  is 
generally once the goods have shipped and the customer has assumed title. For contract manufacturing organization 
(CMO) arrangements, we recognize revenue over time or at a point in time depending on our evaluation of when the 
customer obtains control of the promised goods or service.  

Revenue reflects the total consideration to which we expect to be entitled (i.e., the transaction price), in exchange for 
products sold, after considering various types of variable consideration, such as rebates, sales allowances, product 
returns and discounts. Provisions for rebates and discounts, as well as returns, are established in the same period 
the related sales are recognized. Significant judgments must be made in determining the transaction price for sales 
of products related to anticipated rebates, discounts and returns. The following describe the most significant of these 
judgments: 

Sales Rebates and Discounts 

•  Many of our products are sold and initially invoiced at contractual list prices. Contracts with customers often 
provide for various rebates and discounts that may differ in each contract. As a consequence, to determine 
the  appropriate  transaction  price  for  our  product  sales,  we  must  estimate  any  rebates  or  discounts  that 
ultimately will be due to the customer under the terms of our contracts. The rebate and discount amounts are 
recorded as a deduction to revenue to arrive at our net product sales during the period in which revenue is 
recognized.  

Significant judgment is involved in determining the rebate and discount amounts expected to be payable to a 
customer. In determining the appropriate accrual amount, we consider our historical experience with similar 
incentives programs and current sales data and estimates of inventory levels at our channel distributors to 
evaluate the impact of such programs on revenue. We continually monitor the impact of this experience and 
adjust our accrual amounts as necessary. Although we accrue a liability for rebates related to these programs 
at the time the sale is recorded, the rebate related to that sale is typically paid up to six months after the 
rebate  or  incentive  period  expires.  Because  of  this,  in  any  particular  period  rebate  adjustments  may 
incorporate revisions of accruals for several periods. 

Sales Returns 

•  We estimate a reserve for future product returns based on several factors, including local returns policies and 
practices, historical returns as a percentage of revenue, an understanding of the reasons for past returns, 
estimated shelf life by product and estimates of the amount of time between shipment and return. Reserves 
for sales returns are estimated and recorded in the same period as the underlying revenue recognition as a 
deduction to arrive at our net product sales and as a liability.  

Payment terms differ by jurisdiction and customer, but typically range from 30 to 120 days from date of shipment in 
most of our major jurisdictions. Revenue for our product sales has not been adjusted for the effects of a financing 
component, as we expect the period between when we transfer control of the product and when we receive payment 
will be one year or less. Any exceptions are either not material or we collect interest for payments made after the due 
date. Shipping and handling activities are considered fulfillment activities and are not considered to be a separate 
performance  obligation.  We  exclude  from  the  measurement  of  the  transaction  price  all  taxes  assessed  by  a 
governmental authority that are imposed on our sales of product and collected from a customer. 

62 

 
 
 
Allowance for Doubtful Accounts 

We provide for an allowance for doubtful accounts, which represents our best estimate of expected lifetime credit 
losses inherent in our accounts and other receivables portfolios. Our estimates include a continuing credit evaluation 
of customers' financial condition, trade accounts and other receivables aging and historical loss experience, as well 
as reasonable and supportable forecasts of future economic conditions. As of December 31, 2023 and 2022, we had 
an allowance for doubtful accounts of $18 million and $13 million, respectively.  

Inventories 

Effective October 1, 2023, we changed our method of accounting for portions of our inventories from the weighted-
average cost method to the first-in-first-out (FIFO) method. As of December 31, 2022, inventories accounted for using 
the  weighted-average  cost  method  were  approximately  30%  of  total  inventories.  We  believe  the  FIFO  method  is 
preferable because it is expected to more accurately match revenue with expenses and reflects the current value of 
inventories on the consolidated balance sheets. Additionally, it will conform the inventory valuation methodology used 
for the majority of our inventories and improve comparability with industry peers.  

We concluded this change from the weighted-average cost method to the FIFO method does not have a material 
effect  on  the  current  or  prior  periods’  financial  statements,  and  therefore,  we  have  not  applied  the  change  on  a 
retrospective basis. The  impact  on  the current  period  financial  statements  as  a result  of  recording  the cumulative 
effect of this accounting change during the year ended December 31, 2023, was not material.  

Research and Development Expenses 

Research  and  development  (R&D)  costs  are  expensed  as  incurred  and  relate  to  the  effort  associated  with  the 
discovery of new knowledge that will be useful in developing a new product or in significantly improving an existing 
product and the implementation of the research findings. R&D costs include, but are not limited to, compensation and 
benefits, facilities and overhead expense, clinical trial expense and fees paid to contract research organizations. 

We may also enter into licensing arrangements with third parties to acquire the rights to in-process research and 
development (IPR&D). These arrangements typically do not meet the definition of a business combination. In such 
arrangements, prior to regulatory approval of a product, we record upfront and milestone payments to third parties as 
expense when the event requiring the upfront or milestone payment occurs.  

Goodwill and Indefinite-lived Intangible Assets 

Goodwill represents the excess of the consideration transferred for an acquired business over the assigned fair value 
of the net assets acquired. Goodwill is not amortized, but is reviewed at least annually for impairment during the fourth 
quarter, or more frequently if there is a significant change in events or circumstances that indicate the fair value of our 
single reporting unit is more likely than not less than its carrying amount (i.e., a triggering event). When required, a 
comparison of fair value to the carrying amount of our single reporting unit is performed to determine the amount of 
impairment, if any. We begin by assessing qualitative factors to determine whether it is more likely than not that the 
fair  value  of  our  single  reporting  unit  is  less  than  its  carrying  value.  Based  on  that  qualitative  assessment,  if  we 
conclude it is more likely than not that the fair value of our single reporting unit is less than its carrying value, we 
conduct  a  quantitative  goodwill  impairment  test,  which  involves  comparing  the  estimated  fair  value  of  our  single 
reporting unit to its carrying value, including goodwill. We estimate the fair value of our single reporting unit using an 
income approach, which is a valuation technique that provides an estimate of the fair value of an asset based on 
market participant expectations of the cash flows an asset would generate over its remaining useful life. If the carrying 
value of the reporting unit exceeds its estimated fair value, we recognize an impairment loss for the difference. 

During the third quarter of 2023, there was a sharp increase in long-term treasury rates, and as a result we assessed 
our long-lived assets for impairment, concluding that a triggering event existed as of September 30, 2023, for certain 
indefinite-lived assets, including goodwill. Accordingly, we performed an interim quantitative goodwill impairment test, 
which resulted in a $1,042 million pre-tax impairment charge. The fair value of our single reporting unit was determined 
using the income approach, based on a discounted cash flow model. Significant management judgment was required 
in estimating our reporting unit’s fair value, including, but not limited to, estimates and assumptions regarding future 
cash  flows,  revenue  growth  and  other  profitability  measures  such  as  gross  margin  and  EBITDA  margin,  and  the 
determination of an appropriate discount rate. We made these judgments based on historical experience, relevant 
market  size,  historical  pricing  and  expected  industry  trends.  See  Note  11.  Goodwill  and  Intangibles  for  further 
information. 

63 

 
 
 
Similar to goodwill, indefinite-lived intangible assets, which primarily represent IPR&D acquired from prior business 
combinations and to a lesser extent, acquired trade names, are not amortized, but rather are reviewed annually for 
impairment  during  the  fourth  quarter,  or  more  frequently  in  the  event  of  a  triggering  event.  We  utilize  the  income 
method for determining the estimated fair value of indefinite-lived intangible assets upon acquiring them in a business 
combination  and  as  needed  for  our  evaluations  of  potential  impairment.  This  method  is  a  Level  3  fair  value 
measurement in the fair value hierarchy (see Note 10. Fair Value for further information) and applies a probability 
weighting that considers the risk of development and commercialization to the estimated future net cash flows derived 
from projected revenues and estimated costs. These projections are based on factors such as relevant market size, 
patent protection, historical pricing of similar products and expected industry trends. The estimated future net cash 
flows are then discounted to the present value using an appropriate discount rate. Acquired IPR&D assets are treated 
as indefinite-lived intangible assets until completion or abandonment of the projects, at which time the assets are 
tested for impairment and, if not impaired, are transferred to marketed products (see below) and amortized over their 
estimated economic life. 

Other Long-lived Assets 

We have a substantial amount of long-lived assets on our consolidated balance sheets, related to both property and 
equipment and finite-lived intangible assets.  

Property and equipment: 

•  Property and equipment assets are stated at cost less accumulated depreciation. Assets placed in service 
are recorded at cost and depreciated using the straight-line method over the estimated useful life of the asset 
(12 to 50 years for buildings and 3 to 25 years for equipment), except for leasehold improvements, which are 
depreciated  over  the  shorter  of  their  economic  useful  life,  or  their  remaining  lease  term.  Repair  and 
maintenance  costs  that  do  not  extend  the  useful  life  of  the  asset  are  expensed  as  incurred.  Major 
replacements  and  significant  improvements  that  either  increase  asset  values  or  extend  useful  lives  are 
capitalized. We assess the recoverability of the carrying value of the property and equipment asset or asset 
group that includes the property and equipment whenever events or changes in circumstances indicate the 
carrying amount of the asset may not be fully recoverable. When such indications of a potential impairment 
exist, we compare the projected undiscounted cash flows to be generated by the asset (or asset group) to its 
carrying value. If the carrying amount is found to be greater, an impairment charge is recorded equal to the 
excess of the asset's carrying value over its fair value. In such an event, we also re-evaluate the remaining 
useful lives of the assets (or asset group) and modify them, as appropriate. 

Finite-lived intangible assets: 

•  Finite-lived intangible assets primarily relate to marketed products acquired or licensed from third parties and 
software.  Marketed  products  consist  of  the  amortized  cost  of  the  rights  to  assets  acquired  in  business 
combinations  and  approved  for  marketing  in  a  significant  global  jurisdiction.  The  cost  basis  of  marketed 
products  includes  both  the  initial  assigned  IPR&D  value,  as  well  as  any  associated  milestone  payments 
subsequent  to  the  marketed  products  receiving  regulatory  approval  in  a  significant  global  jurisdiction. 
Software consists of certain costs incurred in connection with obtaining or developing internal-use software, 
including payroll and payroll-related costs for employees directly associated with the internal-use software 
projects  and direct  costs  of  external  resources.  Other  finite-lived  intangible  assets  consist  primarily  of  the 
amortized cost  of  licensed  platform  technologies,  manufacturing technologies and customer  relationships. 
Intangible assets with finite lives are capitalized and amortized over their estimated economic lives, typically 
ranging from 3 to 20 years. We assess the recoverability of the carrying value of finite-lived intangible assets 
in the same manner as property and equipment, as described above. 

Advertising Expenses 

Costs  associated  with  advertising,  including  costs  for  TV,  radio  and  other  electronic  media  and  publications,  are 
generally expensed when the related advertising occurs, and are included in marketing, selling and administrative 
expenses  in  the  consolidated  statements  of  operations. Advertising  and  promotion  expenses  for  the  years  ended 
December 31, 2023, 2022 and 2021, approximated $207 million, $201 million and $248 million, respectively.   

64 

 
 
 
Foreign Currency Translation 

Operations in our subsidiaries outside the U.S. are recorded in the functional currency of each subsidiary, which is 
determined by a review of the environment where each subsidiary primarily generates and expends cash. The results 
of operations for our subsidiaries outside the U.S., where the U.S. dollar is not the functional currency, are translated 
from  functional  currencies  into  U.S.  dollars  using  the  weighted-average  currency  rate  for  the  period. Assets  and 
liabilities are translated using the period-end exchange rates. The U.S. dollar effects that arise from translating the 
net assets of these subsidiaries are recorded in other comprehensive income (loss). 

Foreign  currency  transaction  gains  and  losses  are  due  to  the  effect  of  exchange  rate  changes  on  transactions 
denominated  in  currencies  other  than  a  subsidiary's  functional  currency  and  are  recognized  in  other  income 
(expense), net, in the consolidated statements of operations in the period incurred. Transaction losses of $40 million 
and $28 million, respectively, were recorded during the years ended December 31, 2023 and 2022.  

We generally identify hyperinflationary markets as those markets whose cumulative inflation rate over a three-year 
period exceeds 100%. Translation adjustments resulting from the application of hyperinflationary accounting are also 
recognized in other income (expense), net, in the consolidated statements of operations in the period incurred.  

Other Significant Accounting Policies 

Our other significant accounting policies are described in the remaining appropriate notes to the consolidated financial 
statements. 

Implementation of New Financial Accounting Pronouncements  

The following table provides a brief description of an accounting standard adopted in the current year:  

  Effective Date 
Adoption of the 
guidance is optional and 
effective as of March 12, 
2020 through December 
31, 2024. Adoption is 
permitted at any time 
during the period on a 
prospective basis. 

Standard 
ASU 2020-04, 
Reference rate 
reform (Topic 848): 
Facilitation of the 
Effects of 
Reference Rate 
Reform on Financial 
Reporting; and 
related 
amendments 

  Description 
ASU 2020-04 provides optional 
expedients and exceptions for 
applying GAAP to contracts, hedging 
relationships and other transactions 
affected by reference rate reform if 
certain criteria are met. ASU 2021-
01 clarifies the scope of Topic 848 
so that derivatives affected by the 
discounting transition are explicitly 
eligible for certain optional 
expedients and exceptions. ASU 
2022-06 extends the period of time 
entities can utilize the reference rate 
reform relief guidance under ASU 
2020-04 from December 31, 2022 to 
December 31, 2024. 

Effect on the financial 
statements or other significant 
matters 
Effective April 1, 2023, and 
in accordance with the 
provisions outlined in our 
underlying credit 
agreements, we have 
transitioned the reference 
rate used in our credit 
facilities from the London 
Interbank Offered Rate 
(LIBOR) to the Secured 
Overnight Financing Rate 
(Term SOFR). The change 
did not have a material 
impact on our consolidated 
financial statements. 

65 

 
 
 
 
 
 
 
The following table provides a brief description of accounting standards applicable to us that we have not yet adopted:  

  Description 

  Effective Date 

ASU 2023-07 is intended to improve 
disclosure requirements related to 
reportable segments, primarily 
through enhanced disclosures about 
significant segment expenses that 
are regularly provided to the CODM 
for purposes of assessing a 
segment's profit or loss and deciding 
how to allocate resources. This new 
standard applies to all public 
entities, including entities, like us, 
with a single reportable segment. 

This new standard is 
effective for fiscal years 
beginning after 
December 31, 2023, 
and interim periods 
within fiscal years 
beginning after 
December 15, 2024, 
with early adoption 
permitted. Adoption 
requires retrospective 
application. 

ASU 2023-09 is intended to 
enhance the transparency and 
decision usefulness of income tax 
disclosures by enhancing 
information about how an entity's 
operations and related tax risks and 
its tax planning and operational 
opportunities affect its tax rate and 
prospects for future cash flows. 

The guidance is 
effective for fiscal years 
beginning after 
December 31, 2024, 
with early adoption 
permitted. Adoption 
allows for prospective 
application, with 
retrospective application 
permitted.  

Standard 
ASU 2023-07, 
Segment Reporting 
(Topic 280): 
Improvements to 
Reportable 
Segment 
Disclosures 

ASU 2023-09, 
Income Taxes 
(Topic 740): 
Improvements to 
Income Tax 
Disclosures 

Note 3. Revenue 

Effect on the financial 
statements or other significant 
matters 
We are currently 
assessing the impact ASU 
2023-07 will have on our 
consolidated financial 
statements, including our 
footnote disclosures.  

  We are currently 
assessing the impact ASU 
2023-09 will have on our 
consolidated financial 
statements, including, but 
not limited to, our Income 
Taxes footnote disclosure. 

The following table summarizes the activity in our global sales rebates and discounts liability for the years ended 
December 31:  

Beginning balance 

Reduction of revenue 

Payments 

Foreign currency translation adjustments 

Ending balance 

2023 

2022 

324    $ 

722    

(683)   

4     

367    $ 

319  

682  

(662) 

(15) 

324  

  $ 

  $ 

66 

 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
 
 
 
 
 
 
 
 
 
 
Disaggregation of Revenue  

The following table summarizes our revenue disaggregated by product category for the years ended December 31: 

Pet Health 

Farm Animal: 
Cattle 
Poultry 
Swine 
Aqua 

Total Farm Animal 
Contract Manufacturing (1) 

Revenue 

2023 

2022 

2021 

  $ 

2,104    $ 

2,138    $ 

2,350  

949     
765     
382     
175     
2,271     
42     
4,417    $ 

944     
716     
384     
175     
2,219     
54     
4,411    $ 

980  
744  
464  
144  
2,332  
82  
4,764  

  $ 

(1)  Represents revenue from arrangements in which we manufacture products on behalf of a third party. 

The following table summarizes our revenue disaggregated by geographic area for the years ended December 31: 

United States 
International 

Revenue 

2023 

2022 

2021 

  $ 

  $ 

1,983    $ 
2,434     
4,417    $ 

1,965    $ 
2,446     
4,411    $ 

2,124  
2,640  
4,764  

We have a single customer that accounted for approximately 10%, 11% and 10% of revenue for the years ended 
December 31, 2023, 2022 and 2021, respectively. Product sales with this customer resulted in accounts receivable 
of $78 million and $73 million as of December 31, 2023 and 2022, respectively.  

Adjustments to revenue recognized as a result of changes in estimates during the years ended December 31, 2023, 
2022  and  2021,  for  product  shipped  in  previous  periods  were  not  material.  Actual  global  product  returns  were 
approximately 1% of net revenue in each of the years ended December 31, 2023, 2022 and 2021. 

Note 4. Acquisitions, Divestitures and Other Arrangements 

During 2023 we completed the acquisitions of certain U.S. marketed products, pipeline products, inventory and an 
assembled workforce from NutriQuest, LLC (NutriQuest) and certain assets including inventory and distribution rights 
for certain marketed products from NutriQuest Nutricao Animal Ltda (NutriQuest Brazil). In 2021 we completed the 
acquisition of Kindred Biosciences, Inc. (KindredBio). Each of these transactions was accounted for as a business 
combination under the acquisition method of accounting. The acquisition method requires, among other things, that 
assets acquired and liabilities assumed be recognized at their fair values as of the acquisition date. The determination 
of  estimated  fair  value  requires  management  to  make  significant  estimates  and  assumptions.  The  excess  of  the 
purchase price over the fair value of the acquired net assets, where applicable, has been recorded as goodwill.  

NutriQuest U.S. Acquisition 

On January 3, 2023, we acquired NutriQuest for total purchase consideration of approximately $59 million. NutriQuest 
is a provider of swine, poultry and cattle nutritional health products to animal producers. This acquisition has helped 
us expand our existing nutritional health offerings and further our efforts to explore innovative antibiotic alternatives. 
The composition of the purchase price was as follows: 

Up-front cash consideration 
Deferred cash consideration paid January 4, 2024 
Fair value of contingent consideration 
Total purchase consideration 

67 

  $ 

  $ 

16  
5  
38  
59  

 
 
 
 
 
 
 
 
  
  
 
   
   
   
   
   
   
 
 
 
 
   
 
 
   
   
Contingent  consideration  for  this  acquisition  includes  up  to  $85 million  of  cash  consideration  payable  if  specific 
development, sales and geographic expansion milestones are achieved, as outlined in the asset purchase agreement. 
The initial fair value of this contingent consideration liability of $38 million was estimated at the acquisition date using 
a  Monte  Carlo  simulation  model,  which  represented  a  Level  3  measurement  under  the  fair  value  measurement 
hierarchy (see Note 10. Fair Value for further information).  

The following table summarizes the fair value of assets acquired as of the acquisition date: 

Inventories 
Intangible assets: 
Marketed products 
Acquired IPR&D 
Other intangible assets 
Total identifiable assets 
Goodwill 
Total consideration transferred 

$ 

$ 

3  

29  
9  
15  
56  
3  
59  

Other  intangible  assets  consist  of  customer  relationships  and  trade  names. The  acquired  definite-lived  intangible 
assets are being amortized over a weighted-average estimated useful life of approximately 12 years on a straight-line 
basis. The estimated fair values of identifiable intangible assets were determined using the income approach. Some 
of the significant assumptions inherent in the development of these valuations include the estimated net cash flows 
for each year for each asset or product (including revenues, cost of sales, R&D expenses, marketing, selling and 
administrative expenses and contributory asset charges), the appropriate discount rate necessary to measure the risk 
inherent in each future cash flow stream, the life cycle of each asset, the potential regulatory and commercial success 
risk and competitive trends impacting the asset and each cash flow stream, as well as other factors. The valuation of 
assets acquired and liabilities assumed was finalized during the fourth quarter of 2023. Revenue attributable to the 
NutriQuest acquisition for the year ended December 31, 2023, was approximately $19 million.  

NutriQuest Brazil Acquisition 

On August 1, 2023, we acquired NutriQuest Brazil for total purchase consideration of $19 million. The composition of 
the purchase price included cash paid on the closing date of approximately $3 million, with additional consideration 
payable through 2026 valued at approximately $16 million, a portion of which is contingent upon the continuation of 
certain  terms  and  conditions  set  forth  in  the  asset  purchase  agreement.  The  following  table  summarizes  the 
preliminary amounts recognized for assets acquired as of the acquisition date: 

$ 

3  
Inventories 
15  
Definite-lived intangible assets 
18  
Total identifiable assets 
1  
Goodwill 
19  
Total consideration transferred 
The acquired definite-lived intangible assets are being amortized over a weighted-average estimated useful life of 
approximately  nine  years  on  a  straight-line  basis. The  estimated  fair  values  of  identifiable  intangible  assets  were 
determined  using  the  income  approach.  The  purchase  price  allocation  for  this  acquisition  is  preliminary  as  of 
December 31, 2023, and subject to change, including the valuation of the intangible assets. The final determination 
of these amounts will be completed as soon as possible but no later than one year from the acquisition date. Neither 
revenue nor income before taxes included within our consolidated statements of operations from NutriQuest Brazil 
were material for the year ended December 31, 2023. 

$ 

68 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
KindredBio Acquisition 

On August 27, 2021, we acquired KindredBio, a publicly traded biopharmaceutical company that developed innovative 
biologics  focused  on  saving  and  improving  the  lives  of  pets,  for  aggregate  cash  purchase  consideration  of 
$444 million.  The  acquisition  of  KindredBio  continued  our  pet  health  expansion,  particularly  our  presence  in 
dermatology. Prior to this acquisition, in May 2021, we signed an agreement with KindredBio to acquire exclusive 
global rights to KIND-030, a monoclonal antibody that was being developed for the treatment and prevention of canine 
parvovirus, a treatment for which we received conditional approval and launched in 2023. We settled the $29 million 
liability associated with acquiring these rights upon the closing of our acquisition of KindredBio in August 2021. 

The following table summarizes the fair value of assets acquired and liabilities assumed as of the acquisition date: 

Cash and cash equivalents 
Other net working capital 
Property and equipment 
Intangible assets, primarily acquired IPR&D 
Deferred income taxes, net 
Total identifiable net assets 
Goodwill 
Settlement of liability related to previous license agreement 
Total consideration transferred 

$ 

$ 

31  
13  
33  
333  
(30) 
380  
35  
29  
444  

The valuation of assets acquired and liabilities assumed was finalized during the third quarter of 2022. Property and 
equipment  was  mostly  comprised  of  land,  buildings,  equipment  and  construction  in  progress.  The  estimated  fair 
values of acquired IPR&D were determined using the income approach. Some of the significant assumptions inherent 
in the development of these valuations included the estimated net cash flows for each year for each IPR&D asset 
acquired, the appropriate discount rate necessary to measure the risk inherent in each future cash flow stream, the 
life cycle of each asset, the potential regulatory and commercial success risk and competitive trends impacting the 
asset and each cash flow stream, as well as other factors. The goodwill recognized from this acquisition was primarily 
attributable to KindredBio's assembled workforce and anticipated synergies. The majority of goodwill associated with 
this acquisition is not deductible for tax purposes. Revenue and loss from KindredBio included in the consolidated 
statements of operations since the date of acquisition were not material. 

Divestitures 

Microbiome R&D platform carve-out 

In April 2022, we signed an agreement to transfer assets associated with our microbiome R&D platform to a newly 
created, independent biopharmaceutical company, BiomEdit, focused on developing solutions for animal and human 
health. As part of the agreement, we retained a non-voting, minority stake in the company. Assets transferred included 
intellectual property and laboratory equipment. The book values of those assets were not material. In addition, we 
entered into transitional services agreements with the company for certain services. During the year ended December 
31, 2022, we recorded a gain on the disposal of approximately $3 million.  

Shawnee and Speke divestitures 

During 2021, as part of our strategy to optimize our manufacturing footprint, we announced an agreement with TriRx 
Pharmaceuticals (TriRx) to sell our manufacturing sites in Shawnee, Kansas (Shawnee) and Speke, U.K. (Speke), 
including  the  planned  transfer  of  approximately  600  employees.  In  connection  with  these  arrangements,  we  also 
entered into long-term manufacturing and supply agreements, under which TriRx is to manufacture existing Elanco 
products at both sites subsequent to the closing of the transactions. In August 2021 and February 2022, we completed 
the sales of our Shawnee and Speke sites, respectively.  

Based on the original terms of the sales agreements, we anticipated receiving cash consideration from TriRx over a 
three-year period, and during the year ended December 31, 2022, we received cash proceeds of $13 million from 
TriRx related to the sales of Shawnee and Speke. In May 2023, we entered into amendments to the agreements (the 
amended agreement) which effectively restructured the payment schedule related to the remaining amount owed. As 

69 

 
 
 
 
 
 
 
 
 
 
of December 31, 2023, our remaining net receivable balance from TriRx related to the sales of Shawnee and Speke, 
and under the amended agreement, was $69 million, of which $66 million was received in February 2024, with the 
remaining $3 million due in August 2024.  

Further, upon closing the sale of the Speke site in 2022, we recorded a contract asset of $55 million for the favorable 
supply agreement. During the fourth quarter of 2023, we determined that a forecasted decline in cash flows associated 
with the contract asset represented an indicator of impairment, which required us to perform a test for recoverability. 
In  performing  this  assessment,  we  compared  the  expected  undiscounted  cash  flows  associated  with  the  contract 
asset to its carrying value, determining that the asset was impaired as of December 31, 2023. Based on a comparison 
of the estimated fair value of the contract asset to its carrying value, we recorded a $26 million impairment charge. 
The remaining net book value of $14 million related to this contact asset as of December 31, 2023, was included in 
prepaid  expenses  and  other  and  other  noncurrent  assets  on  our  consolidated  balance  sheets.  Our  fair  value 
assessment for the supply agreement was estimated, both upon the initial determination in 2022 and as part of our 
2023 impairment assessment, using a combined income and market approach, which incorporated Level 3 inputs.  

BexCaFe Arrangement  

In  June  2022,  we  signed  a  license  agreement  with  BexCaFe,  LLC  (BexCaFe)  for  the  development  and 
commercialization of products related to Bexacat, an oral treatment intended to reduce glucose levels in diabetic cats. 
BexCaFe  held  the  rights  to  the  compound  through  a  license  agreement  with  similar  terms  and  conditions.  Since 
signing this license agreement, we have incurred, and will continue to incur, all development and regulatory costs 
associated with the products. We determined that BexCaFe represented a variable interest entity and that we are the 
primary beneficiary because the terms of the license give us the power to direct the activities that most significantly 
impact BexCaFe's economic performance. As a result, we consolidated BexCaFe, a development-stage company 
with no employees that did not meet the definition of a business, as of the date we signed the license agreement. 
Upon initial consolidation of BexCaFe, we measured an IPR&D asset at its fair value of $59 million and recorded 
liabilities  totaling  $59 million,  which  included  contingent  consideration  of  $49 million  based  on  the  fair  value  of 
estimated future milestone payments and sales royalties owed under the license agreement. The initial fair value of 
the contingent payments was calculated based on an income approach, with payments adjusted for probability of 
success and discounted to a present value. There is no minimum payout due on the contingent consideration and the 
maximum payout related to sales royalties is unlimited. Since BexCaFe did not meet the definition of a business, no 
goodwill  was  recorded,  and  immediately  after  initial  consolidation,  we  expensed  the  IPR&D  asset  because  we 
concluded it did not have an alternative future use.  

the  year  ended  December 31,  2023,  we  paid  $13 million 

During 
in  connection  with 
development/regulatory milestones achieved upon U.S. Food and Drug Administration (FDA) approval of the original 
new animal drug application for Bexacat in December 2022. We also paid $10 million to BexCaFe under the terms of 
this  agreement  during  the  year  ended  December  31,  2022.  Remaining  contingent  consideration  liabilities  of 
$35 million were included in other current liabilities and other noncurrent liabilities on our consolidated balance sheet 
as of December 31, 2023.  

to  BexCaFe 

Note 5. Asset Impairment, Restructuring and Other Special Charges 

In  recent  years,  we  have  incurred  substantial  costs  associated  with  restructuring  programs  and  cost-reduction 
initiatives designed to achieve a flexible and competitive cost structure. These restructuring activities have primarily 
included  charges  associated  with  facility  rationalization  and  workforce  reductions.  In  connection  with  recent 
acquisitions, including the acquisition of Bayer Animal Health, we have also incurred costs associated with executing 
transactions and integrating acquired operations. In addition, we have incurred costs to stand up our organization as 
an independent company. All operating functions can be impacted by these actions; therefore, non-cash impairment 
charges have also been incurred as a result of revised fair value projections and/or determinations to no longer utilize 
certain assets on an ongoing basis. Determinations of fair value can result from a complex series of judgments and 
rely on estimates and assumptions.  

70 

 
 
 
 
Components of asset impairment, restructuring and other special charges for the years ended December 31 were as 
follows: 

Restructuring charges (credits) (1)  

Acquisition related charges(2) 

Non-cash and other items: 
Asset impairment (3) 

Other special charges (4) 

2023 

2022 

2021 

$ 

—    $ 

(7)   $ 

93     

105     

32     
2     

81     
4     

110  

162  

350  
12  

Total expense 

$ 

127    $ 

183    $ 

634  

(1)  Restructuring  credits  in  2022  related  to  adjustments  resulting  from  the  reversal  of  severance  accruals  associated with  2021  restructuring 
programs, resulting from final negotiations and certain restructured employees filling open positions. Restructuring charges in 2021 primarily 
represented employee termination costs for restructuring programs announced and initiated in January and November 2021. These costs 
were partially offset by the reversal of severance accruals associated with prior restructuring programs during the period.   

(2)  Acquisition related charges primarily included transaction costs directly related to acquiring businesses, such as expenditures for banking, 
legal, accounting, consulting and other similar services, integration charges inclusive of system and process integration and product transfers, 
and independent company stand-up costs related to the implementation of new systems, programs and processes. 

(3)  Asset  impairments  during  2023  included  a  $26 million  write-down  of  a  contract  asset  related  to  a  long-term  manufacturing  and  supply 
agreement initially recorded upon the completion of the sale of our Speke site (see Note 4. Acquisitions, Divestitures and Other Arrangements 
for further discussion on this item) and a write-down of certain indefinite-lived intangible assets, principally due to increases in the relevant 
discount rates. Asset impairments during 2022 included a charge of $59 million related to the write-off of an IPR&D asset with no alternative 
future use licensed from BexCaFe and a $22 million charge related to the finalization of the write-down upon sale of the Speke site. Asset 
impairments in 2021 included write-downs of certain IPR&D and marketed products assets that were subject to product rationalization, as 
well as write-downs of assets ultimately sold related to the Shawnee and Speke sites. Also included in 2021 are charges recorded to write-
down assets in connection with restructuring programs. 

(4)  Other special charges in 2021 primarily represented $10 million of litigation settlements. 

The following table summarizes the activity in our reserves established in connection with restructuring activities: 

Balance at December 31, 2021 

Reserve adjustment 
Cash paid 
Foreign currency translation adjustments 

Balance at December 31, 2022 

Cash paid 

Balance at December 31, 2023 

$ 

$ 

126  
(9) 
(79) 
(2) 
36  
(29) 
7  

These reserves were included in other current liabilities and other noncurrent liabilities on our consolidated balance 
sheets based on the timing of when the obligations were expected to be paid, which can vary due to certain country-
specific negotiations and regulations.  

Note 6. Inventories 

We state all inventories at the lower of cost and net realizable value. We value a majority of our inventories using the 
FIFO  method,  although  at  December 31,  2023  and  2022,  $295 million  and  $288 million,  respectively,  of  our  total 
inventories  were  valued  using  the  last-in,  first-out  (LIFO)  method.  Inventories  at  December  31  consisted  of  the 
following: 

71 

 
 
 
 
 
 
 
 
  
  
 
 
 
  
  
 
  
  
 
 
 
  
  
 
 
 
 
 
 
 
 
Finished products 
Work in process 
Raw materials and supplies 
Total 
Decrease to LIFO cost 
Inventories 

Note 7. Equity 

2023 

2022 

$ 

$ 

857    $ 
814     
128     
1,799     
(64)    
1,735    $ 

783  
683  
130  
1,596  
(58) 
1,538  

Elanco  had  5.0 billion  ordinary  shares  authorized,  with  approximately  492.8  million  issued  and  outstanding  as  of 
December  31,  2023.  Elanco  also  had  1.0 billion  preferred  shares,  no  par  value,  authorized  (with  none  issued  or 
outstanding) as of December 31, 2023.  

Tangible Equity Unit (TEU) Offering 

In January 2020 we issued 11 million in TEUs at the stated amount of $50 per unit. Total proceeds, net of issuance 
costs,  were  $528 million.  The  gross  proceeds  and  deferred  finance  costs  from  the  issuance  of  the  TEUs  were 
allocated 86% to equity (prepaid stock purchase contracts) and 14% to debt (TEU amortizing notes) based on the 
relative  fair  value  of  the  respective  components  of  each  TEU.  The  TEU  prepaid  stock  purchase  contracts  were 
converted into shares of our common stock on February 1, 2023. Holders of our TEUs received 1.5625 shares of our 
common stock based on the maximum settlement rate for the applicable market value being below $32.00. In total, 
we issued approximately 17 million shares to holders in connection with the settlement.  

Note 8. Debt  

Long-term debt as of December 31 consisted of the following: 

2023 

2022 

$ 

Incremental Term Facility due 2025 
Incremental Term Facility due 2028 
Incremental Term Facility due 2029 
Term Loan B due 2027 
Revolving Credit Facility (1) 
Securitization Facility (2) 
4.272% Senior Notes due 2023 (3) 
4.900% Senior Notes due 2028 (4) 
TEU Amortizing Notes due 2023 (5) 
Unamortized debt issuance costs 

175  
494  
249  
3,881  
—  
—  
344  
750  
7  
(64) 
5,836  
Less current portion of long-term debt 
388  
5,448  
Total long-term debt 
(1)  Our Revolving Credit Facility provides up to $750 million in borrowing capacity (with incremental capacity if certain conditions are met), bears 
interest at Term SOFR plus 2.10% and matures in August 2025. In February 2024, we drew an additional $50 million on our Revolving Credit 
Facility to fund working capital and other operational needs.  

175    $ 
489     
247     
3,838     
200     
125    
—     
750     
—     
(50)    
5,774     
38     
5,736    $ 

$ 

(2) 

In August 2023 we entered into a new secured term facility that is secured and collateralized by our U.S. Net Eligible Receivables Balance 
(see below for further information). In January 2024, we drew an additional $50 million on our Securitization Facility to fund working capital 
and other operational needs. 

(3)  We redeemed the 4.272% Senior Notes due 2023 in full in August 2023 (see below for further information). 

(4)  Subsequent to issuance in August 2018, the 4.900% Senior Notes due 2028 have been subject to interest rate increases related to credit 

rating agency downgrades. As of December 31, 2023, these notes bear interest at a rate of 6.650%. 

(5)  The TEU Amortizing Notes due 2023 matured on February 1, 2023 (see Note 7. Equity for further information).  

72 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Future required principal payments on our outstanding indebtedness for each of the next five years and thereafter, as 
of December 31, 2023, were as follows: 

  $ 

2024 
50  
2025 
425  
2026 
175  
2027 
3,718  
2028 
1,221  
2029 and thereafter 
235  
Total obligations and commitments 
5,824  
Unamortized debt issuance costs 
(50) 
5,774  
Total debt 
As of December 31, 2023, approximately 78% of our long-term indebtedness bore interest at a fixed rate, including 
variable-rate converted to fixed-rate through the use of interest rate swaps (see Note 9. Financial Instruments for 
further information). Cash payments for interest during the years ended December 31 were as follows: 

  $ 

Interest paid 

Term Loan B and Revolving Credit Facility 

2023 

2022 

2021 

$ 

379    $ 

266    $ 

221  

In connection with our acquisition of Bayer Animal Health in 2020, we entered into our Term Loan B facility, which 
bears interest at a floating rate of Term SOFR plus 175 basis points and is payable in quarterly installments through 
its maturity on August 1, 2027. Simultaneously, we entered into our Revolving Credit Facility, which provides us with 
a source of liquidity for certain operating activities and for additional flexibility to finance capital investments, business 
development  activities,  repayments  of  debt  and  other  cash  requirements.  Our Term  Loan  B  and  Revolving  Credit 
Facility are secured by a significant portion of our assets.  

There are two financial maintenance covenants which are solely for the benefit of lenders under the Revolving Credit 
Facility. There are no financial maintenance covenants for the benefit of the Term Loan B facility, and the lenders 
under the Term Loan B facility have no enforcement rights with respect to the financial maintenance covenants for 
the Revolving Credit Facility. The first financial maintenance covenant for the Revolving Credit Facility requires us to 
maintain a net total leverage ratio level (which is not subject to step-downs) as of the end of each quarter. The required 
level of this covenant is based on closing date pro forma net leverage and pro forma adjusted earnings before interest, 
taxes, depreciation and amortization (EBITDA) not to exceed 7.71 to 1.00 of our pro forma adjusted EBITDA for the 
preceding four fiscal quarters. The second financial maintenance covenant for the Revolving Credit Facility requires 
us to maintain a ratio of pro forma adjusted EBITDA to cash interest expense of no less than 2.00 to 1.00, tested as 
of the end of each fiscal quarter. We were in compliance with all of our debt covenants as of December 31, 2023. 

2023 Financings 

On August  3,  2023,  we  entered  into  a  new  secured  term  facility  (the  Securitization  Facility)  that  is  secured  and 
collateralized by our U.S. accounts receivable, subject to certain adjustments (defined as the Net Eligible Receivables 
Balance  within  the  applicable  agreement). The  terms  of  the  agreement  result  in  an  amount  of  our  U.S.  accounts 
receivable, equivalent to the outstanding balance of the Securitization Facility at any point in time, being pledged to 
the lender as collateral for the borrowings. Of the maximum borrowing capacity under the Securitization Facility of 
$300 million, $250 million was drawn on August 3, 2023, based on our borrowing capacity on that date. Our borrowing 
capacity under the Securitization Facility is subject to fluctuation monthly based on the level of our borrowing base as 
reported to the lender, which is correlated to our U.S. Net Eligible Receivables Balances. The Securitization Facility 
requires monthly interest payments over its three-year term at a variable rate based on Term SOFR plus 125 basis 
points. The full, outstanding balance of the Securitization Facility is due on July 31, 2026. We utilized the proceeds 
from the Securitization Facility, in addition to a $100 million draw on our Revolving Credit Facility, to redeem in full the 
4.272% Senior Notes due 2023 on August 7, 2023. Subsequent to our initial $250 million draw on the Securitization 
Facility,  $125 million  was  repaid,  resulting  in  a  balance  of  $125 million  outstanding  as  of  December 31,  2023.  In 
January  2024,  we  drew  an  additional  $50 million  on  our  Securitization  Facility  to  fund  working  capital  and  other 

73 

 
 
 
   
   
   
   
   
   
   
 
 
 
operational needs. The Securitization Facility includes various covenants specific to the underlying composition of our 
U.S. accounts receivables portfolio, all of which we were in compliance with as of December 31, 2023. 

2022 Financings 

In April 2022, we entered into an incremental assumption agreement which provides for an incremental term facility 
with  an  aggregate  principal  amount  of  $250 million  maturing  on April  19,  2029  (the  Incremental Term  Facility  due 
2029). The Incremental Term Facility due 2029 bears interest at Term SOFR, including a credit spread adjustment, 
plus 175 basis points and is payable in quarterly installments of principal and interest with a final balloon payment 
due at maturity. The terms of the Incremental Term Facility due 2029 are generally consistent with the terms of our 
Term Loan B and Revolving Credit Facility.  

In June 2022, we entered into an incremental assumption agreement which provides for an incremental term facility 
with an aggregate principal amount of $175 million maturing on June 30, 2025 (the Incremental Term Facility due 
2025). The Incremental Term Facility due 2025 bears interest at Term SOFR, including a credit spread adjustment, 
plus  175  basis  points  and  is  payable  in  full  at  maturity. The  terms  of  the  Incremental Term  Facility  due  2025  are 
generally consistent with the terms of our Term Loan B and Revolving Credit Facility.  

2021 Financing 

In August 2021, we entered into an incremental assumption agreement which provides for an incremental term facility 
with an aggregate principal amount of $500 million maturing on August 12, 2028 (the Incremental Term Facility due 
2028). The incremental term facility bears interest at Term SOFR plus 175 basis points and is payable in quarterly 
installments of principal and interest with a final balloon payment due at maturity. The terms of the Incremental Term 
Facility due 2028 are generally consistent with the terms of our Term Loan B and Revolving Credit Facility.  

Senior Notes 

In August 2018, we issued $750 million of 4.272% Senior Notes due August 28, 2023 and $750 million of 4.900% 
Senior Notes due August 28, 2028. The interest rate payable on each series of Senior Notes has been subject to 
adjustment in the event of credit rating agency downgrades, which last occurred in April 2023. The indenture that 
governs  the  Senior  Notes  contains  covenants  that  limit  our  ability  to  incur  liens  or  engage  in  sale-leaseback 
transactions. The indenture also contains restrictions on our ability to consolidate, merge or sell substantially all of 
our assets, in addition to other customary terms. We were in compliance with all such covenants under the indenture 
governing the Senior Notes as of December 31, 2023. 

In April 2022, we completed a tender offer and retired $406 million in aggregate principal amount of our 4.272% Senior 
Notes  due  August  28,  2023,  resulting  in  a  debt  extinguishment  loss  of  approximately  $17 million,  which  was 
recognized in interest expense, net of capitalized interest in the consolidated statements of operations. As discussed 
above, on August 7, 2023, we utilized the proceeds from the Securitization Facility, in addition to a $100 million draw 
on our Revolving Credit Facility, to redeem in full the remaining outstanding 4.272% Senior Notes due 2023. This 
early redemption satisfied all obligations and commitments related to the 4.272% Senior Notes due 2023. 

74 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Note 9. Financial Instruments  

To manage our exposure to market risks, such as changes in foreign currency exchange rates and interest rates, we 
have entered into various derivative transactions. We formally assess, designate and document, as a hedge of an 
underlying  exposure,  each  qualifying  derivative  instrument  that  will  be  accounted  for  as  an  accounting  hedge  at 
inception.  We  also  assess  at  least  quarterly  thereafter  whether  the  financial  instruments  used  in  the  hedging 
transaction  are  effective  at  offsetting  changes  in  either  the  fair  values  or  cash  flows  of  the  underlying  exposures. 
Derivative cash flows are principally classified in the operating activities section of the consolidated statements of 
cash flows, consistent with the underlying hedged item. Further, we do not offset derivative assets and liabilities on 
the consolidated balance sheets. Our outstanding positions are discussed below.  

Derivatives Not Designated as Hedges 

We may enter into foreign exchange forward or option contracts to reduce the effect of fluctuating currency exchange 
rates. Foreign currency derivatives used for hedging are put in place using the same or like currencies and duration 
as the underlying exposures and are recorded at fair value with the gain or loss recognized in other expense, net in 
the consolidated statements of operations. Forward contracts generally have maturities not exceeding 12 months. As 
of December 31, 2023 and 2022, we had outstanding foreign exchange contracts with aggregate notional amounts 
of $891 million and $784 million, respectively.  

The amount of net gains (losses) on derivative instruments not designated as hedging instruments, recorded in other 
expense, net for the years ended December 31, were as follows: 

2023 

2022 

2021 

Foreign exchange forward contracts (1) 
(1)  These amounts were substantially offset in other expense, net by the effect of changing exchange rates on the underlying foreign currency 

$ 

7    $ 

(12)   $ 

(35) 

exposures. 

Derivatives Designated as Hedges – Net investment hedges 

In September 2023 we entered into a series of cross-currency fixed interest rate swaps to help mitigate the impact of 
currency fluctuations on our operations in Switzerland with a combined 1,000 million CHF notional amount with tenors 
in 2026 and 2027. These instruments were determined to be, and were designated as, effective economic hedges of 
net investments in our CHF denominated net assets. The fair values of these instruments were estimated based on 
quoted market values of similar hedges and are classified as Level 2 in the fair value hierarchy (see Note 10. Fair 
Value for further information). Gains or losses related to these instruments due to spot rate fluctuations are recorded 
as cumulative translation adjustments as a component of other comprehensive income (loss). Gains and losses will 
remain in accumulated other comprehensive income (loss) until either the sale or substantial liquidation of the hedged 
subsidiary. The  amount  of  losses  on  net  investment  hedges,  net of  tax,  recorded  in  other comprehensive  income 
(loss), for the year ended December 31, was as follows: 

2023 

(72) 
Cross-currency fixed interest rate swaps 
For  the  year  ended  December 31,  2023,  these  instruments  also  generated  $9 million  of  interest  income,  which  is 
included as a contra interest expense, net of capitalized interest in our consolidated statements of operations. 

$ 

Derivatives Designated as Hedges – Interest rate swaps 

To manage our exposure to variable interest rate risk, we utilize interest rate swap contracts to effectively convert our 
variable-rate debt into fixed-rate debt. We recognize any differences between the variable interest rate payments and 
the fixed interest rate settlements with the swap counterparties as an adjustment to interest expense, net of capitalized 
interest over the life of the swaps. We have designated our interest rate swaps as cash flow hedges and record them 
at fair value on the consolidated balance sheets. Changes in the fair value of the hedges are recognized in other 
comprehensive income (loss) and reclassified into earnings through interest expense, net of capitalized interest at 
the time earnings are affected by the hedged transaction. Fair value is estimated based on quoted market values of 
similar hedges and is classified as Level 2 in the fair value hierarchy.  

75 

 
 
 
 
 
 
 
 
 
 
We  had  outstanding  forward-starting  interest  rate  swaps  with  aggregate  notional  amounts  of  $3,800 million  and 
$3,050 million as of December 31, 2023 and December 31, 2022, respectively. In March 2023, we entered into new 
interest rate swap agreements with a combined notional amount of $1,000 million, which prior to the interest rate 
swap restructuring in September 2023 discussed below, were set to become effective on October 1, 2023, following 
the maturity of certain swaps with the same combined notional amount. Additionally, on May 1, 2023, we entered into 
new interest rate swap agreements with a combined notional amount of $750 million, which became effective on June 
1, 2023, and mature in August 2028. As of December 31, 2023, our outstanding forward-starting interest rate swap 
instruments had maturities ranging between 2026 and 2028.  

The amounts of gains on interest rate swap contracts, net of tax, recorded in accumulated other comprehensive loss, 
for the years ended December 31, were as follows: 

2023 

2022 

2021 

58  
Forward-starting interest rate swaps 
The amounts of gains (losses) reclassified from accumulated other comprehensive loss and recognized into earnings 
through interest expense, net of capitalized interest for the years ended December 31, were as follows: 

209    $ 

—    $ 

$ 

2023 

2022 

2021 

Forward-starting interest rate swaps 
(28) 
Over the next 12 months, we expect to reclassify a gain of $90 million from accumulated other comprehensive loss 
into interest expense, net of capitalized interest related to our interest rate swaps. 

125    $ 

35    $ 

$ 

In April and September 2022, we took advantage of market opportunities to restructure our interest rate swap portfolio 
by unwinding the previously existing swaps and simultaneously entering into new agreements with the same notional 
amounts and covering the same tenors. As a result, we received cash settlements of $207 million during 2022, in 
aggregate. In September 2023, we took further advantage of market opportunities to restructure $3,050 million of our 
interest rate swap portfolio by unwinding existing swaps, including the $1,000 million of aforementioned swaps that 
had not yet taken effect, and simultaneously entering into new agreements with the same notional amounts and tenors 
extending through 2026. As a result, we received cash settlements of $57 million in the aggregate. Cash proceeds 
from  these  interest  rate  swap  settlements  were  included  in  net  cash  from  operating  activities  in  the  consolidated 
statements of cash flows for the years ended December 31, 2023 and 2022, and will continue to be reclassified to 
interest expense, net of capitalized interest over the remaining period of the swaps' original tenors. Additionally, as a 
result  of  the April  2022  interest  rate  swap  settlement,  we  reclassified  $17 million  of  a  stranded  tax  benefit  from 
accumulated other comprehensive loss to income tax expense, based on our policy to reclassify income tax effects 
from accumulated other comprehensive loss using the portfolio approach.  

As of December 31, 2023, when factoring in the $3,800 million of variable rate debt converted to fixed-rate through 
the use of interest rate swaps (excluding the expected future reclassifications to interest expense, net of capitalized 
interest related to past interest rate swap settlements), the weighted-average effective interest rate on our outstanding 
indebtedness was 6.40%. 

76 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Note 10. Fair Value 

Fair value is defined as the exchange price that would be received to sell an asset or paid to transfer a liability (an 
exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between 
market participants on the measurement date. Fair value measurements are based on a framework that utilizes the 
inputs market participants use to determine the fair value of an asset or liability and establishes a fair value hierarchy 
to prioritize those inputs. Level 1 fair value measurements are based on quoted prices in active markets for identical 
assets or liabilities. We determine our Level 2 fair value measurements based on a market approach using quoted 
market values or significant other observable inputs for identical or comparable assets or liabilities. Our Level 3 fair 
value measurements, which include the value of contingent consideration as of December 31, 2023, are based on 
unobservable inputs based on little or no market activity.  

The following table summarizes the fair value information at December 31, 2023 and 2022, for assets and liabilities 
measured at fair value on a recurring basis in the respective balance sheet line items, as well as long-term debt, for 
which fair value is disclosed on a recurring basis:  

Financial statement line item 
December 31, 2023 

Carrying 
Amount   

Fair Value Measurements Using 
Significant 
Other 
Observable 
Inputs  
(Level 2) 

Quoted Prices in 
Active Markets 
for Identical 
Assets (Level 1)   

Significant 
Unobservable 
Inputs  
(Level 3) 

Fair 
Value 

Recurring fair value measurements 

Prepaid expenses and other - derivative 
instruments 
Other current liabilities - derivative instruments 
Other current liabilities - contingent consideration     
Other noncurrent liabilities - derivative 
instruments 

  $ 

Other noncurrent liabilities - contingent 
consideration 

Financial instruments not carried at fair value 

65    $ 
(63)    
(9)    

—    $ 
—     
—     

65    $ 
(63)    
—     

—    $ 
—     
(9)    

65  
(63) 
(9) 

(132)    

—     

(132)    

—     

(132) 

(31)    

—     

—     

(31)    

(31) 

Long-term debt, including current portion 

   (5,824)    

—     

(5,825)    

—     (5,825) 

December 31, 2022 
Recurring fair value measurements 

Prepaid expenses and other - derivative 
instruments 
Other noncurrent assets - derivative instruments 

  $ 

Other noncurrent assets - investments with 
readily determinable fair value 
Other current liabilities - derivative instruments 

Financial instruments not carried at fair value 

90    $ 
10     

7     
(64)    

—    $ 
—     

7     
—     

90    $ 
10     

—     
(64)    

—    $ 
—     

90  
10  

—     
—     

7  
(64) 

Long-term debt, including current portion 

   (5,900)    

—   

(5,711)    

—     (5,711) 

77 

 
 
 
  
    
 
    
 
 
 
  
  
  
  
  
 
 
 
  
  
  
  
  
   
   
   
  
  
  
  
  
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
   
   
   
 
  
  
  
  
 
 
 
 
Cash and cash equivalents include cash on hand and all highly liquid investments with original maturities at the time 
of  purchase  of  three  months  or  less.  The  carrying  values  of  cash  and  cash  equivalents,  accounts  and  other 
receivables, accounts payable, employee compensation and other current liabilities are a reasonable estimate of their 
fair  values  due  to  the  short-term  nature  of  these  assets  and  liabilities.  We  also  had  investments  without  readily 
determinable fair values and equity method investments, which were classified as other noncurrent assets on the 
consolidated balance sheets totaling $26 million and $27 million as of December 31, 2023 and 2022, respectively. 
These investments are not recorded at fair value on a recurring basis, and as such, are not included in the fair value 
table above.  

Of the total value of the contingent consideration liabilities at December 31, 2023, $34 million related to our acquisition 
of  NutriQuest  during  the  first  quarter  of  2023  (see  Note  4. Acquisitions,  Divestitures  and  Other Arrangements  for 
further information). We may pay up to $85 million in cash consideration related to this acquisition, which is contingent 
upon the achievement of specific development, sales and geographic expansion milestones, as outlined in the asset 
purchase agreement. The fair values of these liabilities at December 31, 2023, were estimated using the Monte Carlo 
simulation model, consisting of Level 3 inputs not observable in the market, including estimates relating to revenue 
forecasts, discount rates and volatility. 

Note 11. Goodwill and Intangibles 

Goodwill  

The following table summarizes the changes in the carrying amount of goodwill: 

December 31, 2021 

Additions related to the KindredBio acquisition 
Goodwill associated with Speke divestiture 
Foreign currency translation adjustments 

December 31, 2022 

Additions related to acquisitions 
Impairment charge 
Foreign currency translation adjustments 

December 31, 2023 

$ 

$ 

6,172  
3  
(3) 
(179) 
5,993  
4  
(1,042) 
139  
5,094  

As disclosed previously, there was a sharp increase in long-term treasury rates during the third quarter of 2023, and 
as  a  result,  we  assessed  our  long-lived  assets  for  impairment,  concluding  that  a  triggering  event  existed  as  of 
September  30,  2023,  for  certain  indefinite-lived  assets,  including  goodwill. Accordingly,  we  performed  an  interim 
quantitative goodwill impairment test, which resulted in a $1,042 million pre-tax impairment charge. The fair value of 
our  single  reporting  unit  was  determined  using  the  income  approach,  based  on  a  discounted  cash  flow  model. 
Significant management judgment was required in estimating our reporting unit’s fair value, including, but not limited 
to, estimates and assumptions regarding future cash flows, revenue growth and other profitability measures such as 
gross margin and EBITDA margin; and the determination of an appropriate discount rate. We made these judgments 
based on historical experience, relevant market size, historical pricing and expected industry trends. We reevaluated 
our long-lived assets for impairment at December 31, 2023, and concluded no impairment indicators existed with 
respect to our indefinite-lived assets, including goodwill.  

While we believe our estimates and assumptions underlying our interim quantitative goodwill impairment test were 
reasonable in view of all available information, and while no further impairment charges were recorded during the 
fourth quarter of 2023, future changes in our discount rate, whether driven by increases in long-term treasury rates or 
other factors, or future changes in other significant assumptions or the use of alternative estimates and assumptions, 
could  have  a  significant  impact  on  the  estimated  fair  value  of  our  reporting  unit,  exposing  us  to  further  goodwill 
impairment losses. No impairments to the carrying value of goodwill were recorded during the years ended December 
2022 and 2021.   

78 

 
 
 
 
 
 
 
 
 
 
 
 
Other Intangible Assets 

The gross amount of intangible assets and related accumulated amortization, as of December 31, were as follows:  

2023 

2022 

Carrying 
Amount, 
Gross

Accumulated 
Amortization   

Carrying 
Amount, Net   

Carrying 
Amount, 
Gross

Accumulated 
Amortization   

Carrying 
Amount, Net 

  $ 

6,947    $ 
257     
71     
7,275     

(2,982)   $ 
(111)    
(35)    
(3,128)    

3,965    $ 
146     
36     
4,147     

6,561    $ 
310     
47     
6,918     

(2,275)   $ 
(135)    
(31)    
(2,441)    

4,286  
175  
16  
4,477  

Description 
Finite-lived intangible assets: 

Marketed products 
Software 
Other 
Total finite-lived intangible 
assets 

Indefinite-lived intangible 
assets: 

Acquired IPR&D 
Trade names 

Total intangible assets: 

  $ 

7,622   $ 

339     
8     

—     
—     
(3,128)  $ 

339     
8     
4,494    $ 

359     
6     

7,283   $ 

—     
—     
(2,441)  $ 

359  
6  
4,842  

Intangible  assets  with  finite  lives  are  capitalized  and  amortized  over  their  estimated  economic  lives.  As  of 
December 31, 2023, the remaining weighted-average amortization periods for finite-lived intangible assets were as 
follows: 

Marketed products 
Software 
Other 

  Weighted-Average Life (Years) 
8 
6 
6 

The estimated amortization expense for each of the next five years associated with our finite-lived intangible assets, 
as of December 31, 2023, is as follows: 

2024 

2025 

2026 

2027 

2028 

491  
Estimated amortization expense 
For the years ended December 31, 2023, 2022 and 2021, amortization expense related to software was $54 million, 
$65 million and $52 million, respectively. 

537    $ 

494    $ 

552    $ 

529    $ 

  $ 

As discussed in Note 2. Summary of Significant Accounting Policies, acquired IPR&D is not amortized, but rather is 
reviewed for impairment at least annually, or more frequently in the event of a triggering event. Acquired IPR&D assets 
are treated as indefinite-lived assets until completion or abandonment of the projects, at which time they are tested 
for impairment and, if not impaired, are transferred to marketed products and amortized over their estimated economic 
life. Amortization expense that will be incurred related to assets currently classified as acquired IPR&D upon their 
future transfer to marketed products, is not included in the future amortization expense table presented above, as we 
are not able to predict with certainty the period in which such related amortization will begin. 

Impairment  charges  related  to  acquired  IPR&D  included  within  asset  impairment,  restructuring  and  other  special 
charges within our consolidated statements of operations for the years ended December 31, were as follows: 

2023 

2022 

2021 

Acquired IPR&D impairment 
55  
In  addition,  we  incurred  an  $11 million  impairment  charge  related  to  marketed  products  during  the  year  ended 
December 31, 2021. This impairment related to a write-off of marketed products due to product rationalization. See 
Note 5. Asset Impairment, Restructuring and Other Special Charges, for further discussion of impairment charges 
related to acquired IPR&D during the years ended December 31, 2023, 2022 and 2021.  

59    $ 

6    $ 

  $ 

79 

 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
   
   
   
  
  
  
  
  
  
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Note 12. Property and Equipment  

At December 31, property and equipment consisted of the following: 

Land 
Buildings 
Equipment 
Construction in progress 

Less accumulated depreciation 
Property and equipment, net 

2023 

2022 

  $ 

  $ 

40    $ 
630     
985     
186     
1,841     
(815)    
1,026    $ 

40  
578  
941  
163  
1,722  
(723) 
999  

Property and equipment, less accumulated depreciation, by geographic area as of December 31, was as follows: 

United States 
Germany 
France 
Other foreign countries 
Property and equipment, net 

2023 

2022 

  $ 

  $ 

555    $ 
245     
59     
167     
1,026    $ 

554  
224  
52  
169  
999  

Depreciation expense related to property and equipment for the years ended December 31, was as follows: 

Depreciation expense 

Note 13. Leases 

2023 

2022 

2021 

  $ 

92    $ 

89    $ 

108  

We have operating leases for corporate offices, research and development facilities, vehicles and equipment with 
lease terms generally ranging from one to 15 years, some of which have options to extend or terminate the leases. 
We determine if an arrangement is a lease at inception, and if so, whether it represents an operating or finance lease. 
Right-of-use (ROU) assets relating to our operating leases are included in noncurrent assets, while lease liabilities 
relating  to  operating  leases  are  included  in  other  current  liabilities  and  other  noncurrent  liabilities  within  the 
consolidated balance sheets. As of December 31, 2023 and 2022, finance leases were not material. 

ROU assets represent our right to use an underlying asset for the lease term, while lease liabilities represent our 
obligation to make lease payments arising from the lease. ROU assets and lease liabilities are recognized at the lease 
commencement date based on the present value of lease payments over the lease term. As most of our leases do 
not  provide  an  implicit  rate,  we  use  our  incremental  borrowing  rate  based  on  the  information  available  at  lease 
commencement  date  in  determining  the  present  value  of  lease  payments.  We  use  the  implicit  rate  if  it  is  readily 
determinable. Our lease terms may include options to extend or terminate the lease, and when it is reasonably certain 
we will exercise that option, these extensions are included in the lease term used to calculate the ROU assets and 
operating lease liabilities. We do not include leases with a lease term of 12 months or less within the determination of 
our ROU assets or lease liabilities. 

Operating lease expense is recognized on a straight-line basis over the lease term. Variable lease payments, which 
represent lease payments that vary due to changes in  facts or circumstances occurring after the commencement 
date, are expensed in the period in which the obligation for these payments is incurred.  

The impact of operating leases to the consolidated financial statements for the years ended December 31, was as 
follows:  

80 

 
 
 
 
 
 
   
   
   
 
   
   
 
 
 
   
   
   
 
 
 
 
 
43 

1 

4 

48 

40 

36 

2023 

2022 

2021 

Lease cost 

Operating lease cost 

Short-term lease cost 

Variable lease cost 
Total lease cost 

Other information 

  $ 

42 

   $ 

45 

  $ 

1 

4 

1 

5 

  $ 

47 

   $ 

51 

   $ 

Operating cash outflows from operating leases 

  $ 
ROU assets obtained in exchange for new operating lease liabilities     
Weighted-average remaining lease term - operating leases 

7 years  
 4.8 %  
Weighted-average discount rate - operating leases 
Supplemental balance sheet information related to our operating leases is as follows: 

   $ 

35 

28 

  $ 

33 

32 

7 years  

7 years 

 4.0 %  

 3.8 % 

Asset/Liability 
141  
Right-of-use assets 
31  
Current operating lease liabilities 
111   
Non-current operating lease liabilities    Other noncurrent liabilities 
As of December 31, 2023, the annual minimum lease payments for our operating lease liabilities for the next five 
years and thereafter were as follows: 

  Balance Sheet Classification 
  Other noncurrent assets 
  Other current liabilities 

140    $ 
32     
110     

  $ 

December 31, 
2023 

December 31, 
2022 

2024 
2025 
2026 
2027 
2028 
2029 and thereafter 
Total lease payments 
Less imputed interest 
Total operating lease liabilities 

$ 

$ 

39  
30  
25  
16  
10  
44  
164  
(22) 
142  

Lease contracts that have been executed but have not yet commenced are excluded from the tables above. As of 
December 31, 2023, we have a lease commitment that has not yet commenced for our new corporate headquarters 
in Indianapolis, Indiana. Total minimum lease payments are estimated to be approximately $378 million over a term 
of 25 years, excluding extensions. Final lease payments may vary depending on the actual cost of certain construction 
activities. Lease commencement is expected in 2025. 

Note 14. Stock-Based Compensation 

The Amended and Restated 2018 Elanco Stock Plan (Plan) provides long-term incentives to attract, motivate and 
retain employees and non-employee directors. The types of stock-based awards available include, but are not limited 
to,  restricted  stock  units  (RSUs),  performance-based  awards  (PAs)  and  stock  options.  Our  practices  and  policies 
specify that stock-based compensation awards are approved by the Compensation and Human Capital Committee 
of the Board of Directors (the Compensation Committee). In May 2023, our shareholders approved an increase in the 
total number of shares authorized for stock-based compensation by 20 million, raising the total number of shares 
authorized  for  stock-based  compensation  awards  under  the  plan  to  40 million.  As  of  December 31,  2023,  the 
aggregate number of remaining shares available for future grant was 26.6 million. 

81 

 
 
 
 
 
 
 
  
  
  
 
   
    
   
 
   
    
   
 
 
 
  
  
  
  
  
  
 
    
   
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
Stock-Based Compensation Expense 

We measure compensation expense for stock-based awards based on grant date fair value and the estimated number 
of awards that are expected to vest. For purposes of measuring stock-based compensation expense, we consider 
whether an adjustment to the observable market price is necessary to reflect material nonpublic information that is 
known to us at the time the award is granted. Adjustments during the years ended December 31, 2023, 2022 and 
2021, were not material. Forfeitures are estimated based on historical experience at the time of grant and are revised 
in subsequent periods if actual forfeitures differ from those estimates.  

Components of stock-based compensation expense and related tax benefit for the years ended December 31 were 
as follows: 

2023 

2022 

2021 

66  
Total stock-based compensation expense (1) 
(1)  A majority of our stock-based compensation expense relates to RSUs and PAs. The associated tax benefit from stock-based compensation 

46    $ 

59    $ 

$ 

expense was offset by a valuation allowance. 

Restricted Stock Units 

RSUs are granted to certain employees and are settled in shares of our common stock. RSUs are accounted for at 
fair value based upon the closing stock price on the date of grant. The corresponding expense is amortized over the 
vesting period, which is typically three years. The number of shares ultimately issued for the RSU program remains 
constant with the exception of forfeitures. 

RSUs granted to employees for the years ended December 31 were as follows: 

(Units in millions) 
Granted units 

Weighted-average grant date fair value 

2023 

2022 

2021 

3.2     
11.15    $ 

1.3     
28.17    $ 

1.1  

33.57  

  $ 

Changes in the nonvested portion of RSUs for 2023 are summarized below: 

(Shares in millions) 
Nonvested units at January 1, 2023 
Granted 
Vested 
Forfeited 

Nonvested units at December 31, 2023 

Shares 

Weighted-Average 
Grant Date Fair Value 
29.40  
11.15  
29.40  
23.22  
15.49  

2.0    $ 
3.2     
(1.0)    
(0.3)    
3.9    

The  fair  market  value  of  RSUs  vesting  in  2023,  2022  and  2021  was  $12 million,  $29 million  and  $30 million, 
respectively. As of December 31, 2023, the total remaining unrecognized stock-based compensation expense related 
to nonvested RSUs was $20 million, which is expected to be amortized over a weighted-average remaining requisite 
service period of 16 months. 

Performance-Based Awards 

PAs, which are granted to eligible officers and management, represent the right to receive a share of our common 
stock and are subject to forfeiture until restrictions lapse (including continued employment through the end of the 
vesting period and achievement of certain pre-established metrics). Payouts can vary depending on achievement. 
PAs are accounted for at fair value based upon the closing stock price on the date of grant and fully vest at the end 
of the measurement period. Stock-based compensation expense for PAs is recognized only if it is deemed probable 
that the performance condition will be achieved. 

82 

 
 
 
 
 
 
 
 
 
   
 
 
   
   
   
   
 
PA activity during the year ended December 31, 2023, is summarized below: 

(Shares in millions) 
Nonvested awards at January 1, 2023 
Granted 
Vested 
Forfeited 

Nonvested awards at December 31, 2023 

Shares 

Weighted-Average 
Grant Date Fair Value 
28.94  
11.25  
32.58  
15.64  
11.25  

0.5    $ 
1.6     
(0.7)    
(0.1)    
1.3     

The fair market value of PAs vesting in 2023, 2022 and 2021 was $8 million, $23 million and $22 million, respectively. 
As of December 31, 2023, the total remaining unrecognized stock-based compensation expense related to nonvested 
PAs was $9 million, which is expected to be amortized over a weighted-average remaining requisite service period of 
12 months. 

Stock Options 

Stock  options  represent  the  right  to  purchase  shares  of  our  common  stock  within  a  specified  period  of  time  at  a 
specified price. Stock options were granted in 2023 and 2022 to our officers and management at exercise prices equal 
to the fair market value of our stock at the date of the grant. Options fully vest three years from the grant date and 
have a term of 10 years. No stock options were granted in 2021. 

We account for our employee stock options under the fair value method of accounting using a Black-Scholes-Merton 
valuation  model  to  measure  stock  option  expense  at  the  grant  date,  and  the  corresponding  expense  is  generally 
amortized on a straight-line basis over the vesting term. The weighted-average fair value of stock options granted 
during the years ended December 31, 2023 and 2022 using the Black-Scholes-Merton valuation model was estimated 
to  be  $4.93  and  $10.89,  respectively.  The  Black-Scholes-Merton  model  incorporates  a  number  of  valuation 
assumptions, which are noted in the following table, shown at their weighted-average values for the years ended 
December 31: 

2023 

2022 

Risk-free interest rate (2) 

Expected dividend yield (1) 

 — % 
 1.59 % 
 36.5 % 
6 
Expected term (4) (years) 
(1)  We have never declared nor paid any dividends on our common stock, and we do not anticipate paying dividends on our common stock for 

 — %  
 4.08 %  
 38.2 %  
6  

Expected stock price volatility (3) 

the foreseeable future.  

(2)  Determined using the term-matched, zero-coupon risk-free rate from the Treasury Constant Maturity yield curve, continuously compounded. 

(3)  Determined using a leverage-adjusted historical volatility of peer companies. 

(4)  Determined using SEC safe harbor approach, based on a 3-year cliff vesting schedule and 10-year contractual term. 

Stock option activity during the year ended December 31, 2023, is summarized below: 

(Shares in millions) 
Outstanding at January 1, 2023 
Granted 
Exercised 
Forfeited or expired 
Outstanding at December 31, 2023 
Exercisable at December 31, 2023 

Shares of 
Common Stock 
Attributable to 
Options 

Weighted-
Average 
Exercise Price 
of Options 

Weighted-
Average 
Remaining 
Contractual 
Term (Years) 

Aggregate 
Intrinsic Value 
(in millions) 

0.8    $ 
1.1     
—     
(0.3)    
1.6    $ 
0.3     

30.11    
11.26    
—    
18.40    
17.92   
30.86   

83 

8.4   $ 
6.2    

4  
—  

 
 
 
 
 
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
   
  
   
  
   
  
   
  
   
   
As of December 31, 2023, there was approximately $3 million of unrecognized stock-based compensation expense 
related  to  nonvested  stock  options,  which  is  expected  to  amortize  over  an  expected  remaining  weighted-average 
period of 17 months.  

Note 15. Income Taxes  

Our income tax provision for the years ended December 31, 2023, 2022 and 2021, includes income tax costs and 
benefits such as valuation allowances, uncertain tax positions, audit settlements and other items. We were included 
in Lilly's U.S. tax examinations by the Internal Revenue Service (IRS) through the full separation date of March 11, 
2019. Pursuant to the tax matters agreement we executed with Lilly in connection with the IPO, the potential liabilities 
or potential refunds attributable to pre-IPO periods in which Elanco was included in a Lilly consolidated or combined 
tax return remain with Lilly. The U.S. examination by the IRS of tax years 2016 to 2018 began in 2019 and is ongoing. 
Final resolution of certain matters is dependent upon several factors, including the potential for formal administrative 
proceedings.  

Deferred taxes are recognized for the future tax effects of temporary differences between financial and income tax 
reporting based on enacted tax laws and rates. The tax benefit from an uncertain tax position is recognized only if it 
is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the 
technical  merits  of  the  position.  The  tax  benefits  recognized  in  the  financial  statements  from  such  a  position  are 
measured  based  on  the  largest  benefit  that  has  a  greater  than  50%  likelihood  of  being  realized  upon  ultimate 
resolution. Deferred taxes are not provided on substantially all of the unremitted earnings of subsidiaries outside of 
the U.S., except where required, because it is expected that these earnings will be reinvested indefinitely. For the 
amount deemed indefinitely reinvested, it is not practicable to determine the amount of the related deferred income 
tax liability due to the complexities in the tax laws and assumptions required to be made. Deferred taxes, including 
U.S.  or  foreign  withholding  taxes,  would  be  provided  when  we  no  longer  consider  our  subsidiary  earnings  to  be 
permanently invested, such as in situations where our subsidiaries plan to make future dividend distributions. 

We treat taxes due on future Global Intangible Low-Taxed Income (GILTI) inclusions in U.S. taxable income as a 
current  period  expense  when  incurred.  Certain  countries  in  which  we  have  operations  have  adopted  legislation 
influenced by the Organization for Economic Co-operation and Development (OECD) Pillar Two rules, including a 
minimum tax rate of 15%. It is uncertain whether the U.S. will enact legislation to adopt the Pillar Two framework. We 
are continuing to evaluate additional guidance released by the OECD, along with the pending legislative adoption by 
additional individual countries. 

The composition of loss before income tax expense (benefit) for the years ended December 31, was as follows: 
2021 

2022 

2023 

Federal 
Foreign 

Loss before income taxes 

$ 

$ 

(669)   $ 
(526)    
(1,195)   $ 

(350)   $ 
278     
(72)   $ 

(341) 
(230) 
(571) 

84 

 
 
 
 
 
 
 
 
The composition of income tax expense (benefit) for the years ended December 31, was as follows: 

2023 

2022 

2021 

Current: 
Federal 
Foreign 
State 

Total current tax expense 

Deferred: 
Federal 
Foreign 
State 

Total deferred tax benefit 
Income tax expense (benefit) 

$ 

$ 

(8)   $ 
122     
2     
116     

(3)    
(66)    
(11)    
(80)    
36    $ 

11    $ 
51     
1     
63     

(20)    
(36)    
(1)    
(57)    
6    $ 

—  
59  
1  
60  

(11) 
(136) 
(1) 
(148) 
(88) 

Significant components of our deferred tax assets and liabilities as of December 31 were as follows: 

2023 

2022 

Deferred tax assets: 

Compensation and benefits 
Accruals and reserves 
Tax credit carryovers 
Tax loss carryovers 
Business interest deduction limitation 
Inventories 
Restructuring and other reserves 
R&D capitalized assets 
Operating lease liabilities 
Deferred loss on derivatives designated as hedges 

Other assets 

Total gross deferred tax assets 

Valuation allowances 

Total deferred tax assets 

Deferred tax liabilities: 
Right-of-use assets 
Intangibles 
Property and equipment 
Deferred gain on derivatives designated as hedges 
Other liabilities 

Total deferred tax liabilities 

Deferred tax liabilities - net 

$ 

$ 

37    $ 
55     
57     
314     
196     
24     
7     
68     
52     
5     
—     
815     
(363)    
452     

(50)    
(837)    
(74)    
—     
(5)    
(966)    
(514)   $ 

32  
54  
53  
329  
120  
30  
13  
42  
34  

—  
13  
720  
(228) 
492  

(34) 
(920) 
(70) 
(42) 
(6) 
(1,072) 
(580) 

The  deferred  tax  assets  and  related  valuation  allowance  amounts  for  net  operating  losses  and  tax  credits  shown 
above have been adjusted for differences between financial reporting and tax return filings. 

85 

 
 
 
 
 
 
 
  
  
 
 
 
 
  
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
At  December 31,  2023,  we  had  tax  credit  carryovers  of  $57  million  available  to  reduce  future  income  taxes. This 
amount was comprised of foreign, U.S. federal and state credits. The foreign credits totaled $8 million and if unused, 
will begin to expire in 2026. The U.S. federal credits totaled $33 million and if unused, will begin to expire in 2029. 
The state credits totaled $16 million and if unused, will begin to expire in 2027. The U.S. federal credits were subject 
to a partial valuation allowance and the state credits were subject to a full valuation allowance. 

At December 31, 2023, we had net operating loss carryovers for foreign, U.S. federal and state income tax purposes 
of $314 million. Of this total, $120 million will expire between 2024 and 2036, and $195 million of the carryovers had 
an indefinite carryforward period. Net operating losses and other carryovers for foreign, U.S. federal and state income 
tax purposes were subject to full and partial valuation allowances.  

Movements in the valuation allowance for the years ended December 31, are summarized as follows: 

January 1 
Increase 
Release 
December 31 

2023 

2022 

$ 

$ 

(228)   $ 
(141)    
6     
(363)   $ 

(182) 
(49) 
3  
(228) 

The increase in the valuation allowance during 2023 was primarily attributable to the likelihood of not realizing the 
benefit of U.S. federal and state deferred tax assets because of U.S. pre-tax losses. The total net increase in the 
valuation  allowance  recorded  in  income  tax  expense  (benefit)  in  the  consolidated  statements  of  operations  was 
$93 million, $80 million and $76 million in 2023, 2022 and 2021, respectively, with the remaining change in balance 
primarily recorded through accumulated other comprehensive loss.  

Cash payments of income taxes during the years ended December 31, were as follows: 

2023 

2022 

2021 

151  
Cash payments of income taxes 
Income taxes receivable of $149 million and $180 million, respectively, were included in prepaid expenses and other 
on our consolidated balance sheets as of December 31 2023 and 2022. 

93    $ 

95    $ 

$ 

The following is a reconciliation of the income tax expense (benefit) applying the U.S. federal statutory rate to income 
before income taxes to reported income tax expense: 

Income tax benefit at the U.S. federal statutory tax rate 
Add (deduct): 

Taxation of international operations 
State taxes 
Income tax credits 
Non-deductible employee compensation 
Goodwill and other asset impairments 

Other permanent adjustments 
Change in uncertain tax positions 
Change in valuation allowance 

Income tax expense (benefit) 

2023 

2022 

2021 

$ 

(251)   $ 

(15)   $ 

(120) 

3     
(12)    
(10)    
15     
164     
19     
15     
93     
36    $ 

(43)    
(11)    
(13)    
7     
—     
(2)    
3     
80     
6    $ 

(16) 
(8) 
(14) 
4  

—  
(8) 
(2) 
76  
(88) 

$ 

Goodwill impairment (see Note 11. Goodwill and Intangibles for further information) was not deductible for income tax 
purposes in most of the impacted jurisdictions. Taxation of international operations for the year ended December 31, 
2022, included a $16 million benefit related to an income tax refund claim in Brazil resulting from a Brazil Supreme 
Court decision that determined certain Brazil state value-added tax (VAT) incentives were not subject to federal tax.  

A reconciliation of the beginning and ending amount of gross unrecognized tax benefits for the years ended December 
31, was as follows: 

86 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
Beginning balance at January 1 

Additions based on tax positions related to the current year 

Changes for tax positions of prior years 

Additions related to acquisitions 

Ending balance at December 31 

2023 

2022 

2021 

$ 

$ 

16    $ 

2     

13     

—     
31    $ 

6    $ 

3     

—     

7     
16    $ 

3  

—  

(1) 

4  
6  

The total amount of unrecognized tax benefits that, if recognized, would affect tax expense was $31 million and $16 
million at December 31, 2023 and 2022, respectively. We recognize both accrued interest and penalties related to 
unrecognized tax benefits in income tax expense (benefit). Interest and penalties related to income tax matters were 
not material for the years ended December 31, 2023, 2022 and 2021. 

Note 16. Commitments and Contingencies  

Legal Matters 

We are party to various legal actions that arise in the normal course of business. The most significant matters are 
described below. Under GAAP, loss contingency provisions are recorded when we deem it probable that we will incur 
a loss and we are able to formulate a reasonable estimate of that loss.  

Seresto Class Action Lawsuits and EPA Safety Review 

Claims seeking actual damages, injunctive relief and/or restitution for allegedly deceptive marketing have been made 
against Elanco Animal Health Inc. and Bayer HealthCare LLC, along with other Elanco and Bayer entities, arising out 
of the use of Seresto™, a non-prescription flea and tick collar for cats and dogs. During 2021, putative class action 
lawsuits were filed in federal courts in the U.S. alleging that the Seresto collars contain pesticides that can cause 
serious injury and death to cats and/or dogs wearing the product. In August 2021, the lawsuits were consolidated by 
the Judicial Panel on Multidistrict Litigation, and the cases were transferred to the Northern District of Illinois. In June 
2023, the parties agreed on the monetary terms of a potential settlement of the consolidated class action lawsuits, 
and as a result, a charge of $15 million was recorded. As of December 31, 2023, the parties had agreed on the non-
monetary terms of a potential settlement, in addition to the monetary terms agreed to in June 2023. In January 2024, 
the court preliminarily approved the settlement. The court set a hearing to consider final approval of the settlement in 
December 2024. If at that time all conditions of the settlement are met, and the settlement is approved, we anticipate 
the settlement amount will be payable in the the first or second quarter of 2025. As such, the $15 million provision 
was included within other noncurrent liabilities on our consolidated balance sheet as of December 31, 2023. 

Also, in January 2023, a lawsuit seeking damages for alleged negligence, breach of statutory regulations, breach of 
statutory duties and deceptive marketing was filed in Israel against Elanco and other parties, arising out of the use of 
Seresto and Foresto™ flea and tick collars for cats and dogs that are marketed and sold in Europe and in Israel. We 
intend to defend our position vigorously, and as of the date of this filing, we are unable to estimate the probability of 
loss or range of loss, if any.  

Seresto is a pesticide registered with the U.S. Environmental Protection Agency (EPA). In April 2021, a non-profit 
organization  submitted  a  petition  to  the  EPA  requesting  that  the  agency  take  action  to  cancel  Seresto’s  pesticide 
registration and suspend the registration pending cancellation. In response to the EPA's request for comments from 
the public on the petition, we submitted a comment to the EPA supporting the safety profile of Seresto and engaged 
in discussions with the EPA. On July 13, 2023, the EPA announced their completion of a comprehensive, multi-year 
review, with support from the FDA, of the Seresto flea and tick collar and confirmed the continued registration of the 
collar, denying the citizen's petition. As part of the EPA’s scientific review process, the agency analyzed incident data 
including third-party assessments and compared data to other EPA registered pet products. Based on comprehensive 
data from the review, the EPA concluded that Seresto continues to meet all the EPA’s standards for registration under 
the  Federal  Insecticide,  Fungicide  and  Rodenticide  Act  (FIFRA),  which  ensures  that  products  do  not  pose 
unreasonable risk of harm. 

87 

 
 
 
 
 
 
 
 
 
 
 
Additional Legal Matters 

For the litigation matters discussed below we either believe loss is not probable or are unable to estimate the possible 
loss or range of loss, if any. The process of resolving these matters is inherently uncertain and may develop over an 
extended period of time; therefore, at this time, the ultimate resolutions cannot be predicted. As of December 31, 2023 
and 2022, we had no material liabilities established related to the litigation matters discussed below. 

On May 20, 2020, a shareholder class action lawsuit captioned Hunter v. Elanco Animal Health Inc., et al. was filed 
in the United States District Court for the Southern District of Indiana (Court) against Elanco and certain executives. 
On  September  3,  2020,  the  Court  appointed  a  lead  plaintiff,  and  on  November  9,  2020,  the  lead  plaintiff  filed  an 
amended complaint adding additional claims against Elanco, certain executives and other individuals. The lawsuit 
alleged, in part, that Elanco and certain of its executives made materially false and/or misleading statements and/or 
failed to disclose certain facts about Elanco’s supply chain, inventory, revenue and projections. The lawsuit sought 
unspecified monetary damages and purports to represent purchasers of Elanco securities between September 30, 
2018 and May 6, 2020, and purchasers of Elanco common stock issued in connection with Elanco's acquisition of 
Aratana.  On January  13,  2021,  we  filed  a  motion  to  dismiss,  and  on August  17,  2022,  the  Court  issued an  order 
granting our motion to dismiss the case without prejudice. On October 14, 2022, the plaintiffs filed a motion for leave 
to amend the complaint. On December 7, 2022, we filed an opposition to the plaintiffs' motion, and on September 27, 
2023, the Court denied the plaintiffs' motion for leave, issuing final judgment in favor of Elanco. On October 25, 2023, 
the plaintiffs filed a notice of appeal to the United States Court of Appeals for the Seventh Circuit. We continue to 
believe the claims made in the case are meritless, and we intend to continue to vigorously defend our position. 

On  October  16,  2020,  a  shareholder  class  action  lawsuit  captioned  Saffron  Capital  Corporation  v.  Elanco Animal 
Health  Inc.,  et  al.  was  filed  in  the  Marion  Superior  Court  of  Indiana  against  Elanco,  certain  executives  and  other 
individuals and entities. On December 23, 2020, the plaintiffs filed an amended complaint adding an additional plaintiff. 
The  lawsuit  alleges,  in  part,  that  Elanco  and  certain  of  its  executives  made  materially  false  and/or  misleading 
statements and/or failed to disclose certain facts about Elanco’s relationships with third party distributors and revenue 
attributable  to  those  distributors  within  the  registration  statement  on  Form  S-3  dated  January  21,  2020  and 
accompanying prospectus filed in connection with Elanco’s public offering which closed on or about January 27, 2020. 
The lawsuit seeks unspecified monetary damages and purports to represent purchasers of Elanco common stock or 
TEUs issued in connection with the public offering. From February 2021 to August 2022, this case was stayed in 
deference to Hunter v. Elanco Animal Health Inc. On October 24, 2022, we filed a motion to dismiss. On December 
23, 2022, the plaintiffs filed their opposition to the motion to dismiss. Prior to the ruling on the motion to dismiss, on 
June 8, 2023, the plaintiffs filed a motion for leave to file a second amended complaint, which is now the operative 
complaint. We filed a motion to dismiss the complaint on August 7, 2023, to which the plaintiff filed their opposition on 
October 13, 2023. We continue to believe the claims made in the case are meritless, and we intend to vigorously 
defend our position. 

In the third quarter of 2019, Tevra Brands, LLC (Tevra) filed a complaint in the U.S. District Court of the Northern 
District of California, alleging that Bayer Animal Health (acquired by us in August 2020) had been involved in unlawful, 
exclusive dealing and tying of its flea and tick products Advantage, Advantix and Seresto and maintained a monopoly 
in  the  market. The  complaint  was  amended  in  March  2020  and  then  dismissed  in  September  2020  with  leave  to 
amend. A second amended complaint was filed in March 2021 and realleges claims of unlawful exclusive dealing 
related to Advantage and Advantix and monopoly maintenance. A motion to dismiss the second amended complaint 
was denied in January 2022. Tevra’s demands include both actual and treble damages. The trial is scheduled for July 
2024. We intend to defend our position vigorously. 

Regulatory Matters 

On July 1, 2021, we received a subpoena from the SEC relating to our channel inventory and sales practices prior to 
mid-2020. We have cooperated in providing documents and information to the SEC and will continue to do so. We 
have engaged in discussions with the SEC about a possible resolution or settlement of potential disclosure claims. 
While we have not reached an agreement on a resolution or settlement of the potential disclosure claims, based on 
the ongoing discussions with the SEC, we believe a loss contingency is both probable and estimable. Accordingly, 
we have accrued a liability of $12.5 million as of December 31, 2023, which was reflected within other expense, net, 
in the consolidated statements of operations and within other current liabilities in the consolidated balance sheets. It 

88 

 
 
 
remains  uncertain  whether  an  agreement  will  be  reached  and  the  terms  of  any  such  agreement.  Management 
continues to believe its actions were appropriate. 

Other Commitments 

As  of  December 31,  2023,  we  had  a  lease  commitment  that  has  not  yet  commenced  for  our  new  corporate 
headquarters in Indianapolis, Indiana. See Note 13. Leases for further information regarding this lease commitment. 

The land for our new corporate headquarters is located in a Tax Increment Finance District, and the project is, in part, 
funded  through  Tax  Incremental  Financing  (TIF)  through  an  incentive  agreement  between  us  and  the  City  of 
Indianapolis.  The  agreement  provides  for  an  estimated  total  incentive  of  $64 million  to  be  funded  by  the  City  of 
Indianapolis in connection with the future tax increment revenue generated from the developed property. In December 
2021,  as  part  of  a  funding  and  development  agreement  entered  into  between  us  and  the  developer,  we  made  a 
commitment to use the expected TIF proceeds towards the cost of developing and constructing the headquarters. In 
exchange,  the  developer  reimbursed  us  up  to  the  $64 million  commitment  in  2021.  During  2022,  we  refunded 
approximately $15 million of the TIF proceeds to the developer. As a result, it is our expectation that our future lease 
payments  will  be  reduced.  The  remaining  accrued  incentive  was  included  in  other  noncurrent  liabilities  on  our 
consolidated balance sheets and will be amortized over the lease term beginning on the commencement date and 
offset future rent expense. 

Note 17. Retirement Benefits 

Pension Plans 

We  sponsor  various  defined  benefit  pension  plans,  which  cover  certain  employees  worldwide.  Our  plans  in 
Switzerland and Germany represent approximately 92% of our global benefit obligation. We use a measurement date 
of  December 31  to  develop  the  change  in  benefit  obligation,  change  in  plan  assets,  funded  status  and  amounts 
recorded on the consolidated balance sheets at December 31 for our defined benefit pension plans, which were as 
follows: 
Change in benefit obligation: 

2023 

2022 

Benefit obligation at beginning of year 
Service cost 
Interest cost 
Actuarial loss (gain) 
Benefits paid 

Foreign currency exchange rate changes and other adjustments 
Benefit obligation at end of year 

Change in plan assets: 

Fair value of plan assets at beginning of year 
Actual return on plan assets 
Employer contribution 
Benefits paid 

Foreign currency exchange rate changes and other adjustments 
Fair value of plan assets at end of year 

Funded status 
Unrecognized net actuarial gain 
Unrecognized prior service cost 
Net amount recognized 

89 

$ 

$ 

324    $ 
9     
11     
17     
(14)    
19     
366     

175     
8     
11     
(14)    
12     
192     

(174)    
(63)    
(28)    
(265)   $ 

462  
14  
4  
(123) 
(12) 
(21) 
324  

207  
(26) 
12  
(12) 
(6) 
175  

(148) 
(82) 
(30) 
(260) 

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
Amounts recognized in the consolidated balance sheet as of December 31, 
consisted of: 
Other noncurrent assets 
Other current liabilities 
Accrued retirement benefits 
Accumulated other comprehensive loss before income taxes 
Net amount recognized 

$ 

$ 

1    $ 
(1)    
(174)    
(91)    
(265)   $ 

2  
—  
(150) 
(112) 
(260) 

The unrecognized net actuarial gain and unrecognized prior service cost for these pension plans have not yet been 
recognized  in  net  periodic  pension  expense  and  were  included  in  accumulated  other  comprehensive  loss  at 
December 31, 2023. We do not expect any plan assets to be returned to us in 2024. 

The following represents our weighted-average assumptions related to these pension plans as of and for the years 
ended December 31: 

(Percentages) 

Discount rate for benefit obligation 
Discount rate for net benefit costs 
Rate of compensation increase for benefit obligation 
Rate of compensation increase for net benefit costs 
Expected return on plan assets for net benefit costs 

2023 

2022 

2021 

 2.8 %  
 3.4 
 2.9 
 3.0 
 4.4 

 3.4 %  
 1.1 
 3.0 
 2.7 
 3.1 

 1.1 % 
 0.6 
 2.7 
 3.1 
 2.9 

The assumptions above were used both to estimate our pension benefit obligations at year-end, as well as in the 
determination of applicable pension benefit costs for the years presented. These assumptions are reviewed on at 
least an annual basis and are revised based on a yearly evaluation of long-term trends and market conditions that 
may impact the cost of providing retirement benefits. The weighted-average discount rates for our defined benefit 
plans are set by benchmarking against investment grade corporate bonds where available, including, when there is 
sufficient data, a yield curve approach. For countries that lack a sufficient corporate bond market, a government bond 
index is used to establish the discount rate. In evaluating the expected rate of return, we consider many factors, with 
a primary analysis of current and projected market conditions, asset returns and asset allocations and the views of 
leading  financial  advisers  and  economists.  We  may  also  review  our  historical  assumptions  compared  with  actual 
results, as well as the assumptions and trend rates utilized by similar plans, where applicable.  

Future benefit payments as of December 31, 2023, which reflect expected future service, as appropriate, are expected 
to be as follows: 

2024 

2025 

2026 

2027 

2028 

  2029-2033 

Benefit payments 
We also expect to contribute $10 million to our pension plans in 2024. 

14    $ 

15    $ 

$ 

15    $ 

16    $ 

16    $ 

93  

Amounts  relating  to  pension  plans  with  projected  benefit  obligations  in  excess  of  plan  assets  were  as  follows  at 
December 31: 

2023 

2022 

301  
Projected benefit obligation 
150  
Fair value of plan assets 
Amounts relating to defined benefit pension plans with accumulated benefit obligations in excess of plan assets were 
as follows at December 31: 

343    $ 
168     

$ 

289  
Accumulated benefit obligation 
146  
Fair value of plan assets 
The total accumulated benefit obligation for our defined benefit pension plans was $354 million and $314 million at 
December 31, 2023 and 2022, respectively. 

332    $ 
168     

$ 

2023 

2022 

90 

 
 
 
 
  
 
 
 
 
 
 
 
 
  
  
 
 
  
  
 
 
  
  
 
 
  
  
 
 
 
 
 
 
  
 
 
  
 
 
Net pension expense (benefit) related to our defined benefit pension plans for the years ended December 31, included 
the following components: 

Service cost 
Interest cost 
Expected return on plan assets 

Amortization of prior service cost 
Amortization of net actuarial (gain) loss 
Net curtailments and settlements 
Net pension expense (benefit) 

2023 

2022 

2021 

9    $ 
11     
(8)    
(5)    
(3)    
—     
4    $ 

14    $ 
4     
(6)    
(5)    
1     
—     
8    $ 

18  
2  
(6) 
(6) 
2  
(29) 
(19) 

$ 

$ 

The components of net periodic benefit expense, other than service cost and net curtailments and settlements, were 
included in other expense, net in the consolidated statements of operations. Net curtailments and settlements related 
to the remeasurement of our pension benefit obligation as a result of workforce reductions in connection with past 
restructuring  programs.  See  Note  5.  Asset  Impairment,  Restructuring  and  Other  Special  Charges  for  further 
information. 

The following represents the pre-tax amounts recognized for defined benefit plans in other comprehensive income 
(loss) for the years ended December 31, 2023: 

2023 

2022 

2021 

Actuarial (loss) gain arising during period 

$ 

(17)   $ 

Amortization of prior service cost, including settlements, in net 
loss 

Amortization of net actuarial (gain) loss, including curtailments, in 
net loss 
Foreign currency exchange rate changes and other 
Total other comprehensive (loss) income during period 

$ 

(5)    

(3)    
5     
(20)   $ 

92    $ 

(5)    

1     
2     
90    $ 

29  

(36) 

22  
—  
15  

We recognized $3 million and $11 million of income tax expense in other comprehensive income (loss), respectively, 
related to our defined benefit plans during the years ended December 31, 2023 and 2022. Amounts recognized in 
2021 were not material. 

Benefit Plan Investments 

Our benefit plan investment policies are set with specific consideration of return and risk requirements in relationship 
to  the  respective  liabilities.  Our  plan  assets  related  to  our  pension  plans  in  Switzerland  and  Germany  represent 
approximately 87% of our total plan assets for all pension plans. Given the long-term nature of our liabilities, our plans 
have the flexibility to manage an above-average degree of risk in the asset portfolios. At the investment-policy level, 
there are no specifically prohibited investments; however, individual investment manager mandates, restrictions and 
limitations are contractually set to align with our investment objectives, ensure risk control and limit concentrations. 

We manage our portfolio to minimize concentration of risk by allocating funds within asset categories. In addition, 
within  a  category  we  use  different  managers  with  various  management  objectives  to  eliminate  any  significant 
concentration  of  risk.  The  investment  strategy  for  the  legacy  Elanco  plans  is  to  diversify  our  plan  assets  with  a 
designated  percentage  invested  in  fixed-income  securities,  equity  securities,  real  estate  and  other  alternative 
investments.  The  acquired  Bayer Animal  Health  plans  are  managed  separately,  and  underlying  investments  are 
classified in the same categories. 

Each category is diversified and comprised of the following: 

•  Fixed-income securities – Swiss bonds, global aggregates, global aggregate corporates, global government 

bonds, emerging market local currencies and emerging markets hard currencies.  

•  Equity securities – Swiss equities, global equities, low volatility equities (to reduce risk) and emerging market 

equities. 

•  Real estate – Swiss real estate and global real estate funds. 

91 

 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
•  Other alternative investments – cash, cash equivalents and investments in senior secured loans. 

We determine the fair value of the investments based on a market approach using quoted market values, significant 
other observable inputs for identical or comparable assets or liabilities. 

Real estate is mostly comprised of public holdings. Real estate investments in registered investment companies that 
trade on an exchange are classified as Level 1 on the fair value hierarchy. Other real estate investments are marked 
to fair value using models that are supported by observable market-based data (Level 2). 

The fair values of pension plan assets as of December 31, 2023, by asset category were as follows: 

Asset Class 
Public equity securities 
Fixed income: 

Developed markets 
Emerging markets 

Real estate 
Other 
Total 

Fair Value Measurements Using 
Significant 
Observable  
Inputs 
(Level 2) 

Quoted Prices in 
Active Markets for 
Identical Assets  
(Level 1) 

Significant 
Unobservable 
Inputs 
(Level 3) 

Total 

Investments 
Valued at 
NAV(1) 

  $ 

58    $ 

55    $ 

72     
12     
18     
32     
192    $ 

  $ 

71     
12     
11     
28     
177    $ 

—    $ 

—     
—     
7     
4     
11    $ 

—    $ 

—     
—     
—     
—     
—    $ 

3  

1  
—  
—  
—  
4  

(1)  Certain investments measured at fair value using the Net Asset Value (NAV) per share, or its equivalent, as a practical expedient have not 

been classified in the fair value hierarchy. 

No material transfers between Level 1, Level 2, or Level 3 occurred during the year ended December 31, 2023.  

The fair values of pension plan assets as of December 31, 2022, by asset category were as follows: 

Asset Class 
Public equity securities 
Fixed income: 

Developed markets 
Emerging markets 

Real estate 
Other 
Total 

Fair Value Measurements Using 
Significant 
Observable 
 Inputs 
(Level 2) 

Quoted Prices in 
Active Markets for 
Identical Assets  
(Level 1) 

Significant 
Unobservable 
Inputs 
(Level 3) 

Total 

Investments 
Valued at 
NAV(1) 

  $ 

49    $ 

47    $ 

64     
9     
23     
30     
175    $ 

  $ 

63     
9     
17     
25     
161    $ 

—    $ 

—     
—     
6     
5     
11    $ 

—    $ 

—     
—     
—     
—     
—    $ 

2  

1  
—  
—  
—  
3  

(1)  Certain investments measured at fair value using NAV per share, or its equivalent, as a practical expedient have not been classified in the 

fair value hierarchy. 

No material transfers between Level 1, Level 2, or Level 3 occurred during the year ended December 31, 2022.  

Defined Contribution Plans 

Elanco has defined contribution savings plans that include certain employees worldwide. Our contributions to these 
plans  are  based  on  our  employee  contributions  and  the  level  of  our  match.  Expenses  under  the  plans  totaled 
$40 million, $34 million and $39 million for the years ended December 31, 2023, 2022 and 2021, respectively. 

Multiemployer Plans 

Through the acquisition of Bayer Animal Health, we acquired participation in certain multiemployer arrangements with 
Bayer-Pensionskasse VVaG, Leverkusen (Germany) (Bayer-Pensionskasse) and Rheinishche Pensionskasse VVaG, 
Leverkusen (Germany) (Rheinishche Pensionskasse). These plans provide basic pension benefits to the majority of 
our employees in Germany. Up to a certain salary level, the benefit obligations are covered by our contributions and 

92 

 
 
 
  
 
   
  
 
 
 
 
 
  
  
  
  
  
   
   
   
   
 
  
 
  
 
 
 
 
 
  
  
  
  
  
   
   
   
   
the contributions from employees to the plan. The Company-specific plan information for Bayer-Pensionskasse and 
Rheinische-Pensionskasse  is  not  publicly  available,  and  the  plans  are  not  subject  to  a  collective-bargaining 
agreement.  The  plans  provide  fixed,  monthly  retirement  payments  on  the  basis  of  the  credits  earned  by  the 
participating  employees.  To  the  extent  Bayer-Pensionskasse  or  Rheinische-Pensionskasse  are  underfunded,  our 
future contributions to the plan(s) may increase and may be used to fund retirement benefits for employees related 
to other employers, although as of December 31, 2022 and 2021, both plans' total assets exceeded the total actuarial 
present value of accumulated plan benefits. Our plan contributions to these plans are expensed as incurred and were 
not  material  in  any  of  the  years  ended  December 31,  2023,  2022  and  2021,  nor  did  they  exceed  5%  of  the  total 
contributions to the plans.  

Contributing to these types of plans creates risk that differs from providing benefits under our sponsored plans, in that 
if another participating employer ceases to contribute to a multiemployer plan, additional unfunded obligations may 
need to be funded over time by remaining participating employers.  

Note 18. Earnings Per Share  

We compute basic earnings (loss) per share by dividing net income (loss) available to common shareholders by the 
actual  weighted-average  number  of  common  shares  outstanding  for  the  reporting  period.  Elanco  has  variable 
common stock equivalents relating to certain equity awards in stock-based compensation arrangements. We also had 
variable common stock equivalents related to the TEU prepaid stock purchase contracts through their settlement date 
of February 1, 2023 (see Note 7. Equity for further discussion). Diluted earnings per share reflects the potential dilution 
that could occur if holders of the unvested equity awards converted their holdings into common stock and that could 
have occurred if holders of unsettled TEUs had converted their holdings into common stock prior to the February 1, 
2023, settlement date. The weighted-average number of potentially dilutive shares outstanding was calculated using 
the treasury stock method. Potential common shares that would have had the effect of increasing diluted earnings 
per share (or reducing loss per share) were considered to be anti-dilutive and as such, these shares were not included 
in the calculation of diluted loss per share.  

Basic and diluted weighted-average shares outstanding were as follows: 

2023 

2022 

2021 

Determination of shares: 

Diluted weighted-average shares outstanding 

Weighted-average common shares outstanding (1) 
Assumed conversion of dilutive common stock equivalents (2)     

487.2  
—  
487.2  
(1)  The TEU prepaid stock purchase contracts were convertible into a minimum of 14.3 million shares or a maximum of 17.2 million shares. The 
minimum 14.3 million shares were included in the calculation of basic weighted-average shares from January 22, 2020 to February 1, 2023. 
The  17.2 million shares  that  were  ultimately  issued  were  included  in  the  calculation  of  basic  weighted-average  shares  subsequent  to  the 
settlement date of February 1, 2023. 

492.3   
—     
492.3   

488.3    
—     
488.3    

(2)  For  the  years  ended  December  31,  2023,  2022  and  2021,  approximately  2.9 million,  3.3 million,  and  3.2 million,  respectively,  of  potential 

common shares were excluded from the calculation of diluted earnings per share because their effect was anti-dilutive.  

Note 19. Subsequent Events  

Announced sale of aqua business: In February 2024, we entered into an asset purchase agreement (the agreement) 
to sell our aqua business to Intervet International B.V., a Dutch subsidiary of Merck Animal Health for approximately 
$1.3 billion in cash, payable at closing. This divestiture is expected to include inventories, real property and equipment, 
including  our  manufacturing  sites  in  Canada  and  Vietnam,  and  certain  intellectual  property,  technology  and  other 
intangible  assets,  including  marketed  brands,  as  well  as  approximately  280  commercial  and  manufacturing 
employees.  The  agreement  contains  certain  representations,  warranties  and  covenants  that  are  customary  for 
transactions of this nature, including covenants by us relating to the operation of the aqua business prior to the closing 
of the agreement, as well as certain non-compete restrictions. The closing of the agreement is subject to customary 
closing conditions, including the receipt of applicable regulatory and antitrust approvals, and is currently anticipated 
to  occur  around  mid-year  2024.  If  the  agreement  is  terminated  due  to  failure  to  obtain  the  applicable  required 
approvals, subject to certain conditions, Merck Animal Health will be required to pay us a termination fee of $55 million 
in cash.  

93 

 
 
 
 
 
 
 
  
  
  
   
   
 
Our aqua business includes products across both warm-water and cold-water species and generated $175 million in 
revenue  during  the  year  ended  December  31,  2023. The  aqua  business  assets  being  sold  met  the  criteria  to  be 
classified as held for sale in February 2024, when all the required criteria for held for sale classification, as outlined 
within GAAP, were met. We have determined that this future divestiture does not qualify for reporting as a discontinued 
operation,  as  it  does  not  represent  a  strategic  shift  that  has  or  will  have  a  major  effect  on  our  operations  and/or 
financial results. 

Approved restructuring plan: In February 2024 our Board of Directors authorized a restructuring plan (the restructuring 
plan) to improve operational efficiencies and better align our organizational structure with current business needs, top 
strategic priorities and key growth opportunities. Specifically, the restructuring plan is intended to reallocate resources 
by shifting international resources from farm animal to pet health as we plan for the global launches of certain potential 
blockbuster products currently under regulatory review. Further, the restructuring plan is expected to result in changes 
in how we operate in and sell into the Argentina market, among others, which we anticipate will reduce our foreign 
currency exposure.  

The restructuring plan will result in the elimination of approximately 420 personnel across our global organization. 
Expected  pre-tax charges associated with  the  restructuring  plan  total  $50  to  $55 million  in  2024,  including  $40  to 
$45 million of cash-based severance costs, the majority of which will be paid in 2024. 

94 

 
 
 
Report of Independent Registered Public Accounting Firm 

To the Shareholders and the Board of Directors of Elanco Animal Health Incorporated 

Opinion on the Financial Statements 

We  have  audited  the  accompanying  consolidated  balance  sheets  of  Elanco  Animal  Health  Incorporated  (the 
Company) as of December 31, 2023 and 2022, the related consolidated statements of operations, comprehensive 
loss, equity and cash flows for each of the three years in the period ended December 31, 2023, and the related notes 
(collectively  referred  to  as  the  “consolidated  financial  statements”).  In  our  opinion,  the  consolidated  financial 
statements present fairly, in all material respects, the financial position of the Company at December 31, 2023 and 
2022, and the results of its operations and its cash flows for each of the three years in the period ended December 
31, 2023, in conformity with U.S. generally accepted accounting principles. 

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United 
States) (PCAOB), the Company’s internal control over financial reporting as of December 31, 2023, based on criteria 
established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the 
Treadway Commission (2013 framework), and our report dated February 26, 2024, expressed an unqualified opinion 
thereon. 

Basis for Opinion  

These financial statements are the responsibility of the Company's management. Our responsibility is to express an 
opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with 
the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal 
securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.  

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and 
perform  the  audit  to  obtain  reasonable  assurance  about  whether  the  financial  statements  are  free  of  material 
misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material 
misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to 
those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures 
in  the  financial  statements.  Our  audits  also  included  evaluating  the  accounting  principles  used  and  significant 
estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe 
that our audits provide a reasonable basis for our opinion. 

Critical Audit Matters 

The  critical  audit  matters  communicated  below  are  matters  arising  from  the  current  period  audit  of  the  financial 
statements that were communicated or required to be communicated to the audit committee and that: (1) relate to 
accounts  or  disclosures  that  are  material  to  the  financial  statements  and  (2)  involved  our  especially  challenging, 
subjective or complex judgments. The communication of critical audit matters does not alter in any way our opinion 
on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matters 
below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate. 

95 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Description of 
the matter 

How we 
addressed the 
matter in our 
audit 

Sales rebates and discounts 
At  December  31,  2023,  the  Company’s  sales  rebates  and  discounts  liability 
totaled $367 million. As explained in Note 2 and 3 to the consolidated financial 
statements,  the  Company  estimates  a sales  rebates  and  discounts  liability  for 
customers in the distribution chain under the terms of their contracts. The sales 
rebates and discounts are recorded as a deduction to revenue in the same period 
that the Company recognizes a sale to a customer. 

Auditing the sales rebates and discounts liability is complex because of the level 
of subjectivity involved in management’s assumptions used in the measurement 
process and the volume of rebate programs offered. For example, the estimate 
of the sales rebate and discount liability is based on historical experience with 
similar incentive programs, current sales data and estimates of inventory levels 

We tested the Company’s internal controls over the sales rebates and discounts 
liability process. This included testing controls over management’s review of the 
significant  inputs  and  assumptions  in  the  estimation  of  sales  rebates  and 
discounts, including rebate rates by product category, sales in to and out of the 
distribution channel, and channel inventory levels. 

To test the Company’s sales rebates and discounts liability, our audit procedures 
included, among others, evaluating the inputs and assumptions discussed above 
and  testing  the  completeness  and  accuracy  of  the  underlying  data  used  in 
management’s determination of transaction price. For example, we inspected the 
underlying rebate programs for customers and compared the rebate percentages 
used in the Company’s analyses with the program percentages. In addition, we 
confirmed product remaining in the distribution channel at period end with third 
parties. We assessed the historical accuracy of management’s sales rebates and 
discounts estimates by comparing the prior period sales rebates and discounts 
liability to the amount of actual payments made in subsequent periods. We also 
performed  independent  calculations  of  the  rebate  accruals  and  a  sensitivity 
analysis of certain significant assumptions to evaluate the change in the sales 

96 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Description of 
the matter 

How we 
addressed the 
matter in our 
audit 

Valuation of goodwill 
At December 31, 2023, the Company’s goodwill was $5,094 million. As described 
in Note 2 and 11 to the consolidated financial statements, goodwill represents the 
excess of consideration transferred for an acquired business over the assigned fair 
value of the net assets acquired. Goodwill is tested for impairment at least annually 
or more frequently if events or changes in circumstances indicate that it is more 
likely  than  not  that  goodwill  may  be  impaired.  The  Company  performed  a 
quantitative goodwill impairment test at September 30, 2023, which resulted in a 
$1,042 million pre-tax impairment charge. 

Auditing  management’s  goodwill  impairment  test  was  complex  and  highly 
judgmental because the estimate underlying the determination of fair value of the 
reporting  unit  involves  management’s  judgments  on  significant  assumptions.  In 
particular, management estimates fair value using the income approach which is 
sensitive  to  certain  significant  assumptions,  such  as  future  revenues,  gross 
margins,  the  components  of  earnings  before  interest,  taxes,  depreciation  and 
amortization (EBITDA) margin and the discount rate commensurate with the risks 
involved. 

We tested the Company's internal controls over its assessment of the fair value of 
the reporting unit. This included testing controls over management’s review of the 
significant  assumptions  used  in  the  valuation  model  including  future  revenues, 
gross margins, the components of EBITDA margin and the discount rate. 

To  test  the  estimated  fair  value  of  the  Company’s  reporting  unit,  our  audit 
procedures  included,  among  others,  assessing  the  valuation  methodology  and 
testing the significant assumptions discussed herein. For example, we compared 
the  significant  assumptions  in  the  prospective  financial  information  used  by 
management to current industry and economic trends and historical performance. 
We assessed the reasonableness of the future revenues, gross margins and the 
components of EBITDA margin by comparing the forecasts to historical results and 
analyst  expectations.  We  performed  sensitivity  analyses  of  certain  significant 
assumptions to evaluate the change in the fair value resulting from changes in the 
significant assumptions. We also involved our valuation specialists to assist in the 
evaluation  of  the  fair  value  methodology  and  significant  assumptions  in  the  fair 
value estimate. In addition, we tested management’s reconciliation of the fair value 
of the reporting unit to the market capitalization of the Company. 

/s/ Ernst & Young LLP 

We have served as the Company’s auditor since 2017. 

Indianapolis, Indiana 
February 26, 2024 

97 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm 

To the Shareholders and the Board of Directors of Elanco Animal Health Incorporated 

Opinion on Internal Control Over Financial Reporting 
We have audited Elanco Animal Health Incorporated’s internal control over financial reporting as of December 31, 
2023, based on criteria established in Internal Control – Integrated Framework issued by the Committee of Sponsoring 
Organizations  of  the Treadway  Commission  (2013  framework)  (the  COSO  criteria).  In  our opinion,  Elanco Animal 
Health  Incorporated  (the  Company)  maintained,  in  all  material  respects,  effective  internal  control  over  financial 
reporting as of December 31, 2023, based on the COSO criteria.   

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United 
States) (PCAOB), the consolidated balance sheets of the Company as of  December 31, 2023 and 2022, the related 
consolidated statements of operations, comprehensive loss, equity and cash flows for each of the three years in the 
period  ended  December 31,  2023,  and  the  related  notes  and  our  report  dated  February 26,  2024,  expressed  an 
unqualified opinion thereon. 

Basis for Opinion  
The Company’s management is responsible for maintaining effective internal control over financial reporting and for 
its  assessment  of  the  effectiveness  of  internal  control  over  financial  reporting  included  in  the  accompanying 
Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the 
Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered 
with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal 
securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. 

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and 
perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was 
maintained in all material respects. 

Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a 
material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on 
the  assessed  risk,  and  performing  such  other  procedures  as  we  considered  necessary  in  the  circumstances.  We 
believe that our audit provides a reasonable basis for our opinion. 

Definition and Limitations of Internal Control Over Financial Reporting 
A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding 
the reliability of financial reporting and the preparation of financial statements for external purposes in accordance 
with generally accepted accounting principles. A company’s internal control over financial reporting includes those 
policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly 
reflect  the  transactions  and  dispositions  of  the  assets  of  the  company;  (2)  provide  reasonable  assurance  that 
transactions are recorded as necessary to permit preparation of financial statements in accordance with generally 
accepted  accounting  principles,  and  that  receipts  and  expenditures  of  the  company  are  being  made  only  in 
accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance 
regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that 
could have a material effect on the financial statements. 

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. 
Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become 
inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may 
deteriorate. 

98 

 
 
 
 
 
 
 
 
 
 
 
 
/s/ Ernst & Young LLP 

Indianapolis, Indiana 

February 26, 2024 

99 

 
 
 
 
 
 
ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON 
ACCOUNTING AND FINANCIAL DISCLOSURE 

None. 

ITEM 9A. CONTROLS AND PROCEDURES 

Disclosure Controls and Procedures 

Our management, with the participation of our Chief Executive Officer (CEO) and Chief Financial Officer (CFO), has 
evaluated  the  effectiveness  of  our  disclosure  controls  and  procedures  (as  defined  in  Rule  13a-15(e)  under  the 
Securities Exchange Act of 1934, as amended (the Exchange Act)) as of the end of the period covered by this report. 
Based on the evaluation, our CEO and CFO have concluded that, as of the end of such period, our disclosure controls 
and procedures were effective in recording, processing, summarizing and reporting, on a timely basis, information 
required  to  be  disclosed  by  us  in  the  reports  we  file  or  submit  under  the  Exchange Act,  and  that  information  is 
accumulated and communicated to the CEO and CFO, as appropriate, to allow timely discussions regarding required 
disclosure.  

Management's Report on Internal Control over Financial Reporting 

Our management is responsible for establishing and maintaining adequate internal control over financial reporting (as 
defined in Exchange Act Rule 13a-15(f)). Our management, with the participation of our CEO and CFO, has evaluated 
the effectiveness of our internal control over financial reporting based on the Internal Control-Integrated Framework 
issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework).  

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. 
In addition, projections of any evaluation of effectiveness to future periods are subject to risk that controls may become 
inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may 
deteriorate. 

Ernst & Young LLP, an independent registered public accounting firm, has audited the effectiveness of our internal 
controls over financial reporting as of December 31, 2023, as stated in their report, which is included herein. 

Remediation of Material Weakness 

As disclosed in Part II. Item 9A of our 2022 Form 10-K, we identified a material weakness as of December 31, 2022, 
related  to  the  ineffective  review  of  the  annual  income  tax  provision,  including  the  valuation  allowance  related  to 
deferred tax assets. During the year ended December 31, 2023, we developed and implemented a remediation plan 
to address this material weakness. Based on management's assessment of the effectiveness of our internal control 
over financial reporting as of and for the year ending December 31, 2023, our CEO and CFO concluded that, as of 
the end of the period covered by this report, we had effectively remediated this past material weakness and that our 
disclosure controls and procedures were effective as of the end of the period covered by this report.  

Changes in Internal Control 

There were no changes in our internal control over financial reporting (as defined in Exchange Act Rule 13a-15(f)), 
aside from our remediation of the aforementioned material weakness, that have materially affected, or are reasonably 
likely to materially affect, our internal control over financial reporting during the quarter ended December 31, 2023.  

ITEM 9B. OTHER INFORMATION 

During  the  three  months  ended  December 31,  2023,  no  director  or  officer  of  the  Company  adopted,  modified  or 
terminated a "Rule 10b5-1 trading arrangement" or "non-Rule 10b5-1 trading arrangement," as each term is defined 
in Item 408(a) of Regulation S-K. 

100 

 
 
 
 
ITEM 9C. DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT 
PREVENT INSPECTIONS 

Not applicable. 

PART III 

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS, AND CORPORATE 
GOVERNANCE 

Information on Directors, Executive Officers and Corporate Governance can be found in the Proxy Statement under 
"Proposal  No.  1:  Election  of  Directors,"  "Corporate  Governance,"  and  "Executive  Officers."  That  information  is 
incorporated in this report by reference.   

ITEM 11. EXECUTIVE COMPENSATION 

Information on director compensation, executive compensation, and compensation committee matters can be found 
in  the  Proxy  Statement  under  “Non-Employee  Director  Compensation,”  "Corporate  Governance  –  Board  and 
Committee  Information  –  Board  Committees,"  "Compensation  Discussion  and  Analysis,"  and  “Executive 
Compensation Tables.” That information is incorporated in this report by reference.  

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND 
MANAGEMENT AND RELATED STOCKHOLDER MATTERS 

Security Ownership of Certain Beneficial Owners and Management  

Information relating to ownership of the company’s common stock by management and by persons known by the 
company to be the beneficial owners of more than five percent of the outstanding shares of common stock is found 
in  the  Proxy  Statement  under  “Stock  Ownership  Information.”  That  information  is  incorporated  in  this  report  by 
reference.  

Securities Authorized for Issuance Under Equity Compensation Plans  

Information  about  our  compensation  plans  under  which  shares  of  our  common  stock  have  been  authorized  for 
issuance  as  of  December 31,  2023,  can  be  found  in  the  Proxy  Statement  under  “Equity  Compensation  Plan 
Information” and is incorporated in this report by reference. 

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND 
DIRECTOR INDEPENDENCE 

Related Person Transactions  
Information relating to related person transactions and the board’s policies and procedures for approval of related 
person  transactions  can  be  found  in  the  Proxy  Statement  under  “Corporate  Governance  –  Related  Party 
Transactions.” That information is incorporated in this report by reference. 

Director Independence  

Information relating to director independence can be found in the Proxy Statement under “Corporate Governance – 
Director Independence” and is incorporated in this report by reference. 

101 

 
 
 
 
ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES 

Information related to the fees and services of our principal independent accountants, Ernst & Young LLP, Auditor 
Firm ID: 42, can be found in the Proxy Statement under “Proposal No. 2: Ratification of Selection of Independent 
Auditor.” That information is incorporated in this report by reference. 

102 

 
 
 
 
PART IV 

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES 

1. Financial Statements  
The following consolidated financial statements of the company and its subsidiaries are found at Item 8: 

•  Consolidated Statements of Operations—Years Ended December 31, 2023, 2022 and 2021  

•  Consolidated Statements of Comprehensive Loss—Years Ended December 31, 2023, 2022 and 2021 

•  Consolidated Balance Sheets—December 31, 2023 and 2022 

•  Consolidated Statements of Equity—Years Ended December 31, 2023, 2022 and 2021 

•  Consolidated Statements of Cash Flows—Years Ended December 31, 2023, 2022 and 2021 

•  Notes to Consolidated Financial Statements 

2. Financial Statement Schedules 

The consolidated financial statement schedules of the company and its subsidiaries have been omitted because they 
are not required, are inapplicable or are adequately explained in the financial statements.  

Financial statements of interests of 50 percent or less, which are accounted for by the equity method, have been 
omitted because they do not, considered in the aggregate as a single subsidiary, constitute a significant subsidiary. 

3. Exhibits 

The following exhibits are either filed or furnished herewith (as applicable) or, if so indicated, incorporated by 
reference to the documents indicated in parentheses, which have previously been filed or furnished with the 
Securities and Exchange Commission.  

Exhibit 
Number     Description 

2.1 

2.2 

2.3 

2.4 

2.5 

2.6 

2.7 

2.8 

Share and Asset Purchase Agreement, dated as of August 20, 2019, between Bayer Aktiengesellschaft 
and Elanco Animal Health Incorporated (incorporated by reference to Exhibit 2.1 of the Current Report 
on Form 8-K filed with the SEC on August 20, 2019). 

Amendment No. 1 to Share and Asset Purchase Agreement, dated as of October 15, 2019, between 
Bayer Aktiengesellschaft and Elanco Animal Health Incorporated (incorporated by reference to Exhibit 
2.1 of the Current Report on Form 8-K filed with the SEC on October 17, 2019). 

Amendment No. 2 to Share and Asset Purchase Agreement, dated as of January 17, 2020, between 
Bayer Aktiengesellschaft and Elanco Animal Health Incorporated (incorporated by reference to Exhibit 
2.1 of the Current Report on Form 8-K filed with the SEC on January 17, 2020). 

Amendment No. 3 to Share and Asset Purchase Agreement, dated as of June 15, 2020, between Bayer 
Aktiengesellschaft and Elanco Animal Health Incorporated (incorporated by reference to Exhibit 2.1 of 
the Current Report on Form 8-K filed with the SEC on June 18, 2020). 

Amendment No. 4 to Share and Asset Purchase Agreement, dated as of July 30, 2020, between Bayer 
Aktiengesellschaft and Elanco Animal Health Incorporated (incorporated by reference to Exhibit 2.5 of 
the Current Report on Form 8-K filed with the SEC on August 3, 2020). 

Annex 27 to the Share and Asset Purchase Agreement, dated as of August 20, 2019, between Bayer 
Aktiengesellschaft and Elanco Animal Health Incorporated (Incorporated by reference to Exhibit 4.3 of 
the Registration Statement on Form S-3 (File No. 333-235991) filed with the SEC on January 21, 2020). 

Agreement and Plan of Merger, dated as of June 15, 2021, by and among Elanco Animal Health 
Incorporated, Knight Merger Sub, Inc., and Kindred Biosciences, Inc. (incorporated by reference to 
Exhibit 2.1 of the Current Report on Form 8-K filed with the SEC on June 16, 2021). 

First Amendment to Agreement and Plan of Merger, dated as of June 30, 2021, by and among Elanco 
Animal Health Incorporated, Knight Merger Sub, Inc., and Kindred Biosciences, Inc. (incorporated by 
reference to Exhibit 2.1 of the Current Report on Form 8-K filed with the SEC on July 1, 2021). 

103 

 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
Number    Description 

2.9 

3.1 

3.2 

4.1 

4.2 

4.3 

4.4 

4.5 

10.1 

10.2 

10.3 

10.4 

10.5 

Asset Purchase Agreement by and between Elanco Animal Health Incorporated as Seller and Intervet 
International B.V. as Buyer dated as of February 5, 2024 (incorporated by reference to Exhibit 2.1 of the 
Current Report on Form 8-K filed with the SEC on February 5, 2024)** 

Amended and Restated Articles of Incorporation of Elanco Animal Health Incorporated, effective 
May 18, 2022 (incorporated by reference to Exhibit 3.1 of the Quarterly Report on Form 10-Q filed with 
the SEC on August 8, 2022). 

Amended and Restated Bylaws of Elanco Animal Health Incorporated, effective May 18, 2022 
(incorporated by reference to Exhibit 3.1 of the Current Report on Form 8-K filed with the SEC on May 
19, 2022). 

Form of Certificate of Common Stock (incorporated by reference to Exhibit 4.1 of Amendment No. 1 to 
Registration Statement on Form S-1 (Registration No. 333-226536) filed with the SEC on August 28, 
2018). 

Indenture, dated August 28, 2018, between Elanco Animal Health Incorporated and Deutsche Bank 
Trust Company Americas, as trustee (incorporated by reference to Exhibit 4.2 of Amendment No. 1 to 
Registration Statement on Form S-1 (Registration No. 333-226536) filed with the SEC on August 28, 
2018). 

First Supplemental Indenture, dated August 28, 2018, between Elanco Animal Health Incorporated and 
Deutsche Bank Trust Company Americas, as trustee (incorporated by reference to Exhibit 4.3 of 
Amendment No. 1 to Registration Statement on Form S-1 (Registration No. 333-226536) filed with the 
SEC on August 28, 2018). 

Second Supplemental Indenture, dated as of January 27, 2020, between Elanco Animal Health 
Incorporated and Deutsche Bank Trust Company Americas, as trustee, including the form of amortizing 
note (incorporated by reference to Exhibit 4.4 of Current Report on Form 8-K filed with the SEC on 
January 27, 2020). 

Description of Securities (incorporated by reference to Exhibit 4.5 of the Annual Report on Form 10-K 
filed with the SEC on March 1, 2023).  

Credit Agreement, dated as of August 1, 2020, among Elanco Animal Health Incorporated, as borrower, 
Elanco US Inc., as co-borrower, the lenders party thereto from time to time, Goldman Sachs Bank USA, 
as term loan administrative agent, and as collateral agent and security trustee, and JPMorgan Chase 
Bank, N.A., as revolver administrative facility agent (incorporated by reference to Exhibit 10.1 of the 
Current Report on Form 8-K filed with the SEC on August 3, 2020). 

Incremental Assumption Agreement, dated August 12, 2021, by and among Elanco Animal Health 
Incorporated, Elanco US Inc., the subsidiary loan parties party thereto, Farm Credit Mid-America, PCA, 
as incremental term lender, and Goldman Sachs Bank USA, as the term facility agent (incorporated by 
reference to Exhibit 10.1 of the Current Report on Form 8-K filed with the SEC on August 12, 2021). 

Incremental Assumption Agreement, dated April 19, 2022, by and among Elanco Animal  Health 
Incorporated, Elanco US Inc., the subsidiary loan parties party thereto, Farm Credit Mid-America, PCA, 
as incremental term lender, and Goldman Sachs Bank USA, as the term facility agent (incorporated by 
reference to Exhibit 10.1 of the Current Report on Form 8-K filed with the SEC on April 20, 2022). 

Incremental Assumption Agreement, dated June 28, 2022 by and among Elanco Animal Health 
Incorporated, Elanco US Inc., the subsidiary loan parties party thereto, Bank of America, N.A., as 
incremental term lender, each other person party thereto as incremental term lender, and Goldman 
Sachs Bank USA, as the term facility agent. (incorporated by reference to Exhibit 10.1 of the Current 
Report on Form 8-K filed with the SEC on June 29, 2022)  
Receivables Loan Agreement among Elanco SPEAR LLC, Elanco US Inc., The Various Lenders and 
Lender Agents from Time to Time Party Thereto and Coöperatieve Rabobank U.A., New York Branch, 
dated as of August 3, 2023 (incorporated by reference to Exhibit 10.1 of the Current Report on Form 8-
K filed with the SEC on August 7, 2023). 

10.6 

Elanco Animal Health Incorporated Directors’ Deferral Plan as amended (incorporated by reference to 
Exhibit 10.1 of the Quarterly Report on Form 10-Q filed with the SEC on May 14, 2019)* 

104 

 
 
 
 
  
  
  
  
  
 
 
 
 
 
 
 
 
 
Exhibit 
Number    Description 

10.7 

10.8 

10.9 

10.10 

10.11 

10.12 

10.13 

10.14 

10.15 

10.16 

10.17 

10.18 

10.19 

10.20 

10.21 

10.22 

10.23 

Director Letter Agreement between Emu Holdings Company and R. David Hoover, dated as of May 25, 
2018 (incorporated by reference to Exhibit 10.19 of Elanco Animal Health Incorporated's registration 
statement on Form S-1 (File No. 333-226536) filed with the SEC on August 2, 2018)* 

Form of 2018 Change in Control Severance Pay Plan for Select Employees (incorporated by reference 
to Exhibit 10.20 of Amendment No. 1 to Elanco Animal Health Incorporated's registration statement on 
Form S-1 (File No. 333-226536) filed with the SEC on August 28, 2018).* 

Form of Elanco Animal Health Incorporated Nonqualified Stock Option Award Agreement (incorporated 
by reference to Exhibit 10.22 of Amendment No. 1 to Elanco Animal Health Incorporated's registration 
statement on Form S-1 (File No. 333-226536) filed with the SEC on August 28, 2018).* 

Employment Offer Letter with Mr. Todd S. Young, dated October 15, 2018, by and between Elanco US 
Inc. and Todd S. Young (incorporated by reference to Exhibit 10.1 to Elanco Animal Health 
Incorporated's Report on Form 8-K filed with the SEC on October 30, 2018).* 

Form of Restricted Stock Unit Award Agreement (Incorporated by reference to Exhibit 10.2 to Form 8-K 
filed with the SEC on February 19, 2019)* 

Form of Restricted Stock Unit Award Agreement (incorporated by reference to Exhibit 10.22 to the 
Annual Report on Form 10-K filed with the SEC on February 20, 2019)* 

Form of Replacement Restricted Stock Unit Award Agreement for Certain Named Executive Officers 
(incorporated by reference to Exhibit 10.25 to the Annual Report on Form 10-K filed with the SEC on 
February 20, 2019)* 

Form of Elanco Animal Health Incorporated Restricted Stock Unit Award Agreement for non-employee 
directors with respect to annual awards (incorporated by reference to Exhibit 10.2 of the Quarterly 
Report on Form 10-Q with the SEC on May 14, 2019).* 

Form of Elanco Animal Health Incorporated Restricted Stock Unit Award Agreement for non-employee 
directors with respect to one-time founder award (incorporated by reference to Exhibit 10.3 of the 
Quarterly Report on Form 10-Q filed with the SEC on May 14, 2019).* 

Elanco Animal Health Incorporated Replacement Restricted Stock Unit Award Agreement, dated March 
12, 2019, by Elanco Animal Health Incorporated (incorporated by reference to Exhibit 10.4 of the 
Quarterly Report on Form 10-Q filed with the SEC on May 14, 2019).* 

Elanco Animal Health Incorporated Executive Deferral Plan (incorporated by reference to Exhibit 10.1 of 
the Quarterly Report on Form 10-Q filed with the SEC on August 13, 2019) 

Form of Elanco Animal Health Incorporated Restricted Stock Unit Award Agreement for executives with 
respect to 2020 annual awards (incorporated by reference to Exhibit 10.1 of the Quarterly Report on 
Form 10-Q filed with the SEC on May 7, 2020)* 

Form of Elanco Animal Health Incorporated Performance-Based Award Agreement for executives with 
respect to 2020 annual awards (incorporated by reference to Exhibit 10.2 of the Quarterly Report on 
Form 10-Q filed with the SEC on May 7, 2020).* 

Form of Elanco Animal Health Incorporated Sign-On Restricted Stock Unit Award Agreement for 
executives (incorporated by reference to Exhibit 10.4 of the Quarterly Report on Form 10-Q filed with 
the SEC on May 7, 2020).* 

Elanco Executive Severance Pay Plan and Summary (filed incorporated by reference to Exhibit 10.31 of 
the Annual Report on Form 10-K filed with the SEC on March 1, 2021).* 

Form of Elanco Animal Health Incorporated Restricted Stock Unit Award Agreement for executives with 
respect to 2021 annual awards (incorporated by reference to Exhibit 10.1 of the Quarterly Report on 
Form 10-Q filed with the SEC on May 7, 2021).* 

Form of Elanco Animal Health Incorporated Performance-Based Award Agreement for executives with 
respect to 2021 annual awards (incorporated by reference to Exhibit 10.2 of the Quarterly Report on 
Form 10-Q filed with the SEC on May 7, 2021).* 

105 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
Number    Description 
10.24 

Elanco Animal Health Incorporated Amended and Restated Corporate Bonus Plan (incorporated by 
reference to Exhibit 10.23 of the Annual Report on Form 10-K filed with the SEC on March 1, 2023).* 

10.25 

10.26 

10.27 

10.28 

10.29 

Elanco Animal Health Incorporated Amended and Restated 2018 Elanco Stock Plan (incorporated by 
reference to Appendix C to the Definitive Proxy Statement for the 2023 Annual Meeting of Shareholders 
filed with the SEC on April 6, 2023).* 

Form of Elanco Animal Health Incorporated Restricted Stock Unit Award Agreement for executives with 
respect to annual awards (incorporated by reference to Exhibit 10.25 of the Annual Report on Form 10-
K filed with the SEC on March 1, 2023).* 

Form of Elanco Animal Health Incorporated Performance-Based Award Agreement for executives with 
respect to annual awards (incorporated by reference to Exhibit 10.26 of the Annual Report on Form 10-
K filed with the SEC on March 1, 2023).*  

Form of Elanco Animal Health Incorporated Nonqualified Stock Option Award Agreement for executives 
with respect to annual awards (incorporated by reference to Exhibit 10.27 of the Annual Report on Form 
10-K filed with the SEC on March 1, 2023).* 

Elanco Animal Health Incorporated Amended and Restated Employee Stock Purchase Plan 
(incorporated by reference to Appendix B to the Definitive Proxy Statement for the 2023 Annual Meeting 
of Shareholders filed with the SEC on April 6, 2023).* 

18   Ernst & Young LLP Preferability Letter dated February 26, 2024 (filed herewith). 

21.1   Subsidiaries of Elanco Animal Health Incorporated (filed herewith). 
23.1   Consent of Ernst & Young LLP (filed herewith). 
31.1 

Section 302 Certification of the Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities 
Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed 
herewith). 

31.2 

Section 302 Certification of the Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities 
Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed 
herewith). 

32 

Certification of the Chief Executive Officer and the Chief Financial Officer pursuant to 18 U.S.C. Section 
1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith). 
97   Elanco Animal Health Incorporated Required Compensation Recovery Policy (filed herewith).* 
101  
104 

The cover page from the Company's Annual Report on Form 10-K for the year ended December 31, 
2023, formatted in Inline XBRL. 

Interactive Data Files. 

*Management contracts or compensatory plans or arrangements 

**Schedules and exhibits have been omitted pursuant to Item 601(b)(2) of Regulation S-K. The company will furnish 
copies of any such schedules to the U.S. Securities and Exchange Commission upon request.  

ITEM 16. FORM 10-K SUMMARY 

Not applicable. 

106 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly 
caused this Report to be signed on its behalf by the undersigned thereunto duly authorized. 

Signatures  

ELANCO ANIMAL HEALTH INCORPORATED 
(Registrant) 

Date: 

February 26, 2024 

/s/ Jeffrey N. Simmons 
Jeffrey N. Simmons 
President and Chief Executive Officer 

Pursuant  to  the  requirements  of  the  Securities  Exchange Act  of  1934,  this  report  has  been  signed  below  by  the 
following persons on behalf of the Registrant and in the capacities and on the dates indicated.  

/s/ Jeffrey N. Simmons 
Jeffrey N. Simmons 

President and Chief Executive Officer (principal executive officer) and 
Director 

/s/ Todd S. Young 
Todd S. Young 

Executive Vice President, Chief Financial Officer (principal financial 
officer) 

/s/ James M. Meer 
James M. Meer 

Senior Vice President, Chief Accounting Officer (principal accounting 
officer) 

/s/ R. David Hoover 
R. David Hoover 
Chairman of the Board 

/s/ Kapila Kapur Anand 
Kapila Kapur Anand 
Director 

/s/ John P. Bilbrey 
John P. Bilbrey 
Director 

Date:  February 26, 2024 

Date:  February 26, 2024 

Date:  February 26, 2024 

Date:  February 26, 2024 

Date:  February 26, 2024 

Date:  February 26, 2024 

107 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
/s/ William F. Doyle

William F. Doyle 
Director 

/s/ Art A. Garcia 
Art A. Garcia 
Director 

/s/ Michael J. Harrington 
Michael J. Harrington 
Director 

/s/ Paul Herendeen 
Paul Herendeen 
Director 

/s/ Deborah T. Kochevar 
Deborah T. Kochevar 
Director 

/s/ Lawrence E. Kurzius 
Lawrence E. Kurzius 
Director 

/s/ Kirk McDonald 
Kirk McDonald 
Director 

/s/ Denise Scots-Knight Ph.D. 
Denise Scots-Knight Ph.D. 
Director 

Date February 26, 2024

Date:  February 26, 2024 

Date:  February 26, 2024 

Date:  February 26, 2024 

Date:  February 26, 2024 

Date:  February 26, 2024 

Date:  February 26, 2024 

Date:  February 26, 2024 

108 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Securities Information
Stock Listing
Elanco common stock is listed 
on the New York Stock Exchange 
under the ticker symbol ELAN.

Shareholder of Record
Number of shares outstanding at 
the record date: 494,097,056

Annual Meeting of
Shareholders
The Elanco Annual Meeting of 
Shareholders will be held on May 
30, 2024, 12:00pm ET only online 
via webcast at:  www.virtualshare-
holdermeeting.com/ELAN2024.

Corporate Information
Corporate Office 
Elanco Animal Health
2500 Innovation Way
Greenfield, IN  46140 USA
1(877)352-6261

Elanco Contacts
Colleen Dekker
Head, Global Corporate  
Communications 
1(317)989-7011
colleen.dekker@elancoah.com

Katy Grissom
Head, Investor Relations 
1(317)273-9284
kathryn.grissom@elancoah.com

Shiv O’Neill
Executive Vice President, General 
Counsel and Corporate Secretary 
1(317)450-4071
shiv.oneill@elancoah.com

Elanco on the Web
You can find more information 
about Elanco, including financial 
results, press releases, career 
opportunities, news on Elanco 
products and services, and other 
activities, at our website  
www.elanco.com.

Transfer Agent and 
Registrar
Communications concerning 
shareholder address changes, 
stock transfer, changes of 
ownership,lost stock certificates, 
payment of dividends, dividend 
check replacements, duplicate 
mailings or other account services 
should be directed to 
the following:

Shareholder correspondence  
should be mailed to:
Computershare 
C/O: Shareholder Services
P.O. Box 43078
Providence, RI 02940-3078

Overnight correspondence 
should be sent to:
Computershare
C/O: Shareholder Services
150 Royall Street Suite 101
Canton, MA 02021

1(800)736-3001

1(781)575-3100

web.quiries@computershare.com

www.computershare.com/investor

Forward-Looking 
Statements
Please refer to our 2023 Form 
10-K for a description of the 
substantial risks and uncertainties 
related to the forward-looking 
statements included in this Annual 
Report. Our Form 10-K is available 
on our website at investor.elanco.
com/financials/sec-filings and 
on the Securities and Exchange 
Commission’s website at www.
sec.gov. 

Non-GAAP Financial 
information
This Annual Report includes non-
GAAP financial measures such as 
constant current revenue growth, 
adjusted EBITDA, adjusted EPS 
and net debt. We believe these 
non-GAAP financial measures 
are useful to investors because 
they provide greater transparency 
regarding our operating 
performance. The primary material 
limitations associated with the 
use of such non-GAAP measures 
as compared to GAAP results 
include the following: (i) they may 
not be comparable to similarly 
titled measures used by other 
companies, including those in our 
industry, (ii) they exclude financial 
information and events, such as 
the effects of an acquisition or 
amortization of intangible assets, 
that some may consider important 
in evaluating our performance, 
value or prospects for the future, 
(iii) they exclude items or types of 
items that may continue to occur 
from period to period in the future 
and (iv) they may not exclude all 
unusual or non-recurring items, 
which could increase or decrease 
these measures, which investors 
may consider to be unrelated to 
our long-term operations. These 
non-GAAP measures are not, 
and should not, be viewed as 
substitutes for GAAP reported 
measures. We encourage 
investors to review our unaudited 
consolidated financial statements 
in their entirety and caution 
investors to use GAAP measures 
as the primary means of evaluating 
our performance, value and 
prospects for the future, and non-
GAAP measures as supplemental 
measures. Reconciliation of non-
GAAP financial measures and 
reported U.S. generally accepted 
accounting principles (GAAP) 
financial measures are included 
in the tables accompanying our 
earnings release dated February 
26, 2024, and in the related 
presentation posted on our 
website at www.elanco.com. 

The trademarks, logos and service marks appearing in this 
Annual Report, whether or not appearing with a trademark 
symbol, are owned or licensed by Elanco or it’s affiliates.
©2024 Elanco or its affiliates. All Rights reserved.

2023 Annual Report

 
For additional information visit elanco.com