IDEXX Laboratories 10-K 2014-12-31

10-K 1 c716-20141231x10k.htm 10-K

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

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 ☒ No ☐

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 ☐ No ☒

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 ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted 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 and post such files). Yes ☒ No ☐

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ☐

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

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No ☒

Based on the closing sale price on June 30, 2014 of the registrant’s Common Stock, the last business day of the registrant’s most recently completed second fiscal quarter, as reported by the NASDAQ Global Select Market, the aggregate market value of the voting stock held by non-affiliates of the registrant was $6,663,805,564. For these purposes, the registrant considers its directors and executive officers to be its only affiliates.

The number of shares outstanding of the registrant’s Common Stock was 47,125,601 on February 6, 2015.

DOCUMENTS INCORPORATED BY REFERENCE

Part III—Specifically identified portions of the Company’s definitive Proxy Statement to be filed in connection with the Company’s 2015 annual meeting of stockholders (the “2015 Annual Meeting”), to be held on May 6, 2015, are incorporated herein by reference.

IDEXX LABORATORIES, INC.

Annual Report on Form 10-K

Table of Contents

| | | | | | PART II | | Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities 26 Item 6. Selected Financial Data 29 Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations 30 Item 7A. Quantitative and Qualitative Disclosure about Market Risk 62 Item 8. Financial Statements and Supplementary Data 63 Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure 63 Item 9A. Controls and Procedures 64

| | | | | | PART III | | Item 10. Directors, Executive Officers and Corporate Governance 65 Item 11. Executive Compensation 65 Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters 65 Item 13. Certain Relationships and Related Transactions, and Director Independence 66 Item 14. Principal Accountant Fees and Services 66 | | | | | | PART IV | | Item 15. Exhibits, Financial Statement Schedules 66 | | | | | Financial Statements and Supplementary Data – Index to Consolidated Financial Statements | | F-1 | | Exhibit Index | | | | Signatures | | | | | | |

BASIS OF PRESENTATION

IDEXX Laboratories, Inc. is a Delaware corporation. Our principal executive offices are located at One IDEXX Drive, Westbrook, Maine 04092, our telephone number is 207-556-0300, and our Internet address is www.idexx.com. References herein to “we,” “us,” “our,” the “Company,” or “IDEXX” include IDEXX Laboratories, Inc. and our wholly-owned subsidiaries and majority-owned subsidiaries unless the context otherwise requires. References to our website are inactive textual references only and the content of our website should not be deemed incorporated by reference into this Annual Report on Form 10-K for any purpose.

The following terms used in this Annual Report on Form 10-K are our trademarks: 4Dx®, Catalyst Dx®, Catalyst One™, Coag Dx™, Colilert®, Colisure®, Cornerstone®, DVMAX®, Enterolert®, Feline Triple®, Filta-Max®, Filta-Max xpress®, IDEXX I-Vision CR®, IDEXX I-Vision DR®, IDEXX I-Vision Mobile™, IDEXX ImageBank™ , IDEXX-PACS™, IDEXX VetLab®, IDEXX VPM™, LaserCyte®, LaserCyte Dx™, Navigator™, OPTI®, OPTI LION™, PetChek®, PetDetect®, Pet Health Network®, Practice Profile™, ProCyte Dx®, Pseudalert®, Quanti-Tray®, SimPlate®, SmartService™, SNAP®, SNAPduo®, SNAP Pro®, SNAP cPL™ , SNAP fPL™, SNAPshot Dx®, VetAutoread™, VetConnect®, VetLab UA™, VetLINK®, VetLyte®, VetStat®, VetTest® and VetVault®.

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION

This Annual Report on Form 10-K for the year ended December 31, 2014 contains statements which, to the extent they are not statements of historical fact, constitute “forward-looking statements.” Such forward-looking statements about our business and expectations within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), include statements relating to future revenue growth rates, earnings and other measures of financial performance; the effect of economic downturns on our business performance; demand for our products; realizability of assets; future cash flow and uses of cash; future repurchases of common stock; future levels of indebtedness and capital spending; interest expense; warranty expense; share-based compensation expense; and competition. Forward-looking statements can be identified by the use of words such as “expects,” “may,” “anticipates,” “intends,” “would,” “will,” “plans,” “believes,” “estimates,” “should,” and similar words and expressions. These forward-looking statements are intended to provide our current expectations or forecasts of future events, are based on current estimates, projections, beliefs, and assumptions, and are not guarantees of future performance. Actual events or results may differ materially from those described in the forward-looking statements. These forward-looking statements involve a number of risks and uncertainties as more fully described under the heading “Part I, Item 1A. Risk Factors” in this Annual Report on Form 10-K. Any forward-looking statements represent our estimates only as of the day this Annual Report on Form 10-K was first filed with the Securities and Exchange Commission (“SEC”) and should not be relied upon as representing our estimates as of any subsequent date. From time to time, oral or written forward-looking statements may also be included in other materials released to the public and they are subject to the risks and uncertainties described or cross-referenced in this section. While we may elect to update forward-looking statements at some point in the future, we specifically disclaim any obligation to do so, even if our estimates or expectations change.

PART I

We are a Delaware corporation incorporated in 1983. We develop, manufacture and distribute products and provide services primarily for the companion animal veterinary, livestock and poultry, water testing and dairy markets. We also sell a line of portable electrolytes and blood gas analyzers for the human point-of-care medical diagnostics market. Our primary products and services are:

DESCRIPTION OF BUSINESS BY SEGMENT

Prior to January 1, 2013, we operated primarily through three business segments: diagnostic and information technology-based products and services for the veterinary market, which we continue to refer to as the Companion Animal Group (“CAG”); water quality products (“Water”); and diagnostic products for livestock and poultry health, which we referred to as Livestock and Poultry Diagnostics. We also operated two smaller operating segments that comprised products for milk quality and safety (“Dairy”) and products for the human point-of-care medical diagnostics market (“OPTI Medical”). Financial information about our Dairy and OPTI Medical operating segments was combined and presented with our remaining pharmaceutical product line and our out-licensing arrangements in an “Other” category because they did not meet the quantitative or qualitative thresholds for reportable segments.

In 2013, we combined the management of our Livestock and Poultry Diagnostics, and Dairy lines of business to more effectively realize the market synergies between the product lines and to achieve operational efficiencies. We refer to this segment as Livestock, Poultry and Dairy (“LPD”). Our OPTI Medical operating segment remains combined and presented with our remaining pharmaceutical product line and our out-licensing arrangements in an “Other” category because they do not meet the quantitative or qualitative thresholds for reportable segments. The segment income (loss) from operations discussed within this report for the year ended December 31, 2012 has been retrospectively revised to reflect this change in the composition of our reportable segments. See Note 14 to the consolidated financial statements for the year ended December 31, 2014 included in this Annual Report on Form 10-K for financial information about our segments, including our product and service categories and our geographic areas.

The performance of our business is particularly subject to various risks that are associated with doing business internationally. For the year ended December 31, 2014, sales of products and services to customers outside the U.S. accounted for approximately 43% of our overall revenue. These foreign sales accounted for approximately 36%, 52% and 90% of revenue in our CAG, Water and LPD segments, respectively. See “Part 1, Item 1A. Risk Factors.” and Note 14 to the consolidated financial statements for the year ended December 31, 2014 included in this Annual Report on Form 10-K for more information on revenue from customers outside of the U.S.

COMPANION ANIMAL GROUP

CAG provides to veterinarians diagnostic capabilities and information management solutions that enhance the health and well-being of pets. The breadth and complementary nature of our products and services comprise a unique competitive advantage that we refer to as the IDEXX Diagnostic Advantage, providing veterinarians with the tools and services to offer advanced veterinary medical care. The IDEXX Diagnostic Advantage improves staff efficiencies and also enables the veterinarian to communicate the value of this medical care to the pet owner, which ultimately leads to growing practice revenues.

CAG Diagnostics

We provide diagnostic capabilities that meet veterinarians’ diverse needs through a variety of modalities, including in-clinic diagnostic solutions and outside reference laboratory services. Regardless of modality utilized, veterinarians are provided with clinically relevant data which is integrated within our information management technologies. The result is a comprehensive view of patient diagnostic information that is easily accessible by both the veterinarian and pet owner.

Integrated Diagnostic Information Management

VetConnect PLUS is a cloud-based technology that enables veterinarians to access and analyze patients’ data from all of IDEXX’s diagnostic modalities. These integrated diagnostic results provide the veterinarian with a visualization of patient-specific testing results, allowing the veterinarian to easily see and trend diagnostic results, enabling greater medical insight and enhanced decision making. In addition, VetConnect PLUS provides instant mobile or browser-based access to results, which can be printed or emailed to pet owners and other veterinarians. In this way, VetConnect PLUS can aid veterinarians and practice staff in engaging the pet owner in the patient’s care, which can support greater compliance with medical recommendations or preventive care protocols. VetConnect PLUS is currently available in North America, Australia, New Zealand, Israel and in numerous countries throughout Europe.

In-Clinic Diagnostic Solutions

Our in-clinic diagnostic solutions are comprised of our IDEXX VetLab suite of in-clinic chemistry, hematology, immunoassay, urinalysis and coagulation analyzers, associated proprietary consumable products that provide real-time reference lab quality diagnostic results and a broad range of single-use, handheld IDEXX SNAP rapid assay test kits that provide quick, accurate and convenient point-of-care diagnostic test results for a variety of companion animal diseases and health conditions.

The IDEXX VetLab suite includes several instrument systems, as well as associated proprietary consumable products, all of which are described below. Additionally, we offer extended maintenance agreements in connection with the sale of our instruments.

Blood and Urine Chemistry. We sell three chemistry analyzers, the Catalyst Dx Chemistry Analyzer, the Catalyst One Chemistry Analyzer and the VetTest Chemistry Analyzer, that are used by veterinarians to measure levels of certain enzymes and other substances in blood or urine for monitoring health status and assisting in diagnosing physiologic conditions. These three instruments use consumables manufactured for IDEXX by Ortho-Clinical Diagnostics, Inc. (“Ortho”) based on Ortho’s dry slide technology. In addition, the Catalyst Dx and the Catalyst One analyzers also use dry slide electrolyte consumables manufactured by OPTI Medical Systems, Inc. (“OPTI Medical Systems”), one of our wholly-owned subsidiaries, and other slides also manufactured by IDEXX. Blood tests commonly run on these analyzers include glucose, alkaline phosphatase, ALT (alanine aminotransferase), albumin, calcium, creatinine, blood urea nitrogen, total protein and many others. Tests are sold individually and in prepackaged panels. All three analyzers also run a urine test called urine protein:creatinine ratio, which assists in the early detection of renal disease.

The Catalyst Dx and Catalyst One analyzers provide significantly improved throughput, ease of use and test menu relative to the VetTest analyzer (our original chemistry analyzer), including the ability to run electrolytes, phenobarbital and fructosamine. Key ease-of-use features include the ability to run a whole blood sample using an on-board centrifuge, the ability to run pre-packaged, multi-slide clips in addition to single chemistry slides and an automated metering system. These analyzers also enable automated dilutions, which is an ease-of-use feature both for certain blood chemistries and the test for urine protein:creatinine ratio. The Catalyst Dx analyzer allows a veterinarian to run multiple patient samples simultaneously and both the Catalyst Dx and Catalyst One run different sample types including whole blood, plasma, serum and urine. In addition, the Catalyst Dx and Catalyst One analyzers run a test to measure phenobarbital levels in blood, allowing veterinarians to adjust anticonvulsant medication more quickly and efficiently. Our fructosamine test helps veterinarians to manage canine and feline diabetes mellitus, helping to assess insulin treatments and adjust insulin dosages. We launched a total thyroxine (“T4”) test for use with the Catalyst One analyzer in February 2015 and will be introducing a similar test for use with the Catalyst Dx during the first half of 2015. T4 testing is essential to assessing thyroid function and is an accepted standard for baseline testing for both sick pets and preventive care in senior pets.

The Catalyst One analyzer, launched in November 2014, is engineered to deliver the same laboratory-quality results and real-time work flow as the Catalyst Dx analyzer, offering an attractive in-house chemistry option when a single sample drawer is sufficient for a clinic’s work-flow requirements. The Catalyst One analyzer currently offers an expanding menu of 30 tests, including tests for thyroid disease, kidney disease, diabetes and therapeutic drug monitoring. Additionally, the instrument is the industry’s first to combine chemistry, electrolytes and T4 in a single blood sample run.

We also sell two other chemistry analyzers, the VetLyte Electrolyte Analyzer and the VetStat Electrolyte and Blood Gas Analyzer. The VetStat analyzer runs single-use disposable cassettes that are manufactured by OPTI Medical Systems.

Sales of consumables for use in our installed base of chemistry analyzers provide the majority of consumables volumes and recurring diagnostic revenues generated from our installed base of IDEXX VetLab equipment.

Hematology. We sell four hematology analyzers that assess the cellular components of blood, including red blood cells, white blood cells and platelets (also called a complete blood count). These analyzers include the ProCyte Dx Hematology Analyzer, the first and only in-house analyzer to combine laser-flow cytometry, optical fluorescence and laminar-flow impedance in its analysis; the original LaserCyte Hematology Analyzer and next generation LaserCyte Dx Hematology Analyzer, launched in 2013, which both use laser-flow cytometry technology in their analysis; and the IDEXX VetAutoread Hematology Analyzer, our original hematology analyzer. In addition, the ProCyte Dx Hematology Analyzer, the LaserCyte Dx Hematology Analyzer and the LaserCyte Hematology Analyzer each have the ability to analyze the components of certain body fluids. We also sell the Coag Dx Analyzer, which permits the detection and diagnosis of blood clotting disorders.

The ProCyte Dx analyzer is our premier hematology analyzer, which we launched in 2010. The ProCyte Dx analyzer provides significantly improved throughput and accuracy and more complete medical information relative to the LaserCyte, LaserCyte Dx and VetAutoread hematology analyzers. The ProCyte Dx analyzer provides up to 26 different blood parameters, including the ability to detect band neutrophils and nucleated red blood cells, for a more complete picture of a patient’s health. The ProCyte Dx is validated for ten companion animal species (canine, feline, equine, bovine, ferret, rabbit, gerbil, pig, guinea pig and mini pig) with research and development efforts focused on validating results for additional species. In 2012, we began to place ProCyte Dx analyzers containing a more advanced and research-focused user interface with customers in the bioresearch market.

Immunoassay Testing Instruments. During the first quarter of 2014, we launched the SNAP Pro Mobile Device, which automatically activates a SNAP test, properly times the run and captures an image of the result. This device improves medical care by allowing veterinarians to share the test results on the SNAP Pro Mobile screen, or via VetConnect PLUS. In addition, the SNAP Pro Mobile Device improves staff efficiency and ensures that all SNAP test runs are captured and entered into the patient record for customer billing.

With multiple-patient testing functionality, the SNAPshot Dx Analyzer provides quantitative measurements of total T4, cortisol and bile acids to assist in the evaluation of thyroid, adrenal and liver function, respectively. The SNAPshot Dx Analyzer also reads, interprets and records the results of many IDEXX rapid assay SNAP tests, including our canine SNAP 4Dx Plus test, feline SNAP FIV/FeLV Combo test, canine SNAP cPL test, feline SNAP fPL test, SNAP Feline Triple test, canine SNAP Heartworm RT test and SNAP Feline proBNP test.

Urinalysis. The IDEXX VetLab UA Analyzer provides rapid, automated capture of semi-quantitative chemical urinalysis and is validated specifically for veterinary use.

IDEXX VetLab Station. The IDEXX VetLab Station (“IVLS”) connects and integrates the diagnostic information from all the IDEXX VetLab analyzers and thus provides reference laboratory information management system capability. IVLS securely connects to the Internet, and in this way enables IDEXX to perform, through its SmartService Solutions wireless services, remote instrument service and software updates to IVLS and certain connected instruments. IVLS also sends all results created on connected instruments instantly to VetConnect PLUS. We sell IVLS as an integral component of the Catalyst Dx, Catalyst One, LaserCyte Dx and ProCyte Dx analyzers, SNAP Pro Mobile Device and also as a standalone hardware platform. The IVLS includes a touch screen user interface to simplify laboratory work flow, connect with a practice management system and send information to run the individual analyzers. IVLS also generates one integrated patient report incorporating all of the lab work generated by the IDEXX VetLab suite, stores, retrieves and analyzes historical patient diagnostics data, including SNAP test results, and sends and receives information from practice management systems, including the IDEXX Cornerstone system, as well as a wide variety of third-party systems.

The SNAP rapid assays are single-use, handheld test kits that can work without the use of instrumentation, although many kits may also be read and recorded automatically by the SNAPshot Dx Analyzer or activated and captured automatically by the SNAP Pro Mobile Device as discussed above. The principal SNAP rapid assay tests are as follows:

Single-Use Canine Tests:

Single-Use Feline Tests:

Sales of canine vector-borne disease tests, including SNAP 4Dx Plus, SNAP 3Dx and SNAP Heartworm RT, are greater in the first half of our fiscal year due to seasonality of disease testing in the veterinary practice.

Outside Reference Laboratory Diagnostic and Consulting Services

We offer commercial reference laboratory diagnostic and consulting services to veterinarians worldwide, including customers in the U.S., Europe, Canada, Australia, Japan, South Africa and South Korea. We have large reference laboratories in Memphis, Tennessee and Leipzig, Germany that are strategically located near large courier hubs. Customers use our services by submitting samples by courier or overnight delivery to one of our facilities. Most test results have same-day or next-day turnaround times. Our reference laboratories offer a large selection of tests and diagnostic panels to detect a number of disease states and other conditions in animals, including all tests that can be run in-clinic at the veterinary practice with our instruments or rapid assays. This menu of tests also includes a number of specialized and proprietary tests that we have developed that allow practitioners to diagnose increasingly relevant diseases and conditions in dogs and cats, including parasites, heart disease, allergies, pancreatitis, diabetes and infectious diseases. Canine vector-borne disease testing volumes are greater in the first half of our fiscal year due to seasonality of disease testing in the veterinary practice.

In January 2015, we announced an upcoming kidney test SDMA, which utilizes a new renal biomarker to detect the onset of canine and feline kidney disease months or years earlier than traditional methods. We anticipate offering SDMA as part of a standard chemistry panel in North America during the summer of 2015. In the spring of 2015, we plan to introduce Hookworm and Roundworm antigen tests to all fecal panels that already include the Whipworm antigen test. These new intestinal parasite panels detect the presence of intestinal worms left undiagnosed by current methods, finding them earlier in the infection cycle and therefore enabling earlier disease diagnosis and treatment intervention.

Additionally, we provide specialized veterinary consultation, telemedicine and advisory services, including radiology, cardiology, internal medicine and ultrasound consulting. These services enable veterinarians to obtain readings and interpretations of test results transmitted by telephone and over the Internet.

In 2012, we acquired the research and diagnostic laboratory (“RADIL”) business of the College of Veterinary Medicine from the University of Missouri. RADIL provides health monitoring and diagnostic testing services to bioresearch customers in North America, Europe and Asia.

Customer Information Management and Digital Imaging Systems

Customer Information Management. We develop, market and sell practice management systems, including hardware, software and services that run key functions of veterinary clinics, including managing patient electronic health records, scheduling (including for boarding and grooming), client communication, billing and inventory management. Our principal practice management systems are Cornerstone, DVMAX Veterinary Practice Management Software and IDEXX Animana. We also support several other practice management systems installed with our customers, including IDEXX Better Choice, IDEXX VPM, IDEXX VetLINK and BeeFree. Our practice management services include Cornerstone Coaching, Practice Profile, VetVault Backup Solution, Payment Solutions and PetDetect Pet Identification System.

In addition, we offer services designed to strengthen the relationship between the veterinarian and the pet owner. We commercially launched Pet Health Network Pro in March 2013, which is a subscription-based service that permits veterinarians to provide online communication and education to pet owners before, during and after each patient visit, thus strengthening the loyalty between a practice and its clients. Further, veterinarians can share VetConnect PLUS testing results directly with pet owners via Pet Health Network Pro. We also offer Pet Health Network 3D, an educational subscription-based service that replaces cumbersome plastic anatomy models with engaging, three-dimension anatomical animations on a desktop or mobile device. Using this service in the exam room improves client communication and facilitates adherence to veterinarian recommendations. In September 2014, we acquired Petly Plans, a cloud-based software solution for veterinary practices to customize, manage and monitor a range of monthly payment preventive care plans for their pet owner clients. Petly Plans complements the Pet Health Network suite of client marketing services by making it easier for practices to increase access to the best care and offer plans that spread the cost of that care – including examinations, vaccines and diagnostics – over the course of a year rather than payment in full upon each visit. Certain of our services are compatible with non-IDEXX practice management systems.

Digital Imaging Systems. Our digital imaging systems capture radiographic images in digital form, replacing traditional x-ray film and the film development process, which generally requires the use of hazardous chemicals and darkrooms. We market and sell three digital imaging systems, our latest generation IDEXX EliteVision Digital Imaging System, the IDEXX I-Vision CR and the IDEXX I-Vision DR system. The newly launched IDEXX EliteVision Digital Imaging System is a wireless system which uses advanced plate technology to capture clear, high-quality images in a short capture time. The IDEXX EliteVision Digital Imaging system is promoted for use as a portable unit in ambulatory veterinary practices, such as equine practices.

Our digital imaging systems employ picture archiving and communication system (“PACS”) software, IDEXX-PACS, allowing for the viewing, manipulation, management, storage and retrieval of the digital images generated by the digital capture plate. This software also permits images from our digital imaging systems to be integrated into patients’ medical records in the Cornerstone system, as well as transferred to other practice management systems. IDEXX I-Vision Mobile is an application that allows veterinarians with the I-Vision DR and IDEXX I-Vision CR systems, as well as our legacy digital radiography systems, to request, view and send images using an iPad® or an Android™ mobile tablet. This application integrates with our IDEXX-PACS software. In November 2013, we launched the IDEXX ImageBank storage system, a cloud-based image storage solution which provides secure storage for an unlimited number of diagnostic images and is accessible anywhere through VetConnect PLUS.

WATER

We provide innovative testing solutions for easy, rapid and accurate detection and quantification of various microbiological parameters in water, helping to ensure water safety for billions of people around the world.

Our principal products are the Colilert, Colilert-18 and Colisure tests, which simultaneously detect the presence of total coliforms and E. coli in water. These organisms are broadly used as microbial indicators for potential fecal contamination in water. These products utilize nutrient-indicators that produce a change in color or fluorescence when metabolized by target microbes in the sample. Our water tests are used by government laboratories, water utilities and private certified laboratories to test drinking water in compliance with regulatory standards, including U.S. Environmental Protection Agency (“EPA”) standards. The tests also are used in evaluating water used in production processes (for example, in beverage and pharmaceutical applications) and in evaluating bottled water, recreational water, wastewater and water from private wells.

Our Enterolert products detect the presence of enterococci in drinking, waste and recreational waters. Enterococci, bacteria normally found in human and animal waste, are organisms broadly used as microbial indicators for potential fecal contamination in water. Our Pseudalert products detect the presence of Pseudomonas aeruginosa in pool, spa and bottled water. Pseudomonas aeruginosa is a pathogen that can cause “hot-tub rash,” “swimmer’s ear” and potentially fatal infections in individuals with weakened immune systems. Our Filta-Max and Filta-Max xpress products are used in the detection of Cryptosporidium and Giardia in water. Cryptosporidium and Giardia are parasites that can cause potentially fatal gastrointestinal illness if ingested. We also distribute certain water testing kits manufactured by Thermo Fisher Scientific, Inc. that complement our Cryptosporidium and Giardia testing products.

Our Quanti-Tray products, when used in conjunction with our Colilert, Colilert-18, Colisure, Enterolert, Pseudalert or Heterotrophic Plate Count (HPC) products, provide users quantitative measurements of microbial contamination rather than a presence/absence indication. Our SimPlate for HPC product detects the total number of the most common bacteria in a water sample.

We also sell consumables, parts and accessories to be used with many of our water testing products.

LIVESTOCK, POULTRY and dairy

We sell diagnostic tests and related instrumentation that are used to manage the health status of livestock and poultry, to improve bovine reproductive efficiency, and to ensure the quality and safety of milk and food. Our livestock and poultry diagnostic products are purchased by government and private laboratories that provide testing services to cattle, swine and poultry veterinarians, producers and processors. Our principal livestock and poultry diagnostic products include tests for Bovine Viral Diarrhea Virus (“BVDV”) and Porcine Reproductive and Respiratory Syndrome (“PRRS”). BVDV is a common and contagious viral infection that suppresses the immune system, making the animal susceptible to a host of other infections, impacting beef and dairy production yields as a result. PRRS is a contagious virus causing reproductive problems and respiratory diseases in swine. In the fourth quarter of 2012, we launched pregnancy tests for detecting pregnancy in bovine, which provides a means to optimize reproductive efficiency.

Our principal dairy products use our SNAP test format and are used by dairy producers and processors worldwide to detect antibiotic drug residue in milk. Our primary product line is SNAP Beta-Lactam ST, which detects penicillin, amoxicillin, ampicillin, ceftiofur and cephapirin residues, followed by SNAPduo Beta-Tetra ST, which detects certain tetracycline antibiotic residues in addition to those detected by the SNAP Beta Lactam test kits. We also sell SNAP tests for the detection of certain other contaminants in milk, such as Aflatoxin M1.

In the third quarter of 2013, we acquired a Brazilian distributor of certain of our Livestock, Poultry and Dairy products. As part of this acquisition, we acquired the right to distribute product lines of food safety products which provide microbial monitoring and drug residue tests for bovine, poultry and swine producers, meat exporters and pharmaceutical companies.

OTHER

OPTI Medical Systems

Through OPTI Medical Systems, we sell point-of-care analyzers and related consumables for use in human medical hospitals and clinics to measure electrolytes, blood gases, acid-base balance, glucose, lactate, blood urea nitrogen and ionized calcium, and to calculate other parameters such as base excess and anion gap. These OPTI analyzers are used primarily in emergency rooms, operating rooms, cardiac monitoring areas and other locations where time-critical diagnostic testing is performed within the hospital setting. Our latest generation OPTI CCA-TS2 Blood Gas and Electrolyte Analyzer, which launched in April 2013, contains many new features relative to previous generation blood gas analyzers including customized work flows, faster time to result, improved communication and a multi-level electronic control. Similar to our earlier generation OPTI CCA and OPTI Touch Electrolyte Analyzers, the OPTI CCA-TS2 runs whole blood, plasma and serum samples on single-use disposable cassettes that contain various configurations of analytes. The OPTI R Analyzer runs reusable cassettes in various analyte configurations, and the OPTI LION Stat Electrolyte Analyzer runs single-use electrolyte cassettes.

In addition, OPTI Medical Systems manufactures our VetStat analyzer, an instrument and consumable system that is a member of the IDEXX VetLab suite for the veterinary market, and provides the electrolyte module and dry slide reagents that make up the electrolyte testing functionality of the Catalyst analyzers for our CAG segment.

Other Activities

In the fourth quarter of 2008, we sold our Acarexx® and SURPASS® veterinary pharmaceutical products and a feline insulin product under development. Upon completion of this transaction we restructured the remaining pharmaceutical division and realigned two of our pharmaceutical product lines to the Rapid Assay line of business, which is part of CAG, and realigned the remainder of the products, comprised of one product line and two out-licensing arrangements, to the Other segment. We retained certain drug delivery technologies that we continue to seek to commercialize through agreements with third parties, such as pharmaceutical companies, that are also included in the Other segment.

We earned a milestone payment of $3.5 million in 2012 in connection with the achievement of certain sales milestones by the acquirer of our feline insulin product following commercialization of that product. See Note 21 to the consolidated financial statements for the year ended December 31, 2014, included in this Annual Report on Form 10-K, for additional information regarding the restructuring of our pharmaceutical business. Since realignment to the Rapid Assay line of business, we have discontinued the production and sale of the two remaining pharmaceutical product lines. Neither of these product lines is or was a significant contributor to revenue in the Rapid Assay line of business.

MARKETING AND DISTRIBUTION

We market, sell and service our products worldwide through our marketing, customer service, sales and technical service groups, as well as through independent distributors and other resellers. We maintain sales offices outside the U.S. in all major regions, including Africa, Asia Pacific, Canada, Europe and Latin America.

Generally, we select the appropriate distribution channel for our products based on the type of product, technical service requirements, number and concentration of customers, regulatory requirements and other factors. Effective January 1, 2015, we market our companion animal diagnostic products to veterinarians directly in the U.S. Prior to January 1, 2015, we marketed our companion animal diagnostic products to veterinarians both directly and through independent veterinary distributors in the U.S., with most instruments sold directly by IDEXX sales personnel and rapid assay test kits and instrument consumables supplied primarily by distributors. Outside the U.S., we sell our companion animal diagnostic products through our direct sales force and, in certain countries, through distributors and other resellers. We sell our veterinary reference laboratory diagnostic and consulting services worldwide generally through our direct sales force. We market our digital radiography products primarily through our direct sales force in the U.S. and Canada. We market our software products primarily through our direct sales force in the U.S., Canada, Europe and Australia. We market our Water and LPD products primarily through our direct sales force in the U.S. and Canada. Outside the U.S. and Canada, we market these products through selected independent distributors and, in certain countries, through our direct sales force. We sell our OPTI electrolyte and blood gas analyzers both directly and through independent human medical product distributors in the U.S. and we sell most of the related consumables through the distribution channel. Outside the U.S., we sell our OPTI products primarily through distributors and other resellers.

Historically, our largest customers have been the U.S. distributors of our products in the CAG segment. Our two largest CAG distributors were Henry Schein Animal Health Supply, LLC (“Henry Schein”) and MWI Veterinary Supply, Inc. (“MWI”). Henry Schein accounted for 8% of our 2014 revenue and 9% of our 2013 and 2012 revenue, and 2% and 7% of our net accounts receivable at December 31, 2014 and 2013, respectively. MWI accounted for 8% of our 2014, 2013 and 2012 revenue and 8% and 11% of our net accounts receivable at December 31, 2014 and 2013, respectively. Effective January 1, 2015, most U.S. distributors are no longer our customers as a result of our transition to an all-direct sales strategy in the U.S.

RESEARCH AND DEVELOPMENT

Our business includes the development and introduction of new products and services and may involve entry into new business areas. We maintain active research and development programs in each of our business areas. Our research and development expenses, which consist of salaries, employee benefits, materials and external consulting and development costs, were $98.3 million, $88.0 million and $82.0 million for the years ended December 31, 2014, 2013 and 2012, respectively, or 6.6%, 6.4% and 6.3% of our consolidated revenue for the years ended December 31, 2014, 2013 and 2012, respectively.

PATENTS AND LICENSES

We actively seek to obtain patent protection in the U.S. and other countries for inventions covering our products and technologies. We also license patents and technologies from third parties. Patents and licenses of patents and technologies from third parties are considered important to the Company based on a variety of factors, including providing protection for the Company’s inventions and other proprietary intellectual property, affording protection from competitors in certain markets, enabling the use of more effective and efficient technologies in the development and production of our products and offerings, strengthening the Company’s reputation and standing among customers, employees and key suppliers, and acting as a deterrent against counterfeiters, imitators and other copiers of technologies.

Important patents and licenses include:

While we consider these proprietary technology rights to be important to the Company, a range of factors help to mitigate the future effects of patent and license expiration on our results of operations and financial position. These factors include our brand strength and reputation in the marketplace; the breadth, quality and integration of our product offerings; our existing customer relationships and our customer support; our sales force; the applicable regulatory approval status for certain products; our continued investments in innovative product improvements that often result in new technologies and/or additional patents; our significant know-how, scale and investments related to manufacturing processes of associated product offerings and certain supply arrangements for consumables that are compatible with our instruments. Although the Company had and will have several patents expire during 2014 and 2015, the expiration of these patents, individually or in the aggregate, is not expected to have a material effect on the Company’s financial position or future operations. In addition, we already face notable competition in certain areas as other companies have been successful in bringing competitive products to market, despite the protections afforded by these proprietary technology rights.

To the extent some of our products may now or in the future embody technologies protected by patents, copyrights or trade secrets of others, we may be required to obtain licenses to such technologies in order to continue to sell our products. These licenses may not be available on commercially reasonable terms or at all. Our failure to obtain any such licenses may delay or prevent the sale of certain new or existing products. See “Part I, Item 1A. Risk Factors.”

PRODUCTION AND SUPPLY

Many of the instruments that we sell are manufactured by third parties and we rely on third parties to supply us with certain important components, raw materials and consumables used in or with our products. In some cases these third parties are sole or single source suppliers.

Instruments and consumables. Significant products supplied by sole and single source providers include VetTest analyzers and consumables, Catalyst Dx and Catalyst One consumables (other than electrolyte consumables and the fructosamine and T4 slides), LaserCyte and LaserCyte Dx consumables, VetAutoread, VetLyte and ProCyte Dx analyzers and consumables and components of our SNAP Pro Mobile Device.

VetTest and Catalyst chemistry slides are supplied by Ortho under supply agreements that are currently set to expire at the end of 2028. We are required to purchase all of our requirements for our current menu of VetTest and Catalyst chemistry slides from Ortho to the extent Ortho is able to supply those requirements. The agreements provide for pricing based on purchase volumes and a fixed annual inflationary adjustment. The agreements also prohibit Ortho from promoting and selling these chemistry slides in the veterinary market other than to IDEXX.

We purchase other analyzers and consumables under supply agreements with terms extending through 2032, which in some cases may be extended at our option. We have minimum purchase obligations under some of these agreements, and our failure to satisfy these obligations may result in loss of some or all of our rights under these agreements. See “Part I, Item 1A. Risk Factors.”

Other components. We purchase certain other products, raw materials and components from sole and single source suppliers. These products include certain digital radiography systems and certain components used in our SNAP rapid assay and dairy devices, livestock and poultry testing kits and water testing products.

Certain components incorporated into our SNAP products and certain livestock and poultry testing kits are supplied by Moss, Inc. (“Moss”) under a supply agreement that either party may terminate with 24 months prior written notice. Pursuant to the terms of the supply agreement, Moss has escrowed its manufacturing information relating to the components, which may be released to us upon certain triggering events that would render Moss incapable of supplying the components to us. If such a triggering event occurs, we will make royalty payments to Moss for the use of such information until Moss is able to again begin manufacturing.

We have been successful in ensuring an uninterrupted supply of products purchased from sole and single source suppliers. However, there can be no assurance that uninterrupted supply can be maintained if these agreements terminate for any reason or our suppliers otherwise are unable to satisfy our requirements for products. See “Part I, Item 1A. Risk Factors.”

BACKLOG

We do not generally maintain significant backlog orders and believe that our backlog at any particular date historically has not been indicative of future sales.

COMPETITION

We compete with many companies ranging from large human pharmaceutical and medical diagnostics companies to small businesses focused on animal health. Our companion animal veterinary diagnostic products and services compete with both reference laboratory service and in-clinic product providers. Our competitors vary in our different markets. In some markets, academic institutions, governmental agencies and other public and private research organizations conduct research activities and may commercialize products or services which could compete with our products, on their own or through joint ventures. Several of our direct and potential competitors have substantially greater capital, manufacturing, marketing, and research and development resources than we do.

Competitive factors in our different business areas are detailed below:

GOVERNMENT REGULATION

Many of our products are subject to comprehensive regulation by U.S. and foreign regulatory agencies that relate to, among other things, product approvals, manufacturing, distribution, marketing and promotion, labeling, recordkeeping, testing, quality, storage and product disposal. The following is a description of the principal regulations affecting our businesses.

Veterinary diagnostic products. Diagnostic tests for animal health infectious diseases, including most of our livestock and poultry products and our rapid assay products, are regulated in the U.S. by the Center for Veterinary Biologics within the United States Department of Agriculture (“USDA”) Animal and Plant Health Inspection Service (“APHIS”). These products must be approved by APHIS before they may be sold in the U.S. The APHIS regulatory approval process involves the submission of product performance data and manufacturing documentation. Following regulatory approval to market a product, APHIS requires that each lot of product be submitted for review before release to customers. In addition, APHIS requires special approval to market products where test results are used in part for government-mandated disease management programs. A number of foreign governments accept APHIS approval as part of their separate regulatory approvals. However, compliance with an extensive regulatory process is required in connection with marketing diagnostic products in Japan, Germany, the Netherlands and many other countries. We also are required to have a facility license from APHIS to manufacture USDA-licensed products. We have a facility license for our manufacturing facility in Westbrook, Maine and our distribution center in Memphis, Tennessee. Our manufacturing facility in Montpellier, France has been approved by APHIS and we have a permit to import products manufactured in Montpellier, France to the U.S. for distribution.

Our veterinary diagnostic instrument systems are veterinary medical devices regulated by the U.S. Food and Drug Administration (“FDA”) under the Food, Drug and Cosmetics Act (the “FDC Act”). While the sale of these products does not require premarket approval by the FDA and does not subject us to the FDA’s current Good Manufacturing Practices regulations (“cGMP”), these products must not be adulterated, mislabeled or misbranded under the FDC Act.

These instrument systems also are subject to the European Medical Device Directives, which create a single set of medical device regulations for all European Union (“EU”) member countries and require companies that wish to manufacture and distribute medical devices in EU member countries to obtain European Conformity marking for their products.

Water testing products. Our water tests are not subject to formal premarket regulatory approval. However, before a test can be used as part of a water quality monitoring program in the U.S. that is regulated by the EPA, the test must first be approved by the EPA. The EPA approval process involves submission of extensive product performance data in accordance with an EPA-approved protocol, evaluation of the data by the EPA and publication for public comment of any proposed approval in the Federal Register before final approval. Our Colilert, Colilert-18, Colisure, Quanti-Tray, Filta-Max xpress, Enterolert and SimPlate for heterotrophic plate counts products have been approved by the EPA for use under various regulatory programs. Water testing products are subject to similarly extensive regulatory processes in other countries around the world.

Dairy testing products. Dairy products used in National Conference on Interstate Milk Shipments (“NCIMS”) milk-monitoring programs in the U.S. are regulated by the FDA as veterinary medical devices. However, before products requiring FDA approval can be sold in the U.S., performance data must be submitted in accordance with an FDA-approved protocol administered by an independent body, such as the Association of Analytical Communities Research Institute (“AOAC RI”). Following approval of a product by the FDA, the product must also be approved by NCIMS, an oversight body that includes state, federal and industry representatives. Our SNAP Beta-Lactam antibiotic residue test product has been approved by the FDA, NCIMS and AOAC RI for sale in the U.S. While some foreign countries accept AOAC RI approval as part of their regulatory approval process, many countries have separate regulatory processes.

Human point-of-care electrolyte and blood gas analyzers. Our OPTI instrument systems are classified as Class II medical devices, and their design, manufacture and marketing are regulated by the FDA. Accordingly, we must comply with cGMP in the manufacture of our OPTI products. The FDA’s Quality System regulations further set forth standards for product design and manufacturing processes, require the maintenance of certain records and provide for inspections of our facilities by the FDA. New OPTI products fall into FDA classifications that require notification of and review by the FDA before marketing, and which are submitted as a 510(k) application. OPTI Medical products are also subject to the European Medical Device Directives and regulations governing the manufacture and marketing of medical devices in other countries in which they are sold.

In addition to the foregoing, our business is generally subject to various U.S. and foreign regulatory authorities, including the U.S. Federal Trade Commission (the “FTC”) and other anti-competition authorities, and any acquisitions of new products and technologies may subject us to additional areas of government regulation. These may involve food safety, medical device, water-quality and other regulations of the FDA, the EPA, the USDA, the FTC and other federal agencies, as well as state, local and foreign governments. See “Part I, Item 1A. Risk Factors.”

EMPLOYEES

As of February 6, 2015, we had approximately 6,400 employees.

AVAILABLE INFORMATION

Our principal executive offices are located at One IDEXX Drive, Westbrook, Maine 04092, our telephone number is 207-556-0300, and our Internet address is www.idexx.com. References to our website are inactive textual references only and the content of our website should not be deemed incorporated by reference into this Annual Report on Form 10-K for any purpose.

We make available free of charge at www.idexx.com our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act as soon as reasonably practicable after we file such information with, or furnish it to, the SEC. In addition, copies of our reports filed electronically with the SEC may be accessed at www.sec.gov. The public may also read and copy any materials filed with the SEC at the SEC’s Public Reference Room at 100 F Street, N.E., Washington, DC 20549. Information on the operation of the Public Reference Room may be obtained by calling the SEC at 1-800-SEC-0330.

Our Corporate Governance Guidelines and our Code of Ethics are also available on our website at www.idexx.com.

Our future operating results involve a number of risks and uncertainties. Actual events or results may differ materially from those discussed in this report. Factors that could cause or contribute to such differences include, but are not limited to, the factors discussed below, as well as those factors discussed elsewhere in this report.

Our Business Lines are Highly Competitive and Our Failure to Successfully Execute Certain Strategies Could Have a Material Negative Impact on Our Growth and Profitability

The companion animal healthcare industry is highly competitive and we anticipate increasing levels of competition from both existing competitors and new market entrants. Our ability to maintain or enhance our growth rates and our profitability depends on our successful execution of many elements of our strategy, including:

If we are unsuccessful in implementing and executing on some or all of these strategies, our rate of growth or profitability may be negatively impacted.

Our Dependence on Suppliers Could Limit Our Ability to Sell Certain Products or Negatively Affect Our Operating Results

We rely on third-party suppliers to provide components in our products, manufacture products that we do not manufacture ourselves and perform services that we do not provide ourselves, including package-delivery services. Because these suppliers are independent third parties with their own financial objectives, actions taken by them could have a materially negative effect on our results of operations. The risks of relying on suppliers include our inability to enter into contracts with third-party suppliers on reasonable terms, inconsistent or inadequate quality control, relocation of supplier facilities, supplier work stoppages and suppliers’ failure to comply with their contractual obligations. Problems with suppliers could materially negatively impact our ability to supply the market, substantially decrease sales, lead to higher costs or damage our reputation with our customers.

In addition, we currently purchase many products and materials from sole or single sources. Some of the products that we purchase from these sources are proprietary and, therefore, cannot be readily or easily replaced by alternative sources. These products include the majority of our Catalyst Dx and Catalyst One consumables; ProCyte Dx hematology, IDEXX VetAutoread hematology, VetLyte electrolyte, VetTest chemistry analyzers and related consumables and accessories; image capture plates used in our digital radiography systems; and certain components and raw materials used in our SNAP rapid assay kits and SNAP Pro Mobile Device, livestock and poultry diagnostic tests, dairy testing products, Catalyst One, LaserCyte and LaserCyte Dx hematology analyzers. To mitigate risks associated with sole and single source suppliers, we seek when possible to enter into long-term contracts that provide for an uninterrupted supply of products at predictable prices. However, some suppliers decline to enter into long-term contracts and we are required to purchase products on a purchase order basis. There can be no assurance that suppliers with which we do not have contracts will continue to supply our requirements for products, that suppliers with which we do have contracts will always fulfill their obligations under these contracts, or that any of our suppliers will not experience disruptions in their ability to supply our requirements for products. In cases where we purchase sole and single source products or components under purchase orders, we are more susceptible to unanticipated cost increases or changes in other terms of supply. In addition, under some contracts with suppliers we have minimum purchase obligations, and our failure to satisfy those obligations may result in loss of some or all of our rights under these contracts or require us to compensate the supplier. If we are unable to obtain adequate quantities of products in the future from sole and single source suppliers, we may be unable to supply the market, which could have a material adverse effect on our results of operations.

Our Biologic Products Are Complex and Difficult to Manufacture, Which Could Negatively Affect Our Ability to Supply the Market

Many of our rapid assay, livestock and poultry diagnostic, water and dairy products are biologic products, which are products that include materials from living organisms, such as antibodies, cells and sera. Manufacturing biologic products is highly complex due to the inherent variability of biological input materials and to the difficulty of controlling the interactions of these materials with other components of the products, samples and the environment. There can be no assurance that we will be able to maintain adequate sources of biological materials or that we will be able to consistently manufacture biologic products that satisfy applicable product release criteria. Further, products that meet release criteria at the time of manufacture may fall out of specification while in customer inventory, which could require us to incur expenses associated with recalling products and providing customers with new products, and could damage customer relations. Our inability to produce or obtain necessary biological materials or to successfully manufacture biologic products that incorporate such materials could result in our inability to supply the market with these products and have an adverse effect on our results of operations.

Our Business Sells Many Products through Distributors, which Present Risks that Could Negatively Affect Our Operating Results

We sell many of our products outside of the U.S. through distributors. As a result, we are dependent on these distributors to sell our products and assist us in promoting and creating a demand for our products outside the U.S. Our distributors often offer products from several different companies, and certain of our distributors may carry our competitors’ products and promote our competitors’ products over our own products. We have limited ability, if any, to cause our distributors to devote adequate resources to promoting, marketing, selling and supporting our products. We cannot assure you that we will be successful in maintaining and strengthening our relationships with our distributors or establishing relationships with new distributors who have the ability to market, sell and support our products effectively. We may rely on one or more key distributors for a product or a region, and the loss of these distributors could reduce our revenue. Distributors may face financial difficulties, including bankruptcy, which could harm our collection of accounts receivable and financial results. In addition, violations of anti-corruption or similar laws by our distributors could have a material impact on our business, and any termination of a distributor relationship may result in increased competition in the applicable jurisdiction. Failing to manage the risks associated with our use of distributors outside of the U.S. may reduce sales, increase expenses and weaken our competitive position, which could have a negative effect on our operating results.

Increased Competition and Technological Advances by Our Competitors Could Negatively Affect Our Operating Results

We face intense competition within the markets in which we sell our products and services and we expect that future competition may become even more intense. Competition could negatively affect our sales and profitability in a number of ways. New competitors may enter our markets and new or existing competitors may introduce new and competitive products and services, which could be superior to our products and services. Some of our competitors and potential competitors may choose to differentiate themselves by offering products and services similar to ours at lower sales prices, which could have an adverse effect on our results of operations through loss of market share or a decision to lower our own sales prices to remain competitive. In addition, our ability to attract and retain customers depends on the effectiveness of our customer marketing and incentive programs and multiple competitors could bundle product and service offerings through co-marketing or other arrangements, which could enhance their ability to compete with our broad product and service offering. With our transition to an all-direct sales strategy for our kits and consumables in the U.S. effective January 1, 2015, we did not renew our distribution agreements with our former key U.S. distribution partners after their expiration at the end of 2014, including exclusive distribution agreements with some of the largest U.S. distributors of companion animal veterinary products. We historically sold significant amounts of our kits and consumables through our former U.S. distribution partners, and two of our previously exclusive U.S. distribution partners joined a third former U.S. distribution partner by beginning to carry competitive instruments, consumables and rapid assay products in the fourth quarter of 2014. The promotion and sale of our competitors’ products by our former U.S. distribution partners may adversely affect the retention of our customers for our kits and consumables and the sales and distribution of our products, which could have an adverse effect on our results of operations. Some of our competitors and potential competitors, including large diagnostic and pharmaceutical companies, also have substantially greater financial resources than us, and greater experience in manufacturing, marketing, research and development and obtaining regulatory approvals than we do.

Various Government Regulations Could Limit or Delay Our Ability to Market and Sell Our Products or Otherwise Negatively Impact Our Business

In the U.S., the manufacture and sale of many of our products are regulated by agencies such as the USDA, the FDA or the EPA. Our infectious disease diagnostic tests for animal health applications, including most rapid assay canine and feline SNAP tests and livestock and poultry diagnostic tests, must be approved by the USDA prior to sale in the U.S. Our dairy testing products require approval by the FDA prior to sale in the U.S. Our water testing products must be approved by the EPA before they can be used by customers in the U.S. as a part of a water quality monitoring program required by the EPA. The manufacture and sale of our OPTI line of human point-of-care electrolytes and blood gas analyzers require approval by the FDA before they may be sold commercially in the U.S. The manufacture and sale of our products are subject to similar and sometimes more stringent laws in many foreign countries. In addition, delays in obtaining regulatory approvals for new products or product upgrades could have a negative impact on our growth and profitability.

We are also subject to a variety of federal, state, local and international laws and regulations that govern, among other things, the importation and exportation of products and our business practices in the U.S. and abroad, such as anti-corruption and anti-competition laws. These legal and regulatory requirements differ among jurisdictions around the world and are rapidly changing and increasingly complex. The costs associated with compliance with these legal and regulatory requirements are significant and likely to increase in the future. In addition, any failure to comply with these legal and regulatory requirements could result in fines, penalties and sanctions; suspensions or discontinuations of our ability to manufacture, market or sell our products; and damage to our reputation.

Increase in Corporate Hospital Ownership and Prevalence of Buying Consortiums Could Negatively Affect Our Business

An increasing percentage of veterinary hospitals in the U.S. are owned by corporations that are in the business of acquiring veterinary hospitals and/or opening new veterinary hospitals nationally or regionally. Major corporate hospital owners in the U.S. include Banfield Pet Hospital, National Veterinary Associates and VCA Antech, Inc. A similar trend exists in other countries, such as in the U.K. and Nordic countries and may in the future also develop in other international markets. Furthermore, an increasing percentage of individually-owned veterinary hospitals in the U.S. are participating in buying consortiums. Corporate owners of veterinary hospitals and buying consortiums often seek to improve profitability by leveraging the buying power they derive from their scale to obtain favorable pricing from suppliers, which could have a negative impact on our results of operations. While we have strong supplier relationships with several corporate hospital groups and buying consortiums, decisions by larger corporate owners and buying consortiums to shift their purchasing of products and services away from us and to a competitor would have a negative impact on our results of operations. In addition, certain corporate owners, most notably VCA Antech, Inc., our primary competitor in the U.S. and Canadian markets for veterinary reference laboratory diagnostic services, also operate reference laboratories that serve both their hospitals and unaffiliated hospitals. Any hospitals acquired by these companies generally shift all or a large portion of their testing to the reference laboratories operated by these companies. Furthermore, because these companies compete with us in the reference laboratory services marketplace, hospitals acquired by these companies may cease to be customers or potential customers of our other companion animal products and services, which would cause our sales of these products and services to decline.

Our Success Is Heavily Dependent Upon Proprietary Technologies

We rely on a combination of patent, trade secret, trademark and copyright laws to protect our proprietary rights. We also license patents and technologies from third parties to enable the use of third-party technologies in the development and production of our products and offerings. If we do not have adequate protection of our proprietary rights or are unable to license third-party patents and technologies on reasonable terms, our business may be affected by competitors who utilize substantially equivalent technologies that compete with us.

We cannot ensure that we will obtain issued patents, that any patents issued or licensed to us will remain valid, or that any patents owned or licensed by us will provide protection against competitors with similar technologies. Even if our patents cover products sold by our competitors, the time and expense of litigating to enforce our patent rights could be substantial, and could have an adverse effect on our results of operations. In addition, expiration of patent rights could result in substantial new competition in the markets for products previously covered by those patent rights.

In the past, we have received notices claiming that our products infringe third-party patents and we may receive such notices in the future. Patent litigation is complex and expensive, and the outcome of patent litigation can be difficult to predict. We cannot ensure that we will win a patent litigation case or negotiate an acceptable resolution of such a case. If we lose, we may be prohibited from selling certain products and/or we may be required to pay damages and/or ongoing royalties as a result of the lawsuit. Any such result could have an adverse effect on our results of operations.

Changes in Testing Patterns Could Negatively Affect Our Operating Results

The market for our companion animal, livestock and poultry diagnostic tests and our dairy and water testing products could be negatively impacted by a number of factors impacting testing practices. The introduction or broad market acceptance of vaccines or preventatives for the diseases and conditions for which we sell diagnostic tests and services could result in a decline in testing. Changes in accepted medical protocols regarding the diagnosis of certain diseases and conditions could have a similar effect. Eradication or substantial declines in the prevalence of certain diseases also could lead to a decline in diagnostic testing for such diseases. Our livestock and poultry products business in particular is subject to fluctuations resulting from changes in disease prevalence. For example, the demand for our bovine spongiform encephalopathy (“BSE”) testing products has been negatively impacted as a result of regulatory changes in the European Union, including the European Union’s Standing Committee on the Food Chain and Animal Health agreement to allow European Union member states the option to eliminate BSE testing of healthy cattle at slaughter effective March 2013. In addition, changes in government regulations or in the availability of government funds available for monitoring programs could negatively affect sales of our products that are driven by compliance testing, such as our livestock and poultry, dairy and water products. Declines in testing for any of the reasons described, along with lost opportunities associated with a reduction in veterinary visits, could have an adverse effect on our results of operations.

Our Operations and Reputation May Be Impaired if We, Our Products or Our Services Do Not Comply with Regulations and Policies Regarding Privacy and Protection of User Data

We offer products and services that store and use practice and client information, including practice management systems for veterinary practices (e.g., Cornerstone), online client communication tools and services (e.g., Pet Health Network Pro), and cloud-based technology through VetConnect PLUS that enables veterinarians to access and analyze patients’ diagnostic data from IDEXX in-clinic analyzers, our Rapid Assays and Reference Laboratories in one place. Some of these products and services rely on third-party providers for cloud storage. We also engage in e-commerce through various IDEXX websites and collect contact and other personal or identifying information from our customers and visitors to our websites.

Federal, state and international laws and regulations govern the collection, use, retention, sharing and security of personal information, including data that we receive from our employees, customers and visitors to our websites and data collected by our customers and others when using our products and services. The costs associated with compliance with these legal and regulatory requirements are significant and likely to increase in the future. In addition, we have and post on our website our own privacy policy concerning the collection, use and disclosure of user data. Any failure, or perceived failure, by us or our products and services to protect employee or customer data (including as a result of a breach by or of a third-party provider) or to comply with any privacy-related laws, government regulations or directives or industry self-regulatory principles or our posted privacy policies could result in damage to our reputation or proceedings or actions against us by governmental entities or otherwise, which could have an adverse effect on our business.

Strengthening of the Rate of Exchange for the U.S. Dollar Has a Negative Effect on Our Business

Any strengthening of the rate of exchange for the U.S. dollar against non-U.S. currencies, and in particular the Euro, British pound, Canadian dollar, Japanese yen and Australian dollar, adversely affects our results, as it reduces the dollar value of sales that are made in those currencies and reduces the profits on products manufactured or sourced in U.S. dollars and exported to international markets. Approximately 28% of our consolidated revenue for the year ended December 31, 2014 and 26% of our consolidated revenue for each of the years ended December 31, 2013 and 2012 was derived from products manufactured in the U.S. and sold internationally in local currencies. A strengthening U.S. dollar could also negatively impact the ability of customers outside the U.S. to pay for purchases denominated in U.S. dollars.

A Weak Economy Could Result in Reduced Demand for Our Products and Services or Increased Customer Credit Risk

A substantial percentage of our sales are made worldwide to the companion animal veterinary market. Demand for our companion animal diagnostic products and services is driven in part by the number of patient visits to veterinary hospitals and the practices of veterinarians with respect to the recommendations for diagnostic testing, as well as pet owner compliance with these recommendations. Economic weakness in our significant markets could cause pet owners to forgo or defer visits to veterinary hospitals or affect their willingness to approve certain diagnostic tests, comply with a treatment plan or, even more fundamentally, continue to own a pet. In addition, concerns about the financial resources of pet owners could cause veterinarians to be less likely to recommend certain diagnostic tests, and concerns about the economy may cause veterinarians to defer purchasing capital items such as our instruments and systems. These conditions, if they continue, could result in a decrease in sales of diagnostic products and services, which could have an adverse effect on our results of operations.

Demand for our water products is driven in part by the availability of funds at government laboratories, water utilities and private certified laboratories that utilize our products. Availability of funds also affects demand by government laboratories and cattle, swine and poultry producers that utilize our livestock and poultry diagnostic products, and by users of our human point-of-care diagnostic instruments. Economic weakness in our markets has caused and could continue to cause our customers to reduce their investment in such testing, which could have an adverse effect on our results of operations.

In all of our markets, a weak economy may also cause deterioration in the financial condition of our distributors and customers, which could inhibit their ability to pay us amounts owed for products delivered or services provided in a timely fashion or at all.

Risks Associated with Doing Business Internationally Could Negatively Affect Our Operating Results

For the year ended December 31, 2014, approximately 43% of our revenue was attributable to sales of products and services to customers outside the U.S., compared to 42% and 41% for the years ended December 31, 2013 and 2012, respectively. Although we intend to continue to expand our international operations and business, we may not be able to successfully promote, market, sell or distribute our products and services outside the U.S. Various risks associated with foreign operations may impact our international sales, including disruptions in transportation of our products, the differing product and service needs of foreign customers, difficulties in building and managing foreign operations, import/export duties and licensing requirements, natural disasters, unexpected regulatory and economic or political changes in foreign markets, security concerns and local business and cultural factors that differ from our normal standards and practices, including business practices prohibited by the Foreign Corrupt Practices Act and other anti-corruption laws and regulations.

Further, prices that we charge to foreign customers may be different than the prices we charge for the same products in the U.S. due to competitive, market or other factors. In addition, foreign government regulations may restrict our ability to repatriate funds currently held in foreign jurisdictions, and any repatriation of such funds to the U.S. may result in higher effective tax rates for us. Our results of operations are also susceptible to changes in foreign currency exchange rates. As a result, the mix of domestic and international sales in a particular period could have an adverse impact on our results of operations for that period.

Our Limited Experience and Small Scale in the Human Point-of-Care Market Could Inhibit Our Success in this Market

We have limited experience in the human point-of-care medical diagnostics market and we operate at a small scale in this market. This market differs in many respects from the veterinary diagnostic market. Significant differences include the impact of third-party reimbursement on diagnostic testing, more extensive regulation, greater product liability risks, larger competitors, a more segmented customer base and more rapid technological innovation. Our limited experience and small scale in the human point-of-care medical diagnostics market could negatively affect our ability to successfully manage the risks and features of this market that differ from the veterinary diagnostic market. There can be no assurance that we will be successful in achieving growth and profitability in the human point-of-care medical diagnostics market comparable to the results we have achieved in the veterinary diagnostic market.

Our Operations are Vulnerable to Interruption as a Result of Natural and Man-Made Disasters, System Disruptions and Security Breaches

The operation of all of our facilities may be vulnerable to interruption as a result of natural and man-made disasters, interruptions in power supply or other system failures. While we maintain plans to continue business under such circumstances, there can be no assurance that such plans will be successful in fully or partially mitigating the effects of such events.

We manufacture many of our significant companion animal products, including our rapid assay devices and certain instruments, many of our water testing products and certain of our livestock, poultry and dairy testing products, at a single facility in Westbrook, Maine. Certain of our companion animal products, as well as our human point-of-care products, are manufactured in Roswell, Georgia. We also manufacture certain of our livestock and poultry testing products in Bern, Switzerland and Montpellier, France. In addition, we maintain major distribution facilities in North America and in the Netherlands and major reference laboratories in Memphis, Tennessee; Leipzig, Germany; Ludwigsburg, Germany; Sacramento, California; Elmhurst, Illinois; North Grafton, Massachusetts; East Brisbane, Australia; Markham, Ontario; Wetherby, U.K; and Tokyo, Japan. Interruption of operations at any of these facilities could have an adverse effect on our results of operations.

We rely on several information systems throughout our company to keep financial records, process customer orders, manage inventory, process shipments to customers and operate other critical functions. Although we employ system backup measures, our current disaster recovery plan may be ineffective or inadequate to address all eventualities. Further, our information systems may be vulnerable to attacks by hackers and other security breaches, including computer viruses. Any such attack or breach could compromise our networks and the information stored there could be accessed, publicly disclosed, lost or stolen. If we were to experience a system disruption, attack or security breach that impacts any of our critical functions, it could result in the loss of sales and customers, financial misstatement and significant incremental costs, which could adversely affect our business. Furthermore, any access to, public disclosure of, or other loss of information as a result of an attack or security breach could result in governmental actions or private claims or proceedings, which could damage our reputation, cause a loss of confidence in our products and services, and adversely affect our business.

We maintain property and business interruption insurance to insure against the financial impact of certain events of this nature. However, this insurance may be insufficient to compensate us for the full amount of any losses that we may incur. In addition, such insurance will not compensate us for the long-term competitive effects of being out of the market for the period of any interruption in operations.

If Our Quarterly or Annual Results of Operations Fluctuate, This Fluctuation May Cause Our Stock Price to Decline

Our prior operating results have fluctuated due to a number of factors, including seasonality of certain product lines; changes in our accounting estimates; the impact of acquisitions; timing of distributor purchases, product launches, operating expenditures, customer marketing and incentive programs, changes in foreign currency exchange rates, and litigation and claim-related expenditures; increase in the number and type of competitors; changes in competitors’ product offerings; changes in our sales and distribution model; changes in the economy affecting consumer spending; and other matters. Similarly, our future operating results may vary significantly from quarter to quarter or year to year due to these and other factors, many of which are beyond our control. If our operating results or projections of future operating results do not meet the expectations of market analysts or investors in future periods, our stock price may fall.

Future Operating Results Could Be Negatively Affected by Changes in Tax Rates, the Adoption of New U.S. or International Tax Legislation or Exposure to Additional Tax Liabilities

We are subject to local, state, regional and federal tax laws in the U.S. and many other international jurisdictions. Due to economic and political conditions, the various tax rates applied to the earnings of our activities are subject to significant change. Our future tax expense could be affected by changes in the mix of earnings in countries with differing statutory tax rates, changes in the valuation of deferred tax assets and liabilities or changes in tax laws or their interpretation. Also, we have received tax rulings from various governments that have jurisdictional authority over our operations. If we are unable to meet the requirements of such agreements, or if they expire or are renewed on less favorable terms, the result could negatively impact our future earnings. Additionally, the European Commission has opened formal investigations into specific tax rulings granted by several countries to specific taxpayers. While we believe that our rulings are different than those being discussed, the ultimate resolution of such activities cannot be predicted and could also have an adverse impact on future operating results.

Our income tax filings are regularly under audit by various tax authorities, and the final determination of tax audits could be materially different than that which is reflected in historical income tax provisions and accruals. Significant judgment is required in determining our worldwide provision for income taxes. We regularly assess our exposures related to our worldwide provision for income taxes to determine the adequacy of our provision for taxes. Any reduction in these contingent liabilities or additional assessments would increase or decrease income, respectively, in the period such determination is made.

Restrictions in Our Debt Agreements or Our Inability to Obtain Financing on Favorable Terms May Limit Our Activities

Our ability to make scheduled payments and satisfy our other obligations under our unsecured revolving credit facility and senior notes depends on our future operating performance and on economic, financial, competitive and other factors beyond our control. Our business may not generate sufficient cash flows to meet these obligations or generate sufficient levels of earnings to satisfy the applicable affirmative, negative and financial covenants. Our failure to comply with these covenants and the other terms of the credit facility and senior notes could result in an event of default and acceleration of our obligations under these agreements, which may require us to seek additional financing or restructure existing debt on unfavorable terms. In addition, adverse changes in credit markets could increase our cost of borrowing and make it more difficult for us to obtain financing.

Our senior notes include provisions which stipulate a prepayment penalty for which we will be obligated in the event that we elect to repay the notes prior to their stated maturity dates. Should we elect to repay some or all of the outstanding principal balance on our senior notes, the prepayment penalty we incur could adversely affect our results of operations and cash flows.

We fund our operations, capital purchase requirements and strategic growth needs through cash on hand, funds generated from operations and amounts available under our credit facility. If we were unable to obtain financing on favorable terms, we could face restrictions that would limit our ability to execute certain strategies, which could have an adverse effect on our revenue growth and profitability.

Not applicable.

Our worldwide headquarters is located on a company-owned, 65-acre site in Westbrook, Maine where we occupy a 667,000 square foot building utilized for manufacturing, research and development, marketing, sales and general and administrative support functions. In 2011, we began the construction of an 111,100 square foot administrative building adjacent to our primary facility in Westbrook, Maine, which was completed in August 2013.

Additional property ownership and leasing arrangements with approximate square footage, purpose and location are as follows:

Additional Properties Owned:

Additional Properties Leased:

We believe that our owned and leased properties are generally in good condition, are well-maintained, and are generally suitable and adequate to carry on our business.

Due to the nature of our activities, we are at times subject to pending and threatened legal actions that arise out of the ordinary course of business. In the opinion of management, based in part upon advice of legal counsel, the disposition of any such currently pending matters is not expected to have a material effect on our results of operations, financial condition or cash flows. However, the results of legal actions cannot be predicted with certainty. Therefore, it is possible that our results of operations, financial condition or cash flows could be materially adversely affected in any particular period by the unfavorable resolution of one or more legal actions.

ITEM 4.MINE SAFETY DISCLOSURES

Not applicable.

PART II

Market Information

Our common stock is quoted on the NASDAQ Global Select Market under the symbol IDXX. The following table shows the quarterly range of high and low sale prices per share of our common stock as reported on the NASDAQ Global Select Market for the years 2013 and 2014.

Holders of Common Stock

As of February 6, 2015, there were 558 holders of record of our common stock. Because the majority of our common stock is held by brokers and other institutions on behalf of stockholders, we are unable to estimate the total number of stockholders represented by these record holders.

Purchases of Equity Securities by the Issuer

During the three months ended December 31, 2014, we repurchased shares of common stock as described below:

(1) As of December 31, 2014, our Board of Directors had approved the repurchase of up to 57 million shares of our common stock in the open market or in negotiated transactions pursuant to the Company’s share repurchase program. The program was approved and announced on August 13, 1999, and the maximum number of shares that may be purchased under the program was subsequently increased on October 4, 1999, November 16, 1999, July 21, 2000, October 20, 2003, October 12, 2004, October 12, 2005, February 14, 2007, February 13, 2008, February 10, 2010, October 12, 2011, May 7, 2013 and again on July 16, 2014. There is no specified expiration date for this repurchase program. There were no other repurchase programs outstanding during the three months ended December 31, 2014, and no repurchase programs expired during the period. Repurchases of 1,134,320 shares were made during the three months ended December 31, 2014 in transactions made pursuant to our repurchase program.

(2) During the three months ended December 31, 2014, we received 3,448 shares of our common stock that were surrendered by employees in payment for the minimum required withholding taxes due on the vesting of restricted stock units and settlement of deferred stock units. In the above table, these shares are included in columns (a) and (b), but excluded from columns (c) and (d). These shares do not reduce the number of shares that may yet be purchased under the repurchase program.

During the year ended December 31, 2014, we repurchased 4,880,524 shares of our common stock in transactions made pursuant to our repurchase program and received 46,190 shares of common stock that were surrendered by employees in payment for the minimum required withholding taxes due on the vesting of restricted stock units and settlement of deferred stock units. See Note 17 to the consolidated financial statements for the year ended December 31, 2014 included in this Annual Report on Form 10-K for further information.

Dividends

We have never paid any cash dividends on our common stock. From time to time our board of directors may consider the declaration of a dividend. However, we have no intention to pay a dividend at this time.

Stock Performance

This graph compares our total stockholder returns, the Standard & Poor’s (“S&P”) MidCap 400 Index, the S&P MidCap 400 Health Care Index and the Total Return Index for the NASDAQ Stock Market (U.S. Companies) prepared by the Center for Research in Security Prices (the “NASDAQ Index”). This graph assumes the investment of $100 on December 31, 2009 in IDEXX’s common stock, the S&P MidCap 400 Index, the S&P MidCap 400 Health Care Index and the NASDAQ Index and assumes dividends, if any, are reinvested. Measurement points are the last trading days of the years ended December 2009, 2010, 2011, 2012, 2013 and 2014.

The following table sets forth selected consolidated financial data of the Company for each of the last five fiscal years of the Company. The selected consolidated financial data presented below has been derived from the Company’s consolidated financial statements. These financial data should be read in conjunction with the consolidated financial statements, related notes and other financial information appearing elsewhere in this Annual Report on Form 10-K.

Description of Segments. Prior to January 1, 2013, we operated primarily through three business segments: diagnostic and information technology-based products and services for the veterinary market, which we continue to refer to as the Companion Animal Group (“CAG”); water quality products (“Water”); and diagnostic products for livestock and poultry health, which we referred to as Livestock and Poultry Diagnostics. We also operated two smaller operating segments that comprised products for milk quality and safety (“Dairy”) and products for the human point-of-care medical diagnostics market (“OPTI Medical”). Financial information about our Dairy and OPTI Medical operating segments was combined and presented with our remaining pharmaceutical product line and our out-licensing arrangements in an “Other” category because they did not meet the quantitative or qualitative thresholds for reportable segments.

In 2013, we combined the management of our Livestock and Poultry Diagnostics, and Dairy lines of business to more effectively realize the market synergies between the product lines and to achieve operational efficiencies. We refer to this segment as Livestock, Poultry and Dairy (“LPD”). Our OPTI Medical operating segment remains combined and presented with our remaining pharmaceutical product line and our out-licensing arrangements in an “Other” category because they do not meet the quantitative or qualitative thresholds for reportable segments. The segment income (loss) from operations discussed within this report for the year ended December 31, 2012 has been retrospectively revised to reflect this change in the composition of our reportable segments. See Note 14 to the consolidated financial statements for the year ended December 31, 2014 included in this Annual Report on Form 10-K for financial information about our segments, including our product and service categories, and our geographic areas.

Items that are not allocated to our operating segments are as follows: a portion of corporate support function and personnel-related expenses; certain manufacturing costs; corporate research and development expenses that do not align with one of our existing business or service categories; the difference between estimated and actual share-based compensation expense; certain foreign currency exchange gains and losses; and variances from standard cost for products sold resulting from changes in certain currency exchange rates. In our segment disclosure, these amounts are shown under the caption “Unallocated Amounts.”

The following is a discussion of the strategic and operating factors that we believe have the most significant effect on the performance of our business.

Companion Animal Group

Our strategy is to provide veterinarians with both the highest quality diagnostic information to support more advanced medical care and information management solutions that help demonstrate the value of diagnostics to pet owners and enable efficient practice management. By doing so, we are able to build a mutually successful partnership with our veterinarian customers based on healthy pets, loyal customers and expanding practice revenues.

CAG Diagnostics. We refer to the extensiveness and integration of our diagnostic and information management offerings as the IDEXX Diagnostic Advantage. We provide diagnostic capabilities that meet veterinarian’s diverse needs through a variety of modalities including in-clinic diagnostic solutions and outside reference laboratories. Veterinarians that utilize our full line of diagnostic modalities obtain a single view of a patient’s diagnostic results, which allows them to spot trends and achieve greater medical insight.

The breadth and complementary nature of our diagnostic solutions also provides us scale in sales and distribution. During 2013, we reorganized our companion animal diagnostic sales organization in North America, transitioning our specialty sales force that represented either in-clinic or outside reference laboratory diagnostics to account representatives who represent all CAG diagnostic modalities. In addition to this reorganization, we increased the size of our sales force resulting in smaller geographically sized sales territories. These changes allowed for more frequent customer contact by a consistent sales professional. We have experienced accelerated revenue growth subsequently to implementing this change.

To further increase our customer reach, effective January 1, 2015 we transitioned to an all-direct sales strategy in the U.S. and did not renew our current annual contracts with our U.S. distribution partners. Under this approach, we take orders, ship product, invoice and receive payment for all rapid assay test kits and instrument consumables in the U.S., aligning with our direct model for instruments, reference laboratory services, and other CAG products and services. We believe these changes will continue to strengthen customer loyalty and help support growth of our diagnostic revenues in North America.

Our diagnostic capabilities generate both recurring and non-recurring revenues. Revenues related to capital placements of our in-clinic VetLab suite of instruments and our SNAP Pro Mobile Device are non-recurring in nature, while revenues from the associated proprietary VetLab consumables, SNAP rapid assay test kits, outside reference laboratory and consulting services, and extended maintenance agreements and accessories related to our VetLab instruments are recurring in nature. Instrument sales have significantly lower gross margins than those provided by our recurring revenues, especially in the case of VetLab consumables and rapid assay test kits. Therefore, the mix of nonrecurring and recurring revenues in a particular period will impact our gross margins.

Diagnostic Capital Revenue. Revenues related to the placement of the VetLab suite of instruments are non-recurring in nature, in that the customer will buy an instrument once over its respective product life cycle, but will purchase consumables for that instrument on a recurring basis as they use that instrument for testing purposes. During the early stage of an instrument’s life cycle, we derive relatively greater revenues from instrument placements, while consumable sales become relatively more significant in later stages as the installed base of instruments increases and instrument placement revenues begin to decline. In the early stage of an instrument’s life cycle, placements are made primarily through sales transactions. As the market for the product matures, an increasing percentage of placements are made in transactions, sometimes referred to as “reagent rentals,” in which instruments are placed at customer sites at little or no cost in exchange for a long-term customer commitment to purchase instrument consumables.

Prior to the Catalyst One instrument launch during November 2014, we pre-sold the instrument under a customer marketing program through which customers preordering a Catalyst One were initially provided with the right to use a Catalyst Dx instrument. Under this marketing program, we deferred $7 million of instrument revenue in 2014, which will not be recognized until delivery of the Catalyst One instrument occurs in 2015.

We place our Catalyst chemistry analyzers through sales, leases, rental and other programs. In addition, we continue to place VetTest instruments through sales, lease, rental and other programs, with substantially all of our revenues from that product line currently derived from consumable sales. As of December 31, 2014, these three chemistry analyzers provided for a combined active installed base of approximately 38,000 units. Approximately half of 2014 Catalyst analyzer placements were to customers that are new to IDEXX, including customers who had been using instruments from one of our competitors, sometimes referred to as competitive accounts. Generally, placement of an instrument with a competitive

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Our market risk consists primarily of foreign currency exchange risk and interest rate risk. Our functional currency is the U.S. dollar and our primary manufacturing operations and inventory supply contracts are in the U.S., but we distribute our products worldwide both through direct export and through our foreign subsidiaries. Our primary foreign currency transaction risk consists of intercompany purchases and sales of products and we attempt to mitigate this risk through our hedging program described below. Approximately 28% of our consolidated revenue for the year ended December 31, 2014 and 26% of our consolidated revenue for each of the years ended December 31, 2013 and 2012 was derived from products manufactured in the U.S. and sold internationally in local currencies. The functional currency of most of our subsidiaries is their local currency. For two of our subsidiaries located in the Netherlands and Singapore, the functional currency is the U.S. dollar.

The primary purpose of our foreign currency hedging activities is to protect against the volatility associated with foreign currency transactions. We also utilize natural hedges to mitigate our transaction and commitment exposures. Our corporate policy prescribes the range of allowable hedging activity. We enter into foreign currency exchange contracts with large multinational financial institutions and we do not hold or engage in transactions involving derivative instruments for purposes other than risk management. Our accounting policies for these contracts are based on our designation of such instruments as hedging transactions. If a derivative instrument qualifies for hedge accounting, changes in the fair value of the derivative instrument from the effective portion of the hedge are deferred in accumulated other comprehensive income, net of tax, and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. We immediately record in earnings the extent to which a hedge instrument is not effective in achieving offsetting changes in fair value. We primarily utilize foreign currency exchange contracts with durations of less than 24 months.

Our subsidiaries enter into foreign currency exchange contracts to manage the exchange risk associated with their forecasted intercompany inventory purchases and sales for the next year. From time to time, we may also enter into foreign currency exchange contracts to minimize the impact of foreign currency fluctuations associated with specific, significant transactions. As of December 31, 2014 and 2013, we were not hedging any specific, significant transactions.

Our foreign currency hedging strategy is consistent with prior periods and there were no material changes in our market risk exposure during the year ended December 31, 2014. We enter into foreign currency exchange contracts designated as cash flow hedges for amounts that are less than the full value of forecasted intercompany purchases and sales and for amounts that are equivalent to, or less than, other significant transactions. As a result, no significant ineffectiveness has resulted or been recorded through the statements of operations for the years ended December 31, 2014, 2013 and 2012. Our hedging strategy related to intercompany inventory purchases and sales is to employ the full amount of our hedges for the succeeding year at the conclusion of our budgeting process for that year. Quarterly, we enter into contracts to hedge incremental portions of anticipated foreign currency transactions for the current and following year. Accordingly, our risk with respect to foreign currency exchange rate fluctuations may vary throughout each annual cycle.

We enter into hedge agreements where we believe we have meaningful exposure to foreign currency exchange risk. The notional amount of foreign currency exchange contracts to hedge forecasted intercompany purchases and sales totaled $186.7 million and $168.3 million at December 31, 2014 and December 31, 2013, respectively. At December 31, 2014, we had $8.1 million of net unrealized gains on foreign currency exchange contracts recorded in accumulated other comprehensive income, net of tax expense.

Our foreign currency exchange risk is comprised of three components: 1) local currency revenues and expenses; 2) the impact of settled hedge contracts; and 3) intercompany and monetary balances for our subsidiaries that are denominated in a currency that is different from the functional currency used by each subsidiary. Based on projected revenues and expenses for 2015, excluding the impact of intercompany and trade balances denominated in currencies other than the functional subsidiary currencies, a 10% strengthening of the U.S. dollar would reduce operating income by approximately $9 million. The impact of the intercompany and monetary balances referred to in the third component above have been excluded, as they are transacted at multiple times during the year and we are not able to reliably forecast the impact that changes in exchange rates would have.

In June 2014, we refinanced our existing $450.0 million unsecured revolving credit facility by entering into an amended and restated credit agreement relating to a five-year unsecured revolving credit facility in the principal amount of $700 million with a syndicate of multinational banks, which matures on June 18, 2019. We are subject to interest rate risk based on the terms of the Credit Facility to the extent that the London interbank rate (“LIBOR”) or the Canadian Dollar-denominated bankers’ acceptance rate (“CDOR”) increases. Borrowings under the Credit Facility bear interest in the range from 0.875 to 1.375 percentage points (“Credit Spread”) above the LIBOR or the CDOR, dependent on our consolidated leverage ratio, and the interest period terms for the outstanding borrowings, which range from one to six months. As discussed below, we have entered into forward fixed interest rate swaps to mitigate a portion of our interest rate risk in future periods. Borrowings outstanding under the Credit Facility at December 31, 2014 were $549 million at a weighted-average effective interest rate of 1.5%. Based on amounts outstanding and our interest rate swap effective at December 31, 2014, an increase in the LIBOR or the CDOR of 1% would increase interest expense by approximately $4.7 million on an annualized basis.

Beginning on March 30, 2012, the variable interest rate associated with $40 million of borrowings outstanding under the Credit Facility became effectively fixed at 1.36% plus the Credit Spread through June 30, 2016. Beginning on March 28, 2013, the variable interest rate associated with an additional $40 million of borrowings outstanding under the Credit Facility became effectively fixed at 1.64% plus the Credit Spread through June 30, 2016. We have designated these swaps as qualifying instruments to be accounted for as cash flow hedges. At December 31, 2014, we had $0.7 million in unrealized losses, net of income tax benefit, on interest rate swaps designated as hedging instruments. See Note 16 to the consolidated financial statements included in this Annual Report on Form 10-K for a discussion of our derivative instruments and hedging activities.

The response to this item is submitted as a separate section of this report commencing on page F-1.

Not applicable.

Disclosure Controls and Procedures

Our management is responsible for establishing and maintaining disclosure controls and procedures, as defined by the SEC in its Rules 13a-15(e) and 15d-15(e) under the Exchange Act. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of an issuer that are designed to ensure that information required to be disclosed by the issuer in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC's rules and forms. Disclosure controls and procedures include controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Based on the evaluation of our disclosure controls and procedures at December 31, 2014, our chief executive officer and chief financial officer have concluded that, as of such date, the Company’s disclosure controls and procedures were effective at the reasonable assurance level.

Report of Management on Internal Control Over Financial Reporting

We are responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act. The Company’s internal control over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with U.S. GAAP and includes those policies and procedures that:

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 and that the degree of compliance with the policies and procedures may deteriorate.

We conducted an evaluation of the effectiveness of internal control over financial reporting based on the framework in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this evaluation, we concluded that, at December 31, 2014, our internal control over financial reporting was effective.

The effectiveness of the Company's internal control over financial reporting at December 31, 2014 has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which appears herein.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the three months ended December 31, 2014 that materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

Certifications

The certifications with respect to disclosure controls and procedures and internal control over financial reporting of the Company’s chief executive officer and chief financial officer are attached as Exhibits 31.1 and 31.2 to this Annual Report on Form 10-K.

ITEM 9B.OTHER INFORMATION

Not applicable.

PART III

The information required by this Item with respect to Directors, executive officers, compliance with Section 16(a) of the Exchange Act, our code of ethics and corporate governance is omitted from this Annual Report on Form 10-K and, pursuant to Regulation 14A of the Exchange Act, is incorporated herein by reference from the sections entitled “Proposal One - Election of Directors,” “Directors and Executive Officers of the Company,” “Section 16(a) Beneficial Ownership Reporting Compliance,” “Corporate Governance – Corporate Governance Guidelines and Code of Ethics” and “Corporate Governance – Committees of the Board – Audit Committee” in the Company’s definitive Proxy Statement with respect to its 2015 Annual Meeting, which Proxy Statement will be filed with the SEC within 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K.

The information required by this Item is omitted from this Annual Report on Form 10-K and, pursuant to Regulation 14A of the Exchange Act, is incorporated herein by reference from the sections entitled “Executive Compensation – Compensation Discussion and Analysis,” “Executive Compensation – Executive Compensation Tables,” “Executive Compensation – Potential Payments Upon Termination or Change-in-Control,” “Corporate Governance – Committees of the Board – Compensation Committee – Compensation Committee Interlocks and Insider Participation” and “Compensation Committee Report” in the Company’s definitive Proxy Statement with respect to its 2015 Annual Meeting, which Proxy Statement will be filed with the SEC within 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K.

The information required by this Item with respect to Item 201(d) of Regulation S-K is omitted from this Annual Report on Form 10-K and, pursuant to Regulation 14A of the Exchange Act, is incorporated herein by reference from the section entitled “Equity Compensation Plan Information” in the Company’s definitive Proxy Statement with respect to its 2015 Annual Meeting, which Proxy Statement will be filed with the SEC within 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K. The information required by this Item with respect to Item 403 of Regulation S-K is omitted from this Annual Report on Form 10-K and, pursuant to Regulation 14A of the Exchange Act, is incorporated herein by reference from the sections entitled “Ownership of Common Stock by Directors and Officers” and “Ownership of More Than Five Percent of Our Common Stock” in the Company’s definitive Proxy Statement with respect to its 2015 Annual Meeting, which Proxy Statement will be filed with the SEC within 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K.

The information required by this Item is omitted from this Annual Report on Form 10-K and, pursuant to Regulation 14A of the Exchange Act, is incorporated herein by reference from the sections entitled “Corporate Governance – Related Person Transactions” and “Corporate Governance – Director Independence” in the Company’s definitive Proxy Statement with respect to its 2015 Annual Meeting, which Proxy Statement will be filed with the SEC within 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K.

The information required by this Item is omitted from this Annual Report on Form 10-K and, pursuant to Regulation 14A of the Exchange Act, is incorporated herein by reference from the section entitled “Independent Auditors’ Fees” in the Company’s definitive Proxy Statement with respect to its 2015 Annual Meeting, which Proxy Statement will be filed with the SEC within 120 days after the end of the fiscal year covered by this report.

PART IV

FINANCIAL STATEMENTS AND SUPPLEMENTAL DATA

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

AND

CONSOLIDATED FINANCIAL STATEMENT SCHEDULE

F-1

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of IDEXX Laboratories, Inc.

In our opinion, the consolidated financial statements listed in the accompanying index present fairly, in all material respects, the financial position of IDEXX Laboratories, Inc. and its subsidiaries at December 31, 2014 and 2013, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2014 in conformity with accounting principles generally accepted in the United States of America. In addition, in our opinion, the financial statement schedule listed in the accompanying index presents fairly, in all material respects, the information set forth therein when read in conjunction with the related consolidated financial statements. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2014, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company's management is responsible for these financial statements and financial statement schedule, for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the Report of Management on Internal Control Over Financial Reporting appearing under Item 9A. Our responsibility is to express opinions on these financial statements, on the financial statement schedule, and on the Company's internal control over financial reporting based on our integrated audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

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 (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) 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 (iii) 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.

/s/ PricewaterhouseCoopers LLP

Boston, Massachusetts

February 17, 2015

F-2

IDEXX LABORATORIES, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(in thousands, except per share amounts)

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