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AtriCure, Inc.

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7555 Innovation Way

Mason, Ohio 45040

+1 (513) 755-4100

www.atricure.com

NASDAQ:ATRC

2017 ANNUAL REPORT

 
 
 
125,000+
AtriClip Milestone

62,000+
Patients Served

2017 HRS & STS
Guidelines

100+
Patients Enrolled

AF Connect
Launched International 
Physician Training Website

Concomitant Surgical Ablation

2017 Society of Thoracic Surgeons (STS) Guidelines Summary
 Ann Thorac Surg 2017;103:329–41.

The Society of Thoracic Surgeons 2017 Clinical Practice 
Guidelines for the Surgical Treatment of Atrial Fibrillation
Vinay Badhwar, MD, J. Scott Rankin, MD, Ralph J. Damiano, Jr., MD, A. Marc Gillinov, MD, 
Faisal G. Bakaeen, MD, James R. Edgerton, MD, Jonathan M. Philpott, MD, 
Patrick M. McCarthy, MD, Steven F. Bolling, MD, Harold G. Roberts, MD, 
Vinod H. Thourani, MD, Richard J. Shemin, MD, Scott Firestone, MS, Niv Ad, MD.

Surgical Atrial Fibrillation Ablation
CLASS OF RECOMMENDATION – I
2017 HRS/EHRA/ECAS/APHRS/SOLAECE Expert Consensus Statement 
Calkins et al, Heart Rhythm (2017), doi: 10.1016/j.hrthm.2017.05.012.
AVR

AVR + CABG

Heart Team

CABG

MVR

•

•

Surgical ablation for AF can be performed without additional risk of operative mortality or
2017 HRS/EHRA/ECAS/APHRS/SOLAECE Expert 
major morbidity, and is RECOMMENDED at the time of concomitant mitral operations
Consensus Statement on Catheter and  
to restore sinus rhythm. (Class I, Level A)
Surgical ablation for AF can be performed without additional operative risk of mortality
Surgical Ablation of Atrial Fibrillation
or major morbidity, and is RECOMMENDED at the time of  concomitant isolated aortic
valve replacement, isolated coronary artery bypass graft surgery, and aortic valve
Hugh Calkins, MD (Chair), Gerhard Hindricks, MD (Vice-Chair), Riccardo Cappato, MD (Vice-Chair), 
replacement plus coronary artery bypass graft operations to restore sinus rhythm.
Young-Hoon Kim, MD, PhD (Vice-Chair), Eduardo Saad, MD, PhD (Vice-Chair) et al.
(Class I, Level B nonrandomized)
In the treatment of AF, multidisciplinary heart team assessment, treatment planning,
•
and long-term follow-up can be USEFUL AND BENEFICIAL to optimize patient outcomes.
CLASS OF RECOMMENDATION – I
(Class I, Level C expert opinion)
Mitral Valve

Aortic Valve

CLASS OF RECOMMENDATION – IIA

LAAM

CABG

AtriClip PRO·V™ Device
Product Launch

Maze

• MVR: Surgical ablation of AF is RECOMMENDED for paroxysmal, persistent, and long-

Stand-Alone
standing (LS) persistent patients who are symptomatic AF refractory or intolerant to at least
one Class 1 or 3 antiarrhythmic medication during concomitant open procedures.
(COR: I, LOE: B-NR)
•
Surgical ablation for symptomatic AF in the absence of structural heart disease that
• MVR: Surgical ablation of AF is RECOMMENDED for paroxysmal, persistent, and LS
is refractory to class I/III antiarrhythmic drugs or catheter-based therapy or both is
persistent patients who are symptomatic AF prior to initiation of antiarrhythmic therapy
REASONABLE as a primary stand-alone procedure, to restore sinus rhythm. (Class IIA,
with a class 1 or 3 antiarrhythmic medication during concomitant open procedures.
Level B randomized)
(COR: I, LOE: B-NR)
•
Surgical ablation for symptomatic persistent or longstanding persistent AF in the absence
• CABG and AVR: Surgical ablation of AF is RECOMMENDED for paroxysmal, persistent, and
of structural heart disease is REASONABLE, as a stand-alone procedure using the Cox-
LS persistent patients who are symptomatic AF refractory or intolerant to at least one Class 1
Maze III/IV lesion set compared with pulmonary vein isolation alone. (Class IIA, Level B
or 3 antiarrhythmic medication during concomitant closed procedures.
nonrandomized)
(COR: I, LOE: B-NR)

CLASS OF RECOMMENDATION – IIA

• CABG and AVR: Surgical ablation of AF is REASONABLE for paroxysmal, persistent, and

•

LS persistent patients who are symptomatic AF prior to initiation of antiarrhythmic therapy
with a class 1 or 3 antiarrhythmic medication during concomitant closed procedures.
(COR: IIA, LOE: B-NR)
Stand-Alone and Hybrid: Surgical ablation of AF is REASONABLE for persistent, and LS
persistent patients who are symptomatic AF refractory or intolerant to at least one Class 1 or
3 antiarrhythmic medication and have failed one or more attempts at catheter ablation or
prefer a surgical approach. (COR: IIA, LOE: B-NR)

DEAR SHAREHOLDERS,

We had a strong 2017 at AtriCure, with our technologies improving the lives of more than 60,000 patients globally. 
Our products continue to provide physicians with options for treating patients suffering from the most serious forms 
of atrial fibrillation (Afib). We also sold more than 34,000 AtriClip® devices in 2017 alone, bringing us to more than 
125,000 sold overall, continuing to advance the AtriClip line as the most widely used device for excluding the left 
atrial appendage.

I am pleased with the progress we are making to advance technologies for the treatment of Afib, and we remain 
squarely on track with our long-term strategy for growth. During 2017, we continued to develop a portfolio of products 
that expands our reach and impact worldwide. We are confident that our pipeline of new products, and our continued 
focus on clinical trials and education, set AtriCure up for long-term success.

We are also proud that we have created a culture that fosters a responsibility to the providers and patients we serve. 
We remain convinced that our talented team is well-positioned to help transform lives for many of the 33 million 
people affected by Afib worldwide. 

A COMMITMENT TO INNOVATION

During 2017, we continued to invest in and expand our portfolio with innovative and impactful products. We rolled 
out several new innovations in our AtriClip franchise, which continues to be the fastest growing part of our business. 
The AtriClip PRO•V™ device introduced in the back half of the year was a significant step toward a comprehensive 
strategy for minimally-invasive management of the left atrial appendage. It offers an open-ended design combined 
with a tip-first closure mechanism to enable easier navigation and placement during minimally-invasive procedures. 
Early experience and feedback from clinicians using the AtriClip PRO•V device has been overwhelmingly positive.

Building on the V platform, in early 2018, we launched the AtriClip FLEX•V™ device, our next generation open chest 
AtriClip device leveraging the same open-ended design used in the AtriClip PRO•V device. We believe that the AtriClip 
FLEX•V device will help us grow adoption in open surgeries for many years to come.

ADVANCING CLINICAL OPPORTUNITIES 

Turning to our focus on clinical science, we are making consistent progress on our clinical programs with the 
CONVERGE™ trial as our top priority. The CONVERGE trial is the first head-to-head study to evaluate the Convergent 
procedure against catheter ablation in patients with persistent and long-standing persistent Afib. The Convergent 
procedure is a multi-disciplinary therapy in which a closed-chest epicardial ablation is performed by a surgeon, and 
then complemented by an endocardial catheter ablation performed by an electrophysiologist. In 2017, we significantly 
increased the number of enrollment sites and achieved patient enrollment equal to all previous years combined. We 
also added two international sites. With this momentum in our new and existing sites, we believe we are on track to 
complete enrollment for the full 153 patients in 2018.

While we have many investments in gathering critical clinical data and improving our labeling and reimbursement 
profile globally, one trial to highlight is our company-sponsored FROST™ study. The FROST study evaluates whether our 
cryoICE™ cryoablation probe provides superior post-operative and long-term pain relief, along with return to normal 
function, as compared to current pain management in patients undergoing unilateral thoracotomy cardiac procedures. 
The study plans to evaluate lung function, pain, opiate consumption, and duration of hospital stay.

PHYSICIAN EDUCATION, SOCIETY GUIDELINES AND PUBLICATIONS

Training and education continues to be an important pillar of our growth strategy as we work to develop a vastly 
underpenetrated and underserved market. We have continued to drive adoption of surgical ablation in a concomitant 
setting through our company-sponsored education programs, as well as through collaborations with professional 
societies.

We remain the only company positioned to address the many Afib patients who too often go untreated during 
cardiac surgery. Supporting our outlook is increasing activity by medical societies, several of whom are driving 
upgraded guidelines and potential to generate more clinical data that ensures the clinician community is aware of the 
benefits of treatment and the downside of non-treatment. We are well-positioned to take advantage of these market 
tailwinds.

To that end, the Society for Thoracic Surgeons (STS) updated its guidelines for the surgical treatment of Afib in late 
2016 and elevated surgical ablation for Afib to a Class I recommendation at the time of all major forms of cardiac 
surgery. Throughout 2017, the updates to the STS and Heart Rhythm Society (HRS) guidelines have spurred energized 
discussions and enthusiasm in the provider community. Surgeons and cardiologists are recognizing the clinical, safety, 
and societal benefits of surgical ablation, and we believe the updated guidelines are starting to influence care. As 
surgeons and cardiologists increasingly recognize the clinical, safety and societal benefits of surgical ablation, we 
expect the updated guidelines to influence care and support growing procedural volumes in coming years.

FINANCIAL PERFORMANCE

We achieved total revenue of $174.7 million in 2017, with 13 percent revenue growth, marking our fifth straight year 
of double digit revenue growth. This growth was driven by our diverse portfolio of products as we continue to both 
penetrate and expand our vastly underpenetrated and underserved markets. We are on track to again achieve strong 
revenue performance in 2018, and we are leveraging our platform to drive operational efficiencies and move toward 
profitability.

ATRICURE’S EXCITING PATH FORWARD

This is an exciting time for AtriCure. We are successfully building a portfolio of products with robust clinical data 
that expands our reach, benefits patients worldwide, and creates shareholder value. As we enter 2018, we are 
endeavoring to serve more than 65,000 patients, train more than 300 physicians worldwide, complete enrollment in 
the CONVERGE trial, launch three new products, and continue to grow the AtriClip franchise. We are simultaneously 
solidifying our base open market, which remains significantly under-penetrated. With this increasing momentum, we 
expect double-digit top line growth and to be profitable on an adjusted EBITDA basis for the full fiscal year.

By the end of the decade, our goal is to have improved the lives of more than 500,000 patients. We remain steadfast 
in our commitment to improving the lives of Afib patients around the world through continued investment in 
innovation, clinical science, and education. 

I would like to once again thank my AtriCure colleagues for all they accomplished in 2017. Their commitment to 
advancing the treatment of Afib is the driving force behind our ability to deliver to shareholders and patients. On 
behalf of the Board of Directors and my AtriCure colleagues, I thank you for your support of our company and our 
strategy for long-term growth. We look forward to sharing our successes with you.

Sincerely, 

Michael H. Carrel  
President and Chief Executive Officer

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

FORM 10-K 

_________________________________ 

(cid:2)(cid:2)  ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934  

(cid:3)  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934  

For the fiscal year ended December 31, 2017 

Commission File Number 000-51470  

AtriCure, Inc. 

(Exact name of registrant as specified in its charter)  
_________________________________ 

Delaware 
State or other jurisdiction of 
incorporation or organization 

7555 Innovation Way, Mason, OH 
(Address of principal executive offices) 

34-1940305 
(I.R.S. Employer 
Identification Number) 

45040 
(Zip Code) 

Registrant’s telephone number including area code: (513) 755-4100  

Securities Registered Pursuant to Section 12(b) of the Act: 

Title of each class 
Common Stock, $.001 Par Value Per Share 

Name of each exchange on which registered 
NASDAQ Global Market 

Securities Registered Pursuant to Section 12(g) of the Act:  
None  
_________________________________ 

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  (cid:3)    No  (cid:2)  
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act.    Yes  (cid:3)    No  (cid:2)  
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during 

the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 
90 days.    Yes  (cid:2)    No  (cid:3)  

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, 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  (cid:2)    No  (cid:3)  

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 the 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.  (cid:3)  

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

Large Accelerated Filer  (cid:2)(cid:4)  Accelerated Filer  (cid:3)  Non-Accelerated Filer  (cid:3) 

Smaller Reporting Company  (cid:3)(cid:4)  Emerging Growth Company  (cid:3) 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or 

revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act: (cid:3) 

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  (cid:3)    No  (cid:2)  
The aggregate market value of the voting Common Stock held by non-affiliates of the registrant, based upon the closing sale price of the Common Stock on 

June 30, 2017, as reported on the NASDAQ Global Market, was $797.2 million.  

As of February 23, 2018, there were 34,560,275 shares of Common Stock, $.001 par value per share, outstanding.  

_________________________________ 

DOCUMENTS INCORPORATED BY REFERENCE  

Items 10, 11, 12, 13 and 14 of Part III of this Form 10-K incorporate information by reference from the registrant’s definitive proxy statement to be filed with 

the Securities and Exchange Commission within 120 days after the end of the fiscal year covered by this Form 10-K.  

  
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
(cid:2)

TABLE OF CONTENTS

PART I

ITEM 1.
ITEM 1A.(cid:2)
ITEM 1B.
ITEM 2.
ITEM 3.
ITEM 4.

BUSINESS
RISK FACTORS
UNRESOLVED STAFF COMMENTS(cid:2)
PROPERTIES
LEGAL PROCEEDINGS
MINE SAFETY DISCLOSURES

PART II

ITEM 5.

MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND 

ISSUER PURCHASES OF EQUITY SECURITIES

ITEM 6.
ITEM 7.

SELECTED FINANCIAL DATA
MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS 

ITEM 7A.
ITEM 8.
ITEM 9.

ITEM 9A.
ITEM 9B.

PART III

OF OPERATIONS

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK(cid:2)
FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND 

FINANCIAL DISCLOSURE(cid:2)
CONTROLS AND PROCEDURES(cid:2)
OTHER INFORMATION

ITEM  10.
ITEM  11.
ITEM  12.

DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
EXECUTIVE COMPENSATION
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND 

ITEM 13.

CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR

RELATED STOCKHOLDER MATTERS

ITEM 14.

PRINCIPAL ACCOUNTANT FEES AND SERVICES

INDEPENDENCE

PART IV

ITEM 15.
ITEM 16.
SIGNATURES

EXHIBITS AND FINANCIAL STATEMENT SCHEDULES(cid:2)
FORM 10-K SUMMARY 

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[This page intentionally left blank] 

PART I 

This Form 10-K, including the sections titled “Management’s Discussion and Analysis of Financial Condition and Results of 

Operations” and “Risk Factors,” contains forward-looking statements regarding our future performance. All forward-looking 
information is inherently uncertain and actual results may differ materially from assumptions, estimates or expectations reflected or 
contained in the forward-looking statements as a result of various factors, including those set forth under “Risk Factors” and 
elsewhere in this Form 10-K. Forward-looking statements address our expected future business, financial performance, financial 
condition and results of operations, and often contain words such as “intends,” “estimates,” “anticipates,” “hopes,” “projects,” 
“plans,” “expects,” “seek,” “believes,” "see," “should,” “will,” “would,” “target,” and similar expressions and the negative 
versions thereof. Such statements are based only upon current expectations of AtriCure. Any forward-looking statement speaks only as 
of the date made. Reliance should not be placed on forward-looking statements because they involve known and unknown risks, 
uncertainties and other factors which may cause actual results, performance or achievements to differ materially from those expressed 
or implied. Forward-looking statements include statements that address activities, events or developments that AtriCure expects, 
believes or anticipates will or may occur in the future. Forward-looking statements are based on AtriCure’s experience and 
perception of current conditions, trends, expected future developments and other factors it believes are appropriate under the 
circumstances and are subject to numerous risks and uncertainties, many of which are beyond AtriCure’s control. With respect to the 
forward-looking statements, we claim the protection of the safe harbor for forward-looking statements contained in the Private 
Securities Litigation Reform Act of 1995. These forward-looking statements speak only as of the date of this Form 10-K. We undertake 
no obligation to publicly update or revise any forward-looking statements to reflect new information or future events or otherwise 
unless required by law. 

 (Dollar amounts referenced in this Part 1 are in thousands.) 

ITEM 1.  BUSINESS 

Overview  

We are a leading innovator in treatments for atrial fibrillation (Afib) and left atrial appendage (LAA) management. We have 

several product lines for the ablation of cardiac tissue, including our Isolator® Synergy™ Ablation System, the first and only surgical 
device approved by the United States Food and Drug Administration (FDA) for the treatment of persistent and longstanding persistent 
forms of Afib in patients undergoing certain open heart procedures. We also offer a variety of minimally invasive ablation devices and 
access tools to facilitate the growing trend in less invasive cardiac and thoracic surgery. Our cryoICE® cryosurgery product line offers 
a variety of cryoablation devices for use in multiple types of cardiothoracic surgery. Our AtriClip® Left Atrial Appendage Exclusion 
System is specifically designed to occlude the heart’s left atrial appendage.  

Physicians have adopted our radiofrequency (RF) ablation and cryoablation systems to treat Afib in over 250,000 patients since 

2004, and we believe that we are currently the market leader in the surgical treatment of Afib. Our products are used by physicians 
during both open-heart and minimally invasive surgical procedures, either on a concomitant or standalone basis. During a concomitant 
procedure, the physician ablates cardiac tissue and/or occludes the LAA, secondary, or concomitant, to a primary structural heart 
procedure such as a valve repair or replacement or coronary artery bypass graft (CABG). Our Isolator Synergy System is approved by 
FDA for the treatment of persistent and long-standing persistent Afib concomitant to other open-heart surgical procedures. Our other 
ablation devices are all cleared for sale under FDA 510(k) clearances, including our other RF and cryoablation products, which are 
indicated for the ablation of cardiac tissue and/or the treatment of cardiac arrhythmias. In addition, our cryoICE probe is cleared for 
managing pain by temporarily ablating peripheral nerves. Our AtriClip products are 510(k)-cleared with an indication for the 
occlusion of the heart’s LAA, in conjunction with other cardiac surgical procedures. We also have a line of reusable surgical 
instruments typically used in cardiac valve replacement or repair. We anticipate that substantially all of our revenue for the foreseeable 
future will relate to products we currently sell, or are in the process of developing, which are used to ablate cardiac tissue, to occlude 
the left atrial appendage, to support mitral and aortic valve replacement and repair and/or to ablate peripheral nerves during 
cardiothoracic surgery. 

Afib affects approximately 1% of the population in the United States. It is the most common cardiac arrhythmia, or irregular 
heartbeat, encountered in clinical practice and accounts for more doctor visits and hospital days than any other cardiac arrhythmia. 
When a patient is in Afib, abnormal electrical impulses cause the atria, or upper chambers of the heart, to fibrillate, or beat rapidly, 
irregularly, and in an uncoordinated fashion. As a result, blood in the atria may become static, increasing the risk that a blood clot will 
form and cause a stroke or other serious complications. Symptoms of Afib may include heart palpitations, dizziness, fatigue and 
shortness of breath, and these symptoms may be debilitating and life threatening in some cases. Patients often progress from being in 
Afib intermittently to being in Afib continuously. Afib often occurs in conjunction with other cardiovascular diseases, including 
hypertension, congestive heart failure, left ventricular dysfunction, coronary artery disease and valvular disease.  

In the United States, we sell our products to medical centers through our direct sales force. In certain international markets, such 

as Germany, France, the United Kingdom and the Benelux region, sales are also made directly to medical centers, while other 
international sales are made to distributors who in turn sell our products to end users. Our business is primarily transacted in U.S. 
Dollars with the exception of transactions with our European subsidiaries, which are transacted in Euros or British Pounds. 

1 

Market Overview  

Afib is the most commonly diagnosed sustained cardiac arrhythmia, and affects more than 30 million people worldwide, 
including more than five million in the United States. It is estimated that the incidence of Afib doubles with each decade of an adult’s 
life. At age 40, remaining lifetime risk for Afib is 26% for men and 23% for women. Afib is an under-diagnosed condition due in 
large part to the fact that patients with Afib often have mild or no symptoms and their Afib is only diagnosed when they seek 
treatment for an associated condition, such as a structural heart disease or stroke. We believe that increasing awareness of Afib and 
improved diagnostic screening will result in an increased number of patients diagnosed with Afib. Recently, there have been several 
new diagnostic technologies introduced in the United States that allow for less invasive screening options, which should assist patients 
with more compliant and proactive identification of Afib. Also, since the prevalence of Afib increases with age, there will likely be an 
increase in the number of diagnosed Afib patients in the United States as the population ages. We believe that the same trends in the 
United States apply globally, as in many geographies the incidence of Afib is increasing as the population ages.  

Afib is a condition that doctors often find difficult to treat and, historically, there has been no widely accepted long-term cure 

for Afib. This difficulty is exacerbated with more serious forms of Afib, which are typically classified as “persistent” and “long-
standing persistent” Afib. Doctors typically begin treating Afib with pharmaceuticals, which are often ineffective, not well-tolerated 
and may be associated with serious side effects, including the risk of bleeding. Patients who cannot effectively be treated with 
pharmaceuticals may be candidates to undergo catheter-based procedures to treat their Afib. To perform a catheter ablation, an 
electrophysiologist inserts a flexible catheter into the inside of the heart, typically through the femoral vein. Catheter-based 
procedures, especially for more serious forms of Afib, are generally not indicated for patients with persistent or long-standing 
persistent Afib. Implantable devices, such as pacemakers and defibrillators, are sometimes used to reduce the frequency and symptoms 
of Afib although they are not designed to treat the underlying disease. In the past, an open-heart surgical procedure known as the “cut 
and sew Maze” was used to treat Afib. While the cut and sew Maze was highly effective, this procedure has not been widely adopted 
because it is technically challenging, highly invasive and involves long recovery times. Over the past two decades, technology 
advancements have made surgical ablation more effective, repeatable and available to cardiac surgeons around the world. Recent 
societal guideline changes from the Society of Thoracic Surgeons (STS) and Heart Rhythm Society (HRS) have increased the level of 
recommendation for concomitant surgical ablation to Class 1, meaning that it is a “recommended” treatment, no longer just 
“reasonable”, for patients who have structural heart disease and Afib. These societal guidelines are reflective of the scientific evidence 
suggesting that surgical ablation is safe and effective for all structural heart patients who also have Afib.  

Of the patients undergoing open-heart surgery globally on an annual basis, we estimate that over 250,000 are potential 
candidates for surgical ablation using our products. Today, we estimate that approximately 25-30% of those candidates are being 
treated, but we believe many of these are not treated properly or fully. Of the population diagnosed with Afib, a large percentage of 
patients are symptomatic and do not respond to pharmacological therapy. Additionally, there is a large population of patients who 
have no other underlying cardiac disease but who suffer from serious forms of Afib. Many of these patients fail traditional therapies, 
and thus we believe could benefit from a minimally invasive or multi-disciplinary (“hybrid”) Afib treatment using our products. 

In addition, Afib is thought to be responsible for approximately 15% to 20% of the estimated 700,000 strokes that occur 

annually in the United States. According to the American Heart Association, the risk of stroke is five times higher in people with Afib. 
Studies have also suggested that 90% of clots that cause strokes in patients who have Afib originate from within the LAA. Afib 
accounts for billions of dollars in hospitalization-related and office visit costs in the United States each year. Indirect costs, such as the 
management of Afib-related strokes, are believed to be significant. Because of the risk of stroke, and the significant cost burden on the 
healthcare system, more and more surgeons are routinely addressing the LAA. We believe that our AtriClip system is safer, more 
effective and easier to use than other products and techniques for occluding the LAA, and, because of this, we believe that the market 
for the AtriClip system represents a significant growth opportunity. 

Cardiothoracic surgery involving an incision through the ribcage, typically referred to as thoracotomy access, can often times 
result in post-operative pain and longer hospital recovery times as patients refrain from mobilizing their chest near the incision site. 
Most cardiothoracic surgeons will employ a multi-modal pain management protocol that includes global and local pain management 
techniques. Global techniques include epidural delivery of medication directly around the spinal cord, intravenous, or oral delivery of 
opioid and non-opioid pain medications. Local, more focused, techniques include syringe injections between vertebrates and 
cryoanalgesia, the use of cryo-energy to temporarily ablate peripheral nerves. Cryoanalgesia can be delivered using the cryoICE 
CRYO2 probe, the same probe used to treat cardiac arrhythmias. Depending on the degree of invasiveness of the cardiothoracic 
surgery, physicians and their nursing staff will take advantage of multiple modes of pain management. It is estimated that each year 
roughly 150,000 cardiothoracic procedures are performed in the United States through thoracotomy access. Hospital recovery times 
can vary from two to eight days depending on the procedure, operative complications associated with the procedure, pain management 
protocol, and other factors. In recent years, opioids have come under heavy scrutiny due to their potential for long-term dependency, 
overdose and possible death. The Center for Disease Control has reported over 42,000 deaths involving opioids in the United States in 
a single year, and both federal and local governments have proposed and implemented new regulations to curb the opioid overdose 
epidemic.  

2 

 
 
The AtriCure Solution and Products  

We believe the competing surgical and catheter-based ablation devices currently available are not ideal for safely, rapidly and 

reliably creating lesions that completely and permanently block the abnormal electrical impulses that cause Afib, particularly for 
patients with more chronic forms of Afib or patients who have failed single or multiple catheter ablations. Our products, including our 
Isolator Synergy System, enable cardiothoracic surgeons to mimic the cut and sew Maze procedure but with a faster, less invasive and 
less technically challenging approach.  

Clinical studies for the use of our ablation products to treat Afib are ongoing. Leading cardiothoracic surgeons and 
electrophysiologists, including those who serve or who have served as consultants to us, have published results of initial clinical 
studies utilizing our Isolator Synergy System. The results of these studies are to evaluate efficacy, ease of use and safety. 

We have two primary product lines for cardiac tissue ablation, a product line for left atrial appendage management and a 

product line for temporary pain management.  

Product lines for cardiac tissue ablation: 

1.)  Radio Frequency Ablation Devices. Our Isolator Synergy System and related RF devices, such as our multifunctional 
pens, represent our primary product line and currently generate the majority of our revenue. Physicians use the Isolator 
Synergy System and related RF devices in both open and minimally invasive procedures. These devices are powered by 
an Isolator Synergy Ablation and Sensing Unit (ASU), Electrosurgical Unit (ESU) or nContact RF Generator, which are 
compact power generators that we generally place with our direct customers and sell to our distributors. Our RF devices 
primarily consist of the following products:  

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Isolator Synergy and Isolator Synergy Access® Clamps. We sell multiple configurations of our Isolator Synergy 
clamps. All of our clamps are single-use disposables and have jaws that close in a parallel fashion. The parallel 
closure compresses tissue and evacuates the blood and fluids from the energy pathway in order to make the ablation 
more effective.  

COBRA Fusion® Surgical Ablation System. The COBRA Fusion Surgical Ablation System’s Versapolar™ 
technology combines bipolar temperature-controlled radio frequency (TCRF) energy control with monopolar 
energy. The COBRA Fusion System also incorporates a unique suction design that draws tissue into the device to 
create consistent, full thickness lesions without arresting and opening the heart.  

EPi-Sense® Guided Coagulation System with VisiTrax® Technology. The EPi-Sense Guided Coagulation 
System with VisiTrax technology is intended for the coagulation of cardiac tissue using RF energy using 
thoracoscopic, endoscopic and laparoscopic surgical techniques. It may be used for temporary cardiac signal sensing 
and recording during surgery when connected to an external recording device. The SUBTLE® cannula is an access 
device and conduit for the ablation device and endoscope to enable a closed chest endoscopic approach. This allows 
surgeons direct visualization while ablating on the posterior of the heart. 

(cid:2)  Multifunctional Pens and Linear Ablation Devices. Multifunctional pens are disposable RF devices that come in 
two configurations—one that makes linear ablations and one that makes spot ablations. The pens enable surgeons to 
evaluate cardiac arrhythmias, perform temporary cardiac pacing, sensing and stimulation and ablate cardiac tissue 
with the same device. When the multifunctional pens are used, surgeons are able to toggle back and forth between 
temporary pacing, sensing, stimulation and ablation. Surgeons generally use one or more of our pen devices in 
combination with Isolator Synergy clamps.  

Our linear ablation devices are disposable bi-polar linear RF ablation devices designed to allow physicians to create 
an expanded cardiac ablation lesion set. These devices also include recording electrodes which allow for pacing, 
sensing and stimulation independent of the ablation. We believe physicians are using these devices in order to 
improve long-term results for patients who have non-paroxysmal forms of Afib.  

2.) 

cryoICE Cryoablation System. The cryoICE cryoablation system consists of the cryoICE BOX generator along with a 
range of cryoICE single use and reusable cryosurgery probes. The cryoICE cryoablation system is used to ablate cardiac 
tissue for the treatment of cardiac arrhythmias. The probes come in a variety of configurations, with the primary 
difference being flexibility of the distal end of the probe.  

Product line for left atrial appendage management: 

1.)  AtriClip System. The AtriClip system is designed to occlude the left atrial appendage by mechanically clamping the 
appendage from the outside, eliminating blood flow between the left atrial appendage and the atrium while avoiding 
contact with circulating blood. We believe that the AtriClip system is potentially safer, more effective and easier to use 
than other available products and techniques for permanently excluding the left atrial appendage. The AtriClip portfolio 
includes a range of devices with different size clips, as well as different applier lengths and deployment features. 

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Product line for temporary pain management: 

1.)  CryoICE CRYO2 Cryoablation System. This system is used to apply cryo-energy to targeted intercostal peripheral 

nerves in the ribcage and temporarily relieve pain. This technique, called cryoanalgesia, is applied intra-operatively by the 
cardiothoracic surgeon and results in temporary pain relief for 30-60 days post-operatively and after discharge from the 
hospital. Sensation typically returns to the affected region of the chest after this period. Studies are ongoing to 
characterize the effects of cryoanalgesia and further refine the procedure. 

In addition to the above product lines we also sell enabling technologies including our Lumitip™ dissectors, the Fusion 
Magnetic Retriever System and a line of reusable cardiac surgery (valve) instruments. The Lumitip dissector is used by surgeons to 
separate tissues to provide access to key anatomical structures that are targeted for ablation. The Fusion Magnetic Retriever System™ 
allows access around key anatomical structures and facilitates positioning of the Cobra Fusion Surgical Ablation System™. Cardiac 
surgery instruments are used during certain surgical procedures for repair or replacement of heart valves. 

Current Afib Treatment Alternatives 

Physicians usually begin treating Afib patients with a variety of drugs intended to prevent blood clots, control heart rate or 

restore the heart to normal sinus rhythm. If a patient’s Afib cannot be adequately controlled with drug therapy, doctors may perform 
one of several procedures that vary depending on the severity of the Afib symptoms and whether or not the patient suffers from other 
forms of heart disease.  

Alternative treatments to open-heart and minimally invasive procedures include:  

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Drugs. Pharmaceutical options called anti-arrhythmics are available to treat Afib. Depending on a patient’s severity of the 
disease and heart condition, physicians typically administer these medications in a hospital setting with continuous 
monitoring. If the patient goes back into a normal rhythm, the physician will often prescribe a similar anti-arrhythmic drug 
to try to prevent a recurrence of Afib. The effectiveness of drug therapy varies based on the patient population and the 
drug being prescribed, among other factors. Often, pharmaceuticals to thin the blood (anti-coagulants) are prescribed due 
to the increased risk of stroke for patients who also have Afib. 

Implantable Devices. Implantable devices, such as defibrillators and pacemakers, can be effective in reducing the 
symptoms of Afib episodes, but neither device is intended to treat Afib. Patients may continue to experience the adverse 
effects of Afib as well as some of the symptoms and complications, including dizziness, fatigue, palpitations and stroke, 
because the Afib continues.  

Catheter Ablation. Catheter ablation is a procedure that is typically performed by an electrophysiologist. The ablations are 
made from the inside of the heart using a flexible catheter. The heart is reached via a blood vessel, most commonly 
through the femoral vein. In proportion to the prevalence of Afib, only a small number of catheter-based Afib treatments 
are performed each year in the United States.  

With the exception of the Isolator Synergy System, which may be promoted according to its FDA-approved indication for 
patients with persistent and long-standing persistent Afib undergoing certain open-heart procedures, we do not promote our products 
specifically for Afib treatment in the United States. Nevertheless, some physicians have adopted our products for use in open-heart 
and minimally invasive procedures for the treatment of Afib. During elective open-heart surgical procedures, such as bypass or valve 
surgery, cardiothoracic surgeons use our ablation systems to treat patients with a pre-existing history of Afib. Surgeons use our 
products to perform cardiac procedures that may vary depending on the length of time a patient has been diagnosed with Afib and 
whether the patient’s Afib is intermittent, known as paroxysmal, or more continuous (non-paroxysmal), which is typically further 
classified as persistent, long-standing persistent or permanent. Patients who have been diagnosed with Afib for a longer duration and 
have non-paroxysmal forms of Afib generally receive more extensive ablation procedures than patients who have been diagnosed with 
Afib for a shorter duration or who have paroxysmal Afib. Additionally, during an open-heart procedure, physicians may use our 
AtriClip system to occlude the left atrial appendage.  

For those patients with Afib who do not require a concomitant open-heart surgical procedure, surgeons have used our products 

for minimally invasive Afib treatment procedures. These procedures have generally been performed through minimally invasive 
incisions without the need to place patients on a heart-lung bypass machine.  

Additionally, some physicians are performing various minimally invasive stand-alone procedures which combine epicardial 
(surgical) ablation (ablation on the outside of the heart) with endocardial ablation and mapping techniques (from the inside of the 
heart). These combination procedures are often referred to as “hybrid” or “multi-disciplinary” approaches, in that both surgical 
ablation and catheter ablations are performed. Sometimes, both procedures are performed on the same day or in the same hospital stay, 
where other times they are performed days or weeks apart.  Physician preference as well as hospital logistics and procedural room 
availability plays into the decision whether to perform hybrid ablations in a single or a staged setting. Physicians are reporting that 
they are performing these procedures utilizing certain of our products to primarily treat patients who have non-paroxysmal forms of 
Afib. 

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Business Strategy  

Our mission is to expand the treatment options for patients who suffer from Afib or have a high risk of stroke through the 
continued development of our technologies and expansion of our product offerings, global commercial expansion and clinical science 
investments. The key elements of our strategy include:  

New Product Innovation. Our product development pipeline includes projects which extend and improve our existing products, 

as well as research and development projects for new technologies. We plan to continue to develop new and innovative products, 
including those that allow us to enter new market opportunities or expand our growth in existing markets.  

Invest in Clinical Science and Build Physician Relationships. We continue to invest in landmark clinical trials to validate the 

long term results of procedures using our products and to support applications to regulatory agencies for expanded indications. We 
also make clinical research grants to support our product development efforts. 

We have formed consulting relationships with cardiothoracic surgeons, cardiologists, electrophysiologists and thoracic surgeons 

who work with us to evaluate and develop our products. Additionally, we have formed advisory boards made up of key opinion 
leaders (KOLs) in multiple specialties to oversee our training and clinical programs. We are also building these relationships to 
provide insight regarding treatment trends, input on future product direction and education for providers involved in treating the 
disease.  

In addition, we are partnering with leading surgical and cardiology societies to increase the awareness of Afib treatment options.  

In the past two years, both the Society for Thoracic Surgeons (STS) and the Heart Rhythm Society (HRS) have released new 
guidelines on the surgical treatment of Afib, including in both open-heart and minimally-invasive settings.  

Provide Training and Education. We have recruited and trained sales and physician education professionals to effectively 
communicate to our customers the unique features and benefits of our technologies as they relate to their indications for use. Our 
highly trained professionals meet with physicians at institutions around the world to provide education and technical training on the 
features, benefits and safe and effective use of our products. With the approval of our Isolator Synergy System for the treatment of 
non-paroxysmal Afib, we instituted a program to train providers on the use of the Isolator Synergy System to treat persistent Afib in 
patients undergoing open-heart surgery. We believe this training and education program has increased awareness about the surgical 
treatment of Afib during open-heart procedures, and we will continue to make investments to serve our physician customers. As a 
result of the educational process, we believe that awareness of our technologies is growing and will result in the increased use of our 
products.  

Expand Adoption of Our Minimally Invasive Products. We believe that the catalysts for expanded adoption of our minimally 

invasive products include procedural advancements, such as the hybrid or multi-disciplinary procedure, and the publication of peer-
reviewed articles, which we believe will help validate the successful, long-term use of our products for patients with Afib. We believe 
that ongoing research activities, including prospective clinical trials, new procedural techniques and anticipated presentations and 
publications will create an increased demand for our minimally invasive products.  

Evaluate Acquisition Opportunities. In the past five years, we have acquired two companies that we believe further expand our 

ability to establish a platform for long-term revenue growth. We expect to continue to be opportunistic with respect to acquisitions 
which make strategic and financial sense. 

Clinical Trials  

Clinical trials are required to support a pre-market approval (PMA) and are sometimes required for 510(k) clearance. In the 

United States, clinical trials for a significant risk device require the prior submission of an application for an Investigational Device 
Exemption (IDE) to FDA for approval. An IDE application must be submitted before initiating a new clinical trial. Some trials require 
a feasibility study followed by a pivotal trial. An IDE supplement is utilized as a means of obtaining approval to initiate a pivotal trial 
following the conclusion of a feasibility trial. We are conducting several clinical trials to validate the long-term results of procedures 
using our products and to support applications to regulatory agencies for expanded indications. In addition, we also conduct various 
studies to gather clinical data regarding our products. Key trials and studies are: 

CONVERGE. We are conducting the CONVERGE IDE clinical trial to evaluate the safety and efficacy of the EPi-Sense® 
Guided Coagulation System with VisiTrax® technology to treat symptomatic persistent Afib patients who are refractory or intolerant 
to at least one Class I and/or III anti-arrhythmic drug. We have FDA approval to enroll up to 153 patients at 27 domestic medical 
centers and three international medical centers. Enrollment began in 2014, and there are currently 108 patients enrolled and 24 
domestic medical centers and one international medical center initiated. We received FDA approval to use a Sub-Xyphoid approach as 
an alternative surgical approach during the third quarter of 2017. 

DEEP AF Pivotal Study. The DEEP AF IDE pivotal trial evaluates the safety and efficacy of the Isolator Synergy System when 

used in a staged approach, where a minimally invasive surgical ablation procedure is first performed and the patient undergoes the 
intracardiac catheter procedure approximately 90-120 days later. We have FDA approval to enroll up to 220 patients at 23 domestic 
medical centers and two international medical centers. Enrollment was temporarily suspended beginning in May 2016 while we 

5 

evaluated changes to the trial protocol with FDA. We received FDA approval on the updated trial protocol during the third quarter of 
2017. Six domestic medical centers have resumed participation in the study and five patients have been enrolled. Total enrollment in 
the trial is currently 47 patients. 

ATLAS. The ATLAS study is a non-IDE randomized pilot study evaluating outcomes of patients with risk factors for 

developing postoperative Afib as well as risk of bleeding on oral anticoagulation. There are two types of patients subject to this study:  
those with a postoperative Afib diagnosis and receiving prophylactic exclusion of the left atrial appendage with the AtriClip device 
concomitant to cardiac surgery and those with a postoperative Afib diagnosis who are medically managed. The study provides for 
enrollment up to 2,000 patients at up to 40 medical centers. Enrollment began in February 2016, and there are currently 517 patients 
enrolled and twenty-three medical centers initiated. Enrollment is expected to end in 2018. 

FROST. We are conducting a cryoanalgesia study, which is a non-IDE randomized pilot study evaluating whether 
intraoperative intercostal cryoanalgesia in conjunction with standard of care provides improved analgesic efficacy in patients 
undergoing unilateral thoracotomy cardiac procedures as compared to the current standard of care. The study involves treatment arm 
patients who receive intercostal cryoanalgesia in conjunction with standard post-operative pain management and control arm patients 
who receive standard post-operative pain management only. The study provides for enrollment of up to 100 patients at five medical 
centers. We began enrollment in June 2016, and there are currently 61 patients enrolled and four medical centers initiated.  

CEASE AF. We are also pursuing a non-IDE trial in Europe to compare staged hybrid ablation treatment (minimally invasive 

surgical ablation procedure is first performed and the patient undergoes the intracardiac catheter procedure approximately 91-180 days 
later) versus catheter ablation alone. We expect the study to have an enrollment of approximately 210 patients at twelve sites. There 
are currently 90 patients enrolled and eleven medical centers initiated. 

Sales, Marketing and Medical Education  

Our global sales and marketing efforts focus on educating physicians about our unique technologies and their technical benefits. 
We only promote our products for uses described in their regulatory agency approved or cleared labeling. We train our sales force on 
the use of our products to the extent the products are cleared or approved. 

Our sales team in the United States has approximately 125 employees supporting approximately 52 sales territories. We select 
our sales personnel based on their expertise, sales experience and reputation in the medical device industry, and their knowledge of 
cardiac surgery procedures and technologies. 

We market and sell our products in selected markets outside of the United States through independent distributors and through 
our European subsidiaries which include a combination of independent distributors and direct sales personnel. Our international sales 
team includes sales representatives focused on our direct markets, such as Germany, France, the United Kingdom and the Benelux 
region. We also have a network of distributors in Asia, South America and Canada, as well as certain countries in Europe, who market 
and sell our products. We continue to evaluate opportunities for further expansion into markets outside of the United States.  

Competition  

Our industry is competitive, subject to change and significantly affected by new product introductions and other activities of 

industry participants. Our competitors have significantly greater financial and human resources than we do and have established 
reputations with our target customers, as well as worldwide distribution channels that are more established and developed than ours. 
Our primary competitor is Medtronic, plc. We and our competitors provide products that have been adopted by physicians for the 
treatment of Afib and related conditions. Several of our competitors offer intracardiac catheter devices that are commonly used by 
electrophysiologists to treat Afib. Some of these catheter devices are FDA-approved to treat the paroxysmal form of Afib, but they are 
not FDA-approved to treat persistent or long-standing persistent Afib. AtriCure’s Isolator Synergy System is the only medical device 
FDA approved to treat Afib in a surgical setting, and the only medical device approved to treat persistent or long-standing persistent 
Afib in a concomitant setting. We believe that our products compare favorably against competing products during both open-heart and 
minimally invasive procedures. We also believe that our products compare favorably to intracardiac catheter devices when used to 
treat non-paroxysmal forms of Afib. Further, we believe our AtriClip system is an ideal medical device indicated for exclusion of the 
LAA.  

To compete effectively, we strive to demonstrate that our products are an attractive alternative to other treatments by 

differentiating our products on the basis of safety, efficacy, performance, ease of use, reputation, service and price. We have 
encountered and expect to continue to encounter potential customers who prefer products offered by our competitors.  

Third-Party Reimbursement 

Payment for patient care in the United States is generally made by third-party payors. These payors include private insurers and 
government insurance programs, such as Medicare and Medicaid. The Medicare program, the largest single payor in the United States, 
is a federal health benefit program administered by the Centers for Medicare and Medicaid Services (CMS) and covers certain medical 
care items and services for eligible beneficiaries, such as individuals over 65 years old, as well as chronically disabled individuals. 
Because Medicare beneficiaries comprise a large percentage of the populations for which our products are used, and private insurers 

6 

may follow the coverage and payment policies for Medicare, Medicare’s coding, coverage and payment policies for cardiothoracic 
surgical procedures are significant to our business.  

Medicare’s Part A program pays hospitals for inpatient services, such as cardiothoracic surgery, under the Inpatient Prospective 

Payment System (IPPS), which provides a predetermined payment based on the patient’s discharge diagnoses and surgical 
procedure(s). Discharge diagnoses are grouped into Medicare Severity Diagnosis Related Groupings (MS-DRG). There are several 
cardiac surgery MS-DRGs associated with the surgical treatment of Afib, with and without a concomitant open-heart procedure. When 
an ablation device and/or LAA exclusion device is used during a concomitant open-heart procedure, Medicare’s hospital 
reimbursement is based upon the patient’s primary surgical procedure. Reimbursement for sole-therapy minimally invasive ablation 
procedures is also influenced by the patient’s severity of illness. We believe hospital reimbursement rates for sole therapy and 
concomitant therapy cardiac surgical tissue ablation are adequate to cover the cost of our products.  

Physicians are reimbursed for their services separately under the Medicare Part B physician fee schedule. When surgically 
performing a cardiac ablation with and without a concomitant open-heart procedure, surgeons report Current Procedural Terminology 
(CPT) codes to receive a professional fee. Surgeons have a choice of CPT codes to report sole-therapy and concomitant therapy 
cardiac tissue ablation. At this time, there are no CPT codes for the physician to report surgical exclusion of the left atrial appendage.  

In addition to the Medicare program, many private payors look to CMS policies as a guideline in setting their coverage policies 

and payment amounts. The current coverage policies of these private payors may differ from the Medicare program, and payment 
rates may be higher, lower, or the same as the Medicare program. In some cases, certain private payors adopt negative coverage 
policies with respect to therapies involving our products. We engage with a third-party reimbursement consultant that provides support 
to our customers in the event of a coverage denial. 

Outside of the United States, third-party reimbursement varies widely by geography and by the type of therapy in which our 
devices are used.  For example, even though a new medical device may have been approved for commercial distribution, we may find 
limited demand for the device until coverage and sufficient reimbursement levels have been obtained from governmental and private 
third-party payers. In addition, some private third-party payers require that certain procedures or the use of certain products be 
authorized in advance as a condition of reimbursement. In some countries, cost containment initiatives and health care reforms include 
initiatives like governmental reviews of reimbursement rate benchmarks, which may significantly reduce reimbursement for 
procedures using our medical devices or deny coverage for those procedures. We are actively working to pursue market access 
initiatives in certain geographies, which includes applying for new reimbursement for therapies in which our devices are being used.  

Government Regulation  

Our products are medical devices and are subject to regulation in the United States by FDA and other federal agencies, and by 

comparable authorities in other countries. All of our products marketed in the United States have been cleared by FDA pursuant to 
section 510(k) of the Food, Drug & Cosmetic Act (FDCA). In addition, our Isolator Synergy System has received premarket approval 
from FDA for the treatment of patients with persistent and long-standing persistent Afib concomitant to another open-heart surgical 
procedure such as coronary artery bypass grafting (CABG) or cardiac valve replacement or repair.  

 FDA regulations govern nearly all of the activities that we perform, or that are performed on our behalf, to ensure that medical 

products distributed domestically or exported internationally are safe and effective for their intended uses. The activities that FDA 
regulates include the following:  

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product design, development and manufacture;  

product safety, testing, labeling and storage;  

pre-clinical testing in animals and in the laboratory;  

clinical investigations in humans;  

premarket clearance or approval;  

record keeping and document retention procedures;  

advertising and promotion;  

the import and export of products;  

product marketing, sales and distribution;  

post-marketing surveillance and medical device reporting, including reporting of deaths, serious injuries, device 
malfunctions or other adverse events; and  

corrective actions, removals and recalls.  

Unless an exemption applies, most medical devices distributed commercially in the United States require either 510(k) clearance 

or PMA from FDA.  

7 

510(k) Clearance Pathway. To obtain 510(k) clearance, we must submit a notification to FDA demonstrating that our proposed 

device is substantially equivalent to a predicate device, i.e., a previously cleared and legally marketed 510(k) device or a device that 
was in commercial distribution before May 28, 1976 for which FDA has not yet called for the submission of a PMA. Any 
modification to a 510(k)-cleared device that would constitute a major change in its intended use, design or manufacture, requires a 
new 510(k) clearance or, possibly, in connection with safety and effectiveness, approval of a PMA. FDA requires every manufacturer 
to make the determination regarding a new 510(k) submission in the first instance, but FDA may review any manufacturer’s decision.  

Premarket Approval Pathway. A PMA must be submitted to FDA if the device cannot be cleared through the 510(k) process 

and is not otherwise exempt. A PMA must be supported by extensive data, including but not limited to technical, preclinical, clinical, 
manufacturing and labeling, to demonstrate the safety and effectiveness of the device for its intended use.  

After a PMA is submitted and FDA has determined that the application is sufficiently complete to permit a substantive review, 
FDA will accept the application for filing. During the review period, FDA may request additional information or clarification of the 
information already provided. Also, an advisory panel of experts from outside FDA may be convened to review and evaluate the 
application and provide recommendations to FDA as to the approvability of the device. In addition, FDA will conduct a preapproval 
inspection of the manufacturing facility to ensure compliance with quality system regulations. Any approvals we receive may be 
limited in scope or may be contingent upon further post-approval study commitments or other conditions. New PMAs or PMA 
supplements are required for significant modification to the device, including indicated use, manufacturing process, labeling and 
design of a device that is approved through the premarket approval process. PMA supplements often require submission of the same 
type of information as a PMA, except that the supplement is limited to information needed to support any changes from the device 
covered by the original PMA and may not require as extensive clinical data or the convening of an advisory panel.  

Clinical Trials. Clinical trials are required to support a PMA and are sometimes required for 510(k) clearance. Clinical trials are 

subject to extensive recordkeeping and reporting requirements. Our clinical trials must be conducted under the oversight of an 
Institutional Review Board (IRB) for the relevant clinical trial sites and must comply with FDA regulations, including, but not limited 
to, those relating to current good clinical practices. We are also required to obtain the written informed consent of patients in form and 
substance that complies with both FDA requirements and state and federal privacy and human subject protection regulations. 
Similarly, in Europe, the clinical study must be approved by a local ethics committee and, in some cases, including studies with high-
risk devices, by the ministry of health in the applicable country.  

Educational Grants. FDA regulates manufacturers of medical devices and, in particular, the promotion of medical devices by 

manufacturers. FDA does not regulate the practice of medicine or the conduct or content of medical education conducted by third 
parties. Manufacturers may provide financial support for such third-party medical education programs in the form of educational 
grants intended to offset the cost of such programs. If the manufacturer controls or unduly influences the content of such programs, 
FDA considers those programs to be promotional activities by the manufacturer and thus subject to FDA regulation including 
promotional restrictions. We seek to ensure that the activities we support pursuant to our educational grants program are in accordance 
with FDA criteria for independent educational activities. However, we cannot provide an assurance that FDA or other government 
authorities would view the programs we have supported as being independent.  

Pervasive and Continuing Regulation. There are numerous regulatory requirements that apply after a product is cleared or 

approved. These include:  

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FDA’s Quality System Regulation (QSR) which requires manufacturers, including third-party manufacturers, to follow 
stringent design, testing, control, documentation and other quality assurance procedures during all aspects of the 
manufacturing process;  

labeling regulations and FDA prohibitions against the false or misleading promotion or the promotion of products for 
uncleared, unapproved or off-label use or indication;  

requirements to obtain clearance or approval of product modifications that could significantly affect safety or efficacy or 
that would constitute a major change in intended use;  

medical device reporting regulations which require that manufacturers comply with reporting requirements of FDA and 
report if their device may have caused or contributed to a death or serious injury or malfunctioned in a way that would 
likely cause or contribute to a death or serious injury if the malfunction were to recur;  

post-approval restrictions or conditions, including post-approval study commitments;  

post-market surveillance regulations which apply when necessary to protect the public health or to provide additional 
safety and effectiveness data for the device; and  

requirements to issue notices of correction or removal, or conduct market withdrawals or recalls where quality or other 
issues arise.  

Under FDA’s MedWatch regulation, we must submit a Medical Device Report (MDR) to FDA within 30 days whenever we 

receive information that reasonably suggests that one of our products may have caused or contributed to a death or serious injury, or 
that one of our products malfunctioned in a manner which, if the malfunction were to recur, could cause or contribute to a death or 
serious injury. Our products are often used to treat very ill patients in highly complex surgeries, only a small portion of which may 

8 

involve our products, and it is frequently difficult to determine whether our products caused or contributed to a patient injury or death 
that occurred during or after the procedure. If we are able to determine that our product caused or potentially contributed to a death or 
serious injury in the particular case, or that a malfunction of the type reported would cause death or serious injury, we submit an MDR 
on the case. Other incidents, including serious injuries or deaths, which occurred during procedures utilizing our products and that are 
not the subject of MDRs, may occur either because we are not aware of those incidents or because our investigation determined that 
the incident did not involve a malfunction of an AtriCure device and/or that an AtriCure device did not cause or contribute to a serious 
injury or death. 

In addition to FDA regulation, the advertising and promotion of medical devices are also regulated by the Federal Trade 
Commission and by state regulatory and enforcement authorities. Recently, some promotional activities for FDA-regulated products 
have been the subject of enforcement action brought under healthcare reimbursement laws and consumer protection statutes. In 
addition, under the Federal Lanham Act and similar state laws, competitors and others can initiate litigation relating to advertising 
claims.  

We have registered with FDA as a medical device manufacturer and listed our devices. FDA has broad post-market and 
regulatory enforcement powers. We are subject to unannounced inspections by FDA and our Notified Body to determine our 
compliance with the QSR, the European Union’s Medical Device Directive (MDD) and other regulations. Such inspections may 
include the manufacturing facilities of our suppliers.  

Fraud, Abuse and False Claims. We are directly and indirectly subject to various federal and state laws governing our 
relationship with healthcare providers and pertaining to healthcare fraud and abuse, including anti-kickback laws. In particular, the 
federal healthcare program Anti-Kickback Statute prohibits persons from knowingly and willfully soliciting, offering, receiving or 
providing remuneration, directly or indirectly, in exchange for or to induce either the referral of an individual, or the furnishing, 
arranging for or recommending a good or service for which payment may be made in whole or part under federal healthcare programs, 
such as the Medicare and Medicaid programs.  

The Federal False Claims Act (FCA) imposes civil liability on any person or entity that submits, or causes the submission of, a 
false or fraudulent claim to the United States Government. Damages under the FCA consist of the imposition of fines and penalties, 
and can be significant. The FCA also allows a private individual or entity with knowledge of past or present fraud against the federal 
government to sue on behalf of the government to recover the civil penalties and treble damages. The U.S. Department of Justice 
(DOJ), on behalf of the government, has previously alleged that the marketing and promotional practices of pharmaceutical and 
medical device manufacturers included the off-label promotion of products or the payment of prohibited kickbacks to doctors violated 
the FCA resulting in the submission of improper claims to federal and state healthcare entitlement programs such as Medicaid. In 
certain cases, manufacturers have entered into criminal and civil settlements with the federal government under which they entered 
into plea agreements, paid substantial monetary amounts and entered into corporate integrity agreements that require, among other 
things, substantial reporting and remedial actions going forward.  

The Advanced Medical Technology Association (AdvaMed) is one of the primary voluntary United States trade associations for 

medical device manufacturers. This association has established guidelines and protocols for medical device manufacturers in their 
relationships with healthcare professionals on matters including research and development, product training and education, grants and 
charitable contributions, support of third-party educational conferences and consulting arrangements. Adoption of the AdvaMed Code 
by a medical device manufacturer is voluntary, and while the Office of the Inspector General and other federal and state healthcare 
regulatory agencies encourage its adoption and may look to the AdvaMed Code, they do not view adoption of the AdvaMed Code as 
proof of compliance with applicable laws. We have adopted the AdvaMed Code and incorporated its principles in our standard 
operating procedures, sales force training programs, and relationships with medical professionals. In addition, we have conducted 
training sessions for employees on these principles. 

Regulation Outside of the United States. Sales of medical devices outside of the United States are subject to foreign 

governmental regulations which vary substantially from country to country. The time required to obtain certification or approval by a 
foreign country may be longer or shorter than that required for FDA clearance or approval and the requirements may be different.  

In the European Union, various directives and voluntary standards regulate the design, manufacture and labeling of medical 
devices. Devices may only be placed on the market in the European Union if they comply with the essential requirements of a relevant 
directive and bear the CE mark. Manufacturers must demonstrate that their devices comply with the relevant essential requirements 
through a conformity assessment procedure. The method for assessing conformity varies depending on the type and class of the 
product, but normally involves a combination of self-assessment by the manufacturer and a third-party assessment by a notified body, 
an independent and neutral institution appointed by a country to conduct the conformity assessment. This third-party assessment will 
include a review of documentation relating to the device and may consist of an audit of the manufacturer’s quality system and specific 
testing of the manufacturer’s device. Successful completion of a conformity assessment procedure allows a manufacturer to issue a 
declaration of conformity with the requirements of the relevant directive and affix the CE mark to the device. Devices that bear the CE 
mark may be commercially distributed throughout the member states of the European Union and other countries that comply with or 
mirror the medical device directives. A notified body has granted us a certificate of compliance with the International Organization for 
Standardization, (ISO) 13485:2003 Quality Management System. Compliance with this standard establishes the presumption that our 
quality system conforms with the essential requirements or the relevant directive. We have successfully completed the conformity 

9 

assessment procedure and affixed the CE mark to our Isolator Synergy clamps, Isolator Synergy pens, Coolrail linear pen, cryosurgery 
devices, AtriClip LAA Exclusion System, COBRA Fusion Ablation System, Numeris System and the EPi-Sense Guided Coagulation 
System with VisiTrax technology. 

Intellectual Property  

Protection of our intellectual property is a priority for our business and we rely on a combination of patent, copyright, trademark 

and trade secret laws to protect our interests. Our ability to protect and use our intellectual property rights in the continued 
development and commercialization of our technologies and products, operate without infringing the proprietary rights of others, and 
prevent others from infringing our proprietary rights, is important to our continued success. We will be able to protect our products 
and technologies from unauthorized use by third parties only to the extent that they are covered by valid and enforceable patents, 
trademarks or copyrights, or are effectively maintained as trade secrets, know-how or other proprietary information.  

We hold numerous issued United States and international patents. We also have multiple pending United States and 

international patent applications. We seek patent protection relating to technologies and products we develop in both the United States 
and in selected foreign countries. While we own much of our intellectual property, including patents, patent applications, trademarks, 
trade secrets, know-how and proprietary information, we also license patents and related technology of importance to the 
commercialization of our products. For example, to continue developing and commercializing our current and future products, we may 
license intellectual property from commercial or academic entities to obtain the rights to technology that is required for our research, 
development and commercialization activities.  

All of our employees and technical consultants are required to execute confidentiality agreements in connection with their 
employment and consulting relationships with us. We also generally require them to agree to disclose and assign to us all inventions 
conceived in connection with their relationship with us. We devote significant resources to obtaining patents and other intellectual 
property and protecting our other proprietary information. If valid and enforceable, these patents may give us a means of blocking 
competitors from using infringing technology to compete directly with our products. We also have proprietary information that may 
not be patentable. With respect to proprietary information that is not patentable, we have chosen to rely on trade secret protection and 
confidentiality agreements to protect our interests.  

Manufacturing  

We assemble, inspect, test and package the majority of our products at our facility in Ohio, and our products are sterilized by 
third parties. Purchased components are generally available from more than one supplier. However, some products, such as our RF 
generators and Fusion and EPi-Sense products, are critical components of our RF ablation lines and there are relatively few alternative 
sources of supply available.  

Order quantities and lead times for components purchased from outside suppliers are based on our forecasts derived from 
historical demand and anticipated future demand. Lead times may vary significantly depending on the size of the order, time required 
to fabricate and test the components, specific supplier requirements and current market demand for the components and 
subassemblies. To date, we have not experienced significant delays in obtaining any of our components.  

We regularly audit our suppliers for compliance with our quality system requirements, the QSR and/or applicable ISO 

standards. We are an FDA-registered medical device manufacturer and certified to ISO 13485:2003. In addition, we have successfully 
participated in the Medical Device Single Audit Program (MDSAP) and have been certified accordingly. The MDSAP program is 
recognized in Australia, Brazil, Canada, Europe, Japan and the United States.  

We are subject to numerous federal, state and local laws relating to such matters as laboratory practices, the experimental use of 

animals, the use and disposal of hazardous or potentially hazardous substances, safe working conditions, manufacturing practices, 
environmental protection and fire hazard control.  

Consulting Relationships  

We have developed consulting relationships with scientists and physicians throughout the world to support our research and 
development, clinical and training and education programs. We work closely with these thought leaders to understand unmet needs 
and emerging applications for the treatment of Afib.  

Our physician consulting agreements are intended to satisfy the requirements of the personal services “Safe Harbor” regulation 

as well as the AdvaMed and Eucomed Codes. As such, they provide for payment of a fair market value fee only for legitimate services 
rendered to us. We do not expect or require the consultant to utilize or promote our products, and consultants are required to disclose 
their relationship with us as appropriate, such as when publishing an article in which one of our products is discussed. Amounts paid 
to physicians in the United States are disclosed by us in annual reports submitted to CMS under the federal “Open Payments” law. 

10 

Employees  

We had approximately 570 full-time employees as of January 31, 2018. None of the employees were represented by a labor 
union or covered by a collective bargaining agreement. We have never experienced any employment-related work stoppages and 
consider our employee relations to be in good standing. 

Available Information  

Our principal executive offices are located at 7555 Innovation Way, Mason, Ohio and our telephone number is 513-755-4100. 

We are subject to the reporting requirements under the Securities Exchange Act of 1934. Consequently, we are required to file reports 
and information with the Securities and Exchange Commission (SEC) including reports on the following forms: Form 10-K, Form 10-
Q, Form 8-K, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 
1934. These reports and other information concerning us may be accessed through the SEC’s website at http://www.sec.gov. You may 
also find, free of charge, on our website at http://www.atricure.com, electronic copies of our Form 10-Ks, Form 10-Qs, Form 8-Ks, 
and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934. Such 
filings are placed on our website as soon as reasonably practicable after they are filed or furnished, as the case may be, with the SEC. 
Our charters for our Audit, Compensation, Nominating and Corporate Governance and Compliance, Quality and Risk Committees and 
our Code of Conduct are available on our website. In the event that we grant a waiver under our Code of Conduct to any of our 
officers or directors or make any material amendments to the Code of Conduct, we will publish it on our website within four business 
days. Information on our website is not deemed to be a part of this Form 10-K.  

ITEM 1A.  RISK FACTORS  

Risks Relating To Our Business  

If our products do not achieve widespread market acceptance in the United States, our operating results will be harmed and 
we may not achieve or sustain profitability.  

Our success will depend, in large part, on the medical community’s acceptance of our principal products in the United States, 

which is the largest revenue market in the world for medical devices. The U.S. medical community’s acceptance of our products will 
depend upon our ability to demonstrate the safety and efficacy, advantages, long-term clinical performance and cost-effectiveness of 
our products as compared to other products. In addition, acceptance of products for the treatment of Afib is dependent upon, among 
other factors, the level of screening for Afib general awareness and education of the medical community about the surgical treatment 
of Afib and the existence, effectiveness and safety of our products. Market acceptance and adoption of our products for the treatment 
of Afib also depends on the level of health insurer (including Medicare) reimbursement to physicians and hospitals for the use of our 
products.  

We cannot predict whether the U.S. medical community will accept our products or, if accepted, the extent of their use. 
Negative publicity resulting from incidents involving our products, other products related to those we sell or products or procedures 
subject to our clinical trials could have a significant adverse effect on the overall acceptance of our products. If we encounter 
difficulties growing the market for our products in the U.S., we may not be able to increase our revenue enough to achieve or sustain 
profitability, and our business and operating results will be seriously harmed.  

We rely on our ablation, ablation-related and left atrial appendage management products as our primary sources of revenue. 
If we are not successful in selling these products, or if these products become obsolete, our operating results will be harmed.  

Our ablation and ablation-related products, along with our left atrial appendage management products, generate a large majority 
of our revenue. We expect that sales of these products will continue to account for a majority of our revenue for the foreseeable future 
and that our future revenue will depend on the increasing acceptance by the medical community of our products as a standard surgical 
treatment of Afib. We may not be able to maintain or increase market acceptance of our products for a number of additional reasons, 
including those set forth elsewhere in this “Risk Factors” section. In addition, our products may become obsolete prior to the end of 
their anticipated useful lives or we may introduce new products or next-generation products prior to the end of the useful life of a prior 
generation, either of which may require us to dispose of existing inventory and related capital equipment and/or write off their value or 
accelerate their depreciation. Since we believe that physicians are using our ablation and ablation-related products largely for the 
surgical treatment of Afib, if physicians do not use our products to treat Afib, we would lose substantially all of our revenue. 

Competition from existing and new products and procedures may decrease our market share and cause our revenue to 
decline.  

The medical device industry, including the market for the treatment of Afib, is highly competitive, subject to rapid technological 

change and significantly affected by new product introductions and promotional activities of its participants. There is no assurance 
that our products will compete effectively against drugs, catheter-based ablation, implantable devices, other ablation systems, other 
products or techniques to exclude the left atrial appendage, or other surgical Afib treatments, which may be more well-established 
among doctors and hospitals. In addition, such other products or techniques may be sold or implemented at lower prices. Due to the 
size of the Afib and LAA exclusion markets, and the unmet need for an Afib cure, we anticipate that new or existing competitors may 

11 

 
develop competing products, procedures and/or clinical solutions. There are few barriers to prevent new entrants or existing 
competitors from developing products to compete directly with ours. Companies also compete with us to attract qualified scientific 
and technical personnel as well as funding. Some of our competitors have greater financial, manufacturing, marketing and research 
and development capabilities than we have and may obtain FDA approval or clearance for their products before we do. The 
introduction of new products, procedures or clinical solutions, or of our competitors obtaining FDA approvals or clearances, may 
result in price reductions, reduced margins, loss of market share, or may render our products obsolete, which could adversely affect 
our revenue and future profitability. 

Worldwide economic conditions may reduce demand for procedures using our products or otherwise result in adverse 
implications on our business, operating results and financial condition.  

General worldwide economic conditions may deteriorate due to the effects of, among other developments, general credit market 

crises, collateral effects on the finance and banking industries, concerns about inflation, slower economic activity which may be 
caused by many factors, including natural disasters or other catastrophes, decreased consumer confidence, reduced corporate profits 
and capital spending, adverse business conditions and liquidity concerns. We are unable to predict the extent to which current or future 
worldwide economic conditions may impact our business. Specifically, because many procedures using our products are elective, they 
can be deferred by patients. In addition, patients may not be as willing under current or future economic conditions to take time off 
from work or spend their money on deductibles and co-payments often required in connection with the procedures that use our 
products.  

Beyond patient demand, any current or future deterioration in worldwide economic conditions, including in particular their 
effects on the credit and capital markets, may have other adverse implications for our business. For example, our customers’ ability to 
borrow money from their existing lenders or to obtain credit from other sources to purchase our products may be impaired, resulting in 
a decrease in sales. Although we maintain allowances for estimated losses resulting from the inability of our customers to make 
required payments, we cannot guarantee that we will accurately predict the loss rates we will experience, especially given any 
continuing turmoil in the worldwide economy. A significant change in the liquidity or financial condition of our customers could 
cause unfavorable trends in our receivable collections and additional allowances may be required, which could adversely affect our 
operating results. Further, given the economic and political challenges facing Eurozone countries, concerns have been raised regarding 
the stability and suitability of the Euro as a single currency. The failure of the Euro as a single currency could adversely affect our 
operating results. 

Healthcare costs have risen significantly over the past decade. There have been and may continue to be proposals by 
legislators, regulators and third-party payors to keep, contain or reduce healthcare costs.  

The continuing efforts of governments, insurance companies and other payors of healthcare costs to contain or reduce these 
costs, combined with closer scrutiny of such costs, could lead to patients being unable to obtain approval for payment from these 
third-party payors. The cost containment measures that healthcare providers are instituting both in the U.S. and internationally could 
harm our business. Some healthcare providers in the U.S. have adopted or are considering a managed care system in which the 
providers contract to provide comprehensive healthcare for a fixed cost per person. Healthcare providers may attempt to control costs 
by authorizing fewer elective surgical procedures or by requiring the use of the least expensive devices possible, which could 
adversely affect the demand for our products or the price at which we can sell our products. Some healthcare providers have sought to 
consolidate and create new companies with greater market power, including hospitals. As the healthcare industry consolidates, 
competition to provide products and services has become and will continue to become more intense. This has resulted and likely will 
continue to result in greater pricing pressures and the exclusion of certain suppliers from important marketing segments. 

We face significant uncertainty in the industry due to government healthcare reform.  

The U.S. Patient Protection and Affordable Care Act (PPACA), as amended, and other healthcare reform have a significant 

impact on our business. The impact of the PPACA on the healthcare industry is extensive and includes, among other things, the 
federal government assuming a larger role in the healthcare system, expanding healthcare coverage of United States citizens and 
mandating basic healthcare benefits. The PPACA impacted our business by requiring an excise tax on all U.S. medical device sales 
beginning in January 2013. In December 2015, the U.S. government approved the suspension of the excise tax on medical device sales 
beginning January 1, 2016 through December 31, 2017. Then, in January 2018, the U.S. government approved an additional 
suspension of the excise tax on medical device sales from January 1, 2018 to December 31, 2019. When in effect, the increased tax 
burden from the PPACA significantly impacts our results of operations and cash flows.  

It is possible that legislation will be introduced and passed by the Republican-controlled Congress repealing the PPACA in 
whole or in part and signed into law.  Because of the continued uncertainty about the implementation or continued effectiveness of the 
PPACA, including the potential for further legal challenges or repeal of that legislation, we cannot quantify or predict with any 
certainty the likely impact of the PPACA or its repeal on our business model, prospects, financial condition or results of operations.  

Any healthcare reforms enacted in the future may, like the PPACA, be phased in over a number of years but, if enacted, could 

reduce our revenue, increase our costs or require us to revise the ways in which we conduct business or put us at risk for loss of 

12 

business. In addition, our results of operations, financial position and cash flows could be materially adversely affected by changes 
under the PPACA and changes under any federal or state legislation adopted in the future.  

We sell our products outside of the United States and we are subject to various regulatory and other risks relating to 
international operations, which could harm our revenue and profitability.  

Doing business outside of the United States exposes us to risks distinct from those we face in our domestic operations. For 

example, our operations outside of the United States are subject to different regulatory requirements in each jurisdiction where we 
operate or have sales. Our failure, or the failure of our distributors, to comply with current or future foreign regulatory requirements, 
or the assertion by foreign authorities that we or our distributors have failed to comply, could result in adverse consequences, 
including enforcement actions, fines and penalties, recalls, cessation of sales, civil and criminal prosecution, and the consequences 
could be disproportionate to the relative contribution of our international operations to our results of operations. Moreover, if political 
or economic conditions deteriorate in these countries, or if any of these countries are affected by a natural disaster or other 
catastrophe, our ability to conduct our international operations or collect on international accounts receivable could be limited and our 
costs could be increased, which could negatively affect our operating results. Engaging in business outside of the United States 
inherently involves a number of other difficulties and risks, including, but not limited to:  

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export restrictions and controls relating to technology;  

pricing pressure that we may experience internationally;  

difficulties in enforcing agreements and collecting receivables through certain foreign legal systems;  

political and economic instability;  

consequences arising from natural disasters and other similar catastrophes, such as hurricanes, tornados, earthquakes, 
floods and tsunamis;  

potentially adverse tax consequences, tariffs and other trade barriers;  

the need to hire additional personnel to promote our products outside of the United States;  

international terrorism and anti-American sentiment;  

fluctuations in exchange rates for future sales denominated in foreign currency, which represent a majority of our sales 
outside of the United States; and  

difficulty in obtaining and enforcing intellectual property rights.  

In addition, our business practices in foreign countries must comply with U.S. laws, including the Foreign Corrupt Practices Act 
(FCPA). We have a compliance program in place designed to reduce the likelihood of potential violations of the FCPA and other U.S. 
and foreign anti-bribery and anti-corruption laws. If violations were to occur, they could subject us to fines and other penalties as well 
as increased compliance costs.  

Our exposure to each of these risks may increase our costs and require significant management attention. We cannot assure you 

that one or more of these factors will not harm our business. 

Our quarterly financial results are likely to fluctuate significantly because our sales prospects are uncertain.  

Due to current worldwide economic conditions, natural disasters and other factors discussed in this “Risk Factors” section which 

may impact our sales results, our quarterly operating results are difficult to predict and may fluctuate significantly from quarter to 
quarter or from prior year to current year periods, particularly because our sales prospects are uncertain. These fluctuations may also 
affect our annual operating results and may cause those results to fluctuate unexpectedly from year to year.  

Restrictions in our ability to train surgeons in the use of our products could reduce the market acceptance of our products or 
result in injuries to patients or other adverse events that could possibly lead to litigation that could harm us or could reduce 
our revenue.  

It is critical to the success of our sales efforts to ensure that there are a sufficient number of surgeons familiar with, trained on 
and proficient in the use of our products. While we train providers in the safe and effective use of our products, we do not train them 
to use any of our products specifically to treat Afib unless the product is FDA-approved specifically for the treatment of Afib. Our 
Isolator Synergy System is approved for the treatment of persistent and long standing persistent forms of Afib concomitant to open 
heart bypass graft or valve replacement surgery. The procedure using our Isolator Synergy System in this manner is known as the 
MAZE IV™ procedure. Following FDA approval, we instituted a program to train all new and existing users of the Isolator Synergy 
System in the MAZE IV procedure. We also make available training on the safe and effective use of our other products consistent 
with their FDA approved or cleared indications, but we cannot provide assurance that a sufficient number of surgeons will become 
aware of training programs.  

13 

Surgeons may not commit enough time to sufficiently learn our products.   

In order for surgeons to learn to use our products, they must attend structured training sessions in order to familiarize themselves 

with the products and they must be committed to learning the technology. Further, surgeons must utilize the technology on a regular 
basis to ensure they maintain the skill set necessary to use the products. Continued market acceptance could be delayed by lack of 
surgeon willingness to attend training sessions, by the time required to complete this training or by state or institutional restrictions on 
our ability to provide training. An inability to train a sufficient number of surgeons to generate adequate demand for our products 
could have a material adverse impact on our financial condition and cash flow.    

Our marketing strategy is dependent on collaboration with physician “thought leaders.”   

Our research and development efforts and our marketing strategy depend heavily on obtaining support, physician training 

assistance and collaboration from highly-regarded physicians at leading commercial and research hospitals, particularly in the U.S. 
and Europe. If we are unable to gain and/or maintain such support, training services and collaboration, or if the reputation or standing 
of these physicians is impaired or otherwise adversely affected, our ability to market our products and, as a result, our financial 
condition, results of operations and cash flow, could be materially and adversely affected. 

Unless and until we obtain additional FDA approval for our products, we will not be able to promote many of them to treat 
Afib or to prevent stroke, and our ability to maintain and grow our business could be harmed.  

Although our Isolator Synergy System received FDA approval for the treatment of some forms of Afib in certain procedures, we 

have not received FDA clearance or approval to promote our other products for the treatment of Afib or the prevention of stroke. See 
“Business—Government Regulation.” Unless and until we obtain FDA clearance or approval for the use of our products to treat Afib 
or prevent stroke, we, and others acting on our behalf, may not claim in the U.S. that our products are safe and effective for such uses 
or otherwise promote them for such uses. Similar restrictions exist outside of the U.S. There is no assurance that future clearances or 
approvals of our products will be granted or that current or future clearances or approvals will not be withdrawn. Failure to obtain a 
clearance or approval or loss of an existing clearance or approval, could hurt our ability to maintain and grow our business.  

In order to obtain additional FDA approvals to promote our products for the treatment of Afib or reduction in stroke risk, we 

will need to demonstrate in clinical trials that our products are safe and effective for such use. Development of sufficient and 
appropriate clinical protocols to demonstrate quality, safety and efficacy may be required and we may not adequately develop such 
protocols to support approval. We cannot assure you that any of our clinical trials will be completed in a timely manner or 
successfully or that the results obtained will be acceptable to FDA. We, FDA or the IRB may suspend a clinical trial at any time for 
various reasons, including a belief that the risks to study subjects outweigh the anticipated benefits. In addition, if the results obtained 
from our clinical trials, any other clinical studies, or clinical or commercial experience indicate that any of our products are not safe or 
effective, or not as safe or effective as other treatment options, FDA may not approve our products for the treatment of Afib or 
reduction in stroke risk, and the adoption of the use of our products may suffer and our business would be harmed.  

Our clinical trials are typically time consuming, expensive and the outcome uncertain. Delays in patient enrollment or failure of 
patients to consent or continue to participate in a clinical trial may cause an increase in costs and delays in the approval and attempted 
commercialization of our products or result in the failure of the clinical trial. Conducting successful clinical studies may require the 
enrollment of large numbers of clinical sites and patients, and suitable patients may be difficult to identify and recruit. Patient 
enrollment in clinical trials and completion of patient participation and follow-up depends on many factors, including the size of the 
patient population, the nature of the trial protocol, the attractiveness of, or the discomforts and risks associated with, the treatments 
received by enrolled subjects, the availability of appropriate clinical trial investigators, support staff, and proximity of patients to 
clinical sites and ability to comply with the eligibility and exclusion criteria for participation in the clinical trial and patient 
compliance. For example, patients may be discouraged from enrolling in our clinical trials if the trial protocol requires them to 
undergo extensive post-treatment procedures or follow-up to assess the safety and effectiveness of our products or if they determine 
that the treatments received under the trial protocols are not attractive or involve unacceptable risks or discomforts. Patients may also 
not participate in our clinical trials if they choose to participate in contemporaneous clinical trials of competitive products or they can 
obtain the treatment without participating in our trial.  

We may experience unfavorable publicity relating to our business and our industry. This publicity could have a negative 
impact on our ability to attract and retain customers, our sales, clinical studies involving our products, our reputation and our 
stock price.  

We may experience a negative impact on our business from newspaper articles or other media reports relating to, among other 

things, our compliance with FDA regulations for medical device reporting and concerns over disclosure of financial relationships 
between us and certain of our consultants who are involved with clinical studies and the publication of articles concerning our 
products. We believe that such publicity would potentially have a negative impact on our clinical studies, business, results of 
operations and financial condition or cause other adverse effects, including a decline in the price of our stock.  

14 

We may be subject to fines, penalties, injunctions and other sanctions if we are deemed to be promoting the use of our 
products for unapproved, or off-label, uses.  

Our business and future growth depend on the continued use of our products for the treatment of Afib or prevention of stroke. 
Unless the products are approved or cleared by FDA specifically for the treatment of Afib or prevention of stroke, we may not make 
claims about the safety or effectiveness of our products for such uses.  

These limitations present a material risk that FDA or other federal or state law enforcement authorities could determine that the 

nature and scope of our sales, marketing and/or support activities, though designed to comply with all FDA requirements, constitute 
the promotion of our products for an unapproved use in violation of the FDCA. We also face the risk that the FDA or other 
governmental authorities might pursue enforcement based on past activities that we have discontinued or changed, including sales 
activities, arrangements with institutions and doctors, educational and training programs and other activities. Investigations concerning 
the promotion of unapproved uses and related issues, are typically expensive, disruptive and burdensome and generate negative 
publicity. If our promotional activities are found to be in violation of the law, we may face significant fines and penalties and may be 
required to substantially change our sales, promotion, grant and educational activities. There is also a possibility that we could be 
enjoined from selling some or all of our products for any unapproved use. In addition, as a result of an enforcement action against us 
or our executive officers, we could be excluded from participation in government healthcare programs such as Medicare and 
Medicaid.  

The use of products we sell may result in injuries or other adverse events that lead to product liability suits, which could be 
costly to our business or our customers’ businesses.  

The use of products we sell may result in a variety of serious complications, including damage to the heart, internal bleeding, 

death or other adverse events, potentially leading to product liability claims. Serious complications are commonly encountered in 
connection with surgical procedures. If products we sell are defectively designed, manufactured or labeled, contain inadequate 
warnings, contain defective components, are misused or are associated with serious injuries or deaths, we may become subject to 
costly litigation by our customers or their patients. We carry product liability insurance that is limited in scope and amount and may 
not be adequate to fully protect us against product liability claims. We could be required to pay damages that exceed our insurance 
coverage. Any product liability claim, with or without merit, could result in an increase in our product insurance rates or our inability 
to secure coverage on reasonable terms, if at all. Even in the absence of a claim, our insurance rates may rise in the future. Any 
product liability claim, even a meritless or unsuccessful one, would be time-consuming and expensive to defend and could result in the 
diversion of our management’s attention from our business and result in adverse publicity, withdrawal of clinical trial participants, 
injury to our reputation and loss of revenue. Any of these events could negatively affect our earnings and financial condition.  

Our intellectual property rights may not provide meaningful commercial protection for our products, which could enable 
third parties to use our technology or methods, or very similar technology or methods, and could reduce our ability to 
compete.  

Our success depends significantly on our ability to protect our proprietary rights to the technologies used in our products. We 

rely on patent protection, as well as a combination of copyright, trade secret and trademark laws and nondisclosure, confidentiality and 
other contractual restrictions to protect our proprietary technology. However, these legal means afford only limited protection and may 
not adequately protect our rights or permit us to gain or keep any competitive advantage. Our patent applications may not issue as 
patents at all or in a form that will be advantageous to us. Our issued patents and those that may be issued in the future may be 
challenged, invalidated or circumvented, which could limit our ability to stop competitors from marketing related products. Although 
we have taken steps to protect our intellectual property and proprietary technology, we cannot assure you that third parties will not be 
able to design around our patents or, if they do infringe upon our technology, that we will be successful in or will have sufficient 
resources to pursue a claim of infringement against those third parties. We believe that third parties may have developed or are 
developing products that could infringe upon our patent rights. Any pursuit of an infringement claim by us may involve substantial 
expense or diversion of management attention. In addition, although we have generally entered into confidentiality agreements and 
intellectual property assignment agreements with our employees, consultants, investigators and advisors, such agreements may be 
breached, may not be enforceable or may not provide meaningful protection for our trade secrets or other proprietary information in 
the event of unauthorized use or disclosure or other breaches of the agreements. Additionally, as is common in the medical device 
industry, some of these individuals were previously employed at other medical equipment or biotechnology companies, including our 
competitors. Although no claims are currently pending against us, we may be subject to claims that these individuals or we have 
inadvertently or otherwise used or disclosed trade secrets or other proprietary information of their former employers.  

Furthermore, the laws of foreign countries may not protect our intellectual property rights to the same extent as the laws of the 

United States. Foreign countries generally do not allow patents to cover methods for performing surgical procedures. If our intellectual 
property does not provide significant protection against foreign or domestic competition, our competitors could compete more directly 
with us, which could result in a decrease in our market share. All of these factors may harm our competitive position.  

15 

The medical device industry is characterized by extensive litigation and administrative proceedings over patent and other 
intellectual property rights and any litigation or claim against us may cause us to incur substantial costs, could place a 
significant strain on our financial resources, divert the attention of management from our business and harm our reputation.  

Despite measures taken to protect our intellectual property, unauthorized parties might copy aspects of our products or obtain 

and use information that we regard as proprietary. Whether a product infringes a patent involves complex legal and factual issues, the 
determination of which is often uncertain. Any patent dispute, even one without merit or an unsuccessful one, would be time-
consuming and expensive to defend and could result in the diversion of our management’s attention from our business and result in 
adverse publicity, the disruption of development and marketing efforts, injury to our reputation and loss of revenue. Litigation also 
puts our patent applications at risk of being rejected and our patents at risk of being invalidated or interpreted narrowly, and may 
provoke third parties to assert claims against us. Any of these events could negatively affect our earnings and financial condition.  

In the event of a patent dispute, if a third party’s patents were upheld as valid and enforceable and we were found to be 
infringing, or found to be inducing infringement by others, we could be prevented from selling our products unless we were able to 
obtain a license to use technology or ideas covered by such patent or are able to redesign our system to avoid infringement, or we may 
be ordered to pay substantial damages to the patent holders. A license may not be available at all or on terms acceptable to us, and we 
may not be able to redesign our products to avoid any infringement. Modification of our products or development of new products 
could require us to conduct additional clinical trials and to revise our filings with the FDA and other regulatory bodies, which would 
be time-consuming and expensive. If we are not successful in obtaining a license or redesigning our products, we may be unable to 
sell our products and our business could suffer.  

The increase in cost of medical malpractice premiums to doctors and hospitals or the lack of malpractice insurance coverage 
due to the use of our products by doctors for an off-label indication may cause certain doctors or hospitals to decide not to use 
our products and may damage our ability to grow and maintain the market for our products.  

Insurance carriers have been raising premiums charged for medical malpractice insurance due, at least in part, to increased risks 

associated with off-label procedures, including higher damage awards for successful plaintiffs. Insurance carriers may continue to 
raise premiums or they may deny malpractice coverage for procedures performed using products such as ours on an off-label basis. If 
this trend continues or worsens, our revenue may fall as doctors or hospitals decide against purchasing our products due to the cost or 
unavailability of insurance coverage.  

We have a history of net losses and we may never become profitable.  

We have incurred net losses each year since our inception, including, most recently, net losses of $26,892 in 2017, $33,338 in 

2016 and $27,212 in 2015. As of December 31, 2017, we had an accumulated deficit of $225,866.  

Our net losses have resulted principally from costs and expenses relating to sales, training and promotional efforts, research and 
development, seeking regulatory clearances and approvals and general operating expenses. We expect to continue to incur substantial 
expenditures and to potentially incur additional operating losses in the future as we further develop and commercialize our products, 
including completing clinical trials and seeking regulatory clearances and approvals. If sales of our products do not continue to grow 
as we anticipate, we will not be able to achieve profitability. Our expansion efforts may prove to be more expensive than we currently 
anticipate, and we may not succeed in increasing our revenue sufficiently to offset these higher expenses. Our losses have had, and are 
expected to continue to have, an adverse impact on our working capital, total assets and accumulated deficit.  

Our capital needs after the next twelve months are uncertain and we may need to raise additional funds in the future and such 
funds may not be available on acceptable terms, if at all.  

We believe that our current cash, cash equivalents and investments, along with the cash we expect to generate or use for 
operations or access via our term loan and revolving line of credit will be sufficient to meet our projected capital requirements for at 
least the next 12 months. Our Loan and Security Agreement with Silicon Valley Bank (SVB), as amended and restated effective 
February 23, 2018, provides for a $40,000 term loan and $20,000 revolving line of credit, with an option to increase the revolving line 
of credit by an additional $20,000. The term loan and revolving credit facility both mature in February 2023. According to the Loan 
and Security Agreement, principal payments on the term loan are to be made ratably commencing eighteen months after the inception 
of the loan through the loan’s maturity date. If we meet certain conditions, as specified by the agreement, the commencement of term 
loan principal payments may be deferred by an additional six months. The term loan accrues interest at the greater of the Prime Rate 
plus 3.75% or 8.25% and is subject to an additional 3.50% fee on the original $40,000 term loan principal amount at maturity. 
Borrowing availability under the revolving credit facility is based on the lesser of $20,000 or a borrowing base calculation as defined 
by the Loan and Security Agreement. The applicable borrowing rate on advances outstanding under the revolving credit facility is the 
greater of the Prime Rate and 4.50%. The Loan and Security Agreement also provides for certain prepayment and early termination 
fees, as well as establishes a covenant related to sales growth and includes other customary terms and conditions. As of December 31, 
2017, we had no borrowings under the revolving credit facility, and we had borrowing availability of $15,000.  

The nContact acquisition provided for contingent consideration to be paid upon attaining specified regulatory approvals and 

clinical and revenue milestones over the next three years. Subject to the terms and conditions of the nContact merger agreement, such 
contingent consideration is paid in AtriCure common stock and cash, with a requirement to make payments in AtriCure common stock 

16 

first, up to a specified maximum number of shares. Over the next twelve months, we do not expect our cash requirements to include 
significant payments of contingent consideration based on terms of the acquisition agreement and related milestones. However, we do 
expect to issue shares in the amount of $7,500 as payment of contingent consideration related to the completion of the trial enrollment 
milestone in 2018. Significant changes to the estimated consideration to be paid could result in a substantial increase in liabilities for 
contingent consideration and our accumulated deficit, and reduce our net income or increase our net loss for the year in which the 
changes occur, which could contribute to difficulty in raising additional funds. The issuance of our stock to nContact shareholders to 
settle contingent consideration obligations would dilute the holdings of our existing stockholders.  

We believe we have adhered to the nContact contract provisions that provide for contingent consideration if the conditions 
described above are met. It is possible that nContact representatives may dispute our adherence to the contract and pursue a claim for 
non-adherence which could involve complex legal and factual issues, the determination of which is often uncertain. Any such claim, 
even one without merit or an unsuccessful one, would be time-consuming and expensive to defend and could result in the diversion of 
our management’s attention from our business and result in adverse publicity, the disruption of development and marketing efforts, 
injury to our reputation and loss of revenue. 

If we need to raise additional funds, we cannot be certain that such funds will be available to us on acceptable terms, if at all. 

Furthermore, if we issue equity securities to raise additional funds, our existing stockholders will experience dilution, and if we issue 
equity or debt securities, such securities may have rights, preferences and privileges senior to those of our existing stockholders. In 
addition, if we raise additional funds through collaboration, licensing or other similar arrangements, it may be necessary to relinquish 
potentially valuable rights to our future products or proprietary technologies, or grant licenses on terms that are not favorable to us. If 
we cannot raise funds on acceptable terms, we may not be able to expand our operations, develop new products, take advantage of 
future opportunities or respond to competitive pressures or unanticipated customer requirements.  

We may be unable to comply with the covenants of our Loan Agreement. 

Our Loan Agreement with SVB contains a covenant related to sales growth and other customary terms and conditions. The 

occurrence of an event of default could result in an increase to the applicable interest rate by 3.0%, an acceleration of all obligations, 
an obligation to repay all obligations in full and a right by SVB to exercise all remedies available to them. If we are unable to pay 
those amounts, SVB could proceed against the collateral granted to it pursuant to the Loan Agreement, and we may in turn lose access 
to our current source of borrowing availability. 

Our federal tax net operating loss (NOL) and general business credit carryforwards generated or acquired may expire or will 
be limited because we experienced an ownership change of more than 50 percent, which could result in greater future income 
tax expense and adversely impact future cash flows. 

On June 30, 2001, we experienced an ownership change as defined by Section 382 of the Internal Revenue Code of 1986. 
Section 382 imposes limitations (Section 382 limitation) on a company’s ability to use net operating loss and general business credit 
carryforwards if a company experiences a more-than-50-percent ownership change over a three-year testing period. Additionally, in 
connection with acquisitions, additional acquired NOLs are also subject to Section 382 limitation. The Section 382 limitations could 
limit the availability of our net operating loss and general business credit carryforwards to offset any future taxable income, which 
may increase our future income tax expense and adversely impact future cash flows. Net operating losses generated prior to 2018 are 
also subject to expiration under current IRS regulations. We have total federal income tax net operating loss and research and 
development credit carryforwards that, if not used to reduce our taxable income, will begin to expire in 2021. We have generated or 
acquired available net operating loss and research and development credit carryforwards of $240,286 and $6,392.  

We rely upon single and limited source third-party suppliers and third-party logistics providers, making us vulnerable to 
supply problems and price fluctuations which could harm our business.  

We rely on single and limited source third-party vendors for the manufacture of components used in our products. For example, 

we rely on one vendor to manufacture several of our RF generators, as well as separate vendors to manufacture our COBRA Fusion 
Surgical Ablation Systems, EPi-Sense Guided Coagulation System with VisiTrax technology, nContact RF generator and ORLab™ 
System. It would be a time consuming and lengthy process to secure these products from an alternative supplier. In addition, in some 
cases there are relatively few alternative sources of supply for certain other components that are critical to our products. We also rely 
on a third party to handle our warehousing and logistics functions for European and Middle Eastern markets on our behalf. 

Our reliance on outside manufacturers and suppliers also subjects us to risks that could harm our business, including:  

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

we may not be able to obtain adequate supply in a timely manner or on commercially reasonable terms;  

we may have difficulty timely locating and qualifying alternative suppliers;  

switching components may require product redesign and new submissions to FDA which could significantly delay 
production or, if FDA refuses to approve the changes, completely eliminate our ability to manufacture or sell our 
products;  

our suppliers manufacture products for a range of customers, and fluctuations in demand for the products those suppliers 
manufacture for others may affect their ability to deliver components to us in a timely manner; and  

17 

(cid:2) 

our suppliers may encounter financial hardships unrelated to our demand for components, which could inhibit their ability 
to fulfill our orders and meet our requirements.  

Identifying and qualifying additional or replacement suppliers for any of the components used in our products or a replacement 
warehousing and logistics provider, if required, may not be accomplished quickly and could involve significant additional costs. Any 
interruption or delay in the supply of components, materials or warehousing and logistics, or our inability to obtain components or 
materials from alternate sources at acceptable prices in a timely manner, could impair our ability to meet the demand of our customers 
and cause them to cancel orders or switch to competitive products and could therefore have a material adverse effect on our business, 
financial condition and results of operations. 

If our goodwill or other intangible assets become impaired, it could materially reduce the value of our assets and increase our 
net loss for the year in which the impairment occurs.  

As of December 31, 2017, we had $105,257 in goodwill related to acquisitions, which represents the purchase price we paid in 

excess of the fair value of the net assets we acquired. The Financial Accounting Standards Board’s (FASB) Accounting Standards 
Codification (ASC) 350, “Goodwill and Other Intangible Assets” requires that goodwill be tested for impairment at least annually 
(absent any impairment indicators). The testing includes comparing the fair value of each reporting unit with its carrying value. We 
estimate fair value using several valuation methods, including discounted cash flows, market multiples and market capitalization. 
Impairment adjustments, if any, are required to be recognized as operating expenses. We may have future impairment adjustments to 
our recorded goodwill. Any finding that the value of our goodwill has been impaired would require us to record an impairment charge 
which could materially reduce the value of our assets and reduce our net income or increase our net loss for the year in which the write 
off occurs and increase our accumulated deficit, which could contribute to difficulty in raising additional funds.  

In Process Research and Development (IPR&D) valued at $44,021 was recorded as an intangible asset in connection with the 

nContact acquisition. If we do not obtain the regulatory approvals that would confirm the technological feasibility of the IPR&D 
project, or if the IPR&D project is abandoned for any other reason, we would have an impairment adjustment to this asset that would 
require us to write it off. Additionally, and similar to goodwill, if the IPR&D asset is deemed to be impaired (as a result of the 
estimated fair value being less than carrying value), we would be required to write off the impaired portion of the IPR&D asset. This 
would materially reduce the value of our assets and reduce our net income or increase our net loss for the year in which the write off 
occurs and increase our accumulated deficit, which could contribute to difficulty in raising additional funds.  

An inability to forecast future revenue or estimate life cycles of products may result in inventory-related charges that would 
negatively affect our gross margins and results of operations.  

To mitigate the risk of supply interruptions, we may choose to maintain excess inventory of our products or component parts. 
Managing our inventory levels is important to our cash position and results of operations and is challenging in the current economic 
environment. As we grow and expand our product offerings, managing our inventory levels becomes more difficult, particularly as we 
expand into new product areas and bring product enhancements to market. While we rely on our personnel and information 
technology systems for inventory management to effectively manage accounting and financial functions, our personnel and 
information technology systems may fail to adequately perform these functions or may experience an interruption. An excessive 
amount of inventory reduces our cash available for operations and may result in excess or obsolete materials. Conversely, inadequate 
inventory levels may make it difficult for us to meet customer product demand, resulting in decreased revenue. An inability to forecast 
future revenue or estimated life cycles of products may result in inventory-related charges that would negatively affect our gross 
margins and results of operations and increase our accumulated deficit, any of which could contribute to difficulty in raising additional 
funds. 

If we or our third-party vendors fail to comply with extensive FDA regulations relating to the manufacturing of our products 
or any component part, we may be subject to fines, injunctions and penalties, and our ability to commercially distribute and 
sell our products may be hurt.  

Our manufacturing facility and the manufacturing facility of any of our third-party component manufacturers, critical suppliers 

or third-party sterilization facility are required to comply with FDA’s Quality System Regulation (QSR) which sets forth minimum 
standards for the procedures, execution and documentation of the design, testing, production, control, quality assurance, labeling, 
packaging, sterilization, storage and shipping of the products we sell. FDA may evaluate our compliance with the QSR, among other 
ways, through periodic announced or unannounced inspections which could disrupt our operations and interrupt our manufacturing. If 
in conducting an inspection of our manufacturing facility or the manufacturing facility of any of our third-party component 
manufacturers, critical suppliers or third-party sterilization facility, an FDA investigator observes conditions or practices believed to 
violate the QSR, the investigator may document their observations on a Form FDA-483 that is issued at the conclusion of the 
inspection. A manufacturer that receives an FDA-483 may respond in writing and explain any corrective actions taken in response to 
the inspectional observations. FDA will typically review the facility’s written response and may re-inspect to determine the facility’s 
compliance with the QSR and other applicable regulatory requirements. Failure to take adequate and timely corrective actions to 
remedy objectionable conditions listed on an FDA-483 could result in FDA taking administrative or enforcement actions. Among 
these may be FDA’s issuance of a Warning Letter to a manufacturer, which informs it that FDA considers the observed violations to 
be of “regulatory significance” that, if not corrected, could result in further enforcement action. FDA enforcement actions, which 

18 

include seizure, injunction and criminal prosecution, could result in total or partial suspension of a facility’s production and/or 
distribution, product recalls, fines, suspension of FDA’s review of product applications and FDA’s issuance of adverse publicity. 
Thus, an adverse inspection could force a shutdown of our manufacturing operations or a recall of our products. Adverse inspections 
could also delay FDA approval of our products and could have an adverse effect on our production, sales and profitability.  

We and any of our third-party vendors may also encounter other problems during manufacturing including failure to follow 

specific protocols and procedures, equipment malfunction and environmental factors, any of which could delay or impede our ability 
to meet demand. The manufacture of our product also subjects us to risks that could harm our business, including problems relating to 
the sterilization of our products or facilities and errors in manufacturing components that could negatively affect the efficacy or safety 
of our products or cause delays in shipment of our products. Any interruption or delay in the manufacture of the product or any of its 
components could impair our ability to meet the demand of our customers and cause them to cancel orders or switch to competitive 
products and could, therefore, have a material adverse effect on our business, financial condition and results of operations.  

If we fail to comply with the extensive FDA regulations relating to our business, we may be subject to fines, injunctions and 
penalties, and our ability to commercially distribute and promote our products may be hurt.  

Our products are classified by FDA as medical devices and, as such, are subject to extensive regulation in the United States by 
FDA and numerous other federal, state and foreign governmental authorities. FDA regulations, guidance, notices and other issuances 
specific to medical devices are broad and regulate numerous aspects of our business.  

Compliance with FDA, state and other regulations can be complex, expensive and time-consuming. FDA and other authorities 

have broad enforcement powers. Furthermore, changes in the applicable governmental regulations could prevent further 
commercialization of our products and technologies and could materially harm our business.  

If a serious failure to comply with applicable regulatory requirements was determined, it could result in enforcement action by 

FDA or other state or federal agencies, including the DOJ, which may include any of the following sanctions, among others:  

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

warning letters, fines, injunctions, consent decrees and civil penalties;  

repair, replacement, refunds, recall or seizure of our products;  

operating restrictions, partial suspension or total shutdown of production;  

suspension or termination of our clinical trials; 

refusing or delaying our pending requests for 510(k) clearance or PMAs, new intended uses or modifications to existing 
products;  

withdrawing 510(k) clearance or PMAs that have already been granted; and  

criminal prosecution.  

If any of these events were to occur, we could lose customers and our production, product sales, business, results of operations 

and financial condition would be harmed.  

We are also subject to medical device reporting regulations that require us to file reports with FDA if our products may have 
caused or contributed to a death or serious injury or, in the event of product malfunction, that if such malfunction were to recur, would 
likely cause or contribute to a death or serious injury. There have been incidents, including patient deaths, which have occurred during 
or following procedures using our products that we have not, and believe were not required to be, reported to FDA because we 
determined that our products did not cause or contribute to the outcomes in these incidents. If FDA disagrees with us, however, and 
determines that we should have submitted reports for these adverse events, we could be subject to significant regulatory fines or other 
penalties. In addition, the number of medical device reports we make, or the magnitude of the problems reported, could cause FDA or 
us to terminate or modify our clinical trials or recall or cease the sale of our products, and could hurt commercial acceptance of our 
products and harm our reputation with customers.  

Modifications to our products may require new clearances or approvals or may require us to cease promoting or to recall the 
modified products until such clearances or approvals are obtained and FDA may not agree with our conclusions regarding 
whether new clearances or approvals were required. 

Any modification to a 510(k)-cleared device that would constitute a change in its intended use, design or manufacture could 

require a new or supplemental 510(k) clearance or, possibly, submission and FDA approval of a PMA. FDA requires every medical 
device company to make the determination as to whether a 510(k) must be filed, but FDA may review any medical device company’s 
decision. We have made modifications to our products and concluded that such modifications did not require us to submit a 510(k). 
FDA may not agree with our decisions regarding whether submissions were required.  

If FDA were to disagree with us and require us to submit a 510(k), PMA or a PMA supplement for then-existing modifications, 
we could be required to cease promoting or to recall the modified product until we obtain clearance or approval. In addition, we could 
be subject to significant regulatory fines or other penalties. Furthermore, our products could be subject to recall if FDA determines, for 
any reason, that our products are not safe or effective or that appropriate regulatory submissions were not made. Delays in receipt or 

19 

failure to receive clearances or approvals, the loss of previously received clearances or approvals or the failure to comply with existing 
or future regulatory requirements could reduce our sales, profitability and future growth prospects.  

We spend considerable time and money complying with federal, state and foreign regulations in addition to FDA regulations, 
and, if we are unable to fully comply with such regulations, we could face substantial penalties.  

We are subject to extensive regulation by the federal government and foreign countries in which we conduct business. The laws 

that affect our ability to operate our business in addition to the FDCA and FDA regulations include, but are not limited to, the 
following:  

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

state consumer protection, fraud and business practice laws;  

the Federal Anti-Kickback Statute, which prohibits persons from knowingly and willfully soliciting, offering, receiving or 
providing remuneration, directly or indirectly, in cash or in kind, to induce either the referral of an individual, or 
furnishing or arranging for a good or service, for which payment may be made under federal healthcare programs such as 
the Medicare and Medicaid Programs;  

the Federal False Claims Act, which prohibits submitting a false claim or causing of the submission of a false claim to the 
government;  

Medicare laws and regulations that prescribe the requirements for coverage and payment, including the amount of such 
payment, and laws prohibiting false claims for reimbursement under Medicare and Medicaid;  

state laws that prohibit the practice of medicine by non-doctors and by doctors not licensed in a particular state, and fee-
splitting arrangements between doctors and non-doctors, as well as state law equivalents to the Anti-Kickback Statute and 
the Stark Law, which may not be limited to government-reimbursed items;  

federal and state healthcare fraud and abuse laws or laws protecting the privacy of patient medical information, including 
the Health Insurance Portability and Accountability Act (HIPAA) which protects medical records and other personal 
health information by limiting their use and disclosure, giving individuals the right to access, amend and seek accounting 
reasonably necessary to accomplish the intended purpose;  

the Federal Trade Commission Act and similar laws regulating advertising and consumer protection; and  

similar and other regulations outside the United States.  

Healthcare fraud and abuse regulations are complex, and even minor, inadvertent irregularities can potentially give rise to 

claims that a law has been violated. Any violations of these laws could result in a material adverse effect on our business, financial 
condition and results of operations. For example, if we were found to be in violation of the Federal False Claims Act, we would likely 
face significant fines and penalties and would likely be required to change substantially our sales, promotion, grant and educational 
activities. There is also a possibility that we could face an injunction that would prohibit in whole or in part our current business 
activities, and, as a result of enforcement actions against us or our senior officers, we could be excluded from participation in 
government healthcare programs such as Medicare and Medicaid. If there is a change in law, regulation or administrative or judicial 
interpretations, we may have to change our business practices or our existing business practices could be challenged as unlawful, 
which could have a material adverse effect on our business, financial condition and results of operations.  

If our past or present operations are found to be in violation of any of the laws described above or the other governmental 
regulations to which we, our distributors or our customers are subject, we may be subject to the applicable penalty associated with the 
violation, including civil and criminal penalties, damages, fines, exclusion from Medicare, Medicaid and other government programs 
and the curtailment or restructuring of our operations. If we are required to obtain permits or licensure under these laws that we do not 
already possess, we may become subject to substantial additional regulation or incur significant expense. Any penalties, damages, 
fines, curtailment or restructuring of our operations would adversely affect our ability to operate our business and our financial results. 
The risk of our being found in violation of these laws is increased by the fact that many of them have not been fully or clearly 
interpreted by the regulatory authorities or the courts, and their provisions are subject to a variety of interpretations and additional 
legal or regulatory change. Any action against us for violation of these laws, even if we successfully defend against it, could cause us 
to incur significant legal expenses, divert our management’s attention from the operation of our business and damage our reputation.  

Adverse changes in payors’ policies toward coverage and reimbursement for surgical procedures would harm our ability to 
promote and sell our products.  

Third-party payors are increasingly exerting pressure on medical device companies to reduce their prices. Even to the extent that 
the use of our products is reimbursed by private payors and governmental payors, adverse changes in payors’ policies toward coverage 
and reimbursement for surgical procedures would also harm our ability to promote and sell our products. Payors continue to review 
their policies and can, without notice, deny coverage for treatments that include the use of our products. Because each third-party 
payor individually approves coverage and reimbursement, obtaining these approvals may be time-consuming and costly. In addition, 
third-party payors may require us to provide scientific and clinical support for the use of our products. Adverse changes in coverage 
and reimbursement for surgical procedures could harm our business and reduce our revenue.  

20 

FDA does not regulate the practice of medicine. Physicians may use our products in circumstances where they deem it 
medically appropriate, such as for the treatment of Afib or the reduction in stroke risk, even though FDA may not have approved or 
cleared our products to be marketed specifically for those indications. Some payors may deem the use of our products for indications 
not specifically approved or cleared by FDA to be experimental and, as such, may deny coverage or payment. Often times, these 
denials can be overcome through an appeals process, but there is no guarantee of success in these cases. 

We have traditionally had limited long-term clinical data regarding the safety and efficacy of our products. Any long-term 
data that is generated may not be positive or consistent with our limited short-term data, which would affect the rate at which 
our products are adopted by the medical community.  

Important factors upon which the efficacy of our products will be measured include long-term data on the number of patients 

that experience Afib or stroke following treatment with our products and the number of patients that have serious complications 
resulting from ablations or LAA occlusion using our products. While we believe we are now well-positioned to provide sufficient 
long-term data regarding the safety and efficacy of our products, such data could identify unexpected safety issues. We cannot provide 
any assurance that the data collected during our clinical trials will be compelling to the medical community because it may not be 
scientifically meaningful and may not demonstrate that procedures utilizing our products are an attractive option when compared 
against data from alternative procedures and products. Negative long-term data would affect the use of our products and harm our 
business and prospects.  

Fluctuations in foreign currency exchange rates could result in declines in our reported sales and results of operations.  

Because some of our international sales are denominated in local currencies and not in U.S. Dollars, our reported sales and 

earnings are subject to fluctuations in foreign currency exchange rates, primarily the Euro and British Pound. We translate results of 
transactions denominated in local currencies into U.S. Dollars using market conversion rates applicable to the period in which the 
transaction is reported. As a result, changes in exchange rates during a period can unpredictably and adversely affect our consolidated 
operating results and our asset and liability balances, even if the underlying value of the item in its original currency has not changed. 
At present, we do not hedge our exposure to foreign currency fluctuations. As a result, sales and expenses occurring in the future that 
are denominated in foreign currencies may be translated into U.S. Dollars at less favorable rates, resulting in reduced revenues and 
earnings. 

Our manufacturing operations are primarily conducted at a single location, and any disruption at our manufacturing facility 
could increase our expenses and decrease our revenue. 

Our manufacturing operations are conducted at a single location in Ohio. While we take precautions at this location, we do not 
maintain a backup manufacturing facility, making us dependent on our current facility for the continued operation of our business. A 
natural or other disaster could damage or destroy our manufacturing equipment and cause substantial delays in our manufacturing 
operations, which could lead to additional expense and decreased revenue due to lack of supply. The insurance we maintain may not 
be adequate to cover our losses in any particular case. With or without insurance, damage to our facility or our other property due to a 
natural disaster or casualty event could have a material adverse effect on our business, financial condition and results of operations. 

We rely on independent distributors to market and sell our products in certain markets outside of the United States, and a 
failure of our independent distributors to successfully market our products or any disruption in their ability to do so may 
adversely impact our sales.  

We depend on third-party distributors to sell our products in certain markets outside of the United States, and if these 
distributors do not perform, we may be unable to maintain or increase our level of international revenue. Over the long term, we 
intend to continue to grow our business outside of the United States. To do so we will need to attract additional distributors or hire 
direct sales personnel to expand the territories in which we sell our products. Independent distributors may terminate their relationship 
with us or devote insufficient sales efforts to our products. We are not able to control our independent distributors, and they may not 
be successful in implementing our marketing plans. In addition, many of our independent distributors outside of the United States 
initially obtain and maintain foreign regulatory approval for sale of our products in their respective countries. Our failure to maintain 
our relationships with our independent distributors outside of the United States, or our failure to recruit and retain additional skilled 
independent distributors in these locations, could have an adverse effect on our operations. Turnover among our independent 
distributors, even if replaced, may adversely affect our short-term financial results while we transition to new independent distributors 
or direct sales personnel. Fluctuations in foreign currency exchange rates including any strengthening of the U.S. dollar may cause our 
independent sales distributors to seek longer payment terms to offset the higher prices they are paying in local currency for our 
products. The ability of these third-party distributors to market and sell our products could also be adversely affected by unexpected 
events, including, but not limited to, power failures, nuclear events, natural or other disasters and war or terrorist activities. In 
addition, in light of the worldwide economic crisis, the ability of our distributors to borrow money from their existing lenders or to 
obtain credit from other sources to purchase our products may be impaired or our distributors could experience a significant change in 
their liquidity or financial condition, all of which could impair their ability to distribute our products and eventually lead to distributor 
turnover.  

21 

If coverage and adequate levels of reimbursement from governmental and third-party payors outside of the United States are 
not obtained and maintained, sales of our products outside of the United States may decrease and we may fail to achieve or 
maintain significant sales outside of the United States.  

Our revenue generated from sales outside of the United States is also dependent upon the availability of coverage and 
reimbursement within prevailing foreign healthcare payment systems. Foreign healthcare payors generally do not provide the same 
level of reimbursement for sole-therapy minimally invasive procedures utilizing ablation devices and related products as payors in the 
United States. In addition, healthcare cost containment efforts similar to those we face in the United States are prevalent in many of 
the other countries in which we sell our products, and these efforts are expected to continue. To the extent that the use of ablation 
devices such as our Isolator Synergy system has historically received reimbursement under a foreign healthcare payment system, such 
reimbursement, if any, has typically been significantly less than the reimbursement provided in the United States. If coverage and 
adequate levels of reimbursement from governmental and third-party payors outside of the United States are not obtained and 
maintained, sales of our products outside of the United States may decrease and we may fail to achieve or maintain significant sales 
outside of the United States.  

If we fail to properly manage our anticipated growth, our business could suffer.  

We may experience periods of rapid growth and expansion, which could place a significant strain on our personnel, information 
technology systems and other resources. In particular, the increase in our direct sales force requires significant management and other 
supporting resources. Any failure by us to manage our growth effectively could have an adverse effect on our ability to achieve our 
development and commercialization goals. 

To achieve our revenue goals, we must successfully increase production output as required by customer demand. In the future, 

we may experience difficulties in increasing production, including problems with production yields and quality control, component 
supply and shortages of qualified personnel. These problems could result in delays in product availability and increases in expenses. 
Any such delay or increased expense could adversely affect our ability to generate revenues. 

Future growth will also impose significant added responsibilities on management, including the need to identify, recruit, train 

and integrate additional employees. In addition, rapid and significant growth will place a strain on our administrative and operational 
infrastructure.  

In order to manage our operations and growth, we will need to continue to improve our operational and management controls, 

reporting and information technology systems and financial internal control procedures. If we are unable to manage our growth 
effectively, it may be difficult for us to execute our business strategy and our operating results and business could suffer. 

We depend on our officers and other skilled and experienced personnel to operate our business effectively. If we are not able 
to retain our current employees or recruit additional qualified personnel, our business will suffer and our future revenue and 
profitability will be impaired.  

We are highly dependent on the skills and experience of our President and Chief Executive Officer, Michael H. Carrel, and 

certain other officers and key employees. We do not have any insurance in the event of the death or disability of our key personnel. 
Our officers and key employees, with the exception of our President and Chief Executive Officer and Senior Vice President, 
Operations, do not have employment agreements and they may terminate their employment and work elsewhere without notice and 
without cause or good reason. Currently we have non-compete agreements with our officers and other employees. Due to the 
specialized knowledge of each of our officers with respect to our products and our operations and the limited pool of people with 
relevant experience in the medical device field, the loss of service of one or more of these individuals could significantly affect our 
ability to operate and manage our business. The announcement of the loss of one or more of our key personnel could negatively affect 
our stock price.  

We depend on our scientific and technical personnel for successful product development and innovation, which are critical to 

the success of our business. In addition, to succeed in the implementation of our business strategy, our management team must rapidly 
execute our sales strategy, obtain expanded FDA clearances and approvals, achieve market acceptance for our products and further 
develop products, while managing anticipated growth by implementing effective planning, manufacturing and operating processes. 
Managing this growth will require us to attract and retain additional management and technical personnel. We rely primarily on direct 
sales employees to sell our products in the United States and failure to adequately train them in the use and benefits of our products 
will prevent us from achieving our market share and revenue growth goals. We have key relationships with physicians that involve 
procedure, product, market and clinical development. If any of these physicians end their relationship with us, our business could be 
negatively impacted. We cannot assure you that we will be able to attract and retain the personnel and physician relationships 
necessary to grow and expand our business and operations. If we fail to identify, attract, retain and motivate these highly skilled 
personnel and physicians, we may be unable to continue our development and sales activities.  

22 

Our business growth strategy involves the potential for significant acquisitions, which involve risks and difficulties in 
integrating potential acquisitions and may adversely affect our business, results of operations and financial condition.  

All acquisitions involve inherent uncertainties, which may include, among other things, our ability to:  

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

successfully identify targets for acquisition;  

negotiate reasonable terms;  

properly perform due diligence and determine all the significant risks associated with a particular acquisition;  

properly evaluate target company management capabilities; and  

successfully transition and integrate the acquired company into our business and achieve the desired performance. 

We may acquire businesses with unknown liabilities, contingent liabilities or internal control deficiencies. We have plans and 

procedures in place to conduct reviews of potential acquisition candidates for compliance with applicable regulations and laws prior to 
acquisition. Despite these efforts, realization of any of these liabilities or deficiencies may increase our expenses, adversely affect our 
financial position through the initiation, pendency or outcome of litigation or otherwise, or cause us to fail to meet our public financial 
reporting obligations.  

We have consummated two significant acquisitions in the past five years and in the future may continue to invest a substantial 

amount of capital in acquisitions. We continue to evaluate potential acquisition opportunities to support, strengthen and grow our 
business. There can be no assurance that we will be able to locate suitable acquisition candidates, acquire possible acquisition 
candidates, acquire such candidates on commercially reasonable terms, or integrate acquired businesses successfully in the future. In 
addition, any governmental review or investigation of our proposed acquisitions, such as by the Federal Trade Commission, may 
impede, limit or prevent us from proceeding with an acquisition. Future acquisitions may require us to incur additional debt and 
contingent liabilities, which may adversely affect our business, results of operations and financial condition. The process of integrating 
acquired businesses into our existing operations may result in operating, contract and supply chain difficulties, such as the failure to 
retain customers or management personnel. Such difficulties may divert significant financial, operational and managerial resources 
from our existing operations and make it more difficult to achieve our operating and strategic objectives.  

Disruptions of critical information systems or material breaches in the security of our systems could harm our business, 
customer relations and financial condition. 

In the ordinary course of our business, we collect and store sensitive data, including intellectual property, our proprietary 
business information and that of our customers, suppliers and business partners, and personally identifiable information of our 
customers and employees in our data centers and on our networks. The secure processing, maintenance and transmission of this 
information is critical to our operations and business strategy. Despite our security measures, our information technology and 
infrastructure may be vulnerable to attacks by hackers or breached due to employee error, malfeasance or other disruptions. Any such 
breach could compromise our networks and the information stored there could be accessed, publicly disclosed, lost or stolen. Any 
such access, disclosure or other loss of information could result in legal claims or proceedings, liability under laws that protect the 
privacy of personal information, regulatory penalties, disrupt our operations and the services we provide to customers, and damage our 
reputation and cause a loss of confidence in our products and services, which could adversely affect our business, operating margins, 
revenues and competitive position.  

We also rely in part on information technology to store information, interface with customers, maintain financial accuracy, 
secure our data and accurately produce our financial statements. If our information technology systems do not effectively and securely 
collect, store, process and report relevant data for the operation of our business, whether due to equipment malfunction or constraints, 
software deficiencies, human error or cyber incident, our ability to effectively plan, forecast and execute our business plan and comply 
with applicable laws and regulations would be materially impaired. Any such impairment could have a material adverse effect on our 
results of operations, financial condition and the timeliness with which we report our operating results. 

We are subject to credit risk from our accounts receivable related to our product sales, which include sales to countries 
outside the United States that may experience economic turmoil. 

The majority of our accounts receivable arise from product sales in the United States. However, we also have significant 
receivable balances from customers within the European Union, Asia and other regions. Our accounts receivable in the United States 
are primarily due from public and private hospitals. Our accounts receivable outside the United States are primarily due from public 
and private hospitals and from independent distributors. Our historical write-offs of accounts receivable have not been significant. We 
monitor the financial performance and credit worthiness of our customers so that we can properly assess and respond to changes in 
their credit profile. Our independent distributors and sub-dealers operate in certain countries where economic conditions continue to 
present challenges to their businesses, and, thus, could place in risk the amounts due to us from them. These distributors are owed 
amounts from public hospitals that are funded by their governments. Adverse financial conditions in these countries may negatively 
affect the length of time that it will take us to collect associated accounts receivable or impact the likelihood of ultimate collection. 

23 

Compliance with environmental laws and regulations may be expensive. Failure to comply with environmental laws and 
regulations could subject us to significant liability. 

Our manufacturing operations and research and development activities involve the use of biological materials and hazardous 

substances and are subject to a variety of federal, state and local environmental laws and regulations relating to the storage, use, 
discharge, disposal, remediation of and human exposure to hazardous substances. Our research and development and manufacturing 
operations may produce biological waste materials, such as animal tissues and certain chemical waste. These operations are permitted 
by regulatory authorities, and the resultant waste materials are disposed of in compliance with environmental laws and regulations. 
Compliance with these laws and regulations may be expensive, and non-compliance could result in substantial liabilities. In addition, 
we cannot completely eliminate the risk of accidental contamination or injury to third parties from the use, storage, handling or 
disposal of these materials. In the event of contamination or injury, we could be held liable for any resulting damages, and any liability 
could exceed any applicable insurance coverage we may have. Our manufacturing operations may result in the release, discharge, 
emission or disposal of hazardous substances that could cause us to incur substantial liabilities, including costs for investigation and 
remediation. We believe we are in compliance with such laws and regulations.  

The results of the United Kingdom’s referendum on withdrawal from the European Union may have a negative effect on 
global economic conditions, financial markets and our business.  

In June 2016, a majority of voters in the United Kingdom elected to withdraw from the European Union, or the EU, in a national 

referendum. The referendum was advisory, and the terms of any withdrawal are subject to a negotiation period that could last at least 
two years after the government of the United Kingdom formally initiates a withdrawal process. Nevertheless, the referendum has 
created significant uncertainty about the future relationship between the United Kingdom and the EU, including with respect to the 
laws and regulations that will apply as the United Kingdom determines which EU laws to replace or replicate in the event of a 
withdrawal. The referendum has also given rise to calls for the governments of other EU member states to consider withdrawal. These 
developments, or the perception that any of them could occur, have had and may continue to have a material adverse effect on global 
economic conditions and the stability of global financial markets, and may significantly reduce global market liquidity and restrict the 
ability of key market participants to operate in certain financial markets. Any of these factors could depress economic activity and 
restrict our access to capital, which could have a material adverse effect on our business, financial condition and results of operations 
and reduce the price of our common stock.  

Our effective income tax rate may fluctuate, which may adversely affect our operations, earnings and earnings per share.  

Our effective income tax rate is influenced by our projected profitability in the various taxing jurisdictions in which we operate. 

The global nature of our business increases our tax risks. In addition, revenue authorities in many of the jurisdictions in which we 
operate are known to have become more active in their tax collection activities. Changes in the distribution of profits and losses 
among taxing jurisdictions may have a significant impact on our effective income tax rate, which in turn could have an adverse effect 
on our net income and earnings per share. The application of tax laws in various taxing jurisdictions, including the United States, is 
subject to interpretation, and tax authorities in various jurisdictions may have diverging and sometimes conflicting interpretations of 
the application of tax laws. Changes in tax laws or tax rulings, in the United States or other tax jurisdictions in which we operate, 
could materially impact our effective tax rate.  

Factors that may affect our effective income tax rate include, but are not limited to:  

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

the requirement to exclude from our quarterly worldwide effective income tax calculations losses in jurisdictions where no 
income tax benefit can be recognized; 

actual and projected full year pre-tax income, including differences between actual and anticipated income before taxes in 
various jurisdictions; 

changes in tax laws, or in the interpretation or application of tax laws, in various taxing jurisdictions; 

changes in the relative mix and staffing levels in various tax jurisdictions; 

audits or other challenges by taxing authorities; and 

the establishment of valuation allowances against a portion or all of certain deferred income tax assets if we determined 
that it is more likely than not that future income tax benefits will not be realized. 

These changes may cause fluctuations in our effective income tax rate that could adversely affect our results of operations and 

cause fluctuations in our earnings and earnings per share.  

Governmental authorities may question our intercompany transfer pricing policies or change their laws in a manner that 
could increase our effective tax rate or otherwise harm our business.  

As a U.S. company doing business in international markets through subsidiaries, we are subject to foreign tax and intercompany 
pricing laws, including those relating to the flow of funds between the parent and subsidiaries. Tax authorities in the United States and 
in foreign markets closely monitor our corporate structure and how we account for intercompany fund transfers. If tax authorities 

24 

challenge our corporate structure, transfer pricing mechanisms or intercompany transfers, our operations may be negatively impacted 
and our effective tax rate may increase. Tax rates vary from country to country and if regulators determine that our profits in one 
jurisdiction should be increased, we might not be able to fully utilize all foreign tax credits that are generated, which would increase 
our effective tax rate. Additionally, the Organization for Economic Cooperation and Development, or OECD, has issued certain 
proposed guidelines regarding base erosion and profit sharing. Once these guidelines are formally adopted by the OECD, it is possible 
that separate taxing jurisdictions may also adopt some form of these guidelines. In such case, we may need to change our approach to 
intercompany transfer pricing in order to maintain compliance under the new rules. Our effective tax rate may increase or decrease 
depending on the current location of global operations at the time of the change. Finally, we might not always be in compliance with 
all applicable customs, exchange control, Value Added Tax and transfer pricing laws despite our efforts to be aware of and to comply 
with such laws. In such case, we may need to adjust our operating procedures and our business could be adversely affected.  

Due to the global nature of our business, we may be exposed to liabilities under the Foreign Corrupt Practices Act and various 
other anti-corruption laws, and any allegation or determination that we violated these laws could have a material adverse 
effect on our business.  

We are required to comply with the FCPA, UK Bribery Act of 2010 and other U.S. and foreign anti-corruption laws, which 

prohibit companies from engaging in bribery including corruptly or improperly offering, promising, or providing money or anything 
else of value to foreign officials and certain other recipients. In addition, the FCPA imposes certain books, records and accounting 
control obligations on public companies and other issuers. We operate in parts of the world in which corruption can be common and 
compliance with anti-bribery laws may conflict with local customs and practices. Our global operations face the risk of unauthorized 
payments or offers being made by employees, consultants, sales agents and other business partners outside of our control or without 
our authorization. It is our policy to implement safeguards (including mandatory training) to prohibit these practices by our employees 
and business partners with respect to our operations. However, irrespective of these safeguards, or as a result of monitoring 
compliance with such safeguards, it is possible that we or certain other parties may discover or receive information at some point that 
certain employees, consultants, sales agents, or other business partners may have engaged in corrupt conduct for which we might be 
held responsible. Violations of the FCPA or other foreign anti-corruption laws may result in restatements of, or irregularities in, our 
financial statements as well as severe criminal or civil sanctions, and we may be subject to other liabilities, which could negatively 
affect our business, operating results and financial condition. In some cases, companies that violate the FCPA may be debarred by the 
U.S. government and/or lose their U.S. export privileges. Changes in anti-corruption laws or enforcement priorities could also result in 
increased compliance requirements and related costs which could adversely affect our business, financial condition and results of 
operations. In addition, the U.S. or other governments may seek to hold us liable for successor liability FCPA violations or violations 
of other anti-corruption laws committed by companies in which we invest or that we acquired or will acquire.  

Our insurance may not cover all of our indemnification obligations and other liabilities associated with our operations.  

We maintain insurance designed to provide coverage for ordinary risks associated with our operations and our ordinary 
indemnification obligations, which we believe to be customary for our industry. The coverage provided by such insurance may not be 
adequate for all claims we may make or may be contested by our insurance carriers. If our insurance is not adequate or available to 
pay liabilities associated with our operations, or if we are unable to purchase adequate insurance at reasonable rates in the future, our 
business, financial condition, results of operations or cash flows may be materially adversely impacted. 

Risks Relating To Our Common Stock  

The price and trading volume of our common stock may experience extreme fluctuations and our stockholders could lose some 
or all of their investment.  

Because we operate within the medical device segment of the healthcare industry, our stock price is likely to be volatile. The 

market price of our common stock may have and has had a history of substantial fluctuation due to a variety of factors, including, but 
not limited to:  

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

variations in our quarterly financial and operating results; 

physician and patient acceptance of the surgical treatment of Afib or exclusion of the LAA using our products;  

adverse regulatory developments with respect to our products, such as recalls, new regulatory requirements, changes in 
regulatory requirements or guidance and timing of regulatory clearances and approvals for new products;  

coverage and reimbursement determinations for our products and the related procedures;  

the timing of orders received;  

delays or interruptions in manufacturing or shipping of our products;  

pricing of our products;  

media reports, publications or announcements about products or new innovations that could compete with our products or 
about the medical device product segment in general;  

25 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

investigations, claims or allegations by regulatory agencies, such as the Department of Justice and Financial Industry 
Regulatory Authority;  

market conditions or trends related to the medical device and healthcare industries or the market in general;  

additions to or departures of our key personnel;  

disputes, litigation or other developments relating to proprietary rights, including patents, and our ability to obtain patent 
protection for our technologies;  

changes in financial estimates, investors’ perceptions or recommendations by securities analysts;  

failure to achieve or maintain an effective healthcare compliance environment;  

changes in accounting principles; and  

failure to achieve and maintain an effective internal control environment.  

These factors, some of which are not within our control, may cause the price of our stock to fluctuate substantially. If our 
quarterly or annual operating results fail to meet or exceed the expectations of securities analysts or investors, our stock price could 
drop suddenly and significantly. We believe the quarterly and annual comparisons of our financial results are not necessarily 
meaningful and should not be relied upon as an indication of our future performance.  

The market prices of the securities of medical device companies, particularly companies like ours without consistent product 
revenue and earnings, have been highly volatile and are likely to remain highly volatile in the future. This volatility has often been 
unrelated to the operating performance of these particular companies. In the past, companies that experience volatility in the market 
price of their securities have often faced securities class action litigation. Whether or not meritorious, litigation brought against us 
could result in substantial costs, divert our management’s attention and resources and harm our ability to grow our business.  

We may be obligated to issue additional shares of our common stock to the former stockholders of nContact as a result of our 
satisfaction of certain milestones set forth in the merger agreement with nContact and the other parties thereto, resulting in 
stock ownership dilution. 

Under the terms of the merger agreement with nContact and the other parties thereto, we agreed to issue additional shares of our 
common stock, or make payments in cash, to the former stockholders of nContact as contingent consideration upon our satisfaction of 
milestones described in the merger agreement. Issuing additional shares of our common stock to the former stockholders of nContact 
in satisfaction of contingent consideration dilutes the ownership interests of holders of our common stock on the dates of such 
issuances. If we are unable to realize the strategic, operational and financial benefits anticipated from our acquisition of nContact, our 
stockholders may experience dilution of their ownership interests in our company upon any such future issuances of shares of our 
common stock without receiving any commensurate benefit. 

The sale of material amounts of common stock could encourage short sales by third parties and depress the price of our 
common stock. As a result, our stockholders may lose all or part of their investment. 

The downward pressure on our stock price caused by the sale of a significant number of shares of our common stock or the 
perception that such sales could occur by any of our significant stockholders could cause our stock price to decline, thus allowing 
short sellers of our stock an opportunity to take advantage of any decrease in the value of our stock. The presence of short sellers in 
our common stock may further depress the price of our common stock. 

Sales of common stock by us in a capital raising transaction may dilute stockholder ownership of common stock and cause a 
decline in the market price of our common stock.  

We may need to raise capital in the future to fund our operations or new initiatives or reduce or pay in full our indebtedness. If 

we raise funds by issuing equity securities, our stock price may decline and our existing stockholders may experience significant 
dilution. Furthermore, we may enter into capital raising transactions at prices that represent a substantial discount to market price. A 
negative reaction by investors and securities analysts to any sale of our equity securities could result in a decline in the trading price of 
our common stock.  

Anti-takeover provisions in our amended and restated certificate of incorporation and amended and restated bylaws and 
under Delaware law could inhibit a change in control or a change in management that stockholders consider favorable.  

Provisions in our certificate of incorporation and bylaws could delay or prevent a change of control or change in management 

that would provide a premium to the market price of common stock. These provisions include those:  

(cid:2) 

(cid:2) 

authorizing the issuance without further approval of “blank check” preferred stock that could be issued by our board of 
directors to increase the number of outstanding shares and thwart a takeover attempt;  

prohibiting cumulative voting in the election of directors, which would otherwise allow less than a majority of 
stockholders to elect director candidates;  

26 

(cid:2) 

(cid:2) 

(cid:2) 

limiting the ability of stockholders to call special meetings of stockholders;  

prohibiting stockholder action by written consent, thereby requiring all stockholder actions to be taken at a meeting of 
stockholders; and  

establishing advance notice requirements for nominations for election to the board of directors or for proposing matters 
that can be acted upon by stockholders at stockholder meetings.  

In addition, Section 203 of the Delaware General Corporation Law limits business combination transactions with 15% 
stockholders that have not been approved by our board of directors. These provisions and others could make it difficult for a third 
party to acquire us, or for members of our board of directors to be replaced, even if doing so would be beneficial to our stockholders. 
Because our board of directors is responsible for appointing the members of our management team, these provisions could, in turn, 
affect any attempt to replace the current management team. If a change of control or change in management is delayed or prevented, 
stockholders may lose an opportunity to realize a premium on shares of common stock or the market price of our common stock could 
decline.  

We do not expect to pay dividends in the foreseeable future. As a result, stockholders must rely on stock appreciation for any 
return on investment.  

We do not anticipate paying cash dividends on our common stock in the foreseeable future. Any payment of cash dividends will 
also depend on our financial condition, results of operations, capital requirements and other factors and will be at the discretion of our 
board of directors. Accordingly, stockholders will have to rely on capital appreciation, if any, to earn a return on investment in our 
common stock. Furthermore, pursuant to our credit facility, we are currently subject to restrictions on our ability to pay dividends and 
we may in the future become subject to other contractual restrictions on, or prohibitions against, the payment of dividends.  

Securities analysts may not continue, or additional securities analysts may not initiate, coverage for our common stock or may 
issue negative reports. This may have a negative impact on the market price of our common stock. 

Several securities analysts provide research coverage of our common stock. Some analysts have already published statements 

that do not portray our technology, products or procedures using our products in a positive light and others may do so in the future. If 
we are unable to educate those who publicize such reports about the benefits we believe our business provides, or if one or more of the 
analysts who elects to cover us downgrades our stock, our stock price would likely decline rapidly. If one or more of these analysts 
ceases coverage of our company, we could lose visibility in the market, which in turn could cause our stock price to decline. The 
trading market for our common stock may be affected in part by the research and reports that industry or financial analysts publish 
about us or our business. If sufficient securities analysts do not cover our common stock, the lack of research coverage may adversely 
affect the market price of our common stock. It may be difficult for companies such as ours, with smaller market capitalizations, to 
attract and maintain sufficient independent financial analysts that will cover our common stock. This could have a negative effect on 
the market price of our stock. 

The requirements of being a public company may strain our resources and distract management.  

As a public company, we are subject to the reporting requirements of the Securities Exchange Act of 1934, as amended 
(Exchange Act), and the Sarbanes-Oxley Act of 2002 (Sarbanes-Oxley Act). We are also subject to certain provisions of the Dodd-
Frank Wall Street Reform and Consumer Protection Act of 2010 (Dodd-Frank Act). The Exchange Act requires that we file annual, 
quarterly and current reports with respect to our business and financial condition. The Sarbanes-Oxley Act requires that we maintain 
effective disclosure controls and procedures and internal controls over financial reporting. In order to maintain and improve the 
effectiveness of our disclosure controls and procedures and internal control over financial reporting, significant resources and 
management oversight is required. The Dodd-Frank Act requires the SEC to adopt certain rules and regulations relating to our public 
disclosures, corporate governance and executive compensation, among other things, and such rules and regulations require significant 
attention from management. Compliance with all of these laws, rules and regulations may from time to time divert management’s 
attention from other business concerns, which could have a material adverse effect on our business, financial condition, results of 
operations and cash flows.  

The SEC has adopted rules regarding the disclosure of the use of conflict minerals (commonly referred to as tantalum, tin, 
tungsten and gold) which are mined from the Democratic Republic of the Congo (DRC) and neighboring countries. Under the rules, 
we are required to disclose the procedures we employ to determine the sourcing of such minerals and metals produced from those 
minerals. The requirements require due diligence efforts and could affect the sourcing of components used in our products. If the 
conflict minerals included in our products are found to be sourced from the DRC or surrounding countries, we may take actions to 
change materials or product designs to reduce the possibility that our purchase of conflict minerals may fund armed groups in the 
region. These actions could add engineering and other costs to the manufacture of our products. We expect to continue to incur costs 
in the investigation of the origin of the conflict minerals used in our products and in the reporting of the findings of our investigation. 
Our reputation may suffer if we have included conflict minerals in our products that are found to have funded armed groups in the 
DRC region. 

27 

 
ITEM 1B.  UNRESOLVED STAFF COMMENTS  

None.  

ITEM 2.  PROPERTIES  

The Company maintains its headquarters in Mason, Ohio in a leased facility totaling approximately 92,000 square feet. The 

facility contains the Company’s administrative, regulatory, engineering, product development, distribution and some manufacturing 
functions. The monthly rent for this space is $117. The initial lease term expires in September 2030. The Company also maintains the 
following locations: 

(cid:2)  Minneapolis, Minnesota – This location includes both administrative and product development space. The office is 

approximately 22,300 square feet with monthly rent of $22. The lease will expire in October 2022. 

(cid:2) 

(cid:2) 

(cid:2) 

(cid:2) 

San Ramon, California – This location is primarily used for research and development activities and is approximately 3,800 
square feet with monthly rent of $8. The lease will expire in December 2019.  

Amsterdam, Netherlands – This location is primarily for the administration of our European subsidiaries and is 
approximately 7,500 square feet. The monthly rent for this space is $17, and the lease will expire in January 2021.  

Hong Kong – This location is for the administration of business throughout Asia. Monthly rent under this lease, which 
expires in June 2018, is approximately $5.  

Beijing, China – This location is for the administration of business in China. Monthly rent under this lease, which expires in 
July 2018, is approximately $3.  

The Company believes that its existing facilities are adequate to meet its immediate needs and that suitable additional space will 

be available in the future on commercially reasonable terms as needed. 

ITEM 3.  LEGAL PROCEEDINGS  

The Company is not party to any material pending or threatened litigation. We may from time to time become a party to 

additional legal proceedings that arise in the ordinary course of business. See Note 10 – Commitments and Contingencies to our 
Consolidated Financial Statements.  

ITEM 4.  MINE SAFETY DISCLOSURES 

Not applicable 

28 

 
 
 
 
PART II 

ITEM 5.  MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER 

PURCHASES OF EQUITY SECURITIES  

Common Stock Market Price  

Our common stock is traded on the NASDAQ Global Market under the symbol “ATRC.” The following table sets forth the high 

and low closing sales price of our common stock for 2017 and 2016:  

2017 
First Quarter  
Second Quarter  
Third Quarter  
Fourth Quarter  

2016 
First Quarter  
Second Quarter  
Third Quarter  
Fourth Quarter  

Price Range 

High 

Low 

 19.20   $ 
 24.65   $ 
 24.88   $ 
 23.44   $ 

 14.94 
 18.54 
 20.00 
 17.69 

Price Range 

High 

Low 

 21.47   $ 
 17.75   $ 
 17.19   $ 
 20.06   $ 

 15.29 
 13.57 
 13.54 
 15.20 

  $ 
  $ 
  $ 
  $ 

  $ 
  $ 
  $ 
  $ 

As of February 23, 2018, the closing price of our common stock on the NASDAQ Global Market was $18.00 per share, and the 

number of stockholders of record was 86. 

Dividend Policy  

The Company has not declared or paid any dividends on its capital stock since incorporation. Furthermore, pursuant to the 

revolving credit facility terms, the Company is subject to certain restrictions on its ability to pay dividends. The Company currently 
expects to retain future earnings, if any, for use in the operation and expansion of the business and does not anticipate paying any cash 
dividends in the foreseeable future.  

29 

 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Performance Graph  

The following graph compares the cumulative total stockholder return on our common stock with the cumulative total return of 

the NASDAQ Composite and the NASDAQ Medical Equipment Index for the period beginning on January 1, 2013 and ending on 
December 31, 2017.  

*    This graph assumes that $100.00 was invested on December 31, 2012 in our common stock, the NASDAQ Composite Index and 
the NASDAQ Medical Equipment Index, and that all dividends are reinvested. No dividends have been declared or paid on our 
common stock. Stock performance shown in the above chart for our common stock is historical and should not be considered 
indicative of future price performance.  

AtriCure, Inc.   
NASDAQ Composite 
NASDAQ Medical Equipment 

12/31/2013 

12/31/2014 

12/31/2015 

12/31/2016 

12/31/2017 

  $ 
  $ 
  $ 

 270.72   $ 
 141.63   $ 
 118.21   $ 

 289.28   $ 
 162.09   $ 
 139.19   $ 

 325.22   $ 
 173.33   $ 
 155.48   $ 

 283.62   $ 
 187.19   $ 
 164.37   $ 

 264.35 
 242.29 
 232.47 

30 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
ITEM 6.  SELECTED FINANCIAL DATA  

The following table reflects selected financial data derived from our Consolidated Financial Statements for each of the last five 

years. The operating results data for the years ended December 31, 2017, 2016 and 2015 and the financial position data as of 
December 31, 2017 and 2016 are derived from our audited financial statements included in this Form 10-K. The operating results data 
for the years ended December 31, 2014 and 2013 and the financial position data as of December 31, 2015, 2014 and 2013 are derived 
from our audited financial statements not included in this Form 10-K. Historical results are not necessarily indicative of future results. 
The selected financial data set forth below should be read in conjunction with our financial statements, the related notes and 
“Management’s Discussion and Analysis of Financial Condition and Results of Operations” included elsewhere in this Form 10-K.  

Operating Results: 
Revenue  
Gross profit  
Gross margin  
Net loss  
Basic and diluted net loss per share  
Weighted average shares outstanding  
Financial Position: 
Cash, cash equivalents and investments  
Working capital  
Total assets  
Long-term debt and capital leases  
Stockholders’ equity  

2017 

Year Ended December 31, 
2015 (1) 

2016 

2014 

2013 (2) 

(in thousands, except per share data) 

  $ 

  $ 

 174,716   $ 
 126,163  
72.2%  
 (26,892)  
 (0.83)  
 32,387  

 155,109   $ 
 111,101  
71.6%  
 (33,338)  
 (1.05)  
 31,609  

 129,755   $ 
 92,875  
71.6%  
 (27,212)  
 (0.97)  
 28,058  

 107,454   $ 
 75,750  
70.5%  
 (16,211)  
 (0.61)  
 26,374  

 81,889 
 59,563 
72.7% 
 (11,462) 
 (0.56) 
 20,431 

 34,451   $ 
 50,355  
 267,704  
 36,861  
 161,166  

 47,009   $ 
 56,889  
 276,421  
 37,205  
 168,442  

 42,284   $ 
 43,164  
 273,092  
 13,710  
 186,685  

 68,543   $ 
 67,865  
 158,404  
 74  
 132,538  

 34,125 
 25,774 
 111,947 
 4,412 
 72,604 

_________________________ 
(1)  We acquired nContact for $116.8 million on October 13, 2015. The acquisition is included in our Consolidated Balance Sheets 
beginning October 13, 2015, and the results of operations are included in our Consolidated Statements of Operations and 
Comprehensive Loss beginning with the period October 14, 2015 through December 31, 2015. 

(2)  We acquired Estech for $39.7 million on December 31, 2013. The acquisition is included in our Consolidated Balance Sheets as 

of December 31, 2013. 

31 

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

OPERATIONS  

(Dollar amounts referenced in this Item 7 are in thousands, except per share amounts.) 

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with the 

accompanying consolidated financial statements and notes thereto contained in Item 8, “Financial Statements and Supplementary 
Data,” to provide an understanding of our results of operations, financial condition and cash flows. This discussion and analysis 
contains forward-looking statements that involve risks, uncertainties and assumptions. The actual results may differ from those 
anticipated in these forward-looking statements as a result of many factors, including but not limited to those set forth under Item 1A 
“Risk Factors,” the cautionary statement regarding forward-looking statements at the beginning of Part I and elsewhere in this Form 
10-K.  

Overview 

We are a leading innovator in treatments for atrial fibrillation (Afib) and left atrial appendage (LAA) management. We have 
several product lines for the ablation of cardiac tissue, including our Isolator Synergy Ablation System, the first and only surgical 
device approved by the United States Food and Drug Administration (FDA) for the treatment of persistent and longstanding persistent 
forms of Afib in patients undergoing certain open concomitant procedures. We also offer a variety of minimally invasive ablation 
devices and access tools to facilitate the growing trend in less invasive cardiac and thoracic surgery. Our cryoICE cryosurgery product 
line offers a variety of cryoablation devices for use in various types of cardiothoracic surgery. Our AtriClip Left Atrial Appendage 
Exclusion System is a device specifically designed to occlude the heart’s left atrial appendage. 

Physicians have adopted our radiofrequency (RF) ablation and cryoablation systems to treat Afib, and we believe that we are 

currently the market leader in the surgical treatment of Afib. Our products are used by physicians during both open-heart and 
minimally invasive surgical procedures, either on a concomitant or standalone basis. During a concomitant procedure, the physician 
ablates cardiac tissue and/or occludes the LAA, secondary, or concomitant, to a primary structural heart procedure such as a valve 
repair or replacement or coronary artery bypass graft (CABG). Our Isolator Synergy System is approved by FDA for the treatment of 
persistent and long-standing persistent Afib concomitant to other open-heart surgical procedures. All of our other ablation devices are 
cleared for sale under FDA 510(k) clearances, including our other RF and cryoablation products, which are indicated for the ablation 
of cardiac tissue and/or treatment of cardiac arrhythmias. In addition, our cryoICE probe is cleared for managing pain by temporarily 
ablating peripheral nerves. Our AtriClip products are 510(k)-cleared with an indication for the occlusion of the heart’s LAA, 
performed under direct visualization and in conjunction with other cardiac surgical procedures. Direct visualization, in this context, 
requires that the surgeon is able to see the heart directly, with or without assistance from a camera, endoscope or other appropriate 
viewing technologies. We also have a line of reusable surgical instruments typically used for cardiac valve replacement or repair. We 
anticipate that substantially all of our revenue for the foreseeable future will relate to products we currently sell, or are in the process 
of developing, which are used to ablate cardiac tissue, to occlude the left atrial appendage, to perform mitral and aortic valve 
replacement and repair and/or to ablate peripheral nerves during cardiothoracic surgery. 

In the United States, we sell our products to medical centers through our direct sales force. In certain international markets, such 

as Germany, France, the United Kingdom and the Benelux region, sales are also made directly to medical centers, while other 
international sales are made to distributors who in turn sell our products to end users. Our business is primarily transacted in U.S. 
Dollars with the exception of transactions with our European subsidiaries, which are transacted in Euros or British Pounds. 

32 

 
 
 
Results of Operations  

Year Ended December 31, 2017 compared to December 31, 2016  

The following table sets forth, for the periods indicated, our results of operations expressed as dollar amounts and as percentages 

of total revenue:  

Revenue  
Cost of revenue  
Gross profit  
Operating expenses: 

Research and development expenses  
Selling, general and administrative expenses  

Total operating expenses  

Loss from operations  
Other income (expense): 
Interest expense  
Interest income  
Other  
Other expense 
Loss before income tax expense  
Income tax expense  
Net loss  

Year Ended December 31, 

2017 

2016 

Amount 

% of 
Revenue 

Amount 

% of 
Revenue 

  $ 

  $ 

 174,716  
 48,553  
 126,163  

 34,144  
 116,998  
 151,142  
 (24,979)  

 (2,264)  
 227  
 138  
 (1,899)  
 (26,878)  
 14  
 (26,892)  

(dollars in thousands) 

 100.0  %  $ 
 27.8 
 72.2 

 155,109  
 44,008  
 111,101  

 19.5 
 67.0 
 86.5 
 (14.3) 

 (1.3) 
 0.1 
 0.1 
 (1.1) 
 (15.4) 
 — 

 (15.4)  %  $ 

 35,824  
 106,415  
 142,239  
 (31,138)  

 (1,801)  
 227  
 (586)  
 (2,160)  
 (33,298)  
 40  
 (33,338)  

 100.0  % 
 28.4 
 71.6 

 23.1 
 68.6 
 91.7 
 (20.1) 

 (1.2) 
 0.1 
 (0.4) 
 (1.4) 
 (21.5) 
 — 
 (21.5)  % 

Revenue. Total revenue increased 12.6% (12.4% on a constant currency basis). Revenue from customers in the United States 

increased $16,002, or 13.1%, and revenue from international customers increased $3,605, or 11.0% (9.6% on a constant currency 
basis). Sales in the United States grew across several key product categories. Ablation-related open-heart sales increased $6,467, or 
11%, primarily due to growth in our cryo products line, including the impact of the cryoFORM® product which launched in the second 
quarter of 2016. Ablation-related minimally invasive (MIS) sales increased $3,252, or 10%, reflecting strong growth in our EPi-Sense 
product line which was offset partially by a decline in legacy MIS product sales. Growth in EPi-Sense product resulted from both an 
increase in volume of procedures in existing accounts as well as the addition of new customer accounts. Legacy MIS product sales in 
the United States were impacted throughout 2017 by various disruptions to key accounts such as physician movement and wildfires in 
California. AtriClip sales increased $6,960, or 23%, due to increased volume and pricing. AtriClip sales reflect the positive impact of 
the AtriClip PRO2® and AtriClip PRO·V LAA Exclusion System devices, which launched in the second quarter of 2016 and late third 
quarter of 2017, respectively. International revenue grew primarily in Asia, Germany, France, Turkey, Austria and the Benelux region 
as a result of increased volumes in AtriClip and cryo product sales. 

Revenue reported on a constant currency basis is a non-GAAP measure and is calculated by applying previous period foreign 

currency (Euro) exchange rates to each of the comparable periods. Revenue is analyzed on a constant currency basis to better measure 
the comparability of results between periods. Because changes in foreign currency exchange rates have a non-operating impact on 
revenue, the Company believes that evaluating growth in revenue on a constant currency basis provides an additional and meaningful 
assessment of revenue to both management and the company’s investors. 

Cost of revenue and gross margin. Cost of revenue increased $4,545 and gross margin increased 0.6% from 71.6% in 2016 to 
72.2% in 2017. While 2017 includes heavier capital equipment sales, this factor is offset by a slight increase in the percentage of total 
revenue from customers in the United States, favorable product mix and lower inventory obsolescence charges in 2017. 

Research and development expenses. Research and development expenses decreased $1,680, or 4.7%. The decrease in 
expense was primarily due to lower expense of $1,887 related to product development projects resulting from the timing of project 
activities, $474 related to regulatory filing fees, $339 related to clinical trials and grants and $276 related to amortization expense. 
These decreases in expense were partially offset by higher expense of $1,115 related to product development, regulatory and clinical 
personnel costs resulting from increased headcount and $227 related to share-based compensation expense. 

Selling, general and administrative expenses. Selling, general and administrative expenses increased $10,583, or 9.9%, 

primarily due to higher expense of $9,136 related to personnel and related expenses, such as travel costs, resulting from increased 
headcount, $2,563 related to professional education, marketing and tradeshow expenses, $2,501 related to share-based compensation 
expense, $1,405 related to legal expenses and $530 related to product samples, largely related to the September 2017 launch of the 

33 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
AtriClip PRO·V LAA Exclusion System. These increases in expense were offset by a $5,047 reduction in expense related to the 
contingent consideration adjustment (see Note 3 – Fair Value to the Consolidated Financial Statements) and lower expenses related to 
consulting and professional services. 

Net interest expense. Net interest expense was $2,037 for 2017 and $1,574 for 2016. Interest expense associated with 
outstanding amounts on our term loan and capital lease obligations, as well as the amortization of financing costs, are included in net 
interest expense. Also included in net interest expense is interest income from investments, including gains and losses on investments 
sold during the period. The increase in interest expense was driven by a full year of expense incurred on borrowings under the term 
loan in 2017, which was effective April 2016. 

Other income and expense. Other income and expense consists primarily of foreign currency transaction gains and losses.  

Year Ended December 31, 2016 compared to December 31, 2015  

The following table sets forth, for the periods indicated, our results of operations expressed as dollar amounts and as percentages 

of total revenue:  

Revenue  
Cost of revenue  
Gross profit  
Operating expenses: 

Research and development expenses  
Selling, general and administrative expenses  

Total operating expenses  

Loss from operations  
Other income (expense): 
Interest expense  
Interest income  
Other  

Other income (expense)  
Loss before income tax expense  
Income tax expense  
Net loss  

Year Ended December 31, 

2016 

2015 

Amount 

% of 
Revenue 

Amount 

  $ 

  $ 

 155,109  
 44,008  
 111,101  

 35,824  
 106,415  
 142,239  
 (31,138)  

 (1,801)  
 227  
 (586)  
 (2,160)  
 (33,298)  
 40  
 (33,338)  

(dollars in thousands) 

 100.0  %  $ 
 28.4 
 71.6 

 129,755  
 36,880  
 92,875  

 23.1 
 68.6 
 91.7 
 (20.1) 

 (1.2) 
 0.1 
 (0.4) 
 (1.4) 
 (21.5) 
 — 

 (21.5)  %  $ 

 25,742  
 93,853  
 119,595  
 (26,720)  

 (292)  
 190  
 (354)  
 (456)  
 (27,176)  
 36  
 (27,212)  

% of 
Revenue 

 100.0  % 
 28.4 
 71.6 

 19.8 
 72.3 
 92.2 
 (20.6) 

 (0.2) 
 0.1 
 (0.3) 
 (0.4) 
 (21.0) 
 — 
 (21.0)  % 

Revenue. Total revenue increased 19.5% (19.6% on a constant currency basis), from $129,755 in 2015 to $155,109 in 2016. 

Constant currency basis amounts are calculated by applying previous period foreign currency exchange rates to each of the 
comparable periods. Revenue from sales to customers in the United States increased $20,173, or 19.7%, and revenue from sales to 
international customers increased $5,181, or 18.8% (18.9% on a constant currency basis). The increase in sales to customers in the 
United States was primarily due to increased sales of ablation-related open-heart products of $4,509, increased sales of ablation-
related minimally invasive (MIS) products of $9,605 and increased sales of the AtriClip system of $5,944. The increase in MIS sales 
was largely influenced by the nContact acquisition, which closed in the fourth quarter of 2015. Increases in both ablation-related open-
heart product and AtriClip system revenues were positively impacted by new product launches in 2016, which include the cryoFORM 
cryoablation probe and AtriClip PRO2™ device. While U.S. MIS and AtriClip sales were consistently strong throughout 2016, U.S. 
open-heart sales were up 11% through the third quarter but slowed to 1% growth during the fourth quarter. The Company is working 
to improve focus on the open-chest procedures and take advantage of recent guideline changes related to Afib from a U.S. 
cardiothoracic surgeon society. The increase in international revenue was primarily due to an increase in sales in Japan, China, Italy, 
Germany and France. Unlike domestic sales, international revenue growth was primarily the result of increased volumes, rather than 
new product launches or the nContact acquisition.  

Cost of revenue and gross margin. Cost of revenue increased $7,128, from $36,880 in 2015 to $44,008 in 2016. As a 

percentage of revenue, cost of revenue was 28.4% for 2015 and 2016. Gross margin for 2015 and 2016 was 71.6%. Favorable impacts 
on gross margin in 2016 include the suspension of the medical device excise tax, as well as product mix, which was affected by the 
nContact acquisition and new product launches. These increases in gross margin were offset by increased loaner generator 
depreciation and increased costs related to moving into a larger and more modern facility. While certain scrap and obsolescence 
charges were incurred in both 2016 and 2015, we expect such amounts to be significantly reduced in future years. 

34 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Research and development expenses. Research and development expenses increased $10,082, or 39.2%, from $25,742 in 2015 

to $35,824 in 2016. The increase in expense was primarily due to a $3,147 increase in product development, regulatory and clinical 
personnel expense, a $2,599 increase in product development project expense, a $1,334 increase in clinical trial spending, a $443 
increase in regulatory filing expense, a $452 increase in share-based compensation and a $348 increase in amortization expense. The 
nContact acquisition directly impacted personnel, clinical trial, regulatory filing and amortization expenses. 

Selling, general and administrative expenses. Selling, general and administrative expenses increased $12,562, or 13.4%, from 
$93,853 in 2015 to $106,415 in 2016. The increase was primarily due to a $6,560 increase in personnel and related expenses, such as 
travel costs, a $2,244 increase in share-based compensation expense and a $2,196 increase in marketing, tradeshows, training and 
related expenses, partially offset by a $2,489 decrease in expense due to transaction costs recorded in connection with the acquisition 
of nContact during 2015.  

Net interest income (expense). Net interest expense was $1,574 for 2016 and $102 for 2015. Interest expense associated with 
outstanding amounts on our term loan and capital lease obligations, as well as the amortization of financing costs, are included in net 
interest expense. The increase in interest expense was driven by the commencement of the Mason facility capital lease in late 2015 
and the addition of the term loan in April 2016. 

Other income and expense. Other income and expense consists primarily of foreign currency transaction gains and losses. 
Non-employee option gains and losses related to the fair market value change for fully vested options outstanding for consultants, 
which are accounted for as free-standing derivatives, and grant income were also included in other income and expense during 2015.  
Net other expense for 2016 and 2015 totaled $586 and $354. 

Liquidity and Capital Resources  

As of December 31, 2017, the Company had cash, cash equivalents and investments of $34,451 and outstanding debt of 
$24,100. We had unused borrowing capacity of $15,000 under our revolving credit facility. Most of our operating cash and all cash 
equivalents and investments are held by United States financial institutions. We had net working capital of $50,355 and an 
accumulated deficit of $225,866 as of December 31, 2017. 

Cash flows used in operating activities. Net cash used in operating activities was $8,944 during 2017. The primary net uses of 

cash for operating activities were as follows: 

(cid:2) 

(cid:2) 

the net loss of $26,892, offset by $19,950 of non-cash expenses, including $14,615 in share-based compensation, $9,128 
in depreciation and amortization and a change in fair value of contingent consideration of $4,078; and  

a net decrease in cash used related to changes in operating assets and liabilities of $2,002, due primarily to the following: 

(cid:2) 

(cid:2) 

(cid:2) 

an increase in accounts receivable of $1,464, due primarily to increased sales and the timing of collections;  

an increase in inventory of $4,477, due primarily to additional products in inventory, as well as increased inventory 
levels in support of anticipated revenue growth; and 

a $3,518 increase in accounts payable and accrued liabilities due primarily to an increase in accrued variable 
compensation payments. 

Cash flows provided by investing activities. Net cash provided by investing activities was $3,761 during 2017. The primary 

source of cash from investing activities was $26,600 related to sales and maturities of available-for-sale securities to fund operations. 
This source of cash was offset by $6,384 related to the purchase of property and equipment, which included the placement of our RF 
and cryo generators with our customers, and $16,455 related to the purchase of available-for-sale securities. 

Cash flows provided by financing activities. Net cash provided by financing activities during 2017 was $2,760, which was 
primarily due to proceeds from stock option exercises of $4,402 and proceeds from the issuance of common stock under our employee 
stock purchase plan of $2,110, partially offset by shares repurchased for payment of taxes on stock awards of $2,013 and debt and 
capital lease payments of $1,689. 

Credit facility. The Company’s Loan and Security Agreement with Silicon Valley Bank (SVB), as amended, restated, and 
modified effective April 25, 2016 (Loan Agreement) provides for a $25,000 term loan and a revolving credit facility under which we 
may borrow a maximum of $15,000. The term loan and revolving credit facility both mature in April 2021. According to the Loan 
Agreement, principal payments on the term loan are to be made ratably commencing eighteen months after the inception of the loan 
(November 2017) through the loan’s maturity date. The term loan accrues interest at the Prime Rate and is subject to an additional 
4.0% fee on the original $25,000 term loan principal amount at maturity or prepayment of the term loan. Borrowing availability under 
the revolving credit facility is based on the lesser of $15,000 or a borrowing base calculation as defined by the Loan Agreement. As of 
December 31, 2017, we had no borrowings under the revolving credit facility, and we had borrowing availability of $15,000. The 
revolving line of credit is subject to an annual commitment fee of $50, and any borrowings bear interest at the Prime Rate. The Loan 
Agreement also provides for certain prepayment and early termination fees and includes other customary terms and conditions. 

35 

The Loan Agreement establishes covenants related to maintaining a minimum liquidity ratio, achieving a minimum sales growth 
measured over a trailing twelve-month period and maintaining a minimum cash balance. Additional covenants include, among others, 
covenants that limit our ability to dispose of assets, enter into mergers or acquisitions, incur indebtedness, incur liens, pay dividends or 
make distributions on our capital stock, make investments or loans and enter into certain affiliate transactions, in each case subject to 
customary exceptions for a credit facility of this size and type. Certain covenants apply when we have outstanding borrowings under 
the revolving credit facility or when we hold less than $20,000 in cash and investments with SVB. Further, a minimum fixed charge 
ratio applies when specific covenant milestones are achieved. The occurrence of an event of default could result in an increase to the 
applicable interest rate by 3.0%, an acceleration of all obligations under the Loan Agreement, an obligation to repay all obligations in 
full and a right by SVB to exercise all remedies available to it under the Loan Agreement and related agreements including the 
Guaranty and Security Agreement. Specified assets have been pledged as collateral. We are in compliance with the covenants of the 
Loan Agreement as of December 31, 2017. 

Effective February 23, 2018, the Company and SVB entered into a Loan and Security Agreement which amends and restates the 

Company’s credit facility with SVB. The agreement provides for a $40,000 term loan and $20,000 revolving line of credit, with an 
option to increase the revolving line of credit by an additional $20,000. The Loan and Security Agreement credit facility has a five-
year term, expiring February 2023. Principal payments of the term loan are to be made ratably commencing eighteen months after the 
inception of the loan through the loan’s maturity date. If the Company meets certain conditions, as specified by the agreement, the 
commencement of term loan principal payments may be deferred by an additional six months. The term loan accrues interest at the 
greater of the Prime Rate plus 3.75% or 8.25% and is subject to an additional 3.50% fee on the original $40,000 term loan principal 
amount at maturity. The revolving line of credit is subject to an annual facility fee of 0.33% of the revolving line of credit, and any 
borrowings bear interest at the greater of the Prime Rate and 4.50%. The Loan and Security Agreement also provides for certain 
prepayment and early termination fees, as well as establishes covenants related to sales growth, along with other customary terms and 
conditions similar to those in the Company’s current agreement with SVB. The proceeds from the agreement are expected to fund 
current and future operations of the Company. 

In connection with the terms of our corporate headquarters lease agreement, a letter of credit in the amount of $1,250 was issued 

to the landlord in October 2015. The letter of credit is renewed annually and remains outstanding as of December 31, 2017. 

Uses of liquidity and capital resources. Our future capital requirements depend on a number of factors, including the rate of 

market acceptance of our current and future products, the resources we devote to developing and supporting our products, future 
expenses to expand and support our sales and marketing efforts, costs relating to changes in regulatory policies or laws that affect our 
operations and costs of filings, costs associated with clinical trials and securing regulatory approval for new products, costs associated 
with acquiring and integrating businesses, costs associated with prosecuting, defending and enforcing our intellectual property rights 
and possible acquisitions and joint ventures. Global economic turmoil may adversely impact our revenue, access to the capital markets 
or future demand for our products.  

We have on file with the SEC a shelf registration statement which allows us to sell any combination of senior or subordinated 

debt securities, common stock, preferred stock, warrants, depositary shares and units in one or more offerings should we choose to do 
so in the future. We expect to maintain the effectiveness of this shelf registration statement for the foreseeable future. 

We believe that our current cash, cash equivalents and investments, along with the cash we expect to generate or use for 
operations or access via our term loan and revolving line of credit, will be sufficient to meet our anticipated cash needs for working 
capital and capital expenditures for at least the next twelve months. The nContact transaction provides for contingent consideration to 
be paid upon attaining specified regulatory approvals and clinical and revenue milestones over the next three years. Subject to the 
terms and conditions of the nContact merger agreement, such contingent consideration will be paid in AtriCure common stock and 
cash, with a requirement to make payments in AtriCure common stock first, up to a specified maximum number of shares. Over the 
next twelve months, we do not expect our cash requirements to include significant payments of contingent consideration based on 
terms of the acquisition agreement and related milestones. However, we do expect to issue shares in the amount of $7,500 as payment 
of contingent consideration related to the completion of the trial enrollment milestone in 2018. 

If our sources of cash are insufficient to satisfy our liquidity requirements, we may seek to sell additional equity or debt 
securities or obtain a revised or additional credit facility. The sale of additional equity or convertible debt securities could result in 
dilution to our stockholders. If additional funds are raised through the issuance of debt securities, these securities could have rights 
senior to those associated with our common stock and could contain covenants that would restrict our operations. Finally, our term 
loan agreement and revolving line of credit require compliance with certain financial and other covenants. If we are unable to maintain 
these financing arrangements, we may be required to reduce the scope of our planned research and development, clinical activities and 
selling, training, education and marketing efforts. 

36 

 
 
Contractual Obligations and Commitments    

The following table sets forth our approximate aggregate obligations at December 31, 2017 for future payments under contracts 

and other contingent commitments:  

Contractual Obligations 
Long-term debt(1)   
Capital leases(2)   
Operating leases(3)   
Royalty obligations(4)   
Restricted grants 
Total contractual obligations  

 _________________________ 

  $ 

  $ 

Total 
 24,100   $ 
 20,451  
 3,348  
 2,379  
 804  
 51,082   $ 

Less than 
1 year 

1-3 years 

3-5 years 

5 years 

  More than 

 —   $ 

 1,468  
 965  
 2,379  
 804  
 5,616   $ 

 9,070   $ 
 2,990  
 1,664  
 —  
 —  
 13,724   $ 

 13,606   $ 
 3,038  
 719  
 —  
 —  
 17,363   $ 

 1,424 
 12,955 
 — 
 — 
 — 
 14,379 

(1) 

Long-term debt represents principal repayment related to our term loan. Obligations under the term loan reflect the impact of the 
refinancing transaction consummated in February 2018, which delays the payment of principal amounts under the term loan for 
18 months, after which principal payments are made ratably until maturity in February 2023. Interest on the term loan accrues at 
the Prime Rate and is payable monthly over the term of the loan. In addition, we have a contractual obligation to pay interest on 
amounts drawn on the revolving credit facility.  

(2)  Capital leases consist of principal and interest payments related to a building and computer equipment. The rent payments 

related to our corporate headquarters building in Mason, Ohio are also included in these amounts. See Note 9 – Indebtedness to 
our Consolidated Financial Statements.  

(3)  Represents lease commitments under various operating leases.  

(4)  Represents obligations for royalty agreements ranging from 3% to 5% of specified product sales estimated using 2017 sales. See 

Note 10 – Commitments and Contingencies to our Consolidated Financial Statements.  

We have contractual obligations for contingent consideration payments related to the nContact acquisition. Subject to the terms 

and conditions of the nContact merger agreement, such contingent consideration will be paid in AtriCure common stock and cash, 
with a requirement to make payments in AtriCure common stock first, up to a specified maximum number of shares.  

Off-Balance-Sheet Arrangements  

As of December 31, 2017, we had operating lease agreements that were not recorded on the Consolidated Balance Sheets. 

Operating leases are used in the normal course of business.  

Inflation  

Inflation has not had a significant impact on our historical operations and we do not expect it to have a significant impact on our 

results of operations or financial condition in the foreseeable future.  

Critical Accounting Policies and Estimates 

Our discussion and analysis of our financial condition and results of operations is based upon our consolidated financial 

statements, which have been prepared in accordance with accounting principles generally accepted in the United States. The 
preparation of consolidated financial statements requires management to make estimates and judgments that affect the reported 
amounts of assets and liabilities, revenue and expenses, and disclosures of contingent assets and liabilities at the date of the financial 
statements. On a periodic basis, we evaluate our estimates, including those related to sales returns and allowances, accounts 
receivable, inventories and share-based compensation. We use authoritative pronouncements, historical experience and other 
assumptions as the basis for making estimates. Actual results could differ from those estimates under different assumptions or 
conditions. We have described our significant accounting policies in Note 1 – Description of Business and Summary of Significant 
Accounting Policies to our consolidated financial statements included in this Form 10-K. 

We believe the following critical accounting policies affect our more significant judgments and estimates used in the preparation 

of our consolidated financial statements.  

Revenue Recognition—Revenue is generated primarily from the sale of our disposable surgical devices. Pursuant to our 
standard terms of sale, revenue is recognized when title to the goods and risk of loss transfers to customers and there are no remaining 
obligations that will affect customers’ final acceptance of the sale. Generally, our standard terms of sale define the transfer of title and 
risk of loss to occur upon shipment to the respective customer. We generally do not maintain any post-shipping obligations to the 
recipients of the products. No installation, calibration or testing of this equipment is performed by AtriCure subsequent to shipment to 
the customer in order to render it operational. Shipping and handling revenues and cost of freight for shipments made to customers is 
included in revenue and cost of revenue. Sales and other value-added taxes collected from customers and remitted to governmental 

37 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
authorities are excluded from revenue. We sell our products through a direct sales force, distributors outside of the U.S. and through a 
wholly-owned subsidiary, AtriCure Europe, B.V. Terms of sale are generally consistent for both end-users and distributors except that 
payment terms are generally net 30 days for end-users and net 60 days for distributors, with limited exceptions.  

We account for revenue in accordance with FASB ASC 605, “Revenue Recognition” (ASC 605). We determine the timing of 
revenue recognition based upon factors such as passage of title, payment terms and ability to return products. We recognize revenue 
when all of the following criteria are met: (i) there is persuasive evidence that an arrangement exists; (ii) delivery of the products 
and/or services has occurred; (iii) the selling price is fixed or determinable; and (iv) collectability is reasonably assured.  

We maintain a provision for sales returns and allowances to account for potential returns of defective or damaged products, 

products shipped in error and invoice adjustments, as well as current deferrals of revenue. We adjust the provision quarterly using a 
combination of specific identification and an estimated general reserve based on historical experience. 

Allowance for Doubtful Accounts Receivable—We evaluate the collectability of accounts receivable to determine the 

appropriate reserve for doubtful accounts. In determining the amount of the reserve, we consider the aging of account balances, 
historical credit losses, customer-specific information and other relevant factors. We review accounts receivable and adjust the 
allowance based on current circumstances and charge off uncollectible receivables against the allowance when all attempts to collect 
the receivable have failed. Our history of write-offs against the allowance has not been significant. 

Inventories—Our inventories are stated at the lower of cost or net realizable value based on the first-in, first-out cost method 

(FIFO) and consist of raw materials, work in process and finished goods. Our industry is characterized by rapid product development 
and frequent new product introductions. Uncertain timing of product approvals, variability in product launch strategies and variation 
in product use all impact excess and obsolete inventory. We estimate and record an inventory reserve for excess, slow moving and 
obsolete inventory on a quarterly basis. 

Property and Equipment—We state property and equipment at cost less accumulated depreciation. Depreciation is computed 
using the straight-line method for financial reporting purposes and applied over the estimated useful lives of the assets. Included in 
property and equipment are generators and other capital equipment (such as our RF and cryo generators) that are placed with direct 
customers that use our disposable products. These generators and other capital equipment are depreciated over a period of one to three 
years, which approximates their useful lives, and such depreciation is included in cost of revenue. We estimate the useful lives of this 
equipment based on anticipated usage by our customers and the timing and impact of our expected new technology rollouts. To the 
extent we experience changes in the usage of this equipment or the introductions of new technologies, the estimated useful lives of this 
equipment may change in a future period.  

Intangible Assets—Intangible assets with determinable useful lives are amortized on a straight-line basis over the estimated 
periods benefitted. Included in intangible assets is In Process Research and Development (IPR&D), which represents the value of 
acquired technology which has not yet reached technological feasibility. The primary basis for determining the technological 
feasibility is obtaining specific regulatory approvals. IPR&D is accounted for as an indefinite-lived intangible asset until completion 
or abandonment of the IPR&D project. Upon completion of the development project, the IPR&D will be amortized over its estimated 
useful life. If the IPR&D project is abandoned or regulatory approvals are not obtained, the related IPR&D asset would be written off. 
We review intangible assets for impairment using our best estimates based on reasonable and supportable assumptions and 
projections. 

Goodwill— Goodwill represents the excess of purchase price over the fair value of the net assets acquired in business 
combinations. We test goodwill for impairment annually on November 30, or more often if impairment indicators are present. Our 
goodwill is accounted for in a single reporting unit representing the Company as a whole.  

Share-Based Employee Compensation—We account for share-based compensation for all share-based payment awards, 
including stock options, restricted stock, and stock purchases related to an employee stock purchase plan, based on their estimated fair 
values. We estimate the fair value of time-based options on the date of grant using the Black-Scholes option pricing model (Black-
Scholes model). Our determination of fair value of share-based payment awards is affected by our stock price, as well as assumptions 
regarding a number of subjective variables. These variables include but are not limited to our expected stock price volatility over the 
term of the awards and actual and projected employee stock option exercise behaviors. The fair value of our market-based 
performance option grants is estimated at the date of grant using a Monte-Carlo simulation. The value of the portion of the awards that 
is ultimately expected to vest is recognized as expense over the requisite service periods in our Consolidated Statements of Operations 
and Comprehensive Loss.  

We estimate the fair value of restricted stock awards based upon the grant date closing market price of our common stock.  

We also have an employee stock purchase plan (ESPP) which is available to all eligible employees as defined by the plan 

document. Under the ESPP, shares of our common stock may be purchased at a discount. We estimate the number of shares to be 
purchased under the ESPP at the beginning of the purchase period and calculate estimated compensation expense using the Black-
Scholes model based upon the fair value of the stock at the beginning of the purchase period. Compensation expense is recognized 
over each purchase period, and expense is adjusted at the time of stock purchase.  

38 

Acquisition-Related Contingent Consideration—Contingent consideration arrangements obligate the Company to pay former 
shareholders of an acquired entity certain amounts if specified future events occur or conditions are met, such as the achievement of 
certain technological milestones or the achievement of targeted revenue milestones. We measure such liabilities using unobservable 
inputs by applying an income approach, such as the discounted cash flow technique or the probability-weighted scenario method. 
Various key assumptions, such as the probability of achievement of the agreed milestones, projected revenues from acquisitions and 
the discount rate, are used in the determination of fair value of contingent consideration arrangements and are not observable in the 
market. Subsequent revisions to key assumptions, which impact the estimated fair value of contingent consideration liabilities, are 
reflected in the Consolidated Statements of Operations and Comprehensive Loss.  

Taxes—Deferred income tax assets and liabilities are recognized for the future tax consequences attributable to differences 
between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and 
tax credit carryforwards. Deferred income tax assets and liabilities are measured using enacted tax rates expected to apply to taxable 
income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred income tax 
assets and liabilities from a change in tax rates is recognized in the period that includes the enactment date. 

Our estimate of the valuation allowance for deferred tax assets requires us to make significant estimates and judgments about 

our future operating results. Deferred income tax assets are reduced by valuation allowances if, based on the consideration of all 
available evidence, it is more-likely-than-not that some portion of the deferred tax asset will not be realized. Significant weight is 
given to evidence that can be objectively verified. We evaluate deferred income tax assets on an annual basis to determine if valuation 
allowances are required by considering all available evidence. Deferred income tax assets are realized by having sufficient future 
taxable income to allow the related tax benefits to reduce taxes otherwise payable. The sources of taxable income that may be 
available to realize the benefit of deferred tax assets are future reversals of existing taxable temporary differences, future taxable 
income, exclusive of reversing temporary differences and carryforwards, taxable income in carry-back years and tax planning 
strategies that are both prudent and feasible. In evaluating whether to record a valuation allowance, the applicable accounting 
standards deem that the existence of cumulative losses in recent years is a significant piece of objectively verifiable negative evidence 
that must be overcome by objectively verifiable positive evidence to avoid the need to record a valuation allowance.  

We believe our critical accounting policies regarding revenue recognition, allowance for uncollectible accounts receivable, 
inventories, property and equipment, intangible assets, goodwill, share-based employee compensation, acquisition-related contingent 
consideration and taxes affect our more significant judgments and estimates used in the preparation of our consolidated financial 
statements. We base our judgments and estimates on historical experience, current conditions and other reasonable factors. 

Recent Accounting Pronouncements  

See Note 2 – Recent Accounting Pronouncements to our Consolidated Financial Statements for further information. 

39 

 
 
 
ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK 

(Amounts referenced in this Item 7A are in thousands, except per share amounts.) 

The Company is exposed to various market risks, which include potential losses arising from adverse changes in market rates 
and prices, such as foreign exchange fluctuations and changes in interest rates. Interest on the term loan and revolving credit facility 
accrue at the Prime Rate.  

For the years ended December 31, 2017 and 2016, products sold by AtriCure Europe, B.V. accounted for 12.5% and 12.7% of 

the Company’s total revenue. Since such revenue was primarily denominated in Euros, the Company is exposed to exchange rate 
fluctuations between the Euro and the U.S. Dollar, as well as exchange rate fluctuations between the British Pound and the Euro. For 
the years ended December 31, 2017 and 2016, foreign currency transaction gains (losses) of $138 and ($586) were recorded primarily 
in connection with partial settlements of the intercompany receivable balance with the subsidiary and invoices transacted in British 
Pounds. For revenue denominated in Euros, if there is an increase in the rate at which Euros are exchanged for U.S. Dollars, it will 
require more Euros to equal a specified amount of U.S. Dollars than before the rate increase. In such cases, and if products are priced 
in Euros, the Company will receive less in U.S. Dollars than was received before the rate increase went into effect. If products are 
priced in U.S. Dollars and competitors price their products in Euros, an increase in the relative strength of the U.S. Dollar could result 
in the Company’s price not being competitive in a market where business is transacted in Euros. The Euro to U.S. Dollar conversion 
rate fluctuations may impact our reported revenue and expenses.  

The Company invests its cash primarily in money market accounts, U.S. government agencies and securities, corporate bonds 

and commercial paper. Although the Company believes its cash to be invested in a conservative manner, with cash preservation being 
the primary investment objective, the value of the securities held will fluctuate with changes in the financial markets including, among 
other things, changes in interest rates, credit quality and general volatility. This risk is managed by investing in high quality 
investment grade securities with short-term maturities.  

Financial instruments that potentially subject the Company to credit risk consist of cash and cash equivalent balances and 
investments in corporate bonds. Certain of AtriCure’s cash and cash equivalents balances exceed FDIC insured limits or are invested 
in money market accounts with investment banks that are not FDIC-insured. The Company places its cash and cash equivalents in 
what it believes to be credit-worthy financial institutions. As of December 31, 2017, $21,360 of the cash and cash equivalents balance 
was in excess of FDIC limits.  

40 

 
  
 
 
ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA 

ATRICURE, INC. AND SUBSIDIARIES 

INDEX TO FINANCIAL STATEMENTS  

Financial Statements: 

Report of Independent Registered Public Accounting Firm 
Consolidated Balance Sheets 
Consolidated Statements of Operations and Comprehensive Loss 
Consolidated Statements of Stockholders’ Equity 
Consolidated Statements of Cash Flows 
Notes to Consolidated Financial Statements 

Financial Statement Schedule: 

Schedule II Valuation and Qualifying Accounts 

Page 

42 
43 
44 
45 
46 
47 

66 

41 

 
  
 
 
 
 
 
  
 
 
  
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM  

To the stockholders and the Board of Directors of  
AtriCure, Inc. 
Mason, Ohio  

Opinion on the Financial Statements 

We have audited the accompanying consolidated balance sheets of AtriCure, Inc. and subsidiaries (the "Company") as of December 
31, 2017 and 2016, the related consolidated statements of operations and comprehensive loss, stockholders’ equity, and cash flows for 
each of the three years in the period ended December 31, 2017, and the related notes and the schedule listed in the Index at Item 15 
(collectively referred to as the "financial statements"). In our opinion, the financial statements present fairly, in all material respects, 
the financial position of the Company as of December 31, 2017 and 2016, and the results of its operations and its cash flows for each 
of the three years in the period ended December 31, 2017, in conformity with accounting principles generally accepted in the United 
States of America.  

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) 
(PCAOB), the Company's internal control over financial reporting as of December 31, 2017, based on criteria established in Internal 
Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our 
report dated February 28, 2018, expressed an unqualified opinion on the Company's internal control over financial reporting. 

Basis for Opinion 

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

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

 /s/ Deloitte & Touche LLP 

Cincinnati, Ohio 
February 28, 2018 

We have served as the Company's auditor since 2002. 

42 

 
 
  
ATRICURE, INC. AND SUBSIDIARIES  
CONSOLIDATED BALANCE SHEETS  
DECEMBER 31, 2017 and 2016  
(In Thousands, Except Per Share Amounts) 

Assets 
Current assets: 

Cash and cash equivalents  
Short-term investments  
Accounts receivable, less allowance for doubtful accounts of $32 and $246 
Inventories  
Other current assets  

Total current assets  
Property and equipment, net  
Long-term investments  
Intangible assets, net  
Goodwill  
Other noncurrent assets  
Total Assets  

Liabilities and Stockholders’ Equity 
Current liabilities: 

Accounts payable  
Accrued liabilities  
Other current liabilities and current maturities of capital leases and long-term debt 

Total current liabilities  

Capital leases  
Long-term debt 
Other noncurrent liabilities  

Total Liabilities  

Commitments and contingencies (Note 10) 
Stockholders’ Equity: 

  $ 

  $ 

  $ 

2017 

2016 

 21,809   $ 
 12,642  
 23,083  
 22,451  
 2,273  
 82,258  
 28,749  
 —  
 50,764  
 105,257  
 676  
 267,704   $ 

 12,431   $ 
 18,911  
 561  
 31,903  
 12,761  
 24,100  
 37,774  
 106,538  

 24,208 
 19,801 
 21,094 
 17,660 
 2,954 
 85,717 
 29,995 
 3,000 
 52,131 
 105,257 
 321 
 276,421 

 10,673 
 16,467 
 1,688 
 28,828 
 13,319 
 23,886 
 41,946 
 107,979 

Common stock, $0.001 par value, 90,000 shares authorized and 34,586 and 33,342 issued and  
outstanding 
Additional paid-in capital  
Accumulated other comprehensive income (loss) 
Accumulated deficit  

Total Stockholders’ Equity  

Total Liabilities and Stockholders’ Equity  

 35  
 386,963  
 34  
 (225,866)  
 161,166  
 267,704   $ 

 33 
 367,851 
 (468) 
 (198,974) 
 168,442 
 276,421 

  $ 

See accompanying notes to consolidated financial statements. 

43 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
ATRICURE, INC. AND SUBSIDIARIES 
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS 
YEARS ENDED DECEMBER 31, 2017, 2016 and 2015 
(In Thousands, Except Per Share Amounts) 

Revenue  
Cost of revenue  

Gross profit  

Operating expenses: 

Research and development expenses  
Selling, general and administrative expenses  

Total operating expenses  

Loss from operations  
Other income (expense): 
Interest expense  
Interest income  
Other  

Loss before income tax expense  
Income tax expense  
Net loss  
Basic and diluted net loss per share  
Weighted average shares outstanding – basic and diluted  
Comprehensive loss: 
Unrealized gain on investments  
Foreign currency translation adjustment  
Other comprehensive income (loss)  
Net loss  
Comprehensive loss, net of tax 

  $ 

2017 
 174,716   $ 
 48,553  
 126,163  

2016 
 155,109   $ 
 44,008  
 111,101  

2015 
 129,755 
 36,880 
 92,875 

 34,144  
 116,998  
 151,142  
 (24,979)  

 35,824  
 106,415  
 142,239  
 (31,138)  

 (2,264)  
 227  
 138  
 (26,878)  
 14  
 (26,892)   $ 
 (0.83)   $ 

 (1,801)  
 227  
 (586)  
 (33,298)  
 40  
 (33,338)   $ 
 (1.05)   $ 

 32,387  

 31,609  

  $ 
  $ 

  $ 

 15   $ 

 18   $ 

 487  
 502  
 (26,892)  
 (26,390)   $ 

 125  
 143  
 (33,338)  
 (33,195)   $ 

  $ 

 25,742 
 93,853 
 119,595 
 (26,720) 

 (292) 
 190 
 (354) 
 (27,176) 
 36 
 (27,212) 
 (0.97) 
 28,058 

 15 
 (278) 
 (263) 
 (27,212) 
 (27,475) 

See accompanying notes to consolidated financial statements. 

44 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
ATRICURE, INC. AND SUBSIDIARIES 
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY 
YEARS ENDED DECEMBER 31, 2017, 2016, and 2015 
(In Thousands)  

Common Stock  
  Shares     Amount    

  Additional     
Paid-in 
Capital  

  Accumulated    Comprehensive 
Income (Loss)  

Deficit  

Accumulated 
Other 

Total 

  Stockholders’ 

Equity  

Balance—December 31, 2014 

Issuance of common stock through public offering  

 27,580     
 3,757     

 28     
 3     

 271,282     
 68,985     

 (138,424)    
 —    

 (348)    
 —    

 132,538  
 68,988  

Issuance of common stock under equity incentive 
    plans  

Issuance of common stock under employee stock 
    purchase plan  
Reclassification of non-employee option liability  
Share-based employee compensation expense  
Other comprehensive loss  
Net loss  

Balance—December 31, 2015 

Issuance of common stock under equity incentive 
    plans  

Issuance of common stock under employee stock 
    purchase plan  
Share-based employee compensation expense  
Other comprehensive income 
Net loss  

Balance—December 31, 2016 

Issuance of common stock under equity incentive 
    plans  

Issuance of common stock under employee stock 
    purchase plan  
Share-based employee compensation expense  
Other comprehensive income 
Net loss  

Balance—December 31, 2017 

 850     

 1     

 1,920     

 —    

 —    

 1,921  

 87     
 —    
 —    
 —    
 —    
 32,274    $ 

 —    
 —    
 —    
 —    
 —    
 32    $ 

 1,539     
 177     
 8,997     
 —    
 —    
 352,900    $ 

 —    
 —    
 —    
 —    
 (27,212)    
 (165,636)   $ 

 —    
 —    
 —    
 (263)    
 —    
 (611)   $ 

 1,539  
 177  
 8,997  
 (263) 
 (27,212) 
 186,685  

 934     

 1     

 1,636     

 —    

 —    

 1,637  

 134     
 —    
 —    
 —    
 33,342    $ 

 —    
 —    
 —    
 —    
 33    $ 

 1,618     
 11,697     
 —    
 —    
 367,851    $ 

 —    
 —    
 —    
 (33,338)    
 (198,974)   $ 

 —    
 —    
 143     
 —    
 (468)   $ 

 1,618  
 11,697  
 143  
 (33,338) 
 168,442  

 1,112     

 2     

 2,387     

 —    

 —    

 2,389  

 132     
 —    
 —    
 —    
 34,586    $ 

 —    
 —    
 —    
 —    
 35    $ 

 2,110     
 14,615     
 —    
 —    
 386,963    $ 

 —    
 —    
 —    
 (26,892)    
 (225,866)   $ 

 —    
 —    
 502     
 —    
 34    $ 

 2,110  
 14,615  
 502  
 (26,892) 
 161,166  

See accompanying notes to consolidated financial statements. 

45 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
   
 
   
 
 
   
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
ATRICURE, INC. AND SUBSIDIARIES  
CONSOLIDATED STATEMENTS OF CASH FLOWS 
YEARS ENDED DECEMBER 31, 2017, 2016 and 2015  
(In Thousands) 

Cash flows from operating activities: 

Net loss  
Adjustments to reconcile net loss to net cash used in operating activities: 

Share-based compensation expense  
Depreciation  
Amortization of intangible assets  
Amortization of deferred financing costs  
Loss on disposal of property and equipment and impairment of assets 
Realized (gain) loss from foreign exchange on intercompany transactions  
Amortization/accretion on investments  
Change in allowance for doubtful accounts   
Change in fair value of contingent consideration   

Changes in operating assets and liabilities, net of amounts acquired: 

Accounts receivable  
Inventories  
Other current assets  
Accounts payable  
Accrued liabilities  
Other noncurrent assets and liabilities  

Net cash used in operating activities  

Cash flows from investing activities: 

Purchases of available-for-sale securities  
Sales and maturities of available-for-sale securities  
Purchases of property and equipment  
Proceeds from sale of property and equipment  
Increases in property under build-to-suit obligation  
Cash paid for nContact business combination 

Net cash provided by (used in) investing activities  

Cash flows from financing activities: 
Proceeds from debt borrowings 
Payments on debt and capital leases  
Proceeds from build-to-suit obligation  
Proceeds from economic incentive loan  
Payment of debt fees 
Proceeds from stock option exercises  
Shares repurchased for payment of taxes on stock awards  
Proceeds from issuance of common stock under employee stock purchase plan  
Payment of stock issuance fees 

Net cash provided by financing activities  

Effect of exchange rate changes on cash and cash equivalents 
Net (decrease) increase in cash and cash equivalents  
Cash and cash equivalents—beginning of period  
Cash and cash equivalents—end of period  
Supplemental cash flow information: 

Cash paid for interest  
Cash paid for income taxes  
Non-cash investing and financing activities: 

Accrued purchases of property and equipment  
Assets acquired through capital lease  
Capital lease asset early termination   
Stock issuance in business combinations 

Contingent consideration in business combinations 

46 

2017 

2016 

2015 

  $ 

 (26,892)   $ 

 (33,338)   $ 

 (27,212) 

 14,615   
 7,761   
 1,367   
 264   
 336   
 (173)  
 30   
 (172)  
 (4,078)  

 (1,464)  
 (4,477)  
 829   
 1,290   
 2,228   
 (408)  
 (8,944)  

 (16,455)  
 26,600   
 (6,384)  
 —  
 —  
 —  
 3,761   

 11,697   
 7,655   
 1,644   
 218   
 433   
 407   
 126   
 149   
 969   

 (1,982)  
 (79)  
 122   
 (1,072)  
 (1,915)  
 (153)  
 (15,119)  

 (28,592)  
 24,202   
 (7,692)  
 3   
 —  
 —  
 (12,079)  

 —  
 (1,689)  
 —  
 —  
 (50)  
 4,402   
 (2,013)  
 2,110   
 —  
 2,760   
 24   
 (2,399)  
 24,208   
 21,809    $ 

 25,000   
 (439)  
 —  
 —  
 (120)  
 3,337   
 (1,701)  
 1,618   
 —  
 27,695   
 (53)  
 444   
 23,764   
 24,208    $ 

 2,002    $ 
 37   

 1,506    $ 
 30   

 650   
 2   
 —  
 —  

 —  

 340   
 152   
 37   
 —  

 —  

 8,997  
 4,975  
 1,303  
 61  
 276  
 434  
 577  
 144  
 — 

 (900) 
 (2,950) 
 (928) 
 4,013  
 3,070  
 298  
 (7,842) 

 (19,525) 
 40,602  
 (13,445) 
 — 
 (10,552) 
 (7,581) 
 (10,501) 

 — 
 (263) 
 10,552  
 340  
 (62) 
 2,703  
 (782) 
 1,539  
 (66) 
 13,961  
 (238) 
 (4,620) 
 28,384  
 23,764  

 232  
 20  

 1,277  
 50  
 — 
 69,054  

 40,207  

  $ 

  $ 

  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 
(In Thousands, Except Per Share Amounts) 

1. DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 

Nature of the Business—The “Company” or “AtriCure” consists of AtriCure, Inc. and its wholly-owned subsidiaries. The 
Company is a leading innovator in treatments for atrial fibrillation (Afib) and left atrial appendage (LAA) management, and it sells its 
products to medical centers globally through its direct sales force and distributors. 

Principles of Consolidation—The Consolidated Financial Statements include the accounts of the Company, AtriCure, LLC, 

Endoscopic Technologies, LLC and nContact Surgical, LLC, the Company’s wholly-owned subsidiaries, all organized in the State of 
Delaware; AtriCure Europe B.V. (AtriCure Europe), the Company’s wholly-owned subsidiary incorporated in the Netherlands; 
AtriCure Spain, S.L., AtriCure Europe’s wholly-owned subsidiary incorporated in Spain, AtriCure Germany GmbH, AtriCure 
Europe’s wholly-owned subsidiary incorporated in Germany, and AtriCure Hong Kong Limited, the Company’s wholly-owned 
subsidiary incorporated in Hong Kong. All intercompany accounts and transactions have been eliminated in consolidation.  

Cash and Cash Equivalents—The Company considers highly liquid investments with maturities of three months or less at the 

date of acquisition as cash equivalents in the accompanying Consolidated Financial Statements. 

Investments—The Company places its investments primarily in U.S. Government agencies and securities, corporate bonds and 
commercial paper and classifies all investments as available-for-sale. Investments with maturities of less than one year are classified 
as short-term investments. Investments are recorded at fair value, with unrealized gains and losses recorded as accumulated other 
comprehensive income (loss). Gains and losses are recognized using the specific identification method when securities are sold and 
are included in interest income or expense in the Consolidated Statements of Operations and Comprehensive Loss.  

Revenue Recognition—The Company accounts for revenue in accordance with Financial Accounting Standards Board (FASB) 
Accounting Standards Codification (ASC) 605, “Revenue Recognition” (ASC 605). The Company recognizes revenue when all of the 
following criteria are met: (i) there is persuasive evidence that an arrangement exists, (ii) delivery of the products and/or services has 
occurred, (iii) the selling price is fixed or determinable, and (iv) collectability is reasonably assured.  

Pursuant to the Company’s standard terms of sale, revenue is recognized when title to the goods and risk of loss transfers to 

customers and there are no remaining obligations that will affect the customers’ final acceptance of the sale. Generally, the 
Company’s standard terms of sale define the transfer of title and risk of loss to occur upon shipment to the respective customer. The 
Company does not maintain any post-shipping obligations to customers. No installation, calibration or testing of products is performed 
by the Company subsequent to shipment to the customer in order to render products operational.  

Revenue includes shipping and handling revenue of $1,090, $1,266 and $1,056 in 2017, 2016 and 2015. Cost of freight for 
shipments to customers is included in cost of revenue. Sales and other value-added taxes collected from customers and remitted to 
governmental authorities are excluded from revenue. The Company sells its products primarily through a direct sales force, with sales 
made through distributors in select international markets. Terms of sale are generally consistent for both end-users and distributors 
except that payment terms are generally net 30 days for end-users and net 60 days for distributors, with limited exceptions.  

Sales Returns and Allowances—The Company maintains a provision for sales returns and allowances to account for potential 
returns of defective or damaged products, products shipped in error and invoice adjustments, as well as current deferrals of revenue. 
The Company adjusts the provision quarterly using a combination of specific identification and an estimated general reserve based on 
historical experience. Increases to the provision result in a reduction of revenue. The provision is included in accrued liabilities in the 
Consolidated Balance Sheets. 

Allowance for Doubtful Accounts Receivable—The Company evaluates the collectability of accounts receivable to determine 

the appropriate reserve for doubtful accounts. In determining the amount of the reserve, the Company considers aging of account 
balances, historical credit losses, customer-specific information and other relevant factors. An increase to the allowance for doubtful 
accounts results in a corresponding increase in selling, general and administrative expense. The Company reviews accounts receivable 
and adjusts the allowance based on current circumstances and charges off uncollectible receivables against the allowance when all 
attempts to collect the receivable have failed. The Company’s history of write-offs has not been significant. 

Inventories—Inventories are stated at the lower of cost or net realizable value based on the first-in, first-out cost method (FIFO) 

and consist of raw materials, work in process and finished goods. The Company’s industry is characterized by rapid product 
development and frequent new product introductions. Uncertain timing of product approvals, variability in product launch strategies 
and variation in product use all impact inventory reserves for excess and obsolete products. An estimated inventory reserve for excess, 
slow moving and obsolete inventory is recorded quarterly. An increase to inventory reserves results in a corresponding increase in cost 
of revenue. Inventories are written off against the reserve when they are physically disposed.  

Property and Equipment—Property and equipment is stated at cost less accumulated depreciation. Depreciation is computed 

using the straight-line method over the estimated useful lives of assets (see Note 7). The Company reassesses the useful lives of 

47 

 
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

property and equipment annually and retires assets if they are no longer in service. Maintenance and repair costs are expensed as 
incurred.  

The Company’s RF and cryo generators are generally placed with customers that use the Company’s disposable products. The 

estimated useful lives of this equipment are based on anticipated usage by customers and the timing and impact of expected new 
technology rollouts by the Company and may change in a future period if the Company experiences changes in the usage of the 
equipment or introduces new technologies. Depreciation related to generators and other capital equipment is recorded in cost of 
revenue in the Consolidated Statements of Operations and Comprehensive Loss.  

The Company reviews property and equipment for impairment using its best estimates based on reasonable and supportable 

assumptions and projections of expected future cash flows. Property and equipment impairments recorded by the Company have not 
been significant. 

Intangible Assets—Intangible assets with determinable useful lives are amortized on a straight-line basis over the estimated 

periods benefited (see Note 5). 

Included in intangible assets is In Process Research and Development (IPR&D). The Company defines IPR&D as the value of 

acquired technology which has not yet reached technological feasibility. The primary basis for determining the technological 
feasibility is obtaining specific regulatory approvals. IPR&D is accounted for as an indefinite-lived intangible asset until completion 
or abandonment of the IPR&D project. Upon completion of the development project, the IPR&D will be amortized over its estimated 
useful life. If the IPR&D project is abandoned, the related IPR&D asset would be written off. The IPR&D asset represents an estimate 
of the fair value of the pre-market approval (PMA) that could result from the CONVERGE IDE clinical trial.  

The Company reviews intangible assets for impairment using its best estimates based on reasonable and supportable 

assumptions and projections. 

Goodwill—Goodwill represents the excess of purchase price over the fair value of the net assets acquired in business 
combinations. The Company tests goodwill for impairment annually on November 30, or more often if impairment indicators are 
present. The Company’s goodwill is accounted for in a single reporting unit representing the Company as a whole.  

Other Noncurrent Liabilities—Other noncurrent liabilities consist of contingent consideration recorded in business 

combinations, deferred revenues and other contractual obligations. Although the Company expects to settle a portion of the contingent 
consideration liability within the following year, the balance is included in noncurrent liabilities as such settlement is both required 
and expected to be made in shares of the Company’s common stock pursuant to the nContact merger agreement. 

Other Income (Expense)—Other income (expense) consists of foreign currency transaction gains and losses generated by 

settlements of intercompany balances denominated in Euros and invoices transacted in British Pounds. 

Taxes— Deferred income tax assets and liabilities are recognized for the future tax consequences attributable to differences 
between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and 
tax credit carryforwards. Deferred income tax assets and liabilities are measured using enacted tax rates expected to apply to taxable 
income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred income tax 
assets and liabilities from a change in tax rates is recognized in the period that includes the enactment date.  

The Company’s estimate of the valuation allowance for deferred income tax assets requires it to make significant estimates and 

judgments about its future operating results. Deferred income tax assets are reduced by valuation allowances if, based on the 
consideration of all available evidence, it is more-likely-than-not that some portion of the deferred income tax asset will not be 
realized. Significant weight is given to evidence that can be objectively verified. The Company evaluates deferred tax income assets 
on an annual basis to determine if valuation allowances are required by considering all available evidence. Deferred income tax assets 
are realized by having sufficient future taxable income to allow the related tax benefits to reduce taxes otherwise payable. The sources 
of taxable income that may be available to realize the benefit of deferred income tax assets are future reversals of existing taxable 
temporary differences, future taxable income, exclusive of reversing temporary differences and carryforwards, taxable income in 
carry-back years and tax planning strategies that are both prudent and feasible. In evaluating whether to record a valuation allowance, 
the applicable accounting standards deem that the existence of cumulative losses in recent years is significant objectively verifiable 
negative evidence that must be overcome by objectively verifiable positive evidence to avoid the need to record a valuation allowance. 
The Company has recorded a full valuation allowance against substantially all net deferred income tax assets as it is more-likely-than-
not that the benefit of the deferred income tax assets will not be recognized in future periods. 

A provision of The Patient Protection and Affordable Care Act enacted in 2010, as amended (PPACA), requires manufacturers 

of medical devices to pay an excise tax on all U.S. medical device sales. In December 2015, the U.S. government approved the 
suspension of the excise tax on medical device sales beginning January 1, 2016 through December 31, 2017. Then, in January 2018, 
the U.S. government approved an additional suspension of the excise tax on medical device sales from January 1, 2018 to December 

48 

 
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

31, 2019. The Company’s expense related to the medical device excise tax, which was recorded in cost of revenue, was $667 for the 
year ended December 31, 2015.  

Net Loss Per Share—Basic and diluted net loss per share is computed in accordance with FASB ASC 260 “Earnings Per Share” 

(ASC 260) by dividing the net loss by the weighted average number of common shares outstanding during the period. Since the 
Company has experienced net losses for all periods presented, net loss per share excludes the effect of 4,321, 4,320 and 4,255 stock 
options and restricted stock shares as of December 31, 2017, 2016 and 2015 because they are anti-dilutive. Therefore, the number of 
shares calculated for basic net loss per share is also used for the diluted net loss per share calculation.  

Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Loss)—In addition to net losses, the 

comprehensive loss includes foreign currency translation adjustments and unrealized gains and losses on investments.  

Accumulated other comprehensive income (loss) consisted of the following (net of tax):  

Total accumulated other comprehensive loss at beginning of period  
Unrealized losses on investments 
Balance at beginning of period  
Other comprehensive income before reclassifications  
Amounts reclassified from accumulated other comprehensive income (loss)  
    to other income (loss) 
Balance at end of period  
Foreign currency translation adjustment 
Balance at beginning of period  
Other comprehensive income before reclassifications  
Amounts reclassified from accumulated other comprehensive income (loss)  
    to other income (loss) 
Balance at end of period  
Total accumulated other comprehensive income (loss) at end of period  

2017 

2016 

2015 

 (468)   $ 

 (611)   $ 

 (348) 

 (21)   $ 
 15  

 —  
 (6)   $ 

 (39)   $ 
 18  

 —  
 (21)   $ 

 (447)   $ 
 660  

 (572)   $ 
 532  

 (173)  

 40   $ 
 34   $ 

 (407)  
 (447)   $ 
 (468)   $ 

 (54) 
 15 

 — 
 (39) 

 (294) 
 156 

 (434) 
 (572) 
 (611) 

  $ 

  $ 

  $ 

  $ 

  $ 
  $ 

Research and Development Costs— Research and development costs are expensed as incurred. These costs include 
compensation and other internal and external costs associated with the development of and research related to new and existing 
products or concepts, preclinical studies, clinical trials, healthcare compliance and regulatory affairs. 

Advertising Costs— The Company expenses advertising costs as incurred. Advertising expense was $900, $625 and $476 

during the years ended December 31, 2017, 2016 and 2015. 

Share-Based Compensation—The Company follows FASB ASC 718 “Compensation-Stock Compensation” (ASC 718) to 

record share-based compensation for all share-based payment awards, including stock options, restricted stock and stock purchases 
related to an employee stock purchase plan, based on estimated fair values. The Company’s share-based compensation expense 
recognized under ASC 718 for the years ended December 31, 2017, 2016 and 2015 was $14,615, $11,697 and $8,997.  

ASC 718 requires companies to estimate the fair value of share-based payment awards on the date of grant using an option-
pricing model. The value of the portion of the award that is ultimately expected to vest is recognized as expense over the requisite 
service periods in the Company’s Consolidated Statements of Operations and Comprehensive Loss. The expense has been reduced for 
estimated forfeitures. The Company estimates forfeitures at the time of grant and revises them, if necessary, in subsequent periods if 
actual forfeitures differ from those estimates.  

The Company estimates the fair value of time-based options on the date of grant using the Black-Scholes option-pricing model 
(Black-Scholes model). The Company’s determination of fair value is affected by the Company’s stock price, as well as assumptions 
regarding several subjective variables. These variables include, but are not limited to, the Company’s expected stock price volatility 
over the term of the awards and actual and projected employee stock option exercise behaviors. The fair value of market-based 
performance option grants is estimated at the date of grant using a Monte-Carlo simulation. The value of the portion of the awards that 
is ultimately expected to vest is recognized as expense over the requisite service periods in the Consolidated Statements of Operations 
and Comprehensive Loss. 

The Company estimates the fair value of restricted stock based upon the grant date closing market price of the Company’s 

common stock.  

49 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

The Company also has an employee stock purchase plan (ESPP) which is available to all eligible employees as defined by the 

plan document. Under the ESPP, shares of the Company’s common stock may be purchased at a discount. The Company estimates the 
number of shares to be purchased under the ESPP at the beginning of each purchase period based upon the fair value of the stock at 
the beginning of the purchase period using the Black-Scholes model and records estimated compensation expense during the period. 
Expense is adjusted at the time of stock purchase.  

Use of Estimates—The preparation of the financial statements in conformity with accounting principles generally accepted in 
the United States of America (GAAP) requires management to make estimates and assumptions that affect the reported amounts of 
assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of 
revenue and expense during the reporting period. Actual results could differ from those estimates.  

Fair Value Disclosures— The Company classifies cash and investments in U.S. government agencies and securities as Level 1 

within the fair value hierarchy. Accounts receivable, short-term other assets, accounts payable and accrued liabilities are also 
classified as Level 1. The carrying amounts of these assets and liabilities approximate their fair value due to their relatively short-term 
nature. Cash equivalents and investments in corporate bonds and commercial paper are classified as Level 2 within the fair value 
hierarchy. The fair value of fixed term debt is estimated by calculating the net present value of future debt payments at current market 
interest rates and is classified as Level 2. The book value of the Company’s fixed term debt approximates its fair value. Significant 
unobservable inputs with respect to the fair value measurement of the Level 3 contingent consideration liability are developed using 
Company data. When an input is changed, the corresponding valuation models are updated and the results are analyzed for 
reasonableness. See Note 3 – Fair Value for further information on fair value measurements.  

2. RECENT ACCOUNTING PRONOUNCEMENTS 

In May 2014 the FASB issued Accounting Standards Update (ASU) 2014-09, “Revenue from Contracts with Customers” (ASU 

2014-09), which requires an entity to recognize revenue for the transfer of goods or services equal to the amount that it expects to be 
entitled in exchange for those goods or services. ASU 2014-09 supersedes most current revenue recognition guidance. In July 2015 
the FASB deferred the effective date of ASU 2014-09 for entities reporting under U.S. GAAP from interim and annual reporting 
periods beginning after December 15, 2016 to interim and annual reporting periods beginning after December 15, 2017. A full 
retrospective or modified retrospective approach may be taken to adopt the guidance in the ASU. FASB ASU 2016-08, “Revenue 
from Contracts with Customers (Topic 606): Principal Versus Agent Considerations (Reporting Revenue Gross Versus Net)”, FASB 
ASU 2016-10, “Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing”, FASB 
ASU 2016-12, “Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients” and 
FASB ASU 2017-13, “Revenue Recognition (Topic 605), Revenue from Contracts with Customers (Topic 606), Leases (Topic 840), 
and Leases (Topic 842)” were issued to further refine the guidance in ASU 2014-09.  

The Company performed a comprehensive review of the requirements of ASU 2014-09. This review identified customer 
contracts and associated revenue streams within the scope of the new guidance by applying the five-step model of the new standard 
and comparing the results to current accounting to identify potential differences that would result from applying the requirements of 
the new standard. The Company’s revenue recognition related to product sales will remain substantially unchanged since the majority 
of the Company’s revenue arrangements consist of a single performance obligation related to the transfer of a promised good to a 
customer that allows the Company to recognize revenue at a point in time. The Company will adopt the new guidance as of January 1, 
2018 using the modified retrospective adoption method. The adoption of ASU 2014-09 will not have a material impact on the amount 
and timing of revenue recognized in the consolidated financial statements.  

In February 2016 the FASB issued ASU 2016-02, “Leases” (ASU 2016-02) which requires lessees to record most leases onto 

their balance sheet but recognize expenses on their income statement in a manner similar to today’s accounting. The guidance is 
effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Entities are required 
to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period 
in the financial statements. Full retrospective application is prohibited. The Company is evaluating the provisions of ASU 2016-02 to 
determine the impact on its consolidated financial position, results of operations and related disclosures.    

In May 2017 the FASB issued ASU 2017-09, “Compensation — Stock Compensation (Topic 718), Scope of Modification 
Accounting” (ASU 2017-09), which amends the scope of modification accounting for share-based payment arrangements. ASU 2017-
09 provides guidance on the types of changes to the terms or conditions of share-based payment awards to which an entity would be 
required to apply modification accounting under ASC 718. Specifically, an entity would not apply modification accounting if the fair 
value, vesting conditions, and classification of the awards are the same immediately before and after the modification. The new 
guidance also clarifies that a modification to an award could be significant and therefore require disclosure, even if modification 
accounting is not required. ASU 2017-09 is effective for annual reporting periods, including interim periods within those annual 
reporting periods, beginning after December 15, 2017. Early adoption is permitted, including adoption in any interim period. The 
Company will consider the new guidance in its accounting and financial reporting for modifications if and when they occur. 

50 

 
  
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

In February 2018, the FASB issued ASU 2018-02, “Reclassification of Certain Tax Effects From Accumulated Other 

Comprehensive Income (AOCI)” (ASU 2018-02) to address industry concerns related to the application of ASC 740, “Income Taxes” 
to certain provisions of the new tax reform legislation. Upon adopting ASU 2018-02, an entity is required to disclose (1) its 
accounting policy related to releasing income tax effects from AOCI, (2) whether it has elected to reclassify, to retained earnings in 
the statement of stockholders’ equity, the stranded tax effects in AOCI related to the new tax reform legislation and (3) if it has elected 
to reclassify to retained earnings the stranded tax effects in AOCI related to the new tax reform legislation, what the reclassification 
encompasses. The guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within those 
fiscal years. Early adoption is permitted. An entity will apply this guidance to each period in which the effect of the new tax reform 
legislation (or portion thereof) is recorded and may apply it either (1) retrospectively as of the date of enactment or (2) as of the 
beginning of the period of adoption. The Company is evaluating the provisions of ASU 2018-02 to determine the impact on its 
consolidated financial position, results of operations and related disclosures. 

3. FAIR VALUE 

FASB ASC 820, “Fair Value Measurements and Disclosures” (ASC 820), defines fair value as the exchange price that would be 
received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability 
in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must 
maximize the use of observable inputs and minimize the use of unobservable inputs. The fair value hierarchy is based on three levels 
of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value:  

(cid:2) 

(cid:2) 

(cid:2) 

Level 1—Quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the 
measurement date. An active market for the asset or liability is a market in which transactions for the asset or liability 
occur with sufficient frequency and volume to provide pricing information on an ongoing basis. The valuation under this 
approach does not entail a significant degree of judgment.  

Level 2—Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar 
assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated 
by observable market data for substantially the full term of the assets or liabilities. The valuation technique for the 
Company’s Level 2 assets is based on quoted market prices for similar assets from observable pricing sources at the 
reporting date.  

Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of 
the assets or liabilities. Unobservable inputs shall be used to measure fair value to the extent that observable inputs are not 
available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at the 
measurement date.  

The following table represents the Company’s fair value hierarchy for its financial assets and liabilities measured at fair value 

on a recurring basis as of December 31, 2017:  

Assets: 
Money market funds  
Commercial paper 
U.S. government agencies and securities  
Corporate bonds  
Total assets  
Liabilities: 
Acquisition-related contingent consideration  
Total liabilities  

  Quoted Prices   
in Active 

  Markets for 

Identical 
Assets 
(Level 1) 

Significant 
Other 
Observable 
Inputs 
(Level 2) 

Significant 
Other 
  Unobservable   

Inputs 
(Level 3) 

Total 

  $ 

  $ 

  $ 
  $ 

 —   $ 
 —  
 2,999  
 —  
 2,999   $ 

 12,774   $ 
 7,472  
 —  
 2,920  
 23,166   $ 

 —   $ 
 —  
 —  
 —  
 —   $ 

 12,774 
 7,472 
 2,999 
 2,920 
 26,165 

 —   $ 
 —   $ 

 —   $ 
 —   $ 

 37,098   $ 
 37,098   $ 

 37,098 
 37,098 

51 

 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

The following table represents the Company’s fair value hierarchy for its financial assets and liabilities measured at fair value 

on a recurring basis as of December 31, 2016: 

Assets: 
Money market funds  
Commercial paper  
U.S. government agencies and securities  
Corporate bonds  
Total assets  
Liabilities: 
Acquisition-related contingent consideration  
Total liabilities  

  Quoted Prices   
in Active 

  Markets for 

Identical 
Assets 
(Level 1) 

Significant 
Other 
Observable 
Inputs 
(Level 2) 

Significant 
Other 
  Unobservable   

Inputs 
(Level 3) 

Total 

  $ 

  $ 

  $ 
  $ 

 —   $ 
 —  
 7,000  
 —  
 7,000   $ 

 17,085   $ 
 5,996  
 1,529  
 8,276  
 32,886   $ 

 —   $ 
 —  
 —  
 —  
 —   $ 

 17,085 
 5,996 
 8,529 
 8,276 
 39,886 

 —   $ 
 —   $ 

 —   $ 
 —   $ 

 41,176   $ 
 41,176   $ 

 41,176 
 41,176 

There were no changes in the levels or methodology of measurement of financial assets and liabilities during the years ended 

December 31, 2017 and 2016. 

Derivative Instruments. Vested non-employee options historically issued by the Company were accounted for as derivative 
liabilities and remeasured at fair value through earnings at each reporting period until exercised or forfeited. All vested non-employee 
options were exercised as of December 31, 2015.  

The following table represents the Company’s Level 3 fair value measurements using significant other unobservable inputs for 

derivative instruments for each of the years ended December 31: 

Beginning Balance 

Total loss included in earnings  
Exercises  
Ending Balance 

2017 

2016 

2015 

 —   $ 
 —  
 —  
 —   $ 

 —   $ 
 —  
 —  
 —   $ 

 120 
 57 
 (177) 
 — 

  $ 

  $ 

Acquisition-Related Contingent Consideration. Contingent consideration arrangements under the nContact merger agreement 

obligate the Company to pay former shareholders of nContact for the following milestones, if achieved:  

(cid:2)  Trial Enrollment Milestone – $7,500 upon completion of patient enrollment in the CONVERGE IDE clinical trial. Such 

payment is due within 30 days following enrollment of the final patient.  

(cid:2)  Regulatory Milestone – up to $42,500 upon the completion of the CONVERGE IDE clinical trial and receiving a PMA 
from FDA for the EPi-Sense AF Guided Coagulation System and/or any other nContact product with an indication for 
symptomatic persistent Afib or similar or related indication. The full contingent consideration amount of $42,500 is only 
earned if such regulatory approvals are received on or before January 1, 2020. The potential contingent consideration is 
reduced by 8.33% (or one-twelfth) each month following January 2020, and is reduced to zero if the regulatory milestone 
is achieved after December 31, 2020. Any payment of the regulatory milestone contingent consideration is due within 30 
days following the receipt of the related PMA approval. 

(cid:2)  Commercial Milestone – for calendar years 2016 through 2019, nContact revenues in excess of specified target revenue 

amounts will result in contingent consideration equal to 1.5 times the revenues in excess of target. Payments of contingent 
consideration when the commercial milestone is achieved are due within 65 days of each calendar year end.  

Subject to the terms and conditions of the merger agreement, all contingent consideration must be paid first in shares of 

AtriCure common stock. The merger agreement limits the total number of shares of AtriCure common stock issued in connection with 
the acquisition to 5,660, of which 3,757 shares were issued at closing of the nContact acquisition on October 13, 2015. Since the 
acquisition, no payments of contingent consideration have been required or made. As of December 31, 2017 and 2016, contingent 
consideration is recorded in other noncurrent liabilities in the Consolidated Balance Sheets.  

52 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

The Company measures contingent consideration liabilities using unobservable inputs by applying an income approach, such as 
the discounted cash flow technique or the probability-weighted scenario method. Various key assumptions, such as the probability of 
achievement of the agreed milestones, projected revenues from acquisitions and the discount rate, are used in the determination of fair 
value of contingent consideration arrangements and are not observable in the market, thus representing a Level 3 measurement within 
the fair value hierarchy. Subsequent revisions to key assumptions, which impact the estimated fair value of contingent consideration 
liabilities, are reflected in the Consolidated Statements of Operations and Comprehensive Loss.  

The fair value of the nContact contingent consideration was remeasured as of December 31, 2017, resulting in a decrease in fair 

value of $4,078. This decrease in fair value is due primarily to changes in estimates related to the timing of achievement of the 
regulatory milestone as a result of actual enrollment in the CONVERGE IDE clinical trial in 2017, offset partially by an increase in 
forecasted revenues for 2018 and 2019 under the commercial milestone payment. The fair value of contingent consideration increased 
$969 during the year ended December 31, 2016 due primarily to a reduction in the discount period. Adjustments to fair value are 
recorded in selling, general and administrative expenses in the accompanying Consolidated Statements of Operations and 
Comprehensive Loss.  

The following table represents the company’s Level 3 fair value measurements using significant other unobservable inputs for 

acquisition-related contingent consideration for each of the years ended December 31: 

Beginning Balance 

Amounts acquired  
Changes in fair value included in earnings  

Ending Balance 

2017 
 41,176   $ 
 —  
 (4,078)  
 37,098   $ 

2016 
 40,207   $ 
 —  
 969  
 41,176   $ 

2015 

 — 
 40,207 
 — 
 40,207 

  $ 

  $ 

4. INVESTMENTS 

Investments as of December 31, 2017 consisted of the following:  

Corporate bonds  
U.S. government agencies and securities  
Commercial paper  

Total  

Investments as of December 31, 2016 consisted of the following:  

Corporate bonds  
U.S. government agencies and securities  
Commercial paper  

Total  

Cost Basis 

  $ 

  $ 

 2,925   $ 
 3,000  
 6,723  
 12,648   $ 

Unrealized 
Gains 
(Losses) 

 (5)   $ 
 (1)  
 —  
 (6)   $ 

Fair Value 

 2,920 
 2,999 
 6,723 
 12,642 

Cost Basis 

  $ 

  $ 

 8,284   $ 
 8,542  
 5,996  
 22,822   $ 

Unrealized 

Gains 

(Losses) 

 (8)   $ 

 (13)  
 —  
 (21)   $ 

Fair Value 

 8,276 
 8,529 
 5,996 
 22,801 

The Company has not experienced any significant realized gains or losses on its investments in the periods presented in the 
Consolidated Statements of Operations and Comprehensive Loss. Long term investments held by the Company at December 31, 2016 
had maturities between one and two years. 

53 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

5. INTANGIBLE ASSETS AND GOODWILL 

The following table provides a summary of the Company’s intangible assets at December 31:  

2017 

2016 

Fusion technology  
Clamp & probe technology  
SUBTLE access technology  
IPR&D  
Total  

Estimated 
Useful Life 
10 years 
3 years 
5 years 

Cost 

  Accumulated 
  Amortization   

Cost 

  $ 

  $ 

 9,242   $ 
 829    
 2,179    
 44,021    
 56,271   $ 

 3,697   $ 
 829    
 981    
 —    
 5,507   $ 

  Accumulated 
  Amortization 
 2,773 
 829 
 538 
 — 
 4,140 

 9,242   $ 
 829    
 2,179    
 44,021    
 56,271   $ 

Amortization expense related to intangible assets with definite lives, which excludes the IPR&D asset, was $1,367, $1,644 and 

$1,303 for the years ended December 31, 2017, 2016 and 2015. 

Future amortization expense related to intangible assets with definite lives is projected as follows:  

2018 
2019 
2020 
2021 
2022 
2023 and thereafter  

Total  

  $ 

  $ 

 1,367 
 1,367 
 1,235 
 924 
 925 
 925 
 6,743 

The following table provides a summary of the Company’s goodwill, which is not amortized, but rather tested annually for 

impairment: 

Net carrying amount as of December 31, 2015 
Additions (Impairments) 
Net carrying amount as of December 31, 2016 
Additions (Impairments) 
Net carrying amount as of December 31, 2017 

6. INVENTORIES 

Inventories consisted of the following at December 31:  

Raw materials  
Work in process  
Finished goods  
Inventories  

  $ 

  $ 

 105,257 
 — 
 105,257 
 — 
 105,257 

2017 

2016 

 7,755   $ 
 1,299  
 13,397  
 22,451   $ 

 5,719 
 1,221 
 10,720 
 17,660 

  $ 

  $ 

54 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

7. PROPERTY AND EQUIPMENT 

Property and equipment consisted of the following at December 31:  

Generators and other capital equipment   
Building under capital lease 
Computer and other office equipment  
Machinery, equipment and vehicles   
Furniture and fixtures  
Leasehold improvements  
Construction in progress  
Equipment under capital leases  

Total  

Less accumulated depreciation  
Property and equipment, net  

Estimated 
Useful Life 
1 - 3 years 
15 years 
3 years 
3 - 7 years 
3 - 7 years 
5 - 15 years 
N/A 
3 - 5 years 

  $ 

  $ 

2017 

2016 

 15,754   $ 
 14,250  
 5,873  
 4,576  
 4,366  
 3,636  
 1,810  
 221  
 50,486  
 (21,737)  
 28,749   $ 

 13,087 
 14,250 
 5,321 
 3,731 
 3,676 
 3,319 
 539 
 215 
 44,138 
 (14,143) 
 29,995 

Property and equipment depreciation expense was $7,761, $7,655 and $4,975 for the years ended December 31, 2017, 2016 and 

2015. Depreciation related to generators and other capital equipment was $3,574, $3,591 and $2,944 in 2017, 2016 and 2015. As of 
December 31, 2017 and 2016, the net carrying value of generators and other capital equipment was $4,656 and $5,692. 

8. ACCRUED LIABILITIES 

Accrued liabilities consisted of the following at December 31: 

Accrued commissions  
Accrued bonus  
Accrued payroll and employee-related expenses  
Sales returns and allowances 
Other accrued liabilities  
Accrued taxes and value-added taxes payable  
Accrued royalties  

Total  

9. INDEBTEDNESS 

2017 

2016 

 6,964   $ 
 4,726  
 4,097  
 1,169  
 695  
 634  
 626  
 18,911   $ 

 5,737 
 2,871 
 4,326 
 834 
 929 
 1,289 
 481 
 16,467 

  $ 

  $ 

Credit Facility. The Company has a Loan and Security Agreement (Loan Agreement) with Silicon Valley Bank (SVB). The 

Loan Agreement, as amended, restated and modified, includes a $25,000 term loan and $15,000 revolving line of credit, both which 
mature in April 2021. Borrowing availability under the revolving credit facility is based on the lesser of $15,000 or a borrowing base 
calculation as defined by the Loan Agreement. As of December 31, 2017, the Company had no borrowings under the revolving credit 
facility and had borrowing availability of $15,000. The revolving line of credit is subject to an annual commitment fee of $50, and any 
borrowings thereunder bear interest at the Prime Rate. Financing costs related to the revolving line of credit are included in other 
assets in the Consolidated Balance Sheets and amortized ratably over the term of the Loan Agreement.  

The term loan has a five-year term, with principal payments made ratably commencing eighteen months after the inception of 

the loan (November 2017) through the loan’s maturity date. The term loan accrues interest at the Prime Rate and is subject to an 
additional 4.0% fee on the original $25,000 principal amount at maturity or prepayment of the term loan. The Company is accruing the 
4.0% fee over the term of the Loan Agreement. As of December 31, 2017, the Company has accrued $337 of this fee and included it 
in the outstanding loan balance in the Consolidated Balance Sheets. Other financing costs related to the term loan are net against the 
outstanding loan balance in the Consolidated Balance Sheets and amortized ratably over the term of the Loan Agreement.  

The Loan Agreement also provides for certain prepayment and early termination fees, as well as establishes covenants related to 

liquidity, sales growth and a minimum cash balance, and includes other customary terms and conditions. Specified assets have been 
pledged as collateral. 

55 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

Effective February 23, 2018, the Company and SVB entered into a Loan and Security Agreement which amends and restates the 

Company’s credit facility with SVB. The agreement provides for a $40,000 term loan, and $20,000 revolving line of credit with an 
option to increase the revolving line of credit by an additional $20,000. The Loan and Security Agreement credit facility has a five-
year term, expiring February 2023. Principal payments of the term loan are to be made ratably commencing eighteen months after the 
inception of the loan through the loan’s maturity date. If the Company meets certain conditions, as specified by the agreement, the 
commencement of term loan principal payments may be deferred by an additional six months. The term loan accrues interest at the 
greater of the Prime Rate plus 3.75% or 8.25% and is subject to an additional 3.50% fee on the original $40,000 term loan principal 
amount at maturity. The revolving line of credit is subject to an annual facility fee of 0.33% of the revolving line of credit, and any 
borrowings bear interest at the greater of the Prime Rate and 4.50%. The Loan and Security Agreement also provides for certain 
prepayment and early termination fees, as well as establishes covenants related to sales growth, along with other customary terms and 
conditions similar to those in the Company’s current agreement with SVB. The proceeds from the agreement are expected to fund 
current and future operations of the Company. As a result of the refinancing, borrowings outstanding under the existing term loan 
agreement have been classified as long-term in the Consolidated Balance Sheet as of December 31, 2017. 

Capital Lease Obligations. As of December 31, 2017, the Company had capital leases for its corporate headquarters building 
and computer equipment that expire at various terms through 2030. Capital lease assets are depreciated over their estimated useful 
lives. As of December 31, 2017, the cost of the leased assets, both building and computer equipment, was $14,471. Accumulated 
amortization on the capital lease assets was $2,249.  

In connection with the terms of the Company’s corporate headquarters lease, a letter of credit in the amount of $1,250 was 

issued to the landlord of the building in October 2015. The letter of credit was renewed in June 2017 and remains outstanding as of 
December 31, 2017. 

Future maturities on capital lease obligations and debt, after consideration of the refinancing transaction in February 2018, are 

projected as follows: 

2018 
2019 
2020 
2021 
2022 
2023 and thereafter 
Total payments  
Imputed interest on capital lease obligations 
Net debt obligations, of which $561 is current and $36,861 is noncurrent 

  $ 

  $ 

  $ 

 1,468 
 3,755 
 8,305 
 8,309 
 8,335 
 14,379 
 44,551 
 (7,129) 
 37,422 

10. COMMITMENTS AND CONTINGENCIES 

Lease Commitments. The Company leases certain office and warehouse facilities and a vehicle under noncancelable operating 

leases that expire at various terms through 2022. Future minimum lease payments under non-cancelable operating leases are projected 
as follows:  

2018 
2019 
2020 
2021 
2022 
2023 and thereafter 

Total  

  $ 

  $ 

 965 
 927 
 737 
 413 
 306 
 — 
 3,348 

Rent expense was approximately $850, $1,250 and $1,515 in 2017, 2016, and 2015.  

Royalty Agreements. The Company has certain royalty agreements in place with terms that include payment of royalties based 
on product revenue from sales of specified current products. The current royalty agreements have effective dates as early as 2003 and 
terms ranging from eighteen years to at least twenty years. The royalties range from 3% to 5% of specified product sales. Parties to the 
royalty agreements have the right at any time to terminate the agreement immediately for cause. Royalty expense of $2,323, $1,895 
and $1,799 was recorded as part of cost of revenue for the years ended December 31, 2017, 2016 and 2015.  

56 

 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

Purchase Agreements. The Company enters into standard purchase agreements with certain vendors in the ordinary course of 

business. Outstanding commitments at December 31, 2017 were not significant. 

Legal. The Company may, from time to time, become a party to legal proceedings. Such matters are subject to many 
uncertainties and to outcomes of which the financial impacts are not predictable with assurance and that may not be known for 
extended periods of time. When management has assessed that a loss is probable and an amount can be reasonably estimated, the 
Company records a liability in the Consolidated Financial Statements. Costs associated with legal proceedings could have a material 
adverse effect on the Company’s future consolidated results of operations, financial position, or cash flows. 

On December 11, 2017, the Company received a Civil Investigative Demand (CID) from the U.S. Department of Justice stating 
that it is investigating the Company to determine whether the Company has violated the False Claims Act, relating to the promotion of 
certain medical devices related to the treatment of atrial fibrillation for off-label use and submitted or caused to be submitted false 
claims to certain federal and state health care programs for medically unnecessary healthcare services related to the treatment of atrial 
fibrillation. The CID covers the period from January 1, 2010 to the present and requires the production of documents and answers to 
written interrogatories. The Company had no knowledge of the investigation prior to receipt of the CID. The Company maintains 
rigorous policies and procedures to promote compliance with the False Claims Act and other applicable regulatory requirements, and 
is working with the U.S. Department of Justice to promptly respond to the CID. However, the Company cannot predict when the 
investigation will be resolved, the outcome of the investigation or its potential impact on the Company. 

11. INCOME TAXES 

The Company files federal, state, local and foreign income tax returns in jurisdictions with varying statutes of limitations. 

Income taxes are computed using the asset and liability method in accordance with FASB ASC 740, “Income Taxes”, under which 
deferred income taxes are provided for the temporary differences between the financial reporting basis and the tax basis of the 
Company’s assets and liabilities. Deferred taxes are measured using provisions of currently enacted tax laws. A valuation allowance 
against deferred tax assets is recorded when it is more likely than not that such assets will not be fully realized. The Company has 
recorded a full valuation allowance against substantially all net deferred tax assets as it is more likely than not that the benefit of the 
deferred tax assets will not be recognized in future periods. Tax credits are accounted for as a reduction of income taxes in the year in 
which the credit originates.  

On December 22, 2017, H.R.1, “An Act to Provide for Reconciliation Pursuant to Titles II and V of the Concurrent Resolution 

on the Budget for Fiscal Year 2018” (the Tax Reform Act) was enacted, and amends the Internal Revenue Code to reduce tax rates 
and modify policies, credits, and deductions for individuals and businesses. For businesses, U.S. GAAP requires resulting tax effects 
of accounting for the Tax Reform Act to be recorded in the reporting period of enactment. Also on December 22, 2017, the SEC staff 
issued Staff Accounting Bulletin No. 118 (SAB 118) to address the application of U.S. GAAP in situations when a registrant does not 
have the necessary information available, prepared, or analyzed in reasonable detail to complete the accounting for certain income tax 
effects of the Tax Reform Act.  

We have not completed our accounting for the tax effects of enactment of the Tax Reform Act. However, we have made a 

reasonable estimate of the effects on our existing deferred tax balances where possible, and accounted for material provisions of the 
Tax Reform Act as follows:  

Reduction of US federal corporate tax rate: The Tax Reform Act reduces the corporate tax rate from 34 to 21 percent, effective 
January 1, 2018. Consequently, the Company has recorded a reduction to its federal deferred tax assets of $29,480 with an offsetting 
reduction in its valuation allowance at December 31, 2017. In addition, the Company’s state deferred tax assets and corresponding 
valuation allowance have been adjusted to account for the impact of the federal rate change on state deferred taxes.  

Deemed Repatriation Transition Tax: The Tax Reform Act provides for a one-time "deemed repatriation" of accumulated 
foreign earnings for the year ended December 31, 2017. The Company does not anticipate a tax on the deemed repatriation as a result 
of its foreign deficits.  

Compensation and Shared-Based Payment Awards: The Tax Reform Act modifies the deductibility of covered employees’ 
compensation and eliminates the exclusion of performance-based compensation under IRC § 162(m), prospectively. The Tax Reform 
Act includes a transition rule that permits the continued exclusion of performance-based compensation paid pursuant to a written, 
binding contract which was in effect on November 2, 2017, and which was not modified in any material respect on or after such 
date. The Company has not completed its analysis of all of its relevant equity compensation agreements to determine if the transition 
rule will apply and the deferred tax implications of this provision.    

Corporate Alternative Minimum Tax (AMT): The repeal of AMT provides companies with the ability to obtain refunds of 
historic AMT credits. The Company has recorded a deferred tax benefit of $102 associated with release of its valuation allowance on 
its AMT credits.  

57 

 
 
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

Bonus Depreciation: The Tax Reform Act provides for 100 percent bonus depreciation on personal tangible property 
expenditures beginning September 27, 2017 through 2022. The bonus depreciation percentage is phased down from 100 percent 
beginning in 2023 through 2026. The Company is continuing to evaluate its bonus depreciation election based on an analysis of 
property eligible for 100 percent bonus depreciation and its net operating loss carryforwards.  

The Company expects to complete the accounting for the Tax Reform Act when the 2017 U.S. corporate income tax return is 

filed in 2018. The ultimate impact may differ materially from these provisional amounts due to additional analysis, changes in 
interpretations and assumptions the Company has made, additional regulatory guidance that may be issued, and actions the Company 
may take as a result of the Tax Reform Act.  

The detail of deferred tax assets and liabilities at December 31 is as follows:  

Deferred tax assets (liabilities): 

Net operating loss carryforward  
Research and development and AMT credit carryforwards, net  
Equity compensation  
Accruals and reserves  
Inventories  
Intangible assets  
Property and equipment, net  
Other, net  

Subtotal  

Less valuation allowance  

Total  

2017 

2016 

  $ 

 64,776   $ 
 5,339  
 6,955  
 874  
 588  
 (11,297)  
 (339)  
 179  
 67,075  
 (66,973)  

  $ 

 102   $ 

 84,056 
 5,446 
 8,406 
 914 
 1,503 
 (16,922) 
 (1,487) 
 66 
 81,982 
 (81,982) 
 — 

The Company’s provision for income taxes for each of the years ended December 31 is as follows:  

Current Tax Expense 

Federal 
State 
Foreign 

Total current tax expense 

Deferred Tax Expense 

Federal 
State 
Foreign 
Change in valuation allowance 
Total deferred tax expense 

Total tax expense 

2017 

2016 

2015 

  $ 

  $ 

 —   $ 
 44  
 72  
 116  

 18,485   $ 
 (1,337)  
 (2,241)  
 (15,009)  
 (102)  

  $ 

 14   $ 

 —   $ 
 32  
 8  
 40  

 2 
 34 
 — 
 36 

 (7,333)   $ 
 210  
 (1,177)  
 8,300  
 —  
40   $ 

 (7,154) 
 (398) 
 (955) 
 8,507 
 — 
36 

The Company has federal net operating loss carryforwards of $240,286 which have expirations between 2021 and 2038 and 
state net operating loss carryforwards of $147,841 with varying expirations from 2018 to 2038. At December 31, 2016, there were 
$2,816 of unrecognized deferred tax assets that arose from tax deductions for equity compensation in excess of compensation 
recognized for financial reporting during years when net operating losses were created. On January 1, 2017, the Company adopted 
ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting” and recognized $2,816 of previously unrecognized 
deferred tax assets with a corresponding increase in its valuation allowance. A portion of the Company’s federal and state net 
operating loss carryforwards are subject to certain limitations under Internal Revenue Code Sections 382 and 383. The Company has 
federal research and development credit carryforwards of $6,392 which have expirations between 2022 and 2038. Additionally, the 
Company has foreign net operating loss carryforwards of approximately $30,501 which have expirations between 2018 and 2027. 

58 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

The Company’s 2017, 2016 and 2015 effective income tax rates differ from the federal statutory rate as follows:  

Federal tax at statutory rate  
Federal tax rate change 
Federal R&D credit  
Federal NOL adjustment for ASU 
Valuation allowance  
State income taxes  
Foreign NOL rate change  
Foreign tax rate differential  
Permanent differences and other 
Effective tax rate  

2017 
 34.00  %   $ 

 (109.68) 
 (0.40) 
 10.48 
 55.84 
 4.81 
 1.30 
 (2.45) 
 6.05 
 (0.05)  %   $ 

 (9,139)  
 29,480  
 107  
 (2,816)  
 (15,009)  
 (1,292)  
 (348)  
 658  
 (1,627)  
 14  

2016 

 34.00  %   $   (11,322)  

 34.00  % 

2015 
 $ 

 (9,240) 

 2.89 

 (962)  

 3.23 

 (878) 

 (24.93) 
 (0.69) 
 (1.36) 
 (1.62) 
 (8.41) 
 (0.12)  %   $ 

 8,300  
 231  
 452  
 539  
 2,802  
 40  

 (31.30) 
 1.38 
 (2.02) 
 (1.99) 
 (3.43) 
 (0.13)  % 

 $ 

 8,507 
 (375) 
 549 
 542 
 931 
 36 

The Company’s pre-tax book loss for domestic and international operations, respectively, was $(19,409) and $(7,469) for 2017, 

($27,271) and ($6,027) for 2016 and ($21,157) and ($6,019) for 2015. The Company had undistributed earnings of foreign 
subsidiaries of approximately $107 at December 31, 2017. The Company does not consider these earnings as permanently reinvested 
and thus has recognized appropriate U.S. current and deferred taxes on such amounts. 

Federal, state, and local tax returns of the Company are routinely subject to examination by various taxing authorities. Federal 

income tax returns for periods beginning in 2015 are open for examination. Generally, state and foreign income tax returns for periods 
beginning in 2014 are open for examination. However, taxing authorities have the ability to adjust net operating loss and tax credit 
carryforwards from years prior to these periods. The Company has not recognized certain tax benefits because of the uncertainty of 
realizing the entire value of the tax position taken on income tax returns upon review by the taxing authorities.  

A reconciliation of the change in federal and state unrecognized tax benefits for 2017, 2016 and 2015 is presented below: 

Balance at the beginning of the year  
Increases (decreases) for prior year tax positions  
Increases (decreases) for current year tax positions 
Increases (decreases) related to settlements  
Decreases related to statute lapse  
Balance at the end of the year  

2017 

2016 

2015 

  $ 

  $ 

 3,175   $ 
 (2,018)  
 —  
 —  
 —  
 1,157   $ 

 1,982   $ 
 1,193  
 —  
 —  
 —  
 3,175   $ 

 1,982 
 — 
 — 
 — 
 — 
 1,982 

The Internal Revenue Service completed its review of the Company’s 2014 federal income tax return in February 2017. In 2017, 

the Company also completed a detailed analysis of R&D credit carryforwards for the tax years 2008 through 2016. As a result of this 
analysis, as well as completion of the IRS audit of the 2014 credit, the Company has reduced both the R&D credit carryforward and 
related unrecognized tax benefits by $2,018. The Company has not had to accrue any interest and penalties related to unrecognized 
income tax benefits as a result of offsetting of net operating losses. However, if the situation occurs, the Company will recognize 
interest and penalties within the income tax expense line in the Consolidated Statements of Operations and Comprehensive Loss and 
within the related tax liability line in the Consolidated Balance Sheets.  

There are no amounts included in the balance of unrecognized tax benefits at December 31, 2017, 2016 and 2015 that, if 
recognized, would affect the effective tax rate. Included in the balance of unrecognized tax benefits at December 31, 2017 are $1,157 
of tax benefits that, if recognized, would result in adjustments to other tax accounts, primarily deferred taxes and valuation allowance. 
The Company does not expect that its unrecognized tax benefits for research credits will significantly change within twelve months of 
December 31, 2017.  

12. CONCENTRATIONS 

During 2017, 2016 and 2015, approximately 13.2%, 14.4% and 12.9%, of the Company’s total net revenue was derived from its 

top ten customers. During 2017, 2016 and 2015 no individual customer accounted for more than 10% of the Company’s revenue.  

As of December 31, 2017 and 2016, 19.7% and 19.9% of the Company’s total accounts receivable balance was derived from its 

top ten customers. No individual customer accounted for more than 10% of the Company’s accounts receivable as of December 31, 
2017 and 2016. 

59 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
  
 
 
  
 
  
 
 
  
 
  
 
 
  
 
 
 
 
 
  
 
 
  
 
  
 
 
  
 
  
 
  
 
 
  
 
  
 
  
 
 
  
 
  
 
  
 
 
  
 
  
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

The Company maintains cash and cash equivalents balances at financial institutions which at times exceed FDIC limits. As of 

December 31, 2017, $21,360 of the cash and cash equivalents balance was in excess of the FDIC limits. 

13. EMPLOYEE BENEFIT PLANS 

The Company sponsors the AtriCure, Inc. 401(k) Plan (401(k) Plan), a defined contribution plan covering substantially all U.S. 

employees of the Company. Eligible employees may contribute pre-tax annual compensation up to specified maximums under the 
Internal Revenue Code. During 2017, 2016 and 2015 the Company made matching contributions of 50% of the first 6% of employee 
contributions to the 401(k) Plan. The Company’s matching contributions expensed during 2017, 2016 and 2015 were $1,367, $1,222 
and $1,007. Additional amounts may be contributed to the 401(k) Plan at the discretion of the Company’s Board of Directors, 
however, no such discretionary contributions were made during 2017, 2016 or 2015. The Company also provides retirement benefits 
for employees of AtriCure Europe and other foreign subsidiaries. Total contributions to retirement plans for these employees were 
$205, $101 and $133 in 2017, 2016 and 2015. 

14. EQUITY COMPENSATION PLANS 

The Company has two share-based incentive plans: the 2014 Stock Incentive Plan (2014 Plan) and the 2008 Employee Stock 

Purchase Plan (ESPP). 

Stock Incentive Plan 

Under the 2014 Plan, the Board of Directors may grant incentive stock options to Company employees and may grant 

nonstatutory stock options, restricted stock or stock appreciation rights to Company employees, directors and consultants. The 
administrator (currently the Compensation Committee of the Board of Directors) has the authority to determine the terms of any 
awards, including the number of shares subject to each award, the exercisability of the awards and the form of consideration. As of 
December 31, 2017, 10,249 shares of common stock had been reserved for issuance under the 2014 Plan and 1,128 shares were 
available for future grants.  

Options granted under the 2014 Plan generally expire ten years from the date of grant and generally vest at a rate of 25% on the 

first anniversary date of the grant and ratably each month thereafter over the following three years. Restricted stock awards granted 
under the 2014 Plan vest between one and four years from the date of grant. 

60 

 
  
  
 
 
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

Activity under the plans during 2017 was as follows: 

  Number of   
Shares 
  Outstanding  

 2,454   $ 
 65  
 (458)  
 (35)  
 2,026   $ 
 2,004   $ 
 1,766   $ 

  Number of   
Shares 
  Outstanding  

 1,416   $ 
 771  
 (331)  
 (11)  
 1,845   $ 

  Weighted 
Average 
Exercise 
Price 
 12.51  
 20.22  
 9.61  
 19.08  
 13.30  
 13.23  
 12.48  

  Weighted 
Average 
  Grant Date   
Fair Value   
 17.40  
 19.38  
 17.43  
 18.52  
 18.22  

  Number of   
Shares 
  Outstanding  

  Weighted 
Average 
Exercise 
Price 
 13.48  
 —  
 —  
 —  
 13.48  
 13.48  

 450   $ 
 —  
 —  
 —  
 450   $ 
 250   $ 

  Weighted 
Average 
  Remaining   
  Contractual   
Term 

Aggregate 
Intrinsic 
Value 

 5.62   $ 
 5.58   $ 
 5.20   $ 

 11,730 
 11,717 
 11,471 

  Weighted 
Average 
  Remaining   
  Contractual   
Term 

Aggregate 
Intrinsic 
Value 

 5.45   $ 
 5.45   $ 

 2,774 
 1,541 

Time-Based Stock Options 
Outstanding at January 1, 2017 
Granted 
Exercised 
Cancelled 
Outstanding at December 31, 2017 
Vested and expected to vest 
Exercisable at December 31, 2017 

Restricted Stock 
Outstanding at January 1, 2017 
Awarded 
Released 
Forfeited 
Outstanding at December 31, 2017 

Performance Stock Options 
Outstanding at January 1, 2017 
Granted 
Exercised 
Cancelled 
Outstanding at December 31, 2017 
Exercisable at December 31, 2017 

61 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

Activity under the plans during 2016 was as follows: 

Time-Based Stock Options 
Outstanding at January 1, 2016 
Granted 
Exercised 
Cancelled 
Outstanding at December 31, 2016 
Vested and expected to vest 
Exercisable at December 31, 2016 

Restricted Stock 
Outstanding at January 1, 2016 
Awarded 
Forfeited 
Released 
Outstanding at December 31, 2016 

Performance Stock Options 
Outstanding at January 1, 2016 
Granted 
Exercised 
Cancelled 
Outstanding at December 31, 2016 
Exercisable at December 31, 2016 

  Number of   
Shares 
  Outstanding  

 2,734   $ 
 215  
 (394)  
 (101)  
 2,454   $ 
 2,420   $ 
 1,914   $ 

  Number of   
Shares 
  Outstanding  

 1,071   $ 
 710  
 (70)  
 (295)  
 1,416   $ 

  Weighted 
Average 
Exercise 
Price 
 11.75  
 16.74  
 8.47  
16.66  
 12.51  
 12.42  
 11.01  

  Weighted 
Average 
  Grant Date   
Fair Value   
 17.30  
 16.35  
 17.31  
 14.49  
 17.40  

  Number of   
Shares 
  Outstanding  

  Weighted 
Average 
Exercise 
Price 
 13.48  
 —  
 —  
 —  
 13.48  
 13.48  

 450   $ 
 —  
 —  
 —  
 450   $ 
 250   $ 

  Weighted 
Average 
  Remaining   
  Contractual   
Term 

Aggregate 
Intrinsic 
Value 

 6.02   $ 
 5.99   $ 
 5.40   $ 

 18,295 
 18,228 
 16,897 

  Weighted 
Average 
  Remaining   
  Contractual   
Term 

Aggregate 
Intrinsic 
Value 

 6.45   $ 
 6.45   $ 

 3,074 
 1,708 

The total intrinsic value of options exercised during the years ended December 31, 2017, 2016 and 2015 was $5,121, $3,550 and 

$2,740. As a result of the Company’s full valuation allowance on its net deferred tax assets, no tax benefit was recognized related to 
the stock option exercises. The exercise price per share of each option is equal to the fair market value of the underlying share on the 
date of grant. For 2017, 2016 and 2015, $4,402, $3,337 and $2,703 in cash proceeds were included in the Company’s Consolidated 
Statements of Cash Flows as a result of the exercise of stock options. The total fair value of restricted stock vested during 2017, 2016 
and 2015 was $6,235, $5,102 and $2,767. The Company issues registered shares of common stock to satisfy stock option exercises 
and restricted stock grants.  

 The Company recognized expense related to time-based stock options and restricted stock for 2017, 2016, and 2015 of $13,908, 

$10,872 and $8,072. As of December 31, 2017 there was $23,331 of unrecognized compensation costs related to non-vested stock 
option and restricted stock arrangements ($2,197 relating to stock options and $21,134 relating to restricted stock). This cost is 
expected to be recognized over a weighted-average period of 2.2 years for stock options and 2.2 years for restricted stock.  

The Company has awarded 450 performance options to its President and Chief Executive Officer. The options expire ten years 

from the date of grant and vest in increments of 25 shares when the volume adjusted weighted average closing price of the common 
stock of the Company as reported by NASDAQ (or any other exchange on which the common stock of the Company is listed) for 30 
consecutive days equals or exceeds each of $10.00 per share, $12.50 per share, $15.00 per share, $17.50 per share, $20.00 per share, 
$25.00 per share, $30.00 per share, $35.00 per share and $40.00 per share. In accordance with FASB ASC 718, a Monte Carlo 
simulation was performed to estimate the fair values, vesting terms and vesting probabilities for each tranche of options. Expense 
calculated using these estimates is being recorded over the estimated vesting terms. The Company recognized expense related to the 
performance options during 2017, 2016 and 2015 of $43, $269 and $546. As of December 31, 2017, compensation costs related to 
non-vested performance options were fully recognized.  

62 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

Employee Stock Purchase Plan 

The ESPP is available to eligible employees as defined in the plan document. Under the ESPP, shares of the Company’s 
common stock may be purchased at a discount (currently 15%) of the lesser of the closing price of the Company’s common stock on 
the first trading day or the last trading day of the offering period. The offering period (currently six months) and the offering price are 
subject to change. Participants may not purchase more than $25 of the Company’s common stock in a calendar year and may not 
purchase a value of more than 3 shares during an offering period. On the first day of each fiscal year during the term of the ESPP, the 
number of shares available for sale under the ESPP may be increased by the lesser of (i) two percent (2%) of the Company’s 
outstanding shares of common stock as of the close of business on the last business day of the prior calendar year, not to exceed 600 
shares, or (ii) a lesser amount determined by the Board of Directors. Shares have not been added to the ESPP since 2011. As of 
December 31, 2017, there were 225 shares available for future issuance under the ESPP. Share-based compensation expense with 
respect to the ESPP was $664, $556 and $379 for 2017, 2016 and 2015. 

Valuation and Expense Information Under FASB ASC 718  

The following table summarizes share-based compensation expense related to employees, directors and consultants under FASB 

ASC 718 for 2017, 2016 and 2015. The expense was allocated as follows:  

Cost of revenue  
Research and development expenses  
Selling, general and administrative expenses  

Total  

2017 

2016 

2015 

  $ 

  $ 

 610   $ 

 2,052  
 11,953  
 14,615   $ 

 420   $ 

 1,825  
 9,452  
 11,697   $ 

 416 
 1,373 
 7,208 
 8,997 

In calculating compensation expense, the fair value of the options is estimated on the grant date using the Black-Scholes model 

including the following assumptions:  

Risk-free interest rate 
Expected life of option (years) 
Expected volatility of stock 
Weighted-average volatility 
Dividend yield 

2017 

2016 

2015 

1.75 - 2.12 %   
5.21 to 5.76  

1.06 - 2.02 %   
5.27 to 7.10  

1.30 - 1.96 % 
5.20 to 6.89  

    43.00 - 48.00 %    46.00 - 51.00 %    46.00 - 67.00 % 
 54.75  % 
0.00  % 

 48.87  %   
0.00  %   

 44.50  %   
0.00  %   

The Company’s estimate of volatility is based solely on the Company’s trading history over the expected option life. The risk-

free interest rate assumption is based upon the U.S. treasury yield curve at the time of grant for the expected option life. The Company 
estimates the expected terms of options using historical employee exercise behavior.  

The fair value of restricted stock awards is based on the market value of the Company’s stock on the date of the awards.  

Based on the assumptions noted above, the weighted average estimated grant date fair value per share of the stock options and 

restricted stock granted for 2017, 2016 and 2015 was as follows:  

Stock options 
Restricted stock 

2017 

2016 

2015 

  $ 

 8.60 
 19.38  

   $ 

 8.25 
 16.35  

   $ 

 11.12 
 17.82 

In calculating compensation expense for performance options, the fair value of the options was estimated on the grant dates 

using a Monte Carlo simulation including strike prices of $5.91 and $21.04, contractual terms of 10 years, expected volatility of 
69.60% and 60.50% and interest rates of 1.75% and 2.73%. The contractual term assumes that the performance options issued to the 
CEO of the Company will be held until expiration. Expected volatility was estimated based on the Company’s trading history over the 
expected option life. The expected rate of return assumption was based upon the U.S. treasury yield curve at the time of grant for the 
expected option life. 

63 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
 
 
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

Based on the assumptions noted above, the estimated grant date fair value per share of the performance options granted were as 

follows: 

Tranche 1 
Tranche 2 
Tranche 3 
Tranche 4 
Tranche 5 
Tranche 6 
Tranche 7 
Tranche 8 
Tranche 9 

  $ 

Price 
Target 

Fair Value of 
2012 Grant 

Fair Value of 
2014 Grant 

   $ 

 10.00 
 12.50  
 15.00  
 17.50  
 20.00  
 25.00  
 30.00  
 35.00  
 40.00  

   $ 

 4.32 
 4.30  
 4.27  
 4.23  
 4.19  
 4.10  
 4.01  
 3.92  
 3.83  

 14.74 
 14.74 
 14.74 
 14.74 
 14.73 
 14.73 
 14.71 
 14.67 
 14.61 

15. SEGMENT AND GEOGRAPHIC INFORMATION 

The Company evaluates reporting segments in accordance with FASB ASC 280, “Segment Reporting”. The Company develops, 
manufactures, and sells devices designed primarily for the surgical ablation of cardiac tissue and systems designed for the exclusion of 
the left atrial appendage. These devices are developed and marketed to a broad base of medical centers globally. Management 
considers all such sales to be part of a single operating segment. Revenue attributed to geographic areas is based on the location of the 
customers to whom products are sold. 

Revenue by geographic area was as follows:  

United States  
Europe  
Asia  
Other international  
Total international  
Total revenue  

United States revenue by product type was as follows: 

Open-heart ablation  
Minimally invasive ablation  
AtriClip devices 
Total ablation and AtriClip devices 
Valve tools  

Total United States  

International revenue by product type was as follows:  

Open-heart ablation  
Minimally invasive ablation  
AtriClip devices 
Total ablation and AtriClip devices 
Valve tools  

Total international  

64 

2017 
 138,387   $ 
 21,901  
 13,616  
 812  
 36,329  
 174,716   $ 

2016 
 122,385   $ 
 19,772  
 12,223  
 729  
 32,724  
 155,109   $ 

2015 
 102,212 
 17,180 
 9,510 
 853 
 27,543 
 129,755 

2017 
 64,517   $ 
 34,421  
 37,281  
 136,219  
 2,168  
 138,387   $ 

2016 
 58,050   $ 
 31,169  
 30,321  
 119,540  
 2,845  
 122,385   $ 

2015 
 53,541 
 21,564 
 24,377 
 99,482 
 2,730 
 102,212 

2017 
 20,718   $ 
 8,007  
 7,251  
 35,976  
 353  
 36,329   $ 

2016 
 20,189   $ 
 8,065  
 3,986  
 32,240  
 484  
 32,724   $ 

2015 
 16,287 
 7,964 
 2,868 
 27,119 
 424 
 27,543 

  $ 

  $ 

  $ 

  $ 

  $ 

  $ 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ATRICURE, INC. AND SUBSIDIARIES 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) 
(In Thousands, Except Per Share Amounts) 

The Company’s long-lived assets are located primarily in the United States, except for $957 as of December 31, 2017 and $931 

as of December 31, 2016, which are located primarily in Europe. 

16. SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) 

Operating Results: 

Revenue  

Gross profit  

Loss from operations  

Net loss  

March 31, 

June 30, 

September 30, 

December 31, 

2017 

2016 

2017 

2016 

2017 

2016 

2017 

2016 

For the Three Months Ended 

  $ 

 41,273   $ 

 35,940    $ 

 45,231    $ 

 39,672   $ 

 42,150    $ 

 38,340   $ 

 46,062   $ 

 41,157  

 30,008    

 25,914     

 32,554     

 28,818    

 30,918     

 27,472    

 32,683    

 (9,642)   

 (10,183)   

 (9,419)    

 (9,724)    

 (6,355)    

 (6,883)    

 (7,738)   

 (8,206)   

 (6,847)    

 (7,246)    

 (6,286)   

 (6,783)   

 (2,135)   

 (2,580)   

 28,897  

 (7,695) 

 (8,625) 

Net loss per share (basic and diluted)  

  $ 

 (0.32)  $ 

 (0.31)   $ 

 (0.21)   $ 

 (0.26)  $ 

 (0.22)   $ 

 (0.21)  $ 

 (0.08)  $ 

 (0.27) 

Amounts may not sum to consolidated totals for the full year due to rounding. Basic and diluted net loss per share is computed 
independently for each of the quarters presented. Therefore, the sum of the quarterly per share amounts will not necessarily equal the 
total for the year.  

65 

 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
   
   
 
  
 
SCHEDULE II  

VALUATION AND QUALIFYING ACCOUNTS  

Reserve for sales returns and allowances 
Year ended December 31, 2017 
Year ended December 31, 2016 
Year ended December 31, 2015 
Allowance for inventory valuation 
Year ended December 31, 2017 
Year ended December 31, 2016 
Year ended December 31, 2015 
Valuation allowance for deferred tax assets 
Year ended December 31, 2017 
Year ended December 31, 2016 
Year ended December 31, 2015 

Beginning 
Balance 

Additions 

Deductions 

Ending 
Balance 

  $ 

  $ 

  $ 

 834   $ 
 207  
 135  

 441   $ 
 634  
 78  

 106   $ 
 7  
 6  

 1,080   $ 
 843  
 522  

 1,004   $ 
 1,692  
 720  

 1,195   $ 
 1,455  
 399  

 1,169 
 834 
 207 

 889 
 1,080 
 843 

 81,982   $ 
 73,682  
 59,554  

 —   $ 

 8,300  
 14,128  

 15,009   $ 
 —  
 —  

 66,973 
 81,982 
 73,682 

66 

 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
ITEM 9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL 

DISCLOSURE  

None.  

ITEM 9A.  CONTROLS AND PROCEDURES 

Evaluation of Disclosure Controls and Procedures  

As defined in Rules 13(a)-15(e) and 15(d) -15(e) of the Securities Exchange Act of 1934 (Exchange Act), the Company’s 

management, with the participation of the President and Chief Executive Officer (the Principal Executive Officer) and Senior Vice 
President and Chief Financial Officer (the Principal Accounting and Financial Officer), has evaluated the effectiveness of the 
Company’s disclosure controls and procedures as of the end of the period covered by this report. Based on this evaluation, we 
concluded that, as of the end of the period covered by this report, our disclosure controls and procedures were effective in providing 
reasonable assurance that information required to be disclosed by us in the reports we file or submit under the Exchange Act is 
recorded, processed, summarized and reported within the time periods specified in the SEC’s forms and rules, and the material 
information relating to the Company is accumulated and communicated to management, including the President and Chief Executive 
Officer and the Senior Vice President and Chief Financial Officer, as appropriate, to allow timely decisions regarding required 
disclosures. 

Control systems, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that control 

objectives are met. Because of inherent limitations in all control systems, no evaluation of controls can provide assurance that all 
control issues and instances of fraud, if any, within a company will be detected. Additionally, controls can be circumvented by 
individuals, by collusion of two or more people or by management override. Over time, controls can become inadequate because of 
changes in conditions or the degree of compliance may deteriorate. Further, the design of any system of controls is based in part upon 
assumptions about the likelihood of future events. There can be no assurance that any design will succeed in achieving its stated goals 
under all future conditions. Because of the inherent limitations in any cost-effective control system, misstatements due to errors or 
fraud may occur and not be detected.  

Changes in Internal Control over Financial Reporting  

In the ordinary course of business, we routinely enhance our information systems by either upgrading current systems or 
implementing new ones. There were no changes in our internal control over financial reporting that occurred during the three months 
ended December 31, 2017 that have materially affected, or are reasonably likely to materially affect, our internal control over financial 
reporting.  

Management’s Annual Report on Internal Control Over Financial Reporting  

The management of the Company is responsible for establishing and maintaining adequate internal control over financial 
reporting. The 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 accounting 
principles generally accepted in the United States of America. Internal control over financial reporting includes 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 U.S. 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. The Company’s management assessed the 
effectiveness of the Company’s internal control over financial reporting as of December 31, 2017. No matter how well designed, 
because of inherent limitations in all control systems, internal control over financial reporting may not prevent or detect misstatements 
should they occur. 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 control procedures may deteriorate. In 
making this assessment, the Company’s management used the criteria set forth by the Committee of Sponsoring Organizations of the 
Treadway Commission in Internal Control-Integrated Framework (2013). Based on such assessment, management has concluded that 
the Company’s internal control over financial reporting was effective as of December 31, 2017.  

Deloitte & Touche LLP, the Company’s independent registered public accounting firm, has audited the consolidated financial 
statements included in this Annual Report on Form 10-K and, as part of its audit, has issued an attestation report on the effectiveness 
of the Company’s internal control over financial reporting. The attestation report can be found on the following page as part of this 
Item 9A.  

67 

 
 
 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 

To the stockholders and the Board of Directors of  
AtriCure, Inc. 
Mason, Ohio  

Opinion on Internal Control over Financial Reporting 

We have audited the internal control over financial reporting of AtriCure, Inc. and subsidiaries (the “Company”) as of December 31, 
2017, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring 
Organizations of the Treadway Commission (COSO). In our opinion, the Company maintained, in all material respects, effective 
internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control — Integrated 
Framework (2013) issued by COSO. 

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) 
(PCAOB), the consolidated financial statements as of and for the year ended December 31, 2017, of the Company and our report dated 
February 28, 2018, expressed an unqualified opinion on those financial statements. 

Basis for Opinion  

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of 
the effectiveness of internal control over financial reporting, included in the accompanying Management’s Annual Report on Internal 
Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial 
reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with 
respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities 
and Exchange Commission and the PCAOB. 

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit 
to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. 
Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness 
exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such 
other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our 
opinion. 

Definition and Limitations of Internal Control over Financial Reporting 

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of 
financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting 
principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the 
maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the 
company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in 
accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in 
accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding 
prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect 
on the financial statements. 

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections 
of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in 
conditions, or that the degree of compliance with the policies or procedures may deteriorate. 

/s/ Deloitte & Touche LLP 

Cincinnati, Ohio  
February 28, 2018 

68 

 
 
 
 
 
 
ITEM 9B.  OTHER INFORMATION  

None.  

PART III 

ITEM 10.  DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE  

The information required by this Item is incorporated by reference to the definitive proxy statement for our 2018 Annual 
Meeting of Stockholders to be filed with the Securities and Exchange Commission within 120 days after the end of 2017 (the “Proxy 
Statement”). 

ITEM 11.  EXECUTIVE COMPENSATION  

The information required by this Item is incorporated by reference to the Proxy Statement.  

ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED 

STOCKHOLDER MATTERS  

The following table summarizes information about our equity compensation plans as of December 31, 2017. 

Plan Category 
Equity compensation plans approved by 
security holders (3) 
Equity compensation plans not approved by 
security holders 
Total 
_________________________ 

Number of securities 
 to be issued upon  
exercise of  
outstanding options,  
warrants and rights (1) 

Weighted-average 
 exercise price of  
outstanding options,  
warrants and rights (2) 

Number of securities remaining 
 available for future issuance  
under equity compensation  
plans (excluding securities 
 reflected in column (a)) 

(a) 

(b) 

 (c) 

 4,320,704   $ 

 —  

 4,320,704   $ 

 13  

 —  
 13  

 1,127,972 

 — 
 1,127,972 

(1)  Represents outstanding stock options and restricted stock as of December 31, 2017. 

(2) 

The weighted average exercise price is calculated without taking into account restricted stock that will become issuable, without 
any cash consideration or other payment, as vesting requirements are achieved. 

(3)  Amounts include awards under our 2005 Equity Incentive Plan and 2014 Stock Incentive Plan but exclude shares purchased 

under our 2008 Employee Stock Purchase Plan. 

The remaining information required by this Item is incorporated by reference to the Proxy Statement.  

ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE  

The information required by this Item is incorporated by reference to the Proxy Statement.  

ITEM 14.  PRINCIPAL ACCOUNTANT FEES AND SERVICES  

The information required by this Item is incorporated by reference to the Proxy Statement.  

69 

 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
PART IV

ITEM 15.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(1) The financial statements required by Item 15(a) are filed in Item 8 of this Form 10-K. 

(2) The financial statement schedules required by Item 15(a) are filed in Item 8 of this Form 10-K. 

(3) The following exhibits are included in this Form 10-K or incorporated by reference in this Form 10-K:

Exhibit No.

Description

3.1

3.2

4.1

10.1#

10.2#

10.3#

10.4#

10.5#

10.6#

10.7#

10.8#

10.9

10.10

10.11#

10.12#

10.13#

10.14#

10.15

Second Amended and Restated Certificate of Incorporation (incorporated by reference to our Current Report on Form 8-
K, filed on May 27, 2016).

Fourth Amended and Restated Bylaws (incorporated by reference to our Current Report on Form 8-K filed on February
16, 2017).

Warrant to purchase AtriCure, Inc. common stock issued to Silicon Valley Bank on May 1, 2009 (incorporated by
reference to our Quarterly Report on Form 10-Q, filed on August 10, 2009).

Agreement, dated as of July 18, 2006, by and between AtriCure, Inc. and the Cleveland Clinic (incorporated by
reference to our Current Report on Form 8-K, filed on July 20, 2006).

Amendment No. 1, dated as of December 1, 2008, to Agreement dated as of July 18, 2006 by and between AtriCure,
Inc. and the Cleveland Clinic (incorporated by reference to our Annual Report on Form 10-K filed on March 16, 2009).

Amendment No. 2, effective as of December 28, 2009, to Agreement dated as of July 18, 2006 by and between
AtriCure, Inc. and the Cleveland Clinic (incorporated by reference to our Annual Report on Form 10-K filed on March
30, 2010).

Employment Agreement, dated as of January 16, 2012, between AtriCure, Inc. and Andrew L. Lux (incorporated by
reference to our Current Report on Form 8-K, filed on January 17, 2012).

Employment Agreement, dated as of November 1, 2012, between AtriCure, Inc. and Michael H. Carrel (incorporated by
reference to our Current Report on Form 8-K, filed on November 1, 2012).

2005 Equity Incentive Plan, as amended on September 19, 2007 and on March 6, 2013 (incorporated by reference to our
Annual Report on Form 10-K filed on March 8, 2013).

2008 Employee Stock Purchase Plan (incorporated by reference to Exhibit 10.1 to the Registrant’s Form S-8
Registration Statement (File No. 333-152013) filed on June 30, 2008).

Form of Change in Control Agreement between AtriCure and AtriCure Executive Officers (incorporated by reference to
our Annual Report on Form 10-K filed on March 8, 2013).

Loan and Security Agreement dated as of February 23, 2018 by and among Silicon Valley Bank, AtriCure, Inc.,
AtriCure, LLC, Endoscopic Technologies, LLC and nContact Surgical, LLC (incorporated by reference to our Current 
Report on Form 8-K, filed on February 26, 2018).

Lease Agreement Dated August 20, 2014 between LM-VP AtriCure, LLC, as Landlord, and AtriCure, Inc., as Tenant 
(incorporated by reference to our Current Report on Form 8-K, filed on August 25, 2014).

AtriCure, Inc. 2014 Stock Incentive Plan (Amended and Restated as of May 24, 2017) (incorporated by reference to our
Proxy Statement on Schedule 14A, filed on April 12, 2017).

Form of Restricted Stock Award Agreement under the Amended and Restated AtriCure, Inc. 2014 Stock Incentive Plan
(incorporated by reference to our Quarterly Report on Form 10-Q, filed on October 31, 2014).

Form of Stock Option Award Agreement for Executive Officers under the Amended and Restated AtriCure, Inc. 2014
Stock Incentive (incorporated by reference to our Quarterly Report on Form 10-Q, filed on October 31, 2014).

Form of Stock Option Award Agreement for Non-Employee Directors under the Amended and Restated AtriCure, Inc.
2014 Stock Incentive Plan (incorporated by reference to our Quarterly Report on Form 10-Q, filed on October 31,
2014).

Merger Agreement dated as of October 4, 2015 among nContact Surgical, Inc., AtriCure, Inc., Portal Merger Sub, Inc.,
Second Portal Merger Sub, LLC and WRYP Stockholder Services, LLC, as Representative of nContact stockholders
(incorporated by reference to our Current Report on Form 8-K, filed on October 5, 2015).

70

Exhibit No.

10.16

Description
First Loan Modification Agreement, dated as of February 27, 2017, between Silicon Valley Bank and AtriCure, Inc.
(incorporated by reference to our Annual Report on Form 10-K filed on March 8, 2017).

12.1

21

23.1

31.1

31.2

32.1

32.2

Ratio of Earnings to Fixed Charges (incorporated by reference to our Registration Statement on Form S-3 (Registration
No. 333-212088), filed on June 17, 2016).

Subsidiaries of the Registrant.

Consent of Deloitte & Touche LLP.

Rule 13a-14(a) Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Rule 13a-14(a) Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 

Certification pursuant to 18 U.S.C. Section 1350 by the Chief Executive Officer, as adopted, pursuant to Section 906 of
the Sarbanes-Oxley Act of 2002. 

Certification pursuant to 18 U.S.C. Section 1350 by the Chief Financial Officer, as adopted, pursuant to Section 906 of
the Sarbanes-Oxley Act of 2002.

101.INS

XBRL Instance Document

101.SCH XBRL Taxonomy Extension Schema Document 

101.CAL XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF XBRL Taxonomy Definition Linkbase Document

101.LAB XBRL Taxonomy Extension Label Linkbase Document 

101.PRE

XBRL Taxonomy Extension Presentation Linkbase Document 

_________________________

# Compensatory plan or arrangement. 

ITEM 16. FORM 10-K SUMMARY

Not provided

71

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Form 10-K to be signed 

on our behalf by the undersigned, thereunto duly authorized.  

SIGNATURES 

Date: February 28, 2018 

Date: February 28, 2018 

AtriCure, Inc. 
(REGISTRANT) 

/s/ Michael H. Carrel 
Michael H. Carrel 
President and Chief Executive Officer 
(Principal Executive Officer) 

/s/ M. Andrew Wade 
M. Andrew Wade 
Senior Vice President and Chief Financial Officer 
(Principal Accounting and Financial Officer) 

KNOW ALL MEN AND WOMEN BY THESE PRESENTS, that each person whose signature appears below constitutes and 
appoints Michael H. Carrel, his attorney-in-fact, with the power of substitution, for him in any and all capacities, to sign any and all 
amendments to this Form 10-K, and to file the same, with exhibits thereto and other documents in connection therewith, with the U.S. 
Securities and Exchange Commission, granting unto said attorneys-in-fact, and each of them, full power and authority to do and 
perform each and every act and thing requisite and necessary to be done therewith, as fully to all intents and purposes as he might or 
could do in person, hereby ratifying and confirming all that said attorneys-in-fact, and any of them or his substitute or substitutes, may 
do or cause to be done by virtue thereof.  

Pursuant to the requirements of the Securities Exchange Act of 1934, this Form 10-K has been signed by the following persons 

on behalf of the registrant and in the capacities indicated on February 28, 2018.  

Signature 

/s/ Richard M. Johnston 
Richard M. Johnston 

/s/ Michael H. Carrel 
Michael H. Carrel 

/s/ M. Andrew Wade 
M. Andrew Wade 

/s/ Mark A. Collar 
Mark A. Collar 

/s/ Scott W. Drake 
Scott W. Drake 

/s/ Regina E. Groves 
Regina E. Groves 

/s/ B. Kristine Johnson 
B. Kristine Johnson 

/s/ Elizabeth D. Krell 
Elizabeth D. Krell 

/s/ Mark R. Lanning 
Mark R. Lanning 

/s/ Sven A. Wehrwein 
Sven A. Wehrwein 

/s/ Robert S. White 
Robert S. White 

Title(s) 

Richard M. Johnston 
Chairman of the Board 

Michael H. Carrel 
Director, President and Chief Executive Officer 
(Principal Executive Officer) 

M. Andrew Wade 
Senior Vice President and Chief Financial Officer 
(Principal Accounting and Financial Officer) 

Mark A. Collar 
Director 

Scott W. Drake 
Director 

Regina E. Groves 
Director 

B. Kristine Johnson 
Director 

Elizabeth D. Krell 
Director 

Mark R. Lanning 
Director 

Sven A. Wehrwein 
Director 

Robert S. White 
Director 

72 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
125,000+

AtriClip Milestone

62,000+

Patients Served

2017 HRS & STS

Guidelines

100+

Patients Enrolled

AF Connect

Launched International 

Physician Training Website

Concomitant Surgical Ablation

2017 Society of Thoracic Surgeons (STS) Guidelines Summary

 Ann Thorac Surg 2017;103:329–41.

The Society of Thoracic Surgeons 2017 Clinical Practice 

Guidelines for the Surgical Treatment of Atrial Fibrillation

Vinay Badhwar, MD, J. Scott Rankin, MD, Ralph J. Damiano, Jr., MD, A. Marc Gillinov, MD, 

Faisal G. Bakaeen, MD, James R. Edgerton, MD, Jonathan M. Philpott, MD, 

Patrick M. McCarthy, MD, Steven F. Bolling, MD, Harold G. Roberts, MD, 

Surgical Atrial Fibrillation Ablation

Vinod H. Thourani, MD, Richard J. Shemin, MD, Scott Firestone, MS, Niv Ad, MD.

CLASS OF RECOMMENDATION – I

2017 HRS/EHRA/ECAS/APHRS/SOLAECE Expert Consensus Statement 

CABG

Heart Team

MVR

Calkins et al, Heart Rhythm (2017), doi: 10.1016/j.hrthm.2017.05.012.

AVR

AVR + CABG

•

•

Surgical ablation for AF can be performed without additional risk of operative mortality or

2017 HRS/EHRA/ECAS/APHRS/SOLAECE Expert 

major morbidity, and is RECOMMENDED at the time of concomitant mitral operations

to restore sinus rhythm. (Class I, Level A)

Consensus Statement on Catheter and  

Surgical ablation for AF can be performed without additional operative risk of mortality

or major morbidity, and is RECOMMENDED at the time of  concomitant isolated aortic

Surgical Ablation of Atrial Fibrillation

valve replacement, isolated coronary artery bypass graft surgery, and aortic valve

Hugh Calkins, MD (Chair), Gerhard Hindricks, MD (Vice-Chair), Riccardo Cappato, MD (Vice-Chair), 

replacement plus coronary artery bypass graft operations to restore sinus rhythm.

Young-Hoon Kim, MD, PhD (Vice-Chair), Eduardo Saad, MD, PhD (Vice-Chair) et al.

(Class I, Level B nonrandomized)

•

In the treatment of AF, multidisciplinary heart team assessment, treatment planning,

CLASS OF RECOMMENDATION – I

and long-term follow-up can be USEFUL AND BENEFICIAL to optimize patient outcomes.

(Class I, Level C expert opinion)

CLASS OF RECOMMENDATION – IIA

Mitral Valve

Aortic Valve

AtriClip PRO·V™ Device

CABG

Maze

LAAM

• MVR: Surgical ablation of AF is RECOMMENDED for paroxysmal, persistent, and long-

standing (LS) persistent patients who are symptomatic AF refractory or intolerant to at least

Stand-Alone

one Class 1 or 3 antiarrhythmic medication during concomitant open procedures.

Product Launch

•

(COR: I, LOE: B-NR)

Surgical ablation for symptomatic AF in the absence of structural heart disease that

• MVR: Surgical ablation of AF is RECOMMENDED for paroxysmal, persistent, and LS

is refractory to class I/III antiarrhythmic drugs or catheter-based therapy or both is

persistent patients who are symptomatic AF prior to initiation of antiarrhythmic therapy

REASONABLE as a primary stand-alone procedure, to restore sinus rhythm. (Class IIA,

with a class 1 or 3 antiarrhythmic medication during concomitant open procedures.

Level B randomized)

•

(COR: I, LOE: B-NR)

Surgical ablation for symptomatic persistent or longstanding persistent AF in the absence

• CABG and AVR: Surgical ablation of AF is RECOMMENDED for paroxysmal, persistent, and

of structural heart disease is REASONABLE, as a stand-alone procedure using the Cox-

LS persistent patients who are symptomatic AF refractory or intolerant to at least one Class 1

Maze III/IV lesion set compared with pulmonary vein isolation alone. (Class IIA, Level B

or 3 antiarrhythmic medication during concomitant closed procedures.

nonrandomized)

(COR: I, LOE: B-NR)

CLASS OF RECOMMENDATION – IIA

• CABG and AVR: Surgical ablation of AF is REASONABLE for paroxysmal, persistent, and

LS persistent patients who are symptomatic AF prior to initiation of antiarrhythmic therapy

with a class 1 or 3 antiarrhythmic medication during concomitant closed procedures.

(COR: IIA, LOE: B-NR)

•

Stand-Alone and Hybrid: Surgical ablation of AF is REASONABLE for persistent, and LS

persistent patients who are symptomatic AF refractory or intolerant to at least one Class 1 or

3 antiarrhythmic medication and have failed one or more attempts at catheter ablation or

prefer a surgical approach. (COR: IIA, LOE: B-NR)

CORPORATE INFORMATION

BOARD OF DIRECTORS

Richard M. Johnston
Chairman of the Board  
Retired Member,  
Camden Partners Holdings, LLC

Michael H. Carrel
AtriCure, Inc.

Mark A. Collar
Retired Division President
The Procter & Gamble Co.

Scott W. Drake
Denver, CO.

Regina E. Groves
REVA Medical, Inc.

B. Kristine Johnson
Affinity Capital Management

Elizabeth D. Krell, Ph.D.
JK Consultants

Mark R. Lanning
Lanning CPA Group

Sven A. Wehrwein
Independent Financial Consultant

Robert S. White
Entellus Medical

MANAGEMENT

Michael H. Carrel
President and Chief Executive Officer

M. Andrew Wade
Senior Vice President and  
Chief Financial Officer

Douglas J. Seith
Chief Operating Officer

Salvatore (Sam) Privitera
Chief Technology Officer

Tonya A. Austin
Vice President, Human Resources

Karl S. Dahlquist
Vice President, Legal and Regulatory and
Chief Compliance Officer

Justin J. Noznesky
Senior Vice President, Marketing and  
Business Development

Vinayak Doraiswamy
Senior Vice President of Clinical, 
Regulatory, and Scientific Affairs

INVESTOR RELATIONS
CONTACT

M. Andrew Wade
Senior Vice President and
Chief Financial Officer

ANNUAL MEETING

May 22, 2018
9:00 a.m. (EDT)
AtriCure, Inc.
7555 Innovation Way
Mason, Ohio 45040

CORPORATE
HEADQUARTERS

AtriCure, Inc.
7555 Innovation Way
Mason, Ohio 45040
T 513.755.4100
F 513.755.4108

www.atricure.com  

FORWARD LOOKING STATEMENTS
Our public communications and other reports may contain “forward-looking statements” – that is, statements related to future events 
that by their nature address matters that are uncertain. For details on the uncertainties that may cause our actual results to be materially 
different than those expressed in our forward-looking statements, visit http://www.atricure.com/fls as well as our Annual Reports on 
Form 10-K and Quarterly Reports on Form 10-Q which contain risk factors. We do not undertake to update our forward-looking statements. 
Our public communications and other reports may also include forward-looking projected financial information that is based on current 
estimates and forecasts. Actual results could differ materially.

FORM 10-K
Our Annual Report on Form 10-K is available on the internet by accessing AtriCure’s website at www.atricure.com. A copy of the Company’s 
most recent Form 10-K, as filed with the US Securities and Exchange Commission, or SEC, (including consolidated financial statements and 
the notes and schedules thereto), will be provided to stockholders upon written request to the Company’s Investor Relations Contact.

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7555 Innovation Way
Mason, Ohio 45040
+1 (513) 755-4100
www.atricure.com

NASDAQ:ATRC

2017 ANNUAL REPORT