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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

FORM 10-Q

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended March 31,June 30, 2022
or
¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from_____________to_____________
Commission File Number 000-51470

AtriCure, Inc.
(Exact name of Registrant as specified in its charter)

Delaware34-1940305
(State or other jurisdiction of
incorporation)
(IRS Employer
Identification No.)
7555 Innovation Way
Mason, OH 45040
(Address of principal executive offices)
(513) 755-4100
(Registrant’s telephone number, including area code)
(Former name, former address and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, $.001 par valueATRCNASDAQ
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 x No ¨
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes x No ¨
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large Accelerated FilerxAccelerated Filer¨Emerging growth company¨
Non-Accelerated Filer¨Smaller reporting company¨
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act: ¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act): YES ¨ NO x
Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.
ClassOutstanding at May 2,August 1, 2022
Common Stock, $.001 par value46,287,94446,424,652


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PART I. FINANCIAL INFORMATION
Item 1. Financial Statements
ATRICURE, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATED BALANCE SHEETS
(In Thousands, Except Per Share Amounts)
(Unaudited)
March 31,
2022
December 31,
2021
June 30,
2022
December 31,
2021
AssetsAssetsAssets
Current assets:Current assets:Current assets:
Cash and cash equivalentsCash and cash equivalents$28,141$43,654Cash and cash equivalents$54,556 $43,654 
Short-term investmentsShort-term investments83,25675,436Short-term investments63,898 75,436 
Accounts receivable, less allowance for credit losses of $1,096Accounts receivable, less allowance for credit losses of $1,09640,87833,021Accounts receivable, less allowance for credit losses of $1,09641,488 33,021 
InventoriesInventories40,76238,964Inventories41,292 38,964 
Prepaid and other current assetsPrepaid and other current assets6,5705,001Prepaid and other current assets4,932 5,001 
Total current assetsTotal current assets199,607196,076Total current assets206,166 196,076 
Long-term investmentsLong-term investments70,514104,338Long-term investments64,295 104,338 
Property and equipment, netProperty and equipment, net32,86731,409Property and equipment, net36,053 31,409 
Operating lease right-of-use assetsOperating lease right-of-use assets4,5094,761Operating lease right-of-use assets4,241 4,761 
Intangible assets, netIntangible assets, net42,02042,992Intangible assets, net41,049 42,992 
GoodwillGoodwill234,781234,781Goodwill234,781 234,781 
Other noncurrent assetsOther noncurrent assets685955Other noncurrent assets804 955 
Total AssetsTotal Assets$584,983$615,312Total Assets$587,389 $615,312 
Liabilities and Stockholders’ EquityLiabilities and Stockholders’ EquityLiabilities and Stockholders’ Equity
Current liabilities:Current liabilities:Current liabilities:
Accounts payableAccounts payable$20,294$18,597Accounts payable$23,721 $18,597 
Accrued liabilitiesAccrued liabilities25,32136,092Accrued liabilities30,775 36,092 
Current maturities of leasesCurrent maturities of leases1,7601,756Current maturities of leases1,820 1,756 
Total current liabilitiesTotal current liabilities47,37556,445Total current liabilities56,316 56,445 
Long-term debtLong-term debt59,84859,741Long-term debt59,954 59,741 
Finance lease liabilitiesFinance lease liabilities9,84510,082Finance lease liabilities9,603 10,082 
Operating lease liabilitiesOperating lease liabilities3,8654,068Operating lease liabilities3,591 4,068 
Other noncurrent liabilitiesOther noncurrent liabilities1,2251,220Other noncurrent liabilities1,215 1,220 
Total LiabilitiesTotal Liabilities122,158131,556Total Liabilities130,679 131,556 
Commitments and contingencies (Note 8)Commitments and contingencies (Note 8)00Commitments and contingencies (Note 8)00
Stockholders’ Equity:Stockholders’ Equity:Stockholders’ Equity:
Common stock, $0.001 par value, 90,000 shares authorized and 46,268 and 46,016 issued and outstanding4646
Common stock, $0.001 par value, 90,000 shares authorized and 46,423 and 46,016 issued and outstandingCommon stock, $0.001 par value, 90,000 shares authorized and 46,423 and 46,016 issued and outstanding46 46 
Additional paid-in capitalAdditional paid-in capital761,580764,811Additional paid-in capital771,185 764,811 
Accumulated other comprehensive lossAccumulated other comprehensive loss(3,465)(948)Accumulated other comprehensive loss(4,344)(948)
Accumulated deficitAccumulated deficit(295,336)(280,153)Accumulated deficit(310,177)(280,153)
Total Stockholders’ EquityTotal Stockholders’ Equity462,825483,756Total Stockholders’ Equity456,710 483,756 
Total Liabilities and Stockholders’ EquityTotal Liabilities and Stockholders’ Equity$584,983$615,312Total Liabilities and Stockholders’ Equity$587,389 $615,312 
See accompanying notes to condensed consolidated financial statements.
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ATRICURE, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS
(In Thousands, Except Per Share Amounts)
(Unaudited)
Three Months Ended
March 31,
Three Months Ended
June 30,
Six Months Ended
June 30,
202220212022202120222021
RevenueRevenue$74,576 $59,275 Revenue$84,529 $71,376 $159,105 $130,651 
Cost of revenueCost of revenue18,981 14,735 Cost of revenue21,010 $17,298 39,991 32,033 
Gross profitGross profit55,595 44,540 Gross profit63,519 $54,078 119,114 98,618 
Operating expenses:Operating expenses:Operating expenses:
Research and development expensesResearch and development expenses13,629 11,217 Research and development expenses14,791 12,197 28,420 23,414 
Selling, general and administrative expensesSelling, general and administrative expenses56,116 49,208 Selling, general and administrative expenses62,388 56,958 118,504 106,166 
Total operating expensesTotal operating expenses69,745 60,425 Total operating expenses77,179 69,155 146,924 129,580 
Loss from operationsLoss from operations(14,150)(15,885)Loss from operations(13,660)(15,077)(27,810)(30,962)
Other income (expense):Other income (expense):Other income (expense):
Interest expenseInterest expense(1,000)(1,189)Interest expense(1,101)(1,197)(2,101)(2,386)
Interest incomeInterest income116 134 Interest income76 103 192 237 
OtherOther(93)54 Other(111)(14)(204)40 
Loss before income tax expenseLoss before income tax expense(15,127)(16,886)Loss before income tax expense(14,796)(16,185)(29,923)(33,071)
Income tax expenseIncome tax expense56 31 Income tax expense45 66 101 97 
Net lossNet loss$(15,183)$(16,917)Net loss$(14,841)$(16,251)$(30,024)$(33,168)
Basic and diluted net loss per shareBasic and diluted net loss per share$(0.33)$(0.38)Basic and diluted net loss per share$(0.32)$(0.36)$(0.66)$(0.74)
Weighted average shares outstanding—basic and dilutedWeighted average shares outstanding—basic and diluted45,528 44,632 Weighted average shares outstanding—basic and diluted45,692 45,035 45,610 44,834 
Comprehensive loss:Comprehensive loss:Comprehensive loss:
Unrealized loss on investmentsUnrealized loss on investments$(2,339)$(31)Unrealized loss on investments$(449)$(132)$(2,788)$(163)
Foreign currency translation adjustmentForeign currency translation adjustment(178)(299)Foreign currency translation adjustment(430)63 (608)(236)
Other comprehensive lossOther comprehensive loss(2,517)(330)Other comprehensive loss(879)(69)(3,396)(399)
Net lossNet loss(15,183)(16,917)Net loss(14,841)(16,251)(30,024)(33,168)
Comprehensive loss, net of taxComprehensive loss, net of tax$(17,700)$(17,247)Comprehensive loss, net of tax$(15,720)$(16,320)$(33,420)$(33,567)
See accompanying notes to condensed consolidated financial statements.
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ATRICURE, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY
(In Thousands)
(Unaudited)
Three-Month Period Ended June 30, 2021
Common Stock
Additional
Paid-in
Capital
Accumulated
Deficit
Accumulated
Other
Comprehensive
Income (Loss)
Total
Stockholders’
Equity
Shares
Amount
Balance—March 31, 2021Balance—March 31, 202145,623 $46 $738,484 $(347,269)$(18)$391,243 
Impact of equity compensation plansImpact of equity compensation plans258 — 10,160 — — 10,160 
Other comprehensive lossOther comprehensive loss— — — — (69)(69)
Net lossNet loss— — — (16,251)— (16,251)
Balance—June 30, 2021Balance—June 30, 202145,881 $46 $748,644 $(363,520)$(87)$385,083 
Three-Month Period Ended June 30, 2022
Common Stock
Additional
Paid-in
Capital
Accumulated
Deficit
Accumulated
Other
Comprehensive
Income (Loss)
Total
Stockholders’
Equity
Shares
Amount
Balance—March 31, 2022Balance—March 31, 202246,268 $46 $761,580 $(295,336)$(3,465)$462,825 
Impact of equity compensation plansImpact of equity compensation plans155 — 9,605 — — 9,605 
Other comprehensive lossOther comprehensive loss— — — — (879)(879)
Net lossNet loss— — — (14,841)— (14,841)
Balance—June 30, 2022Balance—June 30, 202246,423 $46 $771,185 $(310,177)$(4,344)$456,710 
Three Months Ended March 31, 2021 Six-Month Period Ended June 30, 2021
Common Stock
Additional
Paid-in
Capital
Accumulated
Deficit
Accumulated
Other
Comprehensive
Income (Loss)
Total
Stockholders’
Equity
Common Stock
Additional
Paid-in
Capital
Accumulated
Deficit
Accumulated
Other
Comprehensive
Income (Loss)
Total
Stockholders’
Equity
Shares
Amount
Shares
Amount
Balance—December 31, 2020Balance—December 31, 202045,346 $45 $742,389 $(330,352)$312 $412,394 Balance—December 31, 202045,346 $45 $742,389 $(330,352)$312 $412,394 
Impact of equity compensation plansImpact of equity compensation plans277 (3,905)— — (3,904)Impact of equity compensation plans535 6,255 — — 6,256 
Other comprehensive lossOther comprehensive loss— — — — (330)(330)Other comprehensive loss— — — — (399)(399)
Net lossNet loss— — — (16,917)— (16,917)Net loss— — — (33,168)— (33,168)
Balance—March 31, 202145,623 $46 $738,484 $(347,269)$(18)$391,243 
Balance—June 30, 2021Balance—June 30, 202145,881 $46 $748,644 $(363,520)$(87)$385,083 
Three Months Ended March 31, 2022 Six-Month Period Ended June 30, 2022
Common Stock
Additional
Paid-in
Capital
Accumulated
Deficit
Accumulated
Other
Comprehensive
Income (Loss)
Total
Stockholders’
Equity
Common Stock
Additional
Paid-in
Capital
Accumulated
Deficit
Accumulated
Other
Comprehensive
Income (Loss)
Total
Stockholders’
Equity
Shares
Amount
Shares
Amount
Balance—December 31, 2021Balance—December 31, 202146,016 $46 $764,811 $(280,153)$(948)$483,756 Balance—December 31, 202146,016 $46 $764,811 $(280,153)$(948)$483,756 
Impact of equity compensation plansImpact of equity compensation plans252 — (3,231)— — (3,231)Impact of equity compensation plans407 — 6,374 — — 6,374 
Other comprehensive lossOther comprehensive loss— — — — (2,517)(2,517)Other comprehensive loss— — — — (3,396)(3,396)
Net lossNet loss— — — (15,183)— (15,183)Net loss— — — (30,024)— (30,024)
Balance—March 31, 202246,268 $46 $761,580 $(295,336)$(3,465)$462,825 
Balance—June 30, 2022Balance—June 30, 202246,423 $46 $771,185 $(310,177)$(4,344)$456,710 
See accompanying notes to condensed consolidated financial statements.
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ATRICURE, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In Thousands)
(Unaudited)
Three Months Ended
March 31,
Six Months Ended
June 30,
2022202120222021
Cash flows from operating activities:Cash flows from operating activities:Cash flows from operating activities: 
Net lossNet loss$(15,183)$(16,917)Net loss$(30,024)$(33,168)
Adjustments to reconcile net loss to net cash used in operating activities:Adjustments to reconcile net loss to net cash used in operating activities:Adjustments to reconcile net loss to net cash used in operating activities:
Share-based compensation expenseShare-based compensation expense7,049 6,604 Share-based compensation expense14,573 13,745 
DepreciationDepreciation1,895 1,884 Depreciation3,861 3,815 
Amortization of intangible assetsAmortization of intangible assets972 238 Amortization of intangible assets1,943 965 
Amortization of deferred financing costsAmortization of deferred financing costs128 124 Amortization of deferred financing costs255 249 
Loss on disposal of property and equipmentLoss on disposal of property and equipment18 17 Loss on disposal of property and equipment25 52 
Amortization of investmentsAmortization of investments559 555 Amortization of investments983 1,206 
Change in fair value of contingent considerationChange in fair value of contingent consideration— 2,500 Change in fair value of contingent consideration— 5,100 
Other non-cash adjustments to income320 254 
Other non-cash adjustmentsOther non-cash adjustments654 472 
Changes in operating assets and liabilities:Changes in operating assets and liabilities:Changes in operating assets and liabilities:
Accounts receivableAccounts receivable(7,950)(6,696)Accounts receivable(8,757)(10,799)
InventoriesInventories(1,934)(1,264)Inventories(2,727)(2,707)
Other current assetsOther current assets(1,581)(891)Other current assets32 (308)
Accounts payableAccounts payable1,729 2,835 Accounts payable4,240 3,571 
Accrued liabilitiesAccrued liabilities(10,701)1,799 Accrued liabilities(5,136)4,529 
Other noncurrent assets and liabilitiesOther noncurrent assets and liabilities47 (358)Other noncurrent assets and liabilities(325)(571)
Net cash used in operating activitiesNet cash used in operating activities(24,632)(9,316)Net cash used in operating activities(20,403)(13,849)
Cash flows from investing activities:Cash flows from investing activities:Cash flows from investing activities:
Purchases of available-for-sale securitiesPurchases of available-for-sale securities(3,941)(94,817)
Sales and maturities of available-for-sale securitiesSales and maturities of available-for-sale securities23,103 64,913 Sales and maturities of available-for-sale securities51,749 147,884 
Purchases of property and equipmentPurchases of property and equipment(3,381)(1,326)Purchases of property and equipment(7,565)(5,539)
Net cash provided by investing activitiesNet cash provided by investing activities19,722 63,587 Net cash provided by investing activities40,243 47,528 
Cash flows from financing activities:Cash flows from financing activities:Cash flows from financing activities:
Payments on leasesPayments on leases(217)(198)Payments on leases(437)(399)
Proceeds from stock option exercises355 4,588 
Proceeds from stock option exercises and employee stock purchase planProceeds from stock option exercises and employee stock purchase plan3,374 9,010 
Shares repurchased for payment of taxes on stock awardsShares repurchased for payment of taxes on stock awards(10,635)(15,097)Shares repurchased for payment of taxes on stock awards(11,573)(16,500)
Net cash used in financing activitiesNet cash used in financing activities(10,497)(10,707)Net cash used in financing activities(8,636)(7,889)
Effect of exchange rate changes on cash and cash equivalentsEffect of exchange rate changes on cash and cash equivalents(106)(128)Effect of exchange rate changes on cash and cash equivalents(302)(115)
Net (decrease) increase in cash and cash equivalents(15,513)43,436 
Net increase in cash and cash equivalentsNet increase in cash and cash equivalents10,902 25,675 
Cash and cash equivalents—beginning of periodCash and cash equivalents—beginning of period43,654 41,944 Cash and cash equivalents—beginning of period43,654 41,944 
Cash and cash equivalents—end of periodCash and cash equivalents—end of period$28,141 $85,380 Cash and cash equivalents—end of period$54,556 $67,619 
Supplemental cash flow information:Supplemental cash flow information:Supplemental cash flow information:
Cash paid for interestCash paid for interest$866 $1,066 Cash paid for interest$1,797 $2,147 
Cash paid for income taxes, net of refundsCash paid for income taxes, net of refunds50 47 Cash paid for income taxes, net of refunds132 128 
Non-cash investing and financing activities:Non-cash investing and financing activities:Non-cash investing and financing activities:
Accrued purchases of property and equipmentAccrued purchases of property and equipment1,558 239 Accrued purchases of property and equipment2,562 529 
See accompanying notes to condensed consolidated financial statements.
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ATRICURE, INC. AND SUBSIDIARIES
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(In Thousands, except per share amounts)
(Unaudited)

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 surgical treatments and therapies for atrial fibrillation (Afib), left atrial appendage (LAA) management and post-operative pain management, and sells its products to medical centers globally through its direct sales force and distributors.
Basis of Presentation—The accompanying interim financial statements have been prepared in accordance with the rules and regulations of the Securities and Exchange Commission (SEC). All intercompany accounts and transactions have been eliminated in consolidation. The accompanying interim financial statements are unaudited, but in the opinion of the Company’s management, contain all normal, recurring adjustments considered necessary to present fairly the financial position, results of operations and cash flows for the periods presented in conformity with accounting principles generally accepted in the United States of America (GAAP) applicable to interim periods. Certain information and footnote disclosures included in annual financial statements prepared in accordance with GAAP have been omitted or condensed. The Company believes the disclosures herein are adequate to make the information presented not misleading. Results of operations are not necessarily indicative of the results expected for the full year or for any future period.
The accompanying interim financial statements should be read in conjunction with the Company’s audited financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021 filed with the SEC. All intercompany accounts and transactions have been eliminated in consolidation.
There have been no changes in the Company's significant accounting policies for the threesix months ended March 31,June 30, 2022 as compared to the significant accounting policies described in the Company's Annual Report on Form 10-K for the year ended December 31, 2021 filed with the SEC.
Use of Estimates—The preparation of the financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, including intangible assets, 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. Estimates are based on historical experience, where applicable, and other assumptions believed to be reasonable by management. Actual results could differ from those estimates.
Segments—The chief operating decision maker for the Company is the Chief Executive Officer. The Chief Executive Officer reviews financial information presented on a consolidated basis, accompanied only by information about revenue by product type and geographic area, for purposes of allocating resources and evaluating financial performance. Accordingly, the Company has determined that it has a single operating segment. The Company’s long-lived assets are located primarily in the United States, except for $1,321$1,516 as of March 31,June 30, 2022 and $1,399 as of December 31, 2021 located primarily in Europe.
Net Loss Per Share—Basic and diluted net loss per share is computed by dividing the net loss by the weighted average number of shares 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 1,5671,548 and 1,9551,807 stock options, restricted shares, restricted stock units and performance award shares as of March 31,June 30, 2022 and 2021 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.
2.FAIR VALUE
The Financial Accounting Standards Board’s (FASB) Accounting Standards Codification (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:
Level 1—Quoted prices in active markets for identical assets or liabilities.
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.
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ATRICURE, INC. AND SUBSIDIARIES
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(In Thousands, except per share amounts)
(Unaudited)
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.
The following table represents the Company’s fair value hierarchy for its financial assets measured at fair value on a recurring basis as of March 31,June 30, 2022:
Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
Significant Other
Observable Inputs
(Level 2)
Significant Other
Unobservable
Inputs (Level 3)
TotalQuoted Prices in
Active Markets for
Identical Assets
(Level 1)
Significant Other
Observable Inputs
(Level 2)
Significant Other
Unobservable
Inputs (Level 3)
Total
Assets:Assets:Assets:
Money market fundsMoney market funds$$25,244$$25,244Money market funds$$48,832$$48,832
Commercial paperCommercial paper22,98922,989Commercial paper15,94015,940
Government and agency obligationsGovernment and agency obligations31,91931,919Government and agency obligations31,73531,735
Corporate bondsCorporate bonds84,05984,059Corporate bonds66,78966,789
Asset-backed securitiesAsset-backed securities14,80314,803Asset-backed securities13,72913,729
Total assetsTotal assets$31,919$147,095$$179,014Total assets$31,735$145,290$$177,025
There were no changes in the levels or methodology of measurement of financial assets and liabilities during the three and six months ended March 31,June 30, 2022.
The following table represents the Company’s fair value hierarchy for its financial assets measured at fair value on a recurring basis as of December 31, 2021:
Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
Significant Other
Observable Inputs
(Level 2)
Significant Other
Unobservable
Inputs (Level 3)
Total
Assets:
Money market funds$$38,360$$38,360
Commercial paper22,97822,978
Government and agency obligations32,69032,690
Corporate bonds95,84595,845
Asset-backed securities28,26128,261
Total assets$32,690$185,444$$218,134
Contingent Consideration. The Company’s contingent consideration arrangements arising from the SentreHEART acquisition obligate the Company to pay certain defined amounts to former shareholders of SentreHEART if specified milestones are met related to the aMAZE IDE clinical trial, including PMA approval and reimbursement for the therapy involving SentreHEART’s devices. The Company has assessed the projected probability of payment during the contractual achievement periods to be remote, resulting in no remaining fair value as of March 31,June 30, 2022 and December 31, 2021.
3.INVENTORIES
Inventories consist of the following:
March 31,
2022
December 31,
2021
June 30,
2022
December 31,
2021
Raw materialsRaw materials$13,709$12,653Raw materials$14,235$12,653
Work in processWork in process2,4972,064Work in process2,7422,064
Finished goodsFinished goods24,55624,247Finished goods24,31524,247
TotalTotal$40,762$38,964Total$41,292$38,964
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ATRICURE, INC. AND SUBSIDIARIES
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(In Thousands, except per share amounts)
(Unaudited)
4.INTANGIBLE ASSETS
The following table provides a summary of the Company’s intangible assets:
  March 31, 2022 December 31, 2021
Estimated Useful LifeCostAccumulated
Amortization
CostAccumulated
Amortization
Technology10 - 15 years$55,712$13,692$55,712$12,720
Total$55,712$13,692$55,712$12,720
  June 30, 2022 December 31, 2021
Estimated Useful LifeCostAccumulated
Amortization
CostAccumulated
Amortization
Technology10 - 15 years$55,712$14,663$55,712$12,720
Amortization expense of intangible assets was $972$971 and $238$727 for the three months ended March 31,June 30, 2022 and 2021 and $1,943 and $965 for the six months ended June 30, 2022 and 2021. Future amortization expense is projected as follows:
2022 (excluding the three months ended March 31, 2022)$2,681
2022 (excluding the six months ended June 30, 2022)2022 (excluding the six months ended June 30, 2022)$1,710
202320232,95320232,953
202420242,95320242,953
202520252,95320252,953
202620262,95320262,953
2027 and thereafter2027 and thereafter27,5272027 and thereafter27,527
TotalTotal$42,020Total$41,049
5.ACCRUED LIABILITIES
Accrued liabilities consist of the following:
March 31,
2022
 December 31,
2021
June 30,
2022
 December 31,
2021
Accrued compensation and employee-related expensesAccrued compensation and employee-related expenses$20,305$30,990Accrued compensation and employee-related expenses$25,197$30,990
Sales returns and allowancesSales returns and allowances2,1732,416Sales returns and allowances2,6132,416
Accrued taxes and value-added taxes payableAccrued taxes and value-added taxes payable1,5921,452Accrued taxes and value-added taxes payable1,5721,452
Accrued royalties774754
Other accrued liabilitiesOther accrued liabilities477480Other accrued liabilities1,3931,234
TotalTotal$25,321$36,092Total$30,775$36,092
6.INDEBTEDNESS
Credit Facility. The Company has a Loan and Security Agreement, as amended and modified effective November 1, 2021 (Loan Agreement), with Silicon Valley Bank (SVB). The Loan Agreement includes a $60,000 term loan, a $30,000 revolving line of credit, and an option to make availablefor an additional $30,000 in term loan borrowings. The Loan Agreement has a five year term, expiring November 2026.
Principal payments under the Loan Agreement are to be made ratably commencing 24 months after inception through the loan's maturity date. At the option of the Company, the commencement of term loan principal payments may be extended an additional twelve months. The term loan accrues interest at the Prime Rate plus 1.25% and is subject to an additional 3.00% fee on the term loan principal amount at maturity. The Company is accruing the 3.00% fee over the term of the Loan Agreement, with $150$240 included in the outstanding loan balance as of March 31,June 30, 2022. Additionally, the unamortized original financing costs related to the term loan of $302$286 are netted against the outstanding loan balance in the Condensed Consolidated Balance Sheets and are amortized ratably over the term of the Loan Agreement.
The revolving line of credit is subject to an annual facility fee of 0.20% of the revolving line of credit,, and any borrowings thereunder bear interest at the Prime Rate. Borrowing availability under the revolving credit facility is based on the lesser of $30,000 or a borrowing base calculation as defined by the Loan Agreement. As of March 31,June 30, 2022, the Company had no borrowings under the revolving credit facility and had borrowing availability of approximately $28,750. Financing costs related
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ATRICURE, INC. AND SUBSIDIARIES
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(In Thousands, except per share amounts)
(Unaudited)
to the revolving line of credit are included in other assets in the Condensed Consolidated Balance Sheets and amortized ratably over the twelve-month period of the annual fee.
The Loan Agreement also provides for certain prepayment and early termination fees, as well as establishes a minimum liquidity covenant and dividend restrictions, along with other customary terms and conditions. Specified assets have been pledged as collateral.
Future maturities of long-term debt, excluding the term loan final fee, are projected as follows:
2022 (excluding the three months ended March 31, 2022)$
2022 (excluding the six months ended June 30, 2022)2022 (excluding the six months ended June 30, 2022)$
202320233,33320233,333
2024202420,000202420,000
2025202520,000202520,000
2026202616,667202616,667
Total long-term debtTotal long-term debt$60,000Total long-term debt$60,000
7.LEASES
The Company has operating and finance leases for offices,office, manufacturing and warehouse facilities and computer equipment. The Company’s leases have remaining lease terms of less than one year to nine years. Options to renew or extend leases beyond their initial term have been excluded from measurement of the ROU assets and lease liabilities for the majority of leases as exercise is not reasonably certain.
The weighted average remaining lease term and the discount rate for the reporting periods are as follows:
March 31, 2022December 31, 2021June 30, 2022December 31, 2021
Operating LeasesOperating LeasesOperating Leases
Weighted average remaining lease term (years)Weighted average remaining lease term (years)5.03.6Weighted average remaining lease term (years)4.83.6
Weighted average discount rateWeighted average discount rate4.69%4.69%Weighted average discount rate4.66%4.69%
Finance leases
Finance LeasesFinance Leases
Weighted average remaining lease term (years)Weighted average remaining lease term (years)8.48.6Weighted average remaining lease term (years)8.18.6
Weighted average discount rateWeighted average discount rate6.92%6.91%Weighted average discount rate6.92%6.91%
A $1,250 letter of credit issued to the lessor of the Company's corporate headquarters building is renewed annually and remains outstanding as of March 31,June 30, 2022.
The components of lease expense are as follows:
Three Months Ended
March 31,
Three Months Ended
June 30,
Six Months Ended
June 30,
20222021 2022202120222021
Operating lease costOperating lease cost$286 $279 Operating lease cost$284 $203 $570 $481 
Finance lease cost:Finance lease cost:Finance lease cost:
Amortization of right-of-use assetsAmortization of right-of-use assets169 256 Amortization of right-of-use assets338 242 508 484 
Interest on lease liabilitiesInterest on lease liabilities189 203 Interest on lease liabilities185 200 375 403 
Total finance lease costTotal finance lease cost$358 $459 Total finance lease cost$523 $442 $883 $887 
Short-term lease expense was not significant for the three and six months ended March 31,June 30, 2022 and 2021.
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ATRICURE, INC. AND SUBSIDIARIES
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(In Thousands, except per share amounts)
(Unaudited)
Supplemental cash flow information related to leases was as follows:
Three Months Ended
March 31, 2022
Three Months Ended
March 31, 2021
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases$251 $331 
Operating cash flows from finance leases189 203 
Financing cash flows from finance leases217 198 
No right-of-use assets were obtained in exchange for lease obligations during the three months ended March 31, 2022 and 2021.
Six Months Ended
June 30, 2022
Six Months Ended
June 30, 2021
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases$505 $494 
Operating cash flows for finance leases375 403 
Financing cash flows for finance leases437 399 
Right-of-use assets obtained in exchange for lease obligations:
Operating leases— 1,221 
Finance leases— — 
Supplemental balance sheet information related to leases was as follows:
March 31, 2022December 31, 2021June 30, 2022December 31, 2021
Operating LeasesOperating LeasesOperating Leases
Operating lease right-of-use assetsOperating lease right-of-use assets$4,509 $4,761 Operating lease right-of-use assets$4,241 $4,761 
Current maturities of leasesCurrent maturities of leases845 861 Current maturities of leases884 861 
Operating lease liabilitiesOperating lease liabilities3,865 4,068 Operating lease liabilities3,591 4,068 
Total operating lease liabilitiesTotal operating lease liabilities$4,710 $4,929 Total operating lease liabilities$4,475 $4,929 
Finance LeasesFinance LeasesFinance Leases
Property and equipment, at costProperty and equipment, at cost$14,607 $14,607 Property and equipment, at cost$14,607 $14,607 
Accumulated depreciationAccumulated depreciation(6,285)(6,116)Accumulated depreciation(6,624)(6,116)
Property and equipment, netProperty and equipment, net$8,322 $8,491 Property and equipment, net$7,983 $8,491 
Current maturities of leasesCurrent maturities of leases$915 $895 Current maturities of leases$936 $895 
Finance lease liabilitiesFinance lease liabilities9,845 10,082 Finance lease liabilities9,603 10,082 
Total finance lease liabilitiesTotal finance lease liabilities$10,760 $10,977 Total finance lease liabilities$10,539 $10,977 
MaturitiesFuture maturities of lease liabilities as of March 31,June 30, 2022 were as follows:
Operating LeasesFinance LeasesOperating LeasesFinance Leases
2022 (excluding the three months ended March 31, 2022)$610 $1,223 
2022 (excluding the six months ended June 30, 2022)2022 (excluding the six months ended June 30, 2022)$356 $817 
202320231,160 1,652 20231,160 1,652 
202420241,164 1,674 20241,164 1,674 
20252025920 1,625 2025920 1,625 
20262026592 1,657 2026592 1,657 
2027 and thereafter2027 and thereafter868 6,515 2027 and thereafter868 6,515 
Total paymentsTotal payments$5,314 $14,346 Total payments$5,060 $13,940 
Less imputed interestLess imputed interest(604)(3,586)Less imputed interest(585)(3,401)
TotalTotal$4,710 $10,760 Total$4,475 $10,539 
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ATRICURE, INC. AND SUBSIDIARIES
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(In Thousands, except per share amounts)
(Unaudited)
8.COMMITMENTS AND CONTINGENCIES
Royalty Agreements.Agreement. The Company has a royalty agreement in place with terms that include payment of royalties of 5% of specified product sales. The agreement terminates the later of 2023 or upon expiration of the underlying patents or patent applications, which is expected to occur after 2023. Parties to the royalty agreement have the right at any time to terminate the agreement immediately for cause. Royalty expense of $794$877 and $722$842 was recorded for the three months ended June 30, 2022 and 2021 and $1,670 and $1,564 for the six months ended June 30, 2022 and 2021 as a component of Cost of Revenue in the accompanying Condensed and Consolidated Statement of Operations for the three months ended March 31, 2022 and 2021.Operations.
Purchase Agreements. The Company enters into standard purchase agreements with vendors in the ordinary course of business, generally with terms that allow cancellation.
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. A liability is established once management determines a loss is probable and an amount can be reasonably estimated.
The Company received a Civil Investigative Demand (CID) from the U.S. Department of Justice (USDOJ) in December 2017 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 2010 to December 2017 and required 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. The Company provided the USDOJ with documents and answers to the written interrogatories. In March 2021, USDOJ informed the Company that its investigation was based on a lawsuit brought on behalf of the United States and the various state and local governmentgovernments under the qui tam provisions of federal and certain state and local False Claims Acts. Although the USDOJ and all of the state and local governments declined to intervene, the relator continues to pursue the case. While the Company is vigorously contesting the case, it is not possible to predict when this matter may be resolved or what impact, if any, the outcome of this matter might have on our consolidated financial position, results of operations, or cash flows.
During the first quarter, the Company received a notice of breach under a license agreement regarding its potential underpayment of royalties. The notice asserts that the Company's calculation of royalties payable under the license agreement throughout the agreement term did not include sales of all products that were subject to royalties. The Company disputes the basis of the claim and any potential underpayment. While a loss related to this claim is possible, the Company does not believe such loss is probable or estimable at this time.
9.REVENUE
The Company develops, manufactures and sells devices designed primarily for the surgical ablation of cardiac tissue, the exclusion of the left atrial appendage, and blocking pain by temporarily ablating peripheral nerves. These devices are developed and marketed to a broad base of medical centers globally. The Company recognizes revenue when control of promised goods is transferred to customers in an amount that reflects the consideration the Company expects to be entitled to in exchange for those goods.
In the quarter ended March 31, 2022, the Company changed the presentation of its disaggregated revenue within the notes to the Condensed Consolidated Financial Statements to align with current product line offerings. Specifically, pain management revenue, representing sales of the cryoSPHERE® product, was historically presented within open ablation revenue and is now a separately stated revenue product type. Valve revenue, historically presented as a separate product type revenue, is now included in open ablation revenue. Revenue amounts for comparative prior fiscal periods have been reclassified to conform to the current period presentation.
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ATRICURE, INC. AND SUBSIDIARIES
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(In Thousands, except per share amounts)
(Unaudited)
Revenue reclassified by product type for 2021 is as follows:
Three Months Ended
March 31, 2021June 30, 2021September 30, 2021December 31, 2021
United States Revenue:
Open ablation$17,439 $19,503 $17,893 $17,561 
Minimally invasive ablation8,385 9,702 9,990 11,303 
Pain management3,898 5,709 6,253 6,927 
Total ablation29,722 34,914 34,136 35,791 
Appendage management20,587 25,156 23,401 25,424 
Total United States$50,309 $60,070 $57,537 $61,215 
International Revenue:
Open ablation$4,434 $5,526 $6,690 $6,544 
Minimally invasive ablation1,274 1,575 1,849 1,711 
Pain management— 11 11 39 
Total ablation5,708 7,112 8,550 8,294 
Appendage management3,258 4,194 4,373 3,709 
Total International$8,966 $11,306 $12,923 $12,003 
Total revenue$59,275 $71,376 $70,460 $73,218 
United States revenue by product type is as follows:
Three Months Ended
March 31,
Three Months Ended
June 30,
Six Months Ended
June 30,
202220212022202120222021
Open ablationOpen ablation$18,974$17,439Open ablation$22,070$19,503$41,044$36,942
Minimally invasive ablationMinimally invasive ablation8,6158,385Minimally invasive ablation10,1549,70218,76918,087
Pain managementPain management8,0143,898Pain management10,2105,70918,2249,607
Total ablationTotal ablation$35,603$29,722Total ablation$42,434$34,914$78,037$64,636
Appendage managementAppendage management26,66920,587Appendage management28,83125,15655,50045,743
Total United StatesTotal United States$62,272$50,309Total United States$71,265$60,070$133,537$110,379
International revenue by product type is as follows:
 Three Months Ended
March 31,
 20222021
Open ablation$6,492$4,434
Minimally invasive ablation1,5331,274
Pain management140
Total ablation$8,165$5,708
Appendage management4,1393,258
Total International$12,304$8,966
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ATRICURE, INC. AND SUBSIDIARIES
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(In Thousands, except per share amounts)
(Unaudited)
 Three Months Ended
June 30,
Six Months Ended
June 30,
 2022202120222021
Open ablation$6,213$5,526$12,705$9,960
Minimally invasive ablation1,2711,5752,8042,849
Pain management1141125411
Total ablation$7,598$7,112$15,763$12,820
Appendage management5,6664,1949,8057,452
Total International$13,264$11,306$25,568$20,272
Revenue attributed to customer geographic locations is as follows:
Three Months Ended
March 31,
Three Months Ended
June 30,
Six Months Ended
June 30,
202220212022202120222021
United StatesUnited States$62,272$50,309United States$71,265$60,070$133,537$110,379
EuropeEurope7,2375,766Europe7,7837,01515,02012,781
AsiaAsia4,5572,873Asia4,9334,0889,4906,961
Other InternationalOther International510327Other International5482031,058530
Total InternationalTotal International12,3048,966Total International13,26411,30625,56820,272
Total revenue$74,576$59,275
Total RevenueTotal Revenue$84,529$71,376$159,105$130,651
10.INCOME TAX PROVISION
The Company files federal, state and foreign income tax returns in jurisdictions with varying statutes of limitations. The Company uses the asset and liability method to determine its provision for income taxes. The Company’s provision for income taxes in interim periods is computed by applying the discrete method and is based on financial results through the end of the interim period. The Company determined that using the discrete method is more appropriate than using the annual effective tax rate method. The Company is unable to estimate the annual effective tax rate with sufficient precision to use the effective tax rate method, which requires a full-year projection of income. The effective tax rate for the three months ended March 31,June 30, 2022 and 2021 was (0.37%(0.30%) and (0.18%(0.41%). The effective tax rate for the six months ended June 30, 2022 and 2021 was (0.34%) and (0.29%). The Company’s worldwide effective tax rate differs from the US statutory rate of 21% primarily due to the Company’s valuation allowance.
Federal, state and local returns of the Company are routinely subject to review by various taxing authorities. The Company has not accrued any interest and penalties related to unrecognized income tax benefits as a result of offsetting of net operating losses. However, if required, the Company will recognize interest and penalties within income tax expense and within the related tax liability.
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ATRICURE, INC. AND SUBSIDIARIES
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(In Thousands, except per share amounts)
(Unaudited)
11.EQUITY COMPENSATION PLANS
The Company has 2 share-based incentive plans: the 2014 Stock Incentive Plan (2014 Plan) and the 2019 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 restricted stock awards, restricted stock units, nonstatutory stock options, performance share awards and stock appreciation rights to Company employees, directors and consultants. The Compensation Committee of the Board of Directors, as the administrator of the 2014 Plan, 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 March 31,June 30, 2022, 12,899 shares of common stock had been reserved for issuance under the 2014 Plan, and 1,1521,076 shares were available for future grants. At the Company's 2022 Annual Meeting of Stockholders, stockholders approved an amendment to the 2014 Plan increasing the shares authorized under the 2014 Plan by 1,100.
Employee Stock Purchase Plan
Under the ESPP, shares of the Company’s common stock may be purchased at a discount (15%) of the lesser of the closing price of the Company’s common stock on the first or last trading days of the offering period. The offering period (currently six months) and the offering price are subject to change. Participants may not purchase a value of more than $25 of the Company’s common stock in a calendar year and may not purchaseor more than 3 shares during an offering period. As of March 31,June 30, 2022, there were 305228 shares available for future issuance under the ESPP.
Share-Based Compensation Expense Information
The following table summarizes the allocation of share-based compensation expense:
Three Months Ended
June 30,
Six Months Ended
June 30,
2022202120222021
Cost of revenue$487 $598 $1,058 $1,017 
Research and development expenses1,186 1,083 2,316 2,020 
Selling, general and administrative expenses5,851 5,460 11,199 10,708 
Total$7,524 $7,141 $14,573 $13,745 
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ATRICURE, INC. AND SUBSIDIARIES
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(In Thousands, except per share amounts)
(Unaudited)
Share-Based Compensation Expense Information
The following table summarizes the allocation of share-based compensation expense:
Three Months Ended
March 31,
20222021
Cost of revenue$571 $419 
Research and development expenses1,130 937 
Selling, general and administrative expenses5,348 5,248 
Total$7,049 $6,604 
12.COMPREHENSIVE LOSS AND ACCUMULATED OTHER COMPREHENSIVE LOSS
In addition to net losses, comprehensive loss includes foreign currency translation adjustments and unrealized gains (losses) on investments.
Accumulated other comprehensive loss consisted of the following, net of tax:
Three Months Ended
March 31,
Three Months Ended
June 30,
Six Months Ended
June 30,
202220212022202120222021
Total accumulated other comprehensive (loss) income at beginning of periodTotal accumulated other comprehensive (loss) income at beginning of period$(948)$312 Total accumulated other comprehensive (loss) income at beginning of period$(3,465)$(18)$(948)$312 
Unrealized Gains (Losses) on InvestmentsUnrealized Gains (Losses) on InvestmentsUnrealized Gains (Losses) on Investments
Balance at beginning of periodBalance at beginning of period$(887)$54Balance at beginning of period$(3,226)$23$(887)$54
Other comprehensive loss before reclassificationsOther comprehensive loss before reclassifications(2,339)(31)Other comprehensive loss before reclassifications(377)(132)(2,716)(163)
Amounts reclassified from accumulated other comprehensive loss to other income (expense)Amounts reclassified from accumulated other comprehensive loss to other income (expense)Amounts reclassified from accumulated other comprehensive loss to other income (expense)(72)(72)
Balance at end of periodBalance at end of period$(3,226)$23Balance at end of period$(3,675)$(109)$(3,675)$(109)
Foreign Currency Translation AdjustmentForeign Currency Translation AdjustmentForeign Currency Translation Adjustment
Balance at beginning of periodBalance at beginning of period$(61)$258 Balance at beginning of period$(239)$(41)$(61)$258 
Other comprehensive loss before reclassifications(261)(298)
Other comprehensive income (loss) before reclassificationsOther comprehensive income (loss) before reclassifications(527)36(787)(262)
Amounts reclassified from accumulated other comprehensive loss to other income (expense)Amounts reclassified from accumulated other comprehensive loss to other income (expense)83(1)Amounts reclassified from accumulated other comprehensive loss to other income (expense)9727 17926
Balance at end of periodBalance at end of period$(239)$(41)Balance at end of period$(669)$22 $(669)$22 
Total accumulated other comprehensive loss at end of periodTotal accumulated other comprehensive loss at end of period$(3,465)$(18)Total accumulated other comprehensive loss at end of period$(4,344)$(87)$(4,344)$(87)
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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations
(Dollar amounts referenced in this Item 2 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 Condensed Consolidated Financial Statements and notes thereto contained in Item 1 of Part I of this Form 10-Q and our audited financial statements and notes thereto as of and for the year ended December 31, 2021 included in our Form 10-K filed with the Securities and Exchange Commission (SEC) to provide an understanding of our results of operations, financial condition and cash flows.
Forward-Looking Statements
This Form 10-Q, 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 quarterly report on Form 10-Q, and in our annual report on Form 10-K for the year ended December 31, 2021. There may be additional risks of which we are not presently aware or that we currently believe are immaterial which could have an adverse impact on our business. 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,” “could,” “can,” “may,” “future,” “predicts,” “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, circumstances 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 including developments related to the COVID-19 pandemic, as discussed herein. 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-Q. 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.
Overview
We are a leading innovator in treatments for atrial fibrillation (Afib), left atrial appendage (LAA) management and post-operative pain management. According to the American Heart Association, Afib affects 1-2% of the population in the United States.States and an estimated 33 million people worldwide. It is the most common cardiac arrhythmia, or irregular heartbeat, encountered in clinical practice and results in high utilization of healthcare services. Patients often progress from being in Afib intermittently (paroxysmal) to being in Afib continuously. The continuous Afib patient population includes persistent Afib, which lasts seven days to one year, and long-standing persistent Afib, which lasts longer than one year. Afib often occurs in conjunction with other cardiovascular diseases, including hypertension, congestive heart failure, left ventricular dysfunction, coronary artery disease and valvular disease. Our ablation and left atrial appendage management (LAAM) products are used by physicians during both open-heart and minimally invasive procedures. In open-heart procedures, the physician is performing heart surgery for other conditions, and our products are used in conjunction with (“concomitant” to) such a procedure. Minimally invasive procedures are performed on a standalone basis, and often include multi-disciplinary or “hybrid” approaches, combining both surgical procedures using AtriCure ablation and LAAM products andwith catheter ablation.
We believe that we are currently the market leader in the surgical treatment of Afib. Our Isolator® Synergy™ Ablation System is approved by the United States Food and Drug Administration (FDA) for the treatment of persistent and long-standing persistent Afib concomitant to other open-heart surgical procedures. TheOur EPi-Sense® System is approved by FDA to treat patients with long-standing persistent Afib. All of our other ablation devices are cleared for sale in the United States under FDA 510(k) clearances, including our other radio frequency (RF) and cryoablation products, which are indicated for the ablation of cardiac tissue and/or the treatment of cardiac arrhythmias. In addition, certain of our cryoablation probes are cleared for managing pain by temporarily ablating peripheral nerves, or Cryo Nerve Block therapy. Our AtriClip® LAA Exclusion System products are 510(k)-cleared with an indication for the exclusion of the 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. Studies have demonstrated exclusion of the LAA with AtriClip also results in electrical isolation of the LAA. The LARIAT®LARIAT® system is cleared under the 510(k) process for soft tissue ligation. Several of our products are currently being studied to expand labeling
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to expand labeling claims or to support indications specifically for the treatment of Afib.Afib, prophylactic stroke reduction or other arrhythmias. Our Isolator Synergy clamps, Isolator Synergy pens, Coolrail® linear pen, cryoablation devices, cryoSPHERE® probe, certain products of the AtriClip LAA Exclusion System, COBRA Fusion® Ablation System, the EPi-Sense® system and LARIAT Suture Delivery Device bear the CE mark and may be commercially distributed throughout the member states of the European Union and other countries that comply with or mirror the Medical Device Directive. Our Isolator Synergy clamps, Isolator Synergy pens, Coolrail linear pen, cryoablation devices and certain products of the AtriClip LAA Exclusion System are available in select Asia-Pacific countries. 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.
We sell our products to medical centers through our direct sales force in the United States and in certain international markets, such as Germany, France, the United Kingdom, and the Benelux region.region and Australia. We also sell our products through distributors who in turn sell our products to medical centers in other international markets. Our business is primarily transacted in U.S. Dollars, with certain exceptions. The majority of directDirect sales transactions outside the United States are transacted in Euros, British Pounds or the British Pound.Australian Dollars.
Recent Developments
During early 2022, we experiencedcontinued to experience variability and intermittent demand for our products as non-emergent procedures were deferred in order to preserve resources for COVID-19 patients and caregivers and hospital staffing was impacted by the pandemic and related factors. We saw many regions stabilize through the quarter with overall improvements in procedure volumes. However, we expect thissome variability to continue as we operate in many geographic regions with diverse restrictions that are impacted as new COVID-19 variants emerge. However, we saw many regions stabilize at the end of the first quarter of 2022 with improvements in procedure volumes. Despite the challenging environment resulting from the pandemic, weour worldwide revenue in the six months ended June 30, 2022 was $159,105, representing an increase of $28,454, or 21.8%, over the first six months of 2021, driven by growing adoption across key product lines. We continue to build on our strategic initiatives of product innovation, investing in clinical science and expanding awareness and adoption by providing superior training and education.
PRODUCT INNOVATION. Recently,During the first half of 2022, we announced the launch of the new EnCompass Clamplaunched our ENCOMPASS®, clamp, following the receipt of 510(k) clearance for ablation of cardiac tissue during cardiac surgery in July 2021. The EnCompassENCOMPASS clamp marks innovation in our core open ablation market and is designed to make concomitant surgical ablations more efficient. It is expected to drive deeper penetration of cardiac surgery procedures.
CLINICAL SCIENCE. We continue to invest in studies to expand labeling claims or support various indications for the treatment of Afib,our products, and we also conduct various studies to gather clinical data regarding our products.
HEAL-IST. In February 2022, FDA approved the protocol for the Hybrid Epicardial and Endocardial Sinus Node Sparing Ablation Therapy for Inappropriate Sinus Tachycardia (IST) clinical trial (HEAL-IST) clinical trial.. The HEAL-IST clinical trial is designed to study the safety and efficacy of a hybrid sinus node sparing ablation procedure using the Isolator Synergy Surgical Ablation System for the treatment of symptomatic, drug refractory or drug intolerant IST. The trial is a prospective, multicenter, single arm trial that evaluates safety 30 days post-procedure and evaluates primary effectiveness of freedom from IST (as specified) at 12 months post-procedure. The trial provides for enrollment of up to 142 patients at up to 40 sites in the United States, United Kingdom and European Union. The Company anticipatesWe announced the first patient enrollment to begin this year.in the trial in June 2022; site initiation and enrollment is ongoing.
LeAAPS. In April 2022, FDA approved the protocol for the Left Atrial Appendage Exclusion for Prophylactic Stroke Reduction (LeAAPS) IDE clinical trial. The trial is designed to evaluate the effectiveness of prophylactic LAA exclusion using the AtriClip LAA Exclusion System for the prevention of ischemic stroke or systemic arterial embolism in cardiac surgery patients without pre-operative AF diagnosis who are at risk for these events. The trial is a prospective, multicenter, randomized trial that evaluates safety at 30 days post-procedure to demonstrate no increased risk with LAA exclusion during cardiac surgery. The trial provides for enrollment of up to 6,500 subjects at up to 250 sites worldwide. The Company anticipates enrollment to begin later this year.
TRAINING. Our professional education and marketing teams conduct virtual, in-person and mobile training for physicians and our sales team.teams. These training methods ensure invaluable access to continuing education and awareness of our products and related procedures. The 2021 FDA approval of the EPi-Sense system has enabled us to educate and train physicians on the benefits of Hybrid AF™ therapy in treating long-standing persistent Afib patients. Our Hybrid Training Course isand Advanced Hybrid Ablation Training Course are co-sponsored by the Hearth Rhythm Society (HRS).

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Results of Operations
Three months ended March 31,June 30, 2022 compared to three months ended March 31,June 30, 2021
The following table sets forth, for the periods indicated, our results of operations expressed as dollar amounts and as percentages of revenue:
Three Months Ended
March 31,
Three Months Ended
June 30,
2022202120222021
Amount% of
Revenues
Amount% of
Revenues
Amount% of
Revenues
Amount% of
Revenues
RevenueRevenue$74,576 100.0  %$59,275 100.0  %Revenue$84,529 100.0  %$71,376 100.0  %
Cost of revenueCost of revenue18,981 25.5  %14,735 24.9  %Cost of revenue21,010 24.9  %17,298 24.2  %
Gross profitGross profit55,595 74.5  %44,540 75.1  %Gross profit63,519 75.1  %54,078 75.8  %
Operating expenses:Operating expenses:Operating expenses:
Research and development expensesResearch and development expenses13,629 18.3  %11,217 18.9  %Research and development expenses14,791 17.5  %12,197 17.1  %
Selling, general and administrative expensesSelling, general and administrative expenses56,116 75.2  %49,208 83.0  %Selling, general and administrative expenses62,388 73.8  %56,958 79.8  %
Total operating expensesTotal operating expenses69,745 93.5  %60,425 101.9  %Total operating expenses77,179 91.3  %69,155 96.9  %
Loss from operationsLoss from operations(14,150)(19.0) %(15,885)(26.8) %Loss from operations(13,660)(16.2) %(15,077)(21.1) %
Other expense, net:Other expense, net:(977)(1.3) %(1,001)(1.7) %Other expense, net:(1,136)(1.3) %(1,108)(1.6) %
Loss before income tax expenseLoss before income tax expense(15,127)(20.3) %(16,886)(28.5) %Loss before income tax expense(14,796)(17.5) %(16,185)(22.7) %
Income tax expenseIncome tax expense56 0.1  %31 0.1  %Income tax expense45 0.1  %66 0.1  %
Net lossNet loss$(15,183)(20.4) %$(16,917)(28.5) %Net loss$(14,841)(17.6) %$(16,251)(22.8) %
Revenue. The following table sets forth, for the periods indicated, our revenue by product type and geography expressed as dollar amounts and the corresponding change in such revenues between periods, in both dollars and percentages:
Three Months Ended
March 31,
ChangeThree Months Ended
June 30,
Change
20222021Amount%20222021Amount%
Open ablationOpen ablation$18,974 $17,439 $1,535 8.8  %Open ablation$22,070 $19,503 $2,567 13.2  %
Minimally invasive ablationMinimally invasive ablation8,615 8,385 230 2.7  %Minimally invasive ablation10,154 9,702 452 4.7  %
Pain managementPain management8,014 3,898 4,116 105.6  %Pain management10,210 5,709 4,501 78.8  %
Appendage managementAppendage management26,669 20,587 6,082 29.5  %Appendage management28,831 25,156 3,675 14.6  %
Total United StatesTotal United States$62,272 $50,309 $11,963 23.8  %Total United States$71,265 $60,070 $11,195 18.6  %
Total InternationalTotal International12,304 8,966 3,338 37.2  %Total International13,264 11,306 1,958 17.3  %
Total revenueTotal revenue$74,576 $59,275 $15,301 25.8  %Total revenue$84,529 $71,376 $13,153 18.4  %
Worldwide revenue increased 25.8% (26.7%18.4% (19.8% on a constant currency basis). In the United States, we experienced growth acrossin most of our key product lineslines. Physician acceptance of our cryoSPHERE® probe for post-operative pain management and franchises.expanded sales efforts drove growth in pain management revenue. Appendage management and pain management sales increases were driven by salescontinuing adoption of theour AtriClip® Flex⋅V® device and cryoSPHEREPro⋅V® probe. The softdevices, while the launch of the new EnCompass Clamp contributed to theENCOMPASS clamp accelerated growth in our open ablation sales growth, whilerevenue. While minimally invasive procedures continue to experience residual impacts from the pandemic and staffing, we saw growing adoption of the EPi-Sense® System alone drove increases in an increasing customer base. The increase in EPi-Sense revenue was largely offset by a decline in revenue from all other minimally invasive ablation.ablation products. International sales increased 37.2% (43.1%17.3% (26.3% on a constant currency basis), rising across all major franchises duea result of rebounding procedure volumes in Europe, primarily toin the Asian marketsNetherlands and our direct markets in the United Kingdom, and Germany.growth in Australia. The increase in international revenue was driven mainly by our appendage management business which grew 35.1%.
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Revenue reported on a constant currency basis is a non-GAAP measure and is calculated by applying previous period foreign currency (Euro) exchange rates, which are determined by the average daily Euro to Dollar exchange rate, 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, we believe that evaluating growth in revenue on a constant currency basis provides an additional and meaningful assessment of revenue to both management and investors.
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Cost of revenue and gross margin. Cost of revenue increased $4,246,$3,712, reflecting higher sales volumes, while gross margin decreased approximately 6070 basis points, reflecting geographic andchanges in U.S. product mix between periods and cost increases.increases driven by inflationary and supply chain pressures.
Research and development expenses. Research and development expenses increased $2,412$2,594 or 21.5%21.3%. Personnel costs grew $995rose $1,372 from increased headcount as we continue to build our product development, regulatory and clinical teams, and from increased travel activity resumes. Amortization of the technology assetcosts. Product development and regulatory expenses increased $869 driven mainly by regulatory filings, submissions and consulting related to compliance with the European Union Medical Device Regulation (EU MDR). Amortization expense increased $247 following the April 2021 PMA resulting from the CONVERGE IDE clinical trial, which commenced in April 2021, drove higher depreciation and amortization expense of $730. Finally, share-based compensation increased $193 compared with the prior period.trial.
Selling, general and administrative expenses. Selling, general and administrative expenses increased $6,908,$5,430, or 14.0%9.5%. Additional headcount and travel activities of $5,301$4,058 drove the increase in expenses, primarily reflecting the expansion of our sales and training teams, while meetings, marketing, trainings and tradeshow activities contributed $2,915$2,054 of the increase in expenses as we saw further transition from virtual to in-person events. Other operating costs including IT, legal and administrative expenses grew $768 as$838 compared towith the prior period. Partially offsetting these increases wasperiod, which includes consulting, professional services and information systems enhancements. Additionally, 2021 included a $2,500$2,600 charge for the change in fair value of the SentreHEART contingent consideration liability, as well as a reduction in 2021.expenses from a one-time tax credit of $759.
Other income (expense). Other income and expense consists primarily of net interest expense and foreign currency transaction gains and losses. Net interest expense decreased $69 primarily due to lower interest expense as a result of the November 2021 amendment of our Loan Agreement.
Six months ended June 30, 2022 compared to six months ended June 30, 2021
The following table sets forth, for the periods indicated, our results of operations expressed as dollar amounts and as percentages of revenue:
Six Months Ended
June 30,
20222021
Amount% of
Revenues
Amount% of
Revenues
Revenue$159,105 100.0  %$130,651 100.0  %
Cost of revenue39,991 25.1  %32,033 24.5  %
Gross profit119,114 74.9  %98,618 75.5  %
Operating expenses:
Research and development expenses28,420 17.9  %23,414 17.9  %
Selling, general and administrative expenses118,504 74.5  %106,166 81.3  %
Total operating expenses146,924 92.3  %129,580 99.2  %
Loss from operations(27,810)(17.5) %(30,962)(23.7) %
Other expense, net:(2,113)(1.3) %(2,109)(1.6) %
Loss before income tax expense(29,923)(18.8) %(33,071)(25.3) %
Income tax expense101 0.1  %97 0.1  %
Net loss$(30,024)(18.9) %$(33,168)(25.4) %
Revenue. The following table sets forth, for the periods indicated, our revenue by product type and geography expressed as dollar amounts and the corresponding change in such revenues between periods, in both dollars and percentages:
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Six Months Ended
June 30,
Change
20222021Amount%
Open ablation$41,044 $36,942 $4,102 11.1  %
Minimally invasive ablation18,769 18,087 682 3.8  %
Pain management18,224 9,607 8,617 89.7  %
Appendage management55,500 45,743 9,757 21.3  %
Total United States$133,537 $110,379 $23,158 21.0  %
Total International25,568 20,272 5,296 26.1  %
Total revenue$159,105 $130,651 $28,454 21.8  %
Worldwide revenue increased $17121.8% (23.0% on a constant currency basis). In the United States, we experienced growth across most key product lines as cardiac surgery volumes began to stabilize. Appendage management revenue increases were driven by lower interest incomesales of the AtriClip® Flex⋅V® and Pro⋅V® devices, while continuing adoption of the cryoSPHERE® probe for post-operative pain management drove pain management sales. The launch of the new ENCOMPASS clamp contributed to the open ablation sales growth, while adoption of the EPi-Sense® System drove increases in minimally invasive ablation and offset declines in other minimally invasive ablation products. International sales increased 26.1% (33.7% on a constant currency basis), with procedure volumes rising across all major franchises and regions.
Cost of revenue and gross margin. Cost of revenue increased $7,958, reflecting higher revenue and a decrease in gross margin of approximately 60 basis points, resulting from changes in U.S. product mix and cost inflation and supply chain pressures, slightly offset by geographic mix.
Research and development expenses. Research and development expenses increased $5,006 or 21.4%. Personnel costs increased $2,560 from additional headcount as we continue to build our product development, regulatory and clinical teams and return to historical travel levels. Regulatory submissions, consulting, as well as product development projects increased $1,119. Amortization expense increased $978 following the April 2021 PMA resulting from the CONVERGE IDE clinical trial.
Selling, general and administrative expenses. Selling, general and administrative expenses increased $12,338, or 11.6%. Additional headcount and travel activities increased $9,459, primarily reflecting the expansion across our teams, as well as a declinereturn to historical travel levels. Additional tradeshow, meetings, physician training and marketing activities contributed $4,969 of the increase reflecting continuing transition from virtual to in-person events and the expansion of training programs. Other operating costs, including contracting, product demo costs and professional services grew $1,161 as compared to the prior period. Additionally, 2021 expenses included a $5,100 charge for the change in investment yieldsfair value of the SentreHEART contingent consideration liability, partially offset by a one-time tax credit of $759.
Other income (expense). Other income and expense consists primarily of net interest expense and foreign currency transaction gains and losses. Net interest expense decreased $240 primarily due to lower interest expense on the term loan, stemming from the November 2021 refinancing.amendment of our Loan Agreement.
Liquidity and Capital Resources
As of March 31,June 30, 2022, the Company had cash, cash equivalents and investments of $181,911$182,749 and outstanding debt of $60,000. We had unused borrowing capacity of approximately $28,750 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 $152,232$149,850 and an accumulated deficit of $295,336$310,177 as of March 31,June 30, 2022.
Three Months Ended March 31,Six Months Ended June 30,
20222021Change20222021Change
(dollars in thousands)(dollars in thousands)
Net cash used in operating activitiesNet cash used in operating activities$(24,632)$(9,316)$15,316 Net cash used in operating activities$(20,403)$(13,849)$6,554 
Net cash provided by investing activitiesNet cash provided by investing activities19,722 63,587 (43,865)Net cash provided by investing activities40,243 47,528 (7,285)
Net cash used in financing activitiesNet cash used in financing activities(10,497)(10,707)(210)Net cash used in financing activities(8,636)(7,889)747 
Cash flows used in operating activities. Net cash used in operating activities increased $15,316$6,554 in 2022 compared to 2021. This change is driven by the fluctuation in working capital and other assets and liabilities of $15,815, driven by$6,389, primarily due to the $12,500
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$9,665 reduction in accrued liabilities primarily as a result of higher annual variable compensation payments due to improved operating performance, andoffset by a $1,254 increase$2,042 decrease in accounts receivable as a result of sales growth.receivable. The remaining fluctuation is a decrease in the net loss of $1,734,$3,144, largely driven by a decrease in non-cash expenses, of $1,235. Fluctuation in non-cash expenses is largely the $2,500including $5,100 non-cash impact for the fair value adjustment of the SentreHEART contingent consideration liability in 2021, offset partially by increased amortization of the CONVERGE technology asset.
Cash flows provided by investing activities. Net cash provided by investing activities decreased by $43,865$7,285 in 2022 compared to 2021, due to a decreasereflecting decreases in net sales and maturities of available-for-sale securities of $41,810, offset by an increase of $2,055 for the purchase$5,259 and increased purchases of property and equipment to supportof $2,026 for the expansion of our manufacturing facilities and new product introductions and construction costs to expand our manufacturing facilities.introductions.
Cash flows used in financing activities. Net cash used in financing activities decreasedincreased by $210$747 in 2022 due primarily tolargely reflecting lower stock option exercise activity of $4,233$6,090, offset by a decrease of $4,462$4,927 in cash tax payments from restricted and performance share vesting.vesting and increased proceeds from issuance of shares under ESPP of $453.
Credit facility. Our Loan and Security Agreement, as amended and modified effective November 1, 2021 (Loan Agreement) with Silicon Valley Bank (SVB) provides for a $60,000 term loan, a $30,000 revolving line of credit, and an option to make available an additional $30,000 in term loan borrowings. The Loan Agreement has a five year term, expiring November 2026. Principal payments are to be made ratably commencing 24 months after the inception of the loan through the loan's maturity date. At the option of the Company, the commencement of term loan principal payments may be extended an additional twelve months. The term loan accrues interest at the Prime Rate plus 1.25% and is subject to an additional 3.00% fee on the term loan principal amount at maturity. As of March 31,June 30, 2022, our outstanding debt was $60,000 and is classified as
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noncurrent. We had unused borrowing capacity of approximately $28,750 under our revolving credit facility. For additional information on the terms and conditions, as well as applicable interest and fee payments, see Note 6 — Indebtedness.
Our corporate headquarters lease agreement requires a $1,250 letter of credit which renews annually and remains outstanding as of March 31,June 30, 2022.
Uses of liquidity and capital resources. Our executive officers and Board of Directors review our funding sources and future capital requirements in connection with our annual operating plan and periodic updates to the plan. Our future capital requirements depend on a number of factors, including, without limitation: market acceptance of our current and future products; costs to develop and support our products, including professional training; future expenses to expand and support our sales and marketing efforts; operating and filing costs relating to changes in regulatory policies or laws; costs for clinical trials and to secure regulatory approval for new products; costs to prosecute, defend and enforce our intellectual property rights; maintenance and enhancements to our information systems and security; and possible acquisitions and joint ventures, including potential business integration costs. We continue to evaluate additional measures to maintain financial flexibility, and we will continue to closely monitor our liquidity and capital resources through the recovery from, and any further disruptions caused by, COVID-19. Our principal cash requirements include costs of operations, capital expenditures, debt service costs and other contractual obligations.
Critical Accounting Policies and Estimates
Our discussion and analysis of our financial condition and results of operations is based upon our financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP). The preparation of 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, inventories, share-based compensation and income taxes. 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. Our Annual Report on Form 10-K for the fiscal year ended December 31, 2021 includes additional information about the Company, our operations, our financial position and our critical accounting policies and estimates and should be read in conjunction with this Quarterly Report on Form 10-Q.
Recent Accounting Pronouncements
As of March 31,June 30, 2022, there were no material changes to the information provided in Note 2, “Recent Accounting Pronouncements” in the Company’s Form 10-K for the fiscal year ended December 31, 2021.
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Item 3. Quantitative and Qualitative Disclosures About Market Risk
As of March 31,June 30, 2022, there were no material changes to the information provided under Item 7A, “Quantitative and Qualitative Disclosures About Market Risk” in the Company’s Form 10-K for the year ended December 31, 2021.
Item 4. Controls and Procedures
Evaluation of Disclosure Controls and Procedures
The Company’s management, with the participation of the President and Chief Executive Officer (the Principal Executive Officer) and Chief Financial Officer (the Principal Accounting and Financial Officer), has evaluated the effectiveness of the Company’s disclosure controls and procedures, as defined in Rules 13(a) -15(e) and 15(d) -15(e) of the Securities Exchange Act of 1934 as amended (Exchange Act), 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 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
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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 March 31,June 30, 2022 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.
PART II. OTHER INFORMATION
Item 1. Legal Proceedings
Information with respect to legal proceedings can be found under the heading “Legal” in Note 8 – Commitments and Contingencies to the Condensed Consolidated Financial Statements in Part I, Item 1 of this Quarterly Report on Form 10-Q, and is incorporated herein by reference.
Item 1A. Risk Factors
In addition to the other information set forth in this report, careful consideration should be given to the factors discussed in Item 1A, “Risk Factors” in our Form 10-K for the year ended December 31, 2021, all of which could materially affect our business, financial condition or future results. The risks described therein are not the only risks facing us. Additional risks and uncertainties not currently known to us, or that we currently deem to be immaterial, also may adversely affect our business, financial condition and/or operating results. There have been no material changes with respect to the risk factors previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2021.
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Item 6. Exhibits
Exhibit No.Description
10.1#
31.1
31.2
32.1
32.2
101.INSXBRL Instance Document
101.SCHXBRL Taxonomy Extension Schema Document
101.CALXBRL Taxonomy Extension Calculation Linkbase Document
101.DEFXBRL Taxonomy Definition Linkbase Document
101.LABXBRL Taxonomy Extension Label Linkbase Document
101.PREXBRL Taxonomy Extension Presentation Linkbase Document
104Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)
____________________________
#    Compensatory plan or arrangement.

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SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
AtriCure, Inc.
(REGISTRANT)
Date: May 4,August 3, 2022/s/ Michael H. Carrel
Michael H. Carrel
President and Chief Executive Officer
(Principal Executive Officer)
Date: May 4,August 3, 2022/s/ Angela L. Wirick
Angela L. Wirick
Chief Financial Officer
(Principal Accounting and Financial Officer)
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