You should read the following discussion and analysis of our financial condition and results of operations together with our condensed financial statements and related notes included in this Quarterly Report on Form 10-Q and our audited consolidated financial statements and related notes thereto contained in our Annual Report on Form 10-K for the year ended December 31, 2020. Some of the information contained in this discussion and analysis or set forth elsewhere in this Quarterly Report on Form 10-Q, including information with respect to our plans and strategy for our business, includes forward-looking statements that involve risks and uncertainties. As a result of many important factors, including those set forth under "Special Note Regarding Forward-Looking Statements", in the "Risk Factors" section of this Quarterly Report on Form 10-Q and in the "Risk Factors" section of our Annual Report on Form 10-K for the year ended December 31, 2020, our actual results could differ materially from the results described in, or implied, by those forward-looking statements.

Overview

We are a medical device company focused on developing and commercializing products intended to transform the way calcified cardiovascular disease is treated. We aim to establish a new standard of care for medical device treatment of atherosclerotic cardiovascular disease through our differentiated and proprietary local delivery of sonic pressure waves for the treatment of calcified plaque, which we refer to as intravascular lithotripsy ("IVL"). Our IVL system (our "IVL System"), which leverages our IVL technology (our "IVL Technology"), is a minimally invasive, easy-to-use, and safe way to significantly improve patient outcomes. We are currently selling the following products in a number of countries around the world where we have applicable regulatory approvals:

Products for the Treatment of Peripheral Artery Disease ("PAD"):



   •  Our Shockwave M5 IVL catheter ("M5 catheter"), which was CE-Marked in April
      2018 and cleared by the U.S. Food and Drug Administration ("FDA") in July
      2018 for use in our IVL System for the treatment of PAD.


   •  The second version of our Shockwave S4 IVL catheter ("S4 catheter"), which
      was cleared by the FDA in August 2019 and accepted by our EU notified body
      in May 2020 for use in our IVL System for the treatment of below the knee
      PAD.

Product for the Treatment of Coronary Artery Disease ("CAD"):



   •  Our Shockwave C2 IVL catheter ("C2 catheter") was CE-Marked in June 2018 and
      cleared by the FDA in February 2021 for use in our IVL System for the
      treatment of CAD.

We also have ongoing clinical programs across several products and indications, which, if successful, will allow us to expand commercialization of our products into new geographies and indications. Importantly, in October 2020, we announced the results of our DISRUPT CAD III global study. The data from DISRUPT CAD III supported our pre-market application ("PMA") in the United States for our C2 catheters, and a Shonin submission in Japan for our C2 catheters. In addition, we began enrollment in the DISRUPT CAD IV Japan study in 2019 and completed enrollment in April 2020. In March of 2021, we submitted CAD III and CAD IV data to support Shonin approval, with subsequent Japan launch planned for the first half of 2022, subject to applicable regulatory approvals.

The first two indications we are targeting with our IVL System are PAD, the narrowing or blockage of vessels that carry blood from the heart to the extremities, and CAD, the narrowing or blockage of the arteries that supply blood to the heart. In the future, we see significant opportunity in the potential treatment of aortic stenosis, a condition where the heart's aortic valve becomes increasingly calcified with age, causing it to narrow and obstruct blood flow from the heart.

We have adapted the use of lithotripsy to the cardiovascular field with the aim of creating what we believe can become the safest, most effective means of addressing the growing challenge of cardiovascular calcification. Lithotripsy has been used to successfully treat kidney stones (deposits of hardened calcium) for over 30 years. By integrating lithotripsy into a device that resembles a standard balloon catheter, physicians can prepare, deliver, and treat calcified lesions using a familiar form factor, without disruption to their standard procedural workflow. Our differentiated IVL System works by delivering shockwaves through the entire depth of the artery wall, modifying calcium in the medial layer of the artery, not just at the superficial most intimal layer. The shockwaves crack this calcium and enable the stenotic artery to expand at low pressures, thereby minimizing complications inherent to traditional balloon dilations, such as dissections or tears. Preparing the vessel with IVL facilitates optimal outcomes with other therapies, including stents and drug-eluting technologies. Using IVL also avoids complications associated with atherectomy devices such as dissection, perforation, and embolism. When followed by an anti-proliferative therapy such as a drug-coated balloons or drug-eluting stents, the micro-fractures may enable better drug penetration into the arterial wall and improve drug uptake, thereby improving the effectiveness of the combination treatment.

We market our products to hospitals whose interventional cardiologists, vascular surgeons and interventional radiologists treat patients with PAD and CAD. We have dedicated meaningful resources to establish a direct sales capability in the United States,



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Germany, Austria and Switzerland, which we have complemented with distributors actively selling our products in over 50 countries in North and South America, Europe, the Middle East, Asia, Africa and Australia/New Zealand. We are actively expanding our international field presence through new distributors, as well as additional sales and clinical personnel. In addition, we are adding new U.S. sales territories.

For the three months ended March 31, 2021 and 2020, we generated product revenue of $31.9 million and $15.2 million, respectively, and a loss from operations of $17.5 million and $19.0 million, respectively. For the three months ended March 31, 2021 and 2020, 34% and 49%, respectively, of our product revenue was generated from customers located outside of the United States.

Since inception, we have incurred significant net losses and expect to continue to incur net losses for the foreseeable future. To date, our principal sources of liquidity have been the net proceeds we received through the sale of our common stock in our public offerings, private sales of equity securities and payments received from customers using our products. As of March 31, 2021, we had $177.4 million in cash, cash equivalents and short-term investments and an accumulated deficit of $267.3 million.

Impact of COVID-19 pandemic

The global COVID-19 pandemic presents significant risks to us and has had, and continues to have, far reaching impacts on our business, operations, and financial results and condition, directly and indirectly, including, without limitation, impacts on: the health of our management and employees; our manufacturing, distribution, marketing and sales operations; our research and development activities, including clinical activities; and customer and patient behaviors.

Access to many hospitals and other customer sites continues to be restricted to essential personnel, which negatively impacts our ability to promote the use of our products with physicians. Additionally, many hospitals and other therapeutic centers have in the past suspended, and may suspend or continue to suspend in the future, many elective procedures, resulting in a reduced volume of procedures using our products. Our customer behavior is impacted by the prevalence of COVID-19 and changes in the infection rates in the locations where our customers are located.

Quarantines, shelter-in-place and similar government orders have also impacted and may continue to impact, our third-party manufacturers and suppliers, and could in turn adversely impact the availability or cost of materials, which could disrupt our supply chain.

We have taken a variety of steps to address the impact of the COVID-19 pandemic, while attempting to minimize business disruption. Essential staff in manufacturing and limited support functions have continued to work from our Santa Clara headquarters following appropriate hygiene and social distancing protocols. To reduce the risk to our employees and their families from potential exposure to COVID-19, all other staff in our Santa Clara headquarters have been required to work from home. We have restricted non-essential travel to protect the health and safety of our employees and customers.

We are continuing to monitor the impact of the COVID-19 pandemic on our employees and customers and on the markets in which we operate, and will take further actions that we consider prudent to address the COVID-19 pandemic, while ensuring that we can support our customers and continue to develop our products.

The ultimate extent of the impact of the COVID-19 pandemic on us remains highly uncertain and will depend on future developments and factors that continue to evolve, including the ability of various regions to effectively manage COVID-19, the extent of the continuing resurgence of COVID-19, the efficacy and extent of distribution of vaccines, and the impact of mutations of COVID-19. Most of these developments and factors are outside of our control and could exist for an extended period of time even after the pandemic might end.

Components of Our Results of Operations

Product revenue

Product revenue is primarily from the sale of our IVL catheters.

We sell our products to hospitals, primarily through direct sales representatives, as well as through distributors in selected international markets. For products sold through direct sales representatives, control is transferred upon delivery to customers. For products sold to distributors internationally and products sold to customers that utilize stocking orders, control is transferred upon shipment or delivery to the customer's named location, based on the contractual shipping terms. Additionally, a significant portion of our revenue is generated through a consignment model under which inventory is maintained at hospitals. For consignment inventory, control is transferred at the time the catheters are consumed in a procedure.



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Cost of product revenue

Cost of product revenue consists primarily of costs of components for use in our products, the materials and labor that are used to produce our products, the manufacturing overhead that directly supports production and the depreciation relating to the equipment used in our IVL System that we loan to our hospital customers without charge to facilitate the use of our IVL catheters in their procedures. We depreciate equipment over a three-year period. We expect cost of product revenue to increase in absolute terms as our revenue grows.

Our gross margin has been and will continue to be affected by a variety of factors, primarily production volumes, the cost of direct materials, product mix, geographic mix, discounting practices, manufacturing costs, product yields, headcount and cost-reduction strategies. We expect our gross margin percentage to increase over the long term to the extent we are successful in increasing our sales volume and are therefore able to leverage our fixed costs. We intend to use our design, engineering and manufacturing capabilities to further advance and improve the efficiency of our manufacturing processes, which, if successful, we believe will reduce costs and enable us to increase our gross margin percentage. While we expect gross margin percentage to increase over the long term, it will likely fluctuate from quarter to quarter as we continue to introduce new products and adopt new manufacturing processes and technologies.

Research and development expenses

Research and development ("R&D") expenses consist of applicable personnel, consulting, materials, and clinical trial expenses. R&D expenses include:



    •   certain personnel-related expenses, including salaries, benefits, bonus,
        travel, and stock-based compensation;


    •   cost of clinical studies to support new products and product enhancements,
        including expenses for clinical research organizations, and site payments;


  • materials and supplies used for internal R&D and clinical activities;


    •   allocated overhead including facilities and information technology
        expenses; and


    •   cost of outside consultants who assist with technology development,
        regulatory affairs, clinical affairs and quality assurance.

R&D costs are expensed as incurred. In the future, we expect R&D expenses to increase in absolute dollars as we continue to develop new products, enhance existing products and technologies, and perform activities related to obtaining additional regulatory approvals.

Sales and marketing expenses

Sales and marketing expenses consist of personnel-related expenses, including salaries, benefits, sales commissions, travel, and stock-based compensation. Other sales and marketing expenses consist of marketing and promotional activities, including trade shows and market research. We expect to continue to grow our sales force and increase marketing efforts as we continue commercializing products based on our IVL Technology. As a result, we expect sales and marketing expenses to increase in absolute dollars over the long term.

General and administrative expenses

General and administrative expenses consist of personnel-related expenses, including salaries, benefits, bonus, travel, and stock-based compensation. Other general and administrative expenses consist of professional services fees, including legal, audit and tax fees, insurance costs, outside consultant fees and employee recruiting and training costs. Moreover, we expect to incur additional expenses associated with operating as a public company, including legal, accounting, insurance, exchange listing and SEC compliance and investor relations. As a result, we expect general and administrative expenses to increase in absolute dollars in future periods.



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Results of Operations

Comparison of the Three Months Ended March 31, 2021 and 2020

The following table shows our results of operations for the three months ended March 31, 2021 and 2020:





                                            Three Months Ended
                                                 March 31,
                                                                        Change       Change
                                            2021           2020           $             %
                                                  (in thousands, except percentages)
Revenue:
Product revenue                          $   31,900     $   15,197     $ 16,703       110%
Cost of revenue:
Cost of product revenue                       7,892          5,651        2,241        40%
Gross profit                                 24,008          9,546       14,462       151%
Operating expenses:
Research and development                     10,277         11,890       (1,613 )     (14)%
Sales and marketing                          23,992         10,411       13,581       130%
General and administrative                    7,226          6,224        1,002        16%
Total operating expenses                     41,495         28,525       12,970        45%
Loss from operations                        (17,487 )      (18,979 )      1,492       (8)%
Share in net loss of equity method
investment                                   (5,523 )            -       (5,523 )    (100)%
Interest expense                               (312 )         (277 )        (35 )      13%
Other income (expense), net                    (235 )          504         (739 )    (147)%
Net loss before taxes                       (23,557 )      (18,752 )     (4,805 )      26%
Income tax provision                             44             23           21        91%
Net loss                                 $  (23,601 )   $  (18,775 )   $ (4,826 )      26%


Product revenue

Product revenue increased by $16.7 million, or 110%, from $15.2 million during the three months ended March 31, 2020 to $31.9 million during the three months ended March 31, 2021.

The following table represents our product revenue based on product line:



                     Three Months Ended March 31,
                                                           Change       Change
                       2021                 2020             $            %
                               (in thousands, except percentages)
Peripheral        $       16,141       $        9,081     $  7,060           78 %
Coronary                  15,308                5,767     $  9,541          165 %
Other                        451                  349     $    102           29 %
Product revenue   $       31,900       $       15,197     $ 16,703          110 %

Peripheral product revenue increased by $7.1 million, or 78% from $9.1 million for the three months ended March 31, 2020 to $16.1 million for the three months ended March 31, 2021. The change was due to an increase in purchase volume of our M5 and S4 IVL catheters within the United States and internationally.

Coronary product revenue increased by $9.5 million, or 165% from $5.8 million for the three months ended March 31, 2020 to $15.3 million for the three months ended March 31, 2021. In February 2021 we received U.S. FDA approval for our C2 catheters. The increase in coronary product revenue was primarily due to the commencement of sales in the United States. All coronary product revenue was international for three months ended March 31, 2020.

Other product revenue increased by $0.1 million, or 29% from $0.3 million for the three months ended March 31, 2020 to $0.4 million for the three months ended March 31, 2021. The change was due to an increase in the purchase volume of our IVL generators and other accessories within the United States and internationally.

We sold to a greater number of customers in the United States and to a greater number of distributors internationally for the three months ended March 31, 2021 as compared to the three months ended March 31, 2020. Product revenue, classified by the major



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geographic areas in which our products are shipped, was $21.0 million within the United States and $10.9 million for all other countries in the three months ended March 31, 2021 compared to $7.8 million within the United States and $7.4 million for all other countries in the three months ended March 31, 2020.

Cost of product revenue and gross margin percentage

Cost of product revenue increased by $2.2 million, or 40%, from $5.7 million during the three months ended March 31, 2020 to $7.9 million during the three months ended March 31, 2021. The increase was primarily due to growth in sales volume. Gross margin percentage improved to 75.3% for the three months ended March 31, 2021, compared to 62.8% for the three months ended March 31, 2020. This change in gross margin percentage was primarily due to lower per unit manufacturing costs due to manufacturing volume efficiencies.

Research and development expenses



The following table summarizes our R&D expenses incurred during the periods
presented:



                                             Three Months Ended
                                                  March 31,             Change    Change
                                              2021          2020          $         %
                                                (in thousands, except percentages)

Compensation and personnel-related costs $ 6,098 $ 3,976 $ 2,122 53% Clinical-related costs

                          2,519        4,588     $ (2,069 ) (45)%
Materials and supplies                             27          852     $   (825 ) (97)%
Facilities and other allocated costs            1,032          697     $    335    48%
Outside consultants                               467          499     $    (32 )  (6)%
Other research and development costs              134        1,278     $ (1,144 ) (90)%

Total research and development expenses $ 10,277 $ 11,890 $ (1,613 ) (14)%

R&D expenses decreased by $1.6 million, or 14%, from $11.9 million during the three months ended March 31, 2020 to $10.3 million during the three months ended March 31, 2021. The change was primarily due to a $2.1 million decrease in clinical-related costs primarily due to completion of patient enrollment for the current clinical trials, a $1.1 million decrease in other research and development costs primarily driven by software license costs in the prior year quarter and a $0.8 million decrease in materials and supplies. The decrease was partially offset by an increase of $2.1 million in compensation and personnel-related due to an increase in headcount, and a $0.3 million increase in facilities and other allocated costs due to increased rent and building expenditures.

Sales and marketing expenses

Sales and marketing expenses increased by $13.6 million, or 130%, from $10.4 million during the three months ended March 31, 2020 to $24.0 million during the three months ended March 31, 2021. The change was primarily due to a $11.4 million increase in compensation and personnel-related costs, as a result of increased headcount and increased sales. There was also a $1.4 million increase in marketing and promotional expenses to support the commercialization of our products, a $0.3 million increase in travel related expense, a $0.3 million increase in facilities and other allocated costs due to increased rent and building expenditures and a $0.2 million increase in consulting and general corporate expenses.

General and administrative expenses

General and administrative expenses increased by $1.0 million, or 16%, from $6.2 million during the three months ended March 31, 2020 to $7.2 million during the three months ended March 31, 2021. The change was primarily due to a $1.7 million increase in compensation and personnel-related costs driven by increased headcount and $0.1 million increase in other allocated costs due to increased rent and building expenditures. This increase was partially offset by a $0.7 million decrease in consulting, professional and general corporate expenses, and a $0.1 million decrease in travel related expense.

Other income (expense), net

Other income (expense), net decreased by $739,000, or 147%, from $504,000 in other income, net during the three months ended March 31, 2020 to $235,000 in other expense, net during the three months ended March 31, 2021. The decrease in other income of $760,000 was primarily due to a decrease in interest income attributable to the decreased interest rate environment in the current



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quarter and the timing of the maturities of marketable securities. The decrease in other income was partially offset by the decrease in other expense of $21,000 was primarily driven by foreign exchange gains.

Share in net loss of equity method investment

The increase in share in net loss of equity method investment of $5.5 million for the three months ended March 31, 2021 was due to the Company's 45% ownership in the JV. Refer to Note 9 for further detail.

Liquidity and Capital Resources

To date, our principal sources of liquidity have been the net proceeds we received through the sales of our common stock in our public offerings, private sales of our equity securities, payments received from customers using our products and to a lesser extent proceeds from our debt financings. On March 11, 2019, we completed our IPO, including the underwriters' full exercise of their over-allotment option, selling 6,555,000 shares of our common stock at $17.00 per share. Upon completion of our IPO, we received net proceeds of $99.9 million, after deducting underwriting discounts and commissions and offering expenses. Concurrent with the IPO, we issued 588,235 shares of common stock in a private placement for net proceeds of $10.0 million. On November 15, 2019, we completed a follow-on offering of 2,854,048 shares of our common stock, including 372,267 shares sold pursuant to the underwriters' exercise of their option to purchase additional shares at a public offering price of $36.25 per share. Upon completion of our follow-on offering, we received net proceeds of $96.7 million, after deducting underwriting discounts and commissions and offering expenses. On June 19, 2020, we completed an offering of 1,955,000 shares of our common stock, including 255,000 shares sold pursuant to the underwriters' exercise of their option to purchase additional shares at a public offering price of $45.75 per share. Upon completion of the June 2020 offering, we received net proceeds of $83.4 million, after deducting underwriting discounts and commissions and offering expenses.

On February 11, 2020, we entered into the Amended Credit Facility to the Loan and Security Agreement to refinance our existing term loan, which is accounted for as a modification. The Amended Credit Facility provided us with a supplemental term loan in the amount of $16.5 million. We received net proceeds of $3.3 million, which reflects an additional $4.3 million in principal as of the date of the modification less the final balloon payment fee of $1.0 million.

We have a number of ongoing clinical trials and expect to continue to make substantial investments in these trials and in additional clinical trials that are designed to provide clinical evidence of the safety and efficacy of our products. We intend to continue to make significant investments in our sales and marketing organization by increasing the number of U.S. sales representatives and expanding our international marketing programs to help facilitate further adoption among existing hospital accounts and physicians as well as broaden awareness of our products to new hospitals. We also expect to continue to make investments in R&D, regulatory affairs, and clinical studies to develop future generations of products based on our IVL Technology, support regulatory submissions, and demonstrate the clinical efficacy of our products. Moreover, we expect to continue to incur expenses associated with operating as a public company, including legal, accounting, insurance, exchange listing and SEC compliance, investor relations and other expenses. Because of these and other factors, we expect to continue to incur substantial net losses and negative cash flows from operations for the foreseeable future.

Our future capital requirements will depend on many factors, including:



  • the cost, timing and results of our clinical trials and regulatory reviews;


    •   the cost and timing of establishing sales, marketing, and distribution
        capabilities;


    •   the terms and timing of any other collaborative, licensing, and other
        arrangements that we may establish including any contract manufacturing
        arrangements;


    •   the timing, receipt, and amount, of sales from our current and potential
        products;


  • the degree of success we experience in commercializing our products;


  • the emergence of competing or complementary technologies;


    •   the cost of preparing, filing, prosecuting, maintaining, defending and
        enforcing any patent claims and other intellectual property rights; and


    •   the extent to which we acquire or invest in businesses, products or
        technologies, although we currently have no commitments or agreements
        relating to any of these types of transactions.

We believe that our cash, cash equivalents and short-term investments as of March 31, 2021 will be sufficient to fund our operations for at least the next 12 months from the date of this filing. As of March 31, 2021, we had $177.4 million in cash, cash equivalents and short-term investments and an accumulated deficit of $267.3 million.



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Cash Flows

The following table summarizes our cash flows for the periods indicated:





                                                            Three Months Ended
                                                                March 31,
                                                         2021               2020
                                                              (in thousands)
Cash used in operating activities                    $     (17,303 )   $      (24,189 )
Cash provided by investing activities                       27,086              4,325
Cash (used in) provided by financing activities             (3,200 )            3,930

Net (decrease) increase in cash, cash equivalents $ 6,583 $ (15,934 ) and restricted cash




Operating activities

During the three months ended March 31, 2021, cash used in operating activities was $17.3 million, attributable to a net loss of $23.6 million and a net change in our net operating assets and liabilities of $6.0 million and non-cash charges of $12.3 million. Non-cash charges primarily consisted of $5.5 million in share of net loss of equity method investment, $5.1 million in stock-based compensation, $0.7 million in depreciation and amortization, $0.4 million in amortization of right-of-use assets, $0.4 million in accretion of discount on available-for-sale securities and $0.2 million in amortization of debt issuance costs. The change in our net operating assets and liabilities was primarily due to a $7.9 million increase in accounts receivable due to an increase in sales, $3.3 million increase in inventory, and a $0.1 million increase in other assets, prepaid and other current assets and a $0.3 million decrease in lease liabilities. These changes were partially offset by a $5.6 million increase in accrued and other current liabilities and accounts payable resulting primarily from increases in our operating activities and accrued employee compensation due to an increase in headcount.

During the three months ended March 31, 2020, cash used in operating activities was $24.2 million, attributable to a net loss of $18.8 million and a net change in our net operating assets and liabilities of $8.3 million, partially offset by non-cash charges of $2.9 million. Non-cash charges primarily consisted of $1.9 million in stock-based compensation, $0.4 million in depreciation and amortization, $0.4 million in amortization of right-of-use assets, $0.1 million in amortization of debt issuance costs, and $0.1 million in accretion of discount on available-for-sale securities. The change in our net operating assets and liabilities was primarily due to a $3.8 million increase in inventory and $0.4 million increase in accounts receivable due to an increase in sales, a $1.6 million increase in prepaid expenses and other current assets, a $1.9 million decrease in accrued and other current liabilities primarily due to bonus payout and a $0.5 million decrease in accounts payable.

Investing activities

During the three months ended March 31, 2021, cash provided by investing activities was $27.1 million, attributable to proceeds from maturities of available-for-sale investments of $46.4 million, partially offset by purchase of available-for-sale investments of $15.3 million and purchase of property and equipment of $4.1 million.

During the three months ended March 31, 2020, cash provided by investing activities was $4.3 million, attributable to proceeds from maturities of available-for-sale investments of $25.0 million, partially offset by purchase of available-for-sale investments of $16.0 million and purchase of property and equipment of $4.7 million.

Financing activities

During the three months ended March 31, 2021, cash used by financing activities was $3.2 million, attributable to payment of taxes withheld on net settled vesting of restricted stock units of $5.1 million, partially offset by $1.1 million in proceeds from issuance of common stock under employee stock purchase plan and $0.8 million from proceeds from stock option exercises.

During the three months ended March 31, 2020, cash provided by financing activities was $3.9 million, attributable to net proceeds of $3.3 million from borrowings under new credit facility entered on February 11, 2020, proceeds of $1.1 million from stock option exercises and proceeds of $0.8 million from issuance of shares under our employee stock purchase plan, partially offset by principal payment on our term loan of $1.1 million.



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Contractual Obligations and Commitments

During the three months ended March 31, 2021, there have been no material changes to our contractual obligations from those disclosed in "Management's Discussion and Analysis of Financial Condition and Results of Operations" included in our Annual Report on Form 10-K for the year ended December 31, 2020.

Off-Balance Sheet Arrangements

During the periods presented, we did not have, nor do we currently have, any off-balance sheet arrangements as defined in the rules and regulations of the SEC.

Critical Accounting Policies and Estimates

Management's discussion and analysis of our financial condition and results of operations is based on our consolidated financial statements, which have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP"). The preparation of these consolidated financial statements requires us to make estimates and assumptions for the reported amounts of assets, liabilities, revenue, expenses and related disclosures. Our estimates are based on our historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions and any such differences may be material.

With the exception of the accounting of equity method investments and license revenue as discussed in Note 2, herein, there have been no significant changes in our critical accounting policies and assumptions associated with the greatest potential impact on our consolidated financial statements as disclosed in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020 in the section titled "Management's Discussion and Analysis of Financial Condition and Results of Operations."

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