Forward Looking Statements
This Report, including the documents incorporated by reference in this Report, includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical facts, may be forward-looking statements. These forward-looking statements may be accompanied by such words as "anticipate," "believe," "estimate," "expect," "forecast," "intend," "may," "plan," "potential," "project," "target," "should," "likely," "will" and other words and terms of similar meaning. Each forward-looking statement in this Report is subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statement. Factors that could cause actual results or conditions to differ from those anticipated by these and other forward-looking statements include: our dependence on Impella® products for all of our revenues; our ability to successfully compete against our existing or potential competitors; the acceptance of our products by cardiac surgeons and interventional cardiologists, especially those with significant influence over medical device selection and purchasing decisions; long sales and training cycles associated with expansion into new hospital cardiac centers; reduced market acceptance of our products due to lengthy clinician training process; our ability to effectively manage our growth; our ability to successfully commercialize our products; our ability to obtain regulatory approvals and market and sell our products in certain jurisdictions; enforcement actions and product liability suits relating to off-label uses of our products; unsuccessful clinical trials or procedures relating to products under development; our ability to maintain compliance with regulatory requirements; mandatory or voluntary product recalls; shutdowns of theU.S. federal government; third-party payers' failure to provide reimbursement of our products; changes in healthcare reimbursement systems in theU.S. and other foreign jurisdictions; our failure to comply with healthcare "fraud and abuse" laws; our failure to comply with theU.S. Foreign Corrupt Practices Act and other anti-corruption laws, export control laws, import and customs laws, trade and economic sanctions laws and other laws governing our operations; uncertainties associated with our product development efforts; our ability to increase manufacturing capacity to support continued demand for our products; our or our vendors' failure to achieve and maintain high manufacturing standards; our ability to attract and retain key personnel; our suppliers' failure to provide the components we require; our ability to expand our direct sales activities into international markets; the economic effects of "Brexit"; poor performance of our distributors in the international markets; our ability to sustain profitability; our potential "ownership change" forU.S. federal income tax purposes and our limited utilization of net operating losses from prior tax years; impact of changes in tax laws, including recently enactedU.S. Tax Reform; our ability to develop and commercialize new products or acquire desirable companies, products or technologies; our failure to protect our intellectual property or develop or acquire additional intellectual property; increased risk of material product liability claims; inventory write-downs and other costs due to product quality problems; liabilities due to failure to protect the confidentiality of patient health information; disruptions of critical information systems or material breaches in the security of our systems; risks and liabilities associated with acquisitions of other companies or businesses; changes in accounting standards, tax laws and financial reporting requirements; changes in methods, estimates and judgments we use in applying our accounting policies; liabilities, expenses and restrictions associated with environmental and health safety laws; fluctuations in foreign currency exchange rates; the outcome of ongoing securities class action litigation relating to our public disclosures and other factors discussed in Part I, Item 1A. Risk Factors of our Form 10-K for the year endedMarch 31, 2019 and the filings subsequently filed with or furnished to theSEC . Readers are cautioned not to place undue reliance on any forward-looking statements, which speak only as of the date of this Report. Unless otherwise required by law, the company undertakes no obligation to publicly release the results of any revisions to these forward-looking statements that may be made to reflect events or circumstances that occur after the date of this Report or to reflect the occurrence of unanticipated events.
Overview
We are a leading provider of temporary mechanical circulatory support devices, and we offer a continuum of care to heart failure patients. We develop, manufacture and market proprietary products that are designed to enable the heart to rest, heal and recover by improving blood flow to the coronary arteries and end-organs and/or temporarily assisting the pumping function of the heart. Our products are used in the cardiac catheterization lab, or cath lab, by interventional cardiologists, the electrophysiology lab, the hybrid lab and in the heart surgery suite by cardiac surgeons. A physician may use our devices for patients who are in need of hemodynamic support prophylactically, urgently or emergently before, during or after angioplasty or heart surgery procedures. We believe that heart recovery is the optimal clinical outcome for a patient experiencing heart failure because it enhances the potential for the patient to go home with their own heart, facilitating the restoration of quality of life. In addition, we believe that, for the care of such patients, heart recovery is often the most cost-effective solution for the healthcare system. Our strategic focus and the driver of our revenue growth is the market penetration of our family of Impella® heart pumps. The Impella device portfolio, which includes the Impella 2.5®, Impella CP®, Impella 5.0®, Impella LD®, Impella 5.5® and Impella RP® devices has supported numerous patients worldwide. We expect that all of our product and service revenue in the near future will be from our Impella devices. 26
-------------------------------------------------------------------------------- Our Impella 2.5, Impella CP, Impella 5.0, Impella LD, Impella 5.5 and Impella RP devices haveU.S Food and Drug Administration ("FDA") and CE Mark which allows us to market these devices in theU.S. andEuropean Union . We expect to continue to make additional PMA supplement submissions for our Impella portfolio of devices for additional indications. Our Impella 2.5 and Impella 5.0 devices have regulatory approval from the Ministry Health Labour and Welfare ("MHLW"), inJapan . InMarch 2019 , we receivedPharmaceuticals and Medical Devices Agency ("PMDA") approval from MHLW for our Impella CP heart pump inJapan . We began to sell the Impella CP heart pump as an additional product offering inJapan in the quarter endingSeptember 30, 2019 . Our Existing Products Impella 2.5® The Impella 2.5 device is a percutaneous micro heart pump with an integrated motor and sensors. The device is designed primarily for use by interventional cardiologists to support patients in the cath lab who may require assistance to maintain circulation. The Impella 2.5 heart pump can be quickly inserted via the femoral artery to reach the left ventricle of the heart, where it is directly deployed to draw blood out of the ventricle and deliver it to the circulatory system. This function is intended to reduce ventricular work and provide blood flow to vital organs. The Impella 2.5 heart pump is introduced with normal interventional cardiology procedures and can pump up to 2.5 liters of blood per minute. InMarch 2015 , we received a PMA from the FDA for the use of the Impella 2.5 device during elective and urgent high-risk percutaneous coronary intervention, or PCI, procedures. With this PMA, the Impella 2.5 device became the first FDA approved hemodynamic support device for use during high-risk PCI procedures. Under this PMA, the Impella 2.5 is a temporary (up to six hours) ventricular support device indicated for use during high-risk PCI performed in elective or urgent hemodynamically stable patients with severe coronary artery disease and depressed left ventricular ejection fraction, when a heart team, including a cardiac surgeon, has determined high-risk PCI is the appropriate therapeutic option. Use of the Impella 2.5 device in these patients may prevent hemodynamic instability that may occur during planned temporary coronary occlusions and may reduce periprocedural and post-procedural adverse events. The product labeling allows for the clinical decision by physicians to leave the Impella 2.5 device in place beyond the intended duration of up to six hours should unforeseen circumstances arise. InApril 2016 , the FDA approved a PMA supplement for certain of our devices, including our Impella 2.5 device, to provide treatment for ongoing cardiogenic shock. This PMA supplement covers a set of indications related to the use of the Impella devices in patients suffering cardiogenic shock following acute myocardial infarction, or cardiac surgery, and allows for a longer duration of support. The Impella 2.5 catheter, in conjunction with the Automated Impella Controller, or AIC, was approved as a temporary ventricular support device intended for short term use (? 4 days) and indicated for the treatment of ongoing cardiogenic shock that occurs immediately (< 48 hours) following acute myocardial infarction as a result of isolated left ventricular failure that is not responsive to optimal medical management and conventional treatment measures. The intent of the Impella system therapy is to reduce ventricular work and to provide the circulatory support necessary to allow heart recovery and early assessment of residual myocardial function. Optimal medical management and convention treatment measures include volume loading and use of pressors and inotropes, with or without an intra-aortic balloon pump, or IABP. InSeptember 2016 , we received Pharmaceuticals andMedical Device Agency , or PMDA, approval from theJapanese Ministry of Health, Labour & Welfare , or MHLW, for our Impella 2.5 heart pump to provide treatment of drug-resistant acute heart failure inJapan . InJuly 2017 , we received approval from the MHLW for reimbursement of the Impella 2.5 heart pump. Reimbursement inJapan for the Impella 2.5 is equivalent to our average Impella sales price in theU.S. InFebruary 2018 , we received two expanded PMAs from the FDA for certain of our Impella heart pumps. The first expanded PMA includes the Impella 2.5 heart pump for use on patients with cardiogenic shock associated with cardiomyopathy, including peripartum and postpartum cardiomyopathy. The second expanded PMA includes the Impella 2.5 heart pump for use during elective and high-risk PCI procedures. This expanded PMA confirms Impella support as appropriate in patients with severe coronary artery disease, complex anatomy and extensive comorbidities, with or without depressed ejection fraction. InSeptember 2019 , the Company announced the results of PROTECT III, the ongoing, prospective, single-arm FDA post-approval study for the PMA approval of Impella 2.5 and Impella CP in high-risk PCI. PROTECT III follows the PROTECT II randomized controlled trial. The findings of this interim analysis on 898 patients demonstrates a reduction in the primary endpoint of death, stroke, myocardial infarction and repeat procedures at 90 days with Impella-supported Protected PCI, compared to PROTECT II. The Impella 2.5 device has CE Mark approval in theEuropean Union for up to five days of use and is approved for use in up to 40 countries. The Impella 2.5 device also hasHealth Canada approval which allows us to market the device inCanada . 27
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Impella CP®
The Impella CP device provides blood flow of approximately one liter more per minute than the Impella 2.5 device and is primarily used by either interventional cardiologists to support patients in the cath lab or by cardiac surgeons in the heart surgery suite. InApril 2016 , the FDA approved a PMA supplement for certain of our devices, including our Impella CP device, to provide treatment for ongoing cardiogenic shock. This PMA supplement covers a set of indications related to the use of the Impella devices in patients suffering cardiogenic shock following acute myocardial infarction, or cardiac surgery, and allows for a longer duration of support. The Impella CP catheter, in conjunction with the AIC, was approved as a temporary ventricular support device intended for short term use (? 4 days) and indicated for the treatment of ongoing cardiogenic shock that occurs immediately (< 48 hours) following acute myocardial infarction as a result of isolated left ventricular failure that is not responsive to optimal medical management and conventional treatment measures. The intent of the Impella system therapy is to reduce ventricular work and to provide the circulatory support necessary to allow heart recovery and early assessment of residual myocardial function. Optimal medical management and convention treatment measures include volume loading and use of pressors and inotropes, with or without an intra-aortic balloon pump, or IABP. InDecember 2016 , the FDA expanded a previously received PMA that granted approval for the use of the Impella CP device during elective and urgent high-risk PCI procedures in theU.S. With this indication, the Impella CP and the Impella 2.5 devices provide the only minimally invasive treatment options indicated for use during high-risk PCI procedures in theU.S. InFebruary 2018 , we received two expanded PMAs from the FDA for certain of our Impella heart pumps. The first expanded PMA includes the Impella CP heart pump for use on patients with cardiogenic shock associated with cardiomyopathy, including peripartum and postpartum cardiomyopathy. The second expanded PMA includes the Impella CP heart pump for use during elective and high-risk PCI procedures, and it confirms Impella support as appropriate in patients with severe coronary artery disease, complex anatomy and extensive comorbidities, with or without depressed ejection fraction. These PMAs allow the Impella CP to be used as a temporary (? 6 hours) ventricular support system indicated for use during high risk PCI procedures performed in elective or urgent hemodynamically stable patients with severe coronary artery disease and depressed left ventricular ejection fraction, when a heart team, including a cardiac surgeon, has determined that high-risk PCI is the appropriate therapeutic option. The product labeling allows for the clinical decision by physicians to leave the Impella CP device in place beyond the intended duration of up to six hours should unforeseen circumstances arise. InApril 2018 , we received FDA approval for our Impella CP SmartAssistTM platform. The SmartAssist platform includes optical sensor technology for improved positioning, the use of algorithms that enable improved native heart assessment during the weaning process and cloud-based technology that enables secure, real-time, remote viewing of the Impella console for physicians and hospital staff from anywhere with internet connectivity. The platform is intended to provide enhanced monitoring capability, reduce setup time and improve ease of use for physicians. The SmartAssist platform is also approved under CE Mark in theEuropean Union and other countries that require a CE Mark approval. We have begun a controlled roll-out of the SmartAssist platform at certain hospital sites. InNovember 2018 , we announced the results of our FDA approved prospective multi-center feasibility study, "STEMI Door to Unloading with Impella CP system in acute myocardial infarction" (STEMI DTU). The trial focused on the feasibility and safety of unloading the left ventricle using the Impella CP heart pump prior to primary PCI in patients presenting with ST segment elevation myocardial infarction, or STEMI, without cardiogenic shock with the hypothesis that this will potentially reduce infarct size. The study, which received FDA investigational device approval to proceed inOctober 2016 , enrolled 50 patients at 10 sites. The hypothesis of this novel approach to treating STEMI patients, based on extensive mechanistic research, is that unloading the left ventricle prior to PCI reduces myocardial work load, oxygen demand and also initiates a cardio-protective effect at the myocardial cell level, which may alleviate myocardial damage caused by reperfusion injury at the time of revascularization. The intent of this study was to help refine the protocol and lay the groundwork for a future pivotal study with more sites and patients and will be designed for statistical significance. InApril 2019 , the FDA approved the initiation of the STEMI DTU pivotal randomized controlled trial. The prospective, multi-center, two-arm trial plans to enroll 668 patients undergoing treatment for a STEMI heart attack at up to 60 sites. Half the patients will be randomized to receive delayed reperfusion after 30 minutes of left ventricular unloading with the Impella CP. The other half will receive immediate reperfusion, the current standard of care. The trial will test the hypothesis that unloading the left ventricle for 30 minutes prior to reperfusion will reduce myocardial damage from a heart attack and lead to a reduction in future heart failure related events. We began the trial in the third quarter of fiscal 2020 and we estimate that it will take three to four years to complete enrollment. The trial allows for an adaptive design, which permits adjustments to the study sample size after an interim analysis. InMarch 2019 , we received PMDA approval from MHLW for our Impella CP heart pump inJapan . We began selling the Impella CP heart pump as an additional product offering inJapan in fiscal 2020.
The Impella CP device has CE Mark approval in the
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Impella 5.0® and Impella LD®
The Impella 5.0 and Impella LD devices are percutaneous micro heart pumps with integrated motors and sensors for use primarily in the heart surgery suite. These devices are designed to support patients who require higher levels of circulatory support as compared to the Impella 2.5.
The Impella 5.0 device can be inserted into the left ventricle via a femoral cut down or through the axillary artery. The Impella 5.0 device is passed into the ascending aorta, across the valve and into the left ventricle. The Impella LD device is similar to the Impella 5.0 device, but it is implanted directly into the ascending aorta through an aortic graft. Both devices are normally used by cardiac surgeons in the surgery suite. The Impella 5.0 and Impella LD devices can pump up to five liters of blood per minute, potentially providing full circulatory support. InApril 2016 , the FDA approved a PMA supplement for certain of our devices, including our Impella 5.0 and Impella LD devices, to provide treatment for ongoing cardiogenic shock. This PMA supplement covers a set of indications related to the use of the Impella devices in patients suffering cardiogenic shock following acute myocardial infarction, or cardiac surgery, and allows for a longer duration of support. The Impella 5.0 and LD catheters, in conjunction with the AIC, were approved as temporary ventricular support devices intended for short term use (? 6 days) and indicated for the treatment of ongoing cardiogenic shock that occurs immediately (< 48 hours) following acute myocardial infarction as a result of isolated left ventricular failure that is not responsive to optimal medical management and conventional treatment measures. The intent of the Impella system therapy is to reduce ventricular work and to provide the circulatory support necessary to allow heart recovery and early assessment of residual myocardial function. InSeptember 2016 , we received PMDA approval from theJapanese Ministry Health Labour and Welfare, MHLW, for our Impella 5.0 heart pump to provide treatment of drug-resistant acute heart failure inJapan . InJuly 2017 , we received approval from the Japanese MHLW for reimbursement for the Impella 5.0 heart pump. Reimbursement inJapan for the Impella 5.0 is equivalent to our average Impella sales price in theU.S. InMay 2019 , we received an expanded PMA from the FDA for labeling of the Impella 5.0 and Impella LD for the treatment of cardiogenic shock. The expansion extends the duration of support for each pump from 6 days to 14 days. This approval expands the previous indication for acute myocardial infarction, cardiogenic shock and post-cardiotomy shock, or PCCS, received inApril 2016 , and use of the Impella 5.0 and Impella LD heart pumps to provide treatment for heart failure associated with cardiomyopathy leading to cardiogenic shock, received inFebruary 2018 .
The Impella 5.0 and Impella LD devices have CE Mark approval in the
Impella RP®
The Impella RP is a percutaneous catheter-based axial flow pump that is designed to allow greater than four liters of blood flow per minute and is intended to provide the flow and pressure needed to compensate for right side heart failure. The Impella RP is the first percutaneous single access heart pump designed for right heart support to receive FDA approval. The Impella RP device is approved to provide support of the right heart during times of acute failure for certain patients who have received a left ventricle assist device or have suffered heart failure due to AMI, a failed heart transplant, or following open heart surgery. InSeptember 2017 , we received a PMA from the FDA for the Impella RP heart pump. This latest approval follows the prior FDA humanitarian device exemption, or HDE, received inJanuary 2015 and adds the Impella RP heart pump to our platform of devices with PMAs. The Impella RP heart pump is indicated for providing temporary right ventricular support for up to 14 days in patients with a body surface area ?1.5 m² who develop acute right heart failure or decompensation following left ventricular assist device implantation, myocardial infarction, heart transplant or open-heart surgery. With this approval, the Impella RP heart pump is the only percutaneous temporary ventricular support device that is FDA-approved as safe and effective for right heart failure as stated in the indication. InFebruary 2019 , the FDA released a letter to health care providers on the Impella RP heart pump reiterating to physicians to follow proper protocols for the use of Impella RP. InMay 2019 , the FDA issued an update to itsFebruary 2019 letter to inform the health care community of these interim post-approval study results which validated that the Impella RP heart pump is safe and effective for the treatment of right heart failure. The results showed a 64% survival rate and 90% heart recovery for the subgroup of Impella RP post approval study patients who met the enrollment criteria of Impella RP's premarket clinical studies. Impella RP is the only percutaneous technology with FDA approval designating it as safe and effective for right heart support
The Impella RP device has CE Mark approval for commercial sale in the
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Impella 5.5®
The Impella 5.5 device is designed to be a percutaneous micro heart pump with integrated motors and sensors. Impella 5.5 delivers peak flows of greater than six liters per minute. A motor housing that is thinner and 45% shorter than the Impella 5.0 improves ease of pump insertion through the vasculature. InSeptember 2019 , the Impella 5.5 device received FDA pre-market approval for safety and efficacy in the therapy of cardiogenic shock for up to 14 days in theU.S. The Impella 5.5 pump is being introduced in theU.S. through a controlled rollout at hospitals with established heart recovery protocols beginning in the third quarter of fiscal 2020. Impella 5.5 received CE marking approval inEurope inApril 2018 and was introduced inEurope through a similar controlled rollout. Our Product Pipeline Impella ECP™ The Impella ECP pump is designed for blood flow of greater than three liters per minute. It is intended to be delivered on a standard sized catheter and will include an expandable inflow in the left ventricle. We expect to conduct a first-in-human trial outside of theU.S. in calendar year 2020. The Impella ECP pump is still in development and has not been approved for commercial use or sale. Impella BTR™ The Impella BTR device is designed to be a percutaneous micro heart pump with integrated motors and sensors. The Impella BTR device is designed to be smaller, provide up to one year of hemodynamic support and is expected to allow for greater than five liters of blood flow per minute. The Impella BTR device also includes a wearable driver designed for hospital discharge. The Impella BTR pump is still in development and has not been approved for commercial use or sale.
Critical Accounting Policies and Estimates
Other than the accounting policy changes discussed in "Note 2. Basis of Preparation and Summary of Significant Accounting Policies" to our consolidated financial statements, which is incorporated herein by reference, there have been no significant changes in our critical accounting policies during the three and nine months endedDecember 31, 2019 , as compared to the critical accounting policies 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 fiscal year endedMarch 31, 2019 .
Recently Issued Accounting Pronouncements Not Yet Effective
Information regarding recent accounting pronouncements is included in "Note 2. Basis of Preparation and Summary of Significant Accounting Policies" to our consolidated financial statements and is incorporated herein by reference.
Results of Operations for the Three and Nine Months Ended
The following table sets forth certain condensed consolidated statements of operations data for the periods indicated as a percentage of total revenue:
For the Three Months Ended For the Nine Months Ended December 31, December 31, 2019 2018 2019 2018 Revenue 100.0 % 100.0 % 100.0 % 100.0 % Costs and expenses as a percentage of total revenue: Cost of revenue 18.1 17.0 17.6 16.8 Research and development 11.6 11.9 11.6 12.1 Selling, general and administrative 38.7 40.0 40.6 42.8 Total costs and expenses 68.3 68.9 69.9 71.7 Income from operations 31.7 31.1 30.1 28.3 Other income (loss) and income tax 0.5 8.7 (3.1 ) (4.6 ) provision (benefit) Net income as a percentage of total 31.2 % 22.4 % 27.0 % 32.9 % revenue 30
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Revenue
The following table categorizes our revenue by products and services:
For the Three Months Ended For the Nine Months Ended December 31, December 31, 2019 2018 2019 2018 (in$000 's) (in$000 's) Impella product revenue$ 212,626 $ 193,253 $ 609,430 $ 542,198 Service and other revenue 8,958 7,310 24,795 20,153 Total revenue$ 221,584 $ 200,563 $ 634,225 $ 562,351
The following table categorizes our revenue by geographical location:
For the Three Months Ended For the Nine Months Ended December 31, December 31, 2019 2018 2019 2018 (in$000 's) (in$000 's) U.S. revenue$ 185,569 $ 172,548 $ 533,070 $ 488,386 International revenue 36,015 28,015 101,155 73,965 Total revenue$ 221,584 $ 200,563 $ 634,225 $ 562,351 Impella product revenue encompasses Impella 2.5, Impella CP, Impella 5.0, Impella LD, Impella RP, Impella 5.5 and Impella AIC product sales. Service and other revenue represents revenue earned on service maintenance contracts and preventative maintenance calls. Total revenue for the three months endedDecember 31, 2019 increased by$21.0 million , or 10%, to$221.6 million from$200.6 million for the three months endedDecember 31, 2018 . Total revenue for the nine months endedDecember 31, 2019 increased$71.8 million , or 13%, to$634.2 million from$562.4 million for the nine months endedDecember 31, 2018 . The increase in total revenue was primarily due to higher Impella product revenue from increased utilization in theU.S ,Europe , andJapan and the commercial launch of Impella 5.5 in theU.S. andEurope . Impella product revenue for the three months endedDecember 31, 2019 increased by$19.3 million , or 10%, to$212.6 million from$193.3 million for the three months endedDecember 31, 2018 . Impella product revenue for the nine months endedDecember 31, 2019 increased$67.2 million , or 12%, to$609.4 million from$542.2 million for the nine months endedDecember 31, 2018 . Most of the increase in Impella product revenue was from increased device sales in theU.S. , as we focus on increasing utilization of our disposable catheter products through continued investment in our field organization and physician training programs. Impella product revenue outside of theU.S. also increased primarily due to increased utilization inGermany and our continued launch of Impella inJapan . We expect worldwide revenue from our Impella devices to continue to increase with our recent PMA approvals in theU.S. and our continued focus on Impella device utilization outside of theU.S. , with a primary focus onGermany andJapan . Service and other revenue for the three months endedDecember 31, 2019 increased by$1.7 million , or 23%, to$9.0 million from$7.3 million for the three months endedDecember 31, 2018 . Service and other revenue for the nine months endedDecember 31, 2019 increased$4.6 million , or 23%, to$24.8 million from$20.2 million for the nine months endedDecember 31, 2018 . The increase in service revenue was primarily due to an increase in preventative maintenance service contracts. We have expanded the number of Impella AIC consoles at many of our existing higher volume customer sites and continue to sell additional consoles to new customer sites. We expect revenue growth for service revenue to be consistent with recent history as most of these using sites in theU.S. have service contracts that normally have three year terms.
Costs and Expenses
Cost of Revenue
Cost of revenue for the three months endedDecember 31, 2019 increased by$6.0 million , or 18%, to$40.0 million from$34.0 million for the three months endedDecember 31, 2018 . Gross margin was 82.0% for the three months endedDecember 31, 2019 and 83.0% for the three months endedDecember 31, 2018 . Cost of revenue for the nine months endedDecember 31, 2019 increased by$17.2 million , or 18%, to$111.9 million from$94.7 million for the nine months endedDecember 31, 2018 . Gross margin was 82.4% for the nine months endedDecember 31, 2019 and 83.2% for the nine months endedDecember 31, 2018 . 31 -------------------------------------------------------------------------------- The increase in cost of product revenue was related to higher demand for our Impella devices and higher production volume and costs to support demand for our Impella devices. The decrease in gross margin for the three and nine months endedDecember 31, 2019 was primarily due to increased investment in direct labor and overhead as we expand our manufacturing capacity in both our manufacturing facilities in theU.S. andGermany and our initial launch of Impella 5.5 and Impella CP SmartAssist, which enlists optical sensor technology in our pumps.
We expect that our ongoing investment in manufacturing capacity and the expansion of our Impella CP SmartAssist platform may decrease gross margin slightly in the near future.
Research and Development Expenses
Research and development expenses for the three months endedDecember 31, 2019 increased by$1.7 million , or 7%, to$25.7 million from$24.0 million for three months endedDecember 31, 2018 . Research and development expense for the nine months endedDecember 31, 2019 increased$5.4 million , or 8%, to$73.4 million from$68.0 million for the nine months endedDecember 31, 2018 . The increase in research and development expenses was primarily due to product development initiatives relating to our existing and pipeline products, such as optical sensor technology related to the development of Impella 5.5® and Impella ECPTM devices, the expansion of our engineering organization, increased clinical spending primarily related to our ongoing clinical studies, including the STEMI DTU pivotal randomized controlled trial, and our continued focus on quality initiatives for our Impella products.
We expect research and development expenses to continue to increase as we continue to increase clinical spending related to our ongoing and potential future clinical studies and as we continue to focus on engineering initiatives to improve our existing products and develop new technologies.
Selling, General and Administrative Expenses
Selling, general and administrative expenses for the three months endedDecember 31, 2019 increased by$5.5 million , or 7%, to$85.7 million from$80.2 million for the three months endedDecember 31, 2018 . Selling, general, and administrative expenses for the nine months endedDecember 31, 2019 increased$17.4 million , or 7%, to$257.7 million from$240.3 million for the nine months endedDecember 31, 2018 . The increase in selling, general and administrative expenses was primarily due to the hiring of additional field sales and clinical personnel in theU.S. ,Germany andJapan , increased spending on marketing initiatives as we continue to educate physicians on the benefits to patients of hemodynamic support with our Impella products, and legal expenses related to ongoing patent litigation and other legal matters discussed in "Note 13. Commitments and Contingencies" to our consolidated financial statements, partially offset by lower stock-based compensation expense. We expect to continue to increase our expenditures on sales and marketing activities, with particular investments in field sales and clinical personnel with cath lab expertise to drive recovery awareness for acute heart failure patients. We also plan to increase our marketing, service and training investments in theU.S. for our Impella devices and as we continue our expansion inGermany ,Japan and other new markets outside of theU.S. We expect to continue to have significant stock-based compensation expense in the future. We also expect to continue to incur significant legal expenses for the foreseeable future related to ongoing patent litigation, securities class action litigation and other legal matters discussed in "Note 13. Commitment and Contingencies" to our consolidated financial statements.
Income Tax Provision
Our income tax provision was$27.8 million and$19.6 million for the three months endedDecember 31, 2019 and 2018, respectively and our income tax provision was$46.3 million for the nine months endedDecember 31, 2019 and an income tax benefit of$20.2 million for the nine months endedDecember 31, 2018 . Our effective tax rate was 28.7% and 30.5% for the three months endedDecember 31, 2019 and 2018, respectively, and 21.3% and (12.3)% for the nine months endedDecember 31, 2019 and 2018, respectively. The increase in the effective income tax rate was due primarily to lower excess tax benefits recognized associated with stock-based awards of$0.5 million and$1.7 million as an income tax benefit for the three months endedDecember 31, 2019 and 2018, respectively, and of$13.8 million and$68.5 million recorded as an income tax benefit for the nine months endedDecember 31, 2019 and 2018, respectively. These recognized excess tax benefits resulted from restricted stock units that vested or stock options that were exercised during the three and nine months endedDecember 31, 2019 , respectively. Net Income For the three months endedDecember 31, 2019 , net income was$69.2 million , or$1.53 per basic share and$1.51 per diluted share, compared to$44.9 million , or$1.00 per basic share and$0.97 per diluted share, for three months endedDecember 31, 2018 . For the nine months endedDecember 31, 2019 , net income was$171.2 million , or$3.79 per basic share and$3.73 per diluted share, compared to$185.1 million , or$4.13 per basic share and$4.01 per diluted share for the nine months endedDecember 31, 2018 . 32
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Our net income for three and nine months ended
Net income for the three months endedDecember 31, 2019 included excess tax benefits related to stock-based awards of$0.5 million , or$0.01 per basic and diluted share, and a$17.8 million unrealized gain, net of tax, or$0.39 per basic and diluted share, related to our investment in Shockwave Medical. Net income for the nine months endedDecember 31, 2019 included excess tax benefits related to stock-based awards of$13.8 million , or$0.30 per basic and diluted share, and a$13.3 million unrealized gain, net of tax, or$0.29 per basic and diluted share, related to our investment in Shockwave Medical. Net income for the three months endedDecember 31, 2018 , included excess tax benefits of$1.7 million , or$0.04 per basic share and diluted share. Net income for the nine months endedDecember 31, 2018 included excess tax benefits of$68.5 million , or$1.53 per basic share and$1.48 per diluted share.
Liquidity and Capital Resources
AtDecember 31, 2019 , our total cash, cash equivalents and marketable securities totaled$595.5 million , an increase of$82.1 million compared to$513.4 million atMarch 31, 2019 . The increase in our cash, cash equivalents and marketable securities during the nine months endedDecember 31, 2019 was primarily due to cash flows provided by operating activities offset by cash used to fund our stock repurchase program, annual bonuses, taxes paid related to net settlement of vesting of stock awards during the period and purchases of property and equipment.
Following is a summary of our cash flow activities:
For the Nine Months Ended December 31, 2019 2018 Net cash provided by operating activities$ 228,327 $ 181,806 Net cash used for by investing activities (135,416 ) (80,701 ) Net cash used for financing activities (95,950 ) (58,794 ) Effect of exchange rate changes on cash (12 ) (1,105 )
Net (decrease) increase in cash and cash equivalents
Cash Provided by Operating Activities
For the nine months endedDecember 31, 2019 , cash provided by operating activities consisted of net income of$171.2 million , adjustments for non-cash items of$70.2 million and cash used in working capital of$13.1 million . The change in net income was primarily due to higher revenue from increased utilization of our Impella devices and an unrealized gain related to our investment in Shockwave Medical. Adjustments for non-cash items consisted primarily of$37.0 million of stock-based compensation expense,$30.6 million in deferred tax provision,$14.4 million of depreciation and amortization expense,$2.7 million in accretion on marketable securities, and$4.0 million in inventory and other write-downs. The change in cash from working capital included a$13.3 million increase in inventory to support demand for our Impella devices,$10.3 million increase in accounts receivable due to timing of collections offset by a$12.0 million increase in accounts payable and accrued expenses and a$2.8 million increase in deferred revenue. For the nine months endedDecember 31, 2018 , cash provided by operating activities consisted of net income of$185.1 million , adjustments for non-cash items of$29.8 million and cash used in working capital of$33.1 million . The increase in net income was primarily due to higher revenue from increased utilization of our Impella devices. Adjustments for non-cash items consisted primarily of$43.8 million of stock-based compensation expense, a$26.0 million change in deferred tax provision,$9.9 million of depreciation and amortization expense,$3.2 million in inventory and other write-downs, and$1.6 million in accretion on marketable securities. Cash used in working capital consisted of a$19.3 million increase in accounts receivable due to increased sales and a$26.5 million increase in inventory to support growing demand for our Impella devices, offset by an$11.8 million increase in accounts payable and accrued expenses primarily due to increased expenditures.
Cash Used for Investing Activities
For the nine months endedDecember 31, 2019 , net cash used for investing activities primarily consisted of$81.1 million in maturities (net of purchases) of marketable securities and$33.5 million used in the purchase of property and equipment primarily related to continued expansion of manufacturing capacity, office space and research development facilities inDanvers and Aachen,Germany . We invested an additional$20.9 million of investments in other assets and intangible assets during fiscal 2020. 33 -------------------------------------------------------------------------------- For the nine months endedDecember 31, 2018 , net cash used for investing activities primarily consisted of$14.8 million in maturities (net of purchases) of marketable securities and$35.5 million for the purchase of property and equipment primarily related to continued expansion of manufacturing capacity, office space and research development facilities inDanvers, Massachusetts and Aachen,Germany . We also made$30.4 million of investments in other assets and intangible assets.
Cash Used for Financing Activities
For the nine months endedDecember 31, 2019 , net cash used for financing activities included$41.6 million in payments in lieu of issuance of common stock for payroll withholding taxes upon vesting of certain equity awards and$59.9 million for the repurchase of our common stock. These amounts were offset by$3.2 million in proceeds from the exercise of stock options and$2.4 million in proceeds from the issuance of stock under the employee stock purchase plan.
For the nine months ended
Operating Capital and Liquidity Requirements
We believe that cash receipts from our revenue together with existing resources will be sufficient to fund our operations for at least the next twelve months, exclusive of activities involving any future acquisitions of products or companies that complement or augment our existing line of products. Our primary liquidity requirements are to fund the expansion of our commercial and operational infrastructure, increase our manufacturing capacity, increase our inventory levels in order to meet growing customer demand for our Impella devices, fund new product development initiatives, continue our controlled commercial launch of Impella devices inJapan and expand to potential new markets, increase clinical spending, cover legal expenses related to ongoing patent litigation, cover payments in lieu of issuing of common stock for payroll withholding taxes upon vesting of certain equity awards, fund our stock repurchase program, fund business development initiatives and provide for general working capital needs. To date, we have primarily funded our operations through product sales and, to a lesser extent the sale of equity securities. Capital expenditures for fiscal 2020 are estimated to range from$40 million to$60 million , including additional capital expenditures for manufacturing capacity expansions in ourDanvers and Aachen facilities, additional office space, building and leasehold improvements and information systems development projects. Our liquidity is influenced by our ability to sell our products in a competitive industry and our customers' ability to pay for our products. Factors that may affect liquidity include our ability to penetrate the market for our products, our ability to maintain or reduce the length of the selling cycle for our products, capital expenditures, investments in collaborative arrangements with other partners, and our ability to collect cash from customers after our products are sold. We also expect to continue to incur legal expenses for the foreseeable future related to ongoing patent litigation and other legal matters. We continue to review our short-term and long-term cash needs on a regular basis. AtDecember 31, 2019 we had no long-term debt outstanding. InAugust 2019 , our Board of Directors authorized a stock repurchase program for up to$200 million of shares of its common stock. Under this stock repurchase program, we are authorized to repurchase shares through open market purchases, privately negotiated transactions or otherwise in accordance with applicable federal securities laws, including through Rule 10b5-1 trading plans and under Rule 10b-18 of the Exchange Act. The stock repurchase program has no time limit and may be suspended for periods or discontinued at any time. The Company is funding the stock repurchase program with its available cash and marketable securities. ThroughDecember 31, 2019 , the Company has repurchased a total of 318,361 shares for$59.9 million under the stock repurchase program. The remaining authorization under the stock repurchase program was$140.1 million as ofDecember 31, 2019 .
The following table provides share repurchase activities:
For the Three Months Ended For the Nine Months Ended December 31, December 31, 2019 2018 2019 2018 Shares repurchased 137,432 - 318,361 - Average price per share$181.94 -$188.08 - Value of shares repurchased (in millions)$25.0 -$59.9 - 34
-------------------------------------------------------------------------------- Marketable securities atDecember 31, 2019 andMarch 31, 2019 consisted of$477.6 million and$392.4 million , respectively, held in investment funds that are invested inU.S. Treasury , government-backed and corporate debt securities, and commercial paper. As ofDecember 31, 2019 , the Company is not a party to any interest rate swaps and have no exposure to auction rate securities markets. Cash and cash equivalents held by our foreign subsidiaries totaled$20.9 million and$25.2 million atDecember 31, 2019 andMarch 31, 2019 , respectively. Our operating income outside theU.S. is deemed to be permanently reinvested in foreign jurisdictions. Since most of our cash and cash equivalents held by foreign subsidiaries which are disregarded entities for domestic tax purposes, any repatriation of foreign subsidiary earnings to theU.S. would likely have a nominal tax impact.
Off-Balance Sheet Arrangements
We had no off-balance sheet arrangements or guarantees of third-party obligations during the periods presented. An "off-balance sheet arrangement" generally entails a transaction, agreement or other contractual arrangement to which an entity unconsolidated with us, is a party under which we have any obligation arising under a guarantee contract, derivative instrument or variable interest or a retained or contingent interest in assets transferred to such entity or similar arrangement that serves as credit, liquidity or market risk support for such assets.
Contractual Obligations and Commercial Commitments
We have various contractual obligations, which are recorded as liabilities in our consolidated condensed financial statements. Other items are not recognized as liabilities in our consolidated condensed financial statements but are required to be disclosed. There have been no material changes, outside of the ordinary course of business, to our contractual obligations as previously disclosed in our Annual Report on Form 10-K for the fiscal year endedMarch 31, 2019 . 35
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