You should read the following discussion and analysis of our financial condition and results of operations in conjunction with our unaudited condensed consolidated financial statements and related notes included in Part I, Item 1 of this report.

Overview

We are a growing diagnostics company with proprietary molecular and bioinformatics technology that we deploy to change the management of genetic disease worldwide. Our goal is to develop and commercialize non- or minimally-invasive tests to evaluate risk for a wide range of genetic conditions, such as Down syndrome, the results of which can enable early detection, diagnosis and treatment. Our technology has been proven clinically and commercially in the prenatal testing space. We have begun translating this success into other areas, and we are leveraging our core expertise to develop products for oncology diagnostic applications as well as transplant rejection and organ health. We seek to enable even wider adoption of our technology through our global cloud-based distribution model. In addition to our direct sales force in the United States, we have a global network of over 100 laboratory and distribution partners, including many of the largest international laboratories.

We offer a comprehensive suite of thirteen products in reproductive health and prenatal testing - thirteen molecular diagnostic tests and a newborn stem cell banking offering to complement our prenatal testing portfolio - as well as our offerings in oncology and organ health, and our Constellation cloud-based platform. We generate a majority of our revenues from the sale of Panorama, our non-invasive prenatal test, "NIPT," as well as our Horizon Carrier Screening ("HCS") tests. Commercialization of our products consisted of Spectrum Preimplantation Genetic Screening in 2009 and Spectrum Preimplantation Genetic Diagnosis in 2010; Anora Products of Conception ("POC") in 2010; our non-invasive prenatal paternity test in 2011; Horizon Carrier Screening in 2012; Panorama NIPT in 2013; our microdeletions panel for Panorama in 2014; Constellation in 2015; Vistara, Signatera (RUO) and Panorama for twin pregnancies in 2017; and full-scale commercial launches of the CLIA version of Signatera and of Prospera in 2020.

In the quarter ended June 30, 2020, we processed most of our tests in our laboratory certified under the Clinical Laboratory Improvement Amendments of 1988 ("CLIA") in San Carlos, California. A portion of our HCS, Vistara, and Signatera testing is performed by third-party laboratories. Our customers include independent laboratories, national and regional reference laboratories, medical centers and physician practices for our screening tests; and research laboratories and pharmaceutical companies for our Signatera technology. We market and sell our prenatal screening tests both through our direct sales force and through our laboratory distribution partners. We bill clinics, laboratory distribution partners, patients and insurance payers for the tests we perform. In cases where we bill laboratory distribution partners, our partners in turn bill clinics, patients and insurers. The majority of our revenue comes from insurers which we have in-network contracts reimburse for NIPT procedures based on positive coverage determinations, which means that the insurer has determined that NIPT in general is medically necessary for this category of patient. In the United States, the majority of insurance providers provide positive NIPT coverage.

The principal focus of our commercial operations currently is to distribute molecular diagnostic tests through both our direct sales force and laboratory distribution partners, and our Constellation licensees under our cloud-based distribution model. The number of tests that we accession is a key indicator that we use to assess our business. A test is accessioned when we receive the test at our laboratory, the relevant information about the test is entered into our computer system and the test sample is routed into the appropriate sample flow. This number is a subset of the number of tests that we process, which includes tests distributed through our Constellation licensees. The number of tests that we process is a key metric as it tracks overall volume growth, particularly as our laboratory partners may transition from sending samples to our laboratory to our cloud-based distribution model. During the six months ended June 30, 2020, we processed 469,500 tests, comprised of approximately 444,000 tests accessioned in our laboratory, compared to approximately 394,700 tests processed during the six months ended June 30, 2019, comprised of approximately 368,300 tests accessioned in our laboratory. This increase in volume represents continuous commercial growth of Panorama and HCS, both as tests performed in our laboratory as well as through our Constellation software platform.



                                       37

  Table of Contents

The percent of our revenues attributable to our U.S. direct sales force for the six months ended June 30, 2020 was 86%, an increase from 82% for the six months ended June 30, 2019. The percent of our revenues attributable to U.S. laboratory distribution partners for the six months ended June 30, 2020 was 7%, an increase from 5% in the same period in the prior year. Our ability to increase our revenues and gross profit will depend on our ability to further penetrate the U.S. market with our direct sales force. The percent of our revenues attributable to international laboratory distribution partners and other international sales for the six months ended June 30, 2020 was 7%, down from 13% for the six months ended June 30, 2019, due primarily to the increase in US direct sales as a percentage of revenue.

In addition to distributing molecular diagnostic tests to be performed at our laboratory, either directly or through our laboratory distribution partners, we also establish licensing arrangements with laboratories under our cloud-based distribution model, whereby our laboratory licensees run the molecular workflows themselves and then access our bioinformatics algorithms through our cloud-based Constellation software. This cloud-based distribution model results in lower revenues and gross profit per test than in cases where we process a test ourselves; however, because we don't incur the costs of processing the tests, our costs per test under this model are also lower. We began entering into these licensing arrangements starting in the fourth quarter of 2015.

For the six months ended June 30, 2020, total revenues were $180.5 million, compared to $141.2 million in the six months ended June 30, 2019. Revenues generated from our genetic testing accounted for $167.5 million or 93% of total revenues for the six months ended June 30, 2020; $128.5 million or 91% of total revenues for the six months ended June 30, 2019. For the periods ended June 30, 2020 and 2019, there were no customers exceeding 10% of the total revenues on an individual basis. Revenues from customers outside the United States were $13.0 million, representing 7% of total revenues for the six months ended June 30, 2020. For the six months ended June 30, 2019, revenues from customers outside the United States were $18.5 million, representing approximately 13% total revenues. Most of our revenues have been denominated in U.S. dollars but we began to generate revenue in foreign currency in 2015, primarily denominated in Euros and Singapore Dollars.

Our net loss for the six months ended June 30, 2020 and 2019, were $95.0 million and $66.5 million, respectively. This included non-cash stock compensation expense of $19.4 million and $9.9 million for the six months ended June 30, 2020 and 2019, respectively. As of June 30, 2020, we had an accumulated deficit of $794.6 million.

COVID-19 Impact

The COVID-19 pandemic continues to present a global public health and economic challenge and is affecting our business operations and the U.S. and other major economies and financial markets. The spread of COVID-19 has caused us to modify our business practices (including employee travel, mandating that all non-essential personnel work from home, temporary closures of our offices, and cancellation of physical participation in sales activities, meetings, events and conferences), and we may take further actions as may be required by government authorities or that we determine are in the best interests of our employees, customers and business partners. Such actions could also impact our ability to fully integrate businesses we may acquire in the future. There is no certainty that such actions will be sufficient to mitigate the risks posed by the virus or otherwise be satisfactory to government authorities. If significant portions of our workforce, and particularly our laboratory staff, are unable to work effectively, including due to illness, quarantines, social distancing, government actions or other restrictions in connection with the COVID-19 pandemic, our operations will be impacted.

The extent to which the COVID-19 pandemic impacts our business, results of operations and financial condition will depend on future developments, which are highly uncertain and cannot be predicted, including, but not limited to, the duration and spread of the pandemic, its severity, the actions to contain the virus or address its impact, and how quickly and to what extent normal economic and operating activities can resume. The COVID-19 pandemic could limit the ability of our customers, suppliers and business partners to perform under their contracts with us, including third-party payers' ability to make timely payments to us during and following the pandemic. We may also experience a shortage of laboratory supplies and reagents or a suspension of services from other laboratories or third parties. We have also become increasingly dependent on growing and maintaining a network of mobile phlebotomy specialists who can provide testing capabilities, as many consumers are unable to visit clinics, hospitals or other testing facilities as a result of the COVID-19 pandemic. Even after the COVID-19 pandemic has subsided, we may continue to experience an adverse impact to our business because of its global economic impact, including any recession that has occurred or may occur in the future.



                                       38

Table of Contents

Specifically, difficult macroeconomic conditions as a result of COVID-19, such as decreases in per capita income and level of disposable income, increased and prolonged unemployment, a decline in consumer confidence, as well as limited or significantly reduced points of access of our products, could have a material adverse effect on the demand for some of our products, such as our products targeted for the IVF market. Decreased demand for our tests, particularly in the United States, could negatively affect our overall financial performance. A significant portion of our revenue is concentrated in the United States, where the impact of COVID-19 has been significant, and the potential decrease in demand for our tests could have a disproportionately negative impact on our business and financial results.

Our test volumes in the second quarter of 2020 remained relatively flat from the previous quarter, however, test volumes may by adversely impacted by the COVID-19 pandemic. The average selling price of our genetic tests in second quarter of 2020 decreased slightly compared to the prior quarter which resulted in a negative impact to the results of operations. We cannot predict volatility of the volumes and selling process of our genetic tests. While it is too early to predict the full impact COVID-19 will have on our business, we expect it to potentially have an adverse impact on our financial results for at least the next quarter and potentially the full year, depending upon the timing of any lifting of COVID-19 limitations on the U.S. healthcare system and general economic recovery. In response to the COVID-19 pandemic, we have implemented measures to protect the health of our employees and to support the functionality of our laboratories. We will continue to support and incur expenditures towards COVID-19 prevention and employee safety.

Components of the Results of Operations

Revenues

We generate revenues from the sale of our genetic tests, primarily from the sale of our Panorama and HCS tests. Our two primary distribution channels are our direct sales force and our laboratory partners. In cases where we promote our tests through our direct sales force, we generally bill directly to a patient, clinic or insurance carrier, or a combination of the insurance carrier and patient for the fees.

Sales of Panorama, HCS, Vistara, Anora, PGS, PGD, Signatera CLIA, and Prospera tests are recorded as product revenues. Revenues recognized from tests processed through our Constellation software platform, and revenue recognized from the Qiagen, BGI Genomics, and Foundation Medicine agreements (collectively the "Strategic Partnership Agreements"), and Signatera research use only ("RUO") offering are reported in licensing and other revenues.

In cases where we sell our tests through our laboratory partners, the majority of our laboratory partners bill the patient, clinic or insurance carrier for the performance of our tests, and we are entitled to either a fixed price per test or a percentage of their collections. We also recognize licensing revenues through the licensing and the provisioning of services to support the use of our proprietary technology by licensees under our cloud-based distribution model. As of June 30, 2020, we are recognizing revenues on 15 licensing and service arrangements with laboratories under our cloud-based distribution model from which we recognized revenue from in the six months ended June 30, 2020.

Our ability to increase our revenues will depend on our ability to further penetrate the domestic and international markets and, in particular, generate sales through our direct sales force, develop and commercialize additional tests, obtain reimbursement from additional third-party payers and increase our reimbursement rate for tests performed. In particular, our financial performance depends on reimbursement for Panorama in the average risk population and for microdeletions. The use of Panorama in the average risk population is not yet broadly reimbursed, although many third-party payers have begun to reimburse for this. Many third-party payers do not currently reimburse for microdeletions screening, as further discussed in the risk factor entitled "Reimbursement and Regulatory Risks Related to Our Business- If we are unable to expand or maintain third-party payer coverage and reimbursement for Panorama and our other tests, or if we are required to refund any reimbursements already received, our revenues and results of operations would be adversely affected," in part because there is currently limited published data on the performance of microdeletions screening tests. A new current procedure terminology ("CPT") code for microdeletions went into effect beginning January 1, 2017. We have experienced low average reimbursement rates thus far for microdeletions testing under this new code, and we expect that this new code will cause, at least in the near term, our microdeletions reimbursement to remain low, due to third-party payers declining to reimburse and through reduced reimbursement under the new code. This has had, and we expect it will continue to have, an adverse impact on our revenues. In addition, a new CPT code for expanded carrier screening went into effect beginning



                                       39

  Table of Contents

January 1, 2019, and has had, and may continue to have, an adverse effect on our reimbursement rates for our broader Horizon carrier screening panel for which we previously primarily received reimbursement on a per-condition basis, as those tests may be reimbursed as a combined single panel instead of as multiple individual tests. Because our revenues from Horizon continue to represent an increasing proportion of our overall revenues, a decline in our reimbursement rates for, and therefore our average selling price of, Horizon, could result in a decline in our overall revenue.

Our financial performance has also been impacted by our larger in-network coverage with third-party payers, which we believe is crucial to our growth and long-term success. However, because the negotiated fees under our contracts with third-party payers are typically lower than the list price of our tests, as we enter into additional in-network contracts with insurance providers, our average reimbursement per test may decrease as compared to out-of-network contracts. While we expect the reduction in average reimbursement per test from in-network pricing to reduce our revenues and gross margins in the near term, in-network pricing is more predictable than out-of-network pricing, and we intend to continue to mitigate the impact by driving more business from our most profitable accounts. In addition, our strategy to offer our tests to laboratory licensees via our Constellation cloud-based software platform may also cause our revenues to decrease because we do not process the tests and perform the molecular biology analysis in our own laboratory under this model, and therefore are not able to charge as high an amount, and as a result realize lower revenues per test than when we perform the entire test ourselves. However, cost of licensing and other revenues for the Constellation software platform are relatively low, and therefore, its associated gross margin is higher.

Cost of Product Revenues

The components of our cost of product revenues are material and service costs, impairment charges associated with testing equipment, personnel costs, including stock-based compensation expense, equipment and infrastructure expenses associated with testing samples, electronic medical records, order and delivery systems, shipping charges to transport samples, costs incurred from outsourcing our tests to third parties, and allocated overhead such as rent, information technology costs, equipment depreciation and utilities. Costs associated with performing tests are recorded when the test is accessioned. We expect cost of product revenues in absolute dollars to increase as the number of tests we perform increases.

However, having rapidly achieved scale, we have increased our focus on more efficient use of labor, automation, and DNA sequencing. For example, we updated the molecular and bioinformatics process for Panorama to further reduce the sequencing reagents, test steps and associated labor costs required to obtain a test result, while increasing the accuracy of the test to allow it to run with lower fetal fraction input. These improvements also reduced the frequency of the need to require blood redraws from the patient.

Cost of Licensing and Other Revenues

The components of our cost of licensing and other revenues are material costs associated with test kits sold to Constellation clients, development and support services relating to our Strategic Partnership Agreements, and costs associated with specimens and Whole Exome Sequencing ("WES") from both in-house and by third party providers, as well as labor costs, relating to our Signatera (RUO) offering.

We currently have 15 revenue generating licensing and service agreements with laboratories and continue to have active discussions with many other potential licensees under our Constellation distribution model. We consider our cost of licensing and other revenues for the Constellation software platform to be relatively low, and therefore we expect its associated gross margin is higher. We expect our cost of licensing will increase in relation to volume growth.

Critical Accounting Policies

Our management's discussion and analysis of our financial condition and results of operations is based on our financial statements, which have been prepared in accordance with generally accepted accounting principles in the United States. The preparation of these financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported revenue generated, and expenses incurred during the reporting periods. Our estimates are based on our



                                       40

Table of Contents

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. We consider our critical accounting policies and estimates to be revenue recognition, leases, inventory, fair value measurements including the valuation of 2.25% Convertible Senior Notes due 2027 (the "Convertible Notes"), and stock-based compensation.

Recent Accounting Pronouncements

There are no recent accounting pronouncements that have a material impact to our condensed consolidated financial statements. See Note 2, Summary of Significant Accounting Policies, of Item 1, Financial Statement, for recently adopted accounting pronouncements.

Revenue Recognition

We recognize revenues when, or as, performance obligations in the contracts are satisfied, in the amount reflecting the expected consideration to be received from the goods or services transferred to the customers.

Product Revenues

Product revenues are derived from contracts with insurance carriers, laboratory partners and patients in connection with sales of prenatal genetic tests. The majority of our revenues are derived from Panorama NIPT, HCS, and to a lesser extent, other genetic tests including Signatera CLIA and Prospera. We enter into contracts with insurance carriers with primarily payment terms related to tests provided to the patients who have health insurance coverage. Insurance carriers are considered to be third-party payers on behalf of the patients, and the patients are considered as the customers who receive genetic test services. Tests may be billed to insurance carriers, patients, or a combination of insurance carriers and patients. Further, we sell tests to a number of domestic and international laboratory partners and identify the laboratory partners as customers provided that there is a test services agreement between us and them.

Licensing and Other Revenues

We recognize licensing revenues from our Constellation cloud-based distribution model, pursuant to which we grant licenses to laboratories to access our proprietary bioinformatics algorithms through our cloud-based software to analyze the results of molecular workflows that such licensees perform in their laboratories. In addition, the royalties we receive from our arrangement with a prenatal paternity licensee are recognized Constellation revenues.

We also recognize revenues from our Signatera (RUO) offering, which is for research use only to cancer researchers and biopharmaceutical companies. We enter into agreements with pharmaceutical companies to utilize our Signatera tests typically to study new cancer treatments or to validate the outcomes of clinical trials for which the pharmaceutical companies are identified as customers.

We also recognize revenues from our Strategic Partnership Agreements. The performance obligations are unique in each agreement and would typically require the license of intellectual property, development services, support services, and future test work. We also record revenues from the sale of IVD kits in licensing and other revenues.





                                       41

  Table of Contents

Results of Operations

Comparison of the three months ended June 30, 2020 and 2019




                                        Three Months Ended
                                            June 30,                    Change
                                        2020          2019         Amount      Percent
(in thousands except percentages)
Revenues
Product revenues                     $   80,414    $   65,099    $   15,315       23.5 %
Licensing and other revenues              6,058         9,256       (3,198)     (34.6)
Total revenues                           86,472        74,355        12,117       16.3
Cost and expenses
Cost of product revenues                 42,731        41,382         1,349        3.3

Cost of licensing and other revenues 4,208 2,443 1,765 72.2 Research and development

                 23,005        12,124        10,881       89.7

Selling, general and administrative 68,188 47,042 21,146 45.0 Total cost and expenses

                 138,132       102,991        35,141       34.1
Loss from operations                   (51,660)      (28,636)      (23,024)       80.4
Interest expense                        (4,038)       (2,721)       (1,317)       48.4
Interest and other income, net            1,924           836         1,088      130.1
Loss on debt extinguishment             (5,848)             -       (5,848)      100.0
Loss before income taxes               (59,622)      (30,521)      (29,101)       95.3
Income tax expense                         (15)       (1,895)         1,880     (99.2)
Net loss                             $ (59,637)    $ (32,416)    $ (27,221)       84.0 %



Revenues


Total revenues are comprised of product revenues, which are primarily driven by sales of our Panorama and HCS tests, and licensing and other revenues, which primarily includes development licensing revenue, licensing of our Constellation software to our licensees, and revenues from our Signatera (RUO) offering. Total revenues increased by $12.1 million, or 16.3%, when compared to the three months ended June 30, 2019.

We derive our revenues from tests based on units reported to customers-tests delivered with a result. All reported units are either accessioned in our laboratory or processed outside of our laboratory. As noted in "Overview," the number of tests that we process is a key metric as it tracks overall volume growth. During the three months ended June 30, 2020, total reported units were approximately 220,100, comprised of approximately 208,400 tests reported in our laboratory. Comparatively, during the three months ended June 30, 2019, total reported units were approximately 187,600, comprised of approximately 174,800 tests reported in our laboratory.

Product Revenues

During the three months ended June 30, 2020, product revenues increased by $15.3 million, or 23.5% compared to the three months ended June 30, 2019, as a result of the continued revenue growth from test volumes.

Licensing and Other Revenues

Licensing and other revenues decreased by $3.2 million, or 34.6%, during the three months ended June 30, 2020 when compared to the three months ended June 30, 2019. The decrease in revenue was primarily due to a decline in revenues recognized from our Strategic Partnership Agreements of approximately $4.3 million. In addition, we recognized $2.1 million revenues from the Evercord offering during the three months ended June 30, 2019 while no revenues were recognized during the three months ended June 30, 2020. The decrease in revenue was offset by a $3.1 million increase in revenues from an oncology product offering.



                                       42

  Table of Contents

Cost of Product Revenues

During the three months ended June 30, 2020, cost of product revenues slightly increased compared to the three months ended June 30, 2019 by approximately $1.4 million, or 3.3% primarily due to labor and higher overhead costs of approximately $3.9 million driven by the increase in accessioned cases of $3.1 million and $0.8 million of COVID-19 related costs (e.g., virus preventative supplies, hazard pay, and salary increases for essential workers). Further, we recorded higher costs related to inventory consumption of $2.3 million also driven by the increase in accessioned cases, which was partially offset by a net decrease of $4.7 million of specimen fees.

Cost of Licensing and Other Revenues

Cost of licensing and other revenues for the three months ended June 30, 2020, when compared to the three months ended June 30, 2019, increased by $1.8 million, or 72.2%. During the three months ended June 30, 2020, the increase in licensing and other costs was primarily due to increases in costs to satisfy performance obligations for our Signatera (RUO) offering concurrently with the increase in Signatera (RUO) revenues and development costs for our Strategic Partnership Agreements of $3.3 million, partially offset by decreases of $1.5 million in cost related to the Evercord offering as we no longer offer this service starting in the third quarter of 2019.

Research and Development

Research and development expenses during the three months ended June 30, 2020 increased by $10.9 million, or 89.7%, when compared to the three months ended June 30, 2019. The increase was primarily driven by salary from headcount growth and consulting related expenditures of $8.4 million, clinical studies related our new product offerings of $1.8 million, and $0.7 million in corporate expenses including overhead, depreciation, and additional research and development workflow costs for the Austin, Texas laboratory facility.

Selling, General and Administrative

Selling, general and administrative expenses increased by $21.1 million, or 45%, in the three months ended June 30, 2020 compared to the three months ended June 30, 2019. The increase in selling, general and administrative expenses was primarily attributable to higher salaries and related expenses of $13.0 million from headcount growth as we expand our product offering, $4.2 million from increased stock-based compensation, $3.5 million of higher corporate and other expense associated with our third-party billing and collection vendors, equipment for remote work and supplies due to the COVID-19 pandemic, $1.5 million from higher outside service costs in connection with domestic and international consultants, audit and legal fees, and $0.6 million from higher tradeshow expenses. These increases were offset by a decrease of $1.7 million of travel related costs due to restrictions from the COVID-19 pandemic.

Loss on Debt Extinguishment

The loss on debt extinguishment of $5.8 million was a result of the repayment of the total outstanding principal and interest under the 2017 Term Loan with Orbimed in the second quarter of 2020. Refer to note 10, Debt, in Item 1, Financial Statements, for further details.

Interest Expense

Interest expense increased by $1.3 million, or 48.4%, in the three months ended June 30, 2020 compared to the same period in the prior year. The increase was primarily due to the issuance of the Convertible Notes in April 2020 with an outstanding principal balance of $287.5 million at a 2.25% interest rate (refer to note 10, Debt, in Item 1, Financial Statements, for details).



                                       43

  Table of Contents

Interest and Other Income

Interest and other income for the three months ended June 30, 2020 increased $1.1 million compared to the same period in the prior year, primarily due to additional interest income from larger cash, cash equivalent and investments balances of $0.4 million, sublease income of $0.5 million, and other income of $0.2 million.

Comparison of the six months ended June 30, 2020 and 2019




                                            Six months ended
                                               June 30,                    Change
                                           2020          2019         Amount      Percent
(in thousands except percentages)
Revenues
Product revenues                        $  167,460    $  128,463    $   38,997       30.4 %
Licensing and other revenues                13,024        12,716           308        2.4
Total revenues                             180,484       141,179        39,305       27.8
Cost and expenses
Cost of product revenues                    84,251        82,987         1,264        1.5

Cost of licensing and other revenues 7,666 4,141 3,525 85.1 Research and development

                    41,230        23,559        17,671       75.0

Selling, general and administrative 133,869 90,874 42,995 47.3 Total cost and expenses

                    267,016       201,561        65,455       32.5
Loss from operations                      (86,532)      (60,382)      (26,150)       43.3
Interest expense                           (6,502)       (5,445)       (1,057)       19.4
Interest and other income, net               3,911         1,289         2,622      203.4
Loss on debt extinguishment                (5,848)             -       (5,848)      100.0
Loss before income taxes                  (94,971)      (64,538)      (30,433)       47.2
Income tax expense                            (38)       (1,969)         1,931     (98.1)
Net loss                                $ (95,009)    $ (66,507)    $ (28,502)       42.9 %




Revenues


Total revenues are comprised of product revenues, which are primarily driven by sales of our Panorama and HCS tests, and licensing and other revenues, which primarily includes development licensing revenue, licensing of our Constellation software to our licensees and revenues from our Signatera (RUO) offering. Total revenues increased by $39.3 million, or 28%, when compared to the six months ended June 30, 2019.

We derive our revenues from tests based on units reported to customers-tests delivered with a result. All reported units are either accessioned in our laboratory or processed outside of our laboratory. As noted in "Overview," the number of tests that we process is a key metric as it tracks overall volume growth. During the six months ended June 30, 2020, total reported units were approximately 441,500, comprised of approximately 417,600 tests reported in our laboratory. Comparatively, during the six months ended June 30, 2019, total reported units were approximately 373,400, comprised of approximately 348,200 tests reported in our laboratory.

Product Revenues

During the six months ended June 30, 2020, product revenues increased by $39.0 million, or 30.4% compared to the six months ended June 30, 2019, as a result of the continued revenue growth from test volumes.

Licensing and Other Revenues

Licensing and other revenues increased by $0.3 million, or 2.4%, during the six months ended June 30, 2020 when compared to the six months ended June 30, 2019. The increase in revenues was due to $5.0 million from our oncology



                                       44

Table of Contents

product offering. This was partially offset by a decrease of $3.6 million from the Evercord offering due to the sale of this business in the third quarter of 2019 and $1.3 million from our Strategic Partnership Agreements.

Cost of Product Revenues

During the six months ended June 30, 2020, cost of product revenues increased slightly by $1.3 million or 1.5% when compared to the six months ended June 30, 2019, primarily due to labor and higher overhead costs of approximately $7.2 million driven by the increase in accessioned cases and our HCS automation workflow of $6.2 million and $1.0 million of COVID-19 related costs (e.g., virus preventative supplies, hazard pay, and salary increases for essential workers). Further, we recorded higher costs related to inventory consumption of $3.6 million also driven by the increase in accessioned cases, which was partially offset by a net decrease of $8.9 million in specimen fees and $0.7 million in cost savings on shipping services.

Cost of Licensing and Other Revenues

Cost of licensing and other revenues for the six months ended June 30, 2020, when compared to the six months ended June 30, 2019, increased by $3.5 million, or 85.1%. During the six months ended June 30, 2020, the increases in licensing and other costs was primarily due higher costs to satisfy performance obligations for our Signatera (RUO) offering concurrently with the increase in Signatera (RUO) revenues and development costs for our Strategic Partnership Agreements of $5.7 million, partially offset by decreases of $2.2 million in cost related to the Evercord offering as we no longer offer this service starting in the third quarter of 2019.

Research and Development

Research and development expenses during the six months ended June 30, 2020 increased by $17.7 million, or 75.0%, when compared to the six months ended June 30, 2019. The increases were primarily driven by salary from headcount growth and consulting related expenditures of $13.8 million, $2.0 million for clinical studies related our new product offerings, $2.2 million of laboratory related expenditures primarily due to the expansion of the Austin, Texas laboratory facility, and $0.3 increase related to computer hardware purchases. This was partially offset by a decrease in corporate and overhead expenses of $0.6 million.

Selling, General and Administrative

Selling, general and administrative expenses increased by $43.0 million, or 47.3%, in the six months ended June 30, 2020 compared to the six months ended June 30, 2019. The increase in selling, general and administrative expenses was primarily attributable to higher salaries and related expenses of $22.0 million resulting from headcount growth as we expand our product offering and increases in payroll related expenses, $6.6 million from increased stock-based compensation, $5.5 million from higher outside service costs in connection with domestic and international consultants, audit and legal fees, $3.0 million from higher fees from our third-party billing and collection vendors, $1.6 million of larger trade show costs to promote new product lines, $1.2 million bad debt expense related to the Evercord receivable impairment recorded during the six months ending June 30, 2020, and $3.1 million higher corporate expenses, which primarily includes equipment for remote work and supplies due to the COVID-19 pandemic, business insurance, bank fees.

Loss on Debt Extinguishment

The loss on debt extinguishment of $5.8 million was a result of the repayment of the outstanding principal and interest under the 2017 Term Loan with Orbimed in the second quarter of 2020. Refer to note 10, Debt, in Item 1, Financial Statements, for details.

Interest Expense

Interest expense increased by $1.1 million, 19.4%, in the six months ended June 30, 2020 compared to the same period in the prior year. The increase was primarily due to the issuance of the Convertible Notes in April 2020 with an



                                       45

Table of Contents

outstanding principal balance of $287.5 million at a 2.25% interest rate (refer to note 10, Debt, in Item 1, Financial Statements, for details).

Interest and Other Income

Interest and other income increased by $2.6 million for the six months ended June 30, 2020, compared to the same period in the prior year, primarily due to additional interest income from larger cash, cash equivalent and investments balances of $1.4 million, sublease income of $1.0 million, and $0.2 million from other income.

Liquidity and Capital Resources

We have incurred net losses each year since our inception. For the six months ended June 30, 2020, we had a net loss of $95.0 million, and we expect to continue to incur losses in future periods as we continue to devote a substantial portion of our resources to our research and development and commercialization efforts for our existing and new products. As of June 30, 2020, we had an accumulated deficit of $794.6 million. We had $77.4 million in cash and cash equivalents and restricted cash, $493.9 million in marketable securities, $50.1 million of outstanding balance of the Credit Line including accrued interest, and $287.5 million outstanding principal balance on the Convertible Notes to the initial purchasers in a private placement and for initial resale to qualified institutional buyers pursuant to the exemption from registration provided by Rule 144A under the Securities Act. We used a portion of the net proceeds from the offering of the Convertible Notes to repay its obligations under its 2017 Term Loan with OrbiMed (see Note 10, Debt, in Item 1, Financial Statements).

While we have introduced multiple products that are generating revenues, these revenues have not been sufficient to fund all operations. Accordingly, we have funded the portion of operating costs that exceeds revenues through a combination of equity issuances and debt and other financings. We expect to develop and commercialize future products and, consequently, we will need to generate additional revenues to achieve future profitability and may need to raise additional equity or incur additional debt. If we raise additional funds by issuing equity securities, our stockholders would experience dilution. Additional debt financing, if available, may involve covenants restricting our operations or our ability to incur additional debt. Any additional debt financing or additional equity that we raise may contain terms that are not favorable to us or our stockholders and requires significant debt service payments, which diverts resources from other activities. Additional financing may not be available at all, or in amounts or on terms acceptable to us. If we are unable to obtain additional financing, we may be required to delay the development and commercialization of our products and significantly scale back our business and operations.

In April 2019, we completed an underwritten equity offering and sold 6,052,631 shares of common stock at a price of $19 per share to the public. Before offering expenses of $0.6 million, we received proceeds of $108.1 million net of the underwriting discount. In October 2019, we completed another underwritten equity offering and sold 6,571,428 shares of its common stock at a price of $35 per share to the public. Before offering expenses of $0.4 million, we received proceeds of $216.2 million net of the underwriting discount.

Based on our current business plan, we believe that our existing cash and marketable securities will be sufficient to meet our anticipated cash requirements for at least 12 months after August 6, 2020.

Credit Line Agreement

In September 2015, we entered into the Credit Line with UBS providing for a $50.0 million revolving line of credit which can be drawn in increments at any time. The Credit Line was amended in July 2017 and bears interest at 30-day LIBOR plus 1.10%, and it is secured by a first priority lien and security interest in our money market and marketable securities held in our managed investment account with UBS. UBS has the right to demand full or partial payment of the Credit Line obligations and terminate it, in its discretion and without cause, at any time.



                                       46

  Table of Contents

2017 Term Loan

In August 2017, we entered into the 2017 Term Loan with OrbiMed, which has a maximum borrowing capacity of $100.0 million. On the closing date of August 8, 2017, we borrowed $75.0 million, with the remaining $25.0 million available to borrow at our option at any time through December 31, 2019. Subsequently, we entered into several amendments and extended the expiration date until December 31, 2019 to draw the unused borrowing capacity of $50.0 million. After the amendments, the interest rate was equal to the sum of (i) 8.25% plus (ii) the higher of 1.00% or LIBOR, provided we draws the minimum capacity of $25.0 million. If the amount drawn is less than $25.0 million, the interest rate would remain at the sum of (i) 8.75% plus (ii) the higher of 1.00% or LIBOR. As a fee in consideration of extending the commitment to provide this option to draw until December 31, 2019, we issued an additional 25,000 shares of our common stock to OrbiMed. We did not exercise such option, and the right to draw the unused borrowing capacity has expired. In April 2020, we used a portion of the net proceeds from the offering of the Convertible Notes to repay our obligations under its 2017 Term Loan with OrbiMed.

Convertible Notes

In April 2020, we issued $287.5 million aggregate principal amount of Convertible Notes in a private placement offering to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended. The Convertible Notes were issued pursuant to an indenture in April 2020 between we and an institution of fiduciary asset as trustee. The Convertible Notes issued in the offering include an option to purchase an additional $37.5 million aggregate principal amount to the initial purchasers, which was exercised in full on the same day of issuance.

The Convertible Notes are senior, unsecured obligations of we and bear interest at a rate of 2.25% per year, payable in cash semi-annually in arrears in May and November of each year, beginning in November 2020. The Convertible Notes mature in May 2027, unless earlier converted, repurchased or redeemed in accordance with their terms. Upon conversion, the Convertible Notes are convertible into cash, shares of our common stock or a combination of cash and shares of our common stock, at our election.

We received net proceeds from the Convertible Notes of $278.3 million, after deducting the initial purchasers' discounts and debt issuance costs. We used approximately $79.2 million of the net proceeds from the Convertible Notes offering to repay our obligations under the 2017 Term Loan with OrbiMed.

Cash Flows



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


                                                              Six Months Ended
                                                                 June 30,
                                                            2020            2019
(in thousands)
Cash used in operating activities                       $    (76,080)    $  (35,751)
Cash used in investing activities                           (121,954)      (100,995)
Cash provided by financing activities                         213,430        115,725
Net (decrease) increase in cash, cash equivalents
and restricted cash                                            15,396       (21,021)
Cash, cash equivalents and restricted cash,
beginning of period                                            61,981         51,004

Cash, cash equivalents and restricted cash, end of period

$      77,377    $    29,983

Cash Used in Operating Activities

Cash used in operating activities during the six months ended June 30, 2020 was $76.1 million. The net loss of $95.0 million includes $38.3 million in non-cash charges resulting from $4.0 million of depreciation and amortization, $3.9 million non-cash lease expense, $19.4 million of stock-based compensation expense, $2.2 million of amortization of debt discount, $1.9 million premium amortization and discount accretion on investment securities, $1.4 million provision



                                       47

  Table of Contents

for credit losses and a $5.8 million loss on debt extinguishment. These non-cash charges were offset by $0.3 million in other non-cash benefits. Operating assets had cash outflows of $16.9 million resulting from $6.0 million increases in accounts receivable, $5.4 million increases in inventory, and $5.6 million increases in prepaids and other current assets net of allowances for credit loss associated with receivables from third-party buyer, offset by $0.1 million decreases in other assets. Operating liabilities had cash outflows of $2.5 million resulting from a $4.9 million decrease in deferred revenue and $4.7 million decrease in accounts payable, offset by $6.6 million increase in other accrued liabilities and $0.5 million increase in accrued compensation.

Cash used in operating activities during the six months ended June 30, 2019 was $35.8 million. The net loss of $66.5 million includes $18.4 million in non-cash charges resulting from $4.0 million of depreciation and amortization, $3.8 million of non-cash lease expense, $9.9 million of stock-based compensation expense; amortization of debt discount, premium amortization and discount accretion on investment securities totaling $0.4 million, $0.2 million of inventory excess adjustments, and $0.1 million in other non-cash charges. Operating assets had $16.6 million cash outflow resulting from $0.8 million increases in accounts receivable, $1.8 million increases in inventory, $4.5 million increases in prepaid and other current assets, $9.5 million increases in other assets. Operating liabilities generated cash inflows of $28.9 million due to an increase of deferred revenues of $35.5 million primarily driven by prepaid license, royalties and one milestone payment from BGI, and an increase in other accrued liabilities by $2.3 million, offset by a decrease in accounts payable of $6.4 million and a decrease in accrued compensation of $2.5 million.

Cash Used in Investing Activities

Cash used in investing activities for the six months ended June 30, 2020 totaled $122.0 million, which was comprised of purchasing new investments of $266.1 million and $10.1 million in acquisitions of property, plant and equipment, offset by $142.8 million from proceeds of investments maturities and $11.5 million proceeds from sale of investments.

Cash used in investing activities for the six months ended June 30, 2019 totaled $101.0 million, which was comprised of purchasing new investments of $162.2 million, acquisitions of property, plant and equipment of $1.6 million, offset by $62.8 million in proceeds resulting from maturities of investments.

Cash Provided by Financing Activities

Cash provided by financing activities for the six months ended June 30, 2020 totaled $213.4 million comprised of net proceeds from the issuance of the Convertible Notes for $278.3 million and $13.9 million cash proceeds from the exercise of stock options and issuance of common stock under the employee stock purchase plan. This was offset by a $79.2 million repayment of the 2017 Term Loan with OrbiMed.

Cash provided by financing activities for the six months ended June 30, 2019 totaled $115.7 million. The cash proceeds were primarily comprised $107.6 million net of underwriting discount and issuance costs from the equity offering completed in the second quarter of 2019. The remainder were comprised of proceeds from exercise of stock options and shares purchased from the employee stock purchase plan.

Contractual Obligations and Other Commitments

See Note 8 - Commitments and Contingencies for details.

Off-Balance Sheet Arrangements

Other than our obligation to settle the conversion option under the Convertible Notes described in Note 10, Debt, in Item 1, Financial Statements, we do not have any off-balance sheet arrangements as defined in Item 303(a)(4)(ii) of Regulation S-K.



                                       48

Table of Contents

© Edgar Online, source Glimpses