Biggest changeYear Ended December 31, 2022 2021 2020 2019 2018 Consolidated Statements of Operations: (in thousands, except share and per share data) Revenue $ 65,047 $ 85,494 $ 78,648 $ 65,207 $ 37,774 Costs and expenses Cost of revenue 51,697 53,837 58,534 43,127 25,969 Research and development 64,912 49,312 28,568 22,418 14,304 Selling, general and administrative 63,969 47,698 33,692 22,080 11,271 Total costs and expenses 180,578 150,847 120,794 87,625 51,544 Loss from operations (115,531 ) (65,353 ) (42,146 ) (22,418 ) (13,770 ) Interest income 2,396 367 949 1,620 293 Interest expense (201 ) (184 ) (2 ) (1,133 ) (1,894 ) Loss on debt extinguishment — — — (1,704 ) (4,658 ) Other income (expense), net 61 (42 ) (24 ) (1,440 ) 150 Loss before income taxes (113,275 ) (65,212 ) (41,223 ) (25,075 ) (19,879 ) Provision for income taxes 40 14 57 9 7 Net loss $ (113,315 ) $ (65,226 ) $ (41,280 ) $ (25,084 ) $ (19,886 ) Net loss per share, basic and diluted $ (2.48 ) $ (1.49 ) $ (1.20 ) $ (1.39 ) $ (6.49 ) Weighted-average shares outstanding, basic and diluted 45,704,805 43,886,730 34,374,903 18,011,470 3,063,157 December 31, 2022 2021 2020 2019 2018 Consolidated Balance Sheet Data: (in thousands) Cash and cash equivalents, and short-term investments $ 167,658 $ 287,064 $ 203,290 $ 128,289 $ 19,744 Working capital 166,568 286,918 180,083 89,616 (28,291 ) Total assets 292,700 396,528 244,842 157,291 41,670 Total debt 2,596 3,494 — — 4,996 Long-term obligations 41,430 54,914 9,261 639 804 Total liabilities 74,561 86,227 49,897 50,601 58,654 Redeemable convertible preferred stock — — — — 89,404 Total stockholders' equity (deficit) 218,139 310,301 194,945 106,690 (106,388 ) Results of Operations This section generally discusses 2022 and 2021 items and year-to-year comparisons between 2022 and 2021.
Biggest changeYear Ended December 31, 2023 2022 2021 2020 2019 Consolidated Statements of Operations: (in thousands, except share and per share data) Revenue $ 73,481 $ 65,047 $ 85,494 $ 78,648 $ 65,207 Costs and expenses Cost of revenue 55,273 51,697 53,837 58,534 43,127 Research and development 64,776 64,912 49,312 28,568 22,418 Selling, general and administrative 49,726 63,969 47,698 33,692 22,080 Lease impairment 5,565 — — — — Restructuring and other charges 8,077 — — — — Total costs and expenses 183,417 180,578 150,847 120,794 87,625 Loss from operations (109,936 ) (115,531 ) (65,353 ) (42,146 ) (22,418 ) Interest income 5,901 2,396 367 949 1,620 Interest expense (110 ) (201 ) (184 ) (2 ) (1,133 ) Loss on debt extinguishment — — — — (1,704 ) Other income (expense), net (4,068 ) 61 (42 ) (24 ) (1,440 ) Loss before income taxes (108,213 ) (113,275 ) (65,212 ) (41,223 ) (25,075 ) Provision for income taxes 83 40 14 57 9 Net loss $ (108,296 ) $ (113,315 ) $ (65,226 ) $ (41,280 ) $ (25,084 ) Net loss per share, basic and diluted $ (2.25 ) $ (2.48 ) $ (1.49 ) $ (1.20 ) $ (1.39 ) Weighted-average shares outstanding, basic and diluted 48,175,201 45,704,805 43,886,730 34,374,903 18,011,470 December 31, 2023 2022 2021 2020 2019 (in thousands) Cash and cash equivalents, and short-term investments $ 114,179 $ 167,658 $ 287,064 $ 203,290 $ 128,289 Working capital 99,510 166,568 286,918 180,083 89,616 Total assets 225,099 292,700 396,528 244,842 157,291 Total debt 2,880 2,596 3,494 — — Long-term obligations 48,424 41,430 54,914 9,261 639 Total liabilities 95,658 74,561 86,227 49,897 50,601 Total stockholders' equity 129,441 218,139 310,301 194,945 106,690 Results of Operations This section generally discusses 2023 and 2022 items and year-to-year comparisons between 2023 and 2022.
If the key opinion leaders ("KOLs") we are collaborating with have a positive experience using our platform, we are optimistic this will support broader use of our platform by other KOLS, as well as clinicians in the future. Our work in oncology is underpinned by our experience and capacity for next-generation sequencing at scale.
If the key opinion leaders ("KOLs") we are collaborating with have a positive experience using our products, we are optimistic this will support broader use of our products by other KOLs, as well as clinicians in the future. Our work in oncology is underpinned by our experience and capacity for next-generation sequencing at scale.
Accessing these new customers through scientific engagement and marketing to gain initial buy-in is critical to our success and gives us the opportunity to demonstrate the utility of our platform. • Our revenue and cost are affected by the volume of samples we receive from customers from period to period.
Accessing these new customers through scientific engagement and marketing to gain initial buy-in is critical to our success and gives us the opportunity to demonstrate the utility of our products. • Our revenue and cost are affected by the volume of samples we receive from customers from period to period.
We currently have no history or expectation of paying cash dividends on our common stock. • Risk-Free Interest Rate —The risk-free interest rate is based on the yield available on U.S. Treasury zero-coupon issues similar in duration to the expected term of the award.
We currently have no history or expectation of paying cash dividends on our common stock. • Risk-Free Interest Rate —The risk-free interest rate is based on the yield available on U.S. Treasury zero-coupon issues similar in duration to the expected term of the warrants.
Because our technology is novel, some customers begin using our platform by initiating pilot studies involving a small number of samples to gain experience with our service. As a result, historically a significant portion of our revenue has come from existing customers.
Because our technology is novel, some customers begin using our products by initiating pilot studies involving a small number of samples to gain experience with our service. As a result, historically a significant portion of our revenue has come from existing customers.
In September 2022, the lease commencement date for our new facility in Fremont, California was delayed from the original intended date due to delays in the completion of the work necessary for the Company to move into the facility, which resulted in a reassessment of the lease term and consequently a remeasurement of the lease liability and corresponding adjustment to the carrying amount of the right-of-use asset based on the updated incremental borrowing rate.
In September 2022, the lease commencement date for our new facility in Fremont, California was delayed from the original intended date due to delays in the completion of the work necessary for us to move into the facility, which resulted in a reassessment of the lease term and consequently a remeasurement of the lease liability and corresponding adjustment to the carrying amount of the right-of-use asset based on an updated incremental borrowing rate.
The terms of debt securities issued or borrowings pursuant to a credit agreement could impose significant restrictions on our operations. Additional capital may not be available on reasonable terms, or at all. 68 Table of Contents Our short-term investments portfolio is primarily invested in highly rated securities, with the primary objective of minimizing the potential risk of principal loss.
The terms of debt securities issued or borrowings pursuant to a credit agreement could impose significant restrictions on our operations. Additional capital may not be available on reasonable terms, or at all. Our short-term investments portfolio is primarily invested in highly rated securities, with the primary objective of minimizing the potential risk of principal loss.
Most of our revenue to date has been derived from sales in the United States. 64 Table of Contents Costs and Expenses Cost of Revenue Cost of revenue consists of raw materials costs, personnel costs (salaries, bonuses, stock-based compensation, payroll taxes, and benefits), laboratory supplies and consumables, depreciation and maintenance on equipment, and allocated facilities and information technology (“IT”) costs.
Most of our revenue to date has been derived from sales in the United States. Costs and Expenses Cost of Revenue Cost of revenue consists of raw materials costs, personnel costs (salaries, bonuses, stock-based compensation, payroll taxes, and benefits), laboratory supplies and consumables, depreciation and maintenance on equipment, and allocated facilities and information technology (“IT”) costs.
Revenue from our partnership with Natera to provide advanced tumor analysis for use in Natera's MRD testing offerings currently makes up substantially all of the revenue in this category. • Population sequencing includes sales of genomic sequencing services and data analytics to support large-scale genetic research programs.
Revenue from our partnership with Natera to provide advanced tumor analysis for use in Natera's MRD test currently makes up substantially all of the revenue in this category. • Population sequencing includes sales of genomic sequencing services and data analytics to support large-scale genetic research programs.
As a result, these discounts do not constitute a material right and do not meet the definition of a separate performance obligation, except in limited instances. We do not offer retrospective discounts or rebates. Accordingly, all of the transaction price, net of any discounts, is allocated to one performance obligation.
As a result, these discounts do not constitute a material right and do not meet the definition of a separate performance obligation, except in limited instances. We do not offer retrospective discounts or rebates. 63 Table of Contents Accordingly, all of the transaction price, net of any discounts, is allocated to one performance obligation.
Our publications, posters and presentations at scientific conferences lead to engagement at the scientific level with potential customers who often make the initial decision to gain experience with our platform.
Our publications, posters and presentations at scientific conferences lead to engagement at the scientific level with potential customers who often make the initial decision to gain experience with our products.
Our performance depends on the willingness of pharmaceutical companies, enterprise customers, and oncologists to continue to seek more comprehensive molecular information to develop more efficacious cancer therapies. 63 Table of Contents • Increasing adoption of our products and solutions by existing customers. Our performance depends on our ability to retain and broaden adoption with existing customers.
Our performance depends on the willingness of pharmaceutical companies, enterprise customers, and oncologists to continue to seek more comprehensive molecular information to develop more efficacious cancer therapies. • Increasing adoption of our products and solutions by existing customers. Our performance depends on our ability to retain and broaden adoption with existing customers.
However, we generally do not have binding and enforceable purchase orders beyond the short term, and the timing and magnitude of purchase orders beyond such period is difficult to accurately project. We currently expect spend in this area to increase in 2023 to support expected higher levels of revenue. Operating expenditures .
However, we generally do not have binding and enforceable purchase orders beyond the short term, and the timing and magnitude of purchase orders beyond such period is difficult to accurately project. We currently expect spending in this area to increase in 2024 relative to 2023 to support expected higher levels of revenue. Operating expenditures .
We have the capacity to sequence and analyze approximately 200 trillion bases of DNA per week in our facility. We believe that our capacity is already larger than most cancer genomics companies, and we continue to build automation and other infrastructure to scale further as demand increases.
We have the capacity to sequence and analyze over 300 trillion bases of DNA per week in our facility. We believe that our capacity is already larger than most cancer genomics companies, and we continue to build automation and other infrastructure to scale further as demand increases.
We believe that the assumptions and estimates associated with revenue recognition, stock-based compensation, and leases have the greatest potential impact on our consolidated financial statements. Therefore, we consider these to be our critical accounting policies and estimates. Revenue Recognition We generate our revenue from selling sequencing and data analysis services.
We believe that the assumptions and estimates associated with revenue recognition, leases, and common stock warrants have the greatest potential impact on our consolidated financial statements. Therefore, we consider these to be our critical accounting policies and estimates. Revenue Recognition We generate our revenue from selling sequencing and data analysis services.
Discussions of 2020 items and year-to-year comparisons between 2021 and 2020 that are not included in this Annual Report on Form 10-K can be found in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended December 31, 2021, which is incorporated by reference herein.
Discussions of 2021 items and year-to-year comparisons between 2022 and 2021 that are not included in this Annual Report on Form 10-K can be found in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended December 31, 2022 , filed with the SEC on February 23, 2023, which is incorporated by reference herein.
Components of Operating Results Revenue We derive our revenue primarily from sales of advanced sequencing and analytics to the following four groups of customers: • Pharma tests and services includes sales of testing services and data analytics for clinical trials and research to pharmaceutical companies in support of their drug development programs. • Enterprise sales includes sales of tumor profiling and diagnostic tests directly to other businesses as an input to their products.
Components of Operating Results Revenue We derive our revenue from sales of advanced sequencing and analytics to the following four customer types: • Pharma tests and services includes sales of testing services and data analytics for clinical trials and research to pharmaceutical companies in support of their drug development programs. • Enterprise sales includes sales of tumor profiling and diagnostic tests directly to another business as an input to their products.
As part of one of our new strategies for 2023 and beyond, we are working with a growing number of leading cancer centers and world-class academic research institutions to build and publish the clinical evidence-base to support our products and our key indications.
As part of one of our new strategies for 2023 and beyond, we are working with a growing number of leading cancer centers and world-class academic research institutions to build and publish the clinical evidence-base to support our products and our key indications, as well as to obtain reimbursement coverage from Medicare and other payors.
Revenue from our partnership with the VA MVP to provide population sequencing accounts for all of the revenue in this category. • Other includes sales of genomic tests and analytics to universities and non-profits. This category also includes sales of diagnostics tests ordered by healthcare providers for cancer patients, which was insignificant in 2022.
All of the revenue in this category is from our partnership with the VA MVP. • Other includes sales of genomic tests and analytics to universities and non-profits. This category also includes sales of diagnostics tests ordered by healthcare providers for cancer patients, which was insignificant for periods presented.
We plan to fund our material cash requirements with our existing cash and cash equivalents and short-term investments, which amounted to $167.7 million as of December 31, 2022, as well as anticipated cash receipts from customers.
We plan to fund our material cash requirements with our existing cash and cash equivalents and short-term investments, which amounted to $114.2 million as of December 31, 2023, as well as anticipated cash receipts from customers.
Our estimates are based on our historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources.
Our estimates are based on our historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.
Other Income (Expense), Net Other income (expense), net consists primarily of foreign currency exchange gains and losses, and realized gains or losses associated with sales of marketable securities. 65 Table of Contents Trend Financial Information The following selected consolidated financial data should be read in conjunction with the consolidated financial statements and the notes thereto in Item 8 of Part II, “Financial Statements and Supplementary Data”.
Otherwise, other income (expense), net consists primarily of foreign currency exchange gains and losses. 58 Table of Contents Trend Financial Information The following selected consolidated financial data should be read in conjunction with the consolidated financial statements and the notes thereto in Item 8 of Part II, “Financial Statements and Supplementary Data”.
Our primary use of cash relates to paying employees, spend on professional services, spend related to research and development projects, and other costs related to our research and development, selling, general and administrative functions. We currently expect to decrease our spend in these areas as a result of our first quarter 2023 workforce reduction.
Our primary use of cash relates to employee compensation, spend on professional services, spend related to research and development projects, and other costs related to our research and development, selling, general and administrative functions. We currently expect to decrease our spend in these areas as a result of our workforce reductions initiated in 2023.
Our ability to increase revenue will depend on our ability to further increase sales to these groups of customers and expand our customer base within each group.
Our ability to increase revenue will depend on our ability to further increase sales to these groups of customers, expand our customer base within each group, and expand our business in the clinical diagnostics market.
These expenses consist of personnel costs (salaries, bonuses, stock-based compensation, payroll taxes, and benefits), corporate insurance, audit and legal expenses, consulting costs, and allocated facilities and IT costs. We expense all selling, general and administrative costs as incurred.
Our general and administrative expenses include costs for our executive, accounting, finance, legal, and human resources functions. These expenses consist of personnel costs (salaries, bonuses, stock-based compensation, payroll taxes, and benefits), corporate insurance, audit and legal expenses, consulting costs, and allocated facilities and IT costs. We expense all selling, general and administrative costs as incurred.
Investment in research and development, including the development of new products and capabilities is critical to establish and maintain our leading position. We have invested significantly in our NeXT Platform, introducing new products and additional capabilities.
Investment in research and development, including the development of new products and capabilities is critical to establish and maintain our leading position. We have invested significantly in our NeXT platform, introducing new products and additional capabilities. We are also collaborating with KOLs to support the clinical utility of our products.
Actual results may differ from these estimates under different assumptions or conditions. 69 Table of Contents An accounting policy is deemed to be critical if it requires an accounting estimate to be made based on assumptions about matters that are highly uncertain at the time the estimate is made, if different estimates reasonably could have been used, or if changes in the estimate that are reasonably possible could materially impact the financial statements.
An accounting policy is deemed to be critical if it requires an accounting estimate to be made based on assumptions about matters that are highly uncertain at the time the estimate is made, if different estimates reasonably could have been used, or if changes in the estimate that are reasonably possible could materially impact the financial statements.
We expect cost of revenue to increase as our revenue grows. We expect variability in our gross margins over the medium term due to fluctuating population sequencing revenue, investments in new capabilities such as automation of laboratory workflows, processing of diagnostic tests for the clinical market while we work to secure reimbursement, and costs related to our new Fremont facility.
We expect variability in our gross margins over the medium-term due to fluctuations in customer mix and volume, investments in newer sequencing platforms and new capabilities such as automation of laboratory workflows, processing of diagnostic tests for the clinical market while we work to secure reimbursement, and costs related to our new Fremont facility.
Our investment policy generally requires securities to be investment grade and limits the amount of credit exposure to any one issuer. As of December 31, 2022, cash and cash equivalents held by foreign subsidiaries was $0.7 million.
Our investment policy generally requires securities to be investment grade and limits the amount of credit exposure to any one issuer. As of December 31, 2023, cash and cash equivalents held by foreign subsidiaries was $1.2 million, most of which was held by our China subsidiary.
Revenue The following table shows revenue by customer type (in thousands): Years Ended December 31, Change 2022 2021 2020 2022 vs 2021 2021 vs 2020 Pharma tests and services $ 29,552 $ 30,282 $ 21,396 (2%) 42% Enterprise sales 26,641 8,774 479 204% 1,732% Population sequencing 8,443 45,671 56,154 (82%) (19%) Other 411 767 619 (46%) 24% Total revenue $ 65,047 $ 85,494 $ 78,648 (24%) 9% The following table shows customers that made up at least 10% of total revenue in each year presented: Year Ended December 31, 2022 2021 2020 Natera, Inc. 41% 10% * VA MVP 13% 53% 71% Merck & Co., Inc. 11% * * * Less than 10% of revenue 66 Table of Contents Pharma tests and services Revenue from pharma tests and services decreased 2%, or $0.7 million, in 2022.
Revenue The following table shows revenue by customer type (in thousands): Years Ended December 31, Change 2023 2022 2021 2023 vs 2022 2022 vs 2021 Pharma tests and services $ 31,904 $ 29,552 $ 30,282 8% (2%) Enterprise sales 31,729 26,641 8,774 19% 204% Population sequencing 9,412 8,443 45,671 11% (82%) Other 436 411 767 6% (46%) Total revenue $ 73,481 $ 65,047 $ 85,494 13% (24%) 59 Table of Contents The following table shows customers that made up at least 10% of total revenue in each year presented: Year Ended December 31, 2023 2022 2021 Natera, Inc. 43% 41% 10% VA MVP 13% 13% 53% Merck & Co., Inc. * 11% * * Less than 10% of revenue Pharma tests and services Revenue from pharma tests and services increased 8%, or $2.4 million, in 2023.
Incremental Borrowing Rate Lease liabilities are recognized at the present value of the fixed lease payments, reduced by landlord incentives, using a discount rate based on the Company’s current borrowing rate at the lease commencement date (the incremental borrowing rate), unless the rate implicit in the lease is readily determinable.
Therefore, upon delivery of the services, there are no remaining performance obligations. Leases Lease liabilities are recognized at the present value of the fixed lease payments, reduced by landlord incentives, using a discount rate based on our current borrowing rate at the lease commencement date (the incremental borrowing rate), unless the rate implicit in the lease is readily determinable.
Interest Income, Interest Expense and Other Expense, Net Year Ended December 31, Change 2022 2021 2020 2022 vs 2021 2021 vs 2020 (in thousands) Interest income $ 2,396 $ 367 $ 949 553% (61%) Interest expense (201 ) (184 ) (2 ) 9% NM Other income (expense), net 61 (42 ) (24 ) NM 75% Total $ 2,256 $ 141 $ 923 Interest income and interest expense The increase in interest income in 2022 was due to increased yields on our investments.
Interest Income, Interest Expense and Other Income (Expense), Net Year Ended December 31, Change 2023 2022 2021 2023 vs 2022 2022 vs 2021 (in thousands) Interest income $ 5,901 $ 2,396 $ 367 146% 553% Interest expense (110 ) (201 ) (184 ) (45%) 9% Other income (expense), net (4,068 ) 61 (42 ) NM NM Total $ 1,723 $ 2,256 $ 141 Interest income and interest expense The increase in interest income was due to increased yields on our investments.
Factors Affecting Our Performance We believe there are several important factors that have impacted, and that we expect will continue to impact, our operating performance and results of operations, including: • The continued development of the market for genomic-based tests.
Continued efforts to reduce expenses across the board. 56 Table of Contents Factors Affecting Our Performance We believe there are several important factors that we expect to impact our operating performance and results of operations, including: • The continued development of the market for genomic-based tests.
Our advanced genomic sequencing and analytics also support the development of personalized cancer vaccines and other next-generation cancer immunotherapies. For example, we are providing genomic testing to Moderna in its ongoing clinical trials evaluating a personalized cancer vaccine. In addition, we partner with diagnostics companies by providing our advanced tumor profiling and analysis capabilities as an input to their products.
Our advanced genomic sequencing and analytics also support the development of personalized cancer vaccines and other next-generation cancer immunotherapies. For example, we are providing genomic testing to Moderna, Inc. ("Moderna") in its ongoing clinical trials evaluating a personalized cancer vaccine.
Going forward, our capital expenditures are expected to consist primarily of laboratory equipment and computer equipment. We currently expect capital expenditures to be between $4 million to $6 million in each of the years 2023, 2024, and 2025. Property leases . Our noncancelable operating lease payments were $83.8 million as of December 31, 2022.
We currently expect capital expenditures to be approximately $1 million in 2024 and between $4 million to $6 million in each of the years 2025 and 2026. Property leases . Our noncancelable operating lease payments were $78.6 million as of December 31, 2023.
As of December 31, 2022, we had cash and cash equivalents in the amount of $89.1 million and short-term investments in the amount of $78.5 million. We have incurred net losses since our inception.
As of December 31, 2023, we had cash and cash equivalents of $57.0 million and short-term investments of $57.2 million. We have incurred net losses since our inception.
More recently, we launched new diagnostic offerings for the clinical setting and are preparing for future expansion in the clinical diagnostics market. Finally, we have also pursued non-cancer related business opportunities, specifically within the population sequencing market, by providing whole genome sequencing ("WGS") services under contract with the U.S. Department of Veterans Affairs Million Veteran Program ("VA MVP").
(formerly known as Tempus Labs, Inc., and referred to herein as "Tempus") to commercialize NeXT Personal Dx in the clinical diagnostics market. Finally, we have also pursued non-cancer related business opportunities, specifically within the population sequencing market, by providing whole genome sequencing ("WGS") services under contract with the U.S. Department of Veterans Affairs Million Veteran Program ("VA MVP").
To do this, we are developing a growing set of state-of-the-art services and products, advancing our operational infrastructure, building our regulatory credentials, focusing our marketing efforts on large pharmaceutical companies, and seeking additional partnerships such as ours with Natera. We sell through a small direct sales force.
To do this, we are developing a growing set of state-of-the-art services and products; advancing our operational infrastructure; building our regulatory credentials; focusing our marketing efforts on large pharmaceutical companies; building and publishing the clinical evidence-base to support our products and our key indications, as well as to obtain reimbursement coverage from Medicare and other payors; and seeking additional partnerships such 57 Table of Contents as ours with Natera.
Liquidity and Capital Resources The following tables present selected financial information and cash flow information (in thousands): December 31, 2022 2021 2020 Cash and cash equivalents, and short-term investments $ 167,658 $ 287,064 $ 203,290 Property and equipment, net 61,935 19,650 11,834 Contract liabilities 1,264 3,982 21,034 Working capital 166,568 286,918 180,083 Year Ended December 31, 2022 2021 2020 Net cash used in operating activities $ (70,233 ) $ (70,828 ) $ (42,653 ) Net cash used in investing activities 52,537 (60,069 ) (65,143 ) Net cash provided by financing activities 1,366 169,700 121,268 From our inception through December 31, 2022, we have funded our operations primarily from $279.0 million in net proceeds from our follow-on equity offerings in August 2020 and January 2021, $144.0 million in net proceeds from our IPO in June 2019, and $89.6 million from issuance of redeemable convertible preferred stock, as well as cash from operations and debt financings.
Liquidity and Capital Resources The following table presents selected financial information (in thousands): December 31, 2023 2022 2021 Cash and cash equivalents, and short-term investments $ 114,179 $ 167,658 $ 287,064 Property and equipment, net 57,366 61,935 19,650 Contract liabilities 7,216 1,264 3,982 Working capital 99,510 166,568 286,918 From our inception through December 31, 2023, we have funded our operations primarily from $279.0 million in net proceeds from our follow-on equity offerings in August 2020 and January 2021, $144.0 million in net proceeds from our IPO in June 2019, $89.6 million from issuance of redeemable convertible preferred stock, $3.5 million in net proceeds from our ATM facility (see Note 2, Summary of Significant Accounting Policies), as well as cash from operations and debt financings.
Further discussion of these transactions can be found in Part I, Item 1 of this Annual Report on Form 10-K in the Notes to Consolidated Financial Statements in Note 6, Loans. Critical Accounting Policies and Estimates Our consolidated financial statements are prepared in accordance with U.S. GAAP.
We will make a payment of $0.4 million in September 2024 to pay off this loan. Further discussion of this loan can be found in Part II, Item 8 of this Form 10-K in the Notes to Consolidated Financial Statements in Note 6, “Loans.” Critical Accounting Policies and Estimates Our consolidated financial statements are prepared in accordance with U.S. GAAP.
The increase in our estimated borrowing rate between August 2021 and September 2022 mostly reflects the higher interest rate environment in 2022 as compared to 2021. Recent Accounting Pronouncements See the sections titled “Summary of Significant Accounting Policies—Recent Accounting Pronouncements” and “—Recent Accounting Pronouncements Not Yet Adopted” in Note 2 to our consolidated financial statements for additional information.
Recent Accounting Pronouncements See the sections titled “Summary of Significant Accounting Policies—Recent Accounting Pronouncements” in Note 2 to our consolidated financial statements for additional information.
The timing of these future payments, by year, can be found in Part II, Item 8 of this Annual Report on Form 10-K in the Notes to Consolidated Financial Statements in Note 7, Leases. Other .
The timing of these future payments, by year, can be found in Part II, Item 8 of this Form 10-K in the Notes to Consolidated Financial Statements in Note 7, “Leases.” Other . As of December 31, 2023, we have an outstanding noninterest bearing loan that was used to finance the purchase of equipment for our laboratory.
We have invested significantly in our sample processing capabilities and commercial infrastructure. With our current operating model and infrastructure, we can increase our production and commercialize new generations of our platform. We expect to grow our revenue and spread our costs over a larger volume of services.
We believe this work is critical to gaining customer adoption and expect our investments in these efforts to continue. • Leverage our operational infrastructure. We have invested significantly in our sample processing capabilities and commercial infrastructure. With our current operating model and infrastructure, we can increase our production and commercialize new generations of our products.
Selling, General and Administrative Expenses Selling expenses consist of personnel costs (salaries, commissions, bonuses, stock-based compensation, payroll taxes, and benefits), customer support expenses, direct marketing expenses, and market research. Our general and administrative expenses include costs for our executive, accounting, finance, legal, and human resources functions.
We expect research and development expenses to decrease as a result of our reductions in workforce initiated in 2023 and our closure of operations in China. Selling, General and Administrative Expenses Selling expenses consist of personnel costs (salaries, commissions, bonuses, stock-based compensation, payroll taxes, and benefits), customer support expenses, direct marketing expenses, and market research.
On a long-term basis, we manage future cash requirements relative to our long-term business plans. Capital expenditures . Capital expenditures are expected to decrease significantly after 2022 as we have substantially completed the one-time build-out of our new headquarters and laboratory facility in Fremont, California as of the end of 2022.
On a long-term basis, we manage future cash requirements relative to our long-term business plans. Capital expenditures . Capital expenditures are expected to decrease from 2023 levels as we have completed significant laboratory capacity additions. Going forward, our capital expenditures are expected to consist primarily of laboratory equipment and computer equipment.
We filed a prospectus supplement in January 2022 pursuant to which we could offer and sell additional shares of our common stock up to an aggregate amount of $100.0 million through an at-the-market offering program.
We filed a sales agreement prospectus in December 2023 pursuant to which we may offer and sell up to $50.0 million of shares of our common stock through our ATM facility.
Our products are designed to detect recurrence at the earliest timepoints, enable selection of targeted therapies based on ultra-comprehensive genomic profiling, and enhance biomarker strategy for drug development. Today, our platforms are routinely used by many of the largest oncology-focused pharmaceutical companies for analysis of patient samples in their clinical trials and drug development programs.
Our advanced tests are used by physicians to detect cancer recurrence, monitor cancer evolution, and uncover insights for therapy selection. We also provide sequencing and data analysis services to support population sequencing initiatives. Today, our products are routinely used by many of the largest oncology-focused pharmaceutical companies for analysis of patient samples in their clinical trials and drug development programs.
The number of samples processed increased over 300% in 2022 as compared to 2021. Population sequencing Population sequencing revenue is made up entirely of sales to the VA MVP.
Population sequencing Population sequencing revenue is made up entirely of sales to the VA MVP. The increase in revenue was driven by an increase in samples we tested, which offset a nearly 50% reduction in selling prices in 2023 as compared to 2022.
During 2022, cash provided by investing activities was $52.5 million due to $102.4 million of net proceeds from short-term investments partially offset by $49.9 million in property and equipment purchases.
The $39.4 million decrease in cash provided by investing activities during 2023 as compared to 2022 was due to significantly lower net proceeds from short-term investment maturities, partially offset by a $39.0 million reduction in capital expenditures.
Costs and Expenses Year Ended December 31, Change 2022 2021 2020 2022 vs 2021 2021 vs 2020 (in thousands) Cost of revenue $ 51,697 $ 53,837 $ 58,534 (4%) (8%) Research and development 64,912 49,312 28,568 32% 73% Selling, general and administrative 63,969 47,698 33,692 34% 42% Total costs and expenses $ 180,578 $ 150,847 $ 120,794 20% 25% Cost of revenue The decrease in cost of revenue of 4%, or $2.1 million, in 2022 was primarily due to lower revenue levels but also improved contribution margins due to customer mix (non-population sequencing sales generally have higher contribution margins), partially offset by higher fixed laboratory costs and indirect supplies costs (enterprise and pharma customer orders require more supplies to process as compared to population sequencing orders).
Costs and Expenses Year Ended December 31, Change 2023 2022 2021 2023 vs 2022 2022 vs 2021 (in thousands) Cost of revenue $ 55,273 $ 51,697 $ 53,837 7% (4%) Research and development 64,776 64,912 49,312 (0%) 32% Selling, general and administrative 49,726 63,969 47,698 (22%) 34% Lease impairment 5,565 — — NM NM Restructuring and other charges 8,077 — — NM NM Total costs and expenses $ 183,417 $ 180,578 $ 150,847 2% 20% Cost of revenue The increase in cost of revenue of 7%, or $3.6 million, was primarily due to higher revenue levels (revenue increased 13% over the same period), partially offset by dedication of more laboratory resources to support sample processing required for clinical evidence generation, which is a non-revenue generating activity and thus reported as R&D expense.
Interest expense in 2022 and 2021 is the recognition of imputed interest on noninterest bearing loans. Other income (expense), net Other income (expense), net consisted mainly of foreign currency remeasurements.
Interest expense is the recognition of imputed interest on noninterest bearing loans. Other Income (Expense), Net Other income (expense), net consists primarily of charges related to the issuance and remeasurement of warrants to Tempus during the year ended December 31, 2023.
We also anticipate increasing our revenue in the future through entrance into the clinical diagnostics market and have begun building our regulatory, clinical, and reimbursement capabilities, including hiring a national clinical sales force. We have one reportable segment from the sale of sequencing and data analysis services.
We sell through a small direct sales force. In late 2023, we entered into an agreement with Tempus to commercialize NeXT Personal Dx in the clinical diagnostics market and will be leveraging Tempus' significantly larger sales force. We have one reportable segment from the sale of sequencing and data analysis services.
As of December, 2022, we had three noninterest bearing loans to finance the purchase of $6.9 million of computer hardware, internal use software licenses, and related ongoing support. In connection with the loans, we made payments of $2.3 million in 2022. Remaining payments of $2.3 million and $0.4 million due in 2023 and 2024, respectively.
We owe a total of $2.5 million, with half of that amount owed in 2024 and the other half in 2025. Additionally, we had an outstanding noninterest bearing loan that was used to finance the purchase of internal use software licenses and related ongoing support.
We expect our selling, general and administrative expenses to decrease significantly in the medium term as a result of the 2023 reduction in workforce, partially offset by investments in our diagnostic sales outreach efforts. Interest Income and Interest Expense Interest income consists primarily of interest earned on our cash and cash equivalents and short-term investments.
Restructuring and Other Charges Restructuring and other charges consists of charges in connection with our two reductions in workforce initiated in 2023 and charges in connection with the closure of our China operations. Interest Income and Interest Expense Interest income consists primarily of interest earned on our cash and cash equivalents and short-term investments.
Specifically, because of the high sensitivity of our technology, we aim to focus on three indications in the next 2-3 years: immunotherapy (IO) monitoring, breast cancer, and lung cancer. We have announced collaborations with BC Cancer, Duke University, UCSF, Criterium, and Academic Breast Cancer Consortium that will focus on building the evidence-base for our technology and these indications.
We have collaborations with Cancer Research UK, University College London, and the Francis Crick Institute (the TRACERx study); The Royal Marsden; the Vall d'Hebron Institute of Oncology (VHIO); Duke University; the Dana-Farber Cancer Institute; University Medical Center Hamburg-Eppendorf (also known as UKE); and Criterium and the Academic Breast Cancer Consortium that will focus on building the evidence-base for our technology and these indications.
Changes in the assumptions can materially affect the fair value and ultimately how much stock-based compensation expense is recognized. These inputs are subjective and generally require significant analysis and judgment to develop. • Expected Term —The expected term assumption represents the weighted-average period that the stock-based awards are expected to be outstanding.
Changes in the assumptions can materially affect the fair value and ultimately how much other income (or expense) is recognized.
Material Cash Requirements Our material cash requirements in the short- and long-term consist primarily of variable costs of revenue, operating expenditures, capital expenditures, property leases, and other.
The $9.7 million increase in cash provided by financing activities during 2023 as compared to 2022 was driven by $6 million in proceeds from issuance of warrants to Tempus and $3.5 million in net proceeds from sales of common stock under our ATM facility, both of which did not occur during 2022. 62 Table of Contents Material Cash Requirements Our material cash requirements in the short- and long-term consist primarily of variable costs of revenue, operating expenditures, capital expenditures, property leases, and other.
Revenue from pharma tests, enterprise, and other customers was $56.6 million in 2022 compared to $39.8 million in 2021, an increase of 42%, driven by higher sales to Natera under our partnership to provide advanced tumor analysis for use in Natera's MRD testing offerings.
Revenue from enterprise sales was $31.7 million in 2023 compared to $26.6 million in 2022, an increase of 19%. Revenue from pharma tests was $31.9 million in 2023 compared to $29.6 million in 2022, an increase of 8%.