Biggest changeThe following table sets forth our consolidated statements of operations data: Year ended December 31, U.S. dollars in thousands, except share and per share data 2022 2021 2020 Net revenues $ 537,840 $ 535,031 $ 494,366 Cost of revenues 114,867 114,877 106,501 Gross profit 422,973 420,154 387,865 Operating costs and expenses: Research, development and clinical studies 206,085 201,303 132,010 Sales and marketing 173,658 137,057 118,017 General and administrative 132,753 126,127 107,437 Total operating costs and expenses 512,496 464,487 357,464 Operating income (loss) (89,523) (44,333) 30,401 Financial (expenses) income, net 7,677 (7,742) (12,299) Income (loss) before income tax (81,846) (52,075) 18,102 Income tax 10,688 6,276 (1,706) Net income (loss) $ (92,534) $ (58,351) $ 19,808 Basic net income (loss) per ordinary share $ (0.88) $ (0.56) $ 0.20 Weighted average number of ordinary shares used in computing basic net income (loss) per share 104,660,476 103,433,274 100,930,866 Diluted net income (loss) per ordinary share $ (0.88) $ (0.56) $ 0.18 Weighted average number of ordinary shares used in computing diluted net income (loss) per share 104,660,476 103,433,274 108,877,648 The following table details the share-based compensation expense included in costs and expenses: Year ended December 31, U.S. dollars in thousands 2022 2021 2020 Cost of revenues $ 4,690 $ 3,471 $ 2,221 Research, development and clinical studies 30,790 27,597 18,125 Sales and marketing 28,826 22,673 17,672 General and administrative 42,649 41,159 37,703 Total share-based compensation expense $ 106,955 $ 94,900 $ 75,721 Key performance indicators We believe certain commercial operating statistics are useful to investors in evaluating our commercial business as they help investors evaluate and compare the adoption of our Products from period to period.
Biggest changeThe following table sets forth our consolidated statements of operations data: Year ended December 31, U.S. dollars in thousands, except share and per share data 2023 2022 2021 Net revenues $ 509,338 $ 537,840 $ 535,031 Cost of revenues 128,280 114,867 114,877 Gross profit 381,058 422,973 420,154 Operating costs and expenses: Research, development and clinical studies 223,062 206,085 201,303 Sales and marketing 226,809 173,658 137,057 General and administrative 164,057 132,753 126,127 Total operating costs and expenses 613,928 512,496 464,487 Operating income (loss) (232,870) (89,523) (44,333) Financial (expenses) income, net 41,130 7,677 (7,742) Income (loss) before income tax (191,740) (81,846) (52,075) Income tax 15,303 10,688 6,276 Net income (loss) $ (207,043) $ (92,534) $ (58,351) Basic and diluted net income (loss) per ordinary share $ (1.95) $ (0.88) $ (0.56) Weighted average number of ordinary shares used in computing basic and diluted net income (loss) per share 106,391,178 104,660,476 103,433,274 The following table details the share-based compensation expense included in costs and expenses: Year ended December 31, U.S. dollars in thousands 2023 2022 2021 Cost of revenues $ 6,587 $ 4,690 $ 3,471 Research, development and clinical studies 31,827 30,790 27,597 Sales and marketing 35,968 28,826 22,673 General and administrative 41,226 42,649 41,159 Total share-based compensation expense $ 115,608 $ 106,955 $ 94,900 Key performance indicators We believe certain commercial operating statistics are useful to investors in evaluating our commercial business as they help investors evaluate and compare the adoption of our Products from period to period.
We market Optune and Optune Lua in multiple countries around the globe with the majority of our revenues coming from the use of Optune in the U.S., Germany and Japan. We are actively evaluating opportunities to expand our international footprint. We believe the physical mechanisms of action behind TTFields therapy may be broadly applicable to solid tumor cancers.
We market Optune Gio and Optune Lua in multiple countries around the globe with the majority of our revenues coming from the use of Optune Gio in the U.S., Germany and Japan. We are actively evaluating opportunities to expand our international footprint. We believe the physical mechanisms of action behind TTFields therapy may be broadly applicable to solid tumor cancers.
The LUNAR study also showed a statistically significant and clinically meaningful improvement in overall survival when patients were treated with TTFields and immune checkpoint inhibitors, as compared to those treated with immune checkpoint inhibitors alone, and a positive trend in overall survival when patients were treated with TTFields and docetaxel versus docetaxel alone.
The LUNAR study also showed a statistically significant and clinically meaningful improvement in overall survival when patients were treated with TTFields therapy and immune checkpoint inhibitors, as compared to those treated with immune checkpoint inhibitors alone, and a positive trend in overall survival when patients were treated with TTFields therapy and docetaxel versus docetaxel alone.
In January 2021, we irrevocably elected to settle all conversions of Notes by a combination of cash and our ordinary shares and that the cash portion per $1,000 principal amount of Notes for all conversion settlements shall be $1,000, Accordingly, from and after the date of the election, upon conversion of any Notes, holders of Notes will receive, with respect to each $1,000 principal amount of Notes converted, cash in an amount up to $1,000 and the balance of the conversion value, if any, in our ordinary shares The Notes are not redeemable prior to November 6, 2023, except in the event of certain tax law changes.
In January 2021, we irrevocably elected to settle all conversions of Notes by a combination of cash and our ordinary shares and that the cash portion per $1,000 principal amount of Notes for all conversion settlements shall be $1,000, Accordingly, from and after the date of the election, upon conversion of any Notes, holders of Notes will receive, with respect to each $1,000 principal amount of Notes converted, cash in an amount up to $1,000 and the balance of the conversion value, if any, in our ordinary shares The Notes were not redeemable prior to November 6, 2023, except in the event of certain tax law changes.
We have historically held substantially all of our cash balances in U.S. dollar denominated accounts to minimize the risk of translational currency exposure. 54 Critical accounting policies and estimates In accordance with U.S.
We have historically held substantially all of our cash balances in U.S. dollar denominated accounts to minimize the risk of translational currency exposure. Critical accounting policies and estimates In accordance with U.S.
Cost of revenues per active patient is calculated by dividing the cost of revenues for the year less product sales to Zai for the year by the average of the active patients at the end of the each quarter in the current year and the end of the year active patients from the prior year.
Cost of revenues per active patient is calculated by dividing the cost of revenues for the year less product sales to Zai for the year by the average of the active patients at the end of the each quarter in the current year and the end 57 of the year active patients from the prior year.
Research, development and clinical studies Our research, development and clinical studies activity is focused on advancing TTFields through clinical studies across multiple solid tumor types and improving the efficacy and usability of our devices.
Research, development and clinical studies Our research, development and clinical studies activity is focused on advancing TTFields therapy through clinical studies across multiple solid tumor types and improving the efficacy and usability of our devices.
Treasury securities with periods commensurate with the expected term of the options being valued; and • the expected dividend yield, which we estimate to be zero based on the fact that we have never paid cash dividends and have no present intention to pay cash dividends. For information about our ESPP, see Note 14 to the Consolidated Financial Statements.
Treasury securities with periods commensurate with the expected term of the options being valued; and • the expected dividend yield, which we estimate to be zero based on the fact that we have never paid cash dividends and have no present intention to pay cash dividends. For information about our ESPP, see Note 15 to the Consolidated Financial Statements.
Optune Lua is approved by the FDA under the Humanitarian Device Exemption ("HDE") pathway to treatment malignant pleural mesothelioma ("MPM") together with standard chemotherapies. We have also received CE certification in the EU and approval or local registration to market Optune Lua in certain other countries.
Optune Lua is approved by the FDA under the Humanitarian Device Exemption ("HDE") pathway to treat malignant pleural mesothelioma and pleural mesothelioma (together, "MPM") together with standard chemotherapies. We have also received CE certification in the EU and approval or local registration to market Optune Lua in certain other countries.
For additional information, see Note 14 to the Consolidated Financial Statements. Long-lived assets Property and equipment and field equipment are stated at cost, net of accumulated depreciation. Depreciation is calculated using the straight-line method over the estimated useful life of the relevant asset.
For additional information, see Note 15 to the Consolidated Financial Statements. Long-lived assets Property and equipment and field equipment are stated at cost, net of accumulated depreciation. Depreciation is calculated using the straight-line method over the estimated useful life of the relevant asset.
Adjustments to net income for non-cash items include share-based compensation, depreciation, amortization and asset write-downs. Operating cash flows are also impacted by changes in operating assets and liabilities, principally trade payables, deferred revenues, other payables, prepaid expenses, inventory and trade receivables.
Adjustments to net loss for non-cash items include share-based compensation, depreciation, amortization and asset write-downs. Operating cash flows are also impacted by changes in operating assets and liabilities, principally trade payables, deferred revenues, other payables, prepaid expenses, inventory and trade receivables.
Our key priorities are to drive commercial adoption of Optune and Optune Lua, our commercial TTFields devices, and to advance clinical and product development programs intended to extend overall survival in some of the most aggressive forms of cancer. Optune is approved by the U.S.
Our key priorities are to drive commercial adoption of Optune Gio ® and Optune Lua ® , our commercial TTFields therapy devices, and to advance clinical and product development programs intended to extend overall survival in some of the most aggressive forms of cancer. Optune Gio is approved by the U.S.
We believe our cash, cash equivalents and short-term investments as of December 31, 2022 are sufficient for our operations for at least the next 12 months based on our existing business plan and our ability to control the timing of significant expense commitments.
We believe our cash, cash equivalents and short-term investments as of December 31, 2023 are sufficient for our operations for at least the next 12 months based on our existing business plan and our ability to control the timing of significant expense commitments.
We also have a CE certificate to market Optune for the treatment of GBM in the European Union ("EU"), as well as approval or local registration in the United Kingdom ("UK"), Japan, Canada and certain other countries.
We also have a CE certificate to market Optune Gio for the treatment of GBM in the 61 European Union ("EU"), as well as approval or local registration in the United Kingdom ("UK"), Japan, Canada and certain other countries.
Financial expenses, net Financial expenses, net primarily consists of credit facility interest expense and related debt issuance costs, interest income from cash balances and short-term investments and gains (losses) from foreign currency transactions. Our reporting currency is the U.S. dollar.
Financial expenses, net Financial expenses, net, primarily consists of bank fees, credit facility interest expense and related debt issuance costs, interest income from cash balances and short-term investments and gains (losses) from foreign currency 53 transactions. Our reporting currency is the U.S. dollar.
We believe collections from those claims which were most accessible were largely exhausted in 2022 and the remaining outstanding claims will take time to collect. As a result, we expect future net revenue to more closely reflect core drivers of net revenue: number of active patients on therapy, duration of therapy, and net realized price per month.
We believe collections from these claims that were most accessible were largely exhausted in 2022 and the remaining outstanding claims will take time to collect. As a result, we expect future net revenue to more closely reflect core drivers of net revenue: number of active patients on therapy, duration of therapy, and net realized price per month.
("Zai") a license to commercialize Optune in China, Hong Kong, Macau and Taiwan ("Greater China") under a License and Collaboration Agreement (the "Zai Agreement"). The Zai Agreement also establishes a development partnership intended to accelerate the development of TTFields in multiple solid tumor cancer indications. For additional information, see Note 12 to the Consolidated Financial Statements.
("Zai") a license to commercialize our Products in China, Hong Kong, Macau and Taiwan ("Greater China") under a License and Collaboration Agreement (the "Zai Agreement"). The Zai Agreement also establishes a development partnership intended to accelerate the development of TTFields therapy in multiple solid tumor cancer indications. For additional information, see Note 12 to the Consolidated Financial Statements.
We recognize compensation costs for the value of performance stock units ("PSU") over the performance period when the vesting conditions become probable in accordance with ASC 718. 55 The table below summarizes the assumptions that were used to estimate the fair value of the options granted to employees during the periods presented: Year ended December 31, 2022 2021 2020 Expected term (years) 5.33-5.83 5.50-6.00 5.50-6.00 Expected volatility 60%-62% 60%-63% 54%-56% Risk-free interest rate 1.58%-4.23% 0.78%-1.27% 0.30%-0.86% Dividend yield 0.00% 0.00% 0.00% If any of the assumptions used in the Black-Scholes option pricing model change significantly, share-based compensation for future awards may differ materially from the awards granted previously.
We recognize compensation costs for the value of performance stock units ("PSU") over the performance period when the vesting conditions become probable in accordance with ASC 718. 54 The table below summarizes the assumptions that were used to estimate the fair value of the options granted to employees during the periods presented: Year ended December 31, 2023 2022 2021 Expected term (years) 5.50-6.00 5.33-5.83 5.50-6.00 Expected volatility 63%-70% 60%-62% 60%-63% Risk-free interest rate 3.48%-4.79% 1.58%-4.23% 0.78%-1.27% Dividend yield 0.00% 0.00% 0.00% If any of the assumptions used in the Black-Scholes option pricing model change significantly, share-based compensation for future awards may differ materially from the awards granted previously.
Liquidity and capital resources We have incurred significant losses and cumulative negative cash flows from operations with only limited and intermittent operating profits since our founding in 2000. As of December 31, 2022, we had an accumulated deficit of $778.5 million.
Liquidity and capital resources We have incurred significant losses and cumulative negative cash flows from operations with only limited and intermittent operating profits since our founding in 2000. As of December 31, 2023, we had an accumulated deficit of $985.5 million.
Sales and marketing Sales and marketing expenses consist primarily of personnel costs, travel, marketing and promotional activities, medical education, commercial shipping and facilities costs.
Sales and marketing Sales and marketing expenses consist primarily of personnel costs, travel, marketing and promotional activities, medical education, market access, commercial shipping and facilities costs.
See "Results of Operations" in Part II, Item 7, Management's Discussion and Analysis of Financial Condition and Results of Operations in the Company's 2021 Annual Report on Form 10-K, filed with the SEC on February 24, 2022, for an analysis of the 2021 results as compared to 2020.
See "Results of Operations" in Part II, Item 7, Management's Discussion and Analysis of Financial Condition and Results of Operations in the Company's 2022 Annual Report on Form 10-K, filed with the SEC on February 23, 2023, for an analysis of the 2022 results as compared to 2021.
So long as our ordinary shares are publicly traded in a liquid market, we will rely on the daily trading price of our ordinary shares when we estimate the fair value of options granted. We incurred share-based compensation expense of $107.0 million, $94.9 million and $75.7 million during the years ended December 31, 2022, 2021 and 2020, respectively.
So long as our ordinary shares are publicly traded in a liquid market, we will rely on the daily trading price of our ordinary shares when we estimate the fair value of options granted. We incurred share-based compensation expense of $115.6 million, $107.0 million and $94.9 million during the years ended December 31, 2023, 2022 and 2021, respectively.
Financing activities To date, our primary financing activities have been the sale of equity and the proceeds from long-term loans. Net cash provided by financing activities was $15.5 million for the year ended December 31, 2022 compared to $25.7 million for the year ended December 31, 2021.
Financing activities To date, our primary financing activities have been the sale of equity and the proceeds from long-term loans. Net cash provided by financing activities was $15.8 million for the year ended December 31, 2023 compared to $15.5 million for the year ended December 31, 2022.
Upcoming use of cash in operations will include payments in the normal course of business of $42.1 million in purchase obligations with certain of our suppliers, primarily for the purchase of Product components along with other commitments to purchase goods or services. These amounts include approximately $30.6 million of commitments with three major suppliers.
Upcoming use of cash in operations will include payments in the normal course of business of $43.1 million in purchase obligations with certain of our suppliers, primarily for the purchase of Product components along with other commitments to purchase goods or services. These amounts include approximately $34.5 million of commitments with three major suppliers.
We continue to evaluate and plan for the potential effects of COVID-19 on our business moving forward. The extent to which the COVID-19 pandemic may impact our business and clinical studies in the future will depend on further developments, which are highly uncertain and cannot be predicted with confidence.
We continue to evaluate and plan for the potential effects of a possible COVID-19 resurgence or other similar outbreak on our business moving forward. The extent to which the COVID-19 pandemic or other outbreak may impact our business and clinical studies in the future will depend on further developments, which are highly uncertain and cannot be predicted with confidence.
As of December 31, 2022, we have unrecognized compensation expense of $125.6 million, which is expected to be recognized over a weighted average period of approximately 2.38 years. We expect to continue to grant equity awards in the future, and to the extent that we do, our recognized share-based compensation expense will likely increase.
As of December 31, 2023, we have unrecognized compensation expense of $98.6 million, which is expected to be recognized over a weighted average period of approximately 1.64 years. We expect to continue to grant equity awards in the future, and to the extent that we do, our recognized share-based compensation expense will likely increase.
The net cash provided by financing activities for 2021 was primarily attributable to $21.2 million in proceeds from the exercise of options and $4.5 million in proceeds from the issuance of shares pursuant to the ESPP. 61 Convertible Notes On November 5, 2020, we issued $575.0 million aggregate principal amount of 0% Convertible Senior Notes due 2025 (the “Notes”).
The net cash provided by financing activities for 2022 was primarily 60 attributable to $10.3 million in proceeds from the exercise of options and $5.2 million in proceeds from the issuance of shares pursuant to the ESPP. Convertible Notes On November 5, 2020, we issued $575.0 million aggregate principal amount of 0% Convertible Senior Notes due 2025 (the “Notes”).
For additional information, see Note 13 to the Consolidated Financial Statements. 56 Results of operations The following discussion provides an analysis of our results of operations and reasons for material changes therein for 2022 as compared to 2021.
For additional information, see Note 14 to the Consolidated Financial Statements. 55 Results of operations The following discussion provides an analysis of our results of operations and reasons for material changes therein for 2023 as compared to 2022.
As a result, we may need to raise additional capital to fund our operations. 60 The following summary of our cash flows for the periods indicated has been derived from our consolidated financial statements, which are included elsewhere in this Annual Report: Year ended December 31, U.S. dollars in thousands 2022 2021 2020 Net cash provided by (used in) operating activities $ 30,788 $ 82,756 $ 99,148 Net cash provided by (used in) investing activities (139,957) (144,834) (472,847) Net cash provided by (used in) financing activities 15,491 25,702 440,209 Effect of exchange rate changes on cash and cash equivalents (97) (188) 247 Net increase (decrease) in cash, cash equivalents and restricted cash $ (93,775) $ (36,564) $ 66,757 Operating activities Net cash provided by operating activities primarily represents our net income for the periods presented.
As a result, we may need to raise additional capital to fund our operations. 59 The following summary of our cash flows for the periods indicated has been derived from our consolidated financial statements, which are included elsewhere in this Annual Report: Year ended December 31, U.S. dollars in thousands 2023 2022 2021 Net cash provided by (used in) operating activities $ (73,336) $ 30,788 $ 82,756 Net cash provided by (used in) investing activities 184,148 (139,957) (144,834) Net cash provided by (used in) financing activities 15,787 15,491 25,702 Effect of exchange rate changes on cash and cash equivalents 131 (97) (188) Net increase (decrease) in cash, cash equivalents and restricted cash $ 126,730 $ (93,775) $ (36,564) Operating activities Net cash used in operating activities primarily represents our net loss for the periods presented.
Research, development and clinical studies costs, including direct and allocated expenses, are expensed as incurred and consist primarily of the following: • personnel costs for those employees involved in our preclinical and basic research, clinical development programs, clinical affairs, product development and regulatory activities; • costs to conduct research, product development and clinical study activity through agreements with contract research organizations and other third parties; • manufacturing expenses associated with our Products, including durable components and disposable arrays, utilized in clinical studies and other research; • costs associated with medical grants, publications, presentations and investigator-sponsored trials; • professional fees related to regulatory approvals and conformity assessment procedures; and • facilities, depreciation and other allocated expenses, which include direct and allocated expenses for rent and maintenance of facilities, depreciation of leasehold improvements and equipment and laboratory and other supplies. 53 The following table summarizes our research, development and clinical study expenses by program for the years ended December 31, 2022, 2021 and 2020: Year ended December 31, U.S. dollars in thousands 2022 2021 2020 Preclinical and basic research $ 16,922 $ 15,580 $ 12,079 Clinical development programs: LUNAR 6,905 9,069 8,261 INNOVATE - 3 9,494 17,708 14,190 METIS 8,480 7,056 5,147 PANOVA - 3 22,185 15,026 7,033 TRIDENT 12,162 12,588 3,709 Other clinical studies 5,524 4,634 2,764 Clinical administration 22,690 19,764 13,158 Product development 15,323 15,248 9,710 Clinical affairs 19,891 24,486 21,058 Other research and development costs (1) 35,719 32,547 16,776 Share based compensation 30,790 27,597 18,125 Research, development and clinical studies $ 206,085 $ 201,303 $ 132,010 (1) Other research, development and clinical study costs include regulatory affairs, quality assurance, intellectual property, product safety, allocated facilities and other overhead costs.
Research, development and clinical studies costs, including direct and allocated expenses, are expensed as incurred and consist primarily of the following: • personnel costs for those employees involved in our preclinical and basic research, clinical development programs, clinical affairs, product development and regulatory activities; • costs to conduct research, product development and clinical study activity through agreements with contract research organizations and other third parties; • manufacturing expenses associated with our Products, including durable components and disposable arrays, utilized in clinical studies and other research; • costs associated with publications, presentations and investigator-sponsored trials; • professional fees related to regulatory approvals and conformity assessment procedures; and • facilities, depreciation and other allocated expenses, which include direct and allocated expenses for rent and maintenance of facilities, depreciation of leasehold improvements and equipment and laboratory and other supplies. 52 The following table summarizes our research, development and clinical study expenses by program for the years ended December 31, 2023, 2022 and 2021: Year ended December 31, U.S. dollars in thousands 2023 2022 2021 Preclinical and basic research $ 18,936 $ 16,922 $ 15,580 Clinical development programs: LUNAR 6,846 6,905 9,069 LUNAR - 2 2,999 — — INNOVATE - 3 7,810 9,494 17,708 METIS 5,758 8,480 7,056 PANOVA - 3 18,243 22,185 15,026 TRIDENT 20,348 12,162 12,588 Other clinical studies 6,640 5,524 4,634 Clinical administration 25,363 22,690 19,764 Product development 18,219 15,323 15,248 Clinical affairs 15,935 19,891 24,486 Other research and development costs (1) 44,138 35,719 32,547 Share based compensation 31,827 30,790 27,597 Research, development and clinical studies $ 223,062 $ 206,085 $ 201,303 (1) Other research, development and clinical study costs include regulatory affairs, quality assurance, intellectual property, product safety, allocated facilities and other overhead costs.
Over the next few years, we expect to continue to make significant expenditures associated with selling and marketing our Products, primarily in connection with continued commercialization in North America, the EU and Japan for the treatment of our approved indications. General and administrative General and administrative expenses consist primarily of personnel, professional fees and facilities costs.
Over the next few years, we expect to continue to make significant expenditures associated with selling and marketing our Products, primarily in connection with continued commercialization in North America, the EU and Japan for the treatment of our approved indications.
Product's cost sold to Zai totaled $11.1 million for the year ended December 31, 2022 compared to $11.3 million for the year ended December 31, 2021. Gross margin was 79% for the year ended December 31, 2022 and 79% for the year ended December 31, 2021.
Product's cost sold to Zai totaled $12.0 million for the year ended December 31, 2023 compared to $11.1 million for the year ended December 31, 2022. Gross margin was 75% for the year ended December 31, 2023 and 79% for the year ended December 31, 2022.
To date, we primarily have financed our operations through the issuance and sale of equity and the proceeds from long-term loans. At December 31, 2022, we had $115.3 million in cash and cash equivalents and $854.1 million in short-term investments.
To date, we primarily have financed our operations through the issuance and sale of equity and the proceeds from long-term loans. At December 31, 2023, we had $240.8 million in cash and cash equivalents and $669.8 million in short-term investments.
Our net revenues were $537.8 million for the year ended December 31, 2022, $535.0 million for the year ended December 31, 2021 and $494.4 million for the year ended December 31, 2020.
Our net revenues were $509.3 million for the year ended December 31, 2023, $537.8 million for the year ended December 31, 2022 and $535.0 million for the year ended December 31, 2021.
Prescriptions are a leading indicator of 57 demand. A "prescription received" is a commercial order for Optune or Optune Lua that is received from a physician certified to treat patients with our Products for a patient not previously on Optune or Optune Lua. Orders to renew or extend treatment are not included in this total.
Prescriptions are a leading indicator of demand. A "prescription received" is a commercial order for Optune Gio or Optune Lua that is received from a physician certified to treat patients with our Products for a patient not previously on Optune Gio or Optune Lua.
The decrease in net cash provided by operating activities was primarily driven by a $43.2 million increase in sales, marketing, general and administrative expenses to enhance our capabilities in anticipation of potential future approvals of new indications and entry into potential new markets, and a $4.8 million increase in research and development expenses.
In addition, the decrease in net cash from operating activities was driven by increased expenses, primarily driven by a $84.5 million increase in sales, marketing, general and administrative expenses to enhance our capabilities in anticipation of potential future approvals of new indications and entry into potential new markets, and a $17.0 million increase in research and development expenses.
The net cash provided by financing activities for 2022 was primarily attributable to $10.3 million in proceeds from the exercise of options and $5.2 million in proceeds from the issuance of shares pursuant to the ESPP.
The net cash provided by financing activities for 2023 was primarily attributable to $11.4 million in proceeds from the exercise of options and $4.4 million in proceeds from the issuance of shares pursuant to the ESPP.
Net cash used in investing activities was $140.0 million for the year ended December 31, 2022 compared to net cash used in investing activities of $144.8 million for the year ended December 31, 2021.
Net cash provided by investing activities was $184.1 million for the year ended December 31, 2023 compared to net cash used in investing activities of $140.0 million for the year ended December 31, 2022.
We believe we possess global commercialization rights to our Products in oncology and are well-positioned to extend those rights into the future as we continue to find innovative ways to improve our Products. In 2018, we granted Zai Lab (Shanghai) Co., Ltd.
Our intellectual property portfolio contains hundreds of issued patents and numerous patent applications pending 62 worldwide. We believe we possess global commercialization rights to our Products in oncology and are well-positioned to extend those rights into the future as we continue to find innovative ways to improve our Products. In 2018, we granted Zai Lab (Shanghai) Co., Ltd.
We anticipate expanding our clinical pipeline over time to study the safety and efficacy of TTFields for additional solid tumor indications and combinations with other cancer treatment modalities.
We anticipate expanding our clinical pipeline over time to study the safety and efficacy of TTFields therapy for additional solid tumor indications and combinations with other cancer treatment modalities. . The table below presents the current status of the ongoing clinical trials in our pipeline and anticipated timing of data.
We recently completed patient follow-up and announced top line results from our pivotal LUNAR study evaluating the use of TTFields in the treatment of non-small cell lung cancer ("NSCLC") together with standard therapies. Patients treated with TTFields and standard therapies demonstrated a statistically significant and clinically meaningful improvement in overall survival over standard therapies alone.
In 2023, we announced results from our phase 3 LUNAR study evaluating the use of TTFields together with standard therapies following platinum-based treatment failure in the treatment of patients with metastatic non-small cell lung cancer ("NSCLC"). Patients treated with TTFields therapy and standard therapies demonstrated a statistically significant and clinically meaningful improvement in overall survival over standard therapies alone.
Non-GAAP financial measures We also measure our performance based upon a non-U.S. GAAP measurement of earnings before interest, taxes, depreciation, amortization and shared-based compensation ("Adjusted EBITDA").
The increase reflects a change in the mix of applicable statutory tax rates in active jurisdictions. 58 Non-GAAP financial measures We also measure our performance based upon a non-U.S. GAAP measurement of earnings before interest, taxes, depreciation, amortization and shared-based compensation ("Adjusted EBITDA").
Net cash provided by operating activities was $30.8 million for the year ended December 31, 2022 compared to $82.8 million for the year ended December 31, 2021 a decrease of $ 52.0 million.
Net cash used in operating activities was $73.3 million for the year ended December 31, 2023 compared to $30.8 million provided by operating activities for the year ended December 31, 2022 a decrease of $ 104.1 million.
The net cash used in investing activities for 2022 was primarily attributable to $21.4 million in property and equipment and the net purchase of $118.6 million in short-term investments. The net cash used in investing activities for 2021 was primary attributable to $24.2 million in property and equipment and the net purchase of $120.7 million in short-term investments.
The net cash provided by investing activities for 2023 was primarily attributable to net proceeds of $211.2 million from short-term investments, offset by $27.1 million invested in property and equipment. The net cash used in investing activities for 2022 was primary attributable to $21.4 million in property and equipment and the net purchase of $118.6 million in short-term investments.
References to the words "we," "our," "us," and the "Company" in this report refer to NovoCure Limited, including its consolidated subsidiaries . Overview We are a global oncology company with a proprietary platform technology called Tumor Treating Fields ("TTFields"), which are electric fields that exert physical forces to kill cancer cells via a variety of mechanisms.
Overview We are a global oncology company with a proprietary platform technology called Tumor Treating Fields ("TTFields"), which are electric fields that exert physical forces to kill cancer cells via a variety of mechanisms.
Income tax expenses increased by $4.4 million, or 70%, resulting in a tax expense of $10.7 million for the year ended December 31, 2022 compared to a tax expense of $6.3 million for the year ended December 31, 2021. The increase was primarily due to an increase in income before taxes in the U.S.
Income tax expenses increased by $4.6 million, or 43%, resulting in a tax expense of $15.3 million for the year ended December 31, 2023 compared to a tax expense of $10.7 million for the year ended December 31, 2022.
Year ended December 31, 2022 2021 2020 Net income (loss) $ (92,534) $ (58,351) $ 19,808 Add: Income tax 10,688 6,276 (1,706) Add: Financial expenses (income), net (7,677) 7,742 12,299 Add: Depreciation and amortization 10,624 10,251 9,150 EBITDA $ (78,899) $ (34,082) $ 39,551 Add: Share-based compensation 106,955 94,900 75,721 Adjusted EBITDA $ 28,056 $ 60,818 $ 115,272 Adjusted EBITDA decreased by $32.8 million, or 54%, to $28.1 million for the year ended December 31, 2022 from $60.8 million for the year ended December 31, 2021.
Year ended December 31, 2023 2022 2021 Net income (loss) $ (207,043) $ (92,534) $ (58,351) Add: Income tax 15,303 10,688 6,276 Add: Financial expenses (income), net (41,130) (7,677) 7,742 Add: Depreciation and amortization 10,969 10,624 10,251 EBITDA $ (221,901) $ (78,899) $ (34,082) Add: Share-based compensation 115,608 106,955 94,900 Adjusted EBITDA $ (106,293) $ 28,056 $ 60,818 Adjusted EBITDA decreased by $134.3 million, or 479%, to $(106.3) million for the year ended December 31, 2023 from $28.1 million for the year ended December 31, 2022.
Sales and marketing expenses increased by $36.6 million, or 27%, to $173.7 million for the year ended December 31, 2022 from $137.1 million for the year ended December 31, 2021.
Sales and marketing expenses increased by $53.2 million, or 31%, to $226.8 million for the year ended December 31, 2023 from $173.7 million for the year ended December 31, 2022.
Term loan credit facility On November 6, 2020, we entered into a new three-year $150.0 million senior secured revolving credit facility with a syndicate of relationship banks (the "2020 Credit Facility").
Term loan credit facility On November 6, 2020, we entered into a new three-year $150.0 million senior secured revolving credit facility with a syndicate of relationship banks (the "2020 Credit Facility"). On February 17, 2023, we gave irrevocable notice to the administrative agent under the 2020 Credit Facility that we terminated all commitments, effective February 22, 2023.
Centers for Disease Control and Prevention, and local health authorities in all of our active markets and we have adjusted the way we conduct business to adapt to the evolving situation. The COVID-19 pandemic did not have a material impact on our financial results throughout 2022.
Centers for Disease Control and Prevention, and local health authorities in all of our active markets and will continue to do so. The COVID-19 pandemic did not have a material impact on our financial results through the fourth quarter of 2023.
At December 31, 2022, our cash, cash equivalents and short-term investments totaled $969.4 million, an increase of $31.7 million compared to $937.7 million at December 31, 2021. The increase was primarily due to net cash generated by operating activities and the exercise of options.
At December 31, 2023, our cash, cash equivalents and short-term investments totaled $910.6 million, a decrease of $58.8 million compared to $969.4 million at December 31, 2022. The decrease was primarily due to net cash used in operating activities partially offset by the net cash provided by the exercise of options.
Net revenues increased by $2.8 million, or 1%, to $537.8 million for the year ended December 31, 2022 from $535.0 million for the year ended December 31, 2021.
Net revenues decreased by $28.5 million, or 5%, to $509.3 million for the year ended December 31, 2023 from $537.8 million for the year ended December 31, 2022.
Research, development and clinical studies expenses increased by $4.8 million, or 2%, to $206.1 million for the year ended December 31, 2022 from $201.3 million for the year ended December 31, 2021. The change is driven by an increase of $4.8 million in product development and regulatory affairs expenses.
Research, development and clinical studies expenses increased by $17.0 million, or 8%, to $223.1 million for the year ended December 31, 2023 from $206.1 million for the year ended December 31, 2022. The change is primarily due to an increase of $11.0 million in costs incurred in support of ongoing and anticipated clinical trial launches and regulatory filings.
Our net loss was $92.5 million for the year ended December 31, 2022, net loss was $58.4 million for the year ended December 31, 2021 and net income was $19.8 million for the year ended December 31, 2020.
Our net loss was $207.0 million for the year ended December 31, 2023, net loss was $92.5 million for the year ended December 31, 2022 and net loss was $58.4 million for the year ended December 31, 2021. As of December 31, 2023, we had an accumulated deficit of $985.5 million.
In 2022, we recorded $32 million in revenue from the successful appeal of previously denied claims for Medicare fee-for-service beneficiaries billed prior to established coverage. We continue to actively appeal and pursue previously denied claims for beneficiaries billed prior to established coverage, but the cadence and amount of these Medicare payments are impossible to predict.
For the year ended December 31, 2023, we recorded $5 million in revenue from the successful appeal of previously denied claims for Medicare fee-for-service beneficiaries billed prior to established coverage, a decrease of $27 million from $32 million recorded for the year ended December 31, 2022.
The following table includes certain commercial operating statistics for and as of the end of the periods presented.
Orders to renew or extend treatment are not included in this total. 56 The following table includes certain commercial operating statistics for and as of the end of the periods presented.
Year ended December 31, 2022 2021 Change % Change Cost of revenues $ 114,867 $ 114,877 $ (10) — % Cost of revenues. Our cost of revenues were $114.9 million for the year ended December 31, 2022, virtually unchanged from $114.9 million for the year ended December 31, 2021.
Year ended December 31, 2023 2022 Change % Change Cost of revenues $ 128,280 $ 114,867 $ 13,413 12 % Cost of revenues. Our cost of revenues were $128.3 million for the year ended December 31, 2023, an increase of $13.4 million, or 12%, from $114.9 million for the year ended December 31, 2022.
Year ended December 31, 2022 2021 Change % Change Financial (expenses) income, net $ 7,677 $ (7,742) $ 15,419 (199) % Financial (expenses) income, net. Financial expenses, net, decreased by $15.4 million, or 199%, to $7.7 million income for the year ended December 31, 2022 from $7.7 million expense for the year ended December 31, 2021.
Year ended December 31, 2023 2022 Change % Change Financial (expenses) income, net $ 41,130 $ 7,677 $ 33,453 436 % Financial (expenses) income, net. Financial income, net, increased by $33.5 million, or 436%, to $41.1 million income for the year ended December 31, 2023 from $7.7 million income for the year ended December 31, 2022.
On February 17, 2023, we gave irrevocable notice to the administrative agent under the 2020 Credit Facility that we terminated all commitments, effective February 22, 2023. This effectively terminated the 2020 Credit Facility, as our ability to borrow and our obligations to comply with all covenants ended on such date.
This effectively terminated the 2020 Credit Facility, as our ability to borrow and our obligations to comply with all covenants ended on such date. The liens and guaranties in favor of the lenders are released. There were no early termination fees payable and as of February 22, 2023 we had no outstanding balance borrowed under the 2020 Credit Facility.
Impact of COVID-19 In March 2020, the World Health Organization (“WHO”) declared COVID-19 a global pandemic. Since the pandemic began, we have been following the guidance of the WHO, the U.S.
Impact of COVID-19 On May 5, 2023, the World Health Organization (“WHO”) declared the end of the COVID-19 pandemic as a public health emergency of international concern, however the WHO maintains that the virus remains a global health threat. Since the pandemic began, we have followed the guidance of the WHO, the U.S.
As of December 31, 2022, we had an accumulated deficit of $778.5 million. 52 Commentary on Results of Operations Net revenues Our revenues are primarily derived from patients using our Products in our active markets. We charge for treatment with our Products on a monthly basis.
References to the words "we," "our," "us," and the "Company" in this report refer to NovoCure Limited, including its consolidated subsidiaries . Commentary on Results of Operations Net revenues Our revenues are primarily derived from patients using our Products in our active markets. We charge for treatment with our Products on a monthly basis.
This decrease was primarily driven by an increase in sales and marketing expenses intended to increase awareness and acceptance of TTFields in our approved indications, enhance our commercial capabilities in anticipation of potential future approvals in new indications, and expand our international footprint.
This decrease was primarily attributable to increased growth investments intended to expand our capacity to treat larger patient populations, to enhance commercial capabilities and to increase awareness of TTFields in anticipation of potential future approvals in new indications, and a reduction in revenue as described above.
The table below presents the current status of the ongoing clinical studies in our pipeline and anticipated timing of data. 51 Our therapy is delivered through a medical device and we continue to advance our Products with the intention to extend survival and maintain quality of life for patients.
Our therapy is delivered through a medical device and we continue to advance our Products with the intention to extend survival and maintain quality of life for patients. We have several product development programs underway that are designed to optimize the delivery of TTFields to the target tumor and enhance patient ease of use.
Excluding sales to Zai, cost of revenues per 58 active patient per month were $2,481 for the year ended December 31, 2022 compared to $2,474 for the year ended December 31, 2021.
Excluding sales to Zai, cost of revenues per active patient per month were $2,714 for the year ended December 31, 2023 compared to $2,481 for the year ended December 31, 2022 driven by higher costs of arrays from our initial roll out of a next generation array and an increase in capacity of patient support services in anticipation of new indications.
Additionally, we are investing in market access capabilities in order to evaluate opportunities, identify optimal access pathways, and successfully gain reimbursement in new geographies. General and administrative expenses. General and administrative expenses increased by $6.6 million, or 5%, to $132.8 million for the year ended December 31, 2022 from $126.1 million for the year ended December 31, 2021.
General and administrative expenses increased by $31.3 million, or 24%, to $164.1 million for the year ended December 31, 2023 from $132.8 million for the year ended December 31, 2022.
Year ended December 31, 2022 2021 Change % Change Operating expenses: Research, development and clinical studies $ 206,085 $ 201,303 $ 4,782 2 % Sales and marketing 173,658 137,057 36,601 27 % General and administrative 132,753 126,127 6,626 5 % Total operating expenses $ 512,496 $ 464,487 $ 48,009 10 % Research, development and clinical studies expenses.
Year ended December 31, 2023 2022 Change % Change Operating expenses: Research, development and clinical studies $ 223,062 $ 206,085 $ 16,977 8 % Sales and marketing 226,809 173,658 53,151 31 % General and administrative 164,057 132,753 31,304 24 % Total operating expenses $ 613,928 $ 512,496 $ 101,432 20 % Research, development and clinical studies expenses.
In 2022, financial income was primary driven by interest income and amortization of investment premiums on our cash, cash equivalents and short term investments. In 2021, financial expenses were primarily driven by foreign exchange expenses. 59 Year ended December 31, 2022 2021 Change % Change Income tax $ 10,688 $ 6,276 $ 4,412 70 % Income taxes.
The increase was primarily driven by an increase in interest income of $30.4 million and a decrease of foreign exchange expenses of $3.1 million. Year ended December 31, 2023 2022 Change % Change Income tax $ 15,303 $ 10,688 $ 4,615 43 % Income taxes.
The change primarily was due to increases of $5.0 million and $2.5 million in information technology infrastructure and supply chain optimization, respectively, and offset by a decrease in expenses associated with personnel costs and professional services.
The change was due to increases of $20.2 million in costs associated with increased personnel and services to support our anticipated launch in NSCLC and new geographies, as well as $11.1 million in costs associated with information technology services and personnel.
We have relied heavily on virtual engagement to manage these educational efforts since the onset of the pandemic, which poses challenges to our ability to effectively communicate and engage with our customers and partners around the world. Given the aggressive nature of the cancers that we treat, we believe that the fundamental value proposition of the TTFields platform remains unchanged.
For example, in many locations staffing levels at clinical trial sites have not returned to pre-pandemic levels, and our ability to conduct and monitor clinical studies may be impacted. Given the aggressive nature of the cancers that we treat, we believe that the fundamental value proposition of the TTFields platform remains unchanged.