Biggest changeRevenues by Product Category Years ended December 31, 2023 2022 % of % of Amount Revenues Amount Revenues (in thousands, except percentages) NeuroStar Advanced Therapy System $ 16,460 24 % $ 16,575 26 % Treatment sessions 50,896 73 % 45,077 71 % Other 1,980 3 % 1,754 4 % Total U.S. revenues $ 69,336 100 % $ 63,406 100 % United States NeuroStar Advanced Therapy System Revenues by Type Years ended December 31, 2023 2022 % of % of Amount Revenues Amount Revenues (in thousands, except percentages) NeuroStar capital $ 15,805 96 % $ 15,792 95 % Operating lease 162 1 % 222 1 % Other 493 3 % 561 3 % Total United States NeuroStar Advanced Therapy System revenues 16,460 100 % $ 16,575 100 % Revenues Total revenues increased by $6.1 million, or 9%, from $65.2 million for the year ended December 31, 2022 to $71.3 million for the year ended December 31, 2023.
Biggest changeRevenues by Product Category Years ended December 31, 2024 2023 % of % of Amount Revenues Amount Revenues (in thousands, except percentages) NeuroStar Advanced Therapy System $ 15,267 21 % $ 16,460 24 % Treatment sessions 50,832 70 % 50,896 73 % Clinic revenue 4,445 6 % — — % Other 1,944 3 % 1,980 3 % Total U.S. revenues $ 72,488 100 % $ 69,336 100 % 83 Table of Contents Revenues Total revenues increased by $3.6 million, or 5%, from $71.3 million for the year ended December 31, 2023 to $74.9 million for the year ended December 31, 2024.
Net Cash Provided by Financing Activities Net cash provided by financing activities for the year ended December 31, 2023 was $22.7 million attributable primarily to additional debt net of final payment and amendment fee paid in connection with the two amendments of the Solar Facility in 2023.
Net cash provided by financing activities for the year ended December 31, 2023 was $22.7 million attributable primarily to additional debt net of final payment and amendment fee paid in connection with the two amendments of the Solar Facility in 2023.
If our cash and cash equivalents and anticipated revenues from sales or our products are insufficient to satisfy our liquidity requirements, we may seek to sell additional common or preferred equity or debt securities or enter into a new credit facility or another form of third-party funding or seek other debt financing.
If our cash and cash equivalents and anticipated revenues from sales or our products and services are insufficient to satisfy our liquidity requirements, we may seek to sell additional common or preferred equity or debt securities or enter into a new credit facility or another form of third-party funding or seek other debt financing.
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations. The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our audited financial statements and related notes thereto and other financial information included elsewhere in this Annual Report on Form 10-K.
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations. The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our audited consolidated financial statements and related notes thereto and other financial information included elsewhere in this Annual Report on Form 10-K.
GAAP and the rules and regulations of the SEC requires us to make estimates and assumptions, based on judgments considered reasonable, which affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.
GAAP and the rules and regulations of the SEC requires us to make estimates and assumptions, based on judgments considered reasonable, which affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period.
Net cash used in investing activities for the year ended December 31, 2023 was due to payments received on our promissory notes offset partially by purchases of property and equipment and capitalized software costs.
Net cash used in investing activities for the year ended December 31, 2023 was due to payments received on our promissory notes offset partially by purchases of property and equipment and capitalized software.
Our current and future funding requirements will depend on many factors, including: ● our ability to achieve revenue growth and improve operating margins; ● compliance with the terms and conditions, including covenants, set forth in our credit facility; ● the cost of expanding our operations and offerings, including our sales and marketing efforts; ● our ability to improve or maintain coverage and reimbursement arrangements with domestic third-party and government payors, particularly in Japan; ● our rate of progress in establishing coverage and reimbursement arrangements from international commercial third-party and government payors; ● our rate of progress in, and cost of the sales and marketing activities associated with, establishing adoption of our products and maintaining or improving our sales to our current customers; 73 Table of Contents ● the cost of research and development activities, including research and development relating to additional indications of neurohealth disorders; ● the effect of competing technological and market developments; ● costs related to international expansion; and ● the potential cost of and delays in product development as a result of any regulatory oversight applicable to our products.
Our current and future funding requirements will depend on many factors, including: ● our ability to achieve revenue growth and improve operating margins; ● compliance with the terms and conditions, including covenants, set forth in our credit facility; ● the cost of expanding our operations and offerings, including our sales and marketing efforts; ● our ability to improve or maintain coverage and reimbursement arrangements with domestic third-party and government payors, particularly in Japan; ● our rate of progress in establishing coverage and reimbursement arrangements from international commercial third-party and government payors; ● our rate of progress in, and cost of the sales and marketing activities associated with, establishing adoption of our products and maintaining or improving our sales to our current customers; ● the cost of research and development activities, including research and development relating to additional indications of neurohealth disorders; ● the effect of competing technological and market developments; ● costs related to international expansion; and ● the potential cost of and delays in product development as a result of any regulatory oversight applicable to our products.
Sales in the United States represented 97% of our total revenues for the years ending December 31, 2023 and 2022, respectively, and have been generated by our direct sales force. Outside the United States, our sales are made through local third-party distributors. International revenues were 3% for the years ended December 31, 2023 and 2022, respectively.
Sales in the United States represented 97% of our total revenues for the years ending December 31, 2024 and 2023, respectively, and have been generated by our direct sales force. Outside the United States, our sales are made through local third-party distributors. International revenues were 3% for the years ended December 31, 2024 and 2023, respectively.
The increase in net operating assets was primarily due to increases in accounts receivable and prepaid commission expense, and decreases in accrued compensation. Non-cash charges consisted of depreciation and amortization, inventory impairment, non-cash interest expense, share-based compensation, and the cost of rental units purchased by customers.
The increase in net operating assets was primarily due to increases in accounts receivable and prepaid commission expense, and decreases in accrued compensation. Non-cash charges consisted of depreciation and amortization, non-cash interest expense, share-based compensation, and the cost of rental units purchased by customers.
We cannot be assured that additional equity, equity-linked or debt financing will be available on terms favorable to us or our stockholders, or at all. It is also possible that we may allocate significant amounts of capital towards products or technologies for which market demand is lower than expected and, as a result, abandon such efforts.
We cannot be assured that additional equity, equity-linked or debt financing will be available on terms favorable to us or our stockholders, or at all. It is also possible that 85 Table of Contents we may allocate significant amounts of capital towards products or technologies for which market demand is lower than expected and, as a result, abandon such efforts.
We define our critical accounting policies as those accounting policies that are most important to the portrayal of our financial condition and results of operations and require our most difficult and subjective judgments. While our significant accounting policies are more fully described in “Note 3.
We define our critical accounting policies as those accounting policies that are most important to the portrayal of our financial condition and results of operations and require our most difficult and subjective judgments. While our significant accounting policies are more fully described in Note 3.
Other revenues are derived primarily from service and repair extended warranty contracts with our existing customers. 68 Table of Contents We refer you to the section titled “Critical Accounting Policies and Use of Estimates—Revenue Recognition” appearing elsewhere in this Annual Report on Form 10-K for additional information regarding how we account for revenues.
Other Revenues . Other revenues are derived primarily from service and repair extended warranty contracts with our existing customers. We refer you to the section titled “Critical Accounting Policies and Use of Estimates—Revenue Recognition” appearing elsewhere in this Annual Report on Form 10-K for additional information regarding how we account for revenues.
Based on our commercial data, we believe psychiatrists can recoup their initial capital investment in our system by providing a standard course of treatment to approximately 12 patients. We believe psychiatrists can generate approximately $8,500 of average revenue per patient for a standard course of treatment, which may provide meaningful incremental income to their 67 Table of Contents practices.
Based on our commercial data, we believe psychiatrists can recoup their initial capital investment in our system by providing a standard course of treatment to approximately 12 patients. We believe psychiatrists can generate approximately $8,500 of average revenue per patient for a standard course of treatment, which may provide meaningful incremental income to their practices.
International revenues represented 3% of our total revenues for the years ended December 31, 2023 and 2022, respectively. In October 2017, we entered into an exclusive distribution agreement with Teijin, for the distribution of our NeuroStar Advanced Therapy Systems and treatment sessions to customers who will treat patients with MDD in Japan.
International revenues represented 3% of our total revenues for the years ended December 31, 2024 and 2023, respectively. In October 2017, we entered into an exclusive distribution agreement, for the distribution of our NeuroStar Advanced Therapy Systems and treatment sessions to customers who will treat patients with MDD in Japan.
The increase in net operating assets was primarily due to increases in accounts receivable, inventory and prepaid commission expense, which were offset by increases in accounts payable and accrued expenses as a result of timing and accrued 2022 compensation and commissions as of December 31, 2022.
The increase in net operating assets was primarily due to increases in accounts receivable, inventory and prepaid commission expense, which were offset by increases in accounts payable and accrued expenses 87 Table of Contents as a result of timing and accrued 2022 compensation and commissions as of December 31, 2022.
We expect our international revenues to be consistent as a percentage of our total revenue. Our research and development efforts are focused on the following: hardware and software product developments and enhancements of our NeuroStar Advanced Therapy System and clinical development relating to additional indications.
We expect our international revenues to decrease as a percentage of our total revenue. Our research and development efforts are focused on the following: hardware and software product developments and enhancements of our NeuroStar Advanced Therapy System and clinical development relating to additional indications.
Under ASC 606, we recognize revenue when control of the promised good or service is transferred to our customers in an amount that reflects the consideration to which we expect to be entitled in exchange for those good or services.
Under ASC 606, we recognize revenue when control of the promised good or service is transferred to our customers in an amount that reflects the consideration to which we expect to be 89 Table of Contents entitled in exchange for those good or services.
Components of Our Results of Operations Revenues To date, we have generated revenues primarily from the capital portion of our business and related sales and rentals of the NeuroStar Advanced Therapy System and the recurring revenues from our sale of treatment sessions in the United States. NeuroStar Advanced Therapy System Revenues .
Components of Our Results of Operations Revenues To date, we have generated revenues primarily from the capital portion of our business and related sales and rentals of the NeuroStar Advanced Therapy System and the recurring revenues from our sale of treatment sessions in the United States. 80 Table of Contents NeuroStar Advanced Therapy System Revenues .
Summary of Significant Accounting Policies” in our audited financial statements and related notes thereto appearing elsewhere in this Annual Report on Form 10-K, we believe the following discussion addresses our most critical accounting policies. 76 Table of Contents Revenue Recognition We account for revenue in accordance with Accounting Standards Codification (ASC) 606, Revenue from Contracts with Customers .
Summary of Significant Accounting Policies in our audited consolidated financial statements and related notes thereto appearing elsewhere in this Annual Report on Form 10-K, we believe the following discussion addresses our most critical accounting policies. Revenue Recognition We account for revenue in accordance with Accounting Standards Codification (ASC) 606, Revenue from Contracts with Customers .
Non-cash charges consisted of depreciation and amortization, non-cash interest expense, share-based compensation, and the cost of rental units purchased by customers. Net Cash (Used in) Provided by Investing Activities Net cash (used in) provided by investing activities for the years ended December 31, 2023, 2022 and 2021 was $(1.3) million, $6.7 million and $(9.8) million, respectively.
Non-cash charges consisted of depreciation and amortization, non-cash interest expense, share-based compensation, and the cost of rental units purchased by customers. Net Cash (Used in) Provided by Investing Activities Net cash (used in) provided by investing activities for the years ended December 31, 2024, 2023 and 2022 was $(2.4) million, $(1.3) million and $6.7 million, respectively.
For the year ended December 31, 2022, revenues from sales of our treatment sessions and NeuroStar Advanced Therapy Systems represented 71% and 26% of our U.S. revenues, respectively. We currently sell our NeuroStar Advanced Therapy System and recurring treatment sessions in the United States through our sales and customer support team.
For the year ended December 31, 2023, revenues from sales of our treatment sessions and NeuroStar Advanced Therapy Systems represented 73% and 24% of our U.S. revenues, respectively. We currently sell our NeuroStar Advanced Therapy System and recurring treatment sessions in the United States through our sales and customer support team.
We incurred negative cash flows from operating activities of $32.0 million and $30.7 million for the years ended December 31, 2023 and 2022, respectively.
We incurred negative cash flows from operating activities of $31.0 million and $32.0 million for the years ended December 31, 2024 and 2023, respectively.
Debt” in our audited financial statements and related notes thereto appearing elsewhere in this Annual Report on Form 10-K for information regarding our current Solar Facility. Solar Credit Facility The following table sets forth by year our required future principal payments under the term loan portion of the Solar Facility (as discussed in “Note 12.
Debt in our audited financial statements and related notes thereto appearing elsewhere in this Annual Report on Form 10-K for information regarding our current Perceptive Facility. Perceptive Credit Facility The following table sets forth by year our required future principal payments under the term loan portion of the Perceptive Facility (as discussed in Note 14.
We derive the majority of our revenues from recurring treatment sessions. For the year ended December 31, 2023, revenues from sales of our treatment sessions and NeuroStar Advanced Therapy Systems represented 73% and 24% of our U.S. revenues, respectively.
We derive the majority of our revenues from recurring treatment sessions. For the year ended December 31, 2024, revenues from sales of our treatment sessions and NeuroStar Advanced Therapy Systems represented 70% and 21% of our U.S. revenues, respectively.
Comparison of the Years ended December 31, 2022 and 2021 The information required within this section is incorporated by reference to the information set forth in the section titled “Comparison of the Years ended December 31, 2022 and 2021” in “Management’s Discussion 72 Table of Contents and Analysis of our Financial Condition and Results of Operations” in our 2022 Annual Report on Form 10-K filed on March 7, 2023. Liquidity and Capital Resources Overview As of December 31, 2023, we had cash and cash equivalents of $59.7 million and an accumulated deficit of $376.1 million, compared to cash and cash equivalents of $70.3 million and an accumulated deficit of $345.9 million as of December 31, 2022.
Comparison of the Years ended December 31, 2023 and 2022 The information required within this section is incorporated by reference to the information set forth in the section titled “Comparison of the Years ended December 31, 2023 and 2022” in “Management’s Discussion and Analysis of our Financial Condition and Results of Operations” in our 2023 Annual Report on Form 10-K filed on March 8, 2024. Liquidity and Capital Resources Overview As of December 31, 2024, we had cash and cash equivalents of $18.5 million and an accumulated deficit of $419.8 million, compared to cash and cash equivalents of $59.7 million and an accumulated deficit of $376.1 million as of December 31, 2023.
You should review the ‘‘Risk Factors’’ section of this Annual Report on Form 10-K for a discussion of important factors that could cause our actual results to differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis.
You should review the Risk Factors section of this Annual Report on Form 10-K for a discussion of important factors that could cause our actual results to differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis. Overview We believe that mental health is as important as physical health.
Our total revenues increased by $6.1 million, or 9%, from $65.2 million for the year ended December 31, 2022 to $71.3 million for the year ended December 31, 2023.
Our total revenues increased by $3.6 million, or 5%, from $71.3 million for the year ended December 31, 2023 to $74.9 million for the year ended December 31, 2023.
Net cash provided by financing activities for the year ended December 31, 2022 was $0.2 million attributable primarily to proceeds related to stock option exercises.
Net cash provided by financing activities for the year ended December 31, 2022 was $0.2 million attributable primarily to proceeds related to stock option exercises. 88 Table of Contents Indebtedness Refer to Note 14.
We have a diverse customer base of psychiatrists in group psychiatric practices in the United States. For the years ended December 31, 2023, 2022 and 2021 one customer accounted for 15%, 17% and 20% respectively, of the Company’s revenue.
We have a diverse customer base of psychiatrists in group psychiatric practices in the United States. For the years ended December 31, 2024, 2023 and 2022 one customer Greenbrook accounted for 12%,15% and 17% respectively, of the Company’s revenue. Following the acquisition, Greenbrook is no longer a customer.
Revenues in the United States increased by $5.9 million, or 9%, from $63.4 million for the year ended December 31, 2022 to $69.3 million for the year ended December 31, 2023.
Revenues in the United States increased by $3.2 million, or 5%, from $69.3 million for the year ended December 31, 2023 to $72.5 million for the year ended December 31, 2024.
General and administrative expenses also include the cost of insurance, outside legal fees, accounting and other consulting services, audit fees from our independent registered public accounting firm, board of directors’ fees and other administrative costs, such as corporate facility costs, including rent, utilities, depreciation and maintenance not otherwise included in cost of revenues. 69 Table of Contents We anticipate that our general and administrative expenses will remain relatively consistent during 2024 compared to our 2023 expenses.
General and administrative expenses also include the cost of insurance, outside legal fees, accounting and other consulting services, audit fees from our independent registered public accounting firm, board of directors’ fees and other administrative costs, such as corporate facility costs, including rent, utilities, depreciation and maintenance not otherwise included in cost of revenues.
For the year ended December 31, 2023, our U.S. revenues were $69.3 million, compared to $63.4 million for the year ended December 31, 2022, which represented an increase of 9% period over period. As of December 31, 2023, we had an accumulated deficit of $376.1 million.
For the year ended December 31, 2024, our U.S. revenues were $72.5 million, compared to $69.3 million for the year ended December 31, 2023, which represented an increase of 5% period over period. As of December 31, 2024, we had an accumulated deficit of $419.8 million.
Our gross margin has been and will continue to be affected by a variety of factors, primarily product sales mix, pricing and third-party contract manufacturing costs.
Our gross profit is calculated by subtracting our cost of revenues from our revenues. We calculate our gross margin as our gross profit divided by our revenues. Our gross margin has been and will continue to be affected by a variety of factors, primarily product sales mix, pricing and third-party contract manufacturing costs.
Our primary sources of capital to date have been from our IPO, private placements of our convertible preferred securities, borrowings under our credit facility, sales of our products and a secondary public offering of our common stock.
Our primary sources of capital to date have been from our IPO, private placements of our convertible preferred securities, borrowings under our credit facility, sales of our products and a secondary public offering of our common stock. The Company entered into a Credit Agreement and Guaranty with Perceptive as collateral agent and other lenders defined in the Perceptive Facility.
As a result, we expect our research and development expenses to increase during 2024 compared to our 2023 expenses. Interest Expense Interest expense consists of cash interest payable under our credit facility and non-cash interest attributable to the accrual of final payment fees and the amortization of deferred financing costs related to our indebtedness.
Interest Expense Interest expense consists of cash interest payable under our credit facility and non-cash interest attributable to the accrual of final payment fees and the amortization of deferred financing costs related to our indebtedness.
Cost of Revenues and Gross Margin Cost of revenues increased by $4.2 million, or 27%, from $15.5 million for the year ended December 31, 2022 to $19.6 million for the year ended December 31, 2023.
Cost of Revenues and Gross Margin Cost of revenues increased by $1.1 million, or 6%, from $19.6 million for the year ended December 31, 2023 to $20.7 million for the year ended December 31, 2024. Gross margin was 72.3% for the year ended December 31, 2024 compared to 72.5% for the year ended December 31, 2023.
Debt”) (in thousands): Principal Year: Payments 2024 $ — 2025 — 2026 22,500 2027 30,000 2028 7,500 Total principal payments $ 60,000 Common Stock Offering On February 2, 2021, we closed a secondary public offering of our common stock in which we issued and sold 5,566,000 shares of our common stock, which included shares pursuant to an option granted to underwriters to purchase additional shares, at a public offering price of $15.50 per share.
Debt) (in thousands): Principal Year: Payments 2025 $ — 2026 — 2027 — 2028 — 2029 60,000 Total principal payments $ 60,000 Common Stock Offering On February 10, 2025, the Company closed on a secondary public offering of its common stock in which the Company issued and sold 9,200,000 shares of its common stock, which included shares pursuant to an option granted to the underwriter to purchase additional shares, at a public offering price of $2.25 per share.
We typically use our employee, consultant and infrastructure resources across our research and development programs.
We typically use our employee, consultant and infrastructure resources across our research and development programs. We expect our research and development expenses to decrease during 2025 compared to our 2024 expenses.
Access codes are purchased separately by our customers, primarily on an as-needed basis, and are required by the NeuroStar Advanced Therapy System in order to deliver treatment sessions. Other Revenues .
Access codes are purchased separately by our customers, primarily on an as-needed basis, and are required by the NeuroStar Advanced Therapy System in order to deliver treatment sessions. Clinic Revenue. Clinic revenue is determined based on net patient fees, which includes estimates for contractual allowances and discounts.
Other Income, Net Other income, net increased by $3.5 million from $2.2 million for the year ended December 31, 2022 to $5.8 million for the year ended December 31, 2023, primarily as a result of the Employee Retention Credit (the “ERC”) of $2.9 million, increased interest income earned on the Company’s money market accounts and increase in notes receivable interest .
Other Income, Net Other income, net decreased by $3.2 million from $5.8 million for the year ended December 31, 2023 to $2.5 million for the year ended December 31, 2024, primarily as a result of the Employee Retention Credit (the “ERC”) of $2.9 million recorded during the year ended December 31, 2023.
Cash Flows The following table sets forth a summary of our cash flows for the years ended December 31, 2023, 2022, and 2021: December 31, 2023 2022 2021 Net Cash Used in Operating Activities $ (32,038) $ (30,739) $ (27,983) Net Cash (Used in) Provided by Investing Activities (1,322) 6,731 (9,839) Net Cash Provided by Financing Activities 22,697 207 83,006 Net (Decrease) in Cash and Cash Equivalents $ (10,663) $ (23,801) $ 45,184 74 Table of Contents Net Cash Used in Operating Activities Net cash used in operating activities for 2023 was $32.0 million, consisting primarily of a net loss of $30.2 million and an increase in net operating assets of $ 14 .1 million, partially offset by non-cash charges of $12.3 million.
Cash Flows The following table sets forth a summary of our cash flows for the years ended December 31, 2024, 2023, and 2022: December 31, 2024 2023 2022 Net Cash used in Operating activities $ (30,997) $ (32,038) $ (30,739) Net Cash (used in) provided by Investing activities (2,413) (1,322) 6,731 Net Cash (used in) provided by Financing activities (6,808) 22,697 207 Net (Decrease) in Cash and Cash Equivalents and Restricted cash $ (40,218) $ (10,663) $ (23,801) Net Cash Used in Operating Activities Net cash used in operating activities for 2024 was $31.0 million, consisting primarily of a net loss of $43.7 million and an increase in net operating assets of $6.8 million, partially offset by non-cash charges of $19.5 million, primarily consisting of depreciation and amortization, capitalized software impairment, allowance for credit losses, share-based compensation, non-cash interest expense and loss on extinguishment of debt.
Sales and marketing Expenses Sales and marketing expenses consist of market research and commercial activities related to the sale of our NeuroStar Advanced Therapy Systems and treatment sessions and salaries and related benefits, sales commissions and share-based compensation for employees focused on these efforts.
Our gross margins on revenues from sales of NeuroStar Advanced Therapy Systems and clinic revenue are lower than our gross margins on revenues from sales of treatment sessions and, as a result, the 81 Table of Contents sales mix between NeuroStar Advanced Therapy Systems, clinic revenues and treatment sessions can affect the gross margin in any reporting period. Sales and Marketing Expenses Sales and marketing expenses consist of market research and commercial activities related to the sale of our NeuroStar Advanced Therapy Systems and treatment sessions and salaries and related benefits, sales commissions and share-based compensation for employees focused on these efforts.
Other significant sales and marketing costs include conferences and trade shows, promotional and marketing activities, including direct and online marketing, practice support programs, primarily digital media campaigns, travel and training expenses.
Other significant sales and marketing costs include conferences and trade shows, promotional and marketing activities, including direct and online marketing, practice support programs, primarily digital media campaigns, travel and training expenses. We anticipate that our sales and marketing expenses will increase in 2025 relative to 2024 as a result of the addition of the Greenbrook sales personnel to our company.
Net cash used in investing activities for the year ended December 31, 2021 was attributable to issuance of our promissory note and purchase of property and equipment and capitalized software costs.
Net cash used in investing activities for the year ended December 31, 2024 was due to cash paid for acquisition, net of cash and restricted cash acquired, purchases of property and equipment and capitalized software costs partially offset by payment received on our promissory notes.
The increase in net operating assets was primarily due to increases in accounts receivable, inventory and prepaid commission expense, which were offset by increases in accounts payable and accrued expenses as a result of timing and accrued 2021 compensation and commissions as of December 31, 2021.
The increase in net operating assets was primarily due to increases in accounts receivable, prepaid expenses and other assets, prepaid commission expense and decreases in accounts payable and accrued expenses.
NeuroStar capital sales consisted of 204 units in NeuroStar Advanced Therapy Systems for the year ended December 31, 2023 compared to 213 units for the year ended December 31, 2022. The Company expects to recognize future recurring treatment session revenue related to the sale of 204 NeuroStar Advanced Therapy systems for the year ended December 31, 2023.
The Company expects to recognize future recurring treatment session revenue related to the sale of 185 NeuroStar Advanced Therapy Systems for the year ended December 31, 2024. Treatment sessions revenues represented 70% and 73% of total revenues in the United States for the years ended December 31, 2024 and 2023, respectively.
NeuroStar Advanced Therapy System revenue in the United States for year ended December 31, 2023 was $16.5 million which was in line with revenue at December 31, 2022 at $16.6 million.
NeuroStar Advanced Therapy System revenue in the United States for the year ended December 31, 2024 decreased $1.2 million or 7% from $16.5 million for the year ended December 31, 2023 to $15.3 million for the year ended December 31, 2024.
Sales and marketing Expenses Sales and marketing expenses decreased by $2.7 million, or 5%, from $50.0 million for the year ended December 31, 2022 to $47.3 million for the year ended December 31, 2023. The decrease was primarily driven by the discontinuation of a sales compensation program in 2023.
The decrease in gross margin was primarily a result of the inclusion of Greenbrook’s clinic business and reduction in Treatment session revenue. Sales and marketing Expenses Sales and marketing expenses decreased by $1.7 million, or 4%, from $47.3 million for the year ended December 31, 2023 to $45.6 million for the year ended December 31, 2024.
We designed the NeuroStar Advanced Therapy System as a non-invasive therapeutic alternative to treat patients who suffer from MDD and to address many of the key limitations of existing treatment options. We generate revenues from initial capital sales of our systems, sales of our recurring treatment sessions and from service and repair and extended warranty contracts.
The Company continues to operate as Neuronetics, Inc., and the Neuronetics Shares continues to trade on the NASDAQ Global Market under the ticker “STIM”. We designed the NeuroStar Advanced Therapy System as a non-invasive therapeutic alternative to treat patients who suffer from MDD and to address many of the key limitations of existing treatment options.
Results of Operations Comparison of the Years ended December 31, 2023 and 2022 Years ended December 31, Increase / (Decrease) 2023 2022 Dollars Percentage (in thousands, except percentages) Revenues $ 71,348 $ 65,206 $ 6,142 9 % Cost of revenues 19,643 15,483 4,160 27 % Gross Profit 51,705 49,723 1,982 4 % Gross Margin 72.5 % 76.3 % Operating expenses: Sales and marketing 47,318 49,982 (2,664) (5) % General and administrative 25,426 25,516 (90) (0) % Research and development 9,515 9,336 179 2 % Total operating expenses 82,259 84,834 (2,575) (3) % Loss from Operations (30,554) (35,111) 4,557 13 % Other (income) expense: Interest expense 5,424 4,251 1,173 28 % Other income, net (5,789) (2,203) (3,586) (163) % Net Loss $ (30,189) $ (37,159) $ 6,970 19 % 70 Table of Contents Revenues by Geography Years ended December 31, 2023 2022 % of % of Amount Revenues Amount Revenues (in thousands, except percentages) United States $ 69,336 97 % $ 63,406 97 % International 2,012 3 % 1,800 3 % Total revenues $ 71,348 100 % $ 65,206 100 % U.S.
Results of Operations Comparison of the Years ended December 31, 2024 and 2023 Years ended December 31, Increase / (Decrease) 2024 2023 Dollars Percentage (in thousands, except percentages) Revenues $ 74,890 $ 71,348 $ 3,542 5 % Cost of revenues 20,729 19,643 1,086 6 % Gross Profit 54,161 51,705 2,456 5 % Gross Margin 72.3 % 72.5 % Operating expenses: Sales and marketing 45,631 47,318 (1,687) (4) % General and administrative 30,322 25,426 4,896 19 % Research and development 12,771 9,515 3,256 34 % Total operating expenses 88,724 82,259 6,465 8 % Loss from Operations (34,563) (30,554) (4,009) (13) % Other (income) expense: Interest expense 7,286 5,424 1,862 34 % Loss on extinguishment of debt 4,427 — 4,427 — % Other income, net (2,549) (5,789) 3,240 56 % Net Loss $ (43,727) $ (30,189) $ (13,538) (45) % Revenues by Geography Years ended December 31, 2024 2023 % of % of Amount Revenues Amount Revenues (in thousands, except percentages) United States $ 72,488 97 % $ 69,336 97 % International 2,402 3 % 2,012 3 % Total revenues $ 74,890 100 % $ 71,348 100 % U.S.
Critical Accounting Policies and Use of Estimates The preparation of our financial statements in accordance with U.S.
We received net proceeds of approximately $18.9 million after deducting underwriting discounts, commissions and estimated offering expenses. Critical Accounting Policies and Use of Estimates The preparation of our consolidated financial statements in accordance with U.S.
Non-cash charges consisted of depreciation and amortization, non-cash interest expense, share-based compensation, and the cost of rental units purchased by customers. Net cash used in operating activities for 2021 was $28.0 million, consisting primarily of a net loss of $31.2 million and an increase in net operating assets of $6.6 million, partially offset by non-cash charges of $9.8 million.
Net cash used in operating activities for 2023 was $32.0 million, consisting primarily of a net loss of $30.2 million and an increase in net operating assets of $14.1 million, partially offset by non-cash charges of $12.3 million.
Research and Development Expenses Research and development expenses remained relatively consistent at $9.5 million for the year ended December 31, 2023 compared with $9.3 million for the year ended December 31, 2022 Interest Expense Interest expense increased by $1.2 million, or 28%, from $4.2 million for the year ended December 31, 2022 to $5.4 million for the year ended December 31, 2023 due to interest rates and debt balance increases.
This increase was partially offset by savings related to project spend and personnel. 84 Table of Contents Interest Expense Interest expense increased by $1.9 million, or 34%, from $5.4 million for the year ended December 31, 2023 to $7.3 million for the year ended December 31, 2024 due to interest rates and debt balance increases.
We also earn revenue from customers from services outside of their warranty term or annual service contracts. Such service revenue is recognized as the services are provided. Recent Accounting Pronouncements We refer you to “Note 4. Recent Accounting Pronouncements” in our audited financial statements and related notes thereto included elsewhere in this Annual Report on Form 10-K.
Any impairment recognized could significantly impact our results of operations in the period of impairment. 91 Table of Contents Recent Accounting Pronouncements We refer you to Note 4. Recent Accounting Pronouncements in our audited consolidated financial statements and related notes thereto included elsewhere in this Annual Report on Form 10-K.
The system is cleared by the FDA to treat adult patients with MDD that have failed to achieve satisfactory improvement from prior antidepressant medication in the current MDD episode. NeuroStar Advanced Therapy System is safe, clinically effective, reproducible and precise and we believe is supported by the largest clinical data set of any competing TMS system.
The system is cleared by the FDA to treat adult patients with MDD that have failed to achieve satisfactory improvement from prior antidepressant medication in the current MDD episode. It is also cleared by the FDA, as an adjunct for adults with OCD and for adolescent patients aged 15-21 with MDD.
We believe we are the market leader in TMS therapy based on the estimated 169,068 global patients treated with over 6.1 million of our treatment sessions through December 31, 2023. We generated revenues of $71.3 million and $65.2 million for the years ended December 31, 2023 and 2022, respectively.
NeuroStar Advanced Therapy System is safe, clinically effective, reproducible and precise and we believe is supported by the largest clinical data set of any competing TMS system. We believe we are the market leader in TMS therapy based on the estimated 195,356 global patients treated with over 7.1 million of our treatment sessions through December 31, 2024.
Other Income, Net Other income, net consists primarily of interest income earned on our money market account balances and notes receivable.
Loss on extinguishment of debt Loss on debt extinguishment consists of prepayment penalties and impairment of deferred financing costs associated with the extinguishment of debt, as well as fees incurred with third parties in connection with debt extinguishment. 82 Table of Contents Other Income, Net Other income, net consists primarily of interest income earned on our money market account balances and notes receivable.
Leases The Company has lease arrangements for equipment and certain facilities, including corporate headquarters and our warehouse in Malvern, Pennsylvania and a training facility in Charlotte, North Carolina. As of December 31, 2023, the Company had fixed lease payment obligations of $3.7 million, including $0.9 million due within the next twelve months.
The interest rate on borrowings under the Perceptive Facility is the monthly SOFR rate plus 7%. Leases The Company has lease arrangements for equipment and certain facilities, including corporate headquarters and our warehouse in Malvern, Pennsylvania and a training facility in Charlotte, North Carolina. Additionally following the acquisition of Greenbrook, the Company has lease agreements related to its Treatment Centers.
For the period ended December 31, 2023, U.S. revenue increased by 9% and international revenue increased by 12% over the comparative prior year period. The U.S. revenue growth was primarily due to an increase in Treatment sessions revenues in connection with the growth of active customer sites and utilization.
For the period ended December 31, 2024, U.S. revenue increased by 5% and international revenue increased by 19% over the comparative prior year period.
The Company’s material cash requirements include the following contractual and other obligations. Debt In March 2020, the Company entered into the Solar Facility. As of December 31, 2023, the Company had $60.0 million of borrowings outstanding under the Solar Facility, which has a final maturity in March 2028.
The Company’s material cash requirements include the following contractual and other obligations. Debt On March 2, 2020 the Company entered into a Loan and Security Agreement with Solar as collateral agent and other lenders as defined in the Solar Facility. On March 7, 2024, the Company entered into a sixth amendment (the “Solar Sixth Amendment”) to the Solar Facility.
We expect our cost of revenues to decrease as our product mix changes and we realize efficiencies with our new contract manufacturer. Our gross profit is calculated by subtracting our cost of revenues from our revenues. We calculate our gross margin as our gross profit divided by our revenues.
Our new Treatment Center costs include direct center and patient care costs, regional employee compensation, regional marketing expenses, and depreciation. We expect our cost of revenues to increase mainly for Treatment Centers, as our product mix changes. We expect to realize efficiencies with our new contract manufacturer.
Treatment sessions revenues represented 73% and 71% of total revenues in the United States for the years ended December 31, 2023 and 2022, respectively, and increased by 13% from $45.1 million for the year ended December 31, 2022 to $50.9 million for the year ended December 31, 2023.
Treatment session revenue in United States for year ended December 31, 2024 was $50.8 million which was materially consistent with revenue for the year ended December 31, 2023 of $50.9 million.
Net cash provided by financing activities for the year ended December 31, 2021 was $83.0 million and primarily consisted of additional proceeds from our secondary public offering and sale of our common stock on February 2, 2021 and cash proceeds related to stock option exercises. 75 Table of Contents Indebtedness Refer to “Note 12.
Net Cash (Used in) Provided by Financing Activities Net cash used in financing activities for the year ended December 31, 2024 was $6.8 million and primarily consisted of the repayment of the Solar Facility, proceeds from the Perceptive Facility issuance of long-term debt and warrants and payment of debt issuance costs related to the Perceptive Facility.