Biggest changeWe maintain a full valuation allowance on our domestic deferred tax assets as we have concluded that it is more likely than not that the deferred assets will not be realized. 96 Table of Contents Results of Operations Comparisons of the Years Ended December 31, 2024 and 2023 The following table summarizes our results of operations for the periods presented: Year ended December 31, Change 2024 2023 Amount % (dollars in thousands) Revenue: Product $ 8,695 $ 8,506 $ 189 2 % Service 2,960 2,016 944 47 % Related party 2,292 4,660 (2,368 ) (51 )% Grant and other 223 1,479 (1,256 ) (85 )% Total revenue 14,170 16,661 (2,491 ) (15 )% Cost of revenue: Product 4,402 5,398 (996 ) (18 )% Service 1,465 685 780 114 % Related party 712 1,430 (718 ) (50 )% Grant and other 536 642 (106 ) (17 )% Total cost of revenue 7,115 8,155 (1,040 ) (13 )% Gross profit 7,055 8,506 (1,451 ) (17 )% Operating expenses: Research and development 50,585 53,019 (2,434 ) (5 )% Selling, general and administrative 56,571 58,950 (2,379 ) (4 )% Total operating expenses 107,156 111,969 (4,813 ) (4 )% Loss from operations (100,101 ) (103,463 ) 3,362 (3 )% Other income (expense): Interest income 16,666 17,764 (1,098 ) (6 )% Loss on equity method investment (2,649 ) — (2,649 ) 100 % Other expense (417 ) (578 ) 161 (28 )% Total other income 13,600 17,186 (3,586 ) (21 )% Loss before provision for income taxes (86,501 ) (86,277 ) (224 ) 0 % Provision for income taxes 98 — 98 100 % Net loss $ (86,599 ) $ (86,277 ) $ (322 ) 0 % Revenue Year ended December 31, Change 2024 2023 Amount % (dollars in thousands) Revenue $ 14,170 $ 16,661 $ (2,491 ) (15 )% Revenue in fiscal year 2024 decreased by $2.5 million, or 15% as compared to the prior year.
Biggest changeWe maintain a full valuation allowance on our domestic deferred tax assets as we have concluded that it is more likely than not that the deferred assets will not be realized. 91 Table of Contents Results of Operations The following table summarizes our results of operations for the periods presented: Year ended December 31, Change 2025 2024 Amount % (dollars in thousands) Revenue: Product $ 11,207 $ 8,695 $ 2,512 29 % Service 4,151 2,960 1,191 40 % Related party 761 2,292 (1,531 ) (67 )% Other 459 223 236 106 % Total revenue 16,578 14,170 2,408 17 % Cost of revenue: Product 5,336 4,402 934 21 % Service 1,531 1,465 66 5 % Related party 224 712 (488 ) (69 )% Other 1,022 536 486 91 % Total cost of revenue 8,113 7,115 998 14 % Gross profit 8,465 7,055 1,410 20 % Operating expenses: Research and development 43,874 50,585 (6,711 ) (13 )% Selling, general and administrative 42,583 56,571 (13,988 ) (25 )% Total operating expenses 86,457 107,156 (20,699 ) (19 )% Loss from operations (77,992 ) (100,101 ) 22,109 (22 )% Other income (expense): Interest income 11,522 16,666 (5,144 ) (31 )% Loss on equity method investment (5,919 ) (2,649 ) (3,270 ) 123 % Other expense (1,010 ) (417 ) (593 ) 142 % Total other income 4,593 13,600 (9,007 ) (66 )% Loss before provision for income taxes (73,399 ) (86,501 ) 13,102 (15 )% Provision for income taxes 201 98 103 105 % Net loss $ (73,600 ) $ (86,599 ) $ 12,999 (15 )% Revenue Year ended December 31, Change 2025 2024 Amount % (dollars in thousands) Revenue $ 16,578 $ 14,170 $ 2,408 17 % Revenue in fiscal year 2025 increased by $2.4 million, or 17% as compared to the prior year.
Investing Activities In 2024, cash provided by investing activities was $65.9 million, which was attributable to the proceeds from maturities of available-for-sale securities of $342.0 million and proceeds from disposal of property and equipment of $0.3 million.
In 2024, cash provided by investing activities was $65.9 million, which was attributable to the proceeds from maturities of available-for-sale securities of $342.0 million and proceeds from disposal of property and equipment of $0.3 million.
Our future capital requirements will depend on many factors including our revenue growth rate, investments in continued commercialization efforts, acquisitions of complementary or enhancing technologies or businesses, including intellectual property rights, the timing and extent of additional capital expenditures to invest in existing and new facilities, the expansion of sales and marketing and international activities and the extent and magnitude of our ongoing research and development programs.
Our future capital requirements will depend on many factors including our revenue growth rate, investments in continued commercialization efforts, acquisitions of complementary or enhancing technologies or businesses, including intellectual property rights, the timing and extent of additional capital expenditures to invest in existing and new facilities and equipment, the expansion of sales and marketing and international activities and the extent and magnitude of our ongoing research and development programs.
Financing Activities In 2024, cash used in financing activities was $11.5 million, which was primarily attributable to the repurchases of Class A common stock under our share repurchase program of $11.8 million. This partially was offset by the proceeds of $0.3 million from the issuance of Class A common stock in connection with our employee stock purchase plan.
This partially was offset by the proceeds of $0.4 million from the issuance of Class A common stock in connection with the employee stock purchase plan. In 2024, cash used in financing activities was $11.5 million, which was primarily attributable to the repurchases of Class A common stock under our share repurchase program of $11.8 million.
Stock-Based Compensation Stock-based compensation expense relates to stock options with service-based vesting conditions, stock options with market-based vesting conditions, stock purchase rights under our employee stock purchase plan (ESPP), restricted common stock awards (RSAs) and restricted stock units (RSUs). All awards are measured at fair value on grant date and forfeitures are recognized as they occur.
Stock-Based Compensation Stock-based compensation expense relates to stock options with service-based vesting conditions, stock options with market-based vesting conditions, stock purchase rights under our employee stock purchase plan (ESPP), and restricted stock units (RSUs). All awards are measured at fair value on grant date and forfeitures are recognized as they occur.
We maintain a letter of credit issued to the lessor in the amount of $0.5 million as of each of December 31, 2024 and 2023, which is secured by restricted cash and is presented as noncurrent at each date based on the term of the underlying lease.
We maintain a letter of credit issued to the lessor in the amount of $0.5 million as of each of December 31, 2025 and 2024, which is secured by restricted cash and is presented as noncurrent at each date based on the term of the underlying lease.
Our expenses may increase in connection with our ongoing activities, as we: • broadly commercialize the Proteograph Product Suite; • attract, hire and retain qualified personnel; • continue to build our sales, marketing, service, support and distribution infrastructure as part of our commercialization efforts; • build-out and expand our in-house NP manufacturing capabilities; • continue to engage in research and development of other products and enhancements to the Proteograph Product Suite; • implement operational, financial and management information systems; • obtain, maintain, expand, and protect our intellectual property portfolio; and • build the infrastructure to operate and scale as a public company. 95 Table of Contents Components of Results of Operations Revenue Our product revenue consists of an instrument with embedded software essential to the instrument’s functionality and consumables.
Our expenses may increase in connection with our ongoing activities, as we: • broadly market and sell the Proteograph Product Suite; • attract, hire and retain qualified personnel; • continue to build our sales, marketing, service, support and distribution infrastructure as part of our commercialization efforts; • build-out and expand our in-house NP manufacturing capabilities; • continue to engage in research and development of other products and enhancements to the Proteograph Product Suite; • implement operational, financial and management information systems; • obtain, maintain, expand, and protect our intellectual property portfolio; and • build the infrastructure to operate and scale as a public company. 90 Table of Contents Components of Results of Operations Revenue Our product revenue consists of an instrument with embedded software essential to the instrument’s functionality and consumables.
If the product or service has no history of sales or if the sales volume is not sufficient, we rely upon prices set by management, adjusted for applicable discounts. 101 Table of Contents A portion of our revenue relates to lease arrangements.
If the product or service has no history of sales or if the sales volume is not sufficient, we rely upon prices set by management, adjusted for applicable discounts. A portion of our revenue relates to lease arrangements.
We intend to focus our commercial efforts in the United States and expect to grow our international presence. Cost of Revenue We utilize third-party manufacturers for production of our SP100 instrument and we manufacture our NPs and assemble our assay kits internally.
We intend to focus our commercial efforts in the United States and expect to grow our international presence. Cost of Revenue We utilize third-party manufacturers for production of our instruments and we manufacture our NPs and assemble our assay kits internally.
Cost of revenue consists primarily of costs of the components of the Proteograph Product Suite, including the SP100 instrument and consumables, cost of services related to the generation and analysis of proteomic data on behalf of our customers, and distribution-related expenses such as logistics and shipping costs.
Cost of revenue consists primarily of costs of the components of the Proteograph Product Suite, including the instruments and consumables, costs of services related to the generation and analysis of proteomic data on behalf of our customers, and distribution-related expenses such as logistics and shipping costs.
Payments associated with these agreements are not included in this discussion of contractual obligations. 98 Table of Contents Our operating lease obligations reflect our lease obligations for our office and laboratory space in Redwood City, California and office space in San Diego, California.
Payments associated with these agreements are not included in this discussion of contractual obligations. 93 Table of Contents Our operating lease obligations reflect our lease obligations for our office and laboratory space in Redwood City, California.
Our service revenue primarily consists of revenue received from the generation and analysis of proteomic data on behalf of customers. Our related party revenue is comprised of both product sales and services performed for related parties. Our grant and other revenue consists of research-related grants, lease arrangements, and shipping revenue. Our revenue is primarily generated domestically.
Our service revenue primarily consists of revenue received from the generation and analysis of proteomic data on behalf of the customer. Our related party revenue is comprised of both product sales and services performed for related parties. Other revenue consists of shipping revenue and lease arrangements. Our revenue is primarily generated domestically.
Product revenue consists of sales of an instrument with embedded software essential to the instrument’s functionality and consumables. Service revenue primarily consists of revenue received from the generation and analysis of proteomic data on behalf of our customers.
Revenue Recognition Our revenue is generated primarily from sales of products and services. Product revenue consists of sales of an instrument with embedded software essential to the instrument’s functionality and consumables. Service revenue primarily consists of revenue received from the generation and analysis of proteomic data on behalf of our customers.
In determining whether a transaction should be classified as a sales-type or operating lease, the Company considered the following criteria at lease commencement: (1) whether title of the instrument transfers automatically or for a nominal fee by the end of the lease term, (2) whether the present value of the minimum lease payments equals or exceeds substantially all of the fair value of the leased instrument, (3) whether the lease term is for the major part of the remaining economic life of the leased instrument, (4) whether the lease grants the lessee an option to purchase the leased instrument that the lessee is reasonably certain to exercise, and (5) whether the underlying instrument is of such a specialized nature that it is expected to have no alternative use to the Company at the end of the lease term.
If a standalone price is not available for a component, it is estimated using the best information available. 96 Table of Contents In determining whether a transaction should be classified as a sales-type or operating lease, the Company considered the following criteria at lease commencement: (1) whether title of the instrument transfers automatically or for a nominal fee by the end of the lease term, (2) whether the present value of the minimum lease payments equals or exceeds substantially all of the fair value of the leased instrument, (3) whether the lease term is for the major part of the remaining economic life of the leased instrument, (4) whether the lease grants the lessee an option to purchase the leased instrument that the lessee is reasonably certain to exercise, and (5) whether the underlying instrument is of such a specialized nature that it is expected to have no alternative use to the Company at the end of the lease term.
We expect to continue to incur significant losses and do not expect positive cash flows from operations for the foreseeable future.
We anticipate that we will continue to incur net losses and do not expect positive cash flows from operations for the foreseeable future.
The change in our net operating assets and liabilities was primarily due to an increase in inventory levels of $1.9 million for anticipated revenue growth and a $1.3 million increase in prepaid expenses and other current assets, which was partially offset by a decrease in accounts receivable of $0.3 million.
The change in our net operating assets and liabilities was primarily due to an increase in inventory levels of $2.7 million, a decrease in accrued liabilities and other liabilities of $1.4 million, and an increase of $0.1 million in prepaid expenses and other assets, which was partially offset by an increase in accounts payable of $3.4 million, a decrease in accounts receivable of $0.5 million, and an increase in deferred revenue of $0.2 million.
Our commercial strategy is focused on growing adoption by the research community of the Proteograph, expanding the installed base, increasing utilization to generate revenue from the purchase of Proteograph consumables and growing our service offering through the STAC.
Our commercial strategy is focused on growing adoption of the Proteograph by researchers in academic and commercial settings, expanding the installed base, increasing utilization to generate revenue from the purchase of Proteograph consumables and growing our service offering through the Seer Technology Access Center (STAC).
The change in our net operating assets and liabilities was primarily due to an increase in inventory levels of $2.7 million, a decrease in accrued liabilities and other liabilities of $1.4 million, and an increase of $0.1 million in prepaid expenses and other assets, which was partially offset by an increase in accounts payable of $3.4 million, a decrease in accounts receivable of $0.5 million, and an increase in deferred revenue of $0.2 million. 99 Table of Contents In 2023, cash used in operating activities was $59.1 million, attributable to a net loss of $86.3 million, partially offset by a net change in our net operating assets and liabilities of $2.7 million and non-cash charges of $29.9 million.
The change in our net operating assets and liabilities was primarily due to an increase in inventory levels of $2.9 million, a decrease of $1.6 million in prepaid expenses and other assets, which was partially offset by an increase in accounts payable of $1.1 million. 94 Table of Contents In 2024, cash used in operating activities was $46.1 million, attributable to a net loss of $86.6 million and a net change in our net operating assets and liabilities of $0.1 million, partially offset by non-cash charges of $40.6 million.
The decrease was primarily due to a $5.1 million decrease in stock-based compensation and a $2.3 million decrease in employee compensation costs. The decrease was offset by a $4.2 million increase in professional services and a $0.9 million increase in facility expenses.
The decrease was primarily due to a $9.2 million decrease in stock-based compensation, a $2.0 million decrease in professional services, a $0.9 million decrease in allocated costs, a $0.8 million decrease in business expenses, a $0.3 million decrease in facility expenses, a $0.3 million decrease in travel expenses, and a $0.2 million decrease in employee compensation costs.
Cash Flows The following table summarizes our cash flows for the periods indicated: Year ended December 31, 2024 2023 (in thousands) Net cash used in operating activities $ (46,109 ) $ (59,065 ) Net cash provided by investing activities 65,858 37,904 Net cash (used in) provided by financing activities (11,495 ) 452 Net increase (decrease) in cash, cash equivalents and restricted cash $ 8,254 $ (20,709 ) Operating Activities In 2024, cash used in operating activities was $46.1 million, attributable to a net loss of $86.6 million and a net change in our net operating assets and liabilities of $0.1 million, partially offset by non-cash charges of $40.6 million.
Cash Flows The following table summarizes our cash flows for the periods indicated: Year ended December 31, 2025 2024 (in thousands) Net cash used in operating activities $ (44,448 ) $ (46,109 ) Net cash provided by investing activities 61,548 65,858 Net cash used in financing activities (10,568 ) (11,495 ) Net increase in cash, cash equivalents and restricted cash $ 6,532 $ 8,254 Operating Activities In 2025, cash used in operating activities was $44.4 million, attributable to a net loss of $73.6 million and a net change in our net operating assets and liabilities of $0.6 million, partially offset by non-cash charges of $29.7 million.
Selling, General and Administrative Year ended December 31, Change 2024 2023 Amount % (dollars in thousands) Selling, general and administrative $ 56,571 $ 58,950 $ (2,379 ) (4 )% Selling, general and administrative expenses in fiscal year 2024 decreased by $2.4 million, or 4% as compared to the prior year.
Selling, General and Administrative Year ended December 31, Change 2025 2024 Amount % (dollars in thousands) Selling, general and administrative $ 42,583 $ 56,571 $ (13,988 ) (25 )% Selling, general and administrative expenses in fiscal year 2025 decreased by $14.0 million, or 25% as compared to the prior year.
The standalone selling price is based on the price we would separately sell that promised good or service to a customer. If a standalone price is not available for a component, it is estimated using the best information available.
The standalone selling price is based on the price we would separately sell that promised good or service to a customer.
For all service-based stock options granted, we calculate the expected term using the simplified method for “plain vanilla” stock option awards. For the expected volatility, we use a blended rate based on the historical volatility of the stock price of our Class A common stock and average volatility of our comparable publicly traded peer companies.
For all service-based stock options granted, we calculate the expected term using the simplified method for “plain vanilla” stock option awards. For the expected volatility, we use the historical volatility of the stock price of our Class A common stock. The risk-free interest rate is based on the yield available on U.S.
The Company also has certain contractual obligations for third-party technology used as part of its normal operations. The contractual obligations represent future cash commitments and liabilities under agreements with third parties and exclude orders for goods and services entered into in the normal course of business that are not enforceable or subject to change.
The contractual obligations represent future cash commitments and liabilities under agreements with third parties and exclude orders for goods and services entered into in the normal course of business that are not enforceable or subject to change. These outstanding commitments amounted to $0.4 million as of December 31, 2025.
Total Other Income Year ended December 31, Change 2024 2023 Amount % (dollars in thousands) Total other income $ 13,600 $ 17,186 $ (3,586 ) (21 )% Total other income in fiscal year 2024 decreased by $3.6 million, or 21% as compared to the prior year.
Total Other Income Year ended December 31, Change 2025 2024 Amount % (dollars in thousands) Total other income $ 4,593 $ 13,600 $ (9,007 ) (66 )% Total other income in fiscal year 2025 decreased by $9.0 million, or 66% as compared to the prior year.
We expect a highly efficient sales model because our workflow integrates with most existing proteomics laboratories’ workflows and also complements large-scale genomics research. We are focused on removing barriers to access to the Proteograph, including through the STAC service offering.
We expect a highly efficient sales model because our workflow integrates with most existing proteomics laboratories’ workflows and it also complements large-scale genomics research.
The expected dividend yield is assumed to be zero as we have never paid dividends and have no current plans to pay dividends on our common stock.
Treasury zero-coupon issues in effect at the time of grant for periods corresponding with the expected term of the options. The expected dividend yield is assumed to be zero as we have never paid dividends and have no current plans to pay dividends on our common stock.
We believe that the accounting policies discussed below are critical to understanding our historical and future performance, as these policies relate to the more significant areas involving management’s judgments and estimates.
We believe that the accounting policies discussed below are critical to understanding our historical and future performance, as these policies relate to the more significant areas involving management’s judgments and estimates. 95 Table of Contents While our significant accounting policies are described in the notes to our consolidated financial statements, we believe that the following critical accounting policies are most important to understanding and evaluating our reported financial results.
The decrease was primarily due to the loss in the equity method investment and lower rates of interest earned on cash invested in money market funds, U.S. Treasury securities, commercial paper, and corporate debt securities. Liquidity and Capital Resources Since the date of our incorporation, we have incurred significant operating losses and negative cash flows from operations.
The decrease was primarily due to the loss in the equity method investment and lower rates of interest earned on cash invested in money market funds, U.S. Treasury securities, U.S. Non-Treasury securities, commercial paper, and corporate debt securities and loss on asset disposals.
We obtain some of the reagents and components used in the Proteograph workflow from third-party suppliers. While some of these reagents and components are currently sourced from a single supplier, these products are readily available from numerous suppliers.
While some of these reagents and components are currently sourced from a single supplier, these products are readily available from numerous suppliers. While we currently perform some filling and packaging of the Proteograph assay and the related consumables, we may eventually have our filling and packaging outsourced to a third party.
These outstanding commitments amounted to $4.5 million as of December 31, 2024. We take a long-term view in growing and scaling our business and regularly review opportunities that meet our long-term growth objectives.
We take a long-term view in growing and scaling our business and regularly review opportunities that meet our long-term growth objectives.
Cost of Revenue Year ended December 31, Change 2024 2023 Amount % (dollars in thousands) Cost of revenue $ 7,115 $ 8,155 $ (1,040 ) (13 )% 97 Table of Contents Cost of revenue in fiscal year 2024 decreased by $1.0 million, or 13% as compared to the prior year.
The increase was due to higher product sales and service revenue. Cost of Revenue Year ended December 31, Change 2025 2024 Amount % (dollars in thousands) Cost of revenue $ 8,113 $ 7,115 $ 998 14 % Cost of revenue in fiscal year 2025 increased by $1.0 million, or 14% as compared to the prior year.
In addition, we will continue to build the necessary infrastructure for these activities in the United States, European Union, the United Kingdom, and other countries and regions, including Asia-Pacific, as we execute on our commercialization strategy for the Proteograph. 94 Table of Contents We leverage well-established unit operations to formulate and manufacture our NPs at our facilities in Redwood City, California.
We have built, and will continue to build our sales, marketing, support and product distribution capabilities. In addition, we will continue to build the necessary infrastructure for these activities in the United States, European Union, the United Kingdom, and other countries and regions, including Asia-Pacific, as we execute on our commercialization strategy for the Proteograph.
Non-cash charges primarily consisted of stock-based compensation of $34.4 million, $5.6 million of depreciation and amortization, $0.8 million of provision for inventory excess and obsolescence, $0.4 million of loss on disposal of property and equipment, and $0.2 million of non-cash operating lease expense, offset by $11.5 million of net accretion of premiums on available-for-sale securities.
Non-cash charges primarily consisted of $15.4 million of stock-based compensation, $6.1 million of depreciation and amortization, $5.9 million of loss on equity method investment, $1.1 million of net amortization of premium on available-for-sale securities, and $1.0 million of loss on disposal of property and equipment.
Starting in January 2025, we renewed the agreement under an extended term through December 2027. Following this extended term, the agreement will automatically renew annually for a maximum of two one-year renewal periods. Hamilton has represented to us that it maintains ISO 9001 and ISO 13485 certifications.
We have entered into a non-exclusive agreement with Hamilton that covers the manufacturing of the automation instrument and its continued supply on a purchase order basis. Starting in January 2025, we renewed the agreement under an extended term through December 2027. Following this extended term, the agreement will automatically renew annually for a maximum of two one-year renewal periods.
Assumptions we used in applying the Black-Scholes option pricing model to determine the estimated fair value of our stock options granted involve inherent uncertainties and the application of significant judgment. As a result, if factors or expected outcomes change and we use significantly different assumptions or estimates, our equity-based compensation could be materially different.
We will continue to use judgment in evaluating the expected volatility, expected terms, and interest rates utilized for our stock-based compensation calculations on a prospective basis. Assumptions we used in applying the Black-Scholes option pricing model to determine the estimated fair value of our stock options granted involve inherent uncertainties and the application of significant judgment.
Our ability to generate product and service revenue sufficient to achieve profitability, if ever, will depend on the successful commercialization of the Proteograph Product Suite and related products and services. We are commercializing the Proteograph Product Suite as an integrated solution comprised of consumables, our SP100 automation instrument and software.
Our ability to generate product and service revenue sufficient to achieve profitability, if ever, will depend on the successful commercialization of the Proteograph Product Suite and related products and services. In May 2025, we advanced our commercial offering with the launch of the new Proteograph Product Suite, featuring the Proteograph ONE assay and SP200 automation instrument.
The decrease was primarily due to lower headcount which resulted in a decrease in employee compensation costs of $2.3 million and a decrease of $1.2 million in stock-based compensation. The decrease was offset by a $1.1 million increase in laboratory expenses.
The decrease was primarily due to a $2.5 million decrease in stock-based compensation, a $2.2 million decrease in allocated costs, a $1.6 million decrease in laboratory expenses, and a $0.5 million decrease in professional services.
We procure certain components of our consumables from third-party manufacturers, which includes the commonly-available raw materials needed for manufacturing our proprietary engineered NPs. We are currently manufacturing using our production-scale and pilot lines and continue to build out our manufacturing capabilities to support broad commercial availability of our products.
We are currently manufacturing using our production-scale lines and continue to build out our manufacturing capabilities to support broad commercial availability of our products. We obtain some of the reagents and components used in the Proteograph workflow from third-party suppliers.
In 2023, cash provided by investing activities was $37.9 million, which related to the proceeds from maturities of available-for-sale securities of $445.3 million and proceeds from sale of available-for-sale securities of $3.0 million. This was offset by the purchases of available-for-sale securities of $403.1 million and purchases of property and equipment, primarily for laboratory equipment, of $7.3 million.
Investing Activities In 2025, cash provided by investing activities was $61.5 million, which was attributable to the proceeds from maturities of available-for-sale securities of $237.8 million and proceeds from disposal of property and equipment of $0.6 million.
While we currently perform some filling and packaging of the Proteograph assay and the related consumables, we may eventually have our filling and packaging outsourced to a third party. We conduct vendor and component qualification for components provided by third-party suppliers and quality control tests on our NPs.
We conduct vendor and component qualification for components provided by third-party suppliers and quality control tests on our NPs. We designed the automation instrument and have outsourced its manufacturing to Hamilton Company, a leading manufacturer of automated liquid handling workstations.
In 2023, cash provided by financing activities was $0.5 million, which was primarily attributable to proceeds of $0.4 million from the issuance of Class A common stock in connection with our employee stock purchase plan and net proceeds of $0.1 million from the exercise of stock options.
This partially was offset by the proceeds of $0.3 million from the issuance of Class A common stock in connection with our employee stock purchase plan.
Cash received from customers in advance of product shipment or providing services is recorded as a contract liability. Our contracts with our customer generally do not include rights of return. At times, we may enter into arrangements with payment terms which exceed one year from the transfer of control of the product or service.
Cash received from customers in advance of product shipment or providing services is recorded as a contract liability. Our contracts with our customer generally do not include rights of return. We have elected the practical expedient to account for shipping and handling activities that occur after the customer has obtained control as a fulfillment activity.
Research and Development Year ended December 31, Change 2024 2023 Amount % (dollars in thousands) Research and development $ 50,585 $ 53,019 $ (2,434 ) (5 )% Research and development expenses in fiscal year 2024 decreased by $2.4 million, or 5% as compared to the prior year.
The increase was primarily due to higher volume from consumables sales. 92 Table of Contents Research and Development Year ended December 31, Change 2025 2024 Amount % (dollars in thousands) Research and development $ 43,874 $ 50,585 $ (6,711 ) (13 )% Research and development expenses in fiscal year 2025 decreased by $6.7 million, or 13% as compared to the prior year.
Our operations have been funded primarily through the sale and issuance of equity securities since inception. We anticipate that we will continue to incur net losses and do not expect positive cash flows from operations for the foreseeable future.
Liquidity and Capital Resources Since the date of our incorporation, we have incurred significant operating losses and negative cash flows from operations. Our operations have been funded primarily through the sale and issuance of equity securities since inception.
During the years ended December 31, 2024 and 2023, we incurred a net loss of $86.6 million and $86.3 million and used $46.1 million and $59.1 million of cash in operations, respectively. As of December 31, 2024, we had an accumulated deficit of $392.4 million and cash, cash equivalents, and investments of $299.5 million.
Hamilton has represented to us that it maintains ISO 9001 and ISO 13485 certifications. During the years ended December 31, 2025 and 2024, we incurred a net loss of $73.6 million and $86.6 million and used $44.4 million and $46.1 million of cash in operations, respectively.
We are broadly commercializing the Proteograph Product Suite through a direct sales channel in the United States, and through both direct and distributor sales channels in regions outside the United States. Since we are in the early stages of commercialization, we have built, and will continue to build our sales, marketing, support and product distribution capabilities.
We are focused on removing barriers to access to the Proteograph, including through the STAC service offering. 89 Table of Contents We sell the Proteograph Product Suite through a direct sales channel in the United States, and through both direct and distributor sales channels in regions outside the United States.