Biggest changeWe determined that the bargain purchase gain was primarily attributable to a rapid decline in our stock price in the days following the announcement of the Merger, which persisted through the closing of the Merger. 60 Results of Operations The following table presents our consolidated statements of operations and as a percentage of total revenue for the years ended December 31, 2024 and 2023 ($ in thousands): Year Ended December 31, 2024 2023 Revenue $ 174,432 100 % $ 106,340 100 % Cost of revenue: Cost of product revenue 47,729 27 % 44,942 42 % Cost of service and other revenue 42,265 24 % 10,948 11 % Cost of collaboration and other revenue 176 0 % — — % Total cost of revenue 90,170 52 % 55,890 53 % Gross profit 84,262 48 % 50,450 47 % Operating expenses: Research and development 62,411 36 % 25,948 24 % Selling, general and administrative 156,608 90 % 87,541 82 % Restructuring and related charges 12,500 7 % 7,076 7 % Transaction and integration expenses 27,979 16 % 6,485 6 % Total operating expenses 259,498 149 % 127,050 119 % Loss from operations (175,236 ) (100 )% (76,600 ) (72 )% Bargain purchase gain 25,213 14 % — — % Interest income, net 16,883 10 % 1,005 1 % Other income (expense), net (5,172 ) (3 )% 1,391 1 % Loss before income taxes (138,312 ) (79 )% (74,204 ) (70 )% Income tax expense (573 ) (0 )% (452 ) — % Net loss $ (138,885 ) (80 )% $ (74,656 ) (70 )% Revenue Revenue by product type and as a percentage of total revenue were as follows ($ in thousands): Year Ended December 31, Year-over- 2024 2023 Year Change Product revenue: Instruments $ 28,504 16 % $ 37,459 36 % (24 )% Consumables 60,064 34 % 41,739 39 % 44 % Total product revenue 88,568 50 % 79,198 75 % 12 % Service revenue: Lab services 56,484 33 % 706 — % NM Field services 24,649 14 % 25,274 24 % (2 )% Total service revenue 81,133 47 % 25,980 24 % 212 % Product and service revenue 169,701 97 % 105,178 99 % 61 % Collaboration and other revenue 4,731 3 % 1,162 1 % 307 % Total revenue $ 174,432 100 % $ 106,340 100 % 64 % Total revenue grew 64% to $174.4 million for the year ended December 31, 2024, compared to 2023.
Biggest changeWe determined that the bargain purchase gain was primarily attributable to a rapid decline in our stock price in the days following the announcement of the Merger, which persisted through the closing of the Merger. 44 Results of Operations The following table presents our consolidated statements of operations and as a percentage of total revenue for the years ended December 31, 2025 and 2024 ($ in thousands): Year Ended December 31, 2025 2024 Revenue $ 85,331 100 % $ 91,008 100 % Cost of revenue: Cost of product revenue 29,553 35 % 30,652 34 % Cost of service and other revenue 13,235 16 % 15,473 18 % Total cost of revenue 42,788 50 % 46,125 51 % Gross profit 42,543 50 % 44,883 49 % Operating expenses: Research and development 25,987 30 % 28,831 32 % Selling, general and administrative 109,861 129 % 103,058 113 % Restructuring and related charges 14,782 17 % 12,500 14 % Transaction and integration expenses 2,162 3 % 27,979 31 % Total operating expenses 152,792 179 % 172,368 189 % Loss from operations (110,249 ) (129 )% (127,485 ) (140 )% Bargain purchase gain — — % 25,213 28 % Interest income, net 9,153 11 % 16,883 19 % Other income (expense), net 4,394 5 % (5,008 ) (6 )% Loss from continuing operations before income taxes (96,702 ) (113 )% (90,397 ) (99 )% Income tax benefit (expense) 37,876 44 % (542 ) — % Net loss from continuing operations (58,826 ) (69 )% (90,939 ) (99 )% Discontinued operations: Loss from discontinued operations, net of tax (16,070 ) (19 )% (47,946 ) (52 )% Net loss (74,896 ) (88 )% (138,885 ) (152 )% Revenue Revenue by product type and as a percentage of total revenue were as follows ($ in thousands): Year Ended December 31, Year-over-Year Change 2025 2024 $ % Product revenue: Instruments $ 25,411 30 % $ 24,889 27 % $ 522 2 % Consumables 36,248 42 % 40,540 45 % (4,292 ) (11 )% Total product revenue 61,659 72 % 65,429 72 % (3,770 ) (6 )% Services and other revenue 23,672 28 % 25,579 28 % (1,907 ) (7 )% Total revenue $ 85,331 100 % $ 91,008 100 % $ (5,677 ) (6 )% For the year ended December 31, 2025, total revenue declined $5.7 million, or 6%, compared to 2024.
By integrating our advanced platforms – SomaScan, CyTOF, Hyperion, and Biomark – we empower scientists to generate high-content data across therapeutic areas, from immuno-oncology to neurology and infectious diseases. Each system is engineered to extract meaningful molecular signatures, providing researchers with the tools they need to decode intricate biological networks.
By integrating our advanced platforms – CyTOF, Hyperion, and Biomark – we empower scientists to generate high-content data across therapeutic areas, from immuno-oncology to neurology and infectious diseases. Each system is engineered to extract meaningful molecular signatures, providing researchers with the tools they need to decode intricate biological networks.
Our liquidity and capital requirements depend upon many factors, including market acceptance of our products and services; effectiveness of our business improvement initiatives and restructuring programs; costs of supporting sales growth, product quality, R&D and capital expenditures; and costs and timing of acquiring other businesses, assets or technologies.
Our liquidity and capital requirements depend upon many factors, including market acceptance of our products and services; effectiveness of our business improvement initiatives and restructuring programs; costs of supporting sales growth, product quality, R&D and capital expenditures; and costs and timing of acquiring or divesting other businesses, assets or technologies.
Our ability to fund future operations and meet debt covenant requirements will depend upon our level of future revenue and operating cash flow and our ability to access additional funding through either equity offerings, issuances of debt instruments or both.
Our ability to fund future operations and meet debt covenant requirements will depend upon our level of future revenue and operating cash flow and our ability to access additional funding through either equity offerings, divestitures, issuances of debt instruments or both.
To date, we have funded our operating losses primarily through equity offerings, term loans, convertible notes and issuance of preferred stock.
To date, we have funded our operating losses primarily through equity offerings, term loans, convertible notes, and the issuance of preferred stock.
For those reporting units where events or change in circumstances indicate that potential impairment indicators exist, we perform a quantitative assessment to determine whether the carrying value of goodwill can be recovered. When performing the annual goodwill impairment test, we may start with an optional qualitative assessment.
For those reporting units where events or changes in circumstances indicate that potential impairment indicators exist, we perform a quantitative assessment to determine whether the carrying value of goodwill can be recovered. When performing the annual goodwill impairment test, we may start with an optional qualitative assessment.
The fair value of options and stock purchases under ESPP on the grant date is estimated using the Black-Scholes option-pricing model, which requires the use of certain subjective assumptions, including expected term, volatility, risk-free interest rate and the fair value of 67 our common stock. These assumptions generally require judgment.
The fair value of options and stock purchases under ESPP on the grant date is estimated using the Black-Scholes option-pricing model, which requires the use of certain subjective assumptions, including expected term, volatility, risk-free interest rate and the fair value of 50 our common stock. These assumptions generally require judgment.
Refer to Note 8 of the consolidated financial statements for additional information. • Additional information on our obligations under license and patent agreements, and indemnification agreements entered into in the ordinary course of business is provided in Note 9 to the consolidated financial statements . The expected timing of payments of our obligations is estimated based on current information.
Refer to Note 7 of the consolidated financial statements for additional information. • Additional information on our obligations under license and patent agreements, and indemnification agreements entered into in the ordinary course of business is provided in Note 8 to the consolidated financial statements. The expected timing of payments of our obligations is estimated based on current information.
Federal statutory tax rate primarily due to valuation allowances recorded against deferred tax assets on domestic losses and the tax rate differences between the United States and foreign countries. Liquidity and Capital Resources We have experienced operating losses since inception and have an accumulated deficit of $1.2 billion as of December 31, 2024.
Federal statutory tax rate primarily due to valuation allowances recorded against deferred tax assets on domestic losses and the tax rate differences between the United States and foreign countries. Liquidity and Capital Resources We have experienced operating losses since inception and have an accumulated deficit of $1.3 billion as of December 31, 2025.
Refer to Note 13 to the consolidated financial statements for additional information. Recent Accounting Changes and Accounting Pronouncements Adoption of New Accounting Guidanc e None.
Refer to Note 11 to the consolidated financial statements for additional information. Recent Accounting Changes and Accounting Pronouncements Adoption of New Accounting Guidanc e None.
We have omitted discussion of 2022 results where it would be redundant to the discussion previously included in Item 7 of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023, filed with the SEC on March 1, 2024.
We have omitted discussion of 2023 results where it would be redundant to the discussion previously included in Item 7 of our Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with the SEC on March 11, 2025.
This Annual Report contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the "Securities Act"), and Section 21E of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), that are based on our management’s beliefs and assumptions and on information currently available to our management.
This Annual Report contains forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act, that are based on our management’s beliefs and assumptions and on information currently available to our management.
Restructuring and Related Charges Restructuring and related charges primarily consist of severance costs related to our recent reduction-in-force and facilities costs for floors we have subleased or have the intent to sublease (net of sublease income) under our facility lease in South San Francisco.
Restructuring and Related Charges Restructuring and related charges primarily consist of severance costs related to our recent reduction-in-force and facilities costs for floors we have subleased or have the intent to sublease (net of sublease income) under our SSF facility lease.
We plan to continue to invest significantly in our R&D efforts, including hiring additional employees, with an expected focus on advancing our proteomics products and services. As a result, we expect R&D expenses will increase in absolute dollars in future periods and vary from period to period as a percentage of revenue.
We plan to continue to invest significantly in our R&D efforts with an expected focus on advancing our products and services. As a result, we expect R&D expenses will increase in absolute dollars in future periods and vary from period to period as a percentage of revenue.
The year ended December 31, 2024 primarily reflects $280.0 million of cash and restricted cash acquired in the Merger and $92.9 million of proceeds from sales and maturities of short-term investments, net of purchases, offset by $8.4 million cash used for purchases of property and equipment.
In contrast, the net cash provided for the year ended December 31, 2024 primarily reflects $280.0 million of cash acquired in the Merger, along with $92.9 million of proceeds from sales and maturities of investments, net of purchases, partially offset by purchases of property and equipment of $8.4 million.
Cash Flow Activity Our cash flow summary was as follows ($ in thousands): Year Ended December 31, 2024 2023 Cash flow summary: Net cash used in operating activities $ (143,454 ) $ (43,287 ) Net cash provided by investing activities 363,174 20,237 Net cash used in financing activities (102,616 ) (6,809 ) Effect of foreign exchange rate fluctuations on cash and cash equivalents (785 ) 34 Net increase (decrease) in cash, cash equivalents and restricted cash $ 116,319 $ (29,825 ) We derive cash flows from operations primarily by collecting amounts due from sales of our products and services, and fees earned under our product development and license agreements.
Cash Flow Activity Our cash flow summary was as follows ($ in thousands): Year Ended December 31, 2025 2024 Cash flow summary: Net cash used in operating activities $ (74,343 ) $ (143,454 ) Net cash provided by investing activities 27,409 363,174 Net cash used in financing activities 570 (102,616 ) Effect of foreign exchange rate fluctuations on cash and cash equivalents 842 (785 ) Net increase (decrease) in cash, cash equivalents and restricted cash $ (45,522 ) $ 116,319 We derive cash flows from operations primarily by collecting amounts due from sales of our products and services, and fees earned under our product development and license agreements.
Sources of Liquidity Our principal sources of liquidity are cash, cash equivalents and short-term investments. Our collective balances of cash, cash equivalents and short-term investments were $292.9 million at December 31, 2024 and $114.9 million at December 31, 2023. Our working capital was $310.0 million at December 31, 2024.
Sources of Liquidity 47 Our principal sources of liquidity are cash, cash equivalents and short-term investments. Our collective balances of cash, cash equivalents and short-term investments were $187.6 million at December 31, 2025 and $292.9 million at December 31, 2024. Our working capital was $346.0 million at December 31, 2025.
The fair value of contingent consideration is estimated using a Monte Carlo simulation. These approaches require management to make significant assumptions, including projected cash flows, revenue growth rates, discount rates, etc. These estimates are inherently subjective and based on information available at the acquisition date. Refer to Note 3 to the consolidated financial statements for further information.
These approaches require management to make significant assumptions, including projected cash flows, revenue growth rates, discount rates, etc. These estimates are inherently subjective and based on information available at the acquisition date. Refer to Note 3 to the consolidated financial statements for further information.
Stock-Based Compensation We recognize compensation costs for all stock-based awards, including stock options, restrict stock units ("RSUs"), performance stock units ("PSUs") and shares of common stock purchased under our Employee Share Purchase Plan (“ESPP”), based on the grant date fair value of the award.
Stock-Based Compensation We recognize compensation costs for all stock-based awards, including stock options, restrict stock units ("RSUs") and shares of common stock purchased under our Employee Share Purchase Plan (“ESPP”), based on the grant date fair value of the award. We recognize stock-based compensation expense on a straight-line basis over the requisite service periods.
In the year ended December 31, 2024, we used $92.9 million of net proceeds from the sales and maturities of short-term investments to help fund $143.5 million of net cash used in operating activities, $63.2 million of repayments of the Term Loan Facility and 2014 Notes and $40.5 million of common stock repurchases.
We did not repurchase any common stock or repay any debt during the 12 months ended December 31, 2025. 48 In the year ended December 31, 2024, we used $92.9 million of net proceeds from the sales and maturities of short-term investments to help fund $143.5 million of net cash used in operating activities, $63.2 million of repayments of our term loan and convertible notes issued in 2014, and $40.5 million of common stock repurchases.
Our cost of service revenue and related service margin may fluctuate depending on the variability in material and labor costs of servicing. Cost of collaboration and other revenue Cost of collaboration and other revenue consists primarily of personnel-related costs and other direct costs related to collaboration and other revenue.
Cost of service revenue Cost of service revenue consists of raw materials and production costs, personnel-related costs, overhead and other direct costs. Cost of service revenue is recognized in the period the related revenue is recognized. Our cost of service revenue and related service margin may fluctuate depending on the variability in material and labor costs of servicing.
Recent Accounting Pronouncements A description of recently issued accounting pronouncements that may potentially impact our financial position, results of operations or cash flows is disclosed in Note 2 to our consolidated financial statements included in this Annual Report. 68 ITEM 7A. QUANTITATIVE AN D QUALITATIVE DISCLOSURES ABOUT MARKET RISK Not applicable. 69
Recent Accounting Pronouncements A description of recently issued accounting pronouncements that may potentially impact our financial position, results of operations or cash flows is disclosed in Note 2 to our consolidated financial statements included in this Annual Report. 51
Any adverse changes in the significant estimates and assumptions used in our goodwill impairment test could have a significant impact on our goodwill impairment analyses, and could have a material impact on our consolidated financial statements. The Company's most recent assessment in the fourth quarter of 2024 did not indicate existence of impairment.
Any adverse changes in the significant estimates and assumptions used in our goodwill impairment test could have a significant impact on our goodwill impairment analyses, and could have a material impact on our consolidated financial statements.
Given these uncertainties, you should not place undue reliance on these forward-looking statements. Also, forward-looking statements represent our management’s beliefs and assumptions only as of the date of this Annual Report.
Given these uncertainties, you should not place undue reliance on these forward-looking statements. Also, forward-looking statements represent our management’s beliefs and assumptions only as of the date of this Annual Report. You should read this Annual Report completely and with the understanding that our actual future results may be materially different from what we expect.
The increase was due to the consummation of the Merger in January 2024, which resulted in the fair value of assets acquired and liabilities assumed from the Merger exceeding the fair value of the consideration transferred due to a decline in our stock price following the announcement of the Merger Agreement.
The bargain purchase gain recognized in 2024 was due to the consummation of the Merger, which resulted in the fair value of assets acquired and liabilities assumed exceeding the fair value of the consideration transferred due to a decline in our stock price following the announcement of the Merger. We did not recognize any bargain purchase gains during 2025.
The determination of fair values involves significant judgment and estimates, particularly in valuing acquired intangible assets and contingent consideration arising from the merger. The fair values of acquired intangibles are estimated using various valuation methodologies, including the multi-period excess earnings method for developed technology and customer relationships, and the relief-from-royalty method for trade names.
The fair values of acquired intangibles are estimated using various valuation methodologies, including the multi-period excess earnings method for developed technology and customer relationships, and the relief-from-royalty method for trade names. The fair value of contingent consideration is estimated using a Monte Carlo simulation.
However, once a vendor has incurred costs to fulfill a contract with us, and which costs cannot be otherwise deployed, we are liable for those costs upon cancellation. In connection with the Merger, we assumed a purchase commitment of $6.9 million to a contract manufacturer.
However, once a vendor has incurred costs to fulfill a contract with us, and which costs cannot be otherwise deployed, we are liable for those costs upon cancellation. We have additional obligations beyond the purchase of goods and services, including the following: • Leases .
In the year ended December 31, 2023, we used $23.1 million of net proceeds from the sales and maturities of short-term investments to help fund $43.3 million of net cash used in operating activities, $5.4 million of common stock repurchases and $2.1 million of Term Loan Facility repayments.
In the year ended December 31, 2025, we used $33.1 million of net proceeds from the sales and maturities of investments to help fund $74.3 million of net cash used in operating activities.
Significant judgment is required in determining provisions for slow-moving, excess, and obsolete inventories which are recorded when required to reduce inventory values to their estimated net realizable values based on product life cycle, development plans, product expiration, and quality issues. 66 Business Combinations The Company accounts for business combinations in accordance with ASC 805, which requires the allocation of the purchase price to the fair values of identifiable assets acquired and liabilities assumed.
We regularly review inventory for excess and obsolete products and components. Significant judgment is required in determining provisions for slow-moving, excess, and obsolete inventories which are recorded when required to reduce inventory values to their estimated net realizable values based on product life cycle, development plans, product expiration, and quality issues.
We expect to incur additional integration costs in the future. Bargain Purchase Gain Bargain purchase gain increased by $25.2 million for the year ended December 31, 2024, compared to 2023.
Bargain Purchase Gain Bargain purchase gain decreased by $25.2 million for the year ended December 31, 2025, compared to 2024.
As part of the accounting for these arrangements, we develop estimates and assumptions that require judgment to determine the transaction price and progress towards completion. We review these estimates at the end of each reporting period using the best available information, revise the estimates as necessary, and recognize revenue commensurate with our progress toward completion.
As part of the accounting for these arrangements, we develop estimates and assumptions that require judgment to determine the transaction price and progress towards completion.
Actual results may differ materially from these estimates and judgments. Accounts that rely heavily on estimated information to determine their values include revenue, trade receivables, inventories, right-of-use assets, goodwill, long-lived intangible assets, lease liabilities, and preferred equity. Refer to Note 2 to our consolidated financial statements for further information on our most significant accounting policies.
We develop these estimates after considering historical transactions, the current economic environment and various other assumptions considered reasonable under the circumstances. Actual results may differ materially from these estimates and judgments. Accounts that rely heavily on estimated information to determine their values include revenue, trade receivables, inventories, right-of-use assets, goodwill, long-lived intangible assets, lease liabilities, and preferred equity.
These costs, including a reduction in force, are incurred to improve operational efficiency, achieve cost savings and align our workforce to the future needs of the business. In addition to the reduction in force, we are reducing leased office space, optimizing our manufacturing footprint and streamlining support functions.
These costs, including a reduction in force, are incurred to improve operational efficiency, achieve cost savings and align our workforce to the future needs of the business. When combined, these reductions-in-force impacted approximately 20% of our total global workforce.
Restructuring and Related Charges Restructuring and related charges consisted of the following (in thousands): Year Ended December 31, Year-over- 2024 2023 Year Change Severance and other termination benefits $ 8,988 $ 2,379 278 % Facilities and other 3,512 4,697 (25 )% Total restructuring and related charges $ 12,500 $ 7,076 77 % Restructuring and related charges increased by $5.4 million for the year ended December 31, 2024, compared to 2023, due to increased severance costs resulting from the Strategic Reorganization following the Merger.
Restructuring and Related Charges Restructuring and related charges consisted of the following (in thousands): Year Ended December 31, Year-over-Year Change 2025 2024 $ % Severance and other termination benefits $ 11,306 $ 8,988 $ 2,318 26 % Facilities and other 3,476 3,512 (36 ) (1 )% Total restructuring and related charges $ 14,782 $ 12,500 $ 2,282 18 % Restructuring and related charges for the year ended December 31, 2025 increased by $2.3 million, or 18%, respectively, compared to 2024.
We recognize stock-based compensation expense on a straight-line basis over the requisite service periods for non-performance-based awards. For RSUs, fair value is measured based on the closing fair market value of our common stock on the date of grant.
For RSUs, fair value is measured based on the closing fair market value of our common stock on the date of grant.
Inventories Inventories are stated at the lower of cost (on a first-in, first-out basis) or net realizable value. Inventory costs include direct materials, direct labor, and normal manufacturing overhead. We regularly review inventory for excess and obsolete products and components.
We review these estimates at the end of each reporting period using the best available information, revise the estimates as necessary, and recognize revenue commensurate with our progress toward completion. 49 Inventories Inventories are stated at the lower of cost (on a first-in, first-out basis) or net realizable value. Inventory costs include direct materials, direct labor, and normal manufacturing overhead.
The year ended December 31, 2023 primarily reflects $23.1 million of proceeds from sales and maturities of short-term investments, net of purchases. Financing Activities Financing activities used cash of $102.6 million for the year ended December 31, 2024, and used cash of $6.8 million in the same period of 2023.
Financing Activities Financing activities provided cash of $0.6 million for the year ended December 31, 2025, and used cash of $102.6 million in the same period of 2024.
We expect the average selling prices of our products and services to fluctuate over time based on market conditions, product mix and currency fluctuations. Collaboration and other revenue Collaboration and other revenue consists of fees earned for research and development services, except for grant revenue research and development services that are classified in other revenue.
We expect the average selling prices of our products and services to fluctuate over time based on market conditions, product mix and currency fluctuations. 43 Cost of Revenue Cost of product revenue Cost of product revenue consists primarily of raw materials, equipment and production costs, salaries and other personnel costs, overhead and other direct costs related to product revenue.
Interest Income, net The increase in interest income, net of $15.9 million for the year ended December 31, 2024, compared to the same period in 2023 , was primarily due to the interest earned on increased balances of money market funds and short-term investments, as well as a decrease in 63 interest expense due to repayment of our term loan in March 2024.
Interest Income Interest income decreased by $11.0 million, or 55%, for the year ended December 31, 2025, compared to 2024. The decrease was primarily due to a reduction in the interest earned on balances of money market funds and investments.
Operating Activities Net cash used in operating activities for the year ended December 31, 2024 increased by $100.2 million, compared to the same period in 2023.
Investing Activities Net cash provided by investing activities for the year ended December 31, 2025 was $27.4 million, compared to $363.2 million for the year ended December 31, 2024.
The 2019 Notes matured on December 1, 2024 and all outstanding principal and accrued interest was fully repaid. • Leases . Future payments for operating lease obligations (net of sublease income) at December 31, 2024 totaled $34.2 million, of which $6.8 million is expected to be paid in 2025.
Future payments for operating lease obligations (net of sublease income) at December 31, 2025 totaled $33.0 million, of which $7.0 million is expected to be paid in 2026.
Consumables revenue is largely driven by the size of our active installed base of instruments and the level of usage per instrument. Consumables revenue is also driven by the sale of SomaScan® assay kits, which is driven by the number of active SomaScan® Authorized Sites and the number of assays performed at those sites.
Consumables revenue is largely driven by the size of our active installed base of instruments and the level of usage per instrument. Service revenue Service revenue primarily consists of post-warranty service contracts, preventive maintenance plans, installation and training for our instruments.
The year over year decrease was primarily attributable to decreased revenues in the genomics segment. 62 Operating Expenses Operating expenses were as follows ($ in thousands): Year Ended December 31, Year-over- 2024 2023 Year Change Research and development $ 62,411 $ 25,948 141 % Selling, general and administrative 156,608 87,541 79 % Restructuring and related charges 12,500 7,076 77 % Transaction and integration expenses 27,979 6,485 331 % Total operating expenses $ 259,498 $ 127,050 104 % Research and Development R&D expense increased by $36.5 million, or 141%, for the year ended December 31, 2024, compared to 2023.
Operating Expenses Operating expenses were as follows ($ in thousands): Year Ended December 31, Year-over-Year Change 2025 2024 $ % Research and development $ 25,987 $ 28,831 $ (2,844 ) (10 )% Selling, general and administrative 109,861 103,058 6,803 7 % Restructuring and related charges 14,782 12,500 2,282 18 % Transaction and integration expenses 2,162 27,979 (25,817 ) (92 )% Total operating expenses $ 152,792 $ 172,368 $ (19,576 ) (11 )% Research and Development For the year ended December 31, 2025, R&D expense decreased $2.8 million, or 10%, compared to 2024.
Transaction and Integration Expenses Transaction and integration expenses increased by $21.5 million for the year ended December 31, 2024, compared to 2023. The increase was primarily due to legal, advisory, accounting costs, and integration expenses incurred in connection with the Merger in the first quarter of 2024, and the acquisition of Sengenics in the fourth quarter of 2024.
The decrease was primarily due to significant legal, advisory, accounting, and integration expenses incurred in connection with the Merger during the 46 year ended December 31, 2024, the majority of which were one-time in nature. We expect to incur additional transaction and integration expenses in connection with future transactions.
These changes in cash from financing activities are primarily driven by the repayments of our Term Loan Facility and 2014 Notes totaling $63.2 million, and repurchases of common stock totaling $40.5 million, during the year ended December 31, 2024.
During the year ended December 31, 2024, we executed $40.5 million of common share repurchases under the 2024 Stock Repurchase Program and made $63.2 million of payments on our term loan and convertible notes issued in 2014. We did not repurchase any common shares or repay any debt during the year ended December 31, 2025.
During the year ended December 31, 2023, we repurchased $5.4 million of common stock and repaid $2.1 of our Term Loan Facility. Critical Accounting Policies and Estimates The consolidated financial statements and related notes included in this Annual Report are prepared in accordance with U.S. GAAP. Preparing U.S.
Critical Accounting Policies and Estimates The consolidated financial statements and related notes included in this Annual Report are prepared in accordance with U.S. GAAP. Preparing U.S. GAAP financial statements requires the use of estimates and assumptions to determine the value of the assets, liabilities, revenues and expenses reported on the consolidated balance sheets and statements of operations.
Together, these technologies accelerate discovery, offering a comprehensive approach to understanding the complexities of health and disease. 57 Recent Developments Merger On January 5, 2024, we completed the Merger with SomaLogic.
Together, these technologies accelerate discovery, offering a comprehensive approach to understanding the complexities of health and disease. Recent Developments Divestiture On June 22, 2025, we entered into the Purchase Agreement with Illumina pursuant to which Illumina acquired the Disposed Entities. The Transaction did not include our mass cytometry and microfluidics businesses, which we retained.
Cost of Revenue Product and service cost, gross profit, and gross margin were as follows ($ in thousands): Year Ended December 31, Year-over- 2024 2023 Year Change Cost of product revenue $ 47,729 $ 44,942 6 % Cost of service revenue 42,265 10,948 286 % Cost of collaboration and other revenue 176 — N/A Total cost of revenue $ 90,170 $ 55,890 61 % Gross profit $ 84,262 $ 50,450 67 % Gross margin 48.3 % 47.4 % 0.9 % Gross profit increased by $33.8 million, or 67%, for the year ended December 31, 2024, compared to 2023.
Cost of Revenue Product and service cost, gross profit, and gross margin were as follows ($ in thousands): 45 Year Ended December 31, Year-over-Year Change 2025 2024 $ % Cost of product revenue $ 29,553 $ 30,652 $ (1,099 ) (4 )% Cost of service revenue 13,235 15,473 (2,238 ) (14 )% Total cost of revenue $ 42,788 $ 46,125 $ (3,337 ) (7 )% Gross profit $ 42,543 $ 44,883 $ (2,340 ) (5 )% Gross margin 49.9 % 49.3 % N/A 1 % For the year ended December 31, 2025, gross profit decreased $2.3 million, or 5%, compared to 2024, primarily due to revenue decline.
Our operating lease arrangements require cash repayment and our convertible debt contains rights that may result in their conversion to our common stock prior to maturity. On March 4, 2024, we fully repaid all outstanding indebtedness owed pursuant to the $10.0 million term loan facility (the "Term Loan Facility") and terminated the agreement.
Our operating lease arrangements require cash repayment and our convertible debt contains rights that may result in their conversion to our common stock prior to maturity. A summary of our significant future capital requirements include: Purchase Obligations and Commitments Purchase obligations consist of contractual and legally binding commitments to purchase goods and services.
Refer to Note 5 to the consolidated financial statements for additional information on goodwill and long-lived assets.
Refer to Note 2 to our consolidated financial statements for further information on our most significant accounting policies.
The increase was primarily driven by the impact of the Merger, which expanded our proteomics capabilities, products and services. Genomics gross profit decreased by 7% to $22.5 million for the year ended December 31, 2024, compared to 2023.
The increase was primarily driven by an increase in severance and other benefits paid in connection with the reductions of our workforce during the year ended December 31, 2025. Transaction and Integration Expenses Transaction and integration expenses decreased by $25.8 million for the year ended December 31, 2025, compared to 2024.
Due to the acquisition of SomaLogic, revenue increased by $82.3 million for the year ended December 31, 2024 compared to 2023. The increase was offset by a decrease of $14.2 million in revenues from our legacy business for the year ended December 31, 2024, compared to 2023.
Operating Activities Net cash used in operating activities for the year ended December 31, 2025 decreased by $69.1 million, compared to the same period in 2024. The decrease in cash use was due to a decrease in operating expenses for the year ended December 31, 2025 compared to 2024, resulting from the completion of restructuring activities during 2024 and 2025.