Biggest changeYear Ended December 31, 2023 2022 Change Revenues $ 207,545 $ 107,819 $ 99,726 Cost of revenues 1,730,262 1,148,426 581,836 Gross loss (1,522,717 ) (1,040,607 ) (482,110 ) Operating expenses: General and administrative 4,618,499 3,786,124 832,375 Operations 2,564,930 2,035,063 529,867 Research and development 9,947,258 13,565,765 (3,618,507 ) Sales and marketing 605,205 525,494 79,711 Impairment of long-lived assets 1,468,995 - 1,468,995 Total operating expenses 19,204,887 19,912,446 (707,559 ) Loss from operations (20,727,604 ) (20,953,053 ) 225,449 Other income (expense), net: Interest expense, net (2,264,426 ) (636,330 ) (1,628,096 ) Change in fair value of derivative liability (149,000 ) - (149,000 ) Change in fair value of simple agreements for future equity (1,672,706 ) (265,744 ) (1,406,962 ) Total other income (expense), net (4,086,132 ) (902,074 ) (3,184,058 ) Provision for income taxes - - - Net loss $ (24,813,736 ) $ (21,855,127 ) $ (2,958,609 ) Weighted average common shares outstanding - basic and diluted 14,204,078 6,896,769 Net loss per common share - basic and diluted $ (1.75 ) $ (3.17 ) Revenues were $0.21 million for the year ended December 31, 2023, compared with $0.11 million for the year ended December 31, 2022.
Biggest changeYear Ended December 31, 2024 2023 Change Revenues $ 1,812,483 $ 207,545 $ 1,604,938 Cost of revenues 1,887,639 1,730,262 157,377 Gross profit (loss) (75,156) (1,522,717) 1,447,561 Operating expenses: General and administrative 10,092,911 4,618,499 5,474,412 Operations 3,288,779 2,564,930 723,849 Research and development 24,255,023 9,947,258 14,307,765 Sales and marketing 577,075 605,205 (28,130) Impairment of long-lived assets - 1,468,995 (1,468,995) Total operating expenses 38,213,788 19,204,887 19,008,901 Loss from operations (38,288,944) (20,727,604) (17,561,340) Other income (expense), net: Interest income (expense), net (680,548) (2,264,426) 1,583,878 Change in fair value of derivative liability (221,560) (149,000) (72,560) Change in fair value of simple agreements for future equity - (1,672,706) 1,672,706 Total other income (expense), net (902,108) (4,086,132) 3,184,024 Provision for income taxes - - - Net loss $ (39,191,052) $ (24,813,736) $ (14,377,316) Weighted average common shares outstanding - basic and diluted 36,658,834 14,204,078 22,454,756 Net loss per common share - basic and diluted $ (1.07) $ (1.75) $ (0.64) Revenues increased $1.60 million to $1.81 million for the year ended December 31, 2024 from $0.21 million for the year ended December 31, 2023.
The convertible promissory notes bear interest at a rate of 6.00% per year, compounded annually, due and payable upon request by each investor on or after the 12-month anniversary of the original issuance date of each note. The Company may not prepay or repay the notes in cash without the consent of the investors.
The convertible promissory notes bear interest at a rate of 6% per year, compounded annually, due and payable upon request by each investor on or after the 12-month anniversary of the original issuance date of each note. The Company may not prepay or repay the notes in cash without the consent of the investors.
Cost of revenue consists primarily of allocations of depreciation on robot assets used for revenue-producing activities, personnel time related to revenue-producing activities, and costs related to data, software and similar costs that allow the robots to function as intended and for the Company to communicate with the robots while in service. Operations.
Cost of revenue consists primarily of allocations of depreciation on robot assets used for revenue producing activities, personnel time related to revenue activities and costs related to data, software and similar costs that allow the robots to function as intended and for the Company to communicate with its robots while in service. Operations .
Convertible Promissory Notes Offering At an initial closing on January 2, 2024 and subsequent closings on January 12, 2024, January 22, 2024 and January 26, 2024, we issued to certain accredited investors convertible promissory notes, for which the Company received an aggregate of $5.0 million in proceeds.
Convertible Promissory Notes Offering At an initial closing on January 2, 2024 and subsequent closings on January 12, 2024, January 22, 2024 and January 26, 2024, we issued to certain accredited investors convertible promissory notes, for which the Company received an aggregate of $5 million in proceeds.
Changes in regulations such as the imposition of a cap on the number of robots or technical requirements such as robot size and weight restrictions or limitations on autonomy within a certain geographic area could reduce or limit our ability to generate revenues and/or impact our unit economics in those markets. Future Prospects.
Changes in regulations such as the imposition of a cap on the number of robots or technical requirements such as robot size and weight restrictions or limitations on autonomy within a certain geographic area could reduce or limit our ability to generate revenues and/or impact our unit economics in those markets.
Pursuant to the LSA, Serve, as an independent contractor of Magna, agreed to (i) grant a non-exclusive license to the Serve AMR Technology in the Licensed Fields of Use (each as defined in the LSA) to Magna and its affiliates and (ii) provide all reasonable engineering, technical and related support services that Magna may request from time to time in writing and in furtherance of commercialization of the Serve AMR Technology and products (including software) using, practicing, or incorporating the Serve AMR Technology, and manufactured using, practicing or incorporating the Serve AMR Technology (such services and support, the “Development Services”).
Pursuant to the LSA, Serve, as an independent contractor of Magna, agreed to (i) grant a non-exclusive royalty-free license to the Serve AMR Technology in the Licensed Fields of Use (each as defined in the LSA) to Magna and its affiliates and (ii) provide all reasonable engineering, technical and related support services that Magna may request from time to time in writing and in furtherance of commercialization of the Serve AMR Technology and products (including software) using, practicing, or incorporating the Serve AMR Technology, and manufactured using, 35 Table of Contents practicing or incorporating the Serve AMR Technology (such services and support, the “Development Services”).
As a result of the Merger and the change in our business and operations, a discussion of the past financial results of Patricia Acquisition Corp. is not pertinent, and under applicable accounting principles, the historical financial results of Serve, the accounting acquirer, prior to the Merger are considered our historical financial results.
As a result of the Merger and the change in our business and operations, a discussion of the past financial results of Patricia Acquisition Corp. is not pertinent, and under applicable accounting 34 Table of Contents principles, the historical financial results of Serve, the accounting acquirer, prior to the Merger are considered our historical financial results.
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operation The following discussion of the financial condition and results of operations of the Company should be read in conjunction with the financial statements and the notes to those statements included in this Annual Report on Form 10-K for the period ended December 31, 2023.
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations The following discussion of the financial condition and results of operations of the Company should be read in conjunction with the financial statements and the notes to those statements included in this Annual Report on Form 10-K for the fiscal year ended December 31, 2024.
To the extent that there are differences between our estimates and actual results, our future financial statement presentation, financial condition, results of operation, and cash flows will be affected. We believe that the accounting policies described below involve a greater degree of judgment and complexity.
Actual results could differ significantly from the estimates made by management. To the extent that there are differences between our estimates and actual results, our future financial statement presentation, financial condition, results of operation, and cash flows will be affected. We believe that the accounting policies described below involve a greater degree of judgment and complexity.
As noted in our consolidated financial statements, as of December 31, 2023, we had an accumulated deficit of $68.33 million. 54 Results of Operations Comparison of Results of Operations for the Year ended December 31, 2023 and 2022 The following table summarizes our operating results as reflected in our unaudited statements of operations during the year ended December 31, 2023 and 2022, respectively, and provides information regarding the dollar and percentage increase (or decrease) during such periods.
As noted in our consolidated financial statements, as of December 31, 2024, we had an accumulated deficit of $107.53 million. 38 Table of Contents Results of Operations Comparison of Results of Operations for the Year ended December 31, 2024 and 2023 The following table summarizes our operating results as reflected in our statements of operations during the year ended December 31, 2024 and 2023, respectively, and provides information regarding the dollar and percentage increase (or decrease) during such periods.
Inflation and Market Considerations; Availability of Materials, Labor & Services. We consider most on-demand purchases as discretionary spending for consumers, and we are therefore susceptible to changes in discretionary spending patterns and economic slowdowns in the geographic areas in which merchants on our partners’ platforms operate and in the economy at large.
We consider most on-demand purchases as discretionary spending for consumers, and we are therefore susceptible to changes in discretionary spending patterns and economic slowdowns in the geographic areas in which merchants on our partners’ platforms operate and in the economy at large.
General and administrative expenses also include depreciation on property and equipment as well as amortization of right of use assets. These costs are expensed as incurred. Interest Expense Interest expense consists of stated rates of interest on financing instruments, fees incurred related to financing instruments or accretion of debt discounts.
General and administrative expenses also include depreciation on property and equipment as well as amortization of right of use assets. 37 Table of Contents Interest Income (Expense), Net Interest expense consists of stated rates of interest on financing instruments, fees incurred related to financing instruments or accretion of debt discounts.
Financial Overview For the year ended December 31, 2023 and 2022, we generated revenues of $0.21 million and $0.11 million, respectively, and reported net loss of $24.81 million and $21.86 million, respectively.
Financial Overview For the year ended December 31, 2024 and 2023, we generated revenues of $1.81 million and $0.21 million, respectively, and reported net loss of $39.19 million and $24.81 million, respectively.
Overview On July 31, 2023, Patricia Acquisition Corp., Acquisition Sub, and Serve entered into a Merger Agreement. Pursuant to the terms of the Merger Agreement, on the Closing Date, Acquisition Sub merged with and into Serve, with Serve continuing as the surviving corporation and our wholly owned subsidiary.
Pursuant to the terms of the Merger Agreement, on the Closing Date, Acquisition Sub merged with and into Serve, with Serve continuing as the surviving corporation and our wholly owned subsidiary.
For delivery services, we satisfy our performance obligation when the delivery is complete, which is the point in time control of the delivered product transfers to the customer. We recognize branding fees over time as performance obligations are completed over the term of the agreement. Lease Recognition We account for leases under ASC 842 – Leases.
For delivery services, we satisfy our performance obligation when the delivery is complete, which is the point in time control of the delivered product transfers to the customer. We recognize branding fees over time as performance obligations are completed over the term of the agreement. The Company recognizes revenue on its software services over time.
As a result of the Merger, we acquired the business of Serve and will continue the existing business operations of Serve as a public reporting company under the name Serve Robotics Inc.
As a result of the Merger, we acquired the business of Serve and will continue the existing business operations of Serve as a public reporting company under the name Serve Robotics Inc. On the Closing Date, Serve’s predecessor was renamed Serve Operating Co.
We also entered into an equipment financing lease agreement with Farnam in June 2022, commencing November 2022, for the cost of building robots, calling for 24 monthly payments of approximately $0.19 million based on an expected total cost of $4.46 million of robot parts and manufacturing costs.
Principal payments commenced on October 1, 2022, and the loan was repaid in full as of September 30, 2024. 41 Table of Contents In June 2022, we entered into an equipment financing lease agreement with Farnam Street commencing November 2022, for the cost of building robots, calling for 24 monthly payments of approximately $0.19 million based on an expected total cost of $4.46 million of robot parts and manufacturing costs.
Notwithstanding the foregoing, the Magna Warrant Shares will vest and become exercisable upon any “change of control” (as defined in the Magna Warrant). 51 The Magna Warrant Shares that may be issued pursuant to the exercise of the Magna Warrant were offered and sold in a transaction exempt from registration under the Securities Act in reliance on Section 4(a)(2) of the Securities Act.
The Magna Warrant Shares that may be issued pursuant to the exercise of the Magna Warrant were offered and sold in a transaction exempt from registration under the Securities Act in reliance on Section 4(a)(2) of the Securities Act.
Key metrics We regularly review the following key business metrics to evaluate our business, measure our performance, identify trends affecting our business, formulate business plans, and make strategic decisions: Year Ended December 31, 2023 2022 (Unaudited) (Unaudited) Key Metrics Daily Active Robots 34 28 Daily Supply Hours 260 211 Daily Active Robots: We define daily active robots as the average number of robots performing daily deliveries during the period.
Key metrics We regularly review the following key business metrics to evaluate our business, measure our performance, identify trends affecting our business, formulate business plans, and make strategic decisions: Three Months Ended December 31, Twelve Months Ended December 31, 2024 2023 2024 2023 Key Metrics (Unaudited) (Unaudited) (Unaudited) (Unaudited) Daily Active Robots 57 30 52 29 Daily Supply Hours 455 224 401 206 Daily Active Robots: We define daily active robots as the average number of robots performing daily deliveries during the period.
On the Closing Date, Serve’s predecessor was renamed Serve Operating Co. 50 The Merger was treated as a recapitalization and reverse acquisition for us for financial reporting purposes, and Serve is considered the acquirer for accounting purposes.
The Merger was treated as a recapitalization and reverse acquisition for us for financial reporting purposes, and Serve is considered the acquirer for accounting purposes.
Supply hours increase as we add active robots and increase the operating window of those robots in a day. We closely monitor and strive to efficiently increase our fleet’s daily supply hours. 56 Liquidity and Capital Resources Net cash generated by financing activities is our primary source of liquidity.
Supply hours increase as we add active robots and increase the operating window of those robots in a day. We closely monitor and strive to efficiently increase our fleet’s daily supply hours.
In order to mitigate supply chain risks, we would need to incur higher costs to secure available inventory and place non-cancellable purchase commitments with our suppliers, which could introduce inventory risk if our forecasts and assumptions prove inaccurate.
Supply Chain Constraints. We cannot be sure whether global supply chain shortages will impact our future robot build plans. In order to mitigate supply chain risks, we may need to incur higher costs to secure available inventory and place non-cancelable purchase commitments with our suppliers, which could introduce inventory risk if our forecasts and assumptions prove inaccurate.
Risk Factors . 53 Components of Results of Operations Revenue Our revenue currently consists primarily of (1) delivery revenues and (2) revenues from branding. Operating Expenses Cost of revenue.
Components of Results of Operations Revenue Revenue currently consists of (1) delivery revenues, (2) branding revenues and (3) software services revenues. Cost of Revenue and Operating Expenses Cost of revenue.
We do not undertake and specifically decline any obligation to update any forward-looking statements. Any information contained on our website www.serverobotics.com or any other websites referenced in this report are not part of this report. Our Company We are an operating company which has experienced losses since our inception.
We do not undertake and specifically decline any obligation to update any forward-looking statements. Any information contained on our website www.serverobotics.com or any other websites referenced in this report are not part of this report. Our Company We are on a mission to deliver a sustainable future by transforming how goods move among people.
These estimates are critical as they require management judgment for inputs that are not observable. These estimates are developed based on historical experience and various other assumptions that we believe to be reasonable under the circumstances. Actual results could differ significantly from the estimates made by management.
Our most critical accounting estimates relate to impairment of long-lived assets and stock-based compensation. These estimates are critical as they require management judgment for inputs that are not observable. These estimates are developed based on historical experience and various other assumptions that we believe to be reasonable under the circumstances.
Serve repaid the Promissory Notes and the Exit Fee upon the closing of the Merger. 52 Outlook And Challenges Facing Our Business There are a number of industry factors that affect our business which include, among others: Overall Demand for Last-mile Delivery on Partner Platforms.
Outlook And Challenges Facing Our Business There are a number of industry factors that affect our business which include, among others: Overall Demand for Last-mile Delivery on Partner Platforms. Our potential for growth depends significantly on continued demand for last-mile delivery of food and other items on our partner platforms.
Sales to Uber represented 71% of our revenues for the year ended December 31, 2023, and if Uber were to breach, cancel, or amend our agreement, it may have an outsized effect on our revenue, cash on hand, and profitability. Our business development team is actively pursuing new delivery and branding customers to diversify our customer base.
Sales to Magna and Uber represented 65% and 26% of our revenues for the year ended December 31, 2024, respectively. If Magna or Uber were to breach, cancel, or amend our agreements, it may have an outsized effect on our revenue, cash on hand, and profitability.
In December 2023, the agreement was modified for three monthly payments of approximately $0.03 million and 12 monthly payments of approximately $0.19 million, subject to certain terms and effective in 2024. Contractual Obligations and Commitments The following is a summary of our significant contractual obligations as of December 31, 2023.
In December 2023, the agreement was modified to require three monthly repayments of approximately $0.03 million each and 12 monthly repayments of approximately $0.19 million each, subject to certain terms and effective in January 2024.
Our largest stream of projected revenue comes from maximizing utilization of our robots to perform deliveries on our partner platforms. Matching algorithms on these platforms as well as the extent of their merchant and end-customer participation in robotic delivery directly impacts the utilization rate of our robots, both of which can be challenging to predict.
Matching algorithms on these platforms as well as the extent of their merchant and end-customer participation in robotic delivery directly impacts the utilization rate of our robots, both of which can be challenging to predict. These uncertainties make demand difficult to forecast for us and our partners. Customer Concentration. We currently have a limited number of customers.
For awards with service-based vesting conditions, we record the expense for using the straight-line method. For awards with performance-based vesting conditions, we record the expense if and when we conclude that it is probable that the performance condition will be achieved.
For awards with service-based vesting conditions, we record the expense for using the straight-line method.
Risk Factors in this report for a discussion of the uncertainties, risks and assumptions associated with these forward-looking statements. Our principal offices are located at 730 Broadway, Redwood City, CA 94063, our telephone number is (818) 860-1352 and our corporate website (which does not form part of this report) is located at www.serverobotics.com.
Our principal offices are located at 730 Broadway, Redwood City, CA 94063, our telephone number is (818) 860-1352 and our corporate website (which does not form part of this report) is located at www.serverobotics.com. Overview On July 31, 2023, Patricia Acquisition Corp., Acquisition Sub, and Serve entered into a Merger Agreement.
Our expertise positions us to service the growing on-demand delivery market, including food delivery, where approximately half of all deliveries are less than 2.5 miles and well-suited to delivery by sidewalk robots. We provide a robotic delivery experience that delights customers, improves reliability for merchants, and reduces traffic congestion and eliminates vehicle emissions.
Because we started this project within a food delivery company, our team comes with a depth of combined expertise in food delivery, automation, and robotics. Our expertise positions us to service the growing on-demand delivery market, including food delivery, where approximately half of all deliveries are less than 2.5 miles and well-suited to delivery by sidewalk robots.
Discretionary consumer spending can be impacted by general economic conditions, unemployment, consumer debt, inflation, rising gasoline prices, interest rates, consumer confidence, and other macroeconomic factors. Inflation can lead to increased cost of material and labor for restaurants and merchants who may in turn raise prices on the item they sell and result in a reduction in demand for those items.
Inflation can lead to increased cost of material and labor for restaurants and merchants who may in turn raise prices on the item they sell and result in a reduction in demand for those items. To the extent inflation reduces economic activity and consumer demand for items we deliver, it could negatively impact our financial results.
We historically have been a private company and lacks company-specific historical and implied volatility information for our stock.
The fair value of each stock option grant is estimated on the date of grant using the Black-Scholes option-pricing model. We historically have been a private company and lacks company-specific historical and implied volatility information for our stock.
Our potential for growth depends significantly on continued demand for last-mile delivery of food and other items on our partner platforms. This demand can fluctuate based on various market cycles and weather and local community health conditions, as well as evolving competitive dynamics.
This demand can fluctuate based on various market cycles and weather and local community health conditions, as well as evolving competitive dynamics. Our largest stream of projected revenue comes from maximizing utilization of our robots to perform deliveries on our partner platforms.
The decrease of $6.95 million was attributable primarily to reduced proceeds from SAFEs in 2023 compared to 2022, and lower proceeds from Silicon Valley Bank loan in 2022. 57 Indebtedness In March 2022, we entered into a term loan with Silicon Valley Bank for gross proceeds of $2.50 million with a maturity date of March 1, 2025.
Indebtedness In March 2022, we entered into a term loan with Silicon Valley Bank for gross proceeds of $2.50 million with a maturity date of March 1, 2025. The loan accrues interest at the greater of 3.25 % per annum or prime rate.
The preparation of consolidated financial statements also requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, costs and expenses, and related disclosures. Our most critical accounting estimates relate to impairment of long-lived assets, valuation of SAFEs, stock-based compensation and right of use assets and liabilities.
Critical Accounting Policies and Estimates Our consolidated financial statements and the related notes thereto included in this report are prepared in accordance with United States generally accepted accounting principles. The preparation of consolidated financial statements also requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, costs and expenses, and related disclosures.
The usage of cash in 2022 related to the build of our second-generation robots, whereas in 2023, there were no new builds of robots. Financing Activities Net cash provided by financing activities was $13.27 and $20.21 million for the years ended December 31, 2023 and 2022, respectively.
The increase of $10.31 million was mainly due to robot build construction in-process. Financing Activities Net cash provided by financing activities was $155.12 million and $13.27 million for the years ended December 31, 2024 and 2023, respectively.
Operations expense increased $0.53 million to $2.56 million for the year ended December 31, 2023, compared with $2.04 million for the year ended December 31, 2022, due primarily to servicing the larger scale of the robot fleet.
Operations expense increased $0.72 million to $3.29 million for the year ended December 31, 2024, compared with $2.56 million for the year ended December 31, 2023, due primarily to an increase in headcount of $0.20 million and additional facility costs of $0.11 million.
The change in fair value of derivative liability increased by $0.15 million to $0.15 million for the year ended December 31, 2023 compared to $0.00 million for the year ended December 31, 2022 primarily due to the revaluation of derivative immediately prior to conversion into common stock, and there was no such derivative in the prior year.
The change in fair value of derivative liability increased by $0.07 million to $0.22 million for the year ended December 31, 2024 compared to $0.15 million for the year ended December 31, 2023. The increase in expense was due to the valuation of of the derivatives associated with the 2024 Notes, which were converted into common shares upon the Offering..
At scale, our delivery robots can complete deliveries at lower cost than human couriers, making on-demand delivery more affordable and accessible in areas we operate. Recent Developments License and Services Agreement On February 20, 2024, Serve entered into a License and Services Agreement (the “LSA”) with Magna as a part of a strategic partnership with Magna.
License and Services Agreement On February 20, 2024, Serve entered into a License and Services Agreement (the “LSA”) with Magna as a part of a strategic partnership with Magna.
The following table shows a summary of our cash flows for the periods presented in millions: Year Ended December 31, 2023 2022 Change Net cash (used in) provided by: Operating activities $ (15,970,878 ) $ (21,402,786 ) $ 5,431,908 Investing activities (4,914 ) (4,060,962 ) 4,056,048 Financing activities 13,266,829 20,213,606 (6,946,777 ) (Decrease) increase in cash and cash equivalents $ (2,708,963 ) $ (5,250,142 ) $ 2,541,179 Operating Activities Net cash used in operating activities was $15.97 and $21.40 million for the years ended December 31, 2023 and 2022, respectively.
Cash Flows The following table summarizes our cash flows for the periods indicated: Twelve Months Ended December 31, 2024 2024 2023 Change Net cash (used in) provided by: Operating activities $ (21,542,229) $ (15,970,878) $ (5,571,351) Investing activities (10,317,987) (4,914) (10,313,073) Financing activities 155,119,897 13,266,829 141,853,068 (Decrease) increase in cash and cash equivalents $ 123,259,681 $ (2,708,963) $ 125,968,644 Operating Activities Net cash used in operating activities was $21.54 million and $15.97 million for the years ended December 31, 2024 and 2023, respectively.
We classify stock-based compensation expenses in our statement of operations in the same manner in which the award recipient’s payroll costs are classified or in which the award recipient’s service payments are classified. The fair value of each stock option grant is estimated on the date of grant using the Black-Scholes option-pricing model.
For awards with performance-based vesting conditions, we record the expense if and when we conclude that it is probable that the performance condition will be achieved. 42 Table of Contents We classify stock-based compensation expenses in our statement of operations in the same manner in which the award recipient’s payroll costs are classified or in which the award recipient’s service payments are classified.
General and administrative expense increased $0.83 million to $4.62 million for the year ended December 31, 2023 from $3.79 million for the year ended December 31, 2022, due primarily to an increase in costs related to administrative functions, including finance and accounting, legal, and human resources, as well as general corporate expenses.
General and administrative expense increased $5.47 million to $10.09 million for the year ended December 31, 2024, compared with $4.62 million for the year ended December 31, 2023, due primarily to an increase in headcount of $0.85 39 Table of Contents million, stock-based compensation expense of $2.77 million, legal fees of $0.97 million and increased investor relations expenses of $0.39 million .
As of December 31, 2023, we had current assets of $1.46 million and current liabilities of $6.39 million, which included $0.01 million in cash and cash equivalents. We plan to raise additional working capital to fund operations through the issuance of stock to investors and/or issuance of notes payable.
Liquidity and Capital Resources As of December 31, 2024, we had current assets of $125.25 million and current liabilities of $6.81 million, which included $123.27 million in cash and cash equivalents.
The decrease of $5.43 million was attributable primarily to a decrease in operating expenses including headcount and personnel costs, research and development, and support to revenue-producing activities. Investing Activities Net cash used in investing activities was $0.00 and $4.06 million for the years ended December 31, 2023 and 2022, respectively.
The increase in cash used for 2024 compared to 2023 was mainly due to the increase in net loss and increased stock based compensation. Investing Activities Net cash used in investing activities was $10.32 million and $0.00 million for the years ended December 31, 2024 and 2023, respectively.
The change in fair value of future equity obligations increased by $1.41 million to $1.67 million for the year ended December 31, 2023 compared to $0.27 million for the year ended December 31, 2022 primarily due to the revaluation of SAFEs immediately prior to conversion into common stock.
There was no change in fair value of the simple agreements for future equity (“SAFEs”) for the year ended December 31, 2024, compared with $1.67 million for the same period in 2023. The decrease in expense is related to the SAFE agreements converting to common stock as a part of the merger.
Research and development expense, which represented 51.8% and 68.1% of total operating expenses for the years ended December 31, 2023 and 2022, respectively, decreased $3.62 million to $9.95 million for the year ended December 31, 2023 from $13.57 million for the year ended December 31, 2022, due primarily to a reduction in workforce effective December 2022. 55 Sales and marketing expenses increased $0.08 million to $0.61 million for the year ended December 31, 2023 from $0.53 million for the year ended December 31, 2022, due primarily to an increase in personnel costs and public relations expenses.
Sales and marketing expenses decreased $0.03 million to $0.58 million for the year ended December 31, 2024, compared with $0.61 million for the year ended December 31, 2023, due primarily to a decrease in public relations expense offset by an increase in headcount and stock-based compensation.
Our sources of cash to date have been capital invested by shareholders and venture capital investors/lenders. The following discussion contains forward-looking statements, as discussed above. Please see the sections entitled “ Cautionary Note Regarding Forward-Looking Statements ” and Part I, Item 1A.
Please see the sections entitled “ Cautionary Note Regarding Forward-Looking Statements ” and Part I, Item 1A. Risk Factors in this report for a discussion of the uncertainties, risks and assumptions associated with these forward-looking statements.
For the year ended December 31, 2023 an impairment of long-lived asset expense of $1.47 million was recognized. Based on evaluating the forecasted cash flows through the assets' remaining useful life, and technology becoming obsolete once a new generation of robots is expected to launch, in 2024, management concluded to record a full impairment of the assets.
During the prior year ended December 31, 2023, an impairment of long-lived asset expense of $1.47 million was recognized due to the carrying value being greater than the undiscounted flows over the remaining depreciable life.