Biggest changeLoss on Issuance of Common Stock, Pre-Funded Warrants and Warrants Loss on issuance of common stock, pre-funded warrants and warrants represents the excess of the initial fair value of common stock, pre-funded warrants and warrants over the aggregate gross proceeds in the private placement consummated in April 2024. 77 Results of Operations Comparison of the Years Ended December 31, 2024 and 2023 The following table summarizes results of operations for the periods presented (dollars in thousands): Year Ended December 31, $ % 2024 2023 Change Change Collaboration and license revenue $ 10,000 $ — $ 10,000 * Research service revenue - related party 655 — 655 * Total revenue 10,655 — 10,655 * Operating expenses: Research and development 21,132 27,230 (6,098 ) -22 % General and administrative 15,062 15,798 (736 ) -5 % Restructuring — 2,752 (2,752 ) -100 % Total operating expenses 36,194 45,780 (9,586 ) -21 % Loss from operations (25,539 ) (45,780 ) 20,241 -44 % Interest income 1,693 2,340 (647 ) -28 % Other (expense) income, net (19,321 ) 398 (19,719 ) * Loss on issuance of common stock, pre-funded warrants and warrants (20,397 ) — (20,397 ) * Net loss $ (63,564 ) $ (43,042 ) $ (125 ) 0 % * Percentage is not meaningful Collaboration and License Revenue The increase of $10.0 million in collaboration and license revenue for 2024, compared to 2023 is due to the recognition of a milestone achieved under the CLA with BI in September 2024.
Biggest changeOther Expense, Net Other expense, net primarily consists of the non-cash change in fair value of warrant liabilities, financing transaction costs and the non-cash impairment charge on warrant asset. 80 Results of Operations Comparison of the Years Ended December 31, 2025 and 2024 The following table summarizes results of operations for the periods presented (dollars in thousands): Year Ended December 31, $ % 2025 2024 Change Change Collaboration and license revenue $ — $ 10,000 $ (10,000 ) -100 % Research service revenue - related party 3,477 655 2,822 * Total revenue 3,477 10,655 (7,178 ) -67 % Operating expenses: Research and development 29,365 21,132 8,233 39 % General and administrative 16,204 15,062 1,142 8 % Total operating expenses 45,569 36,194 9,375 26 % Loss from operations (42,092 ) (25,539 ) (16,553 ) 65 % Interest income 3,020 1,693 1,327 78 % Loss on issuance of common stock, pre-funded warrants and warrants in the 2024 PIPE — (20,397 ) 20,397 -100 % Loss on amendment and cancelation of warrants (2,073 ) — (2,073 ) * Loss on execution of the 2025 PIPE (71,084 ) — (71,084 ) * Loss on change in fair value of tranche liability (104,847 ) — (104,847 ) * Gain on settlement of tranche liability 1,362 — 1,362 * Other expense, net (26,312 ) (19,321 ) (6,991 ) 36 % Net loss and comprehensive loss $ (242,026 ) $ (63,564 ) $ (178,462 ) * * Percentage is not meaningful Collaboration and License Revenue The decrease of $10.0 million in collaboration and license revenue for 2025, compared to 2024 is due to the recognition of a milestone achieved under the CLA with Boehringer Ingelheim in September 2024.
This is due to the numerous risks and uncertainties associated with the development of product candidates, many of which are outside of our control, including those associated with: • our ability, and the ability of our primary business partners, to hire and retain key personnel; • the timing and progress of preclinical and clinical development activities; • the number and scope of preclinical and clinical programs we decide to pursue; • our ability to maintain our current research and development programs and to establish new ones; • establishing an appropriate safety profile with IND-enabling studies; • the number of sites and patients included in the clinical trials; • the countries in which the clinical trials are conducted; • per patient trial costs; • successful patient enrollment in, and the initiation of, clinical trials, as well as drop out or discontinuation rates, the availability of alternate treatments and the limited pool of eligible patients in certain disease areas; • the successful completion of clinical trials with safety, tolerability and efficacy profiles that are satisfactory to the FDA or any comparable foreign regulatory authority; • the number of trials required for regulatory approval; • the timing, receipt and terms of any regulatory approvals from applicable regulatory authorities; 76 • our ability to establish new licensing or collaboration arrangements; • the performance of our current and future business partners, if any; • establishing commercial manufacturing capabilities or making arrangements with third-party manufacturers; • significant and changing government regulation and regulatory guidance; • the impact of any business interruptions to our operations or to those of the third parties with whom we work; • the impact of inflation on our expenses; • launching commercial sales of our drug candidates, if approved, whether alone or in collaboration with others; • the effect of products that may compete with our product candidates or other market developments; and • maintaining a continued acceptable safety profile of the drug candidates following approval.
This is due to the numerous risks and uncertainties associated with the development of product candidates, many of which are outside of our control, including those associated with: • our ability, and the ability of our primary business partners, to hire and retain key personnel; • the timing and progress of preclinical and clinical development activities; • the number and scope of preclinical and clinical programs we decide to pursue; • our ability to maintain our current research and development programs and to establish new ones; • establishing an appropriate safety profile with IND-enabling studies; • the number of sites and patients included in the clinical trials; • the countries in which the clinical trials are conducted; • per patient trial costs; • successful patient enrollment in, and the initiation of, clinical trials, as well as drop out or discontinuation rates, the availability of alternate treatments and the limited pool of eligible patients in certain disease areas; • the successful completion of clinical trials with safety, tolerability and efficacy profiles that are satisfactory to the FDA or any comparable foreign regulatory authority; • the number of trials required for regulatory approval; • the timing, receipt and terms of any regulatory approvals from applicable regulatory authorities; • our ability to establish new licensing or collaboration arrangements; • the performance of our current and future business partners, if any; • establishing commercial manufacturing capabilities or making arrangements with third-party manufacturers; • significant and changing government regulation and regulatory guidance; • the impact of any business interruptions to our operations or to those of the third parties with whom we work; • the impact of inflation on our expenses; • launching commercial sales of our product candidates, if approved, whether alone or in collaboration with others; • the effect of products that may compete with our product candidates or other market developments; and • maintaining a continued acceptable safety profile of the product candidates following approval.
Since our inception in 2015, we have devoted substantially all of our efforts and financial resources to organizing and staffing our company, business planning, raising capital, developing and optimizing our Wnt therapeutics platform, identifying potential product candidates, undertaking research and development activities, engaging in strategic transactions, establishing and enhancing our 74 intellectual property portfolio, and providing general and administrative support for these operations.
Since our inception in 2015, we have devoted substantially all of our efforts and financial resources to organizing and staffing our company, business planning, raising capital, developing and optimizing our Wnt therapeutics platform, identifying potential product candidates, undertaking research and development activities, engaging in strategic transactions, establishing and enhancing our intellectual property portfolio, and providing general and administrative support for these operations.
In exchange for our research services, TCGFB agreed to pay us a fixed monthly fee up to $6.0 million in the aggregate, plus any third-party costs, and issued us a warrant exercisable for up to 3.4 million shares of TCGFB common stock at an exercise price of $0.0001 per share based on certain vesting conditions.
In exchange for our research services, TCGFB agreed to pay us a fixed monthly fee up to $6.0 million in the aggregate, plus any third-party costs, and issued us a warrant exercisable 77 for up to 3.4 million shares of TCGFB common stock at an exercise price of $0.0001 per share based on certain vesting conditions.
Licensing Arrangements In October 2022, we executed a Collaboration and Licensing Agreement, or the CLA, with Boehringer Ingelheim International GmbH, or BI, to research, develop and commercialize Frizzled 4, or Fzd4, bi-specific antibodies designed using our SWAP technology, including SZN-413. We and BI conducted partnership research focused on SZN-413 during a 1.5-year period.
Licensing Arrangements In October 2022, we executed a Collaboration and Licensing Agreement, or the CLA, with Boehringer Ingelheim International GmbH, or Boehringer Ingelheim, to research, develop and commercialize Frizzled 4, or Fzd4, bi-specific antibodies designed using our SWAP technology, including SZN-413. Boehringer Ingelheim and us conducted partnership research focused on SZN-413 during a 1.5-year period.
Our future funding requirements will depend on many factors, including, but not limited to: • the scope, rate of progress, results and costs of researching and developing our lead product candidates or any future product candidates, conducting preclinical and clinical studies; • the outcome, costs, and timing involved in obtaining regulatory approvals for our product candidates; • the achievement of milestones that trigger payments to us and the timing, receipt and amount of royalties under the CLA and any collaboration and license agreement we may enter in the future; • the number and scope of clinical programs we decide to pursue; • the cost of acquiring, licensing, or investing in product candidates and technologies; • the costs associated with securing and establishing commercialization; 80 • our ability to maintain, expand, and defend the scope of our intellectual property portfolio, including the amount and timing of any payments we may be required to make, or that we may receive, in connection with the licensing, filing, prosecution, defense, and enforcement of any patents or other intellectual property rights; • our need and ability to retain key management and hire scientific, technical, business, and medical personnel; • the effect of competing products and product candidates and other market developments; • the timing, receipt, and amount of sales from our lead product candidates, if approved; • our need to implement additional internal systems and infrastructure, including financial and reporting systems; • the economic and other terms, timing of, and success of any collaboration, licensing, or other arrangements which we may enter in the future; and • the effects of the disruptions to and volatility in the credit and financial markets in the U.S. and worldwide.
Our future funding requirements will depend on many factors, including, but not limited to: • the scope, rate of progress, results and costs of researching and developing our lead product candidates or any future product candidates, conducting preclinical and clinical studies; • the outcome, costs, and timing involved in obtaining regulatory approvals for our product candidates; • the achievement of milestones that trigger payments to us and the timing, receipt and amount of royalties and any collaboration and license agreement we may enter in the future; • the number and scope of clinical programs we decide to pursue; • the cost of acquiring, licensing, or investing in product candidates and technologies; • the costs associated with securing and establishing commercialization; • our ability to maintain, expand, and defend the scope of our intellectual property portfolio, including the amount and timing of any payments we may be required to make, or that we may receive, in connection with the licensing, filing, prosecution, defense, and enforcement of any patents or other intellectual property rights; • our need and ability to retain key management and hire scientific, technical, business, and medical personnel; • the effect of competing products and product candidates and other market developments; • the timing, receipt, and amount of sales from our lead product candidates, if approved; • our need to implement additional internal systems and infrastructure, including financial and reporting systems; • the economic and other terms, timing of, and success of any collaboration, licensing, or other arrangements which we may enter in the future; and • the effects of the disruptions to and volatility in the credit and financial markets in the U.S. and worldwide.
For five years after the effective date of the CLA, we are prohibited from preclinically and clinically developing or commercializing Fzd4 bi-specific antibodies that have certain properties for any diseases of the eye, and BI is prohibited from clinically developing or commercializing licensed products for any purpose other than diseases of the eye.
For five years after the effective date of the CLA, we are prohibited from preclinically and clinically developing or commercializing Fzd4 bi-specific antibodies that have certain properties for any diseases of the eye, and Boehringer Ingelheim is prohibited from clinically developing or commercializing licensed products for any purpose other than diseases of the eye.
Under the terms of the CLA, BI paid us a non-refundable upfront payment of $12.5 million less applicable withholding tax and agreed to pay success-based milestone payments up to $587.0 million and mid-single digit to low-double digit royalties on net sales of the licensed products should any reach commercialization.
Under the terms of the CLA, Boehringer Ingelheim paid us a non-refundable upfront payment of $12.5 million less applicable withholding tax and agreed to pay success-based milestone payments up to $587.0 million and mid-single digit to low-double digit royalties on net sales of the licensed products should any reach commercialization.
In September 2024, a milestone was achieved as BI decided to move forward with the development of SZN-413, and we received a $10.0 million non-refundable and non-creditable payment from BI pursuant to the terms of the CLA. The milestone payment of $10.0 million was recognized as collaboration and license revenue for the year ended December 31, 2024.
In September 2024, a milestone was achieved upon decision by Boehringer Ingelheim to move forward with the development of SZN-413, and we received a $10.0 million non-refundable and non-creditable payment from Boehringer Ingelheim pursuant to the terms of the CLA. The milestone payment of $10.0 million was recognized as collaboration and license revenue for the year ended December 31, 2024.
General and administrative expenses also include legal, audit, tax and other consulting fees, investor relations services, insurance costs, and facility costs not otherwise included in research and development expenses, and costs associated with compliance with the rules and regulations of the SEC and Nasdaq. Restructuring Expenses Restructuring expenses include costs in connection with the workforce reductions implemented in 2023.
General and administrative expenses also include legal, audit, tax and other consulting fees, investor relations services, insurance costs, and facility costs not otherwise included in research and development expenses, and costs associated with compliance with the rules and regulations of the SEC and Nasdaq.
We granted BI an exclusive, royalty-bearing, worldwide, sublicensable license, under our applicable patents and know-how, to develop, manufacture and commercialize, for all uses, one lead and two back-up Fzd4 bi-specific antibodies selected by BI.
Under the CLA, Boehringer Ingelheim has an exclusive, royalty-bearing, worldwide, sublicensable license, under our applicable patents and know-how, to develop, manufacture and commercialize, for all uses, one lead and two back-up Fzd4 bi-specific antibodies selected by Boehringer Ingelheim.
Warrant Liabilities We account for all outstanding warrants as liabilities and record at fair value. Transaction costs associated with the warrant liabilities are recognized as other expenses when incurred. At the end of each reporting period, changes in fair value during the period are recognized in other (expense) income, net within the consolidated statements of operations and comprehensive loss.
Transaction costs associated with the warrant liabilities are recognized as other expenses when incurred. At the end of each reporting period, changes in fair value during the period are recognized in other expense, net within the consolidated statements of operations and comprehensive loss.
We will continue to adjust the warrant liabilities for changes in the fair value until the earlier of (a) the exercise or expiration of the warrants or (b) the redemption of the warrants, at which time such warrants will be reclassified to additional paid-in capital.
We will continue to adjust the warrant liabilities for changes in the fair value until the earlier of (a) the exercise or expiration of the warrants or (b) the redemption of the warrants, at which time such warrants will be reclassified to additional paid-in capital. We issued and sold warrants to purchase common stock in private placements.
While we do not believe that inflation has had a material effect on our financial condition and results of operations during the periods presented, it may result in increased costs in the foreseeable future and adversely affect our business and financial condition.
Inflation generally affects us by increasing our labor costs, research and clinical trial costs. While we do not believe that inflation has had a material effect on our financial condition and results of operations during the periods presented, it may result in increased costs in the foreseeable future and adversely affect our business and financial condition.
We have incurred net losses since inception. For the years ended December 31, 2024 and 2023, we incurred net losses of $63.6 million and $43.0 million, respectively. As of December 31, 2024, we had an accumulated deficit of $285.3 million and cash and cash equivalents of $34.6 million.
We have incurred net losses since inception. For the years ended December 31, 2025 and 2024, we incurred net losses of $242.0 million and $63.6 million, respectively. As of December 31, 2025, we had an accumulated deficit of $527.3 million and cash and cash equivalents of $89.2 million.
At the closing of the first tranche of this private placement on March 26, 2025, (i) 5,213,415 shares of common stock, (ii) pre-funded warrants to purchase up to 1,373,000 shares of common stock, and (iii) Series E common stock warrants to purchase up to 3,293,207 shares of common stock were issued and sold for aggregate gross proceeds of approximately $76.4 million, before deducting placement agent fees and other expenses.
At the closing of the first tranche of the 2025 PIPE, (i) 5,213,415 shares of common stock, (ii) pre-funded warrants to purchase up to 1,373,000 shares of common stock, and (iii) Series E common stock warrants to purchase up to 3,293,207 shares of common stock were issued and sold for aggregate net proceeds of $71.2 million, after deducting placement agent fees and other expenses.
Cash used in operating activities of $40.4 million for 2023 was primarily due to the use of funds in our operations and the resulting net loss of $43.0 million and a net change of $3.9 million in our net operating assets and liabilities, partially offset by $6.6 million in non-cash charges.
Cash used in operating activities of $17.6 million for 2024 was primarily due to the use of funds in our operations, and the resulting net loss of $63.6 million and a net change of $0.8 million in our net operating assets and liabilities, partially offset by $46.8 million in non-cash charges.
After an initial period of joint research, BI shall be responsible for all further research, preclinical and clinical development, manufacturing, regulatory approvals, and commercialization of licensed products at its expense.
After the initial period of joint research, Boehringer Ingelheim is responsible for all further research, preclinical and clinical development, manufacturing, regulatory approvals, and commercialization of licensed products at its expense.
External expenses include: • costs incurred under agreements with third parties, including CROs and other third parties conducting research and development activities on our behalf; • costs of outside consultants, including their fees, stock-based compensation and related travel expenses; • costs of laboratory supplies and acquiring, developing and manufacturing drug candidate materials; and • license and sublicense costs under our license agreements made for intellectual property used in research and development activities.
External expenses include: • costs incurred under agreements with third parties, including CROs and other third parties conducting research and development activities on our behalf; • costs of outside consultants, including their fees, stock-based compensation and related travel expenses; • costs of laboratory supplies and acquiring, developing and manufacturing product candidate materials; and • license and sublicense costs under our license agreements made for intellectual property used in research and development activities. 78 Internal expenses include: • personnel-related costs, including salaries, bonuses, benefits and stock-based compensation for individuals involved in our research and product development activities; and • facilities, depreciation, and other allocated costs, which include rent and insurance.
In April 2024, we entered into a securities purchase agreement with certain institutional investors and management and issued and sold in a private placement: (i) 1,091,981 shares of common stock, (ii) pre-funded warrants to purchase up to 40,000 shares of common stock, and (iii) warrants to purchase up to 11,136,106 shares of common stock.
In February 2026, Series E common stock warrants were exercised for 34,000 shares of common stock, resulting in gross proceeds of $0.4 million. 2024 Private Placement In April 2024, we entered into a securities purchase agreement with certain institutional investors and management and issued and sold in a private placement: (i) 1,091,981 shares of common stock, (ii) pre-funded warrants to purchase up to 40,000 shares of common stock, and (iii) warrants to purchase up to 11,136,106 shares of common stock.
Private Placements In March 2025, we entered into a securities purchase agreement with certain institutional and accredited investors to issue and sell an aggregate of 15,086,236 units in a two-tranche private placement at a purchase price of $11.60 per share and $11.5999 per pre-funded warrant, for gross proceeds of approximately $175.0 million to fund multiple ophthalmology programs through initial Phase 1 safety, tolerability and efficacy studies.
The compensation payable to TD Cowen is up to 3.0% of the gross sales price of any shares sold pursuant to this new sales agreement. 82 2025 Private Placement In March 2025, we entered into a securities purchase agreement with certain investors to issue and sell an aggregate of 15,086,236 units in a two-tranche private placement (the 2025 PIPE) at a purchase price of $11.60 per share and $11.5999 per pre-funded warrant, for gross proceeds of $175.0 million to fund multiple ophthalmology programs through initial Phase 1 safety, tolerability and efficacy studies.
Liquidity and Capital Resources Since inception, we have only generated revenue and income under the CLA with BI and TCGFB Collaboration. We incurred significant net operating losses and negative cash flows from operations. Historically, we have financed our operations primarily through the sales of our equity securities and the payment received under our collaboration and license agreement.
Liquidity and Capital Resources Since inception, we have only generated revenue from licensing and research collaborations. We incurred significant operating losses and negative cash flows from operations. Historically, we have financed our operations primarily through the sales of our equity securities and the payments received under our collaboration and license agreements.
We allocate internal expenses to our clinical development candidates on a program-specific basis. The internal expenses for early-stage research and discovery programs are not allocated as our internal resources, employees and infrastructure are typically deployed across multiple programs. As such, we do not provide financial information regarding the costs incurred for early-stage research and discovery programs on a program-specific basis.
We track external expenses that are directly attributable to our clinical development candidates. We allocate internal expenses to our clinical development candidates on a program-specific basis. The internal expenses for early-stage research and discovery programs are not allocated as our internal resources, employees and infrastructure are typically deployed across multiple programs.
We anticipate that we will continue to incur net losses for the foreseeable future because of additional costs and expenses related to our research and development activities, including increased expenses from pipeline advancement and advancement of our product candidates into and through clinical developments and associated regulatory submissions, as well as increased general and administrative expenses as we scale our organization as a public company.
We anticipate that we will continue to incur net operating losses for the foreseeable future because of additional costs and expenses related to our research and development activities, including increased expenses from pipeline advancement and advancement of our product candidates into and through clinical developments and associated regulatory submissions, as well as increased general and administrative expenses related to audit, legal, regulatory, and tax-related services associated with maintaining compliance with the rules and regulations of the SEC and Nasdaq.
Unless otherwise indicated, the terms “Surrozen,” “we,” “us,” or “our” refer to Surrozen, Inc., a Delaware corporation. Overview We are discovering and developing biologic drug candidates to selectively modulate the Wnt pathway, a critical mediator of tissue repair, in a broad range of organs and tissues, for human diseases.
Unless otherwise indicated, the terms “Surrozen,” “we,” “us,” or “our” refer to Surrozen, Inc., a Delaware corporation. Overview We are a biotechnology company committed to discovering and developing product candidates to selectively modulate the Wnt pathway, a critical mediator of tissue repair.
Research and Development Expenses Since our inception, we have focused significant resources on our research and development activities. Our research and development expenses consist of external and internal expenses incurred in connection with our research activities and development programs.
Operating Expenses We classify operating expenses into two main categories: (i) research and development expenses and (ii) general and administrative expenses. Research and Development Expenses Since our inception, we have focused significant resources on our research and development activities. Our research and development expenses consist of external and internal expenses incurred in connection with our research activities and development programs.
Building upon the seminal work of our founders and scientific advisors who discovered the Wnt gene and key regulators of the Wnt pathway, we have made breakthrough discoveries that we believe will overcome previous limitations in harnessing the potential of Wnt biology. These breakthroughs enable us to rapidly and flexibly design tissue-targeted therapeutics that modulate Wnt signaling.
Building upon the seminal work of our founders and scientific advisors who discovered the Wnt gene and key regulators of the Wnt pathway, we have made breakthrough discoveries that we believe will overcome previous limitations in harnessing the potential of Wnt biology in a tissue-selective manner.
We also have entered into patent and research license arrangements with third-parties. The license agreements require milestone payments upon the achievement of certain regulatory and developmental stages. In addition, we will be required to pay royalties on sales of certain licensed products. As of December 31, 2024, we have incurred nominal fees and milestone payments under our license agreements.
The Research Collaboration Agreement was terminated effective November 13, 2025. We also have entered into patent and research license arrangements with third-parties. The license agreements require milestone payments upon the achievement of certain regulatory and developmental stages. In addition, we will be required to pay royalties on sales of certain licensed products.
Research Service Revenue – Related Party The increase of $0.7 million in research service revenue – related party for 2024, compared to 2023, is attributable to the research service performed in 2024 in accordance with TCGFB Collaboration.
Research Service Revenue – Related Party The increase of $2.8 million in research service revenue – related party for 2025, compared to 2024, is attributable to the research service performed in accordance with TCGFB Collaboration. The TCGFB Collaboration was terminated effective in November 2025.
Accordingly, the use of different market assumptions and/or different valuation techniques may have a material effect on the estimated fair value amounts, and such changes could materially impact our results of operations in future periods. 83 Emerging Growth Company Status We are an emerging growth company, or EGC, as defined in the Jumpstart Our Business Startups Act of 2012, or the JOBS Act.
Accordingly, the use of different market assumptions and/or different valuation techniques may have a material effect on the estimated fair value amounts, and such changes could materially impact our results of operations in future periods.
We believe, based on our current operating plan, that our existing cash, cash equivalents and the gross proceeds of approximately $76.4 million received from the private placement in March 2025 will be sufficient to fund our operations for at least the next 12 months from the date of this Annual Report.
We believe, based on our current operating plan, that our existing cash and cash equivalents, plus the net proceeds of $26.9 million received in January 2026 from the sale of common stock under the 2025 ATM and gross proceeds of $3.3 million from warrant exercises in February and March 2026, will be sufficient to fund our operations for at least the next 12 months from the date of the filing of this Annual Report.
General and Administrative Expenses General and administrative expenses consist primarily of personnel-related costs, including salaries, bonuses, benefits and stock-based compensation expense for personnel in executive, finance, human resources, business and corporate development, legal, information technology and other administrative functions.
Any changes in the outcome of any of these variables could mean a significant change in the costs and timing associated with the development of our product candidates. 79 General and Administrative Expenses General and administrative expenses consist primarily of personnel-related costs, including salaries, bonuses, benefits and stock-based compensation expense for personnel in executive, finance, human resources, business and corporate development, legal, information technology and other administrative functions.
Please see Note 17 to the consolidated financial statements for further information regarding this private placement.
Please see Note 8 to the consolidated financial statements for further information regarding the 2025 PIPE.
Critical Accounting Policies, Significant Judgments and Use of Estimates Our consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America, or U.S. GAAP.
As of December 31, 2025, we had not accrued for any termination or cancellation charges as these were not considered probable. 85 Critical Accounting Policies, Significant Judgments and Use of Estimates Our consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America, or U.S. GAAP.
As a result of our discoveries, we are pioneering the selective activation of Wnt signaling, designing and engineering Wnt pathway mimetics, and advancing tissue-selective Wnt candidates. Our lead product candidates are multi-specific, antibody-based therapeutics that mimic the roles of naturally occurring Wnt proteins, which are involved in activation and enhancement of the Wnt pathway, respectively.
Our lead product candidates are multi-specific, antibody-based therapeutics that mimic the roles of naturally occurring Wnt proteins, which are involved in activation and enhancement of the Wnt pathway. Wnt signaling is essential in tissue maintenance and regeneration throughout the body.
Other (Expense) Income, Net The increase of $19.7 million, or 50%, in other expense, net, for 2024, compared to 2023, is primarily attributable to a $18.0 million increase in non-cash change in fair value of warrant liabilities, and $1.5 million related to the transaction costs allocated to the warrants issued in the April 2024 private placement.
Other Expense, Net The increase of $7.0 million, or 36%, in other expense, net, for 2025, compared to 2024, is primarily attributable to a $5.0 million increase in non-cash change in fair value of warrant liabilities, a $1.3 million increase in the financing transaction costs and a $0.9 million increase in non-cash impairment charge on warrant asset.
The net change in our operating assets and liabilities was primarily due to a net decrease in accounts payable and accrued and other liabilities.
The net change in our operating assets and liabilities was primarily due to a net decrease in accounts payable, accrued and other liabilities and operating lease liabilities. Cash Used In Investing Activities Cash used in investing activities for 2025 and 2024 consisted of the purchases of lab equipment.
As of December 31, 2024, we had cash and cash equivalents of $34.6 million and accumulated deficit of $285.3 million.
As of December 31, 2025, we had cash and cash equivalents of $89.2 million and an accumulated deficit of $527.3 million.
We are party to license or subscription agreements pursuant to which we have in-licensed various intellectual property rights. The license agreements obligate us to make certain milestone payments related to achievement of specified events, as well as royalties in the low single-digit percentages based on sales of licensed products.
The license agreements obligate us to make certain milestone payments related to achievement of specified events, as well as royalties in the low single-digit percentages based on sales of licensed products. The payment obligations under the license agreements are contingent upon future events, such as our achievement of specified milestones or generating product sales.
Components of Results of Operations Revenue Collaboration and License Revenue We had not generated any revenue prior to the execution of the CLA in October 2022.
Please see “ Part I, Item I – Business – Intellectual Property - Collaboration and License Arrangements ” for a further discussion of our collaboration and license arrangements. Components of Results of Operations Revenue Collaboration and License Revenue We had not generated any revenue prior to the execution of the CLA in October 2022.
Summary of Cash Flows The following table sets forth the primary sources and uses of cash, cash equivalents and restricted cash for the periods presented below (in thousands): Year Ended December 31, 2024 2023 Net cash used in operating activities $ (17,628 ) $ (40,363 ) Net cash (used in) provided by investing activities (26 ) 51,723 Net cash provided by financing activities 16,176 276 Net (decrease) increase in cash, cash equivalents and restricted cash $ (1,478 ) $ 11,636 Cash Used in Operating Activities Cash used in operating activities of $17.6 million for 2024 was primarily due to the use of funds in our operations and the resulting net loss of $63.6 million and a net change of $0.8 million in our net operating assets and liabilities, partially offset by $46.8 million in non-cash charges.
We may also be required to sell or license to others our rights to any of our current or future product candidates or discovery programs in certain territories or indications that we would prefer to develop and commercialize ourselves. 84 Summary of Cash Flows The following table sets forth the primary sources and uses of cash, cash equivalents and restricted cash for the periods presented below (in thousands): Year Ended December 31, 2025 2024 Net cash used in operating activities $ (30,244 ) $ (17,628 ) Net cash used in investing activities (128 ) (26 ) Net cash provided by financing activities 85,052 16,176 Net increase (decrease) in cash, cash equivalents and restricted cash $ 54,680 $ (1,478 ) Cash Used In Operating Activities Cash used in operating activities of $30.2 million for 2025 was primarily due to the use of funds in our operations, and the resulting net loss of $242.0 million, partially offset by a net change of $3.2 million in our net operating assets and liabilities, and $208.6 million in non-cash charges.
We expect that our research and development expenses will increase for the foreseeable future as we identify and develop product candidates. The successful development of our product candidates is highly uncertain. At this time, we cannot reasonably estimate the nature, timing or costs required to complete the development of our lead product candidates.
At this time, we cannot reasonably estimate the nature, timing or costs required to complete the development of our lead product candidates.
Significant unobservable inputs used in the fair value measurement of such warrants include the timing and probability of achieving the milestones and the expected volatility. The fair value of the 2024 PIPE Warrants may change significantly as additional data is obtained, impacting our assumptions to estimate the fair value of the liabilities.
Significant unobservable inputs include the probability of achieving the funding milestone. The fair value of the tranche liability may change significantly as additional data is obtained, impacting our assumptions to estimate the fair value of the liabilities. In evaluating this information, considerable judgment is required to interpret the data used to develop the assumptions and estimates.
In evaluating this information, considerable judgment is required to interpret the data used to develop the assumptions and estimates.
The fair value of the warrants may change significantly as additional data is obtained, impacting our assumptions to estimate the fair value of the liabilities. In evaluating this information, considerable judgment is required to interpret the data used to develop the assumptions and estimates.
We enter into contracts in the normal course of business with third-party vendors for preclinical research studies, clinical trials, research supplies, manufacturing and other services and products for operating purposes. These contracts generally provide for termination on notice, and may or may not include cancellation fees.
As of December 31, 2025, we were unable to estimate the timing or likelihood of achieving these milestones or generating future product sales. We enter into contracts in the normal course of business with third-party vendors for preclinical research studies, clinical trials, research supplies, manufacturing and other services and products for operating purposes.
Given that the amount and timing related to such payments are uncertain, they are not considered to be contractual obligations. As of December 31, 2024, we had not accrued for any termination or cancellation charges as these were not considered probable.
These contracts generally provide for termination on notice, and may or may not include cancellation fees. Given that the amount and timing related to such payments are uncertain, they are not considered to be contractual obligations.
Cash Provided by Financing Activities Cash provided by financing activities of $16.2 million for 2024 consisted primarily of net proceeds from the issuance and sale of common stock, pre-funded warrants and warrants to investors and certain members of management in a private placement. 81 Cash provided by financing activities of $0.3 million for 2023 consisted primarily of proceeds from the issuance of common stock under the employee stock purchase plan.
Cash provided by financing activities of $16.2 million for 2024 consisted primarily of net proceeds from the issuance and sale of common stock, pre-funded warrants and warrants to investors and certain members of management in the 2024 PIPE. Contractual Obligations and Commitments As of December 31, 2025, we have lease obligations primarily consisting of one operating lease for our facility.
In each of these areas, we believe our approach has the potential to change the treatment paradigm for the disease and substantially impact patient outcomes. Our strategy is to exploit the full potential of Wnt signaling by identifying disease states responsive to Wnt modulation, design tissue-selective therapeutics, and advance candidates into clinical development in targeted indications with high unmet need.
Our strategy is to exploit the full potential of Wnt signaling by identifying disease states responsive to Wnt modulation, designing tissue-selective therapeutics, evaluating mechanisms complementary to Wnt signaling, and advancing candidates into clinical development in targeted ophthalmic indications with high unmet need. Our unique approach and platform technologies have led to the discovery and advancement of multiple product candidates.
Loss on Issuance of Common Stock, Pre-Funded Warrants and Warrants The increase of $20.4 million in loss on issuance of common stock, pre-funded warrants and warrants for 2024, compared to 2023, as the fair value of warrants issued was greater than the proceeds received in a private placement closed in April 2024.
Interest Income The increase of $1.3 million, or 78%, in interest income for 2025, compared to 2024, is due to an increase in cash and cash equivalents. 81 Loss on Issuance of Common Stock, Pre-Funded Warrants and Warrants in the 2024 PIPE Loss on issuance of common stock, pre-funded warrants and warrants in the 2024 PIPE for 2024 is a result of the fair value of warrants issued being greater than the proceeds received in the 2024 PIPE.
Upon the achievement of further regulatory and developmental milestones and the sale of licensed products, we may incur significant fees and royalties under these licenses. Please see “ Part I, Item I – Business – Intellectual Property - Collaboration and Licensing Arrangements ” for a further discussion of our collaboration and licensing arrangements.
As of December 31, 2025, we have incurred nominal fees and milestone payments under our license agreements. Upon the achievement of further regulatory and developmental milestones and the sale of licensed products, we may incur significant fees and royalties under these licenses.
Contractual Obligations and Commitments As of December 31, 2024, we have lease obligations primarily consisting of one operating lease for our facility. The lease expires in April 2029. Under the terms of our operating leases, we had lease obligations of $10.1 million in payments through 2029 as of December 31, 2024.
The lease expires in April 2029. Under the terms of our operating leases, we had lease obligations of $7.7 million in payments through 2029 as of December 31, 2025. We are party to license or subscription agreements pursuant to which we have in-licensed various intellectual property rights.
At the closing of the private placement, we received aggregate net proceeds of approximately $16.0 million, after deducting placement agent fees and other expenses. If the warrants are exercised in 79 full we will receive additional gross proceeds of approximately $175.5 million.
At the closing of the private placement, we received aggregate net proceeds of approximately $16.0 million, after deducting placement agent fees and other expenses. In March 2025, warrants to purchase up to 8,772,848 shares of common stock were cancelled. As of December 31, 2025, pre-funded warrants for 40,000 shares of common stock had been exercised.
We do not expect to generate any revenue from the sale of our products unless and until we obtain regulatory clearance or approval. 75 Operating Expenses We classify operating expenses into three main categories: (i) research and development expenses, (ii) general and administrative expenses and (iii) restructuring expenses.
Research Service Revenue – Related Party Research service revenue – related party relates to the amounts recognized for the research service performed in connection with TCGFB Collaboration. The research collaboration was terminated in November 2025. We do not expect to generate any revenue from the sale of our products unless and until we obtain regulatory clearance or approval.
General and Administrative Expenses The decrease of $0.7 million, or 5%, in general and administrative expenses for 2024, compared to 2023, is primarily attributable to reductions in employee-related expenses as a result of the workforce reductions in 2023, as well as lower consulting and professional fees as a result of the restructuring plans we implemented in 2023. 78 Restructuring The decrease of $2.8 million, or 100%, in restructuring charges for 2024, compared to 2023, is attributable to workforce reductions implemented in 2023.
General and Administrative Expenses The increase of $1.1 million, or 8%, in general and administrative expenses for 2025, compared to 2024, is primarily attributable to an increase in professional service fees.
In April 2024, we issued and sold warrants to purchase common stock in a private placement, or the 2024 PIPE Warrants. The 2024 PIPE Warrants are classified as liabilities, and the fair value is measured using the Black-Scholes option-pricing model.
The warrants are classified as liabilities, and the fair value is measured using the Black-Scholes option-pricing model. Significant unobservable inputs used in the fair value measurement of such warrants include the probability of achieving the milestones and the expected volatility.
Food and Drug Administration on or prior to October 31, 2026 of our Investigation New Drug Application for SZN-8141, or the second closing milestone, we expect to issue a (i) 6,043,321 shares of common stock, (ii) pre-funded warrants to purchase up to 2,456,500 shares of common stock, and (iii) Series E common stock warrants to purchase up to 4,249,910 shares of common stock; provided that the second tranche may not occur prior to September 27, 2026.
Assuming achievement of the Second Closing Milestone, we will issue (i) 5,741,605 shares of common stock, (ii) pre-funded warrants to purchase up to 2,456,500 shares of common stock, and (iii) Series E common stock warrants to purchase up to 4,099,052 shares of common stock for aggregate gross proceeds of approximately $95.1 million in the second tranche.
These costs consist of employee severance and other termination benefits. Interest Income Interest income consists of interest earned on our cash and cash equivalents. Other (Expense) Income, Net Other (expense) income, net primarily consists of the gain on the change in fair value of warrant liabilities.
Other Income and Expenses Interest Income Interest income consists of interest earned on our cash and cash equivalents.
The decrease of $1.2 million, or 12%, in discovery and preclinical stage program expenses for 2024, compared to 2023, is primarily due to the workforce reductions implemented in 2023 to focus our resources on our clinical stage programs.
Research and Development Expenses The increase of $8.2 million, or 39%, in research and development expenses for 2025, compared to 2024, is primarily due to a $10.2 million increase in manufacturing costs, lab expenses and consulting fees for our ophthalmology programs and a $1.2 million increase in employee-related expenses, offset by a $2.8 million decrease in clinical expenses as a result of the discontinuation of clinical development of SZN-043.
Our unique approach and platform technologies have led to the discovery and advancement of two lead product candidates. The chart below represents a summary of our product candidates: Please see “ Part I, Item I – Business ” for a further discussion of our product candidates and clinical development programs.
We believe that ophthalmology indications are particularly well-suited for Wnt modulating therapeutics due to the combination of strong genetic and biologic validation and the need for approaches to restore tissue structure and function. 76 The chart below represents a summary of our pipeline: Please see “ Part I, Item I – Business ” for a further discussion of our product candidates.