Biggest changeWe have entered into a number of additional collaborations and license agreements in other therapeutic areas, including an additional agreement with Vertex for the treatment of Duchenne muscular dystrophy and myotonic dystrophy type 1, and others to support and complement our hematopoietic stem cell, CAR T, in vivo and T1D programs and platform, including agreements with: Nkarta, Inc. to develop and commercialize products leveraging donor-derived, gene-edited CAR-NK cells; Capsida Biotherapeutics, Inc. to develop in vivo gene editing therapies delivered with engineered adeno-associated virus vectors; Roswell Park Comprehensive Cancer Center to advance a gene-edited autologous CAR T program against a new target; MaxCyte, Inc. on ex vivo delivery for our hemoglobinopathy and CAR T programs; CureVac AG on optimized mRNA constructs and manufacturing for certain in vivo programs; and KSQ Therapeutics, Inc. on intellectual property for our allogeneic immuno-oncology programs. 98 Financial Overview Since our inception in October 2013, we have devoted substantially all of our resources to our research and development efforts, identifying potential product candidates, undertaking drug discovery and preclinical development activities, building and protecting our intellectual property estate, establishing internal manufacturing capabilities, organizing and staffing our company, business planning, raising capital and providing general and administrative support for these operations.
Biggest changeFinancial Overview 101 Since our inception in October 2013, we have devoted substantially all of our resources to our research and development efforts, identifying potential product candidates, undertaking drug discovery and preclinical development activities, building and protecting our intellectual property estate, establishing internal manufacturing capabilities, organizing and staffing our company, business planning, raising capital and providing general and administrative support for these operations.
We believe that our innovative research, translational expertise, and clinical development experience, position us as a leader in the development of CRISPR-based therapeutics and may enable us to create an entirely new class of highly effective and potentially curative therapies for patients with both rare and common diseases for whom current biopharmaceutical approaches have had limited success.
We believe that our innovative research, translational expertise, and clinical development experience, position us as a leader in the development of CRISPR-based therapeutics and may enable us to create an entirely new class of highly effective and potentially curative therapies for patients with both common and rare diseases for whom current biopharmaceutical approaches have had limited success.
Research and development expenses Research and development expenses consist primarily of costs incurred for our research activities, including our product discovery efforts and the development of our product candidates, which include: • employee-related expenses, including salaries, benefits and equity-based compensation expense; • costs of services performed by third parties that conduct research and development and preclinical activities on our behalf; • costs of purchasing lab supplies and non-capital equipment used in our preclinical activities and in manufacturing preclinical study materials, as well as supplies and materials used to manufacture clinical drug material; • consultant fees; • facility costs, including rent, depreciation and maintenance expenses; and • fees and other payments related to acquiring and maintaining licenses under our third-party licensing agreements.
Research and Development Expenses Research and development expenses consist primarily of costs incurred for our research activities, including our product discovery efforts and the development of our product candidates, which include: • employee-related expenses, including salaries, benefits and equity-based compensation expense; • costs of services performed by third parties that conduct research and development and preclinical and clinical activities on our behalf; • costs of purchasing lab supplies and non-capital equipment used in our preclinical activities and in manufacturing preclinical study materials, as well as supplies and materials used to manufacture clinical drug material; • consultant fees; • facility costs, including rent, depreciation and maintenance expenses; and • fees and other payments related to acquiring and maintaining licenses under certain of our third-party licensing agreements.
This is due to the numerous risks and uncertainties associated with developing such product candidates, including the uncertainty of: • successful completion of preclinical studies and IND-enabling studies; • successful enrollment in, and completion of, clinical trials; • receipt of marketing approvals from applicable regulatory authorities; • establishing commercial manufacturing capabilities or making arrangements with third-party manufacturers; • obtaining and maintaining patent and trade secret protection and non-patent exclusivity; 99 • launching commercial sales of the product, if and when approved, whether alone or in collaboration with others; • acceptance of the product, if and when approved, by patients, the medical community and third-party payors; • effectively competing with other therapies and treatment options; • a continued acceptable safety profile following approval; • enforcing and defending intellectual property and proprietary rights and claims; and • achieving desirable medicinal properties for the intended indications.
This is due to the numerous risks and uncertainties associated with developing such product candidates, including the uncertainty of: • successful completion of preclinical studies and IND-enabling studies; • successful enrollment in, and completion of, clinical trials; • receipt of marketing approvals from applicable regulatory authorities; • establishing commercial manufacturing capabilities or making arrangements with third-party manufacturers; • obtaining and maintaining patent and trade secret protection and non-patent exclusivity; • launching commercial sales of the product, if and when approved, whether alone or in collaboration with others; 102 • acceptance of the product, if and when approved, by patients, the medical community and third-party payors; • effectively competing with other therapies and treatment options; • a continued acceptable safety profile following approval; • enforcing and defending intellectual property and proprietary rights and claims; and • achieving desirable medicinal properties for the intended indications.
In accruing service fees, we estimate the time period over which services will be performed and the level of effort to be expended in each period and adjust accordingly. Recent Accounting Pronouncements Refer to Note 2 of the notes to our consolidated financial statements included in this Annual Report on Form 10-K for a discussion of recent accounting pronouncements.
In accruing service fees, we estimate the time period over which services will be performed and the level of effort to be expended in each period and adjust accordingly. Recent Accounting Pronouncements Refer to Note 2 of the notes to the consolidated financial statements included in this Annual Report on Form 10-K for a discussion of recent accounting pronouncements.
Funding Requirements Our primary uses of capital are, and we expect will continue to be, research and development activities, manufacturing activities, compensation and related expenses, laboratory and related supplies, legal and other regulatory expenses, patent prosecution filing, defense and intellectual property maintenance costs, and general overhead costs, including costs associated with operating as a public company.
Funding Requirements Our primary uses of capital are, and we expect will continue to be, research and development activities, manufacturing activities, compensation and related expenses, laboratory and related supplies, legal and other regulatory expenses, patent prosecution filing, defense and intellectual property maintenance costs, business development activities and general overhead costs, including costs associated with operating as a public company.
CASGEVY is the first therapy to emerge from our strategic partnership with Vertex and is being advanced under a joint development and commercialization agreement between us and Vertex and certain of its affiliates. In 2023, CASGEVY became the first-ever approved CRISPR-based gene-editing therapy in the world.
CASGEVY is the first therapy to emerge from our strategic partnership with Vertex and is being advanced under a joint development and commercialization agreement between us and Vertex and certain of its affiliates. 99 In 2023, CASGEVY became the first-ever approved CRISPR-based gene-editing therapy in the world.
CASGEVY safety data presented to date is generally consistent with an autologous stem cell transplant and myeloablative conditioning. Efficacy data presented to date support the profile of this therapy as a potential one-time functional cure for people with severe SCD and TDT.
Overall, CASGEVY safety data presented to date is generally consistent with an autologous stem cell transplant and myeloablative conditioning. Efficacy data presented to date support the profile of this therapy as a potential one-time functional cure for people with severe SCD and TDT.
We anticipate that our expenses will increase as we continue our current research programs and development activities; seek to identify additional research programs and additional product candidates; conduct initial drug application supporting preclinical studies and initiate clinical trials for our product candidates; initiate preclinical testing and clinical trials for any other product candidates we identify and develop; seek regulatory approval for our product candidates; maintain, defend, protect and expand our intellectual property estate; further develop our gene editing platform; hire additional research, clinical and scientific personnel; incur facilities costs associated with such personnel growth; continue to develop internal manufacturing capabilities and infrastructure; and incur additional costs associated with operating as a public company.
We anticipate that our expenses will increase as we continue our current research programs and development activities; seek to identify additional research programs and additional product candidates; conduct initial drug application supporting preclinical studies and initiate clinical trials for our product candidates; pursue business development activities; initiate preclinical testing and clinical trials for any other product candidates we identify and develop; seek regulatory approval for our product candidates; maintain, defend, protect and expand our intellectual property estate; further develop our gene editing platform; hire additional research, clinical and scientific personnel; incur facilities costs associated with such personnel growth; continue to develop internal manufacturing capabilities and infrastructure; and incur additional costs associated with operating as a public company.
While our significant accounting policies are described in more detail in the notes to our financial statements included elsewhere in this Annual Report on Form 10-K, we believe that the following accounting policies are the most critical to aid you in fully understanding and evaluating our financial condition and results of operations. 100 Revenue Accounting Standards Codification Topic 606, Revenue from Contracts with Customers , or ASC 606, applies to all contracts with customers, except for contracts that are within the scope of other standards, such as leases and collaboration arrangements.
While our significant accounting policies are described in more detail in the notes to our financial statements included elsewhere in this Annual Report on Form 10-K, we believe that the following accounting policies are the most critical to aid you in fully understanding and evaluating our financial condition and results of operations. 103 Revenue Accounting Standards Codification Topic 606, Revenue from Contracts with Customers , or ASC 606, applies to all contracts with customers, except for contracts that are within the scope of other standards, such as leases and collaboration arrangements.
Amounts related to contingent milestone payments are not considered contractual obligations as they are contingent on the successful achievement of certain development, regulatory approval and commercial milestones, which may not be achieved.
Amounts related to contingent milestone payments are not considered contractual obligations as they are contingent on the successful achievement of certain development, regulatory 109 approval and commercial milestones, which may not be achieved.
Financing Activities Net cash provided by financing activities for the year ended December 31, 2024 was $332.0 million and primarily consisted of net proceeds of approximately $279.0 million from the issuance of common shares in connection with our registered direct offering, net proceeds of approximately $31.2 million from stock option exercises, and net proceeds of approximately $21.7 million from the issuance of common shares in connection with our 2021 ATM.
Net cash provided by financing activities for the year ended December 31, 2024 primarily consisted of net proceeds of approximately $279.0 million from the issuance of common shares in connection with our registered direct offering, net proceeds of approximately $31.2 million from stock option exercises, and net proceeds of approximately $21.7 million from the issuance of common shares in connection with our 2021 ATM.
We have not included these commitments on our balance sheet because the achievement and timing of these milestones is not fixed and determinable. 106
We have not included these commitments on our balance sheet because the achievement and timing of these milestones is not fixed and determinable.
In 2017, Vertex exercised its option to co-develop and co-commercialize the hemoglobinopathies program and we entered into a joint development and commercialization agreement with Vertex, which we amended and restated in 2021, pursuant to which, among other things, we are co-developing and co-commercializing CASGEVY for TDT and SCD. Diabetes .
In 2017, Vertex exercised its option to co-develop and co-commercialize the hemoglobinopathies program and we entered into a joint development and commercialization agreement with Vertex, which we amended and restated in 2021, pursuant to which, among other things, we are co-developing and co-commercializing CASGEVY for TDT and SCD. siRNA.
As a result of many factors, including those factors set forth in the "Risk Factors" section of this Annual Report on Form 10-K, our actual results could differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis. Overview Our mission is to create transformative gene-based medicines for serious human diseases.
As a result of many factors, including those factors set forth in the “Risk Factors” section of this Annual Report on Form 10-K, our actual results could differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis. Overview Our mission is to create transformative gene-based medicines for serious human diseases.
Accordingly, the elements of the collaboration agreements that represent activities in which both parties are active participants and to which both parties are exposed to the 101 significant risks and rewards that are dependent on the commercial success of the activities, are recorded as collaborative arrangements.
Accordingly, the elements of the collaboration agreements that represent activities in which both parties are active participants and to which both parties are exposed to the 104 significant risks and rewards that are dependent on the commercial success of the activities, are recorded as collaborative arrangements.
Any deferred amounts are only payable to Vertex as an offset against future profitability of the CAGEVY program and the amounts payable are capped at a specified maximum amount per year. Deferred costs associated with the CASGEVY program have not been recognized as of December 31, 2024 because a reasonable estimate of future payments against future profitability cannot be made.
Any deferred amounts are only payable to Vertex as an offset against future profitability of the CASGEVY program and the amounts payable are capped at a specified maximum amount per year. Deferred costs associated with the CASGEVY program have not been recognized as of December 31, 2025 because a reasonable estimate of future payments against future profitability cannot be made.
Sources of Liquidity Cash Flows Discussions of 2022 items and year-to-year comparisons between 2023 and 2022 that are not included in this Annual Report on Form 10-K can be found in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” Part II, Item 7 of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 filed with the SEC on February 21, 2024.
Sources of Liquidity Cash Flows Discussions of 2024 items and year-to-year comparisons between 2024 and 2023 that are not included in this Annual Report on Form 10-K can be found in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” Part II, Item 7 of our Annual Report on Form 10-K for the fiscal year ended December 31, 2024 filed with the SEC on February 11, 2025.
Discussions of 2022 items and year-to-year comparisons between 2023 and 2022 that are not included in this Annual Report on Form 10-K can be found in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” Part II, Item 7 of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 filed with the SEC on February 21, 2024.
Discussions of 2024 items and year-to-year comparisons between 2024 and 2023 that are not included in this Annual Report on Form 10-K can be found in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” Part II, Item 7 of our Annual Report on Form 10-K for the fiscal year ended December 31, 2024 filed with the SEC on February 11, 2025.
Collaboration revenue for the year ended December 31, 2024 was related to Vertex's achievement of a $10.0 million research milestone and $25.0 million research milestone under the Non-Ex License Agreement with Vertex in the fourth quarter of 2024.
Collaboration revenue was $35.0 million for the year ended December 31, 2024 and was related to Vertex’s achievement of a $10.0 million research milestone and $25.0 million research milestone under the Non-Ex License Agreement with Vertex in 2024.
Results of Operations The following is a discussion of the components of results of operations. This section generally discusses 2024 and 2023 items and year-to-year comparisons between 2024 and 2023.
Results of Operations The following is a discussion of the components of results of operations. This section generally discusses 2025 and 2024 items and year-to-year comparisons between 2025 and 2024.
In addition, we anticipate ongoing expenses related to the reimbursements of third-party patent related expenses in connection with certain of our in-licensed intellectual property. Collaboration expense, net Collaboration expense, net, consists of operating expenses related to the CASGEVY program under our collaboration with Vertex.
In addition, we anticipate ongoing expenses related to the reimbursements of third-party patent related expenses in connection with certain of our in-licensed intellectual property. Collaboration Expense, Net Collaboration expense, net, consists of operating expenses under our collaboration with Vertex for the hemoglobinopathies program.
We and Vertex continue to investigate CASGEVY, including (1) three clinical trials designed to assess the safety and efficacy of a single dose of CASGEVY in patients 12 to 35 years of age with severe SCD and TDT, respectively, (2) two clinical trials in patients 5 to 11 years of age, one in severe SCD and a second in TDT, and (3) long-term follow-up clinical trials designed to follow participants for up to 15 years after CASGEVY infusion.
We and Vertex continue to investigate CASGEVY, including in clinical trials designed to assess the safety and efficacy of a single dose of CASGEVY in patients 12 to 35 years of age with severe SCD and TDT, respectively, two pivotal trials in patients 5 to 11 years of age, one in severe SCD and a second in TDT, and long-term follow-up clinical trials designed to follow participants for up to 15 years after CASGEVY infusion.
Refer to Note 8 of the notes to our consolidated financial statements included in this Annual Report on Form 10-K for a description of revenue recognized related to Vertex. Grant Revenue Grant revenue was $2.3 million and $1.2 million, respectively, for the years ended December 31, 2024 and 2023.
Refer to Note 8 of the notes to the consolidated financial statements included in this Annual Report on Form 10-K for a description of revenue recognized related to Vertex. Grant Revenue Grant revenue was $3.5 million and $2.3 million, respectively, for the years ended December 31, 2025 and 2024.
Revenue recognition We have not generated any revenue to date from sales of any wholly owned product. During the years ended December 31, 2024, 2023 and 2022, we recognized $35.0 million, $370.0 million and $0.4 million, respectively, of collaboration revenue, which is primarily related to our collaboration and license agreements with Vertex.
Revenue Recognition We have not generated any revenue to date from sales of any wholly-owned product. No collaboration revenue was recognized for the year ended December 31, 2025. During the years ended December 31, 2024 and 2023, we recognized $35.0 million and $370.0 million, respectively, of collaboration revenue, which is primarily related to our collaboration and license agreements with Vertex.
CAR T We believe CRISPR/Cas9 has the potential to create the next generation of CAR T cell therapies that may have a superior product profile and allow broader patient access compared to current autologous therapies.
CAR T We believe CRISPR/Cas9 has the potential to create the next generation of CAR T cell therapies that may have a superior product profile and allow broader patient access compared to current autologous therapies. We are advancing cell therapy programs for autoimmune indications and oncology.
Liquidity and Capital Resources Sources of Liquidity We have predominantly incurred losses and cumulative negative cash flows from operations since our inception. As of December 31, 2024, we had $1,903.8 million in cash, cash equivalents and marketable securities, of which approximately $53.8 million was held outside of the United States, and an accumulated deficit of $1,366.0 million.
Liquidity and Capital Resources Sources of Liquidity We have predominantly incurred losses and cumulative negative cash flows from operations since our inception. As of December 31, 2025, we had $1,975.8 million in cash, cash equivalents and marketable securities, of which approximately $103.4 million was held outside of the United States, and an accumulated deficit of $1,947.6 million.
In 2015, we partnered with Vertex and entered into a strategic collaboration, option and license agreement, which focused on the discovery and development of gene-based treatments for hemoglobinopathies and cystic fibrosis using CRISPR/Cas9 gene-editing technology.
For additional information regarding certain of these partnerships, please see “ Business—Strategic Partnerships and Collaborations .” Hemoglobinopathies. In 2015, we partnered with Vertex and entered into a strategic collaboration, option and license agreement, which focused on the discovery and development of gene-based treatments for hemoglobinopathies and cystic fibrosis using CRISPR/Cas9 gene-editing technology.
We have advanced this technology from discovery to an approved medicine with unparalleled speed, culminating in the landmark first approval of a CRISPR-based therapy, CASGEVY (exagamglogene autotemcel [exa-cel]), in 2023 with our collaborators at Vertex Pharmaceuticals Incorporated, or Vertex.
CRISPR/Cas9 is a revolutionary technology for gene editing, the process of precisely altering specific sequences of genomic DNA. We have advanced this technology from discovery to an approved medicine with unparalleled speed, culminating in the landmark first approval of a CRISPR-based therapy, CASGEVY (exagamglogene autotemcel [exa-cel]), in 2023 with our collaborators at Vertex Pharmaceuticals Incorporated, or Vertex.
We continue to innovate on our platform to develop next-generation technologies that can enable new therapies. Through our efforts, we aim to unlock the full potential of CRISPR-based therapeutics to create medicines that can transform people's lives.
We continue to innovate on our platform to develop next-generation technologies that can enable new therapies. We are developing other technologies, including delivery technologies and other gene editing technologies, like SyNTase. Through our efforts, we aim to unlock the full potential of gene-based therapeutics to create medicines that can transform people’s lives.
Future contractual payments on operating lease and sublease obligations due within one year of December 31, 2024 are $29.4 million, and future contractual payments on operating lease and sublease obligations due greater than one year from December 31, 2024 are $265.2 million.
Future contractual payments on operating lease and sublease obligations due within one year of December 31, 2025 are $29.7 million, and future contractual payments on operating lease and sublease obligations due greater than one year from December 31, 2025 are $235.9 million.
Other income, net Other income, net, was $103.9 million for the year ended December 31, 2024, compared to $71.8 million for the year ended December 31, 2023. The increase in other income, net, was primarily due to an increase in interest income earned on cash, cash equivalents and marketable securities for the year ended December 31, 2024.
Other Income, Net Other income, net, was $86.6 million for the year ended December 31, 2025, compared to $103.9 million for the year ended December 31, 2024. The decrease in other income, net, was primarily due to a decrease in interest income earned on cash, cash equivalents and marketable securities for the year ended December 31, 2025.
To date, CASGEVY has been approved in the United States, European Union, Great Britain, Canada, Switzerland, Kingdom of Saudi Arabia, Kingdom of 96 Bahrain and the United Arab Emirates for the treatment of eligible patients 12 years and older with SCD or TDT.
To date, CASGEVY has been approved in the United States, European Union, Great Britain, Canada, Switzerland and certain countries in the Middle East for the treatment of eligible patients 12 years and older with SCD or TDT.
The following table provides information regarding our cash flows for each of the periods below: Years Ended December 31, 2024 2023 (in thousands) Net cash used in operating activities $ (142,774 ) $ (260,375 ) Net cash (used in) provided by investing activities (280,481 ) 374,647 Net cash provided by financing activities 331,984 62,664 Effect of exchange rate changes on cash (21 ) 73 (Decrease) increase in cash and restricted cash $ (91,292 ) $ 177,009 Operating Activities Net cash used in operating activities was $142.8 million for the year ended December 31, 2024, compared to net cash used in operating activities of $260.4 million for the year ended December 31, 2023.
The following table provides information regarding our cash flows for each of the periods below: Years Ended December 31, 2025 2024 (in thousands) Net cash used in operating activities $ (345,014 ) $ (142,774 ) Net cash used in investing activities (31,805 ) (280,481 ) Net cash provided by financing activities 426,026 331,984 Effect of exchange rate changes on cash 95 (21 ) Increase (decrease) in cash and restricted cash $ 49,302 $ (91,292 ) Operating Activities Net cash used in operating activities was $345.0 million for the year ended December 31, 2025, compared to net cash used in operating activities of $142.8 million for the year ended December 31, 2024.
An additional $0.3 million of stamp taxes related to this amount was paid in 2023. In 2024, we issued and sold 0.4 million common shares at an average price of $55.81 per share for aggregate proceeds of $21.7 million, which were net of equity issuance costs of $0.3 million.
In 2024, we issued and sold 0.4 million common shares under the 2021 ATM at an average price of $55.81 per share for aggregate proceeds of $21.7 million, which were net of equity issuance costs of $0.3 million, excluding stamp taxes of $0.2 million.
Our first in vivo programs target the liver, taking advantage of validated LNP delivery technologies, and aim to treat diseases where we can produce a strong therapeutic effect by safely disrupting a gene with well-understood genetic association.
In Vivo Liver Editing We have established a leading platform for in vivo gene editing and are rapidly advancing a pipeline of in vivo gene editing candidates that target the liver, taking advantage of validated lipid nanoparticle, or LNP, delivery technologies, and aim to treat diseases where we can produce a strong therapeutic effect by safely disrupting a gene with well-understood genetic association.
We believe that several accounting policies are important to understanding our historical and future performance. We refer to these policies as critical because these specific areas generally require us to make judgments and estimates about matters that are uncertain at the time we make the estimate, and different estimates—which also would have been reasonable—could have been used.
We refer to these policies as critical because these specific areas generally require us to make judgments and estimates about matters that are uncertain at the time we make the estimate, and different estimates—which also would have been reasonable—could have been used. On an ongoing basis, we evaluate our estimates and judgments, including those described in greater detail below.
Other income (net) Other income, net consists primarily of interest income earned on investments. Critical Accounting Policies and Significant Judgments and Estimates This discussion and analysis of our financial condition and results of operations is based on our financial statements, which we have prepared in accordance with U.S. generally accepted accounting principles.
Critical Accounting Policies and Significant Judgments and Estimates This discussion and analysis of our financial condition and results of operations is based on our financial statements, which we have prepared in accordance with U.S. generally accepted accounting principles. We believe that several accounting policies are important to understanding our historical and future performance.
In 2022, the sale of common shares pursuant to the 2019 Sales Agreement and the applicable prospectus supplement was not significant. In 2023, we issued and sold 0.5 million common shares at an average price of $72.32 per share for aggregate proceeds of $32.7 million, which were net of equity issuance costs of $0.4 million.
In 2023, we issued and sold 0.5 million common shares under the 2021 ATM at an average price of $72.32 per share for aggregate proceeds of $32.7 million, which were net of equity issuance costs of $0.4 million, excluding stamp taxes of $0.3 million.
Research and Development Expenses Research and development expenses were $320.7 million for the year ended December 31, 2024, compared to $387.3 million for the year ended December 31, 2023.
Research and Development Expenses Research and development expenses were $284.8 million for the year ended December 31, 2025, compared to $310.2 million for the year ended December 31, 2024.
At-the-Market Offerings In August 2019, we entered into an Open Market Sale Agreement SM with Jefferies under which we were able to offer and sell, from time to time at our sole discretion through Jefferies, as our sales agent, our common shares, par value of CHF 0.03 per share, or the August 2019 Sales Agreement.
At-the-Market Offerings (ATM) We entered into an Open Market Sale Agreement SM , or the Sales Agreement, with Jefferies LLC under which we, at our sole discretion, are able to offer and sell, from time to time at prevailing market prices, our common shares.
Most of our programs are still in early stages of development and the outcome of our efforts is uncertain, and we cannot estimate the actual amounts necessary to successfully complete the development, manufacture and commercialization of any current or future product candidates, if approved, or whether, or when, we may achieve profitability.
Most of our programs are still in early stages of research and development and the outcome of our efforts is uncertain, and we cannot estimate the actual amounts necessary to successfully complete the development, manufacture and commercialization of any current or future product candidates, if approved, or whether, or when, we may achieve profitability. 108 Until such time as we can generate substantial product revenues, if ever, we expect to finance our cash needs through a combination of equity financings, debt financings and payments received in connection with our collaboration and license agreements.
CRISPR-X While we have made significant progress with our current portfolio of programs, we recognize that we need to continue to innovate to unlock the full power of gene editing and bring potentially transformative therapies to even more patients. We have a dedicated early-stage research team called CRISPR-X that focuses on innovating next-generation editing modalities.
Next-generation Editing Modalities While we have made significant progress with our current portfolio of programs, we recognize that we may be able to bring transformative therapies to even more patients by continuing to innovate to unlock the full potential of gene editing. We are focused on innovating next-generation editing modalities.
Investing Activities Net cash used in investing activities for the year ended December 31, 2024 was $280.5 million and consisted primarily of purchases of marketable securities in excess of maturities of marketable securities of $255.4 million.
Investing Activities Net cash used in investing activities for the year ended December 31, 2025 was $31.8 million, compared to net cash used in investing of $280.5 million for the year ended December 31, 2024.
For additional information about our revenue recognition policy, see Note 2 and Note 8 of the notes to our audited consolidated financial statements included in this Annual Report on Form 10-K.
For the years ended December 31, 2025, 2024 and 2023, we generated $3.5 million, $2.3 million and $1.2 million, respectively, of grant revenue related to certain contracts with not-for-profit entities. For additional information about our revenue recognition policy, see Note 2 and Note 8 of the notes to the consolidated financial statements included in this Annual Report on Form 10-K.
As of December 31, 2024, we have common shares having aggregate gross proceeds up to $363.7 million remaining under our current prospectus supplement, and we have issued and sold an aggregate of 1.9 million common shares at an average price of $122.73 per share for aggregate proceeds of $233.2 million, which were net of equity issuance costs of $3.1 million, excluding stamp taxes.
As of December 31, 2025, we issued and sold an aggregate of 8.0 million common shares under the 2021 ATM at an average price of $74.77 per share for aggregate proceeds of $592.2 million, which were net of equity issuance costs of $7.8 million, excluding stamp taxes of $5.9 million.
CRISPR-X is developing technologies to enable whole gene correction and insertion via non-viral DNA delivery and all-RNA systems, without requiring homology-directed repair or viral delivery of DNA. Partnerships Given the numerous potential therapeutic applications for CRISPR/Cas9, we have partnered strategically to broaden the indications we can pursue and accelerate development of programs by accessing specific technologies and/or disease-area expertise.
Partnerships Given the numerous potential therapeutic applications for CRISPR/Cas9, we have partnered strategically to broaden the indications we can pursue and accelerate development of programs by accessing specific technologies and/or disease-area expertise. We maintain broad partnerships to develop gene editing-based therapeutics in specific disease areas.
As a result, we may face difficulties raising capital through sales of our common shares or such sales may be on unfavorable terms. In 105 addition, a recession, depression or other sustained adverse market event could materially and adversely affect our business and the value of our common shares.
As a result, we may face difficulties raising capital through sales of our common shares or such sales may be on unfavorable terms.
Net cash provided by financing activities for the year ended December 31, 2023 was $62.7 million and consisted of net proceeds of $32.7 million from the issuance of common shares and net proceeds of approximately $29.9 million from stock option exercises.
Net cash provided by financing activities for the year ended December 31, 2025 consisted primarily of net proceeds of approximately $397.3 million from the sale of common shares issued in connection with our 2021 ATM and 2025 ATM, in the aggregate, as well as net proceeds of approximately $27.7 million from stock option exercise proceeds.
In 2024, 2023 and 2022, we exercised our option to defer specified costs on the CASGEVY program in excess of the deferral limit under A&R Vertex JDCA, as amended, resulting in deferred costs of $102.8 million, $80.9 million and $36.1 million, respectively.
In 2024, we exercised our option to defer specified costs under the CASGEVY program in excess of the $110.3 million deferral limit under the A&R Vertex JDCA, as amended. The increase of approximately $92.8 million in collaboration expense, net, was primarily attributable to reaching the deferral limit in 2024, as no such limit was applicable in 2025.
It is being investigated in an ongoing clinical trial designed to assess the safety and efficacy of the product candidate in adult patients with relapsed or refractory B-cell malignancies who have received at least two prior lines of therapy, as well as an ongoing clinical trial in adult patients with systemic lupus erythematosus, systemic sclerosis, and inflammatory myositis.
Zugo-cel continues to advance in both autoimmune disease and hematologic malignancies. 100 In autoimmune disease, it is being investigated in an ongoing clinical trial designed to assess the safety and efficacy of the product candidate in adult patients with systemic lupus erythematosus, or SLE, systemic sclerosis, and inflammatory myositis, and a second clinical trial in immune thrombocytopenia purpura and warm autoimmune hemolytic anemia.
We have established a portfolio of therapeutic programs spanning four core franchises: hemoglobinopathies, CAR T, in vivo approaches and type 1 diabetes.
We are a leading biopharmaceutical company focused on the development of CRISPR-based therapeutics, including by using CRISPR/Cas9 technology. We have established a portfolio of therapeutic programs spanning four core franchises: hemoglobinopathies, in vivo approaches, CAR T, and regenerative medicine.
CTX310 is being investigated in an ongoing clinical trial targeting ANGPTL3 in patients with heterozygous familial hypercholesterolemia, homozygous familial hypercholesterolemia, mixed dyslipidemias, or severe hypertriglyceridemia.
Our in vivo portfolio includes cardiovascular programs, such as CTX310, directed towards angiopoietin-related protein 3 or ANGPTL3, which is currently in an ongoing Phase 1b clinical trial in patients with heterozygous familial hypercholesterolemia, homozygous familial hypercholesterolemia, mixed dyslipidemias, or severe hypertriglyceridemia.
Under the A&R Vertex JDCA, as amended, we have an option to defer our portion of specified costs on the CASGEVY program in excess of $110.3 million for the years ended December 31, 2022, 2023 and 2024.
Other obligations Under the A&R Vertex JDCA, as amended, for 2022, 2023 and 2024, the Company had an option to defer a portion of its share of costs if spending on the CASGEVY program exceeded specified amounts, which the Company exercised in each such year, resulting in deferred costs of $221.8 million, in the aggregate.
Additional Financings In February 2024, we entered into an investment agreement for the sale of approximately $280.0 million of our common shares 104 to a group of institutional investors in a registered direct offering, at a price per share of $71.50. We received net proceeds of $279.0 million, excluding stamp taxes due of $2.8 million.
Share Issuance Agreement with Sirius Therapeutics As described in Note 8 of the notes to the consolidated financial statements included in this Annual Report on Form 10-K, we and Sirius entered into a share issuance agreement and we registered and issued 1,842,105 common shares to Sirius, nominal value CHF 0.03 per share, at an issue price of $38.00 per share as partial consideration for entering into the Sirius Agreement. 107 Additional Financings In February 2024, we entered into an investment agreement for the sale of approximately $280.0 million of our common shares to a group of institutional investors in a registered direct offering, at a price per share of $71.50.
The following table summarizes our research and development expenses for the years ended December 31, 2024 and 2023, together with the changes in those items in dollars (in thousands): Years Ended December 31, Period to Period 2024 2023 Change External research and development expenses $ 90,614 $ 130,124 $ (39,510 ) Employee related expenses 76,029 83,316 (7,287 ) Facility expenses 98,003 105,875 (7,872 ) Stock-based compensation expenses 47,944 46,356 1,588 Other expenses 2,019 2,703 (684 ) Sublicense and license fees 6,044 18,958 (12,914 ) Total research and development expenses $ 320,653 $ 387,332 $ (66,679 ) The decrease of approximately $66.7 million was primarily attributable to the following: • $39.5 million of decreased external research and development costs, primarily associated with a decrease in variable external research and manufacturing costs; • $12.9 million of decreased sublicense and license fees, primarily attributable to a decrease in research and development licenses and milestones due to strategic partners; • $7.9 million of decreased facility expenses primarily driven by lower laboratory-related costs; and • $7.3 million of decreased employee-related expenses. 103 General and administrative expenses General and administrative expenses were $73.0 million for the year ended December 31, 2024, compared to $76.2 million for the year ended December 31, 2023.
The following table summarizes our research and development expenses for the years ended December 31, 2025 and 2024, together with the changes in those items in dollars (in thousands): Years Ended December 31, Period to Period 2025 2024 Change External research and development expenses $ 76,629 $ 80,197 $ (3,568 ) Employee related expenses 63,786 76,029 (12,243 ) Facility expenses 92,381 98,003 (5,622 ) Stock-based compensation expenses 34,374 47,944 (13,570 ) Other expenses 1,225 2,019 (794 ) Sublicense and license fees 16,411 6,044 10,367 Total research and development expenses $ 284,806 $ 310,236 $ (25,430 ) The decrease of approximately $25.4 million was primarily attributable to the following: • $25.8 million of decreased employee-related expenses, including stock-based compensation expenses, primarily driven by decreased headcount; • $5.6 million of decreased facility expenses primarily driven by lower laboratory-related costs; • $3.6 million of decreased external research and development costs, primarily associated with a decrease in variable external research and manufacturing costs; offset by • $10.4 million of increased sublicense and license fees, primarily attributable to costs incurred related to a contingent liability as of December 31, 2025, as described in Note 9 of the notes to the consolidated financial statements included in this Annual Report on Form 10-K.
In connection with the August 2019 Sales Agreement, as amended, we have filed several prospectus supplements with the SEC to offer and sell, from time to time, common shares. We filed our current prospectus supplement for $378.6 million in August 2024.
The following are in connection with the Sales Agreement. 2021 ATM In January 2021, we filed a prospectus supplement with the SEC to offer and sell, from time to time, common shares having aggregate gross proceeds of up to $600.0 million, or, together with the subsequent prospectus supplements filed in July 2021 and August 2024 relating to the common shares remaining under the original prospectus supplement, the 2021 ATM.
Comparison of Years Ended December 31, 2024 and 2023 The following table summarizes our results of operations for the years ended December 31, 2024 and 2023, together with the dollar change in those items: 102 Years Ended December 31, Period to 2024 2023 Period Change (in thousands) Revenue: Collaboration revenue $ 35,000 $ 370,000 $ (335,000 ) Grant revenue 2,314 1,206 1,108 Total revenue 37,314 371,206 (333,892 ) Operating expenses: Research and development 320,653 387,332 (66,679 ) General and administrative 72,977 76,162 (3,185 ) Collaboration expense, net 110,250 130,250 (20,000 ) Total operating expenses 503,880 593,744 (89,864 ) Loss from operations (466,566 ) (222,538 ) (244,028 ) Other income, net 103,901 71,816 32,085 Net loss before income taxes (362,665 ) (150,722 ) (211,943 ) Provision for income taxes (3,587 ) (2,888 ) (699 ) Net loss $ (366,252 ) $ (153,610 ) $ (212,642 ) Collaboration Revenue Collaboration revenue was $35.0 million for the year ended December 31, 2024, compared to $370.0 million for the year ended December 31, 2023.
Comparison of Years Ended December 31, 2025 and 2024 The following table summarizes our results of operations for the years ended December 31, 2025 and 2024, together with the dollar change in those items: Years Ended December 31, Period to 2025 2024 Period Change (in thousands) Revenue: Collaboration revenue $ — $ 35,000 $ (35,000 ) Grant revenue 3,510 2,314 1,196 Total revenue 3,510 37,314 (33,804 ) Operating expenses: Research and development 284,806 310,236 (25,430 ) 105 Acquired in-process research and development 96,253 — 96,253 General and administrative 73,542 72,977 565 Collaboration expense, net 213,480 120,667 92,813 Total operating expenses 668,081 503,880 164,201 Loss from operations (664,571 ) (466,566 ) (198,005 ) Other income, net 86,606 103,901 (17,295 ) Net loss before income taxes (577,965 ) (362,665 ) (215,300 ) Provision for income taxes (3,634 ) (3,587 ) (47 ) Net loss $ (581,599 ) $ (366,252 ) $ (215,347 ) Collaboration Revenue No collaboration revenue was recognized for the year ended December 31, 2025.
Net cash provided by investing activities for the year ended December 31, 2023 was $374.6 million and consisted primarily of maturities of marketable securities in excess of purchases of marketable securities of $386.6 million.
The decrease in net cash used in investing activities was primarily a result of the net purchase position for marketable debt securities for the year ended December 31, 2024, compared to a net maturity position for marketable debt securities for the year ended December 31, 2025.
We have three parallel efforts to achieve this goal: (1) CTX211, an allogeneic, gene-edited, hypoimmune, stem cell derived product candidate in a device that is implanted into patients and intended to produce insulin in a glucose-dependent manner, and which is in an ongoing clinical trial; (2) CTX213, a research stage deviceless beta cell replacement product candidate consisting of unencapsulated precursor islet cells derived from edited stem cells; and (3) we have granted a non-exclusive license to certain of our CRISPR/Cas9 intellectual property to Vertex to accelerate Vertex’s development of hypoimmune cell therapies for T1D in exchange for certain milestones and royalties.
In addition, we have granted a non-exclusive license to certain of our CRISPR/Cas9 intellectual property to Vertex to accelerate Vertex’s development of hypoimmune cell therapies for T1D in exchange for certain milestones and royalties.
The decrease of $3.2 million was primarily attributable to decreased employee-related expenses and consulting and professional services-related expenses. Collaboration expense, net Collaboration expense, net, was $110.3 million for the year ended December 31, 2024, compared to $130.3 million for the year ended December 31, 2023.
General and Administrative Expenses General and administrative expenses were $73.5 million for the year ended December 31, 2025, compared to $73.0 million for the year ended December 31, 2024. 106 Collaboration Expense, Net Collaboration expense, net, was $213.5 million for the year ended December 31, 2025, compared to $120.7 million for the year ended December 31, 2024.
Refer to Note 8 of the notes to our consolidated financial statements included in this Annual Report on Form 10-K for a description of revenue recognized related to Vertex.
The $96.3 million acquired in-process research and development expense is attributable to the costs incurred upon entering the Sirius Agreement during the second quarter of 2025, as described in Note 8 of the notes to the consolidated financial statements included in this Annual Report on Form 10-K.