MeiraGTx Holdings plc

Previous wording

We are a vertically integrated, clinical-stage gene therapy company with a broad pipeline of late stage clinical programs supported by end-to-end manufacturing capabilities. We have an internally developed manufacturing platform process, internal plasmid production for GMP, two GMP viral vector production facilities as well as an in-house Quality Control hub for stability and release, all fit for IND through commercial supply. We have core capabilities in viral vector design and optimization and a potentially transformative riboswitch gene regulation platform technology that allows for the precise, dose-responsive control of gene expression by oral small molecules. We are focusing the riboswitch platform on delivery of metabolic peptides including GLP-1, GIP, glucagon and PYY using oral small molecules, as well as cell therapy for oncology and autoimmune diseases. Although initially focusing on the eye, central nervous system, and salivary gland, we have developed the technology to apply genetic medicine to more common diseases, increasing efficacy, addressing novel targets, and expanding access in some of the largest disease areas where the unmet need remains great.

Current wording

commercial supply. In addition, we have developed a proprietary manufacturing platform with leading yield and quality aspects and commercial readiness. Our core capabilities in viral vector and capsid optimization allow increased potency, decreased dose and significantly reduced cost of goods for our genetic medicines. We have developed a potentially transformative gene regulation platform using bespoke synthetic riboswitch technology invented in-house that allows for the precise, dose-responsive control of any transgene under the control of oral small molecules. We are focusing the riboswitch platform onin vivo delivery of biologic therapeutics such as the metabolic peptides GLP-1, GIP, glucagon, amylin, PYY and leptin via oral small molecules, as well as cell therapy for oncology and autoimmune diseases, and long-term intractable pain. We have developed unique comprehensive technology capabilities to apply genetic medicine to more common diseases, increasing efficacy, addressing novel targets, and expanding access in some of the largest disease areas where the unmet need remains high.

Previous wording

We are an exempted company incorporated under the laws of the Cayman Islands in 2018, and prior to that, we commenced operations as MeiraGTx Limited, a private limited company incorporated under the laws of England and Wales in 2015. Our discussion of our financial condition and results of operations is based upon our financial statements, which have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”). Since our formation, we have devoted substantially all of our resources to developing our technology platform, establishing our viral vector manufacturing facilities and our GMP plasmid and DNA production facility and developing manufacturing processes, advancing the product candidates in our ophthalmology, salivary gland and neurodegenerative disease programs, building our intellectual property portfolio, organizing and staffing our company, developing our business plan, raising capital, and providing general and administrative support for these operations. To date, we have financed our operations primarily with cash on hand and proceeds from the sales of our Series A ordinary shares, Convertible Preferred C Shares and ordinary shares, debt financing and upfront and milestone payments in connection with the Collaboration Agreement and Asset Purchase Agreement. Through December 31, 2023, we received gross proceeds of approximately $562.9 million from sales of our ordinary shares, Series A ordinary shares and convertible preferred C shares, gross proceeds of approximately $75.0 million from issuance of debt, $130.0 million from the Collaboration Agreement with Janssen, and $65.0 million from the Asset Purchase Agreement with Janssen. As of December 31, 2023, we had cash, cash equivalents and restricted cash of $130.6 million, as well as $10.1 million we expect to receive from Janssen in the first quarter of 2024 in connection with the Collaboration Agreement.

Current wording

We are an exempted company incorporated under the laws of the Cayman Islands in 2018, and prior to that, we commenced operations as MeiraGTx Limited, a private limited company incorporated under the laws of England and Wales in 2015. Our discussion of our financial condition and results of operations is based upon our financial statements, which have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”). Since our formation, we have devoted substantially all of our resources to developing our technology platform, establishing our viral vector manufacturing facilities and our GMP plasmid and DNA production facility and developing manufacturing processes, advancing the product candidates in our ophthalmology, salivary gland and neurodegenerative disease programs, building our intellectual property portfolio, organizing and staffing our company, developing our business plan, raising capital, and providing general and administrative support for these operations. To date, we have financed our operations primarily with cash on hand and proceeds from the sales of our Series A ordinary shares, Convertible Preferred C Shares and ordinary shares, debt financing and upfront and milestone payments in connection with the Collaboration Agreement and Asset Purchase Agreement. Through December 31, 2024, we received gross proceeds of approximately $622.3 million from sales of our ordinary shares, Series A ordinary shares and convertible preferred C shares, gross proceeds of approximately $75.0 million from issuance of debt, $130.0 million from the Collaboration Agreement with Johnson & Johnson Innovative Medicine, and $125.0 million from the Asset Purchase Agreement with Johnson & Johnson Innovative Medicine. As of December 31, 2024, we had cash, cash equivalents and restricted cash of $105.7 million, as well as $0.7 million we expect to receive from Johnson & Johnson Innovative Medicine in the first quarter of 2025 in connection with the PPQ and transition services we provided to Johnson & Johnson Innovative Medicine.

Previous wording

We are a clinical stage company and have not generated any product revenues to date. We have ongoing clinical development programs and a broad pipeline of preclinical programs. Since inception, we have incurred significant operating losses. Our net losses for the years ended December 31, 2023 and 2022 were $84.0 million and $129.6 million, respectively. As of December 31, 2023, we had an accumulated deficit of $554.2 million. We do not expect to generate revenue from sales of products for several years, if at all. Under the Collaboration Agreement, we received an upfront payment in the amount of $100.0 million in March 2019 and a milestone payment in the amount of $30.0 million in December 2021. Additionally, pursuant to the Collaboration Agreement, we received research and development funding for certain research, manufacturing and clinical development costs. On December 20, 2023, we entered into an Asset Purchase Agreement with Janssen pursuant to which the Company sold and assigned to Janssen a License Agreement between the Company and UCLB relating to the research, development, manufacture and exploitation of the RPGR Product, and other related assets as described in the Asset Purchase Agreement. In connection with entering into the Asset Purchase Agreement, we entered into a Termination Agreement with Janssen terminating the Collaboration Agreement. The Company and Janssen also entered into a Supply Agreement on December 20, 2023 pursuant to which the Company agreed to manufacture and supply the RPGR Product for Janssen. In December 2023, we received a non-refundable upfront payment of $65.0 million in connection with the Asset Purchase Agreement.

Current wording

We are a clinical stage company and have not generated any product revenues to date. We have ongoing clinical development programs and a broad pipeline of preclinical programs. Since inception, we have incurred significant operating losses. Our net losses for the years ended December 31, 2024 and 2023 were $147.8 million and $84.0 million, respectively. As of December 31, 2024, we had an accumulated deficit of $702.0 million. We do not expect to generate revenue from sales of products unless and until we successfully initiate and complete clinical development and obtain regulatory approval for any product candidates, or satisfy our third party obligations. Under the Collaboration Agreement, we received an upfront payment in the amount of $100.0 million in March 2019 and a milestone payment in the amount of $30.0 million in December 2021. Additionally, pursuant to the Collaboration Agreement, we received research and development funding for certain research, manufacturing and clinical development costs. On December 20, 2023, we entered into an Asset Purchase Agreement with Johnson & Johnson Innovative Medicine pursuant to which the Company sold and assigned to Johnson & Johnson Innovative Medicine a License Agreement between the Company and UCLB relating to the research, development, manufacture and exploitation of the RPGR Product, and other related assets as described in the Asset Purchase Agreement. In connection with entering into the Asset Purchase Agreement, we entered into a Termination Agreement with Johnson & Johnson Innovative Medicine terminating the Collaboration Agreement. The Company and Johnson & Johnson Innovative Medicine also entered into a Supply Agreement on December 20, 2023 pursuant to which the Company agreed to manufacture and supply the RPGR Product for Johnson & Johnson Innovative Medicine. In December 2023, we received a non-refundable upfront payment of $65.0 million in connection with the Asset Purchase Agreement. During the year ended December 31, 2024, we received $60.0 million in milestone payments under the Asset Purchase Agreement.

Previous wording

for AAV-GAD for the treatment of Parkinson’s disease. We also incurred expenses during the year ended December 31, 2023 and expect to continue to incur expenses related to research activities in additional therapeutic areas to expand our pipeline, developing our potentially transformative gene regulation technology, hiring additional personnel as needed in manufacturing, research, clinical operations, quality and other functional areas, and associated cash and share-based compensation expense, as well as the further development of internal manufacturing capabilities and capacity and other associated costs including the management of our intellectual property portfolio.

Current wording

Our total operating expenses were $197.5 million and $151.1 million for the years ended December 31, 2024 and 2023, respectively. We expect to continue incurring increasing costs associated with our clinical activities for AAV-hAQP1 for the treatment of radiation-induced xerostomia and xerostomia associated with Sjogren’s syndrome, AAV-GAD for the treatment of Parkinson’s disease, as well as costs associated with the delivery of services under the Asset Purchase and related agreements. We also incurred expenses during the year ended December 31, 2024 and expect to continue to incur expenses related to research activities in additional therapeutic areas to expand our pipeline, developing our potentially transformative gene regulation technology, hiring additional personnel as needed in manufacturing, research, clinical operations, quality and other functional areas, and associated cash and share-based compensation expense, as well as the further development of internal manufacturing capabilities and capacity and other associated costs including the management of our intellectual property portfolio.

Previous wording

On December 20, 2023, we entered into an Asset Purchase Agreement with Janssen pursuant to which the Company sold and assigned to Janssen a License Agreement between the Company and UCLB relating to the research, development, manufacture and exploitation of the RPGR Product, and other related assets as described in the APA. In connection with entering into the Asset Purchase Agreement, we entered into a Termination Agreement with Janssen terminating the Collaboration Agreement. The Company and Janssen also entered into a Supply Agreement on December 20, 2023 pursuant to which we agreed to manufacture and supply the RPGR Product for Janssen. Under the Asset Purchase Agreement, Janssen paid the Company a non-refundable upfront cash payment of $65.0 million in December 2023 and a milestone payment of $50.0 million in the first quarter of 2024 in connection with the achievement of the initiation of the extension study for the Phase 3 LUMEOS clinical trial for the RPGR Product.

Current wording

On December 20, 2023, we entered into an Asset Purchase Agreement with Johnson & Johnson Innovative Medicine pursuant to which the Company sold and assigned to Johnson & Johnson Innovative Medicine a License Agreement between the Company and UCLB relating to the research, development, manufacture and exploitation of the RPGR Product, and other related assets as described in the APA. In connection with entering into the Asset Purchase Agreement, we entered into a Termination Agreement with Johnson & Johnson Innovative Medicine terminating the Collaboration Agreement. The Company and Johnson & Johnson Innovative Medicine also entered into a Supply Agreement on December 20, 2023 pursuant to which we agreed to manufacture and supply the RPGR Product for Johnson & Johnson Innovative Medicine. Under the Asset Purchase Agreement, Johnson & Johnson Innovative Medicine paid the Company a non-refundable upfront cash payment of $65.0 million in December 2023. Additionally, pursuant to and subject to the terms and conditions set forth in the Asset Purchase Agreement, Johnson & Johnson Innovative Medicine agreed to pay the Company future contingent consideration of up to an aggregate of $350.0 million, as follows: (i) a milestone payment of $50.0 million in connection with the achievement of the initiation of the extension study for the Phase 3 LUMEOS clinical trial for the RPGR Product; (ii) $10.0 million upon completion of certain specified development services for the drug substance for the RPGR Product; (iii) $5.0 million upon completion of certain specified development services for the drug product for the RPGR Product; (iv) $175.0 million upon the first commercial sale of an RPGR Product in the United States; (v) $75.0 million upon the first commercial sale of an RPGR Product in at least one of the United Kingdom, France, Germany, Spain and Italy; (vi) $25.0 million upon completion of the transfer of certain manufacturing technology for drug substance and drug product from the Company to Johnson & Johnson Innovative Medicine; and (vii) $10.0 million upon regulatory approval of a Johnson & Johnson Innovative Medicine-selected manufacturing facility in each of the United States and European Union for commercial manufacture of the RPGR Product. As of December 31, 2024, we have received $60.0 million in milestone payments from Johnson & Johnson Innovative Medicine. Johnson & Johnson Innovative Medicine is also responsible for any royalty or milestone amounts that become payable on the RPGR Product under the UCLB RPGR License Agreement.

Previous wording

Based on our cash, cash equivalents and accounts receivable – related party at December 31, 2023 and the near-term milestone payments we have received and expect to receive under the Asset Purchase Agreement, we estimate that such funds will be sufficient to enable us to fund our operating expenses and capital expenditure requirements into the first quarter of 2026. This estimate does not include the $285.0 million in milestones we are eligible to receive under the Asset Purchase Agreement upon first commercial sale of an RPGR Product in the United States and in at least one of the United Kingdom, France, Germany, Spain and Italy, for completion of the transfer of certain manufacturing technology to Janssen and upon regulatory approval of a Janssen-selected manufacturing facility in each of the United States and European Union for commercial manufacture of the RPGR Product. We have based these estimates on assumptions that may prove to be wrong, and we may use our available capital resources sooner than we currently expect. See “Liquidity and Capital Resources.” Because of the numerous risks and uncertainties associated with the development of our product candidates, any future product candidates, our platform and technology and because the extent to which we may enter into collaborations with third parties for development of any of our product candidates is unknown, we are unable to estimate the amounts of increased capital outlays and operating expenses associated with completing the research and development of our product candidates.

Current wording

Based on our cash, cash equivalents, accounts receivable – related party and tax incentive receivable at December 31, 2024, together with the proceeds from the anticipated closing of the strategic collaboration with Hologen Ltd, we estimate that such funds will be sufficient to enable us to fund our operating expenses and capital expenditure requirements into 2027 and to repay our debt obligation of $75.0 million to Perceptive (due in August 2026). This estimate does not include the $285.0 million in milestones we are eligible to receive under the Asset Purchase Agreement upon first commercial sale of an RPGR Product in the United States and in at least one of the United Kingdom, France, Germany, Spain and Italy, for completion of the transfer of certain manufacturing technology to Johnson & Johnson Innovative Medicine and upon regulatory approval of a Johnson & Johnson Innovative Medicine-selected manufacturing facility in each of the United States and European Union for commercial manufacture of the RPGR Product. We have based these estimates on assumptions that may prove to be wrong, and we may use our available capital resources sooner than we currently expect. See “Liquidity and Capital Resources.” Because of the numerous risks and uncertainties associated with the development of our product candidates, any future product candidates, our platform and technology and because the extent to which we may enter into collaborations with third parties for development of any of our product candidates is unknown, we are unable to estimate the amounts of increased capital outlays and operating expenses associated with completing the research and development of our product candidates.

Previous wording

Adequate additional funds may not be available to us on acceptable terms, or at all. To the extent that we raise additional capital through the sale of equity or convertible securities, your ownership interest will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect your rights as a shareholder. Any future debt financing or preferred equity or other financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends and may require the issuance of warrants, which could potentially dilute your ownership interests.

Current wording

Adequate additional funds may not be available to us on acceptable terms, or at all. To the extent that we raise additional capital through the sale of equity or convertible securities, your ownership interest will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect your rights as a shareholder. Any future debt financing or preferred equity or other financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital

Previous wording

AAV-AIPL1 Specials License in UK:

Current wording

AAV-AIPL1 Specials License in the UK:

Previous wording

Our operating expenses since inception have consisted primarily of general and administrative costs and research and development costs.

Current wording

Our operating expenses since inception have consisted primarily of general and administrative costs and research and development costs. Beginning in 2024, we incurred expenses classified as cost of service revenue – related party performed in connection with the Asset Purchase Agreement and related agreements.

Previous wording

We have incurred and expect to continue to incur increased expenses associated with being a public company, including costs of accounting, audit, legal, regulatory and tax-related services associated with maintaining compliance with Nasdaq and SEC requirements; director and officer insurance costs; and investor and public relations costs.

Current wording

We have incurred and expect to continue to incur increased expenses associated with being a public company, including costs of accounting, audit, legal, regulatory and tax-related services associated with maintaining compliance with Nasdaq and SEC requirements; director and officer insurance costs; maintaining and protecting our intellectual property portfolio; and investor and public relations costs.

Previous wording

Research and development activities are central to our business model. We expect to continue incurring increasing research and development costs associated with our clinical activities for AAV-hAQP1 for the treatment of radiation-induced xerostomia and xerostomia associated with Sjogren’s syndrome, as well as for AAV-GAD for the treatment of Parkinson’s disease. In addition, we expect to continue to incur expenses related to research activities in additional therapeutic areas to expand our pipeline and developing our potentially transformative gene regulation technology.

Current wording

Research and development activities are central to our business model. We expect to continue incurring increasing research and development costs associated with our clinical activities for AAV-hAQP1 for the treatment of radiation-induced xerostomia and xerostomia associated with Sjogren’s syndrome, as well as for AAV-GAD for the treatment of Parkinson’s disease. In addition, we expect to continue to incur expenses related to research activities in additional therapeutic areas to expand our pipeline and develop our potentially transformative gene regulation technology.

Previous wording

Our consolidated financial statements are presented in U.S. dollars, which is our reporting currency. The financial position and results of operations of our subsidiaries MeiraGTx UK II Limited, MeiraGTx Ireland DAC, MeiraGTx Netherlands B.V., MeiraGTx B.V. and MeiraGTx Belgium are measured using the foreign subsidiaries’ local currency as the functional currency. These entities’ cash accounts holding U.S. dollars and intercompany payables and receivables are remeasured based upon the exchange rate at the date of remeasurement with the resulting gain or loss included in the consolidated statement of operations and comprehensive loss.

Current wording

Our consolidated financial statements are presented in U.S. dollars, which is our reporting currency. The financial position and results of operations of our subsidiaries are measured using the foreign subsidiaries’ local currency as the functional currency, either the pound sterling or the euro. These entities’ cash accounts holding U.S. dollars and intercompany payables and receivables are remeasured based upon the exchange rate at the date of remeasurement with the resulting gain or loss included in the consolidated statement of operations and comprehensive loss.

Previous wording

The gain on sale of nonfinancial assets was $54.2 million for the year ended December 31, 2023 compared to $0 for the year ended December 31, 2022. This increase was a result of the recognition of the value allocated to the nonfinancial assets sold and assigned to Janssen including the UCLB RPGR License Agreement relating to the research, development, manufacture and exploitation of the RPGR Product, and other related assets pursuant to the APA, net of carrying value.

Current wording

The gain on sale of nonfinancial assets represents the value allocated to the nonfinancial assets sold and assigned to Johnson & Johnson Innovative Medicine including the UCLB RPGR License Agreement relating to the research, development, manufacture and exploitation of the RPGR Product, and other related assets pursuant to the Asset Purchase Agreement, net of carrying value.

Previous wording

We evaluate our collaborative arrangements pursuant to Accounting Standards Codification (“ASC”) 808,Collaborative Arrangements (“ASC 808”) and ASC 606,Revenue from Contracts with Customers (“ASC 606”). We consider the nature and contractual terms of collaborative arrangements and assess whether the arrangement involves a joint operating activity pursuant to which we are an active participant and are exposed to significant risks and rewards with respect to the arrangement. If we are an active participant and exposed to significant risks and rewards with respect to the arrangement, we account for the arrangement as a collaboration under ASC 808. To date, we have entered into two separate collaboration agreements, both of which are with Janssen, which were determined to be within the scope of ASC 808.

Current wording

We evaluate our collaborative arrangements pursuant to Accounting Standards Codification (“ASC”) 808,Collaborative Arrangements (“ASC 808”) and ASC 606,Revenue from Contracts with Customers (“ASC 606”). We consider the nature and contractual terms of collaborative arrangements and assess whether the arrangement involves a joint operating activity pursuant to which we are an active participant and are exposed to significant risks and rewards with respect to the arrangement. If we are an active participant and exposed to significant risks and rewards with respect to the arrangement, we account for the arrangement as a collaboration under ASC 808.

Previous wording

ASC 808 does not address recognition or measurement matters related to collaborative arrangements. Payments between participants pursuant to a collaborative arrangement that are within the scope of other authoritative accounting literature on income statement classification are accounted for using the relevant provisions of that literature. If we conclude that some or all aspects of the arrangement are within the scope of ASC 808 and do not represent a transaction with a customer, we recognize our allocation of the shared costs incurred with respect to the jointly conducted activities pursuant to ASC 730,Research and Development. If we concluded that some or all aspects of the arrangement represent a transaction with a customer, we account for those aspects of the arrangement within the scope of ASC 606. If the payments are not within the scope of other authoritative accounting literature, the income statement classification for the payments is based on an analogy to authoritative accounting literature or if there is no appropriate analogy, a reasonable, rational and consistently applied accounting policy election. Payments received from a collaboration partner to which

Current wording

ASC 808 does not address recognition or measurement matters related to collaborative arrangements. Payments between participants pursuant to a collaborative arrangement that are within the scope of other authoritative accounting literature on income statement classification are accounted for using the relevant provisions of that literature. If we conclude that some or all aspects of the arrangement are within the scope of ASC 808 and do not represent a transaction with a customer, we recognize our allocation of the shared costs incurred with respect to the jointly conducted activities pursuant to ASC 730,Research and Development (“ASC 730”). If we concluded that some or all aspects of the arrangement represent a transaction with a customer, we account for those aspects of the arrangement within the scope of ASC 606. If the payments are not within the scope of other authoritative accounting literature, the income statement classification for the payments is based on an analogy to authoritative accounting literature or if there is no appropriate analogy, a reasonable, rational and consistently applied accounting policy election. Payments received from a collaboration partner to which this policy applies may include upfront payments in respect of a license of intellectual property, development and commercialization-based milestones, and royalties.

Previous wording

We determine transaction prices based on the amount of consideration we expect to receive for transferring the promised goods or services in the contract. Consideration may be fixed, variable, or a combination of both. At contract inception for arrangements that include variable consideration, we estimate the probability and extent of consideration we expect to receive under the contract utilizing either the most likely amount method or expected amount method, whichever best estimates the amount expected to be received. We then consider any constraints on the variable

Current wording

We determine transaction prices based on the amount of consideration we expect to receive for transferring the promised goods or services in the contract. Consideration may be fixed, variable, or a combination of both. At contract inception for arrangements that include variable consideration, we estimate the probability and extent of consideration we expect to receive under the contract utilizing either the most likely amount method or expected amount method, whichever best estimates the amount expected to be received. We then consider any constraints on the variable consideration and include in the transaction price variable consideration to the extent it is deemed probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved.

Previous wording

We record amounts as accounts receivable when the right to consideration is deemed unconditional. When consideration is received, or such consideration is unconditionally due, from a customer prior to transferring goods or services to the customer under the terms of a contract, a contract liability is recorded as deferred revenue.

Current wording

We record amounts as contract assets when the right to consideration is deemed unconditional. Contract assets are reclassified as accounts receivable once billed. When consideration is received, or such consideration is unconditionally due, from a customer prior to transferring goods or services to the customer under the terms of a contract, a contract liability is recorded as deferred revenue.

Previous wording

Amounts received prior to satisfying the revenue recognition criteria are recognized as deferred revenue in our consolidated balance sheet. Amounts expected to be recognized as revenue within the 12 months following the balance sheet date are classified as deferred revenue – related party, current. Amounts not expected to be recognized as revenue within the 12 months following the balance sheet date are classified as deferred revenue – related party.

Current wording

sheet date are classified as deferred revenue – related party, current. Amounts not expected to be recognized as revenue within the 12 months following the balance sheet date are classified as deferred revenue – related party.

Previous wording

Our ordinary shares were not traded on a public exchange prior to our IPO in June 2018. Therefore, we believe that our future volatility will differ materially during the expected term from the volatility that would be calculated from our historical share prices to date. Consequently, expected volatility is based on an analysis of our Company and guideline companies in accordance with ASC 718. The expected dividend yield is zero as we have never paid dividends and do not currently anticipate paying any in the foreseeable future. Risk-free interest rates are based on quoted U.S. Treasury rates for securities with maturities approximating the option’s expected term.

Current wording

Expected volatility is based on an analysis of our Company and guideline companies in accordance with ASC 718. The expected dividend yield is zero as we have never paid dividends and do not currently anticipate paying any in the foreseeable future. Risk-free interest rates are based on quoted U.S. Treasury rates for securities with maturities approximating the option’s expected term.

Previous wording

The Company grants restricted share units (“RSUs”) to employees, non-employee members of our board of directors and non-employee consultants as compensation for services performed. Awards of RSUs are accounted for in accordance with ASC 718,Compensation -Stock Compensation, or ASC 718*.* ASC 718 requires all share-based payments, including grants of RSUs, to be recognized in the consolidated statement of operations and comprehensive loss based on their grant date fair values. The grant date fair value of RSUs is determined using the closing market price of the Company’s ordinary shares on the date of grant.

Current wording

The Company grants restricted share units (“RSUs”) to employees, non-employee members of our board of directors and non-employee consultants as compensation for services performed. Awards of RSUs are accounted for in accordance with ASC 718*.* ASC 718 requires all share-based payments, including grants of RSUs, to be recognized in

Previous wording

Manufacturing expenses represent the costs to manufacture clinical trial material, including payroll, facilities, manufacturing supplies, raw materials, quality control and quality assurance. Upon completion of the manufacture of a batch of clinical trial material, the standard cost of manufacturing the batch of clinical trial material is charged to the clinical programs. A year to date true-up of the standard batch cost has been reflected in the fourth quarter.

Current wording

Manufacturing expenses represent the costs to manufacture clinical trial material, including payroll, facilities, manufacturing supplies, raw materials, quality control and quality assurance. Upon completion of the manufacture of a batch of clinical trial material, the standard cost of manufacturing the batch of clinical trial material is charged to the clinical programs.

Previous wording

Research and development expenses for the year ended December 31, 2023 were $103.8 million, compared to $85.7 million for the year ended December 31, 2022. The increase of $18.1 million was primarily due to an increase of $15.4 million in clinical trial expenses primarily related to the bota-vec and AAV-hAQP1 programs, $14.0 million of manufacturing costs, $3.1 million of other research and development expenses and a decrease of $2.1 million in research funding provided under the Collaboration Agreement with Janssen. These increases were partially offset by a decrease of $16.6 million in expenses related to our preclinical programs primarily related to preclinical ocular diseases in the year ended December 31, 2023 compared to the year ended December 31, 2022.

Current wording

Research and development expenses for the year ended December 31, 2024 were $119.5 million, compared to $103.8 million for the year ended December 31, 2023. The increase of $15.7 million was primarily due to an increase in manufacturing costs of $3.2 million, preclinical expenses of $1.2 million and a reduction in reimbursements from Johnson & Johnson Innovative Medicine of $70.4 million as the reimbursement for the year ended December 31, 2023 was in connection with research funding provided under the Collaboration Agreement, which was terminated on December 20, 2023. These increases were partially offset by a decrease of $55.3 million in clinical trial expenses primarily related to bota-vec as Johnson & Johnson Innovative Medicine is now primarily funding the research and development related to this program as a result of the Asset Purchase Agreement and $3.8 million of other research and development expenses.

Previous wording

Interest income was $2.3 million for the year ended December 31, 2023 compared to $0.8 million for the year ended December 31, 2022. The increase was due to higher interest rates and cash balances during 2023.

Current wording

Interest income was $4.1 million for the year ended December 31, 2024 compared to $2.3 million for the year ended December 31, 2023. The increase was due to higher interest rates and cash balances during 2024.

Previous wording

Since our inception, we have incurred significant operating losses. For the year ended December 31, 2023, we used $105.4 million in cash flows from operations. We did not generate positive cash flows from operations during the year and there are no assurances that we will generate positive cash flows in the future. Additionally, there are no assurances that we will be successful in obtaining an adequate level of financing for the development and commercialization of our product candidates. We expect to incur significant expenses and operating losses for the foreseeable future as we advance the preclinical and clinical development of our product candidates. We expect that our research and development and general and administrative costs will increase in connection with conducting preclinical studies and clinical trials for our product candidates, building out internal capacity to have products manufactured to support preclinical studies and clinical trials as well as to manufacture commercial products, expanding our intellectual property portfolio, and providing general and administrative support for our operations. As a result of these incurred and expected expenses we will need additional capital to fund our operations, which we may obtain from additional equity or debt financings, collaborations, licensing arrangements, or other sources.

Current wording

Since our inception, we have incurred significant operating losses. For the year ended December 31, 2024, we used $104.5 million in cash flows from operations. We did not generate positive cash flows from operations during the year and there are no assurances that we will generate positive cash flows in the future. Additionally, there are no assurances that we will be successful in obtaining an adequate level of financing for the development and commercialization of our product candidates. We expect to incur significant expenses and operating losses for the foreseeable future as we advance the preclinical and clinical development of our product candidates. We expect that our research and development and general and administrative costs will increase in connection with conducting preclinical studies and clinical trials for our product candidates, building out internal capacity to have products manufactured to support preclinical studies and clinical trials as well as to manufacture commercial products, expanding our intellectual property portfolio, and providing general and administrative support for our operations. As a result of these incurred and expected expenses we will need additional capital to fund our operations, which we may obtain from additional equity or debt financings, collaborations, licensing arrangements, or other sources.

Previous wording

We do not currently have any approved products and have never generated any revenue from product sales. We have historically financed our operations primarily through cash on hand and proceeds from the sale of our ordinary shares, series A ordinary shares and convertible preferred C shares. In March 2019 and December 2021, we received a $100.0 million upfront payment and a $30.0 million milestone payment, respectively, in connection with the Collaboration Agreement, which also provided us with research funding, and we were eligible to receive additional potential milestone payments and royalties. On December 20, 2023, we entered into an Asset Purchase Agreement with Janssen pursuant to which the Company sold and assigned to Janssen a License Agreement between the Company and UCLB relating to the research, development, manufacture and exploitation of the RPGR Product, and other related assets as described in the Asset Purchase Agreement. In connection with entering into the Asset Purchase Agreement, we entered into a Termination Agreement with Janssen terminating the Collaboration Agreement. The Company and Janssen also entered into a Supply Agreement on December 20, 2023 pursuant to which the Company agreed to manufacture and supply the RPGR Product for Janssen. In December 2023, we received a non-refundable upfront payment of $65.0 million in connection with the Asset Purchase Agreement, and in the first quarter of 2024 we received a milestone payment of $50.0 million in connection with the achievement of the initiation of the extension study for the Phase 3 LUMEOS clinical trial for the RPGR Product.

Current wording

We do not currently have any approved products and have never generated any revenue from product sales. We have historically financed our operations primarily through cash on hand and proceeds from the sale of our ordinary shares, series A ordinary shares and convertible preferred C shares and upfront and milestone payments from

Previous wording

The Notes Purchase Agreement provides for the issuance of the Tranche 1 Notes in an initial amount of $75.0 million. Pursuant to the First Consent and Amendment, we may request in our sole discretion, and Perceptive has agreed to subscribe to purchase upon such request, the issuance of the Tranche 2 Notes in an additional amount of $25.0 million at any time before August 2, 2024. Previously, our request for the issuance of the Tranche 2 Notes was to be determined at Perceptive’s sole discretion. The Notes Purchase Agreement matures on August 2, 2026 and is interest-only during the term. We have the option to redeem outstanding principal notes at any time along with an applicable early redemption fee. Outstanding amounts under the Notes Purchase Agreement bear interest at a fluctuating rate per annum equal to 10.00% plus the secured overnight financing rate administered by the Federal Reserve Bank of New York for a one-month tenor, subject to a 1.00% floor.

Current wording

The Notes Purchase Agreement provides for the issuance of the Tranche 1 Notes in an initial amount of $75.0 million. Pursuant to the First Consent and Amendment, we were able to request, in our sole discretion, and Perceptive agreed to subscribe to purchase upon such request, the issuance of the Tranche 2 Notes in an additional amount of $25.0 million at any time before August 2, 2024 subject to the terms of the Notes Purchase Agreement. Previously, our request for the issuance of the Tranche 2 Notes was to be determined at Perceptive’s sole discretion. The Notes Purchase Agreement matures on August 2, 2026 and is interest-only during the term. We have the option to redeem outstanding principal notes at any time along with an applicable early redemption fee. Under each of the First Consent and Amendment and the Second Consent and Amendment, the Notes Purchase Agreement was amended to increase the applicable early redemption fee. Outstanding amounts under the Notes Purchase Agreement bear interest at a fluctuating rate per annum equal to 10.00% plus the secured overnight financing rate administered by the Federal Reserve Bank of New York for a one-month tenor, subject to a 1.00% floor.

Previous wording

estimate that we will be able to fund our operating expenses and capital expenditure requirements into the first quarter of 2026. This estimate does not include the $285.0 million in milestones we are eligible to receive under the Asset Purchase Agreement upon first commercial sale of an RPGR Product in the United States and in at least one of the United Kingdom, France, Germany, Spain and Italy, for completion of the transfer of certain manufacturing technology to Janssen and upon regulatory approval of a Janssen-selected manufacturing facility in each of the United States and European Union for commercial manufacture of the RPGR Product. We have based these estimates on assumptions that may prove to be wrong, and we could utilize our available capital resources sooner than we expect.

Current wording

Based on our current cash, cash equivalents, accounts receivable – related party, and tax incentive receivable at December 31, 2024, together with the proceeds from the anticipated closing of the strategic collaboration with Hologen Ltd, we estimate that we will be able to fund our operating expenses and capital expenditure requirements into 2027 and to repay our debt obligation of $75.0 million to Perceptive (due in August 2026). This estimate does not include the $285.0 million in milestones we are eligible to receive under the Asset Purchase Agreement upon first commercial sale of an RPGR Product in the United States and in at least one of the United Kingdom, France, Germany, Spain and Italy,

Previous wording

We had $130.6 million and $115.5 million of cash, cash equivalents, and restricted cash as of December 31, 2023 and 2022, respectively.

Current wording

We had $105.7 million and $130.6 million of cash, cash equivalents, and restricted cash as of December 31, 2024 and 2023, respectively.

Previous wording

During the year ended December 31, 2022, our cash used in operating activities of $73.1 million was primarily due to our net loss of $129.6 million as we incurred expenses associated with research activities on our clinical programs, manufacturing of our clinical trial materials, preclinical research programs and general and administrative expenses. The net loss included non-cash charges of $46.9 million, which consisted of $28.6 million of share-based compensation, $9.5 million of a foreign currency loss, $8.7 million of depreciation and amortization, $0.4 million of a fair value downward adjustment, $0.2 million of negative net change in right-of-use assets and liabilities, $0.2 million of amortization of interest on asset retirement obligations and $0.4 million of amortization of the debt discount. Additionally, operating assets, consisting of accounts receivable-related party, prepaid expenses, tax incentive receivable, other current assets and other assets, decreased by $5.2 million and operating liabilities, consisting of accounts payable, accrued expenses, and deferred revenue-related party, decreased by $4.4 million.

Current wording

During the year ended December 31, 2024, our cash used in operating activities of $104.5 million was primarily due to our net loss of $147.8 million as we incurred expenses associated with research activities on our clinical programs, manufacturing of our clinical trial materials, preclinical research programs and general and administrative expenses. The net loss included net non-cash income and expense of $13.6 million, which consisted primarily of $25.2 million of share-based compensation, $12.8 million of depreciation and amortization, $2.9 million of a foreign currency loss and $1.3 million of non-cash interest, which was partially offset by $28.4 million of a gain on sale of nonfinancial assets and $0.2 million of a gain on termination of lease liabilities. Additionally, operating assets, consisting of accounts receivable – related party, contract assets – related party, prepaid expenses, tax incentive receivable, other current assets, inventory and other assets, net, decreased by $6.2 million and operating liabilities, consisting of accounts payable, accrued expenses, other current liabilities and deferred revenue – related party, increased by $23.5 million.

Previous wording

During the year ended December 31, 2023, our cash used in operating activities of $105.4 million was primarily due to our net loss of $84.0 million as we incurred expenses associated with research activities on our clinical programs, manufacturing of our clinical trial materials, preclinical research programs and general and administrative expenses. The net loss included net non-cash gains of $20.4 million, which consisted of $54.2 million of a gain on sale of nonfinancial assets, $27.7 million of share-based compensation, $13.7 million of depreciation and amortization, $9.3 million of a foreign currency gain, $1.1 million of amortization of the debt discount, $1.1 million impairment related to acquired in-process research and development and right-of-use assets, $0.5 million of a fair value upward adjustment, $0.2 million of net change in right-of-use assets and liabilities and $0.2 million of amortization of interest on asset retirement obligations. Additionally, operating assets, consisting of accounts receivable-related party, prepaid expenses, tax incentive receivable, other current assets and other assets, decreased by $6.0 million and operating liabilities, consisting of accounts payable, accrued expenses, and deferred revenue-related party, decreased by $6.9 million.

Current wording

During the year ended December 31, 2023, our cash used in operating activities of $105.4 million was primarily due to our net loss of $84.0 million as we incurred expenses associated with research activities on our clinical programs, manufacturing of our clinical trial materials, preclinical research programs and general and administrative expenses. The net loss included net non-cash income and expense of $20.4 million, which consisted primarily of $27.7 million of share-based compensation, $13.7 million of depreciation and amortization, $1.3 million of non-cash interest and $1.1 million impairment related to acquired in-process research and development, which was partially offset by $54.2 million of a gain on sale of nonfinancial assets, $9.3 million of a foreign currency gain, $0.5 million of a fair value upward adjustment and $0.2 million of net change in right-of-use assets and liabilities. Additionally, operating assets, consisting of accounts receivable – related party, prepaid expenses, tax incentive receivable, other current assets and other assets, net, decreased by $6.0 million and operating liabilities, consisting of accounts payable, accrued expenses, other current liabilities and deferred revenue – related party, decreased by $6.9 million.

Previous wording

Net cash used in investing activities for the year ended December 31, 2022 of $45.0 million consisted of purchases of property and equipment for our manufacturing, laboratory and process development facilities and buildout costs of our new facilities in Ireland.

Current wording

Net cash provided by investing activities for the year ended December 31, 2024 of $23.5 million consisted of $28.4 million from proceeds from the sale of nonfinancial assets offset by $4.9 million of purchases of property and equipment for our manufacturing, laboratory and process development facilities.

Previous wording

Net cash provided by investing activities for the year ended December 31, 2023 of $34.0 million consisted of $54.2 million from proceeds from the sale of nonfinancial assets and $20.2 million of purchases of property and equipment for our manufacturing, laboratory and process development facilities.

Current wording

Net cash provided by investing activities for the year ended December 31, 2023 of $34.0 million consisted of $54.2 million from proceeds from the sale of nonfinancial assets offset by $20.2 million of purchases of property and equipment for our manufacturing, laboratory and process development facilities.

Previous wording

Net cash provided by financing activities was $95.2 million for the year ended December 31, 2022, which consisted primarily of $75.0 million from issuance of the Tranche 1 Notes, $25.0 million from the issuance of ordinary shares and $0.2 million in exercise of share options, which was offset by $2.8 million of payments for withholdings of shares for income taxes, and issuance costs of $2.2 million.

Current wording

Net cash provided by financing activities was $54.5 million for the year ended December 31, 2024, which consisted primarily of $59.4 million from the issuance of ordinary shares, which was offset by $2.5 million of issuance costs and $2.3 million of payments for withholdings of shares for income taxes.