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4D Molecular Therapeutics Inc

For the period ended Mar 31, 2025. Filed May 8, 2025.

View on SEC.gov

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2025 · Filed May 8, 2025

FDMT$12.25+8.9%Stored close · as of Nov 6, 2026

What changed in Management’s Discussion and Analysis?

Read the current filing

Previous report: 10-Q

Period ended 2024-09-30; filed 2024-11-13.

0000950170-24-126370

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Current report: 10-Q

Period ended 2025-03-31; filed 2025-05-08.

0000950170-25-067040

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.

Compared 124 previous paragraphs and 104 current paragraphs.

73 unchanged; 23 reworded; 8 added; 24 removed; 4 previous and 0 current paragraphs rearranged.

Tables are not compared: 5 previous and 3 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.

A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.

Added paragraphs (8)

Current report

We are a leading late-stage biotechnology company advancing durable and disease-targeted therapeutics with potential to transform treatment paradigms and provide unprecedented benefits to patients. Our core pipeline focus is advancing 4D-150 for the treatment of wet AMD and DME through late-stage studies and 4D-710 for treatment of cystic fibrosis through early-stage studies. We believe these product candidates are differentiated and can support meaningful near-term and long-term value generation.

Current report

Our lead product candidate 4D-150 utilizes our proprietary R100 vector and a transgene cassette encoding aflibercept and inhibitory miRNA targeting vascular endothelial growth factor-C (“VEGF-C”). 4D-150 was designed to become the first backbone therapy for the treatment of retinal vascular diseases by providing multi-year sustained production of anti-VEGF from the retina with a single, safe, intravitreal injection, substantially reducing treatment burden and improving long-term patient outcomes. 4D-150 is initially being developed for the treatment of wet age-related macular degeneration (“wet AMD”) and diabetic macular edema (“DME”). In March 2025, we announced the first patients have been enrolled across multiple sites in the 4FRONT-1 Phase 3 clinical trial evaluating 4D-150 for the treatment of wet AMD.

Current report

Our second priority product candidate is 4D-710, which we believe is the first known genetic medicine to demonstrate successful delivery and expression of the CFTR transgene in the lungs of people with cystic fibrosis (CF). We believe these results will translate into durable clinical improvements in people with CF, including improved lung function and quality of life.

Current report

Revenue decreased by an immaterial amount from the three months ended March 31, 2024 to the three months ended March 31, 2025. Revenue for both periods was from CFF.

Current report

General and administrative expenses increased by $2.6 million, or 26%, from the three months ended March 31, 2024 to the three months ended March 31, 2025. The increase was primarily due to:

Current report

a $2.2 million increase in legal fees and consulting services related to public company compliance costs and increase in expenses related to information technology systems implementations; and

Current report

Other income, net, decreased by $0.1 million, or 1%, from the three months ended March 31, 2024 to the three months ended March 31, 2025. The decrease is attributable to lower balances of cash equivalents and marketable securities.

Current report

There was no net cash provided by financing activities for the three months ended March 31, 2025.
Removed paragraphs (24)

Previous report

We are a leading clinical-stage biopharma company focused on unlocking the full potential of genetic medicines through proprietary customized vectors that are designed for the specific diseases we seek to treat. Our proprietary invention platform, Therapeutic Vector Evolution, combines the power of the Nobel Prize-winning technology, directed evolution, with approximately one billion synthetic AAV capsid-derived sequences to invent customized and evolved vectors for use in our wholly owned and partnered product candidates. We believe key features of our targeted and evolved vectors will help us to potentially create targeted genetic medicine product candidates with improved therapeutic profiles. These profiles will allow us to treat a broad range of large market diseases, unlike most current genetic medicines that generally focus on rare or small market diseases. Our product design, development, and manufacturing engine helps us efficiently create and advance our diverse product pipeline with the goal of revolutionizing medicine with potential curative therapies for millions of patients.

Previous report

In July 2024, the U.S. Food and Drug Administration removed the clinical hold on the Phase 1/2 INGLAXA clinical trial in the United States for 4D-310 for the treatment of Fabry disease cardiomyopathy.

Previous report

In August 2019, we amended our agreement with uniQure and entered into a separate new collaboration and license agreement with uniQure. Neither party was required to pay monetary consideration in connection with the amendment or new agreement. We determined the incremental transaction price of the amendment and new agreement to be $5.1 million and recorded the amount as deferred revenue in August 2019. We began recognizing revenue related to uniQure in 2020 and recognized the remaining revenue under the agreement during the third quarter of 2023. We recognized immaterial revenue during the three months ended September 30, 2023, and $0.6 million during the nine months ended September 30, 2023 related to this agreement. See Note 7, Research and Collaboration Agreements, to our condensed financial statements included elsewhere in this report for further discussion regarding the accounting treatment of this agreement.

Previous report

Revenue decreased by $20.2 million, or 100%, from the three months ended September 30, 2023 to the three months ended September 30, 2024, while revenue decreased by $20.7 million, or 100%, from the nine months ended September 30, 2023 to the nine months ended September 30, 2024. The decrease in revenue is due to the upfront fees received from the License Agreement with Astellas in 2023.

Previous report

Research and development expenses increased by $27.1 million, or 38%, from the nine months ended September 30, 2023 to the nine months ended September 30, 2024. The increase was primarily due to the following:

Previous report

a $9.6 million increase in payroll and personnel expenses, including a $2.4 million increase in employee stock-based compensation, due to increased headcount of research and development personnel; and

Previous report

a $2.4 million increase in facilities and other research and development expenses mainly due to higher consulting services, rent and software expenses.

Previous report

General and administrative expenses increased by $3.5 million, or 39%, from the three months ended September 30, 2023 to the three months ended September 30, 2024. The increase was primarily due to:

Previous report

a $1.0 million increase in facilities and other expenses mainly due to higher non-employee stock compensation expense, consulting services, software expenses, service fees and business taxes, which was partially offset by lower business insurance; and

Previous report

General and administrative expenses increased by $7.7 million, or 30%, from the nine months ended September 30, 2023 to the nine months ended September 30, 2024. The increase was primarily due to:

Previous report

a $4.6 million increase in payroll and personnel expenses, including a $1.5 million increase in employee stock-based compensation, due to increased headcount of general and administrative personnel;

Previous report

a $3.0 million increase in facilities and other expenses mainly due to higher non-employee stock compensation expense, consulting services, software expenses, expensed property and equipment, audit and tax fees, service fees and business taxes, which was partially offset by lower business insurance; and

Previous report

Other income, net, increased by $3.6 million, or 96%, from the three months ended September 30, 2023 to the three months ended September 30, 2024. It increased by $12.9 million, or 168%, from the nine months ended September 30, 2023 to the nine months ended September 30, 2024. The increase is attributable to higher balances of cash equivalents and marketable securities, and higher market yields on our cash equivalents and marketable securities.

Previous report

Net cash provided by financing activities was $336.6 million for the nine months ended September 30, 2024. This was primarily due to proceeds from the issuance of common stock upon public offering, net of issuance costs, of $316.1 million, proceeds from the issuance of common stock from the 2022 ATM Offering Program of $15.3 million, proceeds from the issuance of common stock from the exercise of stock options and warrants of $4.5 million and proceeds from the issuance of common stock from purchases from the Company’s 2020 Employee Stock Purchase Plan (“ESPP”) of $0.7 million.

Previous report

We are an emerging growth company, as defined in the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”). Under the JOBS Act, emerging growth companies may delay adopting new or revised accounting standards issued subsequent to the enactment of the JOBS Act until such time as those standards apply to private companies. We have elected to avail ourselves of this exemption from new or revised accounting standards and, therefore, while we are an emerging growth company, we will not be subject to new or revised accounting standards at the same time that they become applicable to other public companies that are not emerging growth companies. As a result, our financial statements may not be comparable to companies that comply with new or revised accounting pronouncements as of public company effective dates.

Previous report

We will remain an emerging growth company until the earlier of (i) December 31, 2025, (ii) the last day of the year in which we have total annual gross revenue of at least $1.235 billion, (iii) the last day of the year in which we are deemed to be a “large accelerated filer” as defined in Rule 12b-2 under the Exchange Act, which would occur if the market value of our common stock held by non-affiliates exceeded $700.0 million as of the last business day of the second fiscal quarter of such year, or (iv) the date on which we have issued more than $1.0 billion in non-convertible debt securities during the prior three-year period. An emerging growth company may take advantage of specified reduced reporting requirements and is relieved of certain other significant requirements that are otherwise generally applicable to public companies. As an emerging growth company:

Previous report

we will present only two years of audited financial statements for any interim period, and related management’s discussion and analysis of financial condition and results of operations;

Previous report

we will avail ourselves of the exemption from the requirement to obtain an attestation and report from our auditors on the assessment of our internal control over financial reporting pursuant to the Sarbanes-Oxley Act of 2002 (the “Sarbanes-Oxley Act”);

Previous report

we will provide less extensive disclosure about our executive compensation arrangements;

Previous report

we will not require stockholder non-binding advisory votes on executive compensation or golden parachute arrangements; and

Previous report

we will take advantage of extended transition periods to comply with new or revised accounting standards, delaying the adoption of these accounting standards until they would apply to private companies.

Previous report

As a result, the information in this report in the future may be different from what you might receive from other public reporting companies.

Previous report

We expect that we will no longer qualify as an emerging growth company after December 31, 2024, at which time we will become subject to certain disclosure and compliance requirements as discussed herein that apply to other public companies but that did not previously, and do not currently, apply to us due to our status as an emerging growth company.
Reworded paragraphs (23)

Previous wording

We have built a deep portfolio of genetic medicine product candidates, with three novel, highly targeted next generation AAV vectors currently in the clinic. This portfolio includes six product candidates in clinical trials: 4D-150 for the treatment of wet age-related macular degeneration (“wet AMD”) and diabetic macular edema (“DME”), 4D-175 for geographic atrophy (“GA”), 4D-710 for the treatment of cystic fibrosis lung disease, 4D-310 for the treatment of Fabry disease cardiomyopathy, 4D-125 for the treatment of X-linked retinitis pigmentosa (“XLRP”) and 4D-110 for the treatment of choroideremia. In addition, we have one product candidate in preclinical development: 4D-725 for alpha-1 antitrypsin deficiency lung disease.

Current wording

In January 2025, we implemented a strategic pipeline prioritization designed to prioritize the development of 4D-150 and 4D-710. Further, we will be seeking strategic alternatives, including potential partnering, for our other clinical stage product candidates: 4D-175 for the treatment of geographic atrophy, 4D-725 for the treatment of alpha-1 antitrypsin deficiency, and 4D-310 for the treatment of Fabry disease cardiomyopathy. In addition, we terminated the development of 4D-110 for the treatment of choroideremia and 4D-125 for the treatment of X-linked retinitis pigmentosa.

Previous wording

Our net losses were $43.8 million and $10.3 million for the three months ended September 30, 2024 and 2023, respectively, and $111.2 million and $68.6 million for the nine months ended September 30, 2024 and 2023, respectively. As of September 30, 2024, we had an accumulated deficit of $526.5 million. We do not expect positive cash flows from operations in the foreseeable future. Our net losses may fluctuate significantly from quarter-to-quarter and year-to-year, depending on the timing of our clinical trials and our expenditures on other research and development activities.

Current wording

Our net losses were $48.0 million and $32.4 million for the three months ended March 31, 2025 and 2024, respectively. As of March 31, 2025, we had an accumulated deficit of $624.2 million. We do not expect positive cash flows from operations in the foreseeable future. Our net losses may fluctuate significantly from quarter-to-quarter and year-to-year, depending on the timing of our clinical trials and our expenditures on other research and development activities.

Previous wording

We will require substantial additional funding to support our continuing operations and further the development of our product candidates. Until such time as we can generate significant revenue from product sales, if ever, we expect to finance our operations through the sale of equity, debt financings, or other capital sources, which could include income from collaborations, strategic partnerships, or other strategic arrangements, for the foreseeable future. Adequate funding may not be available when needed or on terms acceptable to us, or at all. Our ability to raise additional funds may be adversely impacted by potential worsening global economic conditions and the recent disruptions to, and volatility in, the credit and financial markets in the United States and worldwide resulting from conflicts in the Middle East, the lingering impact of the COVID-19 pandemic, the war in Ukraine, rising interest rates, inflation and otherwise. If we fail to obtain necessary capital when needed on acceptable terms, or at all, it could force us to delay, limit, reduce or terminate our product development programs, commercialization efforts or other operations. Insufficient liquidity may also require us to relinquish rights to product candidates at an earlier stage of development or on less favorable terms than we would otherwise choose. We cannot assure you that we will ever be profitable or generate positive cash flow from operating activities.

Current wording

We will require substantial additional funding to support our continuing operations and further the development of our product candidates. Until such time as we can generate significant revenue from product sales, if ever, we expect to finance our operations through the sale of equity, debt financings, or other capital sources, which could include income from collaborations, strategic partnerships, or other strategic arrangements, for the foreseeable future. Adequate funding may not be available when needed or on terms acceptable to us, or at all. Our ability to raise additional funds may be adversely impacted by potential worsening global economic conditions and the recent disruptions to, and volatility in, the credit and financial markets in the United States and worldwide resulting from conflicts in the Middle East, the lingering impact of the COVID-19 pandemic, the war in Ukraine, rising interest rates, tariffs, inflation and otherwise. If we fail to obtain necessary capital when needed on acceptable terms, or at all, it could force us to delay, limit, reduce or terminate our product development programs, commercialization efforts or other operations. Insufficient liquidity may also require us to relinquish rights to product candidates at an earlier stage of development or on less favorable terms than we would otherwise choose. We cannot assure you that we will ever be profitable or generate positive cash flow from operating activities.

Previous wording

At this time, we cannot reasonably estimate or know the nature, timing or estimated costs of the efforts that will be necessary to complete the development of, and obtain regulatory approval for, any of our product candidates. We expect our research and development expenses to increase for the foreseeable future as we continue to invest in research and development activities related to developing our product candidates, as our product candidates advance into later stages of development, as we begin to conduct larger clinical trials, as we seek regulatory approvals for any product candidates that successfully complete clinical trials, and incur expenses associated with hiring additional personnel to support our research and development efforts. We have strengthened ophthalmology senior leadership team and announced formation of Ophthalmology Advisory Board, ahead of first Phase 3 clinical trial initiation for 4D-150 in wet AMD. The process of conducting the necessary clinical research to obtain regulatory approval is costly and time-consuming, and the successful development of our product candidates is highly uncertain. See the section titled “Risk Factors” for additional risks regarding regulatory development and approval.

Current wording

At this time, we cannot reasonably estimate or know the nature, timing or estimated costs of the efforts that will be necessary to complete the development of, and obtain regulatory approval for, any of our product candidates. We expect our research and development expenses to increase for the foreseeable future as we continue to invest in research and development activities related to developing our product candidates, as our product candidates advance into later stages of development, as we begin to conduct larger clinical trials, as we seek regulatory approvals for any product candidates that successfully complete clinical trials, and incur expenses associated with hiring additional personnel to support our research and development efforts. We have strengthened our ophthalmology senior leadership team and announced formation of the Ophthalmology Advisory Board, ahead of first Phase 3 clinical trial initiation for 4D-150 in wet AMD. The process of conducting the necessary clinical research to obtain regulatory approval is costly and time-consuming, and the successful development of our product candidates is highly uncertain. See the section titled “Risk Factors” for additional risks regarding regulatory development and approval.

Previous wording

Comparison of the Three and Nine Months Ended September 30, 2024 and 2023

Current wording

Comparison of the Three Months Ended March 31, 2025 and 2024

Previous wording

Research and development expenses increased by $13.4 million, or 54%, from the three months ended September 30, 2023 to the three months ended September 30, 2024. The increase was primarily due to the following:

Current wording

Research and development expenses increased by $12.8 million, or 46%, from the three months ended March 31, 2024 to the three months ended March 31, 2025. The increase was primarily due to the following:

Previous wording

a $5.9 million increase in payroll and personnel expenses, including a $1.3 million increase in employee stock-based compensation, due to increased headcount of research and development personnel; and

Current wording

a $4.8 million increase in payroll and personnel expenses, including a $0.9 million increase in employee stock-based compensation, due to increased headcount of research and development personnel;

Previous wording

a $6.3 million increase in clinical trial costs mainly due to increased clinical trial activity for our product candidates, primarily 4D-150;

Current wording

a $4.5 million increase in clinical trial costs mainly due to increased clinical trial activity for our product candidates, primarily 4D-150; and

Previous wording

a $1.2 million increase in facilities and other research and development expenses mainly due to higher consulting services, rent and software expenses.

Current wording

a $3.5 million increase in facilities and other research and development expenses mainly due to higher rent, consulting services, software and information technology expenses.

Previous wording

a $1.6 million increase in payroll and personnel expenses due to increased headcount of general and administrative personnel;

Current wording

a $0.4 million increase in payroll and personnel expenses due to increased headcount of general and administrative personnel.

Previous wording

We have funded our operations primarily through the sale and issuance of our equity securities, including from the sale of our common stock in our IPO, Follow-on Offerings, and At-the-Market Offering and the sale of our Series A, Series A-1, Series B and Series C redeemable preferred stock, and to a lesser extent from cash received pursuant to our collaboration and license agreements.

Current wording

We have funded our operations primarily through the sale and issuance of our equity securities, including from the sale of our common stock in our IPO, Follow-on Offerings, and “at-the-market” offerings and the sale of our Series A, Series A-1, Series B and Series C redeemable preferred stock, and to a lesser extent from cash received pursuant to our collaboration and license agreements.

Previous wording

In March 2022, we filed a Registration Statement on Form S-3 covering the offering of up to $300.0 million of common stock, preferred stock, debt securities, warrants and units, which was declared effective by the SEC in April 2022 (the “S-3 Registration Statement”). In March 2022, we also entered into an Open Market Sales Agreement (the “Sales Agreement”) with Jefferies LLC as sales agent to sell shares of our common stock, from time to time, with aggregate gross sales proceeds of up to $100.0 million pursuant to the S-3 Registration Statement as an “at-the-market” offering under the Securities Act (the “2022 ATM Offering Program”). 1,684,550 shares of the Company’s common stock have been sold pursuant to the Sales Agreement for net proceeds to the Company of $34.4 million, after deducting issuance costs. On May 31, 2024, we terminated the Sales Agreement and the 2022 ATM Offering Program pursuant to the terms of the Sales Agreement.

Current wording

In March 2022, we filed a Registration Statement on Form S-3 covering the offering of up to $300.0 million of common stock, preferred stock, debt securities, warrants and units, which was declared effective by the SEC in April 2022 (the “S-3 Registration Statement”). In March 2022, we also entered into an Open Market Sales Agreement (the “Sales Agreement”) with Jefferies LLC as sales agent to sell shares of our common stock, from time to time, with aggregate gross sales proceeds of up to $100.0 million pursuant to the S-3 Registration Statement as an “at-the-market” offering under the Securities Act (the “2022 ATM Offering Program”). On May 31, 2024, we terminated the Sales Agreement and the 2022 ATM Offering Program pursuant to the terms of the Sales Agreement. At termination, 1,684,550 shares of the Company’s common stock had been sold pursuant to the Sales Agreement for net proceeds to the Company of $34.4 million, after deducting issuance costs.

Previous wording

In June 2024, we entered into a Sales Agreement (the “Leerink Sales Agreement”) with Leerink Partners LLC (“Leerink”) as sales agent to sell shares of our common stock, from time to time, with aggregate gross sales proceeds of up to $250.0 million pursuant to a Registration Statement on Form S-3 that we filed with the SEC in February 2024 as an “at-the-market” offering under the Securities Act (the “2024 ATM Offering Program”). For the three and nine months ended September 30, 2024, no shares had been sold pursuant to the Leerink Sales Agreement.

Current wording

In June 2024, we entered into a Sales Agreement (the “Leerink Sales Agreement”) with Leerink Partners LLC (“Leerink”) as sales agent to sell shares of our common stock, from time to time, with aggregate gross sales proceeds of up to $250.0 million pursuant to a Registration Statement on Form S-3 that we filed with the SEC in February 2024 as an “at-the-market” offering under the Securities Act. For the three months ended March 31, 2025, no shares were sold pursuant to the Leerink Sales Agreement.

Previous wording

As of September 30, 2024, we had cash, cash equivalents and marketable securities of $550.7 million.

Current wording

As of March 31, 2025, we had cash, cash equivalents and marketable securities of $458.4 million.

Previous wording

We have experienced recurring net losses and had an accumulated deficit of $526.5 million as of September 30, 2024. Our transition to profitability is dependent upon the successful development, approval and commercialization of our product candidates and those of our collaboration partners and achieving a level of revenue adequate to support our cost structure. We expect to continue to incur losses for the foreseeable future.

Current wording

We have experienced recurring net losses and had an accumulated deficit of $624.2 million as of March 31, 2025. Our transition to profitability is dependent upon the successful development, approval and commercialization of our product candidates and those of our collaboration partners and achieving a level of revenue adequate to support our cost structure. We expect to continue to incur losses for the foreseeable future.

Previous wording

We believe that our existing cash and cash equivalents will allow us to fund our planned operations for at least one year from the date of the issuance of this report.

Current wording

We believe that our existing cash, cash equivalents and marketable securities will allow us to fund our planned operations for at least one year from the date of the issuance of the financial statements included in this report.

Previous wording

We do not have any committed external sources of funds. Accordingly, we will be required to obtain further funding through public or private equity offerings, debt financings, collaborations and licensing arrangements or other sources to complete the clinical development for the product candidates for treatment of wet AMD, DME, GA, cystic fibrosis lung disease, alpha-1 antitrypsin deficiency lung disease, Fabry disease cardiomyopathy, XLRP, choroideremia or any other indication we may pursue. If we raise additional funds by issuing equity securities, our stockholders may experience dilution. Any future debt financing into which we enter would result in fixed payment obligations and may involve agreements that include grants of security interests on our assets and restrictive covenants that limit our ability to take specific actions, such as incurring additional debt, making capital expenditures, granting liens over our assets, redeeming stock or declaring dividends, that could adversely impact our ability to conduct our business. Any debt financing or additional equity that we raise may contain terms that could adversely affect our common stockholders. Further, additional funds may not be available when we need them, on terms that are acceptable to us, or at all. Our ability to raise additional capital may be adversely impacted by potential worsening global economic conditions and the recent disruptions to and volatility in the credit and financial markets in the United States and worldwide resulting from the war in Ukraine, conflicts in the Middle East, any expansion of these conflicts, rising interest rates and inflation, natural disasters and pandemics.

Current wording

We do not have any committed external sources of funds. Accordingly, we will be required to obtain further funding through public or private equity offerings, debt financings, collaborations and licensing arrangements or other sources to complete the clinical development for the product candidates for treatment of wet AMD, DME, GA, cystic fibrosis lung disease, alpha-1 antitrypsin deficiency lung disease, Fabry disease cardiomyopathy or any other indication we may pursue. If we raise additional funds by issuing equity securities, our stockholders may experience dilution. Any future debt financing into which we enter would result in fixed payment obligations and may involve agreements that include grants of security interests on our assets and restrictive covenants that limit our ability to take specific actions, such as incurring additional debt, making capital expenditures, granting liens over our assets, redeeming stock or declaring dividends, that could adversely impact our ability to conduct our business. Any debt financing or additional equity that we raise may contain terms that could adversely affect our common stockholders. Further, additional funds may not be available when we need them, on terms that are acceptable to us, or at all. Our ability to raise additional capital may be adversely impacted by potential worsening global economic conditions and the recent disruptions to and volatility in the credit and financial markets in the United States and worldwide resulting from the war in Ukraine, conflicts in the Middle East, any expansion of these conflicts, rising interest rates and inflation, natural disasters and pandemics.

Previous wording

Net cash used in operating activities was $88.7 million for the nine months ended September 30, 2024. This was primarily due to the net loss of $111.2 million, adjusted for noncash charges of $18.2 million and net changes in operating assets and liabilities of $4.3 million. Noncash charges included $18.5 million of stock-based compensation expense, $3.6 million of depreciation and amortization and $1.4 million for the amortization of operating lease right-of-use assets, offset by $5.3 million net accretion of discount on marketable securities. Net changes in operating assets and liabilities included an increase of $8.9 million in accrued and other liabilities which were offset by decreases of $1.4 million in operating lease liabilities and $0.6 million in accounts payable and increases of $2.2 million in other assets and $0.5 million in prepaid expenses and other current assets.

Current wording

Net cash used in operating activities was $47.8 million for the three months ended March 31, 2025. This was primarily due to the net loss of $48.0 million, adjusted for noncash charges of $7.4 million and net changes in operating assets and liabilities of $7.2 million. Noncash charges included $7.0 million of stock-based compensation expense, $1.1 million of depreciation and amortization and $0.7 million for the amortization of operating lease right-of-use assets, offset by $1.3 million net accretion of discount on marketable securities and $0.1 million change in fair value of derivative liability. Net changes in operating assets and liabilities included decreases of $0.8 million in operating lease liabilities, $2.3 million in accrued and other liabilities and $0.2 million in accounts payable, and increases of $2.8 million in other assets and $1.1 million in prepaid expenses and other current assets.

Previous wording

Net cash used in operating activities was $51.1 million for the nine months ended September 30, 2023. This was primarily due to the net loss of $68.6 million, adjusted for noncash charges of $17.4 million and net changes in operating assets and liabilities of $0.1 million. Noncash charges included $13.8 million of stock-based compensation expense, $3.1 million of depreciation and amortization, $1.1 million for the amortization of operating lease right-of-use assets and $0.2 million change in fair value of derivative liability, offset by $0.8 million net accretion of discount on marketable securities. Net changes in operating assets and liabilities included a $1.0 million decrease in operating lease liabilities, $0.7 million decrease in deferred revenue and a $1.6 million increase in prepaid expenses and other current assets which were offset by a $2.0 million increase in accounts payable and $1.4 million increase in accrued and other liabilities.

Current wording

Net cash used in operating activities was $29.1 million for the three months ended March 31, 2024. This was primarily due to the net loss of $32.4 million, adjusted for noncash charges of $6.8 million and net changes in operating assets and liabilities of $3.5 million. Noncash charges included $6.0 million of stock-based compensation expense, $1.2 million of depreciation and amortization and $0.4 million for the amortization of operating lease right-of-use assets, offset by $0.8 million net amortization/accretion of premium/discount on marketable securities. Net changes in operating assets and liabilities included a $0.5 million decrease in operating lease liabilities, a $2.4 million decrease in accrued and other liabilities, a $1.3 million increase in prepaid expenses and other current assets and a $0.1 million increase in other assets, offset by $0.7 million increase in accounts payable and a $0.1 million increase in deferred revenue.

Previous wording

Net cash provided by investing activities was $122.4 million for the nine months ended September 30, 2023. This was due to $144.8 million in maturities of marketable securities, offset by purchases of marketable securities of $20.2 million and purchases of property and equipment of $2.2 million.

Current wording

Net cash provided by investing activities was $31.9 million for the three months ended March 31, 2025. This was due to $166.7 million in maturities of marketable securities, offset by purchases of marketable securities of $134.1 million and purchases of property and equipment of $0.6 million.

Previous wording

Net cash used in investing activities was $309.5 million for the nine months ended September 30, 2024. This was due to purchases of marketable securities of $409.9 million and purchases of property and equipment of $2.8 million, offset by $103.2 million in maturities of marketable securities.

Current wording

Net cash used in investing activities was $263.2 million for the three months ended March 31, 2024. This was due to purchases of marketable securities of $277.3 million and purchases of property and equipment of $0.7 million, offset by $14.8 million in maturities of marketable securities.

Previous wording

Net cash provided by financing activities was $152.1 million for the nine months ended September 30, 2023. This was primarily due to proceeds from the issuance of common stock upon public offering of $129.2 million, proceeds from the issuance of common stock from the ATM offering program of $19.1 million, proceeds from the issuance of common stock from the exercise of stock options of $3.1 million, and proceeds from the issuance of common stock from purchases from the ESPP of $0.7 million.

Current wording

Net cash provided by financing activities was $318.8 million for the three months ended March 31, 2024. This was primarily due to proceeds from the 2024 Offering, net of issuance costs, of $315.7 million, and proceeds from the issuance of common stock from the exercise of stock options of $3.1 million.

Previous wording

During the three and nine months ended September 30, 2024, there were no changes to our critical accounting policies and significant judgments and estimates as disclosed in our Annual Report on Form 10-K for the year ended December 31, 2023.

Current wording

During the three months ended March 31, 2025, there were no changes to our critical accounting policies and significant judgments and estimates as disclosed in our Annual Report on Form 10-K for the year ended December 31, 2024.
Rearranged previous paragraphs (4)

Previous report — wording carried elsewhere

In July 2023, we entered into the License Agreement with AGT where we provided our 4D vector technology to AGT to deliver AGT’s genetic payloads for the treatment of rare monogenic diseases. As partial consideration for the rights and licenses granted to AGT under License Agreement, we received an upfront payment of $20.0 million which we recognized as revenue during the third quarter of 2023.

Previous report — wording carried elsewhere

a $15.1 million increase in clinical trial costs mainly due to increased clinical trial activity for our product candidates, primarily 4D-150;

Previous report — wording carried elsewhere

a $0.9 million increase in outside services.

Previous report — wording carried elsewhere

a $0.1 million increase in outside services.