# Monte Rosa Therapeutics, Inc.: Form 10-Q for the period ended Jun 30, 2025

- Company: [Monte Rosa Therapeutics, Inc.](/companies/glue.md) (CIK 1826457)
- Form: 10-Q
- Filed: 2025-08-07
- Accepted by EDGAR: Aug 7, 2025, 11:06 ET
- Period: 2025-06-30
- Accession: 0000950170-25-104550
- Inline XBRL: yes
- Main document: https://www.sec.gov/Archives/edgar/data/1826457/000095017025104550/glue-20250630.htm
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/1826457/000095017025104550/

## Figures reported in this filing

Standardized XBRL line items for the period ended 2025-06-30.

| Line item | Period | Value | XBRL concept |
| --- | --- | ---: | --- |
| Revenue | 3 months, 2025-04-01 to 2025-06-30 | $23.2m | us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax |
| Revenue | 6 months, 2025-01-01 to 2025-06-30 | $108.1m | us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax |
| Research and development | 3 months, 2025-04-01 to 2025-06-30 | $30.7m | us-gaap:ResearchAndDevelopmentExpense |
| Research and development | 6 months, 2025-01-01 to 2025-06-30 | $62.8m | us-gaap:ResearchAndDevelopmentExpense |
| Operating income | 3 months, 2025-04-01 to 2025-06-30 | −$15.6m | us-gaap:OperatingIncomeLoss |
| Operating income | 6 months, 2025-01-01 to 2025-06-30 | $28.5m | us-gaap:OperatingIncomeLoss |
| Income tax | 3 months, 2025-04-01 to 2025-06-30 | $1.2m | us-gaap:IncomeTaxExpenseBenefit |
| Income tax | 6 months, 2025-01-01 to 2025-06-30 | $2.0m | us-gaap:IncomeTaxExpenseBenefit |
| Net income | 3 months, 2025-04-01 to 2025-06-30 | −$12.3m | us-gaap:NetIncomeLoss |
| Net income | 6 months, 2025-01-01 to 2025-06-30 | $34.6m | us-gaap:NetIncomeLoss |
| Diluted shares (weighted) | 3 months, 2025-04-01 to 2025-06-30 | 82,186,768 shares | us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding |
| Diluted shares (weighted) | 6 months, 2025-01-01 to 2025-06-30 | 82,890,063 shares | us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding |
| Operating cash flow | 6 months, 2025-01-01 to 2025-06-30 | −$80.2m | us-gaap:NetCashProvidedByUsedInOperatingActivities |
| Capital expenditure | 6 months, 2025-01-01 to 2025-06-30 | $3.3m | us-gaap:PaymentsToAcquirePropertyPlantAndEquipment |
| Dividends paid | 6 months, 2025-01-01 to 2025-06-30 | $0 | us-gaap:PaymentsOfDividends |
| Cash and equivalents | at 2025-06-30 | $69.4m | us-gaap:CashAndCashEquivalentsAtCarryingValue |
| Current assets | at 2025-06-30 | $299.5m | us-gaap:AssetsCurrent |
| Total assets | at 2025-06-30 | $359.6m | us-gaap:Assets |
| Current liabilities | at 2025-06-30 | $41.9m | us-gaap:LiabilitiesCurrent |
| Total liabilities | at 2025-06-30 | $91.5m | us-gaap:Liabilities |
| Shareholders' equity | at 2025-06-30 | $268.1m | us-gaap:StockholdersEquity |

## Management's discussion and analysis

As filed, 35,517 characters.

*The following discussion and analysis should be read in conjunction with the unaudited condensed consolidated financial statements and related notes included elsewhere in this Quarterly Report. This discussion and analysis and other parts of this Quarterly Report contain forward-looking statements based upon current beliefs, plans and expectations that involve risks, uncertainties and assumptions, such as statements regarding our plans, objectives, expectations, intentions and projections. Our actual results and the timing of selected events could differ materially from those anticipated in these forward-looking statements as a result of several factors, including those set forth in “Part I, Item 1A, Risk Factors” in our 2024 Annual Report and under Part II, Item 1A, “Risk Factors” and elsewhere in this Quarterly Report. You should carefully read the “Risk Factors” section of this Quarterly Report to gain an understanding of the important factors that could cause actual results to differ materially from our forward-looking statements. Please also see the section entitled “Special note regarding forward-looking statements.”*

### Overview

We are a biotechnology company developing a portfolio of novel and proprietary MGDs. MGDs are small molecule drugs that employ the body’s natural protein destruction mechanisms to selectively degrade therapeutically-relevant proteins.

MGDs work by inducing the engagement of defined surfaces identified on target proteins by an E3 ligase, such as cereblon. We have developed a proprietary and industry-leading protein degradation discovery engine, called QuEENTM to enable our unique, target-centric, MGD discovery and development and our rational design of MGD products. We believe our small molecule MGDs may give us significant advantages over existing therapeutic modalities, including other protein degradation approaches. We prioritize our product development on therapeutic targets backed by strong biological and genetic rationale with the goal of discovering and developing novel medicines.

Monte Rosa Therapeutics AG, a Swiss operating company, was incorporated under the laws of Switzerland in April 2018. Monte Rosa Therapeutics, Inc. was incorporated in Delaware in November 2019. In 2020, through a common control reorganization, Monte Rosa Therapeutics, Inc. acquired the net assets and shareholding of Monte Rosa Therapeutics AG. Monte Rosa Therapeutics, Inc. includes wholly owned subsidiaries Monte Rosa Therapeutics AG and Monte Rosa Securities Corporation. We are headquartered in Boston, Massachusetts with research operations in both Boston and Basel, Switzerland.

### Recent Developments

In June 2025, the United States Food and Drug Administration cleared the investigational new drug application for MRT-8102, a NEK7-directed MGD being developed for the treatment of inflammatory diseases driven by the NLRP3 inflammasome and IL-1β. In July 2025, we initiated a Phase 1 study evaluating MRT-8102, with the first patients being dosed. The MRT-8102 Phase 1 study is a randomized, double-blind, placebo-controlled trial in healthy volunteers that includes both single ascending dose (SAD) and multiple ascending dose (MAD) cohorts. The study is designed to evaluate safety and tolerability, pharmacokinetics (PK), and pharmacodynamics (PD), including NEK7 degradation and *ex vivo* responses to inflammasome stimulation. Part 3 of the Phase 1 study is a randomized, placebo-controlled trial that will enroll subjects with increased CVD risk due to obesity and elevated CRP, designed to evaluate safety and tolerability, change in CRP levels, pharmacokinetics, and changes in other inflammatory markers. Initial results from the Phase 1 study are anticipated in the first half of 2026.

### Liquidity

To date, we have financed our operations primarily through the issuance and sale of convertible promissory notes, convertible preferred stock, public offerings of our common stock or warrants to purchase common stock, registered direct offerings, and through our collaboration agreements. From our inception through the date hereof, there have been aggregate inflows of $836.0 million of gross proceeds from such transactions. Since inception, we have had significant operating losses. Our primary use of cash is to fund operating expenses, which consist primarily of research and development expenditures and, to a lesser extent, general and administrative expenditures. For the six months ended June 30, 2025, we reported net income of $34.6 million. For the years ended December 31, 2024 and 2023, we reported net losses of $72.7 million and $135.4 million, respectively. As of June 30, 2025, we had an accumulated deficit of $404.0 million and $295.5 million in cash, cash equivalents, restricted cash and marketable securities.

### Impact of global economic and political developments

The development of our product candidates could be disrupted and materially adversely affected in the future by global economic or political developments. In addition, economic uncertainty in global markets caused by political instability and conflict, and economic challenges caused by global pandemics or other public health events, may lead to market disruptions, including significant volatility in commodity prices, credit and capital market instability and supply chain interruptions. Our business, financial condition and results of operations could be materially and adversely affected by negative impacts on the global economy and capital markets resulting from these global economic conditions, particularly if such conditions are prolonged or worsen.

### Components of operating results

### Collaboration revenue

Collaboration revenue represents amounts earned from our collaboration and license agreements with Roche and Novartis. We expect that our revenue for the next several years will be derived primarily through our current collaboration and license agreements and any additional collaborations that we may enter into in the future.

### Research and development expenses

Our research and development expenses include:

- expenses incurred under agreements with consultants, third-party service providers that conduct research and development activities on our behalf;
- personnel costs, which include salaries, benefits, pension and stock-based compensation;
- laboratory and vendor expenses related to the execution of preclinical and clinical studies;
- laboratory supplies and materials used for internal research and development activities; and
- facilities and equipment costs.

Most of our research and development expenses have been related to the development of our QuEENTM discovery engine and advancement of our GSPT1 and VAV1 programs, advancement of our disclosed and undisclosed programs including for NEK7, CDK2, and CCNE1.

We expense all research and development costs in the periods in which they are incurred. Costs for certain research and development activities are recognized based on an evaluation of the progress to completion of specific tasks using information and data provided to us by our vendors and third-party service providers.

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. As a result, we are unable to determine the duration and completion costs of our research and development projects, the costs of related clinical development costs or when and to what extent we will generate revenue from the commercialization and sale of any of our product candidates.

We expect our research and development expenses to increase substantially for the foreseeable future as we continue to invest in research and development activities related to developing our product candidates, including investments in manufacturing, as we advance our programs and conduct clinical trials. 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. As a result, we are unable to determine the duration and completion costs of our research and development projects, the costs of related clinical development costs or when and to what extent we will generate revenue from the commercialization and sale of any of our product candidates.

### General and administrative expenses

Our general and administrative expenses consist primarily of personnel costs and other expenses for outside professional services, including legal fees relating to patent and corporate matters, professional fees for accounting, auditing, tax and administrative consulting services, insurance costs and other operating costs. We expect our general and administrative expenses to increase over the next several years to support our continued research and development activities, manufacturing activities, and the potential commercialization of our product candidates and development of commercial infrastructure. We also anticipate our general and administrative costs will increase with respect to the hiring of additional personnel, fees to outside consultants, lawyers and accountants, and increased costs associated with being a public company, such as expenses related to services associated with maintaining compliance with Nasdaq listing rules and SEC reporting requirements, insurance and investor relations costs.

### Non-operating income and (expense)

Our non-operating income and (expense) includes (i) interest earned on our investments, including principally U.S. government-backed money-market funds and marketable securities; (ii) gains and losses on transactions of our Swiss subsidiary denominated in currencies other than the U.S. Dollar; and (iii) proceeds from the sale of fixed assets.

### Results of operations for the three months ended June 30, 2025 and 2024

The following sets forth our results of operations (in thousands):

### Collaboration revenue

|  | Three months ended June 30, 2025 | 2024 | Dollar change |
| --- | ---: | ---: | ---: |
| Collaboration revenue | $23,194 | $4,695 | $18,499 |
| Operating expenses: |  |  |  |
| Research and development | $30,653 | $28,055 | $2,598 |
| General and administrative | 8,095 | 9,282 | (1,187) |
| Total operating expenses | 38,748 | 37,337 | 1,411 |
| Loss from operations | (15,554) | (32,642) | 17,088 |
| Other income | 4,458 | 2,584 | 1,874 |
| Net loss before income taxes | (11,096) | (30,058) | 18,962 |
| Provision for income taxes | (1,199) | (252) | (947) |
| Net loss | $(12,295) | $(30,310) | $18,015 |

Collaboration revenue of $23.2 million and $4.7 million for the three months ended June 30, 2025 and 2024, respectively, represents revenue recorded under our collaboration and license agreements with Roche and Novartis. As of June 30, 2025, $18.4 million was classified as current deferred revenue on the condensed consolidated balance sheet.

### Research and development expenses

Research and development expenses were comprised of (in thousands):

| External research and development expense: | Three months ended June 30, 2025 | 2024 | Dollar change |
| --- | ---: | ---: | ---: |
| MRT-2359 | $2,243 | $3,037 | $(794) |
| MRT-6160 | 1,477 | 2,576 | (1,099) |
| MRT-8102 | 1,623 | 1,406 | 217 |
| Other development and discovery programs | 5,702 | 3,500 | 2,202 |
| Personnel expense | 11,758 | 9,914 | 1,844 |
| Overhead and administrative expense | 7,850 | 7,622 | 228 |
| Total research and development expense | $30,653 | $28,055 | $2,598 |

As of June 30, 2025, we had 112 employees engaged in research and development activities in our facilities in the U.S. and Switzerland. As of June 30, 2024, we had 103 research and development employees in our facilities in the U.S. and Switzerland.

Most of our research and development expenses were driven by the successful achievement of key research milestones in our research and development organization, including the continuation of the MRT-2359 clinical study, continued program activities for MRT-6160 in preparation for Phase 2 studies, the advancement of MRT-8102 into the clinic, the progression of our preclinical pipeline including research performed for our collaboration with Roche, and the continued development of our QuEEN™ discovery engine, and reflect increased personnel expense and external R&D costs to achieve these milestones. Research and development expenses for the three months ended June 30, 2025 and 2024 included non-cash stock-based compensation expense of $2.9 million and $2.6 million, respectively.

### General and administrative expenses

General and administrative expenses to support our business activities were comprised of (in thousands):

|  | Three months ended June 30, 2025 | 2024 | Dollar change |
| --- | ---: | ---: | ---: |
| Personnel costs | $5,479 | $5,326 | $153 |
| Professional services | 1,050 | 1,356 | (306) |
| Facility costs and other expense | 1,566 | 2,600 | (1,034) |
| Total general and administrative expense | $8,095 | $9,282 | $(1,187) |

21

As of June 30, 2025 and 2024 we had 30 and 26 employees engaged in general and administrative activities, respectively. General and administrative expenses for the three months ended June 30, 2025 and 2024 included non-cash stock-based compensation expense of $2.0 million and $1.9 million, respectively.

### Other income (expense)

Other income (expense), net was comprised of (in thousands):

|  | Three months ended June 30, 2025 | 2024 | Dollar change |
| --- | ---: | ---: | ---: |
| Interest income, net | $3,068 | $2,637 | $431 |
| Foreign currency exchange gain (loss), net | 1,390 | (53) | 1,443 |
| Other income | $4,458 | $2,584 | $1,874 |

The increase in interest and other income for the three months ended June 30, 2025, is primarily due to the revaluation of Swiss-franc denominated deposits.

### Provision for income taxes

For the three months ended June 30, 2025, we recorded a provision for income taxes of $1.2 million, primarily driven by the current federal and state taxes related to the $150 million upfront payment for the Novartis License Agreement, which will be recognized as taxable net controlled foreign corporation tested income, or NCTI. For the three months ended June 30, 2024, the income tax provision was primarily related to interest income on marketable securities in Massachusetts and the U.S. taxable income generated from the capitalization of research and development expenses.

### Results of operations for the six months ended June 30, 2025 and 2024

The following sets forth our results of operations (in thousands):

|  | Six months ended June 30, 2025 | 2024 | Dollar change |
| --- | ---: | ---: | ---: |
| Collaboration revenue | $108,123 | $5,759 | $102,364 |
| Operating expenses: |  |  |  |
| Research and development | 62,843 | 55,081 | 7,762 |
| General and administrative | 16,798 | 18,267 | (1,469) |
| Total operating expenses | 79,641 | 73,348 | 6,293 |
| Income (loss) from operations | 28,482 | (67,589) | 96,071 |
| Other income | 8,129 | 5,646 | 2,483 |
| Net loss before income taxes | $36,611 | $(61,943) | $98,554 |
| Provision for income taxes | (2,021) | (335) | (1,686) |
| Net income (loss) | $34,590 | $(62,278) | $96,868 |

### Collaboration revenue

Collaboration revenue of $108.1 million and $5.8 million for the six months ended June 30, 2025 and 2024, respectively, represents revenue recorded under our collaboration and license agreements with Roche and Novartis. As of June 30, 2025, $18.4 million was classified as current deferred revenue on the condensed consolidated balance sheet.

### Research and development expenses

Research and development expenses were comprised of (in thousands):

| External research and development expense: | Six months ended June 30, 2025 | 2024 | Dollar change |
| --- | ---: | ---: | ---: |
| MRT-2359 | $4,187 | $6,923 | $(2,736) |
| MRT-6160 | 5,458 | 4,554 | 904 |
| MRT-8102 | 3,081 | 2,796 | 285 |
| Other development and discovery programs | 10,928 | 6,654 | 4,274 |
| Personnel expense | 23,110 | 19,723 | 3,387 |
| Overhead and administrative expense | 16,079 | 14,431 | 1,648 |
| Total research and development expense | $62,843 | $55,081 | $7,762 |

22

As of June 30, 2025, we had 112 employees engaged in research and development activities in our facilities in the U.S. and Switzerland. As of June 30, 2024, we had 103 research and development employees in our facilities in the U.S. and Switzerland.

Most of our research and development expenses were driven by the successful achievement of key research milestones in our research and development organization, including the continuation of the MRT-2359 clinical study, continued program activities for MRT-6160 in preparation for Phase 2 studies, the advancement of MRT-8102 into the clinic, the progression of our preclinical pipeline including research performed for our collaboration with Roche, and the continued development of our QuEEN™ discovery engine, and reflect increased personnel expense and external R&D costs to achieve these milestones. Research and development expenses for the six months ended June 30, 2025 and 2024 included non-cash stock-based compensation expense of $6.0 million and $5.3 million, respectively.

### General and administrative expenses

General and administrative expenses to support our business activities were comprised of (in thousands):

|  | Six months ended June 30, 2025 | 2024 | Dollar change |
| --- | ---: | ---: | ---: |
| Personnel costs | $11,158 | $10,741 | $417 |
| Professional services | 2,528 | 3,278 | (750) |
| Facility costs and other expenses | 3,112 | 4,248 | (1,136) |
| Total general and administrative expenses | $16,798 | $18,267 | $(1,469) |

As of June 30, 2025 and 2024 we had 30 and 26 employees engaged in general and administrative activities, respectively. General and administrative expenses for the six months ended June 30, 2025 and 2024 included non-cash stock-based compensation expense of $4.2 million and $4.1 million, respectively.

### Other income (expense)

Other income (expense), net was comprised of (in thousands):

|  | Six months ended June 30, 2025 | 2024 | Dollar change |
| --- | ---: | ---: | ---: |
| Interest income, net | $6,507 | $5,079 | $1,428 |
| Foreign currency exchange gain (loss), net | 1,563 | 567 | $996 |
| Gain on disposal of property and equipment | 59 | — | $59 |
| Other income | $8,129 | $5,646 | $2,483 |

The increase in interest and other income for the six months ended June 30, 2025, is principally attributable to higher interest rates on marketable securities.

### Provision for income taxes

For the six months ended June 30, 2025, we recorded a provision for income taxes of $2.0 million, primarily driven by the current federal and state taxes related to the $150 million upfront payment for the Novartis License Agreement, which will be recognized as taxable NCTI. For the six months ended June 30, 2024, the income tax provision was primarily related to interest income on marketable securities in Massachusetts and the U.S. taxable income generated from the capitalization of research and development expenses.

### Liquidity and capital resources

### Overview

Due to our significant research and development expenditures, we have generated operating losses since our inception. We have funded our operations primarily through the issuance and sale of convertible promissory notes, convertible preferred stock, public offerings of our common stock or warrants to purchase common stock, registered direct offerings, and through our collaboration agreements. As of June 30, 2025, we had $295.5 million in cash, cash equivalents, restricted cash and marketable securities. We have incurred losses since our inception and, as of June 30, 2025, we had an accumulated deficit of $404.0 million. Our primary use of cash is to fund operating expenses, which consist primarily of research and development expenditures, and to a lesser extent, general and administrative expenditures. Cash used to fund operating expenses is impacted by the timing of when we pay these expenses, as reflected in the change in our outstanding accounts payable and accrued expenses.

### Underwritten public offering

In May 2024, we entered into an underwriting agreement with TD Securities (USA) LLC, as representative of the several underwriters, related to an underwritten public offering, or the Offering, of 10,638,476 shares of common stock at a price of $4.70 per share, and, in lieu of common stock to certain investors, pre-funded warrants to purchase 10,638,524 shares of common stock at a price of $4.6999 per pre-funded warrant, which represents the price per share at which shares of common stock were sold in this Offering, minus $0.0001, which is the exercise price of each pre-funded warrant. The pre-funded warrants are immediately exercisable and may be exercised at any time until the pre-funded warrants are exercised in full. Aggregate gross proceeds from the Offering were $100 million, or aggregate net proceeds of $96.4 million after deducting the underwriter discounts, commissions, and other offering costs.

### At-the-market offering

On July 1, 2022, we filed a registration statement on Form S-3 (File No. 333-266003) with the SEC, which was declared effective on July 13, 2022, or the 2022 Shelf Registration Statement, in relation to the registration of common stock, preferred stock, debt securities, warrants and/or units of any combination thereof for the purposes of selling, from time to time, our common stock, debt securities or other equity securities in one or more offerings. We also simultaneously entered into the Open Market Sale AgreementSM, or the Sales Agreement, with Jefferies LLC, or Jefferies, to provide for the offering, issuance and sale of up to an aggregate amount of $100.0 million of our common stock from time to time in “at-the-market” offerings, or the ATM Program, under the 2022 Shelf Registration Statement and subject to the limitations thereof.

On March 20, 2025, we filed a registration statement on Form S-3 (File No. 333-285942) with the SEC, which was declared effective on March 31, 2025, or the 2025 Shelf Registration Statement, in relation to the registration of common stock, preferred stock, debt securities, warrants and/or units of any combination thereof for the purposes of selling, from time to time, our common stock, debt securities or other equity securities in one or more offerings. We also simultaneously entered into the Amendment No. 1 to the Sales Agreement, or the Amendment, with Jefferies, to provide for the offering, issuance and sale of up to an aggregate amount of $150.0 million of our common stock from time to time under the ATM Program, pursuant to the 2025 Shelf Registration Statement and subject to the limitations thereof.

We will pay to the Jefferies cash commissions of up to 3.0% of the aggregate gross proceeds of sales of common stock under the Sales Agreement. To date through June 30, 2025, 2,612,514 shares have been sold pursuant to the ATM Program.

### Cash flows

The following table summarizes our cash flows for the periods indicated (in thousands):

| Net cash (used in) provided by: | Six months ended June 30, 2025 | 2024 |
| --- | ---: | ---: |
| Operating activities | $(80,212) | $(65,932) |
| Investing activities | (74,905) | (51,305) |
| Financing activities | 379 | 98,269 |
| Net decrease in cash, cash equivalents and restricted cash | $(154,738) | $(18,968) |

#### Operating activities

Net cash used in operating activities of $80.2 million during the six months ended June 30, 2025, was attributable to decreases in our working capital of $20.4 million and a decrease in deferred revenue of $106.9 million, partially offset by our net income of $34.6 million. The decreases in working capital accounts and deferred revenue were partially off-set by non-cash charges of $12.5 million, principally with respect to depreciation expense and stock-based compensation.

Net cash used in operating activities of $65.9 million during the six months ended June 30, 2024 was attributable to our net loss of $62.3 million and decreases in our working capital of $6.8 million, partially off-set by non-cash charges of $12.2 million, principally with respect to depreciation expense and stock-based compensation.

#### Investing activities

Cash used in investing activities of $74.9 million during the six months ended June 30, 2025 was primarily attributable to purchases of marketable securities of $157.0 million and purchases of property and equipment of $3.3 million, partially offset by proceeds from the maturity of marketable securities of $85.4 million.

Cash used in investing activities of $51.3 million during the six months ended June 30, 2024 was primarily attributable to proceeds from the maturity of marketable securities of $82.1 million, offset by purchases of marketable securities of $130.0 million and purchases of property and equipment of $3.4 million.

#### Financing activities

Cash provided by financing activities of $0.4 million for the six months ended June 30, 2025 was primarily due to the proceeds of purchases from the 2021 ESPP.

Net cash provided by financing activities of $98.3 million for the six months ended June 30, 2024 was primarily due to the net proceeds from our Offering of $96.4 million.

#### Funding requirements

Any product candidates we may develop may never achieve commercialization and we anticipate that we will continue to incur losses for the foreseeable future. We expect that our research and development expenses, general and administrative expenses and capital expenditures will continue to increase. As a result, until such time, if ever, as we can generate substantial product revenue, we expect to finance our cash needs through a combination of equity offerings, debt financings or other capital sources, including potential collaborations, licenses and other similar arrangements. Our primary uses of capital are, and we expect will continue to be, compensation and related expenses, third-party clinical research, manufacturing and development services, costs relating to the build-out of our headquarters, laboratories and manufacturing facility, license payments or milestone obligations that may arise, laboratory and related supplies, clinical costs, manufacturing costs, legal and other regulatory expenses and general overhead costs.

Based upon our current operating plan, we believe that our existing cash, cash equivalents and marketable securities will enable us to fund our operating expenses and capital expenditure requirements for at least the next twelve months. We base this estimate on assumptions that may prove to be wrong, and we could utilize our available capital resources sooner than we currently expect.

We will continue to require additional financing to advance our current product candidates through clinical development, to develop, acquire or in-license other potential product candidates and to fund operations for the foreseeable future. We will continue to seek funds through equity offerings, debt financings or other capital sources, including potential collaborations, licenses and other similar arrangements. However, we may be unable to raise additional funds or enter into such other arrangements when needed on favorable terms or at all. If we do raise additional capital through public or private equity offerings, the ownership interest of our existing stockholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect our stockholders’ rights. If we raise additional capital through debt financing, we may be subject to covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends. Any failure to raise capital as and when needed could have a negative impact on our financial condition and on our ability to pursue our business plans and strategies. If we are unable to raise capital, we will need to delay, reduce or terminate planned activities to reduce costs.

Because of the numerous risks and uncertainties associated with research, development and commercialization of pharmaceutical products, we are unable to estimate the exact amount of our operating capital requirements. Our future funding requirements will depend on many factors, including, but not limited to:

- the scope, progress, results and costs of researching, developing and manufacturing our current product candidates or any future product candidates, and conducting preclinical studies and clinical trials;
- the timing of, and the costs involved in, obtaining regulatory approvals or clearances for our lead product candidates or any future product candidates;
- the number and characteristics of any additional product candidates we develop or acquire;
- the cost of manufacturing our lead product candidate or any future product candidates and any products we successfully commercialize, including costs associated with building-out our manufacturing capabilities;
- our ability to establish and maintain strategic collaborations, licensing or other arrangements and the financial terms of any such agreements that we may enter into;
- the expenses needed to attract and retain skilled personnel;
- the costs associated with being a public company;
- the timing, receipt and amount of sales of any future approved or cleared products, if any; and
- the impact of global economic and political developments, future public health events and the corresponding responses of businesses and governments.

Further, our operating plans may change, and we may need additional funds to meet operational needs and capital requirements for clinical trials and other research and development activities. We currently have no credit facility or committed sources of capital. Because of the numerous risks and uncertainties associated with the development and commercialization of our product candidates, we are unable to estimate the amounts of increased capital outlays and operating expenditures associated with our current and anticipated product development programs.

### Critical accounting policies and significant judgments and estimates

Our unaudited interim condensed consolidated financial statements are prepared in accordance with generally accepted accounting principles in the U.S. The preparation of our unaudited interim condensed consolidated financial statements and related disclosures requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, costs and expenses, and the disclosure of contingent assets and liabilities in our condensed financial statements. We base our estimates on historical experience, known trends and events and various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. We evaluate our estimates and assumptions on an ongoing basis. However, even though we believe we have used reasonable estimates and assumptions in preparing our interim condensed consolidated financial statements, the future effects of global economic and political developments and any future public health events on our results of operations, cash flows, and financial position are unclear. Our actual results may differ from these estimates under different assumptions or conditions.

There have been no significant changes to our critical accounting policies from those described in “Part II, Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in our 2024 Annual Report.

For a complete discussion of our significant accounting policies and recent accounting pronouncements, see Note 2 to our condensed consolidated financial statements appearing elsewhere in this Quarterly Report and Note 2 to our 2024 Annual Report.

### Recently issued and adopted accounting pronouncements

Refer to Note 2, “Summary of Significant Accounting Policies,” in the accompanying notes to our and consolidated financial statements appearing elsewhere in this Quarterly Report on Form 10-Q for a discussion of recent accounting pronouncements.

### Contractual obligations and commitments

During the three months ended June 30, 2025, there have been no material changes to our contractual obligations and commitments from those described under “Part II, Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in our Annual Report on Form 10-K for the year ended December 31, 2024, filed with the Securities and Exchange Commission on March 20, 2025.

### Emerging growth and smaller reporting company status

In April 2012, the Jumpstart Our Business Startups Act of 2012, or the JOBS Act, was enacted. Section 107 of the JOBS Act provides that an “emerging growth company” may take advantage of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act for complying with new or revised accounting standards. Therefore, an emerging growth company can delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have elected to avail ourselves of this extended transition period and, as a result, we may adopt new or revised accounting standards on the relevant dates on which adoption of such standards is required for non-public companies instead of the dates required for other public companies. However, we may early adopt these standards.

We will cease to be an emerging growth company on the date that is the earliest of (i) the last day of the fiscal year in which we have total annual gross revenues of $1.235 billion or more, (ii) the last day of our fiscal year following the fifth anniversary of the date of the closing of our initial public offering, or our IPO, (iii) the date on which we have issued more than $1.0 billion in nonconvertible debt during the previous three years or (iv) the date on which we are deemed to be a large, accelerated filer under the rules of the SEC.

We are also a “smaller reporting company,” meaning that the market value of our stock held by non-affiliates plus the aggregate amount of gross proceeds to us as a result of our IPO is less than $700 million and our annual revenue was less than $100 million during the most recently completed fiscal year. We may continue to be a smaller reporting company after our IPO if either (i) the market value of our stock held by non-affiliates is less than $250 million or (ii) our annual revenue was less than $100 million during the most recently completed fiscal year and the market value of our stock held by non-affiliates is less than $700 million. If we are a smaller reporting company at the time we cease to be an emerging growth company, we may continue to rely on exemptions from certain disclosure requirements that are available to smaller reporting companies. Specifically, as a smaller reporting company we may choose to present only the two most recent fiscal years of audited financial statements in our annual reports on Form 10-K and, similar to emerging growth companies, smaller reporting companies have reduced disclosure obligations regarding executive compensation.

## Market risk

As filed, 155 characters.

We are a smaller reporting company as defined by Rule 12b-2 of the Exchange Act and are not required to provide the information required under this Item 3.

## Controls and procedures

As filed, 2,507 characters.

### Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our principal executive officer and our principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended, or the Exchange Act, as of June 30, 2025. The term “disclosure controls and procedures,” as defined in the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure.

Based on the evaluation of our disclosure controls and procedures as of June 30, 2025, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures as of such date are effective at the reasonable assurance level.

### Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during three months ended June 30, 2025 that materially affected, or were reasonably likely to materially affect, our internal control over financial reporting.

### Inherent Limitations on Effectiveness of Controls

Our disclosure controls and procedures and internal control over financial reporting are designed to provide reasonable assurance of achieving the desired control objectives. Our management recognizes that any control system, no matter how well designed and operated, is based upon certain judgments and assumptions and cannot provide absolute assurance that its objectives will be met. Similarly, an evaluation of controls cannot provide absolute assurance that misstatements due to error or fraud will not occur or that all control issues and instances of fraud, if any, have been detected.

## Risk factors

As filed, 21,501 characters.

*Investing in our common stock involves a high degree of risk. You should carefully consider the following risks and uncertainties, those risks and uncertainties discussed in “Part I, Item 1A, Risk Factors” in our 2024 Annual Report, as amended and supplemented by the information in our subsequent Quarterly Reports on Form 10-Q, together with all of the other information contained in this Quarterly Report, including our unaudited condensed consolidated financial statements and the related notes appearing elsewhere in this Quarterly Report. The risk factor disclosure in our 2024 Annual Report and subsequent Quarterly Reports on Form 10-Q is qualified by the information that is described in this Quarterly Report. If any of the risks described below or in our 2024 Annual Report actually occur, our business, prospects, operating results and financial condition could suffer materially. In such event, the trading price of our common stock could decline and you might lose all or part of your investment.*

*Other than as set forth below, there have been no material changes to the risk factors set forth in our 2024 Annual Report.*

***We have incurred significant operating losses since our inception and anticipate that we will incur continued losses for the foreseeable future.***

Since our inception, we have focused substantially all of our efforts and financial resources on developing our proprietary QuEENTM discovery engine, our proprietary MGD library and our initial pipeline of product candidates. To date, we have financed our operations primarily through the issuance and sale of convertible promissory notes, convertible preferred stock, public offerings of our common stock or warrants to purchase common stock, registered direct offerings, and our collaboration agreements with Roche and Novartis. From our inception through the date hereof, we raised an aggregate of $836.0 million of gross proceeds from such transactions. As of June 30, 2025, our cash, cash equivalents, restricted cash and marketable securities were $295.5 million. We have incurred significant operating losses since our inception, and we had an accumulated deficit of $404.0 million as of June 30, 2025. For the six months ended June 30, 2025, we reported net income of $34.6 million. For the years ended December 31, 2024 and 2023, we reported net losses of $72.7 million and $135.4 million, respectively. Substantially all of our operating losses have resulted from costs incurred in connection with our research and initial pipeline programs and from general and administrative costs associated with our operations. We expect to continue to incur significant expenses and increasing operating losses over the next several years and for the foreseeable future. Our prior losses, combined with expected future losses, have had and will continue to have an adverse effect on our stockholders’ deficit and working capital. We expect our expenses to significantly increase in connection with our ongoing activities, as we:

- conduct our clinical trial for MRT-2359, our MGD product candidate targeting GSPT1;
- finalize our Phase 1 clinical trial for MRT-6160, our MGD candidate targeting VAV1 for immune-mediated conditions and, if applicable, co-fund any global clinical development of Phase 3 onward;
- finalize our Phase 1 clinical trial for MRT-8102, our NEK7-directed MGD being developed for the treatment of inflammatory conditions driven by the NLRP3 inflammasome, IL-1β, and IL-6;
- continue preclinical activities for our NEK7, CDK2, CCNE1, and other currently undisclosed programs;
- prepare and submit IND applications with the FDA for other current and future product candidates;
- complete preclinical studies for current or future product candidates;
- progress MGD molecules from our initial programs through lead optimization to development candidates and multiple areas of interest and indication;
- initiate and complete clinical trials for current or future product candidates;
- expand and improve the capabilities of our QuEENTM discovery engine;
- continue to build our proprietary library of MGDs;
- contract to manufacture our product candidates;
- advance research and development related activities to expand our product pipeline;
- seek regulatory approval for our product candidates that successfully complete clinical development;
- develop and scale up our capabilities to support our ongoing preclinical activities and future clinical trials for our product candidates and commercialization of any of our product candidates for which we may obtain marketing approval;
- maintain, expand, and protect our intellectual property portfolio;
- hire additional staff, including clinical, scientific and management personnel; and
- secure facilities to support continued growth in our research, development and commercialization efforts.

In addition, if we obtain marketing approval for our current or future product candidates, we will incur significant expenses relating to our commercialization of such product candidates via our sales, marketing, product manufacturing and distribution efforts. Because of the numerous risks and uncertainties associated with developing pharmaceutical drugs, including in light of economic fluctuations, we are unable to predict the extent of any future losses or when we will become profitable, if at all.

Even if we achieve profitability, we may not be able to sustain or increase our profitability on a quarterly or annual basis. Our failure to become and remain profitable would depress the value of our company and could impair our ability to raise capital, expand our business, maintain our development efforts, obtain product approvals, diversify our offerings or continue our operations. A decline in the value of our company could also cause you to lose all or part of your investment.

***Preclinical and clinical drug development is a lengthy and expensive process, with an uncertain outcome. Our preclinical and clinical programs may experience delays or may never advance, which would adversely affect our ability to obtain regulatory approvals or commercialize our product candidates on a timely basis or at all, which could have an adverse effect on our business.***

In order to obtain FDA approval to market a new small molecule product, we must demonstrate the safety and efficacy of our product candidates in humans to the satisfaction of the FDA. To meet these requirements, we will have to conduct adequate and well-controlled clinical trials. Clinical testing is expensive, time-consuming and subject to uncertainty. Before we can commence clinical trials for a product candidate, we must complete extensive preclinical studies that support our planned and future INDs in the United States. Other than MRT-2359, which is being evaluated in an ongoing clinical trial, MRT-6160 and MRT-8102, both of which are being evaluated in Phase 1 single ascending dose/multiple ascending dose studies, we are currently selecting lead development candidates for preclinical development. We cannot be certain of the timely completion or outcome of our preclinical studies and cannot predict if the FDA will allow our proposed clinical programs to proceed or if the outcome of our preclinical studies will ultimately support further development of our programs. We cannot be sure that we will be able to submit INDs or similar applications with respect to our other product candidates on the timelines we expect, if at all, and we cannot be sure that submission of an IND or similar applications will result in the FDA or other regulatory authorities allowing clinical trials to begin.

Conducting preclinical testing and clinical trials represents a lengthy, time-consuming and expensive process. The length of time may vary substantially according to the type, complexity and novelty of the program, and often can be several years or more per program. Delays associated with programs for which we are directly conducting preclinical studies may cause us to incur additional operating expenses. The commencement and rate of completion of preclinical studies and clinical trials for a product candidate may be delayed by many factors, including, for example:

- inability to generate sufficient preclinical or other in vivo or in vitro data to support the initiation of clinical studies;
- timely completion of preclinical laboratory tests, animal studies and formulation studies in accordance with the FDA’s good laboratory practice requirements and other applicable regulations;
- approval by an independent Institutional Review Board, or IRB, ethics committee at each clinical site before each trial may be initiated;
- delays in reaching a consensus with regulatory agencies on study design and obtaining regulatory authorization to commence clinical trials;
- delays in reaching agreement on acceptable terms with prospective contract research organizations, or CROs, and clinical trial sites, the terms of which can be subject to extensive negotiation and may vary significantly among different CROs and clinical trial sites;
- delays in identifying, recruiting and training suitable clinical investigators;
- delays in recruiting suitable patients to participate in our clinical trials;
- delays in manufacturing, testing, releasing, validating or importing/exporting sufficient stable quantities of our product candidates for use in clinical trials or the inability to do any of the foregoing;
- insufficient or inadequate supply or quality of product candidates or other materials necessary for use in clinical trials, or delays in sufficiently developing, characterizing or controlling a manufacturing process suitable for clinical trials;
- imposition of a temporary or permanent clinical hold by regulatory authorities;
- developments on trials conducted by competitors for related technology that raises FDA or foreign regulatory authority concerns about risk to patients of the technology broadly, or if the FDA or a foreign regulatory authority finds that the investigational protocol or plan is deficient to meet its stated objectives;
- delays in recruiting, screening and enrolling patients and delays caused by patients withdrawing from clinical trials or failing to return for post-treatment follow-up;
- difficulty collaborating with patient groups and investigators;
- failure by our CROs, other third parties or us to adhere to clinical trial protocols;
- failure to perform clinical trials in accordance with the FDA’s good clinical practice requirements, or GCPs, or applicable regulatory guidelines in other countries;
- occurrence of adverse events associated with the product candidate that are viewed to outweigh its potential benefits, or occurrence of adverse events in a trial of the same class of agents conducted by other companies;
- changes to the clinical trial protocols;
- clinical sites dropping out of a trial;
- changes in regulatory requirements and guidance that require amending or submitting new clinical protocols;
- changes in the standard of care on which a clinical development plan was based, which may require new or additional trials;
- selection of clinical endpoints that require prolonged periods of observation or analyses of resulting data;
- the cost of clinical trials of our product candidates being greater than we anticipate;
- clinical trials of our product candidates producing negative or inconclusive results, which may result in our deciding, or regulators requiring us, to conduct additional clinical trials or abandon development of such product candidates;
- transfer of manufacturing processes to larger-scale facilities operated by a contract manufacturing organization, or CMO, and delays or failure by our CMOs or us to make any necessary changes to such manufacturing process; and
- third parties being unwilling or unable to satisfy their contractual obligations to us.

Further, conducting clinical trials in foreign countries, as we may do for our product candidates, presents additional risks that may delay completion of our clinical trials. These risks include the failure of enrolled patients in foreign countries to adhere to clinical protocol as a result of differences in healthcare services or cultural customs, managing additional administrative burdens associated with foreign regulatory schemes, as well as political and economic risks relevant to such foreign countries. Delays in the completion of any preclinical studies or clinical trials of our product candidates will increase our costs, slow down our product candidate development and approval process and delay or potentially jeopardize our ability to commence product sales and generate product revenue. In addition, many of the factors that cause, or lead to, a delay in the commencement or completion of clinical trials may also ultimately lead to the denial of regulatory approval of our product candidates. Any delays to our preclinical studies or clinical trials that occur as a result could shorten any period during which we may have the exclusive right to commercialize our product candidates and our competitors may be able to bring products to market before we do, and the commercial viability of our product candidates could be significantly reduced. Any of these occurrences may harm our business, financial condition and prospects significantly.

***Our business is dependent on the success of our lead programs, and any other product candidates that we advance into the clinic. We cannot be certain that we will be able to obtain regulatory approval for, or successfully commercialize, any of our current or future product candidates.***

All of our pipeline programs other than MRT-2359, MRT-6160 and MRT-8102 are currently in preclinical development. The preclinical studies and future clinical trials of our current or future product candidates are, and the manufacturing and marketing of our current or future product candidates will be, subject to extensive and rigorous review and regulation by numerous government authorities in the U.S. and in other countries where we intend to test or, if approved, market any of our current or future product candidates. Before obtaining regulatory approvals for the commercial sale of any of our current or future product candidates, we must demonstrate through preclinical studies and clinical trials that each product candidate is safe and effective for use in each target indication. Drug development is a long, expensive and uncertain process, and delay or failure can occur at any stage of any of our preclinical studies and clinical trials. This process can take many years and may include post-marketing studies and surveillance, which will require the expenditure of substantial resources beyond the proceeds we raised in our IPO. Of the large number of drugs in development in the U.S., only a small percentage will successfully complete the FDA regulatory approval process and will be commercialized, with similarly low rates of success for drugs in development in the European Union obtaining regulatory approval from the European Medicines Agency, or EMA. Accordingly, even if we are able to obtain the requisite financing to continue to fund our development and preclinical studies and clinical trials, we cannot assure you that any of our current or future product candidates will be successfully developed or commercialized.

We are not permitted to market our current or future product candidates in the U.S. until we receive approval of a new drug application, or NDA, from the FDA, or in the European Economic Area, until we receive approval of a marketing authorization application, or an MAA, from the European Commission, or in any other foreign countries until we receive the requisite approval from such countries. Obtaining approval of an NDA or MAA is a complex, lengthy, expensive, and uncertain process, and the FDA or EMA may delay, limit or deny approval of any of our current or future product candidates for many reasons, including, among others:

- we may not be able to demonstrate that our current or future product candidates are safe and effective in treating their target indications to the satisfaction of the FDA or applicable foreign regulatory agency;
- the results of our preclinical studies and clinical trials may not meet the level of statistical or clinical significance required by the FDA or applicable foreign regulatory agency for marketing approval;
- the FDA or applicable foreign regulatory agency may disagree with the number, design, size, conduct or implementation of our preclinical studies and clinical trials;
- the FDA or applicable foreign regulatory agency may require that we conduct additional preclinical studies and clinical trials;
- we may be unable to demonstrate that a product candidate’s clinical and other benefits outweigh its safety risks;
- the FDA or applicable foreign regulatory agency may not approve the formulation, labeling or specifications of any of our current or future product candidates;
- the CROs that we retain to conduct our preclinical studies and clinical trials may take actions outside of our control that materially adversely impact our preclinical studies and clinical trials;
- the FDA or applicable foreign regulatory agency may find the data from preclinical studies and clinical trials insufficient to demonstrate that our current or future product candidates’ clinical and other benefits outweigh their safety risks;
- the FDA or applicable foreign regulatory agency may disagree with our interpretation of data from our preclinical studies and clinical trials;
- the FDA or applicable foreign regulatory agency may not accept data generated at our preclinical study and clinical trial sites;
- if our NDA, if and when submitted, is reviewed by an advisory committee, the FDA may have difficulties scheduling an advisory committee meeting in a timely manner or the advisory committee may recommend against approval of our application or may recommend that the FDA require, as a condition of approval, additional preclinical studies or clinical trials, limitations on approved labeling or distribution and use restrictions;
- the FDA may require development of a Risk Evaluation and Mitigation Strategy, or REMS, as a condition of approval or post-approval;
- the FDA or the applicable foreign regulatory agency may determine that the manufacturing processes or facilities of third-party manufacturers with which we contract do not conform to applicable requirements, including current Good Manufacturing Practices, or cGMPs;
- the FDA or applicable foreign regulatory agency may be delayed in their review processes due to staffing or other constraints arising from public health crises; or
- the FDA or applicable foreign regulatory agency may change its approval policies or adopt new regulations.

Any of these factors, many of which are beyond our control, could jeopardize our ability to obtain regulatory approval for and successfully market our current or future product candidates. In addition, the FDA and other applicable foreign regulatory agencies have substantial discretion in the approval process and determining when or whether regulatory approval will be granted for any product candidate that we develop and may decide that our data are insufficient for approval or require additional preclinical, clinical, or other data. The U.S. Supreme Court’s July 2024 decision to overturn prior established case law giving deference to regulatory agencies’ interpretations of ambiguous statutory language has introduced uncertainty regarding the extent to which FDA’s regulations, policies and decisions may become subject to increasing legal challenges, delays, and/or changes. Any setbacks in our pursuit of regulatory approval would have a material adverse effect on our business and prospects.

***Significant economic, trade, regulatory, or geopolitical developments, and other circumstances beyond our control, could have a material effect on our financial condition or results of operations.***

Significant economic, trade, regulatory, or geopolitical developments are difficult to predict and may have a material effect on us. The U.S. recently imposed tariffs on virtually all imports to the U.S. and significantly higher reciprocal tariffs applicable to imports from many countries, certain of which reciprocal tariffs were subsequently temporarily paused. If tariffs are broadly imposed it could lead to additional corresponding punitive actions by the countries with which the U.S. trades. Historically, tariffs have led to increased trade and political tensions, between not only the U.S. and China, but also between the U.S. and other countries in the international community. Political tensions could reduce trade volume, investment, technological exchange and other economic activities between major international economies, resulting in a material adverse effect on global economic conditions and the stability of global financial markets. Any changes in political, trade, regulatory, and economic conditions, or new legislative and/or regulatory developments, could have a material adverse effect on our financial condition or results of operations. Until we know how such changes may impact our business and the business of our competitors, suppliers and other parties we work with over the long term, we will not know if, overall, we will benefit from them or be negatively affected by them.

Filed Aug 7, 2025.
Source: SEC EDGAR, the filing index for accession 0000950170-25-104550. Last ingested by Listed: Oct 24, 2026, 15:15 ET. No prices; not investment advice.
