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GLUE US Equity

Monte Rosa Therapeutics, Inc.Health Care · Biological Products, (No Diagnostic Substances) · CIK 1826457 · FY ends Dec 31
$15.77
+0.74 (+4.92%)
USD · as of 2026-08-19 · marketstack

GLUE · 10-K · period ended 2022-12-31

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filed 2023-03-16 · EDGAR original ↗

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

You should read the following discussion and analysis of our financial condition and results of operations together with our consolidated financial statements and related notes included elsewhere in this Annual Report on Form 10-K. This discussion contains forward-looking statements that involve risks and uncertainties, including those described in the section titled “Special Note Regarding Forward Looking Statements.” Our actual results and the timing of selected events could differ materially from those discussed below. Factors that could cause or contribute to such differences include, but are not limited to, those identified below and those set forth under the section titled “Risk Factors” included elsewhere in this Annual Report.

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 platform, 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, Monte Rosa Therapeutics, Inc. and Monte Rosa Therapeutics AG, entities under common control since the incorporation of Monte Rosa Therapeutics, Inc., consummated a contribution and exchange agreement, or the Contribution and Exchange, whereby Monte Rosa Therapeutics, Inc. acquired the net assets and shareholdings of Monte Rosa Therapeutics AG via a one-for-one exchange of equity between Monte Rosa Therapeutics, Inc. and the shareholders of Monte Rosa Therapeutics AG in a common control reorganization. We are headquartered in Boston, Massachusetts with research operations in both Boston and Basel, Switzerland. To date, we have been financed primarily through the issuance of convertible promissory notes, convertible preferred stock, and common stock.

Liquidity

To date, we have financed our operations primarily through the issuance and sale of convertible promissory notes and our convertible preferred stock to outside investors in private equity financings, our initial public offering and at-the-market offerings. From our inception through the date hereof, we raised an aggregate of $499.8 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. Our net loss was $108.5 million and $74.0 million for the years ended December 31, 2022 and 2021, respectively. As of December 31, 2022, we had an accumulated deficit of $230.5 million and $268.1 million of cash, cash equivalents, restricted cash, and marketable securities.

Business effects of COVID-19

The COVID-19 pandemic has presented a substantial public health and economic challenge around the world and has affected, and may continue to affect our employees, patients, communities and business operations, as well as the U.S. economy and financial markets. To date, our financial conditions and operations have not been significantly impacted by the COVID-19 pandemic; however, the full extent to which the COVID-19 pandemic will directly or indirectly impact our business, results of operations, liquidity and financial condition will depend on future developments, which are highly uncertain and cannot be accurately predicted, including new information that may develop concerning COVID-19, the emergence of new variants and subvariants and the actions taken to contain it or treat its impact and the economic impact on local, regional, national and international markets.

For additional information on the various risks posed by the COVID-19 pandemic, please read the section entitled “Risk Factors” in this Annual Report.

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Components of operating results

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 platform and advancement of our GSPT1 program, advancement of our disclosed and undisclosed programs including for CDK2, NEK7, VAV1, and multiple sickle cell disease, or SCD targets. We have not reported program costs since our inception because we have not historically tracked or recorded our research and development expenses on a program-by-program basis. We use our personnel and infrastructure resources across the breadth of our research and development activities, which are directed toward identifying and developing product candidates.

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.

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 and 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; (ii) gains and losses on transactions of our Swiss subsidiary denominated in currencies other than the U.S. Dollar; (iii) proceeds from the sale of lab equipment; and (iv) changes in the fair value of our preferred stock tranche obligations.

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Results of operations for the years ended December 31, 2022 and 2021

The following sets forth our results of operations:

Year ended December 31,

Operating expenses:

Research and development expenses

Research and development expenses were comprised of:

Year ended December 31,

As of December 31, 2022, and December 31, 2021, respectively, we had 100 and 73 employees engaged in research and development activities in our facilities in the U.S. and Switzerland.

Most of our research and development expenses have been related to the development of our QuEENTM platform, advancement of our GSPT1 program, including IND-enabling work for MRT-2359, and the advancement of our disclosed and undisclosed programs, including for CDK2, NEK7, VAV1, multiple SCD targets, and other discovery efforts. The increase for the year ended December 31, 2022, as compared to 2021 was primarily due to the expansion of research and development activities in the United States and Switzerland including increased headcount and facilities as well as corresponding increases in laboratory related expenses. Research and development expenses included non-cash stock-based compensation of $6.1 million and $2.6 million for the years end December 31, 2022, and 2021, respectively.

General and administrative expenses

General and administrative expenses to support our business activities were comprised of:

Year ended December 31,

As of December 31, 2022, and December 31, 2021, respectively, we had 23 and 20 employees engaged in general and administrative activities principally in our U.S. facility. Personnel and professional service costs increased in the year ended December 31, 2022, as compared to 2021 as a result of increased headcount and expenses in support of our growth and operations as a public company. General and administrative expenses included non-cash stock-based compensation of $5.6 million and $2.6 million for the years end December 31, 2022, and 2021, respectively.

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Other expenses, net

Other income (expense), net was comprised of:

Year ended December 31,

Interest income, net $ 3,764 $ 46

Foreign currency exchange gain (loss), net 10 (162 )

Gain on disposal of fixed assets 109 —

Changes in fair value of preferred stock tranche obligations, net — (960 )

Other income (expense) $ 3,883 $ (1,076 )

The increase in interest and other income for the year ended December 31, 2022, is principally attributable to interest income on marketable securities purchased in 2022.

Foreign exchange gains on transactions of our Swiss subsidiary denominated in currency other than the U.S. dollar increased in the year ended December 31, 2022, as to compared to the year ended December 31, 2021, principally due to the strengthening of the U.S Dollar with respect to, principally, the Swiss Franc.

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 sale of convertible preferred stock and common stock.

In July 2022, we entered into a sales agreement, or the Sales Agreement, with Jefferies LLC, or Jefferies, pursuant to which we may offer and sell shares of our common stock having aggregate gross proceeds of up to $100 million from time to time in at-the-market offerings through Jefferies as sales agent. During the year ended December 31, 2022, we sold 2,482,008 shares of our common stock resulting in net proceeds of $19.7 million.

As of December 31, 2022, we had cash, cash equivalents, restricted cash, and marketable securities, of $268.1 million and an accumulated deficit of $230.5 million. We believe that our cash, cash equivalents, restricted cash, and marketable securities will be sufficient to fund our planned operations for at least one year past the issuance date of these financial statements.

Cash flows

The following table summarizes our cash flows for the periods indicated:

Year ended December 31,

Net cash (used in) provided by:

Operating activities

During the year ended December 31, 2022, net cash used in operating activities of $92.5 million was attributable to our net loss of $108.5 million and a $2.1 million net change in our operating assets and liabilities, off-set by $18.2 million in non-cash charges. Non-cash charges primarily include stock-based compensation expense of $11.7 million, depreciation expense of $3.7 million, and non-cash lease expense of $4.8 million.

During the year ended December 31, 2021, net cash used in operating activities of $59.4 million was attributable to our net loss of $74.0 million off-set by a $6.3 million net change in our operating assets and liabilities and $8.3 million in non-cash charges. Non-cash charges include stock-based compensation expense of $5.2 million, depreciation expense of $2.1 million, and changes in the fair value of our preferred stock tranche obligation of $1.0 million.

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Investing activities

Cash used in investing activities of $219.2 million during the year ended December 31, 2022, was primarily attributable to purchases of marketable securities of $384.4 million and purchases of property and equipment of $12.9 million, off-set by proceeds from the maturity of marketable securities of $178.0 million.

For the year ended December 31, 2021, our investing activities consisted of purchases of property and equipment of $9.7 million.

Financing activities

Net cash provided by financing activities for the year ended December 31, 2022, amounted to $20.5 million principally attributable to the sale of 2,482,008 shares of common stock sold in an at-the-market offering pursuant to the Sales Agreement for aggregate net proceeds $19.7 million after deducting underwriters discounts and commissions and other offering costs, proceeds from the exercise of stock options of $0.4 million, and proceeds from the issuance of shares under our employee stock purchase plan of $0.3 million.

Net cash provided by financing activities for the year ended December 31, 2021, amounted to $377.6 million comprised principally of aggregate net proceeds upon the issuance of our Series B and Series C convertible preferred stock in February and March 2021, respectively, and the issuance of common stock in our IPO in June 2021.

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 potentially 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 the existing cash, cash equivalents, restricted cash, and marketable securities of $268.1 million, 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;

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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;

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, the COVID-19 pandemic 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 management’s discussion and analysis of our financial condition and results of operations is based on our consolidated financial statements, which have been prepared in accordance with U.S. generally accepted accounting principles, or GAAP. The preparation of these consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported expenses incurred during the reporting periods. Our estimates are based on our historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

We believe that the accounting policies discussed below are critical to understanding our historical and future performance, as these policies relate to the more significant areas involving management’s judgments and estimates.

Research and development expense and accruals

We record research and development expenses to operations as incurred. Research and development expenses represent costs incurred by us for development of our technology platform and the discovery and development of our product candidates and include: employee-related expenses, including salaries, benefits and non-cash stock-based compensation expense; external research and development expenses incurred under arrangements with third parties, including preclinical testing organizations, non-profit institutions and consultants; and other expenses, which include direct and allocated expenses for laboratory, facilities and other costs.

As part of the process of preparing financial statements, we are required to estimate and accrue expenses. We estimate costs of research and development activities conducted by service providers. Payments made prior to the receipt of goods or services to be used in research and development are deferred and recognized as expense in the period in which the related goods are received or services are rendered. If the costs have been prepaid, this expense reduces the prepaid expenses in the balance sheet, and if not yet invoiced, the costs are included in accrued expenses in the balance sheet. We classify such prepaid assets as current or non-current assets based on our estimates of the timing of when the goods or services will be realized or consumed. These costs are a significant component of our research and development expenses.

We estimate these costs based on factors such as estimates of the work completed and budget provided and in accordance with agreements established third-party service providers. We estimate the amount of work completed through discussions with internal personnel and external service providers as to the progress or stage of completion of the services and the agreed-upon fee to be paid for such services. We make significant judgments and estimates in determining the accrued expense balance in each reporting period. As actual costs become known, we adjust our estimates. Although we do not expect our estimates to be materially different from amounts actually incurred, our understanding of the status and timing of services performed may vary from our estimates and could result in us reporting amounts that are too high or too low in any particular period. Our

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accrued expenses are dependent, in part, upon the receipt of timely and accurate reporting from external third-party service providers. Amounts ultimately incurred in relation to amounts accrued for these services at a reporting date may be substantially higher or lower than our estimates.

We have and may continue to enter into license agreements to access and utilize certain technology. We evaluate if the license agreement is an acquisition of an asset or a business. To date none of our license agreements have been considered to be an acquisition of a business. For asset acquisitions, the upfront payments to acquire such licenses, as well as any future milestone payments made before product approval, are immediately recognized as research and development expense when due, provided there is no alternative future use of the rights in other research and development projects.

Stock-based compensation

We account for stock-based compensation by measuring and recognizing compensation expense for all share-based awards made to employees and directors based on estimated grant-date fair values. We use the straight-line method to allocate compensation cost to reporting periods over the requisite service period, which is generally the vesting period, and estimate the fair value of share-based awards to employees and directors using the Black-Scholes option-pricing valuation model. The Black-Scholes model requires the input of subjective assumptions, including fair value of common stock, expected term, expected volatility, risk-free interest rate and expected dividends, which are described in greater detail below.

Fair Value of Common Stock—Prior to the IPO, as there was no public market for our common stock, the board of directors determined the fair value of our common stock by taking into consideration, among other things, timely valuations of our common stock prepared by an unrelated third-party valuation firm in accordance with the guidance provided by the American Institute of Certified Public Accountants Practice Guide, Valuation of Privately-Held-Company Equity Securities Issued as Compensation. Given the absence of a public trading market for our common stock prior to our IPO, our board of directors exercised reasonable judgment and considered a number of objective and subjective factors to determine the best estimate of the fair value of our common stock, including our stage of development; progress of our research and development efforts; the rights, preferences and privileges of our convertible preferred stock relative to those of our common stock; equity market conditions affecting comparable public companies and the lack of marketability of our common stock. Since the completion of our IPO, the fair value of each share of common stock underlying stock option grants is based on the closing price of our common stock on the Nasdaq Global Select Market as reported on the date of grant.

Expected Term—The expected term of the options represents the average period the stock options are expected to remain outstanding. As we do not have sufficient historical information to develop reasonable expectations about future exercise patterns and post-vesting employment termination behavior, the expected term of options granted is derived from the average midpoint between the weighted average vesting and the contractual term, also known as the simplified method.

Expected Volatility— Since we have only recently become a public company and have only a limited trading history for our common stock, the expected volatility was estimated based on the average historical volatilities of common stock of comparable publicly traded entities over a period equal to the expected term of the stock option grants. We selected companies with comparable characteristics, including enterprise value, risk profiles, position within the industry, and, where applicable, with historical share price information sufficient to meet the expected life of our stock-based awards. We will continue to apply this process until enough historical information regarding the volatility of our own stock price becomes available.

Risk-Free Interest Rate—The risk-free interest rate is based on the yield of zero-coupon U.S. Treasury notes as of the grant date with maturities commensurate with the expected term of the awards.

Expected Dividends—The expected dividends assumption is based on our expectation of not paying dividends in the foreseeable future; therefore, we used an expected dividend yield of zero.

Recently issued and adopted accounting pronouncements

Refer to Note 2, “Summary of Significant Accounting Policies,” in the accompanying notes to our consolidated financial statements appearing elsewhere in this Annual Report for a discussion of recent accounting pronouncements.

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Contractual obligations and commitments

License agreement

In April 2018, we entered into separate license, collaboration, and investment agreements with CRT and the ICR for the purpose of development in the field of cereblon-mediated protein degradation. Pursuant to the License Agreement, CRT and the ICR granted us certain exclusive and non-exclusive, worldwide, and sublicensable licenses under CRT’s and the ICR’s intellectual property rights in the field of cereblon mediated protein degradation to discover, research, develop, have developed, use, keep, make, have made, market, import, offer for sale, and sell products in the field of cereblon-mediated protein degradation.

In consideration for the rights granted under the License Agreement, we issued an aggregate of 1,132,984 common shares to CRT, the ICR and affiliated founding scientists pursuant to the Formation and Investment Agreement for an aggregate purchase price of CHF 40,000 and paid CRT an immaterial technology access fee. The License Agreement will remain effective until terminated by written agreement between us, CRT and the ICR.

Under the Collaboration Agreement, we may be obligated to make certain milestone payments for achieving specific clinical progression events for certain products, solely to the extent such products are subject to the Collaboration Agreement. If owed, these milestones would aggregate up to $7 million for any covered first product candidate and $3.5 million for any subsequent product candidate. In addition, the Company may be obligated to pay low single-digit royalties on net sales for any covered product on a country by country basis until the later of (a) the date when the manufacture, use, offer for sale, sale or importation of such product is no longer covered by a valid claim in the country of sale, use or manufacture; (b) ten years from the first commercial sale of such product in the relevant country; and (c) the expiry of any extended exclusivity period granted with respect to an orphan drug designation, pediatric designation or other exclusivity in the relevant country. See the section entitled “Business—Our services, collaboration and licenses agreements” elsewhere in this Annual Report as well as Note 8 to our annual consolidated financial statements appearing elsewhere in this Annual Report for a description of our collaboration and license agreements.

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Item 7A. Quantitative and Qualitative Disclosures About Market Risk

Not applicable.

Item 8. Financial Statements and Supplementary Data

The financial information required by Item 8 is located beginning on page F-1 of this Annual Report.

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Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure

None.

Item 9A. Controls and Procedures

Limitations on effectiveness of controls and procedures

In designing and evaluating our disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints, and that management is required to apply judgment in evaluating the benefits of possible controls and procedures relative to their costs.

Evaluation of disclosure controls and procedures

Our management, with the participation of our principal executive officer and principal financial officer, evaluated, as of December 31, 2022, the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act). Based on the evaluation, our principal executive officer and principal financial officer concluded that, as of December 31, 2022, our disclosure controls and procedures as of such date are effective at the reasonable assurance level.

Management’s annual report on internal control over financial reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Rule 13a-15(f) under the Exchange Act. Our management conducted an assessment of the effectiveness of our internal control over financial reporting based on the criteria set forth in “Internal Control - Integrated Framework (2013)” issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, our management concluded that, as of December 31, 2022, our internal control over financial reporting was effective.

This Annual Report on Form 10-K does not include an attestation report of our independent registered public accounting firm due to a transition period established by rules of the SEC for “emerging growth companies”.

Changes in Internal Control over Financial Reporting

Material weaknesses, previously disclosed in the Annual Report on Form 10-K for the period ending December 31, 2021, and the subsequently filed Form 10-Qs, have been remediated as of December 31, 2022. There were no other changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the quarter ended December 31, 2022, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Item 9B. Other Information

None.

Item 9C. Disclosure Regarding Foreign Jurisdictions That Prevent Inspections

Not applicable.

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PART III

Item 10. Directors, Executive Officers and Corporate Governance

Information required by this Item 10 will be set forth in the “Proposal No. 1 – Election of Class II Directors” and “Corporate Governance” sections of our definitive proxy statement relating to our 2023 annual meeting of shareholders, or the Proxy Statement, which will be filed with the Securities and Exchange Commission within 120 days after the end of the year covered by this Annual Report.

Item 11. Executive Compensation

Information required by this Item 11 will be set forth in the “Corporate Governance” section of the Proxy Statement, which will be filed with the Securities and Exchange Commission within 120 days after the end of the year covered by this Annual Report.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Information required by this Item 12 will be set forth in the “Principal Stockholders” section of the Proxy Statement, which will be filed with the Securities and Exchange Commission within 120 days after the end of the year covered by this Annual Report.

Item 13. Certain Relationships and Related Transactions, and Director Independence

Information required by this Item 13 will be set forth in the “Corporate Governance” and “Certain Relationships and Related Party Transactions” sections of the Proxy Statement, which will be filed with the Securities and Exchange Commission within 120 days after the end of the year covered by this Annual Report.

Item 14. Principal Accounting Fees and Services

Our independent public accounting firm is Deloitte & Touche LLP, Boston, Massachusetts, PCAOB Auditor ID No. 34. Information required by this Item 14 will be set forth in our Proxy Statement, which will be filed with the Securities and Exchange Commission within 120 days after the end of the year covered by this Annual Report.

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PART IV

Item 15. Exhibits, Financial Statement Schedules

(1)

For a list of the financial statements included herein, see Index to the Consolidated Financial Statements on page F-1 of this Annual Report on Form 10-K, incorporated into this Item by reference.

(2)

Financial statement schedules have been omitted because they are either not required or not applicable or the information is included in the consolidated financial statements or the notes thereto.

(3)

Exhibits:

ExhibitNumber Description

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21.1* List of Subsidiaries of the Registrant

101.SCH Inline XBRL Taxonomy Extension Schema Document

101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF Inline XBRL Taxonomy Extension Definition Linkbase Document

101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document

101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document

104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

* Filed herewith.

** Deemed to be furnished with this Annual Report on Form 10-K and will not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, except to the extent that the registrant specifically incorporates it by reference.

# Management compensatory plan, contract, or arrangement

† Portions of this exhibit (indicated by asterisks) will be omitted in accordance with the rules of the SEC.

Item 16. Form 10-K Summary

Not applicable.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized.

Company Name

Date: March 16, 2023 By: /s/ Markus Warmuth

Markus Warmuth

President and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this Report has been signed below by the following persons on behalf of the Registrant in the capacities and on the dates indicated.

Name Title Date

Markus Warmuth, M.D. (Principal Executive Officer)

/s/ Ajim Tamboli Chief Financial Officer March 16, 2023

/s/ Alexander Mayweg Director March 16, 2023

Alexander Mayweg

/s/ Ali Behbahani Director March 16, 2023

Ali Behbahani

/s/ Kimberly L. Blackwell Director March 16, 2023

Kimberly L. Blackwell

/s/ Andrew Schiff Director March 16, 2023

Andrew Schiff

/s/ Chandra P. Leo Director March 16, 2023

Chandra P. Leo

/s/ Christine Siu Director March 16, 2023

Christine Siu

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Index to Consolidated financial statements

Page

Report of independent registered public accounting firm (PCAOB ID No. 34) F-

Audited consolidated financial statements

Consolidated balance sheets F-2

-

Consolidated statements of operations and comprehensive income (loss) F-3

Consolidated statements of cash flows F-5

Consolidated financial statements F-6

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the stockholders and the Board of Directors of Monte Rosa Therapeutics, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Monte Rosa Therapeutics, Inc. and subsidiaries (the “Company”) as of December 31, 2022 and 2021, the related consolidated statements of operations and comprehensive income (loss), convertible preferred stock and stockholders’ equity (deficit), and cash flows, for each of the two years in the period ended December 31, 2022, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2022 and 2021, and the results of its operations and its cash flows for each of the two years in the period ended December 31, 2022, in conformity with accounting principles generally accepted in the United States of America.

Change in Accounting Principle

As discussed in Note 2 to the financial statements, effective January 1, 2022, the Company adopted FASB Accounting Standards Codification Topic 842, Leases, using the modified retrospective approach.

Basis for Opinion

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits, we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

/s/ Deloitte & Touche LLP

Boston, Massachusetts

March 16, 2023

We have served as the Company's auditor since 2021.

F-1

Monte Rosa Therapeutics, Inc.

Consolidated balance sheets

December 31,

(in thousands, except share and per share amounts) 2022 2021

Assets

Current assets:

Marketable securities 207,914 —

Other receivables 7,656 —

Prepaid expenses and other current assets 4,444 2,595

Current restricted cash 960 —

Operating lease right-of-use assets 34,832 —

Restricted cash, net of current 4,318 5,338

Other long-term assets 278 —

Liabilities and stockholders’ equity

Current liabilities:

Accrued expenses and other current liabilities 14,580 10,080

Current portion of operating lease liability 3,127 —

Defined benefit plan liability 1,533 2,176

Operating lease liability 43,874 —

Commitments and contingencies

Stockholders’ equity

Accumulated other comprehensive loss (1,752 ) (2,021 )

Total liabilities and stockholders’ equity $ 342,389 $ 366,329

See accompanying notes to the consolidated financial statements.

F-2

Monte Rosa Therapeutics, Inc.

Consolidated statements of operations and comprehensive income (loss)

Year ended December 31,

(in thousands, except share and per share amounts) 2022 2021

Operating expenses:

Other income (expense):

Foreign currency exchange gain (loss), net 10 (162 )

Gain on disposal of fixed assets 109 —

Changes in fair value of preferred stock tranche obligations, net — (960 )

Total other income (expense) 3,883 (1,076 )

Comprehensive loss:

Other comprehensive gain (loss):

Provision for pension benefit obligation 718 (965 )

Unrealized loss on available-for-sale securities (449 ) —

See accompanying notes to the consolidated financial statements.

F-3

Monte Rosa Therapeutics, Inc.

Consolidated statements of convertible preferred stock and stockholders’ equity (deficit)

Convertible preferred stock Common stock

Restricted common stock vesting — — 236,949 — — — — —

Exercise of common stock options — — 90,381 — 148 — — 148

Stock-based compensation expense — — — — 5,200 — — 5,200

Provision for pension benefit obligation — — — — — (965 ) (965 )

Restricted common stock vesting — — 136,058 — — — — —

Stock-based compensation expense — — — — 11,664 — — 11,664

Provision for pension benefit obligation — — — — — 718 — 718

Unrealized loss on available-for-sale securities — — — — — (449 ) — (449 )

Issuance of shares under employee stock purchase plan — — 51,947 — 336 — — 336

See accompanying notes to the consolidated financial statements.

F-4

Monte Rosa Therapeutics, Inc.

Consolidated statements of cash flows

Year ended December 31,

Cash flows from operating activities:

Adjustments to reconcile net loss to net cash used in operating activities

Noncash lease expense 4,814 —

Net accretion of discounts/premiums on marketable securities (1,945 ) —

Changes in fair value of preferred stock tranche obligations — 960

(Gain) loss on disposal of property and equipment (109 ) 17

Changes in operating assets and liabilities

Other receivables (187 ) —

Prepaid expenses and other current assets (2,127 ) (704 )

Accrued expenses and other current liabilities 1,031 6,587

Defined benefit plan liability 74 1,109

Right-of-use assets and operating lease liabilities (181 ) —

Net cash used in operating activities $ (92,466 ) $ (59,363 )

Cash flows from investing activities:

Purchases of property and equipment (12,911 ) (9,732 )

Proceeds from sale of property and equipment 109 79

Purchases of marketable securities (384,417 ) —

Proceeds from maturities of marketable securities 178,000 —

Net cash used in investing activities $ (219,219 ) $ (9,653 )

Cash flows from financing activities:

Proceeds from issuance of convertible preferred stock — 143,000

Payment of convertible preferred stock issuance costs — (231 )

Issuance of common stock, net of underwriting discount of $620 20,055 —

Payment of initial public offering issuance costs — (3,106 )

Payment of common stock issuance costs (364 ) —

Proceeds from exercise of employee stock options 439 149

Proceeds from employee stock purchase plan 336 —

Net cash provided by financing activities $ 20,466 $ 377,562

Cash, cash equivalents and restricted cash—beginning of period 351,409 42,863

Cash, cash equivalents and restricted cash—end of period $ 60,190 $ 351,409

Reconciliation of cash, cash equivalents and restricted cash

Total cash, cash equivalents and restricted cash $ 60,190 $ 351,409

Supplemental disclosure of noncash items

Conversion of convertible preferred stock into common stock $ — $ 231,172

Settlement of preferred stock tranche obligation $ — $ 20,640

Reduction of right-of-use assets for lease incentives receivable $ 7,469 $ —

See accompanying notes to the consolidated financial statements.

F-5

Monte Rosa Therapeutics, Inc.

Notes to the consolidated financial statements

1. Description of business and liquidity

Business

Monte Rosa Therapeutics, Inc. is a biotechnology company developing a portfolio of novel small molecule precision medicines that employ the body’s natural mechanisms to selectively degrade therapeutically-relevant proteins. As used in these consolidated financial statements, unless the context otherwise requires, references to the Company or Monte Rosa refer to Monte Rosa Therapeutics, Inc. and its wholly owned subsidiaries Monte Rosa Therapeutics AG and Monte Rosa Therapeutics Securities Corp. 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. The Company is headquartered in Boston, Massachusetts with research operations in both Boston and Basel, Switzerland.

Risks and uncertainties

The Company is subject to risks common to companies in the biotechnology industry including, but not limited to, the successful discovery and development of its product candidates, new technological innovations, protection of proprietary technology, dependence on key personnel, compliance with government regulations and the need to obtain additional financing.

Liquidity considerations

Since inception, the Company has devoted substantially all its efforts to business planning, research and development, recruiting management and technical staff, and raising capital and has financed its operations primarily through the issuance of convertible preferred shares and public offerings of the Company's common stock.

The Company’s continued discovery and development of its product candidates will require significant additional research and development efforts, including extensive preclinical and clinical testing and regulatory approval prior to commercialization. These efforts require significant amounts of additional capital, adequate personnel and infrastructure and extensive compliance-reporting capabilities. Even if product development efforts are successful, it is uncertain when, if ever, the Company will realize significant revenue from product sales.

As of December 31, 2022, the Company had an accumulated deficit of $230.5 million. The Company has incurred losses and negative cash flows from operations since inception, including net losses of $108.5 million and $74.0 million for the years ended December 31, 2022, and 2021, respectively. The Company expects that its operating losses and negative cash flows will continue for the foreseeable future as the Company continues to develop its product candidates. The Company currently expects that its cash, cash equivalents and marketable securities of $262.8 million as of December 31, 2022, will be sufficient to fund operating expenses and capital requirements for at least 12 months from the date the consolidated financial statements are issued. However, additional funding will be necessary to fund future discovery research, pre-clinical and clinical activities. The Company will seek additional funding through public financings, debt financings, collaboration agreements, strategic alliances and licensing arrangements. Although it has been successful in raising capital in the past, there is no assurance that the Company will be successful in obtaining such additional financing on terms acceptable to it, if at all, and the Company may not be able to enter into collaborations or other arrangements. If the Company is unable to obtain funding, it could be forced to delay, reduce or eliminate its research and development programs, product portfolio expansion or commercialization efforts, which could adversely affect the Company’s business prospects, even the ability to continue operations.

2. Summary of significant accounting policies

Basis of presentation

The accompanying consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America, or GAAP, and are stated in U.S. dollars. Any reference in these notes to applicable guidance is meant to refer to the authoritative GAAP as found in the Accounting Standards Codification and Accounting Standards Updates, or ASUs, of the Financial Accounting Standards Board, or FASB. All intercompany balances and transactions have been eliminated in combination or consolidation.

F-6

Use of estimates

The preparation of the consolidated financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and reported amounts of expenses during the reporting periods. Actual results could differ from those estimates. On an ongoing basis, the Company evaluates its estimates, including those related to accrued research and development expenses, other long-lived assets, pension benefit obligation, stock-based compensation and the valuation of deferred tax assets. The Company bases its estimates using historical experience, Company forecasts and future plans, current economic conditions, and information from third-party professionals that management believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities and recorded amounts of expenses that are not readily apparent from other sources and adjusts those estimates and assumptions when facts and circumstances dictate.

Currency and currency translation

The consolidated financial statements are presented in U.S. dollars, the Company’s reporting currency. The functional currency of the Company’s wholly owned subsidiary, Monte Rosa Therapeutics AG, is the U.S. dollar. Adjustments that arise from exchange rate changes on transactions denominated in a currency other than the functional currency are included in foreign currency exchange gain (loss), net in the consolidated statements of operations.

Cash, cash equivalents and restricted cash

The Company considers all highly liquid investments with original maturities at the date of purchase of three months or less to be cash equivalents. Cash and cash equivalents are stated at fair value and may include money market funds, U.S. Treasury and U.S. government-sponsored agency securities, corporate debt, commercial paper and certificates of deposit. The Company’s cash equivalents at December 31, 2022 and 2021 consist of bank demand deposits and money market fund investments.

The Company had restricted cash of $5.3 million as of December 31, 2022, and 2021, primarily related to security deposits on its leases for offices in Boston, Massachusetts and Basel, Switzerland.

Marketable securities

Investments in marketable securities are classified as available-for-sale. Available-for-sale securities are measured and reported at fair value using quoted prices in active markets for similar securities. Unrealized gains and losses on available-for-sale securities are reported as a separate component of stockholders’ equity. Premiums or discounts from par value are amortized to investment income over the life of the underlying investment. All of the Company’s available-for-sale securities are available to the Company for use in current operations. As a result, the Company classified all of these securities as current assets even though the stated maturity of some individual securities may be one year or more beyond the balance sheet date.

The cost of securities sold is determined on a specific identification basis, and realized gains and losses are included in other income (expense) within the consolidated statements of operations and comprehensive loss. If any adjustment is required to reflect a decline in the value of the investment that the Company considers to be “other than temporary”, the Company recognizes a charge to the consolidated statement of operations and comprehensive loss. No such adjustments were necessary during the periods presented.

Concentrations of credit risk and off-balance sheet risk

Financial instruments that potentially subject the Company to a concentration of credit risk consist primarily of cash and cash equivalents. The Company has invested in cash and cash equivalents at December 31, 2022 and 2021, held in a financial institution that management believes is creditworthy. These deposits may exceed federally insured limits. The Company has not experienced any losses historically in these accounts and believes it in not exposed to significant credit risk in its cash and cash equivalents. The Company has no significant off-balance sheet concentrations of credit risk, such as foreign currency exchange contracts, option contracts, or other hedging arrangements.

Fair value of financial instruments

Assets and liabilities recorded at fair value on a recurring basis in the balance sheets are categorized based upon the level of judgment associated with the inputs used to measure their fair values. Fair value is defined as the exchange price that would be received for an asset or an exit price that would be paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market

F-7

participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The authoritative guidance on fair value measurements establishes a three-tier fair value hierarchy for disclosure of fair value measurements as follows:

Level 1—Observable inputs such as unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date.

Level 2—Inputs (other than quoted prices included in Level 1) that are either directly or indirectly observable for the asset or liability. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active.

Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

To the extent that the valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgment. Accordingly, the degree of judgment exercised by the Company in determining fair value is greatest for instruments categorized in Level 3. A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value instrument.

Property and equipment

Property and equipment are stated at cost, subject to adjustments for impairments, less accumulated depreciation. Purchased assets that are not yet in service are classified as construction-in-process and no depreciation expense is recorded. Depreciation is calculated using the straight-line method over the estimated useful life of the asset as follows:

Asset Estimated useful life

Laboratory equipment Five years

Computer hardware Three years

Furniture and fixtures Five Years

Leasehold Improvements Shorter of useful life or remaining lease term

Maintenance and repairs that do not improve or extend the life of the respective asset are expensed as incurred. Upon disposal of an asset, the related cost and accumulated depreciation are removed from the accounts and any resulting gain or loss is included in the results of operations. Leasehold improvements are amortized over the shorter of the useful life or remaining term of the lease.

Impairment of long-lived assets

The Company evaluates whether current facts or circumstances indicate that the carrying values of its long-lived assets may not be recoverable. If such facts or circumstances are determined to exist, an estimate of the undiscounted future cash flows of these assets is compared to the carrying value the assets to determine whether impairment exists. If the assets are determined to be impaired, the loss is measured based on the difference between the fair value and carrying value of the assets. No material impairment losses were recorded during the periods presented.

Research and development expenses

Research and development costs are expensed as incurred. The Company’s research and development expenses consist primarily of costs incurred for the research and development of its product candidates and include expenses incurred under agreements with consultants to conduct preclinical and clinical studies, costs to acquire supplies for preclinical and clinical studies, salaries and related personnel costs, including stock-based compensation, depreciation and other allocated facility-related and overhead expenses.

Accrued research and development costs

The Company records accruals for estimated costs of discovery research activities, preclinical, and clinical studies. A portion of the Company’s research and development activities are conducted by third-party service providers. The financial terms of these contracts are subject to negotiation, which vary by contract and may result in payments that do not match the periods over which materials or services are provided. The Company accrues the costs incurred under the agreements based on an estimate of actual work completed in accordance with the agreements. In the event the Company makes advance payments for goods or services that will be used or rendered for future research and development activities, the payments are deferred and capitalized as a prepaid

F-8

expense and recognized as expense as the goods are received or the related services are rendered. Such payments are evaluated for current or long-term classification based on when they are expected to be realized. If the Company does not identify costs that have begun to be incurred or if the Company underestimates or overestimates the level of services performed or the costs of these services, actual expenses could differ from the Company’s estimates.

Preferred stock tranche obligations

Included in the terms of the Series A and Series B Preferred Stock Purchase Agreements were certain rights, or Tranche Rights, granted to the investors who purchased the Series A and Series B Preferred. The Series A Tranche Rights gave the investor the option to purchase up to an aggregate of 15,000,000 additional shares of Series A Preferred at $1.00 per share. The Series B Tranche Rights gave investors the option to purchase up to an aggregate of 24,000,000 shares of Series B Preferred at $2.00 per share. The Company concluded that both the Series A and the Series B Tranche Rights met the definition of a freestanding financial instrument, as the Series A and Series B Tranche Rights were legally detachable and separately exercisable from the Series A and Series B Preferred. At initial recognition, the Company recorded these Series A and Series B Tranche Rights as a liability on the balance sheets at its estimated fair value. The Series A and Series B Preferred Stock Tranche Obligations are subject to remeasurement at each balance sheet date, with changes in fair value recognized in changes in fair value of Preferred Stock Tranche Obligations on the Company’s consolidated statements of operations and comprehensive loss. Immediately prior to consummation of our IPO in June 2021, all outstanding shares of the Company's Series A, Series A-2, Series B and Series C convertible preferred stock were converted into 31,068,102 shares of common stock. As such, there was no value recorded for preferred stock tranche obligations on the consolidated balance sheets as of December 31, 2022 and 2021.

Stock-based compensation

Stock-based compensation expense related to stock options granted to employees, directors and non-employees is recognized based on the grant-date estimated fair values of the awards using the Black-Scholes option pricing model, or Black-Scholes. Stock-based compensation expense related to stock options and other stock based awards granted to employees and non-employees is recognized based on the grant-date fair value of the Company’s common stock. The value is recognized as expense ratably over the requisite service period, which is generally the vesting term of the award. For stock options with performance-based vesting conditions, the Company records the expense for these awards based upon the fair value of the awards on the date of grant and the number of shares expected to vest based on the terms of the underlying award agreement and the requisite service periods. The Company adjusts the expense for actual forfeitures as they occur. Stock-based compensation expense is classified in the accompanying consolidated statements of operations based on the function to which the related services are provided.

Income taxes

The Company uses the liability method to account for income taxes. Under this method, deferred tax assets and liabilities are determined based on differences between the financial statement carrying amounts of existing assets and liabilities and their tax bases. Deferred tax assets and liabilities are measured using enacted tax rates applied to taxable income in the years in which those temporary differences are expected to be recovered or settled. A valuation allowance is established when necessary to reduce deferred tax assets to the amount expected to be realized.

The Company assesses the likelihood of deferred tax assets being realized. A valuation allowance is provided when it is more likely than not that some portion or all of a deferred tax asset will not be realized. In assessing the realizability of deferred tax assets, the Company considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which the temporary differences representing net future deductible amounts become deductible.

The Company files U.S. federal and state income tax returns, as well as Swiss income tax returns. The Company’s tax positions are subject to audit. Financial statement effects of uncertain tax positions are recognized when it is more likely than not, based on the technical merits of the position, that it will be sustained upon examination. The Company evaluates uncertain tax positions on a regular basis. The evaluations are based on a number of factors, including changes in facts and circumstances, changes in tax law, correspondence with tax authorities during the course of the audit, and effective settlement of audit issues. Interest and penalties related to unrecognized tax benefits are included within the provision for income tax. To date, the Company has not been subject to any interest and penalties.

F-9

Defined pension benefit obligation

The Company maintains a mandatory pension for its employees in Switzerland through affiliation with the Swiss Life Collective BVG Foundation. All benefits in accordance with the regulations are reinsured in their entirety with Swiss Life Ltd within the framework of the corresponding contract. This plan is considered to be a defined benefit plan under GAAP.

The Company recognizes an asset for the plan’s overfunded status or a liability for the plan’s underfunded status in its consolidated balance sheets. Additionally, the Company measures the plan’s assets and obligations that determine its funded status as of the end of the year and recognizes the change in the funded status within the consolidated statements of operations and comprehensive loss.

The Company uses an actuarial valuation to determine its pension benefit costs and credits. The amounts calculated depend on a variety of key assumptions, including discount rates and expected return on plan assets. Details of the assumptions used to determine the net funded status are described in Note 12. The Company’s pension plan assets are assigned to their respective levels in the fair value hierarchy in accordance with the valuation principles described in the Fair Value of Financial Instruments section above.

Segments

Operating segments are defined as components of an entity for which separate financial information is available and that is regularly reviewed by the chief operating decision maker, or CODM, in deciding how to allocate resources to an individual segment and in assessing performance. The Company’s CODM is its chief executive officer. The Company manages its operations as a single segment for the purposes of assessing performance and making operating decisions.

Comprehensive income (loss)

Comprehensive income (loss) is defined as the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. The Company’s other comprehensive income (loss) includes adjustments to unrecognized pension benefit costs for Monte Rosa Therapeutics AG and changes in unrealized gains and losses from available-for-sale investments. The Company reported other comprehensive income of $0.3 million and incurred other comprehensive loss of $1.0 million, for the years ended December 31, 2022 and 2021, respectively.

Recently issued accounting pronouncements

The Company has elected to use the extended transition period for complying with new or revised accounting standards as available under the Jumpstart Our Business Startups Act (JOBS Act).

In June 2016, the FASB issued Accounting Standards Update No. 2016-13, Financial Instruments-Credit Losses: Measurement of Credit Losses on Financial Instruments. ASU 2016-13 requires measurement and recognition of expected credit losses for financial assets. In April 2019, the FASB issued clarification to ASU 2016-13 within ASU 2019-04, Codification Improvements to Topic 326, Financial Instruments-Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments, or ASU 2016-13. The guidance is effective for fiscal years beginning after December 15, 2022. The Company does not expect for ASU 2016-13 to have a material impact on its financial statements.

In August 2020, the FASB issued ASU No. 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging Contracts in Entity s Own Equity (Subtopic 815-40): Accounting forConvertible Instruments and Contracts in an Entity’s Own Equity. ASU 2020-06 will simplify the accounting for convertible instruments by reducing the number of accounting models for convertible debt instruments and convertible preferred stock. Limiting the accounting models results in fewer embedded conversion features being separately recognized from the host contract as compared with current GAAP. Convertible instruments that continue to be subject to separation models are (i) those with embedded conversion features that are not clearly and closely related to the host contract, that meet the definition of a derivative, and that do not qualify for a scope exception from derivative accounting and (ii) convertible debt instruments issued with substantial premiums for which the premiums are recorded as paid-in capital. ASU 2020-06 also amends the guidance for the derivatives scope exception for contracts in an entity’s own equity to reduce form-over-substance-based accounting conclusions. ASU 2020-06 will be effective for the Company beginning after December 15, 2023. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. The Company is currently assessing the impact adoption of ASU 2020-06 will have on the financial statements and disclosures.

F-10

Recently adopted accounting pronouncements

On January 1, 2022, the Company adopted Accounting Standard Update or ASU No. 2016-02, Leases (Topic 842), and its associated amendments using the modified retrospective transition approach by applying the new standard to all leases existing at the date of initial application and not restating comparative periods. There was no cumulative-effect adjustment recorded to retained earnings upon adoption. Under Topic 842, a lessee is required to recognize a lease liability and right-of-use (ROU) asset for all leases, unless the lease qualifies for the short-term lease exception. The new guidance also modified the classification criteria and requires additional disclosures to enable users of financial statements to understand the amount, timing, and uncertainty of cash flows arising from leases. Consistent with current guidance, a lessee’s recognition, measurement, and presentation of expenses and cash flows arising from a lease continues to depend primarily on its classification. The Company elected the package of practical expedients permitted under the transition guidance, which allowed the Company to carryforward its historical lease classification, its assessment on whether a contract was or contains a lease, and its initial direct costs for any leases that existed prior to January 1, 2022. In addition, the Company elected the following transitional practical expedients: (1) the short-term lease exception and (2) to not separate its non-lease components for its real estate, vehicle and equipment leases. Upon the adoption of this standard, the Company recorded operating lease right-of-use assets of $7.3 million and corresponding operating lease liabilities of $7.4 million as of January 1, 2022. The difference between the value of the right-of-use assets and lease liabilities is due to the reclassification of existing deferred rent as of January 1, 2022.

In December 2019, the FASB issued ASU 2019-12, Simplifying the Accounting for Income Taxes, or ASU 2019-12. ASU 2019-12 eliminates certain exceptions related to the approach for intra-period tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. It also clarifies and simplifies other aspects of the accounting for income taxes. This guidance is effective for fiscal years beginning after December 15, 2021, and interim periods within fiscal years beginning after December 15, 2022. The Company adopted ASU 2019-12 on January 1, 2022. The adoption of the standard was immaterial to the accompanying consolidated financial statements.

3. Fair value measurements

The following tables present information about the Company’s financial assets and liabilities measured at fair value on a recurring basis and indicate the level of the fair value hierarchy utilized to determine such fair values (in thousands):

Level 1 Level 2 Level 3 Total

Current assets

Level 1 Level 2 Level 3 Total

Current assets

Money market funds are highly liquid investments and are actively traded. The pricing information on the Company’s money market funds are based on quoted prices in active markets for identical securities. This approach results in the classification of these securities as Level 1 of the fair value hierarchy.

The fair value of pension plan assets has been determined as the surrender value of the portfolio of active insured members held within the Swiss Life Collective BVG Foundation collective investment fund and are classified within Level 2 of the fair value hierarchy.

Marketable securities consist of corporate debt securities and U.S. Treasury securities which are classified as available-for-sale pursuant to ASC 320, Investments—Debt and Equity Securities. Marketable securities are classified within Level 2 of the fair value hierarchy because pricing inputs are other than quoted prices in active

F-11

markets. The fair values of these investments are estimated by taking into consideration valuations obtained from third-party pricing services. The pricing services utilize industry standard valuation models, including both income- and market-based approaches, for which all significant inputs are observable, either directly or indirectly, to estimate fair value. These inputs include reported trades of and broker/dealer quotes on the same or similar securities, issuer credit spreads, benchmark securities based on historical data and other observable inputs.

There were no transfers among Level 1, Level 2 or Level 3 categories in the years ended December 31, 2022 or 2021.

4. Marketable securities

Marketable securities as of December 31, 2022, consisted of the following (in thousands):

Amortized Unrealized Unrealized Fair

Cost Gains Losses Value

Description

As of December 31, 2022, the Company held 40 marketable securities, 31 of which were in an unrealized loss position. The aggregate fair value of securities in a loss position is $164.9 million. There were no individual securities that were in a significant unrealized loss position as of December 31, 2022. The Company evaluates securities for other-than-temporary impairments based on quantitative and qualitative factors, and considers the decline in market value as of December 31, 2022, to be primarily attributable to the then current economic and market conditions. The Company neither intends to sell these investments nor concludes that it is more-likely-than-not that the Company will have to sell them before recovery of their carrying values. The Company also believes that it will be able to collect both principal and interest amounts due to it at maturity.

5. Property and equipment, net

Property and equipment, net, consist of the following (in thousands):

December 31,

Computer hardware and software 499 299

Total property and equipment, at cost $ 33,326 $ 15,028

Less: accumulated depreciation (6,251 ) (2,703 )

Depreciation expense for the years ended December 31, 2022, and 2021 was $3.7 million and $2.1 million, respectively.

6. Accrued expenses and other current liabilities

Accrued expenses and other current liabilities consist of the following (in thousands):

December 31,

Compensation and benefits $ 5,624 $ 4,303

Accrued research and development 3,936 4,937

F-12

7. Leases

The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use or ROU assets and operating lease liabilities in the consolidated balance sheets. The Company has no finance leases as of December 31, 2022.

ROU assets represent the right to use an underlying asset for the lease term and lease liabilities represent the obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As the Company’s leases do not provide an implicit rate, management estimated the incremental borrowing rate based on the rate of interest the Company would have to pay to borrow a similar amount on a collateralized basis over a similar term.The Company uses its incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments.

Summer Street Lease

In September 2020, the Company entered into an operating lease agreement to lease 16,748 square feet of office and laboratory space at 645 Summer Street, Boston, Massachusetts or the Summer Street Lease with OPG MP Parcel Owner (DE) LLC or the Landlord. The original term of the Summer Street Lease expires in March 2026. On May 5, 2022, the Company entered into an Agreement for Termination of Lease with the Landlord which, subject to the Landlord executing a lease with a new tenant, provides the Company with the option to terminate the existing Summer Street Lease. On August 8, 2022, the termination condition was met. As a result, the operating lease ROU asset and operating lease liability were reduced by $3.7 million to $1.3 million and $1.4 million, respectively, and the $1.0 million security deposit associated with the lease was reclassified from long-term restricted cash to current restricted cash on the consolidated balance sheet. The Summer Street lease will terminate on June 1, 2023.

Klybeck Lease

In March 2021, the Company entered into an operating lease agreement for office and lab space that occupies approximately 21,422 square feet located at Hochbergerstrasse 60C, 4057 Basel, Basel-City, Switzerland. The current term of the lease expires in March 2026.

Harrison Avenue Lease

In December 2021, the Company entered into a non-cancelable lease agreement for 63,327 square feet of office and laboratory space to support its expanding operations or the Harrison Avenue Lease. The term of the lease commenced on April 1, 2022 and the Company’s obligation to pay rent began on December 21, 2022. The initial term of the lease is 128 months following the commencement date at which point the Company has the option to extend the lease an additional 5 years. As of the lease commencement date, the Company has determined that it is not reasonably certain to exercise the option to extend the lease and has not included the extension period in the lease term. The annual base rent under the Harrison Avenue Lease is $95.00 per square foot for the first year, which is subject to scheduled annual increases of 3%, plus certain costs, operating expenses and property management fees.

Pursuant to the terms of the Harrison Avenue Lease, the landlord will reimburse the Company for $13 million of tenant improvements. The Company will reduce the ROU asset and record an asset for construction in progress as costs are incurred and reimbursed. These costs will be reclassified from construction in progress to leasehold improvements upon completion of the project. As of December 31, 2022, the Company had $7.5 million receivable in reimbursable tenant improvements which is recorded as an other receivable on the consolidated balance sheet.

The components of lease expense for the year ended December 31, 2022, are as follows (in thousands):

Year ended

Operating lease expense $ 6,924

Variable lease expense 1,898

Total lease expense $ 8,822

The variable lease expenses generally include common area maintenance and property taxes. Of the total lease expense, $7.8 million was recorded within research and development expenses and $1.0 million was recorded

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within general and administrative expenses in the consolidated statements of operations and comprehensive income (loss). There were no short-term lease costs in the year ended December 31, 2022.

The weighted average remaining lease term and discount rate related to the Company's leases are as follows:

Weighted average remaining lease term (years) 9.7

Weighted average discount rate 9.9 %

Supplemental cash flow information relating to the Company's leases for the year ended December 31, 2022 are as follows (in thousands):

Year ended

Cash paid for amounts included in the measurement of lease liabilities $ 1,654

The amortization of the ROU assets for the year ended December 31, 2022 was $3.3 million.

Future undiscounted lease payments under non-cancelable leases as of December 31, 2022 for each of the years ending December 31 are as follows (in thousands):

Undiscounted lease payments

Total undiscounted lease payments 74,344

Less: Imputed interest (27,343 )

Total operating lease liability $ 47,001

Prior to January 1, 2022, the Company accounted for its leases in accordance with ASC Topic 840, Leases. As of December 31, 2021, the Company was committed under operating leases for its laboratory spaces and corporate offices. The future minimum lease payments under non-cancelable operating leases as of December 31, 2021 were as follows (in thousands):

Total future minimum lease payments $ 80,998

8. Commitments and contingencies

License, collaboration and investment agreements

In April 2018, the Company entered into license, collaboration and investment agreements with Cancer Research Technology Limited, or CRT, and The Institute of Cancer Research, or the ICR, for the purpose of development in the field of cereblon-mediated protein degradation, to support the Company’s early product development activities as the Company built its internal capabilities (the “License and Collaboration”). Pursuant to the License and Collaboration, CRT and the ICR granted the Company exclusive and non-exclusive, worldwide, and sublicensable licenses under CRT’s and the ICR’s intellection property rights in the field of cereblon mediated protein degradation to discover, research, develop, have developed, use, keep, make, have made, market, import, offer for sale, and sell products in the field of cereblon-mediated protein degradation.

In consideration for the rights granted under the License Agreement, the Company issued an aggregate of 1,132,984 common shares to CRT, the ICR and affiliated founding scientists pursuant to the Formation and Investment Agreement and paid CRT a technology access fee. The License Agreement will remain effective until terminated by written agreement between the Company, CRT and the ICR.

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Upon execution of the License and Collaboration, the Company paid an immaterial access fee which was expensed to research and development in 2018. The research program conducted with the ICR with respect to cereblon-mediated protein degradation was completed as of December 31, 2020. However, the License and Collaboration Agreement continues until it is otherwise terminated under the terms and conditions stated within the agreement. There was no activity under this agreement for the year ended December 31, 2022.

Under the License and Collaboration, the Company may be obligated to make certain milestone payments for achieving specific clinical progression events for certain products, solely to the extent such products are subject to the License and Collaboration. If owed, such milestones would aggregate up to $7 million for any covered first product candidate and $3.5 million for any covered subsequent product candidate. In addition, the Company may be obligated to pay low single-digit royalties on net sales for any covered product successfully developed and commercialized in the field of cereblon-mediated protein degradation under the terms of the License and Collaboration on a country by country basis until the later of (i) the date when the manufacture, use, offer for sale, sale or importation of such product is no longer covered by a valid claim in the country of sale, use or manufacture; (ii) ten years from the first commercial sale of such product in the relevant country; and (iii) the expiry of any extended exclusivity period granted with respect to an orphan drug designation, pediatric designation or other exclusivity in the relevant country.

The License and Collaboration will remain effective until (i) the termination by either the Company or the ICR and CRT upon the bankruptcy or uncured breach of the other party, (ii) by the ICR and CRT if the Company should abandon all discovery, development and commercialization efforts for all products covered under the License and Collaboration; (iii) by the Company if it is determined the continued development of products covered under the License and Collaboration would be commercially unreasonable, scientifically unviable, illegal, unethical or impossible, with a 90-day notification period; or (iv) for any/no reason by written agreement of the Company and the ICR and CRT.

Indemnification

The Company, as permitted under Delaware law and in accordance with its certification of incorporation and bylaws and pursuant to indemnification agreements with certain of its officers and directors, indemnifies its officers and directors for certain events or occurrences, subject to certain limits, which the officer or director is or was serving at the Company’s request in such capacity.

The Company enters into certain types of contracts that contingently require the Company to indemnify various parties against claims from third parties. These contracts primarily relate to (i) the Company’s bylaws, under which the Company must indemnify directors and executive officers, and may indemnify other officers and employees, for liabilities arising out of their relationship, (ii) contracts under which the Company must indemnify directors and certain officers and consultants for liabilities arising out of their relationship, and (iii) procurement, service or license agreements under which the Company may be required to indemnify vendors, service providers or licensees for certain claims, including claims that may be brought against them arising from the Company’s acts or omissions with respect to the Company’s products, technology, intellectual property or services.

From time to time, the Company may receive indemnification claims under these contracts in the normal course of business. In the event that one or more of these matters were to result in a claim against the Company, an adverse outcome, including a judgment or settlement, may cause a material adverse effect on the Company’s future business, operating results or financial condition. As of December 31, 2022 and 2021, the Company was not aware of any claims under indemnification arrangements and does not expect significant claims related to these indemnification obligations and, consequently, concluded that the fair value of these obligations is negligible. Therefore, no related reserves have been established.

9. Equity

Undesignated Preferred Stock

The Company had 10,000,000 shares authorized of undesignated preferred stock, par value of $0.0001, of which no shares were issued and outstanding as of December 31, 2022.

Common Stock

The Company had 500,000,000 shares of common stock authorized, of which 49,445,802 shares were issued and 49,323,531 shares were outstanding at December 31, 2022.

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The holders of common stock are entitled to dividends when and if declared by the board of directors, subject to the preferences applicable to outstanding shares of Convertible Preferred Stock. The board of directors has not declared any dividends and the Company has not paid any dividends.

The holders of common stock are entitled to one vote per share on all matters to be voted upon by the stockholders.

The Company has issued restricted stock to founders, employees and consultants, and expense for this restricted stock is recognized on a straight-line basis (see Note 10). The restricted stock generally vests monthly over 4 years.

At-the-Market Offering

In July 2022, the Company entered into a sales agreement, (the “Sales Agreement”), with Jefferies LLC, or Jefferies, pursuant to which the Company may offer and sell shares of its common stock having aggregate gross proceeds of up to $100 million from time to time in “at-the-market” offerings through Jefferies, as the Company’s sales agent. The Company agreed to pay Jefferies a commission of up to 3.0% of the gross proceeds of any shares sold by Jefferies under the Sales Agreement. During the year ended December 31, 2022, the Company sold 2,482,008 shares of its common stock resulting in proceeds to the Company of $19.7 million, net of offering costs of $1.0 million.

10. Stock-based compensation

2020 Stock incentive plan

The Company's 2020 Stock Option and Grant Plan, or the 2020 Plan, provided for the Company to grant stock options, restricted stock, and other stock awards, to employees, non-employee directors, and consultants. Upon effectiveness of the 2021 Plan (as defined below), no further issuances will be made under the 2020 plan.

2021 Stock incentive plan

The Company’s 2021 Stock Option and Incentive Plan, or the 2021 Plan, was approved by the Company’s board of directors on May 28, 2021, and the Company’s stockholders on June 17, 2021, and became effective on the date immediately prior to the date on which the registration statement for the Company’s IPO was declared effective. The 2021 Plan provides for the grant of incentive stock options, non-qualified stock options, stock appreciation rights, restricted stock units, restricted stock awards, unrestricted stock awards, cash-based awards and dividend equivalent rights to the Company’s officers, employees, directors and consultants. The number of shares initially reserved for issuance under the 2021 Plan was 4,903,145, which will be automatically increased on each January 1st by 5% of the outstanding number of shares of the Company’s common stock on the immediately preceding December 31st or such lesser number of shares as determined by the Company’s compensation, nomination and corporate governance committee. As of December 31, 2022, 3,787,469 shares of common stock were available for issuance under 2021 Plan.

2021 Employee stock purchase plan

The Company’s 2021 Employee Stock Purchase Plan, or the 2021 ESPP, was approved by the Company’s board of directors on May 28, 2021, and the Company’s stockholders on June 17, 2021, and became effective on the date immediately prior to the date on which the registration statement for the Company’s IPO was declared effective. A total of 439,849 shares of the Company’s common stock were initially reserved for issuance under the 2021 ESPP which will be automatically increased on each January 1st through January 1, 2031, by the least of (i) 439,849 shares of the Company’s common stock, (ii) 1% of the outstanding number of shares of the Company’s common stock on the immediately preceding December 31 or (iii) such lesser number of shares of the Company’s common stock as determined by the plan administrator of the 2021 ESPP. As of December 31, 2022, 827,751 shares of common stock remained available for issuance under the 2021 ESPP.

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Stock option activity

The following summarizes stock option activity:

The aggregate intrinsic value of options granted is calculated as the difference between the exercise price of the options and the estimated fair value of the Company’s common stock. The weighted average grant date fair value of options granted in during the years ended December 31, 2022 and 2021 was $8.44 and $7.11 per share, respectively.

Fair value of stock option awards

The Company estimates the fair value of stock option awards on the grant date using Black-Scholes. The fair value of options granted were estimated using the following weighted-average assumptions:

Year endedDecember 31,

Expected term (years) 6.25 6.25

Risk-free interest rate 2.02 % 1.25 %

Expected dividend yield — % — %

Black-Scholes requires the use of subjective assumptions which determine the fair value of stock-based awards. These assumptions include:

Expected term: The Company’s expected term represents the period that options are expected to be outstanding and is determined using the simplified method. The Company does not have sufficient historical data to use any other method to estimate expected term.

Expected volatility: The Company has limited information on the volatility of stock options as the shares were not actively traded on any public markets prior to June 24, 2021. The expected volatility was derived from historical stock volatilities of comparable peer public companies within its industry based on their similarities to the Company, including life cycle stage, therapeutic focus and size over a period equivalent to the expected term of the stock-based awards.

Risk-free interest rate. The risk-free interest rate is based on the U.S. Treasury zero coupon issues in effect at the time of grant for periods corresponding with the expected term of the stock option grants.

Expected dividend: The Company has never paid dividends on its common stock and has no plans to pay dividends on its common stock. Therefore, the Company used an expected dividend yield of zero.

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Restricted stock award activity

Unvested restricted stock awards, or RSAs, as of December 31, 2022 and 2021, were granted to employees under the 2020 Plan. Restricted stock awards generally vest over a four year period provided the individual remains in continuous service of the Company.

The following summarizes restricted stock activity:

Numberof shares Weightedaveragegrant datefair value

The aggregate fair value of restricted stock that vested during the year ended December 31, 2022 and 2021 was $1.5 million and $5.2 million, respectively. The weighted average grant date fair value of restricted stock that vested during the year ended December 31, 2022 and 2021 was $0.78 and $1.13 per share, respectively.

Restricted stock unit activity

Starting in 2022, the Company granted restricted stock units, or RSUs, to employees under the 2021 Plan. Each of the RSUs represents the right to receive one share of the Company’s common stock upon vesting. The RSUs granted over two years provided the individual remains in continuous service of the Company. Accordingly, stock-based compensation expense for each RSU is recognized on a straight-line basis over the vesting term. The fair value of each RSU is based on the closing price of the Company’s common stock on the date of grant.

The following summarizes restricted stock unit activity:

Numberof shares Weightedaveragegrant datefair value

Unvested restricted stock units as of December 31, 2021 —

No RSUs vested during the year ended December 31, 2022.

Stock-based compensation expense

Stock-based compensation expense is classified as follows (in thousands):

Year endedDecember 31,

Total stock-based compensation expense $ 11,664 $ 5,200

As of December 31, 2022, total unrecognized stock–based compensation cost related to unvested stock options, restricted stock awards, and restricted stock units was $31.1 million, $0.1 million, and $0.7 million, respectively. The Company expects to recognize this remaining cost over a weighted average period of 2.5 years, 1.0 years, and 1.5 years, respectively.

11. Income Taxes

The Company has incurred net operating losses for all the periods presented. The Company has not reflected the benefit of any such net operating loss carryforwards in the accompanying consolidated financial statements. Domestic and foreign components of net loss are as follows (in thousands):

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Year ended December 31,

The effective tax rate for the years ended December 31, 2022 and 2021 is different from the federal statutory rate primarily due to the valuation allowance against deferred tax assets as a result of insufficient sources of income. The reconciliation of the federal statutory income tax rate to the Company’s effective income tax rate is as follows:

Year ended December 31,

Income tax benefit at the federal statutory rate 21.0 % 21.0 %

State income taxes, net of federal benefit 6.2 % 6.3 %

Research and development tax credits 0.0 % 1.2 %

Foreign rate differential (6.7 )% (6.9 )%

Adjustment related to Preferred Stock Tranche Obligation — (0.3 )%

Other (0.7 )% (1.6 )%

Change in valuation allowance (19.8 )% (19.7 )%

Deferred income taxes reflect the net effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The principal components of the Company’s deferred tax assets consisted of the following (in thousands):

December 31,

Deferred tax assets

Federal and state net operating loss carryforwards $ 26,136 $ 14,529

Research and development tax credits 1,715 1,862

Capitalized research and development 1,151 —

Total net deferred tax assets $ 13,262 $ 410

Deferred tax liabilities

Right-of-use asset (11,766 ) —

Defined benefit plan adjustment (375 ) (125 )

Prepaid insurance (252 ) —

Total deferred tax liabilities (13,262 ) (410 )

Net deferred tax assets $ — $ —

The Company has incurred annual net operating losses in each year since inception. The Company has not reflected the benefit of any such net operating loss carryforwards in the financial statements. Due to the Company’s history of losses, and lack of other positive evidence, the Company has determined that it is more likely than not that its net deferred tax assets will not be realized, and therefore, the net deferred tax assets are fully offset by a valuation allowance at December 31, 2022 and 2021. The Company increased its valuation allowance by $15.3 million for the year ended December 31, 2022 in order to maintain a full valuation allowance against its deferred tax assets.

As of December 31, 2022, the Company had federal net operating loss carryforwards, or NOLs, of $3.9 million and federal tax credits of $1.1 million available to offset tax liabilities. The Company’s federal NOLs have an

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indefinite life and federal tax credit carryforwards begin to expire in 2039. The Company also had gross foreign NOLs of $191.1 million that begin to expire in 2026. The Company also had gross state NOLs of $5.8 million and state tax credits of $0.6 million which are available to offset state tax liabilities. The state NOLs begin to expire in 2039 and the state tax credit carryforwards begin to expire in 2035. Federal and state NOLs and tax credit carryforwards are also subject to annual limitations in the event that cumulative changes in the ownership interests of significant stockholders exceed 50% over a three-year period, as defined under Sections 382 and 383 of the Internal Revenue Code of 1986. The Company has not completed an analysis to determine if the NOLs and tax credits are limited due to a change in ownership. Should there be ownership changes that occurred, the Company’s ability to utilize existing carryforwards could be substantially restricted.

The Tax Cuts and Jobs Act resulted in significant changes to the treatment of research and development, or R&D, expenditures under Section 174. For tax years beginning after December 31, 2021, taxpayers are required to capitalize and amortize all R&D expenditures that are paid or incurred in connection with their trade or business. Specifically, costs for US-based R&D activities must be amortized over five years and costs for foreign R&D activities must be amortized over 15 years – both using a midyear convention. During the year ended December 31, 2022, the Company capitalized $4.0 million of R&D expenses.

The Company determines its uncertain tax positions based on whether and how much of a tax benefit taken by the Company in its tax filings is more likely than not to be sustained upon examination by the relevant income tax authorities.

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands):

Year ended December 31,

Unrecognized tax benefits, beginning of year $ — $ —

Additions for tax positions of prior years 2,235 —

Reductions for tax provisions of prior years — —

Unrecognized tax benefits, end of year $ 2,235 $ —

The Company recognizes interest and penalties related to unrecognized tax benefits in U.S. Federal, state, and foreign income tax expense. For the year ended December 31, 2022, the unrecognized tax benefit generated was related to a reserve for the Federal and State Research and Development Credit of $2.2 million. The Company had approximately $2.2 million and $0.0 of unrecognized tax benefit as of December 31, 2022, and 2021, respectively.

The Company files income tax returns in the U.S., Switzerland and Massachusetts. The Company is not currently under examination by any taxing authority for any open tax year. Due to net operating loss carryforwards, all years remain open for income tax examination. To the extent the Company has tax attribute carryforwards, the tax years in which the attribute was generated may still be adjusted upon examination by the Internal Revenue Service, or IRS, or state tax authorities to the extent utilized in a future period. No federal, foreign, or state tax audits are currently in process.

12. Employee retirement plans

Defined benefit plan

The Company, in compliance with Swiss Law, is contracted with the Swiss Life Collective BVG Foundation for the provision of pension benefits. All benefits are reinsured in their entirety with Swiss Life Ltd within the framework of the contract.

The technical administration and management of the savings account are guaranteed by Swiss Life on behalf of the collective foundation. Insurance benefits due are paid directly to the entitled persons by Swiss Life in the name of and for the account of the collective foundation. The pension plan is financed by contributions of both employees and employer.

The contract between the Company and the collective foundation can be terminated by either side. In the event of a termination, the Company would have an obligation to find alternative pension arrangements for its employees. Because there is no guarantee that the employee pension arrangements would be continued under the same conditions, there is a risk, albeit remote, that a pension obligation may fall on the Company.

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The pension assets are pooled for all affiliated companies; the investment of assets is done by the governing bodies of the collective foundation or by mandated parties. The risks of disability, death and longevity are reinsured in their entirety with Swiss Life Ltd.

The following table represents the changes in benefit obligations and plan assets and the net amount recognized on the consolidated balance sheets (in thousands):

Year ended December 31,

Change in benefit obligation:

Benefit obligation—beginning of period $ 5,975 $ 2,284

Contributions paid by employees 299 170

Interest cost 19 9

Contributions paid by plan participants 1,302 1,926

Benefits paid (452 ) (82 )

Plan Amendment (67 ) (42 )

Benefit obligation—end of period $ 6,851 $ 5,975

Change in plan assets:

Fair value of plan assets—beginning of period $ 3,799 $ 1,217

Actual return on plan assets (240 ) 226

Contributions paid by employer 610 340

Contributions paid by employees 299 175

Contributions paid by plan participants 1,302 1,926

Benefits paid (452 ) (85 )

Fair value of plan assets—end of period $ 5,318 $ 3,799

Defined benefit plan liability $ 1,533 $ 2,176

The net pension costs was as follows (in thousands):

Year ended December 31,

Interest cost 19 9

The provision for pension benefit obligation recognized in other comprehensive loss was as follows (in thousands):

Year ended December 31,

Source: SEC EDGAR (public domain) · 10-K for the period ended 2022-12-31, filed 2023-03-16 · accession 0000950170-23-008440

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