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BOLD US Equity

Boundless Bio, Inc.Health Care · Pharmaceutical Preparations · CIK 1782303 · FY ends Dec 31
$2.86
+0.00 (+0.00%)
USD · as of 2026-08-19 · marketstack

BOLD · 10-K · period ended 2024-12-31

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filed 2025-03-27 · EDGAR original ↗

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

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our financial statements and notes thereto 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.” As a result of many factors, including those factors set forth in the “Risk Factors” section of this Annual Report on Form 10-K, our actual results and the timing of events could differ materially from the results and timing described in or implied by the forward-looking statements contained in the following discussion and analysis.

Overview

We are a clinical-stage oncology company dedicated to unlocking a new paradigm in cancer therapeutics that addresses the significant unmet need in patients with oncogene amplified tumors by interrogating extrachromosomal DNA (ecDNA), a root cause of oncogene amplification observed in 14 to 17% of cancer patients. Using our proprietary Spyglass platform, we identify targets essential for ecDNA functionality in oncogene amplified cancer cells, then design and develop small molecule drugs called ecDNA-directed therapeutic candidates (ecDTx) to inhibit those targets, with the aim to prevent cancer cells from using amplified oncogenes to grow, adapt, and become resistant to existing therapies. Instead of directly targeting the proteins produced by amplified oncogenes, which is the approach of traditional targeted therapies, our ecDTx are intended to be synthetic lethal in tumor cells reliant on amplification biology. In the context of drug development, synthetic lethality is a therapeutic approach wherein using a drug to inhibit one target is lethal to cancer cells harboring a specific genetic alteration to a second target, but not lethal to healthy cells that lack the genetic alteration to the second target. Accordingly, our ecDTx are designed to preferentially kill amplification-dependent cancer cells, but not healthy cells. They are engineered to disrupt the underlying cellular machinery that enables functional amplification.

Our lead ecDTx, BBI-355, is a novel, oral, selective inhibitor of checkpoint kinase 1 (CHK1), which manages replication stress associated with gene amplification in cancer cells. BBI-355 demonstrated CHK1 inhibition and tumor regressions in oncogene amplified preclinical cancer models, including those enabled by ecDNA, and is currently being studied in a first-in-human, Phase 1/2 clinical trial in patients with oncogene amplified cancers. We refer to this trial as POTENTIATE (Precision Oncology Trial Evaluating Novel Therapeutic Interrupting Amplifications Tied to ecDNA). We expect to have preliminary clinical proof of concept safety and antitumor activity data of BBI-355 in the second half of 2025.

Our next program is directed at a previously undrugged kinesin target that we identified as essential for proper ecDNA segregation and inheritance during cell division. We are advancing our Kinesin program through drug discovery and expect to select a development candidate by mid-2025 and submit an investigational new drug application (IND) in the first half of 2026.

In December 2024, we announced that we determined not to advance an ecDTx known as BBI-825, an oral, selective small molecule inhibitor of RNR, that we had been evaluating in a first-in-human, open-label, non-randomized, 3-part, Phase 1/2 clinical trial (which we refer to as STARMAP) in patients with solid tumors, including those with BRAFV600E or KRASG12Cmutated colorectal cancer that developed resistance oncogene amplifications, into the Part 2 portion of that trial. We initiated the trial in February 2024. Following an assessment of preliminary PK data from the Part 1 portion of the trial, we made the strategic decision not to continue dose escalation of Part 1 or to proceed into the Part 2 portion of STARMAP. With that strategic decision, we are prioritizing resource allocation to BBI-355 and our Kinesin program.

To assist in identifying patients that may benefit from our ecDTx, we have developed an ecDNA diagnostic, which we internally call ECHO (ecDNA Harboring Oncogenes), to detect ecDNA in patient tumor samples. This test analyzes the genomic data obtained from routine next-generation sequencing (NGS) of patient tumor samples. ECHO is currently being used as a clinical trial assay to determine ecDNA status of patients enrolled in the BBI-355 POTENTIATE trial.

Our pipeline consists of programs directed against targets critical for functional gene amplifications in cancer. We continue to identify new targets, both novel and previously clinically validated, through our proprietary Spyglass platform. To our knowledge, Spyglass is the only platform in the biopharma industry using ecDNA biology to identify specific druggable targets in oncogene amplified cancers. All of our ecDTx have been discovered internally, and we retain global rights for all of our programs.

Since we commenced operations in 2018, we have devoted substantially all of our efforts and resources to organizing and staffing our company, business planning, raising capital, building our proprietary Spyglass platform, discovering our ecDTx, developing our ecDNA diagnostic, establishing our intellectual property portfolio, conducting research, preclinical studies, and clinical trials, establishing arrangements with third parties for the manufacture of our ecDTx and related raw materials, and providing general and administrative support for these operations. During this time, we have incurred significant operating losses and, as of December 31, 2024, we had an accumulated deficit of $201.5 million. We expect to continue to incur losses for the foreseeable future, and anticipate these losses will increase substantially as we continue our development of, seek regulatory approval for, and potentially commercialize

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any of our ecDTx, seek to discover and develop additional ecDTx, develop our ecDNA diagnostic, conduct our ongoing and planned clinical trials and preclinical studies, continue our research and development activities, utilize third parties to manufacture our ecDTx and related raw materials, hire additional personnel, seek to expand and protect our intellectual property, as well as incur additional costs associated with being a public company. If we obtain regulatory approval for any of our ecDTx, we expect to incur significant commercialization expenses related to product sales, marketing, manufacturing, and distribution. Our net losses may fluctuate significantly from quarter-to-quarter and year-to-year, depending on the timing of our clinical trials, preclinical studies, and our other research and development activities and capital expenditures.

Through December 31, 2024, we have raised a total of $353.7 million to fund our operations primarily from the gross proceeds from the sale and issuance of our convertible preferred and common stock. In April 2024, we completed our initial public offering, or IPO, pursuant to which we sold and issued 6,250,000 shares of our common stock, which generated gross proceeds of $100.0 million. As of December 31, 2024, we had cash, cash equivalents, and short-term investments of $152.1 million. Based upon our current operating plans, we believe that our existing cash, cash equivalents, and short-term investments will be sufficient to fund our operations into 2027.

We do not have any products approved for sale and have not generated any revenue to date. We do not expect to generate any revenue from product sales until we successfully complete development and obtain regulatory approval for one or more of our ecDTx, which we expect will take several years and may never occur. We will need substantial additional funding to support our continuing operations and pursue our long-term business plan, including to complete the development and commercialization of our ecDTx, if approved. Accordingly, until such time as we can generate significant revenue from sales of our ecDTx, if ever, we expect to finance our cash needs 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 such other arrangements when needed on favorable terms or at all. Our failure to raise capital or enter such other arrangements when needed would have a negative impact on our financial condition and could force us to delay, limit, reduce, or terminate our research and development programs or other operations, or grant rights to develop and market ecDTx that we would otherwise prefer to develop and market ourselves.

We do not own or operate, and currently have no plans to establish, any manufacturing facilities. We rely, and expect to continue to rely, on third parties for the manufacture of our ecDTx for preclinical and clinical testing, as well as for commercial manufacture if any of our ecDTx obtain marketing approval. We are working with our current manufacturers to ensure that we will be able to scale up our manufacturing capabilities to support our clinical plans. In addition, we rely on third parties to package, label, store, and distribute our ecDTx, and we intend to rely on third parties for our commercial products if marketing approval is obtained. We believe that this strategy allows us to maintain a more efficient infrastructure by eliminating the need for us to invest in our own manufacturing facilities, equipment, and personnel while also enabling us to focus our expertise and resources on the discovery and development of our ecDTx.

Components of Our Results of Operations

Revenue

To date, we have not generated any revenue from the sale of products. We do not expect to generate any such revenue unless and until such time that our ecDTx have advanced through clinical development and regulatory approval, if ever. If we fail to complete preclinical and clinical development of ecDTx or obtain regulatory approval for them, our ability to generate future revenues, and our results of operations and financial position would be adversely affected.

Operating Expenses

Our operating expenses consist of research and development expenses and general and administrative expenses.

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Research and Development

Our research and development (R&D) expenses have related primarily to building our Spyglass platform, our ecDTx discovery efforts, our preclinical and clinical development activities, and the development of an ecDNA diagnostic test. R&D expenses are recognized as incurred, and payments made prior to the receipt of goods or services to be used in R&D are capitalized until the goods or services are received. We use internal resources primarily to conduct our research and discovery activities, as well as for managing our preclinical development, process development, manufacturing, and clinical development activities. We track direct costs on a development program specific basis. Indirect costs are not included in program costs, as these costs are general in nature and benefit all our discovery efforts and development programs.

Our direct, or development program specific, R&D costs consist of:

costs incurred under agreements with our contract research organizations (CROs), investigative sites, and consultants to conduct our clinical trials and preclinical studies, as well as third party costs related to the development of an ecDNA diagnostic test,

expenses related to manufacturing our ecDTx for clinical trials and preclinical studies, including fees paid to third-party manufacturers; and

Our indirect R&D costs, include:

personnel-related costs, including salaries, bonuses, benefits, travel, and stock-based compensation expenses for employees engaged in research and development functions,

the costs of outside services from third parties, including consultants,

the costs of lab and pharmacology supplies,

facilities-related costs, including rent and maintenance costs, and other costs including insurance, depreciation, supplies, and miscellaneous expenses, and

other costs, including costs related to travel, repairs and maintenance, service contracts, computer supplies, software, and publications and subscription services.

Although R&D activities are central to our business model, the successful development of our ecDTx is highly uncertain. There are numerous factors associated with the successful development of any ecDTx, including future trial design and various regulatory requirements, many of which cannot be determined with accuracy at this time based on our stage of development. In addition, future regulatory factors beyond our control may impact our clinical development programs. Product candidates in later stages of development generally have higher development costs than those in earlier stages of development. As a result, we expect that our R&D expenses will increase substantially for the foreseeable future as we continue to conduct our ongoing R&D activities, advance preclinical research programs toward clinical development, conduct clinical trials, hire additional personnel, and maintain, expand, protect, and enforce our intellectual property portfolio.

Our future R&D expenses may vary significantly based on a wide variety of factors such as:

the number, scope, rate of progress, expense, and results of our discovery and preclinical activities and clinical trials;

per patient trial costs;

the number of trials required for approval;

the number of sites included in the trials;

the countries in which the trials are conducted;

the length of time required to enroll eligible patients;

the cost of developing an ecDNA diagnostic test;

the number of patients that participate in the trials;

the number of doses that patients receive;

the drop-out or discontinuation rates of patients;

the potential additional safety monitoring requested by regulatory agencies;

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the duration of patient participation in the trials and follow-up;

the cost and timing of manufacturing our ecDTx;

the phase of development of our ecDTx;

a decision not to advance the clinical development of an ecDTx;

the extent of changes in government regulation and regulatory guidance;

the efficacy and safety profile of our ecDTx;

the timing, receipt, and terms of any approvals from applicable regulatory authorities; and

the extent to which we establish collaboration, license, or other arrangements.

A change in the outcome of any of these variables with respect to development of any of our ecDTx could significantly change the costs and timing associated with the development of that ecDTx. While we made a strategic decision in late 2024 not to advance the clinical development of BBI-825, we expect to incur significant R&D expenses in 2025 in connection with winding down that program.

The process of conducting the necessary preclinical and clinical research to obtain regulatory approval is costly and time-consuming. The actual probability of success for our current ecDTx or any future ecDTx may be affected by a variety of factors. We may never succeed in achieving regulatory approval for any of our ecDTx. Preclinical and clinical development timelines, the probability of success, and total development costs can differ materially from expectations. We anticipate that we will make determinations as to which ecDTx to pursue and how much funding to direct to each ecDTx on an ongoing basis in response to the results of ongoing and future preclinical studies and clinical trials, regulatory developments, and our ongoing assessments as to each ecDTx’s commercial potential. We will need to raise substantial additional capital in the future. In addition, we cannot forecast which ecDTx may be subject to future collaborations, when such arrangements will be secured, if at all, and to what degree such arrangements would affect our development plans and capital requirements.

General and Administrative

General and administrative (G&A) expenses consist primarily of personnel-related costs, including salaries, bonuses, benefits, travel, and stock-based compensation expenses for employees in executive, accounting and finance, business development, legal, and other administrative functions. Other significant costs include allocated facility-related costs, legal fees relating to intellectual property and corporate matters, professional fees for accounting and consulting services, insurance costs, and business development expenses.

We expect that our G&A expenses will increase substantially in the future due to increased facility and stock-based compensation costs, as well as increased expenses related to audit, legal, regulatory, and tax-related services associated with maintaining compliance with securities exchange listing and SEC requirements, director and officer insurance premiums, and investor relations costs associated with operating as a public company.

Other Income (Expense), Net

Other income (expense), net consists primarily of interest income earned on our cash, cash equivalents, and investments.

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Results of Operations

Comparison of the Years Ended December 31, 2024 and 2023

The following table summarizes our results of operations for each of the periods indicated (in thousands):

Year EndedDecember 31,

Operating expenses:

Other income, net:

Research and Development Expenses

The following table summarizes our R&D expenses for each of the periods indicated (in thousands):

Year EndedDecember 31,

Direct program costs:

Indirect program costs:

Facilities-related (including depreciation) 3,818 2,776 1,042

R&D expenses were $55.3 million and $42.6 million for the years ended December 31, 2024 and 2023, respectively. The increase in R&D expenses was primarily due to (i) a $9.2 million increase in direct program costs primarily related to our ongoing Phase 1/2 POTENTIATE clinical trial of BBI-355 and the Phase 1/2 STARMAP clinical trial of BBI-825, the latter of which was initiated in the first quarter 2024, (ii) a $1.5 million increase in employee compensation costs due to the expansion of our clinical operations team, annual and other salary increases, and severance costs related to a reduction in our R&D workforce in the third quarter of 2024, (iii) $1.6 million of additional stock-based compensation primarily due to option awards granted in 2024, the initiation of our employee stock purchase plan in April 2024, as well as the incremental expense from the option repricing (see Note 11 to our financial statements included elsewhere in this Annual Report on Form 10-K for information about the option repricing in 2024), and (iv) a $1.0 million increase in facilities-related costs primarily due to relocation of our corporate headquarters in the fourth quarter of 2024, partially offset by decreases in laboratory supplies expenses, third-party services, and other miscellaneous R&D costs.

General and Administrative Expenses

G&A expenses were $18.0 million and $12.2 million for the years ended December 31, 2024 and 2023, respectively. The increase in G&A expenses was due to (i) a $1.2 million increase in personnel-related costs resulting from an increase in personnel, annual and

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other salary increases, and severance costs related to the departure of an executive officer, (ii) $2.6 million of additional stock-based compensation primarily due to option awards granted in 2024, the initiation of our employee stock purchase plan in April 2024, and the incremental expense from the option repricing noted above, (iii) a $0.8 million increase in costs primarily associated with operating as a public-traded company after our IPO in March 2024, (iv) a $0.6 million increase in facilities-related costs primarily due to relocation of our corporate headquarters in the fourth quarter of 2024, and (iii) a $0.6 million increase in other G&A costs.

Other Income, Net

Other income, net was $7.9 million and $5.4 million for the years ended December 31, 2024 and 2023, respectively. The increase resulted from the additional interest income generated by our available-for-sale investment securities portfolio due to the net proceeds from the sale of our common stock in our IPO in April 2024.

Liquidity and Capital Resources

Sources of Liquidity

Through December 31, 2024, we have raised a total of $353.7 million to fund our operations primarily from the gross proceeds from the sale and issuance of our convertible preferred stock and the sale and issuance of 6,250,000 shares of our common stock in our IPO in April 2024 for gross proceeds of $100.0 million.

Future Funding Requirements

As of December 31, 2024, we had cash, cash equivalents, and short-term investments of $152.1 million. Based upon our current operating plans, we believe that our existing cash, cash equivalents, and short-term investments will be sufficient to fund our operations into 2027. However, our forecast of the period of time through which our financial resources will be adequate to support our operations is a forward-looking statement that involves risks and uncertainties, and actual results could vary materially. We have based this estimate on assumptions that may prove to be wrong, and we could deplete our capital resources sooner than we expect. Additionally, the process of conducting preclinical studies, manufacturing ecDTx, developing our ecDNA diagnostic, and testing ecDTx in clinical trials is costly, and the timing of progress and expenses in these studies and trials is uncertain.

We have incurred significant operating losses since our inception and, as of December 31, 2024, we had an accumulated deficit of $201.5 million. We expect to continue to incur losses for the foreseeable future, and we anticipate these losses will increase substantially as we continue our development of, seek regulatory approval for, and potentially commercialize any of our ecDTx, seek to discover and develop additional ecDTx, develop our ecDNA diagnostic, conduct our ongoing and planned clinical trials and preclinical studies, continue our research and development activities, utilize third parties to manufacture our ecDTx and related raw materials, hire additional personnel, seek to expand and protect our intellectual property, as well as incur additional costs associated with being a public company. If we obtain regulatory approval for any of our ecDTx, we expect to incur significant commercialization expenses related to product sales, marketing, manufacturing, and distribution. Our net losses may fluctuate significantly from quarter-to-quarter and year-to-year, depending on the timing of our clinical trials, preclinical studies, and our other research and development activities and capital expenditures.

Our future capital requirements are difficult to predict and depend on many factors, including but not limited to:

the initiation, type, number, scope, progress, expansions, results, costs, and timing of clinical trials and preclinical studies of our ecDTx that we are pursuing or may choose to pursue in the future, including the costs of any third-party products used as combination agents in our combination clinical trials;

the costs and timing of manufacturing for our ecDTx, including commercial manufacture at sufficient scale, if any ecDTx is approved;

the costs and timing of developing ecDNA diagnostics, if required, and the outcome of their regulatory review;

the costs, timing, and outcome of regulatory meetings and reviews of our ecDTx;

changes in regulatory policies or approval pathways;

disruptions at the FDA that hinder its ability to perform routine activities or function in the normal course;

the costs of obtaining, maintaining, enforcing, and protecting our patents and other intellectual property and proprietary rights;

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our efforts to enhance operational systems and hire additional personnel to satisfy our obligations as a public company, including enhanced internal control over financial reporting;

the costs associated with hiring additional personnel and consultants as our clinical and preclinical activities increase and as we operate as a public company;

the costs and timing of establishing or securing sales and marketing capabilities if any ecDTx is approved;

our ability to achieve sufficient market acceptance, coverage, and adequate reimbursement from third-party payors and adequate market share and revenue for any approved products;

patients’ willingness to pay out-of-pocket for any approved products in the absence of coverage and/or adequate reimbursement from third-party payors;

the terms and timing of establishing and maintaining collaborations, licenses, and other similar arrangements;

costs associated with any products or technologies that we may in-license or acquire; and

the effects of competing technological and market developments as well as disruptions to and volatility in the credit and financial markets.

We have no committed sources of capital. Until we can generate sufficient product revenue to finance our cash requirements, if ever, we expect to finance our future cash needs primarily 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 such other arrangements when needed on favorable terms or at all. To the extent that we raise additional capital through the sale of equity or convertible debt securities, the ownership interest of our stockholders will be or could be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of our common stockholders. Debt financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures, or declaring dividends. If we raise additional funds through other collaborations or licensing arrangements with third parties, we may have to relinquish valuable rights to our future revenue streams, ecDTx, research programs, intellectual property or proprietary technology, or grant licenses on terms that may not be favorable to us. If we are unable to raise additional funds through equity or debt financings or other arrangements when needed, we may be required to delay, limit, reduce, or terminate our R&D programs or other operations, or grant rights to develop and market ecDTx to third parties that we would otherwise prefer to develop and market ourselves, or on less favorable terms than we would otherwise choose.

Cash Flows

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

Year EndedDecember 31,

Operating Activities

Net cash used in operating activities was $60.8 million and $46.9 million for the years ended December 31, 2024 and 2023, respectively. The net cash used in operating activities during the year ended December 31, 2024 was primarily due to our reported net loss of $65.4 million, net of noncash charges (including stock-based compensation expense, depreciation, and right-of-use (ROU) asset amortization) totaling $6.2 million and a $1.7 million increase of our net operating assets. The net cash used in operating activities during the year ended December 31, 2023 was primarily due to our reported net loss of $49.4 million and a $0.8 million increase in our net operating assets, adjusted for noncash charges (including stock-based compensation expense, depreciation, and ROU amortization) totaling $3.4 million. The increase in cash used in operations during the year ended December 31, 2024 in comparison to the year ended

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December 31, 2023 was primarily attributable to higher personnel-related costs and an increase in third-party spending associated with our discovery, development, and clinical activities.

Investing Activities

Investing activities consist primarily of the cash flows of purchases and maturities of investment securities and the cash outflow associated with purchases of property and equipment. Such activities resulted in a net outflow of funds of approximately $26.1 million and $38.3 million during the years ended December 31, 2024 and 2023, respectively, primarily from the net purchases of our available-for-sale securities portfolio.

Financing Activities

Our financing activities consist of the proceeds from sales of our common and convertible preferred stock and, to a lesser extent, the exercise of common stock options by our employees and consultants. Net cash provided by financing activities was $89.8 million during the year ended December 31, 2024, primarily due to the net proceeds from our IPO. Net cash provided by financing activities was $97.9 million during the year ended December 31, 2023, primarily due to the net proceeds generated from the sale and issuance of our Series C convertible preferred stock in the second quarter of 2023.

Contractual Obligations and Other Commitments

We lease office and lab space under a non-cancellable lease agreement that expires in October 2034. As of December 31, 2024, total future aggregate operating lease commitments was $72.5 million, which is exclusive of variable lease payments for common area maintenance and property taxes. Of this amount, approximately $2.6 million will be due in 2025 and approximately $7.0 million will be due in 2026, with the remainder due in periods from 2027 through 2034. See Note 7 to our financial statements included elsewhere in this Annual Report on Form 10-K for further information.

We enter into contracts in the normal course of our business for clinical trial and preclinical research services, contract manufacturing services, professional services and other services and products for research and operating purposes. These contracts generally provide for termination after a notice period, and, therefore, are cancelable contracts and not separately presented.

Off-Balance Sheet Arrangements

Since our inception, we have not had, and we do not currently have, any off-balance sheet arrangements as defined under rules and regulations of the SEC.

Critical Accounting Policies and Significant Estimates and Judgments

Our management’s discussion and analysis of our financial condition and results of operations are based on our financial statements, which have been prepared in accordance with U.S. generally accepted accounting principles (GAAP). The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, and expenses and the disclosure of contingent assets and liabilities in our financial statements. On an ongoing basis, we evaluate our estimates and judgments, including those related to accrued R&D expenses and stock-based compensation expense. We base our estimates on historical experience, known trends and events, and various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

While our significant accounting policies are described in more detail in Note 2 to our financial statements included elsewhere in this Annual Report on Form 10-K, we believe that the following accounting policies are critical to understanding and evaluating our historical and future performance as these policies relate to areas that involve a significant level of estimation uncertainty and have had or are reasonably likely to have a material impact on our financial condition or results of operations.

Accrued R&D Expenses

As part of the process of preparing our financial statements, we are required to estimate our accrued R&D expenses as of each balance sheet date. This process involves reviewing open contracts and purchase orders, communicating with our personnel to identify services that have been performed on our behalf, and estimating the level of service performed and the associated cost incurred for the service when we have not yet been invoiced or otherwise notified of the actual cost. We make estimates of our accrued R&D expenses as of each balance sheet date based on facts and circumstances known to us at that time. The significant estimates in our accrued R&D

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expenses include the costs incurred for services performed by our vendors in connection with services for which we have not yet been invoiced.

We base our expenses related to R&D activities on our estimates of the services received and efforts expended pursuant to quotes and contracts with vendors that conduct R&D on our behalf. The financial terms of these agreements are subject to negotiation, vary from contract to contract, and may result in uneven payment flows.

There may be instances in which payments made to our vendors will exceed the level of services provided and result in a prepayment of the R&D expense. In accruing service fees, we estimate the time period over which services will be performed and the level of effort to be expended in each period. If the actual timing of the performance of services or the level of effort varies from our estimate, we adjust the accrual or prepaid expense accordingly. Advance payments for goods and services that will be used in future R&D activities are expensed when the activity has been performed or when the goods have been received rather than when the payment is made.

Although we do not expect our estimates to be materially different from amounts actually incurred, if our estimates of the status and timing of services performed differ from the actual status and timing of services performed, it could result in us reporting amounts that are too high or too low in any particular period. To date, there have been no material differences between our estimates of such expenses and the amounts actually incurred.

Stock-Based Compensation Expense

Stock-based compensation expense represents the grant date fair value of equity awards recognized over the requisite service period of the awards (usually the vesting period of the award) on a straight-line basis. We estimate the grant date fair value of stock-based awards, which for the years ended December 31, 2024 and 2023, consisted of stock option awards and, subsequent to completion of our IPO, rights to purchase shares under our 2024 Employee Stock Purchase Plan (ESPP), using the Black-Scholes option pricing model and recognize forfeitures as they occur. The Black-Scholes option pricing model requires the use of subjective assumptions, including the risk-free interest rate, the expected stock price volatility, the expected term of the award, the expected dividend yield, and, prior to the completion of our IPO, the estimated fair value of our common stock. Changes in these assumptions can materially affect the grant date fair value of our stock-based awards, and ultimately, how much stock-based compensation expense is recognized. These inputs are subjective and generally require significant judgment to develop. See Note 2 under “Stock-Based Compensation” and Note 11 to our financial statements included elsewhere in this Annual Report on Form 10-K for information concerning the subjectivity and judgment involved in developing these assumptions and certain of the specific inputs we used in applying the Black-Scholes option pricing model to determine the estimated fair value of stock options granted and rights to purchase ESPP shares in the years ended December 31, 2024 and 2023.

Prior to our IPO, since there was no public market for our common stock, we were required to estimate the fair value of the common stock underlying our equity awards when performing fair value calculations. The fair value of the common stock underlying our equity awards was determined on each grant date by our board of directors, taking into account input from management and independent third-party valuation analyses. All options to purchase shares of our common stock are intended to be granted with an exercise price per share no less than the fair value per share of our common stock underlying those options on the date of grant, based on the information known to us on the date of grant. In the absence of a public trading market for our common stock, on each grant date we developed an estimate of the fair value of our common stock in order to determine an exercise price for the option grants. Our determinations of the fair value of our common stock were made using methodologies, approaches, and assumptions consistent with the American Institute of Certified Public Accountants Accounting and Valuation Guide: Valuation of Privately Held Company Equity Securities Issued as Compensation (the Practice Aid).

Following our IPO, the fair value of our common stock is based on the closing price per share on the Nasdaq Global Select Market on the date of grant. We will continue to use judgment in evaluating the interest rates, expected stock price volatility, expected terms of the stock-based awards, and expected dividend yield utilized for our stock-based compensation expense calculations on a prospective basis.

Emerging Growth Company and Smaller Reporting Company Status

As an emerging growth company under the Jumpstart Our Business Startups Act of 2012 (the JOBS Act), we can take advantage of an extended transition period for complying with new or revised accounting standards. This period allows an emerging growth company to delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have elected to avail ourselves of this exemption from new or revised accounting standards and, therefore, our financial statements may not be comparable to companies that comply with new or revised accounting pronouncements as of public company effective dates. We

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also intend to rely on other exemptions provided by the JOBS Act, including without limitation, not being required to comply with the auditor attestation requirements of Section 404(b) of Sarbanes-Oxley for so long as we are exempt from doing so.

We will remain an emerging growth company until the earliest of (i) December 31, 2029, which is the last day of the fiscal year following the fifth anniversary of the consummation of our IPO; (ii) the last day of the fiscal year in which we have total annual gross revenue of at least $1.235 billion; (iii) the last day of the fiscal year in which we are deemed to be a “large accelerated filer” as defined in Rule 12b-2 under the Exchange Act, which would occur if the market value of our common stock held by non-affiliates exceeded $700.0 million as of the last business day of the second fiscal quarter of such year; or (iv) the date on which we have issued more than $1.0 billion in nonconvertible debt securities during the prior three-year period.

We are also a smaller reporting company as defined in the Exchange Act. We may continue to be a smaller reporting company even after we are no longer an emerging growth company. We may take advantage of certain of the scaled disclosures available to smaller reporting companies and will be able to take advantage of these scaled disclosures for so long as our voting and non-voting common stock held by non-affiliates is less than $250.0 million measured on the last business day of our second fiscal quarter, or our annual revenue is less than $100.0 million during the most recently completed fiscal year and our voting and non-voting common stock held by non-affiliates is less than $700.0 million measured on the last business day of our second fiscal quarter.

Recently Adopted and Issued Accounting Pronouncements

See Note 2 to our financial statements included elsewhere in this Annual Report on Form 10-K for recently adopted accounting pronouncements and recently issued accounting pronouncements not yet adopted.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

Interest Rate Risk

As of December 31, 2024, our cash, cash equivalents, and short-term investments consisted of cash held in readily available checking and money market accounts, as well as short-term debt securities. Our primary exposure to market risk is interest rate sensitivity, which is affected by changes in the general level of United States interest rates. However, because of the short-term nature of the instruments in our portfolio, we believe that our exposure to interest rate risk is not significant, and a hypothetical sudden 10% change in market interest rates would not be expected to have a material impact on our financial condition or results of operations during the periods presented.

Foreign Currency

We contract with vendors in foreign countries, including countries in Europe and the Asia Pacific. We are therefore subject to fluctuations in foreign currency rates in connection with these agreements, however we believe our exposure to foreign currency exchange rate risk is not significant and we do not hedge our foreign currency exchange rate risk.

Net realized and unrealized gains and losses from foreign currency transactions are reported in other income (expense), net, in the statements of operations and comprehensive loss. The impact of foreign currency costs on our operations have been negligible for all periods presented.

Inflation Risk

Inflation generally affects us by increasing our cost of labor and clinical trial costs. We do not believe that inflation has had a material effect on our results of operations during the periods presented.

Item 8. Financial Statements and Supplementary Data.

Our financial statements required to be filed pursuant to this Item 8, together with the report of our independent registered public accounting firm, appear beginning on page F-1 of this Annual Report on Form 10-K.

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

None.

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Item 9A. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our periodic and current reports that we file with the SEC is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable and not absolute assurance of achieving the desired control objectives. In reaching a reasonable level of assurance, management necessarily was required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures. In addition, the design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions; over time, controls may become inadequate because of changes in conditions, or the degree of compliance with policies or procedures may deteriorate. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

Our management, with the participation of our principal executive officer and our principal financial officer, evaluated, as of the end of the period covered by this Annual Report on Form 10-K, 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 that evaluation, our principal executive officer and principal financial officer have concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.

Management’s Report and Attestation Report on Internal Control over Financial Reporting

This Annual Report on Form 10-K does not include a report of management’s assessment regarding internal control over financial reporting or an attestation report of our independent registered public accounting firm due to a transition period established by rules of the SEC for newly public companies. In addition, following such transition period, our future Annual Reports on Form 10-K will not include an attestation report of our independent registered public accounting firm for so long as we qualify as an “emerging growth company” or a non-accelerated filer.

Changes in Internal Control over Financial Reporting

There have been no changes in our internal control over financial reporting during the three months ended December 31, 2024 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Item 9B. Other Information.

Rule 10b5-1 Trading Arrangements

From time to time, our officers (as defined in Rule 16a-1(f) of the Exchange Act) and directors may enter into Rule 10b5-1 or non-Rule 10b5-1 trading arrangements (as each such term is defined in Item 408 of Regulation S-K). During the three months ended December 31, 2024, our officers or directors adopted, modified, or terminated such trading arrangements as set forth below.

Action Date Trading Arrangement

Rule 10b5-1* Non-Rule 10b5‐1** Total Shares Subject to Plan Expiration Date

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Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections.

None.

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PART III

Item 10. Directors, Executive Officers, and Corporate Governance.

The information required by this Item 10 will be included in our definitive proxy statement for our 2025 Annual Meeting of Stockholders, which we expect to be filed with the SEC within 120 days of the end of our fiscal year ended December 31, 2024 (Definitive Proxy Statement), under the headings “Election of Directors,” “Corporate Governance,” “Executive Officers,” and “Section 16(a) Beneficial Ownership Reporting Compliance,” and is incorporated herein by reference.

Item 11. Executive Compensation.

The information required by this Item 11 will be included in our Definitive Proxy Statement under the heading “Executive Compensation and Other Information,” and is incorporated herein by reference.

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

The information required by this Item 12 will be included in our Definitive Proxy Statement under the headings “Security Ownership of Certain Beneficial Owners and Management” and “Securities Authorized for Issuance Under Equity Compensation Plans,” is incorporated herein by reference.

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

The information required by this Item 13 will be included in our Definitive Proxy Statement under the headings “Certain Relationships and Related Person Transactions,” “Board Independence” and “Committees of the Board of Directors” and is incorporated herein by reference.

Item 14. Principal Accountant Fees and Services.

The information required by this Item 14 will be included in our Definitive Proxy Statement under the heading “Independent Registered Public Accountants’ Fees,” and is incorporated herein by reference.

Our independent public accounting firm is KPMG LLP, San Diego, CA, PCAOB Auditor ID: 185.

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PART IV

Item 15. Exhibits and Financial Statement Schedules.

(1)

For a list of the financial statements included herein, see Index to the 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 financial statements or the notes thereto.

(3)

Exhibits:

Exhibit Index

Exhibit Incorporated by Reference Filed

Number Description Form Date Number Herewith

3.1 Amended and Restated Certificate of Incorporation 8-K 4/2/2024 3.1

4.3 Description of the Registrant’s securities X

19.1 Boundless Bio, Inc. Insider Trading Compliance Policy and Procedures X

23.1 Consent of KPMG LLP, independent registered public accounting firm X

24.1 Power of attorney (included on signature page) X

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97.1# Policy for Recovery of Erroneously Awarded Compensation S-1 3/6/2024 10.20

101.SCH Inline XBRL Taxonomy Extension Schema With Embedded Linkbase Documents X

# Indicates management contract or compensatory plan.

* These certifications are deemed not filed for purposes of Section 18 of the Exchange Act or otherwise subject to the liability of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act or the Exchange Act.

Item 16. Form 10-K Summary

None.

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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.

Boundless Bio, Inc.

Date: March 27, 2025 By: /s/ Zachary D. Hornby

Zachary D. Hornby

President and Chief Executive Officer

(Principal Executive Officer)

Date: March 27, 2025 By: /s/ David Hinkle

David Hinkle

Senior Vice President, Finance, Controller and Treasurer

(Principal Financial and Accounting Officer)

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POWER OF ATTORNEY AND SIGNATURES

Each person whose individual signature appears below hereby authorizes and appoints Zachary D. Hornby and David Hinkle, and each of them, with full power of substitution and resubstitution and full power to act without the other, as his or her true and lawful attorney-in-fact and agent to act in his or her name, place and stead and to execute in the name and on behalf of each person, individually and in each capacity stated below, and to file any and all amendments to this annual report on Form 10-K and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing, ratifying and confirming all that said attorneys-in-fact and agents or any of them or their or his substitute or substitutes may lawfully do or cause to be done by virtue thereof.

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 and in the capacities and on the dates indicated.

Name Title Date

/s/ Zachary D. Hornby President and Chief Executive Officer March 27, 2025

Zachary D. Hornby (Principal Executive Officer)

David Hinkle (Principal Financial and Accounting Officer)

/s/ Jonathan E. Lim Chairman March 27, 2025

Jonathan E. Lim, M.D.

/s/ Christine Brennan Director March 27, 2025

Christine Brennan, Ph.D.

/s/ Kristina Burow Director March 27, 2025

Kristina Burow

/s/ James Christensen Director March 27, 2025

James Christensen, Ph.D.

/s/ Jennifer Lew Director March 27, 2025

Jennifer Lew

/s/ Nancy Whiting Director March 27, 2025

Nancy Whiting, Pharm.D

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INDEX TO FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm F-2

Statements of Cash Flows for the Years ended December 31, 2024 and 2023 F-6

Notes to Financial Statements F-7

F-1

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Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors

Boundless Bio, Inc.:

Opinion on the Financial Statements

We have audited the accompanying balance sheets of Boundless Bio, Inc. (the Company) as of December 31, 2024 and 2023, the related statements of operations and comprehensive loss, convertible preferred stock and stockholders’ equity/ (deficit), and cash flows for the years then ended, and the related notes (collectively, 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, 2024 and 2023, and the results of its operations and its cash flows for the years then ended, in conformity with U.S. generally accepted accounting principles.

Basis for Opinion

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these 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/ KPMG LLP

We have served as the Company’s auditor since 2020.

San Diego, California

March 27, 2025

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Boundless Bio, Inc.

Balance Sheets

(in thousands, except par value data)

December 31,

Assets

Current assets

Prepaid expenses and other current assets 2,276 3,452

Liabilities, convertible preferred stock, and stockholders’ equity/ (deficit)

Current liabilities

Accounts payable and accrued liabilities $ 5,354 $ 4,266

Lease liabilities, current portion — 2,195

Lease liabilities, non-current 47,632 —

Commitments and contingencies (Note 8)

Stockholders’ equity/ (deficit):

Accumulated other comprehensive income 121 40

The accompanying notes are an integral part of these financial statements.

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Boundless Bio, Inc.

Statements of Operations and Comprehensive Loss

(in thousands, except per share data)

Year EndedDecember 31,

Operating expenses:

Other income, net:

Other income, net 12 80

Comprehensive loss:

Unrealized gain on short-term investments 81 438

Net loss per share, basic and diluted $ (3.85 ) $ (40.65 )

The accompanying notes are an integral part of these financial statements.

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Boundless Bio, Inc.

Statements of Convertible Preferred Stock and Stockholders’ Equity/ (Deficit)

(in thousands)

Shares Amount Shares Amount capital income/ (loss) deficit (deficit)

Vesting of early exercised stock options — — 31 — 92 — — 92

Exercise of stock options — — 49 — 182 — — 182

Stock-based compensation — — — — 3,336 — — 3,336

Unrealized gain on short-term investments — — — — — 438 — 438

Vesting of early exercised stock options — — 1 — 6 — — 6

Exercise of stock options — — 16 — 62 — — 62

Stock-based compensation — — — — 7,516 — — 7,516

Unrealized gain on short-term investments — — — — — 81 — 81

The accompanying notes are an integral part of these financial statements.

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Boundless Bio, Inc.

Statements of Cash Flows

(in thousands)

Year EndedDecember 31,

Cash flows from operating activities

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

Depreciation and amortization 1,086 957

Accretion of investments, net (5,055 ) (3,300 )

Changes in operating assets and liabilities:

Prepaid expenses and other assets (302 ) 85

Accounts payable and accrued liabilities 775 1,663

Operating lease liabilities (2,151 ) (2,547 )

Net cash used in operating activities (60,841 ) (46,855 )

Cash flows from investing activities

Purchases of property and equipment (2,536 ) (633 )

Net cash used in investing activities (26,101 ) (38,260 )

Cash flows from financing activities

Payments of common stock offering costs (3,349 ) (1,956 )

Proceeds from the exercise of stock options 62 182

Net cash provided by financing activities 89,823 97,897

Net increase in cash and cash equivalents 2,881 12,782

Cash, cash equivalents, and restricted cash at beginning of year 24,266 11,484

Cash, cash equivalents, and restricted cash at end of year $ 27,147 $ 24,266

Components of cash, cash equivalents, and restricted cash

Cash, cash equivalents, and restricted cash at end of year $ 27,147 $ 24,266

Non-cash investing and financing activities

Change in unpaid common stock issuance costs $ (197 ) $ 197

Vesting of early exercised stock options $ 6 $ 92

Unpaid property and equipment purchases $ 400 $ —

The accompanying notes are an integral part of these financial statements.

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Boundless Bio, Inc.

Notes to Financial Statements

1.

Organization and Basis of Presentation

Description of Business

Boundless Bio, Inc. (the Company) is a clinical-stage precision oncology company dedicated to unlocking a new paradigm in cancer therapeutics to address the significant unmet need in patients with oncogene amplified tumors by targeting extrachromosomal DNA (ecDNA). The Company is focused on designing and developing small molecule drugs called ecDNA directed therapeutic candidates (ecDTx). The Company was incorporated in the state of Delaware on April 10, 2018 and is headquartered in San Diego, California.

Initial Public Offering

On April 2, 2024, the Company completed its initial public offering (IPO), pursuant to which it sold 6,250,000 shares of its common stock at a public offering price of $16.00 per share, resulting in net proceeds of approximately $87.7 million, after deducting underwriting discounts, commissions, and other offering expenses. Immediately prior to the closing of the IPO, the Company’s outstanding convertible preferred stock automatically converted into 14,740,840 shares of common stock. Following the closing of the IPO, no shares of convertible preferred stock were authorized or outstanding.

In connection with the closing of its IPO, on April 2, 2024, the Company’s certificate of incorporation was amended and restated to authorize 700,000,000 shares of common stock, par value $0.0001 per share, and 70,000,000 shares of undesignated preferred stock, par value of $0.0001 per share.

Reverse Stock Split

On March 19, 2024, the Company effected a one-for-19.5 reverse stock split of its issued and outstanding shares of common stock. Accordingly, all share and per share amounts for all periods presented in the accompanying financial statements and these notes thereto have been adjusted retroactively, where applicable, to reflect this reverse stock split and adjustment of the conversion ratios for each series of the Company’s convertible preferred stock. The par value and the number of authorized shares of the convertible preferred stock and common stock were not adjusted in connection with the reverse stock split.

Liquidity

Since the Company commenced operations in 2018, it has devoted substantially all of its efforts and resources to organizing and staffing the Company, business planning, raising capital, building its proprietary Spyglass platform, discovering its ecDTx, developing its ecDNA diagnostic, establishing its intellectual property portfolio, conducting research, preclinical studies, and clinical trials, establishing arrangements with third parties for the manufacture of its ecDTx and related raw materials, and providing other general and administrative support for these operations. The Company does not have any products for sale and has not generated any revenue to date. The Company has funded its operations primarily from the sale and issuance of shares of its convertible preferred stock and common stock.

As of December 31, 2024, the Company had cash, cash equivalents, and short-term investments of $152.1 million. The Company believes that its existing cash, cash equivalents, and short-term investments will be sufficient to fund its operations for at least twelve months from the issuance date of the accompanying financial statements.

Since inception, the Company has incurred significant operating losses and negative cash flows from its operations and expects that it will continue to do so into the foreseeable future as it continues its development of, seeks regulatory approval for, and potentially commercializes any of its ecDTx and seeks to discover and develop additional ecDTx, utilizes third parties to manufacture its ecDTx and related raw materials, seeks to develop its ecDNA diagnostic, hires additional personnel, and expands and protects its intellectual property. If the Company obtains regulatory approval for any of its ecDTx, it expects to incur significant commercialization expenses related to product sales, marketing, manufacturing, and distribution. The Company does not expect to generate any revenue from product sales until it successfully completes development of and obtains regulatory approval for one or more of its ecDTx, which the Company expects will take several years and may never occur. As of December 31, 2024, the Company had an accumulated deficit of $201.5 million, and, during the year ended December 31, 2024, the Company incurred a net loss of $$65.4 million and had negative cash flows from operations of $60.8 million. As the Company continues to pursue its business plan, it will need to acquire a substantial amount of additional funding until such time as it is able to generate significant revenues to fund its research and development activities and operations. Accordingly, the Company expects to finance its cash requirements through equity offerings, debt financings, or other capital

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Boundless Bio, Inc.

Notes to Financial Statements

sources, including potential collaborations, licenses, and other similar arrangements. There can be no assurance that the Company will be successful in acquiring additional funding or that any additional funding would be sufficient to continue operations in future years.

Basis of Presentation

The accompanying financial statements have been prepared in accordance with United States generally accepted accounting principles (US GAAP). Any reference in these notes to applicable guidance is meant to refer to US GAAP as found in the Accounting Standards Codification (ASC) and Accounting Standards Updates (ASU) promulgated by the Financial Accounting Standards Board (FASB).

2.

Summary of Significant Accounting Policies

Use of Estimates

The preparation of financial statements in conformity with US GAAP requires management to make estimates and assumptions that impact the reported amounts of assets, liabilities, revenue and expenses, and the disclosure of contingent assets and liabilities in the Company’s financial statements and accompanying notes. Although these estimates are based on the Company’s knowledge of current events and actions it may undertake in the future, actual results may materially differ from these estimates and assumptions.

On an ongoing basis, management evaluates its estimates, primarily related to stock-based compensation, the fair value of its investments, accrued research and development costs and, prior to the closing of its IPO, its common stock. These estimates are based on historical data and experience, as well as various other factors 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 that are not readily apparent from other sources. The Company’s estimates relating to stock-based compensation expense require the selection of appropriate valuation methodologies and models, and significant judgment in evaluating ranges of assumptions and financial inputs.

Cash, Cash Equivalents, and Restricted Cash

The Company considers all highly liquid investments with an original maturity of three months or less when purchased to be cash equivalents. Cash and cash equivalents include cash in readily available checking and money market accounts.

The balance reflected in these financial statements as restricted cash represents a deposit account pledged as collateral to secure a standby letter of credit required as a security deposit under the Company’s headquarters facility lease. The Company has classified the restricted cash as a noncurrent asset on its balance sheets as of December 31, 2024 and 2023.

Concentration of Credit Risk

Financial instruments, which potentially subject the Company to the concentration of credit risk, consist primarily of cash, cash equivalents, and investments. The Company maintains deposits in federally insured financial institutions which exceeded federally insured limits by $1.4 million as of December 31, 2024. Management believes that the Company is not exposed to significant credit risk due to the financial position of the depository institutions in which those deposits are held. The Company’s investment policy includes guidelines for the quality of the related institutions and financial instruments and defines allowable investments that the Company may invest in, which the Company believes minimizes its exposure to concentration of credit risk.

Short-Term Investments

Short-term investments consist of money market funds, U.S. government obligations, corporate debt securities, government agency securities, asset-backed securities, and commercial paper. The Company obtains pricing information from its investment manager and generally determines the fair value of investment securities using standard observable inputs, including reported trades, broker/dealer quotes, and bid and/or offers. The Company classifies its investment securities as available-for-sale, as the sale of such securities may be required prior to maturity. Management determines the appropriate classification of its investments in debt securities at the time of purchase. Investments with original maturities beyond three months at the date of purchase and which mature at, or less than 12 months from, the balance sheet date are classified as short-term investments. Available-for-sale securities are carried at fair value, with the unrealized gains and losses reported as accumulated other comprehensive income (loss) until realized. The amortized cost of available-for-sale debt securities is adjusted for amortization of premiums and accretion of discounts to maturity. Such

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Boundless Bio, Inc.

Notes to Financial Statements

amortization and accretion are included in interest income. The cost of securities sold is based on the specific identification method. Interest and dividends on securities classified as available-for-sale are included in interest income.

At each balance sheet date, the Company reviews its available-for-sale debt securities that are in an unrealized loss position to determine whether the unrealized loss or any potential credit losses should be recognized in the statements of operations. For available-for-sale debt securities in an unrealized loss position, the Company first assesses whether it intends to sell, or it is more likely than not that it will be required to sell, the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security’s amortized cost basis is written down to fair value through net income (loss). For available-for-sale securities that do not meet the aforementioned criteria, the Company evaluates whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, the Company considers the severity of the impairment, any changes in interest rates, changes to the underlying credit ratings and forecasted recovery, among other factors. The credit-related portion of unrealized losses, and any subsequent improvements, are recorded in other income, net through an allowance account. There have been no impairment or credit losses recognized during any of the periods presented.

Fair Value Measurements

Certain assets and liabilities are carried at fair value under US GAAP. Fair value is defined as an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement determined based on assumptions that market participants would use in pricing an asset or liability. Financial assets and liabilities carried at fair value are classified and disclosed in one of the following three levels of the fair value hierarchy, of which the first two are considered observable and the last is considered unobservable:

Level 1—Quoted prices in active markets for identical assets or liabilities.

Level 2—Quoted prices for similar assets and liabilities in active markets, quoted prices in markets that are not active, or inputs which are observable, either directly or indirectly, for substantially the full term of the asset or liability.

Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to determining the fair value of the assets or liabilities, including pricing models, discounted cash flow methodologies and similar techniques.

Cash, cash equivalents, and short-term investments are carried at fair value, determined according to the fair value hierarchy described above. The carrying values of the Company’s prepaid expenses, accounts payable, and accrued expenses approximate their fair value due to the short-term nature of these assets and liabilities. None of the Company’s non-financial assets or liabilities are recorded at fair value on a non-recurring basis.

Deferred Offering Costs and Common Stock Issuance Costs

The Company capitalizes certain legal, professional, accounting, and other third-party fees that are directly associated with in-process equity financings as deferred offering costs until such financings are consummated. After consummation of the equity financing, these costs are recorded in stockholders’ equity (deficit) as a reduction of proceeds generated as a result of the offering. As of December 31, 2024 and 2023, there were $0 and $2.2 million of deferred offering costs, respectively. At the closing of the IPO, the amounts recorded in deferred offering costs were reclassified to additional paid-in capital within stockholders' equity.

Property and Equipment, Net

Property and equipment, including leasehold improvements, are stated at cost less accumulated depreciation and amortization. Depreciation and amortization are recorded using the straight-line method over the estimated useful lives of the related assets, which range from three to seven years. Leasehold improvements are amortized on a straight-line basis over the shorter of the estimated useful lives of the assets or the remaining lease term. Repairs and maintenance charges that do not increase the useful life of the assets are charged to operating expenses as incurred.

Impairment of Long-Lived Assets

An impairment loss is recorded if and when events and circumstances indicate that any of the Company’s long-lived assets might be impaired and the undiscounted cash flows estimated to be generated by those assets are less than the carrying amount of those assets. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the book values of the assets exceed their fair value. The Company has not recognized any impairment losses in any of the periods presented in these financial statements.

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Boundless Bio, Inc.

Notes to Financial Statements

Leases

At the inception of an arrangement, the Company determines whether the arrangement is or contains a lease and whether such a lease should be classified as a financing lease or operating lease based on the unique facts and circumstances present, the existence of an identified asset(s), if any, and the Company’s control over the use of the identified asset(s), if applicable. In 2024 and 2023, the Company leased real estate facilities under non-cancelable operating leases with various expiration dates through fiscal year 2034. As of December 31, 2024, the Company had only one such operating lease, which expires in 2034. As of December 31, 2024 and 2023, the Company had no financing leases.

Operating leases with a term greater than one year are recognized as right-of-use (ROU) assets and lease liabilities in the accompanying balance sheets. Operating lease ROU assets represent the Company’s right to use an underlying asset for the lease term, and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. The Company considers the lease term to be the non-cancelable period that it has the right to use the underlying asset, together with any periods where it is reasonably certain it will exercise an option to extend (or not terminate) the lease. The Company does not assume renewals or early terminations unless it is reasonably certain to exercise these options.

Operating lease liabilities are recognized at the lease commencement date based on the present value of lease payments over the lease term discounted based on (i) the interest rate implicit in the lease if that rate is readily determinable, or if not, (ii) the Company’s incremental borrowing rate (which is the estimated interest rate the Company would be required to pay for a collateralized borrowing equal to the total lease payments over a similar term as the lease term and in a similar economic environment). Because the Company’s operating leases do not provide an implicit rate, the Company estimates its incremental borrowing rate based on the information available at the lease commencement date for borrowings with a similar term. The Company’s operating lease ROU assets are measured based on the corresponding operating lease liability adjusted for (i) payments made to the lessor at or before the commencement date, (ii) initial direct costs incurred and (iii) tenant incentives under the lease.

Operating lease costs are recognized on a straight-line basis over the lease term. The Company elected not to allocate consideration between lease and non-lease components. Variable lease payments are recognized in the period in which the obligations for those payments are incurred. In addition, the Company elected not to recognize lease assets or lease liabilities for leases with a term of 12 months or less for all asset classes.

Segment Reporting

Operating segments are identified as components of an enterprise about which discrete financial information is available for evaluation by the chief operating decision-maker (CODM) in making decisions regarding resource allocation and assessing performance. The Company operates and manages its business as one reporting and one operating segment, which is the business of designing and developing ecDTx, for which no revenue has been recorded. All of the Company’s long-lived assets are located in the United States. The Company’s CODM is its Chief Executive Officer. For purposes of assessing the Company’s financial performance and making resource allocation decisions, the CODM reviews total expenses, as well as expenses by nature and functional department.

Convertible Preferred Stock

The Company’s convertible preferred stock is classified as temporary equity in the accompanying balance sheet as of December 31, 2023 and excluded from stockholders’ equity/ (deficit) as the potential redemption of such stock was outside the Company’s control and would have required the redemption of the then-outstanding convertible preferred stock. The convertible preferred stock was not redeemable except for in the event of a liquidation, dissolution, or winding up of the Company. Costs incurred in connection with the issuance of convertible preferred stock were recorded as a reduction of gross proceeds from issuance. The Company did not accrete the carrying values of the convertible preferred stock to the redemption values since the occurrence of these events was not considered probable as of December 31, 2023. Immediately prior to the closing of the IPO on April 2, 2024, the Company’s outstanding convertible preferred stock automatically converted into 14,740,840 shares of common stock. Following the closing of the IPO, no shares of convertible preferred stock were authorized or outstanding.

Research and Development Expenses

Research and development (R&D) expenses are costs incurred by the Company in connection with its discovery and research efforts and the preclinical and clinical development of ecDTx. The Company’s R&D expenses include direct program costs, consisting of expenses incurred under arrangements with third parties, such as contract research organizations, contract manufacturers, consultants and its scientific advisors; and indirect costs, consisting of personnel-related expenses, including salaries, bonuses, benefits, travel, and

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Notes to Financial Statements

stock-based compensation expenses, for those individuals involved in R&D efforts, the costs of lab and pharmacology supplies and acquiring, developing, and manufacturing preclinical and clinical study materials, and facilities and depreciation, which include direct and allocated expenses for rent of facilities and depreciation of equipment. R&D costs are expensed as incurred.

The Company records accruals for estimated R&D costs, comprising payments for work performed by third party contractors, labs, and others. Some of these contractors bill monthly based on actual services performed, while others bill periodically based upon achieving certain contractual milestones. For the latter, the Company accrues the expenses as goods or services are used or rendered. Non-refundable advance payments for goods or services that will be used or rendered for future R&D activities are deferred and capitalized as prepaid expenses until the related goods are delivered or services are performed.

General and Administrative Expenses

General and administrative (G&A) expenses consist primarily of personnel-related expenses, including salaries, bonuses, benefits, travel, and stock-based compensation expenses, for employees in executive, accounting and finance, business development, human resources, legal, and other administrative functions. Other significant G&A expenses include allocated facility-related costs, legal fees relating to corporate and intellectual property matters, professional fees for accounting and tax services, consulting fees, and insurance costs. G&A costs are expensed as incurred.

Costs related to filing and pursuing patent applications are recorded as G&A expense and are expensed as incurred since the recoverability of such expenditures is uncertain.

Stock-Based Compensation

The Company measures employee and nonemployee stock-based awards based on the estimated fair value of the awards on the date of grant and records compensation expense on a straight-line basis over the requisite service period of the award. All stock-based compensation costs are recorded in the statements of operations and comprehensive loss based upon the underlying employees' or nonemployees' roles within the Company. Forfeitures are accounted for as they occur.

The fair value of stock option grants and shares purchasable under the Company's 2024 Employee Stock Purchase Plan (ESPP) is estimated on the date of grant using the Black-Scholes options-pricing model, which requires inputs based on certain subjective assumptions, including the:

Fair value of common stock. Subsequent to the closing of the IPO, the fair value of the Company’s common stock is the closing price per share on the Nasdaq Global Select Market on the date of grant of the award. However, prior to the closing of the IPO, the Company utilized methodologies, approaches, and assumptions consistent with the American Institute of Certified Public Accountants’ Accounting and Valuation Guide, Valuation of Privately Held Company Equity Securities Issued as Compensation (The Practice Aid) to estimate the fair value of its common stock. The fair value of the common stock was determined based upon a variety of factors, including the Company’s stage of development and material risks related to the business; the progress of the Company’s R&D programs; business conditions and projections; financial position and historical and forecasted performance and operating results; the lack of an active public market for the Company’s common stock and preferred stock; the prices of the Company’s preferred stock sold to or exchanged between outside investors in arm’s length transactions and the rights, preferences, and privileges of the preferred stock as compared to those of the Company’s common stock, including liquidation preferences of the Company’s preferred stock; the likelihood of achieving a liquidity event, such as an initial public offering or sale of the Company in light of prevailing market conditions; the hiring of key personnel and the experience of management; trends and developments in the Company’s industry; and external market conditions affecting the biopharmaceutical industry and trends within the biopharmaceutical industry.

Risk-free interest rate. The risk-free interest rate is based on the U.S. Treasury’s rates for U.S. Treasury zero-coupon bonds with maturities similar to the expected term of the award being valued.

Expected volatility. Given that there was no active trading market for the Company’s common stock prior to the completion of the IPO and there is not yet sufficient trading history for the Company’s common stock, the Company derived the expected volatility from the average historical volatilities of the common stock of a group of comparable publicly-traded companies in the biotechnology industry over a period approximately equal to the expected term of the award being valued. The Company will continue to apply this process until a sufficient amount of historical information regarding the volatility of its own stock price becomes available.

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Notes to Financial Statements

Expected term. The expected term represents the period that the stock-based awards are expected to be outstanding. The expected term of stock options issued is determined using the simplified method (based on the mid-point between the vesting date and the end of the contractual term) as the Company has concluded that its stock option exercise history does not provide a reasonable basis upon which to estimate expected term. For rights to purchase shares of common stock under the ESPP, the expected term represents the period from the first day of the offering period to the purchase date.

Expected dividend yield. The Company has never paid dividends on its common stock and does not anticipate paying any dividends in the foreseeable future. Therefore, the Company used an expected dividend yield of zero.

The fair value of each restricted common stock award is estimated on the date of grant based on the fair value of the Company’s common stock on that same date.

The assumptions used in determining the estimated fair value of stock-based awards represent management’s best estimates and involve inherent uncertainties and the application of significant judgment.

Income Taxes

The Company accounts for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the Company’s financial statements and related disclosures. Deferred tax assets and liabilities are determined on the basis of the differences between the Company’s financial statements and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date. The Company recognizes net deferred tax assets to the extent that the Company believes these assets are more likely than not to be realized. In making such a determination, management considers all available positive and negative evidence, including projected future taxable income, future reversals of existing taxable temporary differences, tax-planning strategies, and results of recent operations. If management determines that the Company would be able to realize its deferred tax assets in the future in excess of their net recorded amount, management would make an adjustment to the deferred tax asset valuation allowance, which would reduce the provision for income taxes. Interest and penalties are included as a component of income tax expense.

The Company records uncertain tax positions on the basis of a two-step process whereby (i) management determines whether it is more likely than not that the tax positions will be sustained on the basis of the technical merits of the position and (ii) for those tax positions that meet the more-likely-than-not recognition threshold, management recognizes the largest amount of tax benefit that is more than 50 percent likely to be realized upon ultimate settlement with the related tax authority. Any resulting unrecognized tax benefits are included within the related tax liability.

Comprehensive income (loss)

The Company reports all components of comprehensive income (loss), including net loss, in the financial statements in the period in which they are recognized. Comprehensive income (loss) is defined as the change in equity during a period from transactions and other events and circumstances from non-owner sources, including unrealized gains and losses on marketable securities. Other comprehensive income (loss) includes unrealized gains and losses on marketable securities, which was the only difference between net loss and comprehensive loss for the applicable periods.

Net Loss Per Share

Basic net loss per common share attributable to common stockholders is calculated by dividing the net loss by the weighted-average number of shares of common stock outstanding during the period, without consideration of potentially dilutive securities. Diluted net loss per share attributable to common stockholders is calculated by dividing the net loss by the weighted-average number of shares of common stock and potentially dilutive securities outstanding during the period. The Company’s potentially dilutive securities, which include its options to purchase common stock, common stock subject to repurchase related to unvested restricted stock and options early exercised, and, for periods prior to April 2, 2024, convertible preferred stock, have been excluded from the calculation of diluted net loss per share as the effect would reduce the net loss per share. Therefore, the weighted-average number of shares of common stock outstanding used to calculate both basic and diluted net loss per share is the same.

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Notes to Financial Statements

Emerging Growth Company Status

The Company is an emerging growth company (EGC) as defined in the Jumpstart Our Business Startups Act of 2012, as amended (the JOBS Act), and may take advantage of certain exemptions from various reporting requirements that are applicable to other public companies that are not EGCs. The Company may take advantage of these exemptions until it is no longer an EGC under Section 107 of the JOBS Act and has elected to use the extended transition period for complying with new or revised accounting standards. As a result of this election, the Company’s financial statements may not be comparable to companies that comply with public company FASB standards’ effective dates.

Recently Adopted Accounting Pronouncements

In November 2023, the FASB issued Accounting Standard Update (ASU) 2023-07 – Segment Reporting (Topic 280) – Improvements to Reportable Segment Disclosures, which intends to improve financial reporting, primarily through enhanced disclosure requirements for significant segment expenses. ASU 2023-07 applies to all public entities that are required to report segment information, including those with only one reportable segment. The Company adopted the guidance in the fiscal year beginning January 1, 2024 and there was no impact on the Company’s reportable segments identified. For further information, refer to the “Segment Reporting” section in this Note 2 and in Note 14 "Segment Information."

Recently Issued Accounting Pronouncements Pending Adoption

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (ASU 2023-09) to improve the transparency of income tax disclosures by requiring consistent categories and greater disaggregation of information in the effective tax rate reconciliation and income taxes paid disaggregated by jurisdiction. ASU 2023-09 also includes certain other amendments to improve the effectiveness of income tax disclosures. This new standard will be effective for annual periods beginning after December 15, 2024. The new standard permits early adoption and can be applied prospectively or retrospectively. The Company does not expect the adoption of this guidance to have a material impact on its financial statements.

In November 2024, the FASB issued ASU No. 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses (ASU 2024-03). The new guidance requires more detailed information about specified types of expenses (including purchases of inventory, employee compensation, depreciation, amortization, and depletion) in commonly presented expense captions (such as R&D and G&A) presented on the face of the statement of operations on an annual and interim basis. This guidance will be effective for annual periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027. The new standard permits early adoption and can be applied prospectively or retrospectively. The Company is evaluating the effect that this guidance will have on its financial statements and related disclosures.

3.

Fair Value Measurements

The following tables summarize the Company’s financial assets measured at fair value on a recurring basis and their respective input levels based on the fair value hierarchy described in Note 2 above (in thousands):

Fair Value Measurements Using

As of December 31, 2024 Amount Level 1 Level 2 Level 3

Assets

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Notes to Financial Statements

(1)

Included in cash and cash equivalents on the balance sheets.

(2)

Included in short-term investments on the balance sheets.

Fair Value Measurements Using

As of December 31, 2023 Amount Level 1 Level 2 Level 3

Assets

(1)

Included in cash and cash equivalents on the balance sheets.

(2)

Included in short-term investments on the balance sheets.

The Company’s money market funds are classified as Level 1 because they are valued using quoted market prices in active markets for identical assets. The Company’s investments consist of available-for-sale securities and are classified as Level 2 because their value is based on valuations using significant inputs derived from or corroborated by observable market data.

There were no transfers of assets between fair value levels for any period presented.

4.

Investments

The following tables summarize investments accounted for as available-for-sale securities (in thousands):

AcquisitionCost UnrealizedGain UnrealizedLoss Estimated Fair Value

Classified as:

Total cash equivalents and investments $ 150,416

AcquisitionCost UnrealizedGain UnrealizedLoss Estimated Fair Value

Classified as:

Short-term investments 97,046

Total cash equivalents and investments $ 118,783

On December 31, 2024 and 2023, the remaining contractual maturities of all the Company’s available-for-sale investments were less than twelve months. As of December 31, 2024 and 2023, the Company has not established an allowance for credit losses for any of its available-for-sale securities.

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Notes to Financial Statements

As of December 31, 2024, there was one available-for-sale security, with an estimated fair value of $8.0 million in a gross unrealized loss position. As of December 31, 2023, there were 24 available-for-sale securities, with an estimated fair value of $40.3 million in gross unrealized loss positions. Based on its review of these investments as of December 31, 2024 and 2023, the Company believed that the unrealized losses as of December 31, 2024 and 2023 reflected the impact of the rising interest rate environment and were not other-than-temporary in nature.

5.

Property and Equipment

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

As of December 31,

Leasehold improvements 981 46

Less accumulated depreciation and amortization 3,709 2,727

Property and equipment, net $ 4,321 $ 2,573

Depreciation and amortization expense related to property and equipment was $1.1 million and $1.0 million for the years ended December 31, 2024 and 2023, respectively.

6.

Accounts Payable and Accrued Liabilities

Accounts payable and accrued liabilities consisted of the following (in thousands):

As of December 31,

Accrued research and development costs 2,584 1,575

Total accounts payable and accrued liabilities $ 5,354 $ 4,266

7.

Lease Agreements

Operating leases

As of December 31, 2024, the Company has one facility lease for lab and office space under a non-cancellable operating lease that expires in 2034. Total lease costs were approximately $4.0 million and $2.6 million, including operating lease costs of $3.6 million and $2.6 million, and variable lease costs of $0.4 million and $0 during the years ended December 31, 2024 and 2023, respectively. The Company paid $2.6 million and $2.8 million in cash for operating leases that were included in the operating activities section of the statements of cash flows for the years ended December 31, 2024 and 2023, respectively. The remaining lease term and the discount rate of the Company’s operating lease was 9.8 years and 8.3% at December 31, 2024. The remaining lease term and the discount rate of the Company’s operating lease was 0.8 years and 8.0% at December 31, 2023. The remaining lease term does not include any renewal options at the election of the Company. The Company’s lease agreement does not contain any material residual value guarantees or material restrictive covenants.

2022 Lease

In March 2021, the Company entered into a non-cancelable operating lease for a facility in San Diego, California, which was amended in November 2021 (as amended, the 2022 Lease). The term of the 2022 Lease ended in November 2024. The 2022 Lease provided for the rental of lab and office space, contained rent escalation provisions, and required the Company to pay a portion of the operating costs related to the underlying multi-tenant facility. Based on the terms of the lease, the Company recorded a ROU asset and an associated lease liability based on the present value of the lease payments using an estimated incremental borrowing rate of

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Notes to Financial Statements

approximately 8.0% as the 2022 Lease did not have a stated rate and the implicit rate was not readily determinable. The net ROU asset of $0 and $2.0 million and associated lease liability of $0 and $2.2 million are reflected in the Company’s balance sheet as of December 31, 2024 and 2023, respectively.

As of December 31, 2024, there are no future minimum lease payments required under the 2022 Lease as the term of the lease ended in November 2024.

2024 Lease

In December 2021, the Company entered into a non-cancelable facility lease for approximately 80,168 square feet of lab and office space in San Diego, California (the 2024 Lease). The 2024 Lease commenced in November 2024 and has a 120-month term from the lease commencement date, with base rent payments under the lease commencing in July 2025, after an abatement period of 270 consecutive calendar days, and continuing through the conclusion of the term. The 2024 Lease includes base rent payments totaling $72.5 million, as well as additional payment obligations for common area maintenance and property taxes. The Company has the right to extend the term of the 2024 Lease for an additional 60 months; however, this option has not been included in the lease term as it is not reasonably assured of exercise. Additionally, as a security deposit under the 2024 Lease, the Company is required to maintain a standby letter-of-credit in the amount of $560,000, which must remain in place until November 2034 and is classified as restricted cash on the balance sheet. The Company has recorded an operating lease liability based on the present value of the lease payments using an estimated incremental borrowing rate of approximately 8.3% as the 2024 Lease does not have a stated rate and the implicit rate was not readily determinable, and an ROU asset based on the corresponding operating lease liability. The net ROU asset and associated lease liability are reflected in the Company’s balance sheet as of December 31, 2024.

Future minimum lease payments under the 2024 Lease as of December 31, 2024, exclusive of future variable lease payments, are as follows (in thousands):

Year ending December 31,

Total minimum lease payments $ 72,483

Less: Amount representing interest (24,851 )

Operating lease liabilities $ 47,632

8.

Commitments and Contingencies

Contracts

The Company enters into contracts in the normal course of business with various third parties for preclinical research studies, clinical trials, testing, manufacturing, and other services. These contracts generally provide for termination upon notice and are cancellable without significant penalty or payment and do not contain any minimum purchase commitments.

Indemnification Agreements

In the ordinary course of business, the Company may provide indemnification of varying scope and terms to vendors, lessors, business partners, and other parties with respect to certain matters including, but not limited to, losses arising out of breach of agreements or from intellectual property infringement claims made by third parties. In addition, the Company has entered into indemnification agreements with officers and members of its board of directors that will require the Company, among other things, to indemnify them against certain liabilities that may arise by reason of their status or service as officers or directors. The maximum potential future payments the Company could be required to make under these indemnification arrangements is, in many cases, unlimited. To date, the Company has not incurred any material costs because of these indemnifications. The Company has not accrued any liabilities related to

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Notes to Financial Statements

such indemnification arrangements in its financial statements as of December 31, 2024 or 2023 because it determined the likelihood of incurring a payment obligation pursuant to such arrangements was not probable.

Litigation

Liabilities for loss contingencies arising from claims, assessments, litigation, fines, penalties, and other sources are recorded when it is probable that a liability has been incurred and the amount can be reasonably estimated. There are no matters currently outstanding for which any liabilities have been accrued. The Company was not a defendant in any lawsuit for the years ended December 31, 2024 and 2023.

9.

Convertible Preferred Stock

Series A, B, and C Convertible Preferred Stock

Source: SEC EDGAR (public domain) · 10-K for the period ended 2024-12-31, filed 2025-03-27 · accession 0000950170-25-045725

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