Annual Report for Fiscal Year Ending December 31, 2025 (Form 10-K)

Management's Discussion and Analysis of Financial Condition and Results of Operations.

This Annual Report on Form 10-K contains forward-looking statements within the meaning of Section 27A of the Securities Exchange Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act. Forward-looking statements are identified by words such as "believe," "will," "may," "estimate," "continue," "anticipate," "intend," "should," "plan," "expect," "predict," "could," "potentially" or the negative of these terms or similar expressions. You should read these statements carefully because they discuss future expectations, contain projections of future results of operations or financial condition, or state other "forward-looking" information. These statements relate to our future plans, objectives, expectations, intentions and financial performance and the assumptions that underlie these statements. These forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those anticipated in the forward-looking statements. Factors that might cause such a difference include, but are not limited to, those discussed in this report in Part I, Item 1A - "Risk Factors," and elsewhere in this report. Forward-looking statements are based on our management's beliefs and assumptions and on information currently available to our management. These statements, like all statements in this report, speak only as of their date, and we undertake no obligation to update or revise these statements in light of future developments. We caution investors that our business and financial performance are subject to substantial risks and uncertainties. In addition, statements that "we believe" and similar statements reflect our beliefs and opinions on the relevant subject. These statements are based on information available to us as of the date of this Annual Report on Form 10-K. While we believe that information provides a reasonable basis for these statements, that information may be limited or incomplete. Our statements should not be read to indicate that we have conducted an exhaustive inquiry into or review of, all relevant information. These statements are inherently uncertain and investors are cautioned not to unduly rely on these statements.

Overview

We are a commercial-stage, global biopharmaceutical company focused on tackling some of the greatest challenges in cancer treatment by developing differentiated and novel product candidates. We were founded in 2018 by our chief executive officer, David Hung, M.D., who founded Medivation, Inc. and led its successful development of oncology drugs Xtandi® and talazoparib (now marketed as Talzenna®), leading to its $14.3 billion sale to Pfizer Inc. ("Pfizer") in 2016. We leverage our team's extensive expertise in medicinal chemistry, preclinical development, drug development, business development, manufacturing, and commercialization to pursue oncology targets validated by strong clinical or preclinical data and develop novel small molecules that improve the activity and overcome the liabilities of currently marketed drugs.

We commercially launched IBTROZI in the U.S. in June 2025, following its approval by the FDA on June 11, 2025 for the treatment of adult patients with locally advanced or metastatic ROS1+ NSCLC. Taletrectinib has also been approved by Japan's MHLW and by China's NMPA for the treatment of adult patients with locally advanced or metastatic ROS1+ NSCLC. Taletrectinib is being commercialized in Japan by our partner NK under the brand name IBTROZI and in China by our partner Innovent under the brand name DOVBLERON®. Taletrectinib has been granted Orphan Drug Designation by the U.S. FDA for the treatment of patients with ROS1+ NSCLC and other NSCLC indications, and was previously granted Breakthrough Therapy Designations by both the U.S. FDA and China's NMPA for the treatment of both TKI-naïve and TKI-pretreated disease patients with locally advanced or metastatic ROS1+ NSCLC.

Taletrectinib continues to be evaluated for the treatment of patients with locally advanced or metastatic ROS1+ NSCLC in two Phase 2 single-arm pivotal studies: TRUST-I in China, and TRUST-II, a global study, as well as in a confirmatory randomized Phase 3 study versus crizotinib in China known as TRUST-III. Taletrectinib is also being evaluated for the adjuvant treatment of patients with resected ROS1+ early-stage NSCLC in a global Phase 3, placebo-controlled study known as TRUST-IV.

In addition to taletrectinib, our clinical stage pipeline includes safusidenib, a novel, oral, potent, brain penetrant, targeted inhibitor of mutant isocitrate dehydrogenase 1 ("mIDH1"). Safusidenib is being evaluated in the SIGMA study, which is currently a randomized registration-enabling phase 3 study evaluating the efficacy and safety of safusidenib versus placebo for the maintenance treatment of patients with high-risk or high-grade IDH1-mutant astrocytoma following standard-of-care.

Recent Developments

Financial Overview

Since our inception in 2018, we have focused substantially all of our resources on conducting research and development activities, including drug discovery, preclinical studies, clinical trials, establishing and maintaining our intellectual property portfolio, developing our manufacturing network and managing the manufacture of clinical and research material, hiring personnel, raising capital and providing general and administrative support for these operations. Our revenue related to its out-licensing collaborative agreements consists of product revenue, upfront license fees and milestone payments, royalty revenue and research and development services revenue from its collaboration agreements. We have funded our operations to date primarily from the issuance and sale of our common and preferred stock, including through the Merger and a Private Investment in Public Equity ("PIPE") financing in connection with the Merger.

We have incurred net losses in each year since inception. As of December 31, 2025, we had an accumulated deficit of $1,115.4 million. Substantially all of our net losses have resulted from costs incurred in connection with our research and development programs and from general and administrative costs associated with our operations as well as a charge related to the acquisition of an in-process research and development asset. We expect to continue to incur significant expenses and increasing operating losses over at least the next several years. We expect our expenses will increase substantially in connection with our ongoing activities, as we:

In addition, we expect to incur additional costs associated with operating as a public company, including significant legal, audit, accounting, regulatory, tax-related, director and officer insurance, investor relations and other expenses that we did not incur as a private company. As a result, we will need substantial additional funding to support our continuing operations and pursue our growth strategy. Until such time as we can generate significant revenue from product sales, if ever, we expect to finance our operations through the public or private sale of equity, government or private party grants, debt financings or other capital sources, including potential collaborations with other companies or other strategic transactions. If we are unable to obtain additional funding, we could be forced to delay, reduce or eliminate some or all of our research and development programs, product portfolio expansion or any commercialization efforts, which could adversely affect our business prospects, or we may be unable to continue operations. If we raise funds through strategic collaborations or other similar arrangements with third parties, we may have to relinquish valuable rights to our platform technology, future revenue streams, research programs or product candidates or may have to grant licenses on terms that may not be favorable to us and/or may reduce the value of our Common Stock. Our ability to raise additional funds may be adversely impacted by potential worsening global economic conditions and disruptions to and volatility in the credit and financial markets in the United States and

worldwide. Because of the numerous risks and uncertainties associated with product development, we cannot predict the timing or amount of increased expenses or when or if we will be able to achieve or maintain profitability.

On March 3, 2025, we announced the closing of a non-dilutive financing of up to $250.0 million from Sagard. The financing is comprised of a $150.0 million synthetic royalty financing and a $100.0 million senior secured term loan. The $150 million from the synthetic royalty financing and the first $50.0 million tranche of the term loan was funded on June 25, 2025 upon FDA's approval of IBTROZI. The transaction will support the U.S. launch of IBTROZI and general corporate purposes.

Components of Results of Operations

Revenues

Prior to our commercialization of IBTROZI, substantially all of our revenues were generated from payments under prior collaboration agreements, and milestones, royalties and other revenues from our licensing arrangements. To date, these collaborative arrangements have included out-licenses of and options to out-licensing in-licensed compounds to other parties. These arrangements may include non-refundable upfront payments, contingent obligations for potential development, regulatory and commercial performance milestone payments, cost reimbursement arrangements and royalty payments. Our revenue related to our out-licensing collaborative agreements consists of product revenue, upfront license fees, milestone payments, royalty revenue and research and development services revenue from its collaboration agreements.

We receive payments from our customers based on billing terms established in the contract. Up-front payments and fees are recorded as contract liabilities (e.g., deferred revenue) upon receipt or when due until we perform our obligations under the arrangement. In the event of an early termination of a collaboration agreement, any contract liabilities would be recognized in the period in which all our obligations under the agreement have been fulfilled.

Cost of Sales

Cost of sales includes primarily of all product related costs, third-party manufacturing, distribution, employee personnel costs and amortization of our licensed market approval for IBTROZI.

Cost of Collaboration and License Agreements Revenue

Cost of collaboration and license agreements revenue includes royalties on net sales of IBTROZI owed to our licensing partner and the proportion of expense recognized under the terms of our collaboration agreements.

Research and Development Expenses

Research and development expenses include:

We expense all research and development costs in the periods in which they are incurred. Costs for certain development activities are recognized based on an evaluation of the progress to completion of specific tasks and estimates of services performed using information and data provided to us by our vendors and third-party service providers. Nonrefundable advance payments for goods or services to be received in future periods for use in research and development activities are deferred and capitalized. The capitalized amounts are then expensed as the related goods are delivered and as services are performed. We expense in-process research and development projects acquired as part of asset acquisitions that have no alternative future use.

We expect our research and development expenses to increase for the foreseeable future as we continue to invest in research and development activities related to developing our product candidates, as our product candidates advance into later stages of development, and as we begin to conduct clinical trials. The process of conducting the necessary clinical research to obtain regulatory approval is costly and time-consuming, and the successful development of our product candidates is highly uncertain. As a result, we are unable to determine the duration and completion costs of

our research and development projects or when and to what extent we will generate revenue from the commercialization and sale of any of our product candidates.

Selling, General and Administrative Expenses

Selling, general and administrative expenses consist of personnel-related costs, facilities costs, depreciation and amortization expenses and professional services expenses, including legal, human resources, audit and accounting services. Personnel-related costs consist of salaries, benefits and stock-based compensation. Facilities costs consist of rent and maintenance of facilities. We anticipate increased expenses related to compliance with the rules and regulations of the SEC, NYSE, insurance premiums, investor relations activities and other administrative and professional services.

Other Income (Expense), Net

Other income (expense) consists of change in fair value of warrant liabilities, interest earned on our cash equivalents and investments, interest expense, advisory expense related to our investments and realized gains and losses on marketable securities.

Results of Operations for the Years Ended December 31, 2025 and 2024

Revenues

The following table summarizes total revenue recognized for the years ended December 31, 2025 and 2024:

Product Revenue, Net

On June 11, 2025, we announced that the FDA approved IBTROZI for the treatment of adult patients with locally advanced or metastatic ROS1+ non-small cell lung cancer ("NSCLC"). To date, our only source of product revenue has been from the U.S. sales of IBTROZI. We began shipping IBTROZI to our U.S. customers in June 2025. Net product revenue from U.S. sales of IBTROZI was approximately $24.7 million for the year ended December 31, 2025.

Collaboration and License Agreements Revenue

Collaboration and license agreements revenue increased by $30.3 million for the year ended December 31, 2025 compared to 2024. The increase is primarily due to a $19.1 million increase in license revenue and a $6.3 million increase in research and development service revenue as a result of the milestone payment from Nippon Kayaku for the establishment of the reimbursement price in Japan in December 2025, a $1.3 million increase in royalty revenue, and a $3.6 million increase in product supply.

Costs and Expenses

The following table presents a breakdown of our costs and expenses by functional category:

Cost of Sales

Cost of sales increased by $0.9 million for the year ended December 31, 2025 was primarily due to amortization of our licensed market approval. During the year ended December 31, 2024, there were no cost of sales recognized.

Cost of Collaboration and License Agreements Revenue

Cost of collaboration and license agreements revenue increased by $1.4 million for the year ended December 31, 2025 compared to 2024. The increase was primarily due to a $2.7 million increase in royalty payment for Daiichi Sankyo offset by $1.3 million decrease in research and development service costs under the term of our collaboration agreement with Innovent.

Research and Development Expenses

Research and development expenses increased by $16.0 million for the year ended December 31, 2025 compared to 2024. The increase was primarily due to a $7.8 million increase in salaries and other benefits driven by the increase in headcount and stock-based compensation primarily related to one-time charge for the vesting of performance-based awards upon receiving U.S. FDA approval of taletrectinib, a $12.1 million increase in third-party costs related to clinical studies, and a $0.1 million increase in amortization of assembled workforce offset by a $4.0 million decrease in regulatory milestone payments to Daiichi.

Acquired In-process Research and Development Expenses

On April 9, 2024, as a result of the acquisition of AnHeart, we recorded a $425.1 million charge representing an acquired in-process research and development asset with no alternative future use in acquired in-process research and development expenses.

Selling, General and Administrative Expenses

Selling, general and administrative expenses increased by $82.3 million for the year ended December 31, 2025, compared to 2024. The increase was due to a $39.4 million increase in personnel-related costs as a result of the increase in headcount and stock-based compensation primarily related to one-time charge for the vesting of performance-based awards upon receiving U.S. FDA approval of taletrectinib, $41.0 million increase in sales and marketing expenses, a $3.1 million increase in legal fees, a $0.1 million increase in professional fees and $0.2 million increase in other expenses offset by $1.5 million decrease in foreign currency impact.

Other Income (Expense), Net

The following table presents a breakdown of our other income (expense):

Other income (expense), net decreased by $16.3 million for the year ended December 31, 2025 compared to 2024 primarily related to a decrease in interest income from investments of $5.6 million primarily due to lower treasury yield, a $13.3 million increase in interest expense offset by a $0.1 million decrease in the change in fair value of warrant liability, $2.3 million increase in other income due to government subsidy income and a $0.2 million decrease in investment advisory fees.

Liquidity, Capital Resources and Plan of Operations

From inception through December 31, 2024, our operations have been financed primarily by the sale and issuance of Series A preferred stock and common stock, including through the Merger and the PIPE investment. As of December 31, 2025, we had $529.2 million in cash, cash equivalents and marketable securities and an accumulated deficit of $1,115.4 million.

Our primary use of cash is to fund operating expenses, which consist of research and development expenses related to our clinical-stage product candidates and preclinical programs, and to a lesser extent, general and administrative expenses. Cash used to fund operating expenses is impacted by the timing of when we pay these expenses, as reflected in the change in our outstanding accounts payable and accrued expenses.

On March 3, 2025, we announced the closing of a non-dilutive financing of up to $250.0 million from Sagard. The financing is comprised of a $150.0 million (the "Investment Amount") synthetic royalty financing agreement with Sagard Healthcare Partners (Delaware) II LP (the "RIF Agreement") and a $100.0 million senior secured term loan with Sagard Holdings Manager LP (the "Loan Agreement"). The Investment Amount and a $50.0 million tranche of the term loan was funded on June 25, 2025, following FDA's approval of IBTROZI. The second tranche of $50.0 million of the term loan will be available at our option until June 30, 2026, because we have achieved first U.S. commercial sale of IBTROZI.

Under the RIF Agreement, in exchange for the Investment Amount, we have agreed to make tiered royalty payments to Sagard on U.S. net sales of IBTROZI equal to 5.5% of annual U.S. net sales up to $600 million and 3.0% of annual U.S. net sales between $600 million and $1 billion. We will retain all annual U.S. net sales above $1 billion. Our obligation to make the royalty payments will cease upon the earliest occurrence of total royalty payments reaching 1.6 times of the Investment Amount by the calendar quarter ending on June 30, 2031, 1.75 times of the Investment Amount by the calendar quarter ending on June 30, 2034, or 2.0 times of the Investment Amount thereafter. To the extent we have not made royalty payments totaling at least 100% of the Investment Amount by February 1, 2043, we will be required to make a true up payment in an amount equal to such shortfall (the "True Up Payment"). In addition, if certain events occur, including certain bankruptcy events, non-payment of Payments, a change of control, expiration or termination of certain intellectual property rights or marketing authorization, an out-license or sale of all of the rights in and to IBTROZI in the United States and (subject to applicable cure periods) non-compliance with the covenants in the RIF Agreement, we may be required to repurchase the synthetical royalty financing at a repurchase price ranging from 1.4 to 2.0 times of the Investment Amount, depending on the time of such event, less all royalty payments we made by then under the Loan Agreement, the term loan will bear interest at the secured overnight financing rate ("SOFR") plus a margin of 6.00%, subject to a 4.00% SOFR floor. There are no scheduled amortization

payments associated with the term loan, with all outstanding principal due at maturity. The transaction will support the U.S. commercial launch of IBTROZI and general corporate purposes.

Based upon our current operating plan, we believe that our existing cash, cash equivalents and marketable securities as of December 31, 2025, will enable us to fund our operating expenses and capital expenditure requirements through at least the next 12 months.

We expect to incur substantial expenses in the foreseeable future for the development and commercialization of our product candidates and ongoing internal research and development programs. At this time, we cannot reasonably estimate the nature, timing or aggregate amount of costs for our development, commercialization, and internal research and development programs. However, in order to complete our current and future preclinical studies and clinical trials, and to complete the process of obtaining regulatory approval for our product candidates, as well as to commercialize our product candidates, we may require substantial additional funding in the future.

Cash Flows

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

Operating Activities

In 2025, cash used in operating activities of $173.4 million was attributable to a net loss of $204.6 million, net change of $12.0 million in our net operating assets and liabilities offset by non-cash charges of $43.2 million. The change in operating assets and liabilities was primarily due to a $3.4 million increase in accounts receivable, $11.4 million increase in inventory, $7.9 million decrease in contract liabilities, $4.3 million increase in prepaid expenses and other current assets, $0.8 million increase in other non-current assets offset by $3.1 million increase in accounts payable, $12.4 million increase in accrued expenses, and $0.3 million decrease in interest receivable on marketable securities. The non-cash charges consisted primarily of stock-based compensation of $35.9 million, $1.8 million of depreciation and amortization, $0.3 million of lease expense, $10.1 million in interest expense, $0.7 million of amortization of debt issuance costs, changes in fair value of warrant liability of $0.8 million offset by amortization of premium on marketable securities of $5.3 million, and $1.1 million of foreign currency transaction loss.

In 2024, cash used in operating activities of $130.4 million was attributable to a net loss of $567.9 million, a net change of $12.5 million in our net operating assets and liabilities offset by non-cash charges of $450.0 million. The change in operating assets and liabilities was primarily due to a $12.7 million increase in accounts receivable, $6.0 million increase in other non-current assets, $3.0 million increase in prepaid expenses and other current assets and $1.6 million decrease in accounts payable offset by a $6.8 million increase in accrued expenses, $3.9 million increase in contract liabilities and $0.1 million decrease in interest receivable on marketable securities. The non-cash charges consisted primarily of $425.1 million of acquired in-process research and development, stock-based compensation of $32.3 million, changes in fair value of warrant liability of $0.9 million, $0.7 million of depreciation and amortization and $0.2 million of net loss on disposal of property and equipment offset by amortization of premium on marketable securities of $9.0 million and $0.2 million of non cash lease expense.

Investing Activities

In 2025, cash provided by investing activities of $99.5 million was related to the $462.3 million of proceeds from the sale of marketable securities offset by purchase of marketable securities of $354.4 million, $8.0 million payment for capitalized market approval intangibles and $0.4 million purchase of property and equipment.

In 2024, cash provided by investing activities of $122.7 million was related to the $450.1 million of proceeds from the sale of marketable securities, $19.9 million cash acquired from the acquisition of AnHeart offset by purchase

of marketable securities of $339.7 million, $7.4 million of transaction costs related to the acquisition of AnHeart and purchase of property and equipment of $0.2 million.

Financing Activities

In 2025, cash provided by financing activities of $202.5 million was related to the $150.0 million proceeds from the RIF Agreement, $60.1 million proceeds from borrowings, $10.1 million proceeds from exercise of options and $1.3 million of proceeds from issuance of Common Stock under the Employee Stock Purchase Plan offset by $6.6 million payment of debt issuance costs, $11.9 million of debt repayments, and $0.5 million payment for revenue interest financing agreement.

In 2024, cash provided by financing activities of $0.3 million was related to the $4.5 million proceeds from exercise of options and $0.4 million of proceeds from issuance of Common Stock under the Employee Stock Purchase Plan and $12.6 million of proceeds from borrowings offset by $17.2 million of debt repayments.

Critical Accounting Policies and Significant Judgments and Estimates

Our management's discussion and analysis of financial condition and results of operations is based upon our consolidated financial statements, which have been prepared in accordance with GAAP. The preparation of these consolidated financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses. On an on-going basis, we evaluate our critical accounting policies and estimates. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable in 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 and conditions. While our significant accounting policies are described in the notes to our consolidated financial statements, we believe that the following critical accounting policies are most important to understanding and evaluating our reported financial results.

While our significant accounting policies are described in the notes to our consolidated financial statements, we believe that the following critical accounting policies are most important to understanding and evaluating our reported financial results.

Revenue Recognition

We apply ASC Topic 606, "Revenue from Contracts with Customers" ("ASC 606") to account for our revenue transactions. Under ASC 606, an entity recognizes revenue when its customer obtains control of promised goods or services, in an amount that reflects the consideration that the entity expects to receive in exchange for those goods or services. To determine revenue recognition for arrangements that an entity determines are within the scope of ASC 606, the entity performs the five-step model. We only apply the five-step model to contracts when it is probable that the entity will collect the consideration to which it is entitled in exchange for the goods or services it transfers to the customer. Once a contract is determined to be within the scope of ASC 606 at contract inception, we review the contract to determine which performance obligations it must deliver and which of these performance obligations are distinct. We recognize as revenue the amount of the transaction price that is allocated to each performance obligation when that performance obligation is satisfied or as it is satisfied. The Company recognizes shipping and handling costs as an expense in cost of revenue. Accounts receivable represent amounts invoiced and revenues recognized prior to invoicing when we have satisfied our performance obligation and have the unconditional right to payment.

Product revenue, net

We recognize product revenue, net of variable consideration related to certain allowances and accruals, when the customer takes control of the product, which is typically upon delivery to the customer. Product revenue is recorded at the net sales price, or transaction price. We record product revenue reserves, which are classified as a reduction in product revenues, to account for the components of variable consideration. Variable consideration includes the following components: chargebacks, government rebates, commercial payor rebates, trade discounts and allowances, product returns, and co-payment assistance. Calculating certain of these items involves estimates and judgments based on sales or invoice data, contractual terms, historical utilization rates, new information regarding changes in applicable regulations and guidelines that would impact the amount of the actual rebates, our expectations regarding future utilization rates and channel inventory data. We review the adequacy of our provisions for sales deductions on a quarterly basis. Amounts accrued for sales deductions are adjusted when trends or significant events indicate that

adjustment is appropriate and to reflect actual experience. The most significant items deducted from gross product sales where we exercise judgment are rebates, sales returns and chargebacks.

Collaborative Arrangements

In November 2018, the FASB issued Topic 808, "Collaborative Arrangements" ("ASC 808"): Clarifying the Interaction between ASC 808 and ASC 606. This update clarifies that certain transactions between participants in a collaborative arrangement should be accounted for under ASC 606 when the counterparty is a customer and precludes an entity from presenting consideration from a transaction in a collaborative arrangement as revenue from contracts with customers if the counterparty is not a customer for that transaction. We adopted this standard for all periods presented. We enter into collaborative arrangements for the research and development, manufacture and/or commercialization of drug products and drug candidates. We assessed and determined that none of the collaboration agreements entered into during the periods presented were within the scope of ASC 808, as all of the agreements did not involve active participation by both parties in a joint research activity, and therefore did not qualify as collaborative arrangements under ASC 808. We have determined that all the elements of the above collaborations are reflective of a vendor-customer relationship and therefore within the scope of ASC 606. In determining the appropriate amount of revenue to be recognized as it fulfills its obligations under each of its agreements, we perform the five-step model under ASC 606 noted above. We recognize revenue to depict the transfer of control of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to receive in exchange for those goods or services. Our collaborative arrangements may contain more than one unit of account, or performance obligation, including grants of licenses to intellectual property rights, agreements to provide research and development services and other deliverables. The collaborative arrangements do not include a right of return for any deliverable. As part of the accounting for these arrangements, we must develop assumptions that require judgment to determine the stand-alone selling price for each performance obligation identified in the contract. In developing the stand-alone selling price for a performance obligation, we consider competitor pricing for a similar or identical product, market awareness of and perception of the product, expected product life and current market trends. In general, the consideration allocated to each performance obligation is recognized when the respective obligation is satisfied either by delivering a good or providing a service, limited to the consideration that is not constrained. Non-refundable payments received before all of the relevant criteria for revenue recognition are satisfied are recorded as contract liabilities.

Licenses of intellectual property

If a license to our intellectual property is determined to be distinct from the other promises or performance obligations identified in the contract, we recognize revenue from the portion of the transaction price allocated to the license at a point in time, when the license is transferred to the customer and the customer is able to benefit from the license.

Research and development services

The portion of a transaction price allocated to research and development services performance obligations is deferred and recognized as revenue over time as delivery or performance of such services occurs based on the use of an input method.

Customer options

A customer's right to choose, at its discretion, to make a payment for additional goods or services is generally considered an option. If we are not presently obligated to provide and does not have a right to consideration for delivering additional goods or services, the item is considered an option. We evaluate the customer options for material rights, such as the ability to acquire additional goods or services for free or a discount. Optional future services that reflect their standalone selling prices do not provide the customer with a material right and, therefore, are not considered performance obligations and are accounted for as separate contracts. The optional future services do not include a material right to be accounted for as performance obligations.

Milestone payments

Our collaboration agreements include development and regulatory milestones. We evaluate whether the milestones are considered probable of being reached and estimate the amount to be included in the transaction price

using the most likely amount method. We evaluate factors such as the scientific, clinical, regulatory, commercial, and other risks that must be overcome to achieve the particular milestone in making this assessment. If it is probable that a significant revenue reversal would not occur, the associated milestone value is included in the transaction price. Milestone payments that are not within our control or the licensee's control, such as regulatory approvals, are not considered probable of being achieved until those approvals are received. At the end of each reporting period, we re-evaluate the probability of achievement of such milestones and any related constraint, and if necessary, adjusts the estimate of the overall transaction price. Any such adjustments are recorded on a cumulative catch-up basis, which would affect revenue and net loss in the period of adjustment. In December 2025, we received from NK $25.0 million upon achievement of a regulatory milestone. We recognized $21.2 million in license revenue and $3.8 million in research and development service revenue.

Royalties

For sales-based royalties, including milestone payments based on the level of sales, we determine whether the sole or predominant item to which the royalties relate is a license. When the license is the sole or predominant item to which the sales-based royalty relates, we recognize revenue at the later of: (i) when the related sales occur, or (ii) when the performance obligation to which some or all of the royalty has been allocated has been satisfied (or partially satisfied). For the years ended December 31, 2025 and 2024, we have recognized $1.3 million and nil, respectively, sales-based royalty revenue resulting from our collaboration agreements.

We receive payments from our customers based on billing terms established in the contract. Up-front payments and fees are recorded as contract liabilities (e.g., deferred revenue) upon receipt or when due until we perform our obligations under the arrangement.

In the event of an early termination of a collaboration agreement, any contract liabilities would be recognized in the period in which all our obligations under the agreement have been fulfilled. For a complete discussion of accounting for revenue, see the section titled "Collaboration and License Agreements" in Note 5 to our consolidated financial statements appearing elsewhere in this report.

Interest-bearing loans and borrowings

The carrying amount of the liability for sale of future royalties is based on management's estimate of the future royalties to be paid over the life of the arrangement using an imputed rate of interest. The liability is amortized using the effective interest rate method, resulting in recognition of non-cash interest expense over the estimated term of the agreement. If there are changes to the estimate, we recognize the impact to the liability's amortization schedule and the related non-cash interest expense prospectively. Such costs are recognized under Interest expense in the Consolidated Statements of Operations and Comprehensive Loss and under Accrued expenses on the Consolidated Balance Sheets.

Acquisition of assets and businesses

Our consolidated financial statements include the operations of acquired businesses after the completion of the acquisitions. We account for acquired businesses using the acquisition method of accounting, which requires, among other things, that most assets acquired and liabilities assumed be recognized at their estimated fair values as of the acquisition date and that the fair value of acquired in-process research and development be recorded on the balance sheet. Transaction costs are expensed as incurred. Any excess of the consideration transferred over the assigned values of the net assets acquired is recorded as goodwill. When we acquire net assets that do not constitute a business, as defined in accounting principles generally accepted in the United States of America ("GAAP"), no goodwill is recognized and acquired in-process research and development is expensed in acquired in-process research and development expenses. Contingent consideration in a business combination is included as part of the acquisition cost and is recognized at fair value as of the acquisition date. Fair value is generally estimated by using a probability-weighted discounted cash flow approach. Any liability resulting from contingent consideration is remeasured to fair value at each reporting date until the contingency is resolved.

On April 9, 2024, we completed our acquisition of AnHeart. We accounted for the transaction as an asset acquisition since the lead asset represented substantially all of the fair value of the gross assets acquired.

Recent Accounting Pronouncements

For information about recent accounting pronouncements, see the sections titled "Significant Accounting Policies-Recent Accounting Pronouncements" in Note 2 to our consolidated financial statements for the year ended December 31, 2025 appearing elsewhere in this report.