The accompanying Consolidated Financial Statements have been prepared in conformity with accounting principles generally accepted in the U.S. (“GAAP”) and include the accounts of our wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.

The Company’s Consolidated Financial Statements have been prepared on a going concern basis, which contemplates the realization of assets and satisfaction of liabilities in the ordinary course of business. In accordance with FASB ASU No. 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (Subtopic 205-40), the Company has concluded there are conditions and events, considered in the aggregate, that raise substantial doubt about the Company’s ability to continue as a going concern within one year after the date that the Consolidated Financial Statements are issued. The Consolidated Financial Statements do not include any adjustments that might result from the outcome of this uncertainty.

The preparation of the Company’s Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts and disclosure of revenue, expenses and certain assets and liabilities at the balance sheet date. Such estimates include the performance obligations under the Company’s collaboration agreements; the collectability of receivables; and the value of certain liabilities. Actual results may differ from such estimates.

The Company classified $0.5 million of its cash as restricted cash, long-term as of both December 31, 2024 and 2023. These amounts represent the security deposit associated with the Company's Lexington, Massachusetts headquarters.

The Company’s short-term investments were marketable debt securities with original maturities of greater than three months from the date of purchase, but less than twelve months from the balance sheet date. Marketable securities consisted of commercial paper, corporate bonds and notes, and/or government obligations. All of the Company’s investments were designated available-for-sale and are stated at fair value. Unrealized gains and losses on investments are included in accumulated other comprehensive income (loss) as a separate component of stockholders’ equity. Realized gains and losses, dividends and interest income are included in other income in the period during which the securities are sold. Any premium or discount arising at purchase is amortized and/or accreted to interest income. As of December 31, 2024, all of the Company's investments have matured.

Financial instruments which potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents and accounts receivable. The Company maintains deposits in federally insured financial institutions in excess of federally insured limits. 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 operations are located entirely within the U.S. The Company's focus is primarily on the development of emavusertib, a small molecule IRK4 inhibitor. The Company's customer, Genentech, accounted for 100% and 99% of the total gross revenues for the years ended December 31, 2024 and 2023, respectively.

The Company relies on third parties to manufacture and supply emavusertib. In addition, there are a small number of suppliers for certain raw materials that the Company uses to manufacture emavusertib.

Long-lived assets other than goodwill consist of property and equipment. The Company applies the guidance in FASB Codification Topic 360-10-05, Impairment or Disposal of Long-Lived Assets. If it were determined that the carrying value of the Company’s other long-lived assets might not be recoverable based upon the existence of one or more indicators of impairment, the Company would measure for impairment. Recoverability is measured by a comparison of the carrying amount of an asset to future net cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized by the amount by which the carrying amount of the asset exceeds the fair value of the asset. The Company did not recognize any material impairment charges for the years ended December 31, 2024 or December 31, 2023.

Purchased equipment is recorded at cost. The Company does not currently hold any leased equipment. Depreciation and amortization are provided on the straight-line method over the estimated useful lives of the related assets or the remaining terms of the leases, whichever is shorter, as follows:


			Useful Life
Laboratory equipment, computers and software			3-5 years
Leasehold improvements			Lesser of lease or asset life
Office furniture and equipment			5 years

The Company determines if an arrangement is a lease at contract inception. The Company made an accounting policy election to not recognize leases with an initial term of 12 months or less within its Consolidated Balance Sheets and to recognize those lease payments on a straight-line basis in its Consolidated Statements of Operations and Comprehensive Loss over the lease term. Operating lease assets represent the Company's right to use an underlying asset for the lease term and operating lease liabilities represent its obligation to make lease payments arising from the lease. Operating lease assets and liabilities are recognized at the commencement date of the lease based upon the present value of lease payments over the lease term. When determining the lease term, the Company includes options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option.

As the Company's lease does not provide an implicit interest rate, the Company uses its incremental borrowing rate, which is based on rates that would be incurred to borrow on a collateralized basis over a term equal to the lease payments in a similar economic environment, in determining the present value of lease payments.

The lease payment used to determine the operating lease asset may include lease incentives, stated rent increases and was recognized as an operating lease right-of-use asset in the Consolidated Balance Sheets. The Company's lease agreements may include both lease and non-lease components, which may be accounted for as a single lease component when the payments are fixed. Variable payments included in the lease agreement are expensed as incurred.

The Company's operating lease is reflected in operating lease right-of-use asset and operating lease liability in the Consolidated Balance Sheets. Lease expense for lease payments is recognized on a straight-line basis over the lease term.

The Company had goodwill of $9.0 million as of both December 31, 2024 and 2023. The Company applies the guidance in the FASB Codification Topic 350, Intangibles—Goodwill and Other. The Company performs its annual goodwill assessment as of December 31. As part of its annual goodwill assessment, the Company determined (1) it operates as a single reporting unit and (2) the fair value of the Company exceeded the carrying value of its net assets. Accordingly, no goodwill impairment was recognized for each of the years ended December 31, 2024 and 2023, and there have been no cumulative impairments.

The Company recognizes royalty revenues related to Genentech’s and Roche’s sales of Erivedge. For arrangements that include sales-based royalties, including milestone payments based on the level of sales, and where the license is deemed to be the predominant item to which the royalties relate, the Company recognizes 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). The Company expects to continue recognizing royalty revenue from Genentech’s sales of Erivedge in the U.S. and Roche's sales of Erivedge outside of the U.S. (see Note 10, Research and Development Collaborations). However, a significant portion of Erivedge royalties will be paid to the Purchasers pursuant to the Oberland Purchase Agreement (see Note 8, Liability Related to the Sale of Future Royalties).

The Company expenses research and development costs as they are incurred. Research and development expense primarily consists of costs incurred to discover, research and develop emavusertib. These expenses primarily include: (1) salaries and related expenses for personnel, including stock-based compensation expense; (2) external research and development costs, including amounts paid to clinical centers, clinical research organizations and consultants, costs of contract manufacturing, and the cost of companion drugs; (3) regulatory costs; (4) facility costs; and (5) certain payments that we make under the Company's collaboration agreements. Advance payments for goods or services to be received in the future for use in research and development activities are recorded as prepaid expenses. The prepaid amounts are expensed as the related goods are delivered or the services are performed.

The Company has entered into various research and development contracts with clinical research organizations, clinical manufacturing organizations, and other service providers both inside and outside of the United States. These agreements are generally cancellable. The Company recognizes external research and development costs based on an evaluation of the level of activity and services performed, using information provided to the Company by its service providers. This process involves reviewing vendor invoices, open contracts and purchase orders, communicating with applicable personnel to identify services that have been performed on the Company’s behalf, and estimating the level of service performed and the associated cost incurred for the service when the Company has not yet been invoiced or otherwise notified of actual costs.

Basic and diluted net losses per share were determined by dividing net loss by the weighted average number of common shares outstanding during the period. Diluted net loss per common share is the same as basic net loss per common share for all periods presented, as the effect of the potential common stock equivalents is antidilutive due to the Company’s net loss position for all periods presented. Antidilutive securities consist of stock options outstanding of 1,160,251 and 840,880 as of December 31, 2024 and 2023, respectively, unvested restricted stock awards of 40,137 and 110,500 as of December 31, 2024 and 2023, respectively and warrants of 2,398,414 as of December 31, 2024.

The Company measures compensation cost for stock-based compensation at fair value and recognizes the expense as compensation expense over the period that the recipient is required to provide service in exchange for the award, which generally is the vesting period. The fair value for restricted stock awards is based on the closing share price of the Company's common stock on the date of grant. The Company uses the Black-Scholes option pricing model to measure the fair value of stock options. This model requires estimates related to the award’s expected life and future stock price volatility of the underlying equity security. Actual compensation expense recognized over the vesting period will only be for those shares that vest.

The expected volatility is based on the annualized daily historical volatility of the Company’s stock price for a time period consistent with the expected term of each grant. Management believes that the historical volatility of the Company’s stock price best represents the future volatility of the stock price. The risk-free rate is based on the U.S. Treasury yield in effect at the time of grant for the expected term of the respective grant. The expected term is based on historical data. The Company has not historically paid cash dividends, and does not expect to pay cash dividends in the foreseeable future.

Comprehensive loss is comprised of net loss and other comprehensive income (loss). Other comprehensive income (loss) includes unrealized gains and losses arising during the period on available-for-sale securities.

The Company has determined that it operates in a single reportable segment, which is the research and development of innovative drug candidates for the treatment of human cancer. See Note 14, Segment Information.

In March 2019 the Company entered into the Oberland Purchase Agreement. Pursuant to the terms of the Oberland Purchase Agreement the Company sold to the Purchasers a portion of its rights to receive royalties from Genentech on potential net sales of Erivedge. As a result of the obligation to pay future royalties to the Purchasers, the Company recorded the proceeds as a liability in its Consolidated Balance Sheet that is accounted for using the interest method over the expected life of the Oberland Purchase Agreement. As a result, the Company imputes interest on the transaction and records imputed interest expense at the estimated interest rate. The Company's estimate of the interest rate under the Oberland Purchase Agreement is based on the amount of royalty payments expected to be received by the Purchasers over the life of the arrangement.

The Company accounts for warrants to purchase shares of its common stock in accordance with the guidance in FASB Codification Topic 480, Distinguishing Liabilities from Equity (“ASC 480”) and FASB Codification Topic 815, Derivatives and Hedging (“ASC 815”). The Company classifies warrants issued for the purchase of shares of its common stock as either equity or liability instruments based on an assessment of the specific terms and conditions of the contract. The assessment considers whether the warrants are freestanding financial instruments or embedded in a host instrument, and whether the warrants meet the definition of a liability pursuant to ASC 480, and whether the warrants meet all of the requirements for equity classification under ASC 815. For warrants that meet all of the criteria for equity classification, the warrants are recorded as a component of equity without subsequent remeasurement at the time of issuance.

In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which provides updates to qualitative and quantitative reportable segment disclosure requirements, including enhanced disclosures about significant segment expenses and increased interim disclosure requirements, among others. ASU No. 2023-07 is effective for fiscal years beginning after December 15, 2023, and interim periods in fiscal years beginning after December 15, 2024. The Company adopted this ASU for the fiscal year beginning January 1, 2024. See Note 14, Segment Information.

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires disclosure of disaggregated income taxes paid, prescribes standard categories for the components of the effective tax rate reconciliation, and modifies other income tax-related disclosures. ASU No. 2023-09 is effective for fiscal years beginning after December 15, 2024 and allows for adoption on a prospective basis, with a retrospective option. Early adoption is permitted. The Company is currently evaluating the impact of the ASU on the income tax disclosures within the Consolidated Financial Statements.

In November 2024, the FASB issued ASU-2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Topic 220): Disaggregation of Income Statement Expenses. The ASU requires additional disclosures of the nature of the expenses included in the income statement, including disaggregation of the expense captions presented on the Consolidated Statements of Operations into specific categories. ASU No. 2024-03 is effective for fiscal years beginning after December 15, 2026, and for interim periods beginning after December 15, 2027 and allows for adoption on a prospective basis, with a retrospective option. Early adoption is permitted. The Company is currently evaluating the impact of the ASU on the Consolidated Financial Statement disclosures.