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Summary of Significant Accounting Policies (Policies) | 12 Months Ended
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Dec. 31, 2024
Accounting Policies [Abstract] |
Basis of Presentation | Basis of Presentation. The accompanying consolidated financial statements include the accounts of Lexicon and its wholly-owned subsidiaries. Intercompany transactions and balances are eliminated in consolidation. Lexicon has made certain reclassification adjustments to conform prior-period amounts to the current presentation. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included.
Use of Estimates | Use of Estimates. The preparation of financial statements in conformity with U. S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the period. Actual results could differ from those estimates.
Segment Information and Significant Customers | Segment Information. Lexicon operates as one business segment, which primarily focuses on the discovery, development and commercialization of pharmaceutical products for the treatment of human disease. Substantially all of the Company’s revenues have been derived from drug discovery alliances, target validation collaborations for the development and, in some cases, analysis of the physiological effects of genes altered in knockout mice, technology licenses, subscriptions to its databases, product sales, government grants and contracts and compound library sales, as well as from commercial sales of its approved drug products. For additional segment disclosures, see Note 14.
Cash, Cash Equivalents and Short-Term Investments | Cash, Cash Equivalents and Short-Term Investments. Lexicon considers all highly-liquid investments with original maturities of three months or less to be cash equivalents. As of December 31, 2024 and 2023, short-term investments consist primarily of U.S. treasury bills as well as certain corporate and other debt securities. The Company’s short-term investments are available for use in current operations regardless of the stated maturity date of the security. These short-term investments are classified as available-for-sale securities as the Company has not historically or does not intend to sell any of its available-for-sale securities prior to their maturity dates. Short-term investments are carried at fair value, based on quoted market prices of the securities. The costs of securities sold is based on the specific identification method. Any net realized gains and losses, interest and dividends, and amortization of premium or accretion of discount are included in interest and other income. Unrealized gains and losses on such securities are reported as a separate component of stockholders’ equity. The Company reviews its portfolio of available-for-sale debt securities in an unrealized loss position. For those investments whose fair value is less than amortized cost, to the extent the Company decided to sell these investments prior to their maturity dates or was required to sell such investments, the Company would evaluate the expected cash flows to be received as compared to amortized cost and to determine if an expected credit loss has occurred.
Accounts Receivable | Accounts Receivable. Lexicon records trade accounts receivable in the normal course of business related to the sale of products or services, net of an allowance for expected credit losses.
Concentration of Credit Risk | Concentration of Credit Risk. Lexicon’s cash equivalents, investments and accounts receivable represent potential concentrations of credit risk. The Company attempts to minimize potential concentrations of risk in cash equivalents and investments by placing investments in high-quality financial instruments. The Company has not experienced any realized losses on its cash equivalents or short-term investments. The Company’s accounts receivable are unsecured and are primarily concentrated in large pharmaceutical and biotechnology companies located in the United States. The Company has not experienced any significant credit losses to date.
Property and Equipment | Property and Equipment. Property and equipment that is held and used is carried at cost and depreciated using the straight-line method over the estimated useful life of the assets, which ranges from three to 40 years. Maintenance, repairs and minor replacements are charged to expense as incurred. Leasehold improvements are amortized over the shorter of the estimated useful life or the remaining lease term. Significant renewals and betterments are capitalized.
Impairment of Long-Lived Assets | Impairment of Long-Lived Assets. Long-lived assets and right-of-use assets for leases are reviewed for impairment when events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of assets to be held and used is measured by comparison of the carrying amount of an asset to future net cash flows expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount that the carrying amount of the assets exceeds the fair value of the assets. Assets to be disposed of are reported at the lower of the carrying amount or fair value less costs to sell. There were no impairments of long-lived assets, in 2024, 2023, or 2022.
Goodwill | Goodwill. Lexicon recorded goodwill from previous acquisitions prior to 2011 of $44.5 million, representing the excess of purchase price over the fair value of the underlying net identifiable assets including the effects of deferred taxes. Goodwill is not amortized, but is tested at least annually for impairment at the reporting unit level which the Company has determined is the single operating segment disclosed in its current financial statements. An impairment exists when the carrying amount of goodwill exceeds its implied fair value. Additional impairment assessments may be performed on an interim basis if the Company encounters events or changes in circumstances that would indicate that, more likely than not, the carrying value of goodwill has been impaired. There was no impairment of goodwill in 2024, 2023 or 2022.
Leases | Leases. Lexicon determines if a contract is or contains a lease at inception or upon modification of the contract. A contract is or contains a lease if it conveys the right to control the use of an identified asset for a period in exchange for consideration. Control over the use of the identified asset means the lessee has both (a) the right to obtain substantially all of the economic benefits from the use of the asset and (b) the right to direct the use of the asset. Lexicon does not apply this accounting to those leases with terms of twelve (12) months or less. Operating lease right-of-use assets and associated lease liabilities are recorded in the balance sheet at the lease commencement date based on the present value of future lease payments to be made over the expected lease term. As the implicit rate is not determinable in its leases, Lexicon uses its incremental borrowing rate based on the information available at the commencement date to determine the present value of lease payments.
Inventory | Inventory: Inventory is comprised of INPEFA, the Company’s approved product that it is commercializing in the United States. Inventories are determined at the lower of cost or market value, with cost determined under the specific identification method.
Revenue Recognition | Revenue Recognition. The Company performs the following five steps in determining the amount of revenue to recognize as it fulfills its performance obligations under each of its agreements: (a) identify the contract(s) with a customer; (b) identify the performance obligation in the contract; (c) determine the transaction price; (d) allocate the transaction price to the performance obligation in the contract, and (e) recognize revenue when (or as) the Company satisfies the performance obligation. The Company applies this five-step model to contracts when it is probable that the Company will collect the consideration it is entitled to in exchange for the goods or services it transfers to the customer. At contract inception, the Company assesses the goods or services promised within each contract and determines those that are performance obligations, and assesses whether each promised good or service is distinct. The Company then recognizes as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied. The Company develops assumptions that require judgment to determine the stand-alone selling price for each performance obligation identified in the contract. Product Revenues Product revenues consist of U.S. sales of INPEFA, which Lexicon began shipping to its customers in the U.S. in June 2023. These customers primarily include wholesalers and limited retail pharmacies. The Company is continuing to contract with certain managed care programs or pharmacy benefit managers (“PBMs”) and has legislatively mandated contracts with the federal and state governments under which rebates are provided based on product utilization. Product revenues are recognized when control is transferred to the customer upon delivery. The Company recognizes product revenue net of applicable estimates of reserves for variable consideration using the expected value method. These estimates consider relevant factors such as current contractual and statutory requirements, industry data and forecasted customer buying and payment patterns. Net product revenue includes variable consideration only to the extent that it is probable that a significant reversal in revenue recognized will not occur in a future period. As necessary, these estimates will be adjusted in the period that such variances to actuals become known. Listed below is a further discussion of these reserves and sales return allowances: Customer Credits. The Company’s customers are offered various forms of consideration, including allowances, service fees and prompt payment discounts. The Company records allowances, deducts the full amount of prompt payment discounts, and deducts service fees from total product sales when revenues are earned and recognized. Rebates. Allowances for rebates include mandated discounts under the Medicaid Drug Rebate Program reflecting amounts owed after final dispensing of the product to participants. The Company’s estimates for rebates is based on statutory discount rates, third party market research data and data from sales to its customers. As rebates are generally invoiced and paid in arrears, the Company accrues an estimate of rebates based on the current quarter’s activity, plus any known unpaid prior quarter rebates. Chargebacks. Chargebacks are discounts that occur when contracted healthcare providers purchase directly from a wholesaler. Generally, the contracted healthcare providers purchase INPEFA at a discounted price. The wholesaler, in turn, charges back to Lexicon the difference between the price paid by the wholesaler and the discounted price that the wholesaler’s customer pays for that product. Medicare Part D Coverage Gap. The Medicare Part D prescription drug benefit mandates manufacturers to fund a portion of the Medicare Part D insurance coverage gap for prescription drugs sold to eligible patients. The Company’s estimates for the expected Medicare Part D coverage gap are based on sales data received from a third party and projections based on historical data. As funding of the coverage gap is generally invoiced and paid in arrears, the Company accrues an estimate based on the current quarter’s activity, plus any known unpaid prior quarter estimates. Co-payment assistance. Patients with commercial insurance who meet certain eligibility requirements are eligible to receive co-payment assistance. The Company accrues a liability for co-payment assistance based on actual program participation and estimates of program redemption using data provided by third-party administrators. Sales returns. The Company records allowances for product returns, if appropriate, as a reduction of revenue at the time product sales are recorded based on an assessment of market exclusivity of the product, the patient population and the customers’ return rights.
Collaboration and Licensing Agreements | Collaboration and Licensing Agreements Revenues under collaborative agreements may include both license revenue and contract research revenue. At contract inception, the Company evaluates whether development milestones are considered probable of being reached and estimates the amount to be included in the transaction price using the most likely amount method. If it is probable that a significant revenue reversal will not occur, the associated development milestone value is included in the transaction price. Development milestones that are not within the control of the Company or the licensee, including those requiring regulatory approval, are not considered probable of being achieved until those approvals are received. The transaction price is allocated to each performance obligation on a relative stand-alone selling price basis, for which the Company recognizes revenue when (or as) the performance obligation is satisfied. At the end of each reporting period, the Company re-evaluates the probability of achievement of the development milestones and any related constraint, and if necessary, adjusts its estimates of the overall transaction price. Any such adjustments are recorded on a cumulative catch-up basis, which would affect such revenues in the period of adjustment. For agreements in which a license to the Company’s intellectual property is determined to be distinct from other performance obligations identified in the agreement, the Company recognizes revenue when the license is transferred to the licensee and the licensee is able to use and benefit from the license. For agreements that include sales-based royalties, including milestones based on a level of sales, the license is deemed to be the predominant item to which the royalties relate and the Company recognizes revenue at the later of (a) when the related sales occur, or (b) when the performance obligation to which some or all of the royalty has been allocated has been satisfied (or partially satisfied). The Company may receive payments from its licensees based on billing schedules established in each contract. Upfront payments and fees are recorded as deferred revenue upon receipt or when due, and may require deferral of revenue recognition to a future period until the Company performs its obligations under these agreements. Amounts are recorded as accounts receivable when revenue has been recognized and the Company’s right to consideration is unconditional.
Cost of Sales | Cost of Sales. Cost of sales consists of third-party manufacturing costs, product shipping and handling costs and freight associated with sales of INPEFA. The Company began capitalizing inventory manufactured subsequent to regulatory approval of INPEFA in June 2023, as the related costs were expected to be recovered through the commercialization of the product. Costs related to manufacturing inventory prior to the approval of INPEFA have been recorded as research and development expense in the consolidated statements of comprehensive loss.
Research and Development Expenses | Research and Development Expenses. Research and development expenses may consist of costs incurred for company-sponsored as well as collaborative research and development activities. These costs include direct and research-related overhead expenses and are expensed as incurred. Technology license fees for technologies that are utilized in research and development and have no alternative future use are expensed when incurred. Substantial portions of the Company’s preclinical and clinical trials are performed by third-party laboratories, medical centers, contract research organizations and other vendors. For preclinical studies, the Company accrues expenses based upon estimated percentage of work completed and the contract milestones remaining. For clinical studies, expenses are accrued based upon the number of patients enrolled and the completion of milestones. The Company monitors patient enrollment, the progress of clinical studies and related activities to the extent possible through internal reviews of data reported to the Company by the vendors and clinical site visits. The Company’s estimates depend on the timeliness and accuracy of the data provided by the vendors regarding the status of each program and total program spending. The Company periodically evaluates the estimates to determine if adjustments are necessary or appropriate based on information it receives.
Stock-Based Compensation | Stock-Based Compensation. Compensation expense related to stock options and restricted stock units (“RSUs”) is determined based on the fair value of the award on the date of the grant and is recognized on a straight-line basis over the vesting period in which an employee is required to provide service. Forfeitures of share-based payment awards are recognized in the period in which they occur. Compensation expense is recorded in research and development expense and selling, general, and administrative expense as noted on the Company’s consolidated statements of comprehensive loss.
Income Taxes | Income Taxes. The Company recognizes deferred tax liabilities and assets for the expected future tax consequences of events that have been recognized differently in the financial statements and tax returns. The Company uses the liability method in accounting for income taxes. Under this method, deferred tax liabilities and assets are determined based on the difference between the financial statement carrying amounts and tax bases of liabilities and assets using enacted tax rates and laws in effect in the years in which the differences are expected to reverse. Deferred tax assets are evaluated for realization based on a more-likely-than-not criteria in determining if a valuation allowance should be provided. In evaluating the valuation allowances, the Company considers cumulative book losses, the reversal of existing temporary differences, tax planning strategies and estimates of future taxable income, the latter two of which involve the exercise of significant judgment.
Net Loss per Common Share | Net Loss per Common Share. Net loss per common share is computed using the weighted average number of shares of common stock outstanding. Shares associated with warrants, stock options and restricted stock units that could potentially dilute earnings per share in the future are not included in the computation of diluted earnings per share when the company has a net loss because they are antidilutive.
Recent Accounting Pronouncements Issued But Not Yet Adopted | Recent Accounting Pronouncements Issued But Not Yet Adopted. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740) – Improvements to Income Tax Disclosures, which is effective prospectively for annual periods beginning after December 15, 2024. Early adoption is permitted. The Company does not expect this accounting pronouncement to have a material impact on the financial statements.

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