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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 consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("US GAAP"). The Company’s consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, Sight Sciences UK, Ltd and Sight Sciences GmbH. All intercompany balances and transactions have been eliminated in consolidation.
Use of Estimates | Use of Estimates The preparation of financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent liabilities at the date of the financial statements, and the reported amounts of revenue and expense during the reporting period. The most significant estimates relate to the allowance for credit losses, inventory excess and obsolescence, the selection of useful lives of property and equipment, determination of the fair value of stock option grants, and provisions for income taxes and contingencies. Management evaluates its estimates and assumptions on an ongoing basis using historical experience, existing and known circumstances, authoritative accounting guidance, and other factors management believes to be reasonable, including an assessment of current and anticipated future macroeconomic conditions, and makes adjustments when facts and circumstances dictate. These estimates are based on information available as of the date of the financial statements. Actual results could differ from these estimates, which may result in material effects on the Company’s financial condition, results of operations and liquidity. To the extent there are differences between these estimates and actual results, the Company’s consolidated financial statements may be materially impacted.
Fair Value of Financial Instruments | Fair Value of Financial Instruments The Company’s financial instruments typically consist of cash and cash equivalents, accounts receivable, accounts payable, accrued and other current liabilities, common stock warrants, and short-term and long-term debt. The Company's cash equivalents are comprised of U.S. treasury securities that are classified as held-to-maturity and recorded at amortized cost in the financial statements, and money market accounts. The Company states accounts receivable, accounts payable, and accrued and other current liabilities at their carrying value, which approximates fair value due to the short time to the expected receipt or payment. The carrying amount of the Company’s debt approximates its fair value as the effective interest rate approximates market rates currently available to the Company.
Concentration of Credit and Supply Chain Risk | Concentration of Credit and Supply Chain Risk Financial instruments that subject the Company to concentration of credit risk consist of cash and cash equivalents and accounts receivable. The Company’s cash and cash equivalents are deposited with a high-quality financial institution. Deposits at this institution may, at times, exceed federally insured limits. Management believes that this financial institution is financially sound and, that minimal credit risk exists with respect to these deposits. The Company has not experienced any losses on its deposits of cash and cash equivalents. The Company relies on third-party contract manufacturers for the manufacture of all of its commercial products. The Company also depends on a limited number of single source suppliers to provide some of the components, accessories and materials used in the manufacture and assembly of its commercial products. Any failure on the part of the Company’s manufacturers or suppliers to timely provide products or components to the Company, or any other disruptions in the Company’s supply chain, would have a negative impact on the Company’s financial condition, results of operations and liquidity. For the years ended December 31, 2024 and 2023, there were no customers that represented 10% or more of the Company's revenue.
Cash and Cash Equivalents | Cash and Cash Equivalents The Company considers all highly liquid investments with an original maturity of 90 days or less, when purchased, to be cash and cash equivalents. As of December 31, 2024 and 2023, cash and cash equivalents includes $106.5 million and $129.1 million of U.S. treasury securities that are classified as held-to-maturity and recorded at amortized cost in the financial statements, respectively. As of December 31, 2024 and 2023, the remainder of cash and cash equivalents consists of checking and savings deposits, as well as money market funds, recorded at cost, which approximates fair value. The Company’s cash balances exceed those that are federally insured. To date, the Company has not recognized any losses as a result of uninsured balances.
Accounts Receivable and Provision for Credit Losses | Accounts Receivable and Provision for Credit Losses Accounts receivable are stated at invoiced amounts, net of estimated allowance for credit losses. The Company’s provision for credit losses methodology for accounts receivables is developed using its historical collection experience, current and anticipated future macroeconomic conditions, and a review of the current aging status and financial condition of its customers. The Company uses its reasonable judgment, based on the available information, and records a provision against amounts due to reduce the receivable to the amount that is expected to be collected. These specific provisions are reevaluated and adjusted as additional information is received that impacts the amount reserved. To date, the Company has not experienced material credit-related losses. The allowance for credit losses was $0.7 million and $1.2 million as of December 31, 2024 and 2023, respectively.
Inventory, net | Inventory, net Inventory represents raw materials and finished goods purchased from third-party suppliers and manufacturers. Inventory is valued at the lower of cost or net realizable value. Cost is determined using actual costs on a first-in, first-out basis for all inventory. Net realizable value is determined as the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. As of December 31, 2024, the Company’s inventory balance consisted of finished goods of $5.6 million and raw materials of $1.0 million. As of December 31, 2023, the Company’s inventory consisted of finished goods of $7.3 million and raw materials of $1.0 million. The Company regularly reviews inventory quantities in consideration of its actual inventory loss experiences, projected future demand for its products, and remaining shelf life to record a provision for excess and obsolete inventory when appropriate. The Company’s policy is to write down inventory that has become obsolete, inventory that has a cost basis in excess of the lower of cost or expected net realizable value, and inventory in excess of expected product demand. The estimate of excess quantities requires the Company to exercise judgment and is primarily dependent on the Company’s estimates of future demand for the particular product. As of December 31, 2024 and 2023, the Company has reserves for excess and obsolete inventory of $0.3 million and $0.5 million.
Property and Equipment, net | Property and Equipment, net Property and equipment are recorded at cost, less accumulated depreciation. Repairs and maintenance costs are expensed as incurred. Depreciation is calculated using the straight-line method over the estimated useful lives of the assets, typically two to five years. When assets are retired or otherwise disposed of, the cost and accumulated depreciation are removed from the consolidated balance sheets and any resulting gain or loss is reflected in the consolidated statements of operations and consolidated loss in the period realized. Construction-in-process assets consist primarily of tools and equipment used to manufacture the Company’s products that have not yet been placed in service. These assets are stated at cost and are not initially depreciated. Once the assets are placed into service, assets are reclassified to the appropriate asset class based on their nature, and are depreciated in accordance with their respective useful lives as indicated above.
Impairment of Long-Lived Assets | Impairment of Long-Lived Assets The Company assesses long-lived assets, including property and equipment, whenever events or changes in business circumstances indicate that the carrying amount of such assets may not be fully recoverable. If indicators of impairment exist, an impairment loss may be recognized when estimated undiscounted future cash flows expected to result from the use of the assets and their eventual disposition are less than their carrying amount. Impairment, if any, is measured as the amount by which the carrying amount of the long-lived assets exceeds their fair value. Fair value is determined through various valuation techniques, including discounted cash flow models, quoted market values, and third-party independent appraisals, as considered necessary. The Company did no t record any impairment of long-lived assets for the years ended December 31, 2024 and 2023.
Leases | Leases Contractual arrangements that meet the definition of a lease are classified as operating or finance leases and are recorded on the consolidated balance sheets as both a right-of-use asset (“ROU asset”) and lease liability, calculated by discounting fixed lease payments over the lease term at the Company’s incremental borrowing rate (“IBR”). Lease ROU assets and lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. The Company currently does not have any finance leases. As the implicit rates for the Company's operating leases are not determinable, the Company uses an IBR based on the information available at the respective lease commencement dates to determine the present value of future payments. IBR represents the interest rate that the Company would expect to incur at lease commencement to borrow an amount equal to the lease payments on a collateralized basis with similar terms and payments, in an economic environment where the leased asset is located. The Company does not recognize lease ROU assets or lease liabilities for short-term leases, if any, having initial terms of 12 months or less at lease commencement as an accounting policy election. The Company recognizes rent expense on a straight-line basis over the lease term for these short-term leases.
Common Stock Warrant | Common Stock Warrants The common stock warrants issued by the Company pursuant to the Hercules Loan Agreement (as defined in Note 5. Debt) are classified in equity, as they meet all the criteria for equity classification. The fair value of the common stock warrants was calculated using the Black-Scholes option pricing method and are recorded at fair value upon issuance in additional paid-in capital in the consolidated balance sheets. These common stock warrants are not remeasured after the issuance date. The Company’s unissued common stock warrants under the Hercules Loan Agreement are classified as liabilities in the consolidated balance sheets. These common stock warrants are remeasured at each reporting date using the BackSolve Method, with the gain or loss recorded in the Company’s consolidated statements of operations and comprehensive loss. See Note 5. Debt and Note 7. Stockholders' Equity, for additional information regarding the common stock warrants.
Revenue Recognition | Revenue Recognition The Company applies the following five steps to determine the appropriate amount of revenue to be recognized as it fulfills its obligations under each of its arrangements: • Identify the contract with a customer, • Identify the performance obligations in the contract, • Determine the transaction price, • Allocate the transaction price to performance obligations in the contract, and • Recognize revenue as the performance obligations are satisfied. Revenue recognized during the years ended December 31, 2024 and 2023 relates entirely to the sale of the Company’s products within the Surgical Glaucoma and Dry Eye segments. These sales are primarily to hospitals, medical centers, and eyecare professionals ("ECPs") throughout the United States. Sales are generally made through sales representatives and distributors. The Company’s revenue arrangements consist of a single performance obligation. Revenue is recognized at the point in time when control of the promised goods transfer to the Company’s customers. Revenue is measured at the amount of consideration expected to be received in exchange for the transfer of goods. The amount of revenue that is recognized is based on the transaction price, which represents the invoiced amounts and includes estimates of variable consideration, such as discounts, where applicable. The Company does not offer right of return, except in the case where items are defective as manufactured, and the Company does not typically provide customers with a right to a refund. The amount of variable consideration included in the transaction price may be constrained and is included only to the extent it is probable that a significant reversal in the amount of the cumulative revenue recognized under the contract will not occur in a future period. Payment terms, typically 30 days, are offered to customers and do not include a significant financing component. The Company extends credit to customers based upon their financial condition and credit history and generally require no collateral. The Company does not have any contract balances related to product sales. Shipping and handling costs incurred for the delivery of goods to customers are included in cost of goods sold. In cases where the Company bills shipping and handling costs to customers, the Company classifies those amounts in net revenue. As a practical expedient, the Company recognizes the incremental costs of obtaining contracts, such as sales commissions, as an expense when incurred since the amortization period of the asset the Company otherwise would have recognized is one year or less. Sales commissions are recorded within selling, general and administrative expenses in the consolidated statements of operations and comprehensive loss.
Cost Of Goods Sold | Cost of Goods Sold The Company purchases products, components, accessories, and materials from third-party suppliers and manufacturers. Cost of goods sold consists primarily of costs related to materials, manufacturing overhead costs, reserves for excess, and obsolete and non-sellable inventories. Cost of goods sold also includes depreciation expense for production equipment and certain direct costs, such as shipping and handling costs.
Research and Development | Research and Development The Company expenses research and development costs as incurred. Research and development expenses consist primarily of product development, clinical studies to develop and support the Company’s products, regulatory expenses, medical affairs, and other costs associated with products and technologies that are in development. Research and development expenses include employee compensation (including stock-based compensation), supplies, consulting, prototyping, testing, materials, travel expenses, depreciation, and an allocation of facility overhead expenses.
Selling, General and Administrative | Selling, General and Administrative Selling, general and administrative expenses include compensation (including stock-based compensation) and employee benefits for executive management, commercial, finance, and human resources personnel; facility costs (including rent); bad debt costs; professional service fees; and other general overhead costs, including depreciation.
Advertising Expense | Advertising Expense The Company expenses advertising costs as incurred. Advertising expenses for fiscal years 2024 and 2023 were $1.4 million and $2.1 million, respectively, included in selling, general and administrative expenses in the consolidated statements of operations and comprehensive loss.
Stock-Based Compensation | Stock-Based Compensation The Company's equity incentive plan permits the grant of stock-based awards, such as stock options and restricted stock units ("RSUs"), to employees, directors and consultants. The Company’s employee stock purchase plan (“ESPP”) allows employees to purchase stock from the Company at a discount. The Company measures and records the expense related to stock-based payment awards based on the fair value of those awards as determined on the date of grant. The Company recognizes stock-based compensation expense over the requisite service period of the individual grant, which is generally equal to the vesting period and uses the straight- line method to recognize stock-based compensation, and accounts for forfeitures as they occur. The Company selected the Black-Scholes option-pricing model as the method for determining the estimated fair value for stock options and awards granted pursuant to the ESPP. The Black-Scholes option-pricing model requires the use of highly subjective and complex assumptions, which determine the fair value of share-based awards, including the stock option’s expected term, expected volatility of the underlying stock, risk-free interest rate and expected dividend yield. The fair value of RSU awards is determined based on the number of units granted and the closing price of the Company's common stock as of the grant date.
Investment Income | Investment Income The Company’s investment income consists primarily of interest and amortization on held-to-maturity investments in treasury securities. All treasury securities are purchased with maturities of less than 90 days and recorded at amortized costs in the financial statements.
Currency Remeasurement | Currency Remeasurement Foreign currency transaction gains and losses are recorded in other income (expense), net in the Company’s consolidated statements of operations and comprehensive loss. Such amounts have not been material for all periods presented.
Income Taxes | Income Taxes The Company uses the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial reporting and the tax bases of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse. Management assesses the likelihood that the resulting deferred tax assets will be realized. A valuation allowance is provided when it is more likely than not that some portion or all off a deferred tax asset will not be realized. Due to the Company's historical operating performance and the recorded cumulative net losses in prior fiscal periods, the net deferred tax assets have been fully offset by a valuation allowance. The Company recognizes uncertain income tax positions at the largest amount that is more likely than not to be sustained upon audit by relevant taxing authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. Changes in recognition or measurement are reflected in the period in which judgment occurs. The Company's policy is to recognize interest and penalties related to the underpayment of income tax as a component of provision for income taxes.
Comprehensive Loss | Comprehensive Loss Comprehensive loss represents all changes in stockholders’ equity except those resulting from distributions to stockholders. There have been no items qualifying as other comprehensive income (loss) and, therefore, for all periods presented, there was no difference between comprehensive loss and the Company’s reported net loss.
Net Loss Per Share Attributable to Common Stockholders | Net Loss Per Share Attributable to Common Stockholders Basic and diluted net loss per share attributable to common stockholders is presented in conformity with the two-class method required for participating securities. Basic and diluted net loss per share attributable to common stockholders is computed by dividing the net loss attributable to common stockholders by the weighted-average number of common shares outstanding for the period without consideration of potentially dilutive securities. The Company’s potentially dilutive shares, which consist of outstanding common stock options and RSUs, were excluded in the computation of diluted net loss per share for the period as the result would have been anti-dilutive due to the Company's net loss position in each period.
Emerging Growth Company and Smaller Reporting Company | Emerging Growth Company and Smaller Reporting Company The Company is an “emerging growth company” as defined in the Jumpstart Our Business Startups Act of 2012, as well as a "smaller reporting company, as defined by the Securities and Exchange Commission per Rule 12b-2 of the Exchange Act. As such the Company is eligible for exemptions from various reporting requirements applicable to other public companies that are not emerging growth companies or smaller reporting companies, including reduced reporting and extended transition periods to comply with new or revised accounting standards for public business entities. The Company has elected to avail themselves of this exemption and, therefore, will not be subject to the timeline for adopting new or revised accounting standards for public business entities that are not emerging growth companies, and will follow the transition guidance applicable to private companies.
Recent Accounting Pronouncements | Recent Accounting Pronouncements Accounting Standards Adopted In November 2023, the Financial Accounting Standards Board ("FASB") issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. The ASU updates reportable segment disclosure requirements, primarily through requiring enhanced disclosures about significant segment expenses and information used to assess segment performance. The ASU is effective on a retrospective basis for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The Company adopted ASU 2023-07 with no material impact on the Company's consolidated financial statements. Accounting Standards Not Yet Adopted In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The ASU includes amendments requiring enhanced income tax disclosures, primarily related to standardization and disaggregation of rate reconciliation categories and income taxes paid by jurisdiction. The guidance is effective for fiscal years beginning after December 15, 2024, with early adoption permitted, and should be applied either prospectively or retrospectively. The Company is currently evaluating the impact of adopting this ASU on its financial statements and related disclosures. In November 2024, the FASB issued ASU No. 2024-03, Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures. The ASU requires additional disclosure in the notes the financial statements of specified information about certain expenses such as purchases of inventory, employee compensation, depreciation, intangible asset amortization, and depreciation and other expenses which are presented in the face of the income statement within continuing operations. This ASU is effective for annual periods beginning after December 15, 2026, and interim periods within annual periods beginning after December 15, 2027, with early adoption permitted. The Company is currently evaluating the impact this new standard will have on the related disclosures in the consolidated financial statements. As of December 31, 2024, there are no additional ASUs issued and not yet adopted that are expected to have a material impact on the Company's financial statements and related disclosures.

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