liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. We base our estimates, in part, on historical experience that management believes to be reasonable under the circumstances. Actual results could differ from those estimates. Estimates and assumptions are periodically reviewed and the effects of revisions are reflected in the condensed consolidated financial statements in the period they are determined to be necessary.

Significant areas that require estimates include revenue recognition, intangible assets, business acquisition liabilities, allowance for expected credit losses, stock-based compensation, reserves for excess and obsolete inventory, fair value measurements, useful lives of assets, the outcome of litigation, recoverability of intangible assets and income taxes. We are subject to risks and uncertainties due to changes in the healthcare environment, regulatory oversight, competition, and legislation that may cause actual results to differ from estimated results.

In accordance with Accounting Standards Codification (“ASC”) 606, Revenue from Contracts with Customers, the Company recognizes revenue upon the transfer of goods or services to a customer at an amount that reflects the expected consideration to be received in exchange for those goods or services. The principles in ASC 606 are applied using the following five steps: (i) identify the contract with a customer; (ii) identify the performance obligation(s) in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligation(s) in the contract; and (v) recognize revenue when (or as) the Company satisfies its performance obligation(s). Revenue is recognized upon transfer of control of promised products or services to customers in an amount that reflects the consideration we expect to receive in exchange for those products or services. Sales and other taxes we collect concurrent with revenue-producing activities are excluded from revenue. For purposes of disclosure, we disaggregate our revenue into two categories, Musculoskeletal Solutions and Enabling Technologies. Our Musculoskeletal Solutions products consist primarily of the implantable devices, disposables, unique instruments, and neuromonitoring services, used in an expansive range of spine, orthopedic trauma, hip, knee and extremity procedures. The majority of our Musculoskeletal Solutions contracts have a single performance obligation and revenue is recognized at a point in time. For our IONM services, revenue is recognized in the period the service is performed, which can be either at a point in time or over time, depending on how the performance obligation is defined for the amount of consideration expected to be received. Our policy is to classify shipping and handling costs billed to customers as sales and the related expenses as cost of sales.

Our Enabling Technologies products are advanced hardware and software systems, and related technologies, that are designed to enhance a surgeon’s capabilities and streamline surgical procedures by making them less invasive, more accurate, and more reproducible to improve patient care. The majority of our Enabling Technologies product contracts contain multiple performance obligations, including maintenance and support, and revenue is recognized as we fulfill each performance obligation, generally at the point in time in which the obligation is fulfilled. When a contract has multiple performance obligations, we allocate the contract’s transaction price to each performance obligation using our best estimate of the standalone selling price of each distinct good or service in the contract.

Revenue associated with products holding rights of return or trade-in are recognized when the Company concludes there is not a risk of significant revenue reversal in future periods for the expected consideration in the transaction. Our policy is to classify shipping and handling costs billed to customers as sales and the related expenses as cost of sales.

Contract Balances

Timing of revenue recognition may differ from the timing of invoicing to customers. We record a receivable when revenue is recognized prior to invoicing, or deferred revenue when revenue is recognized subsequent to invoicing.

Deferred revenue is comprised mainly of unearned revenue related to the sales of certain Enabling Technologies products, which includes maintenance and support services. Maintenance and support services are generally invoiced annually, at the beginning of each contract period, and revenue is recognized ratably over the maintenance period.

The changes to contract liabilities related to deferred revenue are as follows:

The Company considers all short-term, highly liquid investments with original maturities of 90 days or less at acquisition date to be cash equivalents. Cash equivalents, which consist of money market accounts, commercial paper, government securities, and corporate debt securities are stated at fair value.

Our marketable securities include municipal bonds, corporate debt securities, commercial paper, asset-backed securities, securities of government, federal agency, and other sovereign obligations, all of which have been liquidated as of March 31, 2025. Short-term and long-term marketable securities are recorded at fair value on our condensed consolidated balance sheets. Any change in fair value of our available-for-sale securities, that does not result in recognition or reversal of an allowance for credit loss or write-down, is recorded, net of taxes, as a component of accumulated other comprehensive income or loss on our condensed consolidated balance sheets. Premiums and discounts are recognized over the life of the related security as an adjustment to yield using the straight-line method. Realized gains or losses from the sale of marketable securities are determined on a specific identification basis. Realized gains and losses, interest income and the amortization/accretion of premiums/discounts are included as a component of other income/(expense), net, on our condensed consolidated statements of operations and comprehensive income. Interest receivable is recorded as a component of prepaid expenses and other current assets on our condensed consolidated balance sheets.

We invest in securities that meet or exceed standards as defined in our investment policy. Our policy also limits the amount of credit exposure to any one issue, issuer or type of security. We review declines in the fair value of our securities to determine whether they are resulting from expected credit losses or other factors. If the assessment indicates a credit loss exists, we recognize any measured impairment as an allowance for credit loss in our condensed consolidated statements of operations. Any other impairments not recorded through allowance for credit losses is recognized in our other comprehensive income.

Fair value is defined as the price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or the liability in an orderly transaction between market participants on the measurement date. Additionally, a fair value hierarchy was established that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets and liabilities and the lowest priority to unobservable inputs. The level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.

Our assets and liabilities measured at fair value on a recurring basis are classified and disclosed in one of the following three categories:

Level 1—quoted prices (unadjusted) in active markets for identical assets and liabilities;

Level 2—observable inputs other than quoted prices in active markets for identical assets and liabilities; and

Level 3—unobservable inputs in which there is little or no market data available, which require the reporting entity to use significant unobservable inputs or valuation techniques.

Contingent consideration represents contingent milestone, performance and revenue-sharing payment obligations related to acquisitions and is measured at fair value, based on significant inputs that are not observable in the market, which represents a Level 3 measurement within the fair value hierarchy. The valuation of contingent consideration uses assumptions we believe would be made by a market participant. We assess these assumptions on an ongoing basis as additional data impacting the assumptions is obtained. The fair value of contingent consideration is recorded in business acquisition liabilities on our condensed consolidated balance sheets, and changes in the fair value of contingent consideration are recognized in acquisition-related costs in the condensed consolidated statements of operations and comprehensive income. The fair value of contingent restricted stock unit (“RSU”) grants are recorded as additional paid-in capital in the consolidated balance sheet on the day of the grant due to the remote likelihood of forfeiture.

The purchase price of business acquisitions is primarily allocated to the tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair values on the acquisition date, with the excess recorded as goodwill. We utilize Level 3 inputs in the determination of the initial fair value.

Inventories are stated at the lower of cost or net realizable value. Cost is determined on a first-in, first-out basis. The majority of our inventory is finished goods and we utilize both in-house manufacturing and third-party suppliers to produce our products. We periodically evaluate the carrying value of our inventories in relation to estimated forecasts of product demand, which takes into

consideration the life cycle of product releases. When quantities on hand exceed estimated sales forecasts, we record a write-down for such excess inventories. Once inventory has been written down, it creates a new cost basis for inventory that is not subsequently written up.

Goodwill represents the excess of purchase price over the fair values of the identifiable assets acquired less the liabilities assumed in the acquisition of a business. Goodwill is tested for impairment at least annually or whenever events or circumstances indicate that a carrying amount may not be recoverable. Goodwill is tested for impairment at the reporting unit level by comparing the reporting unit’s carrying amount to the estimated fair value of the reporting unit. Fair values are estimated using an income and discounted cash flow approach. We perform our annual impairment test of goodwill in the fourth quarter of each year. We consider qualitative indicators of the fair value of a reporting unit when it is unlikely that a reporting unit has impaired goodwill.

Intangible assets consist of purchased developed technology, customer relationships, in-process research and development (“IPR&D”), supplier network, patents, re-acquired rights, and non-compete agreements. Intangible assets with finite useful lives are amortized over the period of estimated benefit using the straight-line method and estimated useful lives ranging from 1 to 21 years. Intangible assets with finite useful lives are tested whenever events or circumstances indicate that a carrying amount of an asset (asset group) may not be recoverable. If an impairment is indicated, we measure the amount of the impairment loss as the amount by which the carrying amount exceeds the fair value of the asset. Fair value is generally determined using a discounted future cash flow analysis.

IPR&D has an indefinite life and is not amortized until completion of the project at which time the IPR&D becomes an amortizable asset. Intangible assets with indefinite useful lives are tested for impairment annually or whenever events or circumstances indicate that a carrying amount of an asset (asset group) may not be recoverable. If the related project is not completed in a timely manner, we may have an impairment related to the IPR&D, calculated as the excess of the asset’s carrying value over its fair value.

During the three months ended March 31, 2025, there were no impairments in goodwill, finite-lived intangible assets, or IPR&D.

The cost of employee and non-employee director awards is measured at the grant date fair value of the award and is recognized as expense over the requisite service period, which is generally the vesting period of the equity award. Expense for performance-based restricted stock units is recognized when the performance condition is deemed to be probable. Compensation expense for awards includes the impact of forfeiture in the period when they occur.

We estimate the fair value of stock options utilizing the Black-Scholes option-pricing model. Inputs to the Black-Scholes model include our stock price, expected volatility, expected term, risk-free interest rate and expected dividends. Expected volatility is based on the historical volatility of the Company’s common stock over the most recent period commensurate with the estimated expected term of the Company’s stock options offering period which is derived from historical experience. The risk-free interest rate assumption is based on observed interest rates of U.S. Treasury securities appropriate for the expected terms of the stock options. The dividend yield assumption is based on the history and expectation of no dividend payouts. The respective fair values of restricted stock units and performance restricted stock units are estimated on the day of grant based on the closing price of the Company’s common stock.

We assumed equity-classified awards for certain NuVasive restricted stock units (“RSUs”), and performance restricted stock units (“PRSUs”), as part of the NuVasive Merger (as defined below). These RSUs and PRSUs are measured at the grant date based on the estimated fair value of the award. The fair value of equity instruments that are expected to vest is recognized and amortized over the requisite service period. The Company has granted awards with up to five-year graded or cliff vesting terms (in each case, with service through the date of vesting being required). No exercise price or other monetary payment is required for receipt of the shares issued in settlement of the respective award; instead, consideration is furnished in the form of the participant’s service to the Company.

The fair value of RSUs including PRSUs with pre-defined performance criteria is based on the stock price on the date of grant whereas the expense for PRSUs with pre-defined performance criteria is adjusted with the probability of achievement of such performance criteria at each period end.

The Company recognizes all derivative instruments as assets or liabilities in its unaudited condensed Consolidated Balance Sheets and measures these instruments at fair value by revaluing these assets and liabilities at the end of each reporting period. Gains and losses are recorded as a component of other expense, net in the unaudited condensed consolidated statements of operations and comprehensive income. The effects of these derivative instruments are immaterial to the Company’s financial statements.

Other comprehensive income (loss) is defined as the change in equity during a period from transactions and other events and circumstances from non-owner sources. Other comprehensive income (loss) includes net of tax, unrealized gains or losses on the Company’s marketable debt securities and foreign currency translation adjustments.

Restructuring costs represent costs associated with the 2024 Synergy Plan. This plan was designed to optimize the organizational structure, merge synergies and leverage the strength of both commercial organizations. As a result of aligning the cost structure of the Company’s businesses and corporate functions with its financial objectives, the Company also recorded employee separation charge and one-time termination benefits.

Accounts receivable in the accompanying unaudited condensed consolidated balance sheets are presented net of allowances for expected credit losses. We maintain an allowance for expected credit losses resulting from the inability of its customers, including hospitals, ambulatory surgery centers, and distributors, to make required payments.

The allowance for credit losses is calculated quarterly and is estimated on a region-by-region basis considering a number of factors including age of account balances, collection history, historical account write-offs, third-party credit reports, identified trends, current economic conditions, and supportable forecasted economic expectations. The allowance is adjusted on a specific identification basis for certain accounts as well as pooling of accounts with similar characteristics. An increase in the provision for credit losses may be required when the financial condition of our customers or their collection experience deteriorates. Our exposure to credit losses may also increase if our customers are adversely affected by changes in healthcare laws, coverage and reimbursement, macroeconomic pressures or uncertainty associated with local or global economic recessions, disruption associated with pandemics, or other customer-specific factors.

In January 2025, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) No. 2025-01, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40). The update amends the effective date of Update 2024-03 to clarify the initial effective date for entities that do not have an annual reporting period that ends on December 31 referred to as non-calendar year end entities. All public business entities are required to adopt the guidance in annual reporting periods beginning after December 15, 2026, and interim periods within annual reporting periods beginning after December 15, 2027, and early adoption is permitted. The amendments should be applied prospectively with retrospective applications also permitted. Additionally in December 2024, the FASB issued ASU No. 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40). The update improves financial reporting by requiring that public business entities disclose additional information about certain costs and expenses categories: (a) purchases of inventory, (b) employee compensation, (c) depreciation, (d) intangible asset amortization, and (e) depreciation, depletion, and amortization in the notes to financial statements at interim and annual reporting periods. This update is effective for fiscal years beginning after December 15, 2026, and early adoption is permitted. The amendments should be applied prospectively with retrospective applications also permitted. The Company is currently evaluating the impact the standard will have on its consolidated financial statements and related disclosures.

In December 2024, the FASB issued ASU No. 2024-04 Debt—Debt with Conversion and Other Options (Subtopic 470-20). The amendments in this update clarify the requirements for determining whether certain settlements of convertible debt instruments should be accounted for as an induced conversion. To account for a settlement of a convertible debt instrument as an induced conversion, an inducement offer is required to provide the debt holder with, at a minimum, the consideration (in form and amount) issuable under the conversion privileges provided in the terms of the instrument. This update is effective for fiscal years beginning after December 15, 2025, and early adoption is permitted. The amendments should be applied prospectively with retrospective applications also permitted. The Company is currently evaluating the impact the standard will have on its consolidated financial statements and related disclosures.