Use of estimates—The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the condensed consolidated financial statements, disclosure of contingent liabilities, and the reported amounts of revenue and expense. These judgments, estimates, and assumptions are used for, but not limited to, revenue recognition, the estimates of the fair values of convertible preferred stock, convertible notes and common stock, stock-based compensation, inventory, expected credit losses, accrued liabilities, the fair value of warrant liability, discount rate associated with the leases, the estimates of the warranty expenses, and the valuation of allowances associated with deferred tax assets. The Company bases its estimates on various factors and information, which may include, but are not limited to, history and prior experience, the Company’s forecasts and future plans, current economic conditions and information from third-party professionals that management believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities and recorded amounts of expenses that are not readily apparent from other sources. To the extent there are material differences between the Company’s estimates and the actual results, the Company’s future consolidated results of operations may be affected.

Segments—The Company’s chief operating decision maker (“CODM”) is its Chief Executive Officer, who manages the business globally within one operating and reportable segment. The segment focuses on developing a highly sensitive proteomic liquid biopsy platform and sells instruments, consumables, and services based on this platform to enable early detection of diseases. The CODM reviews and evaluates operating performance based on consolidated net loss, which is reported on the condensed consolidated statements of operations. The CODM manages operations on a consolidated basis for the purposes of allocating resources, making operating decisions, and evaluating financial performance. Assets, measures of profitability and significant segment expenses reviewed by the CODM are consistent with the presentation and disclosure in these condensed consolidated financial statements.

Cash and cash equivalents—The Company considers all highly liquid investments with an original maturity from the date of purchase of three months or less to be cash equivalents. Cash and cash equivalents consist of cash deposited with banks, money market funds and US treasury securities.

Restricted cash—Restricted cash consists of cash and cash equivalents held in a bank deposit account to secure a standby letter of credit from JPMorgan Chase Bank in lieu of security deposit for the lease of the Company’s current facility.

Accounts receivable—Accounts receivable consists of amounts due from customers for the sales of products and services. The Company regularly evaluates the collectability of its trade receivable balances based on a combination of factors. If it is determined that the customer will be unable to meet its financial obligation to us, such as in the case of a bankruptcy filing, deterioration in the customer’s operating results, financial position, or other material events impacting its business, a specific allowance for credit losses is recorded to reduce the related receivable to the amount expected to be recovered, given all information presently available. Except for this allowance, the Company believes its receivables are collectible. Delinquency of accounts receivable is determined based on contractual terms, customer payment history and current creditworthiness.

The Company determined that no allowance on the outstanding accounts receivable balance was required to cover unexpected credit losses as of March 31, 2026 and December 31, 2025. During the three months ended March 31, 2026 and 2025, the Company did not write off any accounts receivable considered to be uncollectible.

During the three months ended March 31, 2026, and 2025, no customer represented 10% or more of total revenue.

As of March 31, 2026, no customer represented 10% or more of net accounts receivable. As of December 31, 2025, one customer represented 10% or more of net accounts receivable.

Software development costs—Costs to develop software for use in research and development activities with no alternative future use are charged to expense when incurred. The Company capitalizes certain costs incurred during the application development phase for other internal-use software.

Software embedded in the Company's instruments is considered software that is sold or otherwise marketed. Accordingly, the Company expenses development costs as incurred prior to establishing technological feasibility of the software. To date, no material costs have been incurred subsequent to establishment of technological feasibility.

Deferred offering costs—The Company capitalizes certain legal, accounting, and other third-party fees that are directly related to the Company’s equity offering until such offering is consummated. As of March 31, 2026 and December 31, 2025, a total of $4.9 million and $1.3 million in deferred offering costs related to the Company’s IPO were classified as prepaid expenses and other current assets in the condensed balance sheet. The Company closed its IPO on April 20, 2026, accordingly these costs will be recorded in stockholders’ equity as a reduction of the proceeds from the offering subsequent to March 31, 2026.

Revenue recognition—The Company recognizes revenue in accordance with ASC 606, Revenue from Contracts with Customers. Revenue is recognized upon transfer of control of promised products or services to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products or services.

As part of its assessment of each contract, the Company evaluates certain factors including the customer’s ability to pay, or credit risk. For each contract, the Company considers the promises to transfer products, each of which is distinct, to be the identified performance obligations. In determining the transaction price, the price stated on the purchase order is typically fixed and represents the net consideration which the Company expects to be entitled to, and therefore there is no variable consideration. Revenue is recorded net of distributor commissions and sales taxes collected on behalf of governmental authorities. The Company allocates the transaction price to each distinct product based on its relative standalone selling price. The Company determines standalone selling price using internal costs,

profit objectives, and historical pricing practices with consideration of current market conditions. If the product or service has no history of sales or if the sales volume is not sufficient, the Company relies upon prices set by management, adjusted for applicable discounts. The Company's revenue arrangements generally do not provide a right of return. The payment term is usually net 30 days or other customer negotiated terms.

The Company sells its products to customers through multiple channels, including direct sales and through distributors. In certain instances, the Company may drop-ship products directly to end customers on behalf of the distributor. The Company assesses each distributor arrangement to determine whether the distributor is acting as a principal (controlling the product before transfer) or as an agent (arranging for the end user to obtain goods). Revenue is recognized at the point in time when control of the product transfers to the customer, which is typically upon shipment or delivery, based on the contractual delivery terms.

The Company generates revenue from sales of its analytical research equipment along with related reagents. The Company also recognizes service revenue under its Technology Access Program (“TAP”) and maintenance contracts. The Company recognizes revenue from these revenue streams as follows:

Advertising costs—Advertising costs consist primarily of expenses for advertising, promotional materials, tradeshows, brochures and websites and are expensed as incurred. Advertising costs totaled $0.8 million and $0.3 million for the three months ended March 31, 2026 and 2025, respectively.

Functional currency and foreign currency translation—The Company uses the U.S. dollar as its reporting currency. Transactions in the subsidiary are recorded in the functional currency of the respective subsidiary and transactions denominated in currencies other than the functional currency give rise to foreign exchange remeasurement (monetary assets and liabilities) and related gains and losses that are classified in other (expense) income, net in the condensed consolidated statements of operations. The Company has not entered into any foreign currency derivative instruments to hedge its foreign currency positions.

For the subsidiary whose functional currency is not the U.S. dollar, the Company uses the average exchange rate for the period and the exchange rate at the balance sheet date to translate the operating results and financial position to the U.S. dollar, respectively, which is the Company’s reporting currency. Translation differences are recorded in accumulated other comprehensive loss, a component of stockholders’ deficit.

Recent accounting pronouncements not yet adopted

In November 2024, the Financial Accounting Standards Board (“FASB”) issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. This update requires that at each interim and annual reporting period public entities disclose (1) the amounts of purchases of inventory, employee compensation, depreciation, amortization, and depletion) in commonly presented expense captions; (2) certain amounts that are already required to be disclosed under current GAAP in the same disclosure as the other disaggregation requirements; (3) a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively; and (4) the total amount of selling expenses and, in annual reporting periods, the definition of selling expenses. This update is effective for annual reporting periods beginning after December 15, 2026, and interim periods within annual reporting periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the impact on its financial statements of adopting this guidance.

In September 2025, the FASB issued ASU 2025-06, Intangibles-Goodwill and Other-internal-use software (Subtopic 350-40): Targeted Improvements to the Accounting for internal-use software. The standard removes references to development stages and requires capitalization of software costs when management has authorized and committed to funding the software project, it is probable that the project will be completed, and the software will be used to perform the function intended. The ASU is effective for fiscal years beginning after December 15, 2027, and interim periods within those annual reporting periods, with early adoption permitted. The Company is currently evaluating the impact on its financial statements of adopting this guidance.