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Summary of Significant Accounting Policies (Policies) | 3 Months Ended
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Mar. 31, 2024
Accounting Policies [Abstract] |
Basis of Presentation | Basis of Presentation The unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and the applicable rules and regulations of the Securities and Exchange Commission (the “SEC”) regarding interim reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. As such, the information included in this Quarterly Report on Form 10-Q should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023. The condensed consolidated financial statements include the accounts of Personalis, Inc. and its wholly owned subsidiary, Personalis (UK) Ltd. All intercompany balances and transactions have been eliminated in consolidation. Upon dissolution of Personalis (Shanghai) Ltd during the first quarter of 2024, an accumulated foreign currency translation adjustment of $0.2 million was reclassified from accumulated other comprehensive loss to net loss within Other income (expense), net. The condensed consolidated financial statements reflect all normal recurring adjustments that are necessary to present fairly the results for the interim periods presented. Interim results are not necessarily indicative of the results for the full year ending December 31, 2024.
Use of Estimates | Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. The estimates include, but are not limited to, revenue recognition, useful lives assigned to long-lived assets, discount rates for lease accounting, the valuation of stock options, the valuation of common stock warrants, provisions for income taxes, and fair value of lease right-of-use assets. Actual results could differ from these estimates, and such differences could be material to the Company’s consolidated financial position and results of operations.
At-the-Market Equity Offerings | At-the-Market Equity Offerings In December 2021, the Company entered into an At-the-Market ("ATM") Sales Agreement (the “Sales Agreement”) with BTIG, LLC (“BTIG”) under which it may offer and sell its common stock from time to time through BTIG as its sales agent. BTIG will use commercially reasonable efforts to sell the Company’s common stock from time to time, based upon instructions from the Company (including any price, time or size limits or other customary parameters or conditions the Company may impose). The Company will pay BTIG a commission of up to 3% of the gross sales proceeds of any common stock sold under the Sales Agreement. The Company is not obligated to make any sales of common stock under the Sales Agreement. During the three months ended March 31, 2024, the Company issued and sold 0.9 million shares of its common stock under the Sales Agreement at a weighted-average price of $1.67 per share and received $1.4 million in proceeds, net of commissions.
Concentration of Credit Risk and Other Risks and Uncertainties | Concentration of Credit Risk and Other Risks and Uncertainties The Company is subject to credit risk from its portfolio of cash and cash equivalents. The Company’s cash and cash equivalents are deposited with high-quality financial institutions. Deposits at these institutions may, at times, exceed federally insured limits. Management believes these financial institutions are financially sound and, accordingly, that minimal credit risk exists. The Company also invests in investment-grade debt instruments and has policy limits for the amount it can invest in any one type of security, except for securities issued or guaranteed by the U.S. government. The goals of the Company’s investment policy are as follows: preservation of principal; liquidity of investments sufficient to meet cash flow requirements; avoidance of inappropriate concentration and credit risk; competitive after-tax rate of returns; and fiduciary control of cash and investments. Under its investment policy, the Company limits the amounts invested in such securities by credit rating, maturity, investment type, and issuer. As a result, management believes that these financial instruments do not expose the Company to any significant concentrations of credit risk. The Company purchases various reagents and sequencing materials from sole source suppliers. Any extended interruption in the supply of these materials could result in the Company’s inability to secure sufficient materials to conduct business and meet customer demand. The Company routinely assesses the creditworthiness of its customers and does not require collateral. Historically, the Company has not experienced significant credit losses from accounts receivable. Multiple customers have provided more than 10% of total revenue in the periods presented, or accounted for more than 10% of accounts receivable at each respective balance sheet date, as follows:
|  | Revenue |  | Accounts Receivable
|  | Three Months Ended March 31, |  | March 31, 2024 |  | December 31, 2023
|  | 2024 |  | 2023 |  |  |  |
Natera, Inc. |  | 41% |  | 50% |  | 52% |  | 36%
Moderna, Inc. |  | 24% |  | * |  | * |  | *
VA MVP |  | * |  | 16% |  | * |  | *
Pfizer Inc. |  | * |  | * |  | 22% |  | *
* Less than 10% of revenue or accounts receivable
Significant Accounting Policies | Significant Accounting Policies As of March 31, 2024, the Company’s significant accounting policies are consistent with those discussed in Note 2 - “Summary of Significant Accounting Policies” in its consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.
Recent Accounting Pronouncements | Recent Accounting Pronouncements New Accounting Pronouncements Not Yet Adopted In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which enhances transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. The guidance will be effective for the Company's annual period ending December 31, 2025. The Company is currently evaluating the impact of the new guidance on its income tax disclosures.

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