Summary of Significant Accounting Policies (Policies) |
6 Months Ended |
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Jun. 30, 2026 | |
| Accounting Policies [Abstract] | |
| Basis of Presentation | Basis of Presentation The accompanying condensed consolidated financial statements reflect the operations of the Company and its wholly-owned subsidiary. Intercompany balances and transactions have been eliminated in consolidation. The accompanying condensed consolidated financial statements have been prepared in conformity with generally accepted accounting principles in the United States of America, or the U.S. GAAP. Any reference in these notes to applicable guidance is meant to refer to the authoritative U.S. GAAP as found in the ASC and Accounting Standards Updates, or ASU, of the Financial Accounting Standards Board, or FASB. The accompanying condensed consolidated financial statements of Prime Medicine, Inc. are unaudited. The unaudited interim condensed consolidated financial statements have been prepared on the same basis as the audited annual consolidated financial statements and, in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary for the fair statement of the Company’s financial position as of June 30, 2026, the results of its operations for the three and six months ended June 30, 2026 and 2025, the condensed consolidated statements of stockholders’ equity for the three and six months ended June 30, 2026 and 2025, and its cash flows for the six months ended June 30, 2026 and 2025. The financial data and other information disclosed in these notes related to the three and six months ended June 30, 2026 and 2025 are also unaudited. The results for the three and six months ended June 30, 2026 are not necessarily indicative of results to be expected for the year ending December 31, 2026, any other interim periods, or any future year or period. The condensed consolidated balance sheet data as of December 31, 2025 was derived from our audited financial statements, but does not include all disclosures required by U.S. GAAP. These interim financial statements should be read in conjunction with the audited financial statements as of and for the year ended December 31, 2025, and notes thereto, which are included in the Company’s Annual Report on Form 10-K that was filed with the SEC on March 3, 2026.
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| Use of Estimates | Use of Estimates The preparation of the Company’s condensed 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 the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting periods. Significant estimates and assumptions reflected within these condensed consolidated financial statements include, but are not limited to, the valuation of the Company’s common stock and stock-based awards. The Company bases its estimates on historical experience, known trends and other market-specific or other relevant factors that it believes to be reasonable under the circumstances. On an ongoing basis, management evaluates its estimates, as there are changes in circumstances, facts and experience. Actual results may differ materially from those estimates or assumptions.
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| Segment Information | Segment Information Under ASC 280, Segment Reporting, operating segment is a component of a public entity that 1) engages in business activities from which it may recognize revenues and incur expenses, 2) its operating results are regularly reviewed by the entity’s chief operating decision maker, or CODM, to make decisions about resource allocation or performance assessment, and 3) its discrete financial information is available. The Company operates and manages its business as a single segment for the purposes of assessing performance and making operating decisions. Our chief executive officer, who is the CODM, manages and allocates resources to the operations of our company on a total company basis by assessing the overall level of resources available and how to best deploy these resources across functions and research and development projects that are in line with our long-term company-wide strategic goals. In making these decisions, the CODM uses consolidated financial information for purposes of evaluating performance, forecasting future period financial results, allocating resources and setting incentive targets. The CODM performs this assessment based on the Company’s consolidated net loss. Through this analysis, the CODM assesses performance by comparing actual net loss against the budget, and then decides how to allocate resources to invest in the Company’s research and development programs. The measure of segment assets is reported on the condensed consolidated balance sheets as total assets.
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| Recently Issued Accounting Pronouncements Not Yet Adopted | Recently Issued Accounting Pronouncements Not Yet Adopted In November 2024, the FASB issued ASU 2024-03, Disaggregation of Income Statement Expenses, which requires more detailed information about specified categories of expenses included in certain expense captions presented on the face of the income statement. This ASU is effective for fiscal years beginning after December 15, 2026, and for interim periods within fiscal years beginning after December 15, 2027. Early adoption is permitted. The amendments may be applied either (1) prospectively to financial statements issued for reporting periods after the effective date of this ASU or (2) retrospectively to all prior periods presented in the financial statements. The Company is currently evaluating the impact this ASU will have on its disclosures. In September 2025, the FASB issued ASU No. 2025-07, Derivatives and Hedging (Topic 815) and Revenue from Contracts with Customers (Topic 606): Derivatives Scope Refinements and Scope Clarification for Share-Based Noncash Consideration from a Customer in a Revenue Contract. This update introduces a scope exception to derivative accounting for certain contracts with underlyings tied to operations or activities specific to one of the parties. Additionally, the update clarifies that share-based noncash consideration received from a customer should be accounted for under Topic 606 until the right to receive or retain the consideration becomes unconditional. The amendments can be applied prospectively or modified retrospectively and are effective for annual and interim periods beginning after December 15, 2026. The Company does not expect this ASU to have a material impact on its consolidated financial statements. In December 2025, the FASB issued ASU No. 2025-11, Interim Reporting (Topic 270): Narrow-scope Improvements, which improves the navigability of interim reporting guidance. The ASU also addresses the form and content of financial statements, adds lists to ASC 270 of the interim disclosures required by all other codification topics, and establishes a principle under which an entity must “disclose events since the end of the last annual reporting period that have a material impact on the entity.” This ASU is effective for interim reporting periods within annual reporting periods beginning after December 15, 2027, with early adoption permitted. The Company is currently evaluating the impact this ASU will have on its interim disclosures. Other accounting standards that have been issued by the FASB or other standards-setting bodies that do not require adoption until a future date are not expected to have a material impact on the Company’s financial statements upon adoption.
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