Nature of Business and Significant Accounting Policies (Policies) |
6 Months Ended |
|---|---|
Jun. 30, 2026 | |
| Accounting Policies [Abstract] | |
| Basis of Presentation | Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP"). These unaudited condensed consolidated financial statements include all adjustments, which include normal recurring adjustments, necessary for the fair presentation of the Company’s financial position. These unaudited interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements as of and for the year ended December 31, 2025, and the notes thereto, which are included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025. 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 financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates and changes in these estimates are recorded when known. The unaudited condensed consolidated financial statements include the accounts of the Company and our wholly owned subsidiary, Aptevo Research and Development LLC ("Aptevo R&D"). All intercompany balances and transactions have been eliminated. For all periods presented in the financial statements and accompanying footnotes, share and per share amounts have been retroactively adjusted to reflect the reverse stock splits (as discussed below) |
| Reclassification | Reclassification Certain amounts in the accompanying consolidated financial statements were reclassified to conform to the current period presentation. There has been no impact on previously reported net loss or stockholders' equity from such reclassification. |
| Use of Estimates | Use of Estimates The preparation of financial statements in conformity with GAAP requires estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses, and related disclosures of contingent liabilities in the unaudited condensed financial statements and accompanying notes. Estimates are used for, but not limited to, clinical accruals, useful lives of equipment, commitments and contingencies, stock-based compensation, fair value of common warrants, and incremental borrowing rate (IBR) used for our lease. Given the global economic and geopolitical climate, these estimates are becoming more challenging, and actual results could differ materially from those estimates. |
| Significant Accounting Policies | Significant Accounting Policies Our significant accounting policies were reported in our Annual Report on Form 10-K for the year ended December 31, 2025 that was filed with the Securities and Exchange Commission (the "SEC") on March 26, 2026. Our other significant accounting policies have not changed materially from the policies previously reported. |
| Recently Adopted Accounting Pronouncements | Recently Adopted Accounting Pronouncements In December 2025, the FASB issued ASU 2025-10, Government Grants (Topic 832): Accounting for Government Grants Received by Business Entities, which establishes guidance on the recognition, measurement, presentation, and disclosure of government grants received by business entities. The guidance, which leverages principles from International Accounting Standard 20, Accounting for Government Grants and Disclosure of Government Assistance (“IAS 20”), and amends ASC 832, is effective for annual periods beginning after December 15, 2028, including interim periods within those annual periods. Early adoption is permitted. The Company early adopted ASU 2025-10 prospectively on April 1, 2026, as a result of the grant award agreement with the Andy Hill Cancer Research Endowment (CARE) Fund, and the adoption did not have a material impact on the Company’s financial statements. |
| Accounting Pronouncements Pending Adoption | Accounting Pronouncements Pending Adoption In November 2024, the Financial Accounting Standards Board issued ASU 2024-03, Disaggregation of Income Statement Expenses (DISE). The purpose of ASU 2024-03 is to enhance expense disclosures by requiring additional disaggregated 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. The amendments may be applied either prospectively to financial statements issued for reporting periods after the effective date of this ASU or retrospectively to all prior periods presented in the financial statements. The Company is currently assessing the impact this ASU will have on its financial statements. |