Significant Accounting Policies (Policies) |
9 Months Ended | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sep. 30, 2025 |
Dec. 31, 2024 |
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| Accounting Policies [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Basis of Presentation | Basis of Presentation The Company’s unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) as determined by the FASB ASC and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). The unaudited condensed consolidated financial statements include the accounts of the Company and its consolidated subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. The unaudited condensed consolidated financial statements do not include all of the disclosures required by U.S. GAAP for annual financial statements and should be read in conjunction with the audited financial statements of the Company as of and for the year ended December 31, 2024 (the “Annual Financial Statements”). In the opinion of the Company, the accompanying unaudited condensed consolidated financial statements contain all adjustments, consisting of only normal recurring adjustments, necessary to fairly present its financial position as of September 30, 2025, its results of operations for the three and nine months ended September 30, 2025 and 2024, its cash flows for the nine months ended September 30, 2025 and 2024, and its changes in ’stockholders’ deficit for the three and nine months ended September 30, 2025 and 2024. Results of operations for the interim periods are not necessarily indicative of the results to be expected for the full year ending December 31, 2025 or any future period. The condensed consolidated balance sheet as of December 31, 2024 was derived from the Annual Financial Statements but does not contain all of the footnote disclosures from the Annual Financial Statements. |
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| Use of Estimates | Use of Estimates The preparation of the unaudited condensed consolidated financial statements in conformity with U.S. GAAP requires the Company’s 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 unaudited condensed consolidated financial statements and the reported amounts of expenses during the reporting periods. Actual results may differ materially and adversely from these estimates. The Company is not aware of any significant estimates that required management to exercise significant judgment with the exception of the Company’s warrant liability. If the underlying estimates and assumptions upon which the estimates are based change in the future, actual amounts may differ from those included in the Company’s unaudited condensed consolidated financial statements. |
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| Segments | Segments The Company’s chief operating decision maker (“CODM”), the Chief Executive Officer, manages the Company’s business activities as a single operating and reportable segment. Accordingly, the Company’s CODM uses net income/loss to measure the Company’s single segment’s performance and allocate resources. Further, the CODM reviews and utilizes functional expenses (general and administrative and research and development) to manage the Company’s operations. The Company’s general and administrative expenses for each of the three months ended September 30, 2025 and 2024 included $37,500 of compensation expenses related to the compensation agreement the Company has executed with its Chief Executive Officer. The Company’s general and administrative expenses for each of the nine months ended September 30, 2025 and 2024 included $112,500 of compensation expenses related to the compensation agreement the Company has executed with its Chief Executive Officer. The remaining general and administrative expenses are related to legal and accounting-related expenses for contractors. The Company’s research and development expenses did not include any compensation-related expenses. Other segment items included in net income (loss) are interest expense, related parties and interest income which are reflected in the Company’s unaudited condensed consolidated statements of operations. |
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| Cash | Cash Financial instruments that potentially subject the Company to concentration of credit risk consist of cash accounts in a financial institution which can exceed government insured limits. The Company considers all highly liquid investments with an original maturity of three months or less at the date of purchase to be cash equivalents. The Company did not have any cash equivalents as of September 30, 2025 and December 31, 2024. |
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| Loan Receivable | Loan Receivable The Company accounts for its loan receivable at amortized cost, net of expected credit losses. The Company provides reserves against its loan receivable balance for estimated credit losses, if any, that may result from a counterparty’s inability to pay based on the composition of the loan receivable, current economic conditions and, historical credit loss activity and future expected conditions and market trends (such as general economic conditions, other macroeconomic and microeconomic events, etc.). Changes in circumstances relating to these factors may result in the need to increase or decrease the allowance for credit losses in the future. Amounts deemed uncollectible are charged or written-off against the reserve. On April 30, 2025, in connection with the Business Combination, the loan receivable was eliminated in consolidation as Iris and Liminatus are now consolidated subsidiaries of the Company. As of December 31, 2024, no expected credit loss was recorded related to the loan receivable. |
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| Fair Value of Financial Instruments | Fair Value of Financial Instruments The Company’s financial assets and liabilities are accounted for in accordance with FASB ASC 820, Fair Value Measurements and Disclosures, which defines fair value as the exchange 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 liability in an orderly transaction between market participants on the measurement date. The fair value hierarchy requires an entity to maximize the use of observable inputs when measuring fair value and classifies those inputs into three levels: Level 1 — Observable inputs, such as quoted prices in active markets for identical assets or liabilities. Level 2 — Inputs other than Level 1 inputs that are either directly or indirectly observable, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the instrument’s anticipated life. Level 3 — Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions. To the extent the valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgement. Accordingly, the degree of judgement exercised by management in determining fair value is greatest for instruments categorized as Level 3. A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. The fair value of the warrant liability reported in the Company’s unaudited condensed consolidated balance sheets represent a Level 3 instrument. See Note 8. The carrying values reported in the Company’s unaudited condensed consolidated balance sheets for prepaid expenses and other current assets, due from related party, accounts payable and accrued expenses, accrued interest, short-term debt with related parties, due to related parties and its deferred underwriting fee payable are reasonable estimates of their fair values due to the short-term nature of these items. |
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| Research and Development Expenses | Research and Development Expenses Research and development expenses consist of costs incurred by Targeted Diagnostics & Therapeutics, Inc. (“TDT”) who was performing the research and development activities for the Company in accordance with the license agreements with TDT and the annual fee paid to TDT and are recorded as research and development expenses as incurred (see Note 3). |
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| Income Taxes | Income Taxes The Company accounts for income taxes in accordance with ASC Topic 740, Income Taxes (“ASC 740”). ASC 740 requires the recognition of deferred tax assets and liabilities for both the expected impact of differences between the financial statement and tax basis of assets and liabilities and for the expected future tax benefit to be derived from tax loss and tax credit carryforwards. ASC 740 additionally requires a valuation allowance to be established when it is more likely than not that all or a portion of deferred tax assets will not be realized. ASC 740 also clarifies the accounting for uncertainty in income taxes recognized in an enterprise’s financial statements and prescribes a recognition threshold and measurement process for financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. For those benefits to be recognized, a tax position must be more-likely-than-not to be sustained upon examination by taxing authorities. There were no tax accruals relating to uncertain tax positions. The Company recognizes accrued interest and penalties related to unrecognized tax positions as income tax expense. There were no unrecognized tax positions, and no amounts accrued for interest and penalties as of September 30, 2025 and December 31, 2024. The Company is currently not aware of any issues under review that could result in significant payments, accruals or material deviation from its position. The Company has identified the United States as its only “major” tax jurisdiction. The Company is subject to income tax examinations by major taxing authorities since inception. These examinations may include questioning the timing and amount of deductions, the nexus of income among various tax jurisdictions and compliance with federal and state tax laws. No unrecognized tax benefits were identified as of September 30, 2025 or December 31, 2024. |
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| Recently Adopted Accounting Pronouncements | Recently Adopted Accounting Pronouncements In December 2023, the Financial Accounting Standards Board (“FASB”) issued ASU 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” that addresses requests for improved income tax disclosures from investors that use the financial statements to make capital allocation decisions. Public entities must adopt the new guidance for fiscal years beginning after December 15, 2024. The amendments in this ASU must be applied on a retrospective basis to all prior periods presented in the financial statements and early adoption is permitted. The Company adopted this standard on January 1, 2025 and determined that the adoption does not have a material impact on these unaudited condensed consolidated financial statements. Recently Issued Accounting Pronouncements – Not Yet Adopted On November 4, 2024, the FASB issued ASU 2024-03, Accounting Standards Update 2024-03, Income Statement-Reporting Comprehensive Income-Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses to improve financial reporting by requiring that public business entities disclose additional information about specific expense categories in the notes to financial statements at interim and annual reporting periods. The amendments in this ASU do not change or remove current expense disclosure requirements; however, the amendments affect where such information appears in the notes to financial statements because entities are required to include certain current disclosures in the same tabular format disclosure as the other disaggregation requirements in the amendments. This ASU is effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the potential impact that the adoption of this standard will have on its financial statements. Management does not believe that any recently issued, but not yet effective, accounting pronouncements, if currently adopted, would have a material effect on the Company’s unaudited condensed consolidated financial statements. |
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| Liminatus Pharma, LLC | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accounting Policies [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Basis of Presentation | Basis of Presentation The Company’s financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) as determined by the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) and pursuant to the rules and regulations of the SEC. |
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| Use of Estimates | Use of Estimates The preparation of the financial statements in conformity with U.S. GAAP requires the Company’s 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 financial statements and the reported amounts of expenses during the reporting periods. Actual results may differ materially and adversely from these estimates. |
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| Risks and Uncertainties | Risks and Uncertainties The Company is subject to risks common to early-stage companies in the biotechnology industry, including, but not limited to, development by the Company or its competitors of technological innovations, risks of failure of clinical studies, dependence on key personnel, protection of proprietary technology, compliance with government regulations, and ability to transition from preclinical manufacturing to commercial production of products. The Company’s future product candidates will require approvals from the U.S. Food and Drug Administration and comparable foreign regulatory agencies prior to commercial sales in their respective jurisdictions. There can be no assurance that any product candidates will receive the necessary approvals. If the Company is denied approval, approval is delayed or the Company is unable to maintain approval for any product candidate, it could have a material adverse impact on the Company. |
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| Segments | Segments The Company’s chief operating decision maker (“CODM”), the Chief Executive Officer, manages the Company’s business activities as a single operating and reportable segment. Accordingly, the Company’s CODM uses net income/loss to measure the Company’s single segment’s performance and allocate resources. Further, the CODM reviews and utilizes functional expenses (general and administrative and research and development) to manage the Company’s operations. The Company’s general and administrative expenses for each of the years ended December 31, 2024 and 2023 included approximately $0.2 million of compensation expense related to the compensation agreement the Company has executed with its Chief Executive Officer. The remaining general and administrative expenses related to legal and accounting-related expenses for contractors. The Company’s research and development expenses did not include any compensation-related expenses. Other segment items included in net loss are interest expense, related parties and interest income which are reflected in the Company’s statements of operations. |
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| Cash | Cash Financial instruments that potentially subject the Company to concentration of credit risk consist of cash accounts in a financial institution which can exceed government insured limits. The Company considers all highly liquid investments with an original maturity of three months or less at the date of purchase to be cash equivalents. The Company does not have any cash equivalents as of December 31, 2024 and 2023. |
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| Deferred Transaction Costs | Deferred Transaction Costs Costs incurred in connection with preparation for the proposed business combination are deferred on the balance sheets as of December 31, 2024 and 2023. |
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| Loan Receivable | Loan Receivable The Company accounts for its loan receivable at amortized cost, net of expected credit losses. The Company provides reserves against its loan receivable balance for estimated credit losses, if any, that may result from a counterparties inability to pay based on the composition of the loan receivable, current economic conditions and, historical credit loss activity and future expected conditions and market trends (such as general economic conditions, other macroeconomic and microeconomic events, etc.). Changes in circumstances relating to these factors may result in the need to increase or decrease the allowance for credit losses in the future. Amounts deemed uncollectible are charged or written-off against the reserve. As of December 31, 2024 and 2023, no expected credit losses were recorded related to the loan receivable. |
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| Fair Value of Financial Instruments | Fair Value of Financial Instruments The Company’s financial assets and liabilities are accounted for in accordance with FASB ASC 820, Fair Value Measurements and Disclosures, which defines fair value as the exchange 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 liability in an orderly transaction between market participants on the measurement date. The fair value hierarchy requires an entity to maximize the use of observable inputs when measuring fair value and classifies those inputs into three levels: Level 1 — Observable inputs, such as quoted prices in active markets for identical assets or liabilities. Level 2 — Inputs other than Level 1 inputs that are either directly or indirectly observable, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the instrument’s anticipated life. Level 3 — Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions. To the extent the valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgement. Accordingly, the degree of judgement exercised by management in determining fair value is greatest for instruments categorized as Level 3. A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. The carrying values reported in the Company’s balance sheets for loan receivable, amounts due to research and development partner, due from related party, accounts payable and accrued expenses, short-term debt, accrued interest, related parties and due to related parties are reasonable estimates of their fair values due to the short-term nature of these items. |
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| Research and Development Expenses | Research and Development Expenses Research and development expenses consist of costs incurred by Targeted Diagnostics & Therapeutics, Inc. (“TDT”) who was performing the research and development activities for the Company in accordance with the license agreements with TDT and the annual fee paid to TDT and are recorded as research and development expenses as incurred (see Note 3). |
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| Income Taxes | Income Taxes The Company is taxed as a partnership for United States income tax purposes for the years ended December 31, 2024 and 2023, thus the income or loss of the Company flows to the members. As a partnership for income tax purposes, the Company is not subject to tax and any tax liability is the responsibility of the members of the Company. Accordingly, no provision for federal and state income taxes is included in the financial statements for the years ended December 31, 2024 and 2023. |
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| Comprehensive Loss | Comprehensive Loss Comprehensive loss is equal to net loss as presented in the statements of operations for the year ended December 31, 2024 and 2023. |
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| Net Loss per Member Unit | Net Loss per Member Unit The Company calculates basic and diluted net loss per member unit in accordance with the two-class method required for participating securities. The Company has two classes of member units, which are referred to as Class A member units and Class B member units. Class B member units are allocated 51% of earnings and losses, and Class A member units are allocated 49% of earnings and losses. The two-class method requires net loss for the period to be allocated between the member units. Basic net loss per member unit is computed by dividing net loss by the weighted-average number of member units outstanding during the period. Diluted net loss per member unit excludes the potential impact of the Company’s warrants and options because their effect would be anti-dilutive due to the Company’s net loss for the periods presented. The following table presents a reconciliation of the numerator and denominator used to compute basic and diluted net loss per member unit for each class of member units (in thousands, except member unit and per member unit information):
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| Recently Adopted Accounting Pronouncements | Recently Adopted Accounting Pronouncements In September 2016, the FASB issued Accounting Standards Update (“ASU”) No. 2016-13, Financial Instruments — Credit Losses, which was subsequently amended by ASU No. 2018-19, ASU No. 2019-04, ASU No. 2019-05, ASU 2019-10, ASU No. 2019-11, ASU No. 2020-03, and ASU No. 2022-02. These ASUs have provided for various minor technical corrections and improvements to the codification as well as other transition matters. The standard requires the measurement of expected credit losses for financial instruments carried at amortized cost held at the reporting date based on historical experience, current conditions and reasonable forecasts. The updated guidance also amends the current other-than-temporary impairment model for available-for-sale debt securities by requiring the recognition of impairments relating to credit losses through an allowance account and limits the amount of credit loss to the difference between a security’s amortized cost basis and its fair value. The main objective of this ASU is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. The Company adopted this standard on January 1, 2023, with no impact on its financial statements and related disclosures. In November 2023, the FASB issued Accounting Standards Update 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which expands annual and interim disclosure requirements for reportable segments, primarily through enhanced disclosures about significant segment expenses. The Company adopted this standard effective January 1, 2024 using a retrospective method. For further information, refer to the Segments section in Note 2 Significant Accounting Policies. |
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| Recently Issued Accounting Pronouncements - Not Yet Adopted | Recently Issued Accounting Pronouncements – Not Yet Adopted In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The standard requires entities to disclose additional categories about federal, state and foreign income taxes in the effective tax rate reconciliation as well as provide annual income taxes paid disaggregated by federal, state and foreign taxes. The standard is effective for annual periods beginning after December 15, 2024. Early adoption is permitted. The Company is evaluating the impact of adopting this standard on its financial statements and related disclosures. Management does not believe that any additional recently issued, but not yet effective, accounting pronouncements, if currently adopted, would have a material effect on the Company’s financial statements. |
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