Nature of the Business and Basis of Presentation (Policies)	3 Months Ended
Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The condensed consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) and the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). Any reference in these notes to applicable guidance is meant to refer to the authoritative U.S. GAAP as found in the Accounting Standards Codifications (“ASC”) and the Accounting Standards Updates (“ASU”) of the Financial Accounting Standards Board (“FASB”). The condensed consolidated financial statements include the condensed consolidated accounts of the Company’s majority-owned subsidiary, ADK LLC, of which approximately 93% was owned by indie as of March 31, 2026. ADK LLC’s condensed consolidated financial statements include its wholly-owned subsidiaries indie Services Corporation, indie LLC and indie City LLC, all California entities, Ay Dee Kay Limited (“Ay Dee Kay Ltd.”), a private limited company incorporated under the laws of Scotland, indie Semiconductor Germany GmbH, Symeo GmbH and indie Semiconductor FFO GmbH, which was previously known as Silicon Radar GmbH (“indie FFO”), all of which are private limited liability companies incorporated under the laws of Germany, indie Technologies Switzerland AG, which was previously known as Exalos AG (“indie Switzerland”), a company limited by shares organized under the laws of Switzerland, emotion3D GmbH (“emotion3D”), a private limited liability company incorporated under the laws of Austria, indie Kft, a limited liability company incorporated under the laws of Hungary, indie Photonics Canada Inc., which was previously known as TeraXion Inc. (“indie Canada”) and Geo Semiconductor Canada Inc., both incorporated under the laws of Canada, indie Semiconductor Israel Ltd., a private limited company incorporated under the laws of Israel, Ay Dee Kay S.A., a limited liability company incorporated under the laws of Argentina, indie Semiconductor Morocco, a limited liability company under the laws of Morocco, indie Semiconductor Japan KK, a limited liability company under the laws of Japan, indie China Technology Co., Ltd (Shanghai) and indie China Technology Co., Ltd (Shenzhen), both are private limited company incorporated under the laws of People's Republic of China, Wuxi indie Microelectronics (“Wuxi”), a Chinese entity with approximately 59% voting controlled and approximately 34% owned by the Company as of March 31, 2026 and Wuxi’s wholly-owned subsidiaries, indie Semiconductor Suzhou, indie Semiconductor HK, Ltd and Shanghai Ziying Microelectronics Co., Ltd. All significant intercompany accounts and transactions of the Company's subsidiaries have been eliminated in consolidation. The noncontrolling interest attributable to the Company’s less-than-wholly-owned subsidiary is presented as a separate component from stockholders’ equity (deficit) in the condensed consolidated balance sheets and a noncontrolling interest in the condensed consolidated statements of operations and condensed consolidated statements of stockholders’ equity (deficit) and noncontrolling interest. Unaudited Interim Financial Information The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC for interim financial reporting. Certain information and footnote disclosures, normally included in annual consolidated financial statements prepared in accordance with U.S. GAAP, have been condensed or omitted pursuant to those rules and regulations. However, in management’s opinion, the financial information reflects all adjustments, including those of a normal recurring nature, necessary to present fairly the results of operations, financial position, and cash flows of the Company for the periods presented. The results of operations, financial position, and cash flows for the Company during the interim periods are not necessarily indicative of those expected for the full year. This information should be read in conjunction with the Company’s consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025, filed with the SEC on February 27, 2026. Significant Accounting Policies The Company’s significant accounting policies are disclosed in its Annual Report on Form 10-K for the year ended December 31, 2025. There has been no material change to the Company’s significant accounting policies during the three months ended March 31, 2026.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Recently Issued Not Yet Adopted Accounting Pronouncements In December 2025, the FASB issued ASU 2025-12, Codification Improvements. The amendments in this update address changes to the Codification intended to clarify, correct errors and make minor improvements, making the Codification easier to understand and apply. The new guidance will be applied prospectively and is effective for fiscal years beginning after December 15, 2026, and interim periods within those annual reporting periods, with the option to apply retrospectively. Early adoption is permitted. The adoption of this guidance is not expected to have a significant impact on the Company's condensed consolidated financial statements. In December 2025, the FASB issued ASU 2025-11, Interim Reporting (Topic 270): Narrow-Scope Improvements (ASU 2025-11), to amend the guidance in “Interim Reporting” (Topic 270). The update provides clarifications intended to improve the consistency and usability of interim disclosure requirements, including a comprehensive listing of required interim disclosures and a new disclosure principle for reporting material events occurring after the most recent annual period. The amendments do not change the underlying objectives of interim reporting but are designed to enhance clarity in application. The guidance is effective for fiscal years beginning after December 15, 2027, including interim periods within those fiscal years. The Company is currently evaluating the impact that the new guidance will have on the presentation of our condensed consolidated financial statements and accompanying notes. In July 2025, the FASB issued ASU No. 2025-05, Financial Instruments — Credit Losses (Topic 326): Measurements of Credit Losses for Accounts Receivable and Contract Assets (ASU 2025-05). The amendments in this update provide a practical expedient related to the estimation of expected credit losses for current accounts receivable and current contract assets that arise from transactions accounted for under FASB Accounting Standards Codification 606. Under ASU 2025-05, an entity is required to disclose whether it has elected to use the practical expedient. An entity that makes the accounting policy election is required to disclose the date through which subsequent cash collection are evaluated. ASU 2025-05 is effective for the Company beginning in the fiscal year ending February 28, 2027. The Company is currently evaluating the impacts of the adoption of ASU 2025-05 on the condensed consolidated financial statements. In November 2024, the FASB issued ASU No. 2024-03, Income Statement — Reporting Comprehensive Income — Expenses Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which provides guidance intended to enhance disclosures related to the disaggregation of income statement expenses. The standard requires, in the notes to the financial statements, disclosure of specified information about certain costs and expenses which includes purchases of inventory, employee compensation, depreciation, and intangible asset amortization included in each relevant expense caption. The standard also requires amounts that are already required to be disclosed under U.S. GAAP in the same disclosure as the other disaggregation requirements, disclosure of a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively, and disclosure of the total amount of selling expenses and, in annual reporting periods, an entity's definition of selling expenses. The amendments in this standard are effective for annual periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027. Companies have the option to apply the guidance either on a retrospective or prospective basis, and early adoption is permitted. The standard will become effective for indie for its fiscal year 2027 annual financial statements and interim financial statements thereafter and may be applied prospectively to periods after the adoption date or retrospectively for all prior periods presented in the financial statements, with early adoption permitted. The Company plans to adopt the standard when it becomes effective beginning in its fiscal year 2027 annual financial statements and is currently evaluating the impact this guidance will have on its condensed consolidated financial statements.

Nature of the Business and Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2026

Organization, Consolidation and Presentation of Financial Statements [Abstract]

The condensed consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) and the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). Any reference in these notes to applicable guidance is meant to refer to the authoritative U.S. GAAP as found in the Accounting Standards Codifications (“ASC”) and the Accounting Standards Updates (“ASU”) of the Financial Accounting Standards Board (“FASB”). The condensed consolidated financial statements include the condensed consolidated accounts of the Company’s majority-owned subsidiary, ADK LLC, of which approximately 93% was owned by indie as of March 31, 2026. ADK LLC’s condensed consolidated financial statements include its wholly-owned subsidiaries indie Services Corporation, indie LLC and indie City LLC, all California entities, Ay Dee Kay Limited (“Ay Dee Kay Ltd.”), a private limited company incorporated under the laws of Scotland, indie Semiconductor Germany GmbH, Symeo GmbH and indie Semiconductor FFO GmbH, which was previously known as Silicon Radar GmbH (“indie FFO”), all of which are private limited liability companies incorporated under the laws of Germany, indie Technologies Switzerland AG, which was previously known as Exalos AG (“indie Switzerland”), a company limited by shares organized under the laws of Switzerland, emotion3D GmbH (“emotion3D”), a private limited liability company incorporated under the laws of Austria, indie Kft, a limited liability company incorporated under the laws of Hungary, indie Photonics Canada Inc., which was previously known as TeraXion Inc. (“indie Canada”) and Geo Semiconductor Canada Inc., both incorporated under the laws of Canada, indie Semiconductor Israel Ltd., a private limited company incorporated under the laws of Israel, Ay Dee Kay S.A., a limited liability company incorporated under the laws of Argentina, indie Semiconductor Morocco, a limited liability company under the laws of Morocco, indie Semiconductor Japan KK, a limited liability company under the laws of Japan, indie China Technology Co., Ltd (Shanghai) and indie China Technology Co., Ltd (Shenzhen), both are private limited company incorporated under the laws of People's Republic of China, Wuxi indie Microelectronics (“Wuxi”), a Chinese entity with approximately 59% voting controlled and approximately 34% owned by the Company as of March 31, 2026 and Wuxi’s wholly-owned subsidiaries, indie Semiconductor Suzhou, indie Semiconductor HK, Ltd and Shanghai Ziying Microelectronics Co., Ltd.

All significant intercompany accounts and transactions of the Company's subsidiaries have been eliminated in consolidation. The noncontrolling interest attributable to the Company’s less-than-wholly-owned subsidiary is presented as a separate component from stockholders’ equity (deficit) in the condensed consolidated balance sheets and a noncontrolling interest in the condensed consolidated statements of operations and condensed consolidated statements of stockholders’ equity (deficit) and noncontrolling interest.

Unaudited Interim Financial Information

The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC for interim financial reporting. Certain information and footnote disclosures, normally included in annual consolidated financial statements prepared in accordance with U.S. GAAP, have been condensed or omitted pursuant to those rules and regulations. However, in management’s opinion, the financial information reflects all adjustments, including those of a normal recurring nature, necessary to present fairly the results of operations, financial position, and cash flows of the Company for the periods presented. The results of operations, financial position, and cash flows for the Company during the interim periods are not necessarily indicative of those expected for the full year. This information should be read in conjunction with the Company’s

consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025, filed with the SEC on February 27, 2026.

Significant Accounting Policies

The Company’s significant accounting policies are disclosed in its Annual Report on Form 10-K for the year ended December 31, 2025. There has been no material change to the Company’s significant accounting policies during the three months ended March 31, 2026.

Recent Accounting Pronouncements

Recently Issued Not Yet Adopted Accounting Pronouncements

In December 2025, the FASB issued ASU 2025-12, Codification Improvements. The amendments in this update address changes to the Codification intended to clarify, correct errors and make minor improvements, making the Codification easier to understand and apply. The new guidance will be applied prospectively and is effective for fiscal years beginning after December 15, 2026, and interim periods within those annual reporting periods, with the option to apply retrospectively. Early adoption is permitted. The adoption of this guidance is not expected to have a significant impact on the Company's condensed consolidated financial statements.

In December 2025, the FASB issued ASU 2025-11, Interim Reporting (Topic 270): Narrow-Scope Improvements (ASU 2025-11), to amend the guidance in “Interim Reporting” (Topic 270). The update provides clarifications intended to improve the consistency and usability of interim disclosure requirements, including a comprehensive listing of required interim disclosures and a new disclosure principle for reporting material events occurring after the most recent annual period. The amendments do not change the underlying objectives of interim reporting but are designed to enhance clarity in application. The guidance is effective for fiscal years beginning after December 15, 2027, including interim periods within those fiscal years. The Company is currently evaluating the impact that the new guidance will have on the presentation of our condensed consolidated financial statements and accompanying notes.

In July 2025, the FASB issued ASU No. 2025-05, Financial Instruments — Credit Losses (Topic 326): Measurements of Credit Losses for Accounts Receivable and Contract Assets (ASU 2025-05). The amendments in this update provide a practical expedient related to the estimation of expected credit losses for current accounts receivable and current contract assets that arise from transactions accounted for under FASB Accounting Standards Codification 606. Under ASU 2025-05, an entity is required to disclose whether it has elected to use the practical expedient. An entity that makes the accounting policy election is required to disclose the date through which subsequent cash collection are evaluated. ASU 2025-05 is effective for the Company beginning in the fiscal year ending February 28, 2027. The Company is currently evaluating the impacts of the adoption of ASU 2025-05 on the condensed consolidated financial statements.

In November 2024, the FASB issued ASU No. 2024-03, Income Statement — Reporting Comprehensive Income — Expenses Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which provides guidance intended to enhance disclosures related to the disaggregation of income statement expenses. The standard requires, in the notes to the financial statements, disclosure of specified information about certain costs and expenses which includes purchases of inventory, employee compensation, depreciation, and intangible asset amortization included in each relevant expense caption. The standard also requires amounts that are already required to be disclosed under U.S. GAAP in the same disclosure as the other disaggregation requirements, disclosure of a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively, and disclosure of the total amount of selling expenses and, in annual reporting periods, an entity's definition of selling expenses. The amendments in this standard are effective for annual periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027. Companies have the option to apply the guidance either on a retrospective or prospective basis, and early adoption is permitted. The standard will become effective for indie for its fiscal year 2027 annual financial statements and interim financial statements thereafter and may be applied prospectively to periods after the adoption date or retrospectively for all prior periods presented in the financial statements, with early adoption permitted. The Company plans to adopt the standard when it becomes effective beginning in its fiscal year 2027 annual financial statements and is currently evaluating the impact this guidance will have on its condensed consolidated financial statements.