Basis of Presentation and Summary of Significant Accounting Policies	3 Months Ended
Oct. 02, 2026
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	Basis of Presentation and Summary of Significant Accounting Policies Organization Seagate Technology Holdings plc (“STX”) and its subsidiaries (collectively, unless the context otherwise indicates, the “Company”) is a leading provider of mass-capacity data storage, accelerating the world’s ability to harness the full value of data. The Company designs and manufactures hard disk drives (“HDDs”), a foundational technology for delivering energy-efficient, mass-capacity storage with favorable storage economics that underpins modern digital infrastructure, along with storage systems and related solutions serving two principal end markets: Data Center and Edge / Internet of Things (“Edge IoT”). Data Center serves cloud and enterprise environments that rely on scalable, high-capacity storage infrastructure to support AI-enabled computing, business-critical applications and other data-intensive workloads. Edge IoT supports industrial and consumer-oriented environments where data is increasingly processed and stored closer to where it is created. Basis of Presentation and Consolidation The unaudited Condensed Consolidated Financial Statements of the Company and the accompanying notes were prepared in accordance with United States (“U.S.”) Generally Accepted Accounting Principles (“GAAP”). The Company’s unaudited Condensed Consolidated Financial Statements include the accounts of the Company and all its wholly-owned and majority-owned subsidiaries, after elimination of intercompany transactions and balances. The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the Company’s Condensed Consolidated Financial Statements and accompanying notes. Actual results could differ materially from those estimates. The methods, estimates and judgments the Company uses in applying its most critical accounting policies have a significant impact on the results the Company reports in its Condensed Consolidated Financial Statements. The Company’s Consolidated Financial Statements for the fiscal year ended July 3, 2026 are included in its Annual Report on Form 10-K, as filed with the U.S. Securities and Exchange Commission (“SEC”) on August 4, 2026. The Company believes that the disclosures included in these unaudited Condensed Consolidated Financial Statements, when read in conjunction with its Consolidated Financial Statements as of July 3, 2026, and the notes thereto, are adequate to make the information presented not misleading. The results of operations for the three months ended October 2, 2026 are not necessarily indicative of the results to be expected for any subsequent interim period or for the Company’s fiscal year ending July 2, 2027. Fiscal Year The Company operates and reports financial results on a fiscal year of 52 or 53 weeks ending on the Friday closest to June 30. In fiscal years with 53 weeks, the first quarter consists of 14 weeks and the remaining quarters consist of 13 weeks each. The three months ended October 2, 2026 consisted of 13 weeks and the three months ended October 3, 2025 consisted of 14 weeks. Fiscal years 2027 and 2026 comprise 52 and 53 weeks and end on July 2, 2027 and July 3, 2026, respectively. The fiscal quarters ended October 2, 2026, July 3, 2026 and October 3, 2025, are also referred to herein as the “September 2026 quarter”, the “June 2026 quarter” and the “September 2025 quarter”, respectively. Summary of Significant Accounting Policies There have been no material changes to the Company’s significant accounting policies disclosed in Note 1. Basis of Presentation and Summary of Significant Accounting Policies of “Financial Statements and Supplementary Data” contained in Part II, Item 8. of the Company’s Annual Report on Form 10-K for the fiscal year ended July 3, 2026, as filed with the SEC on August 4, 2026. Recently Issued Accounting Pronouncements In November 2024, the FASB issued ASU 2024-03 (ASC Subtopic 220-40), Disaggregation of Income Statement Expenses. The Company is required to disclose, in the notes to the financial statements, specified information about certain costs and expenses. The Company is required to adopt this guidance for its annual reporting in fiscal year 2028, and for interim period reporting beginning the first quarter of fiscal year 2029 on either a prospective or retrospective basis. This standard is expected to impact the Company’s disclosures and will not have an impact on its Consolidated Financial Statements.

Seagate Technology Holdings plc (“STX”) and its subsidiaries (collectively, unless the context otherwise indicates, the “Company”) is a leading provider of mass-capacity data storage, accelerating the world’s ability to harness the full value of data. The Company designs and manufactures hard disk drives (“HDDs”), a foundational technology for delivering energy-efficient, mass-capacity storage with favorable storage economics that underpins modern digital infrastructure, along with storage systems and related solutions serving two principal end markets: Data Center and Edge / Internet of Things (“Edge IoT”). Data Center serves cloud and enterprise environments that rely on scalable, high-capacity storage infrastructure to support AI-enabled computing, business-critical applications and other data-intensive workloads. Edge IoT supports industrial and consumer-oriented environments where data is increasingly processed and stored closer to where it is created.

The unaudited Condensed Consolidated Financial Statements of the Company and the accompanying notes were prepared in accordance with United States (“U.S.”) Generally Accepted Accounting Principles (“GAAP”). The Company’s unaudited Condensed Consolidated Financial Statements include the accounts of the Company and all its wholly-owned and majority-owned subsidiaries, after elimination of intercompany transactions and balances.

The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the Company’s Condensed Consolidated Financial Statements and accompanying notes. Actual results could differ materially from those estimates. The methods, estimates and judgments the Company uses in applying its most critical accounting policies have a significant impact on the results the Company reports in its Condensed Consolidated Financial Statements.

The Company’s Consolidated Financial Statements for the fiscal year ended July 3, 2026 are included in its Annual Report on Form 10-K, as filed with the U.S. Securities and Exchange Commission (“SEC”) on August 4, 2026. The Company believes that the disclosures included in these unaudited Condensed Consolidated Financial Statements, when read in conjunction with its Consolidated Financial Statements as of July 3, 2026, and the notes thereto, are adequate to make the information presented not misleading. The results of operations for the three months ended October 2, 2026 are not necessarily indicative of the results to be expected for any subsequent interim period or for the Company’s fiscal year ending July 2, 2027.

The Company operates and reports financial results on a fiscal year of 52 or 53 weeks ending on the Friday closest to June 30. In fiscal years with 53 weeks, the first quarter consists of 14 weeks and the remaining quarters consist of 13 weeks each. The three months ended October 2, 2026 consisted of 13 weeks and the three months ended October 3, 2025 consisted of 14 weeks. Fiscal years 2027 and 2026 comprise 52 and 53 weeks and end on July 2, 2027 and July 3, 2026, respectively. The fiscal quarters ended October 2, 2026, July 3, 2026 and October 3, 2025, are also referred to herein as the “September 2026 quarter”, the “June 2026 quarter” and the “September 2025 quarter”, respectively.

There have been no material changes to the Company’s significant accounting policies disclosed in Note 1. Basis of Presentation and Summary of Significant Accounting Policies of “Financial Statements and Supplementary Data” contained in Part II, Item 8. of the Company’s Annual Report on Form 10-K for the fiscal year ended July 3, 2026, as filed with the SEC on August 4, 2026.

In November 2024, the FASB issued ASU 2024-03 (ASC Subtopic 220-40), Disaggregation of Income Statement Expenses. The Company is required to disclose, in the notes to the financial statements, specified information about certain costs and expenses. The Company is required to adopt this guidance for its annual reporting in fiscal year 2028, and for interim period reporting beginning the first quarter of fiscal year 2029 on either a prospective or retrospective basis. This standard is expected to impact the Company’s disclosures and will not have an impact on its Consolidated Financial Statements.