LOGITECH INTERNATIONAL S.A.

Report of Independent Registered Public Accounting Firm

To the Shareholders and Board of Directors

Logitech International S.A.:

Opinions on the Consolidated Financial Statements and Internal Control Over Financial Reporting

We have audited the accompanying consolidated balance sheets of Logitech International S.A. and subsidiaries (the Company) as of March 31, 2026 and 2025, the related consolidated statements of operations, comprehensive income, changes in shareholders’ equity, and cash flows for each of the years in the three-year period ended March 31, 2026, and the related notes and financial statement schedule II (collectively, the consolidated financial statements). We also have audited the Company’s internal control over financial reporting as of March 31, 2026, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of March 31, 2026 and 2025, and the results of its operations and its cash flows for each of the years in the three-year period ended March 31, 2026, in conformity with U.S. generally accepted accounting principles. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of March 31, 2026 based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

Basis for Opinions

The Company’s management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management's Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s consolidated financial statements and an opinion on the Company’s internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.

Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of a critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Assessment of the accruals for certain Customer Programs

As discussed in Notes 2 and 8 to the consolidated financial statements, the Company recorded accrued Customer Program liabilities of $211.9 million as of March 31, 2026 for customer incentives, cooperative marketing, and pricing programs (collectively, Customer Programs). The Company records these accruals as a reduction of revenue at the time of sale. For certain of these accruals, the Company estimated the amounts based on historical data or future commitments that are planned and controlled by the Company. The Company uses judgment in analyzing historical trends, inventories owned by and located at customers, products sold by direct customers to end customers or resellers, known product quality issues, negotiated terms, and other relevant customer and product information, such as stage of product life cycle, which are expected to experience unusually high discounting.

We identified the assessment of the accruals for certain Customer Programs as a critical audit matter. Historical experience being predictive of Customer Programs’ earned amounts is the significant assumption used to estimate the accruals for Customer Programs. Due to the inherent uncertainties related to the relevance of the predictive historical experience to the determination of the estimate, the testing required a high degree of auditor judgment.

The following are the primary procedures we performed to address this critical audit matter. We evaluated the design and tested the operating effectiveness of certain internal controls related to the critical audit matter. This included controls related to the Company’s assessment of whether historical experience is predictive of Customer Programs’ earned amounts and the Company’s validation of the underlying channel inventory data used to estimate the accruals for Customer Programs. We assessed the historical experience used in estimating the accruals for certain Customer Programs using a combination of the Company’s internal historical information of sales, Customer Programs’ earned amounts, and relevant and reliable third-party channel inventory and sell-through data. In addition, we evaluated the Company’s ability to estimate the accruals for certain Customer Programs by comparing recorded accruals from fiscal year 2025 to actual subsequent Customer Programs’ earned amounts in fiscal year 2026.

/s/KPMG LLP

We have served as the Company’s auditor since 2014.

San Francisco, California

May 21, 2026