Sensata Technologies Holding plc

The required certifications of our Chief Executive Officer, Chief Financial Officer, and Chief Accounting Officer are included as Exhibits 31.1, 31.2, and 31.3 to this Annual Report on Form 10-K. The disclosures set forth in this Item 9A contain information concerning the evaluation of our disclosure controls and procedures, management's report on internal control over financial reporting, and changes in internal control over financial reporting referred to in these certifications. These certifications should be read in conjunction with this Item 9A for a more complete understanding of the matters covered by the certifications.

Evaluation of Disclosure Controls and Procedures

With the participation of our Chief Executive Officer, Chief Financial Officer, and Chief Accounting Officer, we have evaluated the effectiveness of our disclosure controls and procedures as of December 31, 2025. The term "disclosure controls and procedures," as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the United States Securities and Exchange Commission's rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company's management, including its principal executive and principal financial officers, as appropriate, to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives, and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

Based on the evaluation of our disclosure controls and procedures as of December 31, 2025, our Chief Executive Officer, Chief Financial Officer, and Chief Accounting Officer concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.

Management’s Report on Internal Control Over Financial Reporting

Management of Sensata Technologies Holding plc (the "Company") is responsible for establishing and maintaining adequate internal control over financial reporting as is defined in Exchange Act Rules 13a-15(f) and 15d-15(f). The Company’s internal control system was designed to provide reasonable assurance to the Company’s management, Board of Directors, and shareholders regarding the preparation and fair presentation of the Company’s published financial statements in accordance with generally accepted accounting principles. The Company’s internal control over financial reporting includes those policies and procedures that:

•pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the Company;

•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 are being made only in accordance with authorizations of management of the Company; and

•provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of our assets that could have a material effect on the financial statements.

There are inherent limitations to the effectiveness of any system of internal control over financial reporting. Accordingly, even an effective system of internal control over financial reporting can only provide reasonable assurance with respect to financial statement preparation and presentation in accordance with accounting principles generally accepted in the United States of America. Our internal controls over financial reporting are subject to various inherent limitations, including cost limitations, judgments used in decision making, assumptions about the likelihood of future events, the soundness of our systems, the possibility of human error, and the risk of fraud. Moreover, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may be inadequate because of changes in conditions and the risk that the degree of compliance with policies or procedures may deteriorate over time.

Management assessed the effectiveness of the Company’s internal control over financial reporting as of December 31, 2025. In making its assessment of internal control over financial reporting, management used the criteria issued by the Committee of Sponsoring Organizations ("COSO") of the Treadway Commission in May 2013.

Based on the results of this assessment, management, including our Chief Executive Officer, Chief Financial Officer, and Chief Accounting Officer, has concluded that, as of December 31, 2025, the Company’s internal control over financial reporting was effective.

The Company’s independent registered public accounting firm, Deloitte & Touche LLP, has also issued an audit report on the Company’s internal control over financial reporting, which is included elsewhere in this Annual Report on Form 10-K.

Swindon, United Kingdom

Changes in Internal Control over Financial Reporting

Other than execution of the material weakness remediation activities described below, no change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) occurred during the fourth quarter of the year ended December 31, 2025 that materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Remediation of Previously Disclosed Material Weaknesses

We previously identified and disclosed in our 2023 and 2024 Annual Reports, as well as in our Quarterly Report on Form 10-Q filed for the quarters ended between March 31, 2024 and September 30, 2025, material weaknesses in maintaining an appropriate internal control environment. The Company did not specify objectives with sufficient clarity to enable an appropriate level of risk assessment and monitoring. Additionally, the Company's control activities did not adequately and consistently establish policies, procedures, information protocols and communications to design and operate effective controls, due in part, to a lack of appropriate accounting personnel, impacting areas such as inventory and account reconciliation processes in our Americas Accounting and Shared Services teams located in Mexico.

As of December 31, 2025, Management has completed the implementation of our remediation efforts of the material weaknesses previously reported. A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting such that there is a reasonable possibility that a material misstatement of our annual or interim financial statements will not be prevented or detected on a timely basis.

Our remediation efforts included:

•Completion of an internal organizational assessment to identify gaps in knowledge and staffing levels and consider potential reorganization of our teams.

•Hiring of additional accounting and IT personnel, including a new Chief Accounting Officer in May 2024, with the appropriate level of knowledge, training, and experience to improve our internal control over financial reporting and IT capabilities and recruiting additional resources.

•Engaged a third party to assist in development and formalization of a risk assessment process across the organization to identify risks and design new controls or enhance existing controls responsive to such risks to ensure timely and accurate financial reporting based on criteria established in the COSO framework.

•Implemented a global system to enhance our account reconciliation process, increase monitoring capabilities, and improve our consistency.

•Assessed the specific training needs for newly hired and existing personnel and developed and delivered training programs designed to enhance our internal controls over financial reporting.

•Enhanced the procedures regarding our annual physical inventory counts, including employee training in performing annual physical counts and clarification of instructions as to the process for recording adjustments to inventory as a result of physical counts.

Report of Independent Registered Public Accounting Firm

To the shareholders and the Board of Directors of Sensata Technologies Holding plc

Opinion on Internal Control over Financial Reporting

We have audited the internal control over financial reporting of Sensata Technologies Holding plc and subsidiaries (the “Company”) as of December 31, 2025, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the Company maintained in all material respects, effective internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control — Integrated Framework (2013) issued by COSO.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated financial statements as of and for the year ended December 31, 2025, of the Company and our report dated February 27, 2026, expressed an unqualified opinion on those financial statements.

Basis for Opinion

The Company’s management is responsible 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 internal control over financial reporting based on our audit. We are a public accounting firm registered with the 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 audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

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.

/s/ Deloitte & Touche LLP

Boston, Massachusetts