INSULET CORP

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures designed to ensure that information required to be disclosed in reports filed under the Securities Exchange Act of 1934 (“the Exchange Act”), as amended, is recorded, processed, summarized and reported within the specified time periods, and that such information is accumulated and communicated to management, including our chief executive officer and chief financial officer, as appropriate, to allow timely decisions regarding required disclosure.

Our management, with the participation of our chief executive officer and chief financial officer, evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of September 30, 2024. Based on the evaluation, our chief executive officer (principal executive officer) and chief financial officer (principal financial officer) concluded that, as of that date, our disclosure controls and procedures were not effective due to the material weakness identified in the fourth quarter of 2023 described below.

Material Weakness in Internal Control Over Financial Reporting

As previously disclosed in "Part II. Item 9A. Controls and Procedures" in our Annual Report on Form 10-K for the year ended December 31, 2023, our chief executive officer and chief financial officer concluded that our internal control over financial reporting was not effective, due to a material weakness relating to information technology general controls (“ITGCs”). Specifically, the Company did not design and maintain effective ITGCs around systems that support the Company’s financial reporting outside of North America. Automated and manual business process controls that are dependent on the affected ITGCs were also deemed ineffective because they could have been adversely affected to the extent that they rely upon information and configurations from the affected systems.

Remediation Activities

Management has been actively engaged in remediating the deficiencies described above. The following remedial actions were taken during the nine months ended September 30, 2024:

•Evaluated the design of ITGCs that have been implemented by an outsourced provider, and

•Implemented enhanced procedures related to security access controls over the Company’s enterprise resource planning (“ERP”) system.

Management believes that these actions will remediate the material weakness; however, the material weakness will not be considered remediated until management has concluded that these controls are operating effectively.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting during the three months ended September 30, 2024 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.