Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures. Our management, including the Chief Executive Officer and the Chief Financial Officer, performed an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended) as of June 30, 2023. Based on their evaluation, the Chief Executive Officer and Chief Financial Officer have concluded as of June 30, 2023 that our disclosure controls and procedures are designed at a reasonable assurance level and effective in providing reasonable assurance that the information we are required to disclose in the reports we file or submit under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized, and reported within the time periods specified in the Securities and Exchange Commission's rules and forms, and that such information is accumulated and communicated to our management, including the Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

Changes in Internal Control Over Financial Reporting. There have been no changes in our internal control over financial reporting during the quarter ended June 30, 2023 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Part II. Other Information

Item 1. Legal Proceedings

We are reviewing and investigating whether business activities in Japan and other markets violate certain provisions of the Foreign Corrupt Practices Act ("FCPA"). We voluntarily notified the United States Securities and Exchange Commission ("SEC") and the United States Department of Justice ("DOJ") during 2021 that we have engaged outside counsel to conduct this review and investigation. We have provided status updates to the SEC and DOJ since that time. Any determination that our operations or activities are not in compliance with existing laws, including the FCPA, could result in the imposition of fines, penalties, and equitable remedies. We cannot currently predict the outcome of the review and investigation or the potential impact on our financial statements.

On September 28, 2021, Aortic Innovations LLC, a non-practicing entity, filed a lawsuit against Edwards Lifesciences Corporation and certain of its subsidiaries (“Edwards”) in the United States District Court for the District of Delaware alleging that Edwards’ SAPIEN 3 Ultra product infringes certain of its patents. We are unable to predict the ultimate outcome of this matter or estimate a range of possible exposure; therefore, no amount has been accrued. We intend to vigorously defend ourselves in this litigation.

We are subject to various environmental laws and regulations both within and outside of the United States. Our operations, like those of other medical device companies, involve the use of substances regulated under environmental laws, primarily in manufacturing and sterilization processes. While it is difficult to quantify the potential impact of continuing compliance with environmental protection laws, management believes that such compliance will not have a material impact on our financial results. Our threshold for disclosing material environmental legal proceedings involving a governmental authority where potential monetary sanctions are involved is $1 million.