ABBOTT LABORATORIES

Disclosure Controls and Procedures

Evaluation of disclosure controls and procedures. The Chief Executive Officer, Robert B. Ford, and the Chief Financial Officer, Philip P. Boudreau, evaluated the effectiveness of Abbott Laboratories’ disclosure controls and procedures as of the end of the period covered by this report, and concluded that Abbott Laboratories’ disclosure controls and procedures were effective to ensure that information Abbott is required to disclose in the reports that it files or submits with the Commission under the Securities Exchange Act of 1934 (the Exchange Act) is recorded, processed, summarized and reported, within the time periods specified in the Commission’s rules and forms, and to ensure that information required to be disclosed by Abbott in the reports that it files or submits under the Exchange Act is accumulated and communicated to Abbott’s management, including its principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.

Internal Control Over Financial Reporting

Management’s annual report on internal control over financial reporting. Management’s report on Abbott’s internal control over financial reporting is included on page 77 hereof. The report of Abbott’s independent registered public accounting firm related to their assessment of the effectiveness of internal control over financial reporting is included on page 80 hereof.

Changes in internal control over financial reporting. During the quarter ended December 31, 2025, there were no changes in Abbott’s internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) that have materially affected, or are reasonably likely to materially affect, Abbott’s internal control over financial reporting.