Item 5.03 — Amendments to Articles of Incorporation or Bylaws

Bylaws or charter amended.

; Change in Fiscal Year.Certificate of Incorporation At the 2026 annual meeting of shareholders of IDEXX Laboratories, Inc. (the “Corporation”) held on May 12, 2026 (the “Annual Meeting”), upon the recommendation of the Corporation’s Board of Directors (the “Board”), the Corporation’s shareholders approved amendments to the Corporation’s Amended and Restated Certificate of Incorporation to (i) declassify the Board over a three-year period and provide for the annual election of all directors beginning at the 2029 annual meeting of shareholders and (ii) provide for shareholders owning at least 25% of the shares of the Corporation’s capital stock continuously for at least one year the right to…

Item 5.07 — Submission of Matters to a Vote of Security Holders

Annual meeting / shareholder vote results.

On May 12, 2026, the Corporation held its Annual Meeting. At the Annual Meeting, shareholders considered and voted on the following proposals, each of which is described in more detail in the Proxy Statement: (1) the election of Daniel M. Junius, Lawrence D. Kingsley and Sophie V. Vandebroek, PhD, each as a Class II director, for terms expiring at the 2029 annual meeting of shareholders; (2) the ratification of the appointment of PricewaterhouseCoopers LLP as the Corporation's independent registered accounting firm for the current fiscal year; (3) the approval, on an advisory basis, of the compensation of the Corporation's named executive officers; (4) a proposal to amend the Corporation’s…