IDEXX RETIREMENT AND INCENTIVE SAVINGS PLAN

12 Months Ended

Dec. 31, 2025

Retirement Benefits [Abstract]

IDEXX RETIREMENT AND INCENTIVE SAVINGS PLAN

IDEXX RETIREMENT AND INCENTIVE SAVINGS PLAN

We have established the IDEXX Retirement and Incentive Savings Plan (the “401(k) Plan”). U.S. employees eligible to participate in the 401(k) Plan may contribute specified percentages of their salaries. We match a portion of these contributions, not to exceed 5% of participants’ eligible compensation. We contributed $33.1 million, $31.0 million, and $30.3 million for the years ended December 31, 2025, 2024, and 2023, respectively. In addition, we may make contributions to the 401(k) Plan at the discretion of the Board of Directors. There were no discretionary contributions in 2025, 2024, or 2023.

We have also established defined contribution plans for regional employees in Europe and in Canada. With respect to these plans, our contributions over the past three years have not been material.

Defined Benefit Pension Obligations

Our Swiss defined benefit pension plans (“Swiss Plans”) are government-mandated retirement plans that provide employees with a minimum investment return. As of December 31, 2025, our Swiss Plans had a net unfunded pension obligation of $5.4 million, with a fair value of plan assets of $20.7 million. The investments of the plan assets are measured using a mix of Level 1, Level 2, and Level 3 inputs. For the year ended December 31, 2025, we recognized $1.8 million in expense related to the Swiss Plans. The expense was reflected in cost of revenue, sales & marketing expense, general and administrative expense, and research and development expense, based on employee classification.

Future benefits expected to be paid as of December 31, 2025, are as follows:

(in thousands)	December 31, 2025
2026	$	1,048
2027	$	1,276
2028	$	1,298
2029	$	1,161
2030	$	1,371
2031 through 2035	$	8,089

Executive Deferred Compensation Plan

Under the Executive Plan adopted December 6, 2024, certain employees or independent contractors may elect to defer between 5% and 50% of their annual base salary and between 5% and 100% of their annual bonus, commissions, stock units, or other compensation, unless otherwise specified by the committee administering the Executive Plan. Deferrals of stock units must be made in whole units, with fractional units rounded down to the nearest whole unit before deferral. The Executive Plan is unfunded. The total long-term liability recorded as of December 31, 2025, was $2.2 million.