IDEXX Laboratories 401(k) Plan

The IDEXX Retirement and Incentive Savings Plan is a single-employer 401(k) plan sponsored by IDEXX Laboratories, Inc., covering 8,856 total participants and 8,752 participants with account balances as of year-end 2024. Plan assets totaled approximately $1.24 billion at the end of the 2024 plan year, up from $1.05 billion at the start of the year. The Vanguard Group serves as recordkeeper and Vanguard Fiduciary Trust Company serves as trustee, with Fiducient Advisors LLC providing investment consulting services. The fund menu is composed primarily of Vanguard collective trusts and a small set of Vanguard and Dodge & Cox mutual funds.

Participants: 8,802 Plan assets: $1,243,344,842 Plan number: 001 Form 5500 plan year: 2024 Last verified: Jun 9, 2026 View Form 5500
Match
5% Safe Harbor
Vesting
Immediate 100% vesting on employee deferrals and the employer match; three-year cliff vesting on any discretionary contributions.
Investment Options
26 funds
Auto-Enrollment
New hires are automatically enrolled at a 5% deferral rate within 30 days of hire, with automatic annual increases of 1% up to a maximum of 15%.
Plan Size
$1,243,344,842

By Zac Murphy, CFA charterholder and CFP professional. Published June 9, 2026. Verified against Form 5500 plan year 2024.

Get a personalized look at your IDEXX Laboratories 401(k) options

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Fund lineup

Fund Asset Class Type
D&C Income Fund Class US Bonds Active
Vanguard Explorer Fund US Small Cap Active
Vanguard International Growth Fund Admiral Shares International Equity Active
Vanguard International Value Fund International Equity Active
Vanguard Wellington Fund Admiral Shares Other Active
Vanguard U.S. Growth Fund Admiral Shares US Large Cap Active
Vanguard Windsor II Admiral Shares US Large Cap Active
Vanguard Institutional Total International Stock International Equity Index
Vanguard Target Retirement Income and Growth Trust Target-date Index
Vanguard Target Retirement Income Trust I Target-date Index
Vanguard Retirement 2020 Trust I Target-date Other
Vanguard Retirement 2025 Trust I Target-date Other
Vanguard Retirement 2030 Trust I Target-date Other
Vanguard Retirement 2035 Trust I Target-date Other
Vanguard Retirement 2040 Trust I Target-date Other
Vanguard Retirement 2045 Trust I Target-date Other
Vanguard Retirement 2050 Trust I Target-date Other
Vanguard Retirement 2055 Trust I Target-date Other
Vanguard Retirement 2060 Trust I Target-date Other
Vanguard Retirement 2065 Trust I Target-date Other
Vanguard Retirement 2070 Trust I Target-date Other
Vanguard Retirement Savings Trust III Stable Value Other
Vanguard Institutional 500 Index Trust US Large Cap Index
Vanguard Institutional Extended Market Index Trust US Small Cap Index
Vanguard Institutional Total Bond Market Index Trust US Bonds Index
Vanguard Federal Money Market Fund Money Market Other

Why our allocations use only index funds

The actively managed funds in this plan cost more per year than the plan's index funds, which run roughly 0.02% to 0.06%. Decades of research on long-term active fund performance do not support reliable outperformance net of fees, which is why the allocation ideas below may consider using only the low-cost index options.

Employer match

Match summary
100% match on the first 5% of eligible pay
Match cap 100% of pay
Effective match rate 5%
Vesting Immediate 100% vesting on employee deferrals and the employer match; three-year cliff vesting on any discretionary contributions.
Waiting period Eligible to participate on the first day of the calendar month following one month of service; matching contributions be
$
Contribute this much to capture the full match
100% of your eligible pay, every paycheck.

100% match on the first 5% of eligible pay Contributing less than 100% of your eligible pay leaves part of IDEXX Laboratories's match unclaimed.

What the match is worth at your pay After 1 year of service, contributing 100%
Annual pay Your contribution Employer match Total to 401(k)

Estimates assume a constant salary and the match formula shown above. Your actual match depends on your plan's exact terms.

The cost of contributing only --%

On a $60,000 salary, contributing just half the match threshold would leave about -- in employer match unclaimed each year. Invested over 20 years at a hypothetical 7% annual return, that forgone match could have grown to roughly -- (a hypothetical illustration, not a projection). The match is the highest-return contribution you will make all year.

Sources

  • Plan metadata (employer, participants, assets, plan year): Form 5500 annual return/report, plan year 2024 -- view filing
  • Summary Plan Description (SPD) and fee disclosure (404a-5), where available from the plan administrator.

This page is for educational purposes only and does not constitute investment, tax, or legal advice, nor a recommendation to buy or sell any security. Information is drawn from public Form 5500 filings and plan documents and may be incomplete or out of date. You may consider consulting a qualified professional and confirming all details with your plan administrator before making decisions. Waterfall Planning is not affiliated with IDEXX Laboratories.

Find your risk profile

Answer 13 questions to see which allocation fits your situation.

Question 1 of 13

Risk assessment methodology based on Grable, J. E., & Lytton, R. H. (1999). Financial risk tolerance revisited: The development of a risk assessment instrument. Financial Services Review, 8, 163-181.

Allocation ideas

Five sample mixes built from this plan's funds, from conservative to growth. Take the assessment above to see which one fits your risk profile.

Recommended for you (based on your risk profile)
Conservative
Conservative

Capital preservation with minimal market exposure, built from bonds and stable value.

US equity   International   Bonds   Stable value
Vanguard Institutional Total Bond Market Index Trust 70%
Vanguard Retirement Savings Trust III 30%
0% stocks / 100% bonds
Recommended for you (based on your risk profile)
Income & A Little Growth
Income & A Little Growth

Mostly bonds with a small stock sleeve for modest growth.

US equity   International   Bonds   Stable value
Vanguard Institutional Total Bond Market Index Trust 49%
Vanguard Retirement Savings Trust III 21%
Vanguard Institutional 500 Index Trust 19%
Vanguard Institutional Total International Stock 8%
Vanguard Institutional Extended Market Index Trust 3%
30% stocks / 70% bonds
Recommended for you (based on your risk profile)
Balanced
Balanced

A classic 60/40 split of stocks and bonds.

US equity   International   Bonds   Stable value
Vanguard Institutional 500 Index Trust 39%
Vanguard Institutional Total Bond Market Index Trust 28%
Vanguard Institutional Total International Stock 15%
Vanguard Retirement Savings Trust III 12%
Vanguard Institutional Extended Market Index Trust 6%
60% stocks / 40% bonds
Recommended for you (based on your risk profile)
Growth & Income
Growth & Income

Stock-heavy with a bond cushion for a long horizon.

US equity   International   Bonds   Stable value
Vanguard Institutional 500 Index Trust 52%
Vanguard Institutional Total International Stock 20%
Vanguard Institutional Total Bond Market Index Trust 14%
Vanguard Institutional Extended Market Index Trust 8%
Vanguard Retirement Savings Trust III 6%
80% stocks / 20% bonds
Recommended for you (based on your risk profile)
Growth
Growth

All stocks for maximum long-term growth potential, with higher short-term volatility.

US equity   International   Bonds   Stable value
Vanguard Institutional 500 Index Trust 65%
Vanguard Institutional Total International Stock 25%
Vanguard Institutional Extended Market Index Trust 10%
100% stocks / 0% bonds
Stay on track

Get a plain-English breakdown of your plan

Occasional, no-jargon guidance on getting the most from your workplace retirement plan.

  • What your match is really worth
  • How to keep costs low with index funds
  • Plan updates when your filing changes

We send only what's useful. No advisor pitches, no data sales.

These allocation ideas are educational illustrations built from this plan's available funds and a standard risk-tolerance assessment. They are not personalized investment advice or a recommendation, and risk tolerance is only one factor in an investment decision. You may consider consulting a qualified professional before making changes to your account.