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IDEXX Laboratories Inc

IDXX
Exchange
Nasdaq
Industry
In Vitro & In Vivo Diagnostic Substances
SEC CIK
0000874716

In the last 90 days, IDEXX Laboratories Inc insiders filed 0 open-market purchases and 1 sale; 1,306 institutions reported holding it in 13F filings for Q2 2026, worth $39.1B in total; 3 superinvestors hold it, including Fundsmith and Weitz Investment Management.

13F holders, Q1 2026

Institutional positions in IDEXX Laboratories Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,318
−46 vs. Q4 2025
Shares held
73.3M
+1.79M (+2.5%) vs. Q4 2025
Total value
$41.2B
−$1.72B (−4.0%) vs. Q4 2025
New holders
125
435 more added
Sold out
171
517 more reduced

21 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting IDXX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 1,318 institutions
Q1 2021: 1,015 institutionsQ2 2021: 1,037 institutionsQ3 2021: 1,063 institutionsQ4 2021: 1,110 institutionsQ1 2022: 1,036 institutionsQ2 2022: 959 institutionsQ3 2022: 925 institutionsQ4 2022: 1,001 institutionsQ1 2023: 1,058 institutionsQ2 2023: 1,069 institutionsQ3 2023: 1,061 institutionsQ4 2023: 1,155 institutionsQ1 2024: 1,147 institutionsQ2 2024: 1,110 institutionsQ3 2024: 1,117 institutionsQ4 2024: 1,124 institutionsQ1 2025: 1,143 institutionsQ2 2025: 1,234 institutionsQ3 2025: 1,302 institutionsQ4 2025: 1,385 institutionsQ1 2026: 1,318 institutionsQ2 2026: 1,306 institutions
Value heldQ1 2026: $41.2B
Q1 2021: $35.6BQ2 2021: $46.1BQ3 2021: $44.6BQ4 2021: $47.1BQ1 2022: $39.7BQ2 2022: $25.9BQ3 2022: $24.0BQ4 2022: $30.0BQ1 2023: $36.4BQ2 2023: $36.7BQ3 2023: $32.4BQ4 2023: $40.5BQ1 2024: $39.1BQ2 2024: $36.4BQ3 2024: $36.7BQ4 2024: $29.8BQ1 2025: $31.1BQ2 2025: $40.0BQ3 2025: $46.1BQ4 2025: $50.3BQ1 2026: $41.2BQ2 2026: $39.1B
Institutions holding IDXX and their total value by quarter
QuarterHoldersValue
Q2 20261,306$39.1B
Q1 20261,318$41.2B
Q4 20251,385$50.3B
Q3 20251,302$46.1B
Q2 20251,234$40.0B
Q1 20251,143$31.1B
Q4 20241,124$29.8B
Q3 20241,117$36.7B
Q2 20241,110$36.4B
Q1 20241,147$39.1B
Q4 20231,155$40.5B
Q3 20231,061$32.4B
Q2 20231,069$36.7B
Q1 20231,058$36.4B
Q4 20221,001$30.0B
Q3 2022925$24.0B
Q2 2022959$25.9B
Q1 20221,036$39.7B
Q4 20211,110$47.1B
Q3 20211,063$44.6B
Q2 20211,037$46.1B
Q1 20211,015$35.6B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding IDEXX Laboratories Inc; share changes are against Q4 2025.

Institutions holding IDXX in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Papp L Roy & Associates570$320.3K0.04%00.0%Unchanged
Ashton Thomas Private Wealth, LLC571$320.8K0.01%+97+20.5%Added
Great Valley Advisor Group, Inc.580$325.7K0.01%−19−3.2%Reduced
Cyndeo Wealth Partners, LLC581$326.5K0.02%−47−7.5%Reduced
Ieq Capital, LLC588$330.4K0.00%−13,355−95.8%Reduced
Dark Forest Capital Management LP589$331.0K0.03%+589New
Oarsman Capital, Inc.593$333.2K0.04%+165+38.6%Added
Prelude Capital Management, LLC595$334.3K0.03%+595New
Navellier & Associates Inc596$334.9K0.03%−7,199−92.4%Reduced
Eastern Bank596$334.9K0.01%−8−1.3%Reduced
Frec Markets, Inc.597$335.4K0.06%+66+12.4%Added
Fisher Asset Management, LLC599$337.1K0.00%+295+97.0%Added
Weaver Capital Management LLC600$337.1K0.07%−31−4.9%Reduced
Garde Capital, Inc.600$337.1K0.02%00.0%Unchanged
Aristotle Atlantic Partners, LLC600$337.1K0.02%00.0%Unchanged
Triad Wealth Partners, LLC600$337.1K0.03%+18+3.1%Added
Ascent Group, LLC609$342.1K0.01%−112−15.5%Reduced
Cranbrook Wealth Management, LLC611$343.3K0.07%00.0%Unchanged
Evergreen Capital Management LLC615$345.6K0.01%−75−10.9%Reduced
Daymark Wealth Partners, LLC621$348.9K0.01%+3+0.5%Added
Mirabella Financial Services LLP623$350.1K0.03%+623New
Gilbert & Cook, Inc.625$351.2K0.05%−85−12.0%Reduced
CNB Bank625$351.2K0.15%+151+31.9%Added
South Shore Capital Advisors626$351.7K0.26%+626New
Gilman Hill Asset Management, LLC632$355.1K0.05%00.0%Unchanged
Nicolet Bankshares Inc629$355.2K0.01%+629New
Sawgrass Asset Management LLC635$356.8K0.05%00.0%Unchanged
YHB Investment Advisors, Inc.635$356.8K0.03%+160+33.7%Added
Larson Financial Group LLC636$357.4K0.01%−94−12.9%Reduced
Outlook Wealth Advisors, LLC638$358.5K0.09%−3−0.5%Reduced
GTS Securities LLC640$359.6K0.01%−573−47.2%Reduced
Generali Investments, Management Co LLC640$359.6K0.08%−441−40.8%Reduced
Evolve Private Wealth, LLC640$359.6K0.02%+20+3.2%Added
International Assets Investment Management, LLC640$361.4K0.03%−24−3.6%Reduced
Arlington Financial Advisors, LLC644$361.9K0.05%00.0%Unchanged
CX Institutional645$362.0K0.01%−25−3.7%Reduced
Clark & Stuart, Inc644$362.0K0.24%00.0%Unchanged
Exencial Wealth Advisors, LLC652$366.5K0.01%−22−3.3%Reduced
Camden Capital, LLC656$368.7K0.02%+287+77.8%Added
Prosperity Consulting Group, LLC658$369.7K0.02%+11+1.7%Added
Gallacher Capital Management LLC660$370.8K0.14%+660New
First Manhattan Co661$371.4K0.00%−1,510−69.6%Reduced
Ledyard National Bank661$371.4K0.03%−65−9.0%Reduced
Smith Group Asset Management, LLC661$371.4K0.02%−8−1.2%Reduced
Baker Tilly Wealth Management, LLC678$381.0K0.09%−133−16.4%Reduced
Peregrine Asset Advisers, Inc.682$383.2K0.10%00.0%Unchanged
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management692$388.8K0.01%+78+12.7%Added
Trust Co of Virginia693$389.4K0.03%+18+2.7%Added
Picton Mahoney Asset Management694$390.0K0.00%+169+32.2%Added
Versant Capital Management, Inc694$390.0K0.04%+308+79.8%Added
Joel Isaacson & Co., LLC698$392.2K0.01%−125−15.2%Reduced
Beck Mack & Oliver LLC700$393.3K0.01%−180−20.5%Reduced
United Bank700$393.3K0.13%00.0%Unchanged
Prosperity Planning, Inc.700$393.3K0.10%00.0%Unchanged
Checchi Capital Advisers, LLC702$394.2K0.03%+130+22.7%Added
Penobscot Investment Management Company, Inc.705$396.1K0.03%00.0%Unchanged
Patron Partners Advisors, LLC706$396.7K0.18%00.0%Unchanged
PCM Encore, LLC709$398.5K0.08%+17+2.5%Added
Aureus Asset Management, LLC713$400.6K0.03%−42−5.6%Reduced
Brighton Jones LLC716$402.5K0.01%+716New
Waratah Capital Advisors Ltd.718$403.4K0.04%−316−30.6%Reduced
Turtle Creek Wealth Advisors, LLC718$403.4K0.03%−306−29.9%Reduced
Salvus Wealth Management, LLC718$403.4K0.23%+22+3.2%Added
EverSource Wealth Advisors, LLC720$404.6K0.01%+7+1.0%Added
Advyzon Investment Management, LLC722$405.7K0.04%+363+101.1%Added
Pembroke Management, LTD724$406.8K0.06%−33−4.4%Reduced
Centaurus Financial, Inc.725$407.0K0.02%00.0%Unchanged
Cahill Financial Advisors Inc727$408.5K0.04%−1−0.1%Reduced
Stony Point Wealth Management Inc.728$409.1K0.16%−35−4.6%Reduced
Optimize Financial Inc728$409.1K0.20%+59+8.8%Added
Avestar Capital, LLC736$413.6K0.03%−4−0.5%Reduced
S-Bank Fund Management Ltd740$415.8K0.06%−27−3.5%Reduced
Cynosure Management, LLC740$415.8K0.05%+740New
Buckhead Capital Management LLC742$416.9K0.16%+75+11.2%Added
Corient IA LLC745$418.6K0.39%−80−9.7%Reduced
TBH Global Asset Management, LLC745$418.6K0.08%−29−3.7%Reduced
Westpac Banking Corp746$419.2K0.03%−184−19.8%Reduced
Thompson Investment Management, Inc.750$421.4K0.05%00.0%Unchanged
Aviance Capital Partners, LLC750$421.4K0.05%00.0%Unchanged
Alpha Family Trust750$421.4K0.20%00.0%Unchanged
Baron Wealth Management LLC760$427.0K0.13%00.0%Unchanged
Miracle Mile Advisors, LLC764$429.5K0.01%−10−1.3%Reduced
Chesapeake Capital Corp766$430.4K0.31%−223−22.5%Reduced
Cigna Investments Inc767$431.0K0.07%−18−2.3%Reduced
Wall Street Access Asset Management, LLC807$433.1K0.11%−25−3.0%Reduced
Eventide Asset Management, LLC782$435.6K0.01%+424+118.4%Added
Addison Advisors LLC776$436.0K0.10%+3+0.4%Added
Sym Financial Corp777$436.6K0.04%−64−7.6%Reduced
Ashton Thomas Securities, LLC777$436.6K0.05%+1+0.1%Added
Empower Advisory Group, LLC781$438.8K0.00%−559−41.7%Reduced
Kirtland Hills Capital Management, LLC764$441.3K0.14%−189−19.8%Reduced
Conestoga Capital Advisors, LLC790$443.9K0.01%−415−34.4%Reduced
Lipe & Dalton790$444.0K0.23%00.0%Unchanged
Centurion Wealth Management LLC791$444.5K0.10%−13−1.6%Reduced
Destination Wealth Management797$447.8K0.01%+23+3.0%Added
Invictus Private Wealth, LLC800$449.5K0.03%+800New
BancFirst Trust & Investment Management807$449.6K0.20%+807New
B.O.S.S. Retirement Advisors, LLC808$454.0K0.14%−392−32.7%Reduced
Peapack Gladstone Financial Corp823$462.0K0.01%−48−5.5%Reduced
Voya Financial Advisors, Inc.828$462.3K0.05%−80−8.8%Reduced