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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, Q4 2025

Institutional positions in IDEXX Laboratories Inc as of Dec 31, 2025. 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
1,385
+111 vs. Q3 2025
Shares held
82.4M
+10.5M (+14.6%) vs. Q3 2025
Total value
$50.3B
+$4.35B (+9.5%) vs. Q3 2025
New holders
191
482 more added
Sold out
80
481 more reduced

28 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 1,385 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 heldQ4 2025: $50.3B
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, Q4 2025

Shares, value and share of portfolio for each institution holding IDEXX Laboratories Inc; share changes are against Q3 2025.

Institutions holding IDXX in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Index Fund Advisors, Inc.329$222.6K0.01%+1+0.3%Added
Ewa, LLC329$222.6K0.05%+329New
Lantern Wealth Advisors, LLC330$223.3K0.12%−50−13.2%Reduced
Advisory Alpha, LLC331$223.9K0.01%−34−9.3%Reduced
YANKCOM Partnership331$223.9K0.10%+66+24.9%Added
Ponta Wealth Partners, LLC333$225.3K0.21%+333New
Twelve Points Wealth Management LLC320$228.3K0.05%00.0%Unchanged
Integrated Advisors Network LLC338$228.7K0.01%−138−29.0%Reduced
Beese Fulmer Investment Management, Inc.340$230.0K0.01%+340New
Occudo Quantitative Strategies LP341$230.7K0.02%−8,189−96.0%Reduced
Wrapmanager Inc341$230.7K0.08%00.0%Unchanged
Haverford Trust Co341$230.7K0.00%+3+0.9%Added
JGP Global Gestao de Recursos Ltda.342$231.4K0.14%−35−9.3%Reduced
AlphaCore Capital LLC343$232.1K0.01%+343New
Baldwin Brothers Inc347$234.8K0.02%00.0%Unchanged
Waterloo Capital, L.P.348$235.4K0.02%−10−2.8%Reduced
SeaCrest Wealth Management, LLC330$235.8K0.02%−10−2.9%Reduced
First Interstate Bank350$236.8K0.01%00.0%Unchanged
Wallace Capital Management Inc.350$236.8K0.03%00.0%Unchanged
Marex Group plc350$236.8K0.00%+350New
Dynasty Wealth Management, LLC350$236.9K0.00%+350New
Gen-Wealth Partners Inc355$240.2K0.08%−106−23.0%Reduced
Alexander Labrunerie & Co., Inc.358$242.2K0.09%00.0%Unchanged
Advyzon Investment Management, LLC359$242.9K0.03%−11−3.0%Reduced
Financiere des Professionnels - Fonds d,investissement inc.360$243.6K0.01%00.0%Unchanged
Eventide Asset Management, LLC358$244.2K0.00%+358New
HCR Wealth Advisors362$244.9K0.02%00.0%Unchanged
Harrell Investment Partners, LLC363$245.6K0.06%00.0%Unchanged
Lester Murray Antman dba SimplyRich364$246.0K0.06%00.0%Unchanged
New World Advisors LLC366$247.6K0.04%+1+0.3%Added
Coyle Financial Counsel LLC366$247.6K0.05%+366New
TruWealth Advisors, LLC368$249.0K0.01%00.0%Unchanged
Stirlingshire Investments, Inc.369$249.6K0.22%+369New
Camden Capital, LLC369$249.8K0.02%+26+7.6%Added
West Family Investments, Inc.370$250.3K0.06%00.0%Unchanged
Capital Performance Advisors LLP370$250.3K0.02%+370New
Clark Capital Management Group, Inc.371$251.0K0.00%+371New
Integrated Wealth Concepts LLC373$252.5K0.00%−12,730−97.2%Reduced
Meiji Yasuda Asset Management Co Ltd.374$253.0K0.01%−75−16.7%Reduced
Connecticut Wealth Management, LLC374$253.0K0.01%+374New
JMN Financial LLC374$253.0K0.25%+374New
Financial Engines Advisors L.L.C.375$253.7K0.00%−186−33.2%Reduced
Keating Financial Advisory Services, Inc.375$253.7K0.03%+375New
KCM Investment Advisors LLC377$255.1K0.01%+19+5.3%Added
Bragg Financial Advisors, Inc382$258.4K0.01%00.0%Unchanged
Versant Capital Management, Inc386$261.1K0.03%−183−32.2%Reduced
Lantz Financial LLC386$261.1K0.06%+5+1.3%Added
Nicholas Hoffman & Company, LLC.387$261.8K0.01%−11−2.8%Reduced
Harbor Investment Advisory, LLC388$262.5K0.02%+25+6.9%Added
Keudell/Morrison Wealth Management392$265.2K0.06%+392New
Sapient Capital LLC389$265.4K0.00%+389New
Fukoku Mutual Life Insurance Co395$267.2K0.02%−10−2.5%Reduced
Rehmann Capital Advisory Group396$267.9K0.01%−10−2.5%Reduced
L2 Asset Management, LLC399$269.9K0.04%+25+6.7%Added
Stance Capital LLC400$270.6K0.10%−6,587−94.3%Reduced
Puzo Michael J400$270.6K0.07%00.0%Unchanged
Genesis Wealth Advisors, LLC400$270.6K0.19%00.0%Unchanged
Livforsakringsbolaget Skandia, Omsesidigt400$270.6K0.01%00.0%Unchanged
Westmount Partners, LLC400$270.6K0.07%00.0%Unchanged
ADAR1 Capital Management, LLC400$270.6K0.02%+400New
Zions Bancorporation, National Association401$271.3K0.01%+56+16.2%Added
PTM Wealth Management, LLC400$272.9K0.15%00.0%Unchanged
TownSquare Capital, LLC404$273.3K0.06%−110−21.4%Reduced
HTG Investment Advisors, Inc.404$273.3K0.08%00.0%Unchanged
RIA Advisory Group LLC405$274.0K0.07%−1−0.2%Reduced
Sovereign Financial Group, Inc.408$276.0K0.05%+9+2.3%Added
Institute for Wealth Management, LLC.409$276.4K0.03%+1+0.2%Added
WealthTrust Axiom LLC409$276.7K0.07%00.0%Unchanged
Heritage Financial Services, LLC409$276.7K0.02%00.0%Unchanged
Massmutual Trust Co FSB411$278.1K0.01%+31+8.2%Added
McAdam, LLC412$278.4K0.01%+36+9.6%Added
Conning Inc.413$279.4K0.01%+15+3.8%Added
Boothbay Fund Management, LLC413$279.4K0.01%+413New
Calamos Wealth Management LLC416$281.4K0.01%+416New
Seven Mile Advisory419$283.5K0.05%−4−0.9%Reduced
Hall Laurie J Trustee420$284.1K0.09%−40−8.7%Reduced
Hennion & Walsh Asset Management, Inc.422$285.5K0.01%+422New
Sowell Financial Services LLC424$286.8K0.01%+30+7.6%Added
Moors & Cabot, Inc.425$287.5K0.01%00.0%Unchanged
Valley Brook Capital Group425$287.5K0.19%00.0%Unchanged
Rockland Trust Co425$287.5K0.01%+18+4.4%Added
Oarsman Capital, Inc.428$289.6K0.04%−47−9.9%Reduced
Integrated Investment Consultants, LLC429$290.2K0.06%−9−2.1%Reduced
TD Waterhouse Canada Inc.430$290.9K0.00%−163−27.5%Reduced
Towarzystwo Funduszy Inwestycyjnych Pzu SA430$290.9K0.07%00.0%Unchanged
Madrona Financial Services, LLC431$291.6K0.06%+10+2.4%Added
SmartHarvest Portfolios, LLC432$292.3K0.10%+432New
Fuller & Thaler Asset Management, Inc.434$293.6K0.00%00.0%Unchanged
Simplicity Wealth,LLC434$293.6K0.02%+60+16.0%Added
Ingalls & Snyder LLC435$294.0K0.01%00.0%Unchanged
Roundview Capital LLC435$294.3K0.02%+435New
Evoke Wealth, LLC436$295.0K0.01%+42+10.7%Added
Samalin Investment Counsel, LLC438$296.1K0.11%−6−1.4%Reduced
LVW Advisors, LLC439$297.0K0.03%+36+8.9%Added
Twin Focus Capital Partners, LLC440$297.7K0.03%00.0%Unchanged
Claret Asset Management Corp442$299.0K0.03%+9+2.1%Added
Mesirow Financial Investment Management, Inc.442$299.0K0.01%−96−17.8%Reduced
LeConte Wealth Management, LLC450$304.4K0.20%+75+20.0%Added
Camden National Bank452$305.8K0.04%+5+1.1%Added
Harris Associates L PSuperinvestorHarris Associates (Oakmark)455$307.8K0.00%00.0%Unchanged