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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
Catalyst Financial Partners LLC455$307.8K0.03%+10+2.2%Added
Montis Financial, LLC457$309.2K0.06%+8+1.8%Added
Arlington Capital Management, Inc.457$309.2K0.19%+35+8.3%Added
Essential Partners LLC458$309.9K0.10%+1+0.2%Added
Sheets Smith Wealth Management461$311.9K0.03%+6+1.3%Added
Strategic Blueprint, LLC461$311.9K0.02%+6+1.3%Added
Dorsey & Whitney Trust CO LLC461$311.9K0.02%+36+8.5%Added
PharVision Advisers, LLC463$313.2K0.16%+463New
Cauble & Harre Wealth Management, Inc.464$313.9K0.26%+464New
Inceptionr LLC471$318.6K0.09%−111−19.1%Reduced
Ashton Thomas Private Wealth, LLC474$320.7K0.01%+82+20.9%Added
CNB Bank474$320.7K0.13%+322+211.8%Added
YHB Investment Advisors, Inc.475$321.4K0.02%00.0%Unchanged
Grunden Financial Advisory, Inc.475$321.4K0.13%00.0%Unchanged
AlphaGrep UK Ltd475$321.4K0.11%+475New
Mutual Advisors, LLC476$322.0K0.01%−1−0.2%Reduced
Advisory Advocates, LLC477$322.7K0.32%+477New
Bridgewater Advisors Inc.465$324.1K0.02%+10+2.2%Added
Unique Wealth, LLC480$324.7K0.05%−68−12.4%Reduced
Plum Street Advisors, LLC482$326.1K0.12%00.0%Unchanged
Marshall Financial Group LLC483$326.8K0.06%−1,936−80.0%Reduced
Novem Group487$329.5K0.04%−1,705−77.8%Reduced
Bryn Mawr Trust Co490$331.5K0.01%00.0%Unchanged
Eagle Global Advisors LLC490$331.5K0.01%00.0%Unchanged
Caisse des Depots Et Consignations491$332.2K0.01%00.0%Unchanged
Acima Private Wealth, LLC493$333.5K0.10%00.0%Unchanged
Capital Advisors Inc497$336.2K0.01%+5+1.0%Added
Claro Advisors LLC498$336.9K0.05%+4+0.8%Added
CMC Financial Group499$337.6K0.60%+30+6.4%Added
S&CO Inc500$338.0K0.02%00.0%Unchanged
Wealth Quarterback LLC500$338.3K0.12%00.0%Unchanged
Strengthening Families & Communities, LLC502$339.6K0.12%00.0%Unchanged
Gerber Kawasaki Wealth & Investment Management502$339.6K0.01%+5+1.0%Added
Castleview Partners, LLC505$341.6K0.17%+4+0.8%Added
Pinnacle Wealth Planning Services, Inc.506$342.3K0.04%−3−0.6%Reduced
RMR Wealth Builders506$342.3K0.03%+506New
Cacti Asset Management LLC500$343.9K0.02%00.0%Unchanged
CWA Asset Management Group, LLC509$344.4K0.01%+17+3.5%Added
Net Worth Advisory Group510$344.9K0.07%+6+1.2%Added
Premier Path Wealth Partners, LLC512$346.4K0.04%+72+16.4%Added
Dynamic Advisor Solutions LLC514$347.7K0.01%−9−1.7%Reduced
Northeast Investment Management515$348.4K0.01%−4−0.8%Reduced
Potomac Fund Management Inc517$349.8K0.01%+113+28.0%Added
Symmetry Partners, LLC517$349.8K0.02%−3−0.6%Reduced
Modern Wealth Management, LLC521$352.5K0.01%+51+10.9%Added
Krilogy Financial LLC506$353.1K0.01%−3,543−87.5%Reduced
Journey Strategic Wealth LLC522$353.1K0.01%−18−3.3%Reduced
Picton Mahoney Asset Management525$355.2K0.00%+525New
Blueshift Asset Management, LLC528$357.2K0.10%+528New
Frec Markets, Inc.531$359.5K0.11%+531New
Maple Capital Management, Inc.533$360.6K0.02%+4+0.8%Added
Wellspring Financial Advisors, LLC533$360.6K0.03%+533New
Mayflower Financial Advisors, LLC535$361.9K0.04%+4+0.8%Added
Main Street Financial Solutions, LLC537$363.3K0.03%−387−41.9%Reduced
Lavaca Capital LLC540$365.3K0.06%00.0%Unchanged
Moss Adams Wealth Advisors LLC541$366.0K0.03%+13+2.5%Added
Bridges Investment Management Inc541$366.0K0.00%+145+36.6%Added
Rise Advisors, LLC547$370.1K0.13%−4−0.7%Reduced
Ipswich Investment Management Co., Inc.547$370.1K0.09%+12+2.2%Added
STF Management LP548$370.7K0.35%−654−54.4%Reduced
Aft, Forsyth & Company, Inc.552$373.4K0.16%00.0%Unchanged
Essential Planning, LLC.559$378.2K0.12%+559New
WBI Investments562$380.1K0.10%+562New
NBT Bank N A1,231$382.9K0.02%+38+3.2%Added
Valeo Financial Advisors, LLC566$382.9K0.01%+137+31.9%Added
Sivia Capital Partners, LLC567$383.6K0.08%−3−0.5%Reduced
OpenArc Corporate Advisory, LLC569$384.9K0.01%+569New
Papp L Roy & Associates570$385.6K0.04%00.0%Unchanged
Checchi Capital Advisers, LLC572$386.6K0.03%−3−0.5%Reduced
Andrew Hill Investment Advisors, Inc.571$386.9K0.29%+75+15.1%Added
Triad Wealth Partners, LLC582$393.7K0.04%−111−16.0%Reduced
Simplify Asset Management Inc.584$395.1K0.01%+104+21.7%Added
Insigneo Advisory Services, LLC586$396.4K0.03%+39+7.1%Added
Optas, LLC588$397.8K0.06%+588New
Southeast Asset Advisors Inc.589$398.5K0.04%−1,214−67.3%Reduced
Great Valley Advisor Group, Inc.599$404.9K0.01%+99+19.8%Added
Garde Capital, Inc.600$405.9K0.02%−5−0.8%Reduced
Aristotle Atlantic Partners, LLC600$405.9K0.02%00.0%Unchanged
Eastern Bank604$408.6K0.01%+535+775.4%Added
Cranbrook Wealth Management, LLC611$413.4K0.08%+240+64.7%Added
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management614$415.4K0.01%+259+73.0%Added
TB Alternative Assets Ltd.615$416.1K0.07%00.0%Unchanged
Daymark Wealth Partners, LLC618$418.1K0.01%+1+0.2%Added
Evolve Private Wealth, LLC620$419.4K0.02%+620New
Moseley Investment Management Inc625$422.8K0.13%00.0%Unchanged
Cyndeo Wealth Partners, LLC628$424.9K0.02%+56+9.8%Added
Keel Point, LLC628$424.9K0.03%−50−7.4%Reduced
Weaver Capital Management LLC631$426.9K0.09%−3−0.5%Reduced
Gilman Hill Asset Management, LLC632$427.6K0.07%+14+2.3%Added
Kestra Private Wealth Services, LLC633$428.2K0.01%−1,088−63.2%Reduced
Meritage Portfolio Management635$429.6K0.03%00.0%Unchanged
Sawgrass Asset Management LLC635$429.6K0.05%00.0%Unchanged
Wallace Advisory Group, LLC641$433.7K0.45%−558−46.5%Reduced
Outlook Wealth Advisors, LLC641$433.7K0.10%−15−2.3%Reduced
Arlington Financial Advisors, LLC644$435.7K0.06%−7−1.1%Reduced
Clark & Stuart, Inc644$435.9K0.30%−110−14.6%Reduced
Prosperity Consulting Group, LLC647$437.7K0.02%+647New
ORG Wealth Partners, LLC649$439.0K0.10%−25−3.7%Reduced
Florida Financial Advisors, LLC663$448.6K0.12%−73−9.9%Reduced
International Assets Investment Management, LLC664$449.2K0.03%−147−18.1%Reduced