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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
Mesirow Financial Investment Management, Inc.413$232.1K0.00%−29−6.6%Reduced
Sovereign Financial Group, Inc.413$232.1K0.04%+5+1.2%Added
Insigneo Advisory Services, LLC415$233.2K0.02%−171−29.2%Reduced
Capital Performance Advisors LLP416$233.7K0.02%+46+12.4%Added
LVW Advisors, LLC419$235.4K0.02%−20−4.6%Reduced
Castleview Partners, LLC420$236.0K0.12%−85−16.8%Reduced
McAdam, LLC422$236.8K0.01%+10+2.4%Added
Rockland Trust Co425$238.8K0.01%00.0%Unchanged
Valley Brook Capital Group425$238.8K0.16%00.0%Unchanged
RIA Advisory Group LLC426$239.4K0.06%+21+5.2%Added
L2 Asset Management, LLC427$239.9K0.02%+28+7.0%Added
Samalin Investment Counsel, LLC431$242.0K0.09%−7−1.6%Reduced
Caitong International Asset Management Co., Ltd432$242.7K0.04%+432New
Fuller & Thaler Asset Management, Inc.434$243.9K0.00%00.0%Unchanged
Ingalls & Snyder LLC435$244.0K0.01%00.0%Unchanged
Integrated Investment Consultants, LLC435$244.4K0.05%+6+1.4%Added
Resonant Capital Advisors, LLC436$245.0K0.01%+436New
Roundview Capital LLC437$245.5K0.02%+2+0.5%Added
Trust Point Inc.439$246.7K0.02%+112+34.3%Added
Cauble & Harre Wealth Management, Inc.464$247.7K0.20%00.0%Unchanged
Claret Asset Management Corp442$249.0K0.03%00.0%Unchanged
Journey Strategic Wealth LLC445$250.0K0.01%−77−14.8%Reduced
Journey Retirement Planning & Investment Management LLC446$250.6K0.22%−1,418−76.1%Reduced
Howard Bailey Securities, LLC446$250.6K0.10%−326−42.2%Reduced
Evoke Wealth, LLC446$250.6K0.00%+10+2.3%Added
Main Street Research LLC447$251.2K0.01%+447New
Sowell Financial Services LLC449$252.3K0.01%+25+5.9%Added
Bridges Investment Management Inc451$253.4K0.00%−90−16.6%Reduced
Essential Partners LLC451$253.4K0.09%−7−1.5%Reduced
Camden National Bank452$254.0K0.03%00.0%Unchanged
Net Worth Advisory Group453$254.5K0.05%−57−11.2%Reduced
Strategic Blueprint, LLC455$255.7K0.01%−6−1.3%Reduced
OpenArc Corporate Advisory, LLC457$256.8K0.00%−112−19.7%Reduced
DRW Securities, LLC463$257.1K0.01%+463New
Gerber Kawasaki Wealth & Investment Management461$259.0K0.01%−41−8.2%Reduced
Gabelli Funds LLC465$261.3K0.00%−220−32.1%Reduced
Wallace Advisory Group, LLC465$261.3K0.28%−176−27.5%Reduced
Maple Capital Management, Inc.469$263.5K0.02%−64−12.0%Reduced
Xxi Wealth, LLC471$264.6K0.15%−231−32.9%Reduced
Krilogy Financial LLC465$265.0K0.01%−41−8.1%Reduced
Gryphon Financial Partners LLC472$265.2K0.03%+145+44.3%Added
Bridgefront Capital, LLC476$267.5K0.07%+476New
Marshall Financial Group LLC477$268.0K0.04%−6−1.2%Reduced
Resources Investment Advisors, LLC.479$269.1K0.00%−258−35.0%Reduced
Arlington Capital Management, Inc.479$269.1K0.15%+22+4.8%Added
Harris Associates L PSuperinvestorHarris Associates (Oakmark)482$270.8K0.00%+27+5.9%Added
Verition Fund Management LLC483$271.4K0.00%−251−34.2%Reduced
Dorsey & Whitney Trust CO LLC486$272.9K0.02%+25+5.4%Added
Retirement Planning Group486$272.9K0.01%+486New
Sheets Smith Wealth Management486$273.1K0.03%+25+5.4%Added
LeConte Wealth Management, LLC487$273.6K0.18%+37+8.2%Added
Capital Advisors Inc488$274.2K0.00%−9−1.8%Reduced
Bryn Mawr Trust Co490$275.3K0.01%00.0%Unchanged
Eagle Global Advisors LLC490$275.3K0.01%00.0%Unchanged
Oasis Advisors, LLC490$275.3K0.05%+490New
Seeds Investor LLC472$275.7K0.04%+472New
Acima Private Wealth, LLC493$277.0K0.09%00.0%Unchanged
Claro Advisors LLC498$279.8K0.03%00.0%Unchanged
S&CO Inc500$280.0K0.02%00.0%Unchanged
Cacti Asset Management LLC500$280.9K0.02%00.0%Unchanged
Wealth Quarterback LLC500$280.9K0.11%00.0%Unchanged
Gateway Wealth Partners, LLC501$281.5K0.01%+501New
RMR Wealth Builders505$283.8K0.02%−1−0.2%Reduced
Mutual Advisors, LLC505$283.8K0.01%+29+6.1%Added
Twinbeech Capital LP507$284.9K0.03%+507New
Pinnacle Wealth Planning Services, Inc.508$285.4K0.03%+2+0.4%Added
Kestra Private Wealth Services, LLC510$286.6K0.00%−123−19.4%Reduced
Potomac Fund Management Inc510$286.6K0.01%−7−1.4%Reduced
Beese Fulmer Investment Management, Inc.510$286.6K0.02%+170+50.0%Added
ING Groep NV513$288.3K0.00%−10,978−95.5%Reduced
Northeast Investment Management515$289.4K0.01%00.0%Unchanged
Novem Group516$289.9K0.03%+29+6.0%Added
Montis Financial, LLC516$289.9K0.06%+59+12.9%Added
Symmetry Partners, LLC516$290.0K0.02%−1−0.2%Reduced
Alesco Advisors LLC520$292.2K0.01%+520New
Modern Wealth Management, LLC524$295.9K0.01%+3+0.6%Added
Wellspring Financial Advisors, LLC533$299.5K0.02%00.0%Unchanged
Catalyst Financial Partners LLC533$299.5K0.04%+78+17.1%Added
IFP Advisors, Inc533$299.5K0.01%+270+102.7%Added
Moss Adams Wealth Advisors LLC533$299.5K0.02%−8−1.5%Reduced
Frank, Rimerman Advisors LLC534$300.0K0.02%−461−46.3%Reduced
111 Capital536$301.2K0.07%−430−44.5%Reduced
Lavaca Capital LLC540$303.4K0.06%00.0%Unchanged
Supplemental Annuity Collective Trust of NJ541$304.0K0.09%+541New
Moseley Investment Management Inc545$306.2K0.10%−80−12.8%Reduced
Florida Financial Advisors, LLC545$306.3K0.07%−118−17.8%Reduced
ORG Wealth Partners, LLC547$307.4K0.06%−102−15.7%Reduced
Ipswich Investment Management Co., Inc.547$307.4K0.07%00.0%Unchanged
Dynamic Advisor Solutions LLC548$307.9K0.01%+34+6.6%Added
HighPoint Advisor Group LLC549$308.5K0.01%−2,114−79.4%Reduced
NBT Bank N A549$308.5K0.02%−682−55.4%Reduced
Andina Capital Management, LLC551$309.6K0.27%+551New
Rise Advisors, LLC549$310.0K0.11%+2+0.4%Added
Aft, Forsyth & Company, Inc.552$310.2K0.15%00.0%Unchanged
Premier Path Wealth Partners, LLC554$311.3K0.04%+42+8.2%Added
Simplicity Wealth,LLC556$312.4K0.02%+122+28.1%Added
Essential Planning, LLC.559$314.1K0.10%00.0%Unchanged
Andrew Hill Investment Advisors, Inc.562$316.3K0.28%−9−1.6%Reduced
RM Financial Services, LLC563$316.3K0.27%−362−39.1%Reduced
Mayflower Financial Advisors, LLC570$320.3K0.04%+35+6.5%Added