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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
Rakuten Investment Management, Inc.16,555$9.22M0.02%+1,734+11.7%Added
JustInvest LLC16,376$9.20M0.09%+434+2.7%Added
B. Metzler seel. Sohn & Co. AG16,242$9.13M0.08%−134−0.8%Reduced
CWM Advisors, LLC15,972$8.97M0.52%+3,471+27.8%Added
Truist Financial Corp15,949$8.96M0.01%−4,649−22.6%Reduced
FORA Capital, LLC15,925$8.95M0.66%+15,925New
iA Global Asset Management Inc.15,828$8.89M0.13%+777+5.2%Added
Jacobson & Schmitt Advisors, LLC15,366$8.63M1.57%−4,918−24.2%Reduced
GWM Advisors LLC15,221$8.55M0.03%+5,761+60.9%Added
Flputnam Investment Management Co15,219$8.55M0.13%−201−1.3%Reduced
US Bancorp15,200$8.54M0.01%−302−1.9%Reduced
Glenmede Trust Co NA15,104$8.49M0.04%−2,797−15.6%Reduced
Chilton Investment Co LLC15,027$8.44M0.20%−33−0.2%Reduced
Schonfeld Strategic Advisors LLC15,003$8.43M0.07%+15,003New
Parkman Healthcare Partners LLC15,000$8.43M0.87%+15,000New
Jane Street Group, LLC14,998$8.43M0.01%+5,984+66.4%Added
Nicola Wealth Management Ltd.14,800$8.32M1.00%00.0%Unchanged
Sanctuary Advisors, LLC14,364$8.07M0.04%+1,628+12.8%Added
Great Diamond Partners, LLC14,346$8.06M1.55%−25−0.2%Reduced
Cardinal Capital Management14,107$7.93M1.02%−9−0.1%Reduced
Susquehanna International Group, LLP14,061$7.90M0.01%−6,003−29.9%Reduced
Commonwealth Equity Services, LLC13,808$7.76M0.01%+87+0.6%Added
Y-Intercept (Hong Kong) Ltd13,665$7.68M0.15%+8,181+149.2%Added
PensionDanmark Pensionsforsikringsaktieselskab13,580$7.63M0.07%−490−3.5%Reduced
Lazard Asset Management LLC13,539$7.61M0.01%−857−6.0%Reduced
Capital International Inc13,507$7.59M0.06%+13,507New
Silvant Capital Management LLC13,248$7.44M0.26%+213+1.6%Added
Middleton & Co Inc13,156$7.39M0.84%+21+0.2%Added
Capitolis Liquid Global Markets LLC13,147$7.39M0.05%+13,147New
Moran Wealth Management, LLC13,128$7.38M0.23%+585+4.7%Added
Elyxium Wealth, LLC12,971$7.29M2.34%−5,406,536−99.8%Reduced
Utah Retirement Systems12,948$7.28M0.07%−371−2.8%Reduced
Public Sector Pension Investment Board12,915$7.26M0.02%+2,485+23.8%Added
Kornitzer Capital Management Inc12,719$7.15M0.15%−4,025−24.0%Reduced
Northstar Asset Management Inc12,694$7.13M2.19%−3,591−22.1%Reduced
Janney Montgomery Scott LLC12,422$6.98M0.02%+211+1.7%Added
STRS Ohio12,206$6.86M0.03%−20.0%Reduced
Police & Firemen's Retirement System of New Jersey12,192$6.85M0.06%+24+0.2%Added
Haven Capital Group, Inc.12,137$6.82M6.33%00.0%Unchanged
Omers Administration Corp12,011$6.75M0.04%+5,628+88.2%Added
Sumitomo Mitsui DS Asset Management Company, Ltd11,950$6.71M0.05%+172+1.5%Added
New York Life Investment Management LLC11,877$6.67M0.06%+287+2.5%Added
Advisors Capital Management, LLC11,870$6.67M0.08%+4,233+55.4%Added
WoodTrust Financial Corp11,691$6.57M0.85%−457−3.8%Reduced
Elo Mutual Pension Insurance Co11,572$6.50M0.11%−92−0.8%Reduced
Integrated Wealth Concepts LLC11,339$6.37M0.05%+10,966+2,939.9%Added
Long Road Investment Counsel, LLC11,307$6.35M2.49%00.0%Unchanged
Bank of Nova Scotia11,124$6.25M0.01%−1,383−11.1%Reduced
Wendell David Associates Inc11,068$6.22M0.68%−1,245−10.1%Reduced
British Columbia Investment Management Corp11,006$6.18M0.04%−3,168−22.4%Reduced
Ethic Inc.10,942$6.15M0.10%−957−8.0%Reduced
Janus Henderson Group PLC10,790$6.06M0.00%−1,749−13.9%Reduced
Yousif Capital Management, LLC10,749$6.04M0.07%−104−1.0%Reduced
Vident Advisory, LLC10,677$6.00M0.05%+7,466+232.5%Added
Boston Trust Walden Corp10,645$5.98M0.05%+10,645New
SG Americas Securities, LLC10,631$5.97M0.01%−32,794−75.5%Reduced
Blue Zone Wealth Advisors, LLC10,617$5.97M1.21%−1,050−9.0%Reduced
Fideuram Asset Management (Ireland) dac9,310$5.92M0.76%+8,303+824.5%Added
Pittenger & Anderson Inc10,402$5.84M0.23%−89−0.8%Reduced
Tandem Investment Advisors, Inc.10,376$5.83M0.29%−1,009−8.9%Reduced
Bridgewater Associates, LP10,314$5.80M0.03%+4,156+67.5%Added
WSFS Capital Management, LLC10,268$5.77M0.28%−68−0.7%Reduced
Aptus Capital Advisors, LLC10,097$5.67M0.05%−2,123−17.4%Reduced
Atria Investments LLC10,043$5.64M0.06%−750−6.9%Reduced
Algert Global LLC9,945$5.59M0.08%+925+10.3%Added
Anderson Hoagland & Co9,897$5.56M0.48%00.0%Unchanged
Howe & Rusling Inc9,815$5.52M0.36%+172+1.8%Added
Crossmark Global Holdings, Inc.9,794$5.50M0.08%+298+3.1%Added
Integrated Advisors Network LLC9,792$5.50M0.29%+9,454+2,797.0%Added
Impax Asset Management Group plc9,789$5.50M0.04%+1,143+13.2%Added
Wealth Enhancement Advisory Services, LLC9,654$5.50M0.01%−16,040−62.4%Reduced
Perkins Capital Management Inc9,700$5.45M5.11%00.0%Unchanged
Ilmarinen Mutual Pension Insurance Co9,700$5.45M0.04%−900−8.5%Reduced
Crystal Rock Capital Management9,525$5.35M3.18%−355−3.6%Reduced
Brant Point Investment Management LLC9,431$5.30M1.46%−453−4.6%Reduced
Azzad Asset Management Inc9,401$5.28M0.53%00.0%Unchanged
Mercer Global Advisors Inc9,386$5.27M0.01%+2,040+27.8%Added
Macquarie Group Ltd9,342$5.25M0.03%−7,511−44.6%Reduced
Shelton Capital Management9,322$5.24M0.11%−218−2.3%Reduced
Louisiana State Employees Retirement System9,300$5.23M0.09%−100−1.1%Reduced
Pinebridge Investments LLC9,285$5.22M0.04%−9,186−49.7%Reduced
Hantz Financial Services, Inc.9,267$5.21M0.08%−17,350−65.2%Reduced
Banque Cantonale Vaudoise9,213$5.18M0.19%+3,247+54.4%Added
Landscape Capital Management, L.L.C.9,194$5.17M0.33%+2,915+46.4%Added
UniSuper Management Pty Ltd9,191$5.16M0.03%+1,972+27.3%Added
Oregon Public Employees Retirement Fund9,146$5.14M0.07%−11−0.1%Reduced
Commerce Bank9,007$5.06M0.02%+1,201+15.4%Added
TD Waterhouse Canada Inc.8,733$4.92M0.01%+8,303+1,930.9%Added
Ritholtz Wealth Management8,643$4.86M0.08%−531−5.8%Reduced
Brinker Capital Investments, LLC8,456$4.75M0.04%−1,785−17.4%Reduced
Employees Retirement System of Texas8,406$4.72M0.04%00.0%Unchanged
LaFleur & Godfrey LLC8,360$4.70M0.58%−121−1.4%Reduced
Tudor Investment Corp Et Al8,342$4.69M0.03%+8,342New
NLB Skladi, upravljanje premozenja, d.o.o.8,252$4.64M0.22%+1,901+29.9%Added
Linden Thomas Advisory Services, LLC8,000$4.50M0.43%+144+1.8%Added
State of Alaska, Department of Revenue7,900$4.44M0.05%00.0%Unchanged
Motley Fool Asset Management LLC7,822$4.40M0.19%−840−9.7%Reduced
Campbell & CO Investment Adviser LLC7,772$4.37M0.25%+6,534+527.8%Added
Generali Asset Management SPA SGR7,737$4.35M0.09%+945+13.9%Added
Norinchukin Bank, The7,718$4.34M0.05%+274+3.7%Added