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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, Q3 2025

Institutional positions in IDEXX Laboratories Inc as of Sep 30, 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
1,302
+88 vs. Q2 2025
Shares held
72.2M
−1.78M (−2.4%) vs. Q2 2025
Total value
$46.1B
+$6.43B (+16.2%) vs. Q2 2025
New holders
162
417 more added
Sold out
74
490 more reduced

20 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2025: 1,302 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 heldQ3 2025: $46.1B
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, Q3 2025

Shares, value and share of portfolio for each institution holding IDEXX Laboratories Inc; share changes are against Q2 2025.

Institutions holding IDXX in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Fox Run Management, L.L.C.2,074$1.33M0.21%−548−20.9%Reduced
Callan Family Office, LLC2,074$1.33M0.04%−412−16.6%Reduced
Winton Group Ltd2,089$1.33M0.05%+2,089New
NorthRock Partners, LLC2,104$1.34M0.02%+198+10.4%Added
China Universal Asset Management Co., Ltd.2,112$1.35M0.11%−454−17.7%Reduced
Kentucky Retirement Systems Insurance Trust Fund2,124$1.36M0.09%−86−3.9%Reduced
Squarepoint Ops LLC2,134$1.36M0.00%−170,467−98.8%Reduced
Diversify Advisory Services, LLC1,888$1.36M0.05%−273−12.6%Reduced
Mairs & Power Inc2,144$1.37M0.01%−80−3.6%Reduced
Painted Porch Advisors LLC2,150$1.37M0.52%00.0%Unchanged
MUFG Securities Americas Inc.2,158$1.38M0.09%+376+21.1%Added
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main2,180$1.39M0.00%−403−15.6%Reduced
Novem Group2,192$1.40M0.17%+37+1.7%Added
Principal Securities, Inc.2,196$1.40M0.02%+118+5.7%Added
Banque Pictet & Cie SA2,200$1.41M0.01%00.0%Unchanged
Wahed Invest LLC2,206$1.41M0.19%+12+0.5%Added
Gibbs Wealth Management2,222$1.42M0.32%−357−13.8%Reduced
Tiaa Trust, National Association2,238$1.43M0.00%+89+4.1%Added
Private Advisor Group, LLC2,245$1.43M0.01%−89−3.8%Reduced
SRS Capital Advisors, Inc.2,253$1.44M0.02%+2,059+1,061.3%Added
Obermeyer Wood Investment Counsel, LLLP2,255$1.44M0.07%−22−1.0%Reduced
Pallas Capital Advisors LLC2,261$1.44M0.05%−73−3.1%Reduced
Park Avenue Securities LLC2,268$1.45M0.01%−202−8.2%Reduced
Northwestern Mutual Wealth Management Co2,271$1.45M0.00%+253+12.5%Added
Siemens Fonds Invest GmbH2,271$1.45M0.08%−2−0.1%Reduced
Citizens Financial Group Inc2,274$1.45M0.02%+666+41.4%Added
Catalytic Wealth RIA, LLC2,290$1.46M0.05%+1,326+137.6%Added
Oddo BHF Asset Management SAS2,294$1.47M0.06%−1,191−34.2%Reduced
Equitable Trust Co2,318$1.48M0.07%−50−2.1%Reduced
Clearstead Advisors, LLC2,318$1.48M0.02%+90+4.0%Added
Tower Research Capital LLC (TRC)2,326$1.49M0.04%+1,187+104.2%Added
Penobscot Wealth Management2,337$1.49M0.48%−551−19.1%Reduced
Sandler Capital Management2,360$1.51M0.55%+2,360New
Charter Oak Capital Management, LLC2,361$1.51M0.12%−597−20.2%Reduced
Choate Investment Advisors2,381$1.52M0.03%+4+0.2%Added
Flagship Harbor Advisors, LLC2,397$1.53M0.07%−83−3.3%Reduced
Fayez Sarofim & Co2,404$1.54M0.00%00.0%Unchanged
Shell Asset Management Co2,416$1.54M0.16%−1,361−36.0%Reduced
Marshall Financial Group LLC2,419$1.55M0.30%+5+0.2%Added
Promus Capital, LLC2,451$1.57M1.00%+46+1.9%Added
Pacific Point Advisors, LLC2,482$1.59M0.93%−1,154−31.7%Reduced
Horizon Investments, LLC2,521$1.61M0.02%−9−0.4%Reduced
Advisors Asset Management, Inc.2,521$1.61M0.03%+75+3.1%Added
Alliance Wealth Advisors, LLC2,531$1.62M0.38%−584−18.7%Reduced
United Capital Financial Advisers, LLC2,535$1.62M0.01%+500+24.6%Added
Northwestern Mutual Investment Management Company, LLC2,550$1.63M0.02%−16−0.6%Reduced
Bailard, Inc.2,563$1.64M0.04%+615+31.6%Added
Dark Forest Capital Management LP2,580$1.65M0.06%−6,819−72.6%Reduced
Parallel Advisors, LLC2,597$1.66M0.03%+28+1.1%Added
PKO Investment Management Joint-Stock Co2,600$1.66M0.14%+1,900+271.4%Added
Cresset Asset Management, LLC2,624$1.68M0.01%+492+23.1%Added
WealthShield Partners, LLC2,646$1.69M0.19%−100−3.6%Reduced
RSM US Wealth Management LLC2,666$1.70M0.02%−21−0.8%Reduced
GWM Advisors LLC2,680$1.71M0.01%+28+1.1%Added
RFG Advisory, LLC2,687$1.72M0.04%−4,089−60.3%Reduced
Engineers Gate Manager LP2,688$1.72M0.02%−28−1.0%Reduced
Bokf, NA2,704$1.73M0.03%−103−3.7%Reduced
GAMMA Investing LLC2,727$1.74M0.10%+292+12.0%Added
Grove Bank & Trust2,734$1.75M0.20%−173−6.0%Reduced
Kovack Advisors, Inc.2,754$1.76M0.17%−30−1.1%Reduced
Tikehau Investment Management2,804$1.79M2.62%−3,096−52.5%Reduced
Eads & Heald Wealth Management2,849$1.82M0.87%+204+7.7%Added
Northwest & Ethical Investments L.P.2,859$1.83M0.04%00.0%Unchanged
Peloton Wealth Strategists2,873$1.84M0.72%−170−5.6%Reduced
Keeler Thomas Management LLC2,880$1.84M0.75%−4−0.1%Reduced
Wedmont Private Capital2,940$1.84M0.07%+51+1.8%Added
Atlantic Union Bankshares Corp2,930$1.87M0.04%+2,930New
Allstate Corp2,937$1.88M0.04%+2,937New
AG2R la Mondiale Gestion D'Actifs3,501$1.88M0.10%00.0%Unchanged
GKV Capital Management Co., Inc.2,950$1.88M0.74%00.0%Unchanged
Empirical Finance, LLC2,980$1.90M0.09%+29+1.0%Added
Abn Amro Investment Solutions2,983$1.91M0.04%−300−9.1%Reduced
Lincoln Capital LLC3,027$1.91M0.36%−3−0.1%Reduced
Brevan Howard Capital Management LP3,030$1.94M0.03%−5,636−65.0%Reduced
Plato Investment Management Ltd3,089$1.96M0.13%00.0%Unchanged
Merit Financial Group, LLC3,076$1.97M0.02%−3−0.1%Reduced
Cura Wealth Advisors, LLC3,081$1.97M0.76%−784−20.3%Reduced
B.O.S.S. Retirement Advisors, LLC3,115$1.99M0.48%−434−12.2%Reduced
Hancock Whitney Corp3,133$2.00M0.04%+240+8.3%Added
Stock Yards Bank & Trust Co3,135$2.00M0.06%00.0%Unchanged
Dai-Ichi Life Insurance Company, Ltd3,145$2.01M0.05%−237−7.0%Reduced
PEAK6 LLC3,191$2.04M0.05%+3,189+159,450.0%Added
Bank of Hawaii3,200$2.04M0.10%00.0%Unchanged
Wolverine Trading, LLC3,245$2.05M0.04%+3,245New
Balyasny Asset Management LLC3,215$2.05M0.00%+3,215New
Virtus Investment Advisers, Inc.3,231$2.06M0.59%+3,231New
Sequoia Financial Advisors, LLC3,237$2.07M0.01%+543+20.2%Added
Aries Wealth Management3,248$2.08M0.49%+76+2.4%Added
Stephens Inc3,287$2.10M0.03%−53−1.6%Reduced
Intech Investment Management LLC3,292$2.10M0.02%+993+43.2%Added
Simplex Trading, LLC3,310$2.11M0.05%+3,310New
Sumitomo Life Insurance Co3,314$2.12M0.07%−40−1.2%Reduced
NewEdge Wealth, LLC2,968$2.14M0.03%−880−22.9%Reduced
Meyer Handelman Co3,369$2.15M0.07%−622−15.6%Reduced
Ameritas Investment Partners, Inc.3,397$2.17M0.07%+3+0.1%Added
Kestra Advisory Services, LLC3,433$2.19M0.01%−14−0.4%Reduced
Farther Finance Advisors, LLC3,465$2.21M0.03%+348+11.2%Added
Paragon Capital Management Inc3,467$2.22M1.66%−179−4.9%Reduced
Platinum Investment Management Ltd3,500$2.24M0.14%00.0%Unchanged
Summit Trail Advisors, LLC3,501$2.24M0.03%+786+29.0%Added