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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
AMF Pensionsforsakring AB2,092$1.18M0.01%00.0%Unchanged
EP Wealth Advisors, LLC2,113$1.19M0.01%−3,504−62.4%Reduced
Kentucky Retirement Systems Insurance Trust Fund2,124$1.19M0.08%00.0%Unchanged
Flagship Harbor Advisors, LLC2,129$1.20M0.05%−65−3.0%Reduced
Clearstead Advisors, LLC2,143$1.20M0.01%−731−25.4%Reduced
Painted Porch Advisors LLC2,150$1.21M0.58%00.0%Unchanged
Bailard, Inc.2,153$1.21M0.03%−889−29.2%Reduced
Tiaa-Cref Individual & Institutional Services, LLC2,165$1.22M0.00%+2,165New
Securian Asset Management, Inc2,168$1.22M0.05%00.0%Unchanged
Brown Brothers Harriman & Co2,178$1.22M0.01%+892+69.4%Added
Valmark Advisers, Inc.2,188$1.23M0.01%+260+13.5%Added
Penobscot Wealth Management2,193$1.23M0.36%−114−4.9%Reduced
Fayez Sarofim & Co2,204$1.24M0.00%−200−8.3%Reduced
MUFG Securities Americas Inc.2,210$1.24M0.08%+59+2.7%Added
China Universal Asset Management Co., Ltd.2,240$1.26M0.10%−20−0.9%Reduced
Voleon Capital Management LP2,292$1.29M0.03%+2,292New
Kames Capital plc2,296$1.29M0.02%−23,772−91.2%Reduced
Live Oak Investment Partners2,302$1.29M0.76%+198+9.4%Added
Jefferies Financial Group Inc.2,303$1.29M0.02%−17,769−88.5%Reduced
Paragon Capital Management Inc2,315$1.30M1.10%−701−23.2%Reduced
Charter Oak Capital Management, LLC2,331$1.31M0.10%−32−1.4%Reduced
Steinberganna Wealth Management2,355$1.32M0.64%+2,355New
Pacific Point Advisors, LLC2,385$1.34M0.71%+5+0.2%Added
Inspire Advisors, LLC2,387$1.34M0.11%+267+12.6%Added
Choate Investment Advisors2,446$1.37M0.03%+34+1.4%Added
Principal Securities, Inc.2,505$1.41M0.02%−36−1.4%Reduced
Private Advisor Group, LLC2,506$1.41M0.01%+712+39.7%Added
Genus Capital Management Inc.2,522$1.42M0.16%−9,480−79.0%Reduced
Lombard Odier Asset Management (Switzerland) SA2,537$1.43M0.05%+2,537New
Park Avenue Securities LLC2,547$1.43M0.01%−35−1.4%Reduced
Northwestern Mutual Investment Management Company, LLC2,555$1.44M0.02%+3+0.1%Added
WealthShield Partners, LLC2,606$1.46M0.16%−35−1.3%Reduced
Farther Finance Advisors, LLC2,593$1.46M0.01%−690−21.0%Reduced
Grantham, Mayo, Van Otterloo & Co. LLC2,613$1.47M0.00%+623+31.3%Added
North Dakota State Investment Board2,623$1.47M0.06%−477−15.4%Reduced
Parallel Advisors, LLC2,664$1.50M0.03%−33−1.2%Reduced
Kovack Advisors, Inc.2,652$1.50M0.08%−229−7.9%Reduced
Titan Investment Management LLC2,667$1.50M1.32%+191+7.7%Added
Cresset Asset Management, LLC2,718$1.53M0.01%+346+14.6%Added
Virtus Investment Advisers, Inc.2,731$1.53M0.42%−276−9.2%Reduced
Advisors Asset Management, Inc.2,744$1.54M0.03%+142+5.5%Added
Northwestern Mutual Wealth Management Co2,749$1.54M0.00%+293+11.9%Added
Gsa Capital Partners LLP2,801$1.57M0.10%+2,801New
Davenport & Co LLC2,811$1.58M0.01%−522−15.7%Reduced
Horizon Investments, LLC2,830$1.59M0.02%+406+16.7%Added
QRG Capital Management, Inc.2,846$1.60M0.02%+350+14.0%Added
Empirical Finance, LLC2,853$1.60M0.08%−6−0.2%Reduced
Ofi Invest Asset Management3,007$1.62M0.02%+1,754+140.0%Added
Kestra Advisory Services, LLC2,896$1.63M0.01%−493−14.5%Reduced
D.A. Davidson & Co.2,923$1.64M0.01%+815+38.7%Added
Eads & Heald Wealth Management2,924$1.64M0.82%+101+3.6%Added
Laird Norton Trust Company, LLC2,941$1.65M0.04%−14−0.5%Reduced
Saudi Central Bank2,947$1.66M0.04%+2,947New
GKV Capital Management Co., Inc.2,950$1.66M0.62%00.0%Unchanged
Banco Santander, S.A.2,951$1.66M0.01%+2,951New
Axq Capital, LP2,960$1.66M0.21%+2,960New
Archford Capital Strategies, LLC2,961$1.66M0.19%+2,961New
Oppenheimer & Co Inc2,962$1.66M0.02%−290−8.9%Reduced
Bokf, NA2,969$1.67M0.03%+599+25.3%Added
Lincoln Capital LLC2,990$1.68M0.32%−37−1.2%Reduced
Atlantic Union Bankshares Corp2,999$1.69M0.03%+6+0.2%Added
Platinum Investment Management Ltd3,000$1.69M0.42%00.0%Unchanged
Mariner, LLC3,016$1.69M0.00%−11,475−79.2%Reduced
Wedbush Securities Inc3,037$1.71M0.05%+1,205+65.8%Added
Erste Asset Management GmbH3,092$1.72M0.02%−13,465−81.3%Reduced
GAMMA Investing LLC3,068$1.72M0.08%+77+2.6%Added
Plato Investment Management Ltd3,089$1.74M0.12%00.0%Unchanged
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main3,109$1.75M0.00%−10,437−77.0%Reduced
Stock Yards Bank & Trust Co3,135$1.76M0.05%00.0%Unchanged
Steward Partners Investment Advisory, LLC3,157$1.77M0.01%−600−16.0%Reduced
Warren Averett Asset Management, LLC3,168$1.78M0.01%+144+4.8%Added
Aries Wealth Management3,189$1.79M0.39%+12+0.4%Added
Wedmont Private Capital3,074$1.82M0.06%+108+3.6%Added
La Banque Postale Asset Management SA3,246$1.82M0.02%+3,246New
MUFG Securities EMEA plc3,274$1.84M0.03%00.0%Unchanged
Sterling Capital Management LLC3,293$1.85M0.04%−1,779−35.1%Reduced
Stephens Inc3,295$1.85M0.02%−141−4.1%Reduced
Procyon Private Wealth Partners, LLC3,296$1.85M0.09%+391+13.5%Added
PKO Investment Management Joint-Stock Co3,300$1.85M0.16%+200+6.5%Added
Taproot Management LP3,321$1.87M0.35%−5,360−61.7%Reduced
Portside Wealth Group, LLC3,328$1.87M0.25%−1,469−30.6%Reduced
E Fund Management Co., Ltd.3,365$1.89M0.06%+3,365New
Meyer Handelman Co3,369$1.89M0.06%00.0%Unchanged
Wealthspire Advisors, LLC3,396$1.91M0.01%−1,465−30.1%Reduced
New Age Alpha Advisors, LLC3,410$1.92M0.09%−717−17.4%Reduced
Citadel Investment Advisory, Inc.3,491$1.96M0.94%−191−5.2%Reduced
Union Savings Bank3,500$1.97M0.86%00.0%Unchanged
E. Ohman J:or Asset Management AB3,521$1.98M0.05%00.0%Unchanged
United Capital Financial Advisers, LLC3,567$2.00M0.01%+905+34.0%Added
Jensen Investment Management Inc3,570$2.01M0.04%−10.0%Reduced
AG2R la Mondiale Gestion D'Actifs3,583$2.01M0.09%+132+3.8%Added
Ameritas Investment Partners, Inc.3,592$2.02M0.06%−10−0.3%Reduced
Taylor Frigon Capital Management LLC3,594$2.02M1.15%−24−0.7%Reduced
PEAK6 LLC3,640$2.05M0.06%+858+30.8%Added
Dai-Ichi Life Insurance Company, Ltd3,645$2.05M0.06%+500+15.9%Added
New Mexico Educational Retirement Board3,650$2.05M0.06%00.0%Unchanged
Wimmer Associates 1, LLC3,667$2.06M1.01%00.0%Unchanged
Global X Japan Co., Ltd.3,673$2.06M0.11%+157+4.5%Added
Granite Investment Partners, LLC3,718$2.09M0.13%−60−1.6%Reduced
Perfromance Wealth Partners, LLC3,718$2.09M0.06%+10.0%Added