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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, Q2 2025

Institutional positions in IDEXX Laboratories Inc as of Jun 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
1,234
+104 vs. Q1 2025
Shares held
74.5M
+503.9K (+0.7%) vs. Q1 2025
Total value
$40.0B
+$8.90B (+28.6%) vs. Q1 2025
New holders
198
425 more added
Sold out
94
419 more reduced

13 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2025: 1,234 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 heldQ2 2025: $40.0B
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, Q2 2025

Shares, value and share of portfolio for each institution holding IDEXX Laboratories Inc; share changes are against Q1 2025.

Institutions holding IDXX in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Mediolanum International Funds Ltd33,852$18.0M0.22%−1,915−5.4%Reduced
Handelsbanken Fonder AB33,479$18.0M0.06%−2,572−7.1%Reduced
Parnassus Investments33,237$17.8M0.04%−3,416−9.3%Reduced
Teacher Retirement System of Texas33,122$17.8M0.07%−31,078−48.4%Reduced
Forsta Ap-Fonden33,000$17.7M0.12%00.0%Unchanged
Brasada Capital Management, LP32,179$17.6M2.99%−658−2.0%Reduced
Lountzis Asset Management, LLC32,708$17.5M6.18%+120.0%Added
Hantz Financial Services, Inc.32,641$17.5M0.28%+24,633+307.6%Added
Mirae Asset Global Investments Co., Ltd.32,304$17.3M0.06%−1,173−3.5%Reduced
HighTower Advisors, LLC31,978$17.2M0.02%+2,349+7.9%Added
RMB Capital Management, LLC31,645$17.0M0.32%+22,122+232.3%Added
Bourne Lent Asset Management Inc31,597$16.9M6.56%−205−0.6%Reduced
Wilson Asset Management (International) Pty Ltd31,034$16.6M4.09%00.0%Unchanged
Rafferty Asset Management, LLC30,984$16.6M0.05%−6,760−17.9%Reduced
Mn Services Vermogensbeheer B.V.30,260$16.2M0.11%+200+0.7%Added
Vinva Investment Management Ltd29,789$15.8M0.42%−176−0.6%Reduced
Federated Hermes, Inc.29,444$15.8M0.03%−2,313−7.3%Reduced
CIBC Asset Management Inc29,354$15.7M0.05%+2,926+11.1%Added
Creative Planning29,068$15.6M0.01%+3,052+11.7%Added
Bank of Nova Scotia28,335$15.2M0.03%−58,692−67.4%Reduced
Resona Asset Management Co.,Ltd.28,079$15.0M0.07%+1,255+4.7%Added
Boston Family Office LLC27,927$15.0M0.99%−731−2.6%Reduced
Public Employees Retirement System of Ohio27,716$14.9M0.05%+1,041+3.9%Added
Waratah Capital Advisors Ltd.27,709$14.9M1.01%−95,684−77.5%Reduced
State of New Jersey Common Pension Fund D27,451$14.7M0.06%00.0%Unchanged
F/M Investments LLC27,311$14.6M0.53%+133+0.5%Added
BI Asset Management Fondsmaeglerselskab A/S27,181$14.6M0.14%+20,052+281.3%Added
Jacobson & Schmitt Advisors, LLC26,899$14.4M2.56%+1,912+7.7%Added
Truist Financial Corp26,454$14.2M0.02%−322−1.2%Reduced
Wealth Enhancement Advisory Services, LLC25,626$14.0M0.02%+73+0.3%Added
Lansforsakringar Fondforvaltning AB (publ)25,496$13.7M0.08%−1,545−5.7%Reduced
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund25,492$13.7M0.13%+3,700+17.0%Added
Cobblestone Capital Advisors LLC24,823$13.3M0.68%+235+1.0%Added
Quantinno Capital Management LP24,778$13.3M0.06%+5,704+29.9%Added
Woodstock Corp24,378$13.1M1.20%−159−0.6%Reduced
AMF Pensionsforsakring AB24,325$13.0M0.09%+24,325New
MetLife Investment Management24,172$13.0M0.08%−624−2.5%Reduced
Van Eck Associates Corp23,864$12.8M0.01%−1,483−5.9%Reduced
Azimuth Capital Investment Management LLC23,750$12.7M0.47%−423−1.7%Reduced
Arizona State Retirement System23,663$12.7M0.07%−329−1.4%Reduced
Xponance, Inc.23,642$12.7M0.11%+424+1.8%Added
Skandinaviska Enskilda Banken AB (publ)23,335$12.5M0.05%+6,978+42.7%Added
Lyell Wealth Management, LP23,142$12.4M0.98%+677+3.0%Added
HRT Financial LP22,887$12.3M0.05%+20,621+910.0%Added
D. E. Shaw & Co., Inc.22,657$12.2M0.01%−215,577−90.5%Reduced
Envestnet Portfolio Solutions, Inc.22,444$12.0M0.04%+5,795+34.8%Added
Alta Capital Management LLC22,143$11.9M0.68%+1,253+6.0%Added
Kornitzer Capital Management Inc21,644$11.6M0.23%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)21,638$11.6M0.03%−10,537−32.7%Reduced
Jefferies Financial Group Inc.21,638$11.6M0.19%+2,099+10.7%Added
HM Payson & Co21,600$11.6M0.18%−255−1.2%Reduced
Swiss Life Asset Management Ltd21,459$11.5M0.07%−6,737−23.9%Reduced
B. Metzler seel. Sohn & Co. AG21,335$11.4M0.11%+1,017+5.0%Added
Daiwa Securities Group Inc.21,298$11.4M0.04%+2,120+11.1%Added
Cerity Partners LLC21,170$11.4M0.02%+2,540+13.6%Added
Guggenheim Capital LLC21,169$11.4M0.09%+3,577+20.3%Added
Segall Bryant & Hamill, LLC21,086$11.3M0.16%+2,140+11.3%Added
Nissay Asset Management Corp20,778$11.1M0.07%+389+1.9%Added
Progressive Investment Management Corp20,668$11.1M2.82%−243−1.2%Reduced
Cetera Investment Advisers20,643$11.1M0.02%+1,223+6.3%Added
Sumitomo Mitsui DS Asset Management Company, Ltd20,613$11.1M0.10%−92−0.4%Reduced
Marshall Wace, LLP20,000$10.7M0.01%−90,549−81.9%Reduced
Storebrand Asset Management AS19,880$10.7M0.03%+412+2.1%Added
Glenmede Investment Management, LP19,878$10.7M0.05%+19,878New
First Citizens Bank & Trust Co19,851$10.6M0.19%+5,315+36.6%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys19,724$10.6M0.06%+998+5.3%Added
Czech National Bank19,657$10.5M0.08%+850+4.5%Added
Mutual of America Capital Management LLC19,642$10.5M0.11%+212+1.1%Added
Susquehanna International Group, LLP19,587$10.5M0.02%+10,786+122.6%Added
Pathstone Holdings, LLC19,484$10.5M0.04%−1,883−8.8%Reduced
Comerica Bank19,104$10.2M0.04%+2,366+14.1%Added
Northstar Asset Management Inc18,992$10.2M2.82%+27+0.1%Added
Mariner, LLC18,667$10.0M0.01%+3,304+21.5%Added
AustralianSuper Pty Ltd18,452$9.90M0.05%+18,452New
Commonwealth Equity Services, LLC18,305$9.82M0.01%+1,580+9.4%Added
Strategic Global Advisors, LLC18,150$9.73M1.59%+8,623+90.5%Added
GF Fund Management Co. Ltd.18,094$9.70M0.20%+222+1.2%Added
Amalgamated Bank18,026$9.67M0.07%+711+4.1%Added
Tudor Investment Corp Et Al17,927$9.61M0.07%−20,125−52.9%Reduced
Verition Fund Management LLC17,903$9.60M0.06%−44,858−71.5%Reduced
Bath Savings Trust Co17,744$9.52M0.96%−340−1.9%Reduced
IFM Investors Pty Ltd17,443$9.36M0.09%−30.0%Reduced
Retirement Systems of Alabama17,258$9.26M0.03%−339−1.9%Reduced
Fred Alger Management, LLC16,839$9.03M0.04%−1,891−10.1%Reduced
NEOS Investment Management LLC16,452$8.82M0.11%+6,481+65.0%Added
Carderock Capital Management Inc16,446$8.82M2.26%+2,017+14.0%Added
USS Investment Management Ltd16,362$8.77M0.06%−534−3.2%Reduced
Tang Capital Management LLC16,000$8.58M0.43%+11,000+220.0%Added
STRS Ohio15,929$8.54M0.03%+1,929+13.8%Added
Lord, Abbett & Co. LLC15,928$8.54M0.03%+12,795+408.4%Added
Ieq Capital, LLC15,926$8.54M0.05%+3,394+27.1%Added
CIBC World Markets Corp15,876$8.51M0.06%+5,999+60.7%Added
Flputnam Investment Management Co15,709$8.43M0.14%−526−3.2%Reduced
Chilton Investment Co LLC15,583$8.36M0.19%−3,249−17.3%Reduced
DnB Asset Management AS15,338$8.23M0.03%+511+3.4%Added
Great Diamond Partners, LLC15,142$8.12M1.72%+923+6.5%Added
US Bancorp15,115$8.11M0.01%−1,072−6.6%Reduced
OP Asset Management Ltd14,780$7.93M0.12%−98−0.7%Reduced
Integrated Wealth Concepts LLC14,645$7.85M0.08%+4,862+49.7%Added
Erste Asset Management GmbH14,422$7.66M0.06%+4,752+49.1%Added