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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
AXA Investment Managers S.A.32,588$20.8M0.06%+32,588New
Toronto Dominion Bank32,154$20.5M0.04%−4,466−12.2%Reduced
Azimuth Capital Investment Management LLC31,962$20.4M0.73%+8,212+34.6%Added
State of Michigan Retirement System31,955$20.4M0.10%−8,800−21.6%Reduced
Bourne Lent Asset Management Inc31,404$20.1M7.13%−193−0.6%Reduced
Spence Asset Management31,141$19.9M4.16%−14,604−31.9%Reduced
Mn Services Vermogensbeheer B.V.30,660$19.6M0.13%+400+1.3%Added
Oppenheimer Asset Management Inc.30,170$19.3M0.21%−3,458−10.3%Reduced
NEOS Investment Management LLC30,051$19.2M0.14%+13,599+82.7%Added
Brasada Capital Management, LP30,285$19.2M3.26%−1,894−5.9%Reduced
Andra AP-fonden29,900$19.1M0.24%+25,177+533.1%Added
CIBC Asset Management Inc29,544$18.9M0.05%+190+0.6%Added
Public Employees Retirement System of Ohio29,360$18.8M0.06%+1,644+5.9%Added
GW&K Investment Management, LLC29,109$18.6M0.16%−5,572−16.1%Reduced
Hantz Financial Services, Inc.28,765$18.4M0.28%−3,876−11.9%Reduced
State of New Jersey Common Pension Fund D28,308$18.1M0.07%+857+3.1%Added
HighTower Advisors, LLC27,719$17.7M0.02%−4,259−13.3%Reduced
Boston Family Office LLC27,667$17.7M1.12%−260−0.9%Reduced
Citadel Advisors LLC27,576$17.6M0.01%−15,806−36.4%Reduced
Rafferty Asset Management, LLC27,541$17.6M0.06%−3,443−11.1%Reduced
Sumitomo Mitsui DS Asset Management Company, Ltd27,445$17.5M0.14%+6,832+33.1%Added
Kames Capital plc27,315$17.4M0.21%−20,993−43.5%Reduced
F/M Investments LLC27,215$17.4M0.67%−96−0.4%Reduced
Comerica Bank27,132$17.3M0.07%+8,028+42.0%Added
Fred Alger Management, LLC27,075$17.3M0.07%+10,236+60.8%Added
Swiss Life Asset Management Ltd26,540$17.0M0.09%+5,081+23.7%Added
Lansforsakringar Fondforvaltning AB (publ)26,459$16.9M0.09%+963+3.8%Added
AMF Pensionsforsakring AB26,417$16.9M0.11%+2,092+8.6%Added
Resona Asset Management Co.,Ltd.26,384$16.8M0.08%−1,695−6.0%Reduced
Wealth Enhancement Advisory Services, LLC25,778$16.2M0.02%+152+0.6%Added
Cobblestone Capital Advisors LLC24,765$15.8M0.76%−58−0.2%Reduced
Woodstock Corp24,223$15.5M1.34%−155−0.6%Reduced
Van Eck Associates Corp24,101$15.4M0.01%+237+1.0%Added
Arizona State Retirement System23,731$15.2M0.08%+68+0.3%Added
MetLife Investment Management23,686$15.1M0.07%−486−2.0%Reduced
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund23,592$15.1M0.13%−1,900−7.5%Reduced
Xponance, Inc.23,489$15.0M0.12%−153−0.6%Reduced
Lyell Wealth Management, LP23,177$14.8M1.10%+35+0.2%Added
Daiwa Securities Group Inc.23,150$14.8M0.05%+1,852+8.7%Added
Candriam Luxembourg S.C.A.22,975$14.7M0.08%−56,053−70.9%Reduced
Storebrand Asset Management AS22,731$14.5M0.04%+2,851+14.3%Added
Truist Financial Corp22,591$14.4M0.02%−3,863−14.6%Reduced
Man Group plc22,546$14.4M0.03%−37,292−62.3%Reduced
Susquehanna International Group, LLP22,521$14.4M0.02%+2,934+15.0%Added
Cetera Investment Advisers22,434$14.3M0.02%+1,791+8.7%Added
Zurcher Kantonalbank (Zurich Cantonalbank)22,418$14.3M0.03%+780+3.6%Added
HM Payson & Co22,145$14.1M0.20%+545+2.5%Added
O'Shaughnessy Asset Management, LLC21,987$14.0M0.08%+11,813+116.1%Added
Skandinaviska Enskilda Banken AB (publ)21,949$14.0M0.06%−1,386−5.9%Reduced
Cerity Partners LLC21,295$13.6M0.02%+125+0.6%Added
Envestnet Portfolio Solutions, Inc.21,095$13.5M0.05%−1,349−6.0%Reduced
Nissay Asset Management Corp20,984$13.4M0.07%+206+1.0%Added
Keybank National Association20,810$13.3M0.05%+16,825+422.2%Added
First Citizens Bank & Trust Co20,528$13.1M0.28%+677+3.4%Added
Jefferies Financial Group Inc.20,465$13.1M0.12%−1,173−5.4%Reduced
Progressive Investment Management Corp20,460$13.1M3.18%−208−1.0%Reduced
Czech National Bank20,320$13.0M0.09%+663+3.4%Added
Jacobson & Schmitt Advisors, LLC20,105$12.8M2.20%−6,794−25.3%Reduced
Guggenheim Capital LLC19,940$12.7M0.09%−1,229−5.8%Reduced
Pathstone Holdings, LLC19,834$12.7M0.05%+350+1.8%Added
State of Tennessee, Treasury Department19,472$12.4M0.04%−18,839−49.2%Reduced
Mariner, LLC19,303$12.3M0.02%+636+3.4%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys19,212$12.3M0.06%−512−2.6%Reduced
Nicola Wealth Management Ltd.18,800$12.0M1.07%−16,000−46.0%Reduced
Glenmede Investment Management, LP18,754$12.0M0.06%−1,124−5.7%Reduced
Northstar Asset Management Inc18,562$11.9M3.08%−430−2.3%Reduced
Coalescence Partners Investment Management, LP18,559$11.9M3.13%−19,147−50.8%Reduced
GF Fund Management Co. Ltd.18,224$11.6M0.21%+130+0.7%Added
Mutual of America Capital Management LLC18,220$11.6M0.12%−1,422−7.2%Reduced
Amalgamated Bank18,218$11.6M0.08%+192+1.1%Added
Strategic Global Advisors, LLC17,875$11.4M1.73%−275−1.5%Reduced
Achmea Investment Management B.V.17,769$11.4M0.14%+13,537+319.9%Added
Bath Savings Trust Co17,669$11.3M1.12%−75−0.4%Reduced
Commonwealth Equity Services, LLC17,407$11.1M0.01%−898−4.9%Reduced
Retirement Systems of Alabama17,068$10.9M0.04%−190−1.1%Reduced
IFM Investors Pty Ltd17,173$10.9M0.10%−270−1.5%Reduced
Carderock Capital Management Inc16,984$10.9M2.64%+538+3.3%Added
B. Metzler seel. Sohn & Co. AG16,947$10.8M0.10%−4,388−20.6%Reduced
Kornitzer Capital Management Inc16,744$10.7M0.21%−4,900−22.6%Reduced
Advisor Group Holdings, Inc.16,410$10.5M0.01%+3,952+31.7%Added
USS Investment Management Ltd16,362$10.5M0.05%00.0%Unchanged
Tang Capital Management LLC16,000$10.2M0.39%00.0%Unchanged
DnB Asset Management AS15,772$10.1M0.04%+434+2.8%Added
Lazard Asset Management LLC15,547$9.93M0.01%+5,840+60.2%Added
Flputnam Investment Management Co15,476$9.89M0.15%−233−1.5%Reduced
FIL Ltd15,260$9.75M0.01%+14,772+3,027.0%Added
US Bancorp15,259$9.75M0.01%+144+1.0%Added
JustInvest LLC15,184$9.70M0.10%+994+7.0%Added
Chilton Investment Co LLC15,032$9.60M0.20%−551−3.5%Reduced
Ieq Capital, LLC15,031$9.60M0.03%−895−5.6%Reduced
Great Diamond Partners, LLC15,001$9.58M1.86%−141−0.9%Reduced
OP Asset Management Ltd14,963$9.56M0.13%+183+1.2%Added
iA Global Asset Management Inc.14,752$9.43M0.13%+635+4.5%Added
Segall Bryant & Hamill, LLC14,343$9.16M0.12%−6,743−32.0%Reduced
Cardinal Capital Management14,178$9.06M1.25%−90−0.6%Reduced
Banco Bilbao Vizcaya Argentaria, S.A.14,140$9.01M0.07%+10,943+342.3%Added
CIBC Bancorp USA Inc.13,983$8.93M0.05%+13,983New
Midwest Trust Co13,781$8.80M0.11%+12,179+760.2%Added
Haven Capital Group, Inc.13,669$8.73M7.78%−423−3.0%Reduced
Capital Fund Management S.A.13,506$8.63M0.09%+1,964+17.0%Added