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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,306 | $39.1B |
| Q1 2026 | 1,318 | $41.2B |
| Q4 2025 | 1,385 | $50.3B |
| Q3 2025 | 1,302 | $46.1B |
| Q2 2025 | 1,234 | $40.0B |
| Q1 2025 | 1,143 | $31.1B |
| Q4 2024 | 1,124 | $29.8B |
| Q3 2024 | 1,117 | $36.7B |
| Q2 2024 | 1,110 | $36.4B |
| Q1 2024 | 1,147 | $39.1B |
| Q4 2023 | 1,155 | $40.5B |
| Q3 2023 | 1,061 | $32.4B |
| Q2 2023 | 1,069 | $36.7B |
| Q1 2023 | 1,058 | $36.4B |
| Q4 2022 | 1,001 | $30.0B |
| Q3 2022 | 925 | $24.0B |
| Q2 2022 | 959 | $25.9B |
| Q1 2022 | 1,036 | $39.7B |
| Q4 2021 | 1,110 | $47.1B |
| Q3 2021 | 1,063 | $44.6B |
| Q2 2021 | 1,037 | $46.1B |
| Q1 2021 | 1,015 | $35.6B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding IDEXX Laboratories Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 9,962,025 | $6.36B | 0.10% | +86,040+0.9% | Added |
| BlackRock, Inc. | 8,205,011 | $5.24B | 0.09% | −168,971−2.0% | Reduced |
| State Street Corp | 3,517,670 | $2.25B | 0.08% | −36,754−1.0% | Reduced |
| Fundsmith LLPSuperinvestorFundsmith | 2,610,457 | $1.67B | 8.43% | −28,832−1.1% | Reduced |
| Geode Capital Management, LLC | 2,497,676 | $1.59B | 0.10% | +33,386+1.4% | Added |
| Bank of New York Mellon Corp | 2,056,680 | $1.31B | 0.24% | +605,290+41.7% | Added |
| Bamco Inc | 1,884,129 | $1.20B | 3.19% | −148,491−7.3% | Reduced |
| Morgan Stanley | 1,622,490 | $1.04B | 0.06% | −40,836−2.5% | Reduced |
| Invesco Ltd. | 1,320,263 | $843.5M | 0.13% | +161,782+14.0% | Added |
| Principal Financial Group Inc | 1,315,722 | $840.6M | 0.42% | +187,967+16.7% | Added |
| Polen Capital Management LLC | 1,127,147 | $720.1M | 2.34% | −68,278−5.7% | Reduced |
| Blair William & Co | 1,031,786 | $659.2M | 1.75% | −48,719−4.5% | Reduced |
| Northern Trust Corp | 942,368 | $602.1M | 0.08% | −14,723−1.5% | Reduced |
| UBS Asset Management Americas Inc | 875,549 | $559.4M | 0.12% | −194,551−18.2% | Reduced |
| JPMorgan Chase & Co | 869,930 | $555.8M | 0.04% | +326,348+60.0% | Added |
| Goldman Sachs Group Inc | 711,942 | $454.9M | 0.07% | +122,890+20.9% | Added |
| American Century Companies Inc | 705,158 | $450.5M | 0.23% | −148,003−17.3% | Reduced |
| Price T Rowe Associates Inc | 694,208 | $443.5M | 0.05% | +158,107+29.5% | Added |
| Capital Research Global Investors | 690,601 | $441.2M | 0.08% | +5,641+0.8% | Added |
| Fundsmith Investment Services Ltd. | 688,357 | $439.8M | 6.85% | −156,259−18.5% | Reduced |
| Legal & General Group Plc | 675,535 | $431.6M | 0.10% | +26,909+4.1% | Added |
| Amundi | 592,599 | $372.0M | 0.12% | −83,073−12.3% | Reduced |
| Charles Schwab Investment Management Inc | 575,930 | $368.0M | 0.06% | +19,368+3.5% | Added |
| Franklin Resources Inc | 572,978 | $366.1M | 0.09% | −19,671−3.3% | Reduced |
| Dimensional Fund Advisors LP | 544,185 | $347.6M | 0.07% | −13,001−2.3% | Reduced |
| Macquarie Group Ltd | 526,630 | $336.5M | 0.39% | −75,014−12.5% | Reduced |
| Bank of America Corp | 488,338 | $312.0M | 0.02% | −5,816−1.2% | Reduced |
| William Blair Investment Management, LLC | 459,019 | $293.3M | 0.76% | −226,069−33.0% | Reduced |
| Nuveen, LLC | 448,254 | $286.4M | 0.08% | −13,749−3.0% | Reduced |
| Capital Counsel LLC | 432,690 | $276.4M | 10.60% | −28,080−6.1% | Reduced |
| CIBC Private Wealth Group, LLC | 370,539 | $236.7M | 0.41% | −4,206−1.1% | Reduced |
| Deutsche Bank AG | 352,792 | $225.4M | 0.08% | +23,775+7.2% | Added |
| Bessemer Group Inc | 352,268 | $225.1M | 0.34% | −29,560−7.7% | Reduced |
| UBS Group AG | 350,893 | $224.2M | 0.04% | −22,118−5.9% | Reduced |
| Royal Bank of Canada | 337,750 | $215.8M | 0.04% | −70,502−17.3% | Reduced |
| Schroder Investment Management Group | 323,305 | $203.9M | 0.16% | +7,520+2.4% | Added |
| TD Asset Management Inc | 304,190 | $194.3M | 0.16% | −25,321−7.7% | Reduced |
| Railway Pension Investments Ltd | 296,530 | $189.5M | 2.57% | +142,200+92.1% | Added |
| Select Equity Group, L.P. | 282,018 | $180.2M | 0.77% | −291,695−50.8% | Reduced |
| Clearbridge Investments, LLC | 280,847 | $179.4M | 0.14% | −2,918−1.0% | Reduced |
| Pictet Asset Management Holding SA | 279,487 | $178.5M | 0.17% | −50,874−15.4% | Reduced |
| Neuberger Berman Group LLC | 274,144 | $175.1M | 0.13% | −76,843−21.9% | Reduced |
| Williams Jones Wealth Management, LLC. | 272,905 | $174.4M | 2.00% | −4,583−1.7% | Reduced |
| Raymond James Financial Inc | 272,591 | $174.2M | 0.06% | +61,818+29.3% | Added |
| Generation Investment Management LLP | 260,394 | $166.4M | 1.10% | −306,928−54.1% | Reduced |
| Comgest Global Investors S.A.S. | 244,222 | $156.0M | 2.76% | +1130.0% | Added |
| Barclays PLC | 236,670 | $151.2M | 0.06% | −68,510−22.4% | Reduced |
| FMR LLC | 233,046 | $148.9M | 0.01% | −36,836−13.6% | Reduced |
| Swiss National Bank | 231,900 | $148.2M | 0.09% | −13,400−5.5% | Reduced |
| Epoch Investment Partners, Inc. | 231,841 | $148.1M | 0.81% | −18,750−7.5% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 230,439 | $147.2M | 0.41% | −2,824−1.2% | Reduced |
| First Trust Advisors LP | 230,187 | $147.1M | 0.11% | −24,366−9.6% | Reduced |
| Montrusco Bolton Investments Inc. | 232,282 | $145.6M | 1.69% | −197,127−45.9% | Reduced |
| Zurich Insurance Group Ltd | 224,968 | $143.7M | 1.03% | +224,968 | New |
| Robeco Institutional Asset Management B.V. | 206,516 | $131.9M | 0.19% | −712−0.3% | Reduced |
| Envestnet Asset Management Inc | 201,921 | $129.0M | 0.04% | −28,990−12.6% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 200,480 | $128.1M | 0.07% | −1,438−0.7% | Reduced |
| Victory Capital Management Inc | 198,562 | $126.9M | 0.08% | +13,981+7.6% | Added |
| Ameriprise Financial Inc | 197,113 | $126.0M | 0.03% | −18,732−8.7% | Reduced |
| TimesSquare Capital Management, LLC | 192,938 | $123.3M | 1.76% | −8,338−4.1% | Reduced |
| HSBC Holdings PLC | 193,140 | $123.2M | 0.07% | −31,010−13.8% | Reduced |
| Wellington Management Group LLP | 186,380 | $119.1M | 0.02% | −1,793−1.0% | Reduced |
| Arrowstreet Capital, Limited Partnership | 185,094 | $118.3M | 0.07% | −21,043−10.2% | Reduced |
| American Capital Management Inc | 184,298 | $117.7M | 4.69% | −4,702−2.5% | Reduced |
| Wells Fargo & Company | 184,235 | $117.7M | 0.02% | +12,769+7.4% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 183,818 | $117.4M | 0.08% | +6,649+3.8% | Added |
| Prudential Financial Inc | 178,542 | $114.1M | 0.14% | +115,421+182.9% | Added |
| KBC Group NV | 174,887 | $111.7M | 0.27% | +89,220+104.1% | Added |
| Rhumbline Advisers | 174,026 | $111.2M | 0.09% | −5,492−3.1% | Reduced |
| Russell Investments Group, Ltd. | 172,998 | $110.4M | 0.13% | −9,367−5.1% | Reduced |
| Welch & Forbes LLC | 168,926 | $107.9M | 1.30% | −91−0.1% | Reduced |
| Liontrust Investment Partners LLP | 165,692 | $105.9M | 1.55% | −9,888−5.6% | Reduced |
| BNP Paribas Arbitrage, SA | 160,995 | $102.9M | 0.08% | −13,871−7.9% | Reduced |
| California Public Employees Retirement System | 157,570 | $100.7M | 0.06% | +9,162+6.2% | Added |
| Canada Pension Plan Investment Board | 157,512 | $100.6M | 0.07% | +72,794+85.9% | Added |
| Caisse de Depot Et Placement du Quebec | 154,206 | $98.5M | 0.18% | −26,889−14.8% | Reduced |
| Vontobel Holding Ltd. | 147,384 | $94.2M | 0.30% | −266,150−64.4% | Reduced |
| Citigroup Inc | 144,452 | $92.3M | 0.06% | +7,670+5.6% | Added |
| Seilern Investment Management Ltd | 141,276 | $90.3M | 6.52% | −70,900−33.4% | Reduced |
| Bank of Montreal | 139,126 | $88.9M | 0.04% | +18,025+14.9% | Added |
| Los Angeles Capital Management LLC | 135,435 | $86.5M | 0.29% | +33,232+32.5% | Added |
| AQR Capital Management LLC | 135,154 | $85.4M | 0.05% | −88,165−39.5% | Reduced |
| Fiera Capital Corp | 130,521 | $83.4M | 0.27% | −3,577−2.7% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 130,199 | $83.2M | 0.20% | +19,183+17.3% | Added |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 127,111 | $81.2M | 0.71% | −4,572−3.5% | Reduced |
| California State Teachers Retirement System | 126,660 | $80.9M | 0.08% | −2,176−1.7% | Reduced |
| EULAV Asset Management | 126,220 | $80.6M | 1.87% | +30.0% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 126,165 | $80.6M | 0.15% | +65,298+107.3% | Added |
| LGT Capital Partners Ltd. | 120,325 | $76.9M | 3.73% | −29,246−19.6% | Reduced |
| Rathbone Brothers plc | 117,569 | $75.1M | 0.30% | −19,650−14.3% | Reduced |
| National Pension Service | 117,093 | $74.8M | 0.06% | +2,715+2.4% | Added |
| CI Private Wealth, LLC | 116,177 | $74.2M | 0.12% | −1,297−1.1% | Reduced |
| Voya Investment Management LLC | 114,169 | $72.9M | 0.07% | −34,523−23.2% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 113,245 | $72.4M | 0.12% | −60,082−34.7% | Reduced |
| Flossbach Von Storch AG | 110,534 | $70.6M | 0.28% | −130,591−54.2% | Reduced |
| ProShare Advisors LLC | 109,003 | $69.6M | 0.15% | −26,561−19.6% | Reduced |
| Federated Hermes, Inc. | 108,865 | $69.6M | 0.12% | +79,421+269.7% | Added |
| Brown Advisory Inc | 108,817 | $69.5M | 0.09% | +56+0.1% | Added |
| Frontier Capital Management Co LLC | 108,302 | $69.2M | 0.62% | −763−0.7% | Reduced |
| Bradley Foster & Sargent Inc | 105,109 | $67.2M | 0.99% | +414+0.4% | Added |