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 |
|---|---|---|---|---|---|
| SEI Investments Co | 103,396 | $66.1M | 0.07% | −17,191−14.3% | Reduced |
| Mackenzie Financial Corp | 103,734 | $66.3M | 0.08% | −45,788−30.6% | Reduced |
| Bradley Foster & Sargent Inc | 105,109 | $67.2M | 0.99% | +414+0.4% | Added |
| Frontier Capital Management Co LLC | 108,302 | $69.2M | 0.62% | −763−0.7% | Reduced |
| Brown Advisory Inc | 108,817 | $69.5M | 0.09% | +56+0.1% | Added |
| Federated Hermes, Inc. | 108,865 | $69.6M | 0.12% | +79,421+269.7% | Added |
| ProShare Advisors LLC | 109,003 | $69.6M | 0.15% | −26,561−19.6% | Reduced |
| Flossbach Von Storch AG | 110,534 | $70.6M | 0.28% | −130,591−54.2% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 113,245 | $72.4M | 0.12% | −60,082−34.7% | Reduced |
| Voya Investment Management LLC | 114,169 | $72.9M | 0.07% | −34,523−23.2% | Reduced |
| CI Private Wealth, LLC | 116,177 | $74.2M | 0.12% | −1,297−1.1% | Reduced |
| National Pension Service | 117,093 | $74.8M | 0.06% | +2,715+2.4% | Added |
| Rathbone Brothers plc | 117,569 | $75.1M | 0.30% | −19,650−14.3% | Reduced |
| LGT Capital Partners Ltd. | 120,325 | $76.9M | 3.73% | −29,246−19.6% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 126,165 | $80.6M | 0.15% | +65,298+107.3% | Added |
| EULAV Asset Management | 126,220 | $80.6M | 1.87% | +30.0% | Added |
| California State Teachers Retirement System | 126,660 | $80.9M | 0.08% | −2,176−1.7% | Reduced |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 127,111 | $81.2M | 0.71% | −4,572−3.5% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 130,199 | $83.2M | 0.20% | +19,183+17.3% | Added |
| Fiera Capital Corp | 130,521 | $83.4M | 0.27% | −3,577−2.7% | Reduced |
| AQR Capital Management LLC | 135,154 | $85.4M | 0.05% | −88,165−39.5% | Reduced |
| Los Angeles Capital Management LLC | 135,435 | $86.5M | 0.29% | +33,232+32.5% | Added |
| Bank of Montreal | 139,126 | $88.9M | 0.04% | +18,025+14.9% | Added |
| Seilern Investment Management Ltd | 141,276 | $90.3M | 6.52% | −70,900−33.4% | Reduced |
| Citigroup Inc | 144,452 | $92.3M | 0.06% | +7,670+5.6% | Added |
| Vontobel Holding Ltd. | 147,384 | $94.2M | 0.30% | −266,150−64.4% | Reduced |
| Caisse de Depot Et Placement du Quebec | 154,206 | $98.5M | 0.18% | −26,889−14.8% | Reduced |
| Canada Pension Plan Investment Board | 157,512 | $100.6M | 0.07% | +72,794+85.9% | Added |
| California Public Employees Retirement System | 157,570 | $100.7M | 0.06% | +9,162+6.2% | Added |
| BNP Paribas Arbitrage, SA | 160,995 | $102.9M | 0.08% | −13,871−7.9% | Reduced |
| Liontrust Investment Partners LLP | 165,692 | $105.9M | 1.55% | −9,888−5.6% | Reduced |
| Welch & Forbes LLC | 168,926 | $107.9M | 1.30% | −91−0.1% | Reduced |
| Russell Investments Group, Ltd. | 172,998 | $110.4M | 0.13% | −9,367−5.1% | Reduced |
| Rhumbline Advisers | 174,026 | $111.2M | 0.09% | −5,492−3.1% | Reduced |
| KBC Group NV | 174,887 | $111.7M | 0.27% | +89,220+104.1% | Added |
| Prudential Financial Inc | 178,542 | $114.1M | 0.14% | +115,421+182.9% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 183,818 | $117.4M | 0.08% | +6,649+3.8% | Added |
| Wells Fargo & Company | 184,235 | $117.7M | 0.02% | +12,769+7.4% | Added |
| American Capital Management Inc | 184,298 | $117.7M | 4.69% | −4,702−2.5% | Reduced |
| Arrowstreet Capital, Limited Partnership | 185,094 | $118.3M | 0.07% | −21,043−10.2% | Reduced |
| Wellington Management Group LLP | 186,380 | $119.1M | 0.02% | −1,793−1.0% | Reduced |
| HSBC Holdings PLC | 193,140 | $123.2M | 0.07% | −31,010−13.8% | Reduced |
| TimesSquare Capital Management, LLC | 192,938 | $123.3M | 1.76% | −8,338−4.1% | Reduced |
| Ameriprise Financial Inc | 197,113 | $126.0M | 0.03% | −18,732−8.7% | Reduced |
| Victory Capital Management Inc | 198,562 | $126.9M | 0.08% | +13,981+7.6% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 200,480 | $128.1M | 0.07% | −1,438−0.7% | Reduced |
| Envestnet Asset Management Inc | 201,921 | $129.0M | 0.04% | −28,990−12.6% | Reduced |
| Robeco Institutional Asset Management B.V. | 206,516 | $131.9M | 0.19% | −712−0.3% | Reduced |
| Zurich Insurance Group Ltd | 224,968 | $143.7M | 1.03% | +224,968 | New |
| Montrusco Bolton Investments Inc. | 232,282 | $145.6M | 1.69% | −197,127−45.9% | Reduced |
| First Trust Advisors LP | 230,187 | $147.1M | 0.11% | −24,366−9.6% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 230,439 | $147.2M | 0.41% | −2,824−1.2% | Reduced |
| Epoch Investment Partners, Inc. | 231,841 | $148.1M | 0.81% | −18,750−7.5% | Reduced |
| Swiss National Bank | 231,900 | $148.2M | 0.09% | −13,400−5.5% | Reduced |
| FMR LLC | 233,046 | $148.9M | 0.01% | −36,836−13.6% | Reduced |
| Barclays PLC | 236,670 | $151.2M | 0.06% | −68,510−22.4% | Reduced |
| Comgest Global Investors S.A.S. | 244,222 | $156.0M | 2.76% | +1130.0% | Added |
| Generation Investment Management LLP | 260,394 | $166.4M | 1.10% | −306,928−54.1% | Reduced |
| Raymond James Financial Inc | 272,591 | $174.2M | 0.06% | +61,818+29.3% | Added |
| Williams Jones Wealth Management, LLC. | 272,905 | $174.4M | 2.00% | −4,583−1.7% | Reduced |
| Neuberger Berman Group LLC | 274,144 | $175.1M | 0.13% | −76,843−21.9% | Reduced |
| Pictet Asset Management Holding SA | 279,487 | $178.5M | 0.17% | −50,874−15.4% | Reduced |
| Clearbridge Investments, LLC | 280,847 | $179.4M | 0.14% | −2,918−1.0% | Reduced |
| Select Equity Group, L.P. | 282,018 | $180.2M | 0.77% | −291,695−50.8% | Reduced |
| Railway Pension Investments Ltd | 296,530 | $189.5M | 2.57% | +142,200+92.1% | Added |
| TD Asset Management Inc | 304,190 | $194.3M | 0.16% | −25,321−7.7% | Reduced |
| Schroder Investment Management Group | 323,305 | $203.9M | 0.16% | +7,520+2.4% | Added |
| Royal Bank of Canada | 337,750 | $215.8M | 0.04% | −70,502−17.3% | Reduced |
| UBS Group AG | 350,893 | $224.2M | 0.04% | −22,118−5.9% | Reduced |
| Bessemer Group Inc | 352,268 | $225.1M | 0.34% | −29,560−7.7% | Reduced |
| Deutsche Bank AG | 352,792 | $225.4M | 0.08% | +23,775+7.2% | Added |
| CIBC Private Wealth Group, LLC | 370,539 | $236.7M | 0.41% | −4,206−1.1% | Reduced |
| Capital Counsel LLC | 432,690 | $276.4M | 10.60% | −28,080−6.1% | Reduced |
| Nuveen, LLC | 448,254 | $286.4M | 0.08% | −13,749−3.0% | Reduced |
| William Blair Investment Management, LLC | 459,019 | $293.3M | 0.76% | −226,069−33.0% | Reduced |
| Bank of America Corp | 488,338 | $312.0M | 0.02% | −5,816−1.2% | Reduced |
| Macquarie Group Ltd | 526,630 | $336.5M | 0.39% | −75,014−12.5% | Reduced |
| Dimensional Fund Advisors LP | 544,185 | $347.6M | 0.07% | −13,001−2.3% | Reduced |
| Franklin Resources Inc | 572,978 | $366.1M | 0.09% | −19,671−3.3% | Reduced |
| Charles Schwab Investment Management Inc | 575,930 | $368.0M | 0.06% | +19,368+3.5% | Added |
| Amundi | 592,599 | $372.0M | 0.12% | −83,073−12.3% | Reduced |
| Legal & General Group Plc | 675,535 | $431.6M | 0.10% | +26,909+4.1% | Added |
| Fundsmith Investment Services Ltd. | 688,357 | $439.8M | 6.85% | −156,259−18.5% | Reduced |
| Capital Research Global Investors | 690,601 | $441.2M | 0.08% | +5,641+0.8% | Added |
| Price T Rowe Associates Inc | 694,208 | $443.5M | 0.05% | +158,107+29.5% | Added |
| American Century Companies Inc | 705,158 | $450.5M | 0.23% | −148,003−17.3% | Reduced |
| Goldman Sachs Group Inc | 711,942 | $454.9M | 0.07% | +122,890+20.9% | Added |
| JPMorgan Chase & Co | 869,930 | $555.8M | 0.04% | +326,348+60.0% | Added |
| UBS Asset Management Americas Inc | 875,549 | $559.4M | 0.12% | −194,551−18.2% | Reduced |
| Northern Trust Corp | 942,368 | $602.1M | 0.08% | −14,723−1.5% | Reduced |
| Blair William & Co | 1,031,786 | $659.2M | 1.75% | −48,719−4.5% | Reduced |
| Polen Capital Management LLC | 1,127,147 | $720.1M | 2.34% | −68,278−5.7% | Reduced |
| Principal Financial Group Inc | 1,315,722 | $840.6M | 0.42% | +187,967+16.7% | Added |
| Invesco Ltd. | 1,320,263 | $843.5M | 0.13% | +161,782+14.0% | Added |
| Morgan Stanley | 1,622,490 | $1.04B | 0.06% | −40,836−2.5% | Reduced |
| Bamco Inc | 1,884,129 | $1.20B | 3.19% | −148,491−7.3% | Reduced |
| Bank of New York Mellon Corp | 2,056,680 | $1.31B | 0.24% | +605,290+41.7% | Added |
| Geode Capital Management, LLC | 2,497,676 | $1.59B | 0.10% | +33,386+1.4% | Added |
| Fundsmith LLPSuperinvestorFundsmith | 2,610,457 | $1.67B | 8.43% | −28,832−1.1% | Reduced |
| State Street Corp | 3,517,670 | $2.25B | 0.08% | −36,754−1.0% | Reduced |