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 2026
Institutional positions in IDEXX Laboratories Inc as of Jun 30, 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
- 1,306
- +9 vs. Q1 2026
- Shares held
- 74.2M
- +983.2K (+1.3%) vs. Q1 2026
- Total value
- $39.1B
- −$2.07B (−5.0%) vs. Q1 2026
- New holders
- 115
- 474 more added
- Sold out
- 106
- 511 more reduced
21 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding IDEXX Laboratories Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Stephens Investment Management Group LLC | 110,154 | $58.0M | 0.62% | +8,057+7.9% | Added |
| Renaissance Technologies LLC | 109,784 | $57.8M | 0.08% | +61,280+126.3% | Added |
| TCW Group Inc | 108,951 | $57.4M | 0.39% | −9,800−8.3% | Reduced |
| Brown Advisory Inc | 108,229 | $57.0M | 0.09% | +180+0.2% | Added |
| National Bank of Canada | 107,043 | $56.4M | 0.05% | +37,154+53.2% | Added |
| Jensen Investment Management Inc | 105,709 | $55.6M | 1.35% | +102,139+2,861.0% | Added |
| Jane Street Group, LLC | 105,108 | $55.3M | 0.04% | +90,110+600.8% | Added |
| Bradley Foster & Sargent Inc | 104,140 | $54.8M | 0.78% | +486+0.5% | Added |
| Alliancebernstein L.P. | 95,773 | $53.8M | 0.02% | +1,289+1.4% | Added |
| Seilern Investment Management Ltd | 97,560 | $51.4M | 6.47% | +16,729+20.7% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 96,055 | $50.6M | 0.07% | −37,836−28.3% | Reduced |
| Voya Investment Management LLC | 95,942 | $50.5M | 0.04% | +1,956+2.1% | Added |
| ProShare Advisors LLC | 94,051 | $49.5M | 0.07% | −28,567−23.3% | Reduced |
| Marshall Wace, LLP | 93,128 | $49.0M | 0.04% | +43,833+88.9% | Added |
| Virginia Retirement Systems Et Al | 92,218 | $48.5M | 0.29% | +20,420+28.4% | Added |
| Standard Life Aberdeen plc | 91,286 | $48.1M | 0.07% | −2,011−2.2% | Reduced |
| Davis R M Inc | 91,242 | $48.0M | 0.76% | −721−0.8% | Reduced |
| Pictet & Cie (Europe) SA | 89,000 | $46.9M | 0.92% | 00.0% | Unchanged |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 88,635 | $46.7M | 0.07% | −26,944−23.3% | Reduced |
| SG Americas Securities, LLC | 87,840 | $46.2M | 0.03% | +77,209+726.3% | Added |
| Mogy Joel R Investment Counsel Inc | 85,445 | $45.0M | 2.58% | −47−0.1% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 85,414 | $45.0M | 0.10% | +59+0.1% | Added |
| Quantum Capital Management, LLC | 83,634 | $44.0M | 5.52% | +27,426+48.8% | Added |
| Kayne Anderson Rudnick Investment Management LLC | 83,104 | $43.7M | 0.14% | −17,736−17.6% | Reduced |
| LGT Capital Partners Ltd. | 79,135 | $41.7M | 2.11% | −28,881−26.7% | Reduced |
| Natixis Advisors, L.P. | 79,090 | $41.6M | 0.05% | +14,628+22.7% | Added |
| Millennium Management LLC | 78,980 | $41.6M | 0.03% | +8,534+12.1% | Added |
| AQR Capital Management LLC | 77,198 | $40.4M | 0.01% | −19,528−20.2% | Reduced |
| Baird Financial Group, Inc. | 76,035 | $40.0M | 0.06% | −6,500−7.9% | Reduced |
| Lazard Freres Gestion S.A.S. | 75,574 | $39.8M | 0.69% | +8,287+12.3% | Added |
| Chicago Capital, LLC | 74,297 | $39.1M | 0.94% | −3,084−4.0% | Reduced |
| Aviva PLC | 73,861 | $38.9M | 0.06% | +179+0.2% | Added |
| Riverbridge Partners LLC | 73,440 | $38.7M | 1.08% | −9,084−11.0% | Reduced |
| Great West Life Assurance Co | 72,305 | $38.0M | 0.06% | +1,841+2.6% | Added |
| SEI Investments Co | 71,577 | $37.7M | 0.03% | −22,909−24.2% | Reduced |
| State Board of Administration of Florida Retirement System | 70,689 | $37.2M | 0.06% | −870−1.2% | Reduced |
| Adage Capital Partners GP, L.L.C. | 70,301 | $37.0M | 0.05% | +2,000+2.9% | Added |
| Manitou Investment Management Ltd. | 69,979 | $36.8M | 6.85% | +381+0.5% | Added |
| Teacher Retirement System of Texas | 67,242 | $35.4M | 0.10% | −3,127−4.4% | Reduced |
| Fiera Capital Corp | 64,369 | $33.9M | 0.12% | −6,838−9.6% | Reduced |
| Jupiter Asset Management Ltd | 64,248 | $33.8M | 0.17% | +36,698+133.2% | Added |
| Tremblant Capital Group | 63,437 | $33.4M | 0.96% | −1,103−1.7% | Reduced |
| Ameriprise Financial Inc | 62,784 | $33.1M | 0.01% | −71,512−53.2% | Reduced |
| New York State Teachers Retirement System | 62,385 | $32.8M | 0.06% | −4,769−7.1% | Reduced |
| Colony Group, LLC | 61,904 | $32.6M | 0.03% | +1,716+2.9% | Added |
| Bellevue Group AG | 61,780 | $32.5M | 0.68% | −27,351−30.7% | Reduced |
| Freestone Grove Partners LP | 60,557 | $31.9M | 0.21% | −29,959−33.1% | Reduced |
| Jones Financial Companies LLLP | 57,674 | $31.8M | 0.01% | +18,262+46.3% | Added |
| NEOS Investment Management LLC | 60,354 | $31.8M | 0.12% | +6,721+12.5% | Added |
| RMB Capital Management, LLC | 59,496 | $31.3M | 0.48% | +2,295+4.0% | Added |
| Aware Super Pty Ltd as trustee of Aware Super | 59,123 | $31.1M | 0.44% | −1,573−2.6% | Reduced |
| Local Pensions Partnership Investment Ltd | 59,126 | $31.1M | 0.65% | +1,000+1.7% | Added |
| DekaBank Deutsche Girozentrale | 54,792 | $30.4M | 0.05% | 00.0% | Unchanged |
| Beacon Investment Advisory Services, Inc. | 55,153 | $29.0M | 1.08% | −3,657−6.2% | Reduced |
| APG Asset Management N.V. | 62,926 | $29.0M | 0.07% | +14,528+30.0% | Added |
| Asset Management One Co.,Ltd. | 54,796 | $28.8M | 0.07% | +909+1.7% | Added |
| Susquehanna International Group, LLP | 54,439 | $28.7M | 0.03% | +40,378+287.2% | Added |
| Biondo Investment Advisors, LLC | 53,673 | $28.3M | 3.46% | +1,407+2.7% | Added |
| Mirae Asset Global Investments Co., Ltd. | 53,464 | $28.1M | 0.05% | +6,333+13.4% | Added |
| Man Group plc | 51,382 | $27.0M | 0.05% | +16,857+48.8% | Added |
| Rockefeller Capital Management L.P. | 51,299 | $27.0M | 0.04% | −893−1.7% | Reduced |
| Vinva Investment Management Ltd | 50,327 | $27.0M | 0.18% | +19,153+61.4% | Added |
| Royal London Asset Management Ltd | 50,714 | $26.7M | 0.05% | −314−0.6% | Reduced |
| Investment Management Corp of Ontario | 50,051 | $26.3M | 0.33% | −680−1.3% | Reduced |
| Harvey Investment Co LLC | 49,209 | $25.9M | 2.82% | −875−1.7% | Reduced |
| Schaper Benz & Wise Investment Counsel Inc | 49,206 | $25.9M | 1.73% | +61+0.1% | Added |
| Danske Bank A/S | 47,228 | $24.9M | 0.05% | +3,161+7.2% | Added |
| Gotham Asset Management, LLC | 47,154 | $24.8M | 0.06% | −33,323−41.4% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 46,796 | $24.6M | 0.03% | −9,265−16.5% | Reduced |
| Howland Capital Management LLC | 46,776 | $24.6M | 0.89% | −702−1.5% | Reduced |
| State of Wisconsin Investment Board | 46,644 | $24.6M | 0.05% | −4,734−9.2% | Reduced |
| Assetmark, Inc | 46,428 | $24.4M | 0.04% | −4,396−8.6% | Reduced |
| The PNC Financial Services Group, Inc. | 46,351 | $24.4M | 0.01% | +612+1.3% | Added |
| New York State Common Retirement Fund | 46,031 | $24.2M | 0.03% | −1,804−3.8% | Reduced |
| KLP Kapitalforvaltning AS | 45,840 | $24.1M | 0.08% | +1,800+4.1% | Added |
| Factory Mutual Insurance Co | 45,700 | $24.1M | 0.23% | −100−0.2% | Reduced |
| Railway Pension Investments Ltd | 45,360 | $23.9M | 0.30% | −211,120−82.3% | Reduced |
| LPL Financial LLC | 44,772 | $23.6M | 0.01% | +940+2.1% | Added |
| Mackenzie Financial Corp | 44,162 | $23.2M | 0.02% | −1,577−3.4% | Reduced |
| Nomura Asset Management Co Ltd | 43,890 | $23.1M | 0.05% | +348+0.8% | Added |
| Allspring Global Investments Holdings, LLC | 42,824 | $23.0M | 0.04% | −374−0.9% | Reduced |
| Creative Planning | 43,512 | $22.9M | 0.01% | +6,342+17.1% | Added |
| PFA Pension, Forsikringsaktieselskab | 42,986 | $22.6M | 0.06% | −4,739−9.9% | Reduced |
| Raiffeisen Bank International AG | 41,815 | $22.4M | 0.26% | −788−1.8% | Reduced |
| Mediolanum International Funds Ltd | 41,323 | $22.1M | 0.19% | −1,542−3.6% | Reduced |
| Public Employees Retirement Association of Colorado | 40,896 | $21.5M | 0.07% | −492−1.2% | Reduced |
| Vanguard Investments Australia, Ltd. | 40,523 | $21.3M | 0.05% | +655+1.6% | Added |
| Geneva Capital Management LLC | 40,242 | $21.2M | 0.49% | −2,766−6.4% | Reduced |
| BLI - Banque de Luxembourg Investments | 38,931 | $20.9M | 0.74% | −16,840−30.2% | Reduced |
| Manufacturers Life Insurance Company, The | 39,712 | $20.9M | 0.02% | −2,943−6.9% | Reduced |
| DF Dent & Co Inc | 39,515 | $20.8M | 0.39% | −508−1.3% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 39,381 | $20.7M | 0.05% | −1,215−3.0% | Reduced |
| Capital Investment Services of America, Inc. | 38,977 | $20.5M | 2.01% | +347+0.9% | Added |
| Prudential PLC | 38,954 | $20.5M | 0.15% | −3,096−7.4% | Reduced |
| Achmea Investment Management B.V. | 38,859 | $20.5M | 0.51% | −2,898−6.9% | Reduced |
| Citadel Advisors LLC | 38,846 | $20.5M | 0.01% | −48,720−55.6% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 38,532 | $20.3M | 0.10% | −2,880−7.0% | Reduced |
| FORA Capital, LLC | 38,470 | $20.2M | 1.39% | +22,545+141.6% | Added |
| Swiss Life Asset Management Ltd | 38,401 | $20.2M | 0.08% | +7,295+23.5% | Added |
| Handelsbanken Fonder AB | 38,344 | $20.2M | 0.06% | +2,150+5.9% | Added |