Idexx LaboratoriesIDXX
13F holders, Q1 2025 (March 31)1,144holders +20
107new positions
87sold out
10famous investors
$419.69avg. 13F price*
At the end of Q1 2025, 1,144 institutions reported holding Idexx Laboratories Inc. (IDXX) in their 13F filings, up 20 from Q4 2024. 107 opened new positions and 87 sold out. The largest holders were Vanguard Group Inc. ($4.1B), BlackRock, Inc. ($3.7B) and State Street Corp. ($1.5B). 10 famous investors held it, including Terry Smith (5.1% of Fundsmith's portfolio), Ron Baron (2.5% of Baron Capital (BAMCO)'s portfolio) and Paul Tudor Jones (0.1% of Tudor Investment Corporation's portfolio).
- Company
- Idexx Laboratories Inc.
- Sector
- Health Care
- CUSIP
- 45168D104
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 107 | $832.9M |
| Exits | 87 | $343.9M |
All 13F filers, Q4 2024 → Q1 2025: 7,487,029 shares bought and 5,407,161 shares sold, net +2,079,868 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 1,144 holders
| Vanguard Group Inc. | 0.07% | Add +1.5% | 9,855,937 | $4.1B |
| BlackRock, Inc. | 0.08% | Add +2.7% | 8,703,074 | $3.7B |
| State Street Corp. | 0.06% | Add +0.3% | 3,649,878 | $1.5B |
| Fundsmith | 5.06% | Reduce -0.6% | 2,648,331 | $1.1B |
| Geode Capital Management, LLC | 0.08% | Add +4.9% | 2,409,888 | $1.0B |
| Baron Capital (BAMCO) | 2.54% | Add +2.7% | 2,059,777 | $865.0M |
| T. Rowe Price Associates Inc. | 0.10% | Add +71.0% | 1,988,912 | $835.2M |
| Morgan Stanley | 0.05% | Add +1.6% | 1,658,345 | $696.4M |
| Invesco Ltd. | 0.09% | Add +0.5% | 1,166,406 | $489.8M |
| Principal Financial Group Inc. | 0.27% | Add +58.3% | 1,126,002 | $472.9M |
| Blair William & Co. | 1.38% | Reduce -1.3% | 1,090,770 | $458.1M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.12% | Add +37.0% | 1,076,429 | $452.0M |
| Northern Trust Corp. | 0.06% | Reduce -0.9% | 905,067 | $380.1M |
| American Century Companies Inc. | 0.22% | Add +7.2% | 867,992 | $364.5M |
| Fundsmith Investment Services LTD. | 5.06% | Reduce -1.2% | 854,359 | $358.8M |
| Amundi | 0.11% | Reduce -4.7% | 723,111 | $297.0M |
| Capital Research Global Investors | 0.06% | Add +8.4% | 667,804 | $280.4M |
| Macquarie Group Ltd. | 0.34% | Add +36.1% | 655,401 | $275.2M |
| William Blair Investment Management, LLC | 0.75% | Add +50.9% | 637,111 | $267.6M |
| Legal & General Group Plc | 0.07% | Add +4.4% | 636,858 | $267.4M |
| Bank of New York Mellon Corp | 0.05% | Reduce -1.8% | 566,582 | $237.9M |
| Dimensional Fund Advisors LP | 0.06% | Reduce -3.6% | 565,508 | $237.5M |
| Franklin Resources Inc. | 0.07% | Reduce -36.0% | 554,447 | $232.8M |
| Charles Schwab Investment Management Inc. | 0.04% | Add +3.8% | 551,946 | $231.8M |
| Flossbach Von Storch SE | 1.00% | Add +16.6% | 551,764 | $231.7M |
| Bank of America Corp. | 0.02% | Add +35.0% | 550,287 | $231.1M |
| Goldman Sachs Group Inc. | 0.04% | Add +14.7% | 489,210 | $205.4M |
| Capital Counsel LLC | 8.69% | Add +2.0% | 467,009 | $196.1M |
| Select Equity Group, L.P. | 0.87% | New | 463,946 | $194.8M |
| Vontobel Holding Ltd. | 0.70% | Add +9.1% | 456,621 | $191.8M |
| Pictet Asset Management Holding SA | 0.21% | Add +3.1% | 456,366 | $191.6M |
| JPMorgan Chase & Co. | 0.01% | Reduce -17.6% | 443,065 | $186.1M |
| Nuveen, LLC | 0.05% | — | 428,109 | $179.8M |
| Neuberger Berman Group LLC | 0.15% | Add +4.9% | 415,141 | $174.3M |
| BNP Paribas Financial Markets | 0.13% | Reduce -9.8% | 398,153 | $167.2M |
| UBS Group AG | 0.04% | Add +13.4% | 376,543 | $158.1M |
| Durable Capital Partners LP | 1.37% | New | 364,757 | $153.2M |
| Deutsche Bank AG | 0.06% | Add +0.8% | 360,277 | $151.3M |
| Norges Bank | 0.02% | Reduce -65.1% | 347,963 | $146.1M |
| HSBC Holdings PLC | 0.10% | Reduce -10.3% | 347,613 | $145.7M |
| Bessemer Group Inc. | 0.26% | Add +48.3% | 340,062 | $142.8M |
| Royal Bank of Canada | 0.03% | Reduce -29.4% | 339,688 | $142.7M |
| Clearbridge Investments, LLC | 0.12% | Add +33.7% | 337,057 | $141.5M |
| Williams Jones Wealth Management, LLC. | 1.58% | Reduce -9.0% | 295,338 | $124.0M |
| TD Asset Management Inc | 0.11% | Add +7.3% | 293,713 | $123.3M |
| Montrusco Bolton Investments Inc. | 1.58% | New | 285,768 | $120.0M |
| Barclays PLC | 0.05% | Add +29.5% | 279,671 | $117.4M |
| Seilern Investment Management Ltd | 7.30% | Reduce -2.8% | 265,949 | $111.7M |
| Qube Research & Technologies Ltd | 0.17% | Add +19.4% | 264,019 | $110.9M |
| FMR LLC | 0.01% | Reduce -11.5% | 253,964 | $106.7M |
| Comgest Global Investors S.A.S. | 1.84% | Add +28.1% | 245,301 | $103.0M |
| D. E. Shaw & Co. | 0.13% | Add +12.3% | 238,234 | $100.0M |
| Bank Julius Baer & Co. Ltd, Zurich | 0.32% | Add +5.8% | 236,911 | $99.2M |
| Swiss National Bank | 0.07% | Reduce -0.7% | 231,000 | $97.0M |
| Champlain Investment Partners, LLC | 0.68% | New | 224,605 | $94.3M |
| American Capital Management Inc. | 3.79% | Add +7.5% | 221,606 | $93.1M |
| Wellington Management Group LLP | 0.02% | Add +12.4% | 219,573 | $92.2M |
| First Trust Advisors LP | 0.08% | Add +2.8% | 219,027 | $92.0M |
| Assenagon Asset Management S.A. | 0.15% | Reduce -52.5% | 206,551 | $86.7M |
| Epoch Investment Partners, Inc. | 0.44% | Add +17.4% | 200,967 | $84.4M |
| Sumitomo Mitsui Trust Group, Inc. | 0.06% | Add +0.5% | 199,390 | $83.7M |
| TimesSquare Capital Management, LLC | 1.34% | Add +2.2% | 197,746 | $83.0M |
| Raymond James Financial Inc. | 0.03% | Add +11.1% | 193,256 | $81.2M |
| Arrowstreet Capital, Limited Partnership | 0.07% | Add +34.3% | 190,910 | $80.2M |
| Liontrust Investment Partners LLP | 1.23% | Add +3055.0% | 187,629 | $78.8M |
| Rhumbline Advisers | 0.07% | Add +4.1% | 183,195 | $76.9M |
| Alliancebernstein L.P. | 0.03% | Reduce -85.3% | 181,892 | $76.4M |
| Russell Investments Group, Ltd. | 0.11% | Add +158.6% | 181,838 | $76.3M |
| Victory Capital Management Inc. | 0.08% | Add +4.1% | 180,165 | $75.7M |
| AQR Capital Management | 0.07% | Add +43.3% | 175,785 | $72.8M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.07% | Add +18.6% | 170,832 | $71.7M |
| Welch & Forbes LLC | 0.93% | Add +0.3% | 169,846 | $71.3M |
| Jupiter Asset Management Ltd. | 0.68% | Add +19.9% | 168,947 | $70.9M |
| Caisse de depot et placement du Quebec | 0.15% | Add +3.5% | 167,974 | $70.5M |
| Railway Pension Investments Ltd | 0.98% | Reduce -9.4% | 165,130 | $69.3M |
| Envestnet Asset Management Inc. | 0.02% | Add +8.2% | 161,829 | $68.0M |
| Two Creeks Capital Management, LP | 4.30% | Add +131.9% | 160,254 | $67.3M |
| LGT Capital Partners LTD. | 2.89% | Add +8.3% | 155,138 | $65.2M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.13% | Add +60.1% | 150,298 | $63.1M |
| Mackenzie Financial Corp. | 0.09% | Reduce -5.2% | 148,323 | $62.3M |
| Robeco Institutional Asset Management B.V. | 0.12% | Reduce -14.0% | 148,237 | $62.3M |
| Rathbones Group PLC | 0.29% | Add +5.4% | 143,768 | $60.4M |
| California Public Employees Retirement System | 0.04% | Reduce -0.7% | 141,702 | $59.5M |
| Aviva PLC | 0.14% | Add +12.3% | 138,627 | $58.2M |
| SG Americas Securities, LLC | 0.20% | Add +245.5% | 138,495 | $58.2M |
| Allianz Asset Management GmbH | 0.09% | Reduce -14.3% | 138,164 | $58.0M |
| Fiera Capital Corp | 0.21% | Reduce -2.6% | 137,588 | $57.8M |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 0.56% | Reduce -0.5% | 133,775 | $57.1M |
| ProShare Advisors LLC | 0.13% | Add +10.1% | 135,511 | $56.9M |
| Ameriprise Financial Inc. | 0.02% | Add +12.9% | 133,941 | $56.2M |
| Citigroup Inc. | 0.04% | Add +29.5% | 132,236 | $55.5M |
| National Pension Service | 0.05% | Add +7.4% | 126,400 | $53.1M |
| EULAV Asset Management | 1.31% | Add +0.0% | 126,215 | $53.0M |
| California State Teachers Retirement System | 0.07% | Reduce -1.8% | 126,094 | $53.0M |
| Waratah Capital Advisors Ltd. | 3.53% | New | 123,393 | $51.8M |
| Corient Private Wealth LP | 0.08% | Reduce -3.9% | 120,504 | $50.6M |
| Kayne Anderson Rudnick Investment Management LLC | 0.12% | Reduce -8.3% | 119,187 | $50.1M |
| Brown Advisory Inc. | 0.07% | Reduce -4.0% | 119,169 | $50.0M |
| BLI - Banque de Luxembourg Investments | 1.50% | Add +0.8% | 119,400 | $49.6M |
| Quantum Capital Management, LLC / NJ | 5.11% | Add +110.4% | 117,567 | $49.4M |
"% of holder's portfolio" is IDXX's weight in each manager's 13F, not the share of Idexx Laboratories Inc. the manager owns.