Idexx LaboratoriesIDXX
13F holders, Q4 2024 (December 31)1,124holders +7
89new positions
140sold out
11famous investors
$413.73avg. 13F price*
At the end of Q4 2024, 1,124 institutions reported holding Idexx Laboratories Inc. (IDXX) in their 13F filings, up 7 from Q3 2024. 89 opened new positions and 140 sold out. The largest holders were Vanguard Group Inc. ($4.0B), BlackRock, Inc. ($3.5B) and State Street Corp. ($1.5B). 11 famous investors held it, including Terry Smith (4.7% of Fundsmith's portfolio), Ron Baron (2.1% of Baron Capital (BAMCO)'s portfolio) and David E. Shaw (0.1% of D. E. Shaw & Co.'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 Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 89 | $378.1M |
| Exits | 140 | $264.4M |
All 13F filers, Q3 2024 → Q4 2024: 6,620,669 shares bought and 8,457,608 shares sold, net −1,836,939 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 1,124 holders
| Vanguard Group Inc. | 0.07% | Add +0.1% | 9,709,510 | $4.0B |
| BlackRock, Inc. | 0.07% | Reduce -10.0% | 8,472,562 | $3.5B |
| State Street Corp. | 0.06% | Add +0.7% | 3,637,560 | $1.5B |
| Fundsmith | 4.69% | Reduce -0.1% | 2,662,855 | $1.1B |
| Geode Capital Management, LLC | 0.07% | Add +1.7% | 2,297,271 | $948.3M |
| Baron Capital (BAMCO) | 2.14% | Add +4.3% | 2,005,522 | $829.2M |
| Morgan Stanley | 0.05% | Add +38.2% | 1,633,039 | $675.2M |
| Alliancebernstein L.P. | 0.17% | Reduce -56.0% | 1,239,220 | $512.3M |
| T. Rowe Price Associates Inc. | 0.06% | Reduce -24.3% | 1,162,947 | $480.8M |
| Invesco Ltd. | 0.09% | Add +6.8% | 1,160,988 | $480.0M |
| Blair William & Co. | 1.33% | Reduce -5.2% | 1,105,014 | $456.9M |
| Norges Bank | 0.05% | Reduce -0.2% | 997,140 | $412.3M |
| Northern Trust Corp. | 0.05% | Add +18.6% | 912,874 | $377.4M |
| Franklin Resources Inc. | 0.10% | Reduce -38.6% | 867,053 | $358.5M |
| Fundsmith Investment Services LTD. | 4.65% | No change | 865,008 | $357.6M |
| American Century Companies Inc. | 0.19% | Add +30.9% | 809,814 | $334.8M |
| Amundi | 0.11% | Add +8.1% | 758,669 | $328.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.08% | Add +4.5% | 785,878 | $324.9M |
| Principal Financial Group Inc. | 0.16% | Reduce -2.6% | 711,200 | $294.0M |
| Capital Research Global Investors | 0.05% | Add +44.4% | 615,996 | $254.7M |
| Legal & General Group Plc | 0.07% | Reduce -4.7% | 610,020 | $252.2M |
| Dimensional Fund Advisors LP | 0.06% | Reduce -2.7% | 586,701 | $242.6M |
| Bank of New York Mellon Corp | 0.04% | Reduce -3.5% | 577,044 | $238.6M |
| JPMorgan Chase & Co. | 0.02% | Reduce -12.3% | 537,438 | $222.2M |
| Charles Schwab Investment Management Inc. | 0.04% | Add +3.1% | 531,692 | $219.8M |
| Royal Bank of Canada | 0.04% | Add +9.7% | 481,140 | $198.9M |
| Macquarie Group Ltd. | 0.24% | Add +8.4% | 481,635 | $197.8M |
| Flossbach Von Storch SE | 0.78% | Add +5439.3% | 473,336 | $195.7M |
| Capital Counsel LLC | 8.09% | Reduce -2.8% | 457,815 | $189.3M |
| Pictet Asset Management Holding SA | 0.20% | Add +23.4% | 442,484 | $182.9M |
| BNP Paribas Financial Markets | 0.14% | Add +221.2% | 441,319 | $182.5M |
| Assenagon Asset Management S.A. | 0.32% | Add +265.6% | 435,049 | $179.9M |
| Goldman Sachs Group Inc. | 0.03% | Reduce -44.5% | 426,620 | $176.4M |
| William Blair Investment Management, LLC | 0.43% | Add +701.6% | 422,133 | $174.5M |
| Vontobel Holding Ltd. | 0.59% | Add +90.1% | 418,563 | $173.1M |
| Bank of America Corp. | 0.02% | Reduce -33.3% | 407,637 | $168.5M |
| Neuberger Berman Group LLC | 0.13% | Reduce -5.2% | 395,775 | $163.6M |
| HSBC Holdings PLC | 0.10% | Add +12.6% | 387,483 | $160.2M |
| Nuveen Asset Management, LLC | 0.04% | Reduce -6.7% | 384,486 | $159.0M |
| Alyeska Investment Group, L.P. | 0.59% | New | 378,318 | $156.4M |
| Deutsche Bank AG | 0.06% | Add +17.9% | 357,479 | $147.8M |
| UBS Group AG | 0.03% | Add +44.9% | 332,085 | $137.3M |
| Williams Jones Wealth Management, LLC. | 1.62% | Reduce -5.0% | 324,521 | $134.2M |
| FMR LLC | 0.01% | Reduce -1.4% | 286,899 | $118.6M |
| TD Asset Management Inc | 0.10% | Reduce -7.1% | 273,805 | $113.2M |
| Seilern Investment Management Ltd | 6.44% | — | 273,567 | $113.1M |
| Millennium Management | 0.09% | Add +64.5% | 256,228 | $105.9M |
| Clearbridge Investments, LLC | 0.08% | Reduce -26.5% | 252,128 | $104.2M |
| Aberdeen Group plc | 0.19% | Reduce -6.2% | 242,659 | $100.0M |
| Bank Julius Baer & Co. Ltd, Zurich | 0.31% | Add +7.5% | 223,841 | $99.1M |
| Swiss National Bank | 0.06% | Reduce -5.1% | 232,600 | $96.2M |
| Bessemer Group Inc. | 0.15% | Add +1708.8% | 229,246 | $94.8M |
| Qube Research & Technologies Ltd | 0.15% | Reduce -22.7% | 221,196 | $91.5M |
| Barclays PLC | 0.04% | Reduce -52.3% | 215,979 | $89.3M |
| First Trust Advisors LP | 0.08% | Add +8.5% | 213,106 | $88.1M |
| D. E. Shaw & Co. | 0.10% | Add +68.1% | 212,136 | $87.7M |
| Marshall Wace, LLP | 0.11% | Add +632.5% | 207,114 | $85.6M |
| American Capital Management Inc. | 3.17% | Reduce -17.2% | 206,062 | $85.2M |
| Sumitomo Mitsui Trust Group, Inc. | 0.06% | Add +0.5% | 198,450 | $82.0M |
| Wellington Management Group LLP | 0.01% | Add +161.2% | 195,369 | $80.8M |
| TimesSquare Capital Management, LLC | 1.17% | Add +31.9% | 193,516 | $80.0M |
| Comgest Global Investors S.A.S. | 1.30% | Add +313.6% | 191,511 | $79.2M |
| Railway Pension Investments Ltd | 1.00% | Reduce -5.5% | 182,330 | $75.4M |
| Rhumbline Advisers | 0.07% | Reduce -3.8% | 175,970 | $72.8M |
| Raymond James Financial Inc. | 0.03% | — | 173,890 | $71.9M |
| Victory Capital Management Inc. | 0.07% | Add +21.4% | 173,131 | $71.6M |
| Robeco Institutional Asset Management B.V. | 0.14% | Reduce -26.0% | 172,328 | $71.2M |
| Epoch Investment Partners, Inc. | 0.34% | Add +0.2% | 171,171 | $70.8M |
| Welch & Forbes LLC | 0.90% | Add +0.1% | 169,319 | $70.0M |
| Squarepoint Ops LLC | 0.17% | Add +108.8% | 163,510 | $67.6M |
| Baird Financial Group, Inc. | 0.13% | Reduce -22.3% | 163,345 | $67.5M |
| Caisse de depot et placement du Quebec | 0.14% | Add +88.9% | 162,310 | $67.1M |
| Allianz Asset Management GmbH | 0.10% | Reduce -4.2% | 161,261 | $66.7M |
| Voloridge Investment Management, LLC | 0.23% | Add +142.9% | 158,511 | $65.5M |
| Mackenzie Financial Corp. | 0.09% | Add +236.5% | 156,520 | $64.7M |
| Envestnet Asset Management Inc. | 0.02% | Reduce -22.4% | 149,574 | $61.8M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.06% | Add +8.3% | 144,011 | $59.8M |
| LGT Capital Partners LTD. | 2.25% | Add +3.5% | 143,298 | $59.2M |
| California Public Employees Retirement System | 0.04% | Reduce -6.1% | 142,630 | $59.0M |
| Arrowstreet Capital, Limited Partnership | 0.05% | Add +6.5% | 142,192 | $58.8M |
| Fiera Capital Corp | 0.18% | Add +12.3% | 141,198 | $58.4M |
| Jupiter Asset Management Ltd. | 0.57% | Reduce -5.2% | 140,969 | $58.3M |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 0.49% | Reduce -0.3% | 134,459 | $57.5M |
| Rathbones Group PLC | 0.27% | Add +22.7% | 136,437 | $56.4M |
| Worldquant Millennium Advisors LLC | 0.35% | Add +20.0% | 132,193 | $54.7M |
| Canada Pension Plan Investment Board | 0.05% | Add +12.1% | 130,100 | $53.8M |
| Kayne Anderson Rudnick Investment Management LLC | 0.12% | Reduce -4.9% | 129,902 | $53.7M |
| California State Teachers Retirement System | 0.06% | Reduce -4.0% | 128,385 | $53.1M |
| EULAV Asset Management | 1.26% | No change | 126,212 | $52.2M |
| Corient Private Wealth LP | 0.09% | Reduce -59.0% | 125,450 | $51.9M |
| Brown Advisory Inc. | 0.07% | Reduce -88.6% | 124,101 | $51.3M |
| Aviva PLC | 0.13% | Add +23.6% | 123,441 | $51.0M |
| ProShare Advisors LLC | 0.12% | Add +20.1% | 123,097 | $50.9M |
| AQR Capital Management | 0.07% | Add +133.6% | 122,679 | $50.7M |
| Bank of Montreal | 0.02% | Add +3.9% | 120,276 | $49.7M |
| Ameriprise Financial Inc. | 0.01% | Reduce -44.1% | 118,601 | $49.0M |
| BLI - Banque de Luxembourg Investments | 1.33% | — | 118,400 | $48.9M |
| National Pension Service | 0.05% | Reduce -36.7% | 117,648 | $48.6M |
| Stephens Investment Management Group LLC | 0.60% | Add +3.6% | 108,649 | $44.9M |
| Riverbridge Partners LLC | 0.58% | Reduce -4.1% | 103,381 | $42.7M |
"% of holder's portfolio" is IDXX's weight in each manager's 13F, not the share of Idexx Laboratories Inc. the manager owns.