IDXX fund manager activity
IDEXX LABORATORIES INC · US. Reported by 16 tracked fund managers in their 13F filings, Q2 2013 to Q2 2026.
Q4 2025
| Manager | Activity | Shares | Value | % of portfolio | Filed |
|---|
| Ron Baron - Baron Capital | Trimmed | 1,798,041 | $1,216,428,678 | 3.30% | Feb 17, 2026 |
| Ken Fisher - Fisher Asset Management | New | 304 | $205,881 | 0.00% | Feb 9, 2026 |
| Terry Smith - Fundsmith | Trimmed | 1,876,035 | $1,269,193,959 | 7.42% | Feb 17, 2026 |
| Jeremy Grantham - GMO | Added | 1,990 | $1,346,295 | 0.00% | Feb 17, 2026 |
| Joel Greenblatt - Gotham Asset Management | Added | 59,738 | $40,414,549 | 0.15% | Feb 17, 2026 |
| Jensen Investment Management | Trimmed | 3,571 | $2,415,889 | 0.04% | Feb 11, 2026 |
| Mairs & Power Funds | Trimmed | 2,131 | $1,441,685 | 0.01% | Feb 17, 2026 |
| Bill Nygren - Oakmark Funds | No change | 455 | $307,821 | 0.00% | Feb 17, 2026 |
| Polen Capital Management | Trimmed | 960,537 | $649,831,919 | 2.78% | Feb 12, 2026 |
| Wallace Weitz - Weitz Investment Management | Trimmed | 35,300 | $23,881,509 | 1.42% | Feb 12, 2026 |
Q3 2025
| Manager | Activity | Shares | Value | % of portfolio | Filed |
|---|
| Ron Baron - Baron Capital | Trimmed | 1,884,129 | $1,203,751,177 | 3.19% | Nov 14, 2025 |
| Terry Smith - Fundsmith | Trimmed | 2,610,457 | $1,667,794,873 | 8.43% | Nov 14, 2025 |
| Jeremy Grantham - GMO | New | 1,485 | $948,752 | 0.00% | Nov 13, 2025 |
| Joel Greenblatt - Gotham Asset Management | Added | 48,643 | $31,077,526 | 0.14% | Nov 14, 2025 |
| Jensen Investment Management | Trimmed | 4,430 | $2,830,283 | 0.04% | Nov 6, 2025 |
| Mairs & Power Funds | Trimmed | 2,144 | $1,369,780 | 0.01% | Nov 14, 2025 |
| Bill Nygren - Oakmark Funds | New | 455 | $290,695 | 0.00% | Nov 14, 2025 |
| Polen Capital Management | Trimmed | 1,127,147 | $720,123,065 | 2.34% | Nov 12, 2025 |
| Wallace Weitz - Weitz Investment Management | Trimmed | 56,800 | $36,288,952 | 1.97% | Nov 10, 2025 |
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