5 hedge funds and family offices disclose a IDXX position in their latest SEC 13F filing — combined $1.93B in market value.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Terry Smith | Fundsmith LLP | 1,876,035 | $1.27B | 7.42% | 2025-12-31 |
| 2 | Polen Capital | Polen Capital Management LLC | 960,537 | $649.8M | 2.78% | 2025-12-31 |
| 3 | Ray Dalio | Bridgewater Associates LP | 10,314 | $5.8M | 0.03% | 2026-03-31 |
| 4 | Mairs & Power | Mairs & Power Inc | 2,131 | $1.4M | 0.01% | 2025-12-31 |
| 5 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 80 | $54K | 0.01% | 2025-12-31 |
As of the latest 13F window, 5 tracked superinvestors hold IDXX. The largest disclosed position is Terry Smith at $1.27B (7.4% of portfolio).
13F filings are due 45 days after each quarter end and capture long-equity positions held by U.S. institutional managers with $100M+ AUM. Use this page to see exactly who is buying IDXX, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
5 hedge funds and family offices disclose a IDXX position in their latest SEC 13F filing — combined $1.93B in market value.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Terry Smith | Fundsmith LLP | 1,876,035 | $1.27B | 7.42% | 2025-12-31 |
| 2 | Polen Capital | Polen Capital Management LLC | 960,537 | $649.8M | 2.78% | 2025-12-31 |
| 3 | Ray Dalio | Bridgewater Associates LP | 10,314 | $5.8M | 0.03% | 2026-03-31 |
| 4 | Mairs & Power | Mairs & Power Inc | 2,131 | $1.4M | 0.01% | 2025-12-31 |
| 5 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 80 | $54K | 0.01% | 2025-12-31 |
As of the latest 13F window, 5 tracked superinvestors hold IDXX. The largest disclosed position is Terry Smith at $1.27B (7.4% of portfolio).
13F filings are due 45 days after each quarter end and capture long-equity positions held by U.S. institutional managers with $100M+ AUM. Use this page to see exactly who is buying IDXX, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
