IDEXX Laboratories Inc (IDXX)
Healthcare
Diagnostics & Research
559.10 $
+0.0%
vs. previous close
Closing price · As of: 31. Jul 2026
Who owns IDEXX Laboratories Inc (IDXX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.6% of the shares are freely tradable; institutional investors hold 96.2%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
96.2%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
0.2%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
99.6%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
3.1%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
79Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Group Inc | 12.61 | 9,945,328 | -0.2 | 12/31/2025 |
| BlackRock Inc | 10.61 | 8,365,553 | -2.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 6.57 | 5,182,507 | +0.0 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 4.96 | 3,910,863 | +0.0 | 03/31/2026 |
| State Street Corp | 4.66 | 3,674,185 | +0.5 | 03/31/2026 |
| Geode Capital Management, LLC | 3.37 | 2,660,999 | +3.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 3.22 | 2,536,206 | +0.3 | 04/30/2026 |
| Vanguard 500 Index Investor | 2.63 | 2,071,054 | +1.8 | 04/30/2026 |
| Invesco QQQ Trust | 2.19 | 1,729,501 | +0.5 | 05/29/2026 |
| Vanguard Mid Cap Index Institutional | 2.19 | 1,723,904 | +0.2 | 04/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.